---
_id: '7595'
abstract:
- lang: eng
text: Inositol 1,3,4-trisphosphate 5/6 kinase (ITPK) phosphorylates inositol 1,3,4-trisphosphate
to form inositol 1,3,4,5-tetrakisphosphate and inositol 1,3,4,6-tetrakisphosphate
which can be finally transferred to inositol hexaphosphate (IP6) and play important
roles during plant growth and development. There are 4 putative ITPK members in
Arabidopsis. Expression pattern analysis showed that ITPK2 is constitutively expressed
in various tissues. A T-DNA knockout mutant of ITPK2 was identified and scanning
electron microscopy (SEM) analysis showed that the epidermis structure of seed
coat was irregularly formed in seeds of itpk2-1 mutant, resulting in the increased
permeability of seed coat to tetrazolium salts. Further analysis by gas chromatography
coupled with mass spectrometry of lipid polyester monomers in cell wall confirmed
a dramatic decrease in composition of suberin and cutin, which relate to the permeability
of seed coat and the formation of which is accompanied with seed coat development.
These results indicate that ITPK2 plays an essential role in seed coat development
and lipid polyester barrier formation.
article_processing_charge: No
article_type: original
author:
- first_name: Yong
full_name: Tang, Yong
last_name: Tang
- first_name: Shutang
full_name: Tan, Shutang
id: 2DE75584-F248-11E8-B48F-1D18A9856A87
last_name: Tan
orcid: 0000-0002-0471-8285
- first_name: Hongwei
full_name: Xue, Hongwei
last_name: Xue
citation:
ama: Tang Y, Tan S, Xue H. Arabidopsis inositol 1,3,4-trisphosphate 5/6 kinase 2
is required for seed coat development. Acta Biochimica et Biophysica Sinica.
2013;45(7):549-560. doi:10.1093/abbs/gmt039
apa: Tang, Y., Tan, S., & Xue, H. (2013). Arabidopsis inositol 1,3,4-trisphosphate
5/6 kinase 2 is required for seed coat development. Acta Biochimica et Biophysica
Sinica. Oxford University Press. https://doi.org/10.1093/abbs/gmt039
chicago: Tang, Yong, Shutang Tan, and Hongwei Xue. “Arabidopsis Inositol 1,3,4-Trisphosphate
5/6 Kinase 2 Is Required for Seed Coat Development.” Acta Biochimica et Biophysica
Sinica. Oxford University Press, 2013. https://doi.org/10.1093/abbs/gmt039.
ieee: Y. Tang, S. Tan, and H. Xue, “Arabidopsis inositol 1,3,4-trisphosphate 5/6
kinase 2 is required for seed coat development,” Acta Biochimica et Biophysica
Sinica, vol. 45, no. 7. Oxford University Press, pp. 549–560, 2013.
ista: Tang Y, Tan S, Xue H. 2013. Arabidopsis inositol 1,3,4-trisphosphate 5/6 kinase
2 is required for seed coat development. Acta Biochimica et Biophysica Sinica.
45(7), 549–560.
mla: Tang, Yong, et al. “Arabidopsis Inositol 1,3,4-Trisphosphate 5/6 Kinase 2 Is
Required for Seed Coat Development.” Acta Biochimica et Biophysica Sinica,
vol. 45, no. 7, Oxford University Press, 2013, pp. 549–60, doi:10.1093/abbs/gmt039.
short: Y. Tang, S. Tan, H. Xue, Acta Biochimica et Biophysica Sinica 45 (2013) 549–560.
date_created: 2020-03-21T16:06:36Z
date_published: 2013-07-01T00:00:00Z
date_updated: 2021-01-12T08:14:23Z
day: '01'
doi: 10.1093/abbs/gmt039
extern: '1'
external_id:
pmid:
- '23595027'
intvolume: ' 45'
issue: '7'
language:
- iso: eng
month: '07'
oa_version: None
page: 549-560
pmid: 1
publication: Acta Biochimica et Biophysica Sinica
publication_identifier:
issn:
- 1745-7270
- 1672-9145
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
status: public
title: Arabidopsis inositol 1,3,4-trisphosphate 5/6 kinase 2 is required for seed
coat development
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 45
year: '2013'
...
---
_id: '352'
abstract:
- lang: eng
text: The presence of organic ligands on the surface of colloidal nanoparticles
strongly limits their performance in technological applications where charge carrier
transfer/transport plays an important role. We use metal salts, matched with the
nanoparticle composition, to eliminate the surface organic ligands without introducing
extrinsic impurities in the final nanomaterial. The potential of the simple, general
and scalable processes presented here is demonstrated by characterizing the thermoelectric
properties of nanostructured Ag2Te produced by the bottom up assembly of Ag2Te
nanocrystals. A 6-fold increase of the thermoelectric figure of merit of Ag2Te
was obtained when organic ligands were displaced by AgNO3. The same procedure
can enhance the performance of nanocrystals and nanocrystal-based devices in a
broad range of applications, from photovoltaics and thermoelectrics to catalysis.
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: Alexey
full_name: Shavel, Alexey
last_name: Shavel
- first_name: Oscar
full_name: Durá, Oscar
last_name: Durá
- first_name: Marco
full_name: López De La Torre, Marco
last_name: López De La Torre
- first_name: Andreu
full_name: Cabot, Andreu
last_name: Cabot
citation:
ama: 'Cadavid D, Ibáñez M, Shavel A, Durá O, López De La Torre M, Cabot A. Organic
ligand displacement by metal salts to enhance nanoparticle functionality: Thermoelectric
properties of Ag inf 2 inf Te. Journal of Materials Chemistry A. 2013;1(15):4864-4870.
doi:10.1039/C3TA01455J'
apa: 'Cadavid, D., Ibáñez, M., Shavel, A., Durá, O., López De La Torre, M., &
Cabot, A. (2013). Organic ligand displacement by metal salts to enhance nanoparticle
functionality: Thermoelectric properties of Ag inf 2 inf Te. Journal of Materials
Chemistry A. Royal Society of Chemistry. https://doi.org/10.1039/C3TA01455J'
chicago: 'Cadavid, Doris, Maria Ibáñez, Alexey Shavel, Oscar Durá, Marco López De
La Torre, and Andreu Cabot. “Organic Ligand Displacement by Metal Salts to Enhance
Nanoparticle Functionality: Thermoelectric Properties of Ag Inf 2 Inf Te.” Journal
of Materials Chemistry A. Royal Society of Chemistry, 2013. https://doi.org/10.1039/C3TA01455J.'
ieee: 'D. Cadavid, M. Ibáñez, A. Shavel, O. Durá, M. López De La Torre, and A. Cabot,
“Organic ligand displacement by metal salts to enhance nanoparticle functionality:
Thermoelectric properties of Ag inf 2 inf Te,” Journal of Materials Chemistry
A, vol. 1, no. 15. Royal Society of Chemistry, pp. 4864–4870, 2013.'
ista: 'Cadavid D, Ibáñez M, Shavel A, Durá O, López De La Torre M, Cabot A. 2013.
Organic ligand displacement by metal salts to enhance nanoparticle functionality:
Thermoelectric properties of Ag inf 2 inf Te. Journal of Materials Chemistry A.
1(15), 4864–4870.'
mla: 'Cadavid, Doris, et al. “Organic Ligand Displacement by Metal Salts to Enhance
Nanoparticle Functionality: Thermoelectric Properties of Ag Inf 2 Inf Te.” Journal
of Materials Chemistry A, vol. 1, no. 15, Royal Society of Chemistry, 2013,
pp. 4864–70, doi:10.1039/C3TA01455J.'
short: D. Cadavid, M. Ibáñez, A. Shavel, O. Durá, M. López De La Torre, A. Cabot,
Journal of Materials Chemistry A 1 (2013) 4864–4870.
date_created: 2018-12-11T11:45:58Z
date_published: 2013-02-13T00:00:00Z
date_updated: 2021-01-12T07:44:02Z
day: '13'
doi: 10.1039/C3TA01455J
extern: '1'
intvolume: ' 1'
issue: '15'
language:
- iso: eng
month: '02'
oa_version: None
page: 4864 - 4870
publication: Journal of Materials Chemistry A
publication_status: published
publisher: Royal Society of Chemistry
publist_id: '7481'
quality_controlled: '1'
status: public
title: 'Organic ligand displacement by metal salts to enhance nanoparticle functionality:
Thermoelectric properties of Ag inf 2 inf Te'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 1
year: '2013'
...
---
_id: '11751'
abstract:
- lang: eng
text: The Seebeck coefficients, electrical resistivities, total thermal conductivities,
and magnetization are reported for temperatures between 5 and 350 K for n-type
Bi0.88Sb0.12 nano-composite alloys made by Ho-doping at the 0, 1, and 3 % atomic
levels. The alloys were prepared using a dc hot-pressing method, and are shown
to be single phase for both Ho contents with grain sizes on the average of 900
nm. We find the parent compound has a maximum of ZT = 0.28 at 231 K, while doping
1 % Ho increases the maximum ZT to 0.31 at 221 K and the 3 % doped sample suppresses
the maximum ZT = 0.24 at a temperature of 260 K.
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: K. C.
full_name: Lukas, K. C.
last_name: Lukas
- first_name: G.
full_name: Joshi, G.
last_name: Joshi
- first_name: Kimberly A
full_name: Modic, Kimberly A
id: 13C26AC0-EB69-11E9-87C6-5F3BE6697425
last_name: Modic
orcid: 0000-0001-9760-3147
- first_name: Z. F.
full_name: Ren, Z. F.
last_name: Ren
- first_name: C. P.
full_name: Opeil, C. P.
last_name: Opeil
citation:
ama: Lukas KC, Joshi G, Modic KA, Ren ZF, Opeil CP. Thermoelectric properties of
Ho-doped Bi0.88Sb0.12. Journal of Materials Science. 2012;47(15):5729-5734.
doi:10.1007/s10853-012-6463-6
apa: Lukas, K. C., Joshi, G., Modic, K. A., Ren, Z. F., & Opeil, C. P. (2012).
Thermoelectric properties of Ho-doped Bi0.88Sb0.12. Journal of Materials Science.
Springer Nature. https://doi.org/10.1007/s10853-012-6463-6
chicago: Lukas, K. C., G. Joshi, Kimberly A Modic, Z. F. Ren, and C. P. Opeil. “Thermoelectric
Properties of Ho-Doped Bi0.88Sb0.12.” Journal of Materials Science. Springer
Nature, 2012. https://doi.org/10.1007/s10853-012-6463-6.
ieee: K. C. Lukas, G. Joshi, K. A. Modic, Z. F. Ren, and C. P. Opeil, “Thermoelectric
properties of Ho-doped Bi0.88Sb0.12,” Journal of Materials Science, vol.
