---
_id: '2035'
abstract:
- lang: eng
text: "Considering a continuous self-map and the induced endomorphism on homology,
we study the eigenvalues and eigenspaces of the latter. Taking a filtration of
representations, we define the persistence of the eigenspaces, effectively introducing
a hierarchical organization of the map. The algorithm that computes this information
for a finite sample is proved to be stable, and to give the correct answer for
a sufficiently dense sample. Results computed with an implementation of the algorithm
provide evidence of its practical utility.\r\n"
acknowledgement: This research is partially supported by the Toposys project FP7-ICT-318493-STREP,
by ESF under the ACAT Research Network Programme, by the Russian Government under
mega project 11.G34.31.0053, and by the Polish National Science Center under Grant
No. N201 419639.
article_processing_charge: No
author:
- first_name: Herbert
full_name: Edelsbrunner, Herbert
id: 3FB178DA-F248-11E8-B48F-1D18A9856A87
last_name: Edelsbrunner
orcid: 0000-0002-9823-6833
- first_name: Grzegorz
full_name: Jablonski, Grzegorz
id: 4483EF78-F248-11E8-B48F-1D18A9856A87
last_name: Jablonski
orcid: 0000-0002-3536-9866
- first_name: Marian
full_name: Mrozek, Marian
last_name: Mrozek
citation:
ama: Edelsbrunner H, Jablonski G, Mrozek M. The persistent homology of a self-map.
Foundations of Computational Mathematics. 2015;15(5):1213-1244. doi:10.1007/s10208-014-9223-y
apa: Edelsbrunner, H., Jablonski, G., & Mrozek, M. (2015). The persistent homology
of a self-map. Foundations of Computational Mathematics. Springer. https://doi.org/10.1007/s10208-014-9223-y
chicago: Edelsbrunner, Herbert, Grzegorz Jablonski, and Marian Mrozek. “The Persistent
Homology of a Self-Map.” Foundations of Computational Mathematics. Springer,
2015. https://doi.org/10.1007/s10208-014-9223-y.
ieee: H. Edelsbrunner, G. Jablonski, and M. Mrozek, “The persistent homology of
a self-map,” Foundations of Computational Mathematics, vol. 15, no. 5.
Springer, pp. 1213–1244, 2015.
ista: Edelsbrunner H, Jablonski G, Mrozek M. 2015. The persistent homology of a
self-map. Foundations of Computational Mathematics. 15(5), 1213–1244.
mla: Edelsbrunner, Herbert, et al. “The Persistent Homology of a Self-Map.” Foundations
of Computational Mathematics, vol. 15, no. 5, Springer, 2015, pp. 1213–44,
doi:10.1007/s10208-014-9223-y.
short: H. Edelsbrunner, G. Jablonski, M. Mrozek, Foundations of Computational Mathematics
15 (2015) 1213–1244.
date_created: 2018-12-11T11:55:20Z
date_published: 2015-10-01T00:00:00Z
date_updated: 2025-09-23T14:08:54Z
day: '01'
ddc:
- '000'
department:
- _id: HeEd
doi: 10.1007/s10208-014-9223-y
ec_funded: 1
external_id:
isi:
- '000360862900004'
file:
- access_level: open_access
checksum: 3566f3a8b0c1bc550e62914a88c584ff
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:08:10Z
date_updated: 2020-07-14T12:45:26Z
file_id: '4670'
file_name: IST-2016-486-v1+1_s10208-014-9223-y.pdf
file_size: 1317546
relation: main_file
file_date_updated: 2020-07-14T12:45:26Z
has_accepted_license: '1'
intvolume: ' 15'
isi: 1
issue: '5'
language:
- iso: eng
license: https://creativecommons.org/licenses/by/4.0/
month: '10'
oa: 1
oa_version: Published Version
page: 1213 - 1244
project:
- _id: 255D761E-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '318493'
name: Topological Complex Systems
publication: Foundations of Computational Mathematics
publication_status: published
publisher: Springer
publist_id: '5022'
pubrep_id: '486'
quality_controlled: '1'
scopus_import: '1'
status: public
title: The persistent homology of a self-map
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: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 15
year: '2015'
...
---
_id: '10748'
abstract:
- lang: eng
text: The study of fluxoid states and fluxoid dynamics in mesoscopic iron-based
superconducting rings is valuable for characterizing the basic properties of the
superconductor, and may also provide important insight into the superconducting
paring symmetry. We report the fabrications of micron-sized rings and disks from
thin films of Fe(Se, Te) grown by molecular beam epitaxy. In order to study fluxoid
states in rings we developed a custom-tailored version of magnetic force microscopy
(MFM). This technique has a number of qualitative advantages for working with
mesoscopic superconducting samples in comparison to the conventional MFM and other
imaging techniques. We observed metastable fluxoid states in rings of different
sizes. Thermally activated fluxoid dynamics of these states was studied and modeled.
In addition, we found different regimes of interaction between Fe(Se, Te) ring
and MFM tip which are explained. Possibilities of the existence of exotic vortex
states and proposals for experiments to test the symmetry of the superconducting
order parameter in iron based superconductors are analyzed.
alternative_title:
- Bulletin of the American Physical Society
article_number: G16.00009
article_processing_charge: No
author:
- first_name: Hryhoriy
full_name: Polshyn, Hryhoriy
id: edfc7cb1-526e-11ec-b05a-e6ecc27e4e48
last_name: Polshyn
orcid: 0000-0001-8223-8896
- first_name: Can
full_name: Zhang, Can
last_name: Zhang
- first_name: Tyler
full_name: Naibert, Tyler
last_name: Naibert
- first_name: James
full_name: Eckstein, James
last_name: Eckstein
- first_name: Raffi
full_name: Budakian, Raffi
last_name: Budakian
citation:
ama: 'Polshyn H, Zhang C, Naibert T, Eckstein J, Budakian R. Study of Fe (Se, Te)
micron-sized rings by magnetic force microscopy. In: APS March Meeting 2015.
Vol 60. American Physical Society; 2015.'
apa: 'Polshyn, H., Zhang, C., Naibert, T., Eckstein, J., & Budakian, R. (2015).
Study of Fe (Se, Te) micron-sized rings by magnetic force microscopy. In APS
March Meeting 2015 (Vol. 60). San Antonio, TX, United States: American Physical
Society.'
chicago: Polshyn, Hryhoriy, Can Zhang, Tyler Naibert, James Eckstein, and Raffi
Budakian. “Study of Fe (Se, Te) Micron-Sized Rings by Magnetic Force Microscopy.”
In APS March Meeting 2015, Vol. 60. American Physical Society, 2015.
ieee: H. Polshyn, C. Zhang, T. Naibert, J. Eckstein, and R. Budakian, “Study of
Fe (Se, Te) micron-sized rings by magnetic force microscopy,” in APS March
Meeting 2015, San Antonio, TX, United States, 2015, vol. 60, no. 1.
ista: 'Polshyn H, Zhang C, Naibert T, Eckstein J, Budakian R. 2015. Study of Fe
(Se, Te) micron-sized rings by magnetic force microscopy. APS March Meeting 2015.
APS: American Physical Society, Bulletin of the American Physical Society, vol.
60, G16.00009.'
mla: Polshyn, Hryhoriy, et al. “Study of Fe (Se, Te) Micron-Sized Rings by Magnetic
Force Microscopy.” APS March Meeting 2015, vol. 60, no. 1, G16.00009, American
Physical Society, 2015.
short: H. Polshyn, C. Zhang, T. Naibert, J. Eckstein, R. Budakian, in:, APS March
Meeting 2015, American Physical Society, 2015.
conference:
end_date: 2015-03-06
location: San Antonio, TX, United States
name: 'APS: American Physical Society'
start_date: 2015-03-02
date_created: 2022-02-08T10:17:09Z
date_published: 2015-03-01T00:00:00Z
date_updated: 2022-02-08T10:42:53Z
day: '01'
extern: '1'
intvolume: ' 60'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://meetings.aps.org/Meeting/MAR15/Event/238442
month: '03'
oa: 1
oa_version: Published Version
publication: APS March Meeting 2015
publication_identifier:
issn:
- 0003-0503
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
status: public
title: Study of Fe (Se, Te) micron-sized rings by magnetic force microscopy
type: conference
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
volume: 60
year: '2015'
...
---
_id: '10794'
abstract:
- lang: eng
text: Mathematical models are of fundamental importance in the understanding of
complex population dynamics. For instance, they can be used to predict the population
evolution starting from different initial conditions or to test how a system responds
to external perturbations. For this analysis to be meaningful in real applications,
however, it is of paramount importance to choose an appropriate model structure
and to infer the model parameters from measured data. While many parameter inference
methods are available for models based on deterministic ordinary differential
equations, the same does not hold for more detailed individual-based models. Here
we consider, in particular, stochastic models in which the time evolution of the
species abundances is described by a continuous-time Markov chain. These models
are governed by a master equation that is typically difficult to solve. Consequently,
traditional inference methods that rely on iterative evaluation of parameter likelihoods
are computationally intractable. The aim of this paper is to present recent advances
in parameter inference for continuous-time Markov chain models, based on a moment
closure approximation of the parameter likelihood, and to investigate how these
results can help in understanding, and ultimately controlling, complex systems
in ecology. Specifically, we illustrate through an agricultural pest case study
how parameters of a stochastic individual-based model can be identified from measured
data and how the resulting model can be used to solve an optimal control problem
in a stochastic setting. In particular, we show how the matter of determining
the optimal combination of two different pest control methods can be formulated
as a chance constrained optimization problem where the control action is modeled
as a state reset, leading to a hybrid system formulation.
acknowledgement: "The authors would like to acknowledge contributions from Baptiste
Mottet who performed preliminary analysis regarding parameter inference for the
considered case study in a student project (Mottet, 2014/2015).\r\nThe research
leading to these results has received funding from the People Programme (Marie Curie
Actions) of the European Union's Seventh Framework Programme (FP7/2007-2013) under
REA grant agreement No. [291734] and from SystemsX under the project SignalX."
article_number: '42'
article_processing_charge: No
article_type: original
author:
- first_name: Francesca
full_name: Parise, Francesca
last_name: Parise
- first_name: John
full_name: Lygeros, John
last_name: Lygeros
- first_name: Jakob
full_name: Ruess, Jakob
id: 4A245D00-F248-11E8-B48F-1D18A9856A87
last_name: Ruess
orcid: 0000-0003-1615-3282
citation:
ama: 'Parise F, Lygeros J, Ruess J. Bayesian inference for stochastic individual-based
models of ecological systems: a pest control simulation study. Frontiers in
Environmental Science. 2015;3. doi:10.3389/fenvs.2015.00042'
apa: 'Parise, F., Lygeros, J., & Ruess, J. (2015). Bayesian inference for stochastic
individual-based models of ecological systems: a pest control simulation study.
