---
_id: '9014'
abstract:
- lang: eng
text: In this Letter, we explore experimentally the phase behavior of a dense active
suspension of self-propelled colloids. In addition to a solidlike and gaslike
phase observed for high and low densities, a novel cluster phase is reported at
intermediate densities. This takes the form of a stationary assembly of dense
aggregates—resulting from a permanent dynamical merging and separation of active
colloids—whose average size grows with activity as a linear function of the self-propelling
velocity. While different possible scenarios can be considered to account for
these observations—such as a generic velocity weakening instability recently put
forward—we show that the experimental results are reproduced mathematically by
a chemotactic aggregation mechanism, originally introduced to account for bacterial
aggregation and accounting here for diffusiophoretic chemical interaction between
colloidal swimmers.
article_number: '268303'
article_processing_charge: No
article_type: letter_note
arxiv: 1
author:
- first_name: I.
full_name: Theurkauff, I.
last_name: Theurkauff
- first_name: C.
full_name: Cottin-Bizonne, C.
last_name: Cottin-Bizonne
- first_name: Jérémie A
full_name: Palacci, Jérémie A
id: 8fb92548-2b22-11eb-b7c1-a3f0d08d7c7d
last_name: Palacci
orcid: 0000-0002-7253-9465
- first_name: C.
full_name: Ybert, C.
last_name: Ybert
- first_name: L.
full_name: Bocquet, L.
last_name: Bocquet
citation:
ama: Theurkauff I, Cottin-Bizonne C, Palacci JA, Ybert C, Bocquet L. Dynamic clustering
in active colloidal suspensions with chemical signaling. Physical Review Letters.
2012;108(26). doi:10.1103/physrevlett.108.268303
apa: Theurkauff, I., Cottin-Bizonne, C., Palacci, J. A., Ybert, C., & Bocquet,
L. (2012). Dynamic clustering in active colloidal suspensions with chemical signaling.
Physical Review Letters. American Physical Society . https://doi.org/10.1103/physrevlett.108.268303
chicago: Theurkauff, I., C. Cottin-Bizonne, Jérémie A Palacci, C. Ybert, and L.
Bocquet. “Dynamic Clustering in Active Colloidal Suspensions with Chemical Signaling.”
Physical Review Letters. American Physical Society , 2012. https://doi.org/10.1103/physrevlett.108.268303.
ieee: I. Theurkauff, C. Cottin-Bizonne, J. A. Palacci, C. Ybert, and L. Bocquet,
“Dynamic clustering in active colloidal suspensions with chemical signaling,”
Physical Review Letters, vol. 108, no. 26. American Physical Society ,
2012.
ista: Theurkauff I, Cottin-Bizonne C, Palacci JA, Ybert C, Bocquet L. 2012. Dynamic
clustering in active colloidal suspensions with chemical signaling. Physical Review
Letters. 108(26), 268303.
mla: Theurkauff, I., et al. “Dynamic Clustering in Active Colloidal Suspensions
with Chemical Signaling.” Physical Review Letters, vol. 108, no. 26, 268303,
American Physical Society , 2012, doi:10.1103/physrevlett.108.268303.
short: I. Theurkauff, C. Cottin-Bizonne, J.A. Palacci, C. Ybert, L. Bocquet, Physical
Review Letters 108 (2012).
date_created: 2021-01-19T10:26:59Z
date_published: 2012-06-29T00:00:00Z
date_updated: 2023-02-23T13:46:45Z
day: '29'
doi: 10.1103/physrevlett.108.268303
extern: '1'
external_id:
arxiv:
- '1202.6264'
pmid:
- '23005020'
intvolume: ' 108'
issue: '26'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1202.6264
month: '06'
oa: 1
oa_version: Preprint
pmid: 1
publication: Physical Review Letters
publication_identifier:
eissn:
- '10797114'
issn:
- '00319007'
publication_status: published
publisher: 'American Physical Society '
quality_controlled: '1'
scopus_import: '1'
status: public
title: Dynamic clustering in active colloidal suspensions with chemical signaling
type: journal_article
user_id: D865714E-FA4E-11E9-B85B-F5C5E5697425
volume: 108
year: '2012'
...
---
_id: '9049'
abstract:
- lang: eng
text: 'Diffusiophoretic motion of colloids and macromolecules under salt gradients
exhibits a logarithmic-sensing, i.e. the particle velocity is proportional to
the spatial gradient of the logarithm of the salt concentration, as VDP = DDP∇logc.
Here we explore experimentally the implications of this log-sensing behavior,
on the basis of a hydrogel microfluidic device allowing to build spatially and
temporally controlled gradients. We first demonstrate that the non-linearity of
the salt-taxis leads to a trapping of particles under concentration gradient oscillations
via a rectification of the motion. As an alternative, we make use of the high
sensitivity of diffusiophoretic migration to vanishing salt concentration due
to the log-sensing: in a counter-intuitive way, a vanishing gradient can lead
to measurable velocity provided that the solute concentration is low enough, thus
keeping ∇c/c finite. We show that this leads to a strong segregation of particles
in osmotic shock configuration, resulting from a step change of the salt concentration
at the boundaries. These various phenomena are rationalized on the basis of a
theoretical description for the time-dependent Smoluchowski equation for the colloidal
density.'
article_processing_charge: No
article_type: original
author:
- first_name: Jérémie A
full_name: Palacci, Jérémie A
id: 8fb92548-2b22-11eb-b7c1-a3f0d08d7c7d
last_name: Palacci
orcid: 0000-0002-7253-9465
- first_name: Cécile
full_name: Cottin-Bizonne, Cécile
last_name: Cottin-Bizonne
- first_name: Christophe
full_name: Ybert, Christophe
last_name: Ybert
- first_name: Lydéric
full_name: Bocquet, Lydéric
last_name: Bocquet
citation:
ama: Palacci JA, Cottin-Bizonne C, Ybert C, Bocquet L. Osmotic traps for colloids
and macromolecules based on logarithmic sensing in salt taxis. Soft Matter.
2012;8(4):980-994. doi:10.1039/c1sm06395b
apa: Palacci, J. A., Cottin-Bizonne, C., Ybert, C., & Bocquet, L. (2012). Osmotic
traps for colloids and macromolecules based on logarithmic sensing in salt taxis.
Soft Matter. Royal Society of Chemistry. https://doi.org/10.1039/c1sm06395b
chicago: Palacci, Jérémie A, Cécile Cottin-Bizonne, Christophe Ybert, and Lydéric
Bocquet. “Osmotic Traps for Colloids and Macromolecules Based on Logarithmic Sensing
in Salt Taxis.” Soft Matter. Royal Society of Chemistry, 2012. https://doi.org/10.1039/c1sm06395b.
ieee: J. A. Palacci, C. Cottin-Bizonne, C. Ybert, and L. Bocquet, “Osmotic traps
for colloids and macromolecules based on logarithmic sensing in salt taxis,” Soft
Matter, vol. 8, no. 4. Royal Society of Chemistry, pp. 980–994, 2012.
ista: Palacci JA, Cottin-Bizonne C, Ybert C, Bocquet L. 2012. Osmotic traps for
colloids and macromolecules based on logarithmic sensing in salt taxis. Soft Matter.
8(4), 980–994.
mla: Palacci, Jérémie A., et al. “Osmotic Traps for Colloids and Macromolecules
Based on Logarithmic Sensing in Salt Taxis.” Soft Matter, vol. 8, no. 4,
Royal Society of Chemistry, 2012, pp. 980–94, doi:10.1039/c1sm06395b.
short: J.A. Palacci, C. Cottin-Bizonne, C. Ybert, L. Bocquet, Soft Matter 8 (2012)
980–994.
date_created: 2021-02-01T13:43:10Z
date_published: 2012-01-28T00:00:00Z
date_updated: 2023-02-23T13:47:31Z
day: '28'
doi: 10.1039/c1sm06395b
extern: '1'
intvolume: ' 8'
issue: '4'
language:
- iso: eng
month: '01'
oa_version: None
page: 980-994
publication: Soft Matter
publication_identifier:
eissn:
- 1744-6848
issn:
- 1744-683X
publication_status: published
publisher: Royal Society of Chemistry
quality_controlled: '1'
scopus_import: '1'
status: public
title: Osmotic traps for colloids and macromolecules based on logarithmic sensing
in salt taxis
type: journal_article
user_id: D865714E-FA4E-11E9-B85B-F5C5E5697425
volume: 8
year: '2012'
...
---
_id: '91'
abstract:
- lang: eng
text: 'We demonstrate how to appropriately estimate the zero-frequency (static)
hyperpolarizability of an organic molecule from its charge distribution, and we
explore applications of these estimates for identifying and evaluating new organic
nonlinear optical (NLO) materials. First, we calculate hyperpolarizabilities from
Hartree-Fock-derived charge distributions and find order-of-magnitude agreement
with experimental values. We show that these simple arithmetic calculations will
enable systematic searches for new organic NLO molecules. Second, we derive hyperpolarizabilities
from crystallographic data using a multipolar charge-density analysis and find
good agreement with empirical calculations. This demonstrates an experimental
determination of the full static hyperpolarizability tensor in a solid-state sample. '
acknowledgement: This work was supported by The Winston Churchill Foundation of the
United States (A.P.H., M.A.B.F., D.D.H.), The Royal Society via a University Research
Fellowship (J.M.C.), and the University of New Brunswick via The Vice-Chancellor’s
Research Chair (J.M.C.).
article_number: '033512'
author:
- first_name: Andrew P
full_name: Higginbotham, Andrew P
id: 4AD6785A-F248-11E8-B48F-1D18A9856A87
last_name: Higginbotham
orcid: 0000-0003-2607-2363
- first_name: Jacqueline
full_name: Cole, Jacqueline
last_name: Cole
- first_name: Martin
full_name: Blood Forsythe, Martin
last_name: Blood Forsythe
- first_name: Daniel
full_name: Hickstein, Daniel
last_name: Hickstein
citation:
ama: Higginbotham AP, Cole J, Blood Forsythe M, Hickstein D. Identifying and evaluating
organic nonlinear optical materials via molecular moments. Journal of Applied
Physics. 2012;111(3). doi:10.1063/1.3678593
apa: Higginbotham, A. P., Cole, J., Blood Forsythe, M., & Hickstein, D. (2012).
