---
_id: '7320'
abstract:
- lang: eng
text: A comparative, experimental diffusivity study of gas diffusion layer (GDL)
materials for polymer electrolyte fuel cells (PEFC) is presented for the first
time. The GDL plays an important role for electrochemical losses due to gas transport
limitations at high current densities. Characterization and optimization of these
layers is therefore essential to improve power density. A recently developed method
which allows for fast diffusimetry is applied and data compared to the literature
values. Measurements are made as a function of direction and compression and the
effect of different binder structures and hydrophobic treatments on effective
diffusivities are discussed. A better understanding of the results is gained by
including novel GDL cross-section images and a meaningful unit cell model for
the interpretation of the data. The diffusivity data is valuable for GDL manufacturers
and future PEFC models. The study reveals that a binder–fiber ratio larger than
50% has a negative impact on the effective diffusion properties. The hydrophobic
treatment which is necessary to improve the water management can impede diffusion
and thus reduce the power density. Furthermore binder has an isotropic effect
while compression pronounces the in-plane orientation of the fibers.
article_processing_charge: No
article_type: original
author:
- first_name: Reto
full_name: Flückiger, Reto
last_name: Flückiger
- 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: Denis
full_name: Kramer, Denis
last_name: Kramer
- first_name: Alexander
full_name: Wokaun, Alexander
last_name: Wokaun
- first_name: Günther G.
full_name: Scherer, Günther G.
last_name: Scherer
- first_name: Felix N.
full_name: Büchi, Felix N.
last_name: Büchi
citation:
ama: Flückiger R, Freunberger SA, Kramer D, Wokaun A, Scherer GG, Büchi FN. Anisotropic,
effective diffusivity of porous gas diffusion layer materials for PEFC. Electrochimica
Acta. 2008;54(2):551-559. doi:10.1016/j.electacta.2008.07.034
apa: Flückiger, R., Freunberger, S. A., Kramer, D., Wokaun, A., Scherer, G. G.,
& Büchi, F. N. (2008). Anisotropic, effective diffusivity of porous gas diffusion
layer materials for PEFC. Electrochimica Acta. Elsevier. https://doi.org/10.1016/j.electacta.2008.07.034
chicago: Flückiger, Reto, Stefan Alexander Freunberger, Denis Kramer, Alexander
Wokaun, Günther G. Scherer, and Felix N. Büchi. “Anisotropic, Effective Diffusivity
of Porous Gas Diffusion Layer Materials for PEFC.” Electrochimica Acta.
Elsevier, 2008. https://doi.org/10.1016/j.electacta.2008.07.034.
ieee: R. Flückiger, S. A. Freunberger, D. Kramer, A. Wokaun, G. G. Scherer, and
F. N. Büchi, “Anisotropic, effective diffusivity of porous gas diffusion layer
materials for PEFC,” Electrochimica Acta, vol. 54, no. 2. Elsevier, pp.
551–559, 2008.
ista: Flückiger R, Freunberger SA, Kramer D, Wokaun A, Scherer GG, Büchi FN. 2008.
Anisotropic, effective diffusivity of porous gas diffusion layer materials for
PEFC. Electrochimica Acta. 54(2), 551–559.
mla: Flückiger, Reto, et al. “Anisotropic, Effective Diffusivity of Porous Gas Diffusion
Layer Materials for PEFC.” Electrochimica Acta, vol. 54, no. 2, Elsevier,
2008, pp. 551–59, doi:10.1016/j.electacta.2008.07.034.
short: R. Flückiger, S.A. Freunberger, D. Kramer, A. Wokaun, G.G. Scherer, F.N.
Büchi, Electrochimica Acta 54 (2008) 551–559.
date_created: 2020-01-15T12:21:36Z
date_published: 2008-12-30T00:00:00Z
date_updated: 2021-01-12T08:13:02Z
day: '30'
doi: 10.1016/j.electacta.2008.07.034
extern: '1'
intvolume: ' 54'
issue: '2'
language:
- iso: eng
month: '12'
oa_version: None
page: 551-559
publication: Electrochimica Acta
publication_identifier:
issn:
- 0013-4686
publication_status: published
publisher: Elsevier
quality_controlled: '1'
status: public
title: Anisotropic, effective diffusivity of porous gas diffusion layer materials
for PEFC
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 54
year: '2008'
...
---
_id: '7321'
abstract:
- lang: eng
text: Cell interaction phenomena in polymer electrolyte fuel cell stacks that arise
from imbalance between adjacent cells are investigated in detail experimentally
and theoretically. A specialized two-cell stack with advanced localized diagnostics
was developed and used to analyze the mechanism and effect of cell-to-cell coupling
as a result of operationally relevant variations in reactant feed flow. Contributions
to overall and local voltage changes with respect to uniformly operated cells
are scrutinized. Unequal operation of the cells causes in-plane current in the
bipolar plate to redistribute current and result in inhomogeneous polarization.
Both increasing and decreasing polarization along the air-flow path reduces cell
power as compared to isopotential operation. A two-dimensional model based on
a commercial computational fluid dynamics code is used to back and extend the
experimental results to more general cases. Furthermore, the experimental setup
presented allowed for the first time to perform simultaneous localized electrochemical
impedance spectroscopy beyond the single-cell level. The mechanism of mutual cell
interaction on local and integral spectra is revealed. Results show that virtually
identical operation of the cells is essential to obtain meaningful integral spectra.
article_number: B704
article_processing_charge: No
article_type: original
author:
- 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: Ingo A.
full_name: Schneider, Ingo A.
last_name: Schneider
- first_name: Pang-Chieh
full_name: Sui, Pang-Chieh
last_name: Sui
- first_name: Alexander
full_name: Wokaun, Alexander
last_name: Wokaun
- first_name: Nedjib
full_name: Djilali, Nedjib
last_name: Djilali
- first_name: Felix N.
full_name: Büchi, Felix N.
last_name: Büchi
citation:
ama: Freunberger SA, Schneider IA, Sui P-C, Wokaun A, Djilali N, Büchi FN. Cell
interaction phenomena in polymer electrolyte fuel cell stacks. Journal of The
Electrochemical Society. 2008;155(7). doi:10.1149/1.2913095
apa: Freunberger, S. A., Schneider, I. A., Sui, P.-C., Wokaun, A., Djilali, N.,
& Büchi, F. N. (2008). Cell interaction phenomena in polymer electrolyte
fuel cell stacks. Journal of The Electrochemical Society. The Electrochemical
Society. https://doi.org/10.1149/1.2913095
chicago: Freunberger, Stefan Alexander, Ingo A. Schneider, Pang-Chieh Sui, Alexander
Wokaun, Nedjib Djilali, and Felix N. Büchi. “Cell Interaction Phenomena in Polymer
Electrolyte Fuel Cell Stacks.” Journal of The Electrochemical Society.
The Electrochemical Society, 2008. https://doi.org/10.1149/1.2913095.
ieee: S. A. Freunberger, I. A. Schneider, P.-C. Sui, A. Wokaun, N. Djilali, and
F. N. Büchi, “Cell interaction phenomena in polymer electrolyte fuel cell stacks,”
Journal of The Electrochemical Society, vol. 155, no. 7. The Electrochemical
Society, 2008.
ista: Freunberger SA, Schneider IA, Sui P-C, Wokaun A, Djilali N, Büchi FN. 2008.
Cell interaction phenomena in polymer electrolyte fuel cell stacks. Journal of
The Electrochemical Society. 155(7), B704.
mla: Freunberger, Stefan Alexander, et al. “Cell Interaction Phenomena in Polymer
Electrolyte Fuel Cell Stacks.” Journal of The Electrochemical Society,
vol. 155, no. 7, B704, The Electrochemical Society, 2008, doi:10.1149/1.2913095.
short: S.A. Freunberger, I.A. Schneider, P.-C. Sui, A. Wokaun, N. Djilali, F.N.
Büchi, Journal of The Electrochemical Society 155 (2008).
date_created: 2020-01-15T12:21:47Z
date_published: 2008-05-08T00:00:00Z
date_updated: 2021-01-12T08:13:03Z
day: '08'
doi: 10.1149/1.2913095
extern: '1'
intvolume: ' 155'
issue: '7'
language:
- iso: eng
month: '05'
oa_version: None
publication: Journal of The Electrochemical Society
publication_identifier:
issn:
- 0013-4651
publication_status: published
publisher: The Electrochemical Society
quality_controlled: '1'
status: public
title: Cell interaction phenomena in polymer electrolyte fuel cell stacks
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 155
year: '2008'
...
