---
_id: '8337'
abstract:
- lang: eng
  text: Cytokinins are mobile multifunctional plant hormones with roles in development
    and stress resilience. Although their Histidine Kinase receptors are substantially
    localised to the endoplasmic reticulum, cellular sites of cytokinin perception
    and importance of spatially heterogeneous cytokinin distribution continue to be
    debated. Here we show that cytokinin perception by plasma membrane receptors is
    an effective additional path for cytokinin response. Readout from a Two Component
    Signalling cytokinin-specific reporter (TCSn::GFP) closely matches intracellular
    cytokinin content in roots, yet we also find cytokinins in extracellular fluid,
    potentially enabling action at the cell surface. Cytokinins covalently linked
    to beads that could not pass the plasma membrane increased expression of both
    TCSn::GFP and Cytokinin Response Factors. Super-resolution microscopy of GFP-labelled
    receptors and diminished TCSn::GFP response to immobilised cytokinins in cytokinin
    receptor mutants, further indicate that receptors can function at the cell surface.
    We argue that dual intracellular and surface locations may augment flexibility
    of cytokinin responses.
acknowledged_ssus:
- _id: Bio
acknowledgement: 'We thank Bruno Müller and Aaron Rashotte for critical discussions
  and provision of plant lines used in this work, Roger Granbom and Tamara Hernández
  Verdeja (UPSC, Umeå, Sweden) for technical assistance and providing materials, Zuzana
  Pěkná and Karolina Wojewodová (CRH, Palacký University, Olomouc, Czech Republic)
  for help with cytokinin receptor binding assays, and David Zalabák (CRH, Palacký
  University, Olomouc, Czech Republic) for provision of vector pINIIIΔEH expressing
  CRE1/AHK4. The bioimaging facility of IST Austria, the Swedish Metabolomics Centre
  and the IST Austria Bio-Imaging facility are acknowledged for support. The work
  was funded by the European Molecular Biology Organization (EMBO ASTF 297-2013) (I.A.),
  Development—The Company of Biologists (DEVTF2012) (I.A.; C.T.), Plant Fellows (the
  International Post doc Fellowship Programme in Plant Sciences, 267423) (I.A.; K.L.),
  the Swedish Research Council (621-2014-4514) (K.L.), UPSC Berzelii Center for Forest
  Biotechnology (Vinnova 2012-01560), Kempestiftelserna (JCK-2711) (K.L.) and (JCK-1811)
  (E.-M.B., K.L.). The Ministry of Education, Youth and Sports of the Czech Republic
  via the European Regional Development Fund-Project “Plants as a tool for sustainable
  global development” (CZ.02.1.01/0.0/0.0/16_019/0000827) (O.N., O.P., R.S., V.M.,
  L.P., K.D.) and project CEITEC 2020 (LQ1601) (M.P., J.H.) provided support, as did
  the Czech Science Foundation via projects GP14-30004P (M.P.) and 16-04184S (O.P.,
  K.D., O.N.), Vetenskapsrådet and Vinnova (Verket för Innovationssystem) (T.V., S.R.),
  Knut och Alice Wallenbergs Stiftelse via “Shapesystem” grant number 2012.0050. A.J.
  was supported by the Austria Science Fund (FWF): I03630 to J.F. The research leading
  to these results received funding from European Union’s Horizon 2020 programme (ERC
  grant no. 742985) and FWO-FWF joint project G0E5718N to J.F.'
article_number: '4284'
article_processing_charge: No
article_type: original
author:
- first_name: Ioanna
  full_name: Antoniadi, Ioanna
  last_name: Antoniadi
- first_name: Ondřej
  full_name: Novák, Ondřej
  last_name: Novák
- first_name: Zuzana
  full_name: Gelová, Zuzana
  id: 0AE74790-0E0B-11E9-ABC7-1ACFE5697425
  last_name: Gelová
  orcid: 0000-0003-4783-1752
- first_name: Alexander J
  full_name: Johnson, Alexander J
  id: 46A62C3A-F248-11E8-B48F-1D18A9856A87
  last_name: Johnson
  orcid: 0000-0002-2739-8843
- first_name: Ondřej
  full_name: Plíhal, Ondřej
  last_name: Plíhal
- first_name: Radim
  full_name: Simerský, Radim
  last_name: Simerský
- first_name: Václav
  full_name: Mik, Václav
  last_name: Mik
- first_name: Thomas
  full_name: Vain, Thomas
  last_name: Vain
- first_name: Eduardo
  full_name: Mateo-Bonmatí, Eduardo
  last_name: Mateo-Bonmatí
- first_name: Michal
  full_name: Karady, Michal
  last_name: Karady
- first_name: Markéta
  full_name: Pernisová, Markéta
  last_name: Pernisová
- first_name: Lenka
  full_name: Plačková, Lenka
  last_name: Plačková
- first_name: Korawit
  full_name: Opassathian, Korawit
  last_name: Opassathian
- first_name: Jan
  full_name: Hejátko, Jan
  last_name: Hejátko
- first_name: Stéphanie
  full_name: Robert, Stéphanie
  last_name: Robert
- first_name: Jiří
  full_name: Friml, Jiří
  id: 4159519E-F248-11E8-B48F-1D18A9856A87
  last_name: Friml
  orcid: 0000-0002-8302-7596
- first_name: Karel
  full_name: Doležal, Karel
  last_name: Doležal
- first_name: Karin
  full_name: Ljung, Karin
  last_name: Ljung
- first_name: Colin
  full_name: Turnbull, Colin
  last_name: Turnbull
citation:
  ama: Antoniadi I, Novák O, Gelová Z, et al. Cell-surface receptors enable perception
    of extracellular cytokinins. <i>Nature Communications</i>. 2020;11. doi:<a href="https://doi.org/10.1038/s41467-020-17700-9">10.1038/s41467-020-17700-9</a>
  apa: Antoniadi, I., Novák, O., Gelová, Z., Johnson, A. J., Plíhal, O., Simerský,
    R., … Turnbull, C. (2020). Cell-surface receptors enable perception of extracellular
    cytokinins. <i>Nature Communications</i>. Springer Nature. <a href="https://doi.org/10.1038/s41467-020-17700-9">https://doi.org/10.1038/s41467-020-17700-9</a>
  chicago: Antoniadi, Ioanna, Ondřej Novák, Zuzana Gelová, Alexander J Johnson, Ondřej
    Plíhal, Radim Simerský, Václav Mik, et al. “Cell-Surface Receptors Enable Perception
    of Extracellular Cytokinins.” <i>Nature Communications</i>. Springer Nature, 2020.
    <a href="https://doi.org/10.1038/s41467-020-17700-9">https://doi.org/10.1038/s41467-020-17700-9</a>.
  ieee: I. Antoniadi <i>et al.</i>, “Cell-surface receptors enable perception of extracellular
    cytokinins,” <i>Nature Communications</i>, vol. 11. Springer Nature, 2020.
  ista: Antoniadi I, Novák O, Gelová Z, Johnson AJ, Plíhal O, Simerský R, Mik V, Vain
    T, Mateo-Bonmatí E, Karady M, Pernisová M, Plačková L, Opassathian K, Hejátko
    J, Robert S, Friml J, Doležal K, Ljung K, Turnbull C. 2020. Cell-surface receptors
    enable perception of extracellular cytokinins. Nature Communications. 11, 4284.
  mla: Antoniadi, Ioanna, et al. “Cell-Surface Receptors Enable Perception of Extracellular
    Cytokinins.” <i>Nature Communications</i>, vol. 11, 4284, Springer Nature, 2020,
    doi:<a href="https://doi.org/10.1038/s41467-020-17700-9">10.1038/s41467-020-17700-9</a>.
  short: I. Antoniadi, O. Novák, Z. Gelová, A.J. Johnson, O. Plíhal, R. Simerský,
    V. Mik, T. Vain, E. Mateo-Bonmatí, M. Karady, M. Pernisová, L. Plačková, K. Opassathian,
    J. Hejátko, S. Robert, J. Friml, K. Doležal, K. Ljung, C. Turnbull, Nature Communications
    11 (2020).
date_created: 2020-09-06T22:01:13Z
date_published: 2020-08-27T00:00:00Z
date_updated: 2023-08-22T09:10:32Z
day: '27'
ddc:
- '580'
department:
- _id: JiFr
doi: 10.1038/s41467-020-17700-9
ec_funded: 1
external_id:
  isi:
  - '000567931000001'
file:
- access_level: open_access
  checksum: 5b96f39b598de7510cfefefb819b9a6d
  content_type: application/pdf
  creator: dernst
  date_created: 2020-12-10T12:23:56Z
  date_updated: 2020-12-10T12:23:56Z
  file_id: '8936'
  file_name: 2020_NatureComm_Antoniadi.pdf
  file_size: 3526415
  relation: main_file
  success: 1
file_date_updated: 2020-12-10T12:23:56Z
has_accepted_license: '1'
intvolume: '        11'
isi: 1
language:
- iso: eng
license: https://creativecommons.org/licenses/by/4.0/
month: '08'
oa: 1
oa_version: Published Version
project:
- _id: 26538374-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: I03630
  name: Molecular mechanisms of endocytic cargo recognition in plants
- _id: 261099A6-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '742985'
  name: Tracing Evolution of Auxin Transport and Polarity in Plants
publication: Nature Communications
publication_identifier:
  eissn:
  - '20411723'
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Cell-surface receptors enable perception of extracellular cytokinins
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 11
year: '2020'
...
---
_id: '8339'
abstract:
- lang: eng
  text: "Discrete Gaussian distributions over lattices are central to lattice-based
    cryptography, and to the computational and mathematical aspects of lattices more
    broadly. The literature contains a wealth of useful theorems about the behavior
    of discrete Gaussians under convolutions and related operations. Yet despite their
    structural similarities, most of these theorems are formally incomparable, and
    their proofs tend to be monolithic and written nearly “from scratch,” making them
    unnecessarily hard to verify, understand, and extend.\r\nIn this work we present
    a modular framework for analyzing linear operations on discrete Gaussian distributions.
    The framework abstracts away the particulars of Gaussians, and usually reduces
    proofs to the choice of appropriate linear transformations and elementary linear
    algebra. To showcase the approach, we establish several general properties of
    discrete Gaussians, and show how to obtain all prior convolution theorems (along
    with some new ones) as straightforward corollaries. As another application, we
    describe a self-reduction for Learning With Errors (LWE) that uses a fixed number
    of samples to generate an unlimited number of additional ones (having somewhat
    larger error). The distinguishing features of our reduction are its simple analysis
    in our framework, and its exclusive use of discrete Gaussians without any loss
    in parameters relative to a prior mixed discrete-and-continuous approach.\r\nAs
    a contribution of independent interest, for subgaussian random matrices we prove
    a singular value concentration bound with explicitly stated constants, and we
    give tighter heuristics for specific distributions that are commonly used for
    generating lattice trapdoors. These bounds yield improvements in the concrete
    bit-security estimates for trapdoor lattice cryptosystems."
alternative_title:
- LNCS
article_processing_charge: No
author:
- first_name: Nicholas
  full_name: Genise, Nicholas
  last_name: Genise
- first_name: Daniele
  full_name: Micciancio, Daniele
  last_name: Micciancio
- first_name: Chris
  full_name: Peikert, Chris
  last_name: Peikert
- first_name: Michael
  full_name: Walter, Michael
  id: 488F98B0-F248-11E8-B48F-1D18A9856A87
  last_name: Walter
  orcid: 0000-0003-3186-2482
citation:
  ama: 'Genise N, Micciancio D, Peikert C, Walter M. Improved discrete Gaussian and
    subgaussian analysis for lattice cryptography. In: <i>23rd IACR International
    Conference on the Practice and Theory of Public-Key Cryptography</i>. Vol 12110.
    Springer Nature; 2020:623-651. doi:<a href="https://doi.org/10.1007/978-3-030-45374-9_21">10.1007/978-3-030-45374-9_21</a>'
  apa: 'Genise, N., Micciancio, D., Peikert, C., &#38; Walter, M. (2020). Improved
    discrete Gaussian and subgaussian analysis for lattice cryptography. In <i>23rd
    IACR International Conference on the Practice and Theory of Public-Key Cryptography</i>
    (Vol. 12110, pp. 623–651). Edinburgh, United Kingdom: Springer Nature. <a href="https://doi.org/10.1007/978-3-030-45374-9_21">https://doi.org/10.1007/978-3-030-45374-9_21</a>'
  chicago: Genise, Nicholas, Daniele Micciancio, Chris Peikert, and Michael Walter.
    “Improved Discrete Gaussian and Subgaussian Analysis for Lattice Cryptography.”
    In <i>23rd IACR International Conference on the Practice and Theory of Public-Key
    Cryptography</i>, 12110:623–51. Springer Nature, 2020. <a href="https://doi.org/10.1007/978-3-030-45374-9_21">https://doi.org/10.1007/978-3-030-45374-9_21</a>.
  ieee: N. Genise, D. Micciancio, C. Peikert, and M. Walter, “Improved discrete Gaussian
    and subgaussian analysis for lattice cryptography,” in <i>23rd IACR International
    Conference on the Practice and Theory of Public-Key Cryptography</i>, Edinburgh,
    United Kingdom, 2020, vol. 12110, pp. 623–651.
  ista: 'Genise N, Micciancio D, Peikert C, Walter M. 2020. Improved discrete Gaussian
    and subgaussian analysis for lattice cryptography. 23rd IACR International Conference
    on the Practice and Theory of Public-Key Cryptography. PKC: Public-Key Cryptography,
    LNCS, vol. 12110, 623–651.'
  mla: Genise, Nicholas, et al. “Improved Discrete Gaussian and Subgaussian Analysis
    for Lattice Cryptography.” <i>23rd IACR International Conference on the Practice
    and Theory of Public-Key Cryptography</i>, vol. 12110, Springer Nature, 2020,
    pp. 623–51, doi:<a href="https://doi.org/10.1007/978-3-030-45374-9_21">10.1007/978-3-030-45374-9_21</a>.
  short: N. Genise, D. Micciancio, C. Peikert, M. Walter, in:, 23rd IACR International
    Conference on the Practice and Theory of Public-Key Cryptography, Springer Nature,
    2020, pp. 623–651.
conference:
  end_date: 2020-05-07
  location: Edinburgh, United Kingdom
  name: 'PKC: Public-Key Cryptography'
  start_date: 2020-05-04
date_created: 2020-09-06T22:01:13Z
date_published: 2020-05-15T00:00:00Z
date_updated: 2023-02-23T13:31:06Z
day: '15'
department:
- _id: KrPi
doi: 10.1007/978-3-030-45374-9_21
ec_funded: 1
intvolume: '     12110'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://eprint.iacr.org/2020/337
month: '05'
oa: 1
oa_version: Preprint
page: 623-651
project:
- _id: 258AA5B2-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '682815'
  name: Teaching Old Crypto New Tricks
publication: 23rd IACR International Conference on the Practice and Theory of Public-Key
  Cryptography
publication_identifier:
  eissn:
  - '16113349'
  isbn:
  - '9783030453732'
  issn:
  - '03029743'
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Improved discrete Gaussian and subgaussian analysis for lattice cryptography
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 12110
year: '2020'
...
