---
_id: '2423'
abstract:
- lang: eng
text: A finite set N ⊃ Rd is a weak ε-net for an n-point set X ⊃ Rd (with respect
to convex sets) if N intersects every convex set K with |K ∩ X| ≥ εn. We give
an alternative, and arguably simpler, proof of the fact, first shown by Chazelle
et al. [7], that every point set X in Rd admits a weak ε-net of cardinality O(ε-d
polylog(1/ε)). Moreover, for a number of special point sets (e.g., for points
on the moment curve), our method gives substantially better bounds. The construction
yields an algorithm to construct such weak ε-nets in time O(n ln(1/ε)). We also
prove, by a different method, a near-linear upper bound for points uniformly distributed
on the (d - 1)-dimensional sphere.
author:
- first_name: Jiří
full_name: Matoušek, Jiří
last_name: Matoušek
- first_name: Uli
full_name: Uli Wagner
id: 36690CA2-F248-11E8-B48F-1D18A9856A87
last_name: Wagner
orcid: 0000-0002-1494-0568
citation:
ama: 'Matoušek J, Wagner U. New constructions of weak epsilon-nets. In: ACM; 2003:129-135.
doi:10.1145/777792.777813'
apa: 'Matoušek, J., & Wagner, U. (2003). New constructions of weak epsilon-nets
(pp. 129–135). Presented at the SoCG: Symposium on Computational Geometry, ACM.
https://doi.org/10.1145/777792.777813'
chicago: Matoušek, Jiří, and Uli Wagner. “New Constructions of Weak Epsilon-Nets,”
129–35. ACM, 2003. https://doi.org/10.1145/777792.777813.
ieee: 'J. Matoušek and U. Wagner, “New constructions of weak epsilon-nets,” presented
at the SoCG: Symposium on Computational Geometry, 2003, pp. 129–135.'
ista: 'Matoušek J, Wagner U. 2003. New constructions of weak epsilon-nets. SoCG:
Symposium on Computational Geometry, 129–135.'
mla: Matoušek, Jiří, and Uli Wagner. New Constructions of Weak Epsilon-Nets.
ACM, 2003, pp. 129–35, doi:10.1145/777792.777813.
short: J. Matoušek, U. Wagner, in:, ACM, 2003, pp. 129–135.
conference:
name: 'SoCG: Symposium on Computational Geometry'
date_created: 2018-12-11T11:57:34Z
date_published: 2003-06-01T00:00:00Z
date_updated: 2021-01-12T06:57:24Z
day: '01'
doi: 10.1145/777792.777813
extern: 1
month: '06'
page: 129 - 135
publication_status: published
publisher: ACM
publist_id: '4502'
quality_controlled: 0
status: public
title: New constructions of weak epsilon-nets
type: conference
year: '2003'
...
---
_id: '2424'
abstract:
- lang: eng
text: We introduce the adaptive neighborhood graph as a data structure for modeling
a smooth manifold M embedded in some (potentially very high-dimensional) Euclidean
space ℝd. We assume that M is known to us only through a finite sample P ⊂ M,
as it is often the case in applications. The adaptive neighborhood graph is a
geometric graph on P. Its complexity is at most min{2O(k)(n, n2}, where n = |P|
and k = dim M, as opposed to the n⌈d/2⌉ complexity of the Delaunay triangulation,
which is often used to model manifolds. We show that we can provably correctly
infer the connectivity of M and the dimension of M from the adaptive neighborhood
graph provided a certain standard sampling condition is fulfilled. The running
time of the dimension detection algorithm is d2O(k7 log k) for each connected
component of M. If the dimension is considered constant, this is a constant-time
operation, and the adaptive neighborhood graph is of linear size. Moreover, the
exponential dependence of the constants is only on the intrinsic dimension k,
not on the ambient dimension d. This is of particular interest if the co-dimension
is high, i.e., if k is much smaller than d, as is the case in many applications.
The adaptive neighborhood graph also allows us to approximate the geodesic distances
between the points in P.
author:
- first_name: Joachim
full_name: Giesen, Joachim
last_name: Giesen
- first_name: Uli
full_name: Uli Wagner
id: 36690CA2-F248-11E8-B48F-1D18A9856A87
last_name: Wagner
orcid: 0000-0002-1494-0568
citation:
ama: 'Giesen J, Wagner U. Shape dimension and intrinsic metric from samples of manifolds
with high co-dimension. In: ACM; 2003:329-337. doi:10.1145/777792.777841'
apa: 'Giesen, J., & Wagner, U. (2003). Shape dimension and intrinsic metric
from samples of manifolds with high co-dimension (pp. 329–337). Presented at the
SoCG: Symposium on Computational Geometry, ACM. https://doi.org/10.1145/777792.777841'
chicago: Giesen, Joachim, and Uli Wagner. “Shape Dimension and Intrinsic Metric
from Samples of Manifolds with High Co-Dimension,” 329–37. ACM, 2003. https://doi.org/10.1145/777792.777841.
ieee: 'J. Giesen and U. Wagner, “Shape dimension and intrinsic metric from samples
of manifolds with high co-dimension,” presented at the SoCG: Symposium on Computational
Geometry, 2003, pp. 329–337.'
ista: 'Giesen J, Wagner U. 2003. Shape dimension and intrinsic metric from samples
of manifolds with high co-dimension. SoCG: Symposium on Computational Geometry,
329–337.'
mla: Giesen, Joachim, and Uli Wagner. Shape Dimension and Intrinsic Metric from
Samples of Manifolds with High Co-Dimension. ACM, 2003, pp. 329–37, doi:10.1145/777792.777841.
short: J. Giesen, U. Wagner, in:, ACM, 2003, pp. 329–337.
conference:
name: 'SoCG: Symposium on Computational Geometry'
date_created: 2018-12-11T11:57:35Z
date_published: 2003-06-01T00:00:00Z
date_updated: 2021-01-12T06:57:24Z
day: '01'
doi: 10.1145/777792.777841
extern: 1
month: '06'
page: 329 - 337
publication_status: published
publisher: ACM
publist_id: '4501'
quality_controlled: 0
status: public
title: Shape dimension and intrinsic metric from samples of manifolds with high co-dimension
type: conference
year: '2003'
...
---
_id: '4561'
abstract:
- lang: eng
text: 'We present a formalism for specifying component interfaces that expose component
requirements on limited resources. The formalism permits an algorithmic check
if two or more components, when put together, exceed the available resources.
Moreover, the formalism can be used to compute the quantity of resources necessary
for satisfying the requirements of a collection of components. The formalism can
be instantiated in several ways. For example, several components may draw power
from the same source. Then, the formalism supports compatibility checks such as:
can two components, when put together, achieve their tasks without ever exceeding
the available amount of peak power? or, can they achieve their tasks by using
no more than the initially available amount of energy (i.e., power accumulated
over time)? The corresponding quantitative questions that our algorithms answer
are the following: what is the amount of peak power needed for two components
to be put together? what is the corresponding amount of initial energy? To solve
these questions, we model interfaces with resource requirements as games with
quantitative objectives. The games are played on state spaces where each state
is labeled by a number (representing, e.g., power consumption), and a play produces
an infinite path of labels. The objective may be, for example, to minimize the
largest label that occurs during a play. We illustrate our approach by modeling
compatibility questions for the components of robot control software, and of wireless
sensor networks.'
acknowledgement: This research was supported in part by the DARPA grant F33615-00-C-1693,
the MARCO grant 98-DT-660, the ONR grant N00014-02-1-0671, and the NSF grants CCR-0085949,
CCR-0132780, CCR-0234690, and CCR-9988172.
alternative_title:
- LNCS
article_processing_charge: No
author:
- first_name: Arindam
full_name: Chakrabarti, Arindam
last_name: Chakrabarti
- first_name: Luca
full_name: De Alfaro, Luca
last_name: De Alfaro
- 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: Mariëlle
full_name: Stoelinga, Mariëlle
last_name: Stoelinga
citation:
ama: 'Chakrabarti A, De Alfaro L, Henzinger TA, Stoelinga M. Resource interfaces.
In: Third International Conference on Embedded Software. Vol 2855. ACM;
2003:117-133. doi:10.1007/978-3-540-45212-6_9'
apa: 'Chakrabarti, A., De Alfaro, L., Henzinger, T. A., & Stoelinga, M. (2003).
Resource interfaces. In Third International Conference on Embedded Software
(Vol. 2855, pp. 117–133). Philadelphia, PA, USA: ACM. https://doi.org/10.1007/978-3-540-45212-6_9'
chicago: Chakrabarti, Arindam, Luca De Alfaro, Thomas A Henzinger, and Mariëlle
Stoelinga. “Resource Interfaces.” In Third International Conference on Embedded
Software, 2855:117–33. ACM, 2003. https://doi.org/10.1007/978-3-540-45212-6_9.
ieee: A. Chakrabarti, L. De Alfaro, T. A. Henzinger, and M. Stoelinga, “Resource
interfaces,” in Third International Conference on Embedded Software, Philadelphia,
PA, USA, 2003, vol. 2855, pp. 117–133.
ista: 'Chakrabarti A, De Alfaro L, Henzinger TA, Stoelinga M. 2003. Resource interfaces.
