---
_id: '348'
abstract:
- lang: eng
text: "Bi2S3-xTex bulk nanocomposites with crystal domain sizes in the range from
50 nm to 100 nm were obtained from the reaction of Bi2S3 nanorods with Te powder.
The thermoelectric properties of the obtained nanocomposites were analysed in
the temperature range from 0°C to 300°C. We observed how the thermoelectric properties
of the material improved with the annealing temperature, being a spark plasma
sintering process needed to maintain the material nanostructuration while maximising
its electrical properties. Finally thermoelectric dimensionless figures of merit
ZT up to 0.42 were obtained before any charge carrier concentration optimisation.
Copyright © 2014 Inderscience Enterprises Ltd.\r\n\r\n"
article_processing_charge: No
article_type: original
author:
- first_name: Doris
full_name: Cadavid, Doris
last_name: Cadavid
- first_name: Maria
full_name: Ibáñez, Maria
id: 43C61214-F248-11E8-B48F-1D18A9856A87
last_name: Ibáñez
orcid: 0000-0001-5013-2843
- first_name: Umberto
full_name: Anselmi Tamburini, Umberto
last_name: Anselmi Tamburini
- first_name: Oscar
full_name: Durá, Oscar
last_name: Durá
- first_name: Marco
full_name: De La Torre, Marco
last_name: De La Torre
- first_name: Andreu
full_name: Cabot, Andreu
last_name: Cabot
citation:
ama: Cadavid D, Ibáñez M, Anselmi Tamburini U, Durá O, De La Torre M, Cabot A. Thermoelectric
properties of bottom up assembled Bi2S 3-xTex nanocomposites. International
Journal of Nanotechnology. 2014;11(9-11):773-784. doi:10.1504/IJNT.2014.063787
apa: Cadavid, D., Ibáñez, M., Anselmi Tamburini, U., Durá, O., De La Torre, M.,
& Cabot, A. (2014). Thermoelectric properties of bottom up assembled Bi2S
3-xTex nanocomposites. International Journal of Nanotechnology. Inderscience
Enterprises Limited . https://doi.org/10.1504/IJNT.2014.063787
chicago: Cadavid, Doris, Maria Ibáñez, Umberto Anselmi Tamburini, Oscar Durá, Marco
De La Torre, and Andreu Cabot. “Thermoelectric Properties of Bottom up Assembled
Bi2S 3-XTex Nanocomposites.” International Journal of Nanotechnology. Inderscience
Enterprises Limited , 2014. https://doi.org/10.1504/IJNT.2014.063787.
ieee: D. Cadavid, M. Ibáñez, U. Anselmi Tamburini, O. Durá, M. De La Torre, and
A. Cabot, “Thermoelectric properties of bottom up assembled Bi2S 3-xTex nanocomposites,”
International Journal of Nanotechnology, vol. 11, no. 9–11. Inderscience
Enterprises Limited , pp. 773–784, 2014.
ista: Cadavid D, Ibáñez M, Anselmi Tamburini U, Durá O, De La Torre M, Cabot A.
2014. Thermoelectric properties of bottom up assembled Bi2S 3-xTex nanocomposites.
International Journal of Nanotechnology. 11(9–11), 773–784.
mla: Cadavid, Doris, et al. “Thermoelectric Properties of Bottom up Assembled Bi2S
3-XTex Nanocomposites.” International Journal of Nanotechnology, vol. 11,
no. 9–11, Inderscience Enterprises Limited , 2014, pp. 773–84, doi:10.1504/IJNT.2014.063787.
short: D. Cadavid, M. Ibáñez, U. Anselmi Tamburini, O. Durá, M. De La Torre, A.
Cabot, International Journal of Nanotechnology 11 (2014) 773–784.
date_created: 2018-12-11T11:45:57Z
date_published: 2014-01-01T00:00:00Z
date_updated: 2021-01-12T07:43:44Z
day: '01'
doi: 10.1504/IJNT.2014.063787
extern: '1'
intvolume: ' 11'
issue: 9-11
language:
- iso: eng
month: '01'
oa_version: None
page: 773 - 784
publication: International Journal of Nanotechnology
publication_status: published
publisher: 'Inderscience Enterprises Limited '
publist_id: '7476'
quality_controlled: '1'
status: public
title: Thermoelectric properties of bottom up assembled Bi2S 3-xTex nanocomposites
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 11
year: '2014'
...
---
_id: '349'
abstract:
- lang: eng
text: 'Thermoelectricity is a key technology with the potential to improve the efficiency
of energy conversion processes, which may strongly benefit from advances in the
field of nanotechnology. Nanostructured materials are very appealing for thermoelectric
applications, but the full development of their potential requires precise control
of their properties at the nanoscale. Bottom-up assembly of nanoparticles provides
access to a three-dimensional composition control at the nanoscale not attainable
in any other technology. In particular, colloidal nanoheterostructures are especially
interesting building blocks for the bottom-up production of functional nanomaterials.
In the present work, we use PbTe@PbS core-shell nanoparticles as building blocks
for the bottom-up production of PbTe-PbS nanocomposites. We used a ligand exchange
strategy and a hot press process to promote the electrical conductivity of the
nanocomposite and to increase its density. These two approaches allowed us to
improve the performance of bottom-up assembled PbTe-PbS bulk nanostructured materials. '
article_processing_charge: No
article_type: original
author:
- first_name: Silvia
full_name: Ortega, Silvia
last_name: Ortega
- first_name: Maria
full_name: Ibáñez, Maria
id: 43C61214-F248-11E8-B48F-1D18A9856A87
last_name: Ibáñez
orcid: 0000-0001-5013-2843
- first_name: Doris
full_name: Cadavid, Doris
last_name: Cadavid
- first_name: Andreu
full_name: Cabot, Andreu
last_name: Cabot
citation:
ama: Ortega S, Ibáñez M, Cadavid D, Cabot A. Bottom up processing of PbTe PbS thermoelectric
nanocomposites. International Journal of Nanotechnology. 2014;11(9-11):955-970.
doi:10.1504/IJNT.2014.063802
apa: Ortega, S., Ibáñez, M., Cadavid, D., & Cabot, A. (2014). Bottom up processing
of PbTe PbS thermoelectric nanocomposites. International Journal of Nanotechnology.
Inderscience Enterprises Limited . https://doi.org/10.1504/IJNT.2014.063802
chicago: Ortega, Silvia, Maria Ibáñez, Doris Cadavid, and Andreu Cabot. “Bottom
up Processing of PbTe PbS Thermoelectric Nanocomposites.” International Journal
of Nanotechnology. Inderscience Enterprises Limited , 2014. https://doi.org/10.1504/IJNT.2014.063802.
ieee: S. Ortega, M. Ibáñez, D. Cadavid, and A. Cabot, “Bottom up processing of PbTe
PbS thermoelectric nanocomposites,” International Journal of Nanotechnology,
vol. 11, no. 9–11. Inderscience Enterprises Limited , pp. 955–970, 2014.
ista: Ortega S, Ibáñez M, Cadavid D, Cabot A. 2014. Bottom up processing of PbTe
PbS thermoelectric nanocomposites. International Journal of Nanotechnology. 11(9–11),
955–970.
mla: Ortega, Silvia, et al. “Bottom up Processing of PbTe PbS Thermoelectric Nanocomposites.”
International Journal of Nanotechnology, vol. 11, no. 9–11, Inderscience
Enterprises Limited , 2014, pp. 955–70, doi:10.1504/IJNT.2014.063802.
short: S. Ortega, M. Ibáñez, D. Cadavid, A. Cabot, International Journal of Nanotechnology
11 (2014) 955–970.
date_created: 2018-12-11T11:45:57Z
date_published: 2014-07-21T00:00:00Z
date_updated: 2021-01-12T07:43:48Z
day: '21'
doi: 10.1504/IJNT.2014.063802
extern: '1'
intvolume: ' 11'
issue: 9-11
language:
- iso: eng
month: '07'
oa_version: None
page: 955 - 970
publication: International Journal of Nanotechnology
publication_status: published
publisher: 'Inderscience Enterprises Limited '
publist_id: '7477'
quality_controlled: '1'
status: public
title: Bottom up processing of PbTe PbS thermoelectric nanocomposites
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 11
year: '2014'
...
---
_id: '350'
abstract:
- lang: eng
text: Herein, a colloidal synthetic route to produce highly monodisperse Cu2HgGeSe4
(CHGSe) nanoparticles (NPs) is presented in detail. The high yield of the developed
procedure allowed the production of CHGSe NPs at the gram scale. A thorough analysis
of their structural and optical properties is shown. CHGSe NPs displayed poly-tetrahedral
morphology and narrow size distributions with average size in the range of 10–40
nm and size dispersions below 10 %. A 1.6 eV optical band gap was measured by
mean of UV–Vis. By adjusting the cation ratio, an effective control of their electrical
conductivity is achieved. The prepared NPs are used as building blocks for the
production of CHGSe bulk nanostructured materials. The thermoelectric properties
of CHGSe nanomaterials are studied in the temperature range from 300 to 730 K.
CHGSe nanomaterials reached electrical conductivities up to 5 × 104 S m−1, Seebeck
coefficients above 100 μV K−1, and thermal conductivities below 1.0 W m−1 K−1
which translated into thermoelectric figures of merit up to 0.34 at 730 K.
acknowledgement: The research was supported by the European Regional Development Funds
(ERDF, ‘‘FEDER Programa Competitivitat de Catalunya 2007–2013’’).
article_processing_charge: No
article_type: original
author:
- first_name: Wenhua
full_name: Li, Wenhua
last_name: Li
- first_name: Maria
full_name: Ibáñez, Maria
id: 43C61214-F248-11E8-B48F-1D18A9856A87
last_name: Ibáñez
orcid: 0000-0001-5013-2843
- first_name: Doris
full_name: Cadavid, Doris
last_name: Cadavid
- first_name: Reza
full_name: Zamani, Reza
last_name: Zamani
- first_name: Javier
full_name: Rubio Garcia, Javier
last_name: Rubio Garcia
- first_name: Stéphane
full_name: Gorsse, Stéphane
last_name: Gorsse
- first_name: Joan
full_name: Morante, Joan
last_name: Morante
- first_name: Jordi
full_name: Arbiol, Jordi
last_name: Arbiol
- first_name: Andreu
full_name: Cabot, Andreu
last_name: Cabot
citation:
ama: 'Li W, Ibáñez M, Cadavid D, et al. Colloidal synthesis and functional properties
of quaternary Cu based semiconductors: Cu2HgGeSe4. Journal of Nanoparticle
Research. 2014;16(3). doi:10.1007/s11051-014-2297-2'
apa: 'Li, W., Ibáñez, M., Cadavid, D., Zamani, R., Rubio Garcia, J., Gorsse, S.,
… Cabot, A. (2014). Colloidal synthesis and functional properties of quaternary
Cu based semiconductors: Cu2HgGeSe4. Journal of Nanoparticle Research.
Kluwer. https://doi.org/10.1007/s11051-014-2297-2'
chicago: 'Li, Wenhua, Maria Ibáñez, Doris Cadavid, Reza Zamani, Javier Rubio Garcia,
Stéphane Gorsse, Joan Morante, Jordi Arbiol, and Andreu Cabot. “Colloidal Synthesis
and Functional Properties of Quaternary Cu Based Semiconductors: Cu2HgGeSe4.”