---
_id: '8340'
abstract:
- lang: eng
  text: Mitochondria are sites of oxidative phosphorylation in eukaryotic cells. Oxidative
    phosphorylation operates by a chemiosmotic mechanism made possible by redox-driven
    proton pumping machines which establish a proton motive force across the inner
    mitochondrial membrane. This electrochemical proton gradient is used to drive
    ATP synthesis, which powers the majority of cellular processes such as protein
    synthesis, locomotion and signalling. In this thesis I investigate the structures
    and molecular mechanisms of two inner mitochondrial proton pumping enzymes, respiratory
    complex I and transhydrogenase. I present the first high-resolution structure
    of the full transhydrogenase from any species, and a significantly improved structure
    of complex I. Improving the resolution from 3.3 Å available previously to up to
    2.3 Å in this thesis allowed us to model bound water molecules, crucial in the
    proton pumping mechanism. For both enzymes, up to five cryo-EM datasets with different
    substrates and inhibitors bound were solved to delineate the catalytic cycle and
    understand the proton pumping mechanism. In transhydrogenase, the proton channel
    is gated by reversible detachment of the NADP(H)-binding domain which opens the
    proton channel to the opposite sites of the membrane. In complex I, the proton
    channels are gated by reversible protonation of key glutamate and lysine residues
    and breaking of the water wire connecting the proton pumps with the quinone reduction
    site. The tight coupling between the redox and the proton pumping reactions in
    transhydrogenase is achieved by controlling the NADP(H) exchange which can only
    happen when the NADP(H)-binding domain interacts with the membrane domain. In
    complex I, coupling is achieved by cycling of the whole complex between the closed
    state, in which quinone can get reduced, and the open state, in which NADH can
    induce quinol ejection from the binding pocket. On the basis of these results
    I propose detailed mechanisms for catalytic cycles of transhydrogenase and complex
    I that are consistent with a large amount of previous work. In both enzymes, conformational
    and electrostatic mechanisms contribute to the overall catalytic process. Results
    presented here could be used for better understanding of the human pathologies
    arising from deficiencies of complex I or transhydrogenase and could be used to
    develop novel therapies.
acknowledged_ssus:
- _id: EM-Fac
acknowledgement: 'I acknowledge the support of IST facilities, especially the Electron
  Miscroscopy facility for providing training and resources. Special thanks also go
  to cryo-EM specialists who helped me to collect the data present here: Dr Valentin
  Hodirnau (IST Austria), Dr Tom Heuser (IMBA, Vienna), Dr Rebecca Thompson (Uni.
  of Leeds) and Dr Jirka Nováček (CEITEC). This work has been supported by iNEXT,
  project number 653706, funded by the Horizon 2020 programme of the European Union.
  This project has received funding from the European Union’s Horizon 2020 research
  and innovation programme under the Marie Skłodowska-Curie Grant Agreement No. 665385.'
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Domen
  full_name: Kampjut, Domen
  id: 37233050-F248-11E8-B48F-1D18A9856A87
  last_name: Kampjut
citation:
  ama: Kampjut D. Molecular mechanisms of mitochondrial redox-coupled proton pumping
    enzymes. 2020. doi:<a href="https://doi.org/10.15479/AT:ISTA:8340">10.15479/AT:ISTA:8340</a>
  apa: Kampjut, D. (2020). <i>Molecular mechanisms of mitochondrial redox-coupled
    proton pumping enzymes</i>. Institute of Science and Technology Austria. <a href="https://doi.org/10.15479/AT:ISTA:8340">https://doi.org/10.15479/AT:ISTA:8340</a>
  chicago: Kampjut, Domen. “Molecular Mechanisms of Mitochondrial Redox-Coupled Proton
    Pumping Enzymes.” Institute of Science and Technology Austria, 2020. <a href="https://doi.org/10.15479/AT:ISTA:8340">https://doi.org/10.15479/AT:ISTA:8340</a>.
  ieee: D. Kampjut, “Molecular mechanisms of mitochondrial redox-coupled proton pumping
    enzymes,” Institute of Science and Technology Austria, 2020.
  ista: Kampjut D. 2020. Molecular mechanisms of mitochondrial redox-coupled proton
    pumping enzymes. Institute of Science and Technology Austria.
  mla: Kampjut, Domen. <i>Molecular Mechanisms of Mitochondrial Redox-Coupled Proton
    Pumping Enzymes</i>. Institute of Science and Technology Austria, 2020, doi:<a
    href="https://doi.org/10.15479/AT:ISTA:8340">10.15479/AT:ISTA:8340</a>.
  short: D. Kampjut, Molecular Mechanisms of Mitochondrial Redox-Coupled Proton Pumping
    Enzymes, Institute of Science and Technology Austria, 2020.
date_created: 2020-09-07T18:42:23Z
date_published: 2020-09-09T00:00:00Z
date_updated: 2023-09-07T13:26:17Z
day: '09'
ddc:
- '572'
degree_awarded: PhD
department:
- _id: LeSa
doi: 10.15479/AT:ISTA:8340
ec_funded: 1
file:
- access_level: closed
  checksum: dd270baf82121eb4472ad19d77bf227c
  content_type: application/vnd.openxmlformats-officedocument.wordprocessingml.document
  creator: dkampjut
  date_created: 2020-09-08T13:32:06Z
  date_updated: 2021-09-11T22:30:04Z
  embargo_to: open_access
  file_id: '8345'
  file_name: ThesisFull20200908.docx
  file_size: 166146359
  relation: source_file
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  checksum: 82fce6f95ffa47ecc4ebca67ea2cc38c
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  creator: dernst
  date_created: 2020-09-14T15:02:20Z
  date_updated: 2021-09-11T22:30:04Z
  embargo: 2021-09-10
  file_id: '8393'
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  file_size: 13873769
  relation: main_file
file_date_updated: 2021-09-11T22:30:04Z
has_accepted_license: '1'
language:
- iso: eng
month: '09'
oa: 1
oa_version: None
page: '242'
project:
- _id: 2564DBCA-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '665385'
  name: International IST Doctoral Program
publication_identifier:
  isbn:
  - 978-3-99078-008-4
  issn:
  - 2663-337X
publication_status: published
publisher: Institute of Science and Technology Austria
related_material:
  record:
  - id: '6848'
    relation: part_of_dissertation
    status: public
status: public
supervisor:
- first_name: Leonid A
  full_name: Sazanov, Leonid A
  id: 338D39FE-F248-11E8-B48F-1D18A9856A87
  last_name: Sazanov
  orcid: 0000-0002-0977-7989
title: Molecular mechanisms of mitochondrial redox-coupled proton pumping enzymes
type: dissertation
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
year: '2020'
...
---
_id: '8341'
abstract:
- lang: eng
  text: "One of the most striking hallmarks of the eukaryotic cell is the presence
    of intracellular vesicles and organelles. Each of these membrane-enclosed compartments
    has a distinct composition of lipids and proteins, which is essential for accurate
    membrane traffic and homeostasis. Interestingly, their biochemical identities
    are achieved with the help\r\nof small GTPases of the Rab family, which cycle
    between GDP- and GTP-bound forms on the selected membrane surface. While this
    activity switch is well understood for an individual protein, how Rab GTPases
    collectively transition between states to generate decisive signal propagation
    in space and time is unclear. In my PhD thesis, I present\r\nin vitro reconstitution
    experiments with theoretical modeling to systematically study a minimal Rab5 activation
    network from bottom-up. We find that positive feedback based on known molecular
    interactions gives rise to bistable GTPase activity switching on system’s scale.
    Furthermore, we determine that collective transition near the critical\r\npoint
    is intrinsically stochastic and provide evidence that the inactive Rab5 abundance
    on the membrane can shape the network response. Finally, we demonstrate that collective
    switching can spread on the lipid bilayer as a traveling activation wave, representing
    a possible emergent activity pattern in endosomal maturation. Together, our\r\nfindings
    reveal new insights into the self-organization properties of signaling networks
    away from chemical equilibrium. Our work highlights the importance of systematic
    characterization of biochemical systems in well-defined physiological conditions.
    This way, we were able to answer long-standing open questions in the field and
    close the gap between regulatory processes on a molecular scale and emergent responses
    on system’s level."
acknowledged_ssus:
- _id: Bio
- _id: LifeSc
- _id: NanoFab
acknowledgement: My thanks goes to the Loose lab members, BioImaging, Life Science
  and Nanofabrication Facilities and the wonderful international community at IST
  for sharing this experience with me.
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Urban
  full_name: Bezeljak, Urban
  id: 2A58201A-F248-11E8-B48F-1D18A9856A87
  last_name: Bezeljak
  orcid: 0000-0003-1365-5631
citation:
  ama: Bezeljak U. In vitro reconstitution of a Rab activation switch. 2020. doi:<a
    href="https://doi.org/10.15479/AT:ISTA:8341">10.15479/AT:ISTA:8341</a>
  apa: Bezeljak, U. (2020). <i>In vitro reconstitution of a Rab activation switch</i>.
    Institute of Science and Technology Austria. <a href="https://doi.org/10.15479/AT:ISTA:8341">https://doi.org/10.15479/AT:ISTA:8341</a>
  chicago: Bezeljak, Urban. “In Vitro Reconstitution of a Rab Activation Switch.”
    Institute of Science and Technology Austria, 2020. <a href="https://doi.org/10.15479/AT:ISTA:8341">https://doi.org/10.15479/AT:ISTA:8341</a>.
  ieee: U. Bezeljak, “In vitro reconstitution of a Rab activation switch,” Institute
    of Science and Technology Austria, 2020.
  ista: Bezeljak U. 2020. In vitro reconstitution of a Rab activation switch. Institute
    of Science and Technology Austria.
  mla: Bezeljak, Urban. <i>In Vitro Reconstitution of a Rab Activation Switch</i>.
    Institute of Science and Technology Austria, 2020, doi:<a href="https://doi.org/10.15479/AT:ISTA:8341">10.15479/AT:ISTA:8341</a>.
  short: U. Bezeljak, In Vitro Reconstitution of a Rab Activation Switch, Institute
    of Science and Technology Austria, 2020.
date_created: 2020-09-08T08:53:53Z
date_published: 2020-09-08T00:00:00Z
date_updated: 2023-09-07T13:17:06Z
day: '08'
ddc:
- '570'
degree_awarded: PhD
department:
- _id: MaLo
doi: 10.15479/AT:ISTA:8341
file:
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  checksum: 70871b335a595252a66c6bbf0824fb02
  content_type: application/x-zip-compressed
  creator: dernst
  date_created: 2020-09-08T09:00:29Z
  date_updated: 2021-09-16T12:49:12Z
  file_id: '8342'
  file_name: 2020_Urban_Bezeljak_Thesis_TeX.zip
  file_size: 65246782
  relation: source_file
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  checksum: 59a62275088b00b7241e6ff4136434c7
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  creator: dernst
  date_created: 2020-09-08T09:00:27Z
  date_updated: 2021-09-16T12:49:12Z
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  file_name: 2020_Urban_Bezeljak_Thesis.pdf
  file_size: 31259058
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file_date_updated: 2021-09-16T12:49:12Z
has_accepted_license: '1'
language:
- iso: eng
license: https://creativecommons.org/licenses/by-nc-sa/4.0/
month: '09'
oa: 1
oa_version: Published Version
page: '215'
publication_identifier:
  issn:
  - 2663-337X
publication_status: published
publisher: Institute of Science and Technology Austria
related_material:
  record:
  - id: '7580'
    relation: part_of_dissertation
    status: public
status: public
supervisor:
- first_name: Martin
  full_name: Loose, Martin
  id: 462D4284-F248-11E8-B48F-1D18A9856A87
  last_name: Loose
  orcid: 0000-0001-7309-9724
title: In vitro reconstitution of a Rab activation switch
tmp:
  image: /images/cc_by_nc_sa.png
  legal_code_url: https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode
  name: Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC
    BY-NC-SA 4.0)
  short: CC BY-NC-SA (4.0)
type: dissertation
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
year: '2020'
...
---
_id: '8350'
abstract:
- lang: eng
  text: "Cytoplasm is a gel-like crowded environment composed of tens of thousands
    of macromolecules, organelles, cytoskeletal networks and cytosol. The structure
    of the cytoplasm is thought to be highly organized and heterogeneous due to the
    crowding of its constituents and their effective compartmentalization. In such
    an environment, the diffusive dynamics of the molecules is very restricted, an
    effect that is further amplified by clustering and anchoring of molecules. Despite
    the jammed nature of the cytoplasm at the microscopic scale, large-scale reorganization
    of cytoplasm is essential for important cellular functions, such as nuclear positioning
    and cell division. How such mesoscale reorganization of the cytoplasm is achieved,
    especially for very large cells such as oocytes or syncytial tissues that can
    span hundreds of micrometers in size, has only begun to be understood.\r\nIn this
    thesis, I focus on the recent advances in elucidating the molecular, cellular
    and biophysical principles underlying cytoplasmic organization across different
    scales, structures and species. First, I outline which of these principles have
    been identified by reductionist approaches, such as in vitro reconstitution assays,
    where boundary conditions and components can be modulated at ease. I then describe
    how the theoretical and experimental framework established in these reduced systems
    have been applied to their more complex in vivo counterparts, in particular oocytes
    and embryonic syncytial structures, and discuss how such complex biological systems
    can initiate symmetry breaking and establish patterning.\r\nSpecifically, I examine
    an example of large-scale reorganizations taking place in zebrafish embryos, where
    extensive cytoplasmic streaming leads to the segregation of cytoplasm from yolk
    granules along the animal-vegetal axis of the embryo. Using biophysical experimentation
    and theory, I investigate the forces underlying this process, to show that this
    process does not rely on cortical actin reorganization, as previously thought,
    but instead on a cell-cycle-dependent bulk actin polymerization wave traveling
    from the animal to the vegetal pole of the embryo. This wave functions in segregation
    by both pulling cytoplasm animally and pushing yolk granules vegetally. Cytoplasm
    pulling is mediated by bulk actin network flows exerting friction forces on the
    cytoplasm, while yolk granule pushing is achieved by a mechanism closely resembling
    actin comet formation on yolk granules. This study defines a novel role of bulk
    actin polymerization waves in embryo polarization via cytoplasmic segregation.
    Lastly, I describe the cytoplasmic reorganizations taking place during zebrafish
    oocyte maturation, where the initial segregation of the cytoplasm and yolk granules
    occurs. Here, I demonstrate a previously uncharacterized wave of microtubule aster
    formation, traveling the oocyte along the animal-vegetal axis. Further research
    is required to determine the role of such microtubule structures in cytoplasmic
    reorganizations therein.\r\nCollectively, these studies provide further evidence
    for the coupling between cell cytoskeleton and cell cycle machinery, which can
    underlie a core self-organizing mechanism for orchestrating large-scale reorganizations
    in a cell-cycle-tunable manner, where the modulations of the force-generating
    machinery and cytoplasmic mechanics can be harbored to fulfill cellular functions."
acknowledged_ssus:
- _id: PreCl
- _id: Bio
- _id: EM-Fac
acknowledgement: "I would have had no fish and hence no results without our wonderful
  fish facility crew, Verena Mayer, Eva Schlegl, Andreas Mlak and Matthias Nowak.
  Special thanks to Verena for being always happy to help and dealing with our chaotic
  schedules in the lab. Danke auch, Verena, für deine Geduld, mit mir auf Deutsch
  zu sprechen. Das hat mir sehr geholfen.\r\nSpecial thanks to the Bioimaging and
  EM facilities at IST Austria for supporting us every day. Very special thanks would
  go to Robert Hauschild for his continuous support on data analysis and also to Jack
  Merrin for designing and building microfabricated chambers for the project and for
  the various discussions on making zebrafish extracts."
