---
_id: '8957'
abstract:
- lang: eng
text: Global tissue tension anisotropy has been shown to trigger stereotypical cell
division orientation by elongating mitotic cells along the main tension axis.
Yet, how tissue tension elongates mitotic cells despite those cells undergoing
mitotic rounding (MR) by globally upregulating cortical actomyosin tension remains
unclear. We addressed this question by taking advantage of ascidian embryos, consisting
of a small number of interphasic and mitotic blastomeres and displaying an invariant
division pattern. We found that blastomeres undergo MR by locally relaxing cortical
tension at their apex, thereby allowing extrinsic pulling forces from neighboring
interphasic blastomeres to polarize their shape and thus division orientation.
Consistently, interfering with extrinsic forces by reducing the contractility
of interphasic blastomeres or disrupting the establishment of asynchronous mitotic
domains leads to aberrant mitotic cell division orientations. Thus, apical relaxation
during MR constitutes a key mechanism by which tissue tension anisotropy controls
stereotypical cell division orientation.
acknowledged_ssus:
- _id: Bio
- _id: NanoFab
acknowledgement: 'We thank members of the Heisenberg and McDougall groups for technical
advice and discussion, Hitoyoshi Yasuo for sharing lab equipment, Lucas Leclère
and Hitoyoshi Yasuo for their comments on a preliminary version of the manuscript,
and Philippe Dru for the Rose plots. We are grateful to the Bioimaging and Nanofabrication
facilities of IST Austria and the Imaging Platform (PIM) and animal facility (CRB)
of Institut de la Mer de Villefranche (IMEV), which is supported by EMBRC-France,
whose French state funds are managed by the ANR within the Investments of the Future
program under reference ANR-10-INBS-0, for continuous support. This work was supported
by a grant from the French Government funding agency Agence National de la Recherche
(ANR “MorCell”: ANR-17-CE 13-002 8).'
article_processing_charge: No
article_type: original
author:
- first_name: Benoit G
full_name: Godard, Benoit G
id: 33280250-F248-11E8-B48F-1D18A9856A87
last_name: Godard
- first_name: Rémi
full_name: Dumollard, Rémi
last_name: Dumollard
- first_name: Edwin
full_name: Munro, Edwin
last_name: Munro
- first_name: Janet
full_name: Chenevert, Janet
last_name: Chenevert
- first_name: Céline
full_name: Hebras, Céline
last_name: Hebras
- first_name: Alex
full_name: Mcdougall, Alex
last_name: Mcdougall
- 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
citation:
ama: Godard BG, Dumollard R, Munro E, et al. Apical relaxation during mitotic rounding
promotes tension-oriented cell division. Developmental Cell. 2020;55(6):695-706.
doi:10.1016/j.devcel.2020.10.016
apa: Godard, B. G., Dumollard, R., Munro, E., Chenevert, J., Hebras, C., Mcdougall,
A., & Heisenberg, C.-P. J. (2020). Apical relaxation during mitotic rounding
promotes tension-oriented cell division. Developmental Cell. Elsevier.
https://doi.org/10.1016/j.devcel.2020.10.016
chicago: Godard, Benoit G, Rémi Dumollard, Edwin Munro, Janet Chenevert, Céline
Hebras, Alex Mcdougall, and Carl-Philipp J Heisenberg. “Apical Relaxation during
Mitotic Rounding Promotes Tension-Oriented Cell Division.” Developmental Cell.
Elsevier, 2020. https://doi.org/10.1016/j.devcel.2020.10.016.
ieee: B. G. Godard et al., “Apical relaxation during mitotic rounding promotes
tension-oriented cell division,” Developmental Cell, vol. 55, no. 6. Elsevier,
pp. 695–706, 2020.
ista: Godard BG, Dumollard R, Munro E, Chenevert J, Hebras C, Mcdougall A, Heisenberg
C-PJ. 2020. Apical relaxation during mitotic rounding promotes tension-oriented
cell division. Developmental Cell. 55(6), 695–706.
mla: Godard, Benoit G., et al. “Apical Relaxation during Mitotic Rounding Promotes
Tension-Oriented Cell Division.” Developmental Cell, vol. 55, no. 6, Elsevier,
2020, pp. 695–706, doi:10.1016/j.devcel.2020.10.016.
short: B.G. Godard, R. Dumollard, E. Munro, J. Chenevert, C. Hebras, A. Mcdougall,
C.-P.J. Heisenberg, Developmental Cell 55 (2020) 695–706.
corr_author: '1'
date_created: 2020-12-20T23:01:19Z
date_published: 2020-12-21T00:00:00Z
date_updated: 2025-07-10T12:01:28Z
day: '21'
department:
- _id: CaHe
doi: 10.1016/j.devcel.2020.10.016
external_id:
isi:
- '000600665700008'
pmid:
- '33207225'
intvolume: ' 55'
isi: 1
issue: '6'
language:
- iso: eng
month: '12'
oa_version: None
page: 695-706
pmid: 1
publication: Developmental Cell
publication_identifier:
eissn:
- 1878-1551
issn:
- 1534-5807
publication_status: published
publisher: Elsevier
quality_controlled: '1'
related_material:
link:
- description: News on IST Homepage
relation: press_release
url: https://ist.ac.at/en/news/relaxing-cell-divisions/
scopus_import: '1'
status: public
title: Apical relaxation during mitotic rounding promotes tension-oriented cell division
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 55
year: '2020'
...
---
_id: '8971'
abstract:
- lang: eng
text: The actin-related protein (Arp)2/3 complex nucleates branched actin filament
networks pivotal for cell migration, endocytosis and pathogen infection. Its activation
is tightly regulated and involves complex structural rearrangements and actin
filament binding, which are yet to be understood. Here, we report a 9.0 Å resolution
structure of the actin filament Arp2/3 complex branch junction in cells using
cryo-electron tomography and subtomogram averaging. This allows us to generate
an accurate model of the active Arp2/3 complex in the branch junction and its
interaction with actin filaments. Notably, our model reveals a previously undescribed
set of interactions of the Arp2/3 complex with the mother filament, significantly
different to the previous branch junction model. Our structure also indicates
a central role for the ArpC3 subunit in stabilizing the active conformation.
acknowledged_ssus:
- _id: ScienComp
- _id: LifeSc
- _id: Bio
- _id: EM-Fac
acknowledgement: "This research was supported by the Scientific Service Units (SSUs)
of IST Austria through resources provided by Scientific Computing (SciComp), the
Life Science Facility (LSF), the BioImaging Facility (BIF), and the Electron Microscopy
Facility (EMF). We also thank Dimitry Tegunov (MPI for Biophysical Chemistry) for
helpful discussions\r\nabout the M software, and Michael Sixt (IST Austria) and
Klemens Rottner (Technical University Braunschweig, HZI Braunschweig) for critical
reading of the manuscript. We also thank Gregory Voth (University of Chicago) for
providing us the MD-derived branch junction model for comparison. The authors acknowledge
support from IST Austria and from the Austrian Science Fund (FWF): M02495 to G.D.
and Austrian Science Fund (FWF): P33367 to F.K.M.S. "
article_number: '6437'
article_processing_charge: No
article_type: original
author:
- first_name: Florian
full_name: Fäßler, Florian
id: 404F5528-F248-11E8-B48F-1D18A9856A87
last_name: Fäßler
orcid: 0000-0001-7149-769X
- first_name: Georgi A
full_name: Dimchev, Georgi A
id: 38C393BE-F248-11E8-B48F-1D18A9856A87
last_name: Dimchev
orcid: 0000-0001-8370-6161
- first_name: Victor-Valentin
full_name: Hodirnau, Victor-Valentin
id: 3661B498-F248-11E8-B48F-1D18A9856A87
last_name: Hodirnau
orcid: 0000-0003-3904-947X
- first_name: William
full_name: Wan, William
last_name: Wan
- first_name: Florian KM
full_name: Schur, Florian KM
id: 48AD8942-F248-11E8-B48F-1D18A9856A87
last_name: Schur
orcid: 0000-0003-4790-8078
citation:
ama: Fäßler F, Dimchev GA, Hodirnau V-V, Wan W, Schur FK. Cryo-electron tomography
structure of Arp2/3 complex in cells reveals new insights into the branch junction.
Nature Communications. 2020;11. doi:10.1038/s41467-020-20286-x
apa: Fäßler, F., Dimchev, G. A., Hodirnau, V.-V., Wan, W., & Schur, F. K. (2020).
Cryo-electron tomography structure of Arp2/3 complex in cells reveals new insights
into the branch junction. Nature Communications. Springer Nature. https://doi.org/10.1038/s41467-020-20286-x
chicago: Fäßler, Florian, Georgi A Dimchev, Victor-Valentin Hodirnau, William Wan,
and Florian KM Schur. “Cryo-Electron Tomography Structure of Arp2/3 Complex in
Cells Reveals New Insights into the Branch Junction.” Nature Communications.
Springer Nature, 2020. https://doi.org/10.1038/s41467-020-20286-x.
ieee: F. Fäßler, G. A. Dimchev, V.-V. Hodirnau, W. Wan, and F. K. Schur, “Cryo-electron
tomography structure of Arp2/3 complex in cells reveals new insights into the
branch junction,” Nature Communications, vol. 11. Springer Nature, 2020.
ista: Fäßler F, Dimchev GA, Hodirnau V-V, Wan W, Schur FK. 2020. Cryo-electron tomography
structure of Arp2/3 complex in cells reveals new insights into the branch junction.
Nature Communications. 11, 6437.
mla: Fäßler, Florian, et al. “Cryo-Electron Tomography Structure of Arp2/3 Complex
in Cells Reveals New Insights into the Branch Junction.” Nature Communications,
vol. 11, 6437, Springer Nature, 2020, doi:10.1038/s41467-020-20286-x.
short: F. Fäßler, G.A. Dimchev, V.-V. Hodirnau, W. Wan, F.K. Schur, Nature Communications
11 (2020).
corr_author: '1'
date_created: 2020-12-23T08:25:45Z
date_published: 2020-12-22T00:00:00Z
date_updated: 2025-04-15T07:52:12Z
day: '22'
ddc:
- '570'
department:
- _id: FlSc
- _id: EM-Fac
doi: 10.1038/s41467-020-20286-x
external_id:
isi:
- '000603078000003'
file:
- access_level: open_access
checksum: 55d43ea0061cc4027ba45e966e1db8cc
content_type: application/pdf
creator: dernst
date_created: 2020-12-28T08:16:10Z
date_updated: 2020-12-28T08:16:10Z
file_id: '8975'
file_name: 2020_NatureComm_Faessler.pdf
file_size: 3958727
relation: main_file
success: 1
file_date_updated: 2020-12-28T08:16:10Z
has_accepted_license: '1'
intvolume: ' 11'
isi: 1
keyword:
- General Biochemistry
- Genetics and Molecular Biology
- General Physics and Astronomy
- General Chemistry
language:
- iso: eng
month: '12'
oa: 1
oa_version: Published Version
project:
- _id: 9B954C5C-BA93-11EA-9121-9846C619BF3A
grant_number: P33367
name: Structure and isoform diversity of the Arp2/3 complex
- _id: 2674F658-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: M02495
name: Protein structure and function in filopodia across scales
publication: Nature Communications
publication_identifier:
issn:
- 2041-1723
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
related_material:
link:
- description: News on IST Homepage
relation: press_release
url: https://ist.ac.at/en/news/cutting-edge-technology-reveals-structures-within-cells/
scopus_import: '1'
status: public
title: Cryo-electron tomography structure of Arp2/3 complex in cells reveals new insights
into the branch junction
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 11
year: '2020'
...
