---
_id: '9618'
abstract:
- lang: eng
text: The control of nonequilibrium quantum dynamics in many-body systems is challenging
because interactions typically lead to thermalization and a chaotic spreading
throughout Hilbert space. We investigate nonequilibrium dynamics after rapid quenches
in a many-body system composed of 3 to 200 strongly interacting qubits in one
and two spatial dimensions. Using a programmable quantum simulator based on Rydberg
atom arrays, we show that coherent revivals associated with so-called quantum
many-body scars can be stabilized by periodic driving, which generates a robust
subharmonic response akin to discrete time-crystalline order. We map Hilbert space
dynamics, geometry dependence, phase diagrams, and system-size dependence of this
emergent phenomenon, demonstrating new ways to steer complex dynamics in many-body
systems and enabling potential applications in quantum information science.
acknowledgement: 'We thank many members of the Harvard AMO community, particularly
E. Urbach, S. Dakoulas, and J. Doyle for their efforts enabling safe and productive
operation of our laboratories during 2020. We thank D. Abanin, I. Cong, F. Machado,
H. Pichler, N. Yao, B. Ye, and H. Zhou for stimulating discussions. Funding: We
acknowledge financial support from the Center for Ultracold Atoms, the National
Science Foundation, the Vannevar Bush Faculty Fellowship, the U.S. Department of
Energy (LBNL QSA Center and grant no. DE-SC0021013), the Office of Naval Research,
the Army Research Office MURI, the DARPA DRINQS program (grant no. D18AC00033),
and the DARPA ONISQ program (grant no. W911NF2010021). The authors acknowledge support
from the NSF Graduate Research Fellowship Program (grant DGE1745303) and The Fannie
and John Hertz Foundation (D.B.); a National Defense Science and Engineering Graduate
(NDSEG) fellowship (H.L.); a fellowship from the Max Planck/Harvard Research Center
for Quantum Optics (G.S.); Gordon College (T.T.W.); the European Research Council
(ERC) under the European Union’s Horizon 2020 research and innovation program (grant
agreement no. 850899) (A.A.M. and M.S.); a Department of Energy Computational Science
Graduate Fellowship under award number DE-SC0021110 (N.M.); the Moore Foundation’s
EPiQS Initiative grant no. GBMF4306, the NUS Development grant AY2019/2020, and
the Stanford Institute of Theoretical Physics (W.W.H.); and the Miller Institute
for Basic Research in Science (S.C.). Author contributions: D.B., A.O., H.L., A.K.,
G.S., S.E., and T.T.W. contributed to the building of the experimental setup, performed
the measurements, and analyzed the data. A.A.M., N.M., W.W.H., S.C., and M.S. performed
theoretical analysis. All work was supervised by M.G., V.V., and M.D.L. All authors
discussed the results and contributed to the manuscript. Competing interests: M.G.,
V.V., and M.D.L. are co-founders and shareholders of QuEra Computing. A.O. is a
shareholder of QuEra Computing. Data and materials availability: All data needed
to evaluate the conclusions in the paper are present in the paper and the supplementary
materials.'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: D.
full_name: Bluvstein, D.
last_name: Bluvstein
- first_name: A.
full_name: Omran, A.
last_name: Omran
- first_name: H.
full_name: Levine, H.
last_name: Levine
- first_name: A.
full_name: Keesling, A.
last_name: Keesling
- first_name: G.
full_name: Semeghini, G.
last_name: Semeghini
- first_name: S.
full_name: Ebadi, S.
last_name: Ebadi
- first_name: T. T.
full_name: Wang, T. T.
last_name: Wang
- first_name: Alexios
full_name: Michailidis, Alexios
id: 36EBAD38-F248-11E8-B48F-1D18A9856A87
last_name: Michailidis
orcid: 0000-0002-8443-1064
- first_name: N.
full_name: Maskara, N.
last_name: Maskara
- first_name: W. W.
full_name: Ho, W. W.
last_name: Ho
- first_name: S.
full_name: Choi, S.
last_name: Choi
- first_name: Maksym
full_name: Serbyn, Maksym
id: 47809E7E-F248-11E8-B48F-1D18A9856A87
last_name: Serbyn
orcid: 0000-0002-2399-5827
- first_name: M.
full_name: Greiner, M.
last_name: Greiner
- first_name: V.
full_name: Vuletić, V.
last_name: Vuletić
- first_name: M. D.
full_name: Lukin, M. D.
last_name: Lukin
citation:
ama: Bluvstein D, Omran A, Levine H, et al. Controlling quantum many-body dynamics
in driven Rydberg atom arrays. Science. 2021;371(6536):1355-1359. doi:10.1126/science.abg2530
apa: Bluvstein, D., Omran, A., Levine, H., Keesling, A., Semeghini, G., Ebadi, S.,
… Lukin, M. D. (2021). Controlling quantum many-body dynamics in driven Rydberg
atom arrays. Science. AAAS. https://doi.org/10.1126/science.abg2530
chicago: Bluvstein, D., A. Omran, H. Levine, A. Keesling, G. Semeghini, S. Ebadi,
T. T. Wang, et al. “Controlling Quantum Many-Body Dynamics in Driven Rydberg Atom
Arrays.” Science. AAAS, 2021. https://doi.org/10.1126/science.abg2530.
ieee: D. Bluvstein et al., “Controlling quantum many-body dynamics in driven
Rydberg atom arrays,” Science, vol. 371, no. 6536. AAAS, pp. 1355–1359,
2021.
ista: Bluvstein D, Omran A, Levine H, Keesling A, Semeghini G, Ebadi S, Wang TT,
Michailidis A, Maskara N, Ho WW, Choi S, Serbyn M, Greiner M, Vuletić V, Lukin
MD. 2021. Controlling quantum many-body dynamics in driven Rydberg atom arrays.
Science. 371(6536), 1355–1359.
mla: Bluvstein, D., et al. “Controlling Quantum Many-Body Dynamics in Driven Rydberg
Atom Arrays.” Science, vol. 371, no. 6536, AAAS, 2021, pp. 1355–59, doi:10.1126/science.abg2530.
short: D. Bluvstein, A. Omran, H. Levine, A. Keesling, G. Semeghini, S. Ebadi, T.T.
Wang, A. Michailidis, N. Maskara, W.W. Ho, S. Choi, M. Serbyn, M. Greiner, V.
Vuletić, M.D. Lukin, Science 371 (2021) 1355–1359.
date_created: 2021-06-29T12:04:05Z
date_published: 2021-03-26T00:00:00Z
date_updated: 2023-08-10T13:57:07Z
day: '26'
ddc:
- '539'
department:
- _id: MaSe
doi: 10.1126/science.abg2530
ec_funded: 1
external_id:
arxiv:
- '2012.12276'
isi:
- '000636043400048'
pmid:
- '33632894'
file:
- access_level: open_access
checksum: 0b356fd10ab9bb95177d4c047d4e9c1a
content_type: application/pdf
creator: patrickd
date_created: 2021-09-23T14:00:05Z
date_updated: 2021-09-23T14:00:05Z
file_id: '10040'
file_name: scars_subharmonic_combined_manuscript_2_11_2021 (2)-1.pdf
file_size: 3671159
relation: main_file
success: 1
file_date_updated: 2021-09-23T14:00:05Z
has_accepted_license: '1'
intvolume: ' 371'
isi: 1
issue: '6536'
keyword:
- Multidisciplinary
language:
- iso: eng
month: '03'
oa: 1
oa_version: Preprint
page: 1355-1359
pmid: 1
project:
- _id: 23841C26-32DE-11EA-91FC-C7463DDC885E
call_identifier: H2020
grant_number: '850899'
name: 'Non-Ergodic Quantum Matter: Universality, Dynamics and Control'
publication: Science
publication_identifier:
eissn:
- 1095-9203
issn:
- 0036-8075
publication_status: published
publisher: AAAS
quality_controlled: '1'
scopus_import: '1'
status: public
title: Controlling quantum many-body dynamics in driven Rydberg atom arrays
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 371
year: '2021'
...
---
_id: '10025'
abstract:
- lang: eng
text: Ferromagnetism is most common in transition metal compounds but may also arise
in low-density two-dimensional electron systems, with signatures observed in silicon,
III-V semiconductor systems, and graphene moiré heterostructures. Here we show
that gate-tuned van Hove singularities in rhombohedral trilayer graphene drive
the spontaneous ferromagnetic polarization of the electron system into one or
more spin- and valley flavors. Using capacitance measurements on graphite-gated
van der Waals heterostructures, we find a cascade of density- and electronic displacement
field tuned phase transitions marked by negative electronic compressibility. The
transitions define the boundaries between phases where quantum oscillations have
either four-fold, two-fold, or one-fold degeneracy, associated with a spin and
valley degenerate normal metal, spin-polarized `half-metal', and spin and valley
polarized `quarter metal', respectively. For electron doping, the salient features
are well captured by a phenomenological Stoner model with a valley-anisotropic
Hund's coupling, likely arising from interactions at the lattice scale. For hole
filling, we observe a richer phase diagram featuring a delicate interplay of broken
symmetries and transitions in the Fermi surface topology. Finally, by rotational
alignment of a hexagonal boron nitride substrate to induce a moiré superlattice,
we find that the superlattice perturbs the preexisting isospin order only weakly,
leaving the basic phase diagram intact while catalyzing the formation of topologically
nontrivial gapped states whenever itinerant half- or quarter metal states occur
at half- or quarter superlattice band filling. Our results show that rhombohedral
trilayer graphene is an ideal platform for well-controlled tests of many-body
theory and reveal magnetism in moiré materials to be fundamentally itinerant in
nature.
acknowledgement: "The authors acknowledge discussions with A. Macdonald, L. Fu, F.
Wang and M. Zaletel. AFY acknowledges support of the National Science Foundation
under DMR1654186, and the Gordon and Betty Moore Foundation under award GBMF9471.
The authors acknowledge the use of the research facilities within the California
NanoSystems Institute, supported by the University of California, Santa Barbara
and the University of California, Office of the President.\r\nK.W. and T.T. acknowledge
support from the Elemental Strategy Initiative conducted by the MEXT, Japan, Grant
Number JPMXP0112101001 and JSPS KAKENHI, Grant Number JP20H00354. EB and TH were
supported by the European Research Council (ERC) under grant HQMAT (Grant Agreement
No. 817799). A.G. acknowledges support by the European Unions Horizon 2020 research
and innovation program under the Marie Sklodowska-Curie Grant Agreement\r\nNo. 754411.\r\n"
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Haoxin
full_name: Zhou, Haoxin
last_name: Zhou
- first_name: Tian
full_name: Xie, Tian
last_name: Xie
- first_name: Areg
full_name: Ghazaryan, Areg
id: 4AF46FD6-F248-11E8-B48F-1D18A9856A87
last_name: Ghazaryan
orcid: 0000-0001-9666-3543
- first_name: Tobias
full_name: Holder, Tobias
last_name: Holder
- first_name: James R.
full_name: Ehrets, James R.
last_name: Ehrets
- first_name: Eric M.
full_name: Spanton, Eric M.
last_name: Spanton
- first_name: Takashi
full_name: Taniguchi, Takashi
last_name: Taniguchi
- first_name: Kenji
full_name: Watanabe, Kenji
last_name: Watanabe
- first_name: Erez
full_name: Berg, Erez
last_name: Berg
- first_name: Maksym
full_name: Serbyn, Maksym
id: 47809E7E-F248-11E8-B48F-1D18A9856A87
last_name: Serbyn
orcid: 0000-0002-2399-5827
- first_name: Andrea F.
full_name: Young, Andrea F.
last_name: Young
citation:
ama: Zhou H, Xie T, Ghazaryan A, et al. Half and quarter metals in rhombohedral
trilayer graphene. Nature. 2021. doi:10.1038/s41586-021-03938-w
apa: Zhou, H., Xie, T., Ghazaryan, A., Holder, T., Ehrets, J. R., Spanton, E. M.,
… Young, A. F. (2021). Half and quarter metals in rhombohedral trilayer graphene.
Nature. Springer Nature. https://doi.org/10.1038/s41586-021-03938-w
chicago: Zhou, Haoxin, Tian Xie, Areg Ghazaryan, Tobias Holder, James R. Ehrets,
Eric M. Spanton, Takashi Taniguchi, et al. “Half and Quarter Metals in Rhombohedral
Trilayer Graphene.” Nature. Springer Nature, 2021. https://doi.org/10.1038/s41586-021-03938-w.
ieee: H. Zhou et al., “Half and quarter metals in rhombohedral trilayer graphene,”
Nature. Springer Nature, 2021.
ista: Zhou H, Xie T, Ghazaryan A, Holder T, Ehrets JR, Spanton EM, Taniguchi T,
Watanabe K, Berg E, Serbyn M, Young AF. 2021. Half and quarter metals in rhombohedral
trilayer graphene. Nature.
mla: Zhou, Haoxin, et al. “Half and Quarter Metals in Rhombohedral Trilayer Graphene.”
Nature, Springer Nature, 2021, doi:10.1038/s41586-021-03938-w.
short: H. Zhou, T. Xie, A. Ghazaryan, T. Holder, J.R. Ehrets, E.M. Spanton, T. Taniguchi,
K. Watanabe, E. Berg, M. Serbyn, A.F. Young, Nature (2021).
date_created: 2021-09-19T22:01:25Z
date_published: 2021-09-01T00:00:00Z
date_updated: 2023-08-14T07:04:06Z
day: '01'
department:
- _id: MaSe
- _id: MiLe
doi: 10.1038/s41586-021-03938-w
ec_funded: 1
external_id:
arxiv:
- '2104.00653'
isi:
- '000706977400002'
isi: 1
keyword:
- condensed matter - mesoscale and nanoscale physics
- condensed matter - strongly correlated electrons
- multidisciplinary
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2104.00653
month: '09'
oa: 1
oa_version: Preprint
project:
- _id: 260C2330-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '754411'
name: ISTplus - Postdoctoral Fellowships
publication: Nature
publication_identifier:
eissn:
- 1476-4687
issn:
- 0028-0836
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
related_material:
link:
- relation: erratum
url: https://doi.org/10.1038/s41586-021-04181-z
scopus_import: '1'
status: public
title: Half and quarter metals in rhombohedral trilayer graphene
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
year: '2021'
...
---
_id: '10223'
abstract:
- lang: eng
text: Growth regulation tailors development in plants to their environment. A prominent
example of this is the response to gravity, in which shoots bend up and roots
bend down1. This paradox is based on opposite effects of the phytohormone auxin,
which promotes cell expansion in shoots while inhibiting it in roots via a yet
unknown cellular mechanism2. Here, by combining microfluidics, live imaging, genetic
engineering and phosphoproteomics in Arabidopsis thaliana, we advance understanding
of how auxin inhibits root growth. We show that auxin activates two distinct,
antagonistically acting signalling pathways that converge on rapid regulation
of apoplastic pH, a causative determinant of growth. Cell surface-based TRANSMEMBRANE
KINASE1 (TMK1) interacts with and mediates phosphorylation and activation of plasma
membrane H+-ATPases for apoplast acidification, while intracellular canonical
auxin signalling promotes net cellular H+ influx, causing apoplast alkalinization.