Frontiers in Environmental Science. Frontiers. https://doi.org/10.3389/fenvs.2015.00042'
chicago: 'Parise, Francesca, John Lygeros, and Jakob Ruess. “Bayesian Inference
for Stochastic Individual-Based Models of Ecological Systems: A Pest Control Simulation
Study.” Frontiers in Environmental Science. Frontiers, 2015. https://doi.org/10.3389/fenvs.2015.00042.'
ieee: 'F. Parise, J. Lygeros, and J. Ruess, “Bayesian inference for stochastic individual-based
models of ecological systems: a pest control simulation study,” Frontiers in
Environmental Science, vol. 3. Frontiers, 2015.'
ista: 'Parise F, Lygeros J, Ruess J. 2015. Bayesian inference for stochastic individual-based
models of ecological systems: a pest control simulation study. Frontiers in Environmental
Science. 3, 42.'
mla: 'Parise, Francesca, et al. “Bayesian Inference for Stochastic Individual-Based
Models of Ecological Systems: A Pest Control Simulation Study.” Frontiers in
Environmental Science, vol. 3, 42, Frontiers, 2015, doi:10.3389/fenvs.2015.00042.'
short: F. Parise, J. Lygeros, J. Ruess, Frontiers in Environmental Science 3 (2015).
corr_author: '1'
date_created: 2022-02-25T11:42:25Z
date_published: 2015-06-10T00:00:00Z
date_updated: 2025-04-15T06:50:01Z
day: '10'
ddc:
- '000'
- '570'
department:
- _id: ToHe
- _id: GaTk
doi: 10.3389/fenvs.2015.00042
ec_funded: 1
file:
- access_level: open_access
checksum: 26c222487564e1be02a11d688d6f769d
content_type: application/pdf
creator: dernst
date_created: 2022-02-25T11:55:26Z
date_updated: 2022-02-25T11:55:26Z
file_id: '10795'
file_name: 2015_FrontiersEnvironmScience_Parise.pdf
file_size: 1371201
relation: main_file
success: 1
file_date_updated: 2022-02-25T11:55:26Z
has_accepted_license: '1'
intvolume: ' 3'
keyword:
- General Environmental Science
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
project:
- _id: 25681D80-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '291734'
name: International IST Postdoc Fellowship Programme
publication: Frontiers in Environmental Science
publication_identifier:
issn:
- 2296-665X
publication_status: published
publisher: Frontiers
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Bayesian inference for stochastic individual-based models of ecological systems:
a pest control simulation study'
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: 3
year: '2015'
...
---
OA_place: publisher
OA_type: green
_id: '10796'
abstract:
- lang: eng
text: 'We consider concurrent mean-payoff games, a very well-studied class of two-player
(player 1 vs player 2) zero-sum games on finite-state graphs where every transition
is assigned a reward between 0 and 1, and the payoff function is the long-run
average of the rewards. The value is the maximal expected payoff that player 1
can guarantee against all strategies of player 2. We consider the computation
of the set of states with value 1 under finite-memory strategies for player 1,
and our main results for the problem are as follows: (1) we present a polynomial-time
algorithm; (2) we show that whenever there is a finite-memory strategy, there
is a stationary strategy that does not need memory at all; and (3) we present
an optimal bound (which is double exponential) on the patience of stationary strategies
(where patience of a distribution is the inverse of the smallest positive probability
and represents a complexity measure of a stationary strategy).'
acknowledgement: "The research was partly supported by FWF Grant No P 23499-N23, FWF
NFN Grant\r\nNo S11407-N23 (RiSE), ERC Start grant (279307: Graph Games), and Microsoft
faculty fellows award."
article_processing_charge: No
arxiv: 1
author:
- first_name: Krishnendu
full_name: Chatterjee, Krishnendu
id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
last_name: Chatterjee
orcid: 0000-0002-4561-241X
- first_name: Rasmus
full_name: Ibsen-Jensen, Rasmus
id: 3B699956-F248-11E8-B48F-1D18A9856A87
last_name: Ibsen-Jensen
orcid: 0000-0003-4783-0389
citation:
ama: 'Chatterjee K, Ibsen-Jensen R. The value 1 problem under finite-memory strategies
for concurrent mean-payoff games. In: Proceedings of the Twenty-Sixth Annual
ACM-SIAM Symposium on Discrete Algorithms. Vol 2015. SIAM; 2015:1018-1029.
doi:10.1137/1.9781611973730.69'
apa: 'Chatterjee, K., & Ibsen-Jensen, R. (2015). The value 1 problem under finite-memory
strategies for concurrent mean-payoff games. In Proceedings of the Twenty-Sixth
Annual ACM-SIAM Symposium on Discrete Algorithms (Vol. 2015, pp. 1018–1029).
San Diego, CA, United States: SIAM. https://doi.org/10.1137/1.9781611973730.69'
chicago: Chatterjee, Krishnendu, and Rasmus Ibsen-Jensen. “The Value 1 Problem under
Finite-Memory Strategies for Concurrent Mean-Payoff Games.” In Proceedings
of the Twenty-Sixth Annual ACM-SIAM Symposium on Discrete Algorithms, 2015:1018–29.
SIAM, 2015. https://doi.org/10.1137/1.9781611973730.69.
ieee: K. Chatterjee and R. Ibsen-Jensen, “The value 1 problem under finite-memory
strategies for concurrent mean-payoff games,” in Proceedings of the Twenty-Sixth
Annual ACM-SIAM Symposium on Discrete Algorithms, San Diego, CA, United States,
2015, vol. 2015, no. 1, pp. 1018–1029.
ista: 'Chatterjee K, Ibsen-Jensen R. 2015. The value 1 problem under finite-memory
strategies for concurrent mean-payoff games. Proceedings of the Twenty-Sixth Annual
ACM-SIAM Symposium on Discrete Algorithms. SODA: Symposium on Discrete Algorithms
vol. 2015, 1018–1029.'
mla: Chatterjee, Krishnendu, and Rasmus Ibsen-Jensen. “The Value 1 Problem under
Finite-Memory Strategies for Concurrent Mean-Payoff Games.” Proceedings of
the Twenty-Sixth Annual ACM-SIAM Symposium on Discrete Algorithms, vol. 2015,
no. 1, SIAM, 2015, pp. 1018–29, doi:10.1137/1.9781611973730.69.
short: K. Chatterjee, R. Ibsen-Jensen, in:, Proceedings of the Twenty-Sixth Annual
ACM-SIAM Symposium on Discrete Algorithms, SIAM, 2015, pp. 1018–1029.
conference:
end_date: 2015-01-06
location: San Diego, CA, United States
name: 'SODA: Symposium on Discrete Algorithms'
start_date: 2015-01-04
corr_author: '1'
date_created: 2022-02-25T12:18:43Z
date_published: 2015-01-01T00:00:00Z
date_updated: 2025-06-26T06:54:08Z
day: '01'
department:
- _id: KrCh
doi: 10.1137/1.9781611973730.69
ec_funded: 1
external_id:
arxiv:
- '1409.6690'
intvolume: ' 2015'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.48550/arXiv.1409.6690
month: '01'
oa: 1
oa_version: Preprint
page: 1018-1029
project:
- _id: 2584A770-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: P 23499-N23
name: Modern Graph Algorithmic Techniques in Formal Verification
- _id: 25863FF4-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: S11407
name: Game Theory
- _id: 2581B60A-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '279307'
name: 'Quantitative Graph Games: Theory and Applications'
- _id: 2587B514-B435-11E9-9278-68D0E5697425
name: Microsoft Research Faculty Fellowship
publication: Proceedings of the Twenty-Sixth Annual ACM-SIAM Symposium on Discrete
Algorithms
publication_identifier:
isbn:
- 978-161197374-7
publication_status: published
publisher: SIAM
quality_controlled: '1'
scopus_import: '1'
status: public
title: The value 1 problem under finite-memory strategies for concurrent mean-payoff
games
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 2015
year: '2015'
...
---
_id: '333'
abstract:
- lang: eng
text: 'We present a hybrid intercalation battery based on a sodium/magnesium (Na/Mg)
dual salt electrolyte, metallic magnesium anode, and a cathode based on FeS2 nanocrystals
(NCs). Compared to lithium or sodium, metallic magnesium anode is safer due to
dendrite-free electroplating and offers extremely high volumetric (3833 mAh cm-3)
and gravimetric capacities (2205 mAh g-1). Na-ion cathodes, FeS2 NCs in the present
study, may serve as attractive alternatives to Mg-ion cathodes due to the higher
voltage of operation and fast, highly reversible insertion of Na-ions. In this
proof-of-concept study, electrochemical cycling of the Na/Mg hybrid battery was
characterized by high rate capability, high Coulombic efficiency of 99.8%, and
high energy density. In particular, with an average discharge voltage of ∼1.1
V and a cathodic capacity of 189 mAh g-1 at a current of 200 mA g-1, the presented
Mg/FeS2 hybrid battery delivers energy densities of up to 210 Wh kg-1, comparable
to commercial Li-ion batteries and approximately twice as high as state-of-the-art
Mg-ion batteries based on Mo6S8 cathodes. Further significant gains in the energy
density are expected from the development of Na/Mg electrolytes with a broader
electrochemical stability window. Fully based on Earth-abundant elements, hybrid
Na-Mg batteries are highly promising for large-scale stationary energy storage. '
article_processing_charge: No
article_type: original
author:
- first_name: Marc
full_name: Walter, Marc
last_name: Walter
- first_name: Kostiantyn
full_name: Kravchyk, Kostiantyn
last_name: Kravchyk
- first_name: Maria
full_name: Ibáñez, Maria
id: 43C61214-F248-11E8-B48F-1D18A9856A87
last_name: Ibáñez
orcid: 0000-0001-5013-2843
- first_name: Maksym
full_name: Kovalenko, Maksym
last_name: Kovalenko
citation:
ama: Walter M, Kravchyk K, Ibáñez M, Kovalenko M. Efficient and inexpensive sodium
magnesium hybrid battery. Chemistry of Materials. 2015;27(21):7452-7458.
doi:10.1021/acs.chemmater.5b03531
apa: Walter, M., Kravchyk, K., Ibáñez, M., & Kovalenko, M. (2015). Efficient
and inexpensive sodium magnesium hybrid battery. Chemistry of Materials.
ACS. https://doi.org/10.1021/acs.chemmater.5b03531
chicago: Walter, Marc, Kostiantyn Kravchyk, Maria Ibáñez, and Maksym Kovalenko.
“Efficient and Inexpensive Sodium Magnesium Hybrid Battery.” Chemistry of Materials.
ACS, 2015. https://doi.org/10.1021/acs.chemmater.5b03531.
ieee: M. Walter, K. Kravchyk, M. Ibáñez, and M. Kovalenko, “Efficient and inexpensive
sodium magnesium hybrid battery,” Chemistry of Materials, vol. 27, no.
21. ACS, pp. 7452–7458, 2015.
ista: Walter M, Kravchyk K, Ibáñez M, Kovalenko M. 2015. Efficient and inexpensive
sodium magnesium hybrid battery. Chemistry of Materials. 27(21), 7452–7458.
mla: Walter, Marc, et al. “Efficient and Inexpensive Sodium Magnesium Hybrid Battery.”
Chemistry of Materials, vol. 27, no. 21, ACS, 2015, pp. 7452–58, doi:10.1021/acs.chemmater.5b03531.
short: M. Walter, K. Kravchyk, M. Ibáñez, M. Kovalenko, Chemistry of Materials 27
(2015) 7452–7458.
date_created: 2018-12-11T11:45:52Z
date_published: 2015-10-16T00:00:00Z
date_updated: 2021-01-12T07:42:42Z
day: '16'
doi: 10.1021/acs.chemmater.5b03531
extern: '1'
intvolume: ' 27'
issue: '21'
language:
- iso: eng
month: '10'
oa_version: None
page: 7452 - 7458
publication: Chemistry of Materials
publication_status: published
publisher: ACS
publist_id: '7507'
quality_controlled: '1'
status: public
title: Efficient and inexpensive sodium magnesium hybrid battery
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 27
year: '2015'
...
