---
_id: '306'
abstract:
- lang: eng
  text: A cornerstone of statistical inference, the maximum entropy framework is being
    increasingly applied to construct descriptive and predictive models of biological
    systems, especially complex biological networks, from large experimental data
    sets. Both its broad applicability and the success it obtained in different contexts
    hinge upon its conceptual simplicity and mathematical soundness. Here we try to
    concisely review the basic elements of the maximum entropy principle, starting
    from the notion of ‘entropy’, and describe its usefulness for the analysis of
    biological systems. As examples, we focus specifically on the problem of reconstructing
    gene interaction networks from expression data and on recent work attempting to
    expand our system-level understanding of bacterial metabolism. Finally, we highlight
    some extensions and potential limitations of the maximum entropy approach, and
    point to more recent developments that are likely to play a key role in the upcoming
    challenges of extracting structures and information from increasingly rich, high-throughput
    biological data.
article_number: e00596
author:
- first_name: Andrea
  full_name: De Martino, Andrea
  last_name: De Martino
- first_name: Daniele
  full_name: De Martino, Daniele
  id: 3FF5848A-F248-11E8-B48F-1D18A9856A87
  last_name: De Martino
  orcid: 0000-0002-5214-4706
citation:
  ama: De Martino A, De Martino D. An introduction to the maximum entropy approach
    and its application to inference problems in biology. <i>Heliyon</i>. 2018;4(4).
    doi:<a href="https://doi.org/10.1016/j.heliyon.2018.e00596">10.1016/j.heliyon.2018.e00596</a>
  apa: De Martino, A., &#38; De Martino, D. (2018). An introduction to the maximum
    entropy approach and its application to inference problems in biology. <i>Heliyon</i>.
    Elsevier. <a href="https://doi.org/10.1016/j.heliyon.2018.e00596">https://doi.org/10.1016/j.heliyon.2018.e00596</a>
  chicago: De Martino, Andrea, and Daniele De Martino. “An Introduction to the Maximum
    Entropy Approach and Its Application to Inference Problems in Biology.” <i>Heliyon</i>.
    Elsevier, 2018. <a href="https://doi.org/10.1016/j.heliyon.2018.e00596">https://doi.org/10.1016/j.heliyon.2018.e00596</a>.
  ieee: A. De Martino and D. De Martino, “An introduction to the maximum entropy approach
    and its application to inference problems in biology,” <i>Heliyon</i>, vol. 4,
    no. 4. Elsevier, 2018.
  ista: De Martino A, De Martino D. 2018. An introduction to the maximum entropy approach
    and its application to inference problems in biology. Heliyon. 4(4), e00596.
  mla: De Martino, Andrea, and Daniele De Martino. “An Introduction to the Maximum
    Entropy Approach and Its Application to Inference Problems in Biology.” <i>Heliyon</i>,
    vol. 4, no. 4, e00596, Elsevier, 2018, doi:<a href="https://doi.org/10.1016/j.heliyon.2018.e00596">10.1016/j.heliyon.2018.e00596</a>.
  short: A. De Martino, D. De Martino, Heliyon 4 (2018).
date_created: 2018-12-11T11:45:44Z
date_published: 2018-04-01T00:00:00Z
date_updated: 2021-01-12T07:40:46Z
day: '01'
ddc:
- '530'
department:
- _id: GaTk
doi: 10.1016/j.heliyon.2018.e00596
ec_funded: 1
file:
- access_level: open_access
  checksum: 67010cf5e3b3e0637c659371714a715a
  content_type: application/pdf
  creator: dernst
  date_created: 2019-02-06T07:36:24Z
  date_updated: 2020-07-14T12:45:59Z
  file_id: '5929'
  file_name: 2018_Heliyon_DeMartino.pdf
  file_size: 994490
  relation: main_file
file_date_updated: 2020-07-14T12:45:59Z
has_accepted_license: '1'
intvolume: '         4'
issue: '4'
language:
- iso: eng
license: https://creativecommons.org/licenses/by/4.0/
month: '04'
oa: 1
oa_version: Published Version
project:
- _id: 25681D80-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '291734'
  name: International IST Postdoc Fellowship Programme
publication: Heliyon
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: 1
status: public
title: An introduction to the maximum entropy approach and its application to inference
  problems in biology
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: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 4
year: '2018'
...
---
_id: '307'
abstract:
- lang: eng
  text: 'Spontaneous emission spectra of two initially excited closely spaced identical
    atoms are very sensitive to the strength and the direction of the applied magnetic
    field. We consider the relevant schemes that ensure the determination of the mutual
    spatial orientation of the atoms and the distance between them by entirely optical
    means. A corresponding theoretical description is given accounting for the dipole-dipole
    interaction between the two atoms in the presence of a magnetic field and for
    polarizations of the quantum field interacting with magnetic sublevels of the
    two-atom system. '
acknowledgement: The work was partially supported by Russian Foundation for Basic
  Research (Grant No. 15-02-05657a) and by the Basic research program of Higher School
  of Economics (HSE).
article_number: ' 043812 '
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Elena
  full_name: Redchenko, Elena
  id: 2C21D6E8-F248-11E8-B48F-1D18A9856A87
  last_name: Redchenko
- first_name: Alexander
  full_name: Makarov, Alexander
  last_name: Makarov
- first_name: Vladimir
  full_name: Yudson, Vladimir
  last_name: Yudson
citation:
  ama: Redchenko E, Makarov A, Yudson V. Nanoscopy of pairs of atoms by fluorescence
    in a magnetic field. <i> Physical Review A - Atomic, Molecular, and Optical Physics</i>.
    2018;97(4). doi:<a href="https://doi.org/10.1103/PhysRevA.97.043812">10.1103/PhysRevA.97.043812</a>
  apa: Redchenko, E., Makarov, A., &#38; Yudson, V. (2018). Nanoscopy of pairs of
    atoms by fluorescence in a magnetic field. <i> Physical Review A - Atomic, Molecular,
    and Optical Physics</i>. American Physical Society. <a href="https://doi.org/10.1103/PhysRevA.97.043812">https://doi.org/10.1103/PhysRevA.97.043812</a>
  chicago: Redchenko, Elena, Alexander Makarov, and Vladimir Yudson. “Nanoscopy of
    Pairs of Atoms by Fluorescence in a Magnetic Field.” <i> Physical Review A - Atomic,
    Molecular, and Optical Physics</i>. American Physical Society, 2018. <a href="https://doi.org/10.1103/PhysRevA.97.043812">https://doi.org/10.1103/PhysRevA.97.043812</a>.
  ieee: E. Redchenko, A. Makarov, and V. Yudson, “Nanoscopy of pairs of atoms by fluorescence
    in a magnetic field,” <i> Physical Review A - Atomic, Molecular, and Optical Physics</i>,
    vol. 97, no. 4. American Physical Society, 2018.
  ista: Redchenko E, Makarov A, Yudson V. 2018. Nanoscopy of pairs of atoms by fluorescence
    in a magnetic field.  Physical Review A - Atomic, Molecular, and Optical Physics.
    97(4), 043812.
  mla: Redchenko, Elena, et al. “Nanoscopy of Pairs of Atoms by Fluorescence in a
    Magnetic Field.” <i> Physical Review A - Atomic, Molecular, and Optical Physics</i>,
    vol. 97, no. 4, 043812, American Physical Society, 2018, doi:<a href="https://doi.org/10.1103/PhysRevA.97.043812">10.1103/PhysRevA.97.043812</a>.
  short: E. Redchenko, A. Makarov, V. Yudson,  Physical Review A - Atomic, Molecular,
    and Optical Physics 97 (2018).
date_created: 2018-12-11T11:45:44Z
date_published: 2018-04-09T00:00:00Z
date_updated: 2023-09-13T09:00:41Z
day: '09'
department:
- _id: JoFi
doi: 10.1103/PhysRevA.97.043812
external_id:
  arxiv:
  - '1712.10127'
  isi:
  - '000429454000015'
intvolume: '        97'
isi: 1
issue: '4'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://arxiv.org/abs/1712.10127
month: '04'
oa: 1
oa_version: Submitted Version
publication: ' Physical Review A - Atomic, Molecular, and Optical Physics'
publication_status: published
publisher: American Physical Society
publist_id: '7572'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Nanoscopy of pairs of atoms by fluorescence in a magnetic field
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 97
year: '2018'
...
---
_id: '308'
abstract:
- lang: eng
  text: Migrating cells penetrate tissue barriers during development, inflammatory
    responses, and tumor metastasis. We study if migration in vivo in such three-dimensionally
    confined environments requires changes in the mechanical properties of the surrounding
    cells using embryonic Drosophila melanogaster hemocytes, also called macrophages,
    as a model. We find that macrophage invasion into the germband through transient
    separation of the apposing ectoderm and mesoderm requires cell deformations and
    reductions in apical tension in the ectoderm. Interestingly, the genetic pathway
    governing these mechanical shifts acts downstream of the only known tumor necrosis
    factor superfamily member in Drosophila, Eiger, and its receptor, Grindelwald.
    Eiger-Grindelwald signaling reduces levels of active Myosin in the germband ectodermal
    cortex through the localization of a Crumbs complex component, Patj (Pals-1-associated
    tight junction protein). We therefore elucidate a distinct molecular pathway that
    controls tissue tension and demonstrate the importance of such regulation for
    invasive migration in vivo.
acknowledged_ssus:
- _id: SSU
article_processing_charge: No
article_type: original
author:
- first_name: Aparna
  full_name: Ratheesh, Aparna
  id: 2F064CFE-F248-11E8-B48F-1D18A9856A87
  last_name: Ratheesh
  orcid: 0000-0001-7190-0776
- first_name: Julia
  full_name: Biebl, Julia
  id: 3CCBB46E-F248-11E8-B48F-1D18A9856A87
  last_name: Biebl
- first_name: Michael
  full_name: Smutny, Michael
  last_name: Smutny
- first_name: Jana
  full_name: Veselá, Jana
  id: 433253EE-F248-11E8-B48F-1D18A9856A87
  last_name: Veselá
- first_name: Ekaterina
  full_name: Papusheva, Ekaterina
  id: 41DB591E-F248-11E8-B48F-1D18A9856A87
  last_name: Papusheva
- first_name: Gabriel
  full_name: Krens, Gabriel
  id: 2B819732-F248-11E8-B48F-1D18A9856A87
  last_name: Krens
  orcid: 0000-0003-4761-5996
- first_name: Walter
  full_name: Kaufmann, Walter
  id: 3F99E422-F248-11E8-B48F-1D18A9856A87
  last_name: Kaufmann
  orcid: 0000-0001-9735-5315
- first_name: Attila
  full_name: György, Attila
  id: 3BCEDBE0-F248-11E8-B48F-1D18A9856A87
  last_name: György
  orcid: 0000-0002-1819-198X
- first_name: Alessandra M
  full_name: Casano, Alessandra M
  id: 3DBA3F4E-F248-11E8-B48F-1D18A9856A87
  last_name: Casano
  orcid: 0000-0002-6009-6804
- first_name: Daria E
  full_name: Siekhaus, Daria E
  id: 3D224B9E-F248-11E8-B48F-1D18A9856A87
  last_name: Siekhaus
  orcid: 0000-0001-8323-8353
citation:
  ama: Ratheesh A, Bicher J, Smutny M, et al. Drosophila TNF modulates tissue tension
    in the embryo to facilitate macrophage invasive migration. <i>Developmental Cell</i>.
    2018;45(3):331-346. doi:<a href="https://doi.org/10.1016/j.devcel.2018.04.002">10.1016/j.devcel.2018.04.002</a>
  apa: Ratheesh, A., Bicher, J., Smutny, M., Veselá, J., Papusheva, E., Krens, G.,
    … Siekhaus, D. E. (2018). Drosophila TNF modulates tissue tension in the embryo
    to facilitate macrophage invasive migration. <i>Developmental Cell</i>. Elsevier.
    <a href="https://doi.org/10.1016/j.devcel.2018.04.002">https://doi.org/10.1016/j.devcel.2018.04.002</a>
  chicago: Ratheesh, Aparna, Julia Bicher, Michael Smutny, Jana Veselá, Ekaterina
    Papusheva, Gabriel Krens, Walter Kaufmann, Attila György, Alessandra M Casano,
    and Daria E Siekhaus. “Drosophila TNF Modulates Tissue Tension in the Embryo to
    Facilitate Macrophage Invasive Migration.” <i>Developmental Cell</i>. Elsevier,
    2018. <a href="https://doi.org/10.1016/j.devcel.2018.04.002">https://doi.org/10.1016/j.devcel.2018.04.002</a>.
  ieee: A. Ratheesh <i>et al.</i>, “Drosophila TNF modulates tissue tension in the
    embryo to facilitate macrophage invasive migration,” <i>Developmental Cell</i>,
    vol. 45, no. 3. Elsevier, pp. 331–346, 2018.
  ista: Ratheesh A, Bicher J, Smutny M, Veselá J, Papusheva E, Krens G, Kaufmann W,
    György A, Casano AM, Siekhaus DE. 2018. Drosophila TNF modulates tissue tension
    in the embryo to facilitate macrophage invasive migration. Developmental Cell.