47, no. 15. Springer Nature, pp. 5729–5734, 2012.
ista: Lukas KC, Joshi G, Modic KA, Ren ZF, Opeil CP. 2012. Thermoelectric properties
of Ho-doped Bi0.88Sb0.12. Journal of Materials Science. 47(15), 5729–5734.
mla: Lukas, K. C., et al. “Thermoelectric Properties of Ho-Doped Bi0.88Sb0.12.”
Journal of Materials Science, vol. 47, no. 15, Springer Nature, 2012, pp.
5729–34, doi:10.1007/s10853-012-6463-6.
short: K.C. Lukas, G. Joshi, K.A. Modic, Z.F. Ren, C.P. Opeil, Journal of Materials
Science 47 (2012) 5729–5734.
date_created: 2022-08-08T08:28:20Z
date_published: 2012-08-01T00:00:00Z
date_updated: 2022-08-11T09:34:39Z
day: '01'
doi: 10.1007/s10853-012-6463-6
extern: '1'
external_id:
arxiv:
- '1201.6304'
intvolume: ' 47'
issue: '15'
language:
- iso: eng
month: '08'
oa_version: Preprint
page: 5729-5734
publication: Journal of Materials Science
publication_identifier:
eissn:
- 1573-4803
issn:
- 0022-2461
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Thermoelectric properties of Ho-doped Bi0.88Sb0.12
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 47
year: '2012'
...
---
_id: '2771'
abstract:
- lang: eng
text: We consider a magnetic Schrödinger operator in two dimensions. The magnetic
field is given as the sum of a large and constant magnetic field and a random
magnetic field. Moreover, we allow for an additional deterministic potential as
well as a magnetic field which are both periodic. We show that the spectrum of
this operator is contained in broadened bands around the Landau levels and that
the edges of these bands consist of pure point spectrum with exponentially decaying
eigenfunctions. The proof is based on a recent Wegner estimate obtained in Erdos
and Hasler (Commun. Math. Phys., preprint, arXiv:1012.5185) and a multiscale analysis.
author:
- first_name: László
full_name: László Erdös
id: 4DBD5372-F248-11E8-B48F-1D18A9856A87
last_name: Erdös
orcid: 0000-0001-5366-9603
- first_name: David
full_name: Hasler, David G
last_name: Hasler
citation:
ama: Erdös L, Hasler D. Anderson localization at band edges for random magnetic
fields. Journal of Statistical Physics. 2012;146(5):900-923. doi:10.1007/s10955-012-0445-6
apa: Erdös, L., & Hasler, D. (2012). Anderson localization at band edges for
random magnetic fields. Journal of Statistical Physics. Springer. https://doi.org/10.1007/s10955-012-0445-6
chicago: Erdös, László, and David Hasler. “Anderson Localization at Band Edges for
Random Magnetic Fields.” Journal of Statistical Physics. Springer, 2012.
https://doi.org/10.1007/s10955-012-0445-6.
ieee: L. Erdös and D. Hasler, “Anderson localization at band edges for random magnetic
fields,” Journal of Statistical Physics, vol. 146, no. 5. Springer, pp.
900–923, 2012.
ista: Erdös L, Hasler D. 2012. Anderson localization at band edges for random magnetic
fields. Journal of Statistical Physics. 146(5), 900–923.
mla: Erdös, László, and David Hasler. “Anderson Localization at Band Edges for Random
Magnetic Fields.” Journal of Statistical Physics, vol. 146, no. 5, Springer,
2012, pp. 900–23, doi:10.1007/s10955-012-0445-6.
short: L. Erdös, D. Hasler, Journal of Statistical Physics 146 (2012) 900–923.
date_created: 2018-12-11T11:59:31Z
date_published: 2012-03-01T00:00:00Z
date_updated: 2021-01-12T06:59:35Z
day: '01'
doi: 10.1007/s10955-012-0445-6
extern: 1
intvolume: ' 146'
issue: '5'
month: '03'
page: 900 - 923
publication: Journal of Statistical Physics
publication_status: published
publisher: Springer
publist_id: '4119'
quality_controlled: 0
status: public
title: Anderson localization at band edges for random magnetic fields
type: journal_article
volume: 146
year: '2012'
...
---
_id: '2773'
abstract:
- lang: eng
text: Recently we proved [3, 4, 6, 7, 9, 10, 11] that the eigenvalue correlation
functions of a general class of random matrices converge, weakly with respect
to the energy, to the corresponding ones of Gaussian matrices. Tao and Vu [15]
gave a proof that for the special case of Hermitian Wigner matrices the convergence
can be strengthened to vague convergence at any fixed energy in the bulk. In this
article we show that this theorem is an immediate corollary of our earlier results.
Indeed, a more general form of this theorem also follows directly from our work
[2].
author:
- first_name: László
full_name: László Erdös
id: 4DBD5372-F248-11E8-B48F-1D18A9856A87
last_name: Erdös
orcid: 0000-0001-5366-9603
- first_name: Horng
full_name: Yau, Horng-Tzer
last_name: Yau
citation:
ama: Erdös L, Yau H. A comment on the Wigner-Dyson-Mehta bulk universality conjecture
for Wigner matrices. Electronic Journal of Probability. 2012;17. doi:10.1214/EJP.v17-1779
apa: Erdös, L., & Yau, H. (2012). A comment on the Wigner-Dyson-Mehta bulk universality
conjecture for Wigner matrices. Electronic Journal of Probability. Institute
of Mathematical Statistics. https://doi.org/10.1214/EJP.v17-1779
chicago: Erdös, László, and Horng Yau. “A Comment on the Wigner-Dyson-Mehta Bulk
Universality Conjecture for Wigner Matrices.” Electronic Journal of Probability.
Institute of Mathematical Statistics, 2012. https://doi.org/10.1214/EJP.v17-1779.
ieee: L. Erdös and H. Yau, “A comment on the Wigner-Dyson-Mehta bulk universality
conjecture for Wigner matrices,” Electronic Journal of Probability, vol.
17. Institute of Mathematical Statistics, 2012.
ista: Erdös L, Yau H. 2012. A comment on the Wigner-Dyson-Mehta bulk universality
conjecture for Wigner matrices. Electronic Journal of Probability. 17.
mla: Erdös, László, and Horng Yau. “A Comment on the Wigner-Dyson-Mehta Bulk Universality
Conjecture for Wigner Matrices.” Electronic Journal of Probability, vol.
17, Institute of Mathematical Statistics, 2012, doi:10.1214/EJP.v17-1779.
short: L. Erdös, H. Yau, Electronic Journal of Probability 17 (2012).
date_created: 2018-12-11T11:59:31Z
date_published: 2012-04-10T00:00:00Z
date_updated: 2021-01-12T06:59:36Z
day: '10'
doi: 10.1214/EJP.v17-1779
extern: 1
intvolume: ' 17'
month: '04'
publication: Electronic Journal of Probability
publication_status: published
publisher: Institute of Mathematical Statistics
publist_id: '4117'
quality_controlled: 0
status: public
title: A comment on the Wigner-Dyson-Mehta bulk universality conjecture for Wigner
matrices
type: journal_article
volume: 17
year: '2012'
...
---
_id: '3111'
abstract:
- lang: eng
text: PIN-FORMED (PIN) protein-mediated auxin polar transport is critically important
for development, pattern formation, and morphogenesis in plants. Auxin has been
implicated in the regulation of polar auxin transport by inhibiting PIN endocytosis
[1, 2], but how auxin regulates this process is poorly understood. Our genetic
screen identified the Arabidopsis SPIKE1 (SPK1) gene whose loss-of-function mutations
increased lateral root density and retarded gravitropic responses, as do pin2
knockout mutations [3]. SPK1 belongs to the conserved DHR2-Dock family of Rho
guanine nucleotide exchange factors [4-6]. The spk1 mutations induced PIN2 internalization
that was not suppressed by auxin, as did the loss-of-function mutations for Rho-like
GTPase from Plants 6 (ROP6)-GTPase or its effector RIC1. Furthermore, SPK1 was
required for auxin induction of ROP6 activation. Our results have established
a Rho GTPase-based auxin signaling pathway that maintains PIN2 polar distribution
to the plasma membrane via inhibition of its internalization in Arabidopsis roots.
Our findings provide new insights into signaling mechanisms that underlie the
regulation of the dynamic trafficking of PINs required for long-distance auxin
transport and that link auxin signaling to PIN-mediated pattern formation and
morphogenesis.
author:
- first_name: Deshu
full_name: Lin, Deshu
last_name: Lin
- first_name: Shingo
full_name: Nagawa, Shingo
last_name: Nagawa
- first_name: Jisheng
full_name: Chen, Jisheng
last_name: Chen
- first_name: Lingyan
full_name: Cao, Lingyan
last_name: Cao
- first_name: Xu
full_name: Xu Chen
id: 4E5ADCAA-F248-11E8-B48F-1D18A9856A87
last_name: Chen
- first_name: Tongda
full_name: Xu, Tongda
last_name: Xu
- first_name: Hongjiang
full_name: Hongjiang Li
id: 33CA54A6-F248-11E8-B48F-1D18A9856A87
last_name: Li
orcid: 0000-0001-5039-9660
- first_name: Pankaj
full_name: Dhonukshe, Pankaj
last_name: Dhonukshe
- first_name: Chizuko
full_name: Yamamuro, Chizuko
last_name: Yamamuro
- first_name: Jirí
full_name: Jirí Friml
id: 4159519E-F248-11E8-B48F-1D18A9856A87
last_name: Friml
orcid: 0000-0002-8302-7596
- first_name: Ben
full_name: Scheres, Ben
last_name: Scheres
- first_name: Ying
full_name: Fu, Ying
last_name: Fu
- first_name: Zhenbiao
full_name: Yang, Zhenbiao
last_name: Yang
citation:
ama: Lin D, Nagawa S, Chen J, et al. A ROP GTPase dependent auxin signaling pathway
regulates the subcellular distribution of PIN2 in Arabidopsis roots. Current
Biology. 2012;22(14):1319-1325. doi:10.1016/j.cub.2012.05.019
apa: Lin, D., Nagawa, S., Chen, J., Cao, L., Chen, X., Xu, T., … Yang, Z. (2012).
A ROP GTPase dependent auxin signaling pathway regulates the subcellular distribution
of PIN2 in Arabidopsis roots. Current Biology. Cell Press. https://doi.org/10.1016/j.cub.2012.05.019
chicago: Lin, Deshu, Shingo Nagawa, Jisheng Chen, Lingyan Cao, Xu Chen, Tongda Xu,
Hongjiang Li, et al. “A ROP GTPase Dependent Auxin Signaling Pathway Regulates
the Subcellular Distribution of PIN2 in Arabidopsis Roots.” Current Biology.