Journal of Nanoparticle Research. Kluwer, 2014. https://doi.org/10.1007/s11051-014-2297-2.'
ieee: 'W. Li et al., “Colloidal synthesis and functional properties of quaternary
Cu based semiconductors: Cu2HgGeSe4,” Journal of Nanoparticle Research,
vol. 16, no. 3. Kluwer, 2014.'
ista: 'Li W, Ibáñez M, Cadavid D, Zamani R, Rubio Garcia J, Gorsse S, Morante J,
Arbiol J, Cabot A. 2014. Colloidal synthesis and functional properties of quaternary
Cu based semiconductors: Cu2HgGeSe4. Journal of Nanoparticle Research. 16(3).'
mla: 'Li, Wenhua, et al. “Colloidal Synthesis and Functional Properties of Quaternary
Cu Based Semiconductors: Cu2HgGeSe4.” Journal of Nanoparticle Research,
vol. 16, no. 3, Kluwer, 2014, doi:10.1007/s11051-014-2297-2.'
short: W. Li, M. Ibáñez, D. Cadavid, R. Zamani, J. Rubio Garcia, S. Gorsse, J. Morante,
J. Arbiol, A. Cabot, Journal of Nanoparticle Research 16 (2014).
date_created: 2018-12-11T11:45:58Z
date_published: 2014-02-18T00:00:00Z
date_updated: 2021-01-12T07:43:53Z
day: '18'
doi: 10.1007/s11051-014-2297-2
extern: '1'
intvolume: ' 16'
issue: '3'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://hal.archives-ouvertes.fr/hal-00959322/
month: '02'
oa: 1
oa_version: Submitted Version
publication: Journal of Nanoparticle Research
publication_status: published
publisher: Kluwer
publist_id: '7478'
quality_controlled: '1'
status: public
title: 'Colloidal synthesis and functional properties of quaternary Cu based semiconductors:
Cu2HgGeSe4'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 16
year: '2014'
...
---
_id: '355'
abstract:
- lang: eng
text: 'We report on the photocatalytic hydrogen evolution under full-arc light irradiation
of CuIn1-xGaxS2 wurtzite nanocrystals in the presence of SO3 2- and S2- as sacrificial
reagents. We analyzed the hydrogen generation rate as a function of the Ga content
and associated it with the energy band positions. For photocatalytic water splitting,
the CuInS2 bandgap is slightly too low to efficiently overcome the reaction over-potential.
The presence of Ga shifts up the CuInS2 conduction band edge providing a larger
driving force for photogenerated carriers to activate the water splitting reduction
reaction. The larger the Ga content, the more energetically favorable the electron
injection, and thus a more efficient use of the photogenerated carriers is reached.
However, the band gap increase associated with the Ga incorporation reduces the
concentration of photogenerated carriers available for water splitting, and consequently
a lower hydrogen conversion rate is obtained for very high Ga contents. The optimum
Ga concentration was experimentally found at CuIn0.3Ga0.7S2. '
acknowledgement: "The research was supported by the European Regional Development\r\nFunds
(ERDF, “FEDER Programa Competitivitat de\r\nCatalunya 2007-2013”) and the Framework
7 program under\r\nproject SCALENANO (FP7-NMP-ENERGY-2011-284486)."
article_processing_charge: No
article_type: original
author:
- first_name: Xuelian
full_name: Yu, Xuelian
last_name: Yu
- first_name: Xiaoqiang
full_name: An, Xiaoqiang
last_name: An
- first_name: Alexey
full_name: Shavel, Alexey
last_name: Shavel
- first_name: Maria
full_name: Ibáñez, Maria
id: 43C61214-F248-11E8-B48F-1D18A9856A87
last_name: Ibáñez
orcid: 0000-0001-5013-2843
- first_name: Andreu
full_name: Cabot, Andreu
last_name: Cabot
citation:
ama: Yu X, An X, Shavel A, Ibáñez M, Cabot A. The effect of the Ga content on the
photocatalytic hydrogen evolution of CuIn1-xGaxS2 nanocrystals. Journal of
Materials Chemistry A. 2014;2(31):12317-12322. doi:10.1039/c4ta01315h
apa: Yu, X., An, X., Shavel, A., Ibáñez, M., & Cabot, A. (2014). The effect
of the Ga content on the photocatalytic hydrogen evolution of CuIn1-xGaxS2 nanocrystals.
Journal of Materials Chemistry A. Royal Society of Chemistry. https://doi.org/10.1039/c4ta01315h
chicago: Yu, Xuelian, Xiaoqiang An, Alexey Shavel, Maria Ibáñez, and Andreu Cabot.
“The Effect of the Ga Content on the Photocatalytic Hydrogen Evolution of CuIn1-XGaxS2
Nanocrystals.” Journal of Materials Chemistry A. Royal Society of Chemistry,
2014. https://doi.org/10.1039/c4ta01315h.
ieee: X. Yu, X. An, A. Shavel, M. Ibáñez, and A. Cabot, “The effect of the Ga content
on the photocatalytic hydrogen evolution of CuIn1-xGaxS2 nanocrystals,” Journal
of Materials Chemistry A, vol. 2, no. 31. Royal Society of Chemistry, pp.
12317–12322, 2014.
ista: Yu X, An X, Shavel A, Ibáñez M, Cabot A. 2014. The effect of the Ga content
on the photocatalytic hydrogen evolution of CuIn1-xGaxS2 nanocrystals. Journal
of Materials Chemistry A. 2(31), 12317–12322.
mla: Yu, Xuelian, et al. “The Effect of the Ga Content on the Photocatalytic Hydrogen
Evolution of CuIn1-XGaxS2 Nanocrystals.” Journal of Materials Chemistry A,
vol. 2, no. 31, Royal Society of Chemistry, 2014, pp. 12317–22, doi:10.1039/c4ta01315h.
short: X. Yu, X. An, A. Shavel, M. Ibáñez, A. Cabot, Journal of Materials Chemistry
A 2 (2014) 12317–12322.
date_created: 2018-12-11T11:45:59Z
date_published: 2014-08-21T00:00:00Z
date_updated: 2021-01-12T07:44:14Z
day: '21'
doi: 10.1039/c4ta01315h
extern: '1'
intvolume: ' 2'
issue: '31'
language:
- iso: eng
month: '08'
oa_version: None
page: 12317 - 12322
publication: Journal of Materials Chemistry A
publication_status: published
publisher: Royal Society of Chemistry
publist_id: '7471'
quality_controlled: '1'
status: public
title: The effect of the Ga content on the photocatalytic hydrogen evolution of CuIn1-xGaxS2
nanocrystals
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 2
year: '2014'
...
---
_id: '357'
abstract:
- lang: eng
text: 'Near-resonant Raman scattering measurements of zinc sulfide nanoparticles
and thin films have been made and correlated to grain and particle size, respectively,
using a 325 nm wavelength excitation source. The area ratios between the first,
second, and third order peaks of ZnS identified as the T 2(LO) mode decrease with
increasing ZnS grain size. This is an effect attributed to changes in the bandgap
energy from quantum confinement due to the varying grain size between the films/particles,
as noted by a shift in the room temperature photoluminescence emission corresponding
to the free exciton emission energy. While Raman scattering spectroscopy is typically
limited to identification of phases and their crystalline properties, it is possible
to attain more than such straightforward information by calibrating the spectral
features to variations between sets of samples. These results open the possibility
of making a quantitative grain size estimation in ZnS thin films and nanostructures,
as well as in other material systems where ZnS may be expected as a secondary
phase, such as Cu2ZnSnS4. Additionally, more commonly used excitation wavelengths
for Raman scattering, such as 514 and 532 nm, are shown to be of limited use in
characterizing ZnS thin films due to the extremely low Raman scattering efficiency
of ZnS in films with sub-micron thicknesses. '
acknowledgement: "This research was supported by the People Programme\r\n(Marie Curie
Actions) of the European Union's Seventh Framework\r\nProgramme under REA grant
agreement number 269167\r\n(PVICOKEST) and the Spanish Ministerio de Economía y\r\nCompetividad
(MINECO) under KEST-PV (ref. ENE2010-\r\n121541-C03-01/02). Authors from IREC belong
to the M-2E\r\n(Electronic Materials for Energy) Consolidated Research\r\nGroup
and the XaRMAE Network of Excellence on Materials\r\nfor Energy of the “Generalitat
de Catalunya”. A. Fairbrother\r\nthanks the MINECO for support via the FPU program\r\n(FPU12/05508),
V. Izquierdo for the Juan de la Cierva program\r\n(JCI-2011-10782), and E. Saucedo
for the Ramón y Cajal\r\nprogram (RYC-2011-09212)."
article_processing_charge: No
article_type: original
author:
- first_name: Andrew
full_name: Fairbrother, Andrew
last_name: Fairbrother
- first_name: Victor
full_name: Izquierdo Roca, Victor
last_name: Izquierdo Roca
- first_name: Xavier
full_name: Fontané, Xavier
last_name: Fontané
- first_name: Maria
full_name: Ibáñez, Maria
id: 43C61214-F248-11E8-B48F-1D18A9856A87
last_name: Ibáñez
orcid: 0000-0001-5013-2843
- first_name: Andreu
full_name: Cabot, Andreu
last_name: Cabot
- first_name: Edgardo
full_name: Saucedo, Edgardo
last_name: Saucedo
- first_name: Alejandro
full_name: Pérez Rodríguez, Alejandro
last_name: Pérez Rodríguez
citation:
ama: 'Fairbrother A, Izquierdo Roca V, Fontané X, et al. ZnS grain size effects
on near-resonant Raman scattering: Optical non-destructive grain size estimation.
CrystEngComm. 2014;16(20):4120-4125. doi:10.1039/c3ce42578a'
apa: 'Fairbrother, A., Izquierdo Roca, V., Fontané, X., Ibáñez, M., Cabot, A., Saucedo,
E., & Pérez Rodríguez, A. (2014). ZnS grain size effects on near-resonant
Raman scattering: Optical non-destructive grain size estimation. CrystEngComm.
Royal Society of Chemistry. https://doi.org/10.1039/c3ce42578a'
chicago: 'Fairbrother, Andrew, Victor Izquierdo Roca, Xavier Fontané, Maria Ibáñez,
Andreu Cabot, Edgardo Saucedo, and Alejandro Pérez Rodríguez. “ZnS Grain Size
Effects on Near-Resonant Raman Scattering: Optical Non-Destructive Grain Size
Estimation.” CrystEngComm. Royal Society of Chemistry, 2014. https://doi.org/10.1039/c3ce42578a.'
ieee: 'A. Fairbrother et al., “ZnS grain size effects on near-resonant Raman
scattering: Optical non-destructive grain size estimation,” CrystEngComm,
vol. 16, no. 20. Royal Society of Chemistry, pp. 4120–4125, 2014.'
ista: 'Fairbrother A, Izquierdo Roca V, Fontané X, Ibáñez M, Cabot A, Saucedo E,
Pérez Rodríguez A. 2014. ZnS grain size effects on near-resonant Raman scattering:
Optical non-destructive grain size estimation. CrystEngComm. 16(20), 4120–4125.'
mla: 'Fairbrother, Andrew, et al. “ZnS Grain Size Effects on Near-Resonant Raman
Scattering: Optical Non-Destructive Grain Size Estimation.” CrystEngComm,
vol. 16, no. 20, Royal Society of Chemistry, 2014, pp. 4120–25, doi:10.1039/c3ce42578a.'
short: A. Fairbrother, V. Izquierdo Roca, X. Fontané, M. Ibáñez, A. Cabot, E. Saucedo,
A. Pérez Rodríguez, CrystEngComm 16 (2014) 4120–4125.
date_created: 2018-12-11T11:46:00Z
date_published: 2014-05-28T00:00:00Z
date_updated: 2021-01-12T07:44:22Z
day: '28'
doi: 10.1039/c3ce42578a
extern: '1'
intvolume: ' 16'
issue: '20'
language:
- iso: eng
month: '05'
oa_version: None
page: 4120 - 4125
publication: CrystEngComm
publication_status: published
publisher: Royal Society of Chemistry
publist_id: '7473'
quality_controlled: '1'
status: public
title: 'ZnS grain size effects on near-resonant Raman scattering: Optical non-destructive
grain size estimation'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 16
year: '2014'
...