    45(3), 331–346.
  mla: Ratheesh, Aparna, et al. “Drosophila TNF Modulates Tissue Tension in the Embryo
    to Facilitate Macrophage Invasive Migration.” <i>Developmental Cell</i>, vol.
    45, no. 3, Elsevier, 2018, pp. 331–46, doi:<a href="https://doi.org/10.1016/j.devcel.2018.04.002">10.1016/j.devcel.2018.04.002</a>.
  short: A. Ratheesh, J. Bicher, M. Smutny, J. Veselá, E. Papusheva, G. Krens, W.
    Kaufmann, A. György, A.M. Casano, D.E. Siekhaus, Developmental Cell 45 (2018)
    331–346.
date_created: 2018-12-11T11:45:44Z
date_published: 2018-05-07T00:00:00Z
date_updated: 2023-09-11T13:22:13Z
day: '07'
department:
- _id: DaSi
- _id: CaHe
- _id: Bio
- _id: EM-Fac
- _id: MiSi
doi: 10.1016/j.devcel.2018.04.002
ec_funded: 1
external_id:
  isi:
  - '000432461400009'
  pmid:
  - '29738712'
intvolume: '        45'
isi: 1
issue: '3'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.1016/j.devcel.2018.04.002
month: '05'
oa: 1
oa_version: Published Version
page: 331 - 346
pmid: 1
project:
- _id: 253B6E48-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: P29638
  name: Drosophila TNFa´s Funktion in Immunzellen
- _id: 2536F660-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '334077'
  name: Investigating the role of transporters in invasive migration through junctions
publication: Developmental Cell
publication_status: published
publisher: Elsevier
quality_controlled: '1'
related_material:
  link:
  - description: News on IST Homepage
    relation: press_release
    url: https://ist.ac.at/en/news/cells-change-tension-to-make-tissue-barriers-easier-to-get-through/
scopus_import: '1'
status: public
title: Drosophila TNF modulates tissue tension in the embryo to facilitate macrophage
  invasive migration
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 45
year: '2018'
...
---
_id: '309'
abstract:
- lang: eng
  text: 'We present an efficient algorithm for a problem in the interface between
    clustering and graph embeddings. An embedding '' : G ! M of a graph G into a 2manifold
    M maps the vertices in V (G) to distinct points and the edges in E(G) to interior-disjoint
    Jordan arcs between the corresponding vertices. In applications in clustering,
    cartography, and visualization, nearby vertices and edges are often bundled to
    a common node or arc, due to data compression or low resolution. This raises the
    computational problem of deciding whether a given map '' : G ! M comes from an
    embedding. A map '' : G ! M is a weak embedding if it can be perturbed into an
    embedding ψ: G ! M with k'' "k < " for every &quot; &gt; 0. A polynomial-time
    algorithm for recognizing weak embeddings was recently found by Fulek and Kyncl
    [14], which reduces to solving a system of linear equations over Z2. It runs in
    O(n2!) O(n4:75) time, where 2:373 is the matrix multiplication exponent and n
    is the number of vertices and edges of G. We improve the running time to O(n log
    n). Our algorithm is also conceptually simpler than [14]: We perform a sequence
    of local operations that gradually &quot;untangles&quot; the image ''(G) into
    an embedding (G), or reports that '' is not a weak embedding. It generalizes a
    recent technique developed for the case that G is a cycle and the embedding is
    a simple polygon [1], and combines local constraints on the orientation of subgraphs
    directly, thereby eliminating the need for solving large systems of linear equations.'
acknowledgement: '∗Research supported in part by the NSF awards CCF-1422311 and CCF-1423615,
  and the Science Without Borders program. The second author gratefully acknowledges
  support from Austrian Science Fund (FWF): M2281-N35.'
article_processing_charge: No
arxiv: 1
author:
- first_name: Hugo
  full_name: Akitaya, Hugo
  last_name: Akitaya
- first_name: Radoslav
  full_name: Fulek, Radoslav
  id: 39F3FFE4-F248-11E8-B48F-1D18A9856A87
  last_name: Fulek
  orcid: 0000-0001-8485-1774
- first_name: Csaba
  full_name: Tóth, Csaba
  last_name: Tóth
citation:
  ama: 'Akitaya H, Fulek R, Tóth C. Recognizing weak embeddings of graphs. In: ACM;
    2018:274-292. doi:<a href="https://doi.org/10.1137/1.9781611975031.20">10.1137/1.9781611975031.20</a>'
  apa: 'Akitaya, H., Fulek, R., &#38; Tóth, C. (2018). Recognizing weak embeddings
    of graphs (pp. 274–292). Presented at the SODA: Symposium on Discrete Algorithms,
    New Orleans, LA, USA: ACM. <a href="https://doi.org/10.1137/1.9781611975031.20">https://doi.org/10.1137/1.9781611975031.20</a>'
  chicago: Akitaya, Hugo, Radoslav Fulek, and Csaba Tóth. “Recognizing Weak Embeddings
    of Graphs,” 274–92. ACM, 2018. <a href="https://doi.org/10.1137/1.9781611975031.20">https://doi.org/10.1137/1.9781611975031.20</a>.
  ieee: 'H. Akitaya, R. Fulek, and C. Tóth, “Recognizing weak embeddings of graphs,”
    presented at the SODA: Symposium on Discrete Algorithms, New Orleans, LA, USA,
    2018, pp. 274–292.'
  ista: 'Akitaya H, Fulek R, Tóth C. 2018. Recognizing weak embeddings of graphs.
    SODA: Symposium on Discrete Algorithms, 274–292.'
  mla: Akitaya, Hugo, et al. <i>Recognizing Weak Embeddings of Graphs</i>. ACM, 2018,
    pp. 274–92, doi:<a href="https://doi.org/10.1137/1.9781611975031.20">10.1137/1.9781611975031.20</a>.
  short: H. Akitaya, R. Fulek, C. Tóth, in:, ACM, 2018, pp. 274–292.
conference:
  end_date: 2018-01-10
  location: New Orleans, LA, USA
  name: 'SODA: Symposium on Discrete Algorithms'
  start_date: 2018-01-07
date_created: 2018-12-11T11:45:45Z
date_published: 2018-01-01T00:00:00Z
date_updated: 2023-09-15T12:19:32Z
day: '01'
department:
- _id: UlWa
doi: 10.1137/1.9781611975031.20
external_id:
  arxiv:
  - '1709.09209'
  isi:
  - '000483921200021'
isi: 1
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://arxiv.org/abs/1709.09209
month: '01'
oa: 1
oa_version: Preprint
page: 274 - 292
project:
- _id: 261FA626-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: M02281
  name: Eliminating intersections in drawings of graphs
publication_status: published
publisher: ACM
publist_id: '7556'
quality_controlled: '1'
related_material:
  record:
  - id: '6982'
    relation: later_version
    status: public
scopus_import: '1'
status: public
title: Recognizing weak embeddings of graphs
type: conference
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
year: '2018'
...
---
_id: '31'
abstract:
- lang: eng
  text: Correlations in sensory neural networks have both extrinsic and intrinsic
    origins. Extrinsic or stimulus correlations arise from shared inputs to the network
    and, thus, depend strongly on the stimulus ensemble. Intrinsic or noise correlations
    reflect biophysical mechanisms of interactions between neurons, which are expected
    to be robust to changes in the stimulus ensemble. Despite the importance of this
    distinction for understanding how sensory networks encode information collectively,
    no method exists to reliably separate intrinsic interactions from extrinsic correlations
    in neural activity data, limiting our ability to build predictive models of the
    network response. In this paper we introduce a general strategy to infer population
    models of interacting neurons that collectively encode stimulus information. The
    key to disentangling intrinsic from extrinsic correlations is to infer the couplings
    between neurons separately from the encoding model and to combine the two using
    corrections calculated in a mean-field approximation. We demonstrate the effectiveness
    of this approach in retinal recordings. The same coupling network is inferred
    from responses to radically different stimulus ensembles, showing that these couplings
    indeed reflect stimulus-independent interactions between neurons. The inferred
    model predicts accurately the collective response of retinal ganglion cell populations
    as a function of the stimulus.
acknowledgement: This work was supported by ANR Trajectory, the French State program
  Investissements d’Avenir managed by the Agence Nationale de la Recherche (LIFESENSES;
  ANR-10-LABX-65), EC Grant No. H2020-785907 from the Human Brain Project, NIH Grant
  No. U01NS090501, and an AVIESAN-UNADEV grant to O.M. M.C. was supported by the Agence
  Nationale de la Recherche Jeune Chercheur/Jeune Chercheuse grant (ANR-17-CE37-0013).
article_number: '042410'
article_processing_charge: No
article_type: original
author:
- first_name: Ulisse
  full_name: Ferrari, Ulisse
  last_name: Ferrari
- first_name: Stephane
  full_name: Deny, Stephane
  last_name: Deny
- first_name: Matthew J
  full_name: Chalk, Matthew J
  last_name: Chalk
- first_name: Gasper
  full_name: Tkacik, Gasper
  id: 3D494DCA-F248-11E8-B48F-1D18A9856A87
  last_name: Tkacik
  orcid: 0000-0002-6699-1455
- first_name: Olivier
  full_name: Marre, Olivier
  last_name: Marre
- first_name: Thierry
  full_name: Mora, Thierry
  last_name: Mora
citation:
  ama: Ferrari U, Deny S, Chalk MJ, Tkačik G, Marre O, Mora T. Separating intrinsic
    interactions from extrinsic correlations in a network of sensory neurons. <i>Physical
    Review E</i>. 2018;98(4). doi:<a href="https://doi.org/10.1103/PhysRevE.98.042410">10.1103/PhysRevE.98.042410</a>
  apa: Ferrari, U., Deny, S., Chalk, M. J., Tkačik, G., Marre, O., &#38; Mora, T.
    (2018). Separating intrinsic interactions from extrinsic correlations in a network
    of sensory neurons. <i>Physical Review E</i>. American Physical Society. <a href="https://doi.org/10.1103/PhysRevE.98.042410">https://doi.org/10.1103/PhysRevE.98.042410</a>
  chicago: Ferrari, Ulisse, Stephane Deny, Matthew J Chalk, Gašper Tkačik, Olivier
    Marre, and Thierry Mora. “Separating Intrinsic Interactions from Extrinsic Correlations
    in a Network of Sensory Neurons.” <i>Physical Review E</i>. American Physical
    Society, 2018. <a href="https://doi.org/10.1103/PhysRevE.98.042410">https://doi.org/10.1103/PhysRevE.98.042410</a>.
  ieee: U. Ferrari, S. Deny, M. J. Chalk, G. Tkačik, O. Marre, and T. Mora, “Separating
    intrinsic interactions from extrinsic correlations in a network of sensory neurons,”
    <i>Physical Review E</i>, vol. 98, no. 4. American Physical Society, 2018.
  ista: Ferrari U, Deny S, Chalk MJ, Tkačik G, Marre O, Mora T. 2018. Separating intrinsic
    interactions from extrinsic correlations in a network of sensory neurons. Physical
    Review E. 98(4), 042410.
  mla: Ferrari, Ulisse, et al. “Separating Intrinsic Interactions from Extrinsic Correlations
    in a Network of Sensory Neurons.” <i>Physical Review E</i>, vol. 98, no. 4, 042410,
    American Physical Society, 2018, doi:<a href="https://doi.org/10.1103/PhysRevE.98.042410">10.1103/PhysRevE.98.042410</a>.
  short: U. Ferrari, S. Deny, M.J. Chalk, G. Tkačik, O. Marre, T. Mora, Physical Review
    E 98 (2018).
date_created: 2018-12-11T11:44:15Z
date_published: 2018-10-17T00:00:00Z
date_updated: 2023-09-18T09:18:44Z
day: '17'
department:
- _id: GaTk
doi: 10.1103/PhysRevE.98.042410
ec_funded: 1
external_id:
  isi:
  - '000447486100004'
intvolume: '        98'
isi: 1
issue: '4'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://www.biorxiv.org/content/10.1101/243816v2.full
month: '10'
oa: 1
oa_version: Preprint
project:
- _id: 26436750-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '785907'
  name: Human Brain Project Specific Grant Agreement 2 (HBP SGA 2)
publication: Physical Review E
publication_identifier:
  issn:
  - '24700045'
publication_status: published
publisher: American Physical Society
publist_id: '8024'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Separating intrinsic interactions from extrinsic correlations in a network
  of sensory neurons
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 98
year: '2018'
...
---
_id: '310'
abstract:
- lang: eng
  text: A model of computation that is widely used in the formal analysis of reactive
    systems is symbolic algorithms. In this model the access to the input graph is
    restricted to consist of symbolic operations, which are expensive in comparison
    to the standard RAM operations. We give lower bounds on the number of symbolic
    operations for basic graph problems such as the computation of the strongly connected
    components and of the approximate diameter as well as for fundamental problems
    in model checking such as safety, liveness, and coliveness. Our lower bounds are
    linear in the number of vertices of the graph, even for constant-diameter graphs.
