---
_id: '9646'
abstract:
- lang: eng
text: We consider the fundamental problem of deriving quantitative bounds on the
probability that a given assertion is violated in a probabilistic program. We
provide automated algorithms that obtain both lower and upper bounds on the assertion
violation probability. The main novelty of our approach is that we prove new and
dedicated fixed-point theorems which serve as the theoretical basis of our algorithms
and enable us to reason about assertion violation bounds in terms of pre and post
fixed-point functions. To synthesize such fixed-points, we devise algorithms that
utilize a wide range of mathematical tools, including repulsing ranking supermartingales,
Hoeffding's lemma, Minkowski decompositions, Jensen's inequality, and convex optimization.
On the theoretical side, we provide (i) the first automated algorithm for lower-bounds
on assertion violation probabilities, (ii) the first complete algorithm for upper-bounds
of exponential form in affine programs, and (iii) provably and significantly tighter
upper-bounds than the previous approaches. On the practical side, we show our
algorithms can handle a wide variety of programs from the literature and synthesize
bounds that are remarkably tighter than previous results, in some cases by thousands
of orders of magnitude.
acknowledgement: 'We are very thankful to the anonymous reviewers for the helpful
and valuable comments. The work was partially supported by the National Natural
Science Foundation of China (NSFC) Grant No. 61802254, the Huawei Innovation Research
Program, the ERC CoG 863818 (ForM-SMArt), the Facebook PhD Fellowship Program and
DOC Fellowship #24956 of the Austrian Academy of Sciences (ÖAW).'
article_processing_charge: No
arxiv: 1
author:
- first_name: Jinyi
full_name: Wang, Jinyi
last_name: Wang
- first_name: Yican
full_name: Sun, Yican
last_name: Sun
- first_name: Hongfei
full_name: Fu, Hongfei
id: 3AAD03D6-F248-11E8-B48F-1D18A9856A87
last_name: Fu
- first_name: Krishnendu
full_name: Chatterjee, Krishnendu
id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
last_name: Chatterjee
orcid: 0000-0002-4561-241X
- first_name: Amir Kafshdar
full_name: Goharshady, Amir Kafshdar
id: 391365CE-F248-11E8-B48F-1D18A9856A87
last_name: Goharshady
orcid: 0000-0003-1702-6584
citation:
ama: 'Wang J, Sun Y, Fu H, Chatterjee K, Goharshady AK. Quantitative analysis of
assertion violations in probabilistic programs. In: Proceedings of the 42nd
ACM SIGPLAN International Conference on Programming Language Design and Implementation.
Association for Computing Machinery; 2021:1171-1186. doi:10.1145/3453483.3454102'
apa: 'Wang, J., Sun, Y., Fu, H., Chatterjee, K., & Goharshady, A. K. (2021).
Quantitative analysis of assertion violations in probabilistic programs. In Proceedings
of the 42nd ACM SIGPLAN International Conference on Programming Language Design
and Implementation (pp. 1171–1186). Online: Association for Computing Machinery.
https://doi.org/10.1145/3453483.3454102'
chicago: Wang, Jinyi, Yican Sun, Hongfei Fu, Krishnendu Chatterjee, and Amir Kafshdar
Goharshady. “Quantitative Analysis of Assertion Violations in Probabilistic Programs.”
In Proceedings of the 42nd ACM SIGPLAN International Conference on Programming
Language Design and Implementation, 1171–86. Association for Computing Machinery,
2021. https://doi.org/10.1145/3453483.3454102.
ieee: J. Wang, Y. Sun, H. Fu, K. Chatterjee, and A. K. Goharshady, “Quantitative
analysis of assertion violations in probabilistic programs,” in Proceedings
of the 42nd ACM SIGPLAN International Conference on Programming Language Design
and Implementation, Online, 2021, pp. 1171–1186.
ista: 'Wang J, Sun Y, Fu H, Chatterjee K, Goharshady AK. 2021. Quantitative analysis
of assertion violations in probabilistic programs. Proceedings of the 42nd ACM
SIGPLAN International Conference on Programming Language Design and Implementation.
PLDI: Programming Language Design and Implementation, 1171–1186.'
mla: Wang, Jinyi, et al. “Quantitative Analysis of Assertion Violations in Probabilistic
Programs.” Proceedings of the 42nd ACM SIGPLAN International Conference on
Programming Language Design and Implementation, Association for Computing
Machinery, 2021, pp. 1171–86, doi:10.1145/3453483.3454102.
short: J. Wang, Y. Sun, H. Fu, K. Chatterjee, A.K. Goharshady, in:, Proceedings
of the 42nd ACM SIGPLAN International Conference on Programming Language Design
and Implementation, Association for Computing Machinery, 2021, pp. 1171–1186.
conference:
end_date: 2021-06-26
location: Online
name: 'PLDI: Programming Language Design and Implementation'
start_date: 2021-06-20
date_created: 2021-07-11T22:01:18Z
date_published: 2021-06-01T00:00:00Z
date_updated: 2025-04-15T07:55:05Z
day: '01'
department:
- _id: KrCh
doi: 10.1145/3453483.3454102
ec_funded: 1
external_id:
arxiv:
- '2011.14617'
isi:
- '000723661700076'
isi: 1
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2011.14617
month: '06'
oa: 1
oa_version: Preprint
page: 1171-1186
project:
- _id: 0599E47C-7A3F-11EA-A408-12923DDC885E
call_identifier: H2020
grant_number: '863818'
name: 'Formal Methods for Stochastic Models: Algorithms and Applications'
- _id: 267066CE-B435-11E9-9278-68D0E5697425
name: Quantitative Analysis of Probabilistic Systems with a focus on Crypto-Currencies
publication: Proceedings of the 42nd ACM SIGPLAN International Conference on Programming
Language Design and Implementation
publication_identifier:
isbn:
- '9781450383912'
publication_status: published
publisher: Association for Computing Machinery
quality_controlled: '1'
scopus_import: '1'
status: public
title: Quantitative analysis of assertion violations in probabilistic programs
type: conference
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
year: '2021'
...
---
_id: '9647'
abstract:
- lang: eng
text: 'Gene expression is regulated by the set of transcription factors (TFs) that
bind to the promoter. The ensuing regulating function is often represented as
a combinational logic circuit, where output (gene expression) is determined by
current input values (promoter bound TFs) only. However, the simultaneous arrival
of TFs is a strong assumption, since transcription and translation of genes introduce
intrinsic time delays and there is no global synchronisation among the arrival
times of different molecular species at their targets. We present an experimentally
implementable genetic circuit with two inputs and one output, which in the presence
of small delays in input arrival, exhibits qualitatively distinct population-level
phenotypes, over timescales that are longer than typical cell doubling times.
From a dynamical systems point of view, these phenotypes represent long-lived
transients: although they converge to the same value eventually, they do so after
a very long time span. The key feature of this toy model genetic circuit is that,
despite having only two inputs and one output, it is regulated by twenty-three
distinct DNA-TF configurations, two of which are more stable than others (DNA
looped states), one promoting and another blocking the expression of the output
gene. Small delays in input arrival time result in a majority of cells in the
population quickly reaching the stable state associated with the first input,
while exiting of this stable state occurs at a slow timescale. In order to mechanistically
model the behaviour of this genetic circuit, we used a rule-based modelling language,
and implemented a grid-search to find parameter combinations giving rise to long-lived
transients. Our analysis shows that in the absence of feedback, there exist path-dependent
gene regulatory mechanisms based on the long timescale of transients. The behaviour
of this toy model circuit suggests that gene regulatory networks can exploit event
timing to create phenotypes, and it opens the possibility that they could use
event timing to memorise events, without regulatory feedback. The model reveals
the importance of (i) mechanistically modelling the transitions between the different
DNA-TF states, and (ii) employing transient analysis thereof.'
acknowledgement: 'Tatjana Petrov’s research was supported in part by SNSF Advanced
Postdoctoral Mobility Fellowship grant number P300P2 161067, the Ministry of Science,
Research and the Arts of the state of Baden-Wurttemberg, and the DFG Centre of Excellence
2117 ‘Centre for the Advanced Study of Collective Behaviour’ (ID: 422037984). Claudia
Igler is the recipient of a DOC Fellowship of the Austrian Academy of Sciences.
Thomas A. Henzinger’s research was supported in part by the Austrian Science Fund
(FWF) under grant Z211-N23 (Wittgenstein Award).'
article_processing_charge: No
article_type: original
author:
- first_name: Tatjana
full_name: Petrov, Tatjana
last_name: Petrov
- first_name: Claudia
full_name: Igler, Claudia
id: 46613666-F248-11E8-B48F-1D18A9856A87
last_name: Igler
- first_name: Ali
full_name: Sezgin, Ali
id: 4C7638DA-F248-11E8-B48F-1D18A9856A87
last_name: Sezgin
- 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: Calin C
full_name: Guet, Calin C
id: 47F8433E-F248-11E8-B48F-1D18A9856A87
last_name: Guet
orcid: 0000-0001-6220-2052
citation:
ama: Petrov T, Igler C, Sezgin A, Henzinger TA, Guet CC. Long lived transients in
gene regulation. Theoretical Computer Science. 2021;893:1-16. doi:10.1016/j.tcs.2021.05.023
apa: Petrov, T., Igler, C., Sezgin, A., Henzinger, T. A., & Guet, C. C. (2021).
Long lived transients in gene regulation. Theoretical Computer Science.
Elsevier. https://doi.org/10.1016/j.tcs.2021.05.023
chicago: Petrov, Tatjana, Claudia Igler, Ali Sezgin, Thomas A Henzinger, and Calin
C Guet. “Long Lived Transients in Gene Regulation.” Theoretical Computer Science.
Elsevier, 2021. https://doi.org/10.1016/j.tcs.2021.05.023.
ieee: T. Petrov, C. Igler, A. Sezgin, T. A. Henzinger, and C. C. Guet, “Long lived
transients in gene regulation,” Theoretical Computer Science, vol. 893.
Elsevier, pp. 1–16, 2021.
ista: Petrov T, Igler C, Sezgin A, Henzinger TA, Guet CC. 2021. Long lived transients
in gene regulation. Theoretical Computer Science. 893, 1–16.
mla: Petrov, Tatjana, et al. “Long Lived Transients in Gene Regulation.” Theoretical
Computer Science, vol. 893, Elsevier, 2021, pp. 1–16, doi:10.1016/j.tcs.2021.05.023.
short: T. Petrov, C. Igler, A. Sezgin, T.A. Henzinger, C.C. Guet, Theoretical Computer
Science 893 (2021) 1–16.
corr_author: '1'
date_created: 2021-07-11T22:01:18Z
date_published: 2021-06-04T00:00:00Z
date_updated: 2025-04-15T06:25:56Z
day: '04'
ddc:
- '004'
department:
- _id: ToHe
- _id: CaGu
doi: 10.1016/j.tcs.2021.05.023
external_id:
isi:
- '000710180500002'
file:
- access_level: open_access
checksum: d3aef34cfb13e53bba4cf44d01680793
content_type: application/pdf
creator: dernst
date_created: 2022-05-12T12:13:27Z
date_updated: 2022-05-12T12:13:27Z
file_id: '11364'
file_name: 2021_TheoreticalComputerScience_Petrov.pdf
file_size: 2566504
relation: main_file
success: 1
file_date_updated: 2022-05-12T12:13:27Z
has_accepted_license: '1'
intvolume: ' 893'
isi: 1
language:
- iso: eng
license: https://creativecommons.org/licenses/by-nc-nd/4.0/
month: '06'
oa: 1
oa_version: Published Version
page: 1-16
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: Theoretical Computer Science
publication_identifier:
issn:
- 0304-3975
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: Long lived transients in gene regulation
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: 893
year: '2021'
...
---
_id: '9656'
abstract:
- lang: eng
text: Tropisms, growth responses to environmental stimuli such as light or gravity,
are spectacular examples of adaptive plant development. The plant hormone auxin
serves as a major coordinative signal. The PIN auxin exporters, through their
dynamic polar subcellular localizations, redirect auxin fluxes in response to
environmental stimuli and the resulting auxin gradients across organs underly
differential cell elongation and bending. In this review, we discuss recent advances
concerning regulations of PIN polarity during tropisms, focusing on PIN phosphorylation
and trafficking. We also cover how environmental cues regulate PIN actions during
tropisms, and a crucial role of auxin feedback on PIN polarity during bending
termination. Finally, the interactions between different tropisms are reviewed
to understand plant adaptive growth in the natural environment.
acknowledgement: We are grateful to Lukas Fiedler, Alexandra Mally (IST Austria) and
Dr. Bartel Vanholme (VIB, Ghent) for their critical comments on the manuscript.
We apologize to those researchers whose great work was not cited. This work is supported
by the European Research Council under the European Union’s Horizon 2020 research
and innovation Programme (ERC grant agreement number 742985), and the Austrian Science
Fund (FWF, grant number I 3630-B25) to JF. HH is supported by the China Scholarship
Council (CSC scholarship, 201506870018) and a starting grant from Jiangxi Agriculture
University (9232308314).