---
_id: '334'
abstract:
- lang: eng
text: A cation exchange-based route was used to produce Cu2ZnSnS4 (CZTS)-Ag2S nanoparticles
with controlled composition. We report a detailed study of the formation of such
CZTS-Ag2S nanoheterostructures and of their photocatalytic properties. When compared
to pure CZTS, the use of nanoscale p-n heterostructures as light absorbers for
photocatalytic water splitting provides superior photocurrents. We associate this
experimental fact to a higher separation efficiency of the photogenerated electron-hole
pairs. We believe this and other type-II nanoheterostructures will open the door
to the use of CZTS, with excellent light absorption properties and made of abundant
and environmental friendly elements, to the field of photocatalysis.
acknowledgement: This work was supported by the European Regional Development Funds,
the Framework 7 program under project SCALENANO (FP7-NMP-ENERGY-2011-284486), the
Spanish MINECO under Contract ENE2013-46624-C4-3-R and Fundamental Research Funds
for the Central Universities (2652015086). Authors acknowledge the funding from
Generalitat de Catalunya 2014 SGR 1638.
article_processing_charge: No
article_type: original
author:
- first_name: Xuelian
full_name: Yu, Xuelian
last_name: Yu
- first_name: Jingjing
full_name: Liu, Jingjing
last_name: Liu
- first_name: Aziz
full_name: Genç, Aziz
last_name: Genç
- first_name: Maria
full_name: Ibáñez, Maria
id: 43C61214-F248-11E8-B48F-1D18A9856A87
last_name: Ibáñez
orcid: 0000-0001-5013-2843
- first_name: Zhishan
full_name: Luo, Zhishan
last_name: Luo
- first_name: Alexey
full_name: Shavel, Alexey
last_name: Shavel
- first_name: Jordi
full_name: Arbiol, Jordi
last_name: Arbiol
- first_name: Guangjin
full_name: Zhang, Guangjin
last_name: Zhang
- first_name: Yihe
full_name: Zhang, Yihe
last_name: Zhang
- first_name: Andreu
full_name: Cabot, Andreu
last_name: Cabot
citation:
ama: Yu X, Liu J, Genç A, et al. Cu2ZnSnS4–Ag2S Nanoscale p–n heterostructures as
sensitizers for photoelectrochemical water splitting. Langmuir. 2015;31(38):10555-10561.
doi:10.1021/acs.langmuir.5b02490
apa: Yu, X., Liu, J., Genç, A., Ibáñez, M., Luo, Z., Shavel, A., … Cabot, A. (2015).
Cu2ZnSnS4–Ag2S Nanoscale p–n heterostructures as sensitizers for photoelectrochemical
water splitting. Langmuir. American Chemical Society. https://doi.org/10.1021/acs.langmuir.5b02490
chicago: Yu, Xuelian, Jingjing Liu, Aziz Genç, Maria Ibáñez, Zhishan Luo, Alexey
Shavel, Jordi Arbiol, Guangjin Zhang, Yihe Zhang, and Andreu Cabot. “Cu2ZnSnS4–Ag2S
Nanoscale p–n Heterostructures as Sensitizers for Photoelectrochemical Water Splitting.”
Langmuir. American Chemical Society, 2015. https://doi.org/10.1021/acs.langmuir.5b02490.
ieee: X. Yu et al., “Cu2ZnSnS4–Ag2S Nanoscale p–n heterostructures as sensitizers
for photoelectrochemical water splitting,” Langmuir, vol. 31, no. 38. American
Chemical Society, pp. 10555–10561, 2015.
ista: Yu X, Liu J, Genç A, Ibáñez M, Luo Z, Shavel A, Arbiol J, Zhang G, Zhang Y,
Cabot A. 2015. Cu2ZnSnS4–Ag2S Nanoscale p–n heterostructures as sensitizers for
photoelectrochemical water splitting. Langmuir. 31(38), 10555–10561.
mla: Yu, Xuelian, et al. “Cu2ZnSnS4–Ag2S Nanoscale p–n Heterostructures as Sensitizers
for Photoelectrochemical Water Splitting.” Langmuir, vol. 31, no. 38, American
Chemical Society, 2015, pp. 10555–61, doi:10.1021/acs.langmuir.5b02490.
short: X. Yu, J. Liu, A. Genç, M. Ibáñez, Z. Luo, A. Shavel, J. Arbiol, G. Zhang,
Y. Zhang, A. Cabot, Langmuir 31 (2015) 10555–10561.
date_created: 2018-12-11T11:45:52Z
date_published: 2015-09-07T00:00:00Z
date_updated: 2021-01-12T07:42:46Z
day: '07'
doi: 10.1021/acs.langmuir.5b02490
extern: '1'
intvolume: ' 31'
issue: '38'
language:
- iso: eng
month: '09'
oa_version: None
page: 10555 - 10561
publication: Langmuir
publication_status: published
publisher: American Chemical Society
publist_id: '7508'
quality_controlled: '1'
status: public
title: Cu2ZnSnS4–Ag2S Nanoscale p–n heterostructures as sensitizers for photoelectrochemical
water splitting
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 31
year: '2015'
...
---
_id: '354'
abstract:
- lang: eng
text: 'A simple and effective method to introduce precise amounts of doping in nanomaterials
produced from the bottom-up assembly of colloidal nanoparticles (NPs) is described.
The procedure takes advantage of a ligand displacement step to incorporate controlled
concentrations of halide ions while removing carboxylic acids from the NP surface.
Upon consolidation of the NPs into dense pellets, halide ions diffuse within the
crystal structure, doping the anion sublattice and achieving n-type electrical
doping. Through the characterization of the thermoelectric properties of nanocrystalline
PbS, we demonstrate this strategy to be effective to control charge transport
properties on thermoelectric nanomaterials assembled from NP building blocks.
This approach is subsequently extended to PbTexSe1-x@PbS core-shell NPs, where
a significant enhancement of the thermoelectric figure of merit is achieved. '
acknowledgement: At IREC, work was supported by European Regional Development Funds
and the Framework 7 program under project UNION (FP7-NMP 310250). M.I. and S.O.
thank AGAUR for their Beatriu i Pinós postdoctoral grant and the PhD grant, respectively.
At Northwestern, work was supported by the Revolutionary Materials for Solid State
Energy Conversion, an Energy Frontier Research Center funded by the U.S. Department
of Energy, Office of Science, and Office of Basic Energy Sciences under Award Number
DE-SC0001054.
article_processing_charge: No
article_type: original
author:
- first_name: Maria
full_name: Ibáñez, Maria
id: 43C61214-F248-11E8-B48F-1D18A9856A87
last_name: Ibáñez
orcid: 0000-0001-5013-2843
- first_name: Rachel
full_name: Korkosz, Rachel
last_name: Korkosz
- first_name: Zhishan
full_name: Luo, Zhishan
last_name: Luo
- first_name: Pau
full_name: Riba, Pau
last_name: Riba
- first_name: Doris
full_name: Cadavid, Doris
last_name: Cadavid
- first_name: Silvia
full_name: Ortega, Silvia
last_name: Ortega
- first_name: Andreu
full_name: Cabot, Andreu
last_name: Cabot
- first_name: Mercouri
full_name: Kanatzidis, Mercouri
last_name: Kanatzidis
citation:
ama: Ibáñez M, Korkosz R, Luo Z, et al. Electron doping in bottom up engineered
thermoelectric nanomaterials through HCl mediated ligand displacement. Journal
of the American Chemical Society. 2015;137(12):4046-4049. doi:10.1021/jacs.5b00091
apa: Ibáñez, M., Korkosz, R., Luo, Z., Riba, P., Cadavid, D., Ortega, S., … Kanatzidis,
M. (2015). Electron doping in bottom up engineered thermoelectric nanomaterials
through HCl mediated ligand displacement. Journal of the American Chemical
Society. American Chemical Society. https://doi.org/10.1021/jacs.5b00091
chicago: Ibáñez, Maria, Rachel Korkosz, Zhishan Luo, Pau Riba, Doris Cadavid, Silvia
Ortega, Andreu Cabot, and Mercouri Kanatzidis. “Electron Doping in Bottom up Engineered
Thermoelectric Nanomaterials through HCl Mediated Ligand Displacement.” Journal
of the American Chemical Society. American Chemical Society, 2015. https://doi.org/10.1021/jacs.5b00091.
ieee: M. Ibáñez et al., “Electron doping in bottom up engineered thermoelectric
nanomaterials through HCl mediated ligand displacement,” Journal of the American
Chemical Society, vol. 137, no. 12. American Chemical Society, pp. 4046–4049,
2015.
ista: Ibáñez M, Korkosz R, Luo Z, Riba P, Cadavid D, Ortega S, Cabot A, Kanatzidis
M. 2015. Electron doping in bottom up engineered thermoelectric nanomaterials
through HCl mediated ligand displacement. Journal of the American Chemical Society.
137(12), 4046–4049.
mla: Ibáñez, Maria, et al. “Electron Doping in Bottom up Engineered Thermoelectric
Nanomaterials through HCl Mediated Ligand Displacement.” Journal of the American
Chemical Society, vol. 137, no. 12, American Chemical Society, 2015, pp. 4046–49,
doi:10.1021/jacs.5b00091.
short: M. Ibáñez, R. Korkosz, Z. Luo, P. Riba, D. Cadavid, S. Ortega, A. Cabot,
M. Kanatzidis, Journal of the American Chemical Society 137 (2015) 4046–4049.
date_created: 2018-12-11T11:45:59Z
date_published: 2015-03-11T00:00:00Z
date_updated: 2021-01-12T07:44:10Z
day: '11'
doi: 10.1021/jacs.5b00091
extern: '1'
intvolume: ' 137'
issue: '12'
language:
- iso: eng
month: '03'
oa_version: None
page: 4046 - 4049
publication: Journal of the American Chemical Society
publication_status: published
publisher: American Chemical Society
publist_id: '7470'
quality_controlled: '1'
status: public
title: Electron doping in bottom up engineered thermoelectric nanomaterials through
HCl mediated ligand displacement
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 137
year: '2015'
...
---
_id: '361'
abstract:
- lang: eng
text: We report the synthesis and photocatalytic and magnetic characterization of
colloidal nanoheterostructures formed by combining a Pt-based magnetic metal alloy
(PtCo, PtNi) with Cu2ZnSnS4 (CZTS). While CZTS is one of the main candidate materials
for solar energy conversion, the introduction of a Pt-based alloy on its surface
strongly influences its chemical and electronic properties, ultimately determining
its functionality. In this regard, up to a 15-fold increase of the photocatalytic
hydrogen evolution activity was obtained with CZTS–PtCo when compared with CZTS.