Simultaneous activation of these two counteracting mechanisms poises roots for
rapid, fine-tuned growth modulation in navigating complex soil environments.
acknowledged_ssus:
- _id: LifeSc
- _id: M-Shop
- _id: Bio
acknowledgement: We thank N. Gnyliukh and L. Hörmayer for technical assistance and
N. Paris for sharing PM-Cyto seeds. We gratefully acknowledge the Life Science,
Machine Shop and Bioimaging Facilities of IST Austria. This project has received
funding from the European Research Council Advanced Grant (ETAP-742985) and the
Austrian Science Fund (FWF) under I 3630-B25 to J.F., the National Institutes of
Health (GM067203) to W.M.G., the Netherlands Organization for Scientific Research
(NWO; VIDI-864.13.001), Research Foundation-Flanders (FWO; Odysseus II G0D0515N)
and a European Research Council Starting Grant (TORPEDO-714055) to W.S. and B.D.R.,
the VICI grant (865.14.001) from the Netherlands Organization for Scientific Research
to M.R. and D.W., the Australian Research Council and China National Distinguished
Expert Project (WQ20174400441) to S.S., the MEXT/JSPS KAKENHI to K.T. (20K06685)
and T.K. (20H05687 and 20H05910), the European Union’s Horizon 2020 research and
innovation programme under Marie Skłodowska-Curie grant agreement no. 665385 and
the DOC Fellowship of the Austrian Academy of Sciences to L.L., and the China Scholarship
Council to J.C.
article_processing_charge: No
article_type: original
author:
- first_name: Lanxin
full_name: Li, Lanxin
id: 367EF8FA-F248-11E8-B48F-1D18A9856A87
last_name: Li
orcid: 0000-0002-5607-272X
- first_name: Inge
full_name: Verstraeten, Inge
id: 362BF7FE-F248-11E8-B48F-1D18A9856A87
last_name: Verstraeten
orcid: 0000-0001-7241-2328
- first_name: Mark
full_name: Roosjen, Mark
last_name: Roosjen
- first_name: Koji
full_name: Takahashi, Koji
last_name: Takahashi
- first_name: Lesia
full_name: Rodriguez Solovey, Lesia
id: 3922B506-F248-11E8-B48F-1D18A9856A87
last_name: Rodriguez Solovey
orcid: 0000-0002-7244-7237
- first_name: Jack
full_name: Merrin, Jack
id: 4515C308-F248-11E8-B48F-1D18A9856A87
last_name: Merrin
orcid: 0000-0001-5145-4609
- first_name: Jian
full_name: Chen, Jian
last_name: Chen
- first_name: Lana
full_name: Shabala, Lana
last_name: Shabala
- first_name: Wouter
full_name: Smet, Wouter
last_name: Smet
- first_name: Hong
full_name: Ren, Hong
last_name: Ren
- first_name: Steffen
full_name: Vanneste, Steffen
last_name: Vanneste
- first_name: Sergey
full_name: Shabala, Sergey
last_name: Shabala
- first_name: Bert
full_name: De Rybel, Bert
last_name: De Rybel
- first_name: Dolf
full_name: Weijers, Dolf
last_name: Weijers
- first_name: Toshinori
full_name: Kinoshita, Toshinori
last_name: Kinoshita
- first_name: William M.
full_name: Gray, William M.
last_name: Gray
- first_name: Jiří
full_name: Friml, Jiří
id: 4159519E-F248-11E8-B48F-1D18A9856A87
last_name: Friml
orcid: 0000-0002-8302-7596
citation:
ama: Li L, Verstraeten I, Roosjen M, et al. Cell surface and intracellular auxin
signalling for H+ fluxes in root growth. Nature. 2021;599(7884):273-277.
doi:10.1038/s41586-021-04037-6
apa: Li, L., Verstraeten, I., Roosjen, M., Takahashi, K., Rodriguez Solovey, L.,
Merrin, J., … Friml, J. (2021). Cell surface and intracellular auxin signalling
for H+ fluxes in root growth. Nature. Springer Nature. https://doi.org/10.1038/s41586-021-04037-6
chicago: Li, Lanxin, Inge Verstraeten, Mark Roosjen, Koji Takahashi, Lesia Rodriguez
Solovey, Jack Merrin, Jian Chen, et al. “Cell Surface and Intracellular Auxin
Signalling for H+ Fluxes in Root Growth.” Nature. Springer Nature,
2021. https://doi.org/10.1038/s41586-021-04037-6.
ieee: L. Li et al., “Cell surface and intracellular auxin signalling for
H+ fluxes in root growth,” Nature, vol. 599, no. 7884. Springer
Nature, pp. 273–277, 2021.
ista: Li L, Verstraeten I, Roosjen M, Takahashi K, Rodriguez Solovey L, Merrin J,
Chen J, Shabala L, Smet W, Ren H, Vanneste S, Shabala S, De Rybel B, Weijers D,
Kinoshita T, Gray WM, Friml J. 2021. Cell surface and intracellular auxin signalling
for H+ fluxes in root growth. Nature. 599(7884), 273–277.
mla: Li, Lanxin, et al. “Cell Surface and Intracellular Auxin Signalling for H+
Fluxes in Root Growth.” Nature, vol. 599, no. 7884, Springer Nature, 2021,
pp. 273–77, doi:10.1038/s41586-021-04037-6.
short: L. Li, I. Verstraeten, M. Roosjen, K. Takahashi, L. Rodriguez Solovey, J.
Merrin, J. Chen, L. Shabala, W. Smet, H. Ren, S. Vanneste, S. Shabala, B. De Rybel,
D. Weijers, T. Kinoshita, W.M. Gray, J. Friml, Nature 599 (2021) 273–277.
date_created: 2021-11-07T23:01:25Z
date_published: 2021-11-11T00:00:00Z
date_updated: 2024-10-29T10:22:45Z
day: '11'
department:
- _id: JiFr
- _id: NanoFab
doi: 10.1038/s41586-021-04037-6
ec_funded: 1
external_id:
isi:
- '000713338100006'
pmid:
- '34707283'
intvolume: ' 599'
isi: 1
issue: '7884'
keyword:
- Multidisciplinary
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.doi.org/10.21203/rs.3.rs-266395/v3
month: '11'
oa: 1
oa_version: Preprint
page: 273-277
pmid: 1
project:
- _id: 261099A6-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '742985'
name: Tracing Evolution of Auxin Transport and Polarity in Plants
- _id: 26538374-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: I03630
name: Molecular mechanisms of endocytic cargo recognition in plants
- _id: 2564DBCA-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '665385'
name: International IST Doctoral Program
- _id: 26B4D67E-B435-11E9-9278-68D0E5697425
grant_number: '25351'
name: 'A Case Study of Plant Growth Regulation: Molecular Mechanism of Auxin-mediated
Rapid Growth Inhibition in Arabidopsis Root'
publication: Nature
publication_identifier:
eissn:
- '14764687'
issn:
- '00280836'
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
related_material:
link:
- description: News on IST Webpage
relation: press_release
url: https://ist.ac.at/en/news/stop-and-grow/
record:
- id: '10095'
relation: earlier_version
status: public
scopus_import: '1'
status: public
title: Cell surface and intracellular auxin signalling for H+ fluxes in
root growth
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 599
year: '2021'
...
---
_id: '10299'
abstract:
- lang: eng
text: Turbulence generally arises in shear flows if velocities and hence, inertial
forces are sufficiently large. In striking contrast, viscoelastic fluids can exhibit
disordered motion even at vanishing inertia. Intermediate between these cases,
a state of chaotic motion, “elastoinertial turbulence” (EIT), has been observed
in a narrow Reynolds number interval. We here determine the origin of EIT in experiments
and show that characteristic EIT structures can be detected across an unexpectedly
wide range of parameters. Close to onset, a pattern of chevron-shaped streaks
emerges in qualitative agreement with linear and weakly nonlinear theory. However,
in experiments, the dynamics remain weakly chaotic, and the instability can be
traced to far lower Reynolds numbers than permitted by theory. For increasing
inertia, the flow undergoes a transformation to a wall mode composed of inclined
near-wall streaks and shear layers. This mode persists to what is known as the
“maximum drag reduction limit,” and overall EIT is found to dominate viscoelastic
flows across more than three orders of magnitude in Reynolds number.
acknowledgement: We thank Y. Dubief, R. Kerswell, E. Marensi, V. Shankar, V. Steinberg,
and V. Terrapon for discussions and helpful comments. A.V. and B.H. acknowledge
funding from the Austrian Science Fund, grant I4188-N30, within the Deutsche Forschungsgemeinschaft
research unit FOR 2688.
article_number: e2102350118
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: George H
full_name: Choueiri, George H
id: 448BD5BC-F248-11E8-B48F-1D18A9856A87
last_name: Choueiri
- first_name: Jose M
full_name: Lopez Alonso, Jose M
id: 40770848-F248-11E8-B48F-1D18A9856A87
last_name: Lopez Alonso
orcid: 0000-0002-0384-2022
- first_name: Atul
full_name: Varshney, Atul
id: 2A2006B2-F248-11E8-B48F-1D18A9856A87
last_name: Varshney
orcid: 0000-0002-3072-5999
- first_name: Sarath
full_name: Sankar, Sarath
last_name: Sankar
- first_name: Björn
full_name: Hof, Björn
id: 3A374330-F248-11E8-B48F-1D18A9856A87
last_name: Hof
orcid: 0000-0003-2057-2754
citation:
ama: Choueiri GH, Lopez Alonso JM, Varshney A, Sankar S, Hof B. Experimental observation
of the origin and structure of elastoinertial turbulence. Proceedings of the
National Academy of Sciences. 2021;118(45). doi:10.1073/pnas.2102350118
apa: Choueiri, G. H., Lopez Alonso, J. M., Varshney, A., Sankar, S., & Hof,
B. (2021). Experimental observation of the origin and structure of elastoinertial
turbulence. Proceedings of the National Academy of Sciences. National Academy
of Sciences. https://doi.org/10.1073/pnas.2102350118
chicago: Choueiri, George H, Jose M Lopez Alonso, Atul Varshney, Sarath Sankar,
and Björn Hof. “Experimental Observation of the Origin and Structure of Elastoinertial
Turbulence.” Proceedings of the National Academy of Sciences. National
Academy of Sciences, 2021. https://doi.org/10.1073/pnas.2102350118.
ieee: G. H. Choueiri, J. M. Lopez Alonso, A. Varshney, S. Sankar, and B. Hof, “Experimental
observation of the origin and structure of elastoinertial turbulence,” Proceedings
of the National Academy of Sciences, vol. 118, no. 45. National Academy of
Sciences, 2021.
ista: Choueiri GH, Lopez Alonso JM, Varshney A, Sankar S, Hof B. 2021. Experimental
observation of the origin and structure of elastoinertial turbulence. Proceedings
of the National Academy of Sciences. 118(45), e2102350118.
mla: Choueiri, George H., et al. “Experimental Observation of the Origin and Structure
of Elastoinertial Turbulence.” Proceedings of the National Academy of Sciences,
vol. 118, no. 45, e2102350118, National Academy of Sciences, 2021, doi:10.1073/pnas.2102350118.
short: G.H. Choueiri, J.M. Lopez Alonso, A. Varshney, S. Sankar, B. Hof, Proceedings
of the National Academy of Sciences 118 (2021).
date_created: 2021-11-17T13:24:24Z
date_published: 2021-11-03T00:00:00Z
date_updated: 2023-08-14T11:50:10Z
day: '03'
department:
- _id: BjHo
doi: 10.1073/pnas.2102350118
external_id:
arxiv:
- '2103.00023'
isi:
- '000720926900019'
pmid:
- ' 34732570'
intvolume: ' 118'
isi: 1
issue: '45'
keyword:
- multidisciplinary
- elastoinertial turbulence
- viscoelastic flows
- elastic instability
- drag reduction
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2103.00023
month: '11'
oa: 1
oa_version: Preprint
pmid: 1
project:
- _id: 238B8092-32DE-11EA-91FC-C7463DDC885E
call_identifier: FWF
grant_number: I04188
name: Instabilities in pulsating pipe flow of Newtonian and complex fluids
publication: Proceedings of the National Academy of Sciences
publication_identifier:
eissn:
- 1091-6490
issn:
- 0027-8424
publication_status: published
publisher: National Academy of Sciences
quality_controlled: '1'
scopus_import: '1'
status: public
title: Experimental observation of the origin and structure of elastoinertial turbulence
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 118
year: '2021'
...
---
_id: '10616'
abstract:
- lang: eng
text: Electrons in moiré flat band systems can spontaneously break time-reversal
symmetry, giving rise to a quantized anomalous Hall effect. In this study, we
use a superconducting quantum interference device to image stray magnetic fields
in twisted bilayer graphene aligned to hexagonal boron nitride. We find a magnetization
of several Bohr magnetons per charge carrier, demonstrating that the magnetism
is primarily orbital in nature. Our measurements reveal a large change in the
magnetization as the chemical potential is swept across the quantum anomalous
Hall gap, consistent with the expected contribution of chiral edge states to the
magnetization of an orbital Chern insulator. Mapping the spatial evolution of
field-driven magnetic reversal, we find a series of reproducible micrometer-scale
domains pinned to structural disorder.
acknowledgement: 'We thank A. H. Macdonald, J. Zhu, M. Zaletel, and D. Xiao for discussions
of the results and E. Lachman for comments on the manuscript. Funding: The work
was primarily funded by the US Department of Energy under DE-SC0020043, with additional
support for instrumentation development supported by the Army Research Office under
grant W911NF-16-1-0361. K.W. and T.T. acknowledge support from the Elemental Strategy
Initiative conducted by MEXT, Japan, grant JPMXP0112101001; JSPS KAKENHI grant JP20H00354
and CREST grant JPMJCR15F3, JST. C.L.T. acknowledges support from the Hertz Foundation
and from the National Science Foundation Graduate Research Fellowship Program under
grant 1650114. This project is funded in part by the Gordon and Betty Moore Foundation’s
EPiQS Initiative, grant GBMF9471 to A.F.Y.'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: C. L.
full_name: Tschirhart, C. L.
last_name: Tschirhart
- first_name: M.
full_name: Serlin, M.
last_name: Serlin
- first_name: Hryhoriy
full_name: Polshyn, Hryhoriy
id: edfc7cb1-526e-11ec-b05a-e6ecc27e4e48
last_name: Polshyn
orcid: 0000-0001-8223-8896
- first_name: A.
full_name: Shragai, A.
last_name: Shragai
- first_name: Z.
full_name: Xia, Z.
last_name: Xia
- first_name: J.
full_name: Zhu, J.
last_name: Zhu
- first_name: Y.
full_name: Zhang, Y.
last_name: Zhang
- first_name: K.
full_name: Watanabe, K.
last_name: Watanabe
- first_name: T.
full_name: Taniguchi, T.
last_name: Taniguchi
- first_name: M. E.
full_name: Huber, M. E.
last_name: Huber
- first_name: A. F.
full_name: Young, A. F.
last_name: Young
citation:
ama: Tschirhart CL, Serlin M, Polshyn H, et al. Imaging orbital ferromagnetism in
a moiré Chern insulator. Science. 2021;372(6548):1323-1327. doi:10.1126/science.abd3190
apa: Tschirhart, C. L., Serlin, M., Polshyn, H., Shragai, A., Xia, Z., Zhu, J.,
… Young, A. F. (2021). Imaging orbital ferromagnetism in a moiré Chern insulator.