Identifying and evaluating organic nonlinear optical materials via molecular moments.
Journal of Applied Physics. American Institute of Physics. https://doi.org/10.1063/1.3678593
chicago: Higginbotham, Andrew P, Jacqueline Cole, Martin Blood Forsythe, and Daniel
Hickstein. “Identifying and Evaluating Organic Nonlinear Optical Materials via
Molecular Moments.” Journal of Applied Physics. American Institute of Physics,
2012. https://doi.org/10.1063/1.3678593.
ieee: A. P. Higginbotham, J. Cole, M. Blood Forsythe, and D. Hickstein, “Identifying
and evaluating organic nonlinear optical materials via molecular moments,” Journal
of Applied Physics, vol. 111, no. 3. American Institute of Physics, 2012.
ista: Higginbotham AP, Cole J, Blood Forsythe M, Hickstein D. 2012. Identifying
and evaluating organic nonlinear optical materials via molecular moments. Journal
of Applied Physics. 111(3), 033512.
mla: Higginbotham, Andrew P., et al. “Identifying and Evaluating Organic Nonlinear
Optical Materials via Molecular Moments.” Journal of Applied Physics, vol.
111, no. 3, 033512, American Institute of Physics, 2012, doi:10.1063/1.3678593.
short: A.P. Higginbotham, J. Cole, M. Blood Forsythe, D. Hickstein, Journal of Applied
Physics 111 (2012).
date_created: 2018-12-11T11:44:35Z
date_published: 2012-02-07T00:00:00Z
date_updated: 2021-01-12T08:21:50Z
day: '07'
doi: 10.1063/1.3678593
extern: '1'
intvolume: ' 111'
issue: '3'
language:
- iso: eng
month: '02'
oa_version: None
publication: Journal of Applied Physics
publication_status: published
publisher: American Institute of Physics
publist_id: '7963'
quality_controlled: '1'
status: public
title: Identifying and evaluating organic nonlinear optical materials via molecular
moments
type: journal_article
user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87
volume: 111
year: '2012'
...
---
_id: '9142'
abstract:
- lang: eng
text: "In models of radiative–convective equilibrium it is known that convection
can spontaneously aggregate into one single localized moist region if the domain
is large enough. The large changes in the mean climate state and radiative fluxes
accompanying this self-aggregation raise questions as to what simulations at lower
resolutions with parameterized convection, in similar homogeneous geometries,
should be expected to produce to be considered successful in mimicking a cloud-resolving
model.\r\nThe authors investigate this self-aggregation in a nonrotating, three-dimensional
cloud-resolving model on a square domain without large-scale forcing. It is found
that self-aggregation is sensitive not only to the domain size, but also to the
horizontal resolution. With horizontally homogeneous initial conditions, convective
aggregation only occurs on domains larger than about 200km and with resolutions
coarser than about 2km in the model examined. The system exhibits hysteresis,
so that with aggregated initial conditions, convection remains aggregated even
at our finest resolution, 500m, as long as the domain is greater than 200–300km.\r\nThe
sensitivity of self-aggregation to resolution and domain size in this model is
due to the sensitivity of the distribution of low clouds to these two parameters.
Indeed, the mechanism responsible for the aggregation of convection is the dynamical
response to the longwave radiative cooling from low clouds. Strong longwave cooling
near cloud top in dry regions forces downward motion, which by continuity generates
inflow near cloud top and near-surface outflow from dry regions. This circulation
results in the net export of moist static energy from regions with low moist static
energy, yielding a positive feedback."
article_processing_charge: No
article_type: original
author:
- first_name: Caroline J
full_name: Muller, Caroline J
id: f978ccb0-3f7f-11eb-b193-b0e2bd13182b
last_name: Muller
orcid: 0000-0001-5836-5350
- first_name: Isaac M.
full_name: Held, Isaac M.
last_name: Held
citation:
ama: Muller CJ, Held IM. Detailed investigation of the self-aggregation of convection
in cloud-resolving simulations. Journal of the Atmospheric Sciences. 2012;69(8):2551-2565.
doi:10.1175/jas-d-11-0257.1
apa: Muller, C. J., & Held, I. M. (2012). Detailed investigation of the self-aggregation
of convection in cloud-resolving simulations. Journal of the Atmospheric Sciences.
American Meteorological Society. https://doi.org/10.1175/jas-d-11-0257.1
chicago: Muller, Caroline J, and Isaac M. Held. “Detailed Investigation of the Self-Aggregation
of Convection in Cloud-Resolving Simulations.” Journal of the Atmospheric Sciences.
American Meteorological Society, 2012. https://doi.org/10.1175/jas-d-11-0257.1.
ieee: C. J. Muller and I. M. Held, “Detailed investigation of the self-aggregation
of convection in cloud-resolving simulations,” Journal of the Atmospheric Sciences,
vol. 69, no. 8. American Meteorological Society, pp. 2551–2565, 2012.
ista: Muller CJ, Held IM. 2012. Detailed investigation of the self-aggregation of
convection in cloud-resolving simulations. Journal of the Atmospheric Sciences.
69(8), 2551–2565.
mla: Muller, Caroline J., and Isaac M. Held. “Detailed Investigation of the Self-Aggregation
of Convection in Cloud-Resolving Simulations.” Journal of the Atmospheric Sciences,
vol. 69, no. 8, American Meteorological Society, 2012, pp. 2551–65, doi:10.1175/jas-d-11-0257.1.
short: C.J. Muller, I.M. Held, Journal of the Atmospheric Sciences 69 (2012) 2551–2565.
date_created: 2021-02-15T14:39:03Z
date_published: 2012-08-01T00:00:00Z
date_updated: 2022-01-24T13:49:41Z
day: '01'
doi: 10.1175/jas-d-11-0257.1
extern: '1'
intvolume: ' 69'
issue: '8'
keyword:
- Atmospheric Science
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1175/JAS-D-11-0257.1
month: '08'
oa: 1
oa_version: Published Version
page: 2551-2565
publication: Journal of the Atmospheric Sciences
publication_identifier:
issn:
- 0022-4928
- 1520-0469
publication_status: published
publisher: American Meteorological Society
quality_controlled: '1'
status: public
title: Detailed investigation of the self-aggregation of convection in cloud-resolving
simulations
type: journal_article
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
volume: 69
year: '2012'
...
---
_id: '922'
abstract:
- lang: eng
text: 'We study theoretically the morphologies of biological tubes affected by various
pathologies. When epithelial cells grow, the negative tension produced by their
division provokes a buckling instability. Several shapes are investigated: varicose,
dilated, sinuous, or sausagelike. They are all found in pathologies of tracheal,
renal tubes, or arteries. The final shape depends crucially on the mechanical
parameters of the tissues: Young''s modulus, wall-to-lumen ratio, homeostatic
pressure. We argue that since tissues must be in quasistatic mechanical equilibrium,
abnormal shapes convey information as to what causes the pathology. We calculate
a phase diagram of tubular instabilities which could be a helpful guide for investigating
the underlying genetic regulation.'
article_processing_charge: No
arxiv: 1
author:
- first_name: Edouard B
full_name: Hannezo, Edouard B
id: 3A9DB764-F248-11E8-B48F-1D18A9856A87
last_name: Hannezo
orcid: 0000-0001-6005-1561
- first_name: Jacques
full_name: Prost, Jacques
last_name: Prost
- first_name: Jean
full_name: Joanny, Jean
last_name: Joanny
citation:
ama: Hannezo EB, Prost J, Joanny J. Mechanical instabilities of biological tubes.
Physical Review Letters. 2012;109(1). doi:10.1103/PhysRevLett.109.018101
apa: Hannezo, E. B., Prost, J., & Joanny, J. (2012). Mechanical instabilities
of biological tubes. Physical Review Letters. American Physical Society.
https://doi.org/10.1103/PhysRevLett.109.018101
chicago: Hannezo, Edouard B, Jacques Prost, and Jean Joanny. “Mechanical Instabilities
of Biological Tubes.” Physical Review Letters. American Physical Society,
2012. https://doi.org/10.1103/PhysRevLett.109.018101.
ieee: E. B. Hannezo, J. Prost, and J. Joanny, “Mechanical instabilities of biological
tubes,” Physical Review Letters, vol. 109, no. 1. American Physical Society,
2012.
ista: Hannezo EB, Prost J, Joanny J. 2012. Mechanical instabilities of biological
tubes. Physical Review Letters. 109(1).
mla: Hannezo, Edouard B., et al. “Mechanical Instabilities of Biological Tubes.”
Physical Review Letters, vol. 109, no. 1, American Physical Society, 2012,
doi:10.1103/PhysRevLett.109.018101.
short: E.B. Hannezo, J. Prost, J. Joanny, Physical Review Letters 109 (2012).
date_created: 2018-12-11T11:49:13Z
date_published: 2012-07-03T00:00:00Z
date_updated: 2021-01-12T08:21:56Z
day: '03'
doi: 10.1103/PhysRevLett.109.018101
extern: '1'
external_id:
arxiv:
- '1207.1516'
intvolume: ' 109'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1207.1516
month: '07'
oa: 1
oa_version: Preprint
publication: Physical Review Letters
publication_status: published
publisher: American Physical Society
publist_id: '6519'
status: public
title: Mechanical instabilities of biological tubes
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 109
year: '2012'
...