Furthermore, two times higher hydrogen evolution rates were obtained for CZTS–PtCo
when compared with CZTS–Pt, in spite of the lower precious metal loading of the
former. Besides, the magnetic properties of the PtCo nanoparticles attached to
the CZTS nanocrystals were retained in the heterostructures, which could facilitate
catalyst purification and recovery for its posterior recycling and/or reutilization.
acknowledgement: This work was supported by the National Natural Science Foundation
of China (Grant 21401212), Fundamental Research Funds for the Central Universities
(2652015086), the Framework 7 program under project SCALENANO (FP7-NMP-ENERGY-2011-284486),
and the MICINN project ENE2013-46624-C4-3-R. Authors acknowledge the funding from
Generalitat de Catalunya 2014 SGR 1638.
article_processing_charge: No
author:
- first_name: Xuelian
full_name: Yu, Xuelian
last_name: Yu
- first_name: Xiaoqiang
full_name: An, Xiaoqiang
last_name: An
- first_name: Aziz
full_name: Genç, Aziz
last_name: Genç
- first_name: Maria
full_name: Ibáñez, Maria
id: 43C61214-F248-11E8-B48F-1D18A9856A87
last_name: Ibáñez
orcid: 0000-0001-5013-2843
- first_name: Jordi
full_name: Arbiol, Jordi
last_name: Arbiol
- first_name: Yihe
full_name: Zhang, Yihe
last_name: Zhang
- first_name: Andreu
full_name: Cabot, Andreu
last_name: Cabot
citation:
ama: Yu X, An X, Genç A, et al. Cu2ZnSnS4–PtM (M = Co, Ni) nanoheterostructures
for photocatalytic hydrogen evolution. Journal of Physical Chemistry C.
2015;119(38):21882-21888. doi:10.1021/acs.jpcc.5b06199
apa: Yu, X., An, X., Genç, A., Ibáñez, M., Arbiol, J., Zhang, Y., & Cabot, A.
(2015). Cu2ZnSnS4–PtM (M = Co, Ni) nanoheterostructures for photocatalytic hydrogen
evolution. Journal of Physical Chemistry C. American Chemical Society.
https://doi.org/10.1021/acs.jpcc.5b06199
chicago: Yu, Xuelian, Xiaoqiang An, Aziz Genç, Maria Ibáñez, Jordi Arbiol, Yihe
Zhang, and Andreu Cabot. “Cu2ZnSnS4–PtM (M = Co, Ni) Nanoheterostructures for
Photocatalytic Hydrogen Evolution.” Journal of Physical Chemistry C. American
Chemical Society, 2015. https://doi.org/10.1021/acs.jpcc.5b06199.
ieee: X. Yu et al., “Cu2ZnSnS4–PtM (M = Co, Ni) nanoheterostructures for
photocatalytic hydrogen evolution,” Journal of Physical Chemistry C, vol.
119, no. 38. American Chemical Society, pp. 21882–21888, 2015.
ista: Yu X, An X, Genç A, Ibáñez M, Arbiol J, Zhang Y, Cabot A. 2015. Cu2ZnSnS4–PtM
(M = Co, Ni) nanoheterostructures for photocatalytic hydrogen evolution. Journal
of Physical Chemistry C. 119(38), 21882–21888.
mla: Yu, Xuelian, et al. “Cu2ZnSnS4–PtM (M = Co, Ni) Nanoheterostructures for Photocatalytic
Hydrogen Evolution.” Journal of Physical Chemistry C, vol. 119, no. 38,
American Chemical Society, 2015, pp. 21882–88, doi:10.1021/acs.jpcc.5b06199.
short: X. Yu, X. An, A. Genç, M. Ibáñez, J. Arbiol, Y. Zhang, A. Cabot, Journal
of Physical Chemistry C 119 (2015) 21882–21888.
date_created: 2018-12-11T11:46:01Z
date_published: 2015-08-26T00:00:00Z
date_updated: 2021-01-12T07:44:38Z
day: '26'
doi: 10.1021/acs.jpcc.5b06199
extern: '1'
intvolume: ' 119'
issue: '38'
language:
- iso: eng
month: '08'
oa_version: None
page: 21882 - 21888
publication: Journal of Physical Chemistry C
publication_status: published
publisher: American Chemical Society
publist_id: '7468'
status: public
title: Cu2ZnSnS4–PtM (M = Co, Ni) nanoheterostructures for photocatalytic hydrogen
evolution
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 119
year: '2015'
...
---
OA_type: closed access
_id: '362'
abstract:
- lang: eng
text: 'Monodisperse Pd2Sn nanorods with tuned size and aspect ratio were prepared
by co-reduction of metal salts in the presence of trioctylphosphine, amine, and
chloride ions. Asymmetric Pd2Sn nanostructures were achieved by the selective
desorption of a surfactant mediated by chlorine ions. A preliminary evaluation
of the geometry influence on catalytic properties evidenced Pd2Sn nanorods to
have improved catalytic performance. In view of these results, Pd2Sn nanorods
were also evaluated for water denitration. '
article_processing_charge: No
article_type: original
author:
- first_name: Zhishan
full_name: Lu, Zhishan
last_name: Lu
- first_name: Maria
full_name: Ibáñez, Maria
id: 43C61214-F248-11E8-B48F-1D18A9856A87
last_name: Ibáñez
orcid: 0000-0001-5013-2843
- first_name: Ana
full_name: Antolín, Ana
last_name: Antolín
- first_name: Aziz
full_name: Genç, Aziz
last_name: Genç
- first_name: Alexey
full_name: Shavel, Alexey
last_name: Shavel
- first_name: Sandra
full_name: Contreras, Sandra
last_name: Contreras
- first_name: Francesc
full_name: Medina, Francesc
last_name: Medina
- first_name: Jordi
full_name: Arbiol, Jordi
last_name: Arbiol
- first_name: Andreu
full_name: Cabot, Andreu
last_name: Cabot
citation:
ama: Lu Z, Ibáñez M, Antolín A, et al. Size and aspect ratio control of Pd inf 2
inf Sn nanorods and their water denitration properties. Langmuir. 2015;31(13):3952-3957.
doi:10.1021/la504906q
apa: Lu, Z., Ibáñez, M., Antolín, A., Genç, A., Shavel, A., Contreras, S., … Cabot,
A. (2015). Size and aspect ratio control of Pd inf 2 inf Sn nanorods and their
water denitration properties. Langmuir. American Chemical Society. https://doi.org/10.1021/la504906q
chicago: Lu, Zhishan, Maria Ibáñez, Ana Antolín, Aziz Genç, Alexey Shavel, Sandra
Contreras, Francesc Medina, Jordi Arbiol, and Andreu Cabot. “Size and Aspect Ratio
Control of Pd Inf 2 Inf Sn Nanorods and Their Water Denitration Properties.” Langmuir.
American Chemical Society, 2015. https://doi.org/10.1021/la504906q.
ieee: Z. Lu et al., “Size and aspect ratio control of Pd inf 2 inf Sn nanorods
and their water denitration properties,” Langmuir, vol. 31, no. 13. American
Chemical Society, pp. 3952–3957, 2015.
ista: Lu Z, Ibáñez M, Antolín A, Genç A, Shavel A, Contreras S, Medina F, Arbiol
J, Cabot A. 2015. Size and aspect ratio control of Pd inf 2 inf Sn nanorods and
their water denitration properties. Langmuir. 31(13), 3952–3957.
mla: Lu, Zhishan, et al. “Size and Aspect Ratio Control of Pd Inf 2 Inf Sn Nanorods
and Their Water Denitration Properties.” Langmuir, vol. 31, no. 13, American
Chemical Society, 2015, pp. 3952–57, doi:10.1021/la504906q.
short: Z. Lu, M. Ibáñez, A. Antolín, A. Genç, A. Shavel, S. Contreras, F. Medina,
J. Arbiol, A. Cabot, Langmuir 31 (2015) 3952–3957.
date_created: 2018-12-11T11:46:02Z
date_published: 2015-04-07T00:00:00Z
date_updated: 2026-05-19T08:52:57Z
day: '07'
doi: 10.1021/la504906q
extern: '1'
external_id:
pmid:
- '25751745'
intvolume: ' 31'
issue: '13'
language:
- iso: eng
month: '04'
oa_version: None
page: 3952 - 3957
pmid: 1
publication: Langmuir
publication_identifier:
eissn:
- 1520-5827
issn:
- 0743-7463
publication_status: published
publisher: American Chemical Society
publist_id: '7469'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Size and aspect ratio control of Pd inf 2 inf Sn nanorods and their water denitration
properties
type: journal_article
user_id: ba8df636-2132-11f1-aed0-ed93e2281fdd
volume: 31
year: '2015'
...
---
_id: '388'
abstract:
- lang: eng
text: We use ultrafast optical spectroscopy to observe binding of charged single-particle
excitations (SE) in the magnetically frustrated Mott insulator Na2IrO3. Above
the antiferromagnetic ordering temperature (TN) the system response is due to
both Hubbard excitons (HE) and their constituent unpaired SE. The SE response
becomes strongly suppressed immediately below TN. We argue that this increase
in binding energy is due to a unique interplay between the frustrated Kitaev and
the weak Heisenberg-type ordering term in the Hamiltonian, mediating an effective
interaction between the spin-singlet SE. This interaction grows with distance
causing the SE to become trapped in the HE, similar to quark confinement inside
hadrons. This binding of charged particles, induced by magnetic ordering, is a
result of a confinement-deconfinement transition of spin excitations. This observation
provides evidence for spin liquid type behavior which is expected in Na2IrO3.
article_processing_charge: No
article_type: original
author:
- first_name: Zhanybek
full_name: Alpichshev, Zhanybek
id: 45E67A2A-F248-11E8-B48F-1D18A9856A87
last_name: Alpichshev
orcid: 0000-0002-7183-5203
- first_name: Fahad
full_name: Mahmood, Fahad
last_name: Mahmood
- first_name: Gang
full_name: Cao, Gang
last_name: Cao
- first_name: Nuh
full_name: Gedik, Nuh
last_name: Gedik
citation:
ama: Alpichshev Z, Mahmood F, Cao G, Gedik N. Confinement deconfinement transition
as an indication of spin liquid type behavior in Na2IrO3. Physical Review Letters.
2015;114(1). doi:10.1103/PhysRevLett.114.017203
apa: Alpichshev, Z., Mahmood, F., Cao, G., & Gedik, N. (2015). Confinement deconfinement
transition as an indication of spin liquid type behavior in Na2IrO3. Physical
Review Letters. American Physical Society. https://doi.org/10.1103/PhysRevLett.114.017203
chicago: Alpichshev, Zhanybek, Fahad Mahmood, Gang Cao, and Nuh Gedik. “Confinement
Deconfinement Transition as an Indication of Spin Liquid Type Behavior in Na2IrO3.”
Physical Review Letters. American Physical Society, 2015. https://doi.org/10.1103/PhysRevLett.114.017203.
ieee: Z. Alpichshev, F. Mahmood, G. Cao, and N. Gedik, “Confinement deconfinement
transition as an indication of spin liquid type behavior in Na2IrO3,” Physical
Review Letters, vol. 114, no. 1. American Physical Society, 2015.
ista: Alpichshev Z, Mahmood F, Cao G, Gedik N. 2015. Confinement deconfinement transition
as an indication of spin liquid type behavior in Na2IrO3. Physical Review Letters.