Cell Press, 2012. https://doi.org/10.1016/j.cub.2012.05.019.
ieee: D. Lin et al., “A ROP GTPase dependent auxin signaling pathway regulates
the subcellular distribution of PIN2 in Arabidopsis roots,” Current Biology,
vol. 22, no. 14. Cell Press, pp. 1319–1325, 2012.
ista: Lin D, Nagawa S, Chen J, Cao L, Chen X, Xu T, Li H, Dhonukshe P, Yamamuro
C, Friml J, Scheres B, Fu Y, Yang Z. 2012. A ROP GTPase dependent auxin signaling
pathway regulates the subcellular distribution of PIN2 in Arabidopsis roots. Current
Biology. 22(14), 1319–1325.
mla: Lin, Deshu, et al. “A ROP GTPase Dependent Auxin Signaling Pathway Regulates
the Subcellular Distribution of PIN2 in Arabidopsis Roots.” Current Biology,
vol. 22, no. 14, Cell Press, 2012, pp. 1319–25, doi:10.1016/j.cub.2012.05.019.
short: D. Lin, S. Nagawa, J. Chen, L. Cao, X. Chen, T. Xu, H. Li, P. Dhonukshe,
C. Yamamuro, J. Friml, B. Scheres, Y. Fu, Z. Yang, Current Biology 22 (2012) 1319–1325.
date_created: 2018-12-11T12:01:27Z
date_published: 2012-07-24T00:00:00Z
date_updated: 2021-01-12T07:41:08Z
day: '24'
doi: 10.1016/j.cub.2012.05.019
extern: 1
intvolume: ' 22'
issue: '14'
month: '07'
page: 1319 - 1325
publication: Current Biology
publication_status: published
publisher: Cell Press
publist_id: '3588'
quality_controlled: 0
status: public
title: A ROP GTPase dependent auxin signaling pathway regulates the subcellular distribution
of PIN2 in Arabidopsis roots
type: journal_article
volume: 22
year: '2012'
...
---
_id: '3160'
abstract:
- lang: eng
text: There is a long-running controversy about how early cell fate decisions are
made in the developing mammalian embryo. 1,2 In particular, it is controversial
when the first events that can predict the establishment of the pluripotent and
extra-embryonic lineages in the blastocyst of the pre-implantation embryo occur.
It has long been proposed that the position and polarity of cells at the 16- to
32-cell stage embryo influence their decision to either give rise to the pluripotent
cell lineage that eventually contributes to the inner cell mass (ICM), comprising
the primitive endoderm (PE) and the epiblast (EPI), or the extra-embryonic trophectoderm
(TE) surrounding the blastocoel. The positioning of cells in the embryo at this
developmental stage could largely be the result of random events, making this
a stochastic model of cell lineage allocation. Contrary to such a stochastic model,
some studies have detected putative differences in the lineage potential of individual
blastomeres before compaction, indicating that the first cell fate decisions may
occur as early as at the 4-cell stage. Using a non-invasive, quantitative in vivo
imaging assay to study the kinetic behavior of Oct4 (also known as POU5F1), a
key transcription factor (TF) controlling pre-implantation development in the
mouse embryo, 3-5 a recent study identifies Oct4 kinetics as a predictive measure
of cell lineage patterning in the early mouse embryo. 6 Here, we discuss the implications
of such molecular heterogeneities in early development and offer potential avenues
toward a mechanistic understanding of these observations, contributing to the
resolution of the controversy of developmental cell lineage allocation.
article_processing_charge: No
author:
- first_name: Periklis
full_name: Pantazis, Periklis
last_name: Pantazis
- first_name: Tobias
full_name: Bollenbach, Tobias
id: 3E6DB97A-F248-11E8-B48F-1D18A9856A87
last_name: Bollenbach
orcid: 0000-0003-4398-476X
citation:
ama: Pantazis P, Bollenbach MT. Transcription factor kinetics and the emerging asymmetry
in the early mammalian embryo. Cell Cycle. 2012;11(11):2055-2058. doi:10.4161/cc.20118
apa: Pantazis, P., & Bollenbach, M. T. (2012). Transcription factor kinetics
and the emerging asymmetry in the early mammalian embryo. Cell Cycle. Taylor
and Francis. https://doi.org/10.4161/cc.20118
chicago: Pantazis, Periklis, and Mark Tobias Bollenbach. “Transcription Factor Kinetics
and the Emerging Asymmetry in the Early Mammalian Embryo.” Cell Cycle.
Taylor and Francis, 2012. https://doi.org/10.4161/cc.20118.
ieee: P. Pantazis and M. T. Bollenbach, “Transcription factor kinetics and the emerging
asymmetry in the early mammalian embryo,” Cell Cycle, vol. 11, no. 11.
Taylor and Francis, pp. 2055–2058, 2012.
ista: Pantazis P, Bollenbach MT. 2012. Transcription factor kinetics and the emerging
asymmetry in the early mammalian embryo. Cell Cycle. 11(11), 2055–2058.
mla: Pantazis, Periklis, and Mark Tobias Bollenbach. “Transcription Factor Kinetics
and the Emerging Asymmetry in the Early Mammalian Embryo.” Cell Cycle,
vol. 11, no. 11, Taylor and Francis, 2012, pp. 2055–58, doi:10.4161/cc.20118.
short: P. Pantazis, M.T. Bollenbach, Cell Cycle 11 (2012) 2055–2058.
corr_author: '1'
date_created: 2018-12-11T12:01:44Z
date_published: 2012-06-01T00:00:00Z
date_updated: 2025-09-30T07:53:56Z
day: '01'
department:
- _id: ToBo
doi: 10.4161/cc.20118
external_id:
isi:
- '000304770100011'
intvolume: ' 11'
isi: 1
issue: '11'
language:
- iso: eng
month: '06'
oa_version: None
page: 2055 - 2058
publication: Cell Cycle
publication_status: published
publisher: Taylor and Francis
publist_id: '3531'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Transcription factor kinetics and the emerging asymmetry in the early mammalian
embryo
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 11
year: '2012'
...
---
_id: '3166'
abstract:
- lang: eng
text: 'There is evidence that the genetic code was established prior to the existence
of proteins, when metabolism was powered by ribozymes. Also, early proto-organisms
had to rely on simple anaerobic bioenergetic processes. In this work I propose
that amino acid fermentation powered metabolism in the RNA world, and that this
was facilitated by proto-adapters, the precursors of the tRNAs. Amino acids were
used as carbon sources rather than as catalytic or structural elements. In modern
bacteria, amino acid fermentation is known as the Stickland reaction. This pathway
involves two amino acids: the first undergoes oxidative deamination, and the second
acts as an electron acceptor through reductive deamination. This redox reaction
results in two keto acids that are employed to synthesise ATP via substrate-level
phosphorylation. The Stickland reaction is the basic bioenergetic pathway of some
bacteria of the genus Clostridium. Two other facts support Stickland fermentation
in the RNA world. First, several Stickland amino acid pairs are synthesised in
abiotic amino acid synthesis. This suggests that amino acids that could be used
as an energy substrate were freely available. Second, anticodons that have complementary
sequences often correspond to amino acids that form Stickland pairs. The main
hypothesis of this paper is that pairs of complementary proto-adapters were assigned
to Stickland amino acids pairs. There are signatures of this hypothesis in the
genetic code. Furthermore, it is argued that the proto-adapters formed double
strands that brought amino acid pairs into proximity to facilitate their mutual
redox reaction, structurally constraining the anticodon pairs that are assigned
to these amino acid pairs. Significance tests which randomise the code are performed
to study the extent of the variability of the energetic (ATP) yield. Random assignments
can lead to a substantial yield of ATP and maintain enough variability, thus selection
can act and refine the assignments into a proto-code that optimises the energetic
yield. Monte Carlo simulations are performed to evaluate the establishment of
these simple proto-codes, based on amino acid substitutions and codon swapping.
In all cases, donor amino acids are assigned to anticodons composed of U+G, and
have low redundancy (1-2 codons), whereas acceptor amino acids are assigned to
the the remaining codons. These bioenergetic and structural constraints allow
for a metabolic role for amino acids before their co-option as catalyst cofactors.
Reviewers: this article was reviewed by Prof. William Martin, Prof. Eors Szathmary
(nominated by Dr. Gaspar Jekely) and Dr. Adam Kun (nominated by Dr. Sandor Pongor)'
acknowledgement: 'The author was supported by the ERC-2009-AdG Grant for project 250152
SELECTIONINFORMATION. '
article_number: '6'
article_processing_charge: No
author:
- first_name: Harold
full_name: Vladar, Harold
id: 2A181218-F248-11E8-B48F-1D18A9856A87
last_name: Vladar
orcid: 0000-0002-5985-7653
citation:
ama: de Vladar H. Amino acid fermentation at the origin of the genetic code. Biology
Direct. 2012;7. doi:10.1186/1745-6150-7-6
apa: de Vladar, H. (2012). Amino acid fermentation at the origin of the genetic
code. Biology Direct. BioMed Central. https://doi.org/10.1186/1745-6150-7-6
chicago: Vladar, Harold de. “Amino Acid Fermentation at the Origin of the Genetic
Code.” Biology Direct. BioMed Central, 2012. https://doi.org/10.1186/1745-6150-7-6.
ieee: H. de Vladar, “Amino acid fermentation at the origin of the genetic code,”
Biology Direct, vol. 7. BioMed Central, 2012.
ista: de Vladar H. 2012. Amino acid fermentation at the origin of the genetic code.
Biology Direct. 7, 6.
mla: de Vladar, Harold. “Amino Acid Fermentation at the Origin of the Genetic Code.”
Biology Direct, vol. 7, 6, BioMed Central, 2012, doi:10.1186/1745-6150-7-6.
short: H. de Vladar, Biology Direct 7 (2012).
corr_author: '1'
date_created: 2018-12-11T12:01:46Z
date_published: 2012-02-10T00:00:00Z
date_updated: 2025-09-30T07:51:20Z
day: '10'
ddc:
- '570'
- '576'
department:
- _id: NiBa
doi: 10.1186/1745-6150-7-6
ec_funded: 1
external_id:
isi:
- '000305269300001'
file:
- access_level: open_access
checksum: e511e401e239ef608a7fd79b21a06d78
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:15:44Z
date_updated: 2020-07-14T12:46:02Z
file_id: '5166'
file_name: IST-2012-99-v1+1_1745-6150-7-6.pdf
file_size: 4099536
relation: main_file
file_date_updated: 2020-07-14T12:46:02Z
has_accepted_license: '1'
intvolume: ' 7'
isi: 1
language:
- iso: eng
month: '02'
oa: 1
oa_version: Published Version
project:
- _id: 25B07788-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '250152'
name: Limits to selection in biology and in evolutionary computation
publication: Biology Direct
publication_status: published
publisher: BioMed Central
publist_id: '3518'
pubrep_id: '99'
quality_controlled: '1'
status: public
title: Amino acid fermentation at the origin of the genetic code
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 7
year: '2012'
...