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Shayan
  full_name: Shamipour, Shayan
  id: 40B34FE2-F248-11E8-B48F-1D18A9856A87
  last_name: Shamipour
citation:
  ama: Shamipour S. Bulk actin dynamics drive phase segregation in zebrafish oocytes
    . 2020. doi:<a href="https://doi.org/10.15479/AT:ISTA:8350">10.15479/AT:ISTA:8350</a>
  apa: Shamipour, S. (2020). <i>Bulk actin dynamics drive phase segregation in zebrafish
    oocytes </i>. Institute of Science and Technology Austria. <a href="https://doi.org/10.15479/AT:ISTA:8350">https://doi.org/10.15479/AT:ISTA:8350</a>
  chicago: Shamipour, Shayan. “Bulk Actin Dynamics Drive Phase Segregation in Zebrafish
    Oocytes .” Institute of Science and Technology Austria, 2020. <a href="https://doi.org/10.15479/AT:ISTA:8350">https://doi.org/10.15479/AT:ISTA:8350</a>.
  ieee: S. Shamipour, “Bulk actin dynamics drive phase segregation in zebrafish oocytes
    ,” Institute of Science and Technology Austria, 2020.
  ista: Shamipour S. 2020. Bulk actin dynamics drive phase segregation in zebrafish
    oocytes . Institute of Science and Technology Austria.
  mla: Shamipour, Shayan. <i>Bulk Actin Dynamics Drive Phase Segregation in Zebrafish
    Oocytes </i>. Institute of Science and Technology Austria, 2020, doi:<a href="https://doi.org/10.15479/AT:ISTA:8350">10.15479/AT:ISTA:8350</a>.
  short: S. Shamipour, Bulk Actin Dynamics Drive Phase Segregation in Zebrafish Oocytes
    , Institute of Science and Technology Austria, 2020.
date_created: 2020-09-09T11:12:10Z
date_published: 2020-09-09T00:00:00Z
date_updated: 2023-09-27T14:16:45Z
day: '09'
ddc:
- '570'
degree_awarded: PhD
department:
- _id: BjHo
- _id: CaHe
doi: 10.15479/AT:ISTA:8350
file:
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  date_updated: 2021-09-11T22:30:05Z
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  date_created: 2020-09-09T11:06:13Z
  date_updated: 2021-09-11T22:30:05Z
  embargo: 2021-09-10
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  file_size: 23729605
  relation: main_file
file_date_updated: 2021-09-11T22:30:05Z
has_accepted_license: '1'
language:
- iso: eng
month: '09'
oa: 1
oa_version: None
page: '107'
publication_identifier:
  issn:
  - 2663-337X
publication_status: published
publisher: Institute of Science and Technology Austria
related_material:
  record:
  - id: '661'
    relation: part_of_dissertation
    status: public
  - id: '6508'
    relation: part_of_dissertation
    status: public
  - id: '7001'
    relation: part_of_dissertation
    status: public
  - id: '735'
    relation: part_of_dissertation
    status: public
status: public
supervisor:
- first_name: Carl-Philipp J
  full_name: Heisenberg, Carl-Philipp J
  id: 39427864-F248-11E8-B48F-1D18A9856A87
  last_name: Heisenberg
  orcid: 0000-0002-0912-4566
- first_name: Björn
  full_name: Hof, Björn
  id: 3A374330-F248-11E8-B48F-1D18A9856A87
  last_name: Hof
  orcid: 0000-0003-2057-2754
title: 'Bulk actin dynamics drive phase segregation in zebrafish oocytes '
type: dissertation
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
year: '2020'
...
---
_id: '8353'
abstract:
- lang: eng
  text: "Mrp (Multi resistance and pH adaptation) are broadly distributed secondary
    active antiporters that catalyze the transport of monovalent ions such as sodium
    and potassium outside of the cell coupled to the inward translocation of protons.
    Mrp antiporters are unique in a way that they are composed of seven subunits (MrpABCDEFG)
    encoded in a single operon, whereas other antiporters catalyzing the same reaction
    are mostly encoded by a single gene. Mrp exchangers are crucial for intracellular
    pH homeostasis and Na+ efflux, essential mechanisms for H+ uptake under alkaline
    environments and for reduction of the intracellular concentration of toxic cations.
    Mrp displays no homology to any other monovalent Na+(K+)/H+ antiporters but Mrp
    subunits have primary sequence similarity to essential redox-driven proton pumps,
    such as respiratory complex I and membrane-bound hydrogenases. This similarity
    reinforces the hypothesis that these present day redox-driven proton pumps are
    descended from the Mrp antiporter. The Mrp structure serves as a model to understand
    the yet obscure coupling mechanism between ion or electron transfer and proton
    translocation in this large group of proteins. In the thesis, I am presenting
    the purification, biochemical analysis, cryo-EM analysis and molecular structure
    of the Mrp complex from Anoxybacillus flavithermus solved by cryo-EM at 3.0 Å
    resolution. Numerous conditions were screened to purify Mrp to high homogeneity
    and to obtain an appropriate distribution of single particles on cryo-EM grids
    covered with a continuous layer of ultrathin carbon. A preferred particle orientation
    problem was solved by performing a tilted data collection. The activity assays
    showed the specific pH-dependent\r\nprofile of secondary active antiporters. The
    molecular structure shows that Mrp is a dimer of seven-subunit protomers with
    50 trans-membrane helices each. The dimer interface is built by many short and
    tilted transmembrane helices, probably causing a thinning of the bacterial membrane.
    The surface charge distribution shows an extraordinary asymmetry within each monomer,
    revealing presumable proton and sodium translocation pathways. The two largest\r\nand
    homologous Mrp subunits MrpA and MrpD probably translocate one proton each into
    the cell. The sodium ion is likely being translocated in the opposite direction
    within the small subunits along a ladder of charged and conserved residues. Based
    on the structure, we propose a mechanism were the antiport activity is accomplished
    via electrostatic interactions between the charged cations and key charged residues.
    The flexible key TM helices coordinate these\r\nelectrostatic interactions, while
    the membrane thinning between the monomers enables the translocation of sodium
    across the charged membrane. The entire family of redox-driven proton pumps is
    likely to perform their mechanism in a likewise manner."
acknowledged_ssus:
- _id: LifeSc
- _id: EM-Fac
- _id: ScienComp
acknowledgement: "I acknowledge the scientific service units of the IST Austria for
  providing resources by the Life Science Facility, the Electron Microscopy Facility
  and the high-performance computer cluster. Special thanks to the cryo-EM specialists
  Valentin Hodirnau and Daniel Johann Gütl for spending many hours with me in front
  of the microscope and for supporting me to collect the data presented here. I also
  want to thank Professor Masahiro Ito for providing plasmid DNA\r\nencoding Mrp from
  Anoxybacillus flavithermus WK1. I am a recipient of a DOC Fellowship of the Austrian
  Academy of Sciences."
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Julia
  full_name: Steiner, Julia
  id: 3BB67EB0-F248-11E8-B48F-1D18A9856A87
  last_name: Steiner
  orcid: 0000-0003-0493-3775
citation:
  ama: Steiner J. Biochemical and structural investigation of the Mrp antiporter,
    an ancestor of complex I. 2020. doi:<a href="https://doi.org/10.15479/AT:ISTA:8353">10.15479/AT:ISTA:8353</a>
  apa: Steiner, J. (2020). <i>Biochemical and structural investigation of the Mrp
    antiporter, an ancestor of complex I</i>. Institute of Science and Technology
    Austria. <a href="https://doi.org/10.15479/AT:ISTA:8353">https://doi.org/10.15479/AT:ISTA:8353</a>
  chicago: Steiner, Julia. “Biochemical and Structural Investigation of the Mrp Antiporter,
    an Ancestor of Complex I.” Institute of Science and Technology Austria, 2020.
    <a href="https://doi.org/10.15479/AT:ISTA:8353">https://doi.org/10.15479/AT:ISTA:8353</a>.
  ieee: J. Steiner, “Biochemical and structural investigation of the Mrp antiporter,
    an ancestor of complex I,” Institute of Science and Technology Austria, 2020.
  ista: Steiner J. 2020. Biochemical and structural investigation of the Mrp antiporter,
    an ancestor of complex I. Institute of Science and Technology Austria.
  mla: Steiner, Julia. <i>Biochemical and Structural Investigation of the Mrp Antiporter,
    an Ancestor of Complex I</i>. Institute of Science and Technology Austria, 2020,
    doi:<a href="https://doi.org/10.15479/AT:ISTA:8353">10.15479/AT:ISTA:8353</a>.
  short: J. Steiner, Biochemical and Structural Investigation of the Mrp Antiporter,
    an Ancestor of Complex I, Institute of Science and Technology Austria, 2020.
date_created: 2020-09-09T14:27:01Z
date_published: 2020-09-09T00:00:00Z
date_updated: 2023-09-07T13:14:09Z
day: '09'
ddc:
- '572'
degree_awarded: PhD
department:
- _id: LeSa
doi: 10.15479/AT:ISTA:8353
file:
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  date_created: 2020-09-09T14:22:35Z
  date_updated: 2021-09-16T12:40:56Z
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  file_size: 117547589
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  creator: jsteiner
  date_created: 2020-09-09T14:23:25Z
  date_updated: 2020-09-15T08:48:37Z
  file_id: '8355'
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file_date_updated: 2021-09-16T12:40:56Z
has_accepted_license: '1'
language:
- iso: eng
month: '09'
oa: 1
oa_version: None
page: '191'
project:
- _id: 26169496-B435-11E9-9278-68D0E5697425
  grant_number: '24741'
  name: Revealing the functional mechanism of Mrp antiporter, an ancestor of complex
    I
publication_identifier:
  issn:
  - 2663-337X
publication_status: published
publisher: Institute of Science and Technology Austria
related_material:
  record:
  - id: '8284'
    relation: part_of_dissertation
    status: public
status: public
supervisor:
- first_name: Leonid A
  full_name: Sazanov, Leonid A
  id: 338D39FE-F248-11E8-B48F-1D18A9856A87
  last_name: Sazanov
  orcid: 0000-0002-0977-7989
title: Biochemical and structural investigation of the Mrp antiporter, an ancestor
  of complex I
type: dissertation
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
year: '2020'
...
---
_id: '8358'
abstract:
- lang: eng
  text: "During bacterial cell division, the tubulin-homolog FtsZ forms a ring-like
    structure at the center of the cell. This so-called Z-ring acts as a scaffold
    recruiting several division-related proteins to mid-cell and plays a key role
    in distributing proteins at the division site, a feature driven by the treadmilling
    motion of FtsZ filaments around the septum. What regulates the architecture, dynamics
    and stability of the Z-ring is still poorly understood, but FtsZ-associated proteins
    (Zaps) are known to play an important role. \r\nAdvances in fluorescence microscopy
    and in vitro reconstitution experiments have helped to shed light into some of
    the dynamic properties of these complex systems, but methods that allow to collect
    and analyze large quantitative data sets of the underlying polymer dynamics are
    still missing.\r\nHere, using an in vitro reconstitution approach, we studied
    how different Zaps affect FtsZ filament dynamics and organization into large-scale
    patterns, giving special emphasis to the role of the well-conserved protein ZapA.
    For this purpose, we use high-resolution fluorescence microscopy combined with
    novel image analysis workfows to study pattern organization and polymerization
    dynamics of active filaments. We quantified the influence of Zaps on FtsZ on three
    diferent spatial scales: the large-scale organization of the membrane-bound filament
    network, the underlying\r\npolymerization dynamics and the behavior of single
    molecules.\r\nWe found that ZapA cooperatively increases the spatial order of
    the filament network, binds only transiently to FtsZ filaments and has no effect
    on filament length and treadmilling velocity. Our data provides a model for how
    FtsZ-associated proteins can increase the precision and stability of the bacterial
    cell division machinery in a\r\nswitch-like manner, without compromising filament
    dynamics. Furthermore, we believe that our automated quantitative methods can
    be used to analyze a large variety of dynamic cytoskeletal systems, using standard
    time-lapse\r\nmovies of homogeneously labeled proteins obtained from experiments
    in vitro or even inside the living cell.\r\n"
acknowledged_ssus:
- _id: Bio
acknowledgement: I should also express my gratitude to the bioimaging facility at
  IST Austria, for their assistance with the TIRF setup over the years, and especially
  to Christoph Sommer, who gave me a lot of input when I was starting to dive into
  programming.
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Paulo R
  full_name: Dos Santos Caldas, Paulo R
  id: 38FCDB4C-F248-11E8-B48F-1D18A9856A87
  last_name: Dos Santos Caldas
  orcid: 0000-0001-6730-4461
citation:
  ama: Dos Santos Caldas PR. Organization and dynamics of treadmilling filaments in
    cytoskeletal networks of FtsZ and its crosslinkers. 2020. doi:<a href="https://doi.org/10.15479/AT:ISTA:8358">10.15479/AT:ISTA:8358</a>
  apa: Dos Santos Caldas, P. R. (2020). <i>Organization and dynamics of treadmilling
    filaments in cytoskeletal networks of FtsZ and its crosslinkers</i>. Institute
    of Science and Technology Austria. <a href="https://doi.org/10.15479/AT:ISTA:8358">https://doi.org/10.15479/AT:ISTA:8358</a>
  chicago: Dos Santos Caldas, Paulo R. “Organization and Dynamics of Treadmilling
    Filaments in Cytoskeletal Networks of FtsZ and Its Crosslinkers.” Institute of
    Science and Technology Austria, 2020. <a href="https://doi.org/10.15479/AT:ISTA:8358">https://doi.org/10.15479/AT:ISTA:8358</a>.
  ieee: P. R. Dos Santos Caldas, “Organization and dynamics of treadmilling filaments
    in cytoskeletal networks of FtsZ and its crosslinkers,” Institute of Science and
    Technology Austria, 2020.
  ista: Dos Santos Caldas PR. 2020. Organization and dynamics of treadmilling filaments
    in cytoskeletal networks of FtsZ and its crosslinkers. Institute of Science and
    Technology Austria.
  mla: Dos Santos Caldas, Paulo R. <i>Organization and Dynamics of Treadmilling Filaments
    in Cytoskeletal Networks of FtsZ and Its Crosslinkers</i>. Institute of Science
    and Technology Austria, 2020, doi:<a href="https://doi.org/10.15479/AT:ISTA:8358">10.15479/AT:ISTA:8358</a>.
  short: P.R. Dos Santos Caldas, Organization and Dynamics of Treadmilling Filaments
    in Cytoskeletal Networks of FtsZ and Its Crosslinkers, Institute of Science and
    Technology Austria, 2020.
date_created: 2020-09-10T09:26:49Z
date_published: 2020-09-10T00:00:00Z
date_updated: 2023-09-07T13:18:51Z
day: '10'
ddc:
- '572'
degree_awarded: PhD
department:
- _id: MaLo
doi: 10.15479/AT:ISTA:8358
file:
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  checksum: 882f93fe9c351962120e2669b84bf088
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  date_created: 2020-09-10T12:11:29Z
  date_updated: 2020-09-10T12:11:29Z
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  success: 1
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  checksum: 70cc9e399c4e41e6e6ac445ae55e8558
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file_date_updated: 2020-09-11T07:48:10Z
has_accepted_license: '1'
language:
- iso: eng
month: '09'
oa: 1
oa_version: Published Version
page: '135'
publication_identifier:
  isbn:
  - 978-3-99078-009-1
  issn:
  - 2663-337X
publication_status: published
publisher: Institute of Science and Technology Austria
related_material:
  record:
  - id: '7572'
    relation: dissertation_contains
    status: public
  - id: '7197'
    relation: part_of_dissertation
    status: public
status: public
supervisor:
- first_name: Martin
  full_name: Loose, Martin
  id: 462D4284-F248-11E8-B48F-1D18A9856A87
  last_name: Loose
  orcid: 0000-0001-7309-9724
title: Organization and dynamics of treadmilling filaments in cytoskeletal networks
  of FtsZ and its crosslinkers
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: dissertation
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
year: '2020'
...