114(1).
mla: Alpichshev, Zhanybek, et al. “Confinement Deconfinement Transition as an Indication
of Spin Liquid Type Behavior in Na2IrO3.” Physical Review Letters, vol.
114, no. 1, American Physical Society, 2015, doi:10.1103/PhysRevLett.114.017203.
short: Z. Alpichshev, F. Mahmood, G. Cao, N. Gedik, Physical Review Letters 114
(2015).
date_created: 2018-12-11T11:46:11Z
date_published: 2015-07-07T00:00:00Z
date_updated: 2021-01-12T07:52:54Z
day: '07'
doi: 10.1103/PhysRevLett.114.017203
extern: '1'
intvolume: ' 114'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://dspace.mit.edu/handle/1721.1/92979
month: '07'
oa: 1
oa_version: Published Version
publication: Physical Review Letters
publication_status: published
publisher: American Physical Society
publist_id: '7441'
quality_controlled: '1'
status: public
title: Confinement deconfinement transition as an indication of spin liquid type behavior
in Na2IrO3
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 114
year: '2015'
...
---
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
_id: '1728'
abstract:
- lang: eng
text: 'In the vertebrate neural tube, the morphogen Sonic Hedgehog (Shh) establishes
a characteristic pattern of gene expression. Here we quantify the Shh gradient
in the developing mouse neural tube and show that while the amplitude of the gradient
increases over time, the activity of the pathway transcriptional effectors, Gli
proteins, initially increases but later decreases. Computational analysis of the
pathway suggests three mechanisms that could contribute to this adaptation: transcriptional
upregulation of the inhibitory receptor Ptch1, transcriptional downregulation
of Gli and the differential stability of active and inactive Gli isoforms. Consistent
with this, Gli2 protein expression is downregulated during neural tube patterning
and adaptation continues when the pathway is stimulated downstream of Ptch1. Moreover,
the Shh-induced upregulation of Gli2 transcription prevents Gli activity levels
from adapting in a different cell type, NIH3T3 fibroblasts, despite the upregulation
of Ptch1. Multiple mechanisms therefore contribute to the intracellular dynamics
of Shh signalling, resulting in different signalling dynamics in different cell
types.'
acknowledgement: C.P.B. gratefully acknowledges funding from the Wellcome Trust through
a Research Career Development Fellowship (097319/Z/11/Z). This work was supported
by the Medical Research Council (U117560541) and Wellcome Trust (WT098326MA, WT098325MA).
article_number: '6709'
article_processing_charge: No
article_type: original
author:
- first_name: Michael
full_name: Cohen, Michael
last_name: Cohen
- first_name: Anna
full_name: Kicheva, Anna
id: 3959A2A0-F248-11E8-B48F-1D18A9856A87
last_name: Kicheva
orcid: 0000-0003-4509-4998
- first_name: Ana
full_name: Ribeiro, Ana
last_name: Ribeiro
- first_name: Robert
full_name: Blassberg, Robert
last_name: Blassberg
- first_name: Karen
full_name: Page, Karen
last_name: Page
- first_name: Chris
full_name: Barnes, Chris
last_name: Barnes
- first_name: James
full_name: Briscoe, James
last_name: Briscoe
citation:
ama: Cohen M, Kicheva A, Ribeiro A, et al. Ptch1 and Gli regulate Shh signalling
dynamics via multiple mechanisms. Nature Communications. 2015;6. doi:10.1038/ncomms7709
apa: Cohen, M., Kicheva, A., Ribeiro, A., Blassberg, R., Page, K., Barnes, C., &
Briscoe, J. (2015). Ptch1 and Gli regulate Shh signalling dynamics via multiple
mechanisms. Nature Communications. Springer Nature. https://doi.org/10.1038/ncomms7709
chicago: Cohen, Michael, Anna Kicheva, Ana Ribeiro, Robert Blassberg, Karen Page,
Chris Barnes, and James Briscoe. “Ptch1 and Gli Regulate Shh Signalling Dynamics
via Multiple Mechanisms.” Nature Communications. Springer Nature, 2015.
https://doi.org/10.1038/ncomms7709.
ieee: M. Cohen et al., “Ptch1 and Gli regulate Shh signalling dynamics via
multiple mechanisms,” Nature Communications, vol. 6. Springer Nature, 2015.
ista: Cohen M, Kicheva A, Ribeiro A, Blassberg R, Page K, Barnes C, Briscoe J. 2015.
Ptch1 and Gli regulate Shh signalling dynamics via multiple mechanisms. Nature
Communications. 6, 6709.
mla: Cohen, Michael, et al. “Ptch1 and Gli Regulate Shh Signalling Dynamics via
Multiple Mechanisms.” Nature Communications, vol. 6, 6709, Springer Nature,
2015, doi:10.1038/ncomms7709.
short: M. Cohen, A. Kicheva, A. Ribeiro, R. Blassberg, K. Page, C. Barnes, J. Briscoe,
Nature Communications 6 (2015).
date_created: 2018-12-11T11:53:42Z
date_published: 2015-04-02T00:00:00Z
date_updated: 2026-05-19T09:52:55Z
day: '02'
doi: 10.1038/ncomms7709
extern: '1'
external_id:
pmid:
- '25833741'
intvolume: ' 6'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1038/ncomms7709
month: '04'
oa: 1
oa_version: Published Version
pmid: 1
publication: Nature Communications
publication_identifier:
eissn:
- 2041-1723
publication_status: published
publisher: Springer Nature
publist_id: '5399'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Ptch1 and Gli regulate Shh signalling dynamics via multiple mechanisms
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: ba8df636-2132-11f1-aed0-ed93e2281fdd
volume: 6
year: '2015'
...
---
OA_place: repository
OA_type: green
_id: '1729'
abstract:
- lang: eng
text: We present a computer-aided programming approach to concurrency. The approach
allows programmers to program assuming a friendly, non-preemptive scheduler, and
our synthesis procedure inserts synchronization to ensure that the final program
works even with a preemptive scheduler. The correctness specification is implicit,
inferred from the non-preemptive behavior. Let us consider sequences of calls
that the program makes to an external interface. The specification requires that
any such sequence produced under a preemptive scheduler should be included in
the set of such sequences produced under a non-preemptive scheduler. The solution
is based on a finitary abstraction, an algorithm for bounded language inclusion
modulo an independence relation, and rules for inserting synchronization. We apply
the approach to device-driver programming, where the driver threads call the software
interface of the device and the API provided by the operating system. Our experiments
demonstrate that our synthesis method is precise and efficient, and, since it
does not require explicit specifications, is more practical than the conventional
approach based on user-provided assertions.
alternative_title:
- LNCS
article_processing_charge: No
author:
- first_name: Pavol
full_name: Cerny, Pavol
id: 4DCBEFFE-F248-11E8-B48F-1D18A9856A87
last_name: Cerny
- first_name: Edmund
full_name: Clarke, Edmund
last_name: Clarke
- 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: Arjun
full_name: Radhakrishna, Arjun
id: 3B51CAC4-F248-11E8-B48F-1D18A9856A87
last_name: Radhakrishna
- first_name: Leonid
full_name: Ryzhyk, Leonid
last_name: Ryzhyk
- first_name: Roopsha
full_name: Samanta, Roopsha
id: 3D2AAC08-F248-11E8-B48F-1D18A9856A87
last_name: Samanta
- first_name: Thorsten
full_name: Tarrach, Thorsten
id: 3D6E8F2C-F248-11E8-B48F-1D18A9856A87
last_name: Tarrach
orcid: 0000-0003-4409-8487
citation:
ama: Cerny P, Clarke E, Henzinger TA, et al. From non-preemptive to preemptive scheduling
using synchronization synthesis. 2015;9207:180-197. doi:10.1007/978-3-319-21668-3_11
apa: 'Cerny, P., Clarke, E., Henzinger, T. A., Radhakrishna, A., Ryzhyk, L., Samanta,
R., & Tarrach, T. (2015). From non-preemptive to preemptive scheduling using
synchronization synthesis. Presented at the CAV: Computer Aided Verification,
San Francisco, CA, United States: Springer. https://doi.org/10.1007/978-3-319-21668-3_11'
chicago: Cerny, Pavol, Edmund Clarke, Thomas A Henzinger, Arjun Radhakrishna, Leonid
Ryzhyk, Roopsha Samanta, and Thorsten Tarrach. “From Non-Preemptive to Preemptive
Scheduling Using Synchronization Synthesis.” Lecture Notes in Computer Science.
Springer, 2015. https://doi.org/10.1007/978-3-319-21668-3_11.
ieee: P. Cerny et al., “From non-preemptive to preemptive scheduling using
synchronization synthesis,” vol. 9207. Springer, pp. 180–197, 2015.
ista: Cerny P, Clarke E, Henzinger TA, Radhakrishna A, Ryzhyk L, Samanta R, Tarrach
T. 2015. From non-preemptive to preemptive scheduling using synchronization synthesis.
9207, 180–197.
mla: Cerny, Pavol, et al. From Non-Preemptive to Preemptive Scheduling Using
Synchronization Synthesis. Vol. 9207, Springer, 2015, pp. 180–97, doi:10.1007/978-3-319-21668-3_11.
short: P. Cerny, E. Clarke, T.A. Henzinger, A. Radhakrishna, L. Ryzhyk, R. Samanta,
T. Tarrach, 9207 (2015) 180–197.
conference:
end_date: 2015-07-24
location: San Francisco, CA, United States
name: 'CAV: Computer Aided Verification'
start_date: 2015-07-18
date_created: 2018-12-11T11:53:42Z
date_published: 2015-07-01T00:00:00Z
date_updated: 2026-04-09T10:54:00Z
day: '01'
ddc:
- '000'
department:
- _id: ToHe
doi: 10.1007/978-3-319-21668-3_11
ec_funded: 1
external_id:
isi:
- '000491470400011'
file:
- access_level: open_access
checksum: 6ff58ac220e2f20cb001ba35d4924495
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:08:53Z
date_updated: 2025-06-26T07:12:35Z
file_id: '4715'
file_name: IST-2015-336-v1+1_long_version.pdf
file_size: 481922
relation: main_file
file_date_updated: 2025-06-26T07:12:35Z
has_accepted_license: '1'
intvolume: ' 9207'
isi: 1
language:
- iso: eng
month: '07'
oa: 1
oa_version: Submitted Version
page: 180 - 197
project:
- _id: 25EE3708-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '267989'
name: Quantitative Reactive Modeling
- _id: 25F42A32-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: Z211
name: Formal methods for the design and analysis of complex systems
- _id: 25832EC2-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: S 11407_N23
name: Rigorous Systems Engineering
publication_status: published
publisher: Springer
publist_id: '5398'
pubrep_id: '336'
quality_controlled: '1'
related_material:
record:
- id: '1338'
relation: later_version
status: public
- id: '1130'
relation: dissertation_contains
status: public
scopus_import: '1'
series_title: Lecture Notes in Computer Science
status: public
title: From non-preemptive to preemptive scheduling using synchronization synthesis
type: conference
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 9207
year: '2015'
...
---
_id: '1730'
abstract:
- lang: eng
text: How much cutting is needed to simplify the topology of a surface? We provide
bounds for several instances of this question, for the minimum length of topologically
non-trivial closed curves, pants decompositions, and cut graphs with a given combinatorial
map in triangulated combinatorial surfaces (or their dual cross-metric counterpart).