---
OA_place: repository
OA_type: green
_id: '18737'
abstract:
- lang: eng
text: Supermassive black holes (SMBHs) are common in local galactic nuclei, and
SMBHs as massive as several billion solar masses already exist at redshift z =
6. These earliest SMBHs may grow by the combination of radiation-pressure-limited
accretion and mergers of stellar-mass seed BHs, left behind by the first generation
of metal-free stars, or may be formed by more rapid direct collapse of gas in
rare special environments where dense gas can accumulate without first fragmenting
into stars. This chapter offers a review of these two competing scenarios, as
well as some more exotic alternative ideas. It also briefly discusses how the
different models may be distinguished in the future by observations with JWST,
LISA and other instruments.
alternative_title:
- Astrophysics and Space Science Library
article_processing_charge: No
arxiv: 1
author:
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
orcid: 0000-0003-3633-5403
citation:
ama: 'Haiman Z. The Formation of the First Massive Black Holes. In: Wiklind T, Mobasher
B, Brumm V, eds. The First Galaxies. Berlin, Heidelberg: Springer Berlin
Heidelberg; 2012:293-341. doi:10.1007/978-3-642-32362-1_6'
apa: 'Haiman, Z. (2012). The Formation of the First Massive Black Holes. In T. Wiklind,
B. Mobasher, & V. Brumm (Eds.), The First Galaxies (pp. 293–341). Berlin,
Heidelberg: Springer Berlin Heidelberg. https://doi.org/10.1007/978-3-642-32362-1_6'
chicago: 'Haiman, Zoltán. “The Formation of the First Massive Black Holes.” In The
First Galaxies, edited by Tommy Wiklind, Bahram Mobasher, and Volker Brumm,
293–341. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. https://doi.org/10.1007/978-3-642-32362-1_6.'
ieee: 'Z. Haiman, “The Formation of the First Massive Black Holes,” in The First
Galaxies, T. Wiklind, B. Mobasher, and V. Brumm, Eds. Berlin, Heidelberg:
Springer Berlin Heidelberg, 2012, pp. 293–341.'
ista: 'Haiman Z. 2012.The Formation of the First Massive Black Holes. In: The First
Galaxies. Astrophysics and Space Science Library, , 293–341.'
mla: Haiman, Zoltán. “The Formation of the First Massive Black Holes.” The First
Galaxies, edited by Tommy Wiklind et al., Springer Berlin Heidelberg, 2012,
pp. 293–341, doi:10.1007/978-3-642-32362-1_6.
short: Z. Haiman, in:, T. Wiklind, B. Mobasher, V. Brumm (Eds.), The First Galaxies,
Springer Berlin Heidelberg, Berlin, Heidelberg, 2012, pp. 293–341.
date_created: 2025-01-03T12:30:53Z
date_published: 2012-01-01T00:00:00Z
date_updated: 2025-01-07T13:01:05Z
day: '01'
doi: 10.1007/978-3-642-32362-1_6
editor:
- first_name: Tommy
full_name: Wiklind, Tommy
last_name: Wiklind
- first_name: Bahram
full_name: Mobasher, Bahram
last_name: Mobasher
- first_name: Volker
full_name: Brumm, Volker
last_name: Brumm
extern: '1'
external_id:
arxiv:
- '1203.6075'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1203.6075
month: '01'
oa: 1
oa_version: Preprint
page: 293-341
place: Berlin, Heidelberg
publication: The First Galaxies
publication_identifier:
eisbn:
- '9783642323621'
eissn:
- 2214-7985
isbn:
- '9783642323614'
issn:
- 0067-0057
publication_status: published
publisher: Springer Berlin Heidelberg
quality_controlled: '1'
scopus_import: '1'
status: public
title: The Formation of the First Massive Black Holes
type: book_chapter
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2012'
...
---
_id: '1055'
abstract:
- lang: eng
text: In July, 2011, a 32-year-old man presented with thoracic pain radiating to
the left arm and upper dorsum, shortness of breath, and palpitations. He had had
upper back tension for 6 months. Medical history was unremarkable apart from moderate
nicotine use (two pack-years). Echocardiography, electrocardiography, and laboratory
tests were unremarkable, excluding a cardiac event. CT of the chest after chest
radiography showed a large bulla of 16 cm diameter in the right hemithorax (figure
A). We did not detect radiological evidence of underlying pulmonary disease. The
bulla wall was unremarkable and no structures were seen within the bulla.
acknowledgement: We thank the interdisciplinary team at the ELK Berlin Chest Hospital.
article_processing_charge: No
author:
- first_name: Barbara
full_name: Erne, Barbara
last_name: Erne
- first_name: Mareike
full_name: Graff, Mareike
last_name: Graff
- first_name: Wolfram
full_name: Klemm, Wolfram
last_name: Klemm
- first_name: Johann G
full_name: Danzl, Johann G
id: 42EFD3B6-F248-11E8-B48F-1D18A9856A87
last_name: Danzl
orcid: 0000-0001-8559-3973
- first_name: Gunda
full_name: Leschber, Gunda
last_name: Leschber
citation:
ama: Erne B, Graff M, Klemm W, Danzl JG, Leschber G. Bulla in the lung. The Lancet.
2012;380(9849). doi:10.1016/S0140-6736(12)60690-4
apa: Erne, B., Graff, M., Klemm, W., Danzl, J. G., & Leschber, G. (2012). Bulla
in the lung. The Lancet. Elsevier. https://doi.org/10.1016/S0140-6736(12)60690-4
chicago: Erne, Barbara, Mareike Graff, Wolfram Klemm, Johann G Danzl, and Gunda
Leschber. “Bulla in the Lung.” The Lancet. Elsevier, 2012. https://doi.org/10.1016/S0140-6736(12)60690-4.
ieee: B. Erne, M. Graff, W. Klemm, J. G. Danzl, and G. Leschber, “Bulla in the lung,”
The Lancet, vol. 380, no. 9849. Elsevier, 2012.
ista: Erne B, Graff M, Klemm W, Danzl JG, Leschber G. 2012. Bulla in the lung. The
Lancet. 380(9849).
mla: Erne, Barbara, et al. “Bulla in the Lung.” The Lancet, vol. 380, no.
9849, Elsevier, 2012, doi:10.1016/S0140-6736(12)60690-4.
short: B. Erne, M. Graff, W. Klemm, J.G. Danzl, G. Leschber, The Lancet 380 (2012).
date_created: 2018-12-11T11:49:54Z
date_published: 2012-10-01T00:00:00Z
date_updated: 2021-01-12T06:47:57Z
day: '01'
doi: 10.1016/S0140-6736(12)60690-4
extern: '1'
intvolume: ' 380'
issue: '9849'
language:
- iso: eng
month: '10'
oa_version: None
publication: The Lancet
publication_status: published
publisher: Elsevier
publist_id: '6333'
status: public
title: Bulla in the lung
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 380
year: '2012'
...
---
OA_type: closed access
_id: '21105'
abstract:
- lang: eng
text: The hexamer duplex d(CACGCG).d(CGCGTG) produces unusual hexagonal ring shaped
crystals when crystallized in the presence of cobalt hexammine chloride. Observation
of the growth of these crystals over a period of about 6 days indicated that this
morphology resulted from radial dissolution of the crystal from the center of
the well-formed hexagonal plates. X-ray diffraction studies were carried out for
crystals of four stages in the ring crystal morphology. The structure of the DNA
in all four crystals was the Z type DNA double helix. The packing mode of the
Z DNA duplex in all four crystal structures was that of the ‘spermine’ form. The
crystal morphology changes from hexagonal plates to hexagonal rings without any
apparent change in the molecular structure of the oligonucleotide or helical packing
of the duplexes.
article_processing_charge: No
article_type: original
author:
- first_name: Pradeep K
full_name: Mandal, Pradeep K
id: 6a3def15-d4b4-11ef-9fa9-a24c1f545ec3
last_name: Mandal
orcid: 0000-0001-5996-956X
- first_name: Arun Richard
full_name: Chandrasekaran, Arun Richard
last_name: Chandrasekaran
- first_name: Bharath Raj
full_name: Madhanagopal, Bharath Raj
last_name: Madhanagopal
- first_name: Sarkarai
full_name: Venkadesh, Sarkarai
last_name: Venkadesh
- first_name: Namasivayam
full_name: Gautham, Namasivayam
last_name: Gautham
citation:
ama: 'Mandal PK, Chandrasekaran AR, Madhanagopal BR, Venkadesh S, Gautham N. Ring
crystals of oligonucleotides: Growth stages and X-ray diffraction studies. Journal
of Crystal Growth. 2012;354(1):20-26. doi:10.1016/j.jcrysgro.2012.05.029'
apa: 'Mandal, P. K., Chandrasekaran, A. R., Madhanagopal, B. R., Venkadesh, S.,
& Gautham, N. (2012). Ring crystals of oligonucleotides: Growth stages and
X-ray diffraction studies. Journal of Crystal Growth. Elsevier. https://doi.org/10.1016/j.jcrysgro.2012.05.029'
chicago: 'Mandal, Pradeep K, Arun Richard Chandrasekaran, Bharath Raj Madhanagopal,
Sarkarai Venkadesh, and Namasivayam Gautham. “Ring Crystals of Oligonucleotides:
Growth Stages and X-Ray Diffraction Studies.” Journal of Crystal Growth.
Elsevier, 2012. https://doi.org/10.1016/j.jcrysgro.2012.05.029.'
ieee: 'P. K. Mandal, A. R. Chandrasekaran, B. R. Madhanagopal, S. Venkadesh, and
N. Gautham, “Ring crystals of oligonucleotides: Growth stages and X-ray diffraction
studies,” Journal of Crystal Growth, vol. 354, no. 1. Elsevier, pp. 20–26,
2012.'
ista: 'Mandal PK, Chandrasekaran AR, Madhanagopal BR, Venkadesh S, Gautham N. 2012.
Ring crystals of oligonucleotides: Growth stages and X-ray diffraction studies.
Journal of Crystal Growth. 354(1), 20–26.'
mla: 'Mandal, Pradeep K., et al. “Ring Crystals of Oligonucleotides: Growth Stages
and X-Ray Diffraction Studies.” Journal of Crystal Growth, vol. 354, no.