---
_id: '8973'
abstract:
- lang: eng
text: We consider the symmetric simple exclusion process in Zd with quenched bounded
dynamic random conductances and prove its hydrodynamic limit in path space. The
main tool is the connection, due to the self-duality of the process, between the
invariance principle for single particles starting from all points and the macroscopic
behavior of the density field. While the hydrodynamic limit at fixed macroscopic
times is obtained via a generalization to the time-inhomogeneous context of the
strategy introduced in [41], in order to prove tightness for the sequence of empirical
density fields we develop a new criterion based on the notion of uniform conditional
stochastic continuity, following [50]. In conclusion, we show that uniform elliptic
dynamic conductances provide an example of environments in which the so-called
arbitrary starting point invariance principle may be derived from the invariance
principle of a single particle starting from the origin. Therefore, our hydrodynamics
result applies to the examples of quenched environments considered in, e.g., [1],
[3], [6] in combination with the hypothesis of uniform ellipticity.
acknowledgement: "We warmly thank S.R.S. Varadhan for many enlightening discussions
at an early stage of this work. We are indebted to Francesca Collet for fruitful
discussions and constant support all throughout this work. We thank Simone Floreani\r\nand
Alberto Chiarini for helpful conversations on the final part of this paper as well
as both referees for their careful reading and for raising relevant issues on some
weak points contained in a previous version of this manuscript; we believe this
helped us to improve it.\r\nPart of this work was done during the authors’ stay
at the Institut Henri Poincaré (UMS 5208 CNRS-Sorbonne Université) – Centre Emile
Borel during the trimester Stochastic Dynamics Out of Equilibrium. The authors thank
this institution for hospitality and support (through LabEx CARMIN, ANR-10-LABX-59-01).
F.S. thanks laboratoire\r\nMAP5 of Université de Paris, and E.S. thanks Delft University,
for financial support and hospitality. F.S. acknowledges NWO for financial support
via the TOP1 grant 613.001.552 as well as funding from the European Union’s Horizon
2020 research and innovation programme under the Marie-Skłodowska-Curie grant agreement
No. 754411. This research has been conducted within the FP2M federation (CNRS FR
2036)."
article_number: '138'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Frank
full_name: Redig, Frank
last_name: Redig
- first_name: Ellen
full_name: Saada, Ellen
last_name: Saada
- first_name: Federico
full_name: Sau, Federico
id: E1836206-9F16-11E9-8814-AEFDE5697425
last_name: Sau
citation:
ama: 'Redig F, Saada E, Sau F. Symmetric simple exclusion process in dynamic environment:
Hydrodynamics. Electronic Journal of Probability. 2020;25. doi:10.1214/20-EJP536'
apa: 'Redig, F., Saada, E., & Sau, F. (2020). Symmetric simple exclusion process
in dynamic environment: Hydrodynamics. Electronic Journal of Probability. Institute
of Mathematical Statistics. https://doi.org/10.1214/20-EJP536'
chicago: 'Redig, Frank, Ellen Saada, and Federico Sau. “Symmetric Simple Exclusion
Process in Dynamic Environment: Hydrodynamics.” Electronic Journal of Probability. Institute
of Mathematical Statistics, 2020. https://doi.org/10.1214/20-EJP536.'
ieee: 'F. Redig, E. Saada, and F. Sau, “Symmetric simple exclusion process in dynamic
environment: Hydrodynamics,” Electronic Journal of Probability, vol. 25. Institute
of Mathematical Statistics, 2020.'
ista: 'Redig F, Saada E, Sau F. 2020. Symmetric simple exclusion process in dynamic
environment: Hydrodynamics. Electronic Journal of Probability. 25, 138.'
mla: 'Redig, Frank, et al. “Symmetric Simple Exclusion Process in Dynamic Environment:
Hydrodynamics.” Electronic Journal of Probability, vol. 25, 138, Institute
of Mathematical Statistics, 2020, doi:10.1214/20-EJP536.'
short: F. Redig, E. Saada, F. Sau, Electronic Journal of Probability 25 (2020).
date_created: 2020-12-27T23:01:17Z
date_published: 2020-10-21T00:00:00Z
date_updated: 2025-04-14T07:43:50Z
day: '21'
ddc:
- '510'
department:
- _id: JaMa
doi: 10.1214/20-EJP536
ec_funded: 1
external_id:
arxiv:
- '1811.01366'
isi:
- '000591737500001'
file:
- access_level: open_access
checksum: d75359b9814e78d57c0a481b7cde3751
content_type: application/pdf
creator: dernst
date_created: 2020-12-28T08:24:08Z
date_updated: 2020-12-28T08:24:08Z
file_id: '8976'
file_name: 2020_ElectronJProbab_Redig.pdf
file_size: 696653
relation: main_file
success: 1
file_date_updated: 2020-12-28T08:24:08Z
has_accepted_license: '1'
intvolume: ' 25'
isi: 1
language:
- iso: eng
month: '10'
oa: 1
oa_version: Published Version
project:
- _id: 260C2330-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '754411'
name: ISTplus - Postdoctoral Fellowships
publication: Electronic Journal of Probability
publication_identifier:
eissn:
- 1083-6489
publication_status: published
publisher: ' Institute of Mathematical Statistics'
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Symmetric simple exclusion process in dynamic environment: Hydrodynamics'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 25
year: '2020'
...
---
_id: '9000'
abstract:
- lang: eng
text: 'In prokaryotes, thermodynamic models of gene regulation provide a highly
quantitative mapping from promoter sequences to gene-expression levels that is
compatible with in vivo and in vitro biophysical measurements. Such concordance
has not been achieved for models of enhancer function in eukaryotes. In equilibrium
models, it is difficult to reconcile the reported short transcription factor (TF)
residence times on the DNA with the high specificity of regulation. In nonequilibrium
models, progress is difficult due to an explosion in the number of parameters.
Here, we navigate this complexity by looking for minimal nonequilibrium enhancer
models that yield desired regulatory phenotypes: low TF residence time, high specificity,
and tunable cooperativity. We find that a single extra parameter, interpretable
as the “linking rate,” by which bound TFs interact with Mediator components, enables
our models to escape equilibrium bounds and access optimal regulatory phenotypes,
while remaining consistent with the reported phenomenology and simple enough to
be inferred from upcoming experiments. We further find that high specificity in
nonequilibrium models is in a trade-off with gene-expression noise, predicting
bursty dynamics—an experimentally observed hallmark of eukaryotic transcription.
By drastically reducing the vast parameter space of nonequilibrium enhancer models
to a much smaller subspace that optimally realizes biological function, we deliver
a rich class of models that could be tractably inferred from data in the near
future.'
acknowledgement: G.T. was supported by Human Frontiers Science Program Grant RGP0034/2018.
R.G. was supported by the Austrian Academy of Sciences DOC Fellowship. R.G. thanks
S. Avvakumov for helpful discussions.
article_processing_charge: No
article_type: original
author:
- first_name: Rok
full_name: Grah, Rok
id: 483E70DE-F248-11E8-B48F-1D18A9856A87
last_name: Grah
orcid: 0000-0003-2539-3560
- first_name: Benjamin
full_name: Zoller, Benjamin
last_name: Zoller
- first_name: Gašper
full_name: Tkačik, Gašper
id: 3D494DCA-F248-11E8-B48F-1D18A9856A87
last_name: Tkačik
orcid: 0000-0002-6699-1455
citation:
ama: Grah R, Zoller B, Tkačik G. Nonequilibrium models of optimal enhancer function.
Proceedings of the National Academy of Sciences of the United States of America.
2020;117(50):31614-31622. doi:10.1073/pnas.2006731117
apa: Grah, R., Zoller, B., & Tkačik, G. (2020). Nonequilibrium models of optimal
enhancer function. Proceedings of the National Academy of Sciences of the United
States of America. National Academy of Sciences. https://doi.org/10.1073/pnas.2006731117
chicago: Grah, Rok, Benjamin Zoller, and Gašper Tkačik. “Nonequilibrium Models of
Optimal Enhancer Function.” Proceedings of the National Academy of Sciences
of the United States of America. National Academy of Sciences, 2020. https://doi.org/10.1073/pnas.2006731117.
ieee: R. Grah, B. Zoller, and G. Tkačik, “Nonequilibrium models of optimal enhancer
function,” Proceedings of the National Academy of Sciences of the United States
of America, vol. 117, no. 50. National Academy of Sciences, pp. 31614–31622,
2020.
ista: Grah R, Zoller B, Tkačik G. 2020. Nonequilibrium models of optimal enhancer
function. Proceedings of the National Academy of Sciences of the United States
of America. 117(50), 31614–31622.
mla: Grah, Rok, et al. “Nonequilibrium Models of Optimal Enhancer Function.” Proceedings
of the National Academy of Sciences of the United States of America, vol.
117, no. 50, National Academy of Sciences, 2020, pp. 31614–22, doi:10.1073/pnas.2006731117.
short: R. Grah, B. Zoller, G. Tkačik, Proceedings of the National Academy of Sciences
of the United States of America 117 (2020) 31614–31622.
corr_author: '1'
date_created: 2021-01-10T23:01:17Z
date_published: 2020-12-15T00:00:00Z
date_updated: 2025-05-14T10:57:50Z
day: '15'
ddc:
- '570'
department:
- _id: GaTk
doi: 10.1073/pnas.2006731117
external_id:
isi:
- '000600608300015'
pmid:
- '33268497'
file:
- access_level: open_access
checksum: 69039cd402a571983aa6cb4815ffa863
content_type: application/pdf
creator: dernst
date_created: 2021-01-11T08:37:31Z
date_updated: 2021-01-11T08:37:31Z
file_id: '9004'
file_name: 2020_PNAS_Grah.pdf
file_size: 1199247
relation: main_file
success: 1
file_date_updated: 2021-01-11T08:37:31Z
has_accepted_license: '1'
intvolume: ' 117'
isi: 1
issue: '50'
language:
- iso: eng
month: '12'
oa: 1
oa_version: Published Version
page: 31614-31622
pmid: 1
project:
- _id: 2665AAFE-B435-11E9-9278-68D0E5697425
grant_number: RGP0034/2018
name: Can evolution minimize spurious signaling crosstalk to reach optimal performance?