Our work builds upon Riemannian systolic inequalities, which bound the minimum
length of non-trivial closed curves in terms of the genus and the area of the
surface. We first describe a systematic way to translate Riemannian systolic inequalities
to a discrete setting, and vice-versa. This implies a conjecture by Przytycka
and Przytycki (Graph structure theory. Contemporary Mathematics, vol. 147, 1993),
a number of new systolic inequalities in the discrete setting, and the fact that
a theorem of Hutchinson on the edge-width of triangulated surfaces and Gromov’s
systolic inequality for surfaces are essentially equivalent. We also discuss how
these proofs generalize to higher dimensions. Then we focus on topological decompositions
of surfaces. Relying on ideas of Buser, we prove the existence of pants decompositions
of length O(g^(3/2)n^(1/2)) for any triangulated combinatorial surface of genus
g with n triangles, and describe an O(gn)-time algorithm to compute such a decomposition.
Finally, we consider the problem of embedding a cut graph (or more generally a
cellular graph) with a given combinatorial map on a given surface. Using random
triangulations, we prove (essentially) that, for any choice of a combinatorial
map, there are some surfaces on which any cellular embedding with that combinatorial
map has length superlinear in the number of triangles of the triangulated combinatorial
surface. There is also a similar result for graphs embedded on polyhedral triangulations.
article_processing_charge: No
arxiv: 1
author:
- first_name: Éric
full_name: Colin De Verdière, Éric
last_name: Colin De Verdière
- first_name: Alfredo
full_name: Hubard, Alfredo
last_name: Hubard
- first_name: Arnaud N
full_name: De Mesmay, Arnaud N
id: 3DB2F25C-F248-11E8-B48F-1D18A9856A87
last_name: De Mesmay
citation:
ama: Colin De Verdière É, Hubard A, de Mesmay AN. Discrete systolic inequalities
and decompositions of triangulated surfaces. Discrete & Computational Geometry.
2015;53(3):587-620. doi:10.1007/s00454-015-9679-9
apa: Colin De Verdière, É., Hubard, A., & de Mesmay, A. N. (2015). Discrete
systolic inequalities and decompositions of triangulated surfaces. Discrete
& Computational Geometry. Springer. https://doi.org/10.1007/s00454-015-9679-9
chicago: Colin De Verdière, Éric, Alfredo Hubard, and Arnaud N de Mesmay. “Discrete
Systolic Inequalities and Decompositions of Triangulated Surfaces.” Discrete
& Computational Geometry. Springer, 2015. https://doi.org/10.1007/s00454-015-9679-9.
ieee: É. Colin De Verdière, A. Hubard, and A. N. de Mesmay, “Discrete systolic inequalities
and decompositions of triangulated surfaces,” Discrete & Computational
Geometry, vol. 53, no. 3. Springer, pp. 587–620, 2015.
ista: Colin De Verdière É, Hubard A, de Mesmay AN. 2015. Discrete systolic inequalities
and decompositions of triangulated surfaces. Discrete & Computational Geometry.
53(3), 587–620.
mla: Colin De Verdière, Éric, et al. “Discrete Systolic Inequalities and Decompositions
of Triangulated Surfaces.” Discrete & Computational Geometry, vol.
53, no. 3, Springer, 2015, pp. 587–620, doi:10.1007/s00454-015-9679-9.
short: É. Colin De Verdière, A. Hubard, A.N. de Mesmay, Discrete & Computational
Geometry 53 (2015) 587–620.
date_created: 2018-12-11T11:53:42Z
date_published: 2015-04-02T00:00:00Z
date_updated: 2025-09-23T08:27:38Z
day: '02'
department:
- _id: UlWa
doi: 10.1007/s00454-015-9679-9
external_id:
arxiv:
- '1408.4036'
isi:
- '000353895200006'
intvolume: ' 53'
isi: 1
issue: '3'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: http://arxiv.org/abs/1408.4036
month: '04'
oa: 1
oa_version: Preprint
page: 587 - 620
publication: Discrete & Computational Geometry
publication_status: published
publisher: Springer
publist_id: '5397'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Discrete systolic inequalities and decompositions of triangulated surfaces
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 53
year: '2015'
...
---
_id: '1731'
abstract:
- lang: eng
text: 'We consider two-player zero-sum games on graphs. These games can be classified
on the basis of the information of the players and on the mode of interaction
between them. On the basis of information the classification is as follows: (a)
partial-observation (both players have partial view of the game); (b) one-sided
complete-observation (one player has complete observation); and (c) complete-observation
(both players have complete view of the game). On the basis of mode of interaction
we have the following classification: (a) concurrent (both players interact simultaneously);
and (b) turn-based (both players interact in turn). The two sources of randomness
in these games are randomness in transition function and randomness in strategies.
In general, randomized strategies are more powerful than deterministic strategies,
and randomness in transitions gives more general classes of games. In this work
we present a complete characterization for the classes of games where randomness
is not helpful in: (a) the transition function probabilistic transition can be
simulated by deterministic transition); and (b) strategies (pure strategies are
as powerful as randomized strategies). As consequence of our characterization
we obtain new undecidability results for these games. '
article_processing_charge: No
arxiv: 1
author:
- first_name: Krishnendu
full_name: Chatterjee, Krishnendu
id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
last_name: Chatterjee
orcid: 0000-0002-4561-241X
- first_name: Laurent
full_name: Doyen, Laurent
last_name: Doyen
- first_name: Hugo
full_name: Gimbert, Hugo
last_name: Gimbert
- first_name: Thomas A
full_name: Henzinger, Thomas A
id: 40876CD8-F248-11E8-B48F-1D18A9856A87
last_name: Henzinger
orcid: 0000−0002−2985−7724
citation:
ama: Chatterjee K, Doyen L, Gimbert H, Henzinger TA. Randomness for free. Information
and Computation. 2015;245(12):3-16. doi:10.1016/j.ic.2015.06.003
apa: Chatterjee, K., Doyen, L., Gimbert, H., & Henzinger, T. A. (2015). Randomness
for free. Information and Computation. Elsevier. https://doi.org/10.1016/j.ic.2015.06.003
chicago: Chatterjee, Krishnendu, Laurent Doyen, Hugo Gimbert, and Thomas A Henzinger.
“Randomness for Free.” Information and Computation. Elsevier, 2015. https://doi.org/10.1016/j.ic.2015.06.003.
ieee: K. Chatterjee, L. Doyen, H. Gimbert, and T. A. Henzinger, “Randomness for
free,” Information and Computation, vol. 245, no. 12. Elsevier, pp. 3–16,
2015.
ista: Chatterjee K, Doyen L, Gimbert H, Henzinger TA. 2015. Randomness for free.
Information and Computation. 245(12), 3–16.
mla: Chatterjee, Krishnendu, et al. “Randomness for Free.” Information and Computation,
vol. 245, no. 12, Elsevier, 2015, pp. 3–16, doi:10.1016/j.ic.2015.06.003.
short: K. Chatterjee, L. Doyen, H. Gimbert, T.A. Henzinger, Information and Computation
245 (2015) 3–16.
corr_author: '1'
date_created: 2018-12-11T11:53:42Z
date_published: 2015-12-01T00:00:00Z
date_updated: 2025-09-23T10:32:00Z
day: '01'
department:
- _id: KrCh
- _id: ToHe
doi: 10.1016/j.ic.2015.06.003
ec_funded: 1
external_id:
arxiv:
- '1006.0673'
isi:
- '000368899100002'
intvolume: ' 245'
isi: 1
issue: '12'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: http://arxiv.org/abs/1006.0673
month: '12'
oa: 1
oa_version: Preprint
page: 3 - 16
project:
- _id: 2584A770-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: P 23499-N23
name: Modern Graph Algorithmic Techniques in Formal Verification
- _id: 25863FF4-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: S11407
name: Game Theory
- _id: 2581B60A-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '279307'
name: 'Quantitative Graph Games: Theory and Applications'
- _id: 2587B514-B435-11E9-9278-68D0E5697425
name: Microsoft Research Faculty Fellowship
- _id: 25EE3708-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '267989'
name: Quantitative Reactive Modeling
- _id: 25EFB36C-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '215543'
name: COMponent-Based Embedded Systems design Techniques
- _id: 25F1337C-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '214373'
name: Design for Embedded Systems
- _id: 25832EC2-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: S 11407_N23
name: Rigorous Systems Engineering
publication: Information and Computation
publication_status: published
publisher: Elsevier
publist_id: '5395'
quality_controlled: '1'
related_material:
record:
- id: '3856'
relation: earlier_version
status: public
scopus_import: '1'
status: public
title: Randomness for free
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 245
year: '2015'
...
---
_id: '1732'
abstract:
- lang: eng
text: We consider partially observable Markov decision processes (POMDPs), that
are a standard framework for robotics applications to model uncertainties present
in the real world, with temporal logic specifications. All temporal logic specifications
in linear-time temporal logic (LTL) can be expressed as parity objectives. We
study the qualitative analysis problem for POMDPs with parity objectives that
asks whether there is a controller (policy) to ensure that the objective holds
with probability 1 (almost-surely). While the qualitative analysis of POMDPs with
parity objectives is undecidable, recent results show that when restricted to
finite-memory policies the problem is EXPTIME-complete. While the problem is intractable
in theory, we present a practical approach to solve the qualitative analysis problem.
We designed several heuristics to deal with the exponential complexity, and have
used our implementation on a number of well-known POMDP examples for robotics
applications. Our results provide the first practical approach to solve the qualitative
analysis of robot motion planning with LTL properties in the presence of uncertainty.
arxiv: 1
author:
- first_name: Krishnendu
full_name: Chatterjee, Krishnendu
id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
last_name: Chatterjee
orcid: 0000-0002-4561-241X
- first_name: Martin
full_name: Chmelik, Martin
id: 3624234E-F248-11E8-B48F-1D18A9856A87
last_name: Chmelik
- first_name: Raghav
full_name: Gupta, Raghav
last_name: Gupta
- first_name: Ayush
full_name: Kanodia, Ayush
last_name: Kanodia
citation:
ama: 'Chatterjee K, Chmelik M, Gupta R, Kanodia A. Qualitative analysis of POMDPs
with temporal logic specifications for robotics applications. In: IEEE; 2015:325-330.
doi:10.1109/ICRA.2015.7139019'
apa: 'Chatterjee, K., Chmelik, M., Gupta, R., & Kanodia, A. (2015). Qualitative
analysis of POMDPs with temporal logic specifications for robotics applications
(pp. 325–330). Presented at the ICRA: International Conference on Robotics and
Automation, Seattle, WA, United States: IEEE. https://doi.org/10.1109/ICRA.2015.7139019'
chicago: Chatterjee, Krishnendu, Martin Chmelik, Raghav Gupta, and Ayush Kanodia.