Science. American Association for the Advancement of Science. https://doi.org/10.1126/science.abd3190
chicago: Tschirhart, C. L., M. Serlin, Hryhoriy Polshyn, A. Shragai, Z. Xia, J.
Zhu, Y. Zhang, et al. “Imaging Orbital Ferromagnetism in a Moiré Chern Insulator.”
Science. American Association for the Advancement of Science, 2021. https://doi.org/10.1126/science.abd3190.
ieee: C. L. Tschirhart et al., “Imaging orbital ferromagnetism in a moiré
Chern insulator,” Science, vol. 372, no. 6548. American Association for
the Advancement of Science, pp. 1323–1327, 2021.
ista: Tschirhart CL, Serlin M, Polshyn H, Shragai A, Xia Z, Zhu J, Zhang Y, Watanabe
K, Taniguchi T, Huber ME, Young AF. 2021. Imaging orbital ferromagnetism in a
moiré Chern insulator. Science. 372(6548), 1323–1327.
mla: Tschirhart, C. L., et al. “Imaging Orbital Ferromagnetism in a Moiré Chern
Insulator.” Science, vol. 372, no. 6548, American Association for the Advancement
of Science, 2021, pp. 1323–27, doi:10.1126/science.abd3190.
short: C.L. Tschirhart, M. Serlin, H. Polshyn, A. Shragai, Z. Xia, J. Zhu, Y. Zhang,
K. Watanabe, T. Taniguchi, M.E. Huber, A.F. Young, Science 372 (2021) 1323–1327.
date_created: 2022-01-13T12:17:45Z
date_published: 2021-05-27T00:00:00Z
date_updated: 2022-01-13T14:11:36Z
day: '27'
doi: 10.1126/science.abd3190
extern: '1'
external_id:
arxiv:
- '2006.08053'
pmid:
- '34045322'
intvolume: ' 372'
issue: '6548'
keyword:
- multidisciplinary
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2006.08053
month: '05'
oa: 1
oa_version: Preprint
page: 1323-1327
pmid: 1
publication: Science
publication_identifier:
eissn:
- 1095-9203
issn:
- 0036-8075
publication_status: published
publisher: American Association for the Advancement of Science
quality_controlled: '1'
scopus_import: '1'
status: public
title: Imaging orbital ferromagnetism in a moiré Chern insulator
type: journal_article
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
volume: 372
year: '2021'
...
---
_id: '12187'
abstract:
- lang: eng
text: Genomes of germ cells present an existential vulnerability to organisms because
germ cell mutations will propagate to future generations. Transposable elements
are one source of such mutations. In the small flowering plant Arabidopsis, Long
et al. found that genome methylation in the male germline is directed by small
interfering RNAs (siRNAs) imperfectly transcribed from transposons (see the Perspective
by Mosher). These germline siRNAs silence germline transposons and establish inherited
methylation patterns in sperm, thus maintaining the integrity of the plant genome
across generations.
acknowledgement: 'We thank the John Innes Centre Bioimaging Facility (S. Lopez, E.
Wegel, and K. Findlay) for their assistance with microscopy and the Norwich BioScience
Institute Partnership Computing Infrastructure for Science Group for high-performance
computing resources. Funding: This work was funded by a European Research Council
Starting Grant (“SexMeth” 804981; J.L., J.W., and X.F.), a Sainsbury Charitable
Foundation studentship (J.W.), two Biotechnology and Biological Sciences Research
Council (BBSRC) grants (BBS0096201 and BBP0135111; W.S., M.V., and X.F.), two John
Innes Foundation studentships (B.A. and S.D.), and a BBSRC David Phillips Fellowship
(BBL0250431; H.G. and X.F.). Author contributions: J.L., J.W., and X.F. designed
the study and wrote the manuscript; J.L., W.S., B.A., H.G., and S.D. performed the
experiments; and J.L., J.W., B.A., H.G., S.D., M.V., and X.F. analyzed the data.
Competing interests: The authors declare no competing interests. Data and material
availability: All sequencing data have been deposited in the Gene Expression Omnibus
(GEO) under accession no. GSE161625. Accession nos. of published datasets used in
this study are listed in table S6. Published software used in this study include
Bowtie v1.2.2 (https://doi.org/10.1002/0471250953.bi1107s32), Bismark v0.22.2 (https://doi.org/10.1093/bioinformatics/btr167),
Kallisto v0.43.0 (https://doi.org/10.1038/nbt0816-888d), Shortstack v3.8.5 (https://doi.org/10.1534/g3.116.030452),
and Cutadapt v1.15 (https://doi.org/10.1089/cmb.2017.0096). TrimGalore v0.4.1 and
MarkDuplicates v1.141 are available from https://github.com/FelixKrueger/TrimGalore
and https://github.com/broadinstitute/picard, respectively. All remaining data are
in the main paper or the supplementary materials.'
article_processing_charge: No
article_type: original
author:
- first_name: Jincheng
full_name: Long, Jincheng
last_name: Long
- first_name: James
full_name: Walker, James
last_name: Walker
- first_name: Wenjing
full_name: She, Wenjing
last_name: She
- first_name: Billy
full_name: Aldridge, Billy
last_name: Aldridge
- first_name: Hongbo
full_name: Gao, Hongbo
last_name: Gao
- first_name: Samuel
full_name: Deans, Samuel
last_name: Deans
- first_name: Martin
full_name: Vickers, Martin
last_name: Vickers
- first_name: Xiaoqi
full_name: Feng, Xiaoqi
id: e0164712-22ee-11ed-b12a-d80fcdf35958
last_name: Feng
orcid: 0000-0002-4008-1234
citation:
ama: Long J, Walker J, She W, et al. Nurse cell--derived small RNAs define paternal
epigenetic inheritance in Arabidopsis. Science. 2021;373(6550). doi:10.1126/science.abh0556
apa: Long, J., Walker, J., She, W., Aldridge, B., Gao, H., Deans, S., … Feng, X.
(2021). Nurse cell--derived small RNAs define paternal epigenetic inheritance
in Arabidopsis. Science. American Association for the Advancement of Science
(AAAS). https://doi.org/10.1126/science.abh0556
chicago: Long, Jincheng, James Walker, Wenjing She, Billy Aldridge, Hongbo Gao,
Samuel Deans, Martin Vickers, and Xiaoqi Feng. “Nurse Cell--Derived Small RNAs
Define Paternal Epigenetic Inheritance in Arabidopsis.” Science. American
Association for the Advancement of Science (AAAS), 2021. https://doi.org/10.1126/science.abh0556.
ieee: J. Long et al., “Nurse cell--derived small RNAs define paternal epigenetic
inheritance in Arabidopsis,” Science, vol. 373, no. 6550. American Association
for the Advancement of Science (AAAS), 2021.
ista: Long J, Walker J, She W, Aldridge B, Gao H, Deans S, Vickers M, Feng X. 2021.
Nurse cell--derived small RNAs define paternal epigenetic inheritance in Arabidopsis.
Science. 373(6550).
mla: Long, Jincheng, et al. “Nurse Cell--Derived Small RNAs Define Paternal Epigenetic
Inheritance in Arabidopsis.” Science, vol. 373, no. 6550, American Association
for the Advancement of Science (AAAS), 2021, doi:10.1126/science.abh0556.
short: J. Long, J. Walker, W. She, B. Aldridge, H. Gao, S. Deans, M. Vickers, X.
Feng, Science 373 (2021).
date_created: 2023-01-16T09:15:14Z
date_published: 2021-07-02T00:00:00Z
date_updated: 2023-05-08T10:56:39Z
day: '02'
department:
- _id: XiFe
doi: 10.1126/science.abh0556
extern: '1'
external_id:
pmid:
- '34210850'
intvolume: ' 373'
issue: '6550'
keyword:
- Multidisciplinary
language:
- iso: eng
month: '07'
oa_version: None
pmid: 1
publication: Science
publication_identifier:
issn:
- 0036-8075
- 1095-9203
publication_status: published
publisher: American Association for the Advancement of Science (AAAS)
quality_controlled: '1'
scopus_import: '1'
status: public
title: Nurse cell--derived small RNAs define paternal epigenetic inheritance in Arabidopsis
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 373
year: '2021'
...
---
_id: '12585'
abstract:
- lang: eng
text: Glaciers in High Mountain Asia generate meltwater that supports the water
needs of 250 million people, but current knowledge of annual accumulation and
ablation is limited to sparse field measurements biased in location and glacier
size. Here, we present altitudinally-resolved specific mass balances (surface,
internal, and basal combined) for 5527 glaciers in High Mountain Asia for 2000–2016,
derived by correcting observed glacier thinning patterns for mass redistribution
due to ice flow. We find that 41% of glaciers accumulated mass over less than
20% of their area, and only 60% ± 10% of regional annual ablation was compensated
by accumulation. Even without 21st century warming, 21% ± 1% of ice volume will
be lost by 2100 due to current climatic-geometric imbalance, representing a reduction
in glacier ablation into rivers of 28% ± 1%. The ablation of glaciers in the Himalayas
and Tien Shan was mostly unsustainable and ice volume in these regions will reduce
by at least 30% by 2100. The most important and vulnerable glacier-fed river basins
(Amu Darya, Indus, Syr Darya, Tarim Interior) were supplied with >50% sustainable
glacier ablation but will see long-term reductions in ice mass and glacier meltwater
supply regardless of the Karakoram Anomaly.
article_number: '2868'
article_processing_charge: No
article_type: original
author:
- first_name: Evan
full_name: Miles, Evan
last_name: Miles
- first_name: Michael
full_name: McCarthy, Michael
last_name: McCarthy
- first_name: Amaury
full_name: Dehecq, Amaury
last_name: Dehecq
- first_name: Marin
full_name: Kneib, Marin
last_name: Kneib
- first_name: Stefan
full_name: Fugger, Stefan
last_name: Fugger
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
citation:
ama: Miles E, McCarthy M, Dehecq A, Kneib M, Fugger S, Pellicciotti F. Health and
sustainability of glaciers in High Mountain Asia. Nature Communications.
2021;12. doi:10.1038/s41467-021-23073-4
apa: Miles, E., McCarthy, M., Dehecq, A., Kneib, M., Fugger, S., & Pellicciotti,
F. (2021). Health and sustainability of glaciers in High Mountain Asia. Nature
Communications. Springer Nature. https://doi.org/10.1038/s41467-021-23073-4
chicago: Miles, Evan, Michael McCarthy, Amaury Dehecq, Marin Kneib, Stefan Fugger,
and Francesca Pellicciotti. “Health and Sustainability of Glaciers in High Mountain
Asia.” Nature Communications. Springer Nature, 2021. https://doi.org/10.1038/s41467-021-23073-4.
ieee: E. Miles, M. McCarthy, A. Dehecq, M. Kneib, S. Fugger, and F. Pellicciotti,
“Health and sustainability of glaciers in High Mountain Asia,” Nature Communications,
vol. 12. Springer Nature, 2021.
ista: Miles E, McCarthy M, Dehecq A, Kneib M, Fugger S, Pellicciotti F. 2021. Health
and sustainability of glaciers in High Mountain Asia. Nature Communications. 12,
2868.
mla: Miles, Evan, et al. “Health and Sustainability of Glaciers in High Mountain
Asia.” Nature Communications, vol. 12, 2868, Springer Nature, 2021, doi:10.1038/s41467-021-23073-4.
short: E. Miles, M. McCarthy, A. Dehecq, M. Kneib, S. Fugger, F. Pellicciotti, Nature
Communications 12 (2021).
date_created: 2023-02-20T08:11:29Z
date_published: 2021-05-17T00:00:00Z
date_updated: 2023-02-28T13:21:51Z
day: '17'
doi: 10.1038/s41467-021-23073-4
extern: '1'
intvolume: ' 12'
keyword:
- General Physics and Astronomy
- General Biochemistry
- Genetics and Molecular Biology
- General Chemistry
- Multidisciplinary
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1038/s41467-021-23073-4
month: '05'
oa: 1
oa_version: Published Version
publication: Nature Communications
publication_identifier:
issn:
- 2041-1723
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Health and sustainability of glaciers in High Mountain Asia
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 12
year: '2021'
...
---
_id: '9997'
abstract:
- lang: eng
text: Indirect reciprocity is a mechanism for the evolution of cooperation based
on social norms. This mechanism requires that individuals in a population observe
and judge each other’s behaviors. Individuals with a good reputation are more
likely to receive help from others. Previous work suggests that indirect reciprocity
is only effective when all relevant information is reliable and publicly available.
Otherwise, individuals may disagree on how to assess others, even if they all
apply the same social norm. Such disagreements can lead to a breakdown of cooperation.
Here we explore whether the predominantly studied ‘leading eight’ social norms
of indirect reciprocity can be made more robust by equipping them with an element
of generosity. To this end, we distinguish between two kinds of generosity. According
to assessment generosity, individuals occasionally assign a good reputation to
group members who would usually be regarded as bad. According to action generosity,
individuals occasionally cooperate with group members with whom they would usually
defect. Using individual-based simulations, we show that the two kinds of generosity
have a very different effect on the resulting reputation dynamics. Assessment
generosity tends to add to the overall noise and allows defectors to invade. In
contrast, a limited amount of action generosity can be beneficial in a few cases.
However, even when action generosity is beneficial, the respective simulations
do not result in full cooperation. Our results suggest that while generosity can
favor cooperation when individuals use the most simple strategies of reciprocity,
it is disadvantageous when individuals use more complex social norms.
acknowledgement: 'This work was supported by the European Research Council CoG 863818
(ForM-SMArt) (to K.C.) and the European Research Council Starting Grant 850529:
E-DIRECT (to C.H.). L.S. received additional partial support by the Austrian Science
Fund (FWF) under Grant Z211-N23 (Wittgenstein Award).'
article_number: '17443'
article_processing_charge: Yes
article_type: original
author:
- first_name: Laura
full_name: Schmid, Laura
id: 38B437DE-F248-11E8-B48F-1D18A9856A87
last_name: Schmid
orcid: 0000-0002-6978-7329
- first_name: Pouya
full_name: Shati, Pouya
last_name: Shati
- first_name: Christian
full_name: Hilbe, Christian
last_name: Hilbe
- first_name: Krishnendu
full_name: Chatterjee, Krishnendu
id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
last_name: Chatterjee
orcid: 0000-0002-4561-241X
citation:
ama: Schmid L, Shati P, Hilbe C, Chatterjee K. The evolution of indirect reciprocity
under action and assessment generosity. Scientific Reports. 2021;11(1).
doi:10.1038/s41598-021-96932-1
apa: Schmid, L., Shati, P., Hilbe, C., & Chatterjee, K. (2021). The evolution
of indirect reciprocity under action and assessment generosity. Scientific
Reports. Springer Nature. https://doi.org/10.1038/s41598-021-96932-1
chicago: Schmid, Laura, Pouya Shati, Christian Hilbe, and Krishnendu Chatterjee.