- _id: 267C84F4-B435-11E9-9278-68D0E5697425
name: Biophysically realistic genotype-phenotype maps for regulatory networks
publication: Proceedings of the National Academy of Sciences of the United States
of America
publication_identifier:
eissn:
- 1091-6490
issn:
- 0027-8424
publication_status: published
publisher: National Academy of Sciences
quality_controlled: '1'
related_material:
link:
- description: News on IST Homepage
relation: press_release
url: https://ist.ac.at/en/news/new-compact-model-for-gene-regulation-in-higher-organisms/
scopus_import: '1'
status: public
title: Nonequilibrium models of optimal enhancer function
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: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 117
year: '2020'
...
---
_id: '9007'
abstract:
- lang: eng
text: Motivated by a recent question of Peyre, we apply the Hardy–Littlewood circle
method to count “sufficiently free” rational points of bounded height on arbitrary
smooth projective hypersurfaces of low degree that are defined over the rationals.
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Timothy D
full_name: Browning, Timothy D
id: 35827D50-F248-11E8-B48F-1D18A9856A87
last_name: Browning
orcid: 0000-0002-8314-0177
- first_name: Will
full_name: Sawin, Will
last_name: Sawin
citation:
ama: Browning TD, Sawin W. Free rational points on smooth hypersurfaces. Commentarii
Mathematici Helvetici. 2020;95(4):635-659. doi:10.4171/CMH/499
apa: Browning, T. D., & Sawin, W. (2020). Free rational points on smooth hypersurfaces.
Commentarii Mathematici Helvetici. European Mathematical Society. https://doi.org/10.4171/CMH/499
chicago: Browning, Timothy D, and Will Sawin. “Free Rational Points on Smooth Hypersurfaces.”
Commentarii Mathematici Helvetici. European Mathematical Society, 2020.
https://doi.org/10.4171/CMH/499.
ieee: T. D. Browning and W. Sawin, “Free rational points on smooth hypersurfaces,”
Commentarii Mathematici Helvetici, vol. 95, no. 4. European Mathematical
Society, pp. 635–659, 2020.
ista: Browning TD, Sawin W. 2020. Free rational points on smooth hypersurfaces.
Commentarii Mathematici Helvetici. 95(4), 635–659.
mla: Browning, Timothy D., and Will Sawin. “Free Rational Points on Smooth Hypersurfaces.”
Commentarii Mathematici Helvetici, vol. 95, no. 4, European Mathematical
Society, 2020, pp. 635–59, doi:10.4171/CMH/499.
short: T.D. Browning, W. Sawin, Commentarii Mathematici Helvetici 95 (2020) 635–659.
date_created: 2021-01-17T23:01:11Z
date_published: 2020-12-07T00:00:00Z
date_updated: 2025-07-10T12:01:31Z
day: '07'
department:
- _id: TiBr
doi: 10.4171/CMH/499
external_id:
arxiv:
- '1906.08463'
isi:
- '000596833300001'
intvolume: ' 95'
isi: 1
issue: '4'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1906.08463
month: '12'
oa: 1
oa_version: Preprint
page: 635-659
publication: Commentarii Mathematici Helvetici
publication_identifier:
eissn:
- 1420-8946
issn:
- 0010-2571
publication_status: published
publisher: European Mathematical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Free rational points on smooth hypersurfaces
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 95
year: '2020'
...
---
_id: '9011'
abstract:
- lang: eng
text: "Distributed ledgers provide high availability and integrity, making them
a key enabler for practical and secure computation of distributed workloads among
mutually distrustful parties. Many practical applications also require strong
confidentiality, however. This work enhances permissioned and permissionless blockchains
with the ability to manage confidential data without forfeiting availability or
decentralization. The proposed Calypso architecture addresses two orthogonal challenges
confronting modern distributed ledgers: (a) enabling the auditable management
of secrets and (b) protecting distributed computations against arbitrage attacks
when their results depend on the ordering and secrecy of inputs.\r\n\r\nCalypso
introduces on-chain secrets, a novel abstraction that enforces atomic deposition
of an auditable trace whenever users access confidential data. Calypso provides
user-controlled consent management that ensures revocation atomicity and accountable
anonymity. To enable permissionless deployment, we introduce an incentive scheme
and provide users with the option to select their preferred trustees. We evaluated
our Calypso prototype with a confidential document-sharing application and a decentralized
lottery. Our benchmarks show that transaction-processing latency increases linearly
in terms of security (number of trustees) and is in the range of 0.2 to 8 seconds
for 16 to 128 trustees."
acknowledgement: 'We thank Nicolas Gailly, Vincent Graf, Jean-Pierre Hubaux, Wouter
Lueks, Massimo Marelli, Carmela Troncoso, Juan-Ramón Troncoso Pastoriza, Frédéric
Pont, and Sandra Siby for their valuable feedback. This project was supported in
part by the ETH domain under PHRT grant #2017−201, and by the AXA Research Fund,
Byzgen, DFINITY, and the Swiss Data Science Center (SDSC).'
article_processing_charge: No
article_type: original
author:
- first_name: Eleftherios
full_name: Kokoris Kogias, Eleftherios
id: f5983044-d7ef-11ea-ac6d-fd1430a26d30
last_name: Kokoris Kogias
- first_name: Enis Ceyhun
full_name: Alp, Enis Ceyhun
last_name: Alp
- first_name: Linus
full_name: Gasser, Linus
last_name: Gasser
- first_name: Philipp
full_name: Jovanovic, Philipp
last_name: Jovanovic
- first_name: Ewa
full_name: Syta, Ewa
last_name: Syta
- first_name: Bryan
full_name: Ford, Bryan
last_name: Ford
citation:
ama: 'Kokoris Kogias E, Alp EC, Gasser L, Jovanovic P, Syta E, Ford B. CALYPSO:
Private data management for decentralized ledgers. Proceedings of the VLDB
Endowment. 2020;14(4):586-599. doi:10.14778/3436905.3436917'
apa: 'Kokoris Kogias, E., Alp, E. C., Gasser, L., Jovanovic, P., Syta, E., &
Ford, B. (2020). CALYPSO: Private data management for decentralized ledgers. Proceedings
of the VLDB Endowment. Association for Computing Machinery. https://doi.org/10.14778/3436905.3436917'
chicago: 'Kokoris Kogias, Eleftherios, Enis Ceyhun Alp, Linus Gasser, Philipp Jovanovic,
Ewa Syta, and Bryan Ford. “CALYPSO: Private Data Management for Decentralized
Ledgers.” Proceedings of the VLDB Endowment. Association for Computing
Machinery, 2020. https://doi.org/10.14778/3436905.3436917.'
ieee: 'E. Kokoris Kogias, E. C. Alp, L. Gasser, P. Jovanovic, E. Syta, and B. Ford,
“CALYPSO: Private data management for decentralized ledgers,” Proceedings of
the VLDB Endowment, vol. 14, no. 4. Association for Computing Machinery, pp.
586–599, 2020.'
ista: 'Kokoris Kogias E, Alp EC, Gasser L, Jovanovic P, Syta E, Ford B. 2020. CALYPSO:
Private data management for decentralized ledgers. Proceedings of the VLDB Endowment.
14(4), 586–599.'
mla: 'Kokoris Kogias, Eleftherios, et al. “CALYPSO: Private Data Management for
Decentralized Ledgers.” Proceedings of the VLDB Endowment, vol. 14, no.
4, Association for Computing Machinery, 2020, pp. 586–99, doi:10.14778/3436905.3436917.'
short: E. Kokoris Kogias, E.C. Alp, L. Gasser, P. Jovanovic, E. Syta, B. Ford, Proceedings
of the VLDB Endowment 14 (2020) 586–599.
corr_author: '1'
date_created: 2021-01-17T23:01:13Z
date_published: 2020-12-01T00:00:00Z
date_updated: 2024-10-09T21:00:32Z
day: '01'
department:
- _id: ElKo
doi: 10.14778/3436905.3436917
external_id:
isi:
- '000658495400012'
intvolume: ' 14'
isi: 1
issue: '4'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://dl.acm.org/doi/10.14778/3436905.3436917
month: '12'
oa: 1
oa_version: Published Version
page: 586-599
publication: Proceedings of the VLDB Endowment
publication_identifier:
eissn:
- 2150-8097
publication_status: published
publisher: Association for Computing Machinery
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'CALYPSO: Private data management for decentralized ledgers'
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: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 14
year: '2020'
...
---
_id: '9039'
abstract:
- lang: eng
text: We give a short and self-contained proof for rates of convergence of the Allen--Cahn
equation towards mean curvature flow, assuming that a classical (smooth) solution
to the latter exists and starting from well-prepared initial data. Our approach
is based on a relative entropy technique. In particular, it does not require a
stability analysis for the linearized Allen--Cahn operator. As our analysis also
does not rely on the comparison principle, we expect it to be applicable to more
complex equations and systems.
acknowledgement: "This work was supported by the European Union's Horizon 2020 Research
and Innovation\r\nProgramme under Marie Sklodowska-Curie grant agreement 665385
and by the Deutsche\r\nForschungsgemeinschaft (DFG, German Research Foundation)
under Germany's Excellence Strategy, EXC-2047/1--390685813."
article_processing_charge: No
article_type: original
author:
- first_name: Julian L
full_name: Fischer, Julian L
id: 2C12A0B0-F248-11E8-B48F-1D18A9856A87
last_name: Fischer
orcid: 0000-0002-0479-558X
- first_name: Tim
full_name: Laux, Tim
last_name: Laux
- first_name: Theresa M.
full_name: Simon, Theresa M.
last_name: Simon
citation:
ama: 'Fischer JL, Laux T, Simon TM. Convergence rates of the Allen-Cahn equation
to mean curvature flow: A short proof based on relative entropies. SIAM Journal
on Mathematical Analysis. 2020;52(6):6222-6233. doi:10.1137/20M1322182'
apa: 'Fischer, J. L., Laux, T., & Simon, T. M. (2020). Convergence rates of
the Allen-Cahn equation to mean curvature flow: A short proof based on relative
entropies. SIAM Journal on Mathematical Analysis. Society for Industrial
and Applied Mathematics. https://doi.org/10.1137/20M1322182'
chicago: 'Fischer, Julian L, Tim Laux, and Theresa M. Simon. “Convergence Rates
of the Allen-Cahn Equation to Mean Curvature Flow: A Short Proof Based on Relative
Entropies.” SIAM Journal on Mathematical Analysis. Society for Industrial
and Applied Mathematics, 2020. https://doi.org/10.1137/20M1322182.'
ieee: 'J. L. Fischer, T. Laux, and T. M. Simon, “Convergence rates of the Allen-Cahn
equation to mean curvature flow: A short proof based on relative entropies,” SIAM
Journal on Mathematical Analysis, vol. 52, no. 6. Society for Industrial and
Applied Mathematics, pp. 6222–6233, 2020.'