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: Huibin
full_name: Han, Huibin
id: 31435098-F248-11E8-B48F-1D18A9856A87
last_name: Han
- first_name: Maciek
full_name: Adamowski, Maciek
id: 45F536D2-F248-11E8-B48F-1D18A9856A87
last_name: Adamowski
orcid: 0000-0001-6463-5257
- first_name: Linlin
full_name: Qi, Linlin
id: 44B04502-A9ED-11E9-B6FC-583AE6697425
last_name: Qi
orcid: 0000-0001-5187-8401
- first_name: SS
full_name: Alotaibi, SS
last_name: Alotaibi
- first_name: Jiří
full_name: Friml, Jiří
id: 4159519E-F248-11E8-B48F-1D18A9856A87
last_name: Friml
orcid: 0000-0002-8302-7596
citation:
ama: Han H, Adamowski M, Qi L, Alotaibi S, Friml J. PIN-mediated polar auxin transport
regulations in plant tropic responses. New Phytologist. 2021;232(2):510-522.
doi:10.1111/nph.17617
apa: Han, H., Adamowski, M., Qi, L., Alotaibi, S., & Friml, J. (2021). PIN-mediated
polar auxin transport regulations in plant tropic responses. New Phytologist.
Wiley. https://doi.org/10.1111/nph.17617
chicago: Han, Huibin, Maciek Adamowski, Linlin Qi, SS Alotaibi, and Jiří Friml.
“PIN-Mediated Polar Auxin Transport Regulations in Plant Tropic Responses.” New
Phytologist. Wiley, 2021. https://doi.org/10.1111/nph.17617.
ieee: H. Han, M. Adamowski, L. Qi, S. Alotaibi, and J. Friml, “PIN-mediated polar
auxin transport regulations in plant tropic responses,” New Phytologist,
vol. 232, no. 2. Wiley, pp. 510–522, 2021.
ista: Han H, Adamowski M, Qi L, Alotaibi S, Friml J. 2021. PIN-mediated polar auxin
transport regulations in plant tropic responses. New Phytologist. 232(2), 510–522.
mla: Han, Huibin, et al. “PIN-Mediated Polar Auxin Transport Regulations in Plant
Tropic Responses.” New Phytologist, vol. 232, no. 2, Wiley, 2021, pp. 510–22,
doi:10.1111/nph.17617.
short: H. Han, M. Adamowski, L. Qi, S. Alotaibi, J. Friml, New Phytologist 232 (2021)
510–522.
corr_author: '1'
date_created: 2021-07-14T15:29:14Z
date_published: 2021-10-01T00:00:00Z
date_updated: 2025-04-14T07:45:00Z
day: '01'
ddc:
- '580'
department:
- _id: JiFr
doi: 10.1111/nph.17617
ec_funded: 1
external_id:
isi:
- '000680587100001'
pmid:
- '34254313'
file:
- access_level: open_access
checksum: 6422a6eb329b52d96279daaee0fcf189
content_type: application/pdf
creator: kschuh
date_created: 2021-10-07T13:42:47Z
date_updated: 2021-10-07T13:42:47Z
file_id: '10105'
file_name: 2021_NewPhytologist_Han.pdf
file_size: 1939800
relation: main_file
success: 1
file_date_updated: 2021-10-07T13:42:47Z
has_accepted_license: '1'
intvolume: ' 232'
isi: 1
issue: '2'
language:
- iso: eng
license: https://creativecommons.org/licenses/by/4.0/
month: '10'
oa: 1
oa_version: Published Version
page: 510-522
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
publication: New Phytologist
publication_identifier:
eissn:
- 1469-8137
issn:
- 0028-646x
publication_status: published
publisher: Wiley
quality_controlled: '1'
scopus_import: '1'
status: public
title: PIN-mediated polar auxin transport regulations in plant tropic responses
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: 232
year: '2021'
...
---
_id: '9657'
abstract:
- lang: eng
text: To overcome nitrogen deficiency, legume roots establish symbiotic interactions
with nitrogen-fixing rhizobia that is fostered in specialized organs (nodules).
Similar to other organs, nodule formation is determined by a local maximum of
the phytohormone auxin at the primordium site. However, how auxin regulates nodule
development remains poorly understood. Here, we found that in soybean, (Glycine
max), dynamic auxin transport driven by PIN-FORMED (PIN) transporter GmPIN1 is
involved in nodule primordium formation. GmPIN1 was specifically expressed in
nodule primordium cells and GmPIN1 was polarly localized in these cells. Two nodulation
regulators, (iso)flavonoids trigger expanded distribution of GmPIN1b to root cortical
cells, and cytokinin rearranges GmPIN1b polarity. Gmpin1abc triple mutants generated
with CRISPR-Cas9 showed impaired establishment of auxin maxima in nodule meristems
and aberrant divisions in the nodule primordium cells. Moreover, overexpression
of GmPIN1 suppressed nodule primordium initiation. GmPIN9d, an ortholog of Arabidopsis
thaliana PIN2, acts together with GmPIN1 later in nodule development to acropetally
transport auxin in vascular bundles, fine-tuning the auxin supply for nodule enlargement.
Our findings reveal how PIN-dependent auxin transport modulates different aspects
of soybean nodule development and suggest that establishment of auxin gradient
is a prerequisite for the proper interaction between legumes and rhizobia.
article_processing_charge: No
article_type: original
author:
- first_name: Z
full_name: Gao, Z
last_name: Gao
- first_name: Z
full_name: Chen, Z
last_name: Chen
- first_name: Y
full_name: Cui, Y
last_name: Cui
- first_name: M
full_name: Ke, M
last_name: Ke
- first_name: H
full_name: Xu, H
last_name: Xu
- first_name: Q
full_name: Xu, Q
last_name: Xu
- first_name: J
full_name: Chen, J
last_name: Chen
- first_name: Y
full_name: Li, Y
last_name: Li
- first_name: L
full_name: Huang, L
last_name: Huang
- first_name: H
full_name: Zhao, H
last_name: Zhao
- first_name: D
full_name: Huang, D
last_name: Huang
- first_name: S
full_name: Mai, S
last_name: Mai
- first_name: T
full_name: Xu, T
last_name: Xu
- first_name: X
full_name: Liu, X
last_name: Liu
- first_name: S
full_name: Li, S
last_name: Li
- first_name: Y
full_name: Guan, Y
last_name: Guan
- first_name: W
full_name: Yang, W
last_name: Yang
- first_name: Jiří
full_name: Friml, Jiří
id: 4159519E-F248-11E8-B48F-1D18A9856A87
last_name: Friml
orcid: 0000-0002-8302-7596
- first_name: J
full_name: Petrášek, J
last_name: Petrášek
- first_name: J
full_name: Zhang, J
last_name: Zhang
- first_name: X
full_name: Chen, X
last_name: Chen
citation:
ama: Gao Z, Chen Z, Cui Y, et al. GmPIN-dependent polar auxin transport is involved
in soybean nodule development. Plant Cell. 2021;33(9):2981–3003. doi:10.1093/plcell/koab183
apa: Gao, Z., Chen, Z., Cui, Y., Ke, M., Xu, H., Xu, Q., … Chen, X. (2021). GmPIN-dependent
polar auxin transport is involved in soybean nodule development. Plant Cell.
American Society of Plant Biologists. https://doi.org/10.1093/plcell/koab183
chicago: Gao, Z, Z Chen, Y Cui, M Ke, H Xu, Q Xu, J Chen, et al. “GmPIN-Dependent
Polar Auxin Transport Is Involved in Soybean Nodule Development.” Plant Cell.
American Society of Plant Biologists, 2021. https://doi.org/10.1093/plcell/koab183.
ieee: Z. Gao et al., “GmPIN-dependent polar auxin transport is involved in
soybean nodule development,” Plant Cell, vol. 33, no. 9. American Society
of Plant Biologists, pp. 2981–3003, 2021.
ista: Gao Z, Chen Z, Cui Y, Ke M, Xu H, Xu Q, Chen J, Li Y, Huang L, Zhao H, Huang
D, Mai S, Xu T, Liu X, Li S, Guan Y, Yang W, Friml J, Petrášek J, Zhang J, Chen
X. 2021. GmPIN-dependent polar auxin transport is involved in soybean nodule development.
Plant Cell. 33(9), 2981–3003.
mla: Gao, Z., et al. “GmPIN-Dependent Polar Auxin Transport Is Involved in Soybean
Nodule Development.” Plant Cell, vol. 33, no. 9, American Society of Plant
Biologists, 2021, pp. 2981–3003, doi:10.1093/plcell/koab183.
short: Z. Gao, Z. Chen, Y. Cui, M. Ke, H. Xu, Q. Xu, J. Chen, Y. Li, L. Huang, H.
Zhao, D. Huang, S. Mai, T. Xu, X. Liu, S. Li, Y. Guan, W. Yang, J. Friml, J. Petrášek,
J. Zhang, X. Chen, Plant Cell 33 (2021) 2981–3003.
date_created: 2021-07-14T15:32:43Z
date_published: 2021-07-07T00:00:00Z
date_updated: 2024-10-21T06:02:03Z
day: '07'
ddc:
- '580'
department:
- _id: JiFr
doi: 10.1093/plcell/koab183
external_id:
isi:
- '000702165300012'
pmid:
- '34240197'
file:
- access_level: open_access
checksum: 6715712ec306c321f0204c817b7f8ae7
content_type: application/pdf
creator: cziletti
date_created: 2021-07-19T12:13:34Z
date_updated: 2021-07-19T12:13:34Z
file_id: '9691'
file_name: 2021_PlantCell_Gao.pdf
file_size: 10566921
relation: main_file
success: 1
file_date_updated: 2021-07-19T12:13:34Z
has_accepted_license: '1'
intvolume: ' 33'
isi: 1
issue: '9'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
page: 2981–3003
pmid: 1
publication: Plant Cell
publication_identifier:
eissn:
- 1532-298x
issn:
- 1040-4651
publication_status: published
publisher: American Society of Plant Biologists
quality_controlled: '1'
scopus_import: '1'
status: public
title: GmPIN-dependent polar auxin transport is involved in soybean nodule development
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: 33
year: '2021'
...
---
_id: '9669'
abstract:
- lang: eng
text: The set of known stable phases of water may not be complete, and some of the
phase boundaries between them are fuzzy. Starting from liquid water and a comprehensive
set of 50 ice structures, we compute the phase diagram at three hybrid density-functional-theory
levels of approximation, accounting for thermal and nuclear fluctuations as well
as proton disorder. Such calculations are only made tractable because we combine
machine-learning methods and advanced free-energy techniques. The computed phase
diagram is in qualitative agreement with experiment, particularly at pressures ≲ 8000
bar, and the discrepancy in chemical potential is comparable with the subtle uncertainties
introduced by proton disorder and the spread between the three hybrid functionals.
None of the hypothetical ice phases considered is thermodynamically stable in
our calculations, suggesting the completeness of the experimental water phase
diagram in the region considered. Our work demonstrates the feasibility of predicting
the phase diagram of a polymorphic system from first principles and provides a
thermodynamic way of testing the limits of quantum-mechanical calculations.
article_number: '588'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Aleks
full_name: Reinhardt, Aleks
last_name: Reinhardt
- first_name: Bingqing
full_name: Cheng, Bingqing
id: cbe3cda4-d82c-11eb-8dc7-8ff94289fcc9
last_name: Cheng
orcid: 0000-0002-3584-9632
citation:
ama: Reinhardt A, Cheng B. Quantum-mechanical exploration of the phase diagram of
water. Nature Communications. 2021;12(1). doi:10.1038/s41467-020-20821-w
apa: Reinhardt, A., & Cheng, B. (2021). Quantum-mechanical exploration of the
phase diagram of water. Nature Communications. Springer Nature. https://doi.org/10.1038/s41467-020-20821-w
chicago: Reinhardt, Aleks, and Bingqing Cheng. “Quantum-Mechanical Exploration of
the Phase Diagram of Water.” Nature Communications. Springer Nature, 2021.
https://doi.org/10.1038/s41467-020-20821-w.
ieee: A. Reinhardt and B. Cheng, “Quantum-mechanical exploration of the phase diagram
of water,” Nature Communications, vol. 12, no. 1. Springer Nature, 2021.
ista: Reinhardt A, Cheng B. 2021. Quantum-mechanical exploration of the phase diagram
of water. Nature Communications. 12(1), 588.
mla: Reinhardt, Aleks, and Bingqing Cheng. “Quantum-Mechanical Exploration of the
Phase Diagram of Water.” Nature Communications, vol. 12, no. 1, 588, Springer
Nature, 2021, doi:10.1038/s41467-020-20821-w.
short: A. Reinhardt, B. Cheng, Nature Communications 12 (2021).
date_created: 2021-07-15T13:48:13Z
date_published: 2021-01-26T00:00:00Z
date_updated: 2023-02-23T14:04:20Z
day: '26'
ddc:
- '530'
- '540'
doi: 10.1038/s41467-020-20821-w
extern: '1'
external_id:
arxiv:
- '2010.13729'
pmid:
- '33500405'
file:
- access_level: open_access
checksum: 8b5e1fbe2f1ab936047008043150e894
content_type: application/pdf
creator: asandaue
date_created: 2021-07-15T13:55:46Z
date_updated: 2021-07-15T13:55:46Z
file_id: '9670'
file_name: 2021_NatureCommunications_Reinhardt.pdf
file_size: 1180227
relation: main_file
success: 1
file_date_updated: 2021-07-15T13:55:46Z
has_accepted_license: '1'
intvolume: ' 12'
issue: '1'
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
pmid: 1
publication: Nature Communications
publication_identifier:
eissn:
- 2041-1723
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Quantum-mechanical exploration of the phase diagram of water
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: 6785fbc1-c503-11eb-8a32-93094b40e1cf
volume: 12
year: '2021'
...