---
_id: '7074'
abstract:
- lang: eng
text: The Seebeck coefficients, electrical resistivities, total thermal conductivities,
and magnetization are reported for temperatures between 5 and 350 K for n-type
Bi0.88Sb0.12 nano-composite alloys made by Ho-doping at the 0, 1, and 3 % atomic
levels. The alloys were prepared using a dc hot-pressing method, and are shown
to be single phase for both Ho contents with grain sizes on the average of 900
nm. We find the parent compound has a maximum of ZT = 0.28 at 231 K, while doping
1 % Ho increases the maximum ZT to 0.31 at 221 K and the 3 % doped sample suppresses
the maximum ZT = 0.24 at a temperature of 260 K.
article_processing_charge: No
article_type: original
author:
- first_name: K. C.
full_name: Lukas, K. C.
last_name: Lukas
- first_name: G.
full_name: Joshi, G.
last_name: Joshi
- first_name: Kimberly A
full_name: Modic, Kimberly A
id: 13C26AC0-EB69-11E9-87C6-5F3BE6697425
last_name: Modic
orcid: 0000-0001-9760-3147
- first_name: Z. F.
full_name: Ren, Z. F.
last_name: Ren
- first_name: C. P.
full_name: Opeil, C. P.
last_name: Opeil
citation:
ama: Lukas KC, Joshi G, Modic KA, Ren ZF, Opeil CP. Thermoelectric properties of
Ho-doped Bi0.88Sb0.12. Journal of Materials Science. 2012;47(15):5729-5734.
doi:10.1007/s10853-012-6463-6
apa: Lukas, K. C., Joshi, G., Modic, K. A., Ren, Z. F., & Opeil, C. P. (2012).
Thermoelectric properties of Ho-doped Bi0.88Sb0.12. Journal of Materials Science.
Springer Nature. https://doi.org/10.1007/s10853-012-6463-6
chicago: Lukas, K. C., G. Joshi, Kimberly A Modic, Z. F. Ren, and C. P. Opeil. “Thermoelectric
Properties of Ho-Doped Bi0.88Sb0.12.” Journal of Materials Science. Springer
Nature, 2012. https://doi.org/10.1007/s10853-012-6463-6.
ieee: K. C. Lukas, G. Joshi, K. A. Modic, Z. F. Ren, and C. P. Opeil, “Thermoelectric
properties of Ho-doped Bi0.88Sb0.12,” Journal of Materials Science, vol.
47, no. 15. Springer Nature, pp. 5729–5734, 2012.
ista: Lukas KC, Joshi G, Modic KA, Ren ZF, Opeil CP. 2012. Thermoelectric properties
of Ho-doped Bi0.88Sb0.12. Journal of Materials Science. 47(15), 5729–5734.
mla: Lukas, K. C., et al. “Thermoelectric Properties of Ho-Doped Bi0.88Sb0.12.”
Journal of Materials Science, vol. 47, no. 15, Springer Nature, 2012, pp.
5729–34, doi:10.1007/s10853-012-6463-6.
short: K.C. Lukas, G. Joshi, K.A. Modic, Z.F. Ren, C.P. Opeil, Journal of Materials
Science 47 (2012) 5729–5734.
date_created: 2019-11-19T13:36:54Z
date_published: 2012-08-01T00:00:00Z
date_updated: 2021-01-12T08:11:43Z
day: '01'
doi: 10.1007/s10853-012-6463-6
extern: '1'
intvolume: ' 47'
issue: '15'
language:
- iso: eng
month: '08'
oa_version: None
page: 5729-5734
publication: Journal of Materials Science
publication_identifier:
eissn:
- 1573-4803
issn:
- 0022-2461
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
status: public
title: Thermoelectric properties of Ho-doped Bi0.88Sb0.12
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 47
year: '2012'
...
---
_id: '7308'
abstract:
- lang: eng
text: 'Carbon has been used widely as the basis of porous cathodes for nonaqueous
Li–O2 cells. However, the stability of carbon and the effect of carbon on electrolyte
decomposition in such cells are complex and depend on the hydrophobicity/hydrophilicity
of the carbon surface. Analyzing carbon cathodes, cycled in Li–O2 cells between
2 and 4 V, using acid treatment and Fenton’s reagent, and combined with differential
electrochemical mass spectrometry and FTIR, demonstrates the following: Carbon
is relatively stable below 3.5 V (vs Li/Li+) on discharge or charge, especially
so for hydrophobic carbon, but is unstable on charging above 3.5 V (in the presence
of Li2O2), oxidatively decomposing to form Li2CO3. Direct chemical reaction with
Li2O2 accounts for only a small proportion of the total carbon decomposition on
cycling. Carbon promotes electrolyte decomposition during discharge and charge
in a Li–O2 cell, giving rise to Li2CO3 and Li carboxylates (DMSO and tetraglyme
electrolytes). The Li2CO3 and Li carboxylates present at the end of discharge
and those that form on charge result in polarization on the subsequent charge.
Li2CO3 (derived from carbon and from the electrolyte) as well as the Li carboxylates
(derived from the electrolyte) decompose and form on charging. Oxidation of Li2CO3
on charging to ∼4 V is incomplete; Li2CO3 accumulates on cycling resulting in
electrode passivation and capacity fading. Hydrophilic carbon is less stable and
more catalytically active toward electrolyte decomposition than carbon with a
hydrophobic surface. If the Li–O2 cell could be charged at or below 3.5 V, then
carbon may be relatively stable, however, its ability to promote electrolyte decomposition,
presenting problems for its use in a practical Li–O2 battery. The results emphasize
that stable cycling of Li2O2 at the cathode in a Li–O2 cell depends on the synergy
between electrolyte and electrode; the stability of the electrode and the electrolyte
cannot be considered in isolation.'
article_processing_charge: No
article_type: original
author:
- first_name: Muhammed M.
full_name: Ottakam Thotiyl, Muhammed M.
last_name: Ottakam Thotiyl
- first_name: Stefan Alexander
full_name: Freunberger, Stefan Alexander
id: A8CA28E6-CE23-11E9-AD2D-EC27E6697425
last_name: Freunberger
orcid: 0000-0003-2902-5319
- first_name: Zhangquan
full_name: Peng, Zhangquan
last_name: Peng
- first_name: Peter G.
full_name: Bruce, Peter G.
last_name: Bruce
citation:
ama: Ottakam Thotiyl MM, Freunberger SA, Peng Z, Bruce PG. The carbon electrode
in nonaqueous Li–O2 cells. Journal of the American Chemical Society. 2012;135(1):494-500.
doi:10.1021/ja310258x
apa: Ottakam Thotiyl, M. M., Freunberger, S. A., Peng, Z., & Bruce, P. G. (2012).
The carbon electrode in nonaqueous Li–O2 cells. Journal of the American Chemical
Society. ACS. https://doi.org/10.1021/ja310258x
chicago: Ottakam Thotiyl, Muhammed M., Stefan Alexander Freunberger, Zhangquan Peng,
and Peter G. Bruce. “The Carbon Electrode in Nonaqueous Li–O2 Cells.” Journal
of the American Chemical Society. ACS, 2012. https://doi.org/10.1021/ja310258x.
ieee: M. M. Ottakam Thotiyl, S. A. Freunberger, Z. Peng, and P. G. Bruce, “The carbon
electrode in nonaqueous Li–O2 cells,” Journal of the American Chemical Society,
vol. 135, no. 1. ACS, pp. 494–500, 2012.
ista: Ottakam Thotiyl MM, Freunberger SA, Peng Z, Bruce PG. 2012. The carbon electrode
in nonaqueous Li–O2 cells. Journal of the American Chemical Society. 135(1), 494–500.
mla: Ottakam Thotiyl, Muhammed M., et al. “The Carbon Electrode in Nonaqueous Li–O2
Cells.” Journal of the American Chemical Society, vol. 135, no. 1, ACS,
2012, pp. 494–500, doi:10.1021/ja310258x.
short: M.M. Ottakam Thotiyl, S.A. Freunberger, Z. Peng, P.G. Bruce, Journal of the
American Chemical Society 135 (2012) 494–500.
date_created: 2020-01-15T12:18:57Z
date_published: 2012-11-28T00:00:00Z
date_updated: 2021-01-12T08:12:56Z
day: '28'
doi: 10.1021/ja310258x
extern: '1'
intvolume: ' 135'
issue: '1'
language:
- iso: eng
month: '11'
oa_version: None
page: 494-500
publication: Journal of the American Chemical Society
publication_identifier:
issn:
- 0002-7863
- 1520-5126
publication_status: published
publisher: ACS
quality_controlled: '1'
status: public
title: The carbon electrode in nonaqueous Li–O2 cells
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 135
year: '2012'
...
---
_id: '7309'
abstract:
- lang: eng
text: Energy‐storage technologies, including electrical double‐layer capacitors
and rechargeable batteries, have attracted significant attention for applications
in portable electronic devices, electric vehicles, bulk electricity storage at
power stations, and “load leveling” of renewable sources, such as solar energy
and wind power. Transforming lithium batteries and electric double‐layer capacitors
requires a step change in the science underpinning these devices, including the
discovery of new materials, new electrochemistry, and an increased understanding
of the processes on which the devices depend. The Review will consider some of
the current scientific issues underpinning lithium batteries and electric double‐layer
capacitors.
article_processing_charge: No
article_type: original
author:
- first_name: Nam-Soon
full_name: Choi, Nam-Soon
last_name: Choi
- first_name: Zonghai
full_name: Chen, Zonghai
last_name: Chen
- first_name: Stefan Alexander
full_name: Freunberger, Stefan Alexander
id: A8CA28E6-CE23-11E9-AD2D-EC27E6697425
last_name: Freunberger
orcid: 0000-0003-2902-5319
- first_name: Xiulei
full_name: Ji, Xiulei
last_name: Ji
- first_name: Yang-Kook
full_name: Sun, Yang-Kook
last_name: Sun
- first_name: Khalil
full_name: Amine, Khalil
last_name: Amine
- first_name: Gleb
full_name: Yushin, Gleb
last_name: Yushin
- first_name: Linda F.
full_name: Nazar, Linda F.
last_name: Nazar
- first_name: Jaephil
full_name: Cho, Jaephil
last_name: Cho
- first_name: Peter G.
full_name: Bruce, Peter G.
last_name: Bruce
citation:
ama: Choi N-S, Chen Z, Freunberger SA, et al. Challenges facing Lithium batteries
and electrical double-layer capacitors. Angewandte Chemie International Edition.