ista: 'Fischer JL, Laux T, Simon TM. 2020. Convergence rates of the Allen-Cahn equation
to mean curvature flow: A short proof based on relative entropies. SIAM Journal
on Mathematical Analysis. 52(6), 6222–6233.'
mla: 'Fischer, Julian L., et al. “Convergence Rates of the Allen-Cahn Equation to
Mean Curvature Flow: A Short Proof Based on Relative Entropies.” SIAM Journal
on Mathematical Analysis, vol. 52, no. 6, Society for Industrial and Applied
Mathematics, 2020, pp. 6222–33, doi:10.1137/20M1322182.'
short: J.L. Fischer, T. Laux, T.M. Simon, SIAM Journal on Mathematical Analysis
52 (2020) 6222–6233.
corr_author: '1'
date_created: 2021-01-24T23:01:09Z
date_published: 2020-12-15T00:00:00Z
date_updated: 2025-07-10T12:01:32Z
day: '15'
ddc:
- '510'
department:
- _id: JuFi
doi: 10.1137/20M1322182
ec_funded: 1
external_id:
isi:
- '000600695200027'
file:
- access_level: open_access
checksum: 21aa1cf4c30a86a00cae15a984819b5d
content_type: application/pdf
creator: dernst
date_created: 2021-01-25T07:48:39Z
date_updated: 2021-01-25T07:48:39Z
file_id: '9041'
file_name: 2020_SIAM_Fischer.pdf
file_size: 310655
relation: main_file
success: 1
file_date_updated: 2021-01-25T07:48:39Z
has_accepted_license: '1'
intvolume: ' 52'
isi: 1
issue: '6'
language:
- iso: eng
month: '12'
oa: 1
oa_version: Published Version
page: 6222-6233
project:
- _id: 2564DBCA-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '665385'
name: International IST Doctoral Program
publication: SIAM Journal on Mathematical Analysis
publication_identifier:
eissn:
- 1095-7154
issn:
- 0036-1410
publication_status: published
publisher: Society for Industrial and Applied Mathematics
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Convergence rates of the Allen-Cahn equation to mean curvature flow: A short
proof based on relative entropies'
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: 52
year: '2020'
...
---
_id: '9040'
abstract:
- lang: eng
text: Machine learning and formal methods have complimentary benefits and drawbacks.
In this work, we address the controller-design problem with a combination of techniques
from both fields. The use of black-box neural networks in deep reinforcement learning
(deep RL) poses a challenge for such a combination. Instead of reasoning formally
about the output of deep RL, which we call the wizard, we extract from it a decision-tree
based model, which we refer to as the magic book. Using the extracted model as
an intermediary, we are able to handle problems that are infeasible for either
deep RL or formal methods by themselves. First, we suggest, for the first time,
a synthesis procedure that is based on a magic book. We synthesize a stand-alone
correct-by-design controller that enjoys the favorable performance of RL. Second,
we incorporate a magic book in a bounded model checking (BMC) procedure. BMC allows
us to find numerous traces of the plant under the control of the wizard, which
a user can use to increase the trustworthiness of the wizard and direct further
training.
acknowledgement: This research was supported in part by the Austrian Science Fund
(FWF) under grant Z211-N23 (Wittgenstein Award).
article_processing_charge: No
author:
- first_name: Par Alizadeh
full_name: Alamdari, Par Alizadeh
last_name: Alamdari
- first_name: Guy
full_name: Avni, Guy
id: 463C8BC2-F248-11E8-B48F-1D18A9856A87
last_name: Avni
orcid: 0000-0001-5588-8287
- first_name: Thomas A
full_name: Henzinger, Thomas A
id: 40876CD8-F248-11E8-B48F-1D18A9856A87
last_name: Henzinger
orcid: 0000-0002-2985-7724
- first_name: Anna
full_name: Lukina, Anna
id: CBA4D1A8-0FE8-11E9-BDE6-07BFE5697425
last_name: Lukina
citation:
ama: 'Alamdari PA, Avni G, Henzinger TA, Lukina A. Formal methods with a touch of
magic. In: Proceedings of the 20th Conference on Formal Methods in Computer-Aided
Design. TU Wien Academic Press; 2020:138-147. doi:10.34727/2020/isbn.978-3-85448-042-6_21'
apa: 'Alamdari, P. A., Avni, G., Henzinger, T. A., & Lukina, A. (2020). Formal
methods with a touch of magic. In Proceedings of the 20th Conference on Formal
Methods in Computer-Aided Design (pp. 138–147). Online Conference: TU Wien
Academic Press. https://doi.org/10.34727/2020/isbn.978-3-85448-042-6_21'
chicago: Alamdari, Par Alizadeh, Guy Avni, Thomas A Henzinger, and Anna Lukina.
“Formal Methods with a Touch of Magic.” In Proceedings of the 20th Conference
on Formal Methods in Computer-Aided Design, 138–47. TU Wien Academic Press,
2020. https://doi.org/10.34727/2020/isbn.978-3-85448-042-6_21.
ieee: P. A. Alamdari, G. Avni, T. A. Henzinger, and A. Lukina, “Formal methods with
a touch of magic,” in Proceedings of the 20th Conference on Formal Methods
in Computer-Aided Design, Online Conference, 2020, pp. 138–147.
ista: 'Alamdari PA, Avni G, Henzinger TA, Lukina A. 2020. Formal methods with a
touch of magic. Proceedings of the 20th Conference on Formal Methods in Computer-Aided
Design. FMCAD: Formal Methods in Computer-Aided Design, 138–147.'
mla: Alamdari, Par Alizadeh, et al. “Formal Methods with a Touch of Magic.” Proceedings
of the 20th Conference on Formal Methods in Computer-Aided Design, TU Wien
Academic Press, 2020, pp. 138–47, doi:10.34727/2020/isbn.978-3-85448-042-6_21.
short: P.A. Alamdari, G. Avni, T.A. Henzinger, A. Lukina, in:, Proceedings of the
20th Conference on Formal Methods in Computer-Aided Design, TU Wien Academic Press,
2020, pp. 138–147.
conference:
end_date: 2020-09-24
location: Online Conference
name: 'FMCAD: Formal Methods in Computer-Aided Design'
start_date: 2020-09-21
date_created: 2021-01-24T23:01:10Z
date_published: 2020-09-21T00:00:00Z
date_updated: 2025-07-10T12:01:32Z
day: '21'
ddc:
- '000'
department:
- _id: ToHe
doi: 10.34727/2020/isbn.978-3-85448-042-6_21
file:
- access_level: open_access
checksum: d616d549a0ade78606b16f8a9540820f
content_type: application/pdf
creator: dernst
date_created: 2021-02-09T09:39:02Z
date_updated: 2021-02-09T09:39:02Z
file_id: '9109'
file_name: 2020_FMCAD_Alamdari.pdf
file_size: 990999
relation: main_file
success: 1
file_date_updated: 2021-02-09T09:39:02Z
has_accepted_license: '1'
language:
- iso: eng
month: '09'
oa: 1
oa_version: Published Version
page: 138-147
project:
- _id: 25F42A32-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: Z211
name: Formal methods for the design and analysis of complex systems
publication: Proceedings of the 20th Conference on Formal Methods in Computer-Aided
Design
publication_identifier:
eissn:
- 2708-7824
isbn:
- '9783854480426'
publication_status: published
publisher: TU Wien Academic Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: Formal methods with a touch of magic
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2020'
...
---
_id: '9054'
abstract:
- lang: eng
text: 'The fundamental and practical importance of particle stabilization has motivated
various characterization methods for studying polymer brushes on particle surfaces.
In this work, we show how one can perform sensitive measurements of neutral polymer
coating on colloidal particles using a commercial zetameter and salt solutions.
By systematically varying the Debye length, we study the mobility of the polymer-coated
particles in an applied electric field and show that the electrophoretic mobility
of polymer-coated particles normalized by the mobility of non-coated particles
is entirely controlled by the polymer brush and independent of the native surface
charge, here controlled with pH, or the surface–ion interaction. Our result is
rationalized with a simple hydrodynamic model, allowing for the estimation of
characteristics of the polymer coating: the brush length L, and the Brinkman length
ξ, determined by its resistance to flows. We demonstrate that the Debye layer
provides a convenient and faithful probe to the characterization of polymer coatings
on particles. Because the method simply relies on a conventional zetameter, it
is widely accessible and offers a practical tool to rapidly probe neutral polymer
brushes, an asset in the development and utilization of polymer-coated colloidal
particles.'
article_processing_charge: No
article_type: original
author:
- first_name: Mena
full_name: Youssef, Mena
last_name: Youssef
- first_name: Alexandre
full_name: Morin, Alexandre
last_name: Morin
- first_name: Antoine
full_name: Aubret, Antoine
last_name: Aubret
- first_name: Stefano
full_name: Sacanna, Stefano
last_name: Sacanna
- first_name: Jérémie A
full_name: Palacci, Jérémie A
id: 8fb92548-2b22-11eb-b7c1-a3f0d08d7c7d
last_name: Palacci
orcid: 0000-0002-7253-9465
citation:
ama: Youssef M, Morin A, Aubret A, Sacanna S, Palacci JA. Rapid characterization
of neutral polymer brush with a conventional zetameter and a variable pinch of
salt. Soft Matter. 2020;16(17):4274-4282. doi:10.1039/c9sm01850f
apa: Youssef, M., Morin, A., Aubret, A., Sacanna, S., & Palacci, J. A. (2020).
Rapid characterization of neutral polymer brush with a conventional zetameter
and a variable pinch of salt. Soft Matter. Royal Society of Chemistry .
https://doi.org/10.1039/c9sm01850f
chicago: Youssef, Mena, Alexandre Morin, Antoine Aubret, Stefano Sacanna, and Jérémie
A Palacci. “Rapid Characterization of Neutral Polymer Brush with a Conventional
Zetameter and a Variable Pinch of Salt.” Soft Matter. Royal Society of
Chemistry , 2020. https://doi.org/10.1039/c9sm01850f.
ieee: M. Youssef, A. Morin, A. Aubret, S. Sacanna, and J. A. Palacci, “Rapid characterization
of neutral polymer brush with a conventional zetameter and a variable pinch of
salt,” Soft Matter, vol. 16, no. 17. Royal Society of Chemistry , pp. 4274–4282,
2020.
ista: Youssef M, Morin A, Aubret A, Sacanna S, Palacci JA. 2020. Rapid characterization
of neutral polymer brush with a conventional zetameter and a variable pinch of
salt. Soft Matter. 16(17), 4274–4282.
mla: Youssef, Mena, et al. “Rapid Characterization of Neutral Polymer Brush with
a Conventional Zetameter and a Variable Pinch of Salt.” Soft Matter, vol.