    For none of these problems lower bounds on the number of symbolic operations were
    known before. The lower bounds show an interesting separation of these problems
    from the reachability problem, which can be solved with O(D) symbolic operations,
    where D is the diameter of the graph. Additionally we present an approximation
    algorithm for the graph diameter which requires Õ(n/D) symbolic steps to achieve
    a (1 +ϵ)-approximation for any constant &gt; 0. This compares to O(n/D) symbolic
    steps for the (naive) exact algorithm and O(D) symbolic steps for a 2-approximation.
    Finally we also give a refined analysis of the strongly connected components algorithms
    of [15], showing that it uses an optimal number of symbolic steps that is proportional
    to the sum of the diameters of the strongly connected components.
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: Wolfgang
  full_name: Dvorák, Wolfgang
  last_name: Dvorák
- first_name: Monika H
  full_name: Henzinger, Monika H
  id: 540c9bbd-f2de-11ec-812d-d04a5be85630
  last_name: Henzinger
  orcid: 0000-0002-5008-6530
- first_name: Veronika
  full_name: Loitzenbauer, Veronika
  last_name: Loitzenbauer
citation:
  ama: 'Chatterjee K, Dvorák W, Henzinger MH, Loitzenbauer V. Lower bounds for symbolic
    computation on graphs: Strongly connected components, liveness, safety, and diameter.
    In: ACM; 2018:2341-2356. doi:<a href="https://doi.org/10.1137/1.9781611975031.151">10.1137/1.9781611975031.151</a>'
  apa: 'Chatterjee, K., Dvorák, W., Henzinger, M. H., &#38; Loitzenbauer, V. (2018).
    Lower bounds for symbolic computation on graphs: Strongly connected components,
    liveness, safety, and diameter (pp. 2341–2356). Presented at the SODA: Symposium
    on Discrete Algorithms, New Orleans, Louisiana, United States: ACM. <a href="https://doi.org/10.1137/1.9781611975031.151">https://doi.org/10.1137/1.9781611975031.151</a>'
  chicago: 'Chatterjee, Krishnendu, Wolfgang Dvorák, Monika H Henzinger, and Veronika
    Loitzenbauer. “Lower Bounds for Symbolic Computation on Graphs: Strongly Connected
    Components, Liveness, Safety, and Diameter,” 2341–56. ACM, 2018. <a href="https://doi.org/10.1137/1.9781611975031.151">https://doi.org/10.1137/1.9781611975031.151</a>.'
  ieee: 'K. Chatterjee, W. Dvorák, M. H. Henzinger, and V. Loitzenbauer, “Lower bounds
    for symbolic computation on graphs: Strongly connected components, liveness, safety,
    and diameter,” presented at the SODA: Symposium on Discrete Algorithms, New Orleans,
    Louisiana, United States, 2018, pp. 2341–2356.'
  ista: 'Chatterjee K, Dvorák W, Henzinger MH, Loitzenbauer V. 2018. Lower bounds
    for symbolic computation on graphs: Strongly connected components, liveness, safety,
    and diameter. SODA: Symposium on Discrete Algorithms, 2341–2356.'
  mla: 'Chatterjee, Krishnendu, et al. <i>Lower Bounds for Symbolic Computation on
    Graphs: Strongly Connected Components, Liveness, Safety, and Diameter</i>. ACM,
    2018, pp. 2341–56, doi:<a href="https://doi.org/10.1137/1.9781611975031.151">10.1137/1.9781611975031.151</a>.'
  short: K. Chatterjee, W. Dvorák, M.H. Henzinger, V. Loitzenbauer, in:, ACM, 2018,
    pp. 2341–2356.
conference:
  end_date: 2018-01-10
  location: New Orleans, Louisiana, United States
  name: 'SODA: Symposium on Discrete Algorithms'
  start_date: 2018-01-07
date_created: 2018-12-11T11:45:45Z
date_published: 2018-01-01T00:00:00Z
date_updated: 2025-06-02T08:53:40Z
day: '01'
department:
- _id: KrCh
doi: 10.1137/1.9781611975031.151
ec_funded: 1
external_id:
  arxiv:
  - '1711.09148'
  isi:
  - '000483921200152'
isi: 1
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://arxiv.org/abs/1711.09148
month: '01'
oa: 1
oa_version: Preprint
page: 2341 - 2356
project:
- _id: 25832EC2-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: S 11407_N23
  name: Rigorous Systems Engineering
- _id: 2581B60A-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '279307'
  name: 'Quantitative Graph Games: Theory and Applications'
- _id: 25892FC0-B435-11E9-9278-68D0E5697425
  grant_number: ICT15-003
  name: Efficient Algorithms for Computer Aided Verification
publication_status: published
publisher: ACM
publist_id: '7555'
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Lower bounds for symbolic computation on graphs: Strongly connected components,
  liveness, safety, and diameter'
type: conference
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
year: '2018'
...
---
_id: '311'
abstract:
- lang: eng
  text: 'Smart contracts are computer programs that are executed by a network of mutually
    distrusting agents, without the need of an external trusted authority. Smart contracts
    handle and transfer assets of considerable value (in the form of crypto-currency
    like Bitcoin). Hence, it is crucial that their implementation is bug-free. We
    identify the utility (or expected payoff) of interacting with such smart contracts
    as the basic and canonical quantitative property for such contracts. We present
    a framework for such quantitative analysis of smart contracts. Such a formal framework
    poses new and novel research challenges in programming languages, as it requires
    modeling of game-theoretic aspects to analyze incentives for deviation from honest
    behavior and modeling utilities which are not specified as standard temporal properties
    such as safety and termination. While game-theoretic incentives have been analyzed
    in the security community, their analysis has been restricted to the very special
    case of stateless games. However, to analyze smart contracts, stateful analysis
    is required as it must account for the different program states of the protocol.
    Our main contributions are as follows: we present (i)~a simplified programming
    language for smart contracts; (ii)~an automatic translation of the programs to
    state-based games; (iii)~an abstraction-refinement approach to solve such games;
    and (iv)~experimental results on real-world-inspired smart contracts.'
acknowledgement: 'The research was partially supported by Vienna Science and Technology
  Fund (WWTF) Project ICT15-003, Austrian Science Fund (FWF) NFN Grant No S11407-N23
  (RiSE/SHiNE), and ERC Starting grant (279307: Graph Games).'
alternative_title:
- LNCS
article_processing_charge: No
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Amir
  full_name: Goharshady, Amir
  id: 391365CE-F248-11E8-B48F-1D18A9856A87
  last_name: Goharshady
  orcid: 0000-0003-1702-6584
- first_name: Yaron
  full_name: Velner, Yaron
  last_name: Velner
citation:
  ama: 'Chatterjee K, Goharshady AK, Velner Y. Quantitative analysis of smart contracts.
    In: Vol 10801. Springer; 2018:739-767. doi:<a href="https://doi.org/10.1007/978-3-319-89884-1_26">10.1007/978-3-319-89884-1_26</a>'
  apa: 'Chatterjee, K., Goharshady, A. K., &#38; Velner, Y. (2018). Quantitative analysis
    of smart contracts (Vol. 10801, pp. 739–767). Presented at the ESOP: European
    Symposium on Programming, Thessaloniki, Greece: Springer. <a href="https://doi.org/10.1007/978-3-319-89884-1_26">https://doi.org/10.1007/978-3-319-89884-1_26</a>'
  chicago: Chatterjee, Krishnendu, Amir Kafshdar Goharshady, and Yaron Velner. “Quantitative
    Analysis of Smart Contracts,” 10801:739–67. Springer, 2018. <a href="https://doi.org/10.1007/978-3-319-89884-1_26">https://doi.org/10.1007/978-3-319-89884-1_26</a>.
  ieee: 'K. Chatterjee, A. K. Goharshady, and Y. Velner, “Quantitative analysis of
    smart contracts,” presented at the ESOP: European Symposium on Programming, Thessaloniki,
    Greece, 2018, vol. 10801, pp. 739–767.'
  ista: 'Chatterjee K, Goharshady AK, Velner Y. 2018. Quantitative analysis of smart
    contracts. ESOP: European Symposium on Programming, LNCS, vol. 10801, 739–767.'
  mla: Chatterjee, Krishnendu, et al. <i>Quantitative Analysis of Smart Contracts</i>.
    Vol. 10801, Springer, 2018, pp. 739–67, doi:<a href="https://doi.org/10.1007/978-3-319-89884-1_26">10.1007/978-3-319-89884-1_26</a>.
  short: K. Chatterjee, A.K. Goharshady, Y. Velner, in:, Springer, 2018, pp. 739–767.
conference:
  end_date: 2018-04-19
  location: Thessaloniki, Greece
  name: 'ESOP: European Symposium on Programming'
  start_date: 2018-04-16
date_created: 2018-12-11T11:45:45Z
date_published: 2018-04-01T00:00:00Z
date_updated: 2025-06-02T08:53:41Z
day: '01'
ddc:
- '000'
department:
- _id: KrCh
doi: 10.1007/978-3-319-89884-1_26
ec_funded: 1
file:
- access_level: open_access
  checksum: 9c8a8338c571903b599b6ca93abd2cce
  content_type: application/pdf
  creator: dernst
  date_created: 2018-12-17T15:45:49Z
  date_updated: 2020-07-14T12:46:00Z
  file_id: '5716'
  file_name: 2018_ESOP_Chatterjee.pdf
  file_size: 1394993
  relation: main_file
file_date_updated: 2020-07-14T12:46:00Z
has_accepted_license: '1'
intvolume: '     10801'
language:
- iso: eng
month: '04'
oa: 1
oa_version: Published Version
page: 739 - 767
project:
- _id: 25892FC0-B435-11E9-9278-68D0E5697425
  grant_number: ICT15-003
  name: Efficient Algorithms for Computer Aided Verification
- _id: 25832EC2-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: S 11407_N23
  name: Rigorous Systems Engineering
- _id: 2581B60A-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '279307'
  name: 'Quantitative Graph Games: Theory and Applications'
publication_status: published
publisher: Springer
publist_id: '7554'
quality_controlled: '1'
related_material:
  record:
  - id: '8934'
    relation: dissertation_contains
    status: public
scopus_import: '1'
status: public
title: Quantitative analysis of smart contracts
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: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 10801
year: '2018'
...
---
_id: '312'
abstract:
- lang: eng
  text: Motivated by biological questions, we study configurations of equal spheres
    that neither pack nor cover. Placing their centers on a lattice, we define the
    soft density of the configuration by penalizing multiple overlaps. Considering
    the 1-parameter family of diagonally distorted 3-dimensional integer lattices,
    we show that the soft density is maximized at the FCC lattice.
acknowledgement: This work was partially supported by the DFG Collaborative Research
  Center TRR 109, “Discretization in Geometry and Dynamics,” through grant I02979-N35
  of the Austrian Science Fund (FWF).
article_processing_charge: No
article_type: original
author:
- first_name: Herbert
  full_name: Edelsbrunner, Herbert
  id: 3FB178DA-F248-11E8-B48F-1D18A9856A87
  last_name: Edelsbrunner
  orcid: 0000-0002-9823-6833
- first_name: Mabel
  full_name: Iglesias Ham, Mabel
  id: 41B58C0C-F248-11E8-B48F-1D18A9856A87
  last_name: Iglesias Ham
citation:
  ama: Edelsbrunner H, Iglesias Ham M. On the optimality of the FCC lattice for soft
    sphere packing. <i>SIAM J Discrete Math</i>. 2018;32(1):750-782. doi:<a href="https://doi.org/10.1137/16M1097201">10.1137/16M1097201</a>
  apa: Edelsbrunner, H., &#38; Iglesias Ham, M. (2018). On the optimality of the FCC
    lattice for soft sphere packing. <i>SIAM J Discrete Math</i>. Society for Industrial
    and Applied Mathematics . <a href="https://doi.org/10.1137/16M1097201">https://doi.org/10.1137/16M1097201</a>
  chicago: Edelsbrunner, Herbert, and Mabel Iglesias Ham. “On the Optimality of the
    FCC Lattice for Soft Sphere Packing.” <i>SIAM J Discrete Math</i>. Society for
    Industrial and Applied Mathematics , 2018. <a href="https://doi.org/10.1137/16M1097201">https://doi.org/10.1137/16M1097201</a>.
  ieee: H. Edelsbrunner and M. Iglesias Ham, “On the optimality of the FCC lattice
    for soft sphere packing,” <i>SIAM J Discrete Math</i>, vol. 32, no. 1. Society
    for Industrial and Applied Mathematics , pp. 750–782, 2018.
  ista: Edelsbrunner H, Iglesias Ham M. 2018. On the optimality of the FCC lattice
    for soft sphere packing. SIAM J Discrete Math. 32(1), 750–782.
  mla: Edelsbrunner, Herbert, and Mabel Iglesias Ham. “On the Optimality of the FCC
    Lattice for Soft Sphere Packing.” <i>SIAM J Discrete Math</i>, vol. 32, no. 1,
    Society for Industrial and Applied Mathematics , 2018, pp. 750–82, doi:<a href="https://doi.org/10.1137/16M1097201">10.1137/16M1097201</a>.
  short: H. Edelsbrunner, M. Iglesias Ham, SIAM J Discrete Math 32 (2018) 750–782.
date_created: 2018-12-11T11:45:46Z
date_published: 2018-03-29T00:00:00Z
date_updated: 2023-09-13T09:34:38Z
day: '29'
department:
- _id: HeEd
doi: 10.1137/16M1097201
external_id:
  isi:
  - '000428958900038'
intvolume: '        32'
isi: 1
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: http://pdfs.semanticscholar.org/d2d5/6da00fbc674e6a8b1bb9d857167e54200dc6.pdf
month: '03'
oa: 1
oa_version: Submitted Version
page: 750 - 782
project:
- _id: 2561EBF4-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: I02979-N35
  name: Persistence and stability of geometric complexes
publication: SIAM J Discrete Math
publication_identifier:
  issn:
  - '08954801'
publication_status: published
publisher: 'Society for Industrial and Applied Mathematics '
publist_id: '7553'
quality_controlled: '1'
scopus_import: '1'
status: public
title: On the optimality of the FCC lattice for soft sphere packing
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 32
year: '2018'
...