2012;51(40):9994-10024. doi:10.1002/anie.201201429
apa: Choi, N.-S., Chen, Z., Freunberger, S. A., Ji, X., Sun, Y.-K., Amine, K., …
Bruce, P. G. (2012). Challenges facing Lithium batteries and electrical double-layer
capacitors. Angewandte Chemie International Edition. Wiley. https://doi.org/10.1002/anie.201201429
chicago: Choi, Nam-Soon, Zonghai Chen, Stefan Alexander Freunberger, Xiulei Ji,
Yang-Kook Sun, Khalil Amine, Gleb Yushin, Linda F. Nazar, Jaephil Cho, and Peter
G. Bruce. “Challenges Facing Lithium Batteries and Electrical Double-Layer Capacitors.”
Angewandte Chemie International Edition. Wiley, 2012. https://doi.org/10.1002/anie.201201429.
ieee: N.-S. Choi et al., “Challenges facing Lithium batteries and electrical
double-layer capacitors,” Angewandte Chemie International Edition, vol.
51, no. 40. Wiley, pp. 9994–10024, 2012.
ista: Choi N-S, Chen Z, Freunberger SA, Ji X, Sun Y-K, Amine K, Yushin G, Nazar
LF, Cho J, Bruce PG. 2012. Challenges facing Lithium batteries and electrical
double-layer capacitors. Angewandte Chemie International Edition. 51(40), 9994–10024.
mla: Choi, Nam-Soon, et al. “Challenges Facing Lithium Batteries and Electrical
Double-Layer Capacitors.” Angewandte Chemie International Edition, vol.
51, no. 40, Wiley, 2012, pp. 9994–10024, doi:10.1002/anie.201201429.
short: N.-S. Choi, Z. Chen, S.A. Freunberger, X. Ji, Y.-K. Sun, K. Amine, G. Yushin,
L.F. Nazar, J. Cho, P.G. Bruce, Angewandte Chemie International Edition 51 (2012)
9994–10024.
date_created: 2020-01-15T12:19:11Z
date_published: 2012-10-01T00:00:00Z
date_updated: 2021-01-12T08:12:56Z
day: '01'
doi: 10.1002/anie.201201429
extern: '1'
intvolume: ' 51'
issue: '40'
language:
- iso: eng
month: '10'
oa_version: None
page: 9994-10024
publication: Angewandte Chemie International Edition
publication_identifier:
issn:
- 1433-7851
publication_status: published
publisher: Wiley
quality_controlled: '1'
status: public
title: Challenges facing Lithium batteries and electrical double-layer capacitors
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 51
year: '2012'
...
---
_id: '7310'
abstract:
- lang: eng
text: The rechargeable nonaqueous lithium-air (Li-O2) battery is receiving a great
deal of interest because, theoretically, its specific energy far exceeds the best
that can be achieved with lithium-ion cells. Operation of the rechargeable Li-O2
battery depends critically on repeated and highly reversible formation/decomposition
of lithium peroxide (Li2O2) at the cathode upon cycling. Here, we show that this
process is possible with the use of a dimethyl sulfoxide electrolyte and a porous
gold electrode (95% capacity retention from cycles 1 to 100), whereas previously
only partial Li2O2 formation/decomposition and limited cycling could occur. Furthermore,
we present data indicating that the kinetics of Li2O2 oxidation on charge is approximately
10 times faster than on carbon electrodes.
article_processing_charge: No
article_type: original
author:
- first_name: Z.
full_name: Peng, Z.
last_name: Peng
- first_name: Stefan Alexander
full_name: Freunberger, Stefan Alexander
id: A8CA28E6-CE23-11E9-AD2D-EC27E6697425
last_name: Freunberger
orcid: 0000-0003-2902-5319
- first_name: Y.
full_name: Chen, Y.
last_name: Chen
- first_name: P. G.
full_name: Bruce, P. G.
last_name: Bruce
citation:
ama: Peng Z, Freunberger SA, Chen Y, Bruce PG. A reversible and higher-rate Li-O2
battery. Science. 2012;337(6094):563-566. doi:10.1126/science.1223985
apa: Peng, Z., Freunberger, S. A., Chen, Y., & Bruce, P. G. (2012). A reversible
and higher-rate Li-O2 battery. Science. AAAS. https://doi.org/10.1126/science.1223985
chicago: Peng, Z., Stefan Alexander Freunberger, Y. Chen, and P. G. Bruce. “A Reversible
and Higher-Rate Li-O2 Battery.” Science. AAAS, 2012. https://doi.org/10.1126/science.1223985.
ieee: Z. Peng, S. A. Freunberger, Y. Chen, and P. G. Bruce, “A reversible and higher-rate
Li-O2 battery,” Science, vol. 337, no. 6094. AAAS, pp. 563–566, 2012.
ista: Peng Z, Freunberger SA, Chen Y, Bruce PG. 2012. A reversible and higher-rate
Li-O2 battery. Science. 337(6094), 563–566.
mla: Peng, Z., et al. “A Reversible and Higher-Rate Li-O2 Battery.” Science,
vol. 337, no. 6094, AAAS, 2012, pp. 563–66, doi:10.1126/science.1223985.
short: Z. Peng, S.A. Freunberger, Y. Chen, P.G. Bruce, Science 337 (2012) 563–566.
date_created: 2020-01-15T12:19:23Z
date_published: 2012-08-03T00:00:00Z
date_updated: 2021-01-12T08:12:57Z
day: '03'
doi: 10.1126/science.1223985
extern: '1'
intvolume: ' 337'
issue: '6094'
language:
- iso: eng
month: '08'
oa_version: None
page: 563-566
publication: Science
publication_identifier:
issn:
- 0036-8075
- 1095-9203
publication_status: published
publisher: AAAS
quality_controlled: '1'
status: public
title: A reversible and higher-rate Li-O2 battery
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 337
year: '2012'
...
---
_id: '7311'
abstract:
- lang: eng
text: Stability of the electrolyte toward reduced oxygen species generated at the
cathode is a crucial challenge for the rechargeable nonaqueous Li–O2 battery.
Here, we investigate dimethylformamide as the basis of an electrolyte. Although
reactions at the O2 cathode on the first discharge–charge cycle are dominated
by reversible Li2O2 formation/decomposition, there is also electrolyte decomposition,
which increases on cycling. The products of decomposition at the cathode on discharge
are Li2O2, Li2CO3, HCO2Li, CH3CO2Li, NO, H2O, and CO2. Li2CO3 accumulates in the
electrode with cycling. The stability of dimethylformamide toward reduced oxygen
species is insufficient for its use in the rechargeable nonaqueous Li–O2 battery.
article_processing_charge: No
article_type: original
author:
- first_name: Yuhui
full_name: Chen, Yuhui
last_name: Chen
- first_name: Stefan Alexander
full_name: Freunberger, Stefan Alexander
id: A8CA28E6-CE23-11E9-AD2D-EC27E6697425
last_name: Freunberger
orcid: 0000-0003-2902-5319
- first_name: Zhangquan
full_name: Peng, Zhangquan
last_name: Peng
- first_name: Fanny
full_name: Bardé, Fanny
last_name: Bardé
- first_name: Peter G.
full_name: Bruce, Peter G.
last_name: Bruce
citation:
ama: Chen Y, Freunberger SA, Peng Z, Bardé F, Bruce PG. Li–O2 battery with a dimethylformamide
electrolyte. Journal of the American Chemical Society. 2012;134(18):7952-7957.
doi:10.1021/ja302178w
apa: Chen, Y., Freunberger, S. A., Peng, Z., Bardé, F., & Bruce, P. G. (2012).
Li–O2 battery with a dimethylformamide electrolyte. Journal of the American
Chemical Society. ACS. https://doi.org/10.1021/ja302178w
chicago: Chen, Yuhui, Stefan Alexander Freunberger, Zhangquan Peng, Fanny Bardé,
and Peter G. Bruce. “Li–O2 Battery with a Dimethylformamide Electrolyte.” Journal
of the American Chemical Society. ACS, 2012. https://doi.org/10.1021/ja302178w.
ieee: Y. Chen, S. A. Freunberger, Z. Peng, F. Bardé, and P. G. Bruce, “Li–O2 battery
with a dimethylformamide electrolyte,” Journal of the American Chemical Society,
vol. 134, no. 18. ACS, pp. 7952–7957, 2012.
ista: Chen Y, Freunberger SA, Peng Z, Bardé F, Bruce PG. 2012. Li–O2 battery with
a dimethylformamide electrolyte. Journal of the American Chemical Society. 134(18),
7952–7957.
mla: Chen, Yuhui, et al. “Li–O2 Battery with a Dimethylformamide Electrolyte.” Journal
of the American Chemical Society, vol. 134, no. 18, ACS, 2012, pp. 7952–57,
doi:10.1021/ja302178w.
short: Y. Chen, S.A. Freunberger, Z. Peng, F. Bardé, P.G. Bruce, Journal of the
American Chemical Society 134 (2012) 7952–7957.
date_created: 2020-01-15T12:19:36Z
date_published: 2012-04-19T00:00:00Z
date_updated: 2021-01-12T08:12:58Z
day: '19'
doi: 10.1021/ja302178w
extern: '1'
intvolume: ' 134'
issue: '18'
language:
- iso: eng
month: '04'
oa_version: None
page: 7952-7957
publication: Journal of the American Chemical Society
publication_identifier:
issn:
- 0002-7863
- 1520-5126
publication_status: published
publisher: ACS
quality_controlled: '1'
status: public
title: Li–O2 battery with a dimethylformamide electrolyte
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 134
year: '2012'
...