---
_id: '7322'
abstract:
- lang: eng
text: The gas diffusion layers (GDLs) of a membrane electrode assembly (MEA) serve
as link between flow field and porous electrode within a polymer electrolyte fuel
cell. Beside ensuring sufficient electrical and thermal contact between the whole
electrode area and the flow field, these typically 200–400 μm thick porous structures
enable the access of educts to the electrode area which would be occluded by the
flow field lands if the flow field is directly attached to the electrode. Hence,
the characterisation of properties pertaining to mass transport of educts and
products through these structures is indispensable whilst examining the contribution
of the GDLs to the overall electrochemical characteristics of a MEA. A fast and
cost effective method to measure the effective diffusivity of a GDL is presented.
Electrochemical impedance spectroscopy is applied to measure the effective ionic
conductivity of an electrolyte-soaked GDL. Taking advantage of the analogy between
Ficks and Ohms law, this provides a measure for the effective diffusivity. The
method is described in detail, including experimental as well as theoretical aspects,
and selected results, highlighting the anisotropy and dependence on the degree
of compression, are shown. Moreover, a two-dimensional model consisting of regularly
spaced ellipses is developed to represent the porous structure of the GDL, and
by using conformal maps, the agreement between this model and experiment with
respect to the sensitivity of the effective diffusivity towards compression is
shown.
article_processing_charge: No
article_type: original
author:
- first_name: Denis
full_name: Kramer, Denis
last_name: Kramer
- 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: Reto
full_name: Flückiger, Reto
last_name: Flückiger
- first_name: Ingo A.
full_name: Schneider, Ingo A.
last_name: Schneider
- first_name: Alexander
full_name: Wokaun, Alexander
last_name: Wokaun
- first_name: Felix N.
full_name: Büchi, Felix N.
last_name: Büchi
- first_name: Günther G.
full_name: Scherer, Günther G.
last_name: Scherer
citation:
ama: Kramer D, Freunberger SA, Flückiger R, et al. Electrochemical diffusimetry
of fuel cell gas diffusion layers. Journal of Electroanalytical Chemistry.
2008;612(1):63-77. doi:10.1016/j.jelechem.2007.09.014
apa: Kramer, D., Freunberger, S. A., Flückiger, R., Schneider, I. A., Wokaun, A.,
Büchi, F. N., & Scherer, G. G. (2008). Electrochemical diffusimetry of fuel
cell gas diffusion layers. Journal of Electroanalytical Chemistry. Elsevier.
https://doi.org/10.1016/j.jelechem.2007.09.014
chicago: Kramer, Denis, Stefan Alexander Freunberger, Reto Flückiger, Ingo A. Schneider,
Alexander Wokaun, Felix N. Büchi, and Günther G. Scherer. “Electrochemical Diffusimetry
of Fuel Cell Gas Diffusion Layers.” Journal of Electroanalytical Chemistry.
Elsevier, 2008. https://doi.org/10.1016/j.jelechem.2007.09.014.
ieee: D. Kramer et al., “Electrochemical diffusimetry of fuel cell gas diffusion
layers,” Journal of Electroanalytical Chemistry, vol. 612, no. 1. Elsevier,
pp. 63–77, 2008.
ista: Kramer D, Freunberger SA, Flückiger R, Schneider IA, Wokaun A, Büchi FN, Scherer
GG. 2008. Electrochemical diffusimetry of fuel cell gas diffusion layers. Journal
of Electroanalytical Chemistry. 612(1), 63–77.
mla: Kramer, Denis, et al. “Electrochemical Diffusimetry of Fuel Cell Gas Diffusion
Layers.” Journal of Electroanalytical Chemistry, vol. 612, no. 1, Elsevier,
2008, pp. 63–77, doi:10.1016/j.jelechem.2007.09.014.
short: D. Kramer, S.A. Freunberger, R. Flückiger, I.A. Schneider, A. Wokaun, F.N.
Büchi, G.G. Scherer, Journal of Electroanalytical Chemistry 612 (2008) 63–77.
date_created: 2020-01-15T12:21:57Z
date_published: 2008-01-01T00:00:00Z
date_updated: 2021-01-12T08:13:03Z
day: '01'
doi: 10.1016/j.jelechem.2007.09.014
extern: '1'
intvolume: ' 612'
issue: '1'
language:
- iso: eng
month: '01'
oa_version: None
page: 63-77
publication: Journal of Electroanalytical Chemistry
publication_identifier:
issn:
- 1572-6657
publication_status: published
publisher: Elsevier
quality_controlled: '1'
status: public
title: Electrochemical diffusimetry of fuel cell gas diffusion layers
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 612
year: '2008'
...
---
_id: '7425'
abstract:
- lang: eng
text: The propagation of single cell performance losses to adjacent cells in a polymer
electrolyte fuel cell stack is studied by means of local current density measurements
in a two cell stack. In this stack, the working conditions of adjacent cells can
be controlled independently in order to deliberately change the performance of
one cell (inducing cell) and study the coupling effects to the adjacent cell (response
cell), while keeping the working conditions of the later one unchanged. The experiments
have shown that changes in the current density distribution caused by lowering
of the air stoichiometry in the inducing cell cause changes in the current density
distribution of the response cell in the order of 60% of the change of the inducing
cell, even when the air stoichiometry of the response cell is kept constant. The
losses in cell voltage of the inducing cell cause losses in cell voltage of the
response cell in a magnitude between 30 and 50%.
article_processing_charge: No
author:
- first_name: Marco
full_name: Santis, Marco
last_name: Santis
- 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: Matthias
full_name: Papra, Matthias
last_name: Papra
- first_name: Felix N.
full_name: Büchi, Felix N.
last_name: Büchi
citation:
ama: 'Santis M, Freunberger SA, Papra M, Büchi FN. Experimental investigation of
the propagation of local current density variations to adjacent cells in PEFC
stacks. In: 3rd International Conference on Fuel Cell Science, Engineering
and Technology. ASMEDC; 2008:763-765. doi:10.1115/fuelcell2005-74116'
apa: 'Santis, M., Freunberger, S. A., Papra, M., & Büchi, F. N. (2008). Experimental
investigation of the propagation of local current density variations to adjacent
cells in PEFC stacks. In 3rd International Conference on Fuel Cell Science,
Engineering and Technology (pp. 763–765). Ypsilanti, MI, United States: ASMEDC.
https://doi.org/10.1115/fuelcell2005-74116'
chicago: Santis, Marco, Stefan Alexander Freunberger, Matthias Papra, and Felix
N. Büchi. “Experimental Investigation of the Propagation of Local Current Density
Variations to Adjacent Cells in PEFC Stacks.” In 3rd International Conference
on Fuel Cell Science, Engineering and Technology, 763–65. ASMEDC, 2008. https://doi.org/10.1115/fuelcell2005-74116.
ieee: M. Santis, S. A. Freunberger, M. Papra, and F. N. Büchi, “Experimental investigation
of the propagation of local current density variations to adjacent cells in PEFC
stacks,” in 3rd International Conference on Fuel Cell Science, Engineering
and Technology, Ypsilanti, MI, United States, 2008, pp. 763–765.
ista: Santis M, Freunberger SA, Papra M, Büchi FN. 2008. Experimental investigation
of the propagation of local current density variations to adjacent cells in PEFC
stacks. 3rd International Conference on Fuel Cell Science, Engineering and Technology.
International conference on fuel cell science, engineering and technology, 763–765.
mla: Santis, Marco, et al. “Experimental Investigation of the Propagation of Local
Current Density Variations to Adjacent Cells in PEFC Stacks.” 3rd International
Conference on Fuel Cell Science, Engineering and Technology, ASMEDC, 2008,
pp. 763–65, doi:10.1115/fuelcell2005-74116.
short: M. Santis, S.A. Freunberger, M. Papra, F.N. Büchi, in:, 3rd International
Conference on Fuel Cell Science, Engineering and Technology, ASMEDC, 2008, pp.
763–765.
conference:
end_date: 2005-05-25
location: Ypsilanti, MI, United States
name: International conference on fuel cell science, engineering and technology
start_date: 2005-05-23
date_created: 2020-01-31T10:14:45Z
date_published: 2008-10-13T00:00:00Z
date_updated: 2021-01-12T08:13:33Z
day: '13'
doi: 10.1115/fuelcell2005-74116
extern: '1'
language:
- iso: eng
month: '10'
oa_version: None
page: 763-765
publication: 3rd International Conference on Fuel Cell Science, Engineering and Technology
publication_identifier:
isbn:
- '0791837645'
- '0791837572'
publication_status: published
publisher: ASMEDC
quality_controlled: '1'
status: public
title: Experimental investigation of the propagation of local current density variations
to adjacent cells in PEFC stacks
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2008'
...
---
_id: '753'
abstract:
- lang: eng
text: 'This paper addresses the following question: what is the minimum-sized synchronous
window needed to solve consensus in an otherwise asynchronous system? In answer
to this question, we present the first optimally-resilient algorithm ASAP that
solves consensus as soon as possible in an eventually synchronous system, i.e.,
a system that from some time GST onwards, delivers messages in a timely fashion.