“The Evolution of Indirect Reciprocity under Action and Assessment Generosity.”
Scientific Reports. Springer Nature, 2021. https://doi.org/10.1038/s41598-021-96932-1.
ieee: L. Schmid, P. Shati, C. Hilbe, and K. Chatterjee, “The evolution of indirect
reciprocity under action and assessment generosity,” Scientific Reports,
vol. 11, no. 1. Springer Nature, 2021.
ista: Schmid L, Shati P, Hilbe C, Chatterjee K. 2021. The evolution of indirect
reciprocity under action and assessment generosity. Scientific Reports. 11(1),
17443.
mla: Schmid, Laura, et al. “The Evolution of Indirect Reciprocity under Action and
Assessment Generosity.” Scientific Reports, vol. 11, no. 1, 17443, Springer
Nature, 2021, doi:10.1038/s41598-021-96932-1.
short: L. Schmid, P. Shati, C. Hilbe, K. Chatterjee, Scientific Reports 11 (2021).
date_created: 2021-09-11T16:22:02Z
date_published: 2021-08-31T00:00:00Z
date_updated: 2025-07-14T09:10:09Z
day: '31'
ddc:
- '003'
department:
- _id: GradSch
- _id: KrCh
doi: 10.1038/s41598-021-96932-1
ec_funded: 1
external_id:
isi:
- '000692406400018'
pmid:
- '34465830'
file:
- access_level: open_access
checksum: 19df8816cf958b272b85841565c73182
content_type: application/pdf
creator: cchlebak
date_created: 2021-09-13T10:31:21Z
date_updated: 2021-09-13T10:31:21Z
file_id: '10006'
file_name: 2021_ScientificReports_Schmid.pdf
file_size: 2424943
relation: main_file
success: 1
file_date_updated: 2021-09-13T10:31:21Z
has_accepted_license: '1'
intvolume: ' 11'
isi: 1
issue: '1'
keyword:
- Multidisciplinary
language:
- iso: eng
month: '08'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 0599E47C-7A3F-11EA-A408-12923DDC885E
call_identifier: H2020
grant_number: '863818'
name: 'Formal Methods for Stochastic Models: Algorithms and Applications'
- _id: 25F42A32-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: Z211
name: The Wittgenstein Prize
publication: Scientific Reports
publication_identifier:
eissn:
- 2045-2322
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
related_material:
record:
- id: '10293'
relation: dissertation_contains
status: public
status: public
title: The evolution of indirect reciprocity under action and assessment generosity
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 11
year: '2021'
...
---
_id: '8680'
abstract:
- lang: eng
text: Animal development entails the organization of specific cell types in space
and time, and spatial patterns must form in a robust manner. In the zebrafish
spinal cord, neural progenitors form stereotypic patterns despite noisy morphogen
signaling and large-scale cellular rearrangements during morphogenesis and growth.
By directly measuring adhesion forces and preferences for three types of endogenous
neural progenitors, we provide evidence for the differential adhesion model in
which differences in intercellular adhesion mediate cell sorting. Cell type–specific
combinatorial expression of different classes of cadherins (N-cadherin, cadherin
11, and protocadherin 19) results in homotypic preference ex vivo and patterning
robustness in vivo. Furthermore, the differential adhesion code is regulated by
the sonic hedgehog morphogen gradient. We propose that robust patterning during
tissue morphogenesis results from interplay between adhesion-based self-organization
and morphogen-directed patterning.
acknowledgement: "We thank the members of the Megason and Heisenberg labs for critical
discussions of and technical assistance during the work and B. Appel, S. Holley,
J. Jontes, and D. Gilmour for transgenic fish. This work is supported by the Damon
Runyon Cancer Foundation, a NICHD K99 fellowship (1K99HD092623), a Travelling Fellowship
of the Company of Biologists, a Collaborative Research grant from the Burroughs
Wellcome Foundation (T.Y.-C.T.), NIH grant 01GM107733 (T.Y.-C.T. and S.G.M.), NIH
grant R01NS102322 (T.C.-C. and H.K.), and an ERC advanced grant\r\n(MECSPEC) (C.-P.H.)."
article_processing_charge: No
article_type: original
author:
- first_name: Tony Y.-C.
full_name: Tsai, Tony Y.-C.
last_name: Tsai
- first_name: Mateusz K
full_name: Sikora, Mateusz K
id: 2F74BCDE-F248-11E8-B48F-1D18A9856A87
last_name: Sikora
- first_name: Peng
full_name: Xia, Peng
id: 4AB6C7D0-F248-11E8-B48F-1D18A9856A87
last_name: Xia
orcid: 0000-0002-5419-7756
- first_name: Tugba
full_name: Colak-Champollion, Tugba
last_name: Colak-Champollion
- first_name: Holger
full_name: Knaut, Holger
last_name: Knaut
- first_name: Carl-Philipp J
full_name: Heisenberg, Carl-Philipp J
id: 39427864-F248-11E8-B48F-1D18A9856A87
last_name: Heisenberg
orcid: 0000-0002-0912-4566
- first_name: Sean G.
full_name: Megason, Sean G.
last_name: Megason
citation:
ama: Tsai TY-C, Sikora MK, Xia P, et al. An adhesion code ensures robust pattern
formation during tissue morphogenesis. Science. 2020;370(6512):113-116.
doi:10.1126/science.aba6637
apa: Tsai, T. Y.-C., Sikora, M. K., Xia, P., Colak-Champollion, T., Knaut, H., Heisenberg,
C.-P. J., & Megason, S. G. (2020). An adhesion code ensures robust pattern
formation during tissue morphogenesis. Science. American Association for
the Advancement of Science. https://doi.org/10.1126/science.aba6637
chicago: Tsai, Tony Y.-C., Mateusz K Sikora, Peng Xia, Tugba Colak-Champollion,
Holger Knaut, Carl-Philipp J Heisenberg, and Sean G. Megason. “An Adhesion Code
Ensures Robust Pattern Formation during Tissue Morphogenesis.” Science.
American Association for the Advancement of Science, 2020. https://doi.org/10.1126/science.aba6637.
ieee: T. Y.-C. Tsai et al., “An adhesion code ensures robust pattern formation
during tissue morphogenesis,” Science, vol. 370, no. 6512. American Association
for the Advancement of Science, pp. 113–116, 2020.
ista: Tsai TY-C, Sikora MK, Xia P, Colak-Champollion T, Knaut H, Heisenberg C-PJ,
Megason SG. 2020. An adhesion code ensures robust pattern formation during tissue
morphogenesis. Science. 370(6512), 113–116.
mla: Tsai, Tony Y. C., et al. “An Adhesion Code Ensures Robust Pattern Formation
during Tissue Morphogenesis.” Science, vol. 370, no. 6512, American Association
for the Advancement of Science, 2020, pp. 113–16, doi:10.1126/science.aba6637.
short: T.Y.-C. Tsai, M.K. Sikora, P. Xia, T. Colak-Champollion, H. Knaut, C.-P.J.
Heisenberg, S.G. Megason, Science 370 (2020) 113–116.
date_created: 2020-10-19T14:09:38Z
date_published: 2020-10-02T00:00:00Z
date_updated: 2023-08-22T10:36:35Z
day: '02'
department:
- _id: CaHe
doi: 10.1126/science.aba6637
ec_funded: 1
external_id:
isi:
- '000579169000053'
intvolume: ' 370'
isi: 1
issue: '6512'
keyword:
- Multidisciplinary
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.biorxiv.org/content/10.1101/803635v1
month: '10'
oa: 1
oa_version: Preprint
page: 113-116
project:
- _id: 260F1432-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '742573'
name: Interaction and feedback between cell mechanics and fate specification in
vertebrate gastrulation
publication: Science
publication_identifier:
eissn:
- 1095-9203
issn:
- 0036-8075
publication_status: published
publisher: American Association for the Advancement of Science
quality_controlled: '1'
related_material:
link:
- description: News on IST Homepage
relation: press_release
url: https://ist.ac.at/en/news/sticking-together/
scopus_import: '1'
status: public
title: An adhesion code ensures robust pattern formation during tissue morphogenesis
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 370
year: '2020'
...
---
_id: '9059'
abstract:
- lang: eng
text: 'From rock salt to nanoparticle superlattices, complex structure can emerge
from simple building blocks that attract each other through Coulombic forces1-4.
On the micrometre scale, however, colloids in water defy the intuitively simple
idea of forming crystals from oppositely charged partners, instead forming non-equilibrium
structures such as clusters and gels5-7. Although various systems have been engineered
to grow binary crystals8-11, native surface charge in aqueous conditions has not
been used to assemble crystalline materials. Here we form ionic colloidal crystals
in water through an approach that we refer to as polymer-attenuated Coulombic
self-assembly. The key to crystallization is the use of a neutral polymer to keep
particles separated by well defined distances, allowing us to tune the attractive
overlap of electrical double layers, directing particles to disperse, crystallize
or become permanently fixed on demand. The nucleation and growth of macroscopic
single crystals is demonstrated by using the Debye screening length to fine-tune
assembly. Using a variety of colloidal particles and commercial polymers, ionic
colloidal crystals isostructural to caesium chloride, sodium chloride, aluminium
diboride and K4C60 are selected according to particle size ratios. Once fixed
by simply diluting out solution salts, crystals are pulled out of the water for
further manipulation, demonstrating an accurate translation from solution-phase
assembly to dried solid structures. In contrast to other assembly approaches,
in which particles must be carefully engineered to encode binding information12-18,
polymer-attenuated Coulombic self-assembly enables conventional colloids to be
used as model colloidal ions, primed for crystallization. '
article_processing_charge: No
article_type: original
author:
- first_name: Theodore
full_name: Hueckel, Theodore
last_name: Hueckel
- first_name: Glen M.
full_name: Hocky, Glen M.
last_name: Hocky
- first_name: Jérémie A
full_name: Palacci, Jérémie A
id: 8fb92548-2b22-11eb-b7c1-a3f0d08d7c7d
last_name: Palacci
orcid: 0000-0002-7253-9465
- first_name: Stefano
full_name: Sacanna, Stefano
last_name: Sacanna
citation:
ama: Hueckel T, Hocky GM, Palacci JA, Sacanna S. Ionic solids from common colloids.
Nature. 2020;580(7804):487-490. doi:10.1038/s41586-020-2205-0
apa: Hueckel, T., Hocky, G. M., Palacci, J. A., & Sacanna, S. (2020). Ionic
solids from common colloids. Nature. Springer Nature. https://doi.org/10.1038/s41586-020-2205-0
chicago: Hueckel, Theodore, Glen M. Hocky, Jérémie A Palacci, and Stefano Sacanna.
“Ionic Solids from Common Colloids.” Nature. Springer Nature, 2020. https://doi.org/10.1038/s41586-020-2205-0.
ieee: T. Hueckel, G. M. Hocky, J. A. Palacci, and S. Sacanna, “Ionic solids from
common colloids,” Nature, vol. 580, no. 7804. Springer Nature, pp. 487–490,
2020.
ista: Hueckel T, Hocky GM, Palacci JA, Sacanna S. 2020. Ionic solids from common
colloids. Nature. 580(7804), 487–490.
mla: Hueckel, Theodore, et al. “Ionic Solids from Common Colloids.” Nature,
vol. 580, no. 7804, Springer Nature, 2020, pp. 487–90, doi:10.1038/s41586-020-2205-0.
short: T. Hueckel, G.M. Hocky, J.A. Palacci, S. Sacanna, Nature 580 (2020) 487–490.
date_created: 2021-02-02T13:30:50Z
date_published: 2020-04-23T00:00:00Z
date_updated: 2023-02-23T13:47:55Z
day: '23'
doi: 10.1038/s41586-020-2205-0
extern: '1'
external_id:
pmid:
- '32322078'
intvolume: ' 580'
issue: '7804'
keyword:
- Multidisciplinary
language:
- iso: eng
month: '04'
oa_version: None
page: 487-490
pmid: 1
publication: Nature
publication_identifier:
eissn:
- 1476-4687
issn:
- 0028-0836
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Ionic solids from common colloids
type: journal_article
user_id: D865714E-FA4E-11E9-B85B-F5C5E5697425
volume: 580
year: '2020'
...
---
_id: '10342'
abstract:
- lang: eng
text: The blood-brain barrier is made of polarized brain endothelial cells (BECs)
phenotypically conditioned by the central nervous system (CNS). Although transport
across BECs is of paramount importance for nutrient uptake as well as ridding
the brain of waste products, the intracellular sorting mechanisms that regulate
successful receptor-mediated transcytosis in BECs remain to be elucidated. Here,
we used a synthetic multivalent system with tunable avidity to the low-density
lipoprotein receptor–related protein 1 (LRP1) to investigate the mechanisms of
transport across BECs. We used a combination of conventional and super-resolution
microscopy, both in vivo and in vitro, accompanied with biophysical modeling of
transport kinetics and membrane-bound interactions to elucidate the role of membrane-sculpting
protein syndapin-2 on fast transport via tubule formation. We show that high-avidity
cargo biases the LRP1 toward internalization associated with fast degradation,
while mid-avidity augments the formation of syndapin-2 tubular carriers promoting
a fast shuttling across.
acknowledgement: 'Funding: G.B. thanks the ERC for the starting grant (MEViC 278793)
and consolidator award (CheSSTaG 769798), EPSRC/BTG Healthcare Partnership (EP/I001697/1),
EPSRC Established Career Fellowship (EP/N026322/1), EPSRC/SomaNautix Healthcare
Partnership EP/R024723/1, and Children with Cancer UK for the research project (16-227).
X.T. and G.B. thank that Anhui 100 Talent program for facilitating data sharing
and research visits. A.D.-C. and L.R. acknowledge the Royal Society for a Newton
fellowship and the Marie Skłodowska-Curie Actions for a European Fellowship. Author
contributions: X.T. prepared and characterized POs, performed all the fast imaging
in both conventional and STED microscopy, set up the initial BBB model, encapsulated
the PtA2 in POs, and supervised the PtA2-PO animal work. D.M.L. prepared and characterized
POs; performed all the permeability studies, PLA assays, WB and associated data
analysis, and part of the colocalization assays; and performed experiments with
the shRNA for knockdown of syndapin-2. E.S. prepared and characterized POs and performed
part of colocalization assays and Cy7-labeled PO animal experiments. S.N. prepared
and characterized POs and performed part of the colocalization and inhibition assays.