16, no. 17, Royal Society of Chemistry , 2020, pp. 4274–82, doi:10.1039/c9sm01850f.
short: M. Youssef, A. Morin, A. Aubret, S. Sacanna, J.A. Palacci, Soft Matter 16
(2020) 4274–4282.
date_created: 2021-02-01T13:45:11Z
date_published: 2020-05-07T00:00:00Z
date_updated: 2023-02-23T13:47:45Z
day: '07'
doi: 10.1039/c9sm01850f
extern: '1'
external_id:
pmid:
- '32307507'
intvolume: ' 16'
issue: '17'
keyword:
- General Chemistry
- Condensed Matter Physics
language:
- iso: eng
month: '05'
oa_version: None
page: 4274-4282
pmid: 1
publication: Soft Matter
publication_identifier:
eissn:
- 1744-6848
issn:
- 1744-683X
publication_status: published
publisher: 'Royal Society of Chemistry '
quality_controlled: '1'
scopus_import: '1'
status: public
title: Rapid characterization of neutral polymer brush with a conventional zetameter
and a variable pinch of salt
type: journal_article
user_id: D865714E-FA4E-11E9-B85B-F5C5E5697425
volume: 16
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'
...
---
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
_id: '9067'
abstract:
- lang: eng
text: Gadolinium silicide (Gd5Si4) nanoparticles are an interesting class of materials
due to their high magnetization, low Curie temperature, low toxicity in biological
environments and their multifunctional properties. We report the magnetic and
magnetothermal properties of gadolinium silicide (Gd5Si4) nanoparticles prepared
by surfactant-assisted ball milling of arc melted bulk ingots of the compound.
Using different milling times and speeds, a wide range of crystallite sizes (13–43
nm) could be produced and a reduction in Curie temperature (TC) from 340 K to
317 K was achieved, making these nanoparticles suitable for self-controlled magnetic
hyperthermia applications. The magnetothermal effect was measured in applied AC
magnetic fields of amplitude 164–239 Oe and frequencies 163–519 kHz. All particles
showed magnetic heating with a strong dependence of the specific absorption rate
(SAR) on the average crystallite size. The highest SAR of 3.7 W g−1 was measured
for 43 nm sized nanoparticles of Gd5Si4. The high SAR and low TC, (within the
therapeutic range for magnetothermal therapy) makes the Gd5Si4 behave like self-regulating
heat switches that would be suitable for self-controlled magnetic hyperthermia
applications after biocompatibility and cytotoxicity tests.
article_processing_charge: No
article_type: original
author:
- first_name: Muhammad
full_name: Nauman, Muhammad
id: 32c21954-2022-11eb-9d5f-af9f93c24e71
last_name: Nauman
orcid: 0000-0002-2111-4846
- first_name: Muhammad Hisham
full_name: Alnasir, Muhammad Hisham
last_name: Alnasir
- first_name: Muhammad Asif
full_name: Hamayun, Muhammad Asif
last_name: Hamayun
- first_name: YiXu
full_name: Wang, YiXu
last_name: Wang
- first_name: Michael
full_name: Shatruk, Michael
last_name: Shatruk
- first_name: Sadia
full_name: Manzoor, Sadia
last_name: Manzoor
citation:
ama: Nauman M, Alnasir MH, Hamayun MA, Wang Y, Shatruk M, Manzoor S. Size-dependent
magnetic and magnetothermal properties of gadolinium silicide nanoparticles. RSC
Advances. 2020;10(47):28383-28389. doi:10.1039/d0ra05394e
apa: Nauman, M., Alnasir, M. H., Hamayun, M. A., Wang, Y., Shatruk, M., & Manzoor,
S. (2020). Size-dependent magnetic and magnetothermal properties of gadolinium
silicide nanoparticles. RSC Advances. Royal Society of Chemistry. https://doi.org/10.1039/d0ra05394e
chicago: Nauman, Muhammad, Muhammad Hisham Alnasir, Muhammad Asif Hamayun, YiXu
Wang, Michael Shatruk, and Sadia Manzoor. “Size-Dependent Magnetic and Magnetothermal
Properties of Gadolinium Silicide Nanoparticles.” RSC Advances. Royal Society
of Chemistry, 2020. https://doi.org/10.1039/d0ra05394e.
ieee: M. Nauman, M. H. Alnasir, M. A. Hamayun, Y. Wang, M. Shatruk, and S. Manzoor,
“Size-dependent magnetic and magnetothermal properties of gadolinium silicide
nanoparticles,” RSC Advances, vol. 10, no. 47. Royal Society of Chemistry,
pp. 28383–28389, 2020.
ista: Nauman M, Alnasir MH, Hamayun MA, Wang Y, Shatruk M, Manzoor S. 2020. Size-dependent
magnetic and magnetothermal properties of gadolinium silicide nanoparticles. RSC
Advances. 10(47), 28383–28389.
mla: Nauman, Muhammad, et al. “Size-Dependent Magnetic and Magnetothermal Properties
of Gadolinium Silicide Nanoparticles.” RSC Advances, vol. 10, no. 47, Royal
Society of Chemistry, 2020, pp. 28383–89, doi:10.1039/d0ra05394e.
short: M. Nauman, M.H. Alnasir, M.A. Hamayun, Y. Wang, M. Shatruk, S. Manzoor, RSC
Advances 10 (2020) 28383–28389.
date_created: 2021-02-02T15:51:23Z
date_published: 2020-07-29T00:00:00Z
date_updated: 2024-10-15T13:44:01Z
day: '29'
doi: 10.1039/d0ra05394e
extern: '1'
intvolume: ' 10'
issue: '47'
keyword:
- General Chemistry
- General Chemical Engineering
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1039/d0ra05394e
month: '07'
oa: 1
oa_version: Published Version
page: 28383-28389
publication: RSC Advances
publication_identifier:
issn:
- 2046-2069
publication_status: published
publisher: Royal Society of Chemistry
quality_controlled: '1'
status: public
title: Size-dependent magnetic and magnetothermal properties of gadolinium silicide
nanoparticles
type: journal_article
user_id: 0043cee0-e5fc-11ee-9736-f83bc23afbf0
volume: 10
year: '2020'
...
---
_id: '9069'
abstract:
- lang: eng
text: In the quest for alternate and efficient electrode materials, ternary metal
electrocatalysts (TMEs), part of the perovskite family, were synthesized and tested
for methanol electro-oxidation in alkaline media. La0.5Ca0.5MO3 (M = Ni, Co, or
Mn) was synthesized via sol-gel method. X-ray diffraction analysis revealed that
the perovskite crystal structure possesses characteristic sharp and crystalline
peaks for all synthesized ternary electrocatalysts. The average particle size
calculated using Debye–Scherrer equation was in the order of La0.5Ca0.5NiO3 (LCNO)
> La0.5Ca0.5CoO3 (LCCO)> La0.5Ca0.5MnO3 (LCMO). The elemental composition of as
prepared sample, LCCO was investigated via x-ray fluorescence spectroscopy. The
qualitative and quantitative analysis revealed the presence of La, Ca and Co in
parent crystal structure with percentage compositions of 9.0, 3.12 and 87.82%
respectively. The particle size distribution was homogenous, as determined by
scanning electron and transmission electron microscopes. The electrocatalytic
activity of the synthesized ternary electrocatalysts was studied electrochemically
by cyclic voltammetry. The calculated diffusion coefficient values showed that
electrode surface of LCNO and LCCO have limited efficiency for diffusion related
phenomenon. The heterogeneous rate constants inferred better electrode kinetics
of LCCO and LCNO which exhibited good electrocatalytic behavior; sharp anodic
peaks were observed in the potential range of +0.3 to 0.6 V and +0.6 to 0.8 V,
respectively. Methanol electro-oxidation was found minimal in case of LCMO sample.
We have observed that Co substitution at B-site of perovskite electrode materials
attains better electrochemical properties, thus in relation with reported literature.
article_number: 1250g6
article_processing_charge: No
article_type: original
author:
- first_name: Tayyaba
full_name: Hussain, Tayyaba
last_name: Hussain
- first_name: Muhammad
full_name: Nauman, Muhammad
id: 32c21954-2022-11eb-9d5f-af9f93c24e71
last_name: Nauman
orcid: 0000-0002-2111-4846
- first_name: Sana
full_name: Sabahat, Sana
last_name: Sabahat
- first_name: Saira
full_name: Arif, Saira
last_name: Arif
citation:
ama: Hussain T, Nauman M, Sabahat S, Arif S. Synthesis of ternary electrocatalysts
for exploration of methanol electro-oxidation in alkaline media. Materials
Research Express. 2020;6(12). doi:10.1088/2053-1591/ab6886
apa: Hussain, T., Nauman, M., Sabahat, S., & Arif, S. (2020). Synthesis of ternary
electrocatalysts for exploration of methanol electro-oxidation in alkaline media.
Materials Research Express. IOP Publishing. https://doi.org/10.1088/2053-1591/ab6886
chicago: Hussain, Tayyaba, Muhammad Nauman, Sana Sabahat, and Saira Arif. “Synthesis
of Ternary Electrocatalysts for Exploration of Methanol Electro-Oxidation in Alkaline
Media.” Materials Research Express. IOP Publishing, 2020. https://doi.org/10.1088/2053-1591/ab6886.
ieee: T. Hussain, M. Nauman, S. Sabahat, and S. Arif, “Synthesis of ternary electrocatalysts
for exploration of methanol electro-oxidation in alkaline media,” Materials
Research Express, vol. 6, no. 12. IOP Publishing, 2020.
ista: Hussain T, Nauman M, Sabahat S, Arif S. 2020. Synthesis of ternary electrocatalysts
for exploration of methanol electro-oxidation in alkaline media. Materials Research
Express. 6(12), 1250g6.
mla: Hussain, Tayyaba, et al. “Synthesis of Ternary Electrocatalysts for Exploration
of Methanol Electro-Oxidation in Alkaline Media.” Materials Research Express,
vol. 6, no. 12, 1250g6, IOP Publishing, 2020, doi:10.1088/2053-1591/ab6886.
short: T. Hussain, M. Nauman, S. Sabahat, S. Arif, Materials Research Express 6
(2020).
date_created: 2021-02-02T15:53:57Z
date_published: 2020-01-15T00:00:00Z
date_updated: 2021-02-04T07:21:35Z
day: '15'
doi: 10.1088/2053-1591/ab6886
extern: '1'
intvolume: ' 6'
issue: '12'
keyword:
- Electronic
- Optical and Magnetic Materials
- Surfaces
- Coatings and Films
- Polymers and Plastics
- Metals and Alloys
- Biomaterials
language:
- iso: eng
month: '01'
oa_version: None
publication: Materials Research Express
publication_identifier:
issn:
- 2053-1591
publication_status: published
publisher: IOP Publishing
quality_controlled: '1'
status: public
title: Synthesis of ternary electrocatalysts for exploration of methanol electro-oxidation
in alkaline media
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 6
year: '2020'
...