ASAP guarantees that, in an execution with at most f failures, every process decides
no later than round GST + f + 2, which is optimal.'
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: 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. How to solve consensus in
the smallest window of synchrony. In: Vol 5218 LNCS. Springer; 2008:32-46. doi:10.1007/978-3-540-87779-0_3'
apa: 'Alistarh, D.-A., Gilbert, S., Guerraoui, R., & Travers, C. (2008). How
to solve consensus in the smallest window of synchrony (Vol. 5218 LNCS, pp. 32–46).
Presented at the DISC: Distributed Computing, Springer. https://doi.org/10.1007/978-3-540-87779-0_3'
chicago: Alistarh, Dan-Adrian, Seth Gilbert, Rachid Guerraoui, and Corentin Travers.
“How to Solve Consensus in the Smallest Window of Synchrony,” 5218 LNCS:32–46.
Springer, 2008. https://doi.org/10.1007/978-3-540-87779-0_3.
ieee: 'D.-A. Alistarh, S. Gilbert, R. Guerraoui, and C. Travers, “How to solve consensus
in the smallest window of synchrony,” presented at the DISC: Distributed Computing,
2008, vol. 5218 LNCS, pp. 32–46.'
ista: 'Alistarh D-A, Gilbert S, Guerraoui R, Travers C. 2008. How to solve consensus
in the smallest window of synchrony. DISC: Distributed Computing, LNCS, vol. 5218
LNCS, 32–46.'
mla: Alistarh, Dan-Adrian, et al. How to Solve Consensus in the Smallest Window
of Synchrony. Vol. 5218 LNCS, Springer, 2008, pp. 32–46, doi:10.1007/978-3-540-87779-0_3.
short: D.-A. Alistarh, S. Gilbert, R. Guerraoui, C. Travers, in:, Springer, 2008,
pp. 32–46.
conference:
name: 'DISC: Distributed Computing'
date_created: 2018-12-11T11:48:19Z
date_published: 2008-01-01T00:00:00Z
date_updated: 2023-02-23T13:10:13Z
day: '01'
doi: 10.1007/978-3-540-87779-0_3
extern: '1'
language:
- iso: eng
month: '01'
oa_version: None
page: 32 - 46
publication_status: published
publisher: Springer
publist_id: '6904'
status: public
title: How to solve consensus in the smallest window of synchrony
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 5218 LNCS
year: '2008'
...
---
_id: '7752'
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: Jill G.
full_name: Pilkington, Jill G.
last_name: Pilkington
- first_name: Tim H.
full_name: Clutton-Brock, Tim H.
last_name: Clutton-Brock
- first_name: Josephine M.
full_name: Pemberton, Josephine M.
last_name: Pemberton
- first_name: Loeske. E.B.
full_name: Kruuk, Loeske. E.B.
last_name: Kruuk
citation:
ama: Robinson MR, Pilkington JG, Clutton-Brock TH, Pemberton JM, Kruuk LEB. Environmental
heterogeneity generates fluctuating selection on a secondary sexual trait. Current
Biology. 2008;18(10):751-757. doi:10.1016/j.cub.2008.04.059
apa: Robinson, M. R., Pilkington, J. G., Clutton-Brock, T. H., Pemberton, J. M.,
& Kruuk, L. E. B. (2008). Environmental heterogeneity generates fluctuating
selection on a secondary sexual trait. Current Biology. Elsevier. https://doi.org/10.1016/j.cub.2008.04.059
chicago: Robinson, Matthew Richard, Jill G. Pilkington, Tim H. Clutton-Brock, Josephine
M. Pemberton, and Loeske. E.B. Kruuk. “Environmental Heterogeneity Generates Fluctuating
Selection on a Secondary Sexual Trait.” Current Biology. Elsevier, 2008.
https://doi.org/10.1016/j.cub.2008.04.059.
ieee: M. R. Robinson, J. G. Pilkington, T. H. Clutton-Brock, J. M. Pemberton, and
L. E. B. Kruuk, “Environmental heterogeneity generates fluctuating selection on
a secondary sexual trait,” Current Biology, vol. 18, no. 10. Elsevier,
pp. 751–757, 2008.
ista: Robinson MR, Pilkington JG, Clutton-Brock TH, Pemberton JM, Kruuk LEB. 2008.
Environmental heterogeneity generates fluctuating selection on a secondary sexual
trait. Current Biology. 18(10), 751–757.
mla: Robinson, Matthew Richard, et al. “Environmental Heterogeneity Generates Fluctuating
Selection on a Secondary Sexual Trait.” Current Biology, vol. 18, no. 10,
Elsevier, 2008, pp. 751–57, doi:10.1016/j.cub.2008.04.059.
short: M.R. Robinson, J.G. Pilkington, T.H. Clutton-Brock, J.M. Pemberton, L.E.B.
Kruuk, Current Biology 18 (2008) 751–757.
date_created: 2020-04-30T11:02:13Z
date_published: 2008-05-20T00:00:00Z
date_updated: 2021-01-12T08:15:17Z
day: '20'
doi: 10.1016/j.cub.2008.04.059
extern: '1'
intvolume: ' 18'
issue: '10'
language:
- iso: eng
month: '05'
oa_version: None
page: 751-757
publication: Current Biology
publication_identifier:
issn:
- 0960-9822
publication_status: published
publisher: Elsevier
quality_controlled: '1'
status: public
title: Environmental heterogeneity generates fluctuating selection on a secondary
sexual trait
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 18
year: '2008'
...
---
_id: '4568'
abstract:
- lang: eng
text: We present and evaluate a framework and tool for combining multiple program
analyses which allows the dynamic (on-line) adjustment of the precision of each
analysis depending on the accumulated results. For example, the explicit tracking
of the values of a variable may be switched off in favor of a predicate abstraction
when and where the number of different variable values that have been encountered
has exceeded a specified threshold. The method is evaluated on verifying the SSH
client/server software and shows significant gains compared with predicate abstraction-based
model checking.
author:
- first_name: Dirk
full_name: Beyer, Dirk
last_name: Beyer
- first_name: Thomas A
full_name: Thomas Henzinger
id: 40876CD8-F248-11E8-B48F-1D18A9856A87
last_name: Henzinger
orcid: 0000−0002−2985−7724
- first_name: Grégory
full_name: Théoduloz, Grégory
last_name: Théoduloz
citation:
ama: 'Beyer D, Henzinger TA, Théoduloz G. Program analysis with dynamic change of
precision. In: ACM; 2008:29-38. doi:10.1109/ASE.2008.13'
apa: 'Beyer, D., Henzinger, T. A., & Théoduloz, G. (2008). Program analysis
with dynamic change of precision (pp. 29–38). Presented at the ASE: Automated
Software Engineering, ACM. https://doi.org/10.1109/ASE.2008.13'
chicago: Beyer, Dirk, Thomas A Henzinger, and Grégory Théoduloz. “Program Analysis
with Dynamic Change of Precision,” 29–38. ACM, 2008. https://doi.org/10.1109/ASE.2008.13.
ieee: 'D. Beyer, T. A. Henzinger, and G. Théoduloz, “Program analysis with dynamic
change of precision,” presented at the ASE: Automated Software Engineering, 2008,
pp. 29–38.'
ista: 'Beyer D, Henzinger TA, Théoduloz G. 2008. Program analysis with dynamic change
of precision. ASE: Automated Software Engineering, 29–38.'
mla: Beyer, Dirk, et al. Program Analysis with Dynamic Change of Precision.
ACM, 2008, pp. 29–38, doi:10.1109/ASE.2008.13.
short: D. Beyer, T.A. Henzinger, G. Théoduloz, in:, ACM, 2008, pp. 29–38.
conference:
name: 'ASE: Automated Software Engineering'
date_created: 2018-12-11T12:09:31Z
date_published: 2008-10-07T00:00:00Z
date_updated: 2021-01-12T07:59:46Z
day: '07'
doi: 10.1109/ASE.2008.13
extern: 1
main_file_link:
- open_access: '0'
url: http://pub.ist.ac.at/%7Etah/Publications/program_analysis_with_dynamic_change_of_precision.pdf
month: '10'
page: 29 - 38
publication_status: published
publisher: ACM
publist_id: '140'
quality_controlled: 0
status: public
title: Program analysis with dynamic change of precision
type: conference
year: '2008'
...