---
_id: '314'
abstract:
- lang: eng
  text: The interface of physics and biology pro-vides a fruitful environment for
    generatingnew concepts and exciting ways forwardto understanding living matter.
    Examplesof successful studies include the estab-lishment and readout of morphogen
    gra-dients during development, signal pro-cessing in protein and genetic networks,the
    role of ﬂuctuations in determining thefates of cells and tissues, and collectiveeffects
    in proteins and in tissues. It is nothard to envision that signiﬁcant further
    ad-vances will translate to societal beneﬁtsby initiating the development of new
    de-vices and strategies for curing disease.However, research at the interface
    posesvarious challenges, in particular for youngscientists, and current institutions
    arerarely designed to facilitate such scientiﬁcprograms. In this Letter, we propose
    aninternational initiative that addressesthese challenges through the establish-ment
    of a worldwide network of platformsfor cross-disciplinary training and incuba-tors
    for starting new collaborations.
article_processing_charge: No
article_type: letter_note
author:
- first_name: Guntram
  full_name: Bauer, Guntram
  last_name: Bauer
- first_name: Nikta
  full_name: Fakhri, Nikta
  last_name: Fakhri
- first_name: Anna
  full_name: Kicheva, Anna
  id: 3959A2A0-F248-11E8-B48F-1D18A9856A87
  last_name: Kicheva
  orcid: 0000-0003-4509-4998
- first_name: Jané
  full_name: Kondev, Jané
  last_name: Kondev
- first_name: Karsten
  full_name: Kruse, Karsten
  last_name: Kruse
- first_name: Hiroyuki
  full_name: Noji, Hiroyuki
  last_name: Noji
- first_name: Daniel
  full_name: Riveline, Daniel
  last_name: Riveline
- first_name: Timothy
  full_name: Saunders, Timothy
  last_name: Saunders
- first_name: Mukund
  full_name: Thatta, Mukund
  last_name: Thatta
- first_name: Eric
  full_name: Wieschaus, Eric
  last_name: Wieschaus
citation:
  ama: Bauer G, Fakhri N, Kicheva A, et al. The science of living matter for tomorrow.
    <i>Cell Systems</i>. 2018;6(4):400-402. doi:<a href="https://doi.org/10.1016/j.cels.2018.04.003">10.1016/j.cels.2018.04.003</a>
  apa: Bauer, G., Fakhri, N., Kicheva, A., Kondev, J., Kruse, K., Noji, H., … Wieschaus,
    E. (2018). The science of living matter for tomorrow. <i>Cell Systems</i>. Cell
    Press. <a href="https://doi.org/10.1016/j.cels.2018.04.003">https://doi.org/10.1016/j.cels.2018.04.003</a>
  chicago: Bauer, Guntram, Nikta Fakhri, Anna Kicheva, Jané Kondev, Karsten Kruse,
    Hiroyuki Noji, Daniel Riveline, Timothy Saunders, Mukund Thatta, and Eric Wieschaus.
    “The Science of Living Matter for Tomorrow.” <i>Cell Systems</i>. Cell Press,
    2018. <a href="https://doi.org/10.1016/j.cels.2018.04.003">https://doi.org/10.1016/j.cels.2018.04.003</a>.
  ieee: G. Bauer <i>et al.</i>, “The science of living matter for tomorrow,” <i>Cell
    Systems</i>, vol. 6, no. 4. Cell Press, pp. 400–402, 2018.
  ista: Bauer G, Fakhri N, Kicheva A, Kondev J, Kruse K, Noji H, Riveline D, Saunders
    T, Thatta M, Wieschaus E. 2018. The science of living matter for tomorrow. Cell
    Systems. 6(4), 400–402.
  mla: Bauer, Guntram, et al. “The Science of Living Matter for Tomorrow.” <i>Cell
    Systems</i>, vol. 6, no. 4, Cell Press, 2018, pp. 400–02, doi:<a href="https://doi.org/10.1016/j.cels.2018.04.003">10.1016/j.cels.2018.04.003</a>.
  short: G. Bauer, N. Fakhri, A. Kicheva, J. Kondev, K. Kruse, H. Noji, D. Riveline,
    T. Saunders, M. Thatta, E. Wieschaus, Cell Systems 6 (2018) 400–402.
date_created: 2018-12-11T11:45:46Z
date_published: 2018-04-25T00:00:00Z
date_updated: 2023-09-19T10:11:25Z
day: '25'
department:
- _id: AnKi
doi: 10.1016/j.cels.2018.04.003
external_id:
  isi:
  - '000432192100003'
  pmid:
  - '29698645'
intvolume: '         6'
isi: 1
issue: '4'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.1016/j.cels.2018.04.003
month: '04'
oa: 1
oa_version: Published Version
page: 400 - 402
pmid: 1
publication: Cell Systems
publication_identifier:
  eissn:
  - 2405-4712
publication_status: published
publisher: Cell Press
publist_id: '7551'
quality_controlled: '1'
scopus_import: '1'
status: public
title: The science of living matter for tomorrow
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 6
year: '2018'
...
---
_id: '315'
abstract:
- lang: eng
  text: 'More than 100 years after Grigg’s influential analysis of species’ borders,
    the causes of limits to species’ ranges still represent a puzzle that has never
    been understood with clarity. The topic has become especially important recently
    as many scientists have become interested in the potential for species’ ranges
    to shift in response to climate change—and yet nearly all of those studies fail
    to recognise or incorporate evolutionary genetics in a way that relates to theoretical
    developments. I show that range margins can be understood based on just two measurable
    parameters: (i) the fitness cost of dispersal—a measure of environmental heterogeneity—and
    (ii) the strength of genetic drift, which reduces genetic diversity. Together,
    these two parameters define an ‘expansion threshold’: adaptation fails when genetic
    drift reduces genetic diversity below that required for adaptation to a heterogeneous
    environment. When the key parameters drop below this expansion threshold locally,
    a sharp range margin forms. When they drop below this threshold throughout the
    species’ range, adaptation collapses everywhere, resulting in either extinction
    or formation of a fragmented metapopulation. Because the effects of dispersal
    differ fundamentally with dimension, the second parameter—the strength of genetic
    drift—is qualitatively different compared to a linear habitat. In two-dimensional
    habitats, genetic drift becomes effectively independent of selection. It decreases
    with ‘neighbourhood size’—the number of individuals accessible by dispersal within
    one generation. Moreover, in contrast to earlier predictions, which neglected
    evolution of genetic variance and/or stochasticity in two dimensions, dispersal
    into small marginal populations aids adaptation. This is because the reduction
    of both genetic and demographic stochasticity has a stronger effect than the cost
    of dispersal through increased maladaptation. The expansion threshold thus provides
    a novel, theoretically justified, and testable prediction for formation of the
    range margin and collapse of the species’ range.'
article_number: e2005372
author:
- first_name: Jitka
  full_name: Polechova, Jitka
  id: 3BBFB084-F248-11E8-B48F-1D18A9856A87
  last_name: Polechova
  orcid: 0000-0003-0951-3112
citation:
  ama: Polechova J. Is the sky the limit? On the expansion threshold of a species’
    range. <i>PLoS Biology</i>. 2018;16(6). doi:<a href="https://doi.org/10.1371/journal.pbio.2005372">10.1371/journal.pbio.2005372</a>
  apa: Polechova, J. (2018). Is the sky the limit? On the expansion threshold of a
    species’ range. <i>PLoS Biology</i>. Public Library of Science. <a href="https://doi.org/10.1371/journal.pbio.2005372">https://doi.org/10.1371/journal.pbio.2005372</a>
  chicago: Polechova, Jitka. “Is the Sky the Limit? On the Expansion Threshold of
    a Species’ Range.” <i>PLoS Biology</i>. Public Library of Science, 2018. <a href="https://doi.org/10.1371/journal.pbio.2005372">https://doi.org/10.1371/journal.pbio.2005372</a>.
  ieee: J. Polechova, “Is the sky the limit? On the expansion threshold of a species’
    range,” <i>PLoS Biology</i>, vol. 16, no. 6. Public Library of Science, 2018.
  ista: Polechova J. 2018. Is the sky the limit? On the expansion threshold of a species’
    range. PLoS Biology. 16(6), e2005372.
  mla: Polechova, Jitka. “Is the Sky the Limit? On the Expansion Threshold of a Species’
    Range.” <i>PLoS Biology</i>, vol. 16, no. 6, e2005372, Public Library of Science,
    2018, doi:<a href="https://doi.org/10.1371/journal.pbio.2005372">10.1371/journal.pbio.2005372</a>.
  short: J. Polechova, PLoS Biology 16 (2018).
date_created: 2018-12-11T11:45:46Z
date_published: 2018-06-15T00:00:00Z
date_updated: 2023-02-23T14:10:16Z
day: '15'
ddc:
- '576'
department:
- _id: NiBa
doi: 10.1371/journal.pbio.2005372
file:
- access_level: open_access
  checksum: 908c52751bba30c55ed36789e5e4c84d
  content_type: application/pdf
  creator: dernst
  date_created: 2019-01-22T08:30:03Z
  date_updated: 2020-07-14T12:46:01Z
  file_id: '5870'
  file_name: 2017_PLOS_Polechova.pdf
  file_size: 6968201
  relation: main_file
file_date_updated: 2020-07-14T12:46:01Z
has_accepted_license: '1'
intvolume: '        16'
issue: '6'
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
publication: PLoS Biology
publication_identifier:
  issn:
  - '15449173'
publication_status: published
publisher: Public Library of Science
publist_id: '7550'
quality_controlled: '1'
related_material:
  record:
  - id: '9839'
    relation: research_data
    status: public
scopus_import: 1
status: public
title: Is the sky the limit? On the expansion threshold of a species’ range
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: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 16
year: '2018'
...
---
_id: '316'
abstract:
- lang: eng
  text: 'Self-incompatibility (SI) is a genetically based recognition system that
    functions to prevent self-fertilization and mating among related plants. An enduring
    puzzle in SI is how the high diversity observed in nature arises and is maintained.
    Based on the underlying recognition mechanism, SI can be classified into two main
    groups: self- and non-self recognition. Most work has focused on diversification
    within self-recognition systems despite expected differences between the two groups
    in the evolutionary pathways and outcomes of diversification. Here, we use a deterministic
    population genetic model and stochastic simulations to investigate how novel S-haplotypes
    evolve in a gametophytic non-self recognition (SRNase/S Locus F-box (SLF)) SI
    system. For this model the pathways for diversification involve either the maintenance
    or breakdown of SI and can vary in the order of mutations of the female (SRNase)
    and male (SLF) components. We show analytically that diversification can occur
    with high inbreeding depression and self-pollination, but this varies with evolutionary
    pathway and level of completeness (which determines the number of potential mating
    partners in the population), and in general is more likely for lower haplotype
    number. The conditions for diversification are broader in stochastic simulations
    of finite population size. However, the number of haplotypes observed under high
    inbreeding and moderate to high self-pollination is less than that commonly observed
    in nature. Diversification was observed through pathways that maintain SI as well
    as through self-compatible intermediates. Yet the lifespan of diversified haplotypes
    was sensitive to their level of completeness. By examining diversification in
    a non-self recognition SI system, this model extends our understanding of the
    evolution and maintenance of haplotype diversity observed in a self recognition
    system common in flowering plants.'
article_processing_charge: No
article_type: original
author:
- first_name: Katarina
  full_name: Bodova, Katarina
  id: 2BA24EA0-F248-11E8-B48F-1D18A9856A87
  last_name: Bodova
  orcid: 0000-0002-7214-0171
- first_name: Tadeas
  full_name: Priklopil, Tadeas
  id: 3C869AA0-F248-11E8-B48F-1D18A9856A87
  last_name: Priklopil
- first_name: David
  full_name: Field, David
  id: 419049E2-F248-11E8-B48F-1D18A9856A87
  last_name: Field
  orcid: 0000-0002-4014-8478
- first_name: Nicholas H
  full_name: Barton, Nicholas H
  id: 4880FE40-F248-11E8-B48F-1D18A9856A87
  last_name: Barton
  orcid: 0000-0002-8548-5240
- first_name: Melinda
  full_name: Pickup, Melinda
  id: 2C78037E-F248-11E8-B48F-1D18A9856A87
  last_name: Pickup
  orcid: 0000-0001-6118-0541
citation:
  ama: Bodova K, Priklopil T, Field D, Barton NH, Pickup M. Evolutionary pathways
    for the generation of new self-incompatibility haplotypes in a non-self recognition
    system. <i>Genetics</i>. 2018;209(3):861-883. doi:<a href="https://doi.org/10.1534/genetics.118.300748">10.1534/genetics.118.300748</a>
  apa: Bodova, K., Priklopil, T., Field, D., Barton, N. H., &#38; Pickup, M. (2018).