G.F. designed, performed, and analyzed the agent-based simulations of transcytosis.
J.F. designed the image-based algorithm to analyze the PLA data. D.M. prepared and
characterized POs and helped with Cy7-labeled PO animal experiments. A.A. performed
TEM imaging of the POs. A.P. and A.D.-C. synthesized the dye- and peptide-functionalized
and pristine copolymers. M.V., L.H.-K., and A.Š. designed, performed, and analyzed
the MD simulations. Z.Z. supervised and supported STED imaging. P.X., B.F., and
Y.T. synthesized and characterized the PtA2 compound. L.L. performed some of the
animal work. L.R. supported and helped with the BBB characterization. G.B. analyzed
all fast imaging and supervised and coordinated the overall work. X.T., D.M.L.,
E.S., and G.B. wrote the manuscript. Competing interests: The authors declare that
part of the work is associated with the UCL spin-out company SomaNautix Ltd. Data
and materials availability: All data needed to evaluate the conclusions in the paper
are present in the paper and/or the Supplementary Materials. Additional data related
to this paper may be requested from the authors.'
article_number: 'eabc4397 '
article_processing_charge: No
article_type: original
author:
- first_name: Xiaohe
full_name: Tian, Xiaohe
last_name: Tian
- first_name: Diana M.
full_name: Leite, Diana M.
last_name: Leite
- first_name: Edoardo
full_name: Scarpa, Edoardo
last_name: Scarpa
- first_name: Sophie
full_name: Nyberg, Sophie
last_name: Nyberg
- first_name: Gavin
full_name: Fullstone, Gavin
last_name: Fullstone
- first_name: Joe
full_name: Forth, Joe
last_name: Forth
- first_name: Diana
full_name: Matias, Diana
last_name: Matias
- first_name: Azzurra
full_name: Apriceno, Azzurra
last_name: Apriceno
- first_name: Alessandro
full_name: Poma, Alessandro
last_name: Poma
- first_name: Aroa
full_name: Duro-Castano, Aroa
last_name: Duro-Castano
- first_name: Manish
full_name: Vuyyuru, Manish
last_name: Vuyyuru
- first_name: Lena
full_name: Harker-Kirschneck, Lena
last_name: Harker-Kirschneck
- first_name: Anđela
full_name: Šarić, Anđela
id: bf63d406-f056-11eb-b41d-f263a6566d8b
last_name: Šarić
orcid: 0000-0002-7854-2139
- first_name: Zhongping
full_name: Zhang, Zhongping
last_name: Zhang
- first_name: Pan
full_name: Xiang, Pan
last_name: Xiang
- first_name: Bin
full_name: Fang, Bin
last_name: Fang
- first_name: Yupeng
full_name: Tian, Yupeng
last_name: Tian
- first_name: Lei
full_name: Luo, Lei
last_name: Luo
- first_name: Loris
full_name: Rizzello, Loris
last_name: Rizzello
- first_name: Giuseppe
full_name: Battaglia, Giuseppe
last_name: Battaglia
citation:
ama: 'Tian X, Leite DM, Scarpa E, et al. On the shuttling across the blood-brain
barrier via tubule formation: Mechanism and cargo avidity bias. Science Advances.
2020;6(48). doi:10.1126/sciadv.abc4397'
apa: 'Tian, X., Leite, D. M., Scarpa, E., Nyberg, S., Fullstone, G., Forth, J.,
… Battaglia, G. (2020). On the shuttling across the blood-brain barrier via tubule
formation: Mechanism and cargo avidity bias. Science Advances. American
Association for the Advancement of Science. https://doi.org/10.1126/sciadv.abc4397'
chicago: 'Tian, Xiaohe, Diana M. Leite, Edoardo Scarpa, Sophie Nyberg, Gavin Fullstone,
Joe Forth, Diana Matias, et al. “On the Shuttling across the Blood-Brain Barrier
via Tubule Formation: Mechanism and Cargo Avidity Bias.” Science Advances.
American Association for the Advancement of Science, 2020. https://doi.org/10.1126/sciadv.abc4397.'
ieee: 'X. Tian et al., “On the shuttling across the blood-brain barrier via
tubule formation: Mechanism and cargo avidity bias,” Science Advances,
vol. 6, no. 48. American Association for the Advancement of Science, 2020.'
ista: 'Tian X, Leite DM, Scarpa E, Nyberg S, Fullstone G, Forth J, Matias D, Apriceno
A, Poma A, Duro-Castano A, Vuyyuru M, Harker-Kirschneck L, Šarić A, Zhang Z, Xiang
P, Fang B, Tian Y, Luo L, Rizzello L, Battaglia G. 2020. On the shuttling across
the blood-brain barrier via tubule formation: Mechanism and cargo avidity bias.
Science Advances. 6(48), eabc4397.'
mla: 'Tian, Xiaohe, et al. “On the Shuttling across the Blood-Brain Barrier via
Tubule Formation: Mechanism and Cargo Avidity Bias.” Science Advances,
vol. 6, no. 48, eabc4397, American Association for the Advancement of Science,
2020, doi:10.1126/sciadv.abc4397.'
short: X. Tian, D.M. Leite, E. Scarpa, S. Nyberg, G. Fullstone, J. Forth, D. Matias,
A. Apriceno, A. Poma, A. Duro-Castano, M. Vuyyuru, L. Harker-Kirschneck, A. Šarić,
Z. Zhang, P. Xiang, B. Fang, Y. Tian, L. Luo, L. Rizzello, G. Battaglia, Science
Advances 6 (2020).
date_created: 2021-11-26T06:40:28Z
date_published: 2020-11-27T00:00:00Z
date_updated: 2021-11-26T07:00:24Z
day: '27'
ddc:
- '611'
doi: 10.1126/sciadv.abc4397
extern: '1'
external_id:
pmid:
- '33246953'
file:
- access_level: open_access
checksum: 3ba2eca975930cdb0b1ce1ae876885a7
content_type: application/pdf
creator: cchlebak
date_created: 2021-11-26T06:50:09Z
date_updated: 2021-11-26T06:50:09Z
file_id: '10343'
file_name: 2020_SciAdv_Tian.pdf
file_size: 10381298
relation: main_file
success: 1
file_date_updated: 2021-11-26T06:50:09Z
has_accepted_license: '1'
intvolume: ' 6'
issue: '48'
keyword:
- multidisciplinary
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.biorxiv.org/content/10.1101/2020.04.04.025866v1
month: '11'
oa: 1
oa_version: Published Version
pmid: 1
publication: Science Advances
publication_identifier:
issn:
- 2375-2548
publication_status: published
publisher: American Association for the Advancement of Science
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'On the shuttling across the blood-brain barrier via tubule formation: Mechanism
and cargo avidity bias'
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: 8b945eb4-e2f2-11eb-945a-df72226e66a9
volume: 6
year: '2020'
...
---
_id: '10347'
abstract:
- lang: eng
text: Understanding the mechanism of action of compounds capable of inhibiting amyloid-fibril
formation is critical to the development of potential therapeutics against protein-misfolding
diseases. A fundamental challenge for progress is the range of possible target
species and the disparate timescales involved, since the aggregating proteins
are simultaneously the reactants, products, intermediates, and catalysts of the
reaction. It is a complex problem, therefore, to choose the states of the aggregating
proteins that should be bound by the compounds to achieve the most potent inhibition.
We present here a comprehensive kinetic theory of amyloid-aggregation inhibition
that reveals the fundamental thermodynamic and kinetic signatures characterizing
effective inhibitors by identifying quantitative relationships between the aggregation
and binding rate constants. These results provide general physical laws to guide
the design and optimization of inhibitors of amyloid-fibril formation, revealing
in particular the important role of on-rates in the binding of the inhibitors.
acknowledgement: We acknowledge support from Peterhouse, Cambridge (T.C.T.M.); the
Swiss National Science Foundation (T.C.T.M.); the Royal Society (A.S. and S.C.);
the Academy of Medical Sciences (A.S.); Sidney Sussex College, Cambridge (G.M.);
Newnham College, Cambridge (G.T.H.); the Wellcome Trust (T.P.J.K.); the Cambridge
Center for Misfolding Diseases (T.P.J.K. and M.V.); the Biotechnology and Biological
Sciences Research Council (T.P.J.K.); the Frances and Augustus Newman Foundation
(T.P.J.K.); and the Synapsis Foundation for Alzheimer’s disease (P.A.). The research
leading to these results has received funding from the European Research Council
(ERC) under the European Union’s Seventh Framework Program (FP7/2007-2013) through
the ERC Grant PhysProt (Agreement 337969).
article_processing_charge: No
article_type: original
author:
- first_name: Thomas C. T.
full_name: Michaels, Thomas C. T.
last_name: Michaels
- first_name: Anđela
full_name: Šarić, Anđela
id: bf63d406-f056-11eb-b41d-f263a6566d8b
last_name: Šarić
orcid: 0000-0002-7854-2139
- first_name: Georg
full_name: Meisl, Georg
last_name: Meisl
- first_name: Gabriella T.
full_name: Heller, Gabriella T.
last_name: Heller
- first_name: Samo
full_name: Curk, Samo
last_name: Curk
- first_name: Paolo
full_name: Arosio, Paolo
last_name: Arosio
- first_name: Sara
full_name: Linse, Sara
last_name: Linse
- first_name: Christopher M.
full_name: Dobson, Christopher M.
last_name: Dobson
- first_name: Michele
full_name: Vendruscolo, Michele
last_name: Vendruscolo
- first_name: Tuomas P. J.
full_name: Knowles, Tuomas P. J.
last_name: Knowles
citation:
ama: Michaels TCT, Šarić A, Meisl G, et al. Thermodynamic and kinetic design principles
for amyloid-aggregation inhibitors. Proceedings of the National Academy of
Sciences. 2020;117(39):24251-24257. doi:10.1073/pnas.2006684117
apa: Michaels, T. C. T., Šarić, A., Meisl, G., Heller, G. T., Curk, S., Arosio,
P., … Knowles, T. P. J. (2020). Thermodynamic and kinetic design principles for
amyloid-aggregation inhibitors. Proceedings of the National Academy of Sciences.
National Academy of Sciences. https://doi.org/10.1073/pnas.2006684117
chicago: Michaels, Thomas C. T., Anđela Šarić, Georg Meisl, Gabriella T. Heller,
Samo Curk, Paolo Arosio, Sara Linse, Christopher M. Dobson, Michele Vendruscolo,
and Tuomas P. J. Knowles. “Thermodynamic and Kinetic Design Principles for Amyloid-Aggregation
Inhibitors.” Proceedings of the National Academy of Sciences. National
Academy of Sciences, 2020. https://doi.org/10.1073/pnas.2006684117.
ieee: T. C. T. Michaels et al., “Thermodynamic and kinetic design principles
for amyloid-aggregation inhibitors,” Proceedings of the National Academy of
Sciences, vol. 117, no. 39. National Academy of Sciences, pp. 24251–24257,
2020.
ista: Michaels TCT, Šarić A, Meisl G, Heller GT, Curk S, Arosio P, Linse S, Dobson
CM, Vendruscolo M, Knowles TPJ. 2020. Thermodynamic and kinetic design principles
for amyloid-aggregation inhibitors. Proceedings of the National Academy of Sciences.
117(39), 24251–24257.
mla: Michaels, Thomas C. T., et al. “Thermodynamic and Kinetic Design Principles
for Amyloid-Aggregation Inhibitors.” Proceedings of the National Academy of
Sciences, vol. 117, no. 39, National Academy of Sciences, 2020, pp. 24251–57,
doi:10.1073/pnas.2006684117.
short: T.C.T. Michaels, A. Šarić, G. Meisl, G.T. Heller, S. Curk, P. Arosio, S.
Linse, C.M. Dobson, M. Vendruscolo, T.P.J. Knowles, Proceedings of the National
Academy of Sciences 117 (2020) 24251–24257.
date_created: 2021-11-26T07:48:27Z
date_published: 2020-09-14T00:00:00Z
date_updated: 2021-11-26T08:59:06Z
day: '14'
doi: 10.1073/pnas.2006684117
extern: '1'
external_id:
pmid:
- '32929030'
intvolume: ' 117'
issue: '39'
keyword:
- multidisciplinary
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.biorxiv.org/content/10.1101/2020.02.22.960716
month: '09'
oa: 1
oa_version: Published Version
page: 24251-24257
pmid: 1
publication: Proceedings of the National Academy of Sciences
publication_identifier:
eissn:
- 1091-6490
issn:
- 0027-8424
publication_status: published
publisher: National Academy of Sciences
quality_controlled: '1'
scopus_import: '1'
status: public
title: Thermodynamic and kinetic design principles for amyloid-aggregation inhibitors
type: journal_article
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
volume: 117
year: '2020'
...
---
_id: '10349'
abstract:
- lang: eng
text: Sulfolobus acidocaldarius is the closest experimentally tractable archaeal
relative of eukaryotes and, despite lacking obvious cyclin-dependent kinase and
cyclin homologs, has an ordered eukaryote-like cell cycle with distinct phases
of DNA replication and division. Here, in exploring the mechanism of cell division
in S. acidocaldarius, we identify a role for the archaeal proteasome in regulating
the transition from the end of one cell cycle to the beginning of the next. Further,
we identify the archaeal ESCRT-III homolog, CdvB, as a key target of the proteasome
and show that its degradation triggers division by allowing constriction of the
CdvB1:CdvB2 ESCRT-III division ring. These findings offer a minimal mechanism
for ESCRT-III–mediated membrane remodeling and point to a conserved role for the
proteasome in eukaryotic and archaeal cell cycle control.
acknowledgement: "We thank the MRC LMCB at UCL for their support; the flow cytometry
STP at the Francis Crick Institute for assistance, with special thanks to S. Purewal
and D. Davis; C. Bertoli for mentorship\r\nand advice; J. M. Garcia-Arcos for help
early on in this project; the entire Baum lab for their input throughout the project;
the Albers lab for advice and reagents, with special thanks to M. Van Wolferen and
S. Albers; the members of the Wellcome consortium for archaeal cytoskeleton studies
for advice and comments; and J. Löwe, S. Oliferenko, M. Balasubramanian, and D.