1, Elsevier, 2012, pp. 20–26, doi:10.1016/j.jcrysgro.2012.05.029.'
short: P.K. Mandal, A.R. Chandrasekaran, B.R. Madhanagopal, S. Venkadesh, N. Gautham,
Journal of Crystal Growth 354 (2012) 20–26.
date_created: 2026-01-29T22:02:59Z
date_published: 2012-09-01T00:00:00Z
date_updated: 2026-02-20T09:15:22Z
day: '01'
doi: 10.1016/j.jcrysgro.2012.05.029
extern: '1'
has_accepted_license: '1'
intvolume: ' 354'
issue: '1'
language:
- iso: eng
month: '09'
oa_version: None
page: 20-26
publication: Journal of Crystal Growth
publication_identifier:
issn:
- 0022-0248
publication_status: published
publisher: Elsevier
quality_controlled: '1'
status: public
title: 'Ring crystals of oligonucleotides: Growth stages and X-ray diffraction studies'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 354
year: '2012'
...
---
_id: '2399'
abstract:
- lang: eng
text: |
Bose–Einstein condensation (BEC) in cold atomic gases was first achieved experimentally in 1995 [1, 6]. After initial failed attempts with spin-polarized atomic hydrogen, the first successful demonstrations of this phenomenon used gases of rubidium and sodium atoms, respectively. Since then there has been a surge of activity in this field, with ingenious experiments putting forth more and more astonishing results about the behavior of matter at very cold temperatures.
alternative_title:
- Lecture Notes in Mathematics
author:
- first_name: Robert
full_name: Robert Seiringer
id: 4AFD0470-F248-11E8-B48F-1D18A9856A87
last_name: Seiringer
orcid: 0000-0002-6781-0521
citation:
ama: 'Seiringer R. Cold quantum gases and bose einstein condensation. In: Rivasseau
V, Seiringer R, Solovej J, Spencer T, eds. Quantum Many Body Systems. Vol
2051. Springer; 2012:55-92. doi:10.1007/978-3-642-29511-9_2'
apa: Seiringer, R. (2012). Cold quantum gases and bose einstein condensation. In
V. Rivasseau, R. Seiringer, J. Solovej, & T. Spencer (Eds.), Quantum Many
Body Systems (Vol. 2051, pp. 55–92). Springer. https://doi.org/10.1007/978-3-642-29511-9_2
chicago: Seiringer, Robert. “Cold Quantum Gases and Bose Einstein Condensation.”
In Quantum Many Body Systems, edited by Vincent Rivasseau, Robert Seiringer,
Jan Solovej, and Thomas Spencer, 2051:55–92. Springer, 2012. https://doi.org/10.1007/978-3-642-29511-9_2.
ieee: R. Seiringer, “Cold quantum gases and bose einstein condensation,” in Quantum
Many Body Systems, vol. 2051, V. Rivasseau, R. Seiringer, J. Solovej, and
T. Spencer, Eds. Springer, 2012, pp. 55–92.
ista: 'Seiringer R. 2012.Cold quantum gases and bose einstein condensation. In:
Quantum Many Body Systems. Lecture Notes in Mathematics, vol. 2051, 55–92.'
mla: Seiringer, Robert. “Cold Quantum Gases and Bose Einstein Condensation.” Quantum
Many Body Systems, edited by Vincent Rivasseau et al., vol. 2051, Springer,
2012, pp. 55–92, doi:10.1007/978-3-642-29511-9_2.
short: R. Seiringer, in:, V. Rivasseau, R. Seiringer, J. Solovej, T. Spencer (Eds.),
Quantum Many Body Systems, Springer, 2012, pp. 55–92.
date_created: 2018-12-11T11:57:26Z
date_published: 2012-01-01T00:00:00Z
date_updated: 2021-01-12T06:57:14Z
day: '01'
doi: 10.1007/978-3-642-29511-9_2
editor:
- first_name: Vincent
full_name: Rivasseau, Vincent
last_name: Rivasseau
- first_name: Robert
full_name: Robert Seiringer
id: 4AFD0470-F248-11E8-B48F-1D18A9856A87
last_name: Seiringer
orcid: 0000-0002-6781-0521
- first_name: Jan
full_name: Solovej, Jan P
last_name: Solovej
- first_name: Thomas
full_name: Spencer, Thomas
last_name: Spencer
extern: 1
intvolume: ' 2051'
month: '01'
page: 55 - 92
publication: Quantum Many Body Systems
publication_status: published
publisher: Springer
publist_id: '4526'
quality_controlled: 0
status: public
title: Cold quantum gases and bose einstein condensation
type: book_chapter
volume: 2051
year: '2012'
...
---
_id: '17613'
abstract:
- lang: eng
text: We study the interaction of a supermassive black hole (SMBH) binary and a
standard radiatively efficient thin accretion disk. We examine steady-state configurations
of the disk and migrating SMBH system, self-consistently accounting for tidal
and viscous torques and heating, radiative diffusion limited cooling, gas and
radiation pressure, and the decay of the binary's orbit. We obtain a "phase diagram"
of the system as a function of binary parameters, showing regimes in which both
the disk structure and migration have a different character. Although massive
binaries can create a central gap in the disk at large radii, the tidal barrier
of the secondary causes a significant pile-up of gas outside of its orbit, which
can lead to the closing of the gap. We find that this spillover occurs at an orbital
separation as large as ~200 M_7^{-1/2} gravitational radii, where M = 10^7 M_7
Msun is the total binary mass. If the secondary is less massive than ~10^6 Msun,
then the gap is closed before gravitational waves (GWs) start dominating the orbital
decay. In this regime, the disk is still strongly perturbed, but the piled-up
gas continuously overflows as in a porous dam, and crosses inside the secondary's
orbit. The corresponding migration rate, which we label Type 1.5, is slower than
the usual limiting cases known as Type I and II migration. Compared to an unperturbed
disk, the steady-state disk in the overflowing regime is up to several hundred
times brighter in the optical bands. Surveys such as PanSTARRS or LSST may discover
the periodic variability of this population of binaries. Our results imply that
the circumbinary disks around SMBHs can extend to small radii during the last
stages of their merger, when they are detectable by LISA, and may produce coincident
electromagnetic (EM) emission similar to active galactic nuclei (AGN).
alternative_title:
- 'Overflow and migration: SMBH binaries'
article_processing_charge: No
article_type: original
author:
- first_name: Bence
full_name: Kocsis, Bence
last_name: Kocsis
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
- first_name: Abraham
full_name: Loeb, Abraham
last_name: Loeb
citation:
ama: 'Kocsis B, Haiman Z, Loeb A. Gas pile-up, gap overflow and Type 1.5 migration
in circumbinary discs: Application to supermassive black hole binaries. Monthly
Notices of the Royal Astronomical Society. 2012;427(3):2680-2700. doi:10.1111/j.1365-2966.2012.22118.x'
apa: 'Kocsis, B., Haiman, Z., & Loeb, A. (2012). Gas pile-up, gap overflow and
Type 1.5 migration in circumbinary discs: Application to supermassive black hole
binaries. Monthly Notices of the Royal Astronomical Society. Oxford University
Press. https://doi.org/10.1111/j.1365-2966.2012.22118.x'
chicago: 'Kocsis, Bence, Zoltán Haiman, and Abraham Loeb. “Gas Pile-up, Gap Overflow
and Type 1.5 Migration in Circumbinary Discs: Application to Supermassive Black
Hole Binaries.” Monthly Notices of the Royal Astronomical Society. Oxford
University Press, 2012. https://doi.org/10.1111/j.1365-2966.2012.22118.x.'
ieee: 'B. Kocsis, Z. Haiman, and A. Loeb, “Gas pile-up, gap overflow and Type 1.5
migration in circumbinary discs: Application to supermassive black hole binaries,”
Monthly Notices of the Royal Astronomical Society, vol. 427, no. 3. Oxford
University Press, pp. 2680–2700, 2012.'
ista: 'Kocsis B, Haiman Z, Loeb A. 2012. Gas pile-up, gap overflow and Type 1.5
migration in circumbinary discs: Application to supermassive black hole binaries.
Monthly Notices of the Royal Astronomical Society. 427(3), 2680–2700.'
mla: 'Kocsis, Bence, et al. “Gas Pile-up, Gap Overflow and Type 1.5 Migration in
Circumbinary Discs: Application to Supermassive Black Hole Binaries.” Monthly
Notices of the Royal Astronomical Society, vol. 427, no. 3, Oxford University
Press, 2012, pp. 2680–700, doi:10.1111/j.1365-2966.2012.22118.x.'
short: B. Kocsis, Z. Haiman, A. Loeb, Monthly Notices of the Royal Astronomical
Society 427 (2012) 2680–2700.
date_created: 2024-09-05T13:28:17Z
date_published: 2012-12-11T00:00:00Z
date_updated: 2024-09-24T07:40:02Z
day: '11'
doi: 10.1111/j.1365-2966.2012.22118.x
extern: '1'
intvolume: ' 427'
issue: '3'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1111/j.1365-2966.2012.22118.x
month: '12'
oa: 1
oa_version: Published Version
page: 2680-2700
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
issn:
- 0035-8711
- 1365-2966
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Gas pile-up, gap overflow and Type 1.5 migration in circumbinary discs: Application
to supermassive black hole binaries'
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 427
year: '2012'
...
---
_id: '17651'
abstract:
- lang: eng
text: 'A decade after their first discovery, the origin of giant supermassive black
holes (SMBHs), with masses in excess of 109 Msolar, at redshifts as early as z
> 6, remains a puzzle. One possibility is that stellar-mass ``seed'''' BHs, left
behind by the first stars, accrete gas at close to the Eddington limit during
a large fraction (>~ 50%) of the time. While maintaining such a high accretion
rate may itself be difficult, here we focus on another, less commonly discussed
problem in this scenario: unless BH seed formation and growth are preferentially
suppressed in less massive protogalaxies, the mass density in M~106Msolar SMBHs
at z ~ 6 already exceeds the locally observed SMBH mass density by several orders
of magnitude. We show that the X-rays from the earliest accreting BHs themselves
can cause a self-regulation, by partially ionizing and heating the intergalactic
medium (IGM). This ``global warming'''' suppresses the formation and growth of
subsequent generations of BHs in low-mass halos, and can produce excellent agreement
with recent estimates of the z = 6 SMBH mass function, without impeding the growth
of the largest (M>~109Msolar) holes, which reside in the most massive galaxies
that formed first. The proposed gravitational-wave observatory eLISA could detect
several tens of major mergers between SMBHs at z > 6.'