---
_id: '9096'
article_processing_charge: No
author:
- first_name: Paul
full_name: Schmid-Hempel, Paul
last_name: Schmid-Hempel
- first_name: Sylvia M
full_name: Cremer, Sylvia M
id: 2F64EC8C-F248-11E8-B48F-1D18A9856A87
last_name: Cremer
orcid: 0000-0002-2193-3868
citation:
ama: 'Schmid-Hempel P, Cremer S. Parasites and Pathogens. In: Starr C, ed. Encyclopedia
of Social Insects. Cham: Springer Nature; 2020. doi:10.1007/978-3-319-90306-4_94-1'
apa: 'Schmid-Hempel, P., & Cremer, S. (2020). Parasites and Pathogens. In C.
Starr (Ed.), Encyclopedia of Social Insects. Cham: Springer Nature. https://doi.org/10.1007/978-3-319-90306-4_94-1'
chicago: 'Schmid-Hempel, Paul, and Sylvia Cremer. “Parasites and Pathogens.” In
Encyclopedia of Social Insects, edited by C Starr. Cham: Springer Nature,
2020. https://doi.org/10.1007/978-3-319-90306-4_94-1.'
ieee: 'P. Schmid-Hempel and S. Cremer, “Parasites and Pathogens,” in Encyclopedia
of Social Insects, C. Starr, Ed. Cham: Springer Nature, 2020.'
ista: 'Schmid-Hempel P, Cremer S. 2020.Parasites and Pathogens. In: Encyclopedia
of Social Insects. .'
mla: Schmid-Hempel, Paul, and Sylvia Cremer. “Parasites and Pathogens.” Encyclopedia
of Social Insects, edited by C Starr, Springer Nature, 2020, doi:10.1007/978-3-319-90306-4_94-1.
short: P. Schmid-Hempel, S. Cremer, in:, C. Starr (Ed.), Encyclopedia of Social
Insects, Springer Nature, Cham, 2020.
date_created: 2021-02-05T12:15:18Z
date_published: 2020-02-22T00:00:00Z
date_updated: 2021-02-05T12:19:21Z
day: '22'
department:
- _id: SyCr
doi: 10.1007/978-3-319-90306-4_94-1
editor:
- first_name: C
full_name: Starr, C
last_name: Starr
language:
- iso: eng
month: '02'
oa_version: None
place: Cham
publication: Encyclopedia of Social Insects
publication_identifier:
isbn:
- '9783319903064'
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
status: public
title: Parasites and Pathogens
type: book_chapter
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2020'
...
---
_id: '9104'
abstract:
- lang: eng
text: We consider the free additive convolution of two probability measures μ and
ν on the real line and show that μ ⊞ v is supported on a single interval if μ
and ν each has single interval support. Moreover, the density of μ ⊞ ν is proven
to vanish as a square root near the edges of its support if both μ and ν have
power law behavior with exponents between −1 and 1 near their edges. In particular,
these results show the ubiquity of the conditions in our recent work on optimal
local law at the spectral edges for addition of random matrices [5].
acknowledgement: "Supported in part by Hong Kong RGC Grant ECS 26301517.\r\nSupported
in part by ERC Advanced Grant RANMAT No. 338804.\r\nSupported in part by the Knut
and Alice Wallenberg Foundation and the Swedish Research Council Grant VR-2017-05195."
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Zhigang
full_name: Bao, Zhigang
id: 442E6A6C-F248-11E8-B48F-1D18A9856A87
last_name: Bao
orcid: 0000-0003-3036-1475
- first_name: László
full_name: Erdös, László
id: 4DBD5372-F248-11E8-B48F-1D18A9856A87
last_name: Erdös
orcid: 0000-0001-5366-9603
- first_name: Kevin
full_name: Schnelli, Kevin
id: 434AD0AE-F248-11E8-B48F-1D18A9856A87
last_name: Schnelli
orcid: 0000-0003-0954-3231
citation:
ama: Bao Z, Erdös L, Schnelli K. On the support of the free additive convolution.
Journal d’Analyse Mathematique. 2020;142:323-348. doi:10.1007/s11854-020-0135-2
apa: Bao, Z., Erdös, L., & Schnelli, K. (2020). On the support of the free additive
convolution. Journal d’Analyse Mathematique. Springer Nature. https://doi.org/10.1007/s11854-020-0135-2
chicago: Bao, Zhigang, László Erdös, and Kevin Schnelli. “On the Support of the
Free Additive Convolution.” Journal d’Analyse Mathematique. Springer Nature,
2020. https://doi.org/10.1007/s11854-020-0135-2.
ieee: Z. Bao, L. Erdös, and K. Schnelli, “On the support of the free additive convolution,”
Journal d’Analyse Mathematique, vol. 142. Springer Nature, pp. 323–348,
2020.
ista: Bao Z, Erdös L, Schnelli K. 2020. On the support of the free additive convolution.
Journal d’Analyse Mathematique. 142, 323–348.
mla: Bao, Zhigang, et al. “On the Support of the Free Additive Convolution.” Journal
d’Analyse Mathematique, vol. 142, Springer Nature, 2020, pp. 323–48, doi:10.1007/s11854-020-0135-2.
short: Z. Bao, L. Erdös, K. Schnelli, Journal d’Analyse Mathematique 142 (2020)
323–348.
date_created: 2021-02-07T23:01:15Z
date_published: 2020-11-01T00:00:00Z
date_updated: 2025-07-10T12:01:37Z
day: '01'
department:
- _id: LaEr
doi: 10.1007/s11854-020-0135-2
ec_funded: 1
external_id:
arxiv:
- '1804.11199'
isi:
- '000611879400008'
intvolume: ' 142'
isi: 1
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1804.11199
month: '11'
oa: 1
oa_version: Preprint
page: 323-348
project:
- _id: 258DCDE6-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '338804'
name: Random matrices, universality and disordered quantum systems
publication: Journal d'Analyse Mathematique
publication_identifier:
eissn:
- 1565-8538
issn:
- 0021-7670
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: On the support of the free additive convolution
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 142
year: '2020'
...
---
_id: '9124'
abstract:
- lang: eng
text: The couplings among clouds, convection, and circulation in trade-wind regimes
remain a fundamental puzzle that limits our ability to constrain future climate
change. Radiative heating plays an important role in these couplings. Here we
calculate the clear-sky radiative profiles from 2001 in-situ soundings (978 dropsondes
and 1023 radiosondes) collected during the EUREC4A field campaign, which took
place south and east of Barbados in January–February 2020. We describe the method
used to calculate these radiative profiles and present preliminary results sampling
variability at multiple scales, from the variability across all soundings to groupings
by diurnal cycle and mesoscale organization state, as well as individual soundings
associated with elevated moisture layers. This clear-sky radiative profiles data
set can provide important missing detail to what can be learned from calculations
based on passive remote sensing and help in investigating the role of radiation
in dynamic and thermodynamic variability in trade-wind regimes. All data are archived
and freely available for public access on AERIS (Albright et al. (2020), https://doi.org/10.25326/78).
article_processing_charge: No
author:
- first_name: Anna Lea
full_name: Albright, Anna Lea
last_name: Albright
- first_name: Benjamin
full_name: Fildier, Benjamin
last_name: Fildier
- first_name: Ludovic
full_name: Touzé-Peiffer, Ludovic
last_name: Touzé-Peiffer
- first_name: Robert
full_name: Pincus, Robert
last_name: Pincus
- first_name: Jessica
full_name: Vial, Jessica
last_name: Vial
- first_name: Caroline J
full_name: Muller, Caroline J
id: f978ccb0-3f7f-11eb-b193-b0e2bd13182b
last_name: Muller
orcid: 0000-0001-5836-5350
citation:
ama: Albright AL, Fildier B, Touzé-Peiffer L, Pincus R, Vial J, Muller CJ. Atmospheric
radiative profiles during EUREC4A. Earth System Science Data. doi:10.5194/essd-2020-269
apa: Albright, A. L., Fildier, B., Touzé-Peiffer, L., Pincus, R., Vial, J., &
Muller, C. J. (n.d.). Atmospheric radiative profiles during EUREC4A. Earth
System Science Data. Copernicus Publications. https://doi.org/10.5194/essd-2020-269
chicago: Albright, Anna Lea, Benjamin Fildier, Ludovic Touzé-Peiffer, Robert Pincus,
Jessica Vial, and Caroline J Muller. “Atmospheric Radiative Profiles during EUREC4A.”
Earth System Science Data. Copernicus Publications, n.d. https://doi.org/10.5194/essd-2020-269.
ieee: A. L. Albright, B. Fildier, L. Touzé-Peiffer, R. Pincus, J. Vial, and C. J.
Muller, “Atmospheric radiative profiles during EUREC4A,” Earth System Science
Data. Copernicus Publications.
ista: Albright AL, Fildier B, Touzé-Peiffer L, Pincus R, Vial J, Muller CJ. Atmospheric
radiative profiles during EUREC4A. Earth System Science Data, 10.5194/essd-2020-269.
mla: Albright, Anna Lea, et al. “Atmospheric Radiative Profiles during EUREC4A.”
Earth System Science Data, Copernicus Publications, doi:10.5194/essd-2020-269.
short: A.L. Albright, B. Fildier, L. Touzé-Peiffer, R. Pincus, J. Vial, C.J. Muller,
Earth System Science Data (n.d.).
date_created: 2021-02-15T14:05:54Z
date_published: 2020-09-24T00:00:00Z
date_updated: 2022-01-24T12:27:08Z
day: '24'
doi: 10.5194/essd-2020-269
extern: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.5194/essd-2020-269
month: '09'
oa: 1
oa_version: Preprint
publication: Earth System Science Data
publication_status: submitted
publisher: Copernicus Publications
status: public
title: Atmospheric radiative profiles during EUREC4A
type: preprint
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
year: '2020'
...
---
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
_id: '9125'
abstract:
- lang: eng
text: This study investigates the feedbacks between an interactive sea surface temperature
(SST) and the self‐aggregation of deep convective clouds, using a cloud‐resolving
model in nonrotating radiative‐convective equilibrium. The ocean is modeled as
one layer slab with a temporally fixed mean but spatially varying temperature.
We find that the interactive SST decelerates the aggregation and that the deceleration
is larger with a shallower slab, consistent with earlier studies. The surface
temperature anomaly in dry regions is positive at first, thus opposing the diverging
shallow circulation known to favor self‐aggregation, consistent with the slower
aggregation. But surprisingly, the driest columns then have a negative SST anomaly,
thus strengthening the diverging shallow circulation and favoring aggregation.
This diverging circulation out of dry regions is found to be well correlated with
the aggregation speed. It can be linked to a positive surface pressure anomaly
(PSFC), itself the consequence of SST anomalies and boundary layer radiative cooling.