---
_id: '9678'
abstract:
- lang: eng
text: We introduce a new graph problem, the token dropping game, and we show how
to solve it efficiently in a distributed setting. We use the token dropping game
as a tool to design an efficient distributed algorithm for stable orientations
and more generally for locally optimal semi-matchings. The prior work by Czygrinow
et al. (DISC 2012) finds a stable orientation in O(Δ^5) rounds in graphs of maximum
degree Δ, while we improve it to O(Δ^4) and also prove a lower bound of Ω(Δ).
For the more general problem of locally optimal semi-matchings, the prior upper
bound is O(S^5) and our new algorithm runs in O(C · S^4) rounds, which is an improvement
for C = o(S); here C and S are the maximum degrees of customers and servers, respectively.
acknowledgement: We thank Orr Fischer, Juho Hirvonen, and Tuomo Lempiäinen for valuable
discussions. This project has received funding from the European Union’s Horizon
2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement
No. 840605.
article_processing_charge: No
arxiv: 1
author:
- first_name: Sebastian
full_name: Brandt, Sebastian
last_name: Brandt
- first_name: Barbara
full_name: Keller, Barbara
last_name: Keller
- first_name: Joel
full_name: Rybicki, Joel
id: 334EFD2E-F248-11E8-B48F-1D18A9856A87
last_name: Rybicki
orcid: 0000-0002-6432-6646
- first_name: Jukka
full_name: Suomela, Jukka
last_name: Suomela
- first_name: Jara
full_name: Uitto, Jara
last_name: Uitto
citation:
ama: 'Brandt S, Keller B, Rybicki J, Suomela J, Uitto J. Efficient load-balancing
through distributed token dropping. In: Annual ACM Symposium on Parallelism
in Algorithms and Architectures. ; 2021:129-139. doi:10.1145/3409964.3461785'
apa: Brandt, S., Keller, B., Rybicki, J., Suomela, J., & Uitto, J. (2021). Efficient
load-balancing through distributed token dropping. In Annual ACM Symposium
on Parallelism in Algorithms and Architectures (pp. 129–139). Virtual Event,
United States. https://doi.org/10.1145/3409964.3461785
chicago: Brandt, Sebastian, Barbara Keller, Joel Rybicki, Jukka Suomela, and Jara
Uitto. “Efficient Load-Balancing through Distributed Token Dropping.” In Annual
ACM Symposium on Parallelism in Algorithms and Architectures, 129–39, 2021.
https://doi.org/10.1145/3409964.3461785.
ieee: S. Brandt, B. Keller, J. Rybicki, J. Suomela, and J. Uitto, “Efficient load-balancing
through distributed token dropping,” in Annual ACM Symposium on Parallelism
in Algorithms and Architectures, Virtual Event, United States, 2021, pp.
129–139.
ista: 'Brandt S, Keller B, Rybicki J, Suomela J, Uitto J. 2021. Efficient load-balancing
through distributed token dropping. Annual ACM Symposium on Parallelism in Algorithms
and Architectures. SPAA: Symposium on Parallelism in Algorithms and Architectures
, 129–139.'
mla: Brandt, Sebastian, et al. “Efficient Load-Balancing through Distributed Token
Dropping.” Annual ACM Symposium on Parallelism in Algorithms and Architectures,
2021, pp. 129–39, doi:10.1145/3409964.3461785.
short: S. Brandt, B. Keller, J. Rybicki, J. Suomela, J. Uitto, in:, Annual ACM Symposium
on Parallelism in Algorithms and Architectures, 2021, pp. 129–139.
conference:
end_date: 2021-07-08
location: ' Virtual Event, United States'
name: 'SPAA: Symposium on Parallelism in Algorithms and Architectures '
start_date: 2021-07-06
date_created: 2021-07-18T22:01:22Z
date_published: 2021-07-06T00:00:00Z
date_updated: 2025-04-14T07:50:55Z
day: '06'
department:
- _id: DaAl
doi: 10.1145/3409964.3461785
ec_funded: 1
external_id:
arxiv:
- '2005.07761'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2005.07761
month: '07'
oa: 1
oa_version: Preprint
page: 129-139
project:
- _id: 26A5D39A-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '840605'
name: Coordination in constrained and natural distributed systems
publication: Annual ACM Symposium on Parallelism in Algorithms and Architectures
publication_identifier:
isbn:
- '9781450380706'
publication_status: published
quality_controlled: '1'
related_material:
record:
- id: '15074'
relation: earlier_version
status: public
scopus_import: '1'
status: public
title: Efficient load-balancing through distributed token dropping
type: conference
user_id: D865714E-FA4E-11E9-B85B-F5C5E5697425
year: '2021'
...
---
_id: '9696'
abstract:
- lang: eng
text: Most water in the universe may be superionic, and its thermodynamic and transport
properties are crucial for planetary science but difficult to probe experimentally
or theoretically. We use machine learning and free energy methods to overcome
the limitations of quantum mechanical simulations, and characterize hydrogen diffusion,
superionic transitions, and phase behaviors of water at extreme conditions. We
predict that a close-packed superionic phase with mixed stacking is stable over
a wide temperature and pressure range, while a body-centered cubic phase is only
thermodynamically stable in a small window but is kinetically favored. Our phase
boundaries, which are consistent with the existing-albeit scarce-experimental
observations, help resolve the fractions of insulating ice, different superionic
phases, and liquid water inside of ice giants.
article_number: '2103.09035'
article_processing_charge: No
arxiv: 1
author:
- first_name: Bingqing
full_name: Cheng, Bingqing
id: cbe3cda4-d82c-11eb-8dc7-8ff94289fcc9
last_name: Cheng
orcid: 0000-0002-3584-9632
- first_name: Mandy
full_name: Bethkenhagen, Mandy
last_name: Bethkenhagen
- first_name: Chris J.
full_name: Pickard, Chris J.
last_name: Pickard
- first_name: Sebastien
full_name: Hamel, Sebastien
last_name: Hamel
citation:
ama: Cheng B, Bethkenhagen M, Pickard CJ, Hamel S. Predicting the phase behaviors
of superionic water at planetary conditions. arXiv. doi:10.48550/arXiv.2103.09035
apa: Cheng, B., Bethkenhagen, M., Pickard, C. J., & Hamel, S. (n.d.). Predicting
the phase behaviors of superionic water at planetary conditions. arXiv.
https://doi.org/10.48550/arXiv.2103.09035
chicago: Cheng, Bingqing, Mandy Bethkenhagen, Chris J. Pickard, and Sebastien Hamel.
“Predicting the Phase Behaviors of Superionic Water at Planetary Conditions.”
ArXiv, n.d. https://doi.org/10.48550/arXiv.2103.09035.
ieee: B. Cheng, M. Bethkenhagen, C. J. Pickard, and S. Hamel, “Predicting the phase
behaviors of superionic water at planetary conditions,” arXiv. .
ista: Cheng B, Bethkenhagen M, Pickard CJ, Hamel S. Predicting the phase behaviors
of superionic water at planetary conditions. arXiv, 2103.09035.
mla: Cheng, Bingqing, et al. “Predicting the Phase Behaviors of Superionic Water
at Planetary Conditions.” ArXiv, 2103.09035, doi:10.48550/arXiv.2103.09035.
short: B. Cheng, M. Bethkenhagen, C.J. Pickard, S. Hamel, ArXiv (n.d.).
date_created: 2021-07-20T06:42:29Z
date_published: 2021-03-16T00:00:00Z
date_updated: 2025-06-26T11:49:07Z
day: '16'
doi: 10.48550/arXiv.2103.09035
extern: '1'
external_id:
arxiv:
- '2103.09035'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2103.09035
month: '03'
oa: 1
oa_version: Preprint
publication: arXiv
publication_status: submitted
related_material:
record:
- id: '19909'
relation: later_version
status: public
status: public
title: Predicting the phase behaviors of superionic water at planetary conditions
type: preprint
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2021'
...
---
_id: '9698'
abstract:
- lang: eng
text: Machine learning models are poised to make a transformative impact on chemical
sciences by dramatically accelerating computational algorithms and amplifying
insights available from computational chemistry methods. However, achieving this
requires a confluence and coaction of expertise in computer science and physical
sciences. This review is written for new and experienced researchers working at
the intersection of both fields. We first provide concise tutorials of computational
chemistry and machine learning methods, showing how insights involving both can
be achieved. We then follow with a critical review of noteworthy applications
that demonstrate how computational chemistry and machine learning can be used
together to provide insightful (and useful) predictions in molecular and materials
modeling, retrosyntheses, catalysis, and drug design.
article_processing_charge: No
article_type: review
arxiv: 1
author:
- first_name: John A.
full_name: Keith, John A.
last_name: Keith
- first_name: Valentin
full_name: Valentin Vassilev-Galindo, Valentin
last_name: Valentin Vassilev-Galindo
- first_name: Bingqing
full_name: Cheng, Bingqing
id: cbe3cda4-d82c-11eb-8dc7-8ff94289fcc9
last_name: Cheng
orcid: 0000-0002-3584-9632
- first_name: Stefan
full_name: Chmiela, Stefan
last_name: Chmiela
- first_name: Michael
full_name: Gastegger, Michael
last_name: Gastegger
- first_name: Klaus-Robert
full_name: Müller, Klaus-Robert
last_name: Müller
- first_name: Alexandre
full_name: Tkatchenko, Alexandre
last_name: Tkatchenko
citation:
ama: Keith JA, Valentin Vassilev-Galindo V, Cheng B, et al. Combining machine learning
and computational chemistry for predictive insights into chemical systems. Chemical
Reviews. 2021;121(16):9816-9872. doi:10.1021/acs.chemrev.1c00107
apa: Keith, J. A., Valentin Vassilev-Galindo, V., Cheng, B., Chmiela, S., Gastegger,
M., Müller, K.-R., & Tkatchenko, A. (2021). Combining machine learning and
computational chemistry for predictive insights into chemical systems. Chemical
Reviews. American Chemical Society. https://doi.org/10.1021/acs.chemrev.1c00107
chicago: Keith, John A., Valentin Valentin Vassilev-Galindo, Bingqing Cheng, Stefan
Chmiela, Michael Gastegger, Klaus-Robert Müller, and Alexandre Tkatchenko. “Combining
Machine Learning and Computational Chemistry for Predictive Insights into Chemical
Systems.” Chemical Reviews. American Chemical Society, 2021. https://doi.org/10.1021/acs.chemrev.1c00107.
ieee: J. A. Keith et al., “Combining machine learning and computational chemistry
for predictive insights into chemical systems,” Chemical Reviews, vol.
121, no. 16. American Chemical Society, pp. 9816–9872, 2021.
ista: Keith JA, Valentin Vassilev-Galindo V, Cheng B, Chmiela S, Gastegger M, Müller
K-R, Tkatchenko A. 2021. Combining machine learning and computational chemistry
for predictive insights into chemical systems. Chemical Reviews. 121(16), 9816–9872.
mla: Keith, John A., et al. “Combining Machine Learning and Computational Chemistry
for Predictive Insights into Chemical Systems.” Chemical Reviews, vol.
121, no. 16, American Chemical Society, 2021, pp. 9816–72, doi:10.1021/acs.chemrev.1c00107.
short: J.A. Keith, V. Valentin Vassilev-Galindo, B. Cheng, S. Chmiela, M. Gastegger,
K.-R. Müller, A. Tkatchenko, Chemical Reviews 121 (2021) 9816–9872.
date_created: 2021-07-20T11:18:37Z
date_published: 2021-07-07T00:00:00Z
date_updated: 2023-05-08T11:31:03Z
day: '07'
doi: 10.1021/acs.chemrev.1c00107
extern: '1'
external_id:
arxiv:
- '2102.06321'
intvolume: ' 121'
issue: '16'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1021/acs.chemrev.1c00107
month: '07'
oa: 1
oa_version: Published Version
page: 9816-9872
publication: Chemical Reviews
publication_identifier:
eissn:
- 1520-6890
issn:
- 0009-2665
publication_status: published
publisher: American Chemical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Combining machine learning and computational chemistry for predictive insights
into chemical systems
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 121
year: '2021'
...