---
_id: '358'
abstract:
- lang: eng
text: Monodispersed Pt3Sn nanoparticles were prepared through a mild thermal synthesis
in the presence of surfactants. The performance of Pt3Sn for the electrooxidation
of ethanol and adsorbed carbon monoxide (COad) in acid medium was studied by a
combination of electrochemical and insitu spectroscopic methods, namely, infrared
reflection absorption spectroscopy and differential electrochemical mass spectrometry
(DEMS), and the results were compared to those obtained with the use of Pt black.
The formation of the Pt3Sn solid solution promoted the oxidation of COad at less-positive
potentials than those required for Pt black. Also, the electrooxidation of ethanol,
especially at lower potentials, was more favorable with Pt3Sn, as deduced from
the higher faradaic currents recorded during the ethanol oxidation reaction (EOR).
However, the distribution of products as deduced by DEMS analysis suggested that
the formation of C1 products, CO2 inclusive, is less significant on Pt3Sn than
on Pt. In fact, the higher faradaic current recorded with the former catalyst
can be attributed to the greater amounts of acetaldehyde and acetic acid formed.
After the EOR, the surface of both Pt and Pt3Sn remained covered by ethanol adsorbates.
Whereas C2 fragments were the main adsorbates at the surface of Pt3Sn after the
EOR, both C1 and C2 species remained adsorbed at Pt black.
acknowledgement: The Spanish Ministry of Science and Innovation (Project ENE2010–15381)
and the CSIC (Project 201080E116) are acknowledged for financial support.
article_processing_charge: No
article_type: original
author:
- first_name: Tirma
full_name: Herranz, Tirma
last_name: Herranz
- first_name: Maria
full_name: Ibáñez, Maria
id: 43C61214-F248-11E8-B48F-1D18A9856A87
last_name: Ibáñez
orcid: 0000-0001-5013-2843
- first_name: José
full_name: Gómez De La Fuente, José
last_name: Gómez De La Fuente
- first_name: Francisco
full_name: Pérez Alonso, Francisco
last_name: Pérez Alonso
- first_name: Miguel
full_name: Peña, Miguel
last_name: Peña
- first_name: Andreu
full_name: Cabot, Andreu
last_name: Cabot
- first_name: Sergio
full_name: Rojas, Sergio
last_name: Rojas
citation:
ama: Herranz T, Ibáñez M, Gómez De La Fuente J, et al. In situ study of ethanol
electrooxidation on monodispersed Pt inf 3 inf Sn nanoparticles. ChemElectroChem.
2014;1(5):885-895. doi:10.1002/celc.201300254
apa: Herranz, T., Ibáñez, M., Gómez De La Fuente, J., Pérez Alonso, F., Peña, M.,
Cabot, A., & Rojas, S. (2014). In situ study of ethanol electrooxidation on
monodispersed Pt inf 3 inf Sn nanoparticles. ChemElectroChem. Wiley-Blackwell.
https://doi.org/10.1002/celc.201300254
chicago: Herranz, Tirma, Maria Ibáñez, José Gómez De La Fuente, Francisco Pérez
Alonso, Miguel Peña, Andreu Cabot, and Sergio Rojas. “In Situ Study of Ethanol
Electrooxidation on Monodispersed Pt Inf 3 Inf Sn Nanoparticles.” ChemElectroChem.
Wiley-Blackwell, 2014. https://doi.org/10.1002/celc.201300254.
ieee: T. Herranz et al., “In situ study of ethanol electrooxidation on monodispersed
Pt inf 3 inf Sn nanoparticles,” ChemElectroChem, vol. 1, no. 5. Wiley-Blackwell,
pp. 885–895, 2014.
ista: Herranz T, Ibáñez M, Gómez De La Fuente J, Pérez Alonso F, Peña M, Cabot A,
Rojas S. 2014. In situ study of ethanol electrooxidation on monodispersed Pt inf
3 inf Sn nanoparticles. ChemElectroChem. 1(5), 885–895.
mla: Herranz, Tirma, et al. “In Situ Study of Ethanol Electrooxidation on Monodispersed
Pt Inf 3 Inf Sn Nanoparticles.” ChemElectroChem, vol. 1, no. 5, Wiley-Blackwell,
2014, pp. 885–95, doi:10.1002/celc.201300254.
short: T. Herranz, M. Ibáñez, J. Gómez De La Fuente, F. Pérez Alonso, M. Peña, A.
Cabot, S. Rojas, ChemElectroChem 1 (2014) 885–895.
date_created: 2018-12-11T11:46:00Z
date_published: 2014-03-03T00:00:00Z
date_updated: 2021-01-12T07:44:26Z
day: '03'
doi: 10.1002/celc.201300254
extern: '1'
intvolume: ' 1'
issue: '5'
language:
- iso: eng
month: '03'
oa_version: None
page: 885 - 895
publication: ChemElectroChem
publication_status: published
publisher: Wiley-Blackwell
publist_id: '7474'
quality_controlled: '1'
status: public
title: In situ study of ethanol electrooxidation on monodispersed Pt inf 3 inf Sn
nanoparticles
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 1
year: '2014'
...
---
_id: '359'
abstract:
- lang: eng
text: An appropriate way of realizing property nanoengineering in complex quaternary
chalcogenide nanocrystals is presented for Cu2Cd xSnSey(CCTSe) polypods. The pivotal
role of the polarity in determining morphology, growth, and the polytypic branching
mechanism is demonstrated. Polarity is considered to be responsible for the formation
of an initial seed that takes the form of a tetrahedron with four cation-polar
facets. Size and shape confinement of the intermediate pentatetrahedral seed is
also attributed to polarity, as their external facets are anion-polar. The final
polypod extensions also branch out as a result of a cation-polarity-driven mechanism.
Aberration-corrected scanning transmission electron microscopy is used to identify
stannite cation ordering, while ab initio studies are used to show the influence
of cation ordering/distortion, stoichiometry, and polytypic structural change
on the electronic band structure.
acknowledgement: The research leading to these results has received funding from the
European Union Seventh Framework Programme under grant agreement 312483-ESTEEM2
(Integrated Infrastructure InitiativeI3) for using advance electron microscopes
at ER-C Jülich. J.A. acknowledges the funding from the Spanish MICINN project MAT2010-15138
(COPEON) and Generalitat de Catalunya 2009 SGR 770. R.R.Z. acknowledges the former.
The authors would also like to thank the TEM facilities in Serveis Cientificotecnics
from Universitat de Barcelona. N.G.-C. acknowledges the Spanish MECD for her Ph.D.
grant in the FPU program. JR and RZ acknowledge funding from MULTICAT and NANOENESTO
projects.
article_processing_charge: No
article_type: original
author:
- first_name: Reza
full_name: Zamani, Reza
last_name: Zamani
- first_name: Maria
full_name: Ibáñez, Maria
id: 43C61214-F248-11E8-B48F-1D18A9856A87
last_name: Ibáñez
orcid: 0000-0001-5013-2843
- first_name: Martina
full_name: Luysberg, Martina
last_name: Luysberg
- first_name: Nuria
full_name: García Castelló, Nuria
last_name: García Castelló
- first_name: Lothar
full_name: Houben, Lothar
last_name: Houben
- first_name: Joan
full_name: Prades, Joan
last_name: Prades
- first_name: Vincenzo
full_name: Grillo, Vincenzo
last_name: Grillo
- first_name: Rafal
full_name: Dunin Borkowski, Rafal
last_name: Dunin Borkowski
- first_name: Joan
full_name: Morante, Joan
last_name: Morante
- first_name: Andreu
full_name: Cabot, Andreu
last_name: Cabot
- first_name: Jordi
full_name: Arbiol, Jordi
last_name: Arbiol
citation:
ama: Zamani R, Ibáñez M, Luysberg M, et al. Polarity-driven polytypic branching
in Cu-based quaternary chalcogenide nanostructures. ACS Nano. 2014;8(3):2290-2301.
doi:10.1021/nn405747h
apa: Zamani, R., Ibáñez, M., Luysberg, M., García Castelló, N., Houben, L., Prades,
J., … Arbiol, J. (2014). Polarity-driven polytypic branching in Cu-based quaternary
chalcogenide nanostructures. ACS Nano. American Chemical Society. https://doi.org/10.1021/nn405747h
chicago: Zamani, Reza, Maria Ibáñez, Martina Luysberg, Nuria García Castelló, Lothar
Houben, Joan Prades, Vincenzo Grillo, et al. “Polarity-Driven Polytypic Branching
in Cu-Based Quaternary Chalcogenide Nanostructures.” ACS Nano. American
Chemical Society, 2014. https://doi.org/10.1021/nn405747h.
ieee: R. Zamani et al., “Polarity-driven polytypic branching in Cu-based
quaternary chalcogenide nanostructures,” ACS Nano, vol. 8, no. 3. American
Chemical Society, pp. 2290–2301, 2014.
ista: Zamani R, Ibáñez M, Luysberg M, García Castelló N, Houben L, Prades J, Grillo
V, Dunin Borkowski R, Morante J, Cabot A, Arbiol J. 2014. Polarity-driven polytypic
branching in Cu-based quaternary chalcogenide nanostructures. ACS Nano. 8(3),
2290–2301.
mla: Zamani, Reza, et al. “Polarity-Driven Polytypic Branching in Cu-Based Quaternary
Chalcogenide Nanostructures.” ACS Nano, vol. 8, no. 3, American Chemical
Society, 2014, pp. 2290–301, doi:10.1021/nn405747h.
short: R. Zamani, M. Ibáñez, M. Luysberg, N. García Castelló, L. Houben, J. Prades,
V. Grillo, R. Dunin Borkowski, J. Morante, A. Cabot, J. Arbiol, ACS Nano 8 (2014)
2290–2301.
date_created: 2018-12-11T11:46:01Z
date_published: 2014-03-25T00:00:00Z
date_updated: 2021-01-12T07:44:30Z
day: '25'
doi: 10.1021/nn405747h
extern: '1'
intvolume: ' 8'
issue: '3'
language:
- iso: eng
month: '03'
oa_version: None
page: 2290 - 2301
publication: ACS Nano
publication_status: published
publisher: American Chemical Society
publist_id: '7475'
quality_controlled: '1'
status: public
title: Polarity-driven polytypic branching in Cu-based quaternary chalcogenide nanostructures
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 8
year: '2014'
...
---
_id: '451'
abstract:
- lang: eng
text: We introduce algorithms for the computation of homology, cohomology, and related
operations on cubical cell complexes, using the technique based on a chain contraction
from the original chain complex to a reduced one that represents its homology.
This work is based on previous results for simplicial complexes, and uses Serre’s
diagonalization for cubical cells. An implementation in C++ of the introduced
algorithms is available at http://www.pawelpilarczyk.com/chaincon/ together with
some examples. The paper is self-contained as much as possible, and is written
at a very elementary level, so that basic knowledge of algebraic topology should
be sufficient to follow it.
acknowledgement: 'This research was partially supported from Fundo Europeu de Desenvolvimento
Regional (FEDER) through COMPETE – Programa Operacional Factores de Compe titividade
(POFC) and from the Portuguese national funds through Fundacaoparaa Ciencia e a
Tecnologia (FCT) in the framework of the research project FCOMP-01-0124-FEDER-010645(ref.
FCT PTDC/MAT/098871/2008), as well as from the funds distributed through the European
Science Foundation (ESF) Research Networking Programme on “Applied and Computational
Algebraic Topology” (ACAT). P.Real was additionally supported by the Spanish Ministry
of Science and Innovation, project no. MTM2009-12716. '
author:
- first_name: Pawel
full_name: Pawel Pilarczyk
id: 3768D56A-F248-11E8-B48F-1D18A9856A87
last_name: Pilarczyk
- first_name: Pedro
full_name: Real, Pedro
last_name: Real
citation:
ama: Pilarczyk P, Real P. Computation of cubical homology, cohomology, and (co)homological
operations via chain contraction. Advances in Computational Mathematics.