The latter cools and dries the boundary layer, thus increasing PSFC anomalies
through virtual effects and hydrostasy. Sensitivity experiments confirm the key
role played by boundary layer radiative cooling in determining PSFC anomalies
in dry regions, and thus the shallow diverging circulation and the aggregation
speed.
article_number: e2020MS002164
article_processing_charge: No
article_type: original
author:
- first_name: S.
full_name: Shamekh, S.
last_name: Shamekh
- first_name: Caroline J
full_name: Muller, Caroline J
id: f978ccb0-3f7f-11eb-b193-b0e2bd13182b
last_name: Muller
orcid: 0000-0001-5836-5350
- first_name: J.‐P.
full_name: Duvel, J.‐P.
last_name: Duvel
- first_name: F.
full_name: D'Andrea, F.
last_name: D'Andrea
citation:
ama: Shamekh S, Muller CJ, Duvel J ‐P., D’Andrea F. Self‐aggregation of convective
clouds with interactive sea surface temperature. Journal of Advances in Modeling
Earth Systems. 2020;12(11). doi:10.1029/2020ms002164
apa: Shamekh, S., Muller, C. J., Duvel, J. ‐P., & D’Andrea, F. (2020). Self‐aggregation
of convective clouds with interactive sea surface temperature. Journal of Advances
in Modeling Earth Systems. American Geophysical Union. https://doi.org/10.1029/2020ms002164
chicago: Shamekh, S., Caroline J Muller, J.‐P. Duvel, and F. D’Andrea. “Self‐aggregation
of Convective Clouds with Interactive Sea Surface Temperature.” Journal of
Advances in Modeling Earth Systems. American Geophysical Union, 2020. https://doi.org/10.1029/2020ms002164.
ieee: S. Shamekh, C. J. Muller, J. ‐P. Duvel, and F. D’Andrea, “Self‐aggregation
of convective clouds with interactive sea surface temperature,” Journal of
Advances in Modeling Earth Systems, vol. 12, no. 11. American Geophysical
Union, 2020.
ista: Shamekh S, Muller CJ, Duvel J ‐P., D’Andrea F. 2020. Self‐aggregation of convective
clouds with interactive sea surface temperature. Journal of Advances in Modeling
Earth Systems. 12(11), e2020MS002164.
mla: Shamekh, S., et al. “Self‐aggregation of Convective Clouds with Interactive
Sea Surface Temperature.” Journal of Advances in Modeling Earth Systems,
vol. 12, no. 11, e2020MS002164, American Geophysical Union, 2020, doi:10.1029/2020ms002164.
short: S. Shamekh, C.J. Muller, J. ‐P. Duvel, F. D’Andrea, Journal of Advances in
Modeling Earth Systems 12 (2020).
date_created: 2021-02-15T14:06:23Z
date_published: 2020-11-01T00:00:00Z
date_updated: 2024-10-15T13:46:02Z
day: '01'
doi: 10.1029/2020ms002164
extern: '1'
intvolume: ' 12'
issue: '11'
keyword:
- Global and Planetary Change
- General Earth and Planetary Sciences
- Environmental Chemistry
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1029/2020MS002164
month: '11'
oa: 1
oa_version: Published Version
publication: Journal of Advances in Modeling Earth Systems
publication_identifier:
issn:
- 1942-2466
- 1942-2466
publication_status: published
publisher: American Geophysical Union
quality_controlled: '1'
status: public
title: Self‐aggregation of convective clouds with interactive sea surface temperature
type: journal_article
user_id: 0043cee0-e5fc-11ee-9736-f83bc23afbf0
volume: 12
year: '2020'
...
---
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
_id: '9126'
abstract:
- lang: eng
text: The goal of this study is to understand the mechanisms controlling the isotopic
composition of the water vapor near the surface of tropical oceans, at the scale
of about a hundred kilometers and a month. In the tropics, it has long been observed
that the isotopic compositions of rain and vapor near the surface are more depleted
when the precipitation rate is high. This is called the “amount effect.” Previous
studies, based on observations or models with parameterized convection, have highlighted
the roles of deep convective and mesoscale downdrafts and rain evaporation. But
the relative importance of these processes has never been quantified. We hypothesize
that it can be quantified using an analytical model constrained by large‐eddy
simulations. Results from large‐eddy simulations confirm that the classical amount
effect can be simulated only if precipitation rate changes result from changes
in the large‐scale circulation. We find that the main process depleting the water
vapor compared to the equilibrium with the ocean is the fact that updrafts stem
from areas where the water vapor is more enriched. The main process responsible
for the amount effect is the fact that when the large‐scale ascent increases,
isotopic vertical gradients are steeper, so that updrafts and downdrafts deplete
the subcloud layer more efficiently.
article_number: e2020MS002106
article_processing_charge: No
article_type: original
author:
- first_name: Camille
full_name: Risi, Camille
last_name: Risi
- first_name: Caroline J
full_name: Muller, Caroline J
id: f978ccb0-3f7f-11eb-b193-b0e2bd13182b
last_name: Muller
orcid: 0000-0001-5836-5350
- first_name: Peter
full_name: Blossey, Peter
last_name: Blossey
citation:
ama: Risi C, Muller CJ, Blossey P. What controls the water vapor isotopic composition
near the surface of tropical oceans? Results from an analytical model constrained
by large‐eddy simulations. Journal of Advances in Modeling Earth Systems.
2020;12(8). doi:10.1029/2020ms002106
apa: Risi, C., Muller, C. J., & Blossey, P. (2020). What controls the water
vapor isotopic composition near the surface of tropical oceans? Results from an
analytical model constrained by large‐eddy simulations. Journal of Advances
in Modeling Earth Systems. American Geophysical Union. https://doi.org/10.1029/2020ms002106
chicago: Risi, Camille, Caroline J Muller, and Peter Blossey. “What Controls the
Water Vapor Isotopic Composition near the Surface of Tropical Oceans? Results
from an Analytical Model Constrained by Large‐eddy Simulations.” Journal of
Advances in Modeling Earth Systems. American Geophysical Union, 2020. https://doi.org/10.1029/2020ms002106.
ieee: C. Risi, C. J. Muller, and P. Blossey, “What controls the water vapor isotopic
composition near the surface of tropical oceans? Results from an analytical model
constrained by large‐eddy simulations,” Journal of Advances in Modeling Earth
Systems, vol. 12, no. 8. American Geophysical Union, 2020.
ista: Risi C, Muller CJ, Blossey P. 2020. What controls the water vapor isotopic
composition near the surface of tropical oceans? Results from an analytical model
constrained by large‐eddy simulations. Journal of Advances in Modeling Earth Systems.
12(8), e2020MS002106.
mla: Risi, Camille, et al. “What Controls the Water Vapor Isotopic Composition near
the Surface of Tropical Oceans? Results from an Analytical Model Constrained by
Large‐eddy Simulations.” Journal of Advances in Modeling Earth Systems,
vol. 12, no. 8, e2020MS002106, American Geophysical Union, 2020, doi:10.1029/2020ms002106.
short: C. Risi, C.J. Muller, P. Blossey, Journal of Advances in Modeling Earth Systems
12 (2020).
date_created: 2021-02-15T14:06:38Z
date_published: 2020-08-01T00:00:00Z
date_updated: 2024-10-15T13:47:23Z
day: '01'
doi: 10.1029/2020ms002106
extern: '1'
intvolume: ' 12'
issue: '8'
keyword:
- Global and Planetary Change
- General Earth and Planetary Sciences
- Environmental Chemistry
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1029/2020MS002106
month: '08'
oa: 1
oa_version: Published Version
publication: Journal of Advances in Modeling Earth Systems
publication_identifier:
issn:
- 1942-2466
- 1942-2466
publication_status: published
publisher: American Geophysical Union
quality_controlled: '1'
status: public
title: What controls the water vapor isotopic composition near the surface of tropical
oceans? Results from an analytical model constrained by large‐eddy simulations
type: journal_article
user_id: 0043cee0-e5fc-11ee-9736-f83bc23afbf0
volume: 12
year: '2020'
...
---
_id: '9127'
abstract:
- lang: eng
text: Nearly all regions in the world are projected to become dryer in a warming
climate. Here, we investigate the Mediterranean region, often referred to as a
climate change “hot spot”. From regional climate simulations, it is shown that
although enhanced warming and drying over land is projected, the spatial pattern
displays high variability. Indeed, drying is largely caused by enhanced warming
over land. However, in Northern Europe, soil moisture alleviates warming induced
drying by up to 50% due to humidity uptake from land. In already arid regions,
the Mediterranean Sea is generally the only humidity source, and drying is only
due to land warming. However, over Sahara and the Iberian Peninsula, enhanced
warming over land is insufficient to explain the extreme drying. These regions
are also isolated from humidity advection by heat lows, which are cyclonic circulation
anomalies associated with surface heating over land. The cyclonic circulation
scales with the temperature gradient between land and ocean which increases with
climate change, reinforcing the cyclonic circulation over Sahara and the Iberian
Peninsula, both diverting the zonal advection of humidity to the south of the
Iberian Peninsula. The dynamics are therefore key in the warming and drying of
the Mediterranean region, with extreme aridification over the Sahara and Iberian
Peninsula. In these regions, the risk for human health due to the thermal load
which accounts for air temperature and humidity is therefore projected to increase
significantly with climate change at a level of extreme danger.
article_number: '78'
article_processing_charge: No
article_type: original
author:
- first_name: Philippe
full_name: Drobinski, Philippe
last_name: Drobinski
- first_name: Nicolas
full_name: Da Silva, Nicolas
last_name: Da Silva
- first_name: Sophie
full_name: Bastin, Sophie
last_name: Bastin
- first_name: Sylvain
full_name: Mailler, Sylvain
last_name: Mailler
- first_name: Caroline J
full_name: Muller, Caroline J
id: f978ccb0-3f7f-11eb-b193-b0e2bd13182b
last_name: Muller
orcid: 0000-0001-5836-5350
- first_name: Bodo
full_name: Ahrens, Bodo
last_name: Ahrens
- first_name: Ole B.
full_name: Christensen, Ole B.
last_name: Christensen
- first_name: Piero
full_name: Lionello, Piero
last_name: Lionello
citation:
ama: Drobinski P, Da Silva N, Bastin S, et al. How warmer and drier will the Mediterranean
region be at the end of the twenty-first century? Regional Environmental Change.
2020;20(9). doi:10.1007/s10113-020-01659-w
apa: Drobinski, P., Da Silva, N., Bastin, S., Mailler, S., Muller, C. J., Ahrens,
B., … Lionello, P. (2020). How warmer and drier will the Mediterranean region
be at the end of the twenty-first century? Regional Environmental Change.