---
_id: '9746'
abstract:
- lang: eng
text: Evolutionary adaptation is a major source of antibiotic resistance in bacterial
pathogens. Evolution-informed therapy aims to constrain resistance by accounting
for bacterial evolvability. Sequential treatments with antibiotics that target
different bacterial processes were previously shown to limit adaptation through
genetic resistance trade-offs and negative hysteresis. Treatment with homogeneous
sets of antibiotics is generally viewed to be disadvantageous, as it should rapidly
lead to cross-resistance. We here challenged this assumption by determining the
evolutionary response of Pseudomonas aeruginosa to experimental sequential treatments
involving both heterogenous and homogeneous antibiotic sets. To our surprise,
we found that fast switching between only β-lactam antibiotics resulted in increased
extinction of bacterial populations. We demonstrate that extinction is favored
by low rates of spontaneous resistance emergence and low levels of spontaneous
cross-resistance among the antibiotics in sequence. The uncovered principles may
help to guide the optimized use of available antibiotics in highly potent, evolution-informed
treatment designs.
acknowledgement: We would like to thank Leif Tueffers and João Botelho for discussions
and suggestions as well as Kira Haas and Julia Bunk for technical support. We acknowledge
financial support from the German Science Foundation (grant SCHU 1415/12-2 to HS,
and funding under Germany’s Excellence Strategy EXC 2167–390884018 as well as the
Research Training Group 2501 TransEvo to HS and SN), the Max Planck Society (IMPRS
scholarship to AB; Max-Planck fellowship to HS), and the Leibniz Science Campus
Evolutionary Medicine of the Lung (EvoLUNG, to HS and SN). This work was further
supported by the German Science Foundation Research Infrastructure NGS_CC (project
407495230) as part of the Next Generation Sequencing Competence Network (project
423957469). NGS analyses were carried out at the Competence Centre for Genomic Analysis
Kiel (CCGA Kiel).
article_number: e68876
article_processing_charge: No
article_type: original
author:
- first_name: Aditi
full_name: Batra, Aditi
last_name: Batra
- first_name: Roderich
full_name: Römhild, Roderich
id: 68E56E44-62B0-11EA-B963-444F3DDC885E
last_name: Römhild
orcid: 0000-0001-9480-5261
- first_name: Emilie
full_name: Rousseau, Emilie
last_name: Rousseau
- first_name: Sören
full_name: Franzenburg, Sören
last_name: Franzenburg
- first_name: Stefan
full_name: Niemann, Stefan
last_name: Niemann
- first_name: Hinrich
full_name: Schulenburg, Hinrich
last_name: Schulenburg
citation:
ama: Batra A, Römhild R, Rousseau E, Franzenburg S, Niemann S, Schulenburg H. High
potency of sequential therapy with only beta-lactam antibiotics. eLife.
2021;10. doi:10.7554/elife.68876
apa: Batra, A., Römhild, R., Rousseau, E., Franzenburg, S., Niemann, S., & Schulenburg,
H. (2021). High potency of sequential therapy with only beta-lactam antibiotics.
ELife. eLife Sciences Publications. https://doi.org/10.7554/elife.68876
chicago: Batra, Aditi, Roderich Römhild, Emilie Rousseau, Sören Franzenburg, Stefan
Niemann, and Hinrich Schulenburg. “High Potency of Sequential Therapy with Only
Beta-Lactam Antibiotics.” ELife. eLife Sciences Publications, 2021. https://doi.org/10.7554/elife.68876.
ieee: A. Batra, R. Römhild, E. Rousseau, S. Franzenburg, S. Niemann, and H. Schulenburg,
“High potency of sequential therapy with only beta-lactam antibiotics,” eLife,
vol. 10. eLife Sciences Publications, 2021.
ista: Batra A, Römhild R, Rousseau E, Franzenburg S, Niemann S, Schulenburg H. 2021.
High potency of sequential therapy with only beta-lactam antibiotics. eLife. 10,
e68876.
mla: Batra, Aditi, et al. “High Potency of Sequential Therapy with Only Beta-Lactam
Antibiotics.” ELife, vol. 10, e68876, eLife Sciences Publications, 2021,
doi:10.7554/elife.68876.
short: A. Batra, R. Römhild, E. Rousseau, S. Franzenburg, S. Niemann, H. Schulenburg,
ELife 10 (2021).
date_created: 2021-07-28T13:36:57Z
date_published: 2021-07-28T00:00:00Z
date_updated: 2023-08-11T10:26:29Z
day: '28'
department:
- _id: CaGu
doi: 10.7554/elife.68876
external_id:
isi:
- '000692027800001'
pmid:
- '34318749'
intvolume: ' 10'
isi: 1
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.7554/eLife.68876
month: '07'
oa: 1
oa_version: Published Version
pmid: 1
publication: eLife
publication_identifier:
eissn:
- 2050-084X
publication_status: published
publisher: eLife Sciences Publications
quality_controlled: '1'
scopus_import: '1'
status: public
title: High potency of sequential therapy with only beta-lactam antibiotics
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 10
year: '2021'
...
---
_id: '9759'
acknowledgement: The authors thank Inez Lam of Johns Hopkins University for valuable
comments on an earlier version of the manuscript. We also thank the facilitators
of the 2019–2020 eLife Community Ambassador program.
article_number: e1009124
article_processing_charge: Yes
article_type: letter_note
author:
- first_name: Michael John
full_name: Bartlett, Michael John
last_name: Bartlett
- first_name: Feyza N
full_name: Arslan, Feyza N
id: 49DA7910-F248-11E8-B48F-1D18A9856A87
last_name: Arslan
orcid: 0000-0001-5809-9566
- first_name: Adriana
full_name: Bankston, Adriana
last_name: Bankston
- first_name: Sarvenaz
full_name: Sarabipour, Sarvenaz
last_name: Sarabipour
citation:
ama: Bartlett MJ, Arslan FN, Bankston A, Sarabipour S. Ten simple rules to improve
academic work- life balance. PLoS Computational Biology. 2021;17(7). doi:10.1371/journal.pcbi.1009124
apa: Bartlett, M. J., Arslan, F. N., Bankston, A., & Sarabipour, S. (2021).
Ten simple rules to improve academic work- life balance. PLoS Computational
Biology. Public Library of Science. https://doi.org/10.1371/journal.pcbi.1009124
chicago: Bartlett, Michael John, Feyza N Arslan, Adriana Bankston, and Sarvenaz
Sarabipour. “Ten Simple Rules to Improve Academic Work- Life Balance.” PLoS
Computational Biology. Public Library of Science, 2021. https://doi.org/10.1371/journal.pcbi.1009124.
ieee: M. J. Bartlett, F. N. Arslan, A. Bankston, and S. Sarabipour, “Ten simple
rules to improve academic work- life balance,” PLoS Computational Biology,
vol. 17, no. 7. Public Library of Science, 2021.
ista: Bartlett MJ, Arslan FN, Bankston A, Sarabipour S. 2021. Ten simple rules to
improve academic work- life balance. PLoS Computational Biology. 17(7), e1009124.
mla: Bartlett, Michael John, et al. “Ten Simple Rules to Improve Academic Work-
Life Balance.” PLoS Computational Biology, vol. 17, no. 7, e1009124, Public
Library of Science, 2021, doi:10.1371/journal.pcbi.1009124.
short: M.J. Bartlett, F.N. Arslan, A. Bankston, S. Sarabipour, PLoS Computational
Biology 17 (2021).
date_created: 2021-08-01T22:01:21Z
date_published: 2021-07-15T00:00:00Z
date_updated: 2025-07-10T12:02:02Z
day: '15'
ddc:
- '613'
department:
- _id: CaHe
doi: 10.1371/journal.pcbi.1009124
external_id:
isi:
- '000677713500008'
pmid:
- '34264932'
file:
- access_level: open_access
checksum: e56d91f0eeadb36f143a90e2c1b3ab63
content_type: application/pdf
creator: cchlebak
date_created: 2021-08-05T12:06:49Z
date_updated: 2021-08-05T12:06:49Z
file_id: '9771'
file_name: 2021_PlosCompBio_Bartlett.pdf
file_size: 693633
relation: main_file
file_date_updated: 2021-08-05T12:06:49Z
has_accepted_license: '1'
intvolume: ' 17'
isi: 1
issue: '7'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
pmid: 1
publication: PLoS Computational Biology
publication_identifier:
eissn:
- 1553-7358
issn:
- 1553-734X
publication_status: published
publisher: Public Library of Science
scopus_import: '1'
status: public
title: Ten simple rules to improve academic work- life balance
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: 17
year: '2021'
...
---
_id: '9769'
abstract:
- lang: eng
text: A few years ago, flow equations were introduced as a technique for calculating
the ground-state energies of cold Bose gases with and without impurities. In this
paper, we extend this approach to compute observables other than the energy. As
an example, we calculate the densities, and phase fluctuations of one-dimensional
Bose gases with one and two impurities. For a single mobile impurity, we use flow
equations to validate the mean-field results obtained upon the Lee-Low-Pines transformation.
We show that the mean-field approximation is accurate for all values of the boson-impurity
interaction strength as long as the phase coherence length is much larger than
the healing length of the condensate. For two static impurities, we calculate
impurity-impurity interactions induced by the Bose gas. We find that leading order
perturbation theory fails when boson-impurity interactions are stronger than boson-boson
interactions. The mean-field approximation reproduces the flow equation results
for all values of the boson-impurity interaction strength as long as boson-boson
interactions are weak.
acknowledgement: We thank Matthias Heinz and Volker Karle for helpful comments on
the manuscript; Zoran Ristivojevic for useful correspondence regarding mean-field
calculations of induced impurity-impurity interactions; Fabian Grusdt for sharing
with us the data for the densities presented in Ref. [14]. This work has received
funding from the DFG Project No. 413495248 [VO 2437/1-1] (F. B., H.-W. H., A. G.
V.) and European Union’s Horizon 2020 research and innovation programme under the
Marie Skłodowska-Curie Grant Agreement No. 754411 (A. G. V.). M. L. acknowledges
support by the European Research Council (ERC) Starting Grant No. 801770 (ANGULON).
H.-W.H. thanks the ECT* for hospitality during the workshop “Universal physics in
Many-Body Quantum Systems – From Atoms to Quarks". This infrastructure is part of
a project that has received funding from the European Union’s Horizon 2020 research
and innovation programme under grant agreement No 824093. H.-W.H. was supported
by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) - Project-ID
279384907 - SFB 1245.
article_number: '008'
article_processing_charge: Yes
article_type: original
arxiv: 1
author:
- first_name: Fabian
full_name: Brauneis, Fabian
last_name: Brauneis
- first_name: Hans-Werner
full_name: Hammer, Hans-Werner
last_name: Hammer
- first_name: Mikhail
full_name: Lemeshko, Mikhail
id: 37CB05FA-F248-11E8-B48F-1D18A9856A87
last_name: Lemeshko
orcid: 0000-0002-6990-7802
- first_name: Artem
full_name: Volosniev, Artem
id: 37D278BC-F248-11E8-B48F-1D18A9856A87
last_name: Volosniev
orcid: 0000-0003-0393-5525
citation:
ama: 'Brauneis F, Hammer H-W, Lemeshko M, Volosniev A. Impurities in a one-dimensional
Bose gas: The flow equation approach. SciPost Physics. 2021;11(1). doi:10.21468/scipostphys.11.1.008'
apa: 'Brauneis, F., Hammer, H.-W., Lemeshko, M., & Volosniev, A. (2021). Impurities
in a one-dimensional Bose gas: The flow equation approach. SciPost Physics.
SciPost Foundation. https://doi.org/10.21468/scipostphys.11.1.008'
chicago: 'Brauneis, Fabian, Hans-Werner Hammer, Mikhail Lemeshko, and Artem Volosniev.