2014;41(1):253-275. doi:10.1007/s10444-014-9356-1
apa: Pilarczyk, P., & Real, P. (2014). Computation of cubical homology, cohomology,
and (co)homological operations via chain contraction. Advances in Computational
Mathematics. Kluwer. https://doi.org/10.1007/s10444-014-9356-1
chicago: Pilarczyk, Pawel, and Pedro Real. “Computation of Cubical Homology, Cohomology,
and (Co)Homological Operations via Chain Contraction.” Advances in Computational
Mathematics. Kluwer, 2014. https://doi.org/10.1007/s10444-014-9356-1.
ieee: P. Pilarczyk and P. Real, “Computation of cubical homology, cohomology, and
(co)homological operations via chain contraction,” Advances in Computational
Mathematics, vol. 41, no. 1. Kluwer, pp. 253–275, 2014.
ista: Pilarczyk P, Real P. 2014. Computation of cubical homology, cohomology, and
(co)homological operations via chain contraction. Advances in Computational Mathematics.
41(1), 253–275.
mla: Pilarczyk, Pawel, and Pedro Real. “Computation of Cubical Homology, Cohomology,
and (Co)Homological Operations via Chain Contraction.” Advances in Computational
Mathematics, vol. 41, no. 1, Kluwer, 2014, pp. 253–75, doi:10.1007/s10444-014-9356-1.
short: P. Pilarczyk, P. Real, Advances in Computational Mathematics 41 (2014) 253–275.
date_created: 2018-12-11T11:46:33Z
date_published: 2014-01-01T00:00:00Z
date_updated: 2021-01-12T07:59:20Z
day: '01'
doi: 10.1007/s10444-014-9356-1
extern: 1
intvolume: ' 41'
issue: '1'
main_file_link:
- open_access: '1'
url: https://idus.us.es/xmlui/handle/11441/38719
month: '01'
oa: 1
page: 253 - 275
publication: Advances in Computational Mathematics
publication_status: published
publisher: Kluwer
publist_id: '7371'
quality_controlled: 0
status: public
title: Computation of cubical homology, cohomology, and (co)homological operations
via chain contraction
type: journal_article
volume: 41
year: '2014'
...
---
_id: '1999'
abstract:
- lang: eng
text: Selection for disease control is believed to have contributed to shape the
organisation of insect societies — leading to interaction patterns that mitigate
disease transmission risk within colonies, conferring them ‘organisational immunity’.
Recent studies combining epidemiological models with social network analysis have
identified general properties of interaction networks that may hinder propagation
of infection within groups. These can be prophylactic and/or induced upon pathogen
exposure. Here we review empirical evidence for these two types of organisational
immunity in social insects and describe the individual-level behaviours that underlie
it. We highlight areas requiring further investigation, and emphasise the need
for tighter links between theory and empirical research and between individual-level
and collective-level analyses.
article_processing_charge: No
author:
- first_name: Nathalie
full_name: Stroeymeyt, Nathalie
last_name: Stroeymeyt
- first_name: Barbara E
full_name: Casillas Perez, Barbara E
id: 351ED2AA-F248-11E8-B48F-1D18A9856A87
last_name: Casillas Perez
- first_name: Sylvia
full_name: Cremer, Sylvia
id: 2F64EC8C-F248-11E8-B48F-1D18A9856A87
last_name: Cremer
orcid: 0000-0002-2193-3868
citation:
ama: Stroeymeyt N, Casillas Perez BE, Cremer S. Organisational immunity in social
insects. Current Opinion in Insect Science. 2014;5(1):1-15. doi:10.1016/j.cois.2014.09.001
apa: Stroeymeyt, N., Casillas Perez, B. E., & Cremer, S. (2014). Organisational
immunity in social insects. Current Opinion in Insect Science. Elsevier.
https://doi.org/10.1016/j.cois.2014.09.001
chicago: Stroeymeyt, Nathalie, Barbara E Casillas Perez, and Sylvia Cremer. “Organisational
Immunity in Social Insects.” Current Opinion in Insect Science. Elsevier,
2014. https://doi.org/10.1016/j.cois.2014.09.001.
ieee: N. Stroeymeyt, B. E. Casillas Perez, and S. Cremer, “Organisational immunity
in social insects,” Current Opinion in Insect Science, vol. 5, no. 1. Elsevier,
pp. 1–15, 2014.
ista: Stroeymeyt N, Casillas Perez BE, Cremer S. 2014. Organisational immunity in
social insects. Current Opinion in Insect Science. 5(1), 1–15.
mla: Stroeymeyt, Nathalie, et al. “Organisational Immunity in Social Insects.” Current
Opinion in Insect Science, vol. 5, no. 1, Elsevier, 2014, pp. 1–15, doi:10.1016/j.cois.2014.09.001.
short: N. Stroeymeyt, B.E. Casillas Perez, S. Cremer, Current Opinion in Insect
Science 5 (2014) 1–15.
corr_author: '1'
date_created: 2018-12-11T11:55:08Z
date_published: 2014-11-01T00:00:00Z
date_updated: 2026-04-08T14:02:12Z
day: '01'
department:
- _id: SyCr
doi: 10.1016/j.cois.2014.09.001
ec_funded: 1
external_id:
isi:
- '000209578900002'
intvolume: ' 5'
isi: 1
issue: '1'
language:
- iso: eng
month: '11'
oa_version: None
page: 1 - 15
project:
- _id: 25DC711C-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '243071'
name: 'Social Vaccination in Ant Colonies: from Individual Mechanisms to Society
Effects'
publication: Current Opinion in Insect Science
publication_status: published
publisher: Elsevier
publist_id: '5080'
quality_controlled: '1'
related_material:
record:
- id: '6383'
relation: dissertation_contains
- id: '6435'
relation: dissertation_contains
status: public
scopus_import: '1'
status: public
title: Organisational immunity in social insects
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 5
year: '2014'
...
---
_id: '2084'
abstract:
- lang: eng
text: Receptor tyrosine kinases (RTKs) are a large family of cell surface receptors
that sense growth factors and hormones and regulate a variety of cell behaviours
in health and disease. Contactless activation of RTKs with spatial and temporal
precision is currently not feasible. Here, we generated RTKs that are insensitive
to endogenous ligands but can be selectively activated by low-intensity blue light.
We screened light-oxygen-voltage (LOV)-sensing domains for their ability to activate
RTKs by light-activated dimerization. Incorporation of LOV domains found in aureochrome
photoreceptors of stramenopiles resulted in robust activation of the fibroblast
growth factor receptor 1 (FGFR1), epidermal growth factor receptor (EGFR) and
rearranged during transfection (RET). In human cancer and endothelial cells, light
induced cellular signalling with spatial and temporal precision. Furthermore,
light faithfully mimicked complex mitogenic and morphogenic cell behaviour induced
by growth factors. RTKs under optical control (Opto-RTKs) provide a powerful optogenetic
approach to actuate cellular signals and manipulate cell behaviour.
acknowledgement: European Union Seventh Framework Programme; Human Frontier Science
Program; Oesterreichische Nationalbank Anniversary Fund 14211; Austrian Research
Promotion Agency; FemTech
article_processing_charge: No
author:
- first_name: Michael
full_name: Grusch, Michael
last_name: Grusch
- first_name: Karin
full_name: Schelch, Karin
last_name: Schelch
- first_name: Robert
full_name: Riedler, Robert
last_name: Riedler
- first_name: Eva
full_name: Gschaider-Reichhart, Eva
id: 3FEE232A-F248-11E8-B48F-1D18A9856A87
last_name: Gschaider-Reichhart
orcid: 0000-0002-7218-7738
- first_name: Christopher
full_name: Differ, Christopher
last_name: Differ
- first_name: Walter
full_name: Berger, Walter
last_name: Berger
- first_name: Álvaro
full_name: Inglés Prieto, Álvaro
id: 2A9DB292-F248-11E8-B48F-1D18A9856A87
last_name: Inglés Prieto
orcid: 0000-0002-5409-8571
- first_name: Harald L
full_name: Janovjak, Harald L
id: 33BA6C30-F248-11E8-B48F-1D18A9856A87
last_name: Janovjak
orcid: 0000-0002-8023-9315
citation:
ama: Grusch M, Schelch K, Riedler R, et al. Spatio-temporally precise activation
of engineered receptor tyrosine kinases by light. EMBO Journal. 2014;33(15):1713-1726.
doi:10.15252/embj.201387695
apa: Grusch, M., Schelch, K., Riedler, R., Gschaider-Reichhart, E., Differ, C.,
Berger, W., … Janovjak, H. L. (2014). Spatio-temporally precise activation of
engineered receptor tyrosine kinases by light. EMBO Journal. Wiley-Blackwell.
https://doi.org/10.15252/embj.201387695
chicago: Grusch, Michael, Karin Schelch, Robert Riedler, Eva Gschaider-Reichhart,
Christopher Differ, Walter Berger, Álvaro Inglés Prieto, and Harald L Janovjak.
“Spatio-Temporally Precise Activation of Engineered Receptor Tyrosine Kinases
by Light.” EMBO Journal. Wiley-Blackwell, 2014. https://doi.org/10.15252/embj.201387695.
ieee: M. Grusch et al., “Spatio-temporally precise activation of engineered
receptor tyrosine kinases by light,” EMBO Journal, vol. 33, no. 15. Wiley-Blackwell,
pp. 1713–1726, 2014.
ista: Grusch M, Schelch K, Riedler R, Gschaider-Reichhart E, Differ C, Berger W,
Inglés Prieto Á, Janovjak HL. 2014. Spatio-temporally precise activation of engineered
receptor tyrosine kinases by light. EMBO Journal. 33(15), 1713–1726.
mla: Grusch, Michael, et al. “Spatio-Temporally Precise Activation of Engineered
Receptor Tyrosine Kinases by Light.” EMBO Journal, vol. 33, no. 15, Wiley-Blackwell,
2014, pp. 1713–26, doi:10.15252/embj.201387695.
short: M. Grusch, K. Schelch, R. Riedler, E. Gschaider-Reichhart, C. Differ, W.
Berger, Á. Inglés Prieto, H.L. Janovjak, EMBO Journal 33 (2014) 1713–1726.
corr_author: '1'
date_created: 2018-12-11T11:55:37Z
date_published: 2014-07-01T00:00:00Z
date_updated: 2026-04-08T14:11:53Z
day: '01'
department:
- _id: HaJa
doi: 10.15252/embj.201387695
external_id:
isi:
- '000339917000011'
intvolume: ' 33'
isi: 1
issue: '15'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4194103/
month: '07'
oa: 1
oa_version: Submitted Version
page: 1713 - 1726
publication: EMBO Journal
publication_status: published
publisher: Wiley-Blackwell
publist_id: '4953'
quality_controlled: '1'
related_material:
record:
- id: '418'
relation: dissertation_contains
status: public
scopus_import: '1'
status: public
title: Spatio-temporally precise activation of engineered receptor tyrosine kinases
by light
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 33
year: '2014'
...
---
_id: '2082'
abstract:
- lang: eng
text: 'NMAC is a mode of operation which turns a fixed input-length keyed hash function
f into a variable input-length function. A practical single-key variant of NMAC
called HMAC is a very popular and widely deployed message authentication code
(MAC). Security proofs and attacks for NMAC can typically be lifted to HMAC. NMAC
was introduced by Bellare, Canetti and Krawczyk [Crypto''96], who proved it to
be a secure pseudorandom function (PRF), and thus also a MAC, assuming that (1)
f is a PRF and (2) the function we get when cascading f is weakly collision-resistant.