Third International Conference on Embedded Software. EMSOFT: Embedded Software
, LNCS, vol. 2855, 117–133.'
mla: Chakrabarti, Arindam, et al. “Resource Interfaces.” Third International
Conference on Embedded Software, vol. 2855, ACM, 2003, pp. 117–33, doi:10.1007/978-3-540-45212-6_9.
short: A. Chakrabarti, L. De Alfaro, T.A. Henzinger, M. Stoelinga, in:, Third International
Conference on Embedded Software, ACM, 2003, pp. 117–133.
conference:
end_date: 2003-10-15
location: Philadelphia, PA, USA
name: 'EMSOFT: Embedded Software '
start_date: 2003-10-13
date_created: 2018-12-11T12:09:29Z
date_published: 2003-09-29T00:00:00Z
date_updated: 2024-01-08T10:48:11Z
day: '29'
doi: 10.1007/978-3-540-45212-6_9
extern: '1'
intvolume: ' 2855'
language:
- iso: eng
month: '09'
oa_version: None
page: 117 - 133
publication: Third International Conference on Embedded Software
publication_identifier:
isbn:
- '9783540202233'
publication_status: published
publisher: ACM
publist_id: '148'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Resource interfaces
type: conference
user_id: ea97e931-d5af-11eb-85d4-e6957dddbf17
volume: 2855
year: '2003'
...
---
_id: '4628'
abstract:
- lang: eng
text: 'Discounting the future means that the value, today, of a unit payoffis 1
if the payoffo ccurs today, a if it occurs tomorrow, a 2 if it occurs the day
after tomorrow, and so on, for some real-valued discount factor 0 < a <
1. Discounting (or inflation) is a key paradigm in economics and has been studied
in Markov decision processes as well as game theory. We submit that discounting
also has a natural place in systems engineering: for nonterminating systems, a
potential bug in the far-away future is less troubling than a potential bug today.
We therefore develop a systems theory with discounting. Our theory includes several
basic elements: discounted versions of system properties that correspond to the
ω-regular properties, fixpoint-based algorithms for checking discounted properties,
and a quantitative notion of bisimilarity for capturing the difference between
two states with respect to discounted properties. We present the theory in a general
form that applies to probabilistic systems as well as multicomponent systems (games),
but it readily specializes to classical transition systems. We show that discounting,
besides its natural practical appeal, has also several mathematical benefits.
First, the resulting theory is robust, in that small perturbations of a system
can cause only small changes in the properties of the system. Second, the theory
is computational, in that the values of discounted properties, as well as the
discounted bisimilarity distance between states, can be computed to any desired
degree of precision.'
acknowledgement: This research was supported in part by the NSF CAREER award CCR-0132780,
the DARPA grant F33615-C-98-3614, the NSF grants CCR-9988172, CCR-0234690 and CCR-0225610,
and the ONR grant N00014-02-1-0671.
alternative_title:
- LNCS
article_processing_charge: No
author:
- first_name: Luca
full_name: De Alfaro, Luca
last_name: De Alfaro
- 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: Ritankar
full_name: Majumdar, Ritankar
last_name: Majumdar
citation:
ama: 'De Alfaro L, Henzinger TA, Majumdar R. Discounting the future in systems theory.
In: Proceedings of the 30th International Colloquium on Automata, Languages
and Programming. Vol 2719. Springer; 2003:1022-1037. doi:10.1007/3-540-45061-0_79'
apa: 'De Alfaro, L., Henzinger, T. A., & Majumdar, R. (2003). Discounting the
future in systems theory. In Proceedings of the 30th International Colloquium
on Automata, Languages and Programming (Vol. 2719, pp. 1022–1037). Eindhoven,
The Netherlands: Springer. https://doi.org/10.1007/3-540-45061-0_79'
chicago: De Alfaro, Luca, Thomas A Henzinger, and Ritankar Majumdar. “Discounting
the Future in Systems Theory.” In Proceedings of the 30th International Colloquium
on Automata, Languages and Programming, 2719:1022–37. Springer, 2003. https://doi.org/10.1007/3-540-45061-0_79.
ieee: L. De Alfaro, T. A. Henzinger, and R. Majumdar, “Discounting the future in
systems theory,” in Proceedings of the 30th International Colloquium on Automata,
Languages and Programming, Eindhoven, The Netherlands, 2003, vol. 2719, pp.
1022–1037.
ista: 'De Alfaro L, Henzinger TA, Majumdar R. 2003. Discounting the future in systems
theory. Proceedings of the 30th International Colloquium on Automata, Languages
and Programming. ICALP: Automata, Languages and Programming, LNCS, vol. 2719,
1022–1037.'
mla: De Alfaro, Luca, et al. “Discounting the Future in Systems Theory.” Proceedings
of the 30th International Colloquium on Automata, Languages and Programming,
vol. 2719, Springer, 2003, pp. 1022–37, doi:10.1007/3-540-45061-0_79.
short: L. De Alfaro, T.A. Henzinger, R. Majumdar, in:, Proceedings of the 30th International
Colloquium on Automata, Languages and Programming, Springer, 2003, pp. 1022–1037.
conference:
end_date: 2003-07-04
location: Eindhoven, The Netherlands
name: 'ICALP: Automata, Languages and Programming'
start_date: 2003-06-30
date_created: 2018-12-11T12:09:50Z
date_published: 2003-06-25T00:00:00Z
date_updated: 2023-07-26T13:07:31Z
day: '25'
doi: 10.1007/3-540-45061-0_79
extern: '1'
intvolume: ' 2719'
language:
- iso: eng
month: '06'
oa_version: None
page: 1022 - 1037
publication: Proceedings of the 30th International Colloquium on Automata, Languages
and Programming
publication_identifier:
isbn:
- '9783540404934'
publication_status: published
publisher: Springer
publist_id: '77'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Discounting the future in systems theory
type: conference
user_id: ea97e931-d5af-11eb-85d4-e6957dddbf17
volume: 2719
year: '2003'
...
---
_id: '4630'
abstract:
- lang: eng
text: We consider concurrent two-person games played in real time, in which the
players decide both which action to play, and when to play it. Such timed games
differ from untimed games in two essential ways. First, players can take each
other by surprise, because actions are played with delays that cannot be anticipated
by the opponent. Second, a player should not be able to win the game by preventing
time from diverging. We present a model of timed games that preserves the element
of surprise and accounts for time divergence in a way that treats both players
symmetrically and applies to all ω-regular winning conditions. We prove that the
ability to take each other by surprise adds extra power to the players. For the
case that the games are specified in the style of timed automata, we provide symbolic
algorithms for their solution with respect to all ω-regular winning conditions.
We also show that for these timed games, memory strategies are more powerful than
memoryless strategies already in the case of reachability objectives.
acknowledgement: Supported in part by the AFOSR MURI grant F49620-00-1-0327, the DARPA
grant F33615-C-98-3614, the MARCO grant 98-DT-660, -the ONR grant N00014-02-1-0671,
the NSF grants CCR-9988172, CCR-0225610, and CCR-0234690, the NSF CAREER award CCR-0132780,
and the MIUR grant MEFISTO.
alternative_title:
- LNCS
article_processing_charge: No
author:
- first_name: Luca
full_name: De Alfaro, Luca
last_name: De Alfaro
- first_name: Marco
full_name: Faella, Marco
last_name: Faella
- 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: Ritankar
full_name: Majumdar, Ritankar
last_name: Majumdar
- first_name: Mariëlle
full_name: Stoelinga, Mariëlle
last_name: Stoelinga
citation:
ama: 'De Alfaro L, Faella M, Henzinger TA, Majumdar R, Stoelinga M. The element
of surprise in timed games. In: Proceedings of the 14th International Conference
on Concurrency Theory. Vol 2761. Schloss Dagstuhl - Leibniz-Zentrum für Informatik;
2003:144-158. doi:10.1007/978-3-540-45187-7_9'
apa: 'De Alfaro, L., Faella, M., Henzinger, T. A., Majumdar, R., & Stoelinga,
M. (2003). The element of surprise in timed games. In Proceedings of the 14th
International Conference on Concurrency Theory (Vol. 2761, pp. 144–158). Marseille,
France: Schloss Dagstuhl - Leibniz-Zentrum für Informatik. https://doi.org/10.1007/978-3-540-45187-7_9'
chicago: De Alfaro, Luca, Marco Faella, Thomas A Henzinger, Ritankar Majumdar, and
Mariëlle Stoelinga. “The Element of Surprise in Timed Games.” In Proceedings
of the 14th International Conference on Concurrency Theory, 2761:144–58. Schloss
Dagstuhl - Leibniz-Zentrum für Informatik, 2003. https://doi.org/10.1007/978-3-540-45187-7_9.
ieee: L. De Alfaro, M. Faella, T. A. Henzinger, R. Majumdar, and M. Stoelinga, “The
element of surprise in timed games,” in Proceedings of the 14th International
Conference on Concurrency Theory, Marseille, France, 2003, vol. 2761, pp.