Springer Nature. https://doi.org/10.1007/s10113-020-01659-w
chicago: Drobinski, Philippe, Nicolas Da Silva, Sophie Bastin, Sylvain Mailler,
Caroline J Muller, Bodo Ahrens, Ole B. Christensen, and Piero Lionello. “How Warmer
and Drier Will the Mediterranean Region Be at the End of the Twenty-First Century?”
Regional Environmental Change. Springer Nature, 2020. https://doi.org/10.1007/s10113-020-01659-w.
ieee: P. Drobinski et al., “How warmer and drier will the Mediterranean region
be at the end of the twenty-first century?,” Regional Environmental Change,
vol. 20, no. 9. Springer Nature, 2020.
ista: Drobinski P, Da Silva N, Bastin S, Mailler S, Muller CJ, Ahrens B, Christensen
OB, Lionello P. 2020. How warmer and drier will the Mediterranean region be at
the end of the twenty-first century? Regional Environmental Change. 20(9), 78.
mla: Drobinski, Philippe, et al. “How Warmer and Drier Will the Mediterranean Region
Be at the End of the Twenty-First Century?” Regional Environmental Change,
vol. 20, no. 9, 78, Springer Nature, 2020, doi:10.1007/s10113-020-01659-w.
short: P. Drobinski, N. Da Silva, S. Bastin, S. Mailler, C.J. Muller, B. Ahrens,
O.B. Christensen, P. Lionello, Regional Environmental Change 20 (2020).
date_created: 2021-02-15T14:06:58Z
date_published: 2020-09-11T00:00:00Z
date_updated: 2022-01-24T12:28:49Z
day: '11'
doi: 10.1007/s10113-020-01659-w
extern: '1'
intvolume: ' 20'
issue: '9'
keyword:
- Global and Planetary Change
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://hal-insu.archives-ouvertes.fr/insu-02881534
month: '09'
oa: 1
oa_version: Submitted Version
publication: Regional Environmental Change
publication_identifier:
issn:
- 1436-3798
- 1436-378X
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
status: public
title: How warmer and drier will the Mediterranean region be at the end of the twenty-first
century?
type: journal_article
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
volume: 20
year: '2020'
...
---
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
_id: '9128'
abstract:
- lang: eng
text: This paper reviews recent important advances in our understanding of the response
of precipitation extremes to warming from theory and from idealized cloud-resolving
simulations. A theoretical scaling for precipitation extremes has been proposed
and refined in the past decades, allowing to address separately the contributions
from the thermodynamics, the dynamics and the microphysics. Theoretical constraints,
as well as remaining uncertainties, associated with each of these three contributions
to precipitation extremes, are discussed. Notably, although to leading order precipitation
extremes seem to follow the thermodynamic theoretical expectation in idealized
simulations, considerable uncertainty remains regarding the response of the dynamics
and of the microphysics to warming, and considerable departure from this theoretical
expectation is found in observations and in more realistic simulations. We also
emphasize key outstanding questions, in particular the response of mesoscale convective
organization to warming. Observations suggest that extreme rainfall often comes
from an organized system in very moist environments. Improved understanding of
the physical processes behind convective organization is needed in order to achieve
accurate extreme rainfall prediction in our current, and in a warming climate.
article_number: '035001'
article_processing_charge: No
article_type: letter_note
author:
- first_name: Caroline J
full_name: Muller, Caroline J
id: f978ccb0-3f7f-11eb-b193-b0e2bd13182b
last_name: Muller
orcid: 0000-0001-5836-5350
- first_name: Yukari
full_name: Takayabu, Yukari
last_name: Takayabu
citation:
ama: 'Muller CJ, Takayabu Y. Response of precipitation extremes to warming: What
have we learned from theory and idealized cloud-resolving simulations, and what
remains to be learned? Environmental Research Letters. 2020;15(3). doi:10.1088/1748-9326/ab7130'
apa: 'Muller, C. J., & Takayabu, Y. (2020). Response of precipitation extremes
to warming: What have we learned from theory and idealized cloud-resolving simulations,
and what remains to be learned? Environmental Research Letters. IOP Publishing.
https://doi.org/10.1088/1748-9326/ab7130'
chicago: 'Muller, Caroline J, and Yukari Takayabu. “Response of Precipitation Extremes
to Warming: What Have We Learned from Theory and Idealized Cloud-Resolving Simulations,
and What Remains to Be Learned?” Environmental Research Letters. IOP Publishing,
2020. https://doi.org/10.1088/1748-9326/ab7130.'
ieee: 'C. J. Muller and Y. Takayabu, “Response of precipitation extremes to warming:
What have we learned from theory and idealized cloud-resolving simulations, and
what remains to be learned?,” Environmental Research Letters, vol. 15,
no. 3. IOP Publishing, 2020.'
ista: 'Muller CJ, Takayabu Y. 2020. Response of precipitation extremes to warming:
What have we learned from theory and idealized cloud-resolving simulations, and
what remains to be learned? Environmental Research Letters. 15(3), 035001.'
mla: 'Muller, Caroline J., and Yukari Takayabu. “Response of Precipitation Extremes
to Warming: What Have We Learned from Theory and Idealized Cloud-Resolving Simulations,
and What Remains to Be Learned?” Environmental Research Letters, vol. 15,
no. 3, 035001, IOP Publishing, 2020, doi:10.1088/1748-9326/ab7130.'
short: C.J. Muller, Y. Takayabu, Environmental Research Letters 15 (2020).
date_created: 2021-02-15T14:07:14Z
date_published: 2020-02-18T00:00:00Z
date_updated: 2024-10-15T13:49:06Z
day: '18'
doi: 10.1088/1748-9326/ab7130
extern: '1'
intvolume: ' 15'
issue: '3'
keyword:
- Renewable Energy
- Sustainability and the Environment
- Public Health
- Environmental and Occupational Health
- General Environmental Science
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1088/1748-9326/ab7130
month: '02'
oa: 1
oa_version: Published Version
publication: Environmental Research Letters
publication_identifier:
issn:
- 1748-9326
publication_status: published
publisher: IOP Publishing
quality_controlled: '1'
status: public
title: 'Response of precipitation extremes to warming: What have we learned from theory
and idealized cloud-resolving simulations, and what remains to be learned?'
type: journal_article
user_id: 0043cee0-e5fc-11ee-9736-f83bc23afbf0
volume: 15
year: '2020'
...
---
_id: '9129'
abstract:
- lang: eng
text: We investigate the role of a warm sea surface temperature (SST) anomaly (hot
spot of typically 3 to 5 K) on the aggregation of convection using cloud-resolving
simulations in a nonrotating framework. It is well known that SST gradients can
spatially organize convection. Even with uniform SST, the spontaneous self-aggregation
of convection is possible above a critical SST (here 295 K), arising mainly from
radiative feedbacks. We investigate how a circular hot spot helps organize convection,
and how self-aggregation feedbacks modulate this organization. The hot spot significantly
accelerates aggregation, particularly for warmer/larger hot spots, and extends
the range of SSTs for which aggregation occurs; however, at cold SST (290 K) the
aggregated cluster disaggregates if we remove the hot spot. A large convective
instability over the hot spot leads to stronger convection and generates a large-scale
circulation which forces the subsidence drying outside the hot spot. Indeed, convection
over the hot spot brings the atmosphere toward a warmer temperature. The warmer
temperatures are imprinted over the whole domain by gravity waves and subsidence
warming. The initial transient warming and concomitant subsidence drying suppress
convection outside the hot spot, thus driving the aggregation. The hot-spot-induced
large-scale circulation can enforce the aggregation even without radiative feedbacks
for hot spots sufficiently large/warm. The strength of the large-scale circulation,
which defines the speed of aggregation, is a function of the hot spot fractional
area. At equilibrium, once the aggregation is well established, the moist convective
region with upward midtropospheric motion, centered over the hot spot, has an
area surprisingly independent of the hot spot size.
article_processing_charge: No
article_type: original
author:
- first_name: Sara
full_name: Shamekh, Sara
last_name: Shamekh
- first_name: Caroline J
full_name: Muller, Caroline J
id: f978ccb0-3f7f-11eb-b193-b0e2bd13182b
last_name: Muller
orcid: 0000-0001-5836-5350
- first_name: Jean-Philippe
full_name: Duvel, Jean-Philippe
last_name: Duvel
- first_name: Fabio
full_name: D’Andrea, Fabio
last_name: D’Andrea
citation:
ama: Shamekh S, Muller CJ, Duvel J-P, D’Andrea F. How do ocean warm anomalies favor
the aggregation of deep convective clouds? Journal of the Atmospheric Sciences.
2020;77(11):3733-3745. doi:10.1175/jas-d-18-0369.1
apa: Shamekh, S., Muller, C. J., Duvel, J.-P., & D’Andrea, F. (2020). How do
ocean warm anomalies favor the aggregation of deep convective clouds? Journal
of the Atmospheric Sciences. American Meteorological Society. https://doi.org/10.1175/jas-d-18-0369.1
chicago: Shamekh, Sara, Caroline J Muller, Jean-Philippe Duvel, and Fabio D’Andrea.
“How Do Ocean Warm Anomalies Favor the Aggregation of Deep Convective Clouds?”
Journal of the Atmospheric Sciences. American Meteorological Society, 2020.
https://doi.org/10.1175/jas-d-18-0369.1.
ieee: S. Shamekh, C. J. Muller, J.-P. Duvel, and F. D’Andrea, “How do ocean warm
anomalies favor the aggregation of deep convective clouds?,” Journal of the
Atmospheric Sciences, vol. 77, no. 11. American Meteorological Society, pp.
3733–3745, 2020.
ista: Shamekh S, Muller CJ, Duvel J-P, D’Andrea F. 2020. How do ocean warm anomalies
favor the aggregation of deep convective clouds? Journal of the Atmospheric Sciences.
77(11), 3733–3745.
mla: Shamekh, Sara, et al. “How Do Ocean Warm Anomalies Favor the Aggregation of
Deep Convective Clouds?” Journal of the Atmospheric Sciences, vol. 77,
no. 11, American Meteorological Society, 2020, pp. 3733–45, doi:10.1175/jas-d-18-0369.1.
short: S. Shamekh, C.J. Muller, J.-P. Duvel, F. D’Andrea, Journal of the Atmospheric
Sciences 77 (2020) 3733–3745.
date_created: 2021-02-15T14:07:30Z
date_published: 2020-11-01T00:00:00Z
date_updated: 2022-01-24T12:30:26Z
day: '01'
doi: 10.1175/jas-d-18-0369.1
extern: '1'
intvolume: ' 77'
issue: '11'
keyword:
- Atmospheric Science
language:
- iso: eng
month: '11'
oa_version: None
page: 3733-3745
publication: Journal of the Atmospheric Sciences
publication_identifier:
issn:
- 0022-4928
- 1520-0469
publication_status: published
publisher: American Meteorological Society
quality_controlled: '1'
status: public
title: How do ocean warm anomalies favor the aggregation of deep convective clouds?
type: journal_article
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
volume: 77
year: '2020'
...