article_processing_charge: No
author:
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
- first_name: Takamitsu
full_name: Tanaka, Takamitsu
last_name: Tanaka
- first_name: Rosalba
full_name: Perna, Rosalba
last_name: Perna
citation:
ama: 'Haiman Z, Tanaka T, Perna R. Self-regulating the early growth of black holes
through global warming. In: AIP Conference Proceedings. Vol 1480. American
Institute of Physics; 2012:303-308. doi:10.1063/1.4754372'
apa: 'Haiman, Z., Tanaka, T., & Perna, R. (2012). Self-regulating the early
growth of black holes through global warming. In AIP Conference Proceedings
(Vol. 1480, pp. 303–308). Kyoto, Japan: American Institute of Physics. https://doi.org/10.1063/1.4754372'
chicago: Haiman, Zoltán, Takamitsu Tanaka, and Rosalba Perna. “Self-Regulating the
Early Growth of Black Holes through Global Warming.” In AIP Conference Proceedings,
1480:303–8. American Institute of Physics, 2012. https://doi.org/10.1063/1.4754372.
ieee: Z. Haiman, T. Tanaka, and R. Perna, “Self-regulating the early growth of black
holes through global warming,” in AIP Conference Proceedings, Kyoto, Japan,
2012, vol. 1480, pp. 303–308.
ista: Haiman Z, Tanaka T, Perna R. 2012. Self-regulating the early growth of black
holes through global warming. AIP Conference Proceedings. FIRST STARS IV - From
Hayashi to the Future vol. 1480, 303–308.
mla: Haiman, Zoltán, et al. “Self-Regulating the Early Growth of Black Holes through
Global Warming.” AIP Conference Proceedings, vol. 1480, American Institute
of Physics, 2012, pp. 303–08, doi:10.1063/1.4754372.
short: Z. Haiman, T. Tanaka, R. Perna, in:, AIP Conference Proceedings, American
Institute of Physics, 2012, pp. 303–308.
conference:
end_date: 2012-05-25
location: Kyoto, Japan
name: FIRST STARS IV - From Hayashi to the Future
start_date: 2012-05-21
date_created: 2024-09-06T07:29:59Z
date_published: 2012-09-12T00:00:00Z
date_updated: 2024-09-24T13:16:41Z
day: '12'
doi: 10.1063/1.4754372
extern: '1'
intvolume: ' 1480'
language:
- iso: eng
main_file_link:
- url: https://doi.org/10.1063/1.4754372
month: '09'
oa_version: None
page: 303-308
publication: AIP Conference Proceedings
publication_identifier:
issn:
- 0094-243X
publication_status: published
publisher: American Institute of Physics
quality_controlled: '1'
scopus_import: '1'
status: public
title: Self-regulating the early growth of black holes through global warming
type: conference
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 1480
year: '2012'
...
---
_id: '17678'
abstract:
- lang: eng
text: 'The spectra of several high-redshift (z>6) quasars have shown evidence for
a Gunn-Peterson (GP) damping wing, indicating a substantial mean neutral hydrogen
fraction (x_HI > 0.03) in the z ~ 6 intergalactic medium (IGM). However, previous
analyses assumed that the IGM was uniformly ionized outside of the quasar''s HII
region. Here we relax this assumption and model patchy reionization scenarios
for a range of IGM and quasar parameters. We quantify the impact of these differences
on the inferred x_HI, by fitting the spectra of three quasars: SDSS J1148+5251
(z=6.419), J1030+0524 (z=6.308), and J1623+3112 (z=6.247). We find that the best-fit
values of x_HI in the patchy models agree well with the uniform case. More importantly,
we confirm that the observed spectra favor the presence of a GP damping wing,
with peak likelihoods decreasing by factors of > few - 10 when the spectra are
modeled without a damping wing. We also find that the Ly alpha absorption spectra,
by themselves, cannot distinguish the damping wing in a relatively neutral IGM
from a damping wing in a highly ionized IGM, caused either by an isolated neutral
patch, or by a damped Ly alpha absorber (DLA). However, neutral patches in a highly
ionized universe (x_HI < 0.01), and DLAs with the large required column densities
(N_HI > few x 10^{20} cm^{-2}) are both rare. As a result, when we include reasonable
prior probabilities for the line of sight (LOS) to intercept either a neutral
patch or a DLA at the required distance of ~ 40-60 comoving Mpc away from the
quasar, we find strong lower limits on the neutral fraction in the IGM, x_HI >
0.1 (at 95% confidence). This strengthens earlier claims that a substantial global
fraction of hydrogen in the z~6 IGM is in neutral form.'
article_processing_charge: No
article_type: original
author:
- first_name: Joshua
full_name: Schroeder, Joshua
last_name: Schroeder
- first_name: Andrei
full_name: Mesinger, Andrei
last_name: Mesinger
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
citation:
ama: 'Schroeder J, Mesinger A, Haiman Z. Evidence of Gunn–Peterson damping wings
in high-z quasar spectra: Strengthening the case for incomplete reionization at
z ∼ 6–7. Monthly Notices of the Royal Astronomical Society. 2012;428(4):3058-3071.
doi:10.1093/mnras/sts253'
apa: 'Schroeder, J., Mesinger, A., & Haiman, Z. (2012). Evidence of Gunn–Peterson
damping wings in high-z quasar spectra: Strengthening the case for incomplete
reionization at z ∼ 6–7. Monthly Notices of the Royal Astronomical Society.
Oxford University Press. https://doi.org/10.1093/mnras/sts253'
chicago: 'Schroeder, Joshua, Andrei Mesinger, and Zoltán Haiman. “Evidence of Gunn–Peterson
Damping Wings in High-z Quasar Spectra: Strengthening the Case for Incomplete
Reionization at z ∼ 6–7.” Monthly Notices of the Royal Astronomical Society.
Oxford University Press, 2012. https://doi.org/10.1093/mnras/sts253.'
ieee: 'J. Schroeder, A. Mesinger, and Z. Haiman, “Evidence of Gunn–Peterson damping
wings in high-z quasar spectra: Strengthening the case for incomplete reionization
at z ∼ 6–7,” Monthly Notices of the Royal Astronomical Society, vol. 428,
no. 4. Oxford University Press, pp. 3058–3071, 2012.'
ista: 'Schroeder J, Mesinger A, Haiman Z. 2012. Evidence of Gunn–Peterson damping
wings in high-z quasar spectra: Strengthening the case for incomplete reionization
at z ∼ 6–7. Monthly Notices of the Royal Astronomical Society. 428(4), 3058–3071.'
mla: 'Schroeder, Joshua, et al. “Evidence of Gunn–Peterson Damping Wings in High-z
Quasar Spectra: Strengthening the Case for Incomplete Reionization at z ∼ 6–7.”
Monthly Notices of the Royal Astronomical Society, vol. 428, no. 4, Oxford
University Press, 2012, pp. 3058–71, doi:10.1093/mnras/sts253.'
short: J. Schroeder, A. Mesinger, Z. Haiman, Monthly Notices of the Royal Astronomical
Society 428 (2012) 3058–3071.
date_created: 2024-09-06T08:04:35Z
date_published: 2012-11-22T00:00:00Z
date_updated: 2024-09-25T08:53:21Z
day: '22'
doi: 10.1093/mnras/sts253
extern: '1'
intvolume: ' 428'
issue: '4'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1093/mnras/sts253
month: '11'
oa: 1
oa_version: Published Version
page: 3058-3071
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
issn:
- 0035-8711
- 1365-2966
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Evidence of Gunn–Peterson damping wings in high-z quasar spectra: Strengthening
the case for incomplete reionization at z ∼ 6–7'
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 428
year: '2012'
...
---
_id: '17705'
abstract:
- lang: eng
text: Observations of high-redshift quasars at z>6 imply that supermassive black
holes (SMBHs) with masses over a billion solar masses were in place less than
1 Gyr after the Big Bang. If these SMBHs assembled from "seed" BHs left behind
by the first stars, then they must have accreted gas at close to the Eddington
limit during a large fraction (>50%) of the time. A generic problem with this
scenario, however, is that the mass density in million-solar-mass SMBHs at z=6
already exceeds the locally observed SMBH mass density by several orders of magnitude;
in order to avoid this overproduction, BH seed formation and growth must become
significantly less efficient in less massive protogalaxies, while proceeding uninterrupted
in the most massive galaxies that formed first. Using Monte-Carlo realizations
of the merger and growth history of BHs, we show that X-rays from the earliest
accreting BHs can provide such a feedback mechanism. Our calculations paint a
self-consistent picture of black-hole-made climate change, in which the first
miniquasars---among them the ancestors of the z>6 quasar SMBHs---globally warm
the IGM and suppress the formation and growth of subsequent generations of BHs.
We present two specific models with global miniquasar feedback that provide excellent
agreement with recent estimates of the z=6 SMBH mass function. For each of these
models, we estimate the rate of BH mergers at z>6 that could be detected by the
proposed gravitational-wave observatory eLISA/NGO.
alternative_title:
- IGM global warming by high-redshift miniquasars
article_processing_charge: No
article_type: original
author:
- first_name: Takamitsu
full_name: Tanaka, Takamitsu
last_name: Tanaka
- first_name: Rosalba
full_name: Perna, Rosalba
last_name: Perna
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
citation:
ama: 'Tanaka T, Perna R, Haiman Z. X-ray emission from high-redshift miniquasars:
Self-regulating the population of massive black holes through global warming.
Monthly Notices of the Royal Astronomical Society. 2012;425(4):2974-2987.
doi:10.1111/j.1365-2966.2012.21539.x'
apa: 'Tanaka, T., Perna, R., & Haiman, Z. (2012). X-ray emission from high-redshift
miniquasars: Self-regulating the population of massive black holes through global
warming. Monthly Notices of the Royal Astronomical Society. Oxford University
Press. https://doi.org/10.1111/j.1365-2966.2012.21539.x'
chicago: 'Tanaka, Takamitsu, Rosalba Perna, and Zoltán Haiman. “X-Ray Emission from
High-Redshift Miniquasars: Self-Regulating the Population of Massive Black Holes
through Global Warming.” Monthly Notices of the Royal Astronomical Society.
Oxford University Press, 2012. https://doi.org/10.1111/j.1365-2966.2012.21539.x.'
ieee: 'T. Tanaka, R. Perna, and Z. Haiman, “X-ray emission from high-redshift miniquasars:
Self-regulating the population of massive black holes through global warming,”
Monthly Notices of the Royal Astronomical Society, vol. 425, no. 4. Oxford
University Press, pp. 2974–2987, 2012.'
ista: 'Tanaka T, Perna R, Haiman Z. 2012. X-ray emission from high-redshift miniquasars:
Self-regulating the population of massive black holes through global warming.
Monthly Notices of the Royal Astronomical Society. 425(4), 2974–2987.'
mla: 'Tanaka, Takamitsu, et al. “X-Ray Emission from High-Redshift Miniquasars:
Self-Regulating the Population of Massive Black Holes through Global Warming.”