---
_id: '8361'
abstract:
- lang: eng
  text: With the lithium-ion technology approaching its intrinsic limit with graphite-based
    anodes, Li metal is recently receiving renewed interest from the battery community
    as potential high capacity anode for next-generation rechargeable batteries. In
    this focus paper, we review the main advances in this field since the first attempts
    in the mid-1970s. Strategies for enabling reversible cycling and avoiding dendrite
    growth are thoroughly discussed, including specific applications in all-solid-state
    (inorganic and polymeric), Lithium–Sulfur (Li–S) and Lithium-O2 (air) batteries.
    A particular attention is paid to recent developments of these battery technologies
    and their current state with respect to the 2030 targets of the EU Integrated
    Strategic Energy Technology Plan (SET-Plan) Action 7.
acknowledgement: A.V. and K.T. acknowledge, respectively, the financial support of
  the Helmholtz Association and BMW AG. J.H. acknowledges the collabo-ration project
  “Accordo di Collaborazione Quadro 2015” between Uni-versity of  Ferrara (Department
  of  Chemical and Pharmaceutical Sciences) and Sapienza University of Rome (Department
  of Chemistry). S.D., H.A. and S.K. thank the Fraunhofer Gesellschaft, Technische
  Uni-versit ̈at  Dresden and would like to  acknowledge European Union’s Horizon
  2020 research and innovation programme under grant agree-ment No 814471. S.A.F.
  and C.P. are indebted to the European Research Council (ERC) under the European
  Union’s Horizon 2020 research and innovation program (grant agreement no. 636069)
  and IST Austria.
article_number: '228803'
article_processing_charge: No
article_type: original
author:
- first_name: Alberto
  full_name: Varzi, Alberto
  last_name: Varzi
  orcid: 0000-0001-5069-0589
- first_name: Katharina
  full_name: Thanner, Katharina
  last_name: Thanner
  orcid: 0000-0001-5394-2323
- first_name: Roberto
  full_name: Scipioni, Roberto
  last_name: Scipioni
  orcid: 0000-0003-1926-421X
- first_name: Daniele
  full_name: Di Lecce, Daniele
  last_name: Di Lecce
- first_name: Jusef
  full_name: Hassoun, Jusef
  last_name: Hassoun
- first_name: Susanne
  full_name: Dörfler, Susanne
  last_name: Dörfler
- first_name: Holger
  full_name: Altheus, Holger
  last_name: Altheus
- first_name: Stefan
  full_name: Kaskel, Stefan
  last_name: Kaskel
- first_name: Christian
  full_name: Prehal, Christian
  last_name: Prehal
  orcid: 0000-0003-0654-0940
- first_name: Stefan Alexander
  full_name: Freunberger, Stefan Alexander
  id: A8CA28E6-CE23-11E9-AD2D-EC27E6697425
  last_name: Freunberger
  orcid: 0000-0003-2902-5319
citation:
  ama: Varzi A, Thanner K, Scipioni R, et al. Current status and future perspectives
    of lithium metal batteries. <i>Journal of Power Sources</i>. 2020;480(12). doi:<a
    href="https://doi.org/10.1016/j.jpowsour.2020.228803">10.1016/j.jpowsour.2020.228803</a>
  apa: Varzi, A., Thanner, K., Scipioni, R., Di Lecce, D., Hassoun, J., Dörfler, S.,
    … Freunberger, S. A. (2020). Current status and future perspectives of lithium
    metal batteries. <i>Journal of Power Sources</i>. Elsevier. <a href="https://doi.org/10.1016/j.jpowsour.2020.228803">https://doi.org/10.1016/j.jpowsour.2020.228803</a>
  chicago: Varzi, Alberto, Katharina Thanner, Roberto Scipioni, Daniele Di Lecce,
    Jusef Hassoun, Susanne Dörfler, Holger Altheus, Stefan Kaskel, Christian Prehal,
    and Stefan Alexander Freunberger. “Current Status and Future Perspectives of Lithium
    Metal Batteries.” <i>Journal of Power Sources</i>. Elsevier, 2020. <a href="https://doi.org/10.1016/j.jpowsour.2020.228803">https://doi.org/10.1016/j.jpowsour.2020.228803</a>.
  ieee: A. Varzi <i>et al.</i>, “Current status and future perspectives of lithium
    metal batteries,” <i>Journal of Power Sources</i>, vol. 480, no. 12. Elsevier,
    2020.
  ista: Varzi A, Thanner K, Scipioni R, Di Lecce D, Hassoun J, Dörfler S, Altheus
    H, Kaskel S, Prehal C, Freunberger SA. 2020. Current status and future perspectives
    of lithium metal batteries. Journal of Power Sources. 480(12), 228803.
  mla: Varzi, Alberto, et al. “Current Status and Future Perspectives of Lithium Metal
    Batteries.” <i>Journal of Power Sources</i>, vol. 480, no. 12, 228803, Elsevier,
    2020, doi:<a href="https://doi.org/10.1016/j.jpowsour.2020.228803">10.1016/j.jpowsour.2020.228803</a>.
  short: A. Varzi, K. Thanner, R. Scipioni, D. Di Lecce, J. Hassoun, S. Dörfler, H.
    Altheus, S. Kaskel, C. Prehal, S.A. Freunberger, Journal of Power Sources 480
    (2020).
date_created: 2020-09-10T10:48:40Z
date_published: 2020-12-31T00:00:00Z
date_updated: 2023-08-22T09:20:37Z
day: '31'
department:
- _id: StFr
doi: 10.1016/j.jpowsour.2020.228803
external_id:
  isi:
  - '000593857300001'
intvolume: '       480'
isi: 1
issue: '12'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.1016/j.jpowsour.2020.228803
month: '12'
oa: 1
oa_version: Published Version
publication: Journal of Power Sources
publication_identifier:
  issn:
  - 0378-7753
publication_status: published
publisher: Elsevier
quality_controlled: '1'
related_material:
  record:
  - id: '8067'
    relation: earlier_version
    status: public
status: public
title: Current status and future perspectives of lithium metal batteries
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 480
year: '2020'
...
---
_id: '8366'
abstract:
- lang: eng
  text: "Fabrication of curved shells plays an important role in modern design, industry,
    and science. Among their remarkable properties are, for example, aesthetics of
    organic shapes, ability to evenly distribute loads, or efficient flow separation.
    They find applications across vast length scales ranging from sky-scraper architecture
    to microscopic devices. But, at\r\nthe same time, the design of curved shells
    and their manufacturing process pose a variety of challenges. In this thesis,
    they are addressed from several perspectives. In particular, this thesis presents
    approaches based on the transformation of initially flat sheets into the target
    curved surfaces. This involves problems of interactive design of shells with nontrivial
    mechanical constraints, inverse design of complex structural materials, and data-driven
    modeling of delicate and time-dependent physical properties. At the same time,
    two newly-developed self-morphing mechanisms targeting flat-to-curved transformation
    are presented.\r\nIn architecture, doubly curved surfaces can be realized as cold
    bent glass panelizations. Originally flat glass panels are bent into frames and
    remain stressed. This is a cost-efficient fabrication approach compared to hot
    bending, when glass panels are shaped plastically. However such constructions
    are prone to breaking during bending, and it is highly\r\nnontrivial to navigate
    the design space, keeping the panels fabricable and aesthetically pleasing at
    the same time. We introduce an interactive design system for cold bent glass façades,
    while previously even offline optimization for such scenarios has not been sufficiently
    developed. Our method is based on a deep learning approach providing quick\r\nand
    high precision estimation of glass panel shape and stress while handling the shape\r\nmultimodality.\r\nFabrication
    of smaller objects of scales below 1 m, can also greatly benefit from shaping
    originally flat sheets. In this respect, we designed new self-morphing shell mechanisms
    transforming from an initial flat state to a doubly curved state with high precision
    and detail. Our so-called CurveUps demonstrate the encodement of the geometric
    information\r\ninto the shell. Furthermore, we explored the frontiers of programmable
    materials and showed how temporal information can additionally be encoded into
    a flat shell. This allows prescribing deformation sequences for doubly curved
    surfaces and, thus, facilitates self-collision avoidance enabling complex shapes
    and functionalities otherwise impossible.\r\nBoth of these methods include inverse
    design tools keeping the user in the design loop."
acknowledged_ssus:
- _id: M-Shop
- _id: ScienComp
acknowledgement: "During the work on this thesis, I received substantial support from
  IST Austria’s scientific service units. A big thank you to Todor Asenov and other
  Miba Machine Shop team members for their help with fabrication of experimental prototypes.
  In addition, I would like to thank Scientific Computing team for the support with
  high performance computing.\r\nFinancial support was provided by the European Research
  Council (ERC) under grant agreement No 715767 - MATERIALIZABLE: Intelligent fabrication-oriented
  Computational Design and Modeling, which I gratefully acknowledge."
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Ruslan
  full_name: Guseinov, Ruslan
  id: 3AB45EE2-F248-11E8-B48F-1D18A9856A87
  last_name: Guseinov
  orcid: 0000-0001-9819-5077
citation:
  ama: 'Guseinov R. Computational design of curved thin shells: From glass façades
    to programmable matter. 2020. doi:<a href="https://doi.org/10.15479/AT:ISTA:8366">10.15479/AT:ISTA:8366</a>'
  apa: 'Guseinov, R. (2020). <i>Computational design of curved thin shells: From glass
    façades to programmable matter</i>. Institute of Science and Technology Austria.
    <a href="https://doi.org/10.15479/AT:ISTA:8366">https://doi.org/10.15479/AT:ISTA:8366</a>'
  chicago: 'Guseinov, Ruslan. “Computational Design of Curved Thin Shells: From Glass
    Façades to Programmable Matter.” Institute of Science and Technology Austria,
    2020. <a href="https://doi.org/10.15479/AT:ISTA:8366">https://doi.org/10.15479/AT:ISTA:8366</a>.'
  ieee: 'R. Guseinov, “Computational design of curved thin shells: From glass façades
    to programmable matter,” Institute of Science and Technology Austria, 2020.'
  ista: 'Guseinov R. 2020. Computational design of curved thin shells: From glass
    façades to programmable matter. Institute of Science and Technology Austria.'
  mla: 'Guseinov, Ruslan. <i>Computational Design of Curved Thin Shells: From Glass
    Façades to Programmable Matter</i>. Institute of Science and Technology Austria,
    2020, doi:<a href="https://doi.org/10.15479/AT:ISTA:8366">10.15479/AT:ISTA:8366</a>.'
  short: 'R. Guseinov, Computational Design of Curved Thin Shells: From Glass Façades
    to Programmable Matter, Institute of Science and Technology Austria, 2020.'
date_created: 2020-09-10T16:19:55Z
date_published: 2020-09-21T00:00:00Z
date_updated: 2024-02-21T12:44:29Z
day: '21'
ddc:
- '000'
degree_awarded: PhD
department:
- _id: BeBi
doi: 10.15479/AT:ISTA:8366
ec_funded: 1
file:
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  date_updated: 2020-09-16T15:11:01Z
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  file_name: thesis_source.zip
  file_size: 76207597
  relation: source_file
file_date_updated: 2020-09-16T15:11:01Z
has_accepted_license: '1'
keyword:
- computer-aided design
- shape modeling
- self-morphing
- mechanical engineering
language:
- iso: eng
month: '09'
oa: 1
oa_version: Published Version
page: '118'
project:
- _id: 24F9549A-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '715767'
  name: 'MATERIALIZABLE: Intelligent fabrication-oriented Computational Design and
    Modeling'
publication_identifier:
  isbn:
  - 978-3-99078-010-7
  issn:
  - 2663-337X
publication_status: published
publisher: Institute of Science and Technology Austria
related_material:
  record:
  - id: '7151'
    relation: research_data
    status: deleted
  - id: '7262'
    relation: part_of_dissertation
    status: public
  - id: '8562'
    relation: part_of_dissertation
    status: public
  - id: '1001'
    relation: part_of_dissertation
    status: public
  - id: '8375'
    relation: research_data
    status: public
status: public
supervisor:
- first_name: Bernd
  full_name: Bickel, Bernd
  id: 49876194-F248-11E8-B48F-1D18A9856A87
  last_name: Bickel
  orcid: 0000-0001-6511-9385
title: 'Computational design of curved thin shells: From glass façades to programmable
  matter'
type: dissertation
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
year: '2020'
...
---
_id: '8375'
abstract:
- lang: eng
  text: 'Supplementary movies showing the following sequences for spatio-temporarily
    programmed shells: input geometry and actuation time landscape; comparison of
    morphing processes from a camera recording and a simulation; final actuated shape.'
article_processing_charge: No
author:
- first_name: Ruslan
  full_name: Guseinov, Ruslan
  id: 3AB45EE2-F248-11E8-B48F-1D18A9856A87
  last_name: Guseinov
  orcid: 0000-0001-9819-5077
citation:
  ama: 'Guseinov R. Supplementary data for “Computational design of curved thin shells:
    from glass façades to programmable matter.” 2020. doi:<a href="https://doi.org/10.15479/AT:ISTA:8375">10.15479/AT:ISTA:8375</a>'
  apa: 'Guseinov, R. (2020). Supplementary data for “Computational design of curved
    thin shells: from glass façades to programmable matter.” Institute of Science
    and Technology Austria. <a href="https://doi.org/10.15479/AT:ISTA:8375">https://doi.org/10.15479/AT:ISTA:8375</a>'
  chicago: 'Guseinov, Ruslan. “Supplementary Data for ‘Computational Design of Curved
    Thin Shells: From Glass Façades to Programmable Matter.’” Institute of Science
    and Technology Austria, 2020. <a href="https://doi.org/10.15479/AT:ISTA:8375">https://doi.org/10.15479/AT:ISTA:8375</a>.'
  ieee: 'R. Guseinov, “Supplementary data for ‘Computational design of curved thin
    shells: from glass façades to programmable matter.’” Institute of Science and
    Technology Austria, 2020.'
  ista: 'Guseinov R. 2020. Supplementary data for ‘Computational design of curved
    thin shells: from glass façades to programmable matter’, Institute of Science
    and Technology Austria, <a href="https://doi.org/10.15479/AT:ISTA:8375">10.15479/AT:ISTA:8375</a>.'
  mla: 'Guseinov, Ruslan. <i>Supplementary Data for “Computational Design of Curved
    Thin Shells: From Glass Façades to Programmable Matter.”</i> Institute of Science
    and Technology Austria, 2020, doi:<a href="https://doi.org/10.15479/AT:ISTA:8375">10.15479/AT:ISTA:8375</a>.'
  short: R. Guseinov, (2020).
contributor:
- contributor_type: researcher
  first_name: Ruslan
  id: 3AB45EE2-F248-11E8-B48F-1D18A9856A87
  last_name: Guseinov
  orcid: 0000-0001-9819-5077
- contributor_type: researcher
  first_name: Connor
  last_name: McMahan
- contributor_type: researcher
  first_name: Jesus
  id: 2DC83906-F248-11E8-B48F-1D18A9856A87
  last_name: Perez Rodriguez
- contributor_type: researcher
  first_name: Chiara
  last_name: Daraio
- contributor_type: researcher
  first_name: Bernd
  id: 49876194-F248-11E8-B48F-1D18A9856A87
  last_name: Bickel
  orcid: 0000-0001-6511-9385
date_created: 2020-09-11T09:52:54Z
date_published: 2020-09-21T00:00:00Z
date_updated: 2024-02-21T12:44:29Z
day: '21'
ddc:
- '000'
department:
- _id: BeBi
doi: 10.15479/AT:ISTA:8375
ec_funded: 1
file:
- access_level: open_access
  checksum: 4029ffd65fb82ef2366b2fc2a4908e16
  content_type: video/mp4
  creator: rguseino
  date_created: 2020-09-11T09:45:21Z
  date_updated: 2020-09-11T09:45:21Z
  file_id: '8376'
  file_name: supplementary_movie_1.mp4
  file_size: 29214988
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  content_type: video/mp4
  creator: rguseino
  date_created: 2020-09-11T09:45:25Z
  date_updated: 2020-09-11T09:45:25Z
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  file_size: 28449475
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  content_type: video/mp4
  creator: rguseino
  date_created: 2020-09-11T09:45:28Z
  date_updated: 2020-09-11T09:45:28Z
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  date_created: 2020-09-11T09:45:33Z
  date_updated: 2020-09-11T09:45:33Z
  file_id: '8379'
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  file_size: 25198755
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  success: 1
file_date_updated: 2020-09-11T09:52:36Z
has_accepted_license: '1'
month: '09'
oa: 1
oa_version: Published Version
project:
- _id: 24F9549A-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '715767'
  name: 'MATERIALIZABLE: Intelligent fabrication-oriented Computational Design and
    Modeling'
publisher: Institute of Science and Technology Austria
related_material:
  record:
  - id: '8366'
    relation: used_in_publication
    status: public
status: public
title: 'Supplementary data for "Computational design of curved thin shells: from glass
  façades to programmable matter"'
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: research_data
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2020'
...