---
_id: '762'
abstract:
- lang: eng
text: Decades of research in distributed computing have led to a variety of perspectives
on what it means for a concurrent algorithm to be efficient, depending on model
assumptions, progress guarantees, and complexity metrics. It is therefore natural
to ask whether one could compose algorithms that perform efficiently under different
conditions, so that the composition preserves the performance of the original
components when their conditions are met. In this paper, we evaluate the cost
of composing shared-memory algorithms. First, we formally define the notion of
safely composable algorithms and we show that every sequential type has a safely
composable implementation, as long as enough state is transferred between modules.
Since such generic implementations are inherently expensive, we present a more
general light-weight specification that allows the designer to transfer very little
state between modules, by taking advantage of the semantics of the implemented
object. Using this framework, we implement a composed longlived test-and-set object,
with the property that each of its modules is asymptotically optimal with respect
to the progress condition it ensures, while the entire implementation only uses
objects with consensus number at most two. Thus, we show that the overhead of
composition can be negligible in the case of some important shared-memory abstractions.
article_processing_charge: No
author:
- first_name: Dan-Adrian
full_name: Alistarh, Dan-Adrian
id: 4A899BFC-F248-11E8-B48F-1D18A9856A87
last_name: Alistarh
orcid: 0000-0003-3650-940X
- first_name: Rachid
full_name: Guerraoui, Rachid
last_name: Guerraoui
- first_name: Petr
full_name: Kuznetsov, Petr
last_name: Kuznetsov
- first_name: Giuliano
full_name: Losa, Giuliano
last_name: Losa
citation:
ama: 'Alistarh D-A, Guerraoui R, Kuznetsov P, Losa G. On the cost of composing shared-memory
algorithms. In: ACM; 2012:298-307. doi:10.1145/2312005.2312057'
apa: 'Alistarh, D.-A., Guerraoui, R., Kuznetsov, P., & Losa, G. (2012). On the
cost of composing shared-memory algorithms (pp. 298–307). Presented at the SPAA:
Symposium on Parallelism in Algorithms and Architectures, ACM. https://doi.org/10.1145/2312005.2312057'
chicago: Alistarh, Dan-Adrian, Rachid Guerraoui, Petr Kuznetsov, and Giuliano Losa.
“On the Cost of Composing Shared-Memory Algorithms,” 298–307. ACM, 2012. https://doi.org/10.1145/2312005.2312057.
ieee: 'D.-A. Alistarh, R. Guerraoui, P. Kuznetsov, and G. Losa, “On the cost of
composing shared-memory algorithms,” presented at the SPAA: Symposium on Parallelism
in Algorithms and Architectures, 2012, pp. 298–307.'
ista: 'Alistarh D-A, Guerraoui R, Kuznetsov P, Losa G. 2012. On the cost of composing
shared-memory algorithms. SPAA: Symposium on Parallelism in Algorithms and Architectures,
298–307.'
mla: Alistarh, Dan-Adrian, et al. On the Cost of Composing Shared-Memory Algorithms.
ACM, 2012, pp. 298–307, doi:10.1145/2312005.2312057.
short: D.-A. Alistarh, R. Guerraoui, P. Kuznetsov, G. Losa, in:, ACM, 2012, pp.
298–307.
conference:
name: 'SPAA: Symposium on Parallelism in Algorithms and Architectures'
date_created: 2018-12-11T11:48:22Z
date_published: 2012-01-01T00:00:00Z
date_updated: 2023-02-23T13:12:27Z
day: '01'
doi: 10.1145/2312005.2312057
extern: '1'
language:
- iso: eng
month: '01'
oa_version: None
page: 298 - 307
publication_status: published
publisher: ACM
publist_id: '6892'
status: public
title: On the cost of composing shared-memory algorithms
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2012'
...
---
_id: '763'
abstract:
- lang: eng
text: Renaming is a fundamental problem in distributed computing, in which a set
of n processes need to pick unique names from a namespace of limited size. In
this paper, we present the first early-deciding upper bounds for synchronous renaming,
in which the running time adapts to the actual number of failures f in the execution.
We show that, surprisingly, renaming can be solved in constant time if the number
of failures f is limited to O(√n), while for general f ≤ n - 1 renaming can always
be solved in O(log f) communication rounds. In the wait-free case, i.e. for f
= n - 1, our upper bounds match the Ω(log n) lower bound of Chaudhuri et al. [13].
acknowledgement: "Hagit Attiya - Supported in party by Israel Science Foundation (grant
number 1227/10).\r\nCorentin Travers - Additional supports from the ANR projects
ALADDIN and DISPLEXITY\r\n"
alternative_title:
- LNCS
article_processing_charge: No
author:
- first_name: Dan-Adrian
full_name: Alistarh, Dan-Adrian
id: 4A899BFC-F248-11E8-B48F-1D18A9856A87
last_name: Alistarh
orcid: 0000-0003-3650-940X
- first_name: Hagit
full_name: Attiya, Hagit
last_name: Attiya
- first_name: Rachid
full_name: Guerraoui, Rachid
last_name: Guerraoui
- first_name: Corentin
full_name: Travers, Corentin
last_name: Travers
citation:
ama: 'Alistarh D-A, Attiya H, Guerraoui R, Travers C. Early deciding synchronous
renaming in O(log f) rounds or less. In: Vol 7355 LNCS. Springer; 2012:195-206.
doi:10.1007/978-3-642-31104-8_17'
apa: 'Alistarh, D.-A., Attiya, H., Guerraoui, R., & Travers, C. (2012). Early
deciding synchronous renaming in O(log f) rounds or less (Vol. 7355 LNCS, pp.
195–206). Presented at the SIROCCO: Structural Information and Communication Complexity,
Springer. https://doi.org/10.1007/978-3-642-31104-8_17'
chicago: Alistarh, Dan-Adrian, Hagit Attiya, Rachid Guerraoui, and Corentin Travers.
“Early Deciding Synchronous Renaming in O(Log f) Rounds or Less,” 7355 LNCS:195–206.
Springer, 2012. https://doi.org/10.1007/978-3-642-31104-8_17.
ieee: 'D.-A. Alistarh, H. Attiya, R. Guerraoui, and C. Travers, “Early deciding
synchronous renaming in O(log f) rounds or less,” presented at the SIROCCO: Structural
Information and Communication Complexity, 2012, vol. 7355 LNCS, pp. 195–206.'
ista: 'Alistarh D-A, Attiya H, Guerraoui R, Travers C. 2012. Early deciding synchronous
renaming in O(log f) rounds or less. SIROCCO: Structural Information and Communication
Complexity, LNCS, vol. 7355 LNCS, 195–206.'
mla: Alistarh, Dan-Adrian, et al. Early Deciding Synchronous Renaming in O(Log
f) Rounds or Less. Vol. 7355 LNCS, Springer, 2012, pp. 195–206, doi:10.1007/978-3-642-31104-8_17.
short: D.-A. Alistarh, H. Attiya, R. Guerraoui, C. Travers, in:, Springer, 2012,
pp. 195–206.
conference:
name: 'SIROCCO: Structural Information and Communication Complexity'
date_created: 2018-12-11T11:48:22Z
date_published: 2012-01-01T00:00:00Z
date_updated: 2023-02-23T13:12:41Z
day: '01'
doi: 10.1007/978-3-642-31104-8_17
extern: '1'
language:
- iso: eng
month: '01'
oa_version: None
page: 195 - 206
publication_status: published
publisher: Springer
publist_id: '6893'
status: public
title: Early deciding synchronous renaming in O(log f) rounds or less
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 7355 LNCS
year: '2012'
...
---
_id: '764'
abstract:
- lang: eng
text: Set agreement is a fundamental problem in distributed computing in which processes
collectively choose a small subset of values from a larger set of proposals. The
impossibility of fault-tolerant set agreement in asynchronous networks is one
of the seminal results in distributed computing. In synchronous networks, too,
the complexity of set agreement has been a significant research challenge that
has now been resolved. Real systems, however, are neither purely synchronous nor
purely asynchronous. Rather, they tend to alternate between periods of synchrony
and periods of asynchrony. Nothing specific is known about the complexity of set
agreement in such a "partially synchronous" setting. In this paper,
we address this challenge, presenting the first (asymptotically) tight bound on
the complexity of set agreement in such systems. We introduce a novel technique
for simulating, in a fault-prone asynchronous shared memory, executions of an
asynchronous and failure-prone message-passing system in which some fragments
appear synchronous to some processes. We use this simulation technique to derive
a lower bound on the round complexity of set agreement in a partially synchronous
system by a reduction from asynchronous wait-free set agreement. Specifically,
we show that every set agreement protocol requires at least $\lfloor\frac t k
\rfloor + 2$ synchronous rounds to decide. We present an (asymptotically) matching
algorithm that relies on a distributed asynchrony detection mechanism to decide
as soon as possible during periods of synchrony. From these two results, we derive
the size of the minimal window of synchrony needed to solve set agreement. By
relating synchronous, asynchronous and partially synchronous environments, our
simulation technique is of independent interest. In particular, it allows us to
obtain a new lower bound on the complexity of early deciding k-set agreement complementary
to that of Gafni et al. (in SIAM J. Comput. 40(1):63-78, 2011), and to re-derive
the combinatorial topology lower bound of Guerraoui et al. (in Theor. Comput.