---
_id: '517'
article_processing_charge: No
author:
- first_name: Nicholas H
full_name: Barton, Nicholas H
id: 4880FE40-F248-11E8-B48F-1D18A9856A87
last_name: Barton
orcid: 0000-0002-8548-5240
citation:
ama: 'Barton NH. Identity and coalescence in structured populations: A commentary
on “Inbreeding coefficients and coalescence times” by Montgomery Slatkin. Genetics
Research. 2008;89(5-6):475-477. doi:10.1017/S0016672308009683'
apa: 'Barton, N. H. (2008). Identity and coalescence in structured populations:
A commentary on “Inbreeding coefficients and coalescence times” by Montgomery
Slatkin. Genetics Research. Cambridge University Press. https://doi.org/10.1017/S0016672308009683'
chicago: 'Barton, Nicholas H. “Identity and Coalescence in Structured Populations:
A Commentary on ‘Inbreeding Coefficients and Coalescence Times’ by Montgomery
Slatkin.” Genetics Research. Cambridge University Press, 2008. https://doi.org/10.1017/S0016672308009683.'
ieee: 'N. H. Barton, “Identity and coalescence in structured populations: A commentary
on ‘Inbreeding coefficients and coalescence times’ by Montgomery Slatkin,” Genetics
Research, vol. 89, no. 5–6. Cambridge University Press, pp. 475–477, 2008.'
ista: 'Barton NH. 2008. Identity and coalescence in structured populations: A commentary
on ‘Inbreeding coefficients and coalescence times’ by Montgomery Slatkin. Genetics
Research. 89(5–6), 475–477.'
mla: 'Barton, Nicholas H. “Identity and Coalescence in Structured Populations: A
Commentary on ‘Inbreeding Coefficients and Coalescence Times’ by Montgomery Slatkin.”
Genetics Research, vol. 89, no. 5–6, Cambridge University Press, 2008,
pp. 475–77, doi:10.1017/S0016672308009683.'
short: N.H. Barton, Genetics Research 89 (2008) 475–477.
date_created: 2018-12-11T11:46:55Z
date_published: 2008-10-29T00:00:00Z
date_updated: 2024-02-14T09:51:09Z
day: '29'
department:
- _id: NiBa
doi: 10.1017/S0016672308009683
intvolume: ' 89'
issue: 5-6
language:
- iso: eng
month: '10'
oa_version: None
page: 475 - 477
publication: Genetics Research
publication_status: published
publisher: Cambridge University Press
publist_id: '7302'
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Identity and coalescence in structured populations: A commentary on ''Inbreeding
coefficients and coalescence times'' by Montgomery Slatkin'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 89
year: '2008'
...
---
_id: '581'
abstract:
- lang: eng
text: We have detected a spin-dependent displacement perpendicular to the refractive
index gradient for photons passing through an air-glass interface. The effect
is the photonic version of the spin Hall effect in electronic systems, indicating
the universality of the effect for particles of different nature. Treating the
effect as a weak measurement of the spin projection of the photons, we used a
preselection and postselection technique on the spin state to enhance the original
displacement by nearly four orders of magnitude, attaining sensitivity to displacements
of ∼1 angstrom. The spin Hall effect can be used for manipulating photonic angular
momentum states, and the measurement technique holds promise for precision metrology.
author:
- first_name: Onur
full_name: Onur Hosten
id: 4C02D85E-F248-11E8-B48F-1D18A9856A87
last_name: Hosten
orcid: 0000-0002-2031-204X
- first_name: Paul
full_name: Kwiat, Paul
last_name: Kwiat
citation:
ama: Hosten O, Kwiat P. Observation of the spin hall effect of light via weak measurements.
Science. 2008;319(5864):787-790. doi:10.1126/science.1152697
apa: Hosten, O., & Kwiat, P. (2008). Observation of the spin hall effect of
light via weak measurements. Science. American Association for the Advancement
of Science. https://doi.org/10.1126/science.1152697
chicago: Hosten, Onur, and Paul Kwiat. “Observation of the Spin Hall Effect of Light
via Weak Measurements.” Science. American Association for the Advancement
of Science, 2008. https://doi.org/10.1126/science.1152697.
ieee: O. Hosten and P. Kwiat, “Observation of the spin hall effect of light via
weak measurements,” Science, vol. 319, no. 5864. American Association for
the Advancement of Science, pp. 787–790, 2008.
ista: Hosten O, Kwiat P. 2008. Observation of the spin hall effect of light via
weak measurements. Science. 319(5864), 787–790.
mla: Hosten, Onur, and Paul Kwiat. “Observation of the Spin Hall Effect of Light
via Weak Measurements.” Science, vol. 319, no. 5864, American Association
for the Advancement of Science, 2008, pp. 787–90, doi:10.1126/science.1152697.
short: O. Hosten, P. Kwiat, Science 319 (2008) 787–790.
date_created: 2018-12-11T11:47:19Z
date_published: 2008-02-08T00:00:00Z
date_updated: 2021-01-12T08:03:38Z
day: '08'
doi: 10.1126/science.1152697
extern: 1
intvolume: ' 319'
issue: '5864'
month: '02'
page: 787 - 790
publication: Science
publication_status: published
publisher: American Association for the Advancement of Science
publist_id: '7226'
quality_controlled: 0
status: public
title: Observation of the spin hall effect of light via weak measurements
type: journal_article
volume: 319
year: '2008'
...
---
_id: '584'
abstract:
- lang: eng
text: Using “quantum weak-measurements” as a coherent enhancement technique for
small signals, we have measured the recently proposed “spin Hall effect” of light
at an air-glass interface, and are working on the smoothly varying refractive-index
case.
alternative_title:
- Optics InfoBase Conference Papers
article_processing_charge: No
author:
- first_name: Onur
full_name: Hosten, Onur
id: 4C02D85E-F248-11E8-B48F-1D18A9856A87
last_name: Hosten
orcid: 0000-0002-2031-204X
- first_name: Paul
full_name: Kwiat, Paul
last_name: Kwiat
citation:
ama: 'Hosten O, Kwiat P. Spin hall effect of light via weak measurements: Sharp
and smooth index variations. In: Optica Publishing Group; 2008.'
apa: 'Hosten, O., & Kwiat, P. (2008). Spin hall effect of light via weak measurements:
Sharp and smooth index variations. Presented at the QELS: Quantum Electronics
and Laser Science Conference, San Jose, CA, United States: Optica Publishing Group.'
chicago: 'Hosten, Onur, and Paul Kwiat. “Spin Hall Effect of Light via Weak Measurements:
Sharp and Smooth Index Variations.” Optica Publishing Group, 2008.'
ieee: 'O. Hosten and P. Kwiat, “Spin hall effect of light via weak measurements:
Sharp and smooth index variations,” presented at the QELS: Quantum Electronics
and Laser Science Conference, San Jose, CA, United States, 2008.'
ista: 'Hosten O, Kwiat P. 2008. Spin hall effect of light via weak measurements:
Sharp and smooth index variations. QELS: Quantum Electronics and Laser Science
Conference, Optics InfoBase Conference Papers, .'
mla: 'Hosten, Onur, and Paul Kwiat. Spin Hall Effect of Light via Weak Measurements:
Sharp and Smooth Index Variations. Optica Publishing Group, 2008.'
short: O. Hosten, P. Kwiat, in:, Optica Publishing Group, 2008.
conference:
end_date: 2008-05-09
location: San Jose, CA, United States
name: 'QELS: Quantum Electronics and Laser Science Conference'
start_date: 2008-05-04
date_created: 2018-12-11T11:47:20Z
date_published: 2008-01-01T00:00:00Z
date_updated: 2022-05-24T09:10:41Z
day: '01'
extern: '1'
language:
- iso: eng
main_file_link:
- url: https://opg.optica.org/abstract.cfm?URI=QELS-2008-QFB7
month: '01'
oa_version: None
publication_identifier:
isbn:
- 978-155752859-9
issn:
- '21622701'
publication_status: published
publisher: Optica Publishing Group
publist_id: '7227'
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Spin hall effect of light via weak measurements: Sharp and smooth index variations'
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2008'
...
---
_id: '6146'
abstract:
- lang: eng
text: Homeostasis of internal carbon dioxide (CO2) and oxygen (O2) levels is fundamental
to all animals. Here we examine the CO2 response of the nematode Caenorhabditis
elegans. This species inhabits rotting material, which typically has a broad CO2
concentration range. We show that well fed C. elegans avoid CO2 levels above 0.5%.
Animals can respond to both absolute CO2 concentrations and changes in CO2 levels
within seconds. Responses to CO2 do not reflect avoidance of acid pH but appear
to define a new sensory response. Sensation of CO2 is promoted by the cGMP-gated
ion channel subunits TAX-2 and TAX-4, but other pathways are also important. Robust
CO2 avoidance in well fed animals requires inhibition of the DAF-16 forkhead transcription
factor by the insulin-like receptor DAF-2. Starvation, which activates DAF-16,
strongly suppresses CO2 avoidance. Exposure to hypoxia (<1% O2) also suppresses
CO2 avoidance via activation of the hypoxia-inducible transcription factor HIF-1.