Unfortunately, HMAC is typically instantiated with cryptographic hash functions
like MD5 or SHA-1 for which (2) has been found to be wrong. To restore the provable
guarantees for NMAC, Bellare [Crypto''06] showed its security based solely on
the assumption that f is a PRF, albeit via a non-uniform reduction. - Our first
contribution is a simpler and uniform proof for this fact: If f is an ε-secure
PRF (against q queries) and a δ-non-adaptively secure PRF (against q queries),
then NMAC f is an (ε+ℓqδ)-secure PRF against q queries of length at most ℓ blocks
each. - We then show that this ε+ℓqδ bound is basically tight. For the most interesting
case where ℓqδ ≥ ε we prove this by constructing an f for which an attack with
advantage ℓqδ exists. This also violates the bound O(ℓε) on the PRF-security of
NMAC recently claimed by Koblitz and Menezes. - Finally, we analyze the PRF-security
of a modification of NMAC called NI [An and Bellare, Crypto''99] that differs
mainly by using a compression function with an additional keying input. This avoids
the constant rekeying on multi-block messages in NMAC and allows for a security
proof starting by the standard switch from a PRF to a random function, followed
by an information-theoretic analysis. We carry out such an analysis, obtaining
a tight ℓq2/2 c bound for this step, improving over the trivial bound of ℓ2q2/2c.
The proof borrows combinatorial techniques originally developed for proving the
security of CBC-MAC [Bellare et al., Crypto''05].'
alternative_title:
- LNCS
author:
- first_name: Peter
full_name: Gazi, Peter
id: 3E0BFE38-F248-11E8-B48F-1D18A9856A87
last_name: Gazi
- first_name: Krzysztof Z
full_name: Pietrzak, Krzysztof Z
id: 3E04A7AA-F248-11E8-B48F-1D18A9856A87
last_name: Pietrzak
orcid: 0000-0002-9139-1654
- first_name: Michal
full_name: Rybar, Michal
id: 2B3E3DE8-F248-11E8-B48F-1D18A9856A87
last_name: Rybar
citation:
ama: 'Gazi P, Pietrzak KZ, Rybar M. The exact PRF-security of NMAC and HMAC. In:
Garay J, Gennaro R, eds. Vol 8616. Springer; 2014:113-130. doi:10.1007/978-3-662-44371-2_7'
apa: 'Gazi, P., Pietrzak, K. Z., & Rybar, M. (2014). The exact PRF-security
of NMAC and HMAC. In J. Garay & R. Gennaro (Eds.) (Vol. 8616, pp. 113–130).
Presented at the CRYPTO: International Cryptology Conference, Santa Barbara, USA:
Springer. https://doi.org/10.1007/978-3-662-44371-2_7'
chicago: Gazi, Peter, Krzysztof Z Pietrzak, and Michal Rybar. “The Exact PRF-Security
of NMAC and HMAC.” edited by Juan Garay and Rosario Gennaro, 8616:113–30. Springer,
2014. https://doi.org/10.1007/978-3-662-44371-2_7.
ieee: 'P. Gazi, K. Z. Pietrzak, and M. Rybar, “The exact PRF-security of NMAC and
HMAC,” presented at the CRYPTO: International Cryptology Conference, Santa Barbara,
USA, 2014, vol. 8616, no. 1, pp. 113–130.'
ista: 'Gazi P, Pietrzak KZ, Rybar M. 2014. The exact PRF-security of NMAC and HMAC.
CRYPTO: International Cryptology Conference, LNCS, vol. 8616, 113–130.'
mla: Gazi, Peter, et al. The Exact PRF-Security of NMAC and HMAC. Edited
by Juan Garay and Rosario Gennaro, vol. 8616, no. 1, Springer, 2014, pp. 113–30,
doi:10.1007/978-3-662-44371-2_7.
short: P. Gazi, K.Z. Pietrzak, M. Rybar, in:, J. Garay, R. Gennaro (Eds.), Springer,
2014, pp. 113–130.
conference:
end_date: 2014-08-21
location: Santa Barbara, USA
name: 'CRYPTO: International Cryptology Conference'
start_date: 2014-08-17
corr_author: '1'
date_created: 2018-12-11T11:55:36Z
date_published: 2014-01-01T00:00:00Z
date_updated: 2026-04-08T14:18:39Z
day: '01'
ddc:
- '000'
- '004'
department:
- _id: KrPi
doi: 10.1007/978-3-662-44371-2_7
ec_funded: 1
editor:
- first_name: Juan
full_name: Garay, Juan
last_name: Garay
- first_name: Rosario
full_name: Gennaro, Rosario
last_name: Gennaro
file:
- access_level: open_access
checksum: dab6ab36a5f6af94f2b597e6404ed11d
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:13:17Z
date_updated: 2020-07-14T12:45:28Z
file_id: '4999'
file_name: IST-2016-682-v1+1_578.pdf
file_size: 492310
relation: main_file
file_date_updated: 2020-07-14T12:45:28Z
has_accepted_license: '1'
intvolume: ' 8616'
issue: '1'
language:
- iso: eng
month: '01'
oa: 1
oa_version: Submitted Version
page: 113 - 130
project:
- _id: 258C570E-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '259668'
name: Provable Security for Physical Cryptography
publication_status: published
publisher: Springer
publist_id: '4955'
pubrep_id: '682'
quality_controlled: '1'
related_material:
record:
- id: '838'
relation: dissertation_contains
status: public
scopus_import: '1'
status: public
title: The exact PRF-security of NMAC and HMAC
type: conference
user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87
volume: 8616
year: '2014'
...
---
_id: '2167'
abstract:
- lang: eng
text: Model-based testing is a promising technology for black-box software and hardware
testing, in which test cases are generated automatically from high-level specifications.
Nowadays, systems typically consist of multiple interacting components and, due
to their complexity, testing presents a considerable portion of the effort and
cost in the design process. Exploiting the compositional structure of system specifications
can considerably reduce the effort in model-based testing. Moreover, inferring
properties about the system from testing its individual components allows the
designer to reduce the amount of integration testing. In this paper, we study
compositional properties of the ioco-testing theory. We propose a new approach
to composition and hiding operations, inspired by contract-based design and interface
theories. These operations preserve behaviors that are compatible under composition
and hiding, and prune away incompatible ones. The resulting specification characterizes
the input sequences for which the unit testing of components is sufficient to
infer the correctness of component integration without the need for further tests.
We provide a methodology that uses these results to minimize integration testing
effort, but also to detect potential weaknesses in specifications. While we focus
on asynchronous models and the ioco conformance relation, the resulting methodology
can be applied to a broader class of systems.
article_number: '6823899'
article_processing_charge: No
arxiv: 1
author:
- first_name: Przemyslaw
full_name: Daca, Przemyslaw
id: 49351290-F248-11E8-B48F-1D18A9856A87
last_name: Daca
- first_name: Thomas A
full_name: Henzinger, Thomas A
id: 40876CD8-F248-11E8-B48F-1D18A9856A87
last_name: Henzinger
orcid: 0000−0002−2985−7724
- first_name: Willibald
full_name: Krenn, Willibald
last_name: Krenn
- first_name: Dejan
full_name: Nickovic, Dejan
last_name: Nickovic
citation:
ama: 'Daca P, Henzinger TA, Krenn W, Nickovic D. Compositional specifications for
IOCO testing. In: IEEE 7th International Conference on Software Testing, Verification
and Validation. IEEE; 2014. doi:10.1109/ICST.2014.50'
apa: 'Daca, P., Henzinger, T. A., Krenn, W., & Nickovic, D. (2014). Compositional
specifications for IOCO testing. In IEEE 7th International Conference on Software
Testing, Verification and Validation. Cleveland, USA: IEEE. https://doi.org/10.1109/ICST.2014.50'
chicago: Daca, Przemyslaw, Thomas A Henzinger, Willibald Krenn, and Dejan Nickovic.
“Compositional Specifications for IOCO Testing.” In IEEE 7th International
Conference on Software Testing, Verification and Validation. IEEE, 2014. https://doi.org/10.1109/ICST.2014.50.
ieee: P. Daca, T. A. Henzinger, W. Krenn, and D. Nickovic, “Compositional specifications
for IOCO testing,” in IEEE 7th International Conference on Software Testing,
Verification and Validation, Cleveland, USA, 2014.
ista: 'Daca P, Henzinger TA, Krenn W, Nickovic D. 2014. Compositional specifications
for IOCO testing. IEEE 7th International Conference on Software Testing, Verification
and Validation. ICST: International Conference on Software Testing, Verification
and Validation, 6823899.'
mla: Daca, Przemyslaw, et al. “Compositional Specifications for IOCO Testing.” IEEE
7th International Conference on Software Testing, Verification and Validation,
6823899, IEEE, 2014, doi:10.1109/ICST.2014.50.
short: P. Daca, T.A. Henzinger, W. Krenn, D. Nickovic, in:, IEEE 7th International
Conference on Software Testing, Verification and Validation, IEEE, 2014.
conference:
end_date: 2014-04-04
location: Cleveland, USA
name: 'ICST: International Conference on Software Testing, Verification and Validation'
start_date: 2014-03-31
date_created: 2018-12-11T11:56:06Z
date_published: 2014-03-01T00:00:00Z
date_updated: 2026-04-08T14:21:08Z
day: '01'
department:
- _id: ToHe
doi: 10.1109/ICST.2014.50
ec_funded: 1
external_id:
arxiv:
- '1904.07083'
isi:
- '000355985000040'
isi: 1
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1904.07083
month: '03'
oa: 1
oa_version: Preprint
project:
- _id: 25EE3708-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '267989'
name: Quantitative Reactive Modeling
- _id: 25F5A88A-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: S11402-N23
name: Moderne Concurrency Paradigms
publication: IEEE 7th International Conference on Software Testing, Verification and
Validation
publication_identifier:
isbn:
- 978-1-4799-2255-0
issn:
- 2159-4848
publication_status: published
publisher: IEEE
publist_id: '4817'
quality_controlled: '1'
related_material:
record:
- id: '5411'
relation: earlier_version
status: public
- id: '1155'
relation: dissertation_contains
status: public
scopus_import: '1'
status: public
title: Compositional specifications for IOCO testing
type: conference
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
year: '2014'
...
---
_id: '2063'
abstract:
- lang: eng
text: We consider Markov decision processes (MDPs) which are a standard model for
probabilistic systems.We focus on qualitative properties forMDPs that can express
that desired behaviors of the system arise almost-surely (with probability 1)
or with positive probability. We introduce a new simulation relation to capture
the refinement relation ofMDPs with respect to qualitative properties, and present
discrete graph theoretic algorithms with quadratic complexity to compute the simulation
relation.We present an automated technique for assume-guarantee style reasoning
for compositional analysis ofMDPs with qualitative properties by giving a counterexample
guided abstraction-refinement approach to compute our new simulation relation.