---
_id: '8383'
abstract:
- lang: eng
  text: We introduce extension-based proofs, a class of impossibility proofs that
    includes valency arguments. They are modelled as an interaction between a prover
    and a protocol. Using proofs based on combinatorial topology, it has been shown
    that it is impossible to deterministically solve k-set agreement among n > k ≥
    2 processes in a wait-free manner. However, it was unknown whether proofs based
    on simpler techniques were possible. We explain why this impossibility result
    cannot be obtained by an extension-based proof and, hence, extension-based proofs
    are limited in power.
article_processing_charge: No
author:
- first_name: Dan-Adrian
  full_name: Alistarh, Dan-Adrian
  id: 4A899BFC-F248-11E8-B48F-1D18A9856A87
  last_name: Alistarh
  orcid: 0000-0003-3650-940X
- first_name: James
  full_name: Aspnes, James
  last_name: Aspnes
- first_name: Faith
  full_name: Ellen, Faith
  last_name: Ellen
- first_name: Rati
  full_name: Gelashvili, Rati
  last_name: Gelashvili
- first_name: Leqi
  full_name: Zhu, Leqi
  last_name: Zhu
citation:
  ama: 'Alistarh D-A, Aspnes J, Ellen F, Gelashvili R, Zhu L. Brief Announcement:
    Why Extension-Based Proofs Fail. In: <i>Proceedings of the 39th Symposium on Principles
    of Distributed Computing</i>. Association for Computing Machinery; 2020:54-56.
    doi:<a href="https://doi.org/10.1145/3382734.3405743">10.1145/3382734.3405743</a>'
  apa: 'Alistarh, D.-A., Aspnes, J., Ellen, F., Gelashvili, R., &#38; Zhu, L. (2020).
    Brief Announcement: Why Extension-Based Proofs Fail. In <i>Proceedings of the
    39th Symposium on Principles of Distributed Computing</i> (pp. 54–56). Virtual,
    Italy: Association for Computing Machinery. <a href="https://doi.org/10.1145/3382734.3405743">https://doi.org/10.1145/3382734.3405743</a>'
  chicago: 'Alistarh, Dan-Adrian, James Aspnes, Faith Ellen, Rati Gelashvili, and
    Leqi Zhu. “Brief Announcement: Why Extension-Based Proofs Fail.” In <i>Proceedings
    of the 39th Symposium on Principles of Distributed Computing</i>, 54–56. Association
    for Computing Machinery, 2020. <a href="https://doi.org/10.1145/3382734.3405743">https://doi.org/10.1145/3382734.3405743</a>.'
  ieee: 'D.-A. Alistarh, J. Aspnes, F. Ellen, R. Gelashvili, and L. Zhu, “Brief Announcement:
    Why Extension-Based Proofs Fail,” in <i>Proceedings of the 39th Symposium on Principles
    of Distributed Computing</i>, Virtual, Italy, 2020, pp. 54–56.'
  ista: 'Alistarh D-A, Aspnes J, Ellen F, Gelashvili R, Zhu L. 2020. Brief Announcement:
    Why Extension-Based Proofs Fail. Proceedings of the 39th Symposium on Principles
    of Distributed Computing. PODC: Principles of Distributed Computing, 54–56.'
  mla: 'Alistarh, Dan-Adrian, et al. “Brief Announcement: Why Extension-Based Proofs
    Fail.” <i>Proceedings of the 39th Symposium on Principles of Distributed Computing</i>,
    Association for Computing Machinery, 2020, pp. 54–56, doi:<a href="https://doi.org/10.1145/3382734.3405743">10.1145/3382734.3405743</a>.'
  short: D.-A. Alistarh, J. Aspnes, F. Ellen, R. Gelashvili, L. Zhu, in:, Proceedings
    of the 39th Symposium on Principles of Distributed Computing, Association for
    Computing Machinery, 2020, pp. 54–56.
conference:
  end_date: 2020-08-07
  location: Virtual, Italy
  name: 'PODC: Principles of Distributed Computing'
  start_date: 2020-08-03
date_created: 2020-09-13T22:01:18Z
date_published: 2020-07-31T00:00:00Z
date_updated: 2024-02-28T12:54:19Z
day: '31'
department:
- _id: DaAl
doi: 10.1145/3382734.3405743
language:
- iso: eng
month: '07'
oa_version: None
page: 54-56
publication: Proceedings of the 39th Symposium on Principles of Distributed Computing
publication_identifier:
  isbn:
  - '9781450375825'
publication_status: published
publisher: Association for Computing Machinery
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Brief Announcement: Why Extension-Based Proofs Fail'
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2020'
...
---
_id: '8384'
abstract:
- lang: eng
  text: Previous research on animations of soap bubbles, films, and foams largely
    focuses on the motion and geometric shape of the bubble surface. These works neglect
    the evolution of the bubble’s thickness, which is normally responsible for visual
    phenomena like surface vortices, Newton’s interference patterns, capillary waves,
    and deformation-dependent rupturing of films in a foam. In this paper, we model
    these natural phenomena by introducing the film thickness as a reduced degree
    of freedom in the Navier-Stokes equations and deriving their equations of motion.
    We discretize the equations on a nonmanifold triangle mesh surface and couple
    it to an existing bubble solver. In doing so, we also introduce an incompressible
    fluid solver for 2.5D films and a novel advection algorithm for convecting fields
    across non-manifold surface junctions. Our simulations enhance state-of-the-art
    bubble solvers with additional effects caused by convection, rippling, draining,
    and evaporation of the thin film.
acknowledged_ssus:
- _id: ScienComp
acknowledgement: "We wish to thank the anonymous reviewers and the members of the
  Visual Computing Group at IST Austria for their valuable feedback, especially Camille
  Schreck for her help in rendering. This research was supported by the Scientific
  Service Units (SSU) of IST Austria through resources provided by Scientific Computing.
  We would like to thank the authors of [Belcour and Barla 2017] for providing their
  implementation, the authors of [Atkins and Elliott 2010] and [Seychelles et al.
  2008] for allowing us to use their results, and Rok Grah for helpful discussions.
  Finally, we thank Ryoichi Ando for many discussions from the beginning of the project
  that resulted in important contents of the paper including our formulation, numerical
  scheme, and initial implementation. This project has received funding from the\r\nEuropean
  Research Council (ERC) under the European Union’s Horizon 2020 research and innovation
  programme under grant agreement No. 638176."
article_number: '31'
article_processing_charge: No
article_type: original
author:
- first_name: Sadashige
  full_name: Ishida, Sadashige
  id: 6F7C4B96-A8E9-11E9-A7CA-09ECE5697425
  last_name: Ishida
- first_name: Peter
  full_name: Synak, Peter
  id: 331776E2-F248-11E8-B48F-1D18A9856A87
  last_name: Synak
- first_name: Fumiya
  full_name: Narita, Fumiya
  last_name: Narita
- first_name: Toshiya
  full_name: Hachisuka, Toshiya
  last_name: Hachisuka
- first_name: Christopher J
  full_name: Wojtan, Christopher J
  id: 3C61F1D2-F248-11E8-B48F-1D18A9856A87
  last_name: Wojtan
  orcid: 0000-0001-6646-5546
citation:
  ama: Ishida S, Synak P, Narita F, Hachisuka T, Wojtan C. A model for soap film dynamics
    with evolving thickness. <i>ACM Transactions on Graphics</i>. 2020;39(4). doi:<a
    href="https://doi.org/10.1145/3386569.3392405">10.1145/3386569.3392405</a>
  apa: Ishida, S., Synak, P., Narita, F., Hachisuka, T., &#38; Wojtan, C. (2020).
    A model for soap film dynamics with evolving thickness. <i>ACM Transactions on
    Graphics</i>. Association for Computing Machinery. <a href="https://doi.org/10.1145/3386569.3392405">https://doi.org/10.1145/3386569.3392405</a>
  chicago: Ishida, Sadashige, Peter Synak, Fumiya Narita, Toshiya Hachisuka, and Chris
    Wojtan. “A Model for Soap Film Dynamics with Evolving Thickness.” <i>ACM Transactions
    on Graphics</i>. Association for Computing Machinery, 2020. <a href="https://doi.org/10.1145/3386569.3392405">https://doi.org/10.1145/3386569.3392405</a>.
  ieee: S. Ishida, P. Synak, F. Narita, T. Hachisuka, and C. Wojtan, “A model for
    soap film dynamics with evolving thickness,” <i>ACM Transactions on Graphics</i>,
    vol. 39, no. 4. Association for Computing Machinery, 2020.
  ista: Ishida S, Synak P, Narita F, Hachisuka T, Wojtan C. 2020. A model for soap
    film dynamics with evolving thickness. ACM Transactions on Graphics. 39(4), 31.
  mla: Ishida, Sadashige, et al. “A Model for Soap Film Dynamics with Evolving Thickness.”
    <i>ACM Transactions on Graphics</i>, vol. 39, no. 4, 31, Association for Computing
    Machinery, 2020, doi:<a href="https://doi.org/10.1145/3386569.3392405">10.1145/3386569.3392405</a>.
  short: S. Ishida, P. Synak, F. Narita, T. Hachisuka, C. Wojtan, ACM Transactions
    on Graphics 39 (2020).
date_created: 2020-09-13T22:01:18Z
date_published: 2020-07-08T00:00:00Z
date_updated: 2024-02-28T12:57:31Z
day: '08'
ddc:
- '000'
department:
- _id: ChWo
doi: 10.1145/3386569.3392405
ec_funded: 1
external_id:
  isi:
  - '000583700300004'
file:
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  date_created: 2020-11-23T09:03:19Z
  date_updated: 2020-11-23T09:03:19Z
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issue: '4'
language:
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main_file_link:
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  url: https://doi.org/10.1145/3386569.3392405
month: '07'
oa: 1
oa_version: Submitted Version
project:
- _id: 2533E772-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '638176'
  name: Efficient Simulation of Natural Phenomena at Extremely Large Scales
publication: ACM Transactions on Graphics
publication_identifier:
  eissn:
  - '15577368'
  issn:
  - '07300301'
publication_status: published
publisher: Association for Computing Machinery
quality_controlled: '1'
scopus_import: '1'
status: public
title: A model for soap film dynamics with evolving thickness
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 39
year: '2020'
...
---
_id: '8385'
abstract:
- lang: eng
  text: 'We present a method for animating yarn-level cloth effects using a thin-shell
    solver. We accomplish this through numerical homogenization: we first use a large
    number of yarn-level simulations to build a model of the potential energy density
    of the cloth, and then use this energy density function to compute forces in a
    thin shell simulator. We model several yarn-based materials, including both woven
    and knitted fabrics. Our model faithfully reproduces expected effects like the
    stiffness of woven fabrics, and the highly deformable nature and anisotropy of
    knitted fabrics. Our approach does not require any real-world experiments nor
    measurements; because the method is based entirely on simulations, it can generate
    entirely new material models quickly, without the need for testing apparatuses
    or human intervention. We provide data-driven models of several woven and knitted
    fabrics, which can be used for efficient simulation with an off-the-shelf cloth
    solver.'
acknowledged_ssus:
- _id: ScienComp
acknowledgement: "We wish to thank the anonymous reviewers and the members of the
  Visual Computing Group at IST Austria for their valuable feedback. We also thank
  the creators of the Berkeley Garment Library [de Joya et al. 2012] for providing
  garment meshes, [Krishnamurthy and Levoy 1996] and [Turk and Levoy 1994] for the
  armadillo and bunny meshes, the creators of libWetCloth [Fei et al. 2018] for their
  implementation of discrete elastic rod forces, and Tomáš Skřivan for\r\ninspiring
  discussions and help with Mathematica code generation. This research was supported
  by the Scientific Service Units (SSU) of IST Austria through resources provided
  by Scientific Computing. This project has received funding from the European Research
  Council (ERC) under the European Union’s Horizon 2020 research and innovation programme
  under grant agreement No. 638176. Rahul Narain is supported by a Pankaj Gupta Young
  Faculty Fellowship and a gift from Adobe Inc."
article_number: '48'
article_processing_charge: No
article_type: original
author:
- first_name: Georg
  full_name: Sperl, Georg
  id: 4DD40360-F248-11E8-B48F-1D18A9856A87
  last_name: Sperl
- first_name: Rahul
  full_name: Narain, Rahul
  last_name: Narain
- first_name: Christopher J
  full_name: Wojtan, Christopher J
  id: 3C61F1D2-F248-11E8-B48F-1D18A9856A87
  last_name: Wojtan
  orcid: 0000-0001-6646-5546
citation:
  ama: Sperl G, Narain R, Wojtan C. Homogenized yarn-level cloth. <i>ACM Transactions
    on Graphics</i>. 2020;39(4). doi:<a href="https://doi.org/10.1145/3386569.3392412">10.1145/3386569.3392412</a>
  apa: Sperl, G., Narain, R., &#38; Wojtan, C. (2020). Homogenized yarn-level cloth.
    <i>ACM Transactions on Graphics</i>. Association for Computing Machinery. <a href="https://doi.org/10.1145/3386569.3392412">https://doi.org/10.1145/3386569.3392412</a>
  chicago: Sperl, Georg, Rahul Narain, and Chris Wojtan. “Homogenized Yarn-Level Cloth.”
    <i>ACM Transactions on Graphics</i>. Association for Computing Machinery, 2020.