The npr-1 215V allele of the naturally polymorphic neuropeptide receptor npr-1,
besides inhibiting avoidance of high ambient O2 in feeding C. elegans, also promotes
avoidance of high CO2. C. elegans integrates competing O2 and CO2 sensory inputs
so that one response dominates. Food and allelic variation at NPR-1 regulate which
response prevails. Our results suggest that multiple sensory inputs are coordinated
by C. elegans to generate different coherent foraging strategies.
author:
- first_name: A. J.
full_name: Bretscher, A. J.
last_name: Bretscher
- first_name: K. E.
full_name: Busch, K. E.
last_name: Busch
- first_name: Mario
full_name: de Bono, Mario
id: 4E3FF80E-F248-11E8-B48F-1D18A9856A87
last_name: de Bono
orcid: 0000-0001-8347-0443
citation:
ama: Bretscher AJ, Busch KE, de Bono M. A carbon dioxide avoidance behavior is integrated
with responses to ambient oxygen and food in Caenorhabditis elegans. Proceedings
of the National Academy of Sciences. 2008;105(23):8044-8049. doi:10.1073/pnas.0707607105
apa: Bretscher, A. J., Busch, K. E., & de Bono, M. (2008). A carbon dioxide
avoidance behavior is integrated with responses to ambient oxygen and food in
Caenorhabditis elegans. Proceedings of the National Academy of Sciences.
Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.0707607105
chicago: Bretscher, A. J., K. E. Busch, and Mario de Bono. “A Carbon Dioxide Avoidance
Behavior Is Integrated with Responses to Ambient Oxygen and Food in Caenorhabditis
Elegans.” Proceedings of the National Academy of Sciences. Proceedings
of the National Academy of Sciences, 2008. https://doi.org/10.1073/pnas.0707607105.
ieee: A. J. Bretscher, K. E. Busch, and M. de Bono, “A carbon dioxide avoidance
behavior is integrated with responses to ambient oxygen and food in Caenorhabditis
elegans,” Proceedings of the National Academy of Sciences, vol. 105, no.
23. Proceedings of the National Academy of Sciences, pp. 8044–8049, 2008.
ista: Bretscher AJ, Busch KE, de Bono M. 2008. A carbon dioxide avoidance behavior
is integrated with responses to ambient oxygen and food in Caenorhabditis elegans.
Proceedings of the National Academy of Sciences. 105(23), 8044–8049.
mla: Bretscher, A. J., et al. “A Carbon Dioxide Avoidance Behavior Is Integrated
with Responses to Ambient Oxygen and Food in Caenorhabditis Elegans.” Proceedings
of the National Academy of Sciences, vol. 105, no. 23, Proceedings of the
National Academy of Sciences, 2008, pp. 8044–49, doi:10.1073/pnas.0707607105.
short: A.J. Bretscher, K.E. Busch, M. de Bono, Proceedings of the National Academy
of Sciences 105 (2008) 8044–8049.
date_created: 2019-03-21T08:10:15Z
date_published: 2008-06-10T00:00:00Z
date_updated: 2021-01-12T08:06:21Z
day: '10'
ddc:
- '570'
doi: 10.1073/pnas.0707607105
extern: '1'
external_id:
pmid:
- '18524954'
file:
- access_level: open_access
checksum: eac0413064b022c1489f7b6719e7228c
content_type: application/pdf
creator: kschuh
date_created: 2019-03-21T08:14:54Z
date_updated: 2020-07-14T12:47:20Z
file_id: '6147'
file_name: 2008_PNAS_Bretscher.pdf
file_size: 501506
relation: main_file
file_date_updated: 2020-07-14T12:47:20Z
has_accepted_license: '1'
intvolume: ' 105'
issue: '23'
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
page: 8044-8049
pmid: 1
publication: Proceedings of the National Academy of Sciences
publication_identifier:
issn:
- 0027-8424
- 1091-6490
publication_status: published
publisher: Proceedings of the National Academy of Sciences
quality_controlled: '1'
status: public
title: A carbon dioxide avoidance behavior is integrated with responses to ambient
oxygen and food in Caenorhabditis elegans
type: journal_article
user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87
volume: 105
year: '2008'
...
---
_id: '6148'
author:
- first_name: Jan E.
full_name: Kammenga, Jan E.
last_name: Kammenga
- first_name: Patrick C.
full_name: Phillips, Patrick C.
last_name: Phillips
- first_name: Mario
full_name: de Bono, Mario
id: 4E3FF80E-F248-11E8-B48F-1D18A9856A87
last_name: de Bono
orcid: 0000-0001-8347-0443
- first_name: Agnieszka
full_name: Doroszuk, Agnieszka
last_name: Doroszuk
citation:
ama: 'Kammenga JE, Phillips PC, de Bono M, Doroszuk A. Beyond induced mutants: using
worms to study natural variation in genetic pathways. Trends in Genetics.
2008;24(4):178-185. doi:10.1016/j.tig.2008.01.001'
apa: 'Kammenga, J. E., Phillips, P. C., de Bono, M., & Doroszuk, A. (2008).
Beyond induced mutants: using worms to study natural variation in genetic pathways.
Trends in Genetics. Elsevier. https://doi.org/10.1016/j.tig.2008.01.001'
chicago: 'Kammenga, Jan E., Patrick C. Phillips, Mario de Bono, and Agnieszka Doroszuk.
“Beyond Induced Mutants: Using Worms to Study Natural Variation in Genetic Pathways.”
Trends in Genetics. Elsevier, 2008. https://doi.org/10.1016/j.tig.2008.01.001.'
ieee: 'J. E. Kammenga, P. C. Phillips, M. de Bono, and A. Doroszuk, “Beyond induced
mutants: using worms to study natural variation in genetic pathways,” Trends
in Genetics, vol. 24, no. 4. Elsevier, pp. 178–185, 2008.'
ista: 'Kammenga JE, Phillips PC, de Bono M, Doroszuk A. 2008. Beyond induced mutants:
using worms to study natural variation in genetic pathways. Trends in Genetics.
24(4), 178–185.'
mla: 'Kammenga, Jan E., et al. “Beyond Induced Mutants: Using Worms to Study Natural
Variation in Genetic Pathways.” Trends in Genetics, vol. 24, no. 4, Elsevier,
2008, pp. 178–85, doi:10.1016/j.tig.2008.01.001.'
short: J.E. Kammenga, P.C. Phillips, M. de Bono, A. Doroszuk, Trends in Genetics
24 (2008) 178–185.
date_created: 2019-03-21T08:19:45Z
date_published: 2008-04-01T00:00:00Z
date_updated: 2021-01-12T08:06:21Z
day: '01'
doi: 10.1016/j.tig.2008.01.001
extern: '1'
external_id:
pmid:
- '18325626'
intvolume: ' 24'
issue: '4'
language:
- iso: eng
month: '04'
oa_version: None
page: 178-185
pmid: 1
publication: Trends in Genetics
publication_identifier:
issn:
- 0168-9525
publication_status: published
publisher: Elsevier
quality_controlled: '1'
status: public
title: 'Beyond induced mutants: using worms to study natural variation in genetic
pathways'
type: journal_article
user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87
volume: 24
year: '2008'
...
---
_id: '6149'
article_processing_charge: No
author:
- first_name: Birgitta
full_name: Olofsson, Birgitta
last_name: Olofsson
- first_name: Mario
full_name: de Bono, Mario
id: 4E3FF80E-F248-11E8-B48F-1D18A9856A87
last_name: de Bono
orcid: 0000-0001-8347-0443
citation:
ama: 'Olofsson B, de Bono M. Sleep: dozy worms and sleepy flies. Current Biology.
2008;18(5):R204-R206. doi:10.1016/j.cub.2008.01.002'
apa: 'Olofsson, B., & de Bono, M. (2008). Sleep: dozy worms and sleepy flies.
Current Biology. Elsevier. https://doi.org/10.1016/j.cub.2008.01.002'
chicago: 'Olofsson, Birgitta, and Mario de Bono. “Sleep: Dozy Worms and Sleepy Flies.”
Current Biology. Elsevier, 2008. https://doi.org/10.1016/j.cub.2008.01.002.'
ieee: 'B. Olofsson and M. de Bono, “Sleep: dozy worms and sleepy flies,” Current
Biology, vol. 18, no. 5. Elsevier, pp. R204–R206, 2008.'
ista: 'Olofsson B, de Bono M. 2008. Sleep: dozy worms and sleepy flies. Current
Biology. 18(5), R204–R206.'
mla: 'Olofsson, Birgitta, and Mario de Bono. “Sleep: Dozy Worms and Sleepy Flies.”
