Results 1 to 10 of about 21,456,101 (165)

Current Direct Neutrino Mass Experiments [PDF]

open access: yes, 2013
In this contribution, we review the status and perspectives of direct neutrino mass experiments, which investigate the kinematics of -decays of specific isotopes (3H, 187Re, 163Ho) to derive model-independent information on the averaged electron (
G. Drexlin   +3 more
semanticscholar   +1 more source

Novel Way to Search for Light Dark Matter in Lepton Beam-Dump Experiments. [PDF]

open access: yesPhysical Review Letters, 2018
A novel mechanism to produce and detect light dark matter in experiments making use of GeV electrons (and positrons) impinging on a thick target (beam dump) is proposed.
L. Marsicano   +10 more
semanticscholar   +1 more source

Dark photon production through positron annihilation in beam-dump experiments [PDF]

open access: yesPhysical Review D, 2018
High energy positron annihilation is a viable mechanism to produce dark photons ($A^\prime$). This reaction plays a significant role in beam-dump experiments using experiments using multi-GeV electron-beams on thick targets by enhancing the sensitivity ...
L. Marsicano   +9 more
semanticscholar   +1 more source

Timomas malignos – A experiência do IPO do Porto e revisão da literatura

open access: yesRevista Portuguesa de Pneumologia, 2007
AbstractIntroduction: Epithelial thymic tumours (ETT), which comprise the majority of thymomas, are neoplasias developed from the epithelial cells of the thymus and constitute around 30% of anterior mediastinal masses in adults. Thymomas consist of cells with no cytological characteristics of malignity; malignant behaviour is determined by invasion of ...
Sousa, Berta   +5 more
openaire   +4 more sources

Decoding by linear programming [PDF]

open access: yesIEEE Transactions on Information Theory, 2005
This paper considers a natural error correcting problem with real valued input/output. We wish to recover an input vector f/spl isin/R/sup n/ from corrupted measurements y=Af+e.
E. Candès, T. Tao
semanticscholar   +1 more source

Practical Experience of Managing the Distributed E-Learning System «SPIDER» in the Preparation of Students of the Faculty of Economics and Finance at the North-West Institute of Management, Branch of RANEPA

open access: yesAdministrative consulting, 2019
We consider examines the place and role of E-learning in the Internet economy, the nature and features of the distributed system of E-learning, the practical experience of the managing of distributed E-learning system on the example of DELS “SPIDER”. This system is used in the preparation of students of the faculty of Economics and Finance at the North-
Tatyana Vasilyeva, Alexey Isaev
openaire   +4 more sources

Inactivation of Antibiotic Resistant Bacteria and Resistance Genes by Ozone: From Laboratory Experiments to Full-Scale Wastewater Treatment.

open access: yesEnvironmental Science and Technology, 2016
Ozone, a strong oxidant and disinfectant, seems ideal to cope with future challenges of water treatment, such as micropollutants, multiresistant bacteria (MRB) and even intracellular antibiotic resistance genes (ARG), but information on the latter is ...
Nadine Czekalski   +8 more
semanticscholar   +1 more source

Fine Structure Constant Defines Visual Transparency of Graphene [PDF]

open access: yesScience, 2008
There are few phenomena in condensed matter physics that are defined only by the fundamental constants and do not depend on material parameters. Examples are the resistivity quantum, h/e2 (h is Planck's constant and e the electron charge), that appears ...
R. Nair   +7 more
semanticscholar   +1 more source

Inequality Aversion, Efficiency, and Maximin Preferences in Simple Distribution Experiments

open access: yes, 2002
We present simple one-shot distribution experiments comparing the relative importance of efficiency concerns, maximin preferences, and inequality aversion, as well as the relative performance of the fairness theories by Gary E Bolton and Axel Ockenfels ...
Dirk Engelmann, Martin Strobel
semanticscholar   +1 more source

Quantifying E. coli Proteome and Transcriptome with Single-Molecule Sensitivity in Single Cells

open access: yesScience, 2010
Devil in the Detail Genetically identical cells in the same environment can show variation in gene expression that may cause phenotypic variation at the single-cell level. But how noisy are most genes? Taniguchi et al. (p.
T. Petersen   +11 more
semanticscholar   +1 more source

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