Monthly Notices of the Royal Astronomical Society, vol. 425, no. 4, Oxford
University Press, 2012, pp. 2974–87, doi:10.1111/j.1365-2966.2012.21539.x.'
short: T. Tanaka, R. Perna, Z. Haiman, Monthly Notices of the Royal Astronomical
Society 425 (2012) 2974–2987.
date_created: 2024-09-06T08:50:56Z
date_published: 2012-10-01T00:00:00Z
date_updated: 2024-09-25T11:40:30Z
day: '01'
doi: 10.1111/j.1365-2966.2012.21539.x
extern: '1'
intvolume: ' 425'
issue: '4'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1111/j.1365-2966.2012.21539.x
month: '10'
oa: 1
oa_version: Published Version
page: 2974-2987
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
issn:
- 0035-8711
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'X-ray emission from high-redshift miniquasars: Self-regulating the population
of massive black holes through global warming'
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 425
year: '2012'
...
---
_id: '493'
abstract:
- lang: eng
text: 'The BCI competition IV stands in the tradition of prior BCI competitions
that aim to provide high quality neuroscientific data for open access to the scientific
community. As experienced already in prior competitions not only scientists from
the narrow field of BCI compete, but scholars with a broad variety of backgrounds
and nationalities. They include high specialists as well as students.The goals
of all BCI competitions have always been to challenge with respect to novel paradigms
and complex data. We report on the following challenges: (1) asynchronous data,
(2) synthetic, (3) multi-class continuous data, (4) sessionto-session transfer,
(5) directionally modulated MEG, (6) finger movements recorded by ECoG. As after
past competitions, our hope is that winning entries may enhance the analysis methods
of future BCIs.'
acknowledgement: "The studies were in part or completely supported by the Bundesministerium
für Bildung und Forschung (BMBF), Fkz 01IB001A, 01GQ0850, by the German Science
Foundation (DFG, contract MU 987/3-2), by the European ICT Programme Projects FP7-224631
and 216886, the World Class University Program through the National Research Foundation
of Korea funded by the Ministry of Education, Science, and Technology (Grant R31-10008),
the US Army Research Office [W911NF-08-1-0216 (Gerwin Schalk) and W911NF-07-1-0415
(Gerwin Schalk)] and the NIH [EB006356 (Gerwin Schalk) and EB000856 (Gerwin Schalk),
the WIN-Kolleg of the Heidelberg Academy of Sciences and Humanities, German Federal
Ministry of Education and Research grants 01GQ0420, 01GQ0761, 01GQ0762, and 01GQ0830,
German Research Foundation grants 550/B5 and C6, and by a scholarship from the German
National Academic Foundation. This paper only reflects the authors’ views and funding
agencies are not liable for any use that may be made of the information contained
herein.\r\n"
article_number: '55'
article_processing_charge: No
author:
- first_name: Michael
full_name: Tangermann, Michael
last_name: Tangermann
- first_name: Klaus
full_name: Müller, Klaus
last_name: Müller
- first_name: Ad
full_name: Aertsen, Ad
last_name: Aertsen
- first_name: Niels
full_name: Birbaumer, Niels
last_name: Birbaumer
- first_name: Christoph
full_name: Braun, Christoph
last_name: Braun
- first_name: Clemens
full_name: Brunner, Clemens
last_name: Brunner
- first_name: Robert
full_name: Leeb, Robert
last_name: Leeb
- first_name: Carsten
full_name: Mehring, Carsten
last_name: Mehring
- first_name: Kai
full_name: Miller, Kai
last_name: Miller
- first_name: Gernot
full_name: Müller Putz, Gernot
last_name: Müller Putz
- first_name: Guido
full_name: Nolte, Guido
last_name: Nolte
- first_name: Gert
full_name: Pfurtscheller, Gert
last_name: Pfurtscheller
- first_name: Hubert
full_name: Preissl, Hubert
last_name: Preissl
- first_name: Gerwin
full_name: Schalk, Gerwin
last_name: Schalk
- first_name: Alois
full_name: Schlögl, Alois
id: 45BF87EE-F248-11E8-B48F-1D18A9856A87
last_name: Schlögl
orcid: 0000-0002-5621-8100
- first_name: Carmen
full_name: Vidaurre, Carmen
last_name: Vidaurre
- first_name: Stephan
full_name: Waldert, Stephan
last_name: Waldert
- first_name: Benjamin
full_name: Blankertz, Benjamin
last_name: Blankertz
citation:
ama: Tangermann M, Müller K, Aertsen A, et al. Review of the BCI competition IV.
Frontiers in Neuroscience. 2012;6. doi:10.3389/fnins.2012.00055
apa: Tangermann, M., Müller, K., Aertsen, A., Birbaumer, N., Braun, C., Brunner,
C., … Blankertz, B. (2012). Review of the BCI competition IV. Frontiers in
Neuroscience. Frontiers Research Foundation. https://doi.org/10.3389/fnins.2012.00055
chicago: Tangermann, Michael, Klaus Müller, Ad Aertsen, Niels Birbaumer, Christoph
Braun, Clemens Brunner, Robert Leeb, et al. “Review of the BCI Competition IV.”
Frontiers in Neuroscience. Frontiers Research Foundation, 2012. https://doi.org/10.3389/fnins.2012.00055.
ieee: M. Tangermann et al., “Review of the BCI competition IV,” Frontiers
in Neuroscience, vol. 6. Frontiers Research Foundation, 2012.
ista: Tangermann M, Müller K, Aertsen A, Birbaumer N, Braun C, Brunner C, Leeb R,
Mehring C, Miller K, Müller Putz G, Nolte G, Pfurtscheller G, Preissl H, Schalk
G, Schlögl A, Vidaurre C, Waldert S, Blankertz B. 2012. Review of the BCI competition
IV. Frontiers in Neuroscience. 6, 55.
mla: Tangermann, Michael, et al. “Review of the BCI Competition IV.” Frontiers
in Neuroscience, vol. 6, 55, Frontiers Research Foundation, 2012, doi:10.3389/fnins.2012.00055.
short: M. Tangermann, K. Müller, A. Aertsen, N. Birbaumer, C. Braun, C. Brunner,
R. Leeb, C. Mehring, K. Miller, G. Müller Putz, G. Nolte, G. Pfurtscheller, H.
Preissl, G. Schalk, A. Schlögl, C. Vidaurre, S. Waldert, B. Blankertz, Frontiers
in Neuroscience 6 (2012).
date_created: 2018-12-11T11:46:46Z
date_published: 2012-07-13T00:00:00Z
date_updated: 2025-09-30T08:35:59Z
day: '13'
ddc:
- '004'
department:
- _id: ScienComp
- _id: PeJo
doi: 10.3389/fnins.2012.00055
external_id:
isi:
- '000209165300066'
file:
- access_level: open_access
checksum: 195238221c4b0b0f4035f6f6c16ea17c
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:18:34Z
date_updated: 2020-07-14T12:46:35Z
file_id: '5356'
file_name: IST-2018-945-v1+1_2012_Schloegl_Review_of.pdf
file_size: 2693701
relation: main_file
file_date_updated: 2020-07-14T12:46:35Z
has_accepted_license: '1'
intvolume: ' 6'
isi: 1
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
publication: Frontiers in Neuroscience
publication_status: published
publisher: Frontiers Research Foundation
publist_id: '7327'
pubrep_id: '945'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Review of the BCI competition IV
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 6
year: '2012'
...
---
_id: '497'
abstract:
- lang: eng
text: 'One central issue in the formal design and analysis of reactive systems is
the notion of refinement that asks whether all behaviors of the implementation
is allowed by the specification. The local interpretation of behavior leads to
the notion of simulation. Alternating transition systems (ATSs) provide a general
model for composite reactive systems, and the simulation relation for ATSs is
known as alternating simulation. The simulation relation for fair transition systems
is called fair simulation. In this work our main contributions are as follows:
(1) We present an improved algorithm for fair simulation with Büchi fairness constraints;
our algorithm requires O(n 3·m) time as compared to the previous known O(n 6)-time
algorithm, where n is the number of states and m is the number of transitions.
(2) We present a game based algorithm for alternating simulation that requires
O(m2)-time as compared to the previous known O((n·m)2)-time algorithm, where n
is the number of states and m is the size of transition relation. (3) We present
an iterative algorithm for alternating simulation that matches the time complexity
of the game based algorithm, but is more space efficient than the game based algorithm.
© Krishnendu Chatterjee, Siddhesh Chaubal, and Pritish Kamath.'
alternative_title:
- LIPIcs
author:
- first_name: Krishnendu
full_name: Chatterjee, Krishnendu
id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
last_name: Chatterjee
orcid: 0000-0002-4561-241X
- first_name: Siddhesh
full_name: Chaubal, Siddhesh
last_name: Chaubal
- first_name: Pritish
full_name: Kamath, Pritish
last_name: Kamath
citation:
ama: 'Chatterjee K, Chaubal S, Kamath P. Faster algorithms for alternating refinement
relations. In: Vol 16. Schloss Dagstuhl - Leibniz-Zentrum für Informatik; 2012:167-182.
doi:10.4230/LIPIcs.CSL.2012.167'
apa: 'Chatterjee, K., Chaubal, S., & Kamath, P. (2012). Faster algorithms for
alternating refinement relations (Vol. 16, pp. 167–182). Presented at the EACSL:
European Association for Computer Science Logic, Fontainebleau, France: Schloss
Dagstuhl - Leibniz-Zentrum für Informatik. https://doi.org/10.4230/LIPIcs.CSL.2012.167'
chicago: Chatterjee, Krishnendu, Siddhesh Chaubal, and Pritish Kamath. “Faster Algorithms
for Alternating Refinement Relations,” 16:167–82. Schloss Dagstuhl - Leibniz-Zentrum
für Informatik, 2012. https://doi.org/10.4230/LIPIcs.CSL.2012.167.
ieee: 'K. Chatterjee, S. Chaubal, and P. Kamath, “Faster algorithms for alternating
refinement relations,” presented at the EACSL: European Association for Computer
Science Logic, Fontainebleau, France, 2012, vol. 16, pp. 167–182.'
ista: 'Chatterjee K, Chaubal S, Kamath P. 2012. Faster algorithms for alternating
refinement relations. EACSL: European Association for Computer Science Logic,
LIPIcs, vol. 16, 167–182.'
mla: Chatterjee, Krishnendu, et al. Faster Algorithms for Alternating Refinement
Relations. Vol. 16, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2012,
pp. 167–82, doi:10.4230/LIPIcs.CSL.2012.167.
short: K. Chatterjee, S. Chaubal, P. Kamath, in:, Schloss Dagstuhl - Leibniz-Zentrum
für Informatik, 2012, pp. 167–182.