    <a href="https://doi.org/10.1145/3386569.3392412">https://doi.org/10.1145/3386569.3392412</a>.
  ieee: G. Sperl, R. Narain, and C. Wojtan, “Homogenized yarn-level cloth,” <i>ACM
    Transactions on Graphics</i>, vol. 39, no. 4. Association for Computing Machinery,
    2020.
  ista: Sperl G, Narain R, Wojtan C. 2020. Homogenized yarn-level cloth. ACM Transactions
    on Graphics. 39(4), 48.
  mla: Sperl, Georg, et al. “Homogenized Yarn-Level Cloth.” <i>ACM Transactions on
    Graphics</i>, vol. 39, no. 4, 48, Association for Computing Machinery, 2020, doi:<a
    href="https://doi.org/10.1145/3386569.3392412">10.1145/3386569.3392412</a>.
  short: G. Sperl, R. Narain, C. Wojtan, ACM Transactions on Graphics 39 (2020).
date_created: 2020-09-13T22:01:18Z
date_published: 2020-07-08T00:00:00Z
date_updated: 2024-02-28T12:57:47Z
day: '08'
ddc:
- '000'
department:
- _id: ChWo
doi: 10.1145/3386569.3392412
ec_funded: 1
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language:
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main_file_link:
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month: '07'
oa: 1
oa_version: Submitted Version
project:
- _id: 2533E772-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '638176'
  name: Efficient Simulation of Natural Phenomena at Extremely Large Scales
publication: ACM Transactions on Graphics
publication_identifier:
  eissn:
  - '15577368'
  issn:
  - '07300301'
publication_status: published
publisher: Association for Computing Machinery
quality_controlled: '1'
related_material:
  record:
  - id: '12358'
    relation: dissertation_contains
    status: public
scopus_import: '1'
status: public
title: Homogenized yarn-level cloth
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 39
year: '2020'
...
---
_id: '8386'
abstract:
- lang: eng
  text: "Form versus function is a long-standing debate in various design-related
    fields, such as architecture as well as graphic and industrial design. A good
    design that balances form and function often requires considerable human effort
    and collaboration among experts from different professional fields. Computational
    design tools provide a new paradigm for designing functional objects. In computational
    design, form and function are represented as mathematical\r\nquantities, with
    the help of numerical and combinatorial algorithms, they can assist even novice
    users in designing versatile models that exhibit their desired functionality.
    This thesis presents three disparate research studies on the computational design
    of functional objects: The appearance of 3d print—we optimize the volumetric material
    distribution for faithfully replicating colored surface texture in 3d printing;
    the dynamic motion of mechanical structures—\r\nour design system helps the novice
    user to retarget various mechanical templates with different functionality to
    complex 3d shapes; and a more abstract functionality, multistability—our algorithm
    automatically generates models that exhibit multiple stable target poses. For
    each of these cases, our computational design tools not only ensure the functionality
    of the results but also permit the user aesthetic freedom over the form. Moreover,
    fabrication constraints\r\nwere taken into account, which allow for the immediate
    creation of physical realization via 3D printing or laser cutting."
acknowledged_ssus:
- _id: SSU
acknowledgement: The research in this thesis has received funding from the European
  Union’s Horizon 2020 research and innovation programme, under the Marie Skłodowska-Curie
  grant agreement No 642841 (DISTRO) and the European Research Council grant agreement
  No 715767 (MATERIALIZABLE). All the research projects in this thesis were also supported
  by Scientific Service Units (SSUs) at IST Austria.
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Ran
  full_name: Zhang, Ran
  id: 4DDBCEB0-F248-11E8-B48F-1D18A9856A87
  last_name: Zhang
  orcid: 0000-0002-3808-281X
citation:
  ama: Zhang R. Structure-aware computational design and its application to 3D printable
    volume scattering, mechanism, and multistability. 2020. doi:<a href="https://doi.org/10.15479/AT:ISTA:8386">10.15479/AT:ISTA:8386</a>
  apa: Zhang, R. (2020). <i>Structure-aware computational design and its application
    to 3D printable volume scattering, mechanism, and multistability</i>. Institute
    of Science and Technology Austria. <a href="https://doi.org/10.15479/AT:ISTA:8386">https://doi.org/10.15479/AT:ISTA:8386</a>
  chicago: Zhang, Ran. “Structure-Aware Computational Design and Its Application to
    3D Printable Volume Scattering, Mechanism, and Multistability.” Institute of Science
    and Technology Austria, 2020. <a href="https://doi.org/10.15479/AT:ISTA:8386">https://doi.org/10.15479/AT:ISTA:8386</a>.
  ieee: R. Zhang, “Structure-aware computational design and its application to 3D
    printable volume scattering, mechanism, and multistability,” Institute of Science
    and Technology Austria, 2020.
  ista: Zhang R. 2020. Structure-aware computational design and its application to
    3D printable volume scattering, mechanism, and multistability. Institute of Science
    and Technology Austria.
  mla: Zhang, Ran. <i>Structure-Aware Computational Design and Its Application to
    3D Printable Volume Scattering, Mechanism, and Multistability</i>. Institute of
    Science and Technology Austria, 2020, doi:<a href="https://doi.org/10.15479/AT:ISTA:8386">10.15479/AT:ISTA:8386</a>.
  short: R. Zhang, Structure-Aware Computational Design and Its Application to 3D
    Printable Volume Scattering, Mechanism, and Multistability, Institute of Science
    and Technology Austria, 2020.
date_created: 2020-09-14T01:04:53Z
date_published: 2020-09-14T00:00:00Z
date_updated: 2023-09-22T09:49:31Z
day: '14'
ddc:
- '003'
degree_awarded: PhD
department:
- _id: BeBi
doi: 10.15479/AT:ISTA:8386
ec_funded: 1
file:
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  date_created: 2020-09-14T01:02:59Z
  date_updated: 2020-09-14T12:18:43Z
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  file_name: Thesis_Ran.zip
  file_size: 1245800191
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  checksum: 817e20c33be9247f906925517c56a40d
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  date_updated: 2020-09-15T12:51:53Z
  file_id: '8396'
  file_name: PhD_thesis_Ran Zhang_20200915.pdf
  file_size: 161385316
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file_date_updated: 2020-09-15T12:51:53Z
has_accepted_license: '1'
language:
- iso: eng
month: '09'
oa: 1
oa_version: Published Version
page: '148'
project:
- _id: 2508E324-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '642841'
  name: Distributed 3D Object Design
- _id: 24F9549A-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '715767'
  name: 'MATERIALIZABLE: Intelligent fabrication-oriented Computational Design and
    Modeling'
publication_identifier:
  issn:
  - 2663-337X
publication_status: published
publisher: Institute of Science and Technology Austria
related_material:
  record:
  - id: '486'
    relation: part_of_dissertation
    status: public
  - id: '1002'
    relation: part_of_dissertation
    status: public
status: public
supervisor:
- first_name: Bernd
  full_name: Bickel, Bernd
  id: 49876194-F248-11E8-B48F-1D18A9856A87
  last_name: Bickel
  orcid: 0000-0001-6511-9385
title: Structure-aware computational design and its application to 3D printable volume
  scattering, mechanism, and multistability
type: dissertation
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
year: '2020'
...
---
_id: '8390'
abstract:
- lang: eng
  text: "Deep neural networks have established a new standard for data-dependent feature
    extraction pipelines in the Computer Vision literature. Despite their remarkable
    performance in the standard supervised learning scenario, i.e. when models are
    trained with labeled data and tested on samples that follow a similar distribution,
    neural networks have been shown to struggle with more advanced generalization
    abilities, such as transferring knowledge across visually different domains, or
    generalizing to new unseen combinations of known concepts. In this thesis we argue
    that, in contrast to the usual black-box behavior of neural networks, leveraging
    more structured internal representations is a promising direction\r\nfor tackling
    such problems. In particular, we focus on two forms of structure. First, we tackle
    modularity: We show that (i) compositional architectures are a natural tool for
    modeling reasoning tasks, in that they efficiently capture their combinatorial
    nature, which is key for generalizing beyond the compositions seen during training.
    We investigate how to to learn such models, both formally and experimentally,
    for the task of abstract visual reasoning. Then, we show that (ii) in some settings,
    modularity allows us to efficiently break down complex tasks into smaller, easier,
    modules, thereby improving computational efficiency; We study this behavior in
    the context of generative models for colorization, as well as for small objects
    detection. Secondly, we investigate the inherently layered structure of representations
    learned by neural networks, and analyze its role in the context of transfer learning
    and domain adaptation across visually\r\ndissimilar domains. "
acknowledged_ssus:
- _id: CampIT
- _id: ScienComp
acknowledgement: Last but not least, I would like to acknowledge the support of the
  IST IT and scientific computing team for helping provide a great work environment.
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Amélie
  full_name: Royer, Amélie
  id: 3811D890-F248-11E8-B48F-1D18A9856A87
  last_name: Royer
  orcid: 0000-0002-8407-0705
citation:
  ama: Royer A. Leveraging structure in Computer Vision tasks for flexible Deep Learning
    models. 2020. doi:<a href="https://doi.org/10.15479/AT:ISTA:8390">10.15479/AT:ISTA:8390</a>
  apa: Royer, A. (2020). <i>Leveraging structure in Computer Vision tasks for flexible
    Deep Learning models</i>. Institute of Science and Technology Austria. <a href="https://doi.org/10.15479/AT:ISTA:8390">https://doi.org/10.15479/AT:ISTA:8390</a>
  chicago: Royer, Amélie. “Leveraging Structure in Computer Vision Tasks for Flexible
    Deep Learning Models.” Institute of Science and Technology Austria, 2020. <a href="https://doi.org/10.15479/AT:ISTA:8390">https://doi.org/10.15479/AT:ISTA:8390</a>.
  ieee: A. Royer, “Leveraging structure in Computer Vision tasks for flexible Deep
    Learning models,” Institute of Science and Technology Austria, 2020.
  ista: Royer A. 2020. Leveraging structure in Computer Vision tasks for flexible
    Deep Learning models. Institute of Science and Technology Austria.
  mla: Royer, Amélie. <i>Leveraging Structure in Computer Vision Tasks for Flexible
    Deep Learning Models</i>. Institute of Science and Technology Austria, 2020, doi:<a
    href="https://doi.org/10.15479/AT:ISTA:8390">10.15479/AT:ISTA:8390</a>.
  short: A. Royer, Leveraging Structure in Computer Vision Tasks for Flexible Deep
    Learning Models, Institute of Science and Technology Austria, 2020.
date_created: 2020-09-14T13:42:09Z
date_published: 2020-09-14T00:00:00Z
date_updated: 2023-10-16T10:04:02Z
day: '14'
ddc:
- '000'
degree_awarded: PhD
department:
- _id: ChLa
doi: 10.15479/AT:ISTA:8390
file:
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  date_created: 2020-09-14T13:39:14Z
  date_updated: 2020-09-14T13:39:14Z
  file_id: '8391'
  file_name: 2020_Thesis_Royer.pdf
  file_size: 30224591
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  date_updated: 2020-09-14T13:39:17Z
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  file_size: 74227627
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has_accepted_license: '1'
language:
- iso: eng
month: '09'
oa: 1
oa_version: Published Version
page: '197'
publication_identifier:
  isbn:
  - 978-3-99078-007-7
  issn:
  - 2663-337X
publication_status: published
publisher: Institute of Science and Technology Austria
related_material:
  record:
  - id: '7936'
    relation: part_of_dissertation
    status: public
  - id: '7937'
    relation: part_of_dissertation
    status: public
  - id: '8193'
    relation: part_of_dissertation
    status: public
  - id: '8092'
    relation: part_of_dissertation
    status: public
  - id: '911'
    relation: part_of_dissertation
    status: public
status: public
supervisor:
- first_name: Christoph
  full_name: Lampert, Christoph
  id: 40C20FD2-F248-11E8-B48F-1D18A9856A87
  last_name: Lampert
  orcid: 0000-0001-8622-7887
title: Leveraging structure in Computer Vision tasks for flexible Deep Learning models
tmp:
  image: /images/cc_by_nc_sa.png
  legal_code_url: https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode
  name: Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC
    BY-NC-SA 4.0)
  short: CC BY-NC-SA (4.0)
type: dissertation
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
year: '2020'
...
---
_id: '8434'
abstract:
- lang: eng
  text: 'Efficient migration on adhesive surfaces involves the protrusion of lamellipodial
    actin networks and their subsequent stabilization by nascent adhesions. The actin-binding
    protein lamellipodin (Lpd) is thought to play a critical role in lamellipodium
    protrusion, by delivering Ena/VASP proteins onto the growing plus ends of actin
    filaments and by interacting with the WAVE regulatory complex, an activator of
    the Arp2/3 complex, at the leading edge. Using B16-F1 melanoma cell lines, we
    demonstrate that genetic ablation of Lpd compromises protrusion efficiency and
    coincident cell migration without altering essential parameters of lamellipodia,
    including their maximal rate of forward advancement and actin polymerization.
    We also confirmed lamellipodia and migration phenotypes with CRISPR/Cas9-mediated
    Lpd knockout Rat2 fibroblasts, excluding cell type-specific effects. Moreover,
    computer-aided analysis of cell-edge morphodynamics on B16-F1 cell lamellipodia
    revealed that loss of Lpd correlates with reduced temporal protrusion maintenance
    as a prerequisite of nascent adhesion formation. We conclude that Lpd optimizes
    protrusion and nascent adhesion formation by counteracting frequent, chaotic retraction
    and membrane ruffling.This article has an associated First Person interview with
    the first author of the paper. '
acknowledgement: This work was supported in part by Deutsche Forschungsgemeinschaft
  (DFG)[GRK2223/1, RO2414/5-1 (to K.R.), FA350/11-1 (to M.F.) and FA330/11-1 (to J.F.)],as
  well as by intramural funding from the Helmholtz Association (to T.E.B.S. andK.R.).
  G.D. was additionally funded by the Austrian Science Fund (FWF) LiseMeitner Program
  [M-2495]. A.C.H. and M.W. are supported by the Francis CrickInstitute, which receives
  its core funding from Cancer Research UK [FC001209], theMedical Research Council
  [FC001209] and the Wellcome Trust [FC001209]. M.K. issupported by the Biotechnology
  and Biological Sciences Research Council [BB/F011431/1, BB/J000590/1, BB/N000226/1].
  Deposited in PMC for release after 6months.
article_number: jcs239020
article_processing_charge: No
article_type: original
author:
- first_name: Georgi A
  full_name: Dimchev, Georgi A
  id: 38C393BE-F248-11E8-B48F-1D18A9856A87
  last_name: Dimchev
  orcid: 0000-0001-8370-6161
- first_name: Behnam
  full_name: Amiri, Behnam
  last_name: Amiri
- first_name: Ashley C.
  full_name: Humphries, Ashley C.
  last_name: Humphries
- first_name: Matthias
  full_name: Schaks, Matthias
  last_name: Schaks
- first_name: Vanessa
  full_name: Dimchev, Vanessa
  last_name: Dimchev
- first_name: Theresia E. B.
  full_name: Stradal, Theresia E. B.
  last_name: Stradal
- first_name: Jan
  full_name: Faix, Jan
  last_name: Faix
- first_name: Matthias
  full_name: Krause, Matthias
  last_name: Krause
- first_name: Michael
  full_name: Way, Michael
  last_name: Way
- first_name: Martin
  full_name: Falcke, Martin
  last_name: Falcke
- first_name: Klemens
  full_name: Rottner, Klemens
  last_name: Rottner
citation:
  ama: Dimchev GA, Amiri B, Humphries AC, et al. Lamellipodin tunes cell migration
    by stabilizing protrusions and promoting adhesion formation. <i>Journal of Cell
    Science</i>. 2020;133(7). doi:<a href="https://doi.org/10.1242/jcs.239020">10.1242/jcs.239020</a>
  apa: Dimchev, G. A., Amiri, B., Humphries, A. C., Schaks, M., Dimchev, V., Stradal,
    T. E. B., … Rottner, K. (2020). Lamellipodin tunes cell migration by stabilizing
    protrusions and promoting adhesion formation. <i>Journal of Cell Science</i>.
