scispace - formally typeset
Search or ask a question
Institution

Université libre de Bruxelles

EducationBrussels, Belgium
About: Université libre de Bruxelles is a education organization based out in Brussels, Belgium. It is known for research contribution in the topics: Population & Breast cancer. The organization has 24974 authors who have published 56969 publications receiving 2084303 citations. The organization is also known as: ULB.


Papers
More filters
Journal ArticleDOI
TL;DR: In this paper, a search for new physics in multijet events with large missing transverse momentum produced in proton-proton collisions at 8 TeV using a data sample corresponding to an integrated luminosity of 19.5 inverse femtobarns collected with the CMS detector at the LHC.
Abstract: A search for new physics is performed in multijet events with large missing transverse momentum produced in proton-proton collisions at sqrt(s)=8 TeV using a data sample corresponding to an integrated luminosity of 19.5 inverse femtobarns collected with the CMS detector at the LHC. The data sample is divided into three jet multiplicity categories (3-5, 6-7, and 8 or more jets), and studied further in bins of two variables: the scalar sum of jet transverse momenta and the missing transverse momentum. The observed numbers of events in various categories are consistent with backgrounds expected from standard model processes. Exclusion limits are presented for several simplified supersymmetric models of squark or gluino pair production.

319 citations

Book ChapterDOI
TL;DR: This chapter discusses the action of thyrotropin on thyroid metabolism, which involves the formation of thyroid hormones from iodide and tyrosines and the secretion of these hormones, and induces, after a delay, the growth of thyroid tissue.
Abstract: Publisher Summary This chapter discusses the action of thyrotropin on thyroid metabolism. Growth and function of the thyroid are mainly controlled by the level of thyrotropin (TSH) concentration in the plasma. The principal element of this control, the action of TSH on its target, the thyroid follicular cell, has been investigated intensively during recent years. TSH activates rapidly the steps of thyroidal iodine metabolism—that is, the formation of thyroid hormones from iodide and tyrosines and the secretion of these hormones, and induces, after a delay, the growth of thyroid tissue. Among the various systems available for the study of the interaction of a tropic hormone with its target cell, the thyroid and TSH present several advantages and disadvantages. The specialized metabolism of the follicular cell, the metabolism of iodine, is easily studied with the various radioisotopes of iodine. Thyroid tissue is very resistant to adverse conditions, which explains the great stability and the great variety of in vitro thyroid systems.

319 citations

Journal ArticleDOI
TL;DR: This document is not intended to provide evidence for each recommendation as review of pertinent studies have recently been comprehensively summarized in the Clinical Research Directions on “Testosterone and Aging” by the Institute of Medicine (Washington 2004).
Abstract: *Corresponding Author Androgen deficiency in the aging male has become a topic of increasing interest and debate throughout the world. The demographics clearly demonstrate the increasing percentage of the population that is in the older age groups. The data also support the concept that testosterone falls progressively with age and that a significant percentage of men over the age of 60 years have serum testosterone levels that are below the lower limits of young adults (age 20-30 years) men. The principal questions raised by these observations are whether older hypogonadal men will benefit from testosterone treatment and what will be the risks associated with such intervention. The past decade has brought evidence of benefit of androgen treatment on multiple target organs of hypogonadal men and recent studies show short-term beneficial effects of testosterone in older men that are similar to those in younger men. Long-term data on the effects of testosterone treatment in the older population are limited and specific risk data on the prostate and cardiovascular systems are needed. Answers to key questions of functional benefits that may retard frailty of the elderly are not yet available. The recommendations described below were prepared for the International Society of Andrology (ISA) and the International Society for the Study of the Aging Male (ISSAM) following a panel discussion with active participation from the audience sponsored by the ISA on the topic at the 4th ISSAM Congress in Prague in February 2004. The ISA Member Societies were requested to comment on the draft recommedations. Representatives of the European Association of Urology (EAU) participated in the final draft of this document. This document is not intended to provide evidence for each recommendation as review of pertinent studies have recently been comprehensively summarized in the Clinical Research Directions on “Testosterone and Aging” by the Institute of Medicine (Washington 2004). The recommendations will be subject to revision as larger-scale and longer-term data become available. In order to reach a large audience these recommendations are published in the International Journal of Andrology,the Journal of Andrology, The Aging Male and in European Urology. E Nieschlag * Institute of Reproductive Medicine University of Münster, Germany Email: eberhard.nieschlag@ukmuenster.de

319 citations

Journal ArticleDOI
TL;DR: Swarm-bot qualifies as the current state of the art in autonomous self-assembly in distributed robotics.
Abstract: In this paper, we discuss the self-assembling capabilities of the swarm-bot, a distributed robotics concept that lies at the intersection between collective and self-reconfigurable robotics. A swarm-bot is comprised of autonomous mobile robots called s-bots. S-bots can either act independently or self-assemble into a swarm-bot by using their grippers. We report on experiments in which we study the process that leads a group of s-bots to self-assemble. In particular, we present results of experiments in which we vary the number of s-bots (up to 16 physical robots), their starting configurations, and the properties of the terrain on which self-assembly takes place. In view of the very successful experimental results, swarm-bot qualifies as the current state of the art in autonomous self-assembly

319 citations

Posted Content
TL;DR: In this paper, the interaction between aggregate efficiency, corruption, and other dimensions of governance for a panel of 54 countries both developed and developing was analyzed by using three measures of corruption and five other aspects of governance.
Abstract: This paper tests whether corruption can be viewed as an efficient grease in the wheels of an otherwise deficient institutional framework. It does so by analyzing the interaction between aggregate efficiency, corruption, and other dimensions of governance for a panel of 54 countries both developed and developing. Using three measures of corruption and five measures of other aspects of governance, we repeatedly observe that corruption is always detrimental in countries where institutions are effective, but that it may be positively associated with efficiency in countries where institutions are ineffective. We thus find evidence of the grease the wheels hypothesis.

319 citations


Authors

Showing all 25206 results

NameH-indexPapersCitations
Karl J. Friston2171267217169
Yi Chen2174342293080
David Miller2032573204840
Jing Wang1844046202769
H. S. Chen1792401178529
Jie Zhang1784857221720
Jasvinder A. Singh1762382223370
D. M. Strom1763167194314
J. N. Butler1722525175561
Andrea Bocci1722402176461
Bradley Cox1692150156200
Marc Weber1672716153502
Hongfang Liu1662356156290
Guenakh Mitselmakher1651951164435
Yang Yang1642704144071
Network Information
Related Institutions (5)
University of Paris
174.1K papers, 5M citations

96% related

Utrecht University
139.3K papers, 6.2M citations

93% related

University of Amsterdam
140.8K papers, 5.9M citations

93% related

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

93% related

Sapienza University of Rome
155.4K papers, 4.3M citations

93% related

Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
2023119
2022411
20213,194
20203,051
20192,751
20182,609