Current Biology, vol. 18, no. 5, Elsevier, 2008, pp. R204–06, doi:10.1016/j.cub.2008.01.002.'
short: B. Olofsson, M. de Bono, Current Biology 18 (2008) R204–R206.
date_created: 2019-03-21T08:23:24Z
date_published: 2008-03-11T00:00:00Z
date_updated: 2022-08-25T15:03:41Z
day: '11'
doi: 10.1016/j.cub.2008.01.002
extern: '1'
external_id:
pmid:
- '18334193'
intvolume: ' 18'
issue: '5'
language:
- iso: eng
month: '03'
oa_version: None
page: R204-R206
pmid: 1
publication: Current Biology
publication_identifier:
issn:
- 0960-9822
publication_status: published
publisher: Elsevier
quality_controlled: '1'
status: public
title: 'Sleep: dozy worms and sleepy flies'
type: journal_article
user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87
volume: 18
year: '2008'
...
---
_id: '1460'
abstract:
- lang: eng
text: 'We calculate the E-polynomials of certain twisted GL(n,ℂ)-character varieties
Mn of Riemann surfaces by counting points over finite fields using the character
table of the finite group of Lie-type GL(n, q) and a theorem proved in the appendix
by N. Katz. We deduce from this calculation several geometric results, for example,
the value of the topological Euler characteristic of the associated PGL(n,ℂ)-character
variety. The calculation also leads to several conjectures about the cohomology
of Mn: an explicit conjecture for its mixed Hodge polynomial; a conjectured curious
hard Lefschetz theorem and a conjecture relating the pure part to absolutely indecomposable
representations of a certain quiver. We prove these conjectures for n=2.'
acknowledgement: The first author was supported by NSF grants DMS-0305505 and DMS-
0604775 an Alfred Sloan Fellowship and a Royal Society University Research Fellowship.
The second author was supported by an NSF grant DMS-0200605.
author:
- first_name: Tamas
full_name: Tamas Hausel
id: 4A0666D8-F248-11E8-B48F-1D18A9856A87
last_name: Hausel
- first_name: Fernando
full_name: Rodríguez Villegas, Fernando
last_name: Rodríguez Villegas
citation:
ama: 'Hausel T, Rodríguez Villegas F. Mixed Hodge polynomials of character varieties:
With an appendix by Nicholas M. Katz. Inventiones Mathematicae. 2008;174(3):555-624.
doi:10.1007/s00222-008-0142-x'
apa: 'Hausel, T., & Rodríguez Villegas, F. (2008). Mixed Hodge polynomials of
character varieties: With an appendix by Nicholas M. Katz. Inventiones Mathematicae.
Springer. https://doi.org/10.1007/s00222-008-0142-x'
chicago: 'Hausel, Tamás, and Fernando Rodríguez Villegas. “Mixed Hodge Polynomials
of Character Varieties: With an Appendix by Nicholas M. Katz.” Inventiones
Mathematicae. Springer, 2008. https://doi.org/10.1007/s00222-008-0142-x.'
ieee: 'T. Hausel and F. Rodríguez Villegas, “Mixed Hodge polynomials of character
varieties: With an appendix by Nicholas M. Katz,” Inventiones Mathematicae,
vol. 174, no. 3. Springer, pp. 555–624, 2008.'
ista: 'Hausel T, Rodríguez Villegas F. 2008. Mixed Hodge polynomials of character
varieties: With an appendix by Nicholas M. Katz. Inventiones Mathematicae. 174(3),
555–624.'
mla: 'Hausel, Tamás, and Fernando Rodríguez Villegas. “Mixed Hodge Polynomials of
Character Varieties: With an Appendix by Nicholas M. Katz.” Inventiones Mathematicae,
vol. 174, no. 3, Springer, 2008, pp. 555–624, doi:10.1007/s00222-008-0142-x.'
short: T. Hausel, F. Rodríguez Villegas, Inventiones Mathematicae 174 (2008) 555–624.
date_created: 2018-12-11T11:52:09Z
date_published: 2008-12-01T00:00:00Z
date_updated: 2021-01-12T06:50:54Z
day: '01'
doi: 10.1007/s00222-008-0142-x
extern: 1
intvolume: ' 174'
issue: '3'
main_file_link:
- open_access: '1'
url: http://arxiv.org/abs/math/0612668
month: '12'
oa: 1
page: 555 - 624
publication: Inventiones Mathematicae
publication_status: published
publisher: Springer
publist_id: '5732'
quality_controlled: 0
status: public
title: 'Mixed Hodge polynomials of character varieties: With an appendix by Nicholas
M. Katz'
type: journal_article
volume: 174
year: '2008'
...
---
_id: '13422'
abstract:
- lang: eng
text: 'Make like a leaf: The synthesis and characterization of a family of “flowerlike”
Au/Fe3O4 nanoparticles is described, whereby Fe3O4 “leaves” adhere to a gold core
(see image). The size and numbers of iron oxide domains can be adjusted flexibly
by changing the proportion of the starting materials and the reaction time.'
article_processing_charge: No
article_type: original
author:
- first_name: Yanhu
full_name: Wei, Yanhu
last_name: Wei
- first_name: Rafal
full_name: Klajn, Rafal
id: 8e84690e-1e48-11ed-a02b-a1e6fb8bb53b
last_name: Klajn
- first_name: Anatoliy O.
full_name: Pinchuk, Anatoliy O.
last_name: Pinchuk
- first_name: Bartosz A.
full_name: Grzybowski, Bartosz A.
last_name: Grzybowski
citation:
ama: Wei Y, Klajn R, Pinchuk AO, Grzybowski BA. Synthesis, shape control, and optical
properties of hybrid Au/Fe3O4 “nanoflowers.” Small. 2008;4(10):1635-1639.
doi:10.1002/smll.200800511
apa: Wei, Y., Klajn, R., Pinchuk, A. O., & Grzybowski, B. A. (2008). Synthesis,
shape control, and optical properties of hybrid Au/Fe3O4 “nanoflowers.” Small.
Wiley. https://doi.org/10.1002/smll.200800511
chicago: Wei, Yanhu, Rafal Klajn, Anatoliy O. Pinchuk, and Bartosz A. Grzybowski.
“Synthesis, Shape Control, and Optical Properties of Hybrid Au/Fe3O4 ‘Nanoflowers.’”
Small. Wiley, 2008. https://doi.org/10.1002/smll.200800511.
ieee: Y. Wei, R. Klajn, A. O. Pinchuk, and B. A. Grzybowski, “Synthesis, shape control,
and optical properties of hybrid Au/Fe3O4 ‘nanoflowers,’” Small, vol. 4,
no. 10. Wiley, pp. 1635–1639, 2008.
ista: Wei Y, Klajn R, Pinchuk AO, Grzybowski BA. 2008. Synthesis, shape control,
and optical properties of hybrid Au/Fe3O4 “nanoflowers”. Small. 4(10), 1635–1639.
mla: Wei, Yanhu, et al. “Synthesis, Shape Control, and Optical Properties of Hybrid
Au/Fe3O4 ‘Nanoflowers.’” Small, vol. 4, no. 10, Wiley, 2008, pp. 1635–39,
doi:10.1002/smll.200800511.
short: Y. Wei, R. Klajn, A.O. Pinchuk, B.A. Grzybowski, Small 4 (2008) 1635–1639.
date_created: 2023-08-01T10:30:42Z
date_published: 2008-10-09T00:00:00Z
date_updated: 2023-08-08T11:14:50Z
day: '09'
doi: 10.1002/smll.200800511
extern: '1'
external_id:
pmid:
- '18636405'
intvolume: ' 4'
issue: '10'
keyword:
- Biomaterials
- Biotechnology
- General Materials Science
- General Chemistry
language:
- iso: eng
month: '10'
oa_version: None
page: 1635-1639
pmid: 1
publication: Small
publication_identifier:
eissn:
- 1613-6829
issn:
- 1613-6810
publication_status: published
publisher: Wiley
quality_controlled: '1'
scopus_import: '1'
status: public
title: Synthesis, shape control, and optical properties of hybrid Au/Fe3O4 “nanoflowers”
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 4
year: '2008'
...