Gerlich for discussions and advice on the manuscript. N.P.R. and S.B. would like
to thank N. Rzechorzek, A. Simon, and S. Anjum for discussion and advice."
article_processing_charge: No
article_type: original
author:
- first_name: Gabriel
full_name: Tarrason Risa, Gabriel
last_name: Tarrason Risa
- first_name: Fredrik
full_name: Hurtig, Fredrik
last_name: Hurtig
- first_name: Sian
full_name: Bray, Sian
last_name: Bray
- first_name: Anne E.
full_name: Hafner, Anne E.
last_name: Hafner
- first_name: Lena
full_name: Harker-Kirschneck, Lena
last_name: Harker-Kirschneck
- first_name: Peter
full_name: Faull, Peter
last_name: Faull
- first_name: Colin
full_name: Davis, Colin
last_name: Davis
- first_name: Dimitra
full_name: Papatziamou, Dimitra
last_name: Papatziamou
- first_name: Delyan R.
full_name: Mutavchiev, Delyan R.
last_name: Mutavchiev
- first_name: Catherine
full_name: Fan, Catherine
last_name: Fan
- first_name: Leticia
full_name: Meneguello, Leticia
last_name: Meneguello
- first_name: Andre
full_name: Arashiro Pulschen, Andre
last_name: Arashiro Pulschen
- first_name: Gautam
full_name: Dey, Gautam
last_name: Dey
- first_name: Siân
full_name: Culley, Siân
last_name: Culley
- first_name: Mairi
full_name: Kilkenny, Mairi
last_name: Kilkenny
- first_name: Diorge P.
full_name: Souza, Diorge P.
last_name: Souza
- first_name: Luca
full_name: Pellegrini, Luca
last_name: Pellegrini
- first_name: Robertus A. M.
full_name: de Bruin, Robertus A. M.
last_name: de Bruin
- first_name: Ricardo
full_name: Henriques, Ricardo
last_name: Henriques
- first_name: Ambrosius P.
full_name: Snijders, Ambrosius P.
last_name: Snijders
- first_name: Anđela
full_name: Šarić, Anđela
id: bf63d406-f056-11eb-b41d-f263a6566d8b
last_name: Šarić
orcid: 0000-0002-7854-2139
- first_name: Ann-Christin
full_name: Lindås, Ann-Christin
last_name: Lindås
- first_name: Nicholas P.
full_name: Robinson, Nicholas P.
last_name: Robinson
- first_name: Buzz
full_name: Baum, Buzz
last_name: Baum
citation:
ama: Tarrason Risa G, Hurtig F, Bray S, et al. The proteasome controls ESCRT-III–mediated
cell division in an archaeon. Science. 2020;369(6504). doi:10.1126/science.aaz2532
apa: Tarrason Risa, G., Hurtig, F., Bray, S., Hafner, A. E., Harker-Kirschneck,
L., Faull, P., … Baum, B. (2020). The proteasome controls ESCRT-III–mediated cell
division in an archaeon. Science. American Association for the Advancement
of Science. https://doi.org/10.1126/science.aaz2532
chicago: Tarrason Risa, Gabriel, Fredrik Hurtig, Sian Bray, Anne E. Hafner, Lena
Harker-Kirschneck, Peter Faull, Colin Davis, et al. “The Proteasome Controls ESCRT-III–Mediated
Cell Division in an Archaeon.” Science. American Association for the Advancement
of Science, 2020. https://doi.org/10.1126/science.aaz2532.
ieee: G. Tarrason Risa et al., “The proteasome controls ESCRT-III–mediated
cell division in an archaeon,” Science, vol. 369, no. 6504. American Association
for the Advancement of Science, 2020.
ista: Tarrason Risa G, Hurtig F, Bray S, Hafner AE, Harker-Kirschneck L, Faull P,
Davis C, Papatziamou D, Mutavchiev DR, Fan C, Meneguello L, Arashiro Pulschen
A, Dey G, Culley S, Kilkenny M, Souza DP, Pellegrini L, de Bruin RAM, Henriques
R, Snijders AP, Šarić A, Lindås A-C, Robinson NP, Baum B. 2020. The proteasome
controls ESCRT-III–mediated cell division in an archaeon. Science. 369(6504).
mla: Tarrason Risa, Gabriel, et al. “The Proteasome Controls ESCRT-III–Mediated
Cell Division in an Archaeon.” Science, vol. 369, no. 6504, American Association
for the Advancement of Science, 2020, doi:10.1126/science.aaz2532.
short: G. Tarrason Risa, F. Hurtig, S. Bray, A.E. Hafner, L. Harker-Kirschneck,
P. Faull, C. Davis, D. Papatziamou, D.R. Mutavchiev, C. Fan, L. Meneguello, A.
Arashiro Pulschen, G. Dey, S. Culley, M. Kilkenny, D.P. Souza, L. Pellegrini,
R.A.M. de Bruin, R. Henriques, A.P. Snijders, A. Šarić, A.-C. Lindås, N.P. Robinson,
B. Baum, Science 369 (2020).
date_created: 2021-11-26T08:21:34Z
date_published: 2020-08-07T00:00:00Z
date_updated: 2021-11-26T08:58:33Z
day: '07'
doi: 10.1126/science.aaz2532
extern: '1'
external_id:
pmid:
- '32764038'
intvolume: ' 369'
issue: '6504'
keyword:
- multidisciplinary
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.biorxiv.org/content/10.1101/774273v1
month: '08'
oa: 1
oa_version: Preprint
pmid: 1
publication: Science
publication_identifier:
eissn:
- 1095-9203
issn:
- 0036-8075
publication_status: published
publisher: American Association for the Advancement of Science
quality_controlled: '1'
scopus_import: '1'
status: public
title: The proteasome controls ESCRT-III–mediated cell division in an archaeon
type: journal_article
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
volume: 369
year: '2020'
...
---
_id: '10618'
abstract:
- lang: eng
text: Magnetism typically arises from the joint effect of Fermi statistics and repulsive
Coulomb interactions, which favours ground states with non-zero electron spin.
As a result, controlling spin magnetism with electric fields—a longstanding technological
goal in spintronics and multiferroics1,2—can be achieved only indirectly. Here
we experimentally demonstrate direct electric-field control of magnetic states
in an orbital Chern insulator3,4,5,6, a magnetic system in which non-trivial band
topology favours long-range order of orbital angular momentum but the spins are
thought to remain disordered7,8,9,10,11,12,13,14. We use van der Waals heterostructures
consisting of a graphene monolayer rotationally faulted with respect to a Bernal-stacked
bilayer to realize narrow and topologically non-trivial valley-projected moiré
minibands15,16,17. At fillings of one and three electrons per moiré unit cell
within these bands, we observe quantized anomalous Hall effects18 with transverse
resistance approximately equal to h/2e2 (where h is Planck’s constant and e is
the charge on the electron), which is indicative of spontaneous polarization of
the system into a single-valley-projected band with a Chern number equal to two.
At a filling of three electrons per moiré unit cell, we find that the sign of
the quantum anomalous Hall effect can be reversed via field-effect control of
the chemical potential; moreover, this transition is hysteretic, which we use
to demonstrate non-volatile electric-field-induced reversal of the magnetic state.
A theoretical analysis19 indicates that the effect arises from the topological
edge states, which drive a change in sign of the magnetization and thus a reversal
in the favoured magnetic state. Voltage control of magnetic states can be used
to electrically pattern non-volatile magnetic-domain structures hosting chiral
edge states, with applications ranging from reconfigurable microwave circuit elements
to ultralow-power magnetic memories.
acknowledgement: We acknowledge discussions with J. Checkelsky, S. Chen, C. Dean,
M. Yankowitz, D. Reilly, I. Sodemann and M. Zaletel. Work at UCSB was primarily
supported by the ARO under MURI W911NF-16-1-0361. Measurements of twisted bilayer
graphene (Extended Data Fig. 8) and measurements at elevated temperatures (Extended
Data Fig. 3) were supported by a SEED grant and made use of shared facilities of
the UCSB MRSEC (NSF DMR 1720256), a member of the Materials Research Facilities
Network (www.mrfn.org). A.F.Y. acknowledges the support of the David and Lucille
Packard Foundation under award 2016-65145. A.H.M. and J.Z. were supported by the
National Science Foundation through the Center for Dynamics and Control of Materials,
an NSF MRSEC under Cooperative Agreement number DMR-1720595, and by the Welch Foundation
under grant TBF1473. C.L.T. acknowledges support from the Hertz Foundation and from
the National Science Foundation Graduate Research Fellowship Program under grant
1650114. K.W. and T.T. acknowledge support from the Elemental Strategy Initiative
conducted by the MEXT, Japan, Grant Number JPMXP0112101001, JSPS KAKENHI grant numbers
JP20H00354 and the CREST(JPMJCR15F3), JST.
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Hryhoriy
full_name: Polshyn, Hryhoriy
id: edfc7cb1-526e-11ec-b05a-e6ecc27e4e48
last_name: Polshyn
orcid: 0000-0001-8223-8896
- first_name: J.
full_name: Zhu, J.
last_name: Zhu
- first_name: M. A.
full_name: Kumar, M. A.
last_name: Kumar
- first_name: Y.
full_name: Zhang, Y.
last_name: Zhang
- first_name: F.
full_name: Yang, F.
last_name: Yang
- first_name: C. L.
full_name: Tschirhart, C. L.
last_name: Tschirhart
- first_name: M.
full_name: Serlin, M.
last_name: Serlin
- first_name: K.
full_name: Watanabe, K.
last_name: Watanabe
- first_name: T.
full_name: Taniguchi, T.
last_name: Taniguchi
- first_name: A. H.
full_name: MacDonald, A. H.
last_name: MacDonald
- first_name: A. F.
full_name: Young, A. F.
last_name: Young
citation:
ama: Polshyn H, Zhu J, Kumar MA, et al. Electrical switching of magnetic order in
an orbital Chern insulator. Nature. 2020;588(7836):66-70. doi:10.1038/s41586-020-2963-8
apa: Polshyn, H., Zhu, J., Kumar, M. A., Zhang, Y., Yang, F., Tschirhart, C. L.,
… Young, A. F. (2020). Electrical switching of magnetic order in an orbital Chern
insulator. Nature. Springer Nature. https://doi.org/10.1038/s41586-020-2963-8
chicago: Polshyn, Hryhoriy, J. Zhu, M. A. Kumar, Y. Zhang, F. Yang, C. L. Tschirhart,
M. Serlin, et al. “Electrical Switching of Magnetic Order in an Orbital Chern
Insulator.” Nature. Springer Nature, 2020. https://doi.org/10.1038/s41586-020-2963-8.
ieee: H. Polshyn et al., “Electrical switching of magnetic order in an orbital
Chern insulator,” Nature, vol. 588, no. 7836. Springer Nature, pp. 66–70,
2020.
ista: Polshyn H, Zhu J, Kumar MA, Zhang Y, Yang F, Tschirhart CL, Serlin M, Watanabe
K, Taniguchi T, MacDonald AH, Young AF. 2020. Electrical switching of magnetic
order in an orbital Chern insulator. Nature. 588(7836), 66–70.
mla: Polshyn, Hryhoriy, et al. “Electrical Switching of Magnetic Order in an Orbital
Chern Insulator.” Nature, vol. 588, no. 7836, Springer Nature, 2020, pp.
66–70, doi:10.1038/s41586-020-2963-8.
short: H. Polshyn, J. Zhu, M.A. Kumar, Y. Zhang, F. Yang, C.L. Tschirhart, M. Serlin,
K. Watanabe, T. Taniguchi, A.H. MacDonald, A.F. Young, Nature 588 (2020) 66–70.
date_created: 2022-01-13T14:12:17Z
date_published: 2020-11-23T00:00:00Z
date_updated: 2022-01-13T14:21:04Z
day: '23'
doi: 10.1038/s41586-020-2963-8
extern: '1'
external_id:
arxiv:
- '2004.11353'
pmid:
- '33230333'
intvolume: ' 588'
issue: '7836'
keyword:
- multidisciplinary
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2004.11353
month: '11'
oa: 1
oa_version: Preprint
page: 66-70
pmid: 1
publication: Nature
publication_identifier:
eissn:
- 1476-4687
issn:
- 0028-0836
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Electrical switching of magnetic order in an orbital Chern insulator
type: journal_article
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
volume: 588
year: '2020'
...
---
_id: '12188'
abstract:
- lang: eng
text: Molecular mechanisms enabling the switching and maintenance of epigenetic
states are not fully understood. Distinct histone modifications are often associated
with ON/OFF epigenetic states, but how these states are stably maintained through
DNA replication, yet in certain situations switch from one to another remains
unclear. Here, we address this problem through identification of Arabidopsis INCURVATA11
(ICU11) as a Polycomb Repressive Complex 2 accessory protein. ICU11 robustly immunoprecipitated
in vivo with PRC2 core components and the accessory proteins, EMBRYONIC FLOWER
1 (EMF1), LIKE HETEROCHROMATIN PROTEIN1 (LHP1), and TELOMERE_REPEAT_BINDING FACTORS
(TRBs). ICU11 encodes a 2-oxoglutarate-dependent dioxygenase, an activity associated
with histone demethylation in other organisms, and mutant plants show defects
in multiple aspects of the Arabidopsis epigenome. To investigate its primary molecular
function we identified the Arabidopsis FLOWERING LOCUS C (FLC) as a direct target
and found icu11 disrupted the cold-induced, Polycomb-mediated silencing underlying
vernalization. icu11 prevented reduction in H3K36me3 levels normally seen during
the early cold phase, supporting a role for ICU11 in H3K36me3 demethylation. This
was coincident with an attenuation of H3K27me3 at the internal nucleation site
in FLC, and reduction in H3K27me3 levels across the body of the gene after plants
were returned to the warm. Thus, ICU11 is required for the cold-induced epigenetic
switching between the mutually exclusive chromatin states at FLC, from the active
H3K36me3 state to the silenced H3K27me3 state. These data support the importance
of physical coupling of histone modification activities to promote epigenetic
switching between opposing chromatin states.
acknowledgement: We would like to thank Scott Berry for help with ICU-GFP nuclear
localization microscopy, Hao Yu and Lisha Shen for assistance with 6mA DNA methylation
analysis, Donna Gibson for graphic design assistance, and members of the C.D. and
Howard laboratories for helpful discussions. This work was funded by the European
Research Council grants to “MEXTIM” (to C.D.) and “SexMeth” (to X. Feng), by the
Biotechnological and Biological Sciences Research Council (BBSRC) Institute Strategic
Programmes GRO (BB/J004588/1), GEN (BB/P013511/1), BBSRC grant (to X. Feng) (BB/S009620/1),
and the Marie Sklodowska–Curie Postdoctoral Fellowships “UNRAVEL” (to R.H.B.) and
"WISDOM" (to X. Fang). Additional funding via the Wellcome Trust through a Senior
Research Fellowship (to J.R.) (103139) and a multiuser equipment grant (108504).