We have implemented our algorithms and show that the compositional analysis leads
to significant improvements.
alternative_title:
- LNCS
author:
- first_name: Krishnendu
full_name: Chatterjee, Krishnendu
id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
last_name: Chatterjee
orcid: 0000-0002-4561-241X
- first_name: Martin
full_name: Chmelik, Martin
id: 3624234E-F248-11E8-B48F-1D18A9856A87
last_name: Chmelik
- first_name: Przemyslaw
full_name: Daca, Przemyslaw
id: 49351290-F248-11E8-B48F-1D18A9856A87
last_name: Daca
citation:
ama: 'Chatterjee K, Chmelik M, Daca P. CEGAR for qualitative analysis of probabilistic
systems. In: Vol 8559. Springer; 2014:473-490. doi:10.1007/978-3-319-08867-9_31'
apa: 'Chatterjee, K., Chmelik, M., & Daca, P. (2014). CEGAR for qualitative
analysis of probabilistic systems (Vol. 8559, pp. 473–490). Presented at the CAV:
Computer Aided Verification, Vienna, Austria: Springer. https://doi.org/10.1007/978-3-319-08867-9_31'
chicago: Chatterjee, Krishnendu, Martin Chmelik, and Przemyslaw Daca. “CEGAR for
Qualitative Analysis of Probabilistic Systems,” 8559:473–90. Springer, 2014. https://doi.org/10.1007/978-3-319-08867-9_31.
ieee: 'K. Chatterjee, M. Chmelik, and P. Daca, “CEGAR for qualitative analysis of
probabilistic systems,” presented at the CAV: Computer Aided Verification, Vienna,
Austria, 2014, vol. 8559, pp. 473–490.'
ista: 'Chatterjee K, Chmelik M, Daca P. 2014. CEGAR for qualitative analysis of
probabilistic systems. CAV: Computer Aided Verification, LNCS, vol. 8559, 473–490.'
mla: Chatterjee, Krishnendu, et al. CEGAR for Qualitative Analysis of Probabilistic
Systems. Vol. 8559, Springer, 2014, pp. 473–90, doi:10.1007/978-3-319-08867-9_31.
short: K. Chatterjee, M. Chmelik, P. Daca, in:, Springer, 2014, pp. 473–490.
conference:
end_date: 2014-07-22
location: Vienna, Austria
name: 'CAV: Computer Aided Verification'
start_date: 2014-07-18
corr_author: '1'
date_created: 2018-12-11T11:55:30Z
date_published: 2014-07-01T00:00:00Z
date_updated: 2026-04-08T14:21:07Z
day: '01'
department:
- _id: KrCh
- _id: ToHe
doi: 10.1007/978-3-319-08867-9_31
ec_funded: 1
intvolume: ' 8559'
language:
- iso: eng
month: '07'
oa_version: None
page: 473 - 490
project:
- _id: 2584A770-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: P 23499-N23
name: Modern Graph Algorithmic Techniques in Formal Verification
- _id: 25863FF4-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: S11407
name: Game Theory
- _id: 25F5A88A-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: S11402-N23
name: Moderne Concurrency Paradigms
- _id: 2581B60A-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '279307'
name: 'Quantitative Graph Games: Theory and Applications'
- _id: 2587B514-B435-11E9-9278-68D0E5697425
name: Microsoft Research Faculty Fellowship
- _id: 25EE3708-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '267989'
name: Quantitative Reactive Modeling
publication_status: published
publisher: Springer
publist_id: '4978'
quality_controlled: '1'
related_material:
record:
- id: '5412'
relation: earlier_version
status: public
- id: '5413'
relation: earlier_version
status: public
- id: '5414'
relation: earlier_version
status: public
- id: '1155'
relation: dissertation_contains
status: public
scopus_import: '1'
status: public
title: CEGAR for qualitative analysis of probabilistic systems
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 8559
year: '2014'
...
---
_id: '2001'
abstract:
- lang: eng
text: Antibiotics affect bacterial cell physiology at many levels. Rather than just
compensating for the direct cellular defects caused by the drug, bacteria respond
to antibiotics by changing their morphology, macromolecular composition, metabolism,
gene expression and possibly even their mutation rate. Inevitably, these processes
affect each other, resulting in a complex response with changes in the expression
of numerous genes. Genome‐wide approaches can thus help in gaining a comprehensive
understanding of bacterial responses to antibiotics. In addition, a combination
of experimental and theoretical approaches is needed for identifying general principles
that underlie these responses. Here, we review recent progress in our understanding
of bacterial responses to antibiotics and their combinations, focusing on effects
at the levels of growth rate and gene expression. We concentrate on studies performed
in controlled laboratory conditions, which combine promising experimental techniques
with quantitative data analysis and mathematical modeling. While these basic research
approaches are not immediately applicable in the clinic, uncovering the principles
and mechanisms underlying bacterial responses to antibiotics may, in the long
term, contribute to the development of new treatment strategies to cope with and
prevent the rise of resistant pathogenic bacteria.
article_processing_charge: No
author:
- first_name: Karin
full_name: Mitosch, Karin
id: 39B66846-F248-11E8-B48F-1D18A9856A87
last_name: Mitosch
- first_name: Tobias
full_name: Bollenbach, Tobias
id: 3E6DB97A-F248-11E8-B48F-1D18A9856A87
last_name: Bollenbach
orcid: 0000-0003-4398-476X
citation:
ama: Mitosch K, Bollenbach MT. Bacterial responses to antibiotics and their combinations.
Environmental Microbiology Reports. 2014;6(6):545-557. doi:10.1111/1758-2229.12190
apa: Mitosch, K., & Bollenbach, M. T. (2014). Bacterial responses to antibiotics
and their combinations. Environmental Microbiology Reports. Wiley. https://doi.org/10.1111/1758-2229.12190
chicago: Mitosch, Karin, and Mark Tobias Bollenbach. “Bacterial Responses to Antibiotics
and Their Combinations.” Environmental Microbiology Reports. Wiley, 2014.
https://doi.org/10.1111/1758-2229.12190.
ieee: K. Mitosch and M. T. Bollenbach, “Bacterial responses to antibiotics and their
combinations,” Environmental Microbiology Reports, vol. 6, no. 6. Wiley,
pp. 545–557, 2014.
ista: Mitosch K, Bollenbach MT. 2014. Bacterial responses to antibiotics and their
combinations. Environmental Microbiology Reports. 6(6), 545–557.
mla: Mitosch, Karin, and Mark Tobias Bollenbach. “Bacterial Responses to Antibiotics
and Their Combinations.” Environmental Microbiology Reports, vol. 6, no.
6, Wiley, 2014, pp. 545–57, doi:10.1111/1758-2229.12190.
short: K. Mitosch, M.T. Bollenbach, Environmental Microbiology Reports 6 (2014)
545–557.
corr_author: '1'
date_created: 2018-12-11T11:55:08Z
date_published: 2014-06-22T00:00:00Z
date_updated: 2026-04-08T14:21:56Z
day: '22'
department:
- _id: ToBo
doi: 10.1111/1758-2229.12190
ec_funded: 1
external_id:
isi:
- '000345702700002'
intvolume: ' 6'
isi: 1
issue: '6'
language:
- iso: eng
month: '06'
oa_version: None
page: 545 - 557
project:
- _id: 25EB3A80-B435-11E9-9278-68D0E5697425
grant_number: RGP0042/2013
name: Revealing the fundamental limits of cell growth
- _id: 25E83C2C-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '303507'
name: Optimality principles in responses to antibiotics
publication: Environmental Microbiology Reports
publication_status: published
publisher: Wiley
publist_id: '5076'
quality_controlled: '1'
related_material:
record:
- id: '818'
relation: dissertation_contains
status: public
scopus_import: '1'
status: public
title: Bacterial responses to antibiotics and their combinations
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 6
year: '2014'
...
---
_id: '1912'
abstract:
- lang: eng
text: Kupffer's vesicle (KV) is the zebrafish organ of laterality, patterning the
embryo along its left-right (LR) axis. Regional differences in cell shape within
the lumen-lining KV epithelium are essential for its LR patterning function. However,
the processes by which KV cells acquire their characteristic shapes are largely
unknown. Here, we show that the notochord induces regional differences in cell
shape within KV by triggering extracellular matrix (ECM) accumulation adjacent
to anterior-dorsal (AD) regions of KV. This localized ECM deposition restricts
apical expansion of lumen-lining epithelial cells in AD regions of KV during lumen
growth. Our study provides mechanistic insight into the processes by which KV
translates global embryonic patterning into regional cell shape differences required
for its LR symmetry-breaking function.
acknowledgement: We are grateful to members of the C.-P.H. lab, M. Concha, D. Siekhaus,
and J. Vermot for comments on the manuscript and to M. Furutani-Seiki for sharing
reagents. This work was supported by the Institute of Science and Technology Austria
and an Alexander von Humboldt Foundation fellowship to J.C.
article_processing_charge: No
author:
- first_name: Julien
full_name: Compagnon, Julien
id: 2E3E0988-F248-11E8-B48F-1D18A9856A87
last_name: Compagnon
- first_name: Vanessa
full_name: Barone, Vanessa
id: 419EECCC-F248-11E8-B48F-1D18A9856A87
last_name: Barone
orcid: 0000-0003-2676-3367
- first_name: Srivarsha
full_name: Rajshekar, Srivarsha
last_name: Rajshekar
- first_name: Rita
full_name: Kottmeier, Rita
last_name: Kottmeier
- first_name: Kornelija
full_name: Pranjic-Ferscha, Kornelija
id: 4362B3C2-F248-11E8-B48F-1D18A9856A87
last_name: Pranjic-Ferscha
- first_name: Martin
full_name: Behrndt, Martin
id: 3ECECA3A-F248-11E8-B48F-1D18A9856A87
last_name: Behrndt
- first_name: Carl-Philipp J
full_name: Heisenberg, Carl-Philipp J
id: 39427864-F248-11E8-B48F-1D18A9856A87
last_name: Heisenberg
orcid: 0000-0002-0912-4566
citation:
ama: Compagnon J, Barone V, Rajshekar S, et al. The notochord breaks bilateral symmetry
by controlling cell shapes in the Zebrafish laterality organ. Developmental
Cell. 2014;31(6):774-783. doi:10.1016/j.devcel.2014.11.003
apa: Compagnon, J., Barone, V., Rajshekar, S., Kottmeier, R., Pranjic-Ferscha, K.,
Behrndt, M., & Heisenberg, C.-P. J. (2014). The notochord breaks bilateral
symmetry by controlling cell shapes in the Zebrafish laterality organ. Developmental
Cell. Cell Press. https://doi.org/10.1016/j.devcel.2014.11.003
chicago: Compagnon, Julien, Vanessa Barone, Srivarsha Rajshekar, Rita Kottmeier,
Kornelija Pranjic-Ferscha, Martin Behrndt, and Carl-Philipp J Heisenberg. “The
Notochord Breaks Bilateral Symmetry by Controlling Cell Shapes in the Zebrafish
Laterality Organ.” Developmental Cell. Cell Press, 2014. https://doi.org/10.1016/j.devcel.2014.11.003.
ieee: J. Compagnon et al., “The notochord breaks bilateral symmetry by controlling
cell shapes in the Zebrafish laterality organ,” Developmental Cell, vol.
31, no. 6. Cell Press, pp. 774–783, 2014.
ista: Compagnon J, Barone V, Rajshekar S, Kottmeier R, Pranjic-Ferscha K, Behrndt
M, Heisenberg C-PJ. 2014. The notochord breaks bilateral symmetry by controlling
cell shapes in the Zebrafish laterality organ. Developmental Cell. 31(6), 774–783.
mla: Compagnon, Julien, et al. “The Notochord Breaks Bilateral Symmetry by Controlling
Cell Shapes in the Zebrafish Laterality Organ.” Developmental Cell, vol.
31, no. 6, Cell Press, 2014, pp. 774–83, doi:10.1016/j.devcel.2014.11.003.
short: J. Compagnon, V. Barone, S. Rajshekar, R. Kottmeier, K. Pranjic-Ferscha,
M. Behrndt, C.-P.J. Heisenberg, Developmental Cell 31 (2014) 774–783.
corr_author: '1'
date_created: 2018-12-11T11:54:41Z
date_published: 2014-12-22T00:00:00Z
date_updated: 2026-04-08T14:22:39Z
day: '22'
department:
- _id: CaHe
doi: 10.1016/j.devcel.2014.11.003
external_id:
isi:
- '000346742900012'
pmid:
- '25535919'
intvolume: ' 31'
isi: 1
issue: '6'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.ncbi.nlm.nih.gov/pubmed/25535919
month: '12'
oa: 1
oa_version: Published Version
page: 774 - 783
pmid: 1
publication: Developmental Cell
publication_status: published
publisher: Cell Press
publist_id: '5182'
quality_controlled: '1'
related_material:
record:
- id: '961'
relation: dissertation_contains
status: public
scopus_import: '1'
status: public
title: The notochord breaks bilateral symmetry by controlling cell shapes in the Zebrafish
laterality organ
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 31
year: '2014'
...