---
_id: '13423'
abstract:
- lang: eng
text: Supraspheres (SS) composed of hundreds to thousands of metal nanoparticles
(NPs) and crosslinked by dithiol linkers are assembled into larger structures,
which are subsequently converted into nanoporous metals (NMs). Conversion is achieved
by heating which removes organic molecules stabilizing the NPs and allows for
NP fusion. Heating of SS solutions leads to NMs of overall macroscopic dimensions;
localized radiation using collimated electron beam is used to prepare metallized
surface micropatterns. Depending on the composition of supraspherical precursors,
nanoporous materials composed of up to three metals can be obtained. Strategies
for controlling pore size and nanoscale surface roughness of these materials are
discussed.
article_processing_charge: No
article_type: original
author:
- first_name: Rafal
full_name: Klajn, Rafal
id: 8e84690e-1e48-11ed-a02b-a1e6fb8bb53b
last_name: Klajn
- first_name: Timothy P.
full_name: Gray, Timothy P.
last_name: Gray
- first_name: Paul J.
full_name: Wesson, Paul J.
last_name: Wesson
- first_name: Benjamin D.
full_name: Myers, Benjamin D.
last_name: Myers
- first_name: Vinayak P.
full_name: Dravid, Vinayak P.
last_name: Dravid
- first_name: Stoyan K.
full_name: Smoukov, Stoyan K.
last_name: Smoukov
- first_name: Bartosz A.
full_name: Grzybowski, Bartosz A.
last_name: Grzybowski
citation:
ama: Klajn R, Gray TP, Wesson PJ, et al. Bulk synthesis and surface patterning of
nanoporous metals and alloys from supraspherical nanoparticle aggregates. Advanced
Functional Materials. 2008;18(18):2763-2769. doi:10.1002/adfm.200800293
apa: Klajn, R., Gray, T. P., Wesson, P. J., Myers, B. D., Dravid, V. P., Smoukov,
S. K., & Grzybowski, B. A. (2008). Bulk synthesis and surface patterning of
nanoporous metals and alloys from supraspherical nanoparticle aggregates. Advanced
Functional Materials. Wiley. https://doi.org/10.1002/adfm.200800293
chicago: Klajn, Rafal, Timothy P. Gray, Paul J. Wesson, Benjamin D. Myers, Vinayak
P. Dravid, Stoyan K. Smoukov, and Bartosz A. Grzybowski. “Bulk Synthesis and Surface
Patterning of Nanoporous Metals and Alloys from Supraspherical Nanoparticle Aggregates.”
Advanced Functional Materials. Wiley, 2008. https://doi.org/10.1002/adfm.200800293.
ieee: R. Klajn et al., “Bulk synthesis and surface patterning of nanoporous
metals and alloys from supraspherical nanoparticle aggregates,” Advanced Functional
Materials, vol. 18, no. 18. Wiley, pp. 2763–2769, 2008.
ista: Klajn R, Gray TP, Wesson PJ, Myers BD, Dravid VP, Smoukov SK, Grzybowski BA.
2008. Bulk synthesis and surface patterning of nanoporous metals and alloys from
supraspherical nanoparticle aggregates. Advanced Functional Materials. 18(18),
2763–2769.
mla: Klajn, Rafal, et al. “Bulk Synthesis and Surface Patterning of Nanoporous Metals
and Alloys from Supraspherical Nanoparticle Aggregates.” Advanced Functional
Materials, vol. 18, no. 18, Wiley, 2008, pp. 2763–69, doi:10.1002/adfm.200800293.
short: R. Klajn, T.P. Gray, P.J. Wesson, B.D. Myers, V.P. Dravid, S.K. Smoukov,
B.A. Grzybowski, Advanced Functional Materials 18 (2008) 2763–2769.
date_created: 2023-08-01T10:30:57Z
date_published: 2008-09-23T00:00:00Z
date_updated: 2023-08-08T11:16:28Z
day: '23'
doi: 10.1002/adfm.200800293
extern: '1'
intvolume: ' 18'
issue: '18'
keyword:
- Electrochemistry
- Condensed Matter Physics
- Biomaterials
- Electronic
- Optical and Magnetic Materials
language:
- iso: eng
month: '09'
oa_version: None
page: 2763-2769
publication: Advanced Functional Materials
publication_identifier:
eissn:
- 1616-3028
issn:
- 1616-301X
publication_status: published
publisher: Wiley
quality_controlled: '1'
scopus_import: '1'
status: public
title: Bulk synthesis and surface patterning of nanoporous metals and alloys from
supraspherical nanoparticle aggregates
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 18
year: '2008'
...
---
_id: '907'
abstract:
- lang: eng
text: The most common form of protein-coding gene overlap in eukaryotes is a simple
nested structure, whereby one gene is embedded in an intron of another. Analysis
of nested protein-coding genes in vertebrates, fruit flies and nematodes revealed
substantially higher rates of evolutionary gains than losses. The accumulation
of nested gene structures could not be attributed to any obvious functional relationships
between the genes involved and represents an increase of the organizational complexity
of animal genomes via a neutral process.
author:
- first_name: Raquel
full_name: Assis, Raquel
last_name: Assis
- first_name: Alexey
full_name: Kondrashov, Alexey S
last_name: Kondrashov
- first_name: Eugene
full_name: Koonin, Eugene V
last_name: Koonin
- first_name: Fyodor
full_name: Fyodor Kondrashov
id: 44FDEF62-F248-11E8-B48F-1D18A9856A87
last_name: Kondrashov
orcid: 0000-0001-8243-4694
citation:
ama: Assis R, Kondrashov A, Koonin E, Kondrashov F. Nested genes and increasing
organizational complexity of metazoan genomes. Trends in Genetics. 2008;24(10):475-478.
doi:10.1016/j.tig.2008.08.003
apa: Assis, R., Kondrashov, A., Koonin, E., & Kondrashov, F. (2008). Nested
genes and increasing organizational complexity of metazoan genomes. Trends
in Genetics. Elsevier. https://doi.org/10.1016/j.tig.2008.08.003
chicago: Assis, Raquel, Alexey Kondrashov, Eugene Koonin, and Fyodor Kondrashov.
“Nested Genes and Increasing Organizational Complexity of Metazoan Genomes.” Trends
in Genetics. Elsevier, 2008. https://doi.org/10.1016/j.tig.2008.08.003.
ieee: R. Assis, A. Kondrashov, E. Koonin, and F. Kondrashov, “Nested genes and increasing
organizational complexity of metazoan genomes,” Trends in Genetics, vol.
24, no. 10. Elsevier, pp. 475–478, 2008.
ista: Assis R, Kondrashov A, Koonin E, Kondrashov F. 2008. Nested genes and increasing
organizational complexity of metazoan genomes. Trends in Genetics. 24(10), 475–478.
mla: Assis, Raquel, et al. “Nested Genes and Increasing Organizational Complexity
of Metazoan Genomes.” Trends in Genetics, vol. 24, no. 10, Elsevier, 2008,
pp. 475–78, doi:10.1016/j.tig.2008.08.003.
short: R. Assis, A. Kondrashov, E. Koonin, F. Kondrashov, Trends in Genetics 24
(2008) 475–478.
date_created: 2018-12-11T11:49:08Z
date_published: 2008-10-01T00:00:00Z
date_updated: 2021-01-12T08:21:49Z
day: '01'
doi: 10.1016/j.tig.2008.08.003
extern: 1
intvolume: ' 24'
issue: '10'
month: '10'
page: 475 - 478
publication: Trends in Genetics
publication_status: published
publisher: Elsevier
publist_id: '6743'
quality_controlled: 0
status: public
title: Nested genes and increasing organizational complexity of metazoan genomes
type: journal_article
volume: 24
year: '2008'
...
---
_id: '9457'
abstract:
- lang: eng
text: Eukaryotic chromatin is separated into functional domains differentiated by
posttranslational histone modifications, histone variants, and DNA methylation1–6.
Methylation is associated with repression of transcriptional initiation in plants
and animals, and is frequently found in transposable elements. Proper methylation
patterns are critical for eukaryotic development4,5, and aberrant methylation-induced
silencing of tumor suppressor genes is a common feature of human cancer7. In contrast
to methylation, the histone variant H2A.Z is preferentially deposited by the Swr1
ATPase complex near 5′ ends of genes where it promotes transcriptional competence8–20.
How DNA methylation and H2A.Z influence transcription remains largely unknown.
Here we show that in the plant Arabidopsis thaliana, regions of DNA methylation
are quantitatively deficient in H2A.Z. Exclusion of H2A.Z is seen at sites of
DNA methylation in the bodies of actively transcribed genes and in methylated
transposons. Mutation of the MET1 DNA methyltransferase, which causes both losses
and gains of DNA methylation4,5, engenders opposite changes in H2A.Z deposition,
while mutation of the PIE1 subunit of the Swr1 complex that deposits H2A.Z17 leads
to genome-wide hypermethylation. Our findings indicate that DNA methylation can
influence chromatin structure and effect gene silencing by excluding H2A.Z, and
that H2A.Z protects genes from DNA methylation.
article_processing_charge: No
article_type: letter_note
author:
- first_name: Daniel
full_name: Zilberman, Daniel
id: 6973db13-dd5f-11ea-814e-b3e5455e9ed1
last_name: Zilberman
orcid: 0000-0002-0123-8649
- first_name: Devin
full_name: Coleman-Derr, Devin
last_name: Coleman-Derr
- first_name: Tracy
full_name: Ballinger, Tracy
last_name: Ballinger
- first_name: Steven
full_name: Henikoff, Steven
last_name: Henikoff
citation:
ama: Zilberman D, Coleman-Derr D, Ballinger T, Henikoff S. Histone H2A.Z and DNA
methylation are mutually antagonistic chromatin marks. Nature. 2008;456(7218):125-129.
doi:10.1038/nature07324
apa: Zilberman, D., Coleman-Derr, D., Ballinger, T., & Henikoff, S. (2008).