    Evolutionary pathways for the generation of new self-incompatibility haplotypes
    in a non-self recognition system. <i>Genetics</i>. Genetics Society of America.
    <a href="https://doi.org/10.1534/genetics.118.300748">https://doi.org/10.1534/genetics.118.300748</a>
  chicago: Bodova, Katarina, Tadeas Priklopil, David Field, Nicholas H Barton, and
    Melinda Pickup. “Evolutionary Pathways for the Generation of New Self-Incompatibility
    Haplotypes in a Non-Self Recognition System.” <i>Genetics</i>. Genetics Society
    of America, 2018. <a href="https://doi.org/10.1534/genetics.118.300748">https://doi.org/10.1534/genetics.118.300748</a>.
  ieee: K. Bodova, T. Priklopil, D. Field, N. H. Barton, and M. Pickup, “Evolutionary
    pathways for the generation of new self-incompatibility haplotypes in a non-self
    recognition system,” <i>Genetics</i>, vol. 209, no. 3. Genetics Society of America,
    pp. 861–883, 2018.
  ista: Bodova K, Priklopil T, Field D, Barton NH, Pickup M. 2018. Evolutionary pathways
    for the generation of new self-incompatibility haplotypes in a non-self recognition
    system. Genetics. 209(3), 861–883.
  mla: Bodova, Katarina, et al. “Evolutionary Pathways for the Generation of New Self-Incompatibility
    Haplotypes in a Non-Self Recognition System.” <i>Genetics</i>, vol. 209, no. 3,
    Genetics Society of America, 2018, pp. 861–83, doi:<a href="https://doi.org/10.1534/genetics.118.300748">10.1534/genetics.118.300748</a>.
  short: K. Bodova, T. Priklopil, D. Field, N.H. Barton, M. Pickup, Genetics 209 (2018)
    861–883.
date_created: 2018-12-11T11:45:47Z
date_published: 2018-07-01T00:00:00Z
date_updated: 2025-05-28T11:42:44Z
day: '01'
department:
- _id: NiBa
- _id: GaTk
doi: 10.1534/genetics.118.300748
ec_funded: 1
external_id:
  isi:
  - '000437171700017'
intvolume: '       209'
isi: 1
issue: '3'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://www.biorxiv.org/node/80098.abstract
month: '07'
oa: 1
oa_version: Preprint
page: 861-883
project:
- _id: 25B36484-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '329960'
  name: Mating system and the evolutionary dynamics of hybrid zones
- _id: 25B07788-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '250152'
  name: Limits to selection in biology and in evolutionary computation
- _id: 25681D80-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '291734'
  name: International IST Postdoc Fellowship Programme
publication: Genetics
publication_status: published
publisher: Genetics Society of America
quality_controlled: '1'
related_material:
  link:
  - description: News on IST Homepage
    relation: press_release
    url: https://ist.ac.at/en/news/recognizing-others-but-not-yourself-new-insights-into-the-evolution-of-plant-mating/
  record:
  - id: '9813'
    relation: research_data
    status: public
scopus_import: '1'
status: public
title: Evolutionary pathways for the generation of new self-incompatibility haplotypes
  in a non-self recognition system
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 209
year: '2018'
...
---
_id: '317'
abstract:
- lang: eng
  text: We replace the established aluminium gates for the formation of quantum dots
    in silicon with gates made from palladium. We study the morphology of both aluminium
    and palladium gates with transmission electron microscopy. The native aluminium
    oxide is found to be formed all around the aluminium gates, which could lead to
    the formation of unintentional dots. Therefore, we report on a novel fabrication
    route that replaces aluminium and its native oxide by palladium with atomic-layer-deposition-grown
    aluminium oxide. Using this approach, we show the formation of low-disorder gate-defined
    quantum dots, which are reproducibly fabricated. Furthermore, palladium enables
    us to further shrink the gate design, allowing us to perform electron transport
    measurements in the few-electron regime in devices comprising only two gate layers,
    a major technological advancement. It remains to be seen, whether the introduction
    of palladium gates can improve the excellent results on electron and nuclear spin
    qubits defined with an aluminium gate stack.
article_number: '5690'
article_processing_charge: No
author:
- first_name: Matthias
  full_name: Brauns, Matthias
  id: 33F94E3C-F248-11E8-B48F-1D18A9856A87
  last_name: Brauns
- first_name: Sergey
  full_name: Amitonov, Sergey
  last_name: Amitonov
- first_name: Paul
  full_name: Spruijtenburg, Paul
  last_name: Spruijtenburg
- first_name: Floris
  full_name: Zwanenburg, Floris
  last_name: Zwanenburg
citation:
  ama: Brauns M, Amitonov S, Spruijtenburg P, Zwanenburg F. Palladium gates for reproducible
    quantum dots in silicon. <i>Scientific Reports</i>. 2018;8(1). doi:<a href="https://doi.org/10.1038/s41598-018-24004-y">10.1038/s41598-018-24004-y</a>
  apa: Brauns, M., Amitonov, S., Spruijtenburg, P., &#38; Zwanenburg, F. (2018). Palladium
    gates for reproducible quantum dots in silicon. <i>Scientific Reports</i>. Nature
    Publishing Group. <a href="https://doi.org/10.1038/s41598-018-24004-y">https://doi.org/10.1038/s41598-018-24004-y</a>
  chicago: Brauns, Matthias, Sergey Amitonov, Paul Spruijtenburg, and Floris Zwanenburg.
    “Palladium Gates for Reproducible Quantum Dots in Silicon.” <i>Scientific Reports</i>.
    Nature Publishing Group, 2018. <a href="https://doi.org/10.1038/s41598-018-24004-y">https://doi.org/10.1038/s41598-018-24004-y</a>.
  ieee: M. Brauns, S. Amitonov, P. Spruijtenburg, and F. Zwanenburg, “Palladium gates
    for reproducible quantum dots in silicon,” <i>Scientific Reports</i>, vol. 8,
    no. 1. Nature Publishing Group, 2018.
  ista: Brauns M, Amitonov S, Spruijtenburg P, Zwanenburg F. 2018. Palladium gates
    for reproducible quantum dots in silicon. Scientific Reports. 8(1), 5690.
  mla: Brauns, Matthias, et al. “Palladium Gates for Reproducible Quantum Dots in
    Silicon.” <i>Scientific Reports</i>, vol. 8, no. 1, 5690, Nature Publishing Group,
    2018, doi:<a href="https://doi.org/10.1038/s41598-018-24004-y">10.1038/s41598-018-24004-y</a>.
  short: M. Brauns, S. Amitonov, P. Spruijtenburg, F. Zwanenburg, Scientific Reports
    8 (2018).
date_created: 2018-12-11T11:45:47Z
date_published: 2018-04-09T00:00:00Z
date_updated: 2023-09-13T09:38:00Z
day: '09'
ddc:
- '539'
department:
- _id: GeKa
doi: 10.1038/s41598-018-24004-y
external_id:
  isi:
  - '000429404300013'
file:
- access_level: open_access
  checksum: 20af238ca4ba6491b77270be8d826bf5
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T10:17:04Z
  date_updated: 2020-07-14T12:46:02Z
  file_id: '5256'
  file_name: IST-2018-1016-v1+1_2018_Brauns_Palladium_gates.pdf
  file_size: 1850530
  relation: main_file
file_date_updated: 2020-07-14T12:46:02Z
has_accepted_license: '1'
intvolume: '         8'
isi: 1
issue: '1'
language:
- iso: eng
month: '04'
oa: 1
oa_version: Published Version
publication: Scientific Reports
publication_status: published
publisher: Nature Publishing Group
publist_id: '7548'
pubrep_id: '1016'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Palladium gates for reproducible quantum dots in silicon
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: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 8
year: '2018'
...
---
_id: '318'
abstract:
- lang: eng
  text: The insect’s fat body combines metabolic and immunological functions. In this
    issue of Developmental Cell, Franz et al. (2018) show that in Drosophila, cells
    of the fat body are not static, but can actively “swim” toward sites of epithelial
    injury, where they physically clog the wound and locally secrete antimicrobial
    peptides.
acknowledgement: Short Survey
article_processing_charge: No
author:
- first_name: Alessandra M
  full_name: Casano, Alessandra M
  id: 3DBA3F4E-F248-11E8-B48F-1D18A9856A87
  last_name: Casano
  orcid: 0000-0002-6009-6804
- first_name: Michael K
  full_name: Sixt, Michael K
  id: 41E9FBEA-F248-11E8-B48F-1D18A9856A87
  last_name: Sixt
  orcid: 0000-0002-6620-9179
citation:
  ama: Casano AM, Sixt MK. A fat lot of good for wound healing. <i>Developmental Cell</i>.
    2018;44(4):405-406. doi:<a href="https://doi.org/10.1016/j.devcel.2018.02.009">10.1016/j.devcel.2018.02.009</a>
  apa: Casano, A. M., &#38; Sixt, M. K. (2018). A fat lot of good for wound healing.
    <i>Developmental Cell</i>. Cell Press. <a href="https://doi.org/10.1016/j.devcel.2018.02.009">https://doi.org/10.1016/j.devcel.2018.02.009</a>
  chicago: Casano, Alessandra M, and Michael K Sixt. “A Fat Lot of Good for Wound
    Healing.” <i>Developmental Cell</i>. Cell Press, 2018. <a href="https://doi.org/10.1016/j.devcel.2018.02.009">https://doi.org/10.1016/j.devcel.2018.02.009</a>.
  ieee: A. M. Casano and M. K. Sixt, “A fat lot of good for wound healing,” <i>Developmental
    Cell</i>, vol. 44, no. 4. Cell Press, pp. 405–406, 2018.
  ista: Casano AM, Sixt MK. 2018. A fat lot of good for wound healing. Developmental
    Cell. 44(4), 405–406.
  mla: Casano, Alessandra M., and Michael K. Sixt. “A Fat Lot of Good for Wound Healing.”
    <i>Developmental Cell</i>, vol. 44, no. 4, Cell Press, 2018, pp. 405–06, doi:<a
    href="https://doi.org/10.1016/j.devcel.2018.02.009">10.1016/j.devcel.2018.02.009</a>.
  short: A.M. Casano, M.K. Sixt, Developmental Cell 44 (2018) 405–406.
date_created: 2018-12-11T11:45:47Z
date_published: 2018-02-26T00:00:00Z
date_updated: 2023-09-08T11:42:28Z
day: '26'
department:
- _id: MiSi
doi: 10.1016/j.devcel.2018.02.009
external_id:
  isi:
  - '000426150700002'
  pmid:
  - '29486189'
intvolume: '        44'
isi: 1
issue: '4'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://www.ncbi.nlm.nih.gov/pubmed/29486189
month: '02'
oa: 1
oa_version: Published Version
page: 405 - 406
pmid: 1
publication: Developmental Cell
publication_status: published
publisher: Cell Press
publist_id: '7547'
quality_controlled: '1'
scopus_import: '1'
status: public
title: A fat lot of good for wound healing
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 44
year: '2018'
...
---
_id: '32'
abstract:
- lang: eng
  text: The functional role of AMPA receptor (AMPAR)-mediated synaptic signaling between
    neurons and oligodendrocyte precursor cells (OPCs) remains enigmatic. We modified
    the properties of AMPARs at axon-OPC synapses in the mouse corpus callosum in
    vivo during the peak of myelination by targeting the GluA2 subunit. Expression
    of the unedited (Ca2+ permeable) or the pore-dead GluA2 subunit of AMPARs triggered
    proliferation of OPCs and reduced their differentiation into oligodendrocytes.