“Impurities in a One-Dimensional Bose Gas: The Flow Equation Approach.” SciPost
Physics. SciPost Foundation, 2021. https://doi.org/10.21468/scipostphys.11.1.008.'
ieee: 'F. Brauneis, H.-W. Hammer, M. Lemeshko, and A. Volosniev, “Impurities in
a one-dimensional Bose gas: The flow equation approach,” SciPost Physics,
vol. 11, no. 1. SciPost Foundation, 2021.'
ista: 'Brauneis F, Hammer H-W, Lemeshko M, Volosniev A. 2021. Impurities in a one-dimensional
Bose gas: The flow equation approach. SciPost Physics. 11(1), 008.'
mla: 'Brauneis, Fabian, et al. “Impurities in a One-Dimensional Bose Gas: The Flow
Equation Approach.” SciPost Physics, vol. 11, no. 1, 008, SciPost Foundation,
2021, doi:10.21468/scipostphys.11.1.008.'
short: F. Brauneis, H.-W. Hammer, M. Lemeshko, A. Volosniev, SciPost Physics 11
(2021).
date_created: 2021-08-04T15:00:55Z
date_published: 2021-07-13T00:00:00Z
date_updated: 2025-05-14T10:51:56Z
day: '13'
ddc:
- '530'
department:
- _id: MiLe
doi: 10.21468/scipostphys.11.1.008
ec_funded: 1
external_id:
arxiv:
- '2101.10958'
isi:
- '000680039500013'
file:
- access_level: open_access
checksum: eaa847346b1a023d97bbb291779610ed
content_type: application/pdf
creator: asandaue
date_created: 2021-08-10T11:44:59Z
date_updated: 2021-08-10T11:44:59Z
file_id: '9875'
file_name: 2021_SciPostPhysics_Brauneis.pdf
file_size: 1085300
relation: main_file
success: 1
file_date_updated: 2021-08-10T11:44:59Z
has_accepted_license: '1'
intvolume: ' 11'
isi: 1
issue: '1'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
project:
- _id: 260C2330-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '754411'
name: ISTplus - Postdoctoral Fellowships
- _id: 2688CF98-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '801770'
name: 'Angulon: physics and applications of a new quasiparticle'
publication: SciPost Physics
publication_identifier:
eissn:
- 2542-4653
publication_status: published
publisher: SciPost Foundation
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Impurities in a one-dimensional Bose gas: The flow equation approach'
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: 11
year: '2021'
...
---
_id: '9770'
abstract:
- lang: eng
text: We study an effective one-dimensional quantum model that includes friction
and spin-orbit coupling (SOC), and show that the model exhibits spin polarization
when both terms are finite. Most important, strong spin polarization can be observed
even for moderate SOC, provided that the friction is strong. Our findings might
help to explain the pronounced effect of chirality on spin distribution and transport
in chiral molecules. In particular, our model implies static magnetic properties
of a chiral molecule, which lead to Shiba-like states when a molecule is placed
on a superconductor, in accordance with recent experimental data.
acknowledgement: "We thank Rafael Barfknecht for useful discussions. This work has
received funding from the European Union’s Horizon 2020 research and innovation
programme under the Marie Skłodowska-Curie Grant Agreement No. 754411 (A.G.\r\nand
A.G.V.). M.L. acknowledges support by the European Research Council (ERC) Starting
Grant No. 801770 (ANGULON). Y.P. and O.M. acknowledge funding from the Nidersachsen
Ministry of Science and Culture, and from the\r\nAcademia Sinica Research Program.
O.M. is thankful for support through the Harry de Jur Chair in Applied Science."
article_number: '024430'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Artem
full_name: Volosniev, Artem
id: 37D278BC-F248-11E8-B48F-1D18A9856A87
last_name: Volosniev
orcid: 0000-0003-0393-5525
- first_name: Hen
full_name: Alpern, Hen
last_name: Alpern
- first_name: Yossi
full_name: Paltiel, Yossi
last_name: Paltiel
- first_name: Oded
full_name: Millo, Oded
last_name: Millo
- first_name: Mikhail
full_name: Lemeshko, Mikhail
id: 37CB05FA-F248-11E8-B48F-1D18A9856A87
last_name: Lemeshko
orcid: 0000-0002-6990-7802
- first_name: Areg
full_name: Ghazaryan, Areg
id: 4AF46FD6-F248-11E8-B48F-1D18A9856A87
last_name: Ghazaryan
orcid: 0000-0001-9666-3543
citation:
ama: Volosniev A, Alpern H, Paltiel Y, Millo O, Lemeshko M, Ghazaryan A. Interplay
between friction and spin-orbit coupling as a source of spin polarization. Physical
Review B. 2021;104(2). doi:10.1103/physrevb.104.024430
apa: Volosniev, A., Alpern, H., Paltiel, Y., Millo, O., Lemeshko, M., & Ghazaryan,
A. (2021). Interplay between friction and spin-orbit coupling as a source of spin
polarization. Physical Review B. American Physical Society. https://doi.org/10.1103/physrevb.104.024430
chicago: Volosniev, Artem, Hen Alpern, Yossi Paltiel, Oded Millo, Mikhail Lemeshko,
and Areg Ghazaryan. “Interplay between Friction and Spin-Orbit Coupling as a Source
of Spin Polarization.” Physical Review B. American Physical Society, 2021.
https://doi.org/10.1103/physrevb.104.024430.
ieee: A. Volosniev, H. Alpern, Y. Paltiel, O. Millo, M. Lemeshko, and A. Ghazaryan,
“Interplay between friction and spin-orbit coupling as a source of spin polarization,”
Physical Review B, vol. 104, no. 2. American Physical Society, 2021.
ista: Volosniev A, Alpern H, Paltiel Y, Millo O, Lemeshko M, Ghazaryan A. 2021.
Interplay between friction and spin-orbit coupling as a source of spin polarization.
Physical Review B. 104(2), 024430.
mla: Volosniev, Artem, et al. “Interplay between Friction and Spin-Orbit Coupling
as a Source of Spin Polarization.” Physical Review B, vol. 104, no. 2,
024430, American Physical Society, 2021, doi:10.1103/physrevb.104.024430.
short: A. Volosniev, H. Alpern, Y. Paltiel, O. Millo, M. Lemeshko, A. Ghazaryan,
Physical Review B 104 (2021).
date_created: 2021-08-04T15:05:32Z
date_published: 2021-07-01T00:00:00Z
date_updated: 2025-04-14T07:43:49Z
day: '01'
department:
- _id: MiLe
doi: 10.1103/physrevb.104.024430
ec_funded: 1
external_id:
arxiv:
- '2101.05173'
isi:
- '000678780800003'
intvolume: ' 104'
isi: 1
issue: '2'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2101.05173
month: '07'
oa: 1
oa_version: Preprint
project:
- _id: 260C2330-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '754411'
name: ISTplus - Postdoctoral Fellowships
- _id: 2688CF98-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '801770'
name: 'Angulon: physics and applications of a new quasiparticle'
publication: Physical Review B
publication_identifier:
eissn:
- 2469-9969
issn:
- 2469-9950
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Interplay between friction and spin-orbit coupling as a source of spin polarization
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 104
year: '2021'
...
---
OA_place: publisher
OA_type: gold
_id: '9778'
abstract:
- lang: eng
text: The hippocampal mossy fiber synapse is a key synapse of the trisynaptic circuit.
Post-tetanic potentiation (PTP) is the most powerful form of plasticity at this
synaptic connection. It is widely believed that mossy fiber PTP is an entirely
presynaptic phenomenon, implying that PTP induction is input-specific, and requires
neither activity of multiple inputs nor stimulation of postsynaptic neurons. To
directly test cooperativity and associativity, we made paired recordings between
single mossy fiber terminals and postsynaptic CA3 pyramidal neurons in rat brain
slices. By stimulating non-overlapping mossy fiber inputs converging onto single
CA3 neurons, we confirm that PTP is input-specific and non-cooperative. Unexpectedly,
mossy fiber PTP exhibits anti-associative induction properties. EPSCs show only
minimal PTP after combined pre- and postsynaptic high-frequency stimulation with
intact postsynaptic Ca2+ signaling, but marked PTP in the absence of postsynaptic
spiking and after suppression of postsynaptic Ca2+ signaling (10 mM EGTA). PTP
is largely recovered by inhibitors of voltage-gated R- and L-type Ca2+ channels,
group II mGluRs, and vacuolar-type H+-ATPase, suggesting the involvement of retrograde
vesicular glutamate signaling. Transsynaptic regulation of PTP extends the repertoire
of synaptic computations, implementing a brake on mossy fiber detonation and a
“smart teacher” function of hippocampal mossy fiber synapses.
acknowledged_ssus:
- _id: SSU
acknowledgement: We thank Drs. Carolina Borges-Merjane and Jose Guzman for critically
reading the manuscript, and Pablo Castillo for discussions. We are grateful to Alois
Schlögl for help with analysis, Florian Marr for excellent technical assistance
and cell reconstruction, Christina Altmutter for technical help, Eleftheria Kralli-Beller
for manuscript editing, and the Scientific Service Units of IST Austria for support.
This project received funding from the European Research Council (ERC) under the
European Union’s Horizon 2020 research and innovation program (grant agreement No
692692) and the Fond zur Förderung der Wissenschaftlichen Forschung (Z 312-B27,
Wittgenstein award), both to P.J.
article_number: '2912'
article_processing_charge: Yes
article_type: original
author:
- first_name: David H
full_name: Vandael, David H
id: 3AE48E0A-F248-11E8-B48F-1D18A9856A87
last_name: Vandael
orcid: 0000-0001-7577-1676
- first_name: Yuji
full_name: Okamoto, Yuji
id: 3337E116-F248-11E8-B48F-1D18A9856A87
last_name: Okamoto
orcid: 0000-0003-0408-6094
- first_name: Peter M
full_name: Jonas, Peter M
id: 353C1B58-F248-11E8-B48F-1D18A9856A87
last_name: Jonas
orcid: 0000-0001-5001-4804
citation:
ama: Vandael DH, Okamoto Y, Jonas PM. Transsynaptic modulation of presynaptic short-term
plasticity in hippocampal mossy fiber synapses. Nature Communications.
2021;12(1). doi:10.1038/s41467-021-23153-5
apa: Vandael, D. H., Okamoto, Y., & Jonas, P. M. (2021). Transsynaptic modulation
of presynaptic short-term plasticity in hippocampal mossy fiber synapses. Nature
Communications. Springer. https://doi.org/10.1038/s41467-021-23153-5
chicago: Vandael, David H, Yuji Okamoto, and Peter M Jonas. “Transsynaptic Modulation
of Presynaptic Short-Term Plasticity in Hippocampal Mossy Fiber Synapses.” Nature
Communications. Springer, 2021. https://doi.org/10.1038/s41467-021-23153-5.
ieee: D. H. Vandael, Y. Okamoto, and P. M. Jonas, “Transsynaptic modulation of presynaptic
short-term plasticity in hippocampal mossy fiber synapses,” Nature Communications,
vol. 12, no. 1. Springer, 2021.
ista: Vandael DH, Okamoto Y, Jonas PM. 2021. Transsynaptic modulation of presynaptic
short-term plasticity in hippocampal mossy fiber synapses. Nature Communications.
12(1), 2912.
mla: Vandael, David H., et al. “Transsynaptic Modulation of Presynaptic Short-Term
Plasticity in Hippocampal Mossy Fiber Synapses.” Nature Communications,
vol. 12, no. 1, 2912, Springer, 2021, doi:10.1038/s41467-021-23153-5.
short: D.H. Vandael, Y. Okamoto, P.M. Jonas, Nature Communications 12 (2021).
corr_author: '1'
date_created: 2021-08-06T07:22:55Z
date_published: 2021-05-18T00:00:00Z
date_updated: 2025-06-12T06:28:45Z
day: '18'
ddc:
- '570'
department:
- _id: PeJo
doi: 10.1038/s41467-021-23153-5
ec_funded: 1
external_id:
isi:
- '000655481800014'
pmid:
- '34006874'
file:
- access_level: open_access
checksum: 6036a8cdae95e1707c2a04d54e325ff4
content_type: application/pdf
creator: kschuh
date_created: 2021-12-17T11:34:50Z
date_updated: 2021-12-17T11:34:50Z
file_id: '10563'
file_name: 2021_NatureCommunications_Vandael.pdf
file_size: 3108845
relation: main_file
success: 1
file_date_updated: 2021-12-17T11:34:50Z
has_accepted_license: '1'
intvolume: ' 12'
isi: 1
issue: '1'
keyword:
- general physics and astronomy
- general biochemistry
- genetics and molecular biology
- general chemistry
language:
- iso: eng
month: '05'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 25B7EB9E-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '692692'
name: Biophysics and circuit function of a giant cortical glutamatergic synapse
- _id: 25C5A090-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: Z00312
name: Synaptic communication in neuronal microcircuits
publication: Nature Communications
publication_identifier:
issn:
- 2041-1723
publication_status: published
publisher: Springer
quality_controlled: '1'
related_material:
link:
- description: News on IST Homepage
relation: press_release
url: https://ist.ac.at/en/news/synaptic-transmission-not-a-one-way-street/
scopus_import: '1'
status: public
title: Transsynaptic modulation of presynaptic short-term plasticity in hippocampal
mossy fiber synapses
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 12
year: '2021'
...