    The Company of Biologists. <a href="https://doi.org/10.1242/jcs.239020">https://doi.org/10.1242/jcs.239020</a>
  chicago: Dimchev, Georgi A, Behnam Amiri, Ashley C. Humphries, Matthias Schaks,
    Vanessa Dimchev, Theresia E. B. Stradal, Jan Faix, et al. “Lamellipodin Tunes
    Cell Migration by Stabilizing Protrusions and Promoting Adhesion Formation.” <i>Journal
    of Cell Science</i>. The Company of Biologists, 2020. <a href="https://doi.org/10.1242/jcs.239020">https://doi.org/10.1242/jcs.239020</a>.
  ieee: G. A. Dimchev <i>et al.</i>, “Lamellipodin tunes cell migration by stabilizing
    protrusions and promoting adhesion formation,” <i>Journal of Cell Science</i>,
    vol. 133, no. 7. The Company of Biologists, 2020.
  ista: Dimchev GA, Amiri B, Humphries AC, Schaks M, Dimchev V, Stradal TEB, Faix
    J, Krause M, Way M, Falcke M, Rottner K. 2020. Lamellipodin tunes cell migration
    by stabilizing protrusions and promoting adhesion formation. Journal of Cell Science.
    133(7), jcs239020.
  mla: Dimchev, Georgi A., et al. “Lamellipodin Tunes Cell Migration by Stabilizing
    Protrusions and Promoting Adhesion Formation.” <i>Journal of Cell Science</i>,
    vol. 133, no. 7, jcs239020, The Company of Biologists, 2020, doi:<a href="https://doi.org/10.1242/jcs.239020">10.1242/jcs.239020</a>.
  short: G.A. Dimchev, B. Amiri, A.C. Humphries, M. Schaks, V. Dimchev, T.E.B. Stradal,
    J. Faix, M. Krause, M. Way, M. Falcke, K. Rottner, Journal of Cell Science 133
    (2020).
date_created: 2020-09-17T14:00:33Z
date_published: 2020-04-09T00:00:00Z
date_updated: 2023-09-05T15:41:48Z
day: '09'
ddc:
- '570'
department:
- _id: FlSc
doi: 10.1242/jcs.239020
external_id:
  isi:
  - '000534387800005'
  pmid:
  - ' 32094266'
file:
- access_level: open_access
  checksum: ba917e551acc4ece2884b751434df9ae
  content_type: application/pdf
  creator: dernst
  date_created: 2020-09-17T14:07:51Z
  date_updated: 2020-10-11T22:30:02Z
  embargo: 2020-10-10
  file_id: '8435'
  file_name: 2020_JournalCellScience_Dimchev.pdf
  file_size: 13493302
  relation: main_file
file_date_updated: 2020-10-11T22:30:02Z
has_accepted_license: '1'
intvolume: '       133'
isi: 1
issue: '7'
keyword:
- Cell Biology
language:
- iso: eng
month: '04'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 2674F658-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: M02495
  name: Protein structure and function in filopodia across scales
publication: Journal of Cell Science
publication_identifier:
  eissn:
  - 1477-9137
  issn:
  - 0021-9533
publication_status: published
publisher: The Company of Biologists
quality_controlled: '1'
status: public
title: Lamellipodin tunes cell migration by stabilizing protrusions and promoting
  adhesion formation
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 133
year: '2020'
...
---
_id: '8529'
abstract:
- lang: eng
  text: Practical quantum networks require low-loss and noise-resilient optical interconnects
    as well as non-Gaussian resources for entanglement distillation and distributed
    quantum computation. The latter could be provided by superconducting circuits
    but existing solutions to interface the microwave and optical domains lack either
    scalability or efficiency, and in most cases the conversion noise is not known.
    In this work we utilize the unique opportunities of silicon photonics, cavity
    optomechanics and superconducting circuits to demonstrate a fully integrated,
    coherent transducer interfacing the microwave X and the telecom S bands with a
    total (internal) bidirectional transduction efficiency of 1.2% (135%) at millikelvin
    temperatures. The coupling relies solely on the radiation pressure interaction
    mediated by the femtometer-scale motion of two silicon nanobeams reaching a <jats:italic>V</jats:italic><jats:sub><jats:italic>π</jats:italic></jats:sub>
    as low as 16 μV for sub-nanowatt pump powers. Without the associated optomechanical
    gain, we achieve a total (internal) pure conversion efficiency of up to 0.019%
    (1.6%), relevant for future noise-free operation on this qubit-compatible platform.
acknowledged_ssus:
- _id: NanoFab
acknowledgement: We thank Yuan Chen for performing supplementary FEM simulations and
  Andrew Higginbotham, Ralf Riedinger, Sungkun Hong, and Lorenzo Magrini for valuable
  discussions. This work was supported by IST Austria, the IST nanofabrication facility
  (NFF), the European Union’s Horizon 2020 research and innovation program under grant
  agreement no. 732894 (FET Proactive HOT) and the European Research Council under
  grant agreement no. 758053 (ERC StG QUNNECT). G.A. is the recipient of a DOC fellowship
  of the Austrian Academy of Sciences at IST Austria. W.H. is the recipient of an
  ISTplus postdoctoral fellowship with funding from the European Union’s Horizon 2020
  research and innovation program under the Marie Sklodowska-Curie grant agreement
  no. 754411. J.M.F. acknowledges support from the Austrian Science Fund (FWF) through
  BeyondC (F71), a NOMIS foundation research grant, and the EU’s Horizon 2020 research
  and innovation program under grant agreement no. 862644 (FET Open QUARTET).
article_number: '4460'
article_processing_charge: No
article_type: original
author:
- first_name: Georg M
  full_name: Arnold, Georg M
  id: 3770C838-F248-11E8-B48F-1D18A9856A87
  last_name: Arnold
  orcid: 0000-0003-1397-7876
- first_name: Matthias
  full_name: Wulf, Matthias
  id: 45598606-F248-11E8-B48F-1D18A9856A87
  last_name: Wulf
  orcid: 0000-0001-6613-1378
- first_name: Shabir
  full_name: Barzanjeh, Shabir
  id: 2D25E1F6-F248-11E8-B48F-1D18A9856A87
  last_name: Barzanjeh
  orcid: 0000-0003-0415-1423
- first_name: Elena
  full_name: Redchenko, Elena
  id: 2C21D6E8-F248-11E8-B48F-1D18A9856A87
  last_name: Redchenko
- first_name: Alfredo R
  full_name: Rueda Sanchez, Alfredo R
  id: 3B82B0F8-F248-11E8-B48F-1D18A9856A87
  last_name: Rueda Sanchez
  orcid: 0000-0001-6249-5860
- first_name: William J
  full_name: Hease, William J
  id: 29705398-F248-11E8-B48F-1D18A9856A87
  last_name: Hease
  orcid: 0000-0001-9868-2166
- first_name: Farid
  full_name: Hassani, Farid
  id: 2AED110C-F248-11E8-B48F-1D18A9856A87
  last_name: Hassani
  orcid: 0000-0001-6937-5773
- first_name: Johannes M
  full_name: Fink, Johannes M
  id: 4B591CBA-F248-11E8-B48F-1D18A9856A87
  last_name: Fink
  orcid: 0000-0001-8112-028X
citation:
  ama: Arnold GM, Wulf M, Barzanjeh S, et al. Converting microwave and telecom photons
    with a silicon photonic nanomechanical interface. <i>Nature Communications</i>.
    2020;11. doi:<a href="https://doi.org/10.1038/s41467-020-18269-z">10.1038/s41467-020-18269-z</a>
  apa: Arnold, G. M., Wulf, M., Barzanjeh, S., Redchenko, E., Rueda Sanchez, A. R.,
    Hease, W. J., … Fink, J. M. (2020). Converting microwave and telecom photons with
    a silicon photonic nanomechanical interface. <i>Nature Communications</i>. Springer
    Nature. <a href="https://doi.org/10.1038/s41467-020-18269-z">https://doi.org/10.1038/s41467-020-18269-z</a>
  chicago: Arnold, Georg M, Matthias Wulf, Shabir Barzanjeh, Elena Redchenko, Alfredo
    R Rueda Sanchez, William J Hease, Farid Hassani, and Johannes M Fink. “Converting
    Microwave and Telecom Photons with a Silicon Photonic Nanomechanical Interface.”
    <i>Nature Communications</i>. Springer Nature, 2020. <a href="https://doi.org/10.1038/s41467-020-18269-z">https://doi.org/10.1038/s41467-020-18269-z</a>.
  ieee: G. M. Arnold <i>et al.</i>, “Converting microwave and telecom photons with
    a silicon photonic nanomechanical interface,” <i>Nature Communications</i>, vol.
    11. Springer Nature, 2020.
  ista: Arnold GM, Wulf M, Barzanjeh S, Redchenko E, Rueda Sanchez AR, Hease WJ, Hassani
    F, Fink JM. 2020. Converting microwave and telecom photons with a silicon photonic
    nanomechanical interface. Nature Communications. 11, 4460.
  mla: Arnold, Georg M., et al. “Converting Microwave and Telecom Photons with a Silicon
    Photonic Nanomechanical Interface.” <i>Nature Communications</i>, vol. 11, 4460,
    Springer Nature, 2020, doi:<a href="https://doi.org/10.1038/s41467-020-18269-z">10.1038/s41467-020-18269-z</a>.
  short: G.M. Arnold, M. Wulf, S. Barzanjeh, E. Redchenko, A.R. Rueda Sanchez, W.J.
    Hease, F. Hassani, J.M. Fink, Nature Communications 11 (2020).
date_created: 2020-09-18T10:56:20Z
date_published: 2020-09-08T00:00:00Z
date_updated: 2024-08-07T07:11:51Z
day: '08'
ddc:
- '530'
department:
- _id: JoFi
doi: 10.1038/s41467-020-18269-z
ec_funded: 1
external_id:
  isi:
  - '000577280200001'
file:
- access_level: open_access
  checksum: 88f92544889eb18bb38e25629a422a86
  content_type: application/pdf
  creator: dernst
  date_created: 2020-09-18T13:02:37Z
  date_updated: 2020-09-18T13:02:37Z
  file_id: '8530'
  file_name: 2020_NatureComm_Arnold.pdf
  file_size: 1002818
  relation: main_file
  success: 1
file_date_updated: 2020-09-18T13:02:37Z
has_accepted_license: '1'
intvolume: '        11'
isi: 1
keyword:
- General Biochemistry
- Genetics and Molecular Biology
- General Physics and Astronomy
- General Chemistry
language:
- iso: eng
month: '09'
oa: 1
oa_version: Published Version
project:
- _id: 257EB838-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '732894'
  name: Hybrid Optomechanical Technologies
- _id: 26336814-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '758053'
  name: A Fiber Optic Transceiver for Superconducting Qubits
- _id: 260C2330-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '754411'
  name: ISTplus - Postdoctoral Fellowships
- _id: 237CBA6C-32DE-11EA-91FC-C7463DDC885E
  call_identifier: H2020
  grant_number: '862644'
  name: Quantum readout techniques and technologies
- _id: 2671EB66-B435-11E9-9278-68D0E5697425
  name: Coherent on-chip conversion of superconducting qubit signals from microwaves
    to optical frequencies
publication: Nature Communications
publication_identifier:
  issn:
  - 2041-1723
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
related_material:
  link:
  - relation: erratum
    url: https://doi.org/10.1038/s41467-020-18912-9
  - description: News on IST Homepage
    relation: press_release
    url: https://ist.ac.at/en/news/how-to-transport-microwave-quantum-information-via-optical-fiber/
  record:
  - id: '13056'
    relation: research_data
    status: public
status: public
title: Converting microwave and telecom photons with a silicon photonic nanomechanical
  interface
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 11
year: '2020'
...
---
_id: '8532'
abstract:
- lang: eng
  text: The molecular anatomy of synapses defines their characteristics in transmission
    and plasticity. Precise measurements of the number and distribution of synaptic
    proteins are important for our understanding of synapse heterogeneity within and
    between brain regions. Freeze–fracture replica immunogold electron microscopy
    enables us to analyze them quantitatively on a two-dimensional membrane surface.
    Here, we introduce Darea software, which utilizes deep learning for analysis of
    replica images and demonstrate its usefulness for quick measurements of the pre-
    and postsynaptic areas, density and distribution of gold particles at synapses
    in a reproducible manner. We used Darea for comparing glutamate receptor and calcium
    channel distributions between hippocampal CA3-CA1 spine synapses on apical and
    basal dendrites, which differ in signaling pathways involved in synaptic plasticity.
    We found that apical synapses express a higher density of α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic
    acid (AMPA) receptors and a stronger increase of AMPA receptors with synaptic
    size, while basal synapses show a larger increase in N-methyl-D-aspartate (NMDA)
    receptors with size. Interestingly, AMPA and NMDA receptors are segregated within
    postsynaptic sites and negatively correlated in density among both apical and
    basal synapses. In the presynaptic sites, Cav2.1 voltage-gated calcium channels
    show similar densities in apical and basal synapses with distributions consistent
    with an exclusion zone model of calcium channel-release site topography.
acknowledgement: "This research was funded by Austrian Academy of Sciences, DOC fellowship
  to D.K., European Research\r\nCouncil Advanced Grant 694539 and European Union Human
  Brain Project (HBP) SGA2 785907 to R.S.\r\nWe acknowledge Elena Hollergschwandtner
  for technical support."
article_number: '6737'
article_processing_charge: No
article_type: original
author:
- first_name: David
  full_name: Kleindienst, David
  id: 42E121A4-F248-11E8-B48F-1D18A9856A87
  last_name: Kleindienst
- first_name: Jacqueline-Claire
  full_name: Montanaro-Punzengruber, Jacqueline-Claire
  id: 3786AB44-F248-11E8-B48F-1D18A9856A87
  last_name: Montanaro-Punzengruber
- first_name: Pradeep
  full_name: Bhandari, Pradeep
  id: 45EDD1BC-F248-11E8-B48F-1D18A9856A87
  last_name: Bhandari
  orcid: 0000-0003-0863-4481
- first_name: Matthew J
  full_name: Case, Matthew J
  id: 44B7CA5A-F248-11E8-B48F-1D18A9856A87
  last_name: Case
- first_name: Yugo
  full_name: Fukazawa, Yugo
  last_name: Fukazawa
- first_name: Ryuichi
  full_name: Shigemoto, Ryuichi
  id: 499F3ABC-F248-11E8-B48F-1D18A9856A87
  last_name: Shigemoto
  orcid: 0000-0001-8761-9444
citation:
  ama: Kleindienst D, Montanaro-Punzengruber J-C, Bhandari P, Case MJ, Fukazawa Y,
    Shigemoto R. Deep learning-assisted high-throughput analysis of freeze-fracture
    replica images applied to glutamate receptors and calcium channels at hippocampal
    synapses. <i>International Journal of Molecular Sciences</i>. 2020;21(18). doi:<a
    href="https://doi.org/10.3390/ijms21186737">10.3390/ijms21186737</a>
  apa: Kleindienst, D., Montanaro-Punzengruber, J.-C., Bhandari, P., Case, M. J.,
    Fukazawa, Y., &#38; Shigemoto, R. (2020). Deep learning-assisted high-throughput
    analysis of freeze-fracture replica images applied to glutamate receptors and
    calcium channels at hippocampal synapses. <i>International Journal of Molecular
    Sciences</i>. MDPI. <a href="https://doi.org/10.3390/ijms21186737">https://doi.org/10.3390/ijms21186737</a>
  chicago: Kleindienst, David, Jacqueline-Claire Montanaro-Punzengruber, Pradeep Bhandari,
    Matthew J Case, Yugo Fukazawa, and Ryuichi Shigemoto. “Deep Learning-Assisted
    High-Throughput Analysis of Freeze-Fracture Replica Images Applied to Glutamate
    Receptors and Calcium Channels at Hippocampal Synapses.” <i>International Journal
    of Molecular Sciences</i>. MDPI, 2020. <a href="https://doi.org/10.3390/ijms21186737">https://doi.org/10.3390/ijms21186737</a>.
  ieee: D. Kleindienst, J.-C. Montanaro-Punzengruber, P. Bhandari, M. J. Case, Y.