Histone H2A.Z and DNA methylation are mutually antagonistic chromatin marks. Nature.
Springer Nature. https://doi.org/10.1038/nature07324
chicago: Zilberman, Daniel, Devin Coleman-Derr, Tracy Ballinger, and Steven Henikoff.
“Histone H2A.Z and DNA Methylation Are Mutually Antagonistic Chromatin Marks.”
Nature. Springer Nature, 2008. https://doi.org/10.1038/nature07324.
ieee: D. Zilberman, D. Coleman-Derr, T. Ballinger, and S. Henikoff, “Histone H2A.Z
and DNA methylation are mutually antagonistic chromatin marks,” Nature,
vol. 456, no. 7218. Springer Nature, pp. 125–129, 2008.
ista: Zilberman D, Coleman-Derr D, Ballinger T, Henikoff S. 2008. Histone H2A.Z
and DNA methylation are mutually antagonistic chromatin marks. Nature. 456(7218),
125–129.
mla: Zilberman, Daniel, et al. “Histone H2A.Z and DNA Methylation Are Mutually Antagonistic
Chromatin Marks.” Nature, vol. 456, no. 7218, Springer Nature, 2008, pp.
125–29, doi:10.1038/nature07324.
short: D. Zilberman, D. Coleman-Derr, T. Ballinger, S. Henikoff, Nature 456 (2008)
125–129.
date_created: 2021-06-04T11:49:32Z
date_published: 2008-11-06T00:00:00Z
date_updated: 2021-12-14T08:54:36Z
day: '06'
department:
- _id: DaZi
doi: 10.1038/nature07324
extern: '1'
external_id:
pmid:
- '18815594'
intvolume: ' 456'
issue: '7218'
keyword:
- Multidisciplinary
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2877514/
month: '11'
oa: 1
oa_version: Submitted Version
page: 125-129
pmid: 1
publication: Nature
publication_identifier:
eissn:
- 1476-4687
issn:
- 0028-0836
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Histone H2A.Z and DNA methylation are mutually antagonistic chromatin marks
type: journal_article
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
volume: 456
year: '2008'
...
---
_id: '9537'
abstract:
- lang: eng
text: DNA methylation is an ancient process found in all domains of life. Although
the enzymes that mediate methylation have remained highly conserved, DNA methylation
has been adapted for a variety of uses throughout evolution, including defense
against transposable elements and control of gene expression. Defects in DNA methylation
are linked to human diseases, including cancer. Methylation has been lost several
times in the course of animal and fungal evolution, thus limiting the opportunity
for study in common model organisms. In the past decade, plants have emerged as
a premier model system for genetic dissection of DNA methylation. A recent combination
of plant genetics with powerful genomic approaches has led to a number of exciting
discoveries and promises many more.
article_processing_charge: No
article_type: review
author:
- first_name: Daniel
full_name: Zilberman, Daniel
id: 6973db13-dd5f-11ea-814e-b3e5455e9ed1
last_name: Zilberman
orcid: 0000-0002-0123-8649
citation:
ama: Zilberman D. The evolving functions of DNA methylation. Current Opinion
in Plant Biology. 2008;11(5):554-559. doi:10.1016/j.pbi.2008.07.004
apa: Zilberman, D. (2008). The evolving functions of DNA methylation. Current
Opinion in Plant Biology. Elsevier . https://doi.org/10.1016/j.pbi.2008.07.004
chicago: Zilberman, Daniel. “The Evolving Functions of DNA Methylation.” Current
Opinion in Plant Biology. Elsevier , 2008. https://doi.org/10.1016/j.pbi.2008.07.004.
ieee: D. Zilberman, “The evolving functions of DNA methylation,” Current Opinion
in Plant Biology, vol. 11, no. 5. Elsevier , pp. 554–559, 2008.
ista: Zilberman D. 2008. The evolving functions of DNA methylation. Current Opinion
in Plant Biology. 11(5), 554–559.
mla: Zilberman, Daniel. “The Evolving Functions of DNA Methylation.” Current
Opinion in Plant Biology, vol. 11, no. 5, Elsevier , 2008, pp. 554–59, doi:10.1016/j.pbi.2008.07.004.
short: D. Zilberman, Current Opinion in Plant Biology 11 (2008) 554–559.
date_created: 2021-06-08T13:13:37Z
date_published: 2008-10-01T00:00:00Z
date_updated: 2021-12-14T08:54:07Z
department:
- _id: DaZi
doi: 10.1016/j.pbi.2008.07.004
extern: '1'
external_id:
pmid:
- '18774331'
intvolume: ' 11'
issue: '5'
language:
- iso: eng
month: '10'
oa_version: None
page: 554-559
pmid: 1
publication: Current Opinion in Plant Biology
publication_identifier:
issn:
- 1369-5266
publication_status: published
publisher: 'Elsevier '
quality_controlled: '1'
scopus_import: '1'
status: public
title: The evolving functions of DNA methylation
type: journal_article
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
volume: 11
year: '2008'
...
---
_id: '965'
abstract:
- lang: eng
text: We give many examples of applying Bogoliubov's forest formula to iterative
solutions of various nonlinear equations. The same formula describes an extremely
wide class of objects, from an ordinary quadratic equation to renormalization
in quantum field theory.
acknowledgement: |-
This work is supported in part by the Dynasty Foundation (M. N. S.), the
Russian Foundation for Basic Research (Grant No
s. 07-02-00878 and 07-02-00645), a joint grant (Grant
No. 06-01-92059-CE), the NWO (Project No. 047.011.2004.026), INTAS (Grant No. 05-1000008-7865), the
Program for Supporting Leading Scientific School
s (Grant No. NSh-8004.2006.2), and also by a project
(Project No. ANR-05-BLAN-0029-01, A. Yu. M.).
author:
- first_name: Alexei
full_name: Morozov, Alexei Y
last_name: Morozov
- first_name: Maksym
full_name: Maksym Serbyn
id: 47809E7E-F248-11E8-B48F-1D18A9856A87
last_name: Serbyn
orcid: 0000-0002-2399-5827
citation:
ama: Morozov A, Serbyn M. Nonlinear algebra and Bogoliubov’s recursion. Theoretical
and Mathematical Physics. 2008;154(2):270-293. doi:10.1007/s11232-008-0026-7
apa: Morozov, A., & Serbyn, M. (2008). Nonlinear algebra and Bogoliubov’s recursion.
Theoretical and Mathematical Physics. Elsevier. https://doi.org/10.1007/s11232-008-0026-7
chicago: Morozov, Alexei, and Maksym Serbyn. “Nonlinear Algebra and Bogoliubov’s
Recursion.” Theoretical and Mathematical Physics. Elsevier, 2008. https://doi.org/10.1007/s11232-008-0026-7.
ieee: A. Morozov and M. Serbyn, “Nonlinear algebra and Bogoliubov’s recursion,”
Theoretical and Mathematical Physics, vol. 154, no. 2. Elsevier, pp. 270–293,
2008.
ista: Morozov A, Serbyn M. 2008. Nonlinear algebra and Bogoliubov’s recursion. Theoretical
and Mathematical Physics. 154(2), 270–293.
mla: Morozov, Alexei, and Maksym Serbyn. “Nonlinear Algebra and Bogoliubov’s Recursion.”
Theoretical and Mathematical Physics, vol. 154, no. 2, Elsevier, 2008,
pp. 270–93, doi:10.1007/s11232-008-0026-7.
short: A. Morozov, M. Serbyn, Theoretical and Mathematical Physics 154 (2008) 270–293.
date_created: 2018-12-11T11:49:26Z
date_published: 2008-01-01T00:00:00Z
date_updated: 2021-01-12T08:22:17Z
day: '01'
doi: 10.1007/s11232-008-0026-7
extern: 1
intvolume: ' 154'
issue: '2'
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/hep-th/0703258
month: '01'
oa: 1
page: 270 - 293
publication: Theoretical and Mathematical Physics
publication_status: published
publisher: Elsevier
publist_id: '6437'
quality_controlled: 0
status: public
title: Nonlinear algebra and Bogoliubov's recursion
type: journal_article
volume: 154
year: '2008'
...