---
_id: '9793'
abstract:
- lang: eng
text: Astrocytes extensively infiltrate the neuropil to regulate critical aspects
of synaptic development and function. This process is regulated by transcellular
interactions between astrocytes and neurons via cell adhesion molecules. How astrocytes
coordinate developmental processes among one another to parse out the synaptic
neuropil and form non-overlapping territories is unknown. Here we identify a molecular
mechanism regulating astrocyte-astrocyte interactions during development to coordinate
astrocyte morphogenesis and gap junction coupling. We show that hepaCAM, a disease-linked,
astrocyte-enriched cell adhesion molecule, regulates astrocyte competition for
territory and morphological complexity in the developing mouse cortex. Furthermore,
conditional deletion of Hepacam from developing astrocytes significantly impairs
gap junction coupling between astrocytes and disrupts the balance between synaptic
excitation and inhibition. Mutations in HEPACAM cause megalencephalic leukoencephalopathy
with subcortical cysts in humans. Therefore, our findings suggest that disruption
of astrocyte self-organization mechanisms could be an underlying cause of neural
pathology.
acknowledgement: This work was supported by the National Institutes of Health (R01
DA047258 and R01 NS102237 to C.E., F32 NS100392 to K.T.B.) and the Holland-Trice
Brain Research Award (to C.E.). K.T.B. was supported by postdoctoral fellowships
from the Foerster-Bernstein Family and The Hartwell Foundation. The Hippenmeyer
lab was supported by the European Research Council (ERC) under the European Union’s
Horizon 2020 research and innovations program (725780 LinPro) to S.H. R.E. was supported
by Ministerio de Ciencia y Tecnología (RTI2018-093493-B-I00). We thank the Duke
Light Microscopy Core Facility, the Duke Transgenic Mouse Facility, Dr. U. Schulte
for assistance with proteomic experiments, and Dr. D. Silver for critical review
of the manuscript. Cartoon elements of figure panels were created using BioRender.com.
article_processing_charge: No
article_type: original
author:
- first_name: Katherine T.
full_name: Baldwin, Katherine T.
last_name: Baldwin
- first_name: Christabel X.
full_name: Tan, Christabel X.
last_name: Tan
- first_name: Samuel T.
full_name: Strader, Samuel T.
last_name: Strader
- first_name: Changyu
full_name: Jiang, Changyu
last_name: Jiang
- first_name: Justin T.
full_name: Savage, Justin T.
last_name: Savage
- first_name: Xabier
full_name: Elorza-Vidal, Xabier
last_name: Elorza-Vidal
- first_name: Ximena
full_name: Contreras, Ximena
id: 475990FE-F248-11E8-B48F-1D18A9856A87
last_name: Contreras
- first_name: Thomas
full_name: Rülicke, Thomas
last_name: Rülicke
- first_name: Simon
full_name: Hippenmeyer, Simon
id: 37B36620-F248-11E8-B48F-1D18A9856A87
last_name: Hippenmeyer
orcid: 0000-0003-2279-1061
- first_name: Raúl
full_name: Estévez, Raúl
last_name: Estévez
- first_name: Ru-Rong
full_name: Ji, Ru-Rong
last_name: Ji
- first_name: Cagla
full_name: Eroglu, Cagla
last_name: Eroglu
citation:
ama: Baldwin KT, Tan CX, Strader ST, et al. HepaCAM controls astrocyte self-organization
and coupling. Neuron. 2021;109(15):2427-2442.e10. doi:10.1016/j.neuron.2021.05.025
apa: Baldwin, K. T., Tan, C. X., Strader, S. T., Jiang, C., Savage, J. T., Elorza-Vidal,
X., … Eroglu, C. (2021). HepaCAM controls astrocyte self-organization and coupling.
Neuron. Elsevier. https://doi.org/10.1016/j.neuron.2021.05.025
chicago: Baldwin, Katherine T., Christabel X. Tan, Samuel T. Strader, Changyu Jiang,
Justin T. Savage, Xabier Elorza-Vidal, Ximena Contreras, et al. “HepaCAM Controls
Astrocyte Self-Organization and Coupling.” Neuron. Elsevier, 2021. https://doi.org/10.1016/j.neuron.2021.05.025.
ieee: K. T. Baldwin et al., “HepaCAM controls astrocyte self-organization
and coupling,” Neuron, vol. 109, no. 15. Elsevier, p. 2427–2442.e10, 2021.
ista: Baldwin KT, Tan CX, Strader ST, Jiang C, Savage JT, Elorza-Vidal X, Contreras
X, Rülicke T, Hippenmeyer S, Estévez R, Ji R-R, Eroglu C. 2021. HepaCAM controls
astrocyte self-organization and coupling. Neuron. 109(15), 2427–2442.e10.
mla: Baldwin, Katherine T., et al. “HepaCAM Controls Astrocyte Self-Organization
and Coupling.” Neuron, vol. 109, no. 15, Elsevier, 2021, p. 2427–2442.e10,
doi:10.1016/j.neuron.2021.05.025.
short: K.T. Baldwin, C.X. Tan, S.T. Strader, C. Jiang, J.T. Savage, X. Elorza-Vidal,
X. Contreras, T. Rülicke, S. Hippenmeyer, R. Estévez, R.-R. Ji, C. Eroglu, Neuron
109 (2021) 2427–2442.e10.
date_created: 2021-08-06T09:08:25Z
date_published: 2021-08-04T00:00:00Z
date_updated: 2025-04-14T07:43:03Z
day: '04'
department:
- _id: SiHi
doi: 10.1016/j.neuron.2021.05.025
ec_funded: 1
external_id:
isi:
- '000692851900010'
pmid:
- '34171291'
intvolume: ' 109'
isi: 1
issue: '15'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1016/j.neuron.2021.05.025
month: '08'
oa: 1
oa_version: Published Version
page: 2427-2442.e10
pmid: 1
project:
- _id: 260018B0-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '725780'
name: Principles of Neural Stem Cell Lineage Progression in Cerebral Cortex Development
publication: Neuron
publication_identifier:
eissn:
- 1097-4199
issn:
- 0896-6273
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: HepaCAM controls astrocyte self-organization and coupling
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 109
year: '2021'
...
---
_id: '9815'
abstract:
- lang: eng
text: The quantum bits (qubits) on which superconducting quantum computers are based
have energy scales corresponding to photons with GHz frequencies. The energy of
photons in the gigahertz domain is too low to allow transmission through the noisy
room-temperature environment, where the signal would be lost in thermal noise.
Optical photons, on the other hand, have much higher energies, and signals can
be detected using highly efficient single-photon detectors. Transduction from
microwave to optical frequencies is therefore a potential enabling technology
for quantum devices. However, in such a device the optical pump can be a source
of thermal noise and thus degrade the fidelity; the similarity of input microwave
state to the output optical state. In order to investigate the magnitude of this
effect we model the sub-Kelvin thermal behavior of an electro-optic transducer
based on a lithium niobate whispering gallery mode resonator. We find that there
is an optimum power level for a continuous pump, whilst pulsed operation of the
pump increases the fidelity of the conversion.
acknowledgement: NJL is supported by the MBIE Endeavour Fund (UOOX1805) and GL is
by the Julius von Haast Fellowship of New Zealand. SM acknowledges stimulating discussions
with T M Jensen.
article_number: '045005'
article_processing_charge: Yes
article_type: original
arxiv: 1
author:
- first_name: Sonia
full_name: Mobassem, Sonia
last_name: Mobassem
- first_name: Nicholas J.
full_name: Lambert, Nicholas J.
last_name: Lambert
- first_name: Alfredo R
full_name: Rueda Sanchez, Alfredo R
id: 3B82B0F8-F248-11E8-B48F-1D18A9856A87
last_name: Rueda Sanchez
orcid: 0000-0001-6249-5860
- first_name: Johannes M
full_name: Fink, Johannes M
id: 4B591CBA-F248-11E8-B48F-1D18A9856A87
last_name: Fink
orcid: 0000-0001-8112-028X
- first_name: Gerd
full_name: Leuchs, Gerd
last_name: Leuchs
- first_name: Harald G.L.
full_name: Schwefel, Harald G.L.
last_name: Schwefel
citation:
ama: Mobassem S, Lambert NJ, Rueda Sanchez AR, Fink JM, Leuchs G, Schwefel HGL.
Thermal noise in electro-optic devices at cryogenic temperatures. Quantum Science
and Technology. 2021;6(4). doi:10.1088/2058-9565/ac0f36
apa: Mobassem, S., Lambert, N. J., Rueda Sanchez, A. R., Fink, J. M., Leuchs, G.,
& Schwefel, H. G. L. (2021). Thermal noise in electro-optic devices at cryogenic
temperatures. Quantum Science and Technology. IOP Publishing. https://doi.org/10.1088/2058-9565/ac0f36
chicago: Mobassem, Sonia, Nicholas J. Lambert, Alfredo R Rueda Sanchez, Johannes
M Fink, Gerd Leuchs, and Harald G.L. Schwefel. “Thermal Noise in Electro-Optic
Devices at Cryogenic Temperatures.” Quantum Science and Technology. IOP
Publishing, 2021. https://doi.org/10.1088/2058-9565/ac0f36.
ieee: S. Mobassem, N. J. Lambert, A. R. Rueda Sanchez, J. M. Fink, G. Leuchs, and
H. G. L. Schwefel, “Thermal noise in electro-optic devices at cryogenic temperatures,”
Quantum Science and Technology, vol. 6, no. 4. IOP Publishing, 2021.
ista: Mobassem S, Lambert NJ, Rueda Sanchez AR, Fink JM, Leuchs G, Schwefel HGL.
2021. Thermal noise in electro-optic devices at cryogenic temperatures. Quantum
Science and Technology. 6(4), 045005.
mla: Mobassem, Sonia, et al. “Thermal Noise in Electro-Optic Devices at Cryogenic
Temperatures.” Quantum Science and Technology, vol. 6, no. 4, 045005, IOP
Publishing, 2021, doi:10.1088/2058-9565/ac0f36.
short: S. Mobassem, N.J. Lambert, A.R. Rueda Sanchez, J.M. Fink, G. Leuchs, H.G.L.
Schwefel, Quantum Science and Technology 6 (2021).
date_created: 2021-08-08T22:01:25Z
date_published: 2021-07-15T00:00:00Z
date_updated: 2023-10-17T12:54:54Z
day: '15'
ddc:
- '530'
department:
- _id: JoFi
doi: 10.1088/2058-9565/ac0f36
external_id:
arxiv:
- '2008.08764'
isi:
- '000673081500001'
file:
- access_level: open_access
checksum: b15c2c228487a75002c3b52d56f23d5c
content_type: application/pdf
creator: cchlebak
date_created: 2021-08-09T12:23:13Z
date_updated: 2021-08-09T12:23:13Z
file_id: '9836'
file_name: 2021_QuantumScienceTechnology_Mobassem.pdf
file_size: 2366118
relation: main_file
file_date_updated: 2021-08-09T12:23:13Z
has_accepted_license: '1'
intvolume: ' 6'
isi: 1
issue: '4'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
publication: Quantum Science and Technology
publication_identifier:
eissn:
- 2058-9565
publication_status: published
publisher: IOP Publishing
quality_controlled: '1'
scopus_import: '1'
status: public
title: Thermal noise in electro-optic devices at cryogenic temperatures
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: 6
year: '2021'
...
---
_id: '9816'
abstract:
- lang: eng
text: "Aims: Mass antigen testing programs have been challenged because of an alleged
insufficient specificity, leading to a large number of false positives. The objective
of this study is to derive a lower bound of the specificity of the SD Biosensor
Standard Q Ag-Test in large scale practical use.\r\nMethods: Based on county data
from the nationwide tests for SARS-CoV-2 in Slovakia between 31.10.–1.11. 2020
we calculate a lower confidence bound for the specificity. As positive test results
were not systematically verified by PCR tests, we base the lower bound on a worst
case assumption, assuming all positives to be false positives.\r\nResults: 3,625,332
persons from 79 counties were tested. The lowest positivity rate was observed
in the county of Rožňava where 100 out of 34307 (0.29%) tests were positive. This
implies a test specificity of at least 99.6% (97.5% one-sided lower confidence
bound, adjusted for multiplicity).\r\nConclusion: The obtained lower bound suggests
a higher specificity compared to earlier studies in spite of the underlying worst
case assumption and the application in a mass testing setting. The actual specificity
is expected to exceed 99.6% if the prevalence in the respective regions was non-negligible
at the time of testing. To our knowledge, this estimate constitutes the first
bound obtained from large scale practical use of an antigen test."
acknowledgement: We would like to thank Alfred Uhl, Richard Kollár and Katarína Bod’ová
for very helpful comments. We also thank Matej Mišík for discussion and information
regarding the Slovak testing data and Ag-Test used.
article_number: e0255267
article_processing_charge: Yes
article_type: original
author:
- first_name: Michal
full_name: Hledik, Michal
id: 4171253A-F248-11E8-B48F-1D18A9856A87
last_name: Hledik
- first_name: Jitka
full_name: Polechova, Jitka
id: 3BBFB084-F248-11E8-B48F-1D18A9856A87
last_name: Polechova
orcid: 0000-0003-0951-3112
- first_name: Mathias
full_name: Beiglböck, Mathias
last_name: Beiglböck
- first_name: Anna Nele
full_name: Herdina, Anna Nele
last_name: Herdina
- first_name: Robert
full_name: Strassl, Robert
last_name: Strassl
- first_name: Martin
full_name: Posch, Martin
last_name: Posch
citation:
ama: Hledik M, Polechova J, Beiglböck M, Herdina AN, Strassl R, Posch M. Analysis
of the specificity of a COVID-19 antigen test in the Slovak mass testing program.