144–158.
ista: 'De Alfaro L, Faella M, Henzinger TA, Majumdar R, Stoelinga M. 2003. The element
of surprise in timed games. Proceedings of the 14th International Conference on
Concurrency Theory. CONCUR: Concurrency Theory, LNCS, vol. 2761, 144–158.'
mla: De Alfaro, Luca, et al. “The Element of Surprise in Timed Games.” Proceedings
of the 14th International Conference on Concurrency Theory, vol. 2761, Schloss
Dagstuhl - Leibniz-Zentrum für Informatik, 2003, pp. 144–58, doi:10.1007/978-3-540-45187-7_9.
short: L. De Alfaro, M. Faella, T.A. Henzinger, R. Majumdar, M. Stoelinga, in:,
Proceedings of the 14th International Conference on Concurrency Theory, Schloss
Dagstuhl - Leibniz-Zentrum für Informatik, 2003, pp. 144–158.
conference:
end_date: 2003-09-05
location: Marseille, France
name: 'CONCUR: Concurrency Theory'
start_date: 2003-09-03
date_created: 2018-12-11T12:09:51Z
date_published: 2003-08-21T00:00:00Z
date_updated: 2024-01-08T10:05:30Z
day: '21'
doi: 10.1007/978-3-540-45187-7_9
extern: '1'
intvolume: ' 2761'
language:
- iso: eng
month: '08'
oa_version: None
page: 144 - 158
publication: Proceedings of the 14th International Conference on Concurrency Theory
publication_identifier:
isbn:
- '9783540407539'
publication_status: published
publisher: Schloss Dagstuhl - Leibniz-Zentrum für Informatik
publist_id: '78'
quality_controlled: '1'
scopus_import: '1'
status: public
title: The element of surprise in timed games
type: conference
user_id: ea97e931-d5af-11eb-85d4-e6957dddbf17
volume: 2761
year: '2003'
...
---
_id: '576'
abstract:
- lang: eng
text: 'We study the free expansion of a pancake-shaped Bose-condensed gas, which
is initially trapped under harmonic confinement and containing a vortex at its
centre. In the case of a radial expansion holding the axial confinement fixed
we consider various models for the interactions, depending on the thickness of
the condensate relative to the value of the scattering length. We are thus able
to evaluate different scattering regimes ranging from quasi-three-dimensional
(Q3D) to strictly two-dimensional (2D). We find that as the system goes from Q3D
to 2D the expansion rate of the condensate increases whereas that of the vortex
core decreases. In the Q3D scattering regime we also examine a fully free expansion
in 3D and find oscillatory behaviour for the vortex core radius: an initial fast
expansion of the vortex core is followed by a slowing down. Such a nonuniform
expansion rate of the vortex core implies that the timing of its observation should
be chosen appropriately.'
author:
- first_name: Onur
full_name: Onur Hosten
id: 4C02D85E-F248-11E8-B48F-1D18A9856A87
last_name: Hosten
orcid: 0000-0002-2031-204X
- first_name: Patrizia
full_name: Vignolo, Patrizia
last_name: Vignolo
- first_name: Anna
full_name: Minguzzi, Anna
last_name: Minguzzi
- first_name: Bilal
full_name: Tanatar, Bilal
last_name: Tanatar
- first_name: Mario
full_name: Tosi, Mario P
last_name: Tosi
citation:
ama: 'Hosten O, Vignolo P, Minguzzi A, Tanatar B, Tosi M. Free expansion of two-dimensional
condensates with a vortex. Journal of Physics B: Atomic, Molecular and Optical
Physics. 2003;36(12):2455-2463. doi:10.1088/0953-4075/36/12/306'
apa: 'Hosten, O., Vignolo, P., Minguzzi, A., Tanatar, B., & Tosi, M. (2003).
Free expansion of two-dimensional condensates with a vortex. Journal of Physics
B: Atomic, Molecular and Optical Physics. IOP Publishing Ltd. https://doi.org/10.1088/0953-4075/36/12/306'
chicago: 'Hosten, Onur, Patrizia Vignolo, Anna Minguzzi, Bilal Tanatar, and Mario
Tosi. “Free Expansion of Two-Dimensional Condensates with a Vortex.” Journal
of Physics B: Atomic, Molecular and Optical Physics. IOP Publishing Ltd.,
2003. https://doi.org/10.1088/0953-4075/36/12/306.'
ieee: 'O. Hosten, P. Vignolo, A. Minguzzi, B. Tanatar, and M. Tosi, “Free expansion
of two-dimensional condensates with a vortex,” Journal of Physics B: Atomic,
Molecular and Optical Physics, vol. 36, no. 12. IOP Publishing Ltd., pp. 2455–2463,
2003.'
ista: 'Hosten O, Vignolo P, Minguzzi A, Tanatar B, Tosi M. 2003. Free expansion
of two-dimensional condensates with a vortex. Journal of Physics B: Atomic, Molecular
and Optical Physics. 36(12), 2455–2463.'
mla: 'Hosten, Onur, et al. “Free Expansion of Two-Dimensional Condensates with a
Vortex.” Journal of Physics B: Atomic, Molecular and Optical Physics, vol.
36, no. 12, IOP Publishing Ltd., 2003, pp. 2455–63, doi:10.1088/0953-4075/36/12/306.'
short: 'O. Hosten, P. Vignolo, A. Minguzzi, B. Tanatar, M. Tosi, Journal of Physics
B: Atomic, Molecular and Optical Physics 36 (2003) 2455–2463.'
date_created: 2018-12-11T11:47:16Z
date_published: 2003-06-28T00:00:00Z
date_updated: 2021-01-12T08:03:20Z
day: '28'
doi: 10.1088/0953-4075/36/12/306
extern: 1
intvolume: ' 36'
issue: '12'
month: '06'
page: 2455 - 2463
publication: 'Journal of Physics B: Atomic, Molecular and Optical Physics'
publication_status: published
publisher: IOP Publishing Ltd.
publist_id: '7239'
quality_controlled: 0
status: public
title: Free expansion of two-dimensional condensates with a vortex
type: journal_article
volume: 36
year: '2003'
...
---
_id: '6156'
abstract:
- lang: eng
text: 'Social and solitary feeding in natural Caenorhabditis elegans isolates are
associated with two alleles of the orphan G-protein-coupled receptor (GPCR) NPR-1:
social feeders contain NPR-1 215F, whereas solitary feeders contain NPR-1 215V.
Here we identify FMRFamide-related neuropeptides (FaRPs) encoded by the flp-18
and flp-21 genes as NPR-1 ligands and show that these peptides can differentially
activate the NPR-1 215F and NPR-1 215V receptors. Multicopy overexpression of
flp-21 transformed wild social animals into solitary feeders. Conversely, a flp-21
deletion partially phenocopied the npr-1(null) phenotype, which is consistent
with NPR-1 activation by FLP-21 in vivo but also implicates other ligands for
NPR-1. Phylogenetic studies indicate that the dominant npr-1 215V allele likely
arose from an ancestral npr-1 215F gene in C. elegans. Our data suggest a model
in which solitary feeding evolved in an ancestral social strain of C. elegans
by a gain-of-function mutation that modified the response of NPR-1 to FLP-18 and
FLP-21 ligands.'
author:
- first_name: Candida
full_name: Rogers, Candida
last_name: Rogers
- first_name: Vincenzina
full_name: Reale, Vincenzina
last_name: Reale
- first_name: Kyuhyung
full_name: Kim, Kyuhyung
last_name: Kim
- first_name: Heather
full_name: Chatwin, Heather
last_name: Chatwin
- first_name: Chris
full_name: Li, Chris
last_name: Li
- first_name: Peter
full_name: Evans, Peter
last_name: Evans
- first_name: Mario
full_name: de Bono, Mario
id: 4E3FF80E-F248-11E8-B48F-1D18A9856A87
last_name: de Bono
orcid: 0000-0001-8347-0443
citation:
ama: Rogers C, Reale V, Kim K, et al. Inhibition of Caenorhabditis elegans social
feeding by FMRFamide-related peptide activation of NPR-1. Nature Neuroscience.
2003;6(11):1178-1185. doi:10.1038/nn1140
apa: Rogers, C., Reale, V., Kim, K., Chatwin, H., Li, C., Evans, P., & de Bono,
M. (2003). Inhibition of Caenorhabditis elegans social feeding by FMRFamide-related
peptide activation of NPR-1. Nature Neuroscience. Springer Nature. https://doi.org/10.1038/nn1140
chicago: Rogers, Candida, Vincenzina Reale, Kyuhyung Kim, Heather Chatwin, Chris
Li, Peter Evans, and Mario de Bono. “Inhibition of Caenorhabditis Elegans Social
Feeding by FMRFamide-Related Peptide Activation of NPR-1.” Nature Neuroscience.
