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Institution

Aix-Marseille University

EducationMarseille, France
About: Aix-Marseille University is a education organization based out in Marseille, France. It is known for research contribution in the topics: Population & Galaxy. The organization has 24326 authors who have published 54240 publications receiving 1455416 citations. The organization is also known as: University Aix-Marseille & université d'Aix-Marseille.


Papers
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Journal ArticleDOI
TL;DR: This exhibition celebrates the 50th anniversary of the publication of the first book of this kind to be published in the United States, edited by David N. Louis and written by Andreas von Deimling.
Abstract: Daniel J. Brat1 · Kenneth Aldape2 · Howard Colman3 · Dominique Figrarella‐Branger4 · Gregory N. Fuller5 · Caterina Giannini6 · Eric C. Holland7 · Robert B. Jenkins6 · Bette Kleinschmidt‐DeMasters8 · Takashi Komori9 · Johan M. Kros10 · David N. Louis11 · Catriona McLean12 · Arie Perry13 · Guido Reifenberger14,15 · Chitra Sarkar16 · Roger Stupp17 · Martin J. van den Bent18 · Andreas von Deimling19,20 · Michael Weller21

303 citations

Journal ArticleDOI
TL;DR: It is demonstrated that nanospace engineering of KOH activated carbon is possible by controlling the degree of carbon consumption and metallic potassium intercalation into the carbon lattice during the activation process, and how to control the number of supra-nanometer pores in a manner not achieved previously by chemical activation.
Abstract: This paper demonstrates that nanospace engineering of KOH activated carbon is possible by controlling the degree of carbon consumption and metallic potassium intercalation into the carbon lattice during the activation process. High specific surface areas, porosities, sub-nanometer (<1 nm) and supra-nanometer (1-5 nm) pore volumes are quantitatively controlled by a combination of KOH concentration and activation temperature. The process typically leads to a bimodal pore size distribution, with a large, approximately constant number of sub-nanometer pores and a variable number of supra-nanometer pores. We show how to control the number of supra-nanometer pores in a manner not achieved previously by chemical activation. The chemical mechanism underlying this control is studied by following the evolution of elemental composition, specific surface area, porosity, and pore size distribution during KOH activation and preceding H(3)PO(4) activation. The oxygen, nitrogen, and hydrogen contents decrease during successive activation steps, creating a nanoporous carbon network with a porosity and surface area controllable for various applications, including gas storage. The formation of tunable sub-nanometer and supra-nanometer pores is validated by sub-critical nitrogen adsorption. Surface functional groups of KOH activated carbon are studied by microscopic infrared spectroscopy.

303 citations

Journal ArticleDOI
TL;DR: It is found that the polysome association of miR168 was lost in ago1 but maintained in 2b plants, indicating that translational repression is correlated with the presence of miRNAs and AGO1 in polysomes, which provides direct biochemical evidence for a translational component in the plant miRNA pathway.
Abstract: MicroRNAs (miRNAs) regulate gene expression posttranscriptionally through RNA silencing, a mechanism conserved in eukaryotes. Prevailing models entail most animal miRNAs affecting gene expression by blocking mRNA translation and most plant miRNAs, triggering mRNA cleavage. Here, using polysome fractionation in Arabidopsis thaliana, we found that a portion of mature miRNAs and ARGONAUTE1 (AGO1) is associated with polysomes, likely through their mRNA target. We observed enhanced accumulation of several distinct miRNA targets at both the mRNA and protein levels in an ago1 hypomorphic mutant. By contrast, translational repression, but not cleavage, persisted in transgenic plants expressing the slicing-inhibitor 2b protein from Cucumber mosaic virus. In agreement, we found that the polysome association of miR168 was lost in ago1 but maintained in 2b plants, indicating that translational repression is correlated with the presence of miRNAs and AGO1 in polysomes. This work provides direct biochemical evidence for a translational component in the plant miRNA pathway.

303 citations

Journal ArticleDOI
Georges Aad1, T. Abajyan2, Brad Abbott3, Jalal Abdallah4  +2885 moreInstitutions (169)
TL;DR: In this article, the electron reconstruction and identification efficiencies of the ATLAS detector at the LHC have been evaluated using proton-proton collision data collected in 2011 at TeV and corresponding to an integrated luminosity of 4.7 fb.
Abstract: Many of the interesting physics processes to be measured at the LHC have a signature involving one or more isolated electrons. The electron reconstruction and identification efficiencies of the ATLAS detector at the LHC have been evaluated using proton-proton collision data collected in 2011 at TeV and corresponding to an integrated luminosity of 4.7 fb. Tag-and-probe methods using events with leptonic decays of and bosons and mesons are employed to benchmark these performance parameters. The combination of all measurements results in identification efficiencies determined with an accuracy at the few per mil level for electron transverse energy greater than 30 GeV.

302 citations


Authors

Showing all 24784 results

NameH-indexPapersCitations
Didier Raoult1733267153016
Andrea Bocci1722402176461
Marc Humbert1491184100577
Carlo Rovelli1461502103550
Marc Besancon1431799106869
Jian Yang1421818111166
Josh Moss139101989255
Maksym Titov1391573128335
Bernard Henrissat139593100002
R. D. Kass1381920107907
Stylianos E. Antonarakis13874693605
Jean-Paul Kneib13880589287
Brad Abbott137156698604
Shu Li136100178390
Georges Aad135112188811
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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
2023170
2022748
20215,607
20205,697
20195,288
20185,125