Sci. 410(6-7):570-580, 2009) in an algorithmic way.
acknowledgement: "We would like to thank Hagit Attiya, Keren Censor-Hillel, and
the anonymous\r\nreviewers for their feedback on drafts of this paper.\r\nPart
of the work was performed as C. Travers was a Post-Doctoral Fellow at the Technion,
Haifa,\r\nsupported by the “Sam & Cecilia Neaman” Fellowship. Part of the work was
performed as S. Gilbert was\r\na Post-Doctoral Fellow at the Swiss Federal Institute
of Technology, Lausanne, Switzerland."
article_processing_charge: No
author:
- first_name: Dan-Adrian
full_name: Alistarh, Dan-Adrian
id: 4A899BFC-F248-11E8-B48F-1D18A9856A87
last_name: Alistarh
orcid: 0000-0003-3650-940X
- first_name: Seth
full_name: Gilbert, Seth
last_name: Gilbert
- first_name: Rachid
full_name: Guerraoui, Rachid
last_name: Guerraoui
- first_name: Corentin
full_name: Travers, Corentin
last_name: Travers
citation:
ama: 'Alistarh D-A, Gilbert S, Guerraoui R, Travers C. Of choices, failures and
asynchrony: the many faces of set agreement. Algorithmica (New York). 2012;62(1-2):595-629.
doi:10.1007/s00453-011-9581-7'
apa: 'Alistarh, D.-A., Gilbert, S., Guerraoui, R., & Travers, C. (2012). Of
choices, failures and asynchrony: the many faces of set agreement. Algorithmica
(New York). Springer. https://doi.org/10.1007/s00453-011-9581-7'
chicago: 'Alistarh, Dan-Adrian, Seth Gilbert, Rachid Guerraoui, and Corentin Travers.
“Of Choices, Failures and Asynchrony: The Many Faces of Set Agreement.” Algorithmica
(New York). Springer, 2012. https://doi.org/10.1007/s00453-011-9581-7.'
ieee: 'D.-A. Alistarh, S. Gilbert, R. Guerraoui, and C. Travers, “Of choices, failures
and asynchrony: the many faces of set agreement,” Algorithmica (New York),
vol. 62, no. 1–2. Springer, pp. 595–629, 2012.'
ista: 'Alistarh D-A, Gilbert S, Guerraoui R, Travers C. 2012. Of choices, failures
and asynchrony: the many faces of set agreement. Algorithmica (New York). 62(1–2),
595–629.'
mla: 'Alistarh, Dan-Adrian, et al. “Of Choices, Failures and Asynchrony: The Many
Faces of Set Agreement.” Algorithmica (New York), vol. 62, no. 1–2, Springer,
2012, pp. 595–629, doi:10.1007/s00453-011-9581-7.'
short: D.-A. Alistarh, S. Gilbert, R. Guerraoui, C. Travers, Algorithmica (New York)
62 (2012) 595–629.
date_created: 2018-12-11T11:48:23Z
date_published: 2012-02-01T00:00:00Z
date_updated: 2023-02-23T13:13:02Z
day: '01'
doi: 10.1007/s00453-011-9581-7
extern: '1'
intvolume: ' 62'
issue: 1-2
language:
- iso: eng
month: '02'
oa_version: None
page: 595 - 629
publication: Algorithmica (New York)
publication_status: published
publisher: Springer
publist_id: '6894'
status: public
title: 'Of choices, failures and asynchrony: the many faces of set agreement'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 62
year: '2012'
...
---
_id: '766'
abstract:
- lang: eng
text: 'Asynchronous task allocation is a fundamental problem in distributed computing
in which p asynchronous processes must execute a set of m tasks. Also known as
write-all or do-all, this problem been studied extensively, both independently
and as a key building block for various distributed algorithms. In this paper,
we break new ground on this classic problem: we introduce the To-Do Tree concurrent
data structure, which improves on the best known randomized and deterministic
upper bounds. In the presence of an adaptive adversary, the randomized To-Do Tree
algorithm has O(m + p log p log2 m) work complexity. We then show that there exists
a deterministic variant of the To-Do Tree algorithm with work complexity O(m +
p log5 m log2 max(m, p)). For all values of m and p, our algorithms are within
log factors of the Ω(m + p log p) lower bound for this problem. The key technical
ingredient in our results is a new approach for analyzing concurrent executions
against a strong adaptive scheduler. This technique allows us to handle the complex
dependencies between the processes'' coin flips and their scheduling, and to tightly
bound the work needed to perform subsets of the tasks.'
article_processing_charge: No
author:
- first_name: Dan-Adrian
full_name: Alistarh, Dan-Adrian
id: 4A899BFC-F248-11E8-B48F-1D18A9856A87
last_name: Alistarh
orcid: 0000-0003-3650-940X
- first_name: Michael
full_name: Bender, Michael
last_name: Bender
- first_name: Seth
full_name: Gilbert, Seth
last_name: Gilbert
- first_name: Rachid
full_name: Guerraoui, Rachid
last_name: Guerraoui
citation:
ama: 'Alistarh D-A, Bender M, Gilbert S, Guerraoui R. How to allocate tasks asynchronously.
In: IEEE; 2012:331-340. doi:10.1109/FOCS.2012.41'
apa: 'Alistarh, D.-A., Bender, M., Gilbert, S., & Guerraoui, R. (2012). How
to allocate tasks asynchronously (pp. 331–340). Presented at the FOCS: Foundations
of Computer Science, IEEE. https://doi.org/10.1109/FOCS.2012.41'
chicago: Alistarh, Dan-Adrian, Michael Bender, Seth Gilbert, and Rachid Guerraoui.
“How to Allocate Tasks Asynchronously,” 331–40. IEEE, 2012. https://doi.org/10.1109/FOCS.2012.41.
ieee: 'D.-A. Alistarh, M. Bender, S. Gilbert, and R. Guerraoui, “How to allocate
tasks asynchronously,” presented at the FOCS: Foundations of Computer Science,
2012, pp. 331–340.'
ista: 'Alistarh D-A, Bender M, Gilbert S, Guerraoui R. 2012. How to allocate tasks
asynchronously. FOCS: Foundations of Computer Science, 331–340.'
mla: Alistarh, Dan-Adrian, et al. How to Allocate Tasks Asynchronously. IEEE,
2012, pp. 331–40, doi:10.1109/FOCS.2012.41.
short: D.-A. Alistarh, M. Bender, S. Gilbert, R. Guerraoui, in:, IEEE, 2012, pp.
331–340.
conference:
name: 'FOCS: Foundations of Computer Science'
date_created: 2018-12-11T11:48:23Z
date_published: 2012-01-01T00:00:00Z
date_updated: 2023-02-23T13:13:27Z
day: '01'
doi: 10.1109/FOCS.2012.41
extern: '1'
language:
- iso: eng
month: '01'
oa_version: None
page: 331 - 340
publication_status: published
publisher: IEEE
publist_id: '6890'
status: public
title: How to allocate tasks asynchronously
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2012'
...
---
_id: '767'
abstract:
- lang: eng
text: Synchronous distributed algorithms are easier to design and prove correct
than algorithms that tolerate asynchrony. Yet, in the real world, networks experience
asynchrony and other timing anomalies. In this paper, we address the question
of how to efficiently transform an algorithm that relies on synchronous timing
into an algorithm that tolerates asynchronous executions. We introduce a transformation
technique from synchronous algorithms to indulgent algorithms (Guerraoui, in PODC,
pp. 289-297, 2000), which induces only a constant overhead in terms of time complexity
in well-behaved executions. Our technique is based on a new abstraction we call
an asynchrony detector, which the participating processes implement collectively.
The resulting transformation works for the class of colorless distributed tasks,
including consensus and set agreement. Interestingly, we also show that our technique
is relevant for colored tasks, by applying it to the renaming problem, to obtain
the first indulgent renaming algorithm.
acknowledgement: "Dan Alistarh was supported by the NCCR MICS Project. Corentin Travers
had additional support from INRIA team REGAL and ANR project SPREADS.\r\nThe authors
would like to thank Hagit Attiya and Nikola Kneževi\r\n ́\r\nc for their feed-\r\nback
on previous drafts of this paper, and the anonymous reviewers for their useful comments."
article_processing_charge: No
author:
- first_name: Dan-Adrian
full_name: Alistarh, Dan-Adrian
id: 4A899BFC-F248-11E8-B48F-1D18A9856A87
last_name: Alistarh
orcid: 0000-0003-3650-940X
- first_name: Seth
full_name: Gilbert, Seth
last_name: Gilbert
- first_name: Rachid
full_name: Guerraoui, Rachid
last_name: Guerraoui
- first_name: Corentin
full_name: Travers, Corentin
last_name: Travers
citation:
ama: Alistarh D-A, Gilbert S, Guerraoui R, Travers C. Generating Fast Indulgent
Algorithms. Theory of Computing Systems. 2012;51(4):404-424. doi:10.1007/s00224-012-9407-2
apa: Alistarh, D.-A., Gilbert, S., Guerraoui, R., & Travers, C. (2012). Generating
Fast Indulgent Algorithms. Theory of Computing Systems. Elsevier. https://doi.org/10.1007/s00224-012-9407-2
chicago: Alistarh, Dan-Adrian, Seth Gilbert, Rachid Guerraoui, and Corentin Travers.