Springer Nature, 2003. https://doi.org/10.1038/nn1140.
ieee: C. Rogers et al., “Inhibition of Caenorhabditis elegans social feeding
by FMRFamide-related peptide activation of NPR-1,” Nature Neuroscience,
vol. 6, no. 11. Springer Nature, pp. 1178–1185, 2003.
ista: Rogers C, Reale V, Kim K, Chatwin H, Li C, Evans P, de Bono M. 2003. Inhibition
of Caenorhabditis elegans social feeding by FMRFamide-related peptide activation
of NPR-1. Nature Neuroscience. 6(11), 1178–1185.
mla: Rogers, Candida, et al. “Inhibition of Caenorhabditis Elegans Social Feeding
by FMRFamide-Related Peptide Activation of NPR-1.” Nature Neuroscience,
vol. 6, no. 11, Springer Nature, 2003, pp. 1178–85, doi:10.1038/nn1140.
short: C. Rogers, V. Reale, K. Kim, H. Chatwin, C. Li, P. Evans, M. de Bono, Nature
Neuroscience 6 (2003) 1178–1185.
date_created: 2019-03-21T09:47:53Z
date_published: 2003-10-12T00:00:00Z
date_updated: 2021-01-12T08:06:25Z
day: '12'
doi: 10.1038/nn1140
extern: '1'
external_id:
pmid:
- '14555955'
intvolume: ' 6'
issue: '11'
language:
- iso: eng
month: '10'
oa_version: None
page: 1178-1185
pmid: 1
publication: Nature Neuroscience
publication_identifier:
issn:
- 1097-6256
- 1546-1726
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
status: public
title: Inhibition of Caenorhabditis elegans social feeding by FMRFamide-related peptide
activation of NPR-1
type: journal_article
user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87
volume: 6
year: '2003'
...
---
_id: '6157'
abstract:
- lang: eng
text: In many animal species individuals aggregate to live in groups. A range of
experimental approaches in different animals, including studies of social feeding
in nematodes, maternal behavior in rats and sheep, and pair-bonding in voles,
are providing insights into the neural bases for these behaviors. These studies
are delineating multiple neural circuits and gene networks in the brain that interact
in ways that are as yet poorly understood to coordinate social behavior.
author:
- first_name: Mario
full_name: de Bono, Mario
id: 4E3FF80E-F248-11E8-B48F-1D18A9856A87
last_name: de Bono
orcid: 0000-0001-8347-0443
citation:
ama: de Bono M. Molecular approaches to aggregation behavior and social attachment.
Journal of Neurobiology. 2003;54(1):78-92. doi:10.1002/neu.10162
apa: de Bono, M. (2003). Molecular approaches to aggregation behavior and social
attachment. Journal of Neurobiology. Wiley. https://doi.org/10.1002/neu.10162
chicago: Bono, Mario de. “Molecular Approaches to Aggregation Behavior and Social
Attachment.” Journal of Neurobiology. Wiley, 2003. https://doi.org/10.1002/neu.10162.
ieee: M. de Bono, “Molecular approaches to aggregation behavior and social attachment,”
Journal of Neurobiology, vol. 54, no. 1. Wiley, pp. 78–92, 2003.
ista: de Bono M. 2003. Molecular approaches to aggregation behavior and social attachment.
Journal of Neurobiology. 54(1), 78–92.
mla: de Bono, Mario. “Molecular Approaches to Aggregation Behavior and Social Attachment.”
Journal of Neurobiology, vol. 54, no. 1, Wiley, 2003, pp. 78–92, doi:10.1002/neu.10162.
short: M. de Bono, Journal of Neurobiology 54 (2003) 78–92.
date_created: 2019-03-21T09:52:31Z
date_published: 2003-01-01T00:00:00Z
date_updated: 2021-01-12T08:06:26Z
day: '01'
doi: 10.1002/neu.10162
extern: '1'
external_id:
pmid:
- '12486699'
intvolume: ' 54'
issue: '1'
language:
- iso: eng
month: '01'
oa_version: None
page: 78-92
pmid: 1
publication: Journal of Neurobiology
publication_identifier:
issn:
- 0022-3034
- 1097-4695
publication_status: published
publisher: Wiley
quality_controlled: '1'
status: public
title: Molecular approaches to aggregation behavior and social attachment
type: journal_article
user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87
volume: 54
year: '2003'
...
---
_id: '1457'
abstract:
- lang: eng
text: 'Among the major mathematical approaches to mirror symmetry are those of Batyrev-Borisov
and Stromdnger-Yau-Zaslow (SYZ). The first is explicit and amenable to computation
but is not clearly related to the physical motivation; the second is the opposite.
Furthermore, it is far from obvious that mirror partners in one sense will also
be mirror partners in the other. This paper concerns a class of examples that
can be shown to satisfy the requirements of SYZ, but whose Hodge numbers are also
equal. This provides significant evidence in support of SYZ. Moreover, the examples
are of great interest in their own right: they are spaces of flat SLr-connections
on a smooth curve. The mirror is the corresponding space for the Langlands dual
group PGLr. These examples therefore throw a bridge from mirror symmetry to the
duality theory of Lie groups and, more broadly, to the geometric Langlands program.'
author:
- first_name: Tamas
full_name: Tamas Hausel
id: 4A0666D8-F248-11E8-B48F-1D18A9856A87
last_name: Hausel
- first_name: Michael
full_name: Thaddeus, Michael
last_name: Thaddeus
citation:
ama: Hausel T, Thaddeus M. Mirror symmetry, langlands duality, and the Hitchin system.
Inventiones Mathematicae. 2003;153(1):197-229. doi:10.1007/s00222-003-0286-7
apa: Hausel, T., & Thaddeus, M. (2003). Mirror symmetry, langlands duality,
and the Hitchin system. Inventiones Mathematicae. Springer. https://doi.org/10.1007/s00222-003-0286-7
chicago: Hausel, Tamás, and Michael Thaddeus. “Mirror Symmetry, Langlands Duality,
and the Hitchin System.” Inventiones Mathematicae. Springer, 2003. https://doi.org/10.1007/s00222-003-0286-7.
ieee: T. Hausel and M. Thaddeus, “Mirror symmetry, langlands duality, and the Hitchin
system,” Inventiones Mathematicae, vol. 153, no. 1. Springer, pp. 197–229,
2003.
ista: Hausel T, Thaddeus M. 2003. Mirror symmetry, langlands duality, and the Hitchin
system. Inventiones Mathematicae. 153(1), 197–229.
mla: Hausel, Tamás, and Michael Thaddeus. “Mirror Symmetry, Langlands Duality, and
the Hitchin System.” Inventiones Mathematicae, vol. 153, no. 1, Springer,
2003, pp. 197–229, doi:10.1007/s00222-003-0286-7.
short: T. Hausel, M. Thaddeus, Inventiones Mathematicae 153 (2003) 197–229.
date_created: 2018-12-11T11:52:08Z
date_published: 2003-07-01T00:00:00Z
date_updated: 2021-01-12T06:50:52Z
day: '01'
doi: 10.1007/s00222-003-0286-7
extern: 1
intvolume: ' 153'
issue: '1'
main_file_link:
- open_access: '1'
url: http://arxiv.org/abs/math/0205236
month: '07'
oa: 1
page: 197 - 229
publication: Inventiones Mathematicae
publication_status: published
publisher: Springer
publist_id: '5738'
quality_controlled: 0
status: public
title: Mirror symmetry, langlands duality, and the Hitchin system
type: journal_article
volume: 153
year: '2003'
...
---
_id: '1458'
abstract:
- lang: eng
text: The moduli space of stable bundles of rank $2$ and degree $1$ on a Riemann
surface has rational cohomology generated by the so-called universal classes.
The work of Baranovsky, King-Newstead, Siebert-Tian and Zagier provided a complete
set of relations between these classes, expressed in terms of a recursion in the
genus. This paper accomplishes the same thing for the noncompact moduli spaces
of Higgs bundles, in the sense of Hitchin and Simpson. There are many more independent
relations than for stable bundles, but in a sense the answer is simpler, since
the formulas are completely explicit, not recursive. The results of Kirwan on
equivariant cohomology for holomorphic circle actions are of key importance.
acknowledgement: The first author was supported by NSF grant DMS-97-29992. The second
author was supported by NSF grant DMS-98-08529.
author:
- first_name: Tamas
full_name: Tamas Hausel
id: 4A0666D8-F248-11E8-B48F-1D18A9856A87
last_name: Hausel
- first_name: Michael
full_name: Thaddeus, Michael
last_name: Thaddeus
citation:
ama: Hausel T, Thaddeus M. Relations in the cohomology ring of the moduli space
of rank 2 Higgs bundles. Journal of the American Mathematical Society.