The Wellcome Centre for Cell Biology is supported by core funding from the Wellcome
Trust (203149).
article_processing_charge: No
article_type: original
author:
- first_name: Rebecca H.
full_name: Bloomer, Rebecca H.
last_name: Bloomer
- first_name: Claire E.
full_name: Hutchison, Claire E.
last_name: Hutchison
- first_name: Isabel
full_name: Bäurle, Isabel
last_name: Bäurle
- first_name: James
full_name: Walker, James
last_name: Walker
- first_name: Xiaofeng
full_name: Fang, Xiaofeng
last_name: Fang
- first_name: Pumi
full_name: Perera, Pumi
last_name: Perera
- first_name: Christos N.
full_name: Velanis, Christos N.
last_name: Velanis
- first_name: Serin
full_name: Gümüs, Serin
last_name: Gümüs
- first_name: Christos
full_name: Spanos, Christos
last_name: Spanos
- first_name: Juri
full_name: Rappsilber, Juri
last_name: Rappsilber
- first_name: Xiaoqi
full_name: Feng, Xiaoqi
id: e0164712-22ee-11ed-b12a-d80fcdf35958
last_name: Feng
orcid: 0000-0002-4008-1234
- first_name: Justin
full_name: Goodrich, Justin
last_name: Goodrich
- first_name: Caroline
full_name: Dean, Caroline
last_name: Dean
citation:
ama: Bloomer RH, Hutchison CE, Bäurle I, et al. The Arabidopsis epigenetic regulator
ICU11 as an accessory protein of polycomb repressive complex 2. Proceedings
of the National Academy of Sciences. 2020;117(28):16660-16666. doi:10.1073/pnas.1920621117
apa: Bloomer, R. H., Hutchison, C. E., Bäurle, I., Walker, J., Fang, X., Perera,
P., … Dean, C. (2020). The Arabidopsis epigenetic regulator ICU11 as an accessory
protein of polycomb repressive complex 2. Proceedings of the National Academy
of Sciences. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.1920621117
chicago: Bloomer, Rebecca H., Claire E. Hutchison, Isabel Bäurle, James Walker,
Xiaofeng Fang, Pumi Perera, Christos N. Velanis, et al. “The Arabidopsis Epigenetic
Regulator ICU11 as an Accessory Protein of Polycomb Repressive Complex 2.” Proceedings
of the National Academy of Sciences. Proceedings of the National Academy of
Sciences, 2020. https://doi.org/10.1073/pnas.1920621117.
ieee: R. H. Bloomer et al., “The Arabidopsis epigenetic regulator ICU11
as an accessory protein of polycomb repressive complex 2,” Proceedings of the
National Academy of Sciences, vol. 117, no. 28. Proceedings of the National
Academy of Sciences, pp. 16660–16666, 2020.
ista: Bloomer RH, Hutchison CE, Bäurle I, Walker J, Fang X, Perera P, Velanis CN,
Gümüs S, Spanos C, Rappsilber J, Feng X, Goodrich J, Dean C. 2020. The Arabidopsis
epigenetic regulator ICU11 as an accessory protein of polycomb repressive complex
2. Proceedings of the National Academy of Sciences. 117(28), 16660–16666.
mla: Bloomer, Rebecca H., et al. “The Arabidopsis Epigenetic Regulator ICU11 as
an Accessory Protein of Polycomb Repressive Complex 2.” Proceedings of the
National Academy of Sciences, vol. 117, no. 28, Proceedings of the National
Academy of Sciences, 2020, pp. 16660–66, doi:10.1073/pnas.1920621117.
short: R.H. Bloomer, C.E. Hutchison, I. Bäurle, J. Walker, X. Fang, P. Perera, C.N.
Velanis, S. Gümüs, C. Spanos, J. Rappsilber, X. Feng, J. Goodrich, C. Dean, Proceedings
of the National Academy of Sciences 117 (2020) 16660–16666.
date_created: 2023-01-16T09:15:44Z
date_published: 2020-05-22T00:00:00Z
date_updated: 2023-05-08T10:53:55Z
day: '22'
ddc:
- '580'
department:
- _id: XiFe
doi: 10.1073/pnas.1920621117
extern: '1'
external_id:
pmid:
- '32601198'
file:
- access_level: open_access
checksum: cedee184cb12f454f2fba4158ff47db9
content_type: application/pdf
creator: alisjak
date_created: 2023-02-07T11:29:55Z
date_updated: 2023-02-07T11:29:55Z
file_id: '12526'
file_name: 2020_PNAS_Bloomer.pdf
file_size: 1105414
relation: main_file
success: 1
file_date_updated: 2023-02-07T11:29:55Z
has_accepted_license: '1'
intvolume: ' 117'
issue: '28'
keyword:
- Multidisciplinary
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7368280/
month: '05'
oa: 1
oa_version: Published Version
page: 16660-16666
pmid: 1
publication: Proceedings of the National Academy of Sciences
publication_identifier:
issn:
- 0027-8424
- 1091-6490
publication_status: published
publisher: Proceedings of the National Academy of Sciences
quality_controlled: '1'
scopus_import: '1'
status: public
title: The Arabidopsis epigenetic regulator ICU11 as an accessory protein of polycomb
repressive complex 2
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: 117
year: '2020'
...
---
_id: '14001'
abstract:
- lang: eng
text: Chiral molecules interact and react differently with other chiral objects,
depending on their handedness. Therefore, it is essential to understand and ultimately
control the evolution of molecular chirality during chemical reactions. Although
highly sophisticated techniques for the controlled synthesis of chiral molecules
have been developed, the observation of chirality on the natural femtosecond time
scale of a chemical reaction has so far remained out of reach in the gas phase.
Here, we demonstrate a general experimental technique, based on high-harmonic
generation in tailored laser fields, and apply it to probe the time evolution
of molecular chirality during the photodissociation of 2-iodobutane. These measurements
show a change in sign and a pronounced increase in the magnitude of the chiral
response over the first 100 fs, followed by its decay within less than 500 fs,
revealing the photodissociation to achiral products. The observed time evolution
is explained in terms of the variation of the electric and magnetic transition-dipole
moments between the lowest electronic states of the cation as a function of the
reaction coordinate. These results open the path to investigations of the chirality
of molecular-reaction pathways, light-induced chirality in chemical processes,
and the control of molecular chirality through tailored laser pulses.
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Denitsa Rangelova
full_name: Baykusheva, Denitsa Rangelova
id: 71b4d059-2a03-11ee-914d-dfa3beed6530
last_name: Baykusheva
- first_name: Daniel
full_name: Zindel, Daniel
last_name: Zindel
- first_name: Vít
full_name: Svoboda, Vít
last_name: Svoboda
- first_name: Elias
full_name: Bommeli, Elias
last_name: Bommeli
- first_name: Manuel
full_name: Ochsner, Manuel
last_name: Ochsner
- first_name: Andres
full_name: Tehlar, Andres
last_name: Tehlar
- first_name: Hans Jakob
full_name: Wörner, Hans Jakob
last_name: Wörner
citation:
ama: Baykusheva DR, Zindel D, Svoboda V, et al. Real-time probing of chirality during
a chemical reaction. Proceedings of the National Academy of Sciences. 2019;116(48):23923-23929.
doi:10.1073/pnas.1907189116
apa: Baykusheva, D. R., Zindel, D., Svoboda, V., Bommeli, E., Ochsner, M., Tehlar,
A., & Wörner, H. J. (2019). Real-time probing of chirality during a chemical
reaction. Proceedings of the National Academy of Sciences. Proceedings
of the National Academy of Sciences. https://doi.org/10.1073/pnas.1907189116
chicago: Baykusheva, Denitsa Rangelova, Daniel Zindel, Vít Svoboda, Elias Bommeli,
Manuel Ochsner, Andres Tehlar, and Hans Jakob Wörner. “Real-Time Probing of Chirality
during a Chemical Reaction.” Proceedings of the National Academy of Sciences.
Proceedings of the National Academy of Sciences, 2019. https://doi.org/10.1073/pnas.1907189116.
ieee: D. R. Baykusheva et al., “Real-time probing of chirality during a chemical
reaction,” Proceedings of the National Academy of Sciences, vol. 116, no.
48. Proceedings of the National Academy of Sciences, pp. 23923–23929, 2019.
ista: Baykusheva DR, Zindel D, Svoboda V, Bommeli E, Ochsner M, Tehlar A, Wörner
HJ. 2019. Real-time probing of chirality during a chemical reaction. Proceedings
of the National Academy of Sciences. 116(48), 23923–23929.
mla: Baykusheva, Denitsa Rangelova, et al. “Real-Time Probing of Chirality during
a Chemical Reaction.” Proceedings of the National Academy of Sciences,
vol. 116, no. 48, Proceedings of the National Academy of Sciences, 2019, pp. 23923–29,
doi:10.1073/pnas.1907189116.
short: D.R. Baykusheva, D. Zindel, V. Svoboda, E. Bommeli, M. Ochsner, A. Tehlar,
H.J. Wörner, Proceedings of the National Academy of Sciences 116 (2019) 23923–23929.
date_created: 2023-08-09T13:10:36Z
date_published: 2019-11-13T00:00:00Z
date_updated: 2023-08-22T07:40:05Z
day: '13'
doi: 10.1073/pnas.1907189116
extern: '1'
external_id:
arxiv:
- '1906.10818'
pmid:
- '31723044'
intvolume: ' 116'
issue: '48'
keyword:
- Multidisciplinary
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1073/pnas.1907189116
month: '11'
oa: 1
oa_version: Published Version
page: 23923-23929
pmid: 1
publication: Proceedings of the National Academy of Sciences
publication_identifier:
eissn:
- 1091-6490
issn:
- 0027-8424
publication_status: published
publisher: Proceedings of the National Academy of Sciences
quality_controlled: '1'
scopus_import: '1'
status: public
title: Real-time probing of chirality during a chemical reaction
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 116
year: '2019'
...
---
_id: '9460'
abstract:
- lang: eng
text: Epigenetic reprogramming is required for proper regulation of gene expression
in eukaryotic organisms. In Arabidopsis, active DNA demethylation is crucial for
seed viability, pollen function, and successful reproduction. The DEMETER (DME)
DNA glycosylase initiates localized DNA demethylation in vegetative and central
cells, so-called companion cells that are adjacent to sperm and egg gametes, respectively.
In rice, the central cell genome displays local DNA hypomethylation, suggesting
that active DNA demethylation also occurs in rice; however, the enzyme responsible
for this process is unknown. One candidate is the rice REPRESSOR OF SILENCING
1a (ROS1a) gene, which is related to DME and is essential for rice seed viability
and pollen function. Here, we report genome-wide analyses of DNA methylation in
wild-type and ros1a mutant sperm and vegetative cells. We find that the rice vegetative
cell genome is locally hypomethylated compared with sperm by a process that requires
ROS1a activity. We show that many ROS1a target sequences in the vegetative cell
are hypomethylated in the rice central cell, suggesting that ROS1a also demethylates
the central cell genome. Similar to Arabidopsis, we show that sperm non-CG methylation
is indirectly promoted by DNA demethylation in the vegetative cell. These results
reveal that DNA glycosylase-mediated DNA demethylation processes are conserved
in Arabidopsis and rice, plant species that diverged 150 million years ago. Finally,
although global non-CG methylation levels of sperm and egg differ, the maternal
and paternal embryo genomes show similar non-CG methylation levels, suggesting
that rice gamete genomes undergo dynamic DNA methylation reprogramming after cell
fusion.
article_processing_charge: No
article_type: original
author:
- first_name: M. Yvonne
full_name: Kim, M. Yvonne
last_name: Kim
- first_name: Akemi
full_name: Ono, Akemi
last_name: Ono
- first_name: Stefan
full_name: Scholten, Stefan
last_name: Scholten
- first_name: Tetsu
full_name: Kinoshita, Tetsu
last_name: Kinoshita
- first_name: Daniel
full_name: Zilberman, Daniel
id: 6973db13-dd5f-11ea-814e-b3e5455e9ed1
last_name: Zilberman
orcid: 0000-0002-0123-8649
- first_name: Takashi
full_name: Okamoto, Takashi
last_name: Okamoto
- first_name: Robert L.
full_name: Fischer, Robert L.
last_name: Fischer
citation:
ama: Kim MY, Ono A, Scholten S, et al. DNA demethylation by ROS1a in rice vegetative
cells promotes methylation in sperm. Proceedings of the National Academy of
Sciences. 2019;116(19):9652-9657. doi:10.1073/pnas.1821435116
apa: Kim, M. Y., Ono, A., Scholten, S., Kinoshita, T., Zilberman, D., Okamoto, T.,
& Fischer, R. L. (2019). DNA demethylation by ROS1a in rice vegetative cells
promotes methylation in sperm. Proceedings of the National Academy of Sciences.
National Academy of Sciences. https://doi.org/10.1073/pnas.1821435116
chicago: Kim, M. Yvonne, Akemi Ono, Stefan Scholten, Tetsu Kinoshita, Daniel Zilberman,
Takashi Okamoto, and Robert L. Fischer. “DNA Demethylation by ROS1a in Rice Vegetative
Cells Promotes Methylation in Sperm.” Proceedings of the National Academy of
Sciences. National Academy of Sciences, 2019. https://doi.org/10.1073/pnas.1821435116.
ieee: M. Y. Kim et al., “DNA demethylation by ROS1a in rice vegetative cells
promotes methylation in sperm,” Proceedings of the National Academy of Sciences,
vol. 116, no. 19. National Academy of Sciences, pp. 9652–9657, 2019.
ista: Kim MY, Ono A, Scholten S, Kinoshita T, Zilberman D, Okamoto T, Fischer RL.
2019. DNA demethylation by ROS1a in rice vegetative cells promotes methylation
in sperm. Proceedings of the National Academy of Sciences. 116(19), 9652–9657.
mla: Kim, M. Yvonne, et al. “DNA Demethylation by ROS1a in Rice Vegetative Cells
Promotes Methylation in Sperm.” Proceedings of the National Academy of Sciences,
vol. 116, no. 19, National Academy of Sciences, 2019, pp. 9652–57, doi:10.1073/pnas.1821435116.
short: M.Y. Kim, A. Ono, S. Scholten, T. Kinoshita, D. Zilberman, T. Okamoto, R.L.
Fischer, Proceedings of the National Academy of Sciences 116 (2019) 9652–9657.
date_created: 2021-06-04T12:38:20Z
date_published: 2019-05-07T00:00:00Z
date_updated: 2021-12-14T07:52:30Z
day: '07'
ddc:
- '580'
department:
- _id: DaZi
doi: 10.1073/pnas.1821435116
extern: '1'
external_id:
pmid:
- '31000601'
file:
- access_level: open_access
checksum: 5b0ae3779b8b21b5223bd2d3cceede3a
content_type: application/pdf
creator: asandaue
date_created: 2021-06-04T12:50:47Z
date_updated: 2021-06-04T12:50:47Z
file_id: '9461'
file_name: 2019_PNAS_Kim.pdf
file_size: 1142540
relation: main_file
success: 1
file_date_updated: 2021-06-04T12:50:47Z
has_accepted_license: '1'
intvolume: ' 116'
issue: '19'
keyword:
- Multidisciplinary
language:
- iso: eng
month: '05'
oa: 1
oa_version: Published Version
page: 9652-9657
pmid: 1
publication: Proceedings of the National Academy of Sciences
publication_identifier:
eissn:
- 1091-6490
issn:
- 0027-8424
publication_status: published
publisher: National Academy of Sciences
quality_controlled: '1'
scopus_import: '1'
status: public
title: DNA demethylation by ROS1a in rice vegetative cells promotes methylation in
sperm
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: 8b945eb4-e2f2-11eb-945a-df72226e66a9
volume: 116
year: '2019'
...