“Generating Fast Indulgent Algorithms.” Theory of Computing Systems. Elsevier,
2012. https://doi.org/10.1007/s00224-012-9407-2.
ieee: D.-A. Alistarh, S. Gilbert, R. Guerraoui, and C. Travers, “Generating Fast
Indulgent Algorithms,” Theory of Computing Systems, vol. 51, no. 4. Elsevier,
pp. 404–424, 2012.
ista: Alistarh D-A, Gilbert S, Guerraoui R, Travers C. 2012. Generating Fast Indulgent
Algorithms. Theory of Computing Systems. 51(4), 404–424.
mla: Alistarh, Dan-Adrian, et al. “Generating Fast Indulgent Algorithms.” Theory
of Computing Systems, vol. 51, no. 4, Elsevier, 2012, pp. 404–24, doi:10.1007/s00224-012-9407-2.
short: D.-A. Alistarh, S. Gilbert, R. Guerraoui, C. Travers, Theory of Computing
Systems 51 (2012) 404–424.
date_created: 2018-12-11T11:48:23Z
date_published: 2012-01-01T00:00:00Z
date_updated: 2023-02-23T13:13:40Z
day: '01'
doi: 10.1007/s00224-012-9407-2
extern: '1'
intvolume: ' 51'
issue: '4'
language:
- iso: eng
month: '01'
oa_version: None
page: 404 - 424
publication: Theory of Computing Systems
publication_status: published
publisher: Elsevier
publist_id: '6891'
status: public
title: Generating Fast Indulgent Algorithms
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 51
year: '2012'
...
---
_id: '7748'
abstract:
- lang: eng
text: Female mate choice acts as an important evolutionary force, yet the influence
of the environment on both its expression and the selective pressures acting upon
it remains unknown. We found consistent heritable differences between females
in their choice of mate based on ornament size during a 25‐year study of a population
of collared flycatchers. However, the fitness consequences of mate choice were
dependent on environmental conditions experienced whilst breeding. Females breeding
with highly ornamented males experienced high relative fitness during dry summer
conditions, but low relative fitness during wetter years. Our results imply that
sexual selection within a population can be highly variable and dependent upon
the prevailing weather conditions experienced by individuals.
article_processing_charge: No
article_type: original
author:
- first_name: Matthew Richard
full_name: Robinson, Matthew Richard
id: E5D42276-F5DA-11E9-8E24-6303E6697425
last_name: Robinson
orcid: 0000-0001-8982-8813
- first_name: G.
full_name: Sander van Doorn, G.
last_name: Sander van Doorn
- first_name: Lars
full_name: Gustafsson, Lars
last_name: Gustafsson
- first_name: Anna
full_name: Qvarnström, Anna
last_name: Qvarnström
citation:
ama: Robinson MR, Sander van Doorn G, Gustafsson L, Qvarnström A. Environment-dependent
selection on mate choice in a natural population of birds. Ecology Letters.
2012;15(6):611-618. doi:10.1111/j.1461-0248.2012.01780.x
apa: Robinson, M. R., Sander van Doorn, G., Gustafsson, L., & Qvarnström, A.
(2012). Environment-dependent selection on mate choice in a natural population
of birds. Ecology Letters. Wiley. https://doi.org/10.1111/j.1461-0248.2012.01780.x
chicago: Robinson, Matthew Richard, G. Sander van Doorn, Lars Gustafsson, and Anna
Qvarnström. “Environment-Dependent Selection on Mate Choice in a Natural Population
of Birds.” Ecology Letters. Wiley, 2012. https://doi.org/10.1111/j.1461-0248.2012.01780.x.
ieee: M. R. Robinson, G. Sander van Doorn, L. Gustafsson, and A. Qvarnström, “Environment-dependent
selection on mate choice in a natural population of birds,” Ecology Letters,
vol. 15, no. 6. Wiley, pp. 611–618, 2012.
ista: Robinson MR, Sander van Doorn G, Gustafsson L, Qvarnström A. 2012. Environment-dependent
selection on mate choice in a natural population of birds. Ecology Letters. 15(6),
611–618.
mla: Robinson, Matthew Richard, et al. “Environment-Dependent Selection on Mate
Choice in a Natural Population of Birds.” Ecology Letters, vol. 15, no.
6, Wiley, 2012, pp. 611–18, doi:10.1111/j.1461-0248.2012.01780.x.
short: M.R. Robinson, G. Sander van Doorn, L. Gustafsson, A. Qvarnström, Ecology
Letters 15 (2012) 611–618.
date_created: 2020-04-30T11:01:07Z
date_published: 2012-06-01T00:00:00Z
date_updated: 2021-01-12T08:15:15Z
day: '01'
doi: 10.1111/j.1461-0248.2012.01780.x
extern: '1'
intvolume: ' 15'
issue: '6'
language:
- iso: eng
month: '06'
oa_version: None
page: 611-618
publication: Ecology Letters
publication_identifier:
issn:
- 1461-023X
publication_status: published
publisher: Wiley
quality_controlled: '1'
status: public
title: Environment-dependent selection on mate choice in a natural population of birds
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 15
year: '2012'
...
---
_id: '7749'
abstract:
- lang: eng
text: Although studies on laboratory species and natural populations of vertebrates
have shown reproduction to impair later performance, little is known of the age‐specific
associations between reproduction and survival, and how such findings apply to
the ageing of large, long‐lived species. Herein we develop a framework to examine
population‐level patterns of reproduction and survival across lifespan in long‐lived
organisms, and decompose those changes into individual‐level effects, and the
effects of age‐specific trade‐offs between fitness components. We apply this to
an extensive longitudinal dataset on female semi‐captive Asian timber elephants
(Elephas maximus) and report the first evidence of age‐specific fitness declines
that are driven by age‐specific associations between fitness components in a long‐lived
mammal. Associations between reproduction and survival are positive in early life,
but negative in later life with up to 71% of later‐life survival declines associated
with investing in the production of offspring within this population of this critically
endangered species.
article_processing_charge: No
article_type: original
author:
- first_name: Matthew Richard
full_name: Robinson, Matthew Richard
id: E5D42276-F5DA-11E9-8E24-6303E6697425
last_name: Robinson
orcid: 0000-0001-8982-8813
- first_name: Khyne U
full_name: Mar, Khyne U
last_name: Mar
- first_name: Virpi
full_name: Lummaa, Virpi
last_name: Lummaa
citation:
ama: Robinson MR, Mar KU, Lummaa V. Senescence and age-specific trade-offs between
reproduction and survival in female Asian elephants. Ecology Letters. 2012;15(3):260-266.
doi:10.1111/j.1461-0248.2011.01735.x
apa: Robinson, M. R., Mar, K. U., & Lummaa, V. (2012). Senescence and age-specific
trade-offs between reproduction and survival in female Asian elephants. Ecology
Letters. Wiley. https://doi.org/10.1111/j.1461-0248.2011.01735.x
chicago: Robinson, Matthew Richard, Khyne U Mar, and Virpi Lummaa. “Senescence and
Age-Specific Trade-Offs between Reproduction and Survival in Female Asian Elephants.”
Ecology Letters. Wiley, 2012. https://doi.org/10.1111/j.1461-0248.2011.01735.x.
ieee: M. R. Robinson, K. U. Mar, and V. Lummaa, “Senescence and age-specific trade-offs
between reproduction and survival in female Asian elephants,” Ecology Letters,
vol. 15, no. 3. Wiley, pp. 260–266, 2012.
ista: Robinson MR, Mar KU, Lummaa V. 2012. Senescence and age-specific trade-offs
between reproduction and survival in female Asian elephants. Ecology Letters.
15(3), 260–266.
mla: Robinson, Matthew Richard, et al. “Senescence and Age-Specific Trade-Offs between
Reproduction and Survival in Female Asian Elephants.” Ecology Letters,
vol. 15, no. 3, Wiley, 2012, pp. 260–66, doi:10.1111/j.1461-0248.2011.01735.x.
short: M.R. Robinson, K.U. Mar, V. Lummaa, Ecology Letters 15 (2012) 260–266.
date_created: 2020-04-30T11:01:26Z
date_published: 2012-03-01T00:00:00Z
date_updated: 2021-01-12T08:15:16Z
day: '01'
doi: 10.1111/j.1461-0248.2011.01735.x
extern: '1'
intvolume: ' 15'
issue: '3'
language:
- iso: eng
month: '03'
oa_version: None
page: 260-266
publication: Ecology Letters
publication_identifier:
issn:
- 1461-023X
publication_status: published
publisher: Wiley
quality_controlled: '1'
status: public
title: Senescence and age-specific trade-offs between reproduction and survival in
female Asian elephants
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 15
year: '2012'
...
---
_id: '7776'
abstract:
- lang: eng
text: We present an analysis of finite-size effects in jammed packings of N soft,
frictionless spheres at zero temperature. There is a 1/N correction to the discrete
jump in the contact number at the transition so that jammed packings exist only
above isostaticity. As a result, the canonical power-law scalings of the contact
number and elastic moduli break down at low pressure. These quantities exhibit
scaling collapse with a nontrivial scaling function, demonstrating that the jamming
transition can be considered a phase transition. Scaling is achieved as a function
of N in both two and three dimensions, indicating an upper critical dimension
of 2.
article_number: '095704'
article_processing_charge: No
article_type: original
author:
- first_name: Carl Peter
full_name: Goodrich, Carl Peter
id: EB352CD2-F68A-11E9-89C5-A432E6697425
last_name: Goodrich
orcid: 0000-0002-1307-5074
- first_name: Andrea J.
full_name: Liu, Andrea J.
last_name: Liu
- first_name: Sidney R.
full_name: Nagel, Sidney R.
last_name: Nagel
citation:
ama: Goodrich CP, Liu AJ, Nagel SR. Finite-size scaling at the jamming transition.