2003;16(2):303-329. doi:10.1090/S0894-0347-02-00417-4
apa: Hausel, T., & Thaddeus, M. (2003). Relations in the cohomology ring of
the moduli space of rank 2 Higgs bundles. Journal of the American Mathematical
Society. American Mathematical Society. https://doi.org/10.1090/S0894-0347-02-00417-4
chicago: Hausel, Tamás, and Michael Thaddeus. “Relations in the Cohomology Ring
of the Moduli Space of Rank 2 Higgs Bundles.” Journal of the American Mathematical
Society. American Mathematical Society, 2003. https://doi.org/10.1090/S0894-0347-02-00417-4.
ieee: T. Hausel and M. Thaddeus, “Relations in the cohomology ring of the moduli
space of rank 2 Higgs bundles,” Journal of the American Mathematical Society,
vol. 16, no. 2. American Mathematical Society, pp. 303–329, 2003.
ista: Hausel T, Thaddeus M. 2003. Relations in the cohomology ring of the moduli
space of rank 2 Higgs bundles. Journal of the American Mathematical Society. 16(2),
303–329.
mla: Hausel, Tamás, and Michael Thaddeus. “Relations in the Cohomology Ring of the
Moduli Space of Rank 2 Higgs Bundles.” Journal of the American Mathematical
Society, vol. 16, no. 2, American Mathematical Society, 2003, pp. 303–29,
doi:10.1090/S0894-0347-02-00417-4.
short: T. Hausel, M. Thaddeus, Journal of the American Mathematical Society 16 (2003)
303–329.
date_created: 2018-12-11T11:52:08Z
date_published: 2003-04-01T00:00:00Z
date_updated: 2021-01-12T06:50:53Z
day: '01'
doi: 10.1090/S0894-0347-02-00417-4
extern: 1
intvolume: ' 16'
issue: '2'
main_file_link:
- open_access: '1'
url: http://arxiv.org/abs/math/0003094
month: '04'
oa: 1
page: 303 - 329
publication: Journal of the American Mathematical Society
publication_status: published
publisher: American Mathematical Society
publist_id: '5739'
quality_controlled: 0
status: public
title: Relations in the cohomology ring of the moduli space of rank 2 Higgs bundles
type: journal_article
volume: 16
year: '2003'
...
---
_id: '1459'
abstract:
- lang: eng
text: 'In this paper we explicitly calculate the analogue of the ''t Hooft SU (2)
Yang-Mills instantons on Gibbons-Hawking multi-centered gravitational instantons,
which come in two parallel families: the multi-Eguchi-Hanson, or Ak ALE gravitational
instantons and the multi-Taub-NUT spaces, or Ak ALF gravitational instantons.
We calculate their energy and find the reducible ones. Following Kronheimer we
also exploit the U(1) invariance of our solutions and study the corresponding
explicit singular SU (2) magnetic monopole solutions of the Bogomolny equations
on flat ℝ3.'
acknowledgement: We would like to acknowledge the financial support by Prof. P. Major
(R ́ enyi Institute, Hungary) from his OTKA grant No. T26176 and of the Miller Institute
for Basic Research in Science at UC Berkeley.
author:
- first_name: Gábor
full_name: Etesi, Gábor
last_name: Etesi
- first_name: Tamas
full_name: Tamas Hausel
id: 4A0666D8-F248-11E8-B48F-1D18A9856A87
last_name: Hausel
citation:
ama: Etesi G, Hausel T. On Yang-Mills instantons over multi-centered gravitational
instantons. Communications in Mathematical Physics. 2003;235(2):275-288.
doi:10.1007/s00220-003-0806-8
apa: Etesi, G., & Hausel, T. (2003). On Yang-Mills instantons over multi-centered
gravitational instantons. Communications in Mathematical Physics. Springer.
https://doi.org/10.1007/s00220-003-0806-8
chicago: Etesi, Gábor, and Tamás Hausel. “On Yang-Mills Instantons over Multi-Centered
Gravitational Instantons.” Communications in Mathematical Physics. Springer,
2003. https://doi.org/10.1007/s00220-003-0806-8.
ieee: G. Etesi and T. Hausel, “On Yang-Mills instantons over multi-centered gravitational
instantons,” Communications in Mathematical Physics, vol. 235, no. 2. Springer,
pp. 275–288, 2003.
ista: Etesi G, Hausel T. 2003. On Yang-Mills instantons over multi-centered gravitational
instantons. Communications in Mathematical Physics. 235(2), 275–288.
mla: Etesi, Gábor, and Tamás Hausel. “On Yang-Mills Instantons over Multi-Centered
Gravitational Instantons.” Communications in Mathematical Physics, vol.
235, no. 2, Springer, 2003, pp. 275–88, doi:10.1007/s00220-003-0806-8.
short: G. Etesi, T. Hausel, Communications in Mathematical Physics 235 (2003) 275–288.
date_created: 2018-12-11T11:52:09Z
date_published: 2003-04-01T00:00:00Z
date_updated: 2021-01-12T06:50:53Z
day: '01'
doi: 10.1007/s00220-003-0806-8
extern: 1
intvolume: ' 235'
issue: '2'
main_file_link:
- open_access: '1'
url: http://arxiv.org/abs/hep-th/0207196
month: '04'
oa: 1
page: 275 - 288
publication: Communications in Mathematical Physics
publication_status: published
publisher: Springer
publist_id: '5740'
quality_controlled: 0
status: public
title: On Yang-Mills instantons over multi-centered gravitational instantons
type: journal_article
volume: 235
year: '2003'
...
---
_id: '13436'
abstract:
- lang: eng
text: Cross-metathesis reactions of α,β-unsaturated sulfones and sulfoxides in the
presence of molybdenum and ruthenium pre-catalysts were tested. A selective metahesis
reaction was achieved between functionalized terminal olefins and vinyl sulfones
by using the ‘second generation’ ruthenium catalysts 1c–h while the highly active
Schrock catalyst 1b was found to be functional group incompatible with vinyl sulfones.
The cross-metathesis products were isolated in good yields with an excellent (E)-selectivity.
Both the molybdenum and ruthenium-based complexes were, however, incompatible
with α,β- and β,γ-unsaturated sulfoxides.
article_processing_charge: No
article_type: original
author:
- first_name: Anna
full_name: Michrowska, Anna
last_name: Michrowska
- first_name: Michał
full_name: Bieniek, Michał
last_name: Bieniek
- first_name: Mikhail
full_name: Kim, Mikhail
last_name: Kim
- first_name: Rafal
full_name: Klajn, Rafal
id: 8e84690e-1e48-11ed-a02b-a1e6fb8bb53b
last_name: Klajn
- first_name: Karol
full_name: Grela, Karol
last_name: Grela
citation:
ama: Michrowska A, Bieniek M, Kim M, Klajn R, Grela K. Cross-metathesis reaction
of vinyl sulfones and sulfoxides. Tetrahedron. 2003;59(25):4525-4531. doi:10.1016/s0040-4020(03)00682-3
apa: Michrowska, A., Bieniek, M., Kim, M., Klajn, R., & Grela, K. (2003). Cross-metathesis
reaction of vinyl sulfones and sulfoxides. Tetrahedron. Elsevier. https://doi.org/10.1016/s0040-4020(03)00682-3
chicago: Michrowska, Anna, Michał Bieniek, Mikhail Kim, Rafal Klajn, and Karol Grela.
“Cross-Metathesis Reaction of Vinyl Sulfones and Sulfoxides.” Tetrahedron.
Elsevier, 2003. https://doi.org/10.1016/s0040-4020(03)00682-3.
ieee: A. Michrowska, M. Bieniek, M. Kim, R. Klajn, and K. Grela, “Cross-metathesis
reaction of vinyl sulfones and sulfoxides,” Tetrahedron, vol. 59, no. 25.
Elsevier, pp. 4525–4531, 2003.
ista: Michrowska A, Bieniek M, Kim M, Klajn R, Grela K. 2003. Cross-metathesis reaction
of vinyl sulfones and sulfoxides. Tetrahedron. 59(25), 4525–4531.
mla: Michrowska, Anna, et al. “Cross-Metathesis Reaction of Vinyl Sulfones and Sulfoxides.”
Tetrahedron, vol. 59, no. 25, Elsevier, 2003, pp. 4525–31, doi:10.1016/s0040-4020(03)00682-3.
short: A. Michrowska, M. Bieniek, M. Kim, R. Klajn, K. Grela, Tetrahedron 59 (2003)
4525–4531.
date_created: 2023-08-01T10:39:34Z
date_published: 2003-06-16T00:00:00Z
date_updated: 2023-08-08T12:44:17Z
day: '16'
doi: 10.1016/s0040-4020(03)00682-3
extern: '1'
intvolume: ' 59'
issue: '25'
keyword:
- Organic Chemistry
- Drug Discovery
- Biochemistry
language:
- iso: eng
month: '06'
oa_version: None
page: 4525-4531
publication: Tetrahedron
publication_identifier:
eissn:
- 1464-5416
issn:
- 0040-4020
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: Cross-metathesis reaction of vinyl sulfones and sulfoxides
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 59
year: '2003'
...
---
_id: '9455'
abstract:
- lang: eng
text: Proteins of the ARGONAUTE family are important in diverse posttranscriptional
RNA-mediated gene-silencing systems as well as in transcriptional gene silencing
in Drosophila and fission yeast and in programmed DNA elimination in Tetrahymena.
