scispace - formally typeset
Search or ask a question
Institution

University of Geneva

EducationGeneva, Switzerland
About: University of Geneva is a education organization based out in Geneva, Switzerland. It is known for research contribution in the topics: Population & Planet. The organization has 26887 authors who have published 65265 publications receiving 2931373 citations. The organization is also known as: Geneva University & Universite de Geneve.
Topics: Population, Planet, Galaxy, Exoplanet, Stars


Papers
More filters
Journal ArticleDOI
TL;DR: A dynamic model for hand hygiene research and education strategies is proposed, together with corresponding indications forHand hygiene during patient care, and five sequential steps are reviewed.
Abstract: Hand cleansing is the primary action to reduce health-care-associated infection and cross-transmission of antimicrobial-resistant pathogens. Patient-to-patient transmission of pathogens via health-care workers' hands requires five sequential steps: (1) organisms are present on the patient's skin or have been shed onto fomites in the patient's immediate environment; (2) organisms must be transferred to health-care workers' hands; (3) organisms must be capable of surviving on health-care workers' hands for at least several minutes; (4) handwashing or hand antisepsis by the health-care worker must be inadequate or omitted entirely, or the agent used for hand hygiene inappropriate; and (5) the caregiver's contaminated hand(s) must come into direct contact with another patient or with a fomite in direct contact with the patient. We review the evidence supporting each of these steps and propose a dynamic model for hand hygiene research and education strategies, together with corresponding indications for hand hygiene during patient care.

711 citations

Journal ArticleDOI
26 Jan 2012-Nature
TL;DR: By quenching a one-dimensional quantum gas in an optical lattice, it is revealed how quasiparticle pairs transport correlations with a finite velocity across the system, resulting in an effective light cone for the quantum dynamics.
Abstract: In relativistic quantum field theory, information propagation is bounded by the speed of light. No such limit exists in the non-relativistic case, although in real physical systems, short-range interactions may be expected to restrict the propagation of information to finite velocities. The question of how fast correlations can spread in quantum many-body systems has been long studied. The existence of a maximal velocity, known as the Lieb-Robinson bound, has been shown theoretically to exist in several interacting many-body systems (for example, spins on a lattice)--such systems can be regarded as exhibiting an effective light cone that bounds the propagation speed of correlations. The existence of such a 'speed of light' has profound implications for condensed matter physics and quantum information, but has not been observed experimentally. Here we report the time-resolved detection of propagating correlations in an interacting quantum many-body system. By quenching a one-dimensional quantum gas in an optical lattice, we reveal how quasiparticle pairs transport correlations with a finite velocity across the system, resulting in an effective light cone for the quantum dynamics. Our results open perspectives for understanding the relaxation of closed quantum systems far from equilibrium, and for engineering the efficient quantum channels necessary for fast quantum computations.

710 citations

Journal ArticleDOI
TL;DR: A new ligand in the tumor necrosis factor family is described, designated TWEAK, which resembles many other TNF ligands in the capacity to induce cell death; however, the fact that TWEak-sensitive cells are relatively rare suggests that T WEAK along with lymphotoxins α/β and possibly CD30L trigger death via a weaker, nondeath domain-dependent mechanism.

708 citations

Journal ArticleDOI
27 Dec 2002-Cell
TL;DR: The mammalian circadian timing system is composed of almost as many individual clocks as there are cells, and these countless oscillators have to be synchronized by a central pacemaker to coordinate temporal physiology and behavior.

707 citations


Authors

Showing all 27203 results

NameH-indexPapersCitations
JoAnn E. Manson2701819258509
Joseph L. Goldstein207556149527
Kari Stefansson206794174819
David Baltimore203876162955
Mark I. McCarthy2001028187898
Michael S. Brown185422123723
Yang Gao1682047146301
Napoleone Ferrara167494140647
Marc Weber1672716153502
Alessandro Melchiorri151674116384
Andrew D. Hamilton1511334105439
David P. Strachan143472105256
Andrew Beretvas1411985110059
Rainer Wallny1411661105387
Josh Moss139101989255
Network Information
Related Institutions (5)
Max Planck Society
406.2K papers, 19.5M citations

93% related

University of Oxford
258.1K papers, 12.9M citations

93% related

University College London
210.6K papers, 9.8M citations

93% related

Centre national de la recherche scientifique
382.4K papers, 13.6M citations

93% related

Yale University
220.6K papers, 12.8M citations

93% related

Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
2023171
2022520
20214,280
20204,142
20193,580
20183,395