PLoS ONE. 2021;16(7). doi:10.1371/journal.pone.0255267
apa: Hledik, M., Polechova, J., Beiglböck, M., Herdina, A. N., Strassl, R., &
Posch, M. (2021). Analysis of the specificity of a COVID-19 antigen test in the
Slovak mass testing program. PLoS ONE. Public Library of Science. https://doi.org/10.1371/journal.pone.0255267
chicago: Hledik, Michal, Jitka Polechova, Mathias Beiglböck, Anna Nele Herdina,
Robert Strassl, and Martin Posch. “Analysis of the Specificity of a COVID-19 Antigen
Test in the Slovak Mass Testing Program.” PLoS ONE. Public Library of Science,
2021. https://doi.org/10.1371/journal.pone.0255267.
ieee: M. Hledik, J. Polechova, M. Beiglböck, A. N. Herdina, R. Strassl, and M. Posch,
“Analysis of the specificity of a COVID-19 antigen test in the Slovak mass testing
program,” PLoS ONE, vol. 16, no. 7. Public Library of Science, 2021.
ista: Hledik M, Polechova J, Beiglböck M, Herdina AN, Strassl R, Posch M. 2021.
Analysis of the specificity of a COVID-19 antigen test in the Slovak mass testing
program. PLoS ONE. 16(7), e0255267.
mla: Hledik, Michal, et al. “Analysis of the Specificity of a COVID-19 Antigen Test
in the Slovak Mass Testing Program.” PLoS ONE, vol. 16, no. 7, e0255267,
Public Library of Science, 2021, doi:10.1371/journal.pone.0255267.
short: M. Hledik, J. Polechova, M. Beiglböck, A.N. Herdina, R. Strassl, M. Posch,
PLoS ONE 16 (2021).
date_created: 2021-08-08T22:01:26Z
date_published: 2021-07-29T00:00:00Z
date_updated: 2023-08-10T14:26:32Z
day: '29'
ddc:
- '610'
department:
- _id: NiBa
doi: 10.1371/journal.pone.0255267
external_id:
isi:
- '000685248200095'
pmid:
- '34324553'
file:
- access_level: open_access
checksum: ae4df60eb62f4491278588548d0c1f93
content_type: application/pdf
creator: asandaue
date_created: 2021-08-09T11:52:14Z
date_updated: 2021-08-09T11:52:14Z
file_id: '9835'
file_name: 2021_PLoSONE_Hledík.pdf
file_size: 773921
relation: main_file
success: 1
file_date_updated: 2021-08-09T11:52:14Z
has_accepted_license: '1'
intvolume: ' 16'
isi: 1
issue: '7'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
pmid: 1
publication: PLoS ONE
publication_identifier:
eissn:
- 1932-6203
publication_status: published
publisher: Public Library of Science
quality_controlled: '1'
scopus_import: '1'
status: public
title: Analysis of the specificity of a COVID-19 antigen test in the Slovak mass testing
program
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: 16
year: '2021'
...
---
_id: '6965'
abstract:
- lang: eng
text: The central object of investigation of this paper is the Hirzebruch class,
a deformation of the Todd class, given by Hirzebruch (for smooth varieties). The
generalization for singular varieties is due to Brasselet–Schürmann–Yokura. Following
the work of Weber, we investigate its equivariant version for (possibly singular)
toric varieties. The local decomposition of the Hirzebruch class to the fixed
points of the torus action and a formula for the local class in terms of the defining
fan are recalled. After this review part, we prove the positivity of local Hirzebruch
classes for all toric varieties, thus proving false the alleged counterexample
given by Weber.
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Kamil P
full_name: Rychlewicz, Kamil P
id: 85A07246-A8BF-11E9-B4FA-D9E3E5697425
last_name: Rychlewicz
citation:
ama: Rychlewicz KP. The positivity of local equivariant Hirzebruch class for toric
varieties. Bulletin of the London Mathematical Society. 2021;53(2):560-574.
doi:10.1112/blms.12442
apa: Rychlewicz, K. P. (2021). The positivity of local equivariant Hirzebruch class
for toric varieties. Bulletin of the London Mathematical Society. Wiley.
https://doi.org/10.1112/blms.12442
chicago: Rychlewicz, Kamil P. “The Positivity of Local Equivariant Hirzebruch Class
for Toric Varieties.” Bulletin of the London Mathematical Society. Wiley,
2021. https://doi.org/10.1112/blms.12442.
ieee: K. P. Rychlewicz, “The positivity of local equivariant Hirzebruch class for
toric varieties,” Bulletin of the London Mathematical Society, vol. 53,
no. 2. Wiley, pp. 560–574, 2021.
ista: Rychlewicz KP. 2021. The positivity of local equivariant Hirzebruch class
for toric varieties. Bulletin of the London Mathematical Society. 53(2), 560–574.
mla: Rychlewicz, Kamil P. “The Positivity of Local Equivariant Hirzebruch Class
for Toric Varieties.” Bulletin of the London Mathematical Society, vol.
53, no. 2, Wiley, 2021, pp. 560–74, doi:10.1112/blms.12442.
short: K.P. Rychlewicz, Bulletin of the London Mathematical Society 53 (2021) 560–574.
corr_author: '1'
date_created: 2019-10-24T08:04:09Z
date_published: 2021-04-01T00:00:00Z
date_updated: 2024-10-09T20:59:03Z
day: '01'
department:
- _id: TaHa
doi: 10.1112/blms.12442
external_id:
arxiv:
- '1910.10435'
isi:
- '000594805800001'
intvolume: ' 53'
isi: 1
issue: '2'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1910.10435
month: '04'
oa: 1
oa_version: Preprint
page: 560-574
publication: Bulletin of the London Mathematical Society
publication_identifier:
eissn:
- 1469-2120
issn:
- 0024-6093
publication_status: published
publisher: Wiley
quality_controlled: '1'
scopus_import: '1'
status: public
title: The positivity of local equivariant Hirzebruch class for toric varieties
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 53
year: '2021'
...
---
OA_place: publisher
OA_type: green
_id: '6995'
abstract:
- lang: eng
text: Human brain organoids represent a powerful tool for the study of human neurological
diseases particularly those that impact brain growth and structure. However, many
neurological diseases lack obvious anatomical abnormalities, yet significantly
impact neural network functions, raising the question of whether organoids possess
sufficient neural network architecture and complexity to model these conditions.
Here, we explore the network level functions of brain organoids using calcium
sensor imaging and extracellular recording approaches that together reveal the
existence of complex oscillatory network behaviors reminiscent of intact brain
preparations. We further demonstrate strikingly abnormal epileptiform network
activity in organoids derived from a Rett Syndrome patient despite only modest
anatomical differences from isogenically matched controls, and rescue with an
unconventional neuromodulatory drug Pifithrin-α. Together, these findings provide
an essential foundation for the utilization of human brain organoids to study
intact and disordered human brain network formation and illustrate their utility
in therapeutic discovery.
acknowledgement: We thank S. Butler, T. Carmichael and members of the laboratory of
B.G.N. for helpful discussions and comments on the manuscript; N. Vishlaghi and
F. Turcios-Hernandez for technical assistance, and J. Lee, S.-K. Lee, H. Shinagawa
and K. Yoshikawa for valuable reagents. We also thank the UCLA Eli and Edythe Broad
Stem Cell Research Center (BSCRC) and Intellectual and Developmental Disabilities
Research Center microscopy cores for access to imaging facilities. This work was
supported by grants from the California Institute for Regenerative Medicine (CIRM)
(DISC1-08819 to B.G.N.), the National Institute of Health (R01NS089817, R01DA051897
and P50HD103557 to B.G.N.; K08NS119747 to R.A.S.; K99HD096105 to M.W.; R01MH123922,
R01MH121521 and P50HD103557 to M.J.G.; R01GM099134 to K.P.; R01NS103788 to W.E.L.;
R01NS088571 to J.M.P.; R01NS030549 and R01AG050474 to I.M.), and research awards
from the UCLA Jonsson Comprehensive Cancer Center and BSCRC Ablon Scholars Program
(to B.G.N.), the BSCRC Innovation Program (to B.G.N., K.P. and W.E.L.), the UCLA
BSCRC Steffy Brain Aging Research Fund (to B.G.N. and W.E.L.) and the UCLA Clinical
and Translational Science Institute (to B.G.N.), Paul Allen Family Foundation Frontiers
Group (to K.P. and W.E.L.), the March of Dimes Foundation (to W.E.L.) and the Simons
Foundation Autism Research Initiative Bridge to Independence Program (to R.A.S.
and M.J.G.). R.A.S. was also supported by the UCLA/NINDS Translational Neuroscience
Training Grant (R25NS065723), a Research and Training Fellowship from the American
Epilepsy Society, a Taking Flight Award from CURE Epilepsy and a Clinician Scientist
training award from the UCLA BSCRC. J.E.B. was supported by the UCLA BSCRC Rose
Hills Foundation Graduate Scholarship Training Program. M.W. was supported by postdoctoral
training awards provided by the UCLA BSCRC and the Uehara Memorial Foundation. O.A.M.
and A.K. were supported in part by the UCLA-California State University Northridge
CIRM-Bridges training program (EDUC2-08411). We also acknowledge the support of
the IDDRC Cells, Circuits and Systems Analysis, Microscopy and Genetics and Genomics
Cores of the Semel Institute of Neuroscience at UCLA, which are supported by the
NICHD (U54HD087101 and P50HD10355701). We lastly acknowledge support from a Quantitative
and Computational Biosciences Collaboratory Postdoctoral Fellowship to S.M. and
the Quantitative and Computational Biosciences Collaboratory community, directed
by M. Pellegrini.
article_processing_charge: No
article_type: review
author:
- first_name: Ranmal A.
full_name: Samarasinghe, Ranmal A.
last_name: Samarasinghe
- first_name: Osvaldo
full_name: Miranda, Osvaldo
id: 862A3C56-A8BF-11E9-B4FA-D9E3E5697425
last_name: Miranda
orcid: 0000-0001-6618-6889
- first_name: Jessie E.
full_name: Buth, Jessie E.
last_name: Buth
- first_name: Simon
full_name: Mitchell, Simon
last_name: Mitchell
- first_name: Isabella
full_name: Ferando, Isabella
last_name: Ferando
- first_name: Momoko
full_name: Watanabe, Momoko
last_name: Watanabe
- first_name: Arinnae
full_name: Kurdian, Arinnae
last_name: Kurdian
- first_name: Peyman
full_name: Golshani, Peyman
last_name: Golshani
- first_name: Kathrin
full_name: Plath, Kathrin
last_name: Plath
- first_name: William E.
full_name: Lowry, William E.
last_name: Lowry
- first_name: Jack M.
full_name: Parent, Jack M.
last_name: Parent
- first_name: Istvan
full_name: Mody, Istvan
last_name: Mody
- first_name: Bennett G.
full_name: Novitch, Bennett G.
last_name: Novitch
citation:
ama: Samarasinghe RA, Miranda O, Buth JE, et al. Identification of neural oscillations
and epileptiform changes in human brain organoids. Nature Neuroscience.
2021;24:32. doi:10.1038/s41593-021-00906-5
apa: Samarasinghe, R. A., Miranda, O., Buth, J. E., Mitchell, S., Ferando, I., Watanabe,
M., … Novitch, B. G. (2021). Identification of neural oscillations and epileptiform
changes in human brain organoids. Nature Neuroscience. Springer Nature.
https://doi.org/10.1038/s41593-021-00906-5
chicago: Samarasinghe, Ranmal A., Osvaldo Miranda, Jessie E. Buth, Simon Mitchell,
Isabella Ferando, Momoko Watanabe, Arinnae Kurdian, et al. “Identification of
Neural Oscillations and Epileptiform Changes in Human Brain Organoids.” Nature
Neuroscience. Springer Nature, 2021. https://doi.org/10.1038/s41593-021-00906-5.
ieee: R. A. Samarasinghe et al., “Identification of neural oscillations and
epileptiform changes in human brain organoids,” Nature Neuroscience, vol.
24. Springer Nature, p. 32, 2021.
ista: Samarasinghe RA, Miranda O, Buth JE, Mitchell S, Ferando I, Watanabe M, Kurdian
A, Golshani P, Plath K, Lowry WE, Parent JM, Mody I, Novitch BG. 2021. Identification
of neural oscillations and epileptiform changes in human brain organoids. Nature
Neuroscience. 24, 32.
mla: Samarasinghe, Ranmal A., et al. “Identification of Neural Oscillations and
Epileptiform Changes in Human Brain Organoids.” Nature Neuroscience, vol.