---
_id: '10619'
abstract:
- lang: eng
text: The quantum anomalous Hall (QAH) effect combines topology and magnetism to
produce precisely quantized Hall resistance at zero magnetic field. We report
the observation of a QAH effect in twisted bilayer graphene aligned to hexagonal
boron nitride. The effect is driven by intrinsic strong interactions, which polarize
the electrons into a single spin- and valley-resolved moiré miniband with Chern
number C = 1. In contrast to magnetically doped systems, the measured transport
energy gap is larger than the Curie temperature for magnetic ordering, and quantization
to within 0.1% of the von Klitzing constant persists to temperatures of several
kelvin at zero magnetic field. Electrical currents as small as 1 nanoampere controllably
switch the magnetic order between states of opposite polarization, forming an
electrically rewritable magnetic memory.
acknowledgement: The authors acknowledge discussions with A. Macdonald, Y. Saito,
and M. Zaletel.
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: M.
full_name: Serlin, M.
last_name: Serlin
- first_name: C. L.
full_name: Tschirhart, C. L.
last_name: Tschirhart
- first_name: Hryhoriy
full_name: Polshyn, Hryhoriy
id: edfc7cb1-526e-11ec-b05a-e6ecc27e4e48
last_name: Polshyn
orcid: 0000-0001-8223-8896
- first_name: Y.
full_name: Zhang, Y.
last_name: Zhang
- first_name: J.
full_name: Zhu, J.
last_name: Zhu
- first_name: K.
full_name: Watanabe, K.
last_name: Watanabe
- first_name: T.
full_name: Taniguchi, T.
last_name: Taniguchi
- first_name: L.
full_name: Balents, L.
last_name: Balents
- first_name: A. F.
full_name: Young, A. F.
last_name: Young
citation:
ama: Serlin M, Tschirhart CL, Polshyn H, et al. Intrinsic quantized anomalous Hall
effect in a moiré heterostructure. Science. 2019;367(6480):900-903. doi:10.1126/science.aay5533
apa: Serlin, M., Tschirhart, C. L., Polshyn, H., Zhang, Y., Zhu, J., Watanabe, K.,
… Young, A. F. (2019). Intrinsic quantized anomalous Hall effect in a moiré heterostructure.
Science. American Association for the Advancement of Science. https://doi.org/10.1126/science.aay5533
chicago: Serlin, M., C. L. Tschirhart, Hryhoriy Polshyn, Y. Zhang, J. Zhu, K. Watanabe,
T. Taniguchi, L. Balents, and A. F. Young. “Intrinsic Quantized Anomalous Hall
Effect in a Moiré Heterostructure.” Science. American Association for the
Advancement of Science, 2019. https://doi.org/10.1126/science.aay5533.
ieee: M. Serlin et al., “Intrinsic quantized anomalous Hall effect in a moiré
heterostructure,” Science, vol. 367, no. 6480. American Association for
the Advancement of Science, pp. 900–903, 2019.
ista: Serlin M, Tschirhart CL, Polshyn H, Zhang Y, Zhu J, Watanabe K, Taniguchi
T, Balents L, Young AF. 2019. Intrinsic quantized anomalous Hall effect in a moiré
heterostructure. Science. 367(6480), 900–903.
mla: Serlin, M., et al. “Intrinsic Quantized Anomalous Hall Effect in a Moiré Heterostructure.”
Science, vol. 367, no. 6480, American Association for the Advancement of
Science, 2019, pp. 900–03, doi:10.1126/science.aay5533.
short: M. Serlin, C.L. Tschirhart, H. Polshyn, Y. Zhang, J. Zhu, K. Watanabe, T.
Taniguchi, L. Balents, A.F. Young, Science 367 (2019) 900–903.
date_created: 2022-01-13T14:21:32Z
date_published: 2019-12-19T00:00:00Z
date_updated: 2023-02-21T16:00:09Z
day: '19'
doi: 10.1126/science.aay5533
extern: '1'
external_id:
arxiv:
- '1907.00261'
pmid:
- '31857492'
intvolume: ' 367'
issue: '6480'
keyword:
- multidisciplinary
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1907.00261
month: '12'
oa: 1
oa_version: Preprint
page: 900-903
pmid: 1
publication: Science
publication_identifier:
eissn:
- 1095-9203
issn:
- 0036-8075
publication_status: published
publisher: American Association for the Advancement of Science
quality_controlled: '1'
related_material:
record:
- id: '10697'
relation: other
status: public
- id: '10698'
relation: other
status: public
- id: '10699'
relation: other
status: public
scopus_import: '1'
status: public
title: Intrinsic quantized anomalous Hall effect in a moiré heterostructure
type: journal_article
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
volume: 367
year: '2019'
...
---
_id: '10625'
abstract:
- lang: eng
text: The discovery of superconductivity and exotic insulating phases in twisted
bilayer graphene has established this material as a model system of strongly correlated
electrons. To achieve superconductivity, the two layers of graphene need to be
at a very precise angle with respect to each other. Yankowitz et al. now show
that another experimental knob, hydrostatic pressure, can be used to tune the
phase diagram of twisted bilayer graphene (see the Perspective by Feldman). Applying
pressure increased the coupling between the layers, which shifted the superconducting
transition to higher angles and somewhat higher temperatures.
acknowledgement: We thank J. Zhu and H. Zhou for experimental assistance and D. Shahar,
A. Millis, O. Vafek, M. Zaletel, L. Balents, C. Xu, A. Bernevig, L. Fu, M. Koshino,
and P. Moon for helpful discussions.
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Matthew
full_name: Yankowitz, Matthew
last_name: Yankowitz
- first_name: Shaowen
full_name: Chen, Shaowen
last_name: Chen
- first_name: Hryhoriy
full_name: Polshyn, Hryhoriy
id: edfc7cb1-526e-11ec-b05a-e6ecc27e4e48
last_name: Polshyn
orcid: 0000-0001-8223-8896
- first_name: Yuxuan
full_name: Zhang, Yuxuan
last_name: Zhang
- first_name: K.
full_name: Watanabe, K.
last_name: Watanabe
- first_name: T.
full_name: Taniguchi, T.
last_name: Taniguchi
- first_name: David
full_name: Graf, David
last_name: Graf
- first_name: Andrea F.
full_name: Young, Andrea F.
last_name: Young
- first_name: Cory R.
full_name: Dean, Cory R.
last_name: Dean
citation:
ama: Yankowitz M, Chen S, Polshyn H, et al. Tuning superconductivity in twisted
bilayer graphene. Science. 2019;363(6431):1059-1064. doi:10.1126/science.aav1910
apa: Yankowitz, M., Chen, S., Polshyn, H., Zhang, Y., Watanabe, K., Taniguchi, T.,
… Dean, C. R. (2019). Tuning superconductivity in twisted bilayer graphene. Science.
American Association for the Advancement of Science (AAAS). https://doi.org/10.1126/science.aav1910
chicago: Yankowitz, Matthew, Shaowen Chen, Hryhoriy Polshyn, Yuxuan Zhang, K. Watanabe,
T. Taniguchi, David Graf, Andrea F. Young, and Cory R. Dean. “Tuning Superconductivity
in Twisted Bilayer Graphene.” Science. American Association for the Advancement
of Science (AAAS), 2019. https://doi.org/10.1126/science.aav1910.
ieee: M. Yankowitz et al., “Tuning superconductivity in twisted bilayer graphene,”
Science, vol. 363, no. 6431. American Association for the Advancement of
Science (AAAS), pp. 1059–1064, 2019.
ista: Yankowitz M, Chen S, Polshyn H, Zhang Y, Watanabe K, Taniguchi T, Graf D,
Young AF, Dean CR. 2019. Tuning superconductivity in twisted bilayer graphene.
Science. 363(6431), 1059–1064.
mla: Yankowitz, Matthew, et al. “Tuning Superconductivity in Twisted Bilayer Graphene.”
Science, vol. 363, no. 6431, American Association for the Advancement of
Science (AAAS), 2019, pp. 1059–64, doi:10.1126/science.aav1910.
short: M. Yankowitz, S. Chen, H. Polshyn, Y. Zhang, K. Watanabe, T. Taniguchi, D.
Graf, A.F. Young, C.R. Dean, Science 363 (2019) 1059–1064.
date_created: 2022-01-14T12:14:58Z
date_published: 2019-01-24T00:00:00Z
date_updated: 2022-01-14T13:48:32Z
day: '24'
doi: 10.1126/science.aav1910
extern: '1'
external_id:
arxiv:
- '1808.07865'
pmid:
- '30679385 '
intvolume: ' 363'
issue: '6431'
keyword:
- multidisciplinary
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1808.07865
month: '01'
oa: 1
oa_version: Preprint
page: 1059-1064
pmid: 1
publication: Science
publication_identifier:
eissn:
- 1095-9203
issn:
- 0036-8075
publication_status: published
publisher: American Association for the Advancement of Science (AAAS)
quality_controlled: '1'
scopus_import: '1'
status: public
title: Tuning superconductivity in twisted bilayer graphene
type: journal_article
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
volume: 363
year: '2019'
...
---
_id: '8618'
abstract:
- lang: eng
text: The reversibly switchable fluorescent proteins (RSFPs) commonly used for RESOLFT
nanoscopy have been developed from fluorescent proteins of the GFP superfamily.
These proteins are bright, but exhibit several drawbacks such as relatively large
size, oxygen-dependence, sensitivity to low pH, and limited switching speed. Therefore,
RSFPs from other origins with improved properties need to be explored. Here, we
report the development of two RSFPs based on the LOV domain of the photoreceptor
protein YtvA from Bacillus subtilis. LOV domains obtain their fluorescence by
association with the abundant cellular cofactor flavin mononucleotide (FMN). Under
illumination with blue and ultraviolet light, they undergo a photocycle, making
these proteins inherently photoswitchable. Our first improved variant, rsLOV1,
can be used for RESOLFT imaging, whereas rsLOV2 proved useful for STED nanoscopy
of living cells with a resolution of down to 50 nm. In addition to their smaller
size compared to GFP-related proteins (17 kDa instead of 27 kDa) and their usability
at low pH, rsLOV1 and rsLOV2 exhibit faster switching kinetics, switching on and
off 3 times faster than rsEGFP2, the fastest-switching RSFP reported to date.
Therefore, LOV-domain-based RSFPs have potential for applications where the switching
speed of GFP-based proteins is limiting.
article_number: '2724'
article_processing_charge: No
article_type: original
author:
- first_name: Carola
full_name: Gregor, Carola
last_name: Gregor
- first_name: Sven C.
full_name: Sidenstein, Sven C.
last_name: Sidenstein
- first_name: Martin
full_name: Andresen, Martin
last_name: Andresen
- first_name: Steffen J.
full_name: Sahl, Steffen J.
last_name: Sahl
- first_name: Johann G
full_name: Danzl, Johann G
id: 42EFD3B6-F248-11E8-B48F-1D18A9856A87
last_name: Danzl
orcid: 0000-0001-8559-3973
- first_name: Stefan W.
full_name: Hell, Stefan W.
last_name: Hell
citation:
ama: Gregor C, Sidenstein SC, Andresen M, Sahl SJ, Danzl JG, Hell SW. Novel reversibly
switchable fluorescent proteins for RESOLFT and STED nanoscopy engineered from
the bacterial photoreceptor YtvA. Scientific Reports. 2018;8. doi:10.1038/s41598-018-19947-1
apa: Gregor, C., Sidenstein, S. C., Andresen, M., Sahl, S. J., Danzl, J. G., &
Hell, S. W. (2018). Novel reversibly switchable fluorescent proteins for RESOLFT
and STED nanoscopy engineered from the bacterial photoreceptor YtvA. Scientific
Reports. Springer Nature. https://doi.org/10.1038/s41598-018-19947-1
chicago: Gregor, Carola, Sven C. Sidenstein, Martin Andresen, Steffen J. Sahl, Johann
G Danzl, and Stefan W. Hell. “Novel Reversibly Switchable Fluorescent Proteins
for RESOLFT and STED Nanoscopy Engineered from the Bacterial Photoreceptor YtvA.”
Scientific Reports. Springer Nature, 2018. https://doi.org/10.1038/s41598-018-19947-1.
ieee: C. Gregor, S. C. Sidenstein, M. Andresen, S. J. Sahl, J. G. Danzl, and S.
W. Hell, “Novel reversibly switchable fluorescent proteins for RESOLFT and STED
nanoscopy engineered from the bacterial photoreceptor YtvA,” Scientific Reports,
vol. 8. Springer Nature, 2018.
ista: Gregor C, Sidenstein SC, Andresen M, Sahl SJ, Danzl JG, Hell SW. 2018. Novel
reversibly switchable fluorescent proteins for RESOLFT and STED nanoscopy engineered
from the bacterial photoreceptor YtvA. Scientific Reports. 8, 2724.
mla: Gregor, Carola, et al. “Novel Reversibly Switchable Fluorescent Proteins for
RESOLFT and STED Nanoscopy Engineered from the Bacterial Photoreceptor YtvA.”
Scientific Reports, vol. 8, 2724, Springer Nature, 2018, doi:10.1038/s41598-018-19947-1.
short: C. Gregor, S.C. Sidenstein, M. Andresen, S.J. Sahl, J.G. Danzl, S.W. Hell,
Scientific Reports 8 (2018).
date_created: 2020-10-06T16:33:37Z
date_published: 2018-02-09T00:00:00Z
date_updated: 2023-09-19T15:04:49Z
day: '09'
ddc:
- '570'
department:
- _id: JoDa
doi: 10.1038/s41598-018-19947-1
external_id:
isi:
- '000424630400037'
pmid:
- '29426833'
file:
- access_level: open_access
checksum: e642080fcbde9584c63544f587c74f03
content_type: application/pdf
creator: dernst
date_created: 2020-10-06T16:35:16Z
date_updated: 2020-10-06T16:35:16Z
file_id: '8619'
file_name: 2018_ScientificReports_Gregor.pdf
file_size: 2818077
relation: main_file
success: 1
file_date_updated: 2020-10-06T16:35:16Z
has_accepted_license: '1'
intvolume: ' 8'
isi: 1
keyword:
- Multidisciplinary
language:
- iso: eng
month: '02'
oa: 1
oa_version: Published Version
pmid: 1
publication: Scientific Reports
publication_identifier:
issn:
- 2045-2322
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
status: public
title: Novel reversibly switchable fluorescent proteins for RESOLFT and STED nanoscopy
engineered from the bacterial photoreceptor YtvA
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'
...