    Expression of the cytoplasmic C-terminal (GluA2(813-862)) of the GluA2 subunit
    (C-tail), a modification designed to affect the interaction between GluA2 and
    AMPAR-binding proteins and to perturb trafficking of GluA2-containing AMPARs,
    decreased the differentiation of OPCs without affecting their proliferation. These
    findings suggest that ionotropic and non-ionotropic properties of AMPARs in OPCs,
    as well as specific aspects of AMPAR-mediated signaling at axon-OPC synapses in
    the mouse corpus callosum, are important for balancing the response of OPCs to
    proliferation and differentiation cues. In the brain, oligodendrocyte precursor
    cells (OPCs) receive glutamatergic AMPA-receptor-mediated synaptic input from
    neurons. Chen et al. show that modifying AMPA-receptor properties at axon-OPC
    synapses alters proliferation and differentiation of OPCs. This expands the traditional
    view of synaptic transmission by suggesting neurons also use synapses to modulate
    behavior of glia.
acknowledgement: This work was supported by Deutsche Forschungsgemeinschaft (DFG)
  grant KU2569/1-1 (to M.K.); DFG project EXC307Centre for Integrative Neuroscience
  (CIN), including grant Pool Project 2011-12 (jointly to M.K. and I.E.); and the
  Charitable Hertie Foundation (to I.E.). CIN is an Excellence Cluster funded by the
  DFG within the framework of the Excellence Initiative for 2008–2018. M.K. is supported
  by the Tistou & Charlotte Kerstan Foundation.
article_processing_charge: No
author:
- first_name: Ting
  full_name: Chen, Ting
  last_name: Chen
- first_name: Bartosz
  full_name: Kula, Bartosz
  last_name: Kula
- first_name: Balint
  full_name: Nagy, Balint
  id: 30F830CE-02D1-11E9-9BAA-DAF4881429F2
  last_name: Nagy
  orcid: 0000-0002-4002-4686
- first_name: Ruxandra
  full_name: Barzan, Ruxandra
  last_name: Barzan
- first_name: Andrea
  full_name: Gall, Andrea
  last_name: Gall
- first_name: Ingrid
  full_name: Ehrlich, Ingrid
  last_name: Ehrlich
- first_name: Maria
  full_name: Kukley, Maria
  last_name: Kukley
citation:
  ama: Chen T, Kula B, Nagy B, et al. In Vivo regulation of Oligodendrocyte processor
    cell proliferation and differentiation by the AMPA-receptor Subunit GluA2. <i>Cell
    Reports</i>. 2018;25(4):852-861.e7. doi:<a href="https://doi.org/10.1016/j.celrep.2018.09.066">10.1016/j.celrep.2018.09.066</a>
  apa: Chen, T., Kula, B., Nagy, B., Barzan, R., Gall, A., Ehrlich, I., &#38; Kukley,
    M. (2018). In Vivo regulation of Oligodendrocyte processor cell proliferation
    and differentiation by the AMPA-receptor Subunit GluA2. <i>Cell Reports</i>. Elsevier.
    <a href="https://doi.org/10.1016/j.celrep.2018.09.066">https://doi.org/10.1016/j.celrep.2018.09.066</a>
  chicago: Chen, Ting, Bartosz Kula, Balint Nagy, Ruxandra Barzan, Andrea Gall, Ingrid
    Ehrlich, and Maria Kukley. “In Vivo Regulation of Oligodendrocyte Processor Cell
    Proliferation and Differentiation by the AMPA-Receptor Subunit GluA2.” <i>Cell
    Reports</i>. Elsevier, 2018. <a href="https://doi.org/10.1016/j.celrep.2018.09.066">https://doi.org/10.1016/j.celrep.2018.09.066</a>.
  ieee: T. Chen <i>et al.</i>, “In Vivo regulation of Oligodendrocyte processor cell
    proliferation and differentiation by the AMPA-receptor Subunit GluA2,” <i>Cell
    Reports</i>, vol. 25, no. 4. Elsevier, p. 852–861.e7, 2018.
  ista: Chen T, Kula B, Nagy B, Barzan R, Gall A, Ehrlich I, Kukley M. 2018. In Vivo
    regulation of Oligodendrocyte processor cell proliferation and differentiation
    by the AMPA-receptor Subunit GluA2. Cell Reports. 25(4), 852–861.e7.
  mla: Chen, Ting, et al. “In Vivo Regulation of Oligodendrocyte Processor Cell Proliferation
    and Differentiation by the AMPA-Receptor Subunit GluA2.” <i>Cell Reports</i>,
    vol. 25, no. 4, Elsevier, 2018, p. 852–861.e7, doi:<a href="https://doi.org/10.1016/j.celrep.2018.09.066">10.1016/j.celrep.2018.09.066</a>.
  short: T. Chen, B. Kula, B. Nagy, R. Barzan, A. Gall, I. Ehrlich, M. Kukley, Cell
    Reports 25 (2018) 852–861.e7.
date_created: 2018-12-11T11:44:16Z
date_published: 2018-10-23T00:00:00Z
date_updated: 2023-09-11T14:13:32Z
day: '23'
ddc:
- '570'
department:
- _id: SaSi
doi: 10.1016/j.celrep.2018.09.066
external_id:
  isi:
  - '000448219500005'
file:
- access_level: open_access
  checksum: d9f74277fd57176e04732707d575cf08
  content_type: application/pdf
  creator: dernst
  date_created: 2018-12-17T12:42:57Z
  date_updated: 2020-07-14T12:46:03Z
  file_id: '5703'
  file_name: 2018_CellReports_Chen.pdf
  file_size: 4461997
  relation: main_file
file_date_updated: 2020-07-14T12:46:03Z
has_accepted_license: '1'
intvolume: '        25'
isi: 1
issue: '4'
language:
- iso: eng
license: https://creativecommons.org/licenses/by-nc-nd/4.0/
month: '10'
oa: 1
oa_version: Published Version
page: 852 - 861.e7
publication: Cell Reports
publication_status: published
publisher: Elsevier
publist_id: '8023'
quality_controlled: '1'
scopus_import: '1'
status: public
title: In Vivo regulation of Oligodendrocyte processor cell proliferation and differentiation
  by the AMPA-receptor Subunit GluA2
tmp:
  image: /images/cc_by_nc_nd.png
  legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode
  name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
    (CC BY-NC-ND 4.0)
  short: CC BY-NC-ND (4.0)
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 25
year: '2018'
...
---
_id: '320'
abstract:
- lang: eng
  text: 'Fast-spiking, parvalbumin-expressing GABAergic interneurons (PV+-BCs) express
    a complex machinery of rapid signaling mechanisms, including specialized voltage-gated
    ion channels to generate brief action potentials (APs). However, short APs are
    associated with overlapping Na+ and K+ fluxes and are therefore energetically
    expensive. How the potentially vicious combination of high AP frequency and inefficient
    spike generation can be reconciled with limited energy supply is presently unclear.
    To address this question, we performed direct recordings from the PV+-BC axon,
    the subcellular structure where active conductances for AP initiation and propagation
    are located. Surprisingly, the energy required for the AP was, on average, only
    ∼1.6 times the theoretical minimum. High energy efficiency emerged from the combination
    of fast inactivation of Na+ channels and delayed activation of Kv3-type K+ channels,
    which minimized ion flux overlap during APs. Thus, the complementary tuning of
    axonal Na+ and K+ channel gating optimizes both fast signaling properties and
    metabolic efficiency. Hu et al. demonstrate that action potentials in parvalbumin-expressing
    GABAergic interneuron axons are energetically efficient, which is highly unexpected
    given their brief duration. High energy efficiency emerges from the combination
    of fast inactivation of voltage-gated Na+ channels and delayed activation of Kv3
    channels in the axon. '
article_processing_charge: Yes (in subscription journal)
author:
- first_name: Hua
  full_name: Hu, Hua
  id: 4AC0145C-F248-11E8-B48F-1D18A9856A87
  last_name: Hu
- first_name: Fabian
  full_name: Roth, Fabian
  last_name: Roth
- first_name: David H
  full_name: Vandael, David H
  id: 3AE48E0A-F248-11E8-B48F-1D18A9856A87
  last_name: Vandael
  orcid: 0000-0001-7577-1676
- first_name: Peter M
  full_name: Jonas, Peter M
  id: 353C1B58-F248-11E8-B48F-1D18A9856A87
  last_name: Jonas
  orcid: 0000-0001-5001-4804
citation:
  ama: Hu H, Roth F, Vandael DH, Jonas PM. Complementary tuning of Na+ and K+ channel
    gating underlies fast and energy-efficient action potentials in GABAergic interneuron
    axons. <i>Neuron</i>. 2018;98(1):156-165. doi:<a href="https://doi.org/10.1016/j.neuron.2018.02.024">10.1016/j.neuron.2018.02.024</a>
  apa: Hu, H., Roth, F., Vandael, D. H., &#38; Jonas, P. M. (2018). Complementary
    tuning of Na+ and K+ channel gating underlies fast and energy-efficient action
    potentials in GABAergic interneuron axons. <i>Neuron</i>. Elsevier. <a href="https://doi.org/10.1016/j.neuron.2018.02.024">https://doi.org/10.1016/j.neuron.2018.02.024</a>
  chicago: Hu, Hua, Fabian Roth, David H Vandael, and Peter M Jonas. “Complementary
    Tuning of Na+ and K+ Channel Gating Underlies Fast and Energy-Efficient Action
    Potentials in GABAergic Interneuron Axons.” <i>Neuron</i>. Elsevier, 2018. <a
    href="https://doi.org/10.1016/j.neuron.2018.02.024">https://doi.org/10.1016/j.neuron.2018.02.024</a>.
  ieee: H. Hu, F. Roth, D. H. Vandael, and P. M. Jonas, “Complementary tuning of Na+
    and K+ channel gating underlies fast and energy-efficient action potentials in
    GABAergic interneuron axons,” <i>Neuron</i>, vol. 98, no. 1. Elsevier, pp. 156–165,
    2018.
  ista: Hu H, Roth F, Vandael DH, Jonas PM. 2018. Complementary tuning of Na+ and
    K+ channel gating underlies fast and energy-efficient action potentials in GABAergic
    interneuron axons. Neuron. 98(1), 156–165.
  mla: Hu, Hua, et al. “Complementary Tuning of Na+ and K+ Channel Gating Underlies
    Fast and Energy-Efficient Action Potentials in GABAergic Interneuron Axons.” <i>Neuron</i>,
    vol. 98, no. 1, Elsevier, 2018, pp. 156–65, doi:<a href="https://doi.org/10.1016/j.neuron.2018.02.024">10.1016/j.neuron.2018.02.024</a>.
  short: H. Hu, F. Roth, D.H. Vandael, P.M. Jonas, Neuron 98 (2018) 156–165.
date_created: 2018-12-11T11:45:48Z
date_published: 2018-04-04T00:00:00Z
date_updated: 2023-09-11T12:45:10Z
day: '04'
ddc:
- '570'
department:
- _id: PeJo
doi: 10.1016/j.neuron.2018.02.024
ec_funded: 1
external_id:
  isi:
  - '000429192100016'
file:
- access_level: open_access
  checksum: 76070f3729f9c603e1080d0151aa2b11
  content_type: application/pdf
  creator: dernst
  date_created: 2018-12-17T10:37:50Z
  date_updated: 2020-07-14T12:46:03Z
  file_id: '5690'
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  file_size: 3180444
  relation: main_file
file_date_updated: 2020-07-14T12:46:03Z
has_accepted_license: '1'
intvolume: '        98'
isi: 1
issue: '1'
language:
- iso: eng
month: '04'
oa: 1
oa_version: Published Version
page: 156 - 165
project:
- _id: 25C0F108-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '268548'
  name: Nanophysiology of fast-spiking, parvalbumin-expressing GABAergic interneurons
- _id: 25B7EB9E-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '692692'
  name: Biophysics and circuit function of a giant cortical glumatergic synapse
- _id: 25C26B1E-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: P24909-B24
  name: Mechanisms of transmitter release at GABAergic synapses
- _id: 25C5A090-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: Z00312
  name: The Wittgenstein Prize
publication: Neuron
publication_status: published
publisher: Elsevier
publist_id: '7545'
quality_controlled: '1'
related_material:
  link:
  - description: News on IST Homepage
    relation: press_release
    url: https://ist.ac.at/en/news/a-certain-type-of-neurons-is-more-energy-efficient-than-previously-assumed/
scopus_import: '1'
status: public
title: Complementary tuning of Na+ and K+ channel gating underlies fast and energy-efficient
  action potentials in GABAergic interneuron axons
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: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 98
year: '2018'
...