We cloned ARGONAUTE4 (AGO4) from a screen for mutants that suppress silencing
of the Arabidopsis SUPERMAN(SUP) gene. The ago4-1 mutant reactivated silentSUP
alleles and decreased CpNpG and asymmetric DNA methylation as well as histone
H3 lysine-9 methylation. In addition,ago4-1 blocked histone and DNA methylation
and the accumulation of 25-nucleotide small interfering RNAs (siRNAs) that correspond
to the retroelement AtSN1. These results suggest that AGO4 and long siRNAs direct
chromatin modifications, including histone methylation and non-CpG DNA methylation.
article_processing_charge: No
article_type: original
author:
- first_name: Daniel
full_name: Zilberman, Daniel
id: 6973db13-dd5f-11ea-814e-b3e5455e9ed1
last_name: Zilberman
orcid: 0000-0002-0123-8649
- first_name: ' Xiaofeng'
full_name: Cao, Xiaofeng
last_name: Cao
- first_name: Steven E.
full_name: Jacobsen, Steven E.
last_name: Jacobsen
citation:
ama: Zilberman D, Cao Xiaofeng, Jacobsen SE. ARGONAUTE4 control of locus-specific
siRNA accumulation and DNA and histone methylation. Science. 2003;299(5607):716-719.
doi:10.1126/science.1079695
apa: Zilberman, D., Cao, Xiaofeng, & Jacobsen, S. E. (2003). ARGONAUTE4 control
of locus-specific siRNA accumulation and DNA and histone methylation. Science.
American Association for the Advancement of Science. https://doi.org/10.1126/science.1079695
chicago: Zilberman, Daniel, Xiaofeng Cao, and Steven E. Jacobsen. “ARGONAUTE4 Control
of Locus-Specific SiRNA Accumulation and DNA and Histone Methylation.” Science.
American Association for the Advancement of Science, 2003. https://doi.org/10.1126/science.1079695.
ieee: D. Zilberman, Xiaofeng Cao, and S. E. Jacobsen, “ARGONAUTE4 control of locus-specific
siRNA accumulation and DNA and histone methylation,” Science, vol. 299,
no. 5607. American Association for the Advancement of Science, pp. 716–719, 2003.
ista: Zilberman D, Cao Xiaofeng, Jacobsen SE. 2003. ARGONAUTE4 control of locus-specific
siRNA accumulation and DNA and histone methylation. Science. 299(5607), 716–719.
mla: Zilberman, Daniel, et al. “ARGONAUTE4 Control of Locus-Specific SiRNA Accumulation
and DNA and Histone Methylation.” Science, vol. 299, no. 5607, American
Association for the Advancement of Science, 2003, pp. 716–19, doi:10.1126/science.1079695.
short: D. Zilberman, Xiaofeng Cao, S.E. Jacobsen, Science 299 (2003) 716–719.
date_created: 2021-06-04T11:26:26Z
date_published: 2003-01-31T00:00:00Z
date_updated: 2021-12-14T08:43:30Z
day: '31'
department:
- _id: DaZi
doi: 10.1126/science.1079695
extern: '1'
external_id:
pmid:
- '12522258'
intvolume: ' 299'
issue: '5607'
keyword:
- Multidisciplinary
language:
- iso: eng
month: '01'
oa_version: None
page: 716-719
pmid: 1
publication: Science
publication_identifier:
eissn:
- 1095-9203
issn:
- 0036-8075
publication_status: published
publisher: American Association for the Advancement of Science
quality_controlled: '1'
scopus_import: '1'
status: public
title: ARGONAUTE4 control of locus-specific siRNA accumulation and DNA and histone
methylation
type: journal_article
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
volume: 299
year: '2003'
...
---
_id: '9495'
abstract:
- lang: eng
text: RNA interference is a conserved process in which double-stranded RNA is processed
into 21–25 nucleotide siRNAs that trigger posttranscriptional gene silencing.
In addition, plants display a phenomenon termed RNA-directed DNA methylation (RdDM)
in which DNA with sequence identity to silenced RNA is de novo methylated at its
cytosine residues. This methylation is not only at canonical CpG sites but also
at cytosines in CpNpG and asymmetric sequence contexts. In this report, we study
the role of the DRM and CMT3 DNA methyltransferase genes in the initiation and
maintenance of RdDM. Neither drm nor cmt3 mutants affected the maintenance of
preestablished RNA-directed CpG methylation. However, drm mutants showed a nearly
complete loss of asymmetric methylation and a partial loss of CpNpG methylation.
The remaining asymmetric and CpNpG methylation was dependent on the activity of
CMT3, showing that DRM and CMT3 act redundantly to maintain non-CpG methylation.
These DNA methyltransferases appear to act downstream of siRNAs, since drm1 drm2
cmt3 triple mutants show a lack of non-CpG methylation but elevated levels of
siRNAs. Finally, we demonstrate that DRM activity is required for the initial
establishment of RdDM in all sequence contexts including CpG, CpNpG, and asymmetric
sites.
article_processing_charge: No
article_type: original
author:
- first_name: Xiaofeng
full_name: Cao, Xiaofeng
last_name: Cao
- first_name: Werner
full_name: Aufsatz, Werner
last_name: Aufsatz
- first_name: Daniel
full_name: Zilberman, Daniel
id: 6973db13-dd5f-11ea-814e-b3e5455e9ed1
last_name: Zilberman
orcid: 0000-0002-0123-8649
- first_name: M.Florian
full_name: Mette, M.Florian
last_name: Mette
- first_name: Michael S.
full_name: Huang, Michael S.
last_name: Huang
- first_name: Marjori
full_name: Matzke, Marjori
last_name: Matzke
- first_name: Steven E.
full_name: Jacobsen, Steven E.
last_name: Jacobsen
citation:
ama: Cao X, Aufsatz W, Zilberman D, et al. Role of the DRM and CMT3 methyltransferases
in RNA-directed DNA methylation. Current Biology. 2003;13(24):2212-2217.
doi:10.1016/j.cub.2003.11.052
apa: Cao, X., Aufsatz, W., Zilberman, D., Mette, M. F., Huang, M. S., Matzke, M.,
& Jacobsen, S. E. (2003). Role of the DRM and CMT3 methyltransferases in RNA-directed
DNA methylation. Current Biology. Elsevier. https://doi.org/10.1016/j.cub.2003.11.052
chicago: Cao, Xiaofeng, Werner Aufsatz, Daniel Zilberman, M.Florian Mette, Michael
S. Huang, Marjori Matzke, and Steven E. Jacobsen. “Role of the DRM and CMT3 Methyltransferases
in RNA-Directed DNA Methylation.” Current Biology. Elsevier, 2003. https://doi.org/10.1016/j.cub.2003.11.052.
ieee: X. Cao et al., “Role of the DRM and CMT3 methyltransferases in RNA-directed
DNA methylation,” Current Biology, vol. 13, no. 24. Elsevier, pp. 2212–2217,
2003.
ista: Cao X, Aufsatz W, Zilberman D, Mette MF, Huang MS, Matzke M, Jacobsen SE.
2003. Role of the DRM and CMT3 methyltransferases in RNA-directed DNA methylation.
Current Biology. 13(24), 2212–2217.
mla: Cao, Xiaofeng, et al. “Role of the DRM and CMT3 Methyltransferases in RNA-Directed
DNA Methylation.” Current Biology, vol. 13, no. 24, Elsevier, 2003, pp.
2212–17, doi:10.1016/j.cub.2003.11.052.
short: X. Cao, W. Aufsatz, D. Zilberman, M.F. Mette, M.S. Huang, M. Matzke, S.E.
Jacobsen, Current Biology 13 (2003) 2212–2217.
date_created: 2021-06-07T10:43:02Z
date_published: 2003-12-16T00:00:00Z
date_updated: 2021-12-14T08:41:38Z
day: '16'
department:
- _id: DaZi
doi: 10.1016/j.cub.2003.11.052
extern: '1'
external_id:
pmid:
- '14680640'
intvolume: ' 13'
issue: '24'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1016/j.cub.2003.11.052
month: '12'
oa: 1
oa_version: Published Version
page: 2212-2217
pmid: 1
publication: Current Biology
publication_identifier:
eissn:
- 1879-0445
issn:
- 0960-9822
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: Role of the DRM and CMT3 methyltransferases in RNA-directed DNA methylation
type: journal_article
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
volume: 13
year: '2003'
...
---
_id: '11860'
abstract:
- lang: eng
text: Many daily activities present information in the form of a stream of text,
and often people can benefit from additional information on the topic discussed.