---
_id: '2159'
abstract:
- lang: eng
text: 'Motivated by topological Tverberg-type problems, we consider multiple (double,
triple, and higher multiplicity) selfintersection points of maps from finite simplicial
complexes (compact polyhedra) into ℝd and study conditions under which such multiple
points can be eliminated. The most classical case is that of embeddings (i.e.,
maps without double points) of a κ-dimensional complex K into ℝ2κ. For this problem,
the work of van Kampen, Shapiro, and Wu provides an efficiently testable necessary
condition for embeddability (namely, vanishing of the van Kampen ob-struction).
For κ ≥ 3, the condition is also sufficient, and yields a polynomial-time algorithm
for deciding embeddability: One starts with an arbitrary map f : K→ℝ2κ, which
generically has finitely many double points; if k ≥ 3 and if the obstruction vanishes
then one can successively remove these double points by local modifications of
the map f. One of the main tools is the famous Whitney trick that permits eliminating
pairs of double points of opposite intersection sign. We are interested in generalizing
this approach to intersection points of higher multiplicity. We call a point y
2 ℝd an r-fold Tverberg point of a map f : Kκ →ℝd if y lies in the intersection
f(σ1)∩. ∩f(σr) of the images of r pairwise disjoint simplices of K. The analogue
of (non-)embeddability that we study is the problem Tverbergκ r→d: Given a κ-dimensional
complex K, does it satisfy a Tverberg-type theorem with parameters r and d, i.e.,
does every map f : K κ → ℝd have an r-fold Tverberg point? Here, we show that
for fixed r, κ and d of the form d = rm and k = (r-1)m, m ≥ 3, there is a polynomial-time
algorithm for deciding this (based on the vanishing of a cohomological obstruction,
as in the case of embeddings). Our main tool is an r-fold analogue of the Whitney
trick: Given r pairwise disjoint simplices of K such that the intersection of
their images contains two r-fold Tverberg points y+ and y- of opposite intersection
sign, we can eliminate y+ and y- by a local isotopy of f. In a subsequent paper,
we plan to develop this further and present a generalization of the classical
Haeiger-Weber Theorem (which yields a necessary and sufficient condition for embeddability
of κ-complexes into ℝd for a wider range of dimensions) to intersection points
of higher multiplicity.'
acknowledgement: Swiss National Science Foundation (Project SNSF-PP00P2-138948)
author:
- first_name: Isaac
full_name: Mabillard, Isaac
id: 32BF9DAA-F248-11E8-B48F-1D18A9856A87
last_name: Mabillard
- first_name: Uli
full_name: Wagner, Uli
id: 36690CA2-F248-11E8-B48F-1D18A9856A87
last_name: Wagner
orcid: 0000-0002-1494-0568
citation:
ama: 'Mabillard I, Wagner U. Eliminating Tverberg points, I. An analogue of the
Whitney trick. In: Proceedings of the Annual Symposium on Computational Geometry.
ACM; 2014:171-180. doi:10.1145/2582112.2582134'
apa: 'Mabillard, I., & Wagner, U. (2014). Eliminating Tverberg points, I. An
analogue of the Whitney trick. In Proceedings of the Annual Symposium on Computational
Geometry (pp. 171–180). Kyoto, Japan: ACM. https://doi.org/10.1145/2582112.2582134'
chicago: Mabillard, Isaac, and Uli Wagner. “Eliminating Tverberg Points, I. An Analogue
of the Whitney Trick.” In Proceedings of the Annual Symposium on Computational
Geometry, 171–80. ACM, 2014. https://doi.org/10.1145/2582112.2582134.
ieee: I. Mabillard and U. Wagner, “Eliminating Tverberg points, I. An analogue of
the Whitney trick,” in Proceedings of the Annual Symposium on Computational
Geometry, Kyoto, Japan, 2014, pp. 171–180.
ista: 'Mabillard I, Wagner U. 2014. Eliminating Tverberg points, I. An analogue
of the Whitney trick. Proceedings of the Annual Symposium on Computational Geometry.
SoCG: Symposium on Computational Geometry, 171–180.'
mla: Mabillard, Isaac, and Uli Wagner. “Eliminating Tverberg Points, I. An Analogue
of the Whitney Trick.” Proceedings of the Annual Symposium on Computational
Geometry, ACM, 2014, pp. 171–80, doi:10.1145/2582112.2582134.
short: I. Mabillard, U. Wagner, in:, Proceedings of the Annual Symposium on Computational
Geometry, ACM, 2014, pp. 171–180.
conference:
end_date: 2014-06-11
location: Kyoto, Japan
name: 'SoCG: Symposium on Computational Geometry'
start_date: 2014-06-08
corr_author: '1'
date_created: 2018-12-11T11:56:03Z
date_published: 2014-06-08T00:00:00Z
date_updated: 2026-04-08T14:24:22Z
day: '08'
ddc:
- '510'
department:
- _id: UlWa
doi: 10.1145/2582112.2582134
file:
- access_level: open_access
checksum: 2aae223fee8ffeaf57bbabd8d92b6a2c
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:09:12Z
date_updated: 2020-07-14T12:45:30Z
file_id: '4735'
file_name: IST-2016-534-v1+1_Eliminating_Tverberg_points_I._An_analogue_of_the_Whitney_trick.pdf
file_size: 914396
relation: main_file
file_date_updated: 2020-07-14T12:45:30Z
has_accepted_license: '1'
language:
- iso: eng
month: '06'
oa: 1
oa_version: Submitted Version
page: 171 - 180
publication: Proceedings of the Annual Symposium on Computational Geometry
publication_status: published
publisher: ACM
publist_id: '4847'
pubrep_id: '534'
quality_controlled: '1'
related_material:
record:
- id: '1123'
relation: dissertation_contains
status: public
scopus_import: 1
status: public
title: Eliminating Tverberg points, I. An analogue of the Whitney trick
type: conference
user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87
year: '2014'
...
---
_id: '115'
abstract:
- lang: eng
text: We present the design and performance characterization of a new experimental
technique for measuring individual particle charges in large ensembles of macroscopic
grains. The measurement principle is qualitatively similar to that used in determining
the elementary charge by Millikan in that it follows individual particle trajectories.
However, by taking advantage of new technology we are able to work with macroscopic
grains and achieve several orders of magnitude better resolution in charge to
mass ratios. By observing freely falling grains accelerated in a horizontal electric
field with a co-falling, high-speed video camera, we dramatically increase particle
tracking time and measurement precision. Keeping the granular medium under vacuum,
we eliminate air drag, leaving the electrostatic force as the primary source of
particle accelerations in the co-moving frame. Because the technique is based
on direct imaging, we can distinguish between different particle types during
the experiment, opening up the possibility of studying charge transfer processes
between different particle species. For the ∼300 μm diameter grains reported here,
we achieve an average acceleration resolution of ∼0.008 m/s2, a force resolution
of ∼500 pN, and a median charge resolution ∼6× 104 elementary charges per grain
(corresponding to surface charge densities ∼1 elementary charges per μm2). The
primary source of error is indeterminacy in the grain mass, but with higher resolution
cameras and better optics this can be further improved. The high degree of resolution
and the ability to visually identify particles of different species or sizes with
direct imaging make this a powerful new tool to characterize charging processes
in granular media.
acknowledgement: This work was supported financially by the National Science Foundation
(NSF) through its Materials Research Science and Engineering Center (MRSEC) program
(DMR-0820054) and by the US Army Research Office through Grant No. W911NF-12-1-0182.
S.R.W. acknowledges support from a University of Chicago Millikan Fellowship.
article_number: '025104'
author:
- first_name: Scott R
full_name: Waitukaitis, Scott R
id: 3A1FFC16-F248-11E8-B48F-1D18A9856A87
last_name: Waitukaitis
orcid: 0000-0002-2299-3176
- first_name: Heinrich
full_name: Jaeger, Heinrich
last_name: Jaeger
citation:
ama: Waitukaitis SR, Jaeger H. In situ granular charge measurement by free-fall
videography. Review of Scientific Instruments. 2013;84(2). doi:10.1063/1.4789496
apa: Waitukaitis, S. R., & Jaeger, H. (2013). In situ granular charge measurement
by free-fall videography. Review of Scientific Instruments. AIP. https://doi.org/10.1063/1.4789496
chicago: Waitukaitis, Scott R, and Heinrich Jaeger. “In Situ Granular Charge Measurement
by Free-Fall Videography.” Review of Scientific Instruments. AIP, 2013.
https://doi.org/10.1063/1.4789496.
ieee: S. R. Waitukaitis and H. Jaeger, “In situ granular charge measurement by free-fall
videography,” Review of Scientific Instruments, vol. 84, no. 2. AIP, 2013.
ista: Waitukaitis SR, Jaeger H. 2013. In situ granular charge measurement by free-fall
videography. Review of Scientific Instruments. 84(2), 025104.
mla: Waitukaitis, Scott R., and Heinrich Jaeger. “In Situ Granular Charge Measurement
by Free-Fall Videography.” Review of Scientific Instruments, vol. 84, no.
2, 025104, AIP, 2013, doi:10.1063/1.4789496.
short: S.R. Waitukaitis, H. Jaeger, Review of Scientific Instruments 84 (2013).
date_created: 2018-12-11T11:44:42Z
date_published: 2013-02-07T00:00:00Z
date_updated: 2021-01-12T06:48:39Z
day: '07'
doi: 10.1063/1.4789496
extern: '1'
intvolume: ' 84'
issue: '2'
language:
- iso: eng
month: '02'
oa_version: None
publication: Review of Scientific Instruments
publication_status: published
publisher: AIP
publist_id: '7939'
quality_controlled: '1'
status: public
title: In situ granular charge measurement by free-fall videography
type: journal_article
user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87
volume: 84
year: '2013'
...
---
_id: '11520'
abstract:
- lang: eng
text: We present the spatially resolved Hα dynamics of 16 star-forming galaxies
at z ∼ 0.81 using the new KMOS multi-object integral field spectrograph on the
ESO Very Large Telescope. These galaxies, selected using 1.18 μm narrowband imaging
from the 10 deg2 CFHT-HiZELS survey of the SA 22 hr field, are found in a ∼4 Mpc
overdensity of Hα emitters and likely reside in a group/intermediate environment,
but not a cluster. We confirm and identify a rich group of star-forming galaxies
at z = 0.813 ± 0.003, with 13 galaxies within 1000 km s−1 of each other, and seven
within a diameter of 3 Mpc. All of our galaxies are “typical” star-forming galaxies
at their redshift, 0.8 ± 0.4 SFR$^*_{z = 0.8}$, spanning a range of specific star
formation rates (sSFRs) of 0.2–1.1 Gyr−1 and have a median metallicity very close
to solar of 12 + log(O/H) = 8.62 ± 0.06. We measure the spatially resolved Hα
dynamics of the galaxies in our sample and show that 13 out of 16 galaxies can
be described by rotating disks and use the data to derive inclination corrected
rotation speeds of 50–275 km s−1. The fraction of disks within our sample is 75%
± 8%, consistent with previous results based on Hubble Space Telescope morphologies
of Hα-selected galaxies at z ∼ 1 and confirming that disks dominate the SFR density
at z ∼ 1. Our Hα galaxies are well fitted by the z ∼ 1–2 Tully–Fisher (TF) relation,
confirming the evolution seen in the zero point. Apart from having, on average,
higher stellar masses and lower sSFRs, our group galaxies at z = 0.81 present
the same mass–metallicity and TF relation as z ∼ 1 field galaxies and are all
disk galaxies.
acknowledgement: 'We thank the referee for many helpful comments and suggestions which
greatly improved the clarity and quality of this work. D.S. acknowledges financial
support from the Netherlands Organisation for Scientific research (NWO) through
a Veni fellowship and also funding from the European Community Seventh Framework
Programme (FP7/2007-2013) under grant agreement number RG226604 (OPTICON) which
allowed access to CFHT time (proposals: 11BO29 & 12AO19). A.M.S. gratefully acknowledges
an STFC Advanced Fellowship through grant number ST/H005234/1. I.R.S., J.P.S., and
R.G.B. acknowledge support from the UK Science and Technology Facilities Council
(STFC) under ST/I001573/1. I.R.S. acknowledges STFC (ST/J001422/1), the ERC Advanced
Investigator program DUSTYGAL and a Royal Society/Wolfson Merit Award. P.N.B. acknowledges
support from STFC. R.M.S. acknowledges support from the grant ST/1001573/1. The
data presented here are based on observations with the KMOS spectrograph on the
ESO/VLT under program 60.A-9460 and can be accessed through the ESO data archive.