24, Springer Nature, 2021, p. 32, doi:10.1038/s41593-021-00906-5.
short: R.A. Samarasinghe, O. Miranda, J.E. Buth, S. Mitchell, I. Ferando, M. Watanabe,
A. Kurdian, P. Golshani, K. Plath, W.E. Lowry, J.M. Parent, I. Mody, B.G. Novitch,
Nature Neuroscience 24 (2021) 32.
date_created: 2019-11-10T11:23:58Z
date_published: 2021-08-23T00:00:00Z
date_updated: 2025-07-09T09:00:12Z
day: '23'
department:
- _id: GradSch
- _id: SiHi
doi: 10.1038/s41593-021-00906-5
external_id:
isi:
- '000687516300001'
pmid:
- '34426698 '
intvolume: ' 24'
isi: 1
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1101/820183
month: '08'
oa: 1
oa_version: Preprint
page: '32'
pmid: 1
publication: Nature Neuroscience
publication_identifier:
eissn:
- 1546-1726
issn:
- 1097-6256
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Identification of neural oscillations and epileptiform changes in human brain
organoids
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 24
year: '2021'
...
---
_id: '7463'
abstract:
- lang: eng
text: Resting-state brain activity is characterized by the presence of neuronal
avalanches showing absence of characteristic size. Such evidence has been interpreted
in the context of criticality and associated with the normal functioning of the
brain. A distinctive attribute of systems at criticality is the presence of long-range
correlations. Thus, to verify the hypothesis that the brain operates close to
a critical point and consequently assess deviations from criticality for diagnostic
purposes, it is of primary importance to robustly and reliably characterize correlations
in resting-state brain activity. Recent works focused on the analysis of narrow-band
electroencephalography (EEG) and magnetoencephalography (MEG) signal amplitude
envelope, showing evidence of long-range temporal correlations (LRTC) in neural
oscillations. However, brain activity is a broadband phenomenon, and a significant
piece of information useful to precisely discriminate between normal (critical)
and pathological behavior (non-critical), may be encoded in the broadband spatio-temporal
cortical dynamics. Here we propose to characterize the temporal correlations in
the broadband brain activity through the lens of neuronal avalanches. To this
end, we consider resting-state EEG and long-term MEG recordings, extract the corresponding
neuronal avalanche sequences, and study their temporal correlations. We demonstrate
that the broadband resting-state brain activity consistently exhibits long-range
power-law correlations in both EEG and MEG recordings, with similar values of
the scaling exponents. Importantly, although we observe that the avalanche size
distribution depends on scale parameters, scaling exponents characterizing long-range
correlations are quite robust. In particular, they are independent of the temporal
binning (scale of analysis), indicating that our analysis captures intrinsic characteristics
of the underlying dynamics. Because neuronal avalanches constitute a fundamental
feature of neural systems with universal characteristics, the proposed approach
may serve as a general, systems- and experiment-independent procedure to infer
the existence of underlying long-range correlations in extended neural systems,
and identify pathological behaviors in the complex spatio-temporal interplay of
cortical rhythms.
acknowledgement: LdA would like to acknowledge the financial support from MIUR-PRIN2017
WZFTZP and VALERE:VAnviteLli pEr la RicErca 2019. FL acknowledges support from the
European Union’s Horizon 2020 research and innovation programme under the Marie
Sklodowska-Curie Grant Agreement No. 754411. HJH would like to thank the Agencies
CAPES and FUNCAP for financial support.
article_processing_charge: No
article_type: original
author:
- first_name: Fabrizio
full_name: Lombardi, Fabrizio
id: A057D288-3E88-11E9-986D-0CF4E5697425
last_name: Lombardi
orcid: 0000-0003-2623-5249
- first_name: Oren
full_name: Shriki, Oren
last_name: Shriki
- first_name: Hans J
full_name: Herrmann, Hans J
last_name: Herrmann
- first_name: Lucilla
full_name: de Arcangelis, Lucilla
last_name: de Arcangelis
citation:
ama: Lombardi F, Shriki O, Herrmann HJ, de Arcangelis L. Long-range temporal correlations
in the broadband resting state activity of the human brain revealed by neuronal
avalanches. Neurocomputing. 2021;461:657-666. doi:10.1016/j.neucom.2020.05.126
apa: Lombardi, F., Shriki, O., Herrmann, H. J., & de Arcangelis, L. (2021).
Long-range temporal correlations in the broadband resting state activity of the
human brain revealed by neuronal avalanches. Neurocomputing. Elsevier.
https://doi.org/10.1016/j.neucom.2020.05.126
chicago: Lombardi, Fabrizio, Oren Shriki, Hans J Herrmann, and Lucilla de Arcangelis.
“Long-Range Temporal Correlations in the Broadband Resting State Activity of the
Human Brain Revealed by Neuronal Avalanches.” Neurocomputing. Elsevier,
2021. https://doi.org/10.1016/j.neucom.2020.05.126.
ieee: F. Lombardi, O. Shriki, H. J. Herrmann, and L. de Arcangelis, “Long-range
temporal correlations in the broadband resting state activity of the human brain
revealed by neuronal avalanches,” Neurocomputing, vol. 461. Elsevier, pp.
657–666, 2021.
ista: Lombardi F, Shriki O, Herrmann HJ, de Arcangelis L. 2021. Long-range temporal
correlations in the broadband resting state activity of the human brain revealed
by neuronal avalanches. Neurocomputing. 461, 657–666.
mla: Lombardi, Fabrizio, et al. “Long-Range Temporal Correlations in the Broadband
Resting State Activity of the Human Brain Revealed by Neuronal Avalanches.” Neurocomputing,
vol. 461, Elsevier, 2021, pp. 657–66, doi:10.1016/j.neucom.2020.05.126.
short: F. Lombardi, O. Shriki, H.J. Herrmann, L. de Arcangelis, Neurocomputing 461
(2021) 657–666.
date_created: 2020-02-06T16:09:14Z
date_published: 2021-05-13T00:00:00Z
date_updated: 2025-04-14T07:44:02Z
day: '13'
department:
- _id: GaTk
doi: 10.1016/j.neucom.2020.05.126
ec_funded: 1
external_id:
isi:
- '000704086300015'
intvolume: ' 461'
isi: 1
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1101/2020.02.03.930966
month: '05'
oa: 1
oa_version: Preprint
page: 657-666
project:
- _id: 260C2330-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '754411'
name: ISTplus - Postdoctoral Fellowships
publication: Neurocomputing
publication_identifier:
eissn:
- 1872-8286
issn:
- 0925-2312
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: Long-range temporal correlations in the broadband resting state activity of
the human brain revealed by neuronal avalanches
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 461
year: '2021'
...
---
_id: '7551'
abstract:
- lang: eng
text: Novelty facilitates formation of memories. The detection of novelty and storage
of contextual memories are both mediated by the hippocampus, yet the mechanisms
that link these two functions remain to be defined. Dentate granule cells (GCs)
of the dorsal hippocampus fire upon novelty exposure forming engrams of contextual
memory. However, their key excitatory inputs from the entorhinal cortex are not
responsive to novelty and are insufficient to make dorsal GCs fire reliably. Here
we uncover a powerful glutamatergic pathway to dorsal GCs from ventral hippocampal
mossy cells (MCs) that relays novelty, and is necessary and sufficient for driving
dorsal GCs activation. Furthermore, manipulation of ventral MCs activity bidirectionally
regulates novelty-induced contextual memory acquisition. Our results show that
ventral MCs activity controls memory formation through an intra-hippocampal interaction
mechanism gated by novelty.
acknowledgement: We thank Peter Jonas and Peter Somogyi for critically reading the
manuscript, Satoshi Kida for helpful discussion, Taijia Makinen for providing the
Prox1-creERT2 mouse line, and Hiromu Yawo for the VAMP2-Venus construct. We also
thank Vivek Jayaraman, Ph.D.; Rex A. Kerr, Ph.D.; Douglas S. Kim, Ph.D.; Loren L.
Looger, Ph.D.; and Karel Svoboda, Ph.D. from the GENIE Project, Janelia Farm Research
Campus, Howard Hughes Medical Institute for the viral constructs used for GCaMP6s
expression. We also thank Jacqueline Montanaro, Vanessa Zheden, David Kleindienst,
and Laura Burnett for technical assistance, as well as Robert Beattie for imaging
assistance. This work was supported by a European Research Council Advanced Grant
694539 to R.S.
article_processing_charge: No
article_type: original
author:
- first_name: Felipe A
full_name: Fredes Tolorza, Felipe A
id: 384825DA-F248-11E8-B48F-1D18A9856A87
last_name: Fredes Tolorza
- first_name: Maria A
full_name: Silva Sifuentes, Maria A
id: 371B3D6E-F248-11E8-B48F-1D18A9856A87
last_name: Silva Sifuentes
- first_name: Peter
full_name: Koppensteiner, Peter
id: 3B8B25A8-F248-11E8-B48F-1D18A9856A87
last_name: Koppensteiner
orcid: 0000-0002-3509-1948
- first_name: Kenta
full_name: Kobayashi, Kenta
last_name: Kobayashi
- first_name: Maximilian A
full_name: Jösch, Maximilian A
id: 2BD278E6-F248-11E8-B48F-1D18A9856A87
last_name: Jösch
orcid: 0000-0002-3937-1330
- first_name: Ryuichi
full_name: Shigemoto, Ryuichi
id: 499F3ABC-F248-11E8-B48F-1D18A9856A87
last_name: Shigemoto
orcid: 0000-0001-8761-9444
citation:
ama: Fredes Tolorza FA, Silva Sifuentes MA, Koppensteiner P, Kobayashi K, Jösch
MA, Shigemoto R. Ventro-dorsal hippocampal pathway gates novelty-induced contextual
memory formation. Current Biology. 2021;31(1):P25-38.E5. doi:10.1016/j.cub.2020.09.074
apa: Fredes Tolorza, F. A., Silva Sifuentes, M. A., Koppensteiner, P., Kobayashi,
K., Jösch, M. A., & Shigemoto, R. (2021). Ventro-dorsal hippocampal pathway
gates novelty-induced contextual memory formation. Current Biology. Elsevier.
https://doi.org/10.1016/j.cub.2020.09.074
chicago: Fredes Tolorza, Felipe A, Maria A Silva Sifuentes, Peter Koppensteiner,
Kenta Kobayashi, Maximilian A Jösch, and Ryuichi Shigemoto. “Ventro-Dorsal Hippocampal
Pathway Gates Novelty-Induced Contextual Memory Formation.” Current Biology.
Elsevier, 2021. https://doi.org/10.1016/j.cub.2020.09.074.
ieee: F. A. Fredes Tolorza, M. A. Silva Sifuentes, P. Koppensteiner, K. Kobayashi,
M. A. Jösch, and R. Shigemoto, “Ventro-dorsal hippocampal pathway gates novelty-induced
contextual memory formation,” Current Biology, vol. 31, no. 1. Elsevier,
p. P25–38.E5, 2021.
ista: Fredes Tolorza FA, Silva Sifuentes MA, Koppensteiner P, Kobayashi K, Jösch
MA, Shigemoto R. 2021. Ventro-dorsal hippocampal pathway gates novelty-induced
contextual memory formation. Current Biology. 31(1), P25–38.E5.
mla: Fredes Tolorza, Felipe A., et al. “Ventro-Dorsal Hippocampal Pathway Gates
Novelty-Induced Contextual Memory Formation.” Current Biology, vol. 31,
no. 1, Elsevier, 2021, p. P25–38.E5, doi:10.1016/j.cub.2020.09.074.
short: F.A. Fredes Tolorza, M.A. Silva Sifuentes, P. Koppensteiner, K. Kobayashi,
M.A. Jösch, R. Shigemoto, Current Biology 31 (2021) P25–38.E5.
date_created: 2020-02-28T10:56:18Z
date_published: 2021-01-11T00:00:00Z
date_updated: 2025-06-12T06:54:22Z
day: '11'
ddc:
- '570'
department:
- _id: MaJö
- _id: RySh
doi: 10.1016/j.cub.2020.09.074
ec_funded: 1
external_id:
isi:
- '000614361000020'
pmid:
- '33065009'
file:
- access_level: open_access
checksum: b7b9c8bc84a08befce365c675229a7d1
content_type: application/pdf
creator: dernst
date_created: 2020-10-19T13:31:28Z
date_updated: 2020-10-19T13:31:28Z
file_id: '8678'
file_name: 2021_CurrentBiology_Fredes.pdf
file_size: 4915964
relation: main_file
success: 1
file_date_updated: 2020-10-19T13:31:28Z
has_accepted_license: '1'
intvolume: ' 31'
isi: 1
issue: '1'
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
page: P25-38.E5
pmid: 1
project:
- _id: 25CA28EA-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '694539'
name: 'In situ analysis of single channel subunit composition in neurons: physiological
implication in synaptic plasticity and behaviour'
publication: Current Biology
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/remembering-novelty/
scopus_import: '1'
status: public
title: Ventro-dorsal hippocampal pathway gates novelty-induced contextual memory formation
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: 31
year: '2021'
...