“Qualitative Analysis of POMDPs with Temporal Logic Specifications for Robotics
Applications,” 325–30. IEEE, 2015. https://doi.org/10.1109/ICRA.2015.7139019.
ieee: 'K. Chatterjee, M. Chmelik, R. Gupta, and A. Kanodia, “Qualitative analysis
of POMDPs with temporal logic specifications for robotics applications,” presented
at the ICRA: International Conference on Robotics and Automation, Seattle, WA,
United States, 2015, pp. 325–330.'
ista: 'Chatterjee K, Chmelik M, Gupta R, Kanodia A. 2015. Qualitative analysis of
POMDPs with temporal logic specifications for robotics applications. ICRA: International
Conference on Robotics and Automation, 325–330.'
mla: Chatterjee, Krishnendu, et al. Qualitative Analysis of POMDPs with Temporal
Logic Specifications for Robotics Applications. IEEE, 2015, pp. 325–30, doi:10.1109/ICRA.2015.7139019.
short: K. Chatterjee, M. Chmelik, R. Gupta, A. Kanodia, in:, IEEE, 2015, pp. 325–330.
conference:
end_date: 2015-05-30
location: Seattle, WA, United States
name: 'ICRA: International Conference on Robotics and Automation'
start_date: 2015-05-26
date_created: 2018-12-11T11:53:43Z
date_published: 2015-01-01T00:00:00Z
date_updated: 2023-02-23T12:25:52Z
day: '01'
department:
- _id: KrCh
doi: 10.1109/ICRA.2015.7139019
ec_funded: 1
external_id:
arxiv:
- '1409.3360'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: http://arxiv.org/abs/1409.3360
month: '01'
oa: 1
oa_version: Preprint
page: 325 - 330
project:
- _id: 2584A770-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: P 23499-N23
name: Modern Graph Algorithmic Techniques in Formal Verification
- _id: 25863FF4-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: S11407
name: Game Theory
- _id: 2581B60A-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '279307'
name: 'Quantitative Graph Games: Theory and Applications'
publication_status: published
publisher: IEEE
publist_id: '5394'
quality_controlled: '1'
related_material:
record:
- id: '5424'
relation: earlier_version
status: public
- id: '5426'
relation: earlier_version
status: public
scopus_import: 1
status: public
title: Qualitative analysis of POMDPs with temporal logic specifications for robotics
applications
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2015'
...
---
_id: '1734'
abstract:
- lang: eng
text: Facial appearance capture is now firmly established within academic research
and used extensively across various application domains, perhaps most prominently
in the entertainment industry through the design of virtual characters in video
games and films. While significant progress has occurred over the last two decades,
no single survey currently exists that discusses the similarities, differences,
and practical considerations of the available appearance capture techniques as
applied to human faces. A central difficulty of facial appearance capture is the
way light interacts with skin-which has a complex multi-layered structure-and
the interactions that occur below the skin surface can, by definition, only be
observed indirectly. In this report, we distinguish between two broad strategies
for dealing with this complexity. "Image-based methods" try to exhaustively
capture the exact face appearance under different lighting and viewing conditions,
and then render the face through weighted image combinations. "Parametric
methods" instead fit the captured reflectance data to some parametric appearance
model used during rendering, allowing for a more lightweight and flexible representation
but at the cost of potentially increased rendering complexity or inexact reproduction.
The goal of this report is to provide an overview that can guide practitioners
and researchers in assessing the tradeoffs between current approaches and identifying
directions for future advances in facial appearance capture.
article_processing_charge: No
author:
- first_name: Oliver
full_name: Klehm, Oliver
last_name: Klehm
- first_name: Fabrice
full_name: Rousselle, Fabrice
last_name: Rousselle
- first_name: Marios
full_name: Papas, Marios
last_name: Papas
- first_name: Derek
full_name: Bradley, Derek
last_name: Bradley
- first_name: Christophe
full_name: Hery, Christophe
last_name: Hery
- first_name: Bernd
full_name: Bickel, Bernd
id: 49876194-F248-11E8-B48F-1D18A9856A87
last_name: Bickel
orcid: 0000-0001-6511-9385
- first_name: Wojciech
full_name: Jarosz, Wojciech
last_name: Jarosz
- first_name: Thabo
full_name: Beeler, Thabo
last_name: Beeler
citation:
ama: Klehm O, Rousselle F, Papas M, et al. Recent advances in facial appearance
capture. Computer Graphics Forum. 2015;34(2):709-733. doi:10.1111/cgf.12594
apa: Klehm, O., Rousselle, F., Papas, M., Bradley, D., Hery, C., Bickel, B., … Beeler,
T. (2015). Recent advances in facial appearance capture. Computer Graphics
Forum. Wiley-Blackwell. https://doi.org/10.1111/cgf.12594
chicago: Klehm, Oliver, Fabrice Rousselle, Marios Papas, Derek Bradley, Christophe
Hery, Bernd Bickel, Wojciech Jarosz, and Thabo Beeler. “Recent Advances in Facial
Appearance Capture.” Computer Graphics Forum. Wiley-Blackwell, 2015. https://doi.org/10.1111/cgf.12594.
ieee: O. Klehm et al., “Recent advances in facial appearance capture,” Computer
Graphics Forum, vol. 34, no. 2. Wiley-Blackwell, pp. 709–733, 2015.
ista: Klehm O, Rousselle F, Papas M, Bradley D, Hery C, Bickel B, Jarosz W, Beeler
T. 2015. Recent advances in facial appearance capture. Computer Graphics Forum.
34(2), 709–733.
mla: Klehm, Oliver, et al. “Recent Advances in Facial Appearance Capture.” Computer
Graphics Forum, vol. 34, no. 2, Wiley-Blackwell, 2015, pp. 709–33, doi:10.1111/cgf.12594.
short: O. Klehm, F. Rousselle, M. Papas, D. Bradley, C. Hery, B. Bickel, W. Jarosz,
T. Beeler, Computer Graphics Forum 34 (2015) 709–733.
date_created: 2018-12-11T11:53:43Z
date_published: 2015-05-01T00:00:00Z
date_updated: 2025-09-23T10:32:38Z
day: '01'
department:
- _id: BeBi
doi: 10.1111/cgf.12594
external_id:
isi:
- '000358326600063'
intvolume: ' 34'
isi: 1
issue: '2'
language:
- iso: eng
main_file_link:
- url: https://graphics.ethz.ch/~mpapas/publications/fac_star.pdf
month: '05'
oa_version: None
page: 709 - 733
publication: Computer Graphics Forum
publication_status: published
publisher: Wiley-Blackwell
publist_id: '5391'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Recent advances in facial appearance capture
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 34
year: '2015'
...
---
_id: '1735'
abstract:
- lang: eng
text: This work presents a method for efficiently simplifying the pressure projection
step in a liquid simulation. We first devise a straightforward dimension reduction
technique that dramatically reduces the cost of solving the pressure projection.
Next, we introduce a novel change of basis that satisfies free-surface boundary
conditions exactly, regardless of the accuracy of the pressure solve. When combined,
these ideas greatly reduce the computational complexity of the pressure solve
without compromising free surface boundary conditions at the highest level of
detail. Our techniques are easy to parallelize, and they effectively eliminate
the computational bottleneck for large liquid simulations.
acknowledgement: The first author was supported by a JSPS Postdoctoral Fellowship
for Research Abroad
article_processing_charge: No
author:
- first_name: Ryoichi
full_name: Ando, Ryoichi
last_name: Ando
- first_name: Nils
full_name: Thürey, Nils
last_name: Thürey
- first_name: Christopher J
full_name: Wojtan, Christopher J
id: 3C61F1D2-F248-11E8-B48F-1D18A9856A87
last_name: Wojtan
orcid: 0000-0001-6646-5546
citation:
ama: Ando R, Thürey N, Wojtan C. A dimension-reduced pressure solver for liquid
simulations. Computer Graphics Forum. 2015;34(2):473-480. doi:10.1111/cgf.12576
apa: Ando, R., Thürey, N., & Wojtan, C. (2015). A dimension-reduced pressure
solver for liquid simulations. Computer Graphics Forum. Wiley. https://doi.org/10.1111/cgf.12576
chicago: Ando, Ryoichi, Nils Thürey, and Chris Wojtan. “A Dimension-Reduced Pressure
Solver for Liquid Simulations.” Computer Graphics Forum. Wiley, 2015. https://doi.org/10.1111/cgf.12576.
ieee: R. Ando, N. Thürey, and C. Wojtan, “A dimension-reduced pressure solver for
liquid simulations,” Computer Graphics Forum, vol. 34, no. 2. Wiley, pp.
473–480, 2015.
ista: Ando R, Thürey N, Wojtan C. 2015. A dimension-reduced pressure solver for
liquid simulations. Computer Graphics Forum. 34(2), 473–480.
mla: Ando, Ryoichi, et al. “A Dimension-Reduced Pressure Solver for Liquid Simulations.”
Computer Graphics Forum, vol. 34, no. 2, Wiley, 2015, pp. 473–80, doi:10.1111/cgf.12576.
short: R. Ando, N. Thürey, C. Wojtan, Computer Graphics Forum 34 (2015) 473–480.
date_created: 2018-12-11T11:53:44Z
date_published: 2015-05-01T00:00:00Z
date_updated: 2025-09-22T14:29:19Z
day: '01'
ddc:
- '000'
department:
- _id: ChWo
doi: 10.1111/cgf.12576
external_id:
isi:
- '000358326600045'
file:
- access_level: open_access
checksum: 590752bf977855b337a80f78a9bc2404
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:16:30Z
date_updated: 2020-07-14T12:45:15Z
file_id: '5218'
file_name: IST-2016-607-v1+1_coarsegrid.pdf
file_size: 6312352
relation: main_file
file_date_updated: 2020-07-14T12:45:15Z
has_accepted_license: '1'
intvolume: ' 34'
isi: 1
issue: '2'
language:
- iso: eng
month: '05'
oa: 1
oa_version: Submitted Version
page: 473 - 480
publication: Computer Graphics Forum
publication_status: published
publisher: Wiley
publist_id: '5389'
pubrep_id: '607'
quality_controlled: '1'
scopus_import: '1'
status: public
title: A dimension-reduced pressure solver for liquid simulations
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 34
year: '2015'
...
---
_id: '17615'
abstract:
- lang: eng
text: Graham et al. have detected a 5.2 yr periodic optical variability of the quasar
PG 1302-102 at redshift z = 0.3, which they interpret as the redshifted orbital
period (1 + z)tbin of a putative supermassive black hole binary (SMBHB). Here,
we consider the implications of a 3–8 times shorter orbital period, suggested
by hydrodynamical simulations of circumbinary discs (CBDs) with nearly equal-mass
SMBHBs (q ≡ M2/M1 ≳ 0.3). With the corresponding 2–4 times tighter binary separation,
PG 1302 would be undergoing gravitational wave dominated inspiral, and serve as
a proof that the BHs can be fuelled and produce bright emission even in this late
stage of the merger. The expected fraction of binaries with the shorter tbin,
among bright quasars, would be reduced by one to two orders of magnitude, compared
to the 5.2 yr period, in better agreement with the rarity of candidates reported
by Graham et al. Finally, shorter periods would imply higher binary speeds, possibly
imprinting periodicity on the light curves from relativistic beaming, as well
as measurable relativistic effects on the Fe K α line. The CBD model predicts
additional periodic variability on time-scales of tbin and ≈0.5tbin, as well as
periodic variation of broad line widths and offsets relative to the narrow lines,
which are consistent with the observations. Future observations will be able to
test these predictions and hence the binary+CBD hypothesis for PG 1302.
article_processing_charge: No
article_type: original
author:
- first_name: D. J.
full_name: D'Orazio, D. J.
last_name: D'Orazio
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
- first_name: P.
full_name: Duffell, P.
last_name: Duffell
- first_name: B. D.
full_name: Farris, B. D.
last_name: Farris
- first_name: A. I.
full_name: MacFadyen, A. I.
last_name: MacFadyen
citation:
ama: D’Orazio DJ, Haiman Z, Duffell P, Farris BD, MacFadyen AI. A reduced orbital
period for the supermassive black hole binary candidate in the quasar PG 1302-102?