Physical Review Letters. 2012;109(9). doi:10.1103/physrevlett.109.095704
apa: Goodrich, C. P., Liu, A. J., & Nagel, S. R. (2012). Finite-size scaling
at the jamming transition. Physical Review Letters. American Physical Society.
https://doi.org/10.1103/physrevlett.109.095704
chicago: Goodrich, Carl Peter, Andrea J. Liu, and Sidney R. Nagel. “Finite-Size
Scaling at the Jamming Transition.” Physical Review Letters. American Physical
Society, 2012. https://doi.org/10.1103/physrevlett.109.095704.
ieee: C. P. Goodrich, A. J. Liu, and S. R. Nagel, “Finite-size scaling at the jamming
transition,” Physical Review Letters, vol. 109, no. 9. American Physical
Society, 2012.
ista: Goodrich CP, Liu AJ, Nagel SR. 2012. Finite-size scaling at the jamming transition.
Physical Review Letters. 109(9), 095704.
mla: Goodrich, Carl Peter, et al. “Finite-Size Scaling at the Jamming Transition.”
Physical Review Letters, vol. 109, no. 9, 095704, American Physical Society,
2012, doi:10.1103/physrevlett.109.095704.
short: C.P. Goodrich, A.J. Liu, S.R. Nagel, Physical Review Letters 109 (2012).
date_created: 2020-04-30T11:44:12Z
date_published: 2012-08-27T00:00:00Z
date_updated: 2021-01-12T08:15:27Z
day: '27'
doi: 10.1103/physrevlett.109.095704
extern: '1'
intvolume: ' 109'
issue: '9'
language:
- iso: eng
month: '08'
oa_version: None
publication: Physical Review Letters
publication_identifier:
issn:
- 0031-9007
- 1079-7114
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
status: public
title: Finite-size scaling at the jamming transition
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 109
year: '2012'
...
---
_id: '801'
abstract:
- lang: eng
text: Fungal cell walls frequently contain a polymer of mannose and galactose called
galactomannan. In the pathogenic filamentous fungus Aspergillus fumigatus, this
polysaccharide is made of a linear mannan backbone with side chains of galactofuran
and is anchored to the plasma membrane via a glycosylphosphatidylinositol or is
covalently linked to the cell wall. To date, the biosynthesis and significance
of this polysaccharide are unknown. The present data demonstrate that deletion
of the Golgi UDP-galactofuranose transporter GlfB or the GDP-mannose transporter
GmtA leads to the absence of galactofuran or galactomannan, respectively. This
indicates that the biosynthesis of galactomannan probably occurs in the lumen
of the Golgi apparatus and thus contrasts with the biosynthesis of other fungal
cell wall polysaccharides studied to date that takes place at the plasma membrane.
Transglycosylation of galactomannan from the membrane to the cell wall is hypothesized
because both the cell wall-bound and membrane-bound polysaccharide forms are affected
in the generated mutants. Considering the severe growth defect of the A. fumigatus
GmtA-deficient mutant, proving this paradigm might provide new targets for antifungal
therapy.
acknowledgement: This work was supported by the Deutsche Forschungsgemeinschaft.
article_processing_charge: No
article_type: original
author:
- first_name: Jakob
full_name: Engel, Jakob
last_name: Engel
- first_name: Philipp S
full_name: Schmalhorst, Philipp S
id: 309D50DA-F248-11E8-B48F-1D18A9856A87
last_name: Schmalhorst
orcid: 0000-0002-5795-0133
- first_name: Françoise
full_name: Routier, Françoise
last_name: Routier
citation:
ama: Engel J, Schmalhorst PS, Routier F. Biosynthesis of the fungal cell wall polysaccharide
galactomannan requires intraluminal GDP-mannose. Journal of Biological Chemistry.
2012;287(53):44418-44424. doi:10.1074/jbc.M112.398321
apa: Engel, J., Schmalhorst, P. S., & Routier, F. (2012). Biosynthesis of the
fungal cell wall polysaccharide galactomannan requires intraluminal GDP-mannose.
Journal of Biological Chemistry. American Society for Biochemistry and
Molecular Biology. https://doi.org/10.1074/jbc.M112.398321
chicago: Engel, Jakob, Philipp S Schmalhorst, and Françoise Routier. “Biosynthesis
of the Fungal Cell Wall Polysaccharide Galactomannan Requires Intraluminal GDP-Mannose.”
Journal of Biological Chemistry. American Society for Biochemistry and
Molecular Biology, 2012. https://doi.org/10.1074/jbc.M112.398321.
ieee: J. Engel, P. S. Schmalhorst, and F. Routier, “Biosynthesis of the fungal cell
wall polysaccharide galactomannan requires intraluminal GDP-mannose,” Journal
of Biological Chemistry, vol. 287, no. 53. American Society for Biochemistry
and Molecular Biology, pp. 44418–44424, 2012.
ista: Engel J, Schmalhorst PS, Routier F. 2012. Biosynthesis of the fungal cell
wall polysaccharide galactomannan requires intraluminal GDP-mannose. Journal of
Biological Chemistry. 287(53), 44418–44424.
mla: Engel, Jakob, et al. “Biosynthesis of the Fungal Cell Wall Polysaccharide Galactomannan
Requires Intraluminal GDP-Mannose.” Journal of Biological Chemistry, vol.
287, no. 53, American Society for Biochemistry and Molecular Biology, 2012, pp.
44418–24, doi:10.1074/jbc.M112.398321.
short: J. Engel, P.S. Schmalhorst, F. Routier, Journal of Biological Chemistry 287
(2012) 44418–44424.
date_created: 2018-12-11T11:48:34Z
date_published: 2012-12-28T00:00:00Z
date_updated: 2022-03-21T07:57:14Z
day: '28'
doi: 10.1074/jbc.M112.398321
extern: '1'
external_id:
pmid:
- '23139423'
intvolume: ' 287'
issue: '53'
language:
- iso: eng
month: '12'
oa_version: None
page: 44418 - 44424
pmid: 1
publication: Journal of Biological Chemistry
publication_status: published
publisher: American Society for Biochemistry and Molecular Biology
publist_id: '6852'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Biosynthesis of the fungal cell wall polysaccharide galactomannan requires
intraluminal GDP-mannose
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 287
year: '2012'
...
---
_id: '8024'
abstract:
- lang: eng
text: In dynamical models of cortical networks, the recurrent connectivity can amplify
the input given to the network in two distinct ways. One is induced by the presence
of near-critical eigenvalues in the connectivity matrix W, producing large but
slow activity fluctuations along the corresponding eigenvectors (dynamical slowing).
The other relies on W not being normal, which allows the network activity to make
large but fast excursions along specific directions. Here we investigate the trade-off
between non-normal amplification and dynamical slowing in the spontaneous activity
of large random neuronal networks composed of excitatory and inhibitory neurons.
We use a Schur decomposition of W to separate the two amplification mechanisms.
Assuming linear stochastic dynamics, we derive an exact expression for the expected
amount of purely non-normal amplification. We find that amplification is very
limited if dynamical slowing must be kept weak. We conclude that, to achieve strong
transient amplification with little slowing, the connectivity must be structured.
We show that unidirectional connections between neurons of the same type together
with reciprocal connections between neurons of different types, allow for amplification
already in the fast dynamical regime. Finally, our results also shed light on
the differences between balanced networks in which inhibition exactly cancels
excitation and those where inhibition dominates.
article_number: '011909'
article_processing_charge: No
article_type: original
author:
- first_name: Guillaume
full_name: Hennequin, Guillaume
last_name: Hennequin
- first_name: Tim P
full_name: Vogels, Tim P
id: CB6FF8D2-008F-11EA-8E08-2637E6697425
last_name: Vogels
orcid: 0000-0003-3295-6181
- first_name: Wulfram
full_name: Gerstner, Wulfram
last_name: Gerstner
citation:
ama: Hennequin G, Vogels TP, Gerstner W. Non-normal amplification in random balanced
neuronal networks. Physical Review E. 2012;86(1). doi:10.1103/physreve.86.011909
apa: Hennequin, G., Vogels, T. P., & Gerstner, W. (2012). Non-normal amplification
in random balanced neuronal networks. Physical Review E. American Physical
Society. https://doi.org/10.1103/physreve.86.011909
chicago: Hennequin, Guillaume, Tim P Vogels, and Wulfram Gerstner. “Non-Normal Amplification
in Random Balanced Neuronal Networks.” Physical Review E. American Physical
Society, 2012. https://doi.org/10.1103/physreve.86.011909.
ieee: G. Hennequin, T. P. Vogels, and W. Gerstner, “Non-normal amplification in
random balanced neuronal networks,” Physical Review E, vol. 86, no. 1.
American Physical Society, 2012.
ista: Hennequin G, Vogels TP, Gerstner W. 2012. Non-normal amplification in random
balanced neuronal networks. Physical Review E. 86(1), 011909.
mla: Hennequin, Guillaume, et al. “Non-Normal Amplification in Random Balanced Neuronal
Networks.” Physical Review E, vol. 86, no. 1, 011909, American Physical
Society, 2012, doi:10.1103/physreve.86.011909.
short: G. Hennequin, T.P. Vogels, W. Gerstner, Physical Review E 86 (2012).
date_created: 2020-06-25T13:09:06Z
date_published: 2012-06-11T00:00:00Z
date_updated: 2021-01-12T08:16:35Z
day: '11'
doi: 10.1103/physreve.86.011909
extern: '1'
external_id:
pmid:
- '23005454'
intvolume: ' 86'
issue: '1'
language:
- iso: eng
month: '06'
oa_version: None
pmid: 1
publication: Physical Review E
publication_identifier:
eisbn:
- 1550-2376
issn:
- 1539-3755
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
status: public
title: Non-normal amplification in random balanced neuronal networks
type: journal_article
user_id: D865714E-FA4E-11E9-B85B-F5C5E5697425
volume: 86
year: '2012'
...