TV broadcast news can be treated as one such stream of text; in this paper we
discuss finding news articles on the web that are relevant to news currently being
broadcast.We evaluated a variety of algorithms for this problem, looking at the
impact of inverse document frequency, stemming, compounds, history, and query
length on the relevance and coverage of news articles returned in real time during
a broadcast. We also evaluated several postprocessing techniques for improving
the precision, including reranking using additional terms, reranking by document
similarity, and filtering on document similarity. For the best algorithm, 84%-91%
of the articles found were relevant, with at least 64% of the articles being on
the exact topic of the broadcast. In addition, a relevant article was found for
at least 70% of the topics.
article_number: 1-10
article_processing_charge: No
author:
- first_name: Monika H
full_name: Henzinger, Monika H
id: 540c9bbd-f2de-11ec-812d-d04a5be85630
last_name: Henzinger
orcid: 0000-0002-5008-6530
- first_name: Bay-Wei
full_name: Chang, Bay-Wei
last_name: Chang
- first_name: Brian
full_name: Milch, Brian
last_name: Milch
- first_name: Sergey
full_name: Brin, Sergey
last_name: Brin
citation:
ama: 'Henzinger MH, Chang B-W, Milch B, Brin S. Query-free news search. In: Proceedings
of the 12th International Conference on World Wide Web. Association for Computing
Machinery; 2003. doi:10.1145/775152.775154'
apa: 'Henzinger, M. H., Chang, B.-W., Milch, B., & Brin, S. (2003). Query-free
news search. In Proceedings of the 12th international conference on World Wide
Web. Budapest, Hungary: Association for Computing Machinery. https://doi.org/10.1145/775152.775154'
chicago: Henzinger, Monika H, Bay-Wei Chang, Brian Milch, and Sergey Brin. “Query-Free
News Search.” In Proceedings of the 12th International Conference on World
Wide Web. Association for Computing Machinery, 2003. https://doi.org/10.1145/775152.775154.
ieee: M. H. Henzinger, B.-W. Chang, B. Milch, and S. Brin, “Query-free news search,”
in Proceedings of the 12th international conference on World Wide Web,
Budapest, Hungary, 2003.
ista: 'Henzinger MH, Chang B-W, Milch B, Brin S. 2003. Query-free news search. Proceedings
of the 12th international conference on World Wide Web. WWW: International Conference
on World Wide Web, 1–10.'
mla: Henzinger, Monika H., et al. “Query-Free News Search.” Proceedings of the
12th International Conference on World Wide Web, 1–10, Association for Computing
Machinery, 2003, doi:10.1145/775152.775154.
short: M.H. Henzinger, B.-W. Chang, B. Milch, S. Brin, in:, Proceedings of the 12th
International Conference on World Wide Web, Association for Computing Machinery,
2003.
conference:
end_date: 2003-05-24
location: Budapest, Hungary
name: 'WWW: International Conference on World Wide Web'
start_date: 2003-05-20
date_created: 2022-08-16T08:55:05Z
date_published: 2003-05-01T00:00:00Z
date_updated: 2023-02-21T16:32:40Z
day: '01'
doi: 10.1145/775152.775154
extern: '1'
language:
- iso: eng
month: '05'
oa_version: None
publication: Proceedings of the 12th international conference on World Wide Web
publication_identifier:
isbn:
- 978-158113680-7
publication_status: published
publisher: Association for Computing Machinery
quality_controlled: '1'
related_material:
record:
- id: '11904'
relation: later_version
status: public
scopus_import: '1'
status: public
title: Query-free news search
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2003'
...
---
_id: '11897'
abstract:
- lang: eng
text: "This paper addresses the problem of topic distillation on the World Wide
Web, namely, given a typical user query to find quality documents related to the
query topic. Connectivity analysis has been shown to be useful in identifying
high quality pages within a topic specific graph of hyperlinked documents. The
essence of our approach is to augment a previous connectivity analysis based algorithm
with content analysis. We identify three problems with the existing approach and
devise algorithms to tackle them. The results of a user evaluation are reported
that show an improvement of precision at 10\r\ndocuments by at least 45% over
pure connectivity analysis. "
article_processing_charge: No
author:
- first_name: Krishna
full_name: Bharat, Krishna
last_name: Bharat
- 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: 'Bharat K, Henzinger MH. Improved algorithms for topic distillation in a hyperlinked
environment. In: 21st Annual International ACM SIGIR Conference on Research
and Development in Information Retrieval. Association for Computing Machinery;
2003:104–111. doi:10.1145/290941.290972'
apa: 'Bharat, K., & Henzinger, M. H. (2003). Improved algorithms for topic distillation
in a hyperlinked environment. In 21st annual international ACM SIGIR conference
on Research and development in information retrieval (pp. 104–111). Melbourne,
Australia: Association for Computing Machinery. https://doi.org/10.1145/290941.290972'
chicago: Bharat, Krishna, and Monika H Henzinger. “Improved Algorithms for Topic
Distillation in a Hyperlinked Environment.” In 21st Annual International ACM
SIGIR Conference on Research and Development in Information Retrieval, 104–111.
Association for Computing Machinery, 2003. https://doi.org/10.1145/290941.290972.
ieee: K. Bharat and M. H. Henzinger, “Improved algorithms for topic distillation
in a hyperlinked environment,” in 21st annual international ACM SIGIR conference
on Research and development in information retrieval, Melbourne, Australia,
2003, pp. 104–111.
ista: 'Bharat K, Henzinger MH. 2003. Improved algorithms for topic distillation
in a hyperlinked environment. 21st annual international ACM SIGIR conference on
Research and development in information retrieval. SIGIR: International Conference
on Research and Development in Information Retrieval, 104–111.'
mla: Bharat, Krishna, and Monika H. Henzinger. “Improved Algorithms for Topic Distillation
in a Hyperlinked Environment.” 21st Annual International ACM SIGIR Conference
on Research and Development in Information Retrieval, Association for Computing
Machinery, 2003, pp. 104–111, doi:10.1145/290941.290972.
short: K. Bharat, M.H. Henzinger, in:, 21st Annual International ACM SIGIR Conference
on Research and Development in Information Retrieval, Association for Computing
Machinery, 2003, pp. 104–111.
conference:
end_date: 1998-08-28
location: Melbourne, Australia
name: 'SIGIR: International Conference on Research and Development in Information
Retrieval'
start_date: 1998-08-24
date_created: 2022-08-17T08:56:18Z
date_published: 2003-08-01T00:00:00Z
date_updated: 2023-02-17T14:47:44Z
day: '01'
doi: 10.1145/290941.290972
extern: '1'
language:
- iso: eng
month: '08'
oa_version: None
page: 104–111
publication: 21st annual international ACM SIGIR conference on Research and development
in information retrieval
publication_identifier:
isbn:
- 978-1-58113-015-7
issn:
- '01635840'
publication_status: published
publisher: Association for Computing Machinery
quality_controlled: '1'
scopus_import: '1'
status: public
title: Improved algorithms for topic distillation in a hyperlinked environment
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2003'
...
---
_id: '11909'
abstract:
- lang: eng
text: This article presents a high-level discussion of some problems that are unique
to web search engines. The goal is to raise awareness and stimulate research in
these areas.
article_processing_charge: No
author:
- first_name: Monika H
full_name: Henzinger, Monika H
id: 540c9bbd-f2de-11ec-812d-d04a5be85630
last_name: Henzinger
orcid: 0000-0002-5008-6530
- first_name: Rajeev
full_name: Motwani, Rajeev
last_name: Motwani
- first_name: Craig
full_name: Silverstein, Craig
last_name: Silverstein
citation:
ama: 'Henzinger MH, Motwani R, Silverstein C. Challenges in web search engines.
In: 18th International Joint Conference on Artificial Intelligence. Association
for Computing Machinery; 2003:1573-1579.'
apa: 'Henzinger, M. H., Motwani, R., & Silverstein, C. (2003). Challenges in
web search engines. In 18th International Joint Conference on Artificial Intelligence
(pp. 1573–1579). Acapulco, Mexico: Association for Computing Machinery.'
chicago: Henzinger, Monika H, Rajeev Motwani, and Craig Silverstein. “Challenges
in Web Search Engines.” In 18th International Joint Conference on Artificial
Intelligence, 1573–79. Association for Computing Machinery, 2003.
ieee: M. H. Henzinger, R. Motwani, and C. Silverstein, “Challenges in web search
engines,” in 18th International Joint Conference on Artificial Intelligence,
Acapulco, Mexico, 2003, pp. 1573–1579.
ista: 'Henzinger MH, Motwani R, Silverstein C. 2003. Challenges in web search engines.
18th International Joint Conference on Artificial Intelligence. IJCAI: International
Joint Conference on Artificial Intelligence, 1573–1579.'
mla: Henzinger, Monika H., et al. “Challenges in Web Search Engines.” 18th International
Joint Conference on Artificial Intelligence, Association for Computing Machinery,
2003, pp. 1573–79.
short: M.H. Henzinger, R. Motwani, C. Silverstein, in:, 18th International Joint
Conference on Artificial Intelligence, Association for Computing Machinery, 2003,
pp. 1573–1579.
conference:
end_date: 2003-08-15
location: Acapulco, Mexico
name: 'IJCAI: International Joint Conference on Artificial Intelligence'
start_date: 2003-08-09
date_created: 2022-08-18T06:40:02Z
date_published: 2003-08-01T00:00:00Z
date_updated: 2023-02-09T12:05:25Z
day: '01'
extern: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.ijcai.org/Proceedings/03/Papers/278.pdf
month: '08'
oa: 1
oa_version: Published Version
page: 1573-1579
publication: 18th International Joint Conference on Artificial Intelligence
publication_identifier:
issn:
- 1045-0823
publication_status: published
publisher: Association for Computing Machinery
quality_controlled: '1'
scopus_import: '1'
status: public
title: Challenges in web search engines
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2003'
...