---
_id: '321'
abstract:
- lang: eng
  text: The twelve papers in this special section focus on learning systems with shared
    information for computer vision and multimedia communication analysis. In the
    real world, a realistic setting for computer vision or multimedia recognition
    problems is that we have some classes containing lots of training data and many
    classes containing a small amount of training data. Therefore, how to use frequent
    classes to help learning rare classes for which it is harder to collect the training
    data is an open question. Learning with shared information is an emerging topic
    in machine learning, computer vision and multimedia analysis. There are different
    levels of components that can be shared during concept modeling and machine learning
    stages, such as sharing generic object parts, sharing attributes, sharing transformations,
    sharing regularization parameters and sharing training examples, etc. Regarding
    the specific methods, multi-task learning, transfer learning and deep learning
    can be seen as using different strategies to share information. These learning
    with shared information methods are very effective in solving real-world large-scale
    problems.
article_processing_charge: No
article_type: original
author:
- first_name: Trevor
  full_name: Darrell, Trevor
  last_name: Darrell
- first_name: Christoph
  full_name: Lampert, Christoph
  id: 40C20FD2-F248-11E8-B48F-1D18A9856A87
  last_name: Lampert
  orcid: 0000-0001-8622-7887
- first_name: Nico
  full_name: Sebe, Nico
  last_name: Sebe
- first_name: Ying
  full_name: Wu, Ying
  last_name: Wu
- first_name: Yan
  full_name: Yan, Yan
  last_name: Yan
citation:
  ama: Darrell T, Lampert C, Sebe N, Wu Y, Yan Y. Guest editors’ introduction to the
    special section on learning with Shared information for computer vision and multimedia
    analysis. <i>IEEE Transactions on Pattern Analysis and Machine Intelligence</i>.
    2018;40(5):1029-1031. doi:<a href="https://doi.org/10.1109/TPAMI.2018.2804998">10.1109/TPAMI.2018.2804998</a>
  apa: Darrell, T., Lampert, C., Sebe, N., Wu, Y., &#38; Yan, Y. (2018). Guest editors’
    introduction to the special section on learning with Shared information for computer
    vision and multimedia analysis. <i>IEEE Transactions on Pattern Analysis and Machine
    Intelligence</i>. IEEE. <a href="https://doi.org/10.1109/TPAMI.2018.2804998">https://doi.org/10.1109/TPAMI.2018.2804998</a>
  chicago: Darrell, Trevor, Christoph Lampert, Nico Sebe, Ying Wu, and Yan Yan. “Guest
    Editors’ Introduction to the Special Section on Learning with Shared Information
    for Computer Vision and Multimedia Analysis.” <i>IEEE Transactions on Pattern
    Analysis and Machine Intelligence</i>. IEEE, 2018. <a href="https://doi.org/10.1109/TPAMI.2018.2804998">https://doi.org/10.1109/TPAMI.2018.2804998</a>.
  ieee: T. Darrell, C. Lampert, N. Sebe, Y. Wu, and Y. Yan, “Guest editors’ introduction
    to the special section on learning with Shared information for computer vision
    and multimedia analysis,” <i>IEEE Transactions on Pattern Analysis and Machine
    Intelligence</i>, vol. 40, no. 5. IEEE, pp. 1029–1031, 2018.
  ista: Darrell T, Lampert C, Sebe N, Wu Y, Yan Y. 2018. Guest editors’ introduction
    to the special section on learning with Shared information for computer vision
    and multimedia analysis. IEEE Transactions on Pattern Analysis and Machine Intelligence.
    40(5), 1029–1031.
  mla: Darrell, Trevor, et al. “Guest Editors’ Introduction to the Special Section
    on Learning with Shared Information for Computer Vision and Multimedia Analysis.”
    <i>IEEE Transactions on Pattern Analysis and Machine Intelligence</i>, vol. 40,
    no. 5, IEEE, 2018, pp. 1029–31, doi:<a href="https://doi.org/10.1109/TPAMI.2018.2804998">10.1109/TPAMI.2018.2804998</a>.
  short: T. Darrell, C. Lampert, N. Sebe, Y. Wu, Y. Yan, IEEE Transactions on Pattern
    Analysis and Machine Intelligence 40 (2018) 1029–1031.
date_created: 2018-12-11T11:45:48Z
date_published: 2018-05-01T00:00:00Z
date_updated: 2023-09-11T14:07:54Z
day: '01'
ddc:
- '000'
department:
- _id: ChLa
doi: 10.1109/TPAMI.2018.2804998
external_id:
  isi:
  - '000428901200001'
file:
- access_level: open_access
  checksum: b19c75da06faf3291a3ca47dfa50ef63
  content_type: application/pdf
  creator: dernst
  date_created: 2020-05-14T12:50:48Z
  date_updated: 2020-07-14T12:46:03Z
  file_id: '7835'
  file_name: 2018_IEEE_Darrell.pdf
  file_size: 141724
  relation: main_file
file_date_updated: 2020-07-14T12:46:03Z
has_accepted_license: '1'
intvolume: '        40'
isi: 1
issue: '5'
language:
- iso: eng
month: '05'
oa: 1
oa_version: Published Version
page: 1029 - 1031
publication: IEEE Transactions on Pattern Analysis and Machine Intelligence
publication_status: published
publisher: IEEE
publist_id: '7544'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Guest editors' introduction to the special section on learning with Shared
  information for computer vision and multimedia analysis
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 40
year: '2018'
...
---
_id: '322'
abstract:
- lang: eng
  text: We construct quantizations of multiplicative hypertoric varieties using an
    algebra of q-difference operators on affine space, where q is a root of unity
    in C. The quantization defines a matrix bundle (i.e. Azumaya algebra) over the
    multiplicative hypertoric variety and admits an explicit finite étale splitting.
    The global sections of this Azumaya algebra is a hypertoric quantum group, and
    we prove a localization theorem. We introduce a general framework of Frobenius
    quantum moment maps and their Hamiltonian reductions; our results shed light on
    an instance of this framework.
acknowledgement: "National Science Foundation: Graduate Research Fellowship and grant
  No.0932078000; ERC Advanced Grant “Arithmetic and Physics of Higgs moduli spaces”
  No. 320593 \r\nThe author is grateful to David Jordan for suggesting this project
  and providing guidance throughout, particularly for the formulation of Frobenius
  quantum moment maps and key ideas in the proofs of Theorems 3.12 and 4.8. Special
  thanks to David Ben-Zvi (the author's PhD advisor) for numerous discussions and
  constant encouragement, and for suggesting the term ‘hypertoric quantum group.’
  Many results appearing in the current paper were proven independently by Nicholas
  Cooney; the author is grateful to Nicholas for sharing his insight on various topics,
  including Proposition 3.8. The author also thanks Nicholas Proudfoot for relating
  the definition of multiplicative hypertoric varieties, as well as the content of
  Remark 2.14. The author also benefited immensely from the close reading and detailed
  comments of an anonymous referee, and from conversations with Justin Hilburn, Kobi
  Kremnitzer, Michael McBreen, Tom Nevins, Travis Schedler, and Ben Webster. \r\n\r\n\r\n\r\n"
article_processing_charge: No
arxiv: 1
author:
- first_name: Iordan V
  full_name: Ganev, Iordan V
  id: 447491B8-F248-11E8-B48F-1D18A9856A87
  last_name: Ganev
citation:
  ama: Ganev IV. Quantizations of multiplicative hypertoric varieties at a root of
    unity. <i>Journal of Algebra</i>. 2018;506:92-128. doi:<a href="https://doi.org/10.1016/j.jalgebra.2018.03.015">10.1016/j.jalgebra.2018.03.015</a>
  apa: Ganev, I. V. (2018). Quantizations of multiplicative hypertoric varieties at
    a root of unity. <i>Journal of Algebra</i>. World Scientific Publishing. <a href="https://doi.org/10.1016/j.jalgebra.2018.03.015">https://doi.org/10.1016/j.jalgebra.2018.03.015</a>
  chicago: Ganev, Iordan V. “Quantizations of Multiplicative Hypertoric Varieties
    at a Root of Unity.” <i>Journal of Algebra</i>. World Scientific Publishing, 2018.
    <a href="https://doi.org/10.1016/j.jalgebra.2018.03.015">https://doi.org/10.1016/j.jalgebra.2018.03.015</a>.
  ieee: I. V. Ganev, “Quantizations of multiplicative hypertoric varieties at a root
    of unity,” <i>Journal of Algebra</i>, vol. 506. World Scientific Publishing, pp.
    92–128, 2018.
  ista: Ganev IV. 2018. Quantizations of multiplicative hypertoric varieties at a
    root of unity. Journal of Algebra. 506, 92–128.
  mla: Ganev, Iordan V. “Quantizations of Multiplicative Hypertoric Varieties at a
    Root of Unity.” <i>Journal of Algebra</i>, vol. 506, World Scientific Publishing,
    2018, pp. 92–128, doi:<a href="https://doi.org/10.1016/j.jalgebra.2018.03.015">10.1016/j.jalgebra.2018.03.015</a>.
  short: I.V. Ganev, Journal of Algebra 506 (2018) 92–128.
date_created: 2018-12-11T11:45:49Z
date_published: 2018-07-15T00:00:00Z
date_updated: 2023-09-15T12:08:38Z
day: '15'
department:
- _id: TaHa
doi: 10.1016/j.jalgebra.2018.03.015
ec_funded: 1
external_id:
  arxiv:
  - '1412.7211'
  isi:
  - '000433270600005'
intvolume: '       506'
isi: 1
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://arxiv.org/abs/1412.7211
month: '07'
oa: 1
oa_version: Preprint
page: 92 - 128
project:
- _id: 25E549F4-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '320593'
  name: Arithmetic and physics of Higgs moduli spaces
publication: Journal of Algebra
publication_status: published
publisher: World Scientific Publishing
publist_id: '7543'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Quantizations of multiplicative hypertoric varieties at a root of unity
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 506
year: '2018'
...
---
_id: '323'
abstract:
- lang: eng
  text: 'In the here presented thesis, we explore the role of branched actin networks
    in cell migration and antigen presentation, the two most relevant processes in
    dendritic cell biology. Branched actin networks construct lamellipodial protrusions
    at the leading edge of migrating cells. These are typically seen as adhesive structures,
    which mediate force transduction to the extracellular matrix that leads to forward
    locomotion. We ablated Arp2/3 nucleation promoting factor WAVE in DCs and found
    that the resulting cells lack lamellipodial protrusions. Instead, depending on
    the maturation state, one or multiple filopodia were formed. By challenging these
    cells in a variety of migration assays we found that lamellipodial protrusions
    are dispensable for the locomotion of leukocytes and actually dampen the speed
    of migration. However, lamellipodia are critically required to negotiate complex
    environments that DCs experience while they travel to the next draining lymph
    node. Taken together our results suggest that leukocyte lamellipodia have rather
    a sensory- than a force transducing function. Furthermore, we show for the first
    time structure and dynamics of dendritic cell F-actin at the immunological synapse
    with naïve T cells. Dendritic cell F-actin appears as dynamic foci that are nucleated
    by the Arp2/3 complex. WAVE ablated dendritic cells show increased membrane tension,
    leading to an altered ultrastructure of the immunological synapse and severe T
    cell priming defects. These results point towards a previously unappreciated role
    of the cellular mechanics of dendritic cells in T cell activation. Additionally,
    we present a novel cell culture based system for the differentiation of dendritic
    cells from conditionally immortalized hematopoietic precursors. These precursor
    cells are genetically tractable via the CRISPR/Cas9 system while they retain their
    ability to differentiate into highly migratory dendritic cells and other immune
    cells. This will foster the study of all aspects of dendritic cell biology and
    beyond. '
acknowledged_ssus:
- _id: NanoFab
- _id: Bio
- _id: PreCl
- _id: EM-Fac
acknowledgement: "First of all I would like to thank Michael Sixt for giving me the
  opportunity to work in \r\nhis group and for his support throughout the years. He
  is a truly inspiring person and \r\nthe  best  boss  one  can  imagine.  I  would
  \ also  like  to  thank  all  current  and  past \r\nmembers of the Sixt group for
  their help and the great working atmosphere in the lab. \r\nIt is a true privilege
  to work with such a bright, funny and friendly group of people and \r\nI’m  proud
  \ that  I  could  be  part  of  it.  Furthermore,  I  would  like  to  say  ‘thank
  \ you’  to Daria Siekhaus for all the meetings and discussion we had throughout
  the years \r\nand to  Federica  Benvenuti  for  being  part  of  my  committee.
  \ I  am  also  grateful  to  Jack \r\nMerrin  in  the  nanofabrication  facility
  \ and  all  the  people  working  in  the  bioimaging-\r\n, the electron microscopy-
  and the preclinical facilities."
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Alexander F
  full_name: Leithner, Alexander F
  id: 3B1B77E4-F248-11E8-B48F-1D18A9856A87
  last_name: Leithner
  orcid: 0000-0002-1073-744X
citation:
  ama: Leithner AF. Branched actin networks in dendritic cell biology. 2018. doi:<a
    href="https://doi.org/10.15479/AT:ISTA:th_998">10.15479/AT:ISTA:th_998</a>
  apa: Leithner, A. F. (2018). <i>Branched actin networks in dendritic cell biology</i>.
    Institute of Science and Technology Austria. <a href="https://doi.org/10.15479/AT:ISTA:th_998">https://doi.org/10.15479/AT:ISTA:th_998</a>
  chicago: Leithner, Alexander F. “Branched Actin Networks in Dendritic Cell Biology.”