conference:
end_date: 2012-09-06
location: Fontainebleau, France
name: 'EACSL: European Association for Computer Science Logic'
start_date: 2012-09-03
date_created: 2018-12-11T11:46:48Z
date_published: 2012-09-01T00:00:00Z
date_updated: 2025-01-14T12:24:50Z
day: '01'
ddc:
- '004'
department:
- _id: KrCh
doi: 10.4230/LIPIcs.CSL.2012.167
ec_funded: 1
file:
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checksum: f1b0dd99240800db2d7dbf9b5131fe5e
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creator: system
date_created: 2018-12-12T10:08:50Z
date_updated: 2020-07-14T12:46:35Z
file_id: '4712'
file_name: IST-2018-943-v1+1_2012_Chatterjee_Faster_Algorithms.pdf
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file_date_updated: 2020-07-14T12:46:35Z
has_accepted_license: '1'
intvolume: ' 16'
language:
- iso: eng
license: https://creativecommons.org/licenses/by-nc-nd/4.0/
month: '09'
oa: 1
oa_version: Published Version
page: 167 - 182
project:
- _id: 2584A770-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: P 23499-N23
name: Modern Graph Algorithmic Techniques in Formal Verification
- _id: 25832EC2-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: S 11407_N23
name: Rigorous Systems Engineering
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call_identifier: FP7
grant_number: '279307'
name: 'Quantitative Graph Games: Theory and Applications'
- _id: 2587B514-B435-11E9-9278-68D0E5697425
name: Microsoft Research Faculty Fellowship
publication_status: published
publisher: Schloss Dagstuhl - Leibniz-Zentrum für Informatik
publist_id: '7323'
pubrep_id: '943'
quality_controlled: '1'
related_material:
record:
- id: '5378'
relation: earlier_version
status: public
scopus_import: 1
status: public
title: Faster algorithms for alternating refinement relations
tmp:
image: /images/cc_by_nc_nd.png
legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode
name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
(CC BY-NC-ND 4.0)
short: CC BY-NC-ND (4.0)
type: conference
user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87
volume: 16
year: '2012'
...
---
_id: '7074'
abstract:
- lang: eng
text: The Seebeck coefficients, electrical resistivities, total thermal conductivities,
and magnetization are reported for temperatures between 5 and 350 K for n-type
Bi0.88Sb0.12 nano-composite alloys made by Ho-doping at the 0, 1, and 3 % atomic
levels. The alloys were prepared using a dc hot-pressing method, and are shown
to be single phase for both Ho contents with grain sizes on the average of 900
nm. We find the parent compound has a maximum of ZT = 0.28 at 231 K, while doping
1 % Ho increases the maximum ZT to 0.31 at 221 K and the 3 % doped sample suppresses
the maximum ZT = 0.24 at a temperature of 260 K.
article_processing_charge: No
article_type: original
author:
- first_name: K. C.
full_name: Lukas, K. C.
last_name: Lukas
- first_name: G.
full_name: Joshi, G.
last_name: Joshi
- first_name: Kimberly A
full_name: Modic, Kimberly A
id: 13C26AC0-EB69-11E9-87C6-5F3BE6697425
last_name: Modic
orcid: 0000-0001-9760-3147
- first_name: Z. F.
full_name: Ren, Z. F.
last_name: Ren
- first_name: C. P.
full_name: Opeil, C. P.
last_name: Opeil
citation:
ama: Lukas KC, Joshi G, Modic KA, Ren ZF, Opeil CP. Thermoelectric properties of
Ho-doped Bi0.88Sb0.12. Journal of Materials Science. 2012;47(15):5729-5734.
doi:10.1007/s10853-012-6463-6
apa: Lukas, K. C., Joshi, G., Modic, K. A., Ren, Z. F., & Opeil, C. P. (2012).
Thermoelectric properties of Ho-doped Bi0.88Sb0.12. Journal of Materials Science.
Springer Nature. https://doi.org/10.1007/s10853-012-6463-6
chicago: Lukas, K. C., G. Joshi, Kimberly A Modic, Z. F. Ren, and C. P. Opeil. “Thermoelectric
Properties of Ho-Doped Bi0.88Sb0.12.” Journal of Materials Science. Springer
Nature, 2012. https://doi.org/10.1007/s10853-012-6463-6.
ieee: K. C. Lukas, G. Joshi, K. A. Modic, Z. F. Ren, and C. P. Opeil, “Thermoelectric
properties of Ho-doped Bi0.88Sb0.12,” Journal of Materials Science, vol.
47, no. 15. Springer Nature, pp. 5729–5734, 2012.
ista: Lukas KC, Joshi G, Modic KA, Ren ZF, Opeil CP. 2012. Thermoelectric properties
of Ho-doped Bi0.88Sb0.12. Journal of Materials Science. 47(15), 5729–5734.
mla: Lukas, K. C., et al. “Thermoelectric Properties of Ho-Doped Bi0.88Sb0.12.”
Journal of Materials Science, vol. 47, no. 15, Springer Nature, 2012, pp.
5729–34, doi:10.1007/s10853-012-6463-6.
short: K.C. Lukas, G. Joshi, K.A. Modic, Z.F. Ren, C.P. Opeil, Journal of Materials
Science 47 (2012) 5729–5734.
date_created: 2019-11-19T13:36:54Z
date_published: 2012-08-01T00:00:00Z
date_updated: 2021-01-12T08:11:43Z
day: '01'
doi: 10.1007/s10853-012-6463-6
extern: '1'
intvolume: ' 47'
issue: '15'
language:
- iso: eng
month: '08'
oa_version: None
page: 5729-5734
publication: Journal of Materials Science
publication_identifier:
eissn:
- 1573-4803
issn:
- 0022-2461
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
status: public
title: Thermoelectric properties of Ho-doped Bi0.88Sb0.12
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 47
year: '2012'
...
---
_id: '764'
abstract:
- lang: eng
text: Set agreement is a fundamental problem in distributed computing in which processes
collectively choose a small subset of values from a larger set of proposals. The
impossibility of fault-tolerant set agreement in asynchronous networks is one
of the seminal results in distributed computing. In synchronous networks, too,
the complexity of set agreement has been a significant research challenge that
has now been resolved. Real systems, however, are neither purely synchronous nor
purely asynchronous. Rather, they tend to alternate between periods of synchrony
and periods of asynchrony. Nothing specific is known about the complexity of set
agreement in such a "partially synchronous" setting. In this paper,
we address this challenge, presenting the first (asymptotically) tight bound on
the complexity of set agreement in such systems. We introduce a novel technique
for simulating, in a fault-prone asynchronous shared memory, executions of an
asynchronous and failure-prone message-passing system in which some fragments
appear synchronous to some processes. We use this simulation technique to derive
a lower bound on the round complexity of set agreement in a partially synchronous
system by a reduction from asynchronous wait-free set agreement. Specifically,
we show that every set agreement protocol requires at least $\lfloor\frac t k
\rfloor + 2$ synchronous rounds to decide. We present an (asymptotically) matching
algorithm that relies on a distributed asynchrony detection mechanism to decide
as soon as possible during periods of synchrony. From these two results, we derive
the size of the minimal window of synchrony needed to solve set agreement. By
relating synchronous, asynchronous and partially synchronous environments, our
simulation technique is of independent interest. In particular, it allows us to
obtain a new lower bound on the complexity of early deciding k-set agreement complementary
to that of Gafni et al. (in SIAM J. Comput. 40(1):63-78, 2011), and to re-derive
the combinatorial topology lower bound of Guerraoui et al. (in Theor. Comput.
Sci. 410(6-7):570-580, 2009) in an algorithmic way.
acknowledgement: "We would like to thank Hagit Attiya, Keren Censor-Hillel, and
the anonymous\r\nreviewers for their feedback on drafts of this paper.\r\nPart
of the work was performed as C. Travers was a Post-Doctoral Fellow at the Technion,
Haifa,\r\nsupported by the “Sam & Cecilia Neaman” Fellowship. Part of the work was
performed as S. Gilbert was\r\na Post-Doctoral Fellow at the Swiss Federal Institute
of Technology, Lausanne, Switzerland."
article_processing_charge: No
author:
- first_name: Dan-Adrian
full_name: Alistarh, Dan-Adrian
id: 4A899BFC-F248-11E8-B48F-1D18A9856A87
last_name: Alistarh
orcid: 0000-0003-3650-940X
- first_name: Seth
full_name: Gilbert, Seth
last_name: Gilbert
- first_name: Rachid
full_name: Guerraoui, Rachid
last_name: Guerraoui
- first_name: Corentin
full_name: Travers, Corentin
last_name: Travers
citation:
ama: 'Alistarh D-A, Gilbert S, Guerraoui R, Travers C. Of choices, failures and
asynchrony: the many faces of set agreement. Algorithmica (New York). 2012;62(1-2):595-629.
doi:10.1007/s00453-011-9581-7'
apa: 'Alistarh, D.-A., Gilbert, S., Guerraoui, R., & Travers, C. (2012). Of
choices, failures and asynchrony: the many faces of set agreement. Algorithmica
(New York). Springer. https://doi.org/10.1007/s00453-011-9581-7'
chicago: 'Alistarh, Dan-Adrian, Seth Gilbert, Rachid Guerraoui, and Corentin Travers.
“Of Choices, Failures and Asynchrony: The Many Faces of Set Agreement.” Algorithmica
(New York). Springer, 2012. https://doi.org/10.1007/s00453-011-9581-7.'
ieee: 'D.-A. Alistarh, S. Gilbert, R. Guerraoui, and C. Travers, “Of choices, failures
and asynchrony: the many faces of set agreement,” Algorithmica (New York),
vol. 62, no. 1–2. Springer, pp. 595–629, 2012.'
ista: 'Alistarh D-A, Gilbert S, Guerraoui R, Travers C. 2012. Of choices, failures
and asynchrony: the many faces of set agreement. Algorithmica (New York). 62(1–2),
595–629.'
mla: 'Alistarh, Dan-Adrian, et al. “Of Choices, Failures and Asynchrony: The Many
Faces of Set Agreement.” Algorithmica (New York), vol. 62, no. 1–2, Springer,
2012, pp. 595–629, doi:10.1007/s00453-011-9581-7.'
short: D.-A. Alistarh, S. Gilbert, R. Guerraoui, C. Travers, Algorithmica (New York)
62 (2012) 595–629.
date_created: 2018-12-11T11:48:23Z
date_published: 2012-02-01T00:00:00Z
date_updated: 2023-02-23T13:13:02Z
day: '01'
doi: 10.1007/s00453-011-9581-7
extern: '1'
intvolume: ' 62'
issue: 1-2
language:
- iso: eng
month: '02'
oa_version: None
page: 595 - 629
publication: Algorithmica (New York)
publication_status: published
publisher: Springer
publist_id: '6894'
status: public
title: 'Of choices, failures and asynchrony: the many faces of set agreement'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 62
year: '2012'
...