---
_id: '3425'
alternative_title:
- Nato Science Series II
article_processing_charge: No
author:
- first_name: Mark Tobias
full_name: Bollenbach, Mark Tobias
id: 3E6DB97A-F248-11E8-B48F-1D18A9856A87
last_name: Bollenbach
orcid: 0000-0003-4398-476X
- first_name: T.
full_name: Strother, T.
last_name: Strother
- first_name: Wolfgang
full_name: Bauer, Wolfgang
last_name: Bauer
citation:
ama: 'Bollenbach MT, Strother T, Bauer W. 3D supernova collapse calculations. In:
Vol 166. Springer; 2003:277-288. doi:10.1007/978-1-4020-2705-5_21'
apa: Bollenbach, M. T., Strother, T., & Bauer, W. (2003). 3D supernova collapse
calculations (Vol. 166, pp. 277–288). Presented at the NATO ASI on Structure and
Dynamics of Elementary Matter, Springer. https://doi.org/10.1007/978-1-4020-2705-5_21
chicago: Bollenbach, Mark Tobias, T. Strother, and Wolfgang Bauer. “3D Supernova
Collapse Calculations,” 166:277–88. Springer, 2003. https://doi.org/10.1007/978-1-4020-2705-5_21.
ieee: M. T. Bollenbach, T. Strother, and W. Bauer, “3D supernova collapse calculations,”
presented at the NATO ASI on Structure and Dynamics of Elementary Matter, 2003,
vol. 166, pp. 277–288.
ista: Bollenbach MT, Strother T, Bauer W. 2003. 3D supernova collapse calculations.
NATO ASI on Structure and Dynamics of Elementary Matter, Nato Science Series II,
vol. 166, 277–288.
mla: Bollenbach, Mark Tobias, et al. 3D Supernova Collapse Calculations.
Vol. 166, Springer, 2003, pp. 277–88, doi:10.1007/978-1-4020-2705-5_21.
short: M.T. Bollenbach, T. Strother, W. Bauer, in:, Springer, 2003, pp. 277–288.
conference:
name: NATO ASI on Structure and Dynamics of Elementary Matter
date_created: 2018-12-11T12:03:16Z
date_published: 2003-01-01T00:00:00Z
date_updated: 2021-01-12T07:43:23Z
day: '01'
doi: 10.1007/978-1-4020-2705-5_21
extern: '1'
intvolume: ' 166'
language:
- iso: eng
month: '01'
oa_version: None
page: 277 - 288
publication_status: published
publisher: Springer
publist_id: '2976'
status: public
title: 3D supernova collapse calculations
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 166
year: '2003'
...
---
_id: '3458'
author:
- first_name: Peter M
full_name: Peter Jonas
id: 353C1B58-F248-11E8-B48F-1D18A9856A87
last_name: Jonas
orcid: 0000-0001-5001-4804
- first_name: Klaus
full_name: Unsicker, Klaus
last_name: Unsicker
citation:
ama: 'Jonas PM, Unsicker K. Molekulare und zelluläre Grundlagen des Nervensystems.
In: Schmidt R, ed. Lehrbuch Vorklinik. Vol B. Deutscher Ärzte Verlag; 2003:3-26.'
apa: Jonas, P. M., & Unsicker, K. (2003). Molekulare und zelluläre Grundlagen
des Nervensystems. In R. Schmidt (Ed.), Lehrbuch Vorklinik (Vol. B, pp.
3–26). Deutscher Ärzte Verlag.
chicago: Jonas, Peter M, and Klaus Unsicker. “Molekulare Und Zelluläre Grundlagen
Des Nervensystems.” In Lehrbuch Vorklinik, edited by R. Schmidt, B:3–26.
Deutscher Ärzte Verlag, 2003.
ieee: P. M. Jonas and K. Unsicker, “Molekulare und zelluläre Grundlagen des Nervensystems.,”
in Lehrbuch Vorklinik, vol. B, R. Schmidt, Ed. Deutscher Ärzte Verlag,
2003, pp. 3–26.
ista: 'Jonas PM, Unsicker K. 2003.Molekulare und zelluläre Grundlagen des Nervensystems.
In: Lehrbuch Vorklinik. vol. B, 3–26.'
mla: Jonas, Peter M., and Klaus Unsicker. “Molekulare Und Zelluläre Grundlagen Des
Nervensystems.” Lehrbuch Vorklinik, edited by R. Schmidt, vol. B, Deutscher
Ärzte Verlag, 2003, pp. 3–26.
short: P.M. Jonas, K. Unsicker, in:, R. Schmidt (Ed.), Lehrbuch Vorklinik, Deutscher
Ärzte Verlag, 2003, pp. 3–26.
date_created: 2018-12-11T12:03:26Z
date_published: 2003-01-01T00:00:00Z
date_updated: 2021-01-12T07:43:35Z
day: '01'
editor:
- first_name: R.
full_name: Schmidt, R. F.
last_name: Schmidt
extern: 1
month: '01'
page: 3 - 26
publication: Lehrbuch Vorklinik
publication_status: published
publisher: Deutscher Ärzte Verlag
publist_id: '2929'
quality_controlled: 0
status: public
title: Molekulare und zelluläre Grundlagen des Nervensystems.
type: book_chapter
volume: B
year: '2003'
...
---
_id: '3526'
abstract:
- lang: eng
text: Neurons can produce action potentials with high temporal precision(1). A fundamental
issue is whether, and how, this capability is used in information processing.
According to the `cell assembly' hypothesis, transient synchrony of anatomically
distributed groups of neurons underlies processing of both external sensory input
and internal cognitive mechanisms(2-4). Accordingly, neuron populations should
be arranged into groups whose synchrony exceeds that predicted by common modulation
by sensory input. Here we find that the spike times of hippocampal pyramidal cells
can be predicted more accurately by using the spike times of simultaneously recorded
neurons in addition to the animals location in space. This improvement remained
when the spatial prediction was refined with a spatially dependent theta phase
modulation(5-8). The time window in which spike times are best predicted from
simultaneous peer activity is 10-30 ms, suggesting that cell assemblies are synchronized
at this timescale. Because this temporal window matches the membrane time constant
of pyramidal neurons(9), the period of the hippocampal gamma oscillation(10) and
the time window for synaptic plasticity(11), we propose that cooperative activity
at this timescale is optimal for information transmission and storage in cortical
circuits.
author:
- first_name: Kenneth
full_name: Harris, Kenneth D
last_name: Harris
- first_name: Jozsef L
full_name: Jozsef Csicsvari
id: 3FA14672-F248-11E8-B48F-1D18A9856A87
last_name: Csicsvari
orcid: 0000-0002-5193-4036
- first_name: Hajima
full_name: Hirase, Hajima
last_name: Hirase
- first_name: George
full_name: Dragoi, George
last_name: Dragoi
- first_name: György
full_name: Buzsáki, György
last_name: Buzsáki
citation:
ama: Harris K, Csicsvari JL, Hirase H, Dragoi G, Buzsáki G. Organization of cell
assemblies in the hippocampus. Nature. 2003;424(6948):552-556. doi:0.1038/nature01834
apa: Harris, K., Csicsvari, J. L., Hirase, H., Dragoi, G., & Buzsáki, G. (2003).
Organization of cell assemblies in the hippocampus. Nature. Nature Publishing
Group. https://doi.org/0.1038/nature01834
chicago: Harris, Kenneth, Jozsef L Csicsvari, Hajima Hirase, George Dragoi, and
György Buzsáki. “Organization of Cell Assemblies in the Hippocampus.” Nature.
Nature Publishing Group, 2003. https://doi.org/0.1038/nature01834.
ieee: K. Harris, J. L. Csicsvari, H. Hirase, G. Dragoi, and G. Buzsáki, “Organization
of cell assemblies in the hippocampus,” Nature, vol. 424, no. 6948. Nature
Publishing Group, pp. 552–556, 2003.
ista: Harris K, Csicsvari JL, Hirase H, Dragoi G, Buzsáki G. 2003. Organization
of cell assemblies in the hippocampus. Nature. 424(6948), 552–556.
mla: Harris, Kenneth, et al. “Organization of Cell Assemblies in the Hippocampus.”
Nature, vol. 424, no. 6948, Nature Publishing Group, 2003, pp. 552–56,
doi:0.1038/nature01834.
short: K. Harris, J.L. Csicsvari, H. Hirase, G. Dragoi, G. Buzsáki, Nature 424 (2003)
552–556.
date_created: 2018-12-11T12:03:47Z
date_published: 2003-07-31T00:00:00Z
date_updated: 2021-01-12T07:44:04Z
day: '31'
doi: 0.1038/nature01834
extern: 1
intvolume: ' 424'
issue: '6948'
month: '07'
page: 552 - 556
publication: Nature
publication_status: published
publisher: Nature Publishing Group
publist_id: '2859'
quality_controlled: 0
status: public
title: Organization of cell assemblies in the hippocampus
type: journal_article
volume: 424
year: '2003'
...