The authors also wish to acknowledge the help from Michael Hilker in preparing the
KMOS observations.'
article_number: '139'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: D.
full_name: Sobral, D.
last_name: Sobral
- first_name: A. M.
full_name: Swinbank, A. M.
last_name: Swinbank
- first_name: J. P.
full_name: Stott, J. P.
last_name: Stott
- first_name: Jorryt J
full_name: Matthee, Jorryt J
id: 7439a258-f3c0-11ec-9501-9df22fe06720
last_name: Matthee
orcid: 0000-0003-2871-127X
- first_name: R. G.
full_name: Bower, R. G.
last_name: Bower
- first_name: Ian
full_name: Smail, Ian
last_name: Smail
- first_name: P.
full_name: Best, P.
last_name: Best
- first_name: J. E.
full_name: Geach, J. E.
last_name: Geach
- first_name: R. M.
full_name: Sharples, R. M.
last_name: Sharples
citation:
ama: Sobral D, Swinbank AM, Stott JP, et al. The dynamics of z=0.8 H-alpha-selected
star-forming galaxies from KMOS/CF-HiZELS. The Astrophysical Journal. 2013;779(2).
doi:10.1088/0004-637x/779/2/139
apa: Sobral, D., Swinbank, A. M., Stott, J. P., Matthee, J. J., Bower, R. G., Smail,
I., … Sharples, R. M. (2013). The dynamics of z=0.8 H-alpha-selected star-forming
galaxies from KMOS/CF-HiZELS. The Astrophysical Journal. IOP Publishing.
https://doi.org/10.1088/0004-637x/779/2/139
chicago: Sobral, D., A. M. Swinbank, J. P. Stott, Jorryt J Matthee, R. G. Bower,
Ian Smail, P. Best, J. E. Geach, and R. M. Sharples. “The Dynamics of Z=0.8 H-Alpha-Selected
Star-Forming Galaxies from KMOS/CF-HiZELS.” The Astrophysical Journal.
IOP Publishing, 2013. https://doi.org/10.1088/0004-637x/779/2/139.
ieee: D. Sobral et al., “The dynamics of z=0.8 H-alpha-selected star-forming
galaxies from KMOS/CF-HiZELS,” The Astrophysical Journal, vol. 779, no.
2. IOP Publishing, 2013.
ista: Sobral D, Swinbank AM, Stott JP, Matthee JJ, Bower RG, Smail I, Best P, Geach
JE, Sharples RM. 2013. The dynamics of z=0.8 H-alpha-selected star-forming galaxies
from KMOS/CF-HiZELS. The Astrophysical Journal. 779(2), 139.
mla: Sobral, D., et al. “The Dynamics of Z=0.8 H-Alpha-Selected Star-Forming Galaxies
from KMOS/CF-HiZELS.” The Astrophysical Journal, vol. 779, no. 2, 139,
IOP Publishing, 2013, doi:10.1088/0004-637x/779/2/139.
short: D. Sobral, A.M. Swinbank, J.P. Stott, J.J. Matthee, R.G. Bower, I. Smail,
P. Best, J.E. Geach, R.M. Sharples, The Astrophysical Journal 779 (2013).
date_created: 2022-07-07T09:14:48Z
date_published: 2013-12-03T00:00:00Z
date_updated: 2022-08-18T10:43:07Z
day: '03'
doi: 10.1088/0004-637x/779/2/139
extern: '1'
external_id:
arxiv:
- '1310.3822'
intvolume: ' 779'
issue: '2'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
- 'galaxies: evolution – galaxies'
- high-redshift – galaxies
- starburst
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1310.3822
month: '12'
oa: 1
oa_version: Preprint
publication: The Astrophysical Journal
publication_identifier:
eissn:
- 1538-4357
issn:
- 0004-637X
publication_status: published
publisher: IOP Publishing
quality_controlled: '1'
scopus_import: '1'
status: public
title: The dynamics of z=0.8 H-alpha-selected star-forming galaxies from KMOS/CF-HiZELS
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 779
year: '2013'
...
---
_id: '116'
abstract:
- lang: eng
text: 'We describe a model experiment for dynamic jamming: a two-dimensional collection
of initially unjammed disks that are forced into the jammed state by uniaxial
compression via a rake. This leads to a stable densification front that travels
ahead of the rake, leaving regions behind it jammed. Using disk conservation in
conjunction with an upper limit to the packing fraction at jamming onset, we predict
the front speed as a function of packing fraction and rake speed. However, we
find that the jamming front has a finite width, a feature that cannot be explained
by disk conservation alone. This width appears to diverge on approach to jamming,
which suggests that it may be related to growing lengthscales encountered in other
jamming studies.'
acknowledgement: This work was supported by the National Science Foundation (NSF)
through its Materials Research Science and Engineering program (DMR-0820054). SRW
was supported by the U.S. Department of Energy, Office of Basic Energy Sciences,
Division of Materials Sciences and Engineering under Award DE-FG02-03ER46088. LKR
acknowledges support through the NSF Research Experience for Undergraduates program.
article_number: '44001'
author:
- first_name: Scott R
full_name: Waitukaitis, Scott R
id: 3A1FFC16-F248-11E8-B48F-1D18A9856A87
last_name: Waitukaitis
orcid: 0000-0002-2299-3176
- first_name: Leah
full_name: Roth, Leah
last_name: Roth
- first_name: Vincenzo
full_name: Vitelli, Vincenzo
last_name: Vitelli
- first_name: Heinrich
full_name: Jaeger, Heinrich
last_name: Jaeger
citation:
ama: Waitukaitis SR, Roth L, Vitelli V, Jaeger H. Dynamic jamming fronts. EPL.
2013;102(4). doi:10.1209/0295-5075/102/44001
apa: Waitukaitis, S. R., Roth, L., Vitelli, V., & Jaeger, H. (2013). Dynamic
jamming fronts. EPL. Elsevier. https://doi.org/10.1209/0295-5075/102/44001
chicago: Waitukaitis, Scott R, Leah Roth, Vincenzo Vitelli, and Heinrich Jaeger.
“Dynamic Jamming Fronts.” EPL. Elsevier, 2013. https://doi.org/10.1209/0295-5075/102/44001.
ieee: S. R. Waitukaitis, L. Roth, V. Vitelli, and H. Jaeger, “Dynamic jamming fronts,”
EPL, vol. 102, no. 4. Elsevier, 2013.
ista: Waitukaitis SR, Roth L, Vitelli V, Jaeger H. 2013. Dynamic jamming fronts.
EPL. 102(4), 44001.
mla: Waitukaitis, Scott R., et al. “Dynamic Jamming Fronts.” EPL, vol. 102,
no. 4, 44001, Elsevier, 2013, doi:10.1209/0295-5075/102/44001.
short: S.R. Waitukaitis, L. Roth, V. Vitelli, H. Jaeger, EPL 102 (2013).
date_created: 2018-12-11T11:44:43Z
date_published: 2013-05-24T00:00:00Z
date_updated: 2021-01-12T06:48:44Z
day: '24'
doi: 10.1209/0295-5075/102/44001
extern: '1'
intvolume: ' 102'
issue: '4'
language:
- iso: eng
month: '05'
oa_version: None
publication: EPL
publication_status: published
publisher: Elsevier
publist_id: '7938'
quality_controlled: '1'
status: public
title: Dynamic jamming fronts
type: journal_article
user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87
volume: 102
year: '2013'
...
---
_id: '11671'
abstract:
- lang: eng
text: "Given only the URL of a Web page, can we identify its language? In this article
we examine this question. URL-based language classification is useful when the
content of the Web page is not available or downloading the content is a waste
of bandwidth and time.\r\nWe built URL-based language classifiers for English,
German, French, Spanish, and Italian by applying a variety of algorithms and features.
As algorithms we used machine learning algorithms which are widely applied for
text classification and state-of-art algorithms for language identification of
text. As features we used words, various sized n-grams, and custom-made features
(our novel feature set). We compared our approaches with two baseline methods,
namely classification by country code top-level domains and classification by
IP addresses of the hosting Web servers.\r\n\r\nWe trained and tested our classifiers
in a 10-fold cross-validation setup on a dataset obtained from the Open Directory
Project and from querying a commercial search engine. We obtained the lowest F1-measure
for English (94) and the highest F1-measure for German (98) with the best performing
classifiers.\r\n\r\nWe also evaluated the performance of our methods: (i) on a
set of Web pages written in Adobe Flash and (ii) as part of a language-focused
crawler. In the first case, the content of the Web page is hard to extract and
in the second page downloading pages of the “wrong” language constitutes a waste
of bandwidth. In both settings the best classifiers have a high accuracy with
an F1-measure between 95 (for English) and 98 (for Italian) for the Adobe Flash
pages and a precision between 90 (for Italian) and 97 (for French) for the language-focused
crawler."
article_number: '3'
article_processing_charge: No
article_type: original
author:
- first_name: Eda
full_name: Baykan, Eda
last_name: Baykan
- first_name: Ingmar
full_name: Weber, Ingmar
last_name: Weber
- first_name: Monika H
full_name: Henzinger, Monika H
id: 540c9bbd-f2de-11ec-812d-d04a5be85630
last_name: Henzinger
orcid: 0000-0002-5008-6530
citation:
ama: Baykan E, Weber I, Henzinger M. A comprehensive study of techniques for URL-based
web page language classification. ACM Transactions on the Web. 2013;7(1).
doi:10.1145/2435215.2435218
apa: Baykan, E., Weber, I., & Henzinger, M. (2013). A comprehensive study of
techniques for URL-based web page language classification. ACM Transactions
on the Web. Association for Computing Machinery. https://doi.org/10.1145/2435215.2435218
chicago: Baykan, Eda, Ingmar Weber, and Monika Henzinger. “A Comprehensive Study
of Techniques for URL-Based Web Page Language Classification.” ACM Transactions
on the Web. Association for Computing Machinery, 2013. https://doi.org/10.1145/2435215.2435218.
ieee: E. Baykan, I. Weber, and M. Henzinger, “A comprehensive study of techniques
for URL-based web page language classification,” ACM Transactions on the Web,
vol. 7, no. 1. Association for Computing Machinery, 2013.
ista: Baykan E, Weber I, Henzinger M. 2013. A comprehensive study of techniques
for URL-based web page language classification. ACM Transactions on the Web. 7(1),
3.
mla: Baykan, Eda, et al. “A Comprehensive Study of Techniques for URL-Based Web
Page Language Classification.” ACM Transactions on the Web, vol. 7, no.
1, 3, Association for Computing Machinery, 2013, doi:10.1145/2435215.2435218.
short: E. Baykan, I. Weber, M. Henzinger, ACM Transactions on the Web 7 (2013).
date_created: 2022-07-27T12:50:18Z
date_published: 2013-03-01T00:00:00Z
date_updated: 2024-11-06T12:07:18Z
day: '01'
doi: 10.1145/2435215.2435218
extern: '1'
intvolume: ' 7'
issue: '1'
keyword:
- Computer Networks and Communications
language:
- iso: eng
month: '03'
oa_version: None
publication: ACM Transactions on the Web
publication_identifier:
eissn:
- 1559-114X
issn:
- 1559-1131
publication_status: published
publisher: Association for Computing Machinery
quality_controlled: '1'
scopus_import: '1'
status: public
title: A comprehensive study of techniques for URL-based web page language classification
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 7
year: '2013'
...