    Institute of Science and Technology Austria, 2018. <a href="https://doi.org/10.15479/AT:ISTA:th_998">https://doi.org/10.15479/AT:ISTA:th_998</a>.
  ieee: A. F. Leithner, “Branched actin networks in dendritic cell biology,” Institute
    of Science and Technology Austria, 2018.
  ista: Leithner AF. 2018. Branched actin networks in dendritic cell biology. Institute
    of Science and Technology Austria.
  mla: Leithner, Alexander F. <i>Branched Actin Networks in Dendritic Cell Biology</i>.
    Institute of Science and Technology Austria, 2018, doi:<a href="https://doi.org/10.15479/AT:ISTA:th_998">10.15479/AT:ISTA:th_998</a>.
  short: A.F. Leithner, Branched Actin Networks in Dendritic Cell Biology, Institute
    of Science and Technology Austria, 2018.
date_created: 2018-12-11T11:45:49Z
date_published: 2018-04-12T00:00:00Z
date_updated: 2023-09-07T12:39:44Z
day: '12'
ddc:
- '571'
- '599'
- '610'
degree_awarded: PhD
department:
- _id: MiSi
doi: 10.15479/AT:ISTA:th_998
file:
- access_level: closed
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  creator: dernst
  date_created: 2019-04-05T09:23:11Z
  date_updated: 2021-02-11T23:30:17Z
  embargo_to: open_access
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  file_name: PhD_thesis_AlexLeithner_final_version.docx
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- access_level: open_access
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  date_created: 2019-04-05T09:23:11Z
  date_updated: 2021-02-11T11:17:16Z
  embargo: 2019-04-15
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  file_name: PhD_thesis_AlexLeithner.pdf
  file_size: 66045341
  relation: main_file
file_date_updated: 2021-02-11T23:30:17Z
has_accepted_license: '1'
language:
- iso: eng
month: '04'
oa: 1
oa_version: Published Version
page: '99'
publication_identifier:
  issn:
  - 2663-337X
publication_status: published
publisher: Institute of Science and Technology Austria
publist_id: '7542'
pubrep_id: '998'
related_material:
  record:
  - id: '1321'
    relation: part_of_dissertation
    status: public
status: public
supervisor:
- first_name: Michael K
  full_name: Sixt, Michael K
  id: 41E9FBEA-F248-11E8-B48F-1D18A9856A87
  last_name: Sixt
  orcid: 0000-0002-6620-9179
title: Branched actin networks in dendritic cell biology
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: '2018'
...
---
_id: '324'
abstract:
- lang: eng
  text: Neuronal networks in the brain consist of two main types of neuron, glutamatergic
    principal neurons and GABAergic interneurons. Although these interneurons only
    represent 10–20% of the whole population, they mediate feedback and feedforward
    inhibition and are involved in the generation of high-frequency network oscillations.
    A hallmark functional property of GABAergic interneurons, especially of the parvalbumin‑expressing
    (PV+) subtypes, is the speed of signaling at their output synapse across species
    and brain regions. Several molecular and subcellular factors may underlie the
    submillisecond signaling at GABAergic synapses. Such as the selective use of P/Q
    type Ca2+ channels and the tight coupling between Ca2+ channels and Ca2+ sensors
    of exocytosis. However, whether the molecular identity of the release sensor contributes
    to these signaling properties remains unclear. Besides, these interneurons are
    mainly show depression in response to train of stimuli. How could they keep sufficient
    release to control the activity of postsynaptic principal neurons during high
    network activity, is largely elusive. For my Ph.D. work, we firstly examined the
    Ca2+ sensor of exocytosis at the GABAergic basket cell (BC) to Purkinje cell (PC)
    synapse in the cerebellum. Immunolabeling suggested that BC terminals selectively
    expressed synaptotagmin 2 (Syt2), whereas synaptotagmin 1 (Syt1) was enriched
    in excitatory terminals. Genetic elimination of Syt2 reduced action potential-evoked
    release to ~10% compared to the wild-type control, identifying Syt2 as the major
    Ca2+ sensor at BC‑PC synapses. Differential adenovirus-mediated rescue revealed
    Syt2 triggered release with shorter latency and higher temporal precision, and
    mediated faster vesicle pool replenishment than Syt1. Furthermore, deletion of
    Syt2 severely reduced and delayed disynaptic inhibition following parallel fiber
    stimulation. Thus, the selective use of Syt2 as the release sensor at BC–PC synapse
    ensures fast feedforward inhibition in cerebellar microcircuits. Additionally,
    we tested the function of another synaptotagmin member, Syt7, for inhibitory synaptic
    transmission at the BC–PC synapse. Syt7 is thought to be a Ca2+ sensor that mediates
    asynchronous transmitter release and facilitation at synapses. However, it is
    strongly expressed in fast-spiking, PV+ GABAergic interneurons and the output
    synapses of these neurons produce only minimal asynchronous release and show depression
    rather than facilitation. How could Syt7, a facilitation sensor, contribute to
    the depressed inhibitory synaptic transmission needs to be further investigated
    and understood. Our results indicated that at the BC–PC synapse, Syt7 contributes
    to asynchronous release, pool replenishment and facilitation. In combination,
    these three effects ensure efficient transmitter release during high‑frequency
    activity and guarantee frequency independence of inhibition. Taken together, our
    results confirmed that Syt2, which has the fastest kinetic properties among all
    synaptotagmin members, is mainly used by the inhibitory BC‑PC synapse for synaptic
    transmission, contributing to the speed and temporal precision of transmitter
    release. Furthermore, we showed that Syt7, another highly expressed synaptotagmin
    member in the output synapses of cerebellar BCs, is used for ensuring efficient
    inhibitor synaptic transmission during high activity.
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Chong
  full_name: Chen, Chong
  id: 3DFD581A-F248-11E8-B48F-1D18A9856A87
  last_name: Chen
citation:
  ama: Chen C. Synaptotagmins ensure speed and efficiency of inhibitory neurotransmitter
    release. 2018. doi:<a href="https://doi.org/10.15479/AT:ISTA:th_997">10.15479/AT:ISTA:th_997</a>
  apa: Chen, C. (2018). <i>Synaptotagmins ensure speed and efficiency of inhibitory
    neurotransmitter release</i>. Institute of Science and Technology Austria. <a
    href="https://doi.org/10.15479/AT:ISTA:th_997">https://doi.org/10.15479/AT:ISTA:th_997</a>
  chicago: Chen, Chong. “Synaptotagmins Ensure Speed and Efficiency of Inhibitory
    Neurotransmitter Release.” Institute of Science and Technology Austria, 2018.
    <a href="https://doi.org/10.15479/AT:ISTA:th_997">https://doi.org/10.15479/AT:ISTA:th_997</a>.
  ieee: C. Chen, “Synaptotagmins ensure speed and efficiency of inhibitory neurotransmitter
    release,” Institute of Science and Technology Austria, 2018.
  ista: Chen C. 2018. Synaptotagmins ensure speed and efficiency of inhibitory neurotransmitter
    release. Institute of Science and Technology Austria.
  mla: Chen, Chong. <i>Synaptotagmins Ensure Speed and Efficiency of Inhibitory Neurotransmitter
    Release</i>. Institute of Science and Technology Austria, 2018, doi:<a href="https://doi.org/10.15479/AT:ISTA:th_997">10.15479/AT:ISTA:th_997</a>.
  short: C. Chen, Synaptotagmins Ensure Speed and Efficiency of Inhibitory Neurotransmitter
    Release, Institute of Science and Technology Austria, 2018.
date_created: 2018-12-11T11:45:49Z
date_published: 2018-03-01T00:00:00Z
date_updated: 2023-09-27T12:26:03Z
day: '01'
ddc:
- '571'
degree_awarded: PhD
department:
- _id: PeJo
doi: 10.15479/AT:ISTA:th_997
file:
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file_date_updated: 2020-07-14T12:46:04Z
has_accepted_license: '1'
language:
- iso: eng
month: '03'
oa: 1
oa_version: Published Version
page: '110'
publication_identifier:
  issn:
  - 2663-337X
publication_status: published
publisher: Institute of Science and Technology Austria
publist_id: '7541'
pubrep_id: '997'
related_material:
  record:
  - id: '1117'
    relation: part_of_dissertation
    status: public
  - id: '749'
    relation: part_of_dissertation
    status: public
status: public
supervisor:
- first_name: Peter M
  full_name: Jonas, Peter M
  id: 353C1B58-F248-11E8-B48F-1D18A9856A87
  last_name: Jonas
  orcid: 0000-0001-5001-4804
title: Synaptotagmins ensure speed and efficiency of inhibitory neurotransmitter release
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: '2018'
...
---
_id: '325'
abstract:
- lang: eng
  text: Probabilistic programs extend classical imperative programs with real-valued
    random variables and random branching. The most basic liveness property for such
    programs is the termination property. The qualitative (aka almost-sure) termination
    problem asks whether a given program program terminates with probability 1. While
    ranking functions provide a sound and complete method for non-probabilistic programs,
    the extension of them to probabilistic programs is achieved via ranking supermartingales
    (RSMs). Although deep theoretical results have been established about RSMs, their
    application to probabilistic programs with nondeterminism has been limited only
    to programs of restricted control-flow structure. For non-probabilistic programs,
    lexicographic ranking functions provide a compositional and practical approach
    for termination analysis of real-world programs. In this work we introduce lexicographic
    RSMs and show that they present a sound method for almost-sure termination of
    probabilistic programs with nondeterminism. We show that lexicographic RSMs provide
    a tool for compositional reasoning about almost-sure termination, and for probabilistic
    programs with linear arithmetic they can be synthesized efficiently (in polynomial
    time). We also show that with additional restrictions even asymptotic bounds on
    expected termination time can be obtained through lexicographic RSMs. Finally,
    we present experimental results on benchmarks adapted from previous work to demonstrate
    the effectiveness of our approach.
article_number: '34'
arxiv: 1
author:
- first_name: Sheshansh
  full_name: Agrawal, Sheshansh
  last_name: Agrawal
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Petr
  full_name: Novotny, Petr
  id: 3CC3B868-F248-11E8-B48F-1D18A9856A87
  last_name: Novotny
citation:
  ama: 'Agrawal S, Chatterjee K, Novotný P. Lexicographic ranking supermartingales:
    an efficient approach to termination of probabilistic programs. In: Vol 2. ACM;
    2018. doi:<a href="https://doi.org/10.1145/3158122">10.1145/3158122</a>'
  apa: 'Agrawal, S., Chatterjee, K., &#38; Novotný, P. (2018). Lexicographic ranking
    supermartingales: an efficient approach to termination of probabilistic programs
    (Vol. 2). Presented at the POPL: Principles of Programming Languages, Los Angeles,
    CA, USA: ACM. <a href="https://doi.org/10.1145/3158122">https://doi.org/10.1145/3158122</a>'
  chicago: 'Agrawal, Sheshansh, Krishnendu Chatterjee, and Petr Novotný. “Lexicographic
    Ranking Supermartingales: An Efficient Approach to Termination of Probabilistic
    Programs,” Vol. 2. ACM, 2018. <a href="https://doi.org/10.1145/3158122">https://doi.org/10.1145/3158122</a>.'
  ieee: 'S. Agrawal, K. Chatterjee, and P. Novotný, “Lexicographic ranking supermartingales:
    an efficient approach to termination of probabilistic programs,” presented at
    the POPL: Principles of Programming Languages, Los Angeles, CA, USA, 2018, vol.
    2, no. POPL.'
  ista: 'Agrawal S, Chatterjee K, Novotný P. 2018. Lexicographic ranking supermartingales:
    an efficient approach to termination of probabilistic programs. POPL: Principles
    of Programming Languages vol. 2, 34.'
  mla: 'Agrawal, Sheshansh, et al. <i>Lexicographic Ranking Supermartingales: An Efficient
    Approach to Termination of Probabilistic Programs</i>. Vol. 2, no. POPL, 34, ACM,
    2018, doi:<a href="https://doi.org/10.1145/3158122">10.1145/3158122</a>.'
  short: S. Agrawal, K. Chatterjee, P. Novotný, in:, ACM, 2018.
conference:
  end_date: 2018-01-13
  location: Los Angeles, CA, USA
  name: 'POPL: Principles of Programming Languages'
  start_date: 2018-01-07
date_created: 2018-12-11T11:45:50Z
date_published: 2018-01-01T00:00:00Z
date_updated: 2021-01-12T07:42:07Z
day: '01'
department:
- _id: KrCh
doi: 10.1145/3158122
external_id:
  arxiv:
  - '1709.04037'
intvolume: '         2'
issue: POPL
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://arxiv.org/abs/1709.04037
month: '01'
oa: 1
oa_version: Preprint
project:
- _id: 25832EC2-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: S 11407_N23
  name: Rigorous Systems Engineering
publication_status: published
publisher: ACM
publist_id: '7540'
quality_controlled: '1'
status: public
title: 'Lexicographic ranking supermartingales: an efficient approach to termination
  of probabilistic programs'
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 2
year: '2018'
...