Monthly Notices of the Royal Astronomical Society. 2015;452(3):2540-2545.
doi:10.1093/mnras/stv1457
apa: D’Orazio, D. J., Haiman, Z., Duffell, P., Farris, B. D., & MacFadyen, A.
I. (2015). A reduced orbital period for the supermassive black hole binary candidate
in the quasar PG 1302-102? Monthly Notices of the Royal Astronomical Society.
Oxford University Press. https://doi.org/10.1093/mnras/stv1457
chicago: D’Orazio, D. J., Zoltán Haiman, P. Duffell, B. D. Farris, and A. I. MacFadyen.
“A Reduced Orbital Period for the Supermassive Black Hole Binary Candidate in
the Quasar PG 1302-102?” Monthly Notices of the Royal Astronomical Society.
Oxford University Press, 2015. https://doi.org/10.1093/mnras/stv1457.
ieee: D. J. D’Orazio, Z. Haiman, P. Duffell, B. D. Farris, and A. I. MacFadyen,
“A reduced orbital period for the supermassive black hole binary candidate in
the quasar PG 1302-102?,” Monthly Notices of the Royal Astronomical Society,
vol. 452, no. 3. Oxford University Press, pp. 2540–2545, 2015.
ista: D’Orazio DJ, Haiman Z, Duffell P, Farris BD, MacFadyen AI. 2015. A reduced
orbital period for the supermassive black hole binary candidate in the quasar
PG 1302-102? Monthly Notices of the Royal Astronomical Society. 452(3), 2540–2545.
mla: D’Orazio, D. J., et al. “A Reduced Orbital Period for the Supermassive Black
Hole Binary Candidate in the Quasar PG 1302-102?” Monthly Notices of the Royal
Astronomical Society, vol. 452, no. 3, Oxford University Press, 2015, pp.
2540–45, doi:10.1093/mnras/stv1457.
short: D.J. D’Orazio, Z. Haiman, P. Duffell, B.D. Farris, A.I. MacFadyen, Monthly
Notices of the Royal Astronomical Society 452 (2015) 2540–2545.
date_created: 2024-09-05T13:31:30Z
date_published: 2015-07-24T00:00:00Z
date_updated: 2024-09-24T07:58:52Z
day: '24'
doi: 10.1093/mnras/stv1457
extern: '1'
intvolume: ' 452'
issue: '3'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1093/mnras/stv1457
month: '07'
oa: 1
oa_version: Published Version
page: 2540-2545
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
issn:
- 0035-8711
- 1365-2966
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: A reduced orbital period for the supermassive black hole binary candidate in
the quasar PG 1302-102?
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 452
year: '2015'
...
---
_id: '17622'
abstract:
- lang: eng
text: Graham et al. discovered a supermassive black hole binary (SMBHB) candidate
and identified the detected 5.2 yr period of the optical variability as the orbital
period of the binary. Hydrodynamical simulations predict multiple periodic components
for the variability of SMBHBs, thus raising the possibility that the true period
of the binary is different from 5.2 yr. We analyse the periodogram of PG1302 and
find no compelling evidence for additional peaks. We also point out that, despite
the 5.2 yr peak being significant if a single source is considered, further analysis
is required to account for the fact that PG1302 was selected among a large sample
of 247 000 quasars. We derive upper limits on any additional periodic modulations
in the available data, by modelling the light curve as the sum of stochastic noise
and the known 5.2 yr periodic component, and injecting additional sinusoidal signals.
We find that, with the current data, we would be able to detect with high significance
(false alarm probability <1 per cent) secondary periodic terms, with periods in
the range predicted by the simulations, if the amplitude of the variability was
at least ∼0.06 mag (compared to 0.14 mag for the main sinusoid). A three-year
follow-up monitoring campaign with weekly observations can increase the sensitivity
for detecting secondary peaks by ≈50 per cent, and would allow a more robust test
of predictions from hydrodynamical simulations.
article_processing_charge: No
article_type: original
author:
- first_name: M.
full_name: Charisi, M.
last_name: Charisi
- first_name: I.
full_name: Bartos, I.
last_name: Bartos
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
- first_name: A. M.
full_name: Price-Whelan, A. M.
last_name: Price-Whelan
- first_name: S.
full_name: Márka, S.
last_name: Márka
citation:
ama: 'Charisi M, Bartos I, Haiman Z, Price-Whelan AM, Márka S. Multiple periods
in the variability of the supermassive black hole binary candidate quasar PG1302-102?
Monthly Notices of the Royal Astronomical Society: Letters. 2015;454(1):L21-L25.
doi:10.1093/mnrasl/slv111'
apa: 'Charisi, M., Bartos, I., Haiman, Z., Price-Whelan, A. M., & Márka, S.
(2015). Multiple periods in the variability of the supermassive black hole binary
candidate quasar PG1302-102? Monthly Notices of the Royal Astronomical Society:
Letters. Oxford University Press. https://doi.org/10.1093/mnrasl/slv111'
chicago: 'Charisi, M., I. Bartos, Zoltán Haiman, A. M. Price-Whelan, and S. Márka.
“Multiple Periods in the Variability of the Supermassive Black Hole Binary Candidate
Quasar PG1302-102?” Monthly Notices of the Royal Astronomical Society: Letters.
Oxford University Press, 2015. https://doi.org/10.1093/mnrasl/slv111.'
ieee: 'M. Charisi, I. Bartos, Z. Haiman, A. M. Price-Whelan, and S. Márka, “Multiple
periods in the variability of the supermassive black hole binary candidate quasar
PG1302-102?,” Monthly Notices of the Royal Astronomical Society: Letters,
vol. 454, no. 1. Oxford University Press, pp. L21–L25, 2015.'
ista: 'Charisi M, Bartos I, Haiman Z, Price-Whelan AM, Márka S. 2015. Multiple periods
in the variability of the supermassive black hole binary candidate quasar PG1302-102?
Monthly Notices of the Royal Astronomical Society: Letters. 454(1), L21–L25.'
mla: 'Charisi, M., et al. “Multiple Periods in the Variability of the Supermassive
Black Hole Binary Candidate Quasar PG1302-102?” Monthly Notices of the Royal
Astronomical Society: Letters, vol. 454, no. 1, Oxford University Press, 2015,
pp. L21–25, doi:10.1093/mnrasl/slv111.'
short: 'M. Charisi, I. Bartos, Z. Haiman, A.M. Price-Whelan, S. Márka, Monthly Notices
of the Royal Astronomical Society: Letters 454 (2015) L21–L25.'
date_created: 2024-09-05T13:51:39Z
date_published: 2015-09-11T00:00:00Z
date_updated: 2024-09-24T08:34:12Z
day: '11'
doi: 10.1093/mnrasl/slv111
extern: '1'
intvolume: ' 454'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1093/mnrasl/slv111
month: '09'
oa: 1
oa_version: Published Version
page: L21-L25
publication: 'Monthly Notices of the Royal Astronomical Society: Letters'
publication_identifier:
issn:
- 1745-3933
- 1745-3925
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: Multiple periods in the variability of the supermassive black hole binary candidate
quasar PG1302-102?
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 454
year: '2015'
...
---
_id: '17641'
abstract:
- lang: eng
text: 'In order to elucidate the origin of spin in both dark matter and baryons
in galaxies, we have performed hydrodynamical simulations from cosmological initial
conditions. We study atomic cooling haloes in the redshift range 100>z>9 with
masses of order 109M⊙ at redshift z=10. We assume that the gas has primordial
composition and that H2-cooling and prior star-formation in the haloes have been
suppressed. We present a comprehensive analysis of the gas and dark matter properties
of four halos with very low (λ≈0.01), low (λ≈0.04), high (λ≈0.06) and very high
(λ≈0.1) spin parameter. Our main conclusion is that the spin orientation and magnitude
is initially well described by tidal torque linear theory, but later on is determined
by the merging and accretion history of each halo. We provide evidence that the
topology of the merging region, i.e. the number of colliding filaments, gives
an accurate prediction for the spin of dark matter and gas: halos at the center
of knots will have low spin while those in the center of filaments will have high
spin. The spin of a halo is given by λ≈0.05×(7.6/numberoffilaments)^5.1'
article_processing_charge: No
article_type: original
author:
- first_name: Joaquin
full_name: Prieto, Joaquin
last_name: Prieto
- first_name: Raul
full_name: Jimenez, Raul
last_name: Jimenez
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
- first_name: Roberto E.
full_name: González, Roberto E.
last_name: González
citation:
ama: 'Prieto J, Jimenez R, Haiman Z, González RE. The origin of spin in galaxies:
Clues from simulations of atomic cooling haloes. Monthly Notices of the Royal
Astronomical Society. 2015;452(1):784-802. doi:10.1093/mnras/stv1234'
apa: 'Prieto, J., Jimenez, R., Haiman, Z., & González, R. E. (2015). The origin
of spin in galaxies: Clues from simulations of atomic cooling haloes. Monthly
Notices of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/stv1234'
chicago: 'Prieto, Joaquin, Raul Jimenez, Zoltán Haiman, and Roberto E. González.
“The Origin of Spin in Galaxies: Clues from Simulations of Atomic Cooling Haloes.”
Monthly Notices of the Royal Astronomical Society. Oxford University Press,
2015. https://doi.org/10.1093/mnras/stv1234.'
ieee: 'J. Prieto, R. Jimenez, Z. Haiman, and R. E. González, “The origin of spin
in galaxies: Clues from simulations of atomic cooling haloes,” Monthly Notices
of the Royal Astronomical Society, vol. 452, no. 1. Oxford University Press,
pp. 784–802, 2015.'
ista: 'Prieto J, Jimenez R, Haiman Z, González RE. 2015. The origin of spin in galaxies:
Clues from simulations of atomic cooling haloes. Monthly Notices of the Royal
Astronomical Society. 452(1), 784–802.'
mla: 'Prieto, Joaquin, et al. “The Origin of Spin in Galaxies: Clues from Simulations
of Atomic Cooling Haloes.” Monthly Notices of the Royal Astronomical Society,
vol. 452, no. 1, Oxford University Press, 2015, pp. 784–802, doi:10.1093/mnras/stv1234.'
short: J. Prieto, R. Jimenez, Z. Haiman, R.E. González, Monthly Notices of the Royal
Astronomical Society 452 (2015) 784–802.
date_created: 2024-09-06T07:18:53Z
date_published: 2015-07-08T00:00:00Z
date_updated: 2024-09-24T11:52:00Z
day: '08'
doi: 10.1093/mnras/stv1234
extern: '1'
intvolume: ' 452'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1093/mnras/stv1234
month: '07'
oa: 1
oa_version: Published Version
page: 784-802
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
issn:
- 0035-8711
- 1365-2966
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'The origin of spin in galaxies: Clues from simulations of atomic cooling haloes'
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 452
year: '2015'
...