    Fukazawa, and R. Shigemoto, “Deep learning-assisted high-throughput analysis of
    freeze-fracture replica images applied to glutamate receptors and calcium channels
    at hippocampal synapses,” <i>International Journal of Molecular Sciences</i>,
    vol. 21, no. 18. MDPI, 2020.
  ista: Kleindienst D, Montanaro-Punzengruber J-C, Bhandari P, Case MJ, Fukazawa Y,
    Shigemoto R. 2020. Deep learning-assisted high-throughput analysis of freeze-fracture
    replica images applied to glutamate receptors and calcium channels at hippocampal
    synapses. International Journal of Molecular Sciences. 21(18), 6737.
  mla: Kleindienst, David, et al. “Deep Learning-Assisted High-Throughput Analysis
    of Freeze-Fracture Replica Images Applied to Glutamate Receptors and Calcium Channels
    at Hippocampal Synapses.” <i>International Journal of Molecular Sciences</i>,
    vol. 21, no. 18, 6737, MDPI, 2020, doi:<a href="https://doi.org/10.3390/ijms21186737">10.3390/ijms21186737</a>.
  short: D. Kleindienst, J.-C. Montanaro-Punzengruber, P. Bhandari, M.J. Case, Y.
    Fukazawa, R. Shigemoto, International Journal of Molecular Sciences 21 (2020).
date_created: 2020-09-20T22:01:35Z
date_published: 2020-09-14T00:00:00Z
date_updated: 2024-03-25T23:30:16Z
day: '14'
ddc:
- '570'
department:
- _id: RySh
doi: 10.3390/ijms21186737
ec_funded: 1
external_id:
  isi:
  - '000579945300001'
file:
- access_level: open_access
  checksum: 2e4f62f3cfe945b7391fc3070e5a289f
  content_type: application/pdf
  creator: dernst
  date_created: 2020-09-21T14:08:58Z
  date_updated: 2020-09-21T14:08:58Z
  file_id: '8551'
  file_name: 2020_JournMolecSciences_Kleindienst.pdf
  file_size: 5748456
  relation: main_file
  success: 1
file_date_updated: 2020-09-21T14:08:58Z
has_accepted_license: '1'
intvolume: '        21'
isi: 1
issue: '18'
language:
- iso: eng
month: '09'
oa: 1
oa_version: Published Version
project:
- _id: 25CA28EA-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '694539'
  name: 'In situ analysis of single channel subunit composition in neurons: physiological
    implication in synaptic plasticity and behaviour'
- _id: 25D32BC0-B435-11E9-9278-68D0E5697425
  name: Mechanism of formation and maintenance of input side-dependent asymmetry in
    the hippocampus
- _id: 26436750-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '785907'
  name: Human Brain Project Specific Grant Agreement 2 (HBP SGA 2)
publication: International Journal of Molecular Sciences
publication_identifier:
  eissn:
  - '14220067'
  issn:
  - '16616596'
publication_status: published
publisher: MDPI
quality_controlled: '1'
related_material:
  record:
  - id: '9562'
    relation: dissertation_contains
    status: public
scopus_import: '1'
status: public
title: Deep learning-assisted high-throughput analysis of freeze-fracture replica
  images applied to glutamate receptors and calcium channels at hippocampal synapses
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 21
year: '2020'
...
---
_id: '8533'
abstract:
- lang: eng
  text: Game of Life is a simple and elegant model to study dynamical system over
    networks. The model consists of a graph where every vertex has one of two types,
    namely, dead or alive. A configuration is a mapping of the vertices to the types.
    An update rule describes how the type of a vertex is updated given the types of
    its neighbors. In every round, all vertices are updated synchronously, which leads
    to a configuration update. While in general, Game of Life allows a broad range
    of update rules, we focus on two simple families of update rules, namely, underpopulation
    and overpopulation, that model several interesting dynamics studied in the literature.
    In both settings, a dead vertex requires at least a desired number of live neighbors
    to become alive. For underpopulation (resp., overpopulation), a live vertex requires
    at least (resp. at most) a desired number of live neighbors to remain alive. We
    study the basic computation problems, e.g., configuration reachability, for these
    two families of rules. For underpopulation rules, we show that these problems
    can be solved in polynomial time, whereas for overpopulation rules they are PSPACE-complete.
acknowledgement: "Krishnendu Chatterjee: The research was partially supported by the
  Vienna Science and\r\nTechnology Fund (WWTF) Project ICT15-003.\r\nIsmaël Jecker:
  This project has received funding from the European Union’s Horizon 2020 research\r\nand
  innovation programme under the Marie Skłodowska-Curie Grant Agreement No. 754411."
alternative_title:
- LIPIcs
article_number: 22:1-22:13
article_processing_charge: No
arxiv: 1
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Rasmus
  full_name: Ibsen-Jensen, Rasmus
  id: 3B699956-F248-11E8-B48F-1D18A9856A87
  last_name: Ibsen-Jensen
  orcid: 0000-0003-4783-0389
- first_name: Ismael R
  full_name: Jecker, Ismael R
  id: 85D7C63E-7D5D-11E9-9C0F-98C4E5697425
  last_name: Jecker
- first_name: Jakub
  full_name: Svoboda, Jakub
  id: 130759D2-D7DD-11E9-87D2-DE0DE6697425
  last_name: Svoboda
  orcid: 0000-0002-1419-3267
citation:
  ama: 'Chatterjee K, Ibsen-Jensen R, Jecker IR, Svoboda J. Simplified game of life:
    Algorithms and complexity. In: <i>45th International Symposium on Mathematical
    Foundations of Computer Science</i>. Vol 170. Schloss Dagstuhl - Leibniz-Zentrum
    für Informatik; 2020. doi:<a href="https://doi.org/10.4230/LIPIcs.MFCS.2020.22">10.4230/LIPIcs.MFCS.2020.22</a>'
  apa: 'Chatterjee, K., Ibsen-Jensen, R., Jecker, I. R., &#38; Svoboda, J. (2020).
    Simplified game of life: Algorithms and complexity. In <i>45th International Symposium
    on Mathematical Foundations of Computer Science</i> (Vol. 170). Prague, Czech
    Republic: Schloss Dagstuhl - Leibniz-Zentrum für Informatik. <a href="https://doi.org/10.4230/LIPIcs.MFCS.2020.22">https://doi.org/10.4230/LIPIcs.MFCS.2020.22</a>'
  chicago: 'Chatterjee, Krishnendu, Rasmus Ibsen-Jensen, Ismael R Jecker, and Jakub
    Svoboda. “Simplified Game of Life: Algorithms and Complexity.” In <i>45th International
    Symposium on Mathematical Foundations of Computer Science</i>, Vol. 170. Schloss
    Dagstuhl - Leibniz-Zentrum für Informatik, 2020. <a href="https://doi.org/10.4230/LIPIcs.MFCS.2020.22">https://doi.org/10.4230/LIPIcs.MFCS.2020.22</a>.'
  ieee: 'K. Chatterjee, R. Ibsen-Jensen, I. R. Jecker, and J. Svoboda, “Simplified
    game of life: Algorithms and complexity,” in <i>45th International Symposium on
    Mathematical Foundations of Computer Science</i>, Prague, Czech Republic, 2020,
    vol. 170.'
  ista: 'Chatterjee K, Ibsen-Jensen R, Jecker IR, Svoboda J. 2020. Simplified game
    of life: Algorithms and complexity. 45th International Symposium on Mathematical
    Foundations of Computer Science. MFCS: Symposium on Mathematical Foundations of
    Computer Science, LIPIcs, vol. 170, 22:1-22:13.'
  mla: 'Chatterjee, Krishnendu, et al. “Simplified Game of Life: Algorithms and Complexity.”
    <i>45th International Symposium on Mathematical Foundations of Computer Science</i>,
    vol. 170, 22:1-22:13, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2020,
    doi:<a href="https://doi.org/10.4230/LIPIcs.MFCS.2020.22">10.4230/LIPIcs.MFCS.2020.22</a>.'
  short: K. Chatterjee, R. Ibsen-Jensen, I.R. Jecker, J. Svoboda, in:, 45th International
    Symposium on Mathematical Foundations of Computer Science, Schloss Dagstuhl -
    Leibniz-Zentrum für Informatik, 2020.
conference:
  end_date: 2020-08-28
  location: Prague, Czech Republic
  name: 'MFCS: Symposium on Mathematical Foundations of Computer Science'
  start_date: 2020-08-24
date_created: 2020-09-20T22:01:36Z
date_published: 2020-08-18T00:00:00Z
date_updated: 2025-06-02T08:53:42Z
day: '18'
ddc:
- '000'
department:
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doi: 10.4230/LIPIcs.MFCS.2020.22
ec_funded: 1
external_id:
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  - '2007.02894'
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project:
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  grant_number: ICT15-003
  name: Efficient Algorithms for Computer Aided Verification
- _id: 260C2330-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '754411'
  name: ISTplus - Postdoctoral Fellowships
publication: 45th International Symposium on Mathematical Foundations of Computer
  Science
publication_identifier:
  isbn:
  - '9783959771597'
  issn:
  - '18688969'
publication_status: published
publisher: Schloss Dagstuhl - Leibniz-Zentrum für Informatik
quality_controlled: '1'
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status: public
title: 'Simplified game of life: Algorithms and complexity'
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---
_id: '8534'
abstract:
- lang: eng
  text: A regular language L of finite words is composite if there are regular languages
    L₁,L₂,…,L_t such that L = ⋂_{i = 1}^t L_i and the index (number of states in a
    minimal DFA) of every language L_i is strictly smaller than the index of L. Otherwise,
    L is prime. Primality of regular languages was introduced and studied in [O. Kupferman
    and J. Mosheiff, 2015], where the complexity of deciding the primality of the
    language of a given DFA was left open, with a doubly-exponential gap between the
    upper and lower bounds. We study primality for unary regular languages, namely
    regular languages with a singleton alphabet. A unary language corresponds to a
    subset of ℕ, making the study of unary prime languages closer to that of primality
    in number theory. We show that the setting of languages is richer. In particular,
    while every composite number is the product of two smaller numbers, the number
    t of languages necessary to decompose a composite unary language induces a strict
    hierarchy. In addition, a primality witness for a unary language L, namely a word
    that is not in L but is in all products of languages that contain L and have an
    index smaller than L’s, may be of exponential length. Still, we are able to characterize
    compositionality by structural properties of a DFA for L, leading to a LogSpace
    algorithm for primality checking of unary DFAs.
acknowledgement: "Ismaël Jecker: This project has received funding from the European
  Union’s Horizon\r\n2020 research and innovation programme under the Marie Skłodowska-Curie
  Grant Agreement No.\r\n754411. Nicolas Mazzocchi: PhD fellowship FRIA from the F.R.S.-FNRS."
alternative_title:
- LIPIcs
article_number: 51:1-51:12
article_processing_charge: No
author:
- first_name: Ismael R
  full_name: Jecker, Ismael R
  id: 85D7C63E-7D5D-11E9-9C0F-98C4E5697425
  last_name: Jecker
- first_name: Orna
  full_name: Kupferman, Orna
  last_name: Kupferman
- first_name: Nicolas
  full_name: Mazzocchi, Nicolas
  last_name: Mazzocchi
citation:
  ama: 'Jecker IR, Kupferman O, Mazzocchi N. Unary prime languages. In: <i>45th International
    Symposium on Mathematical Foundations of Computer Science</i>. Vol 170. Schloss
    Dagstuhl - Leibniz-Zentrum für Informatik; 2020. doi:<a href="https://doi.org/10.4230/LIPIcs.MFCS.2020.51">10.4230/LIPIcs.MFCS.2020.51</a>'
  apa: 'Jecker, I. R., Kupferman, O., &#38; Mazzocchi, N. (2020). Unary prime languages.
    In <i>45th International Symposium on Mathematical Foundations of Computer Science</i>
    (Vol. 170). Prague, Czech Republic: Schloss Dagstuhl - Leibniz-Zentrum für Informatik.
    <a href="https://doi.org/10.4230/LIPIcs.MFCS.2020.51">https://doi.org/10.4230/LIPIcs.MFCS.2020.51</a>'
  chicago: Jecker, Ismael R, Orna Kupferman, and Nicolas Mazzocchi. “Unary Prime Languages.”
    In <i>45th International Symposium on Mathematical Foundations of Computer Science</i>,
    Vol. 170. Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2020. <a href="https://doi.org/10.4230/LIPIcs.MFCS.2020.51">https://doi.org/10.4230/LIPIcs.MFCS.2020.51</a>.
  ieee: I. R. Jecker, O. Kupferman, and N. Mazzocchi, “Unary prime languages,” in
    <i>45th International Symposium on Mathematical Foundations of Computer Science</i>,
    Prague, Czech Republic, 2020, vol. 170.
  ista: 'Jecker IR, Kupferman O, Mazzocchi N. 2020. Unary prime languages. 45th International
    Symposium on Mathematical Foundations of Computer Science. MFCS: Symposium on
    Mathematical Foundations of Computer Science, LIPIcs, vol. 170, 51:1-51:12.'
  mla: Jecker, Ismael R., et al. “Unary Prime Languages.” <i>45th International Symposium
    on Mathematical Foundations of Computer Science</i>, vol. 170, 51:1-51:12, Schloss
    Dagstuhl - Leibniz-Zentrum für Informatik, 2020, doi:<a href="https://doi.org/10.4230/LIPIcs.MFCS.2020.51">10.4230/LIPIcs.MFCS.2020.51</a>.
  short: I.R. Jecker, O. Kupferman, N. Mazzocchi, in:, 45th International Symposium
    on Mathematical Foundations of Computer Science, Schloss Dagstuhl - Leibniz-Zentrum
    für Informatik, 2020.
conference:
  end_date: 2020-08-28
  location: Prague, Czech Republic
  name: 'MFCS: Symposium on Mathematical Foundations of Computer Science'
  start_date: 2020-08-24
date_created: 2020-09-20T22:01:36Z
date_published: 2020-08-18T00:00:00Z
date_updated: 2021-01-12T08:19:56Z
day: '18'
ddc:
- '000'
department:
- _id: KrCh
doi: 10.4230/LIPIcs.MFCS.2020.51
ec_funded: 1
file:
- access_level: open_access
  checksum: 2dc9e2fad6becd4563aef3e27a473f70
  content_type: application/pdf
  creator: dernst
  date_created: 2020-09-21T14:17:08Z
  date_updated: 2020-09-21T14:17:08Z
  file_id: '8552'
  file_name: 2020_LIPIcsMFCS_Jecker.pdf
  file_size: 597977
  relation: main_file
  success: 1
file_date_updated: 2020-09-21T14:17:08Z
has_accepted_license: '1'
intvolume: '       170'
language:
- iso: eng
month: '08'
oa: 1
oa_version: Published Version
project:
- _id: 260C2330-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '754411'
  name: ISTplus - Postdoctoral Fellowships
publication: 45th International Symposium on Mathematical Foundations of Computer
  Science
publication_identifier:
  isbn:
  - '9783959771597'
  issn:
  - '18688969'
publication_status: published
publisher: Schloss Dagstuhl - Leibniz-Zentrum für Informatik
quality_controlled: '1'
scopus_import: '1'
status: public
title: Unary prime languages
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...
