Search results for "DMA"
showing 10 items of 315 documents
Supporting a Pseudo-TDMA Access Scheme in Mesh Wireless Networks
2013
Wireless mesh networks appear a promising solution for pro- viding ubiquitous low-cost wireless access, but cannot rely on simple CSMA access protocols because of the critical inefficiencies that arise in topologies with hidden nodes. To overcome these limitations, some important protocol extensions based on synchronization and reservation mechanisms have been ratified. In this paper we show that an alternative approach to the standardiza- tion of new features and signaling messages for mesh networks can be the utilization of programmable nodes able to execute different MAC protocols programmed on the fly. Signaling messages are used only for disseminating the new protocol among the nodes. …
"Table 5" of "Determination of $alpha_{s}$ in second order {QCD} from hadronic $Z$ decays"
1992
Difference of the heavy and light jet mass.
Volejbols Latvijas Universitātē
2019
2019. gadā, sagaidot augstskolas 100. jubileju, Latvijas Universitātes Bibliotēka izveidoja virtuālo izstādi “Pēc mirkļa 100 gadi: LU Sports”. Publikācija “Volejbols Latvijas Universitātē” izstrādāta apkopojot šīs izstādes materiālus un veltīta vienam no sporta veidiem – volejbolam. Rakstā atspoguļota volejbola attīstība no LU dibināšanas 1919. gadā līdz 2018.gadam, aprakstot būtiskākos sasniegumus un ievērojamākos sportistus.
Étude expérimentale d'un système hybride WDM/DS-OCDMA pour un réseau d'accès optique haut-débit
2008
National audience; Nous présentons une solution hybride WDM/DS-OCDMA pour l'application réseau d'accès optique haut-débit.
Iron metabolism markers and l-arginine derivatives in coronary artery disease : highlighting, assessment and role of oxidative stress in acute myocar…
2015
Myocardial infarction (MI) is mostly caused by complications of atherosclerosis, whose the development would be initiated by a dysfunction of the vascular endothelium, characterized by an inflammatory condition and oxidative stress.In this pathogenesis, iron interacts at different levels and also has a major role in the development of endothelial dysfunction. Hepcidin and erythroferrone (discovered earlier as the myonectin/CTRP 15) participate in a major way in regulating certain stages of iron metabolism.Asymmetric dimethylarginine (ADMA), a marker of endothelial dysfunction is associated with most cardiovascular risk factors. Symmetrical dimethyl-arginine (SDMA), its stereoisomer, has an …
L’ordinaire de la littérature. Des bénéfices pragmatistes dans les études littéraires
2008
International audience; This paper tries to examine why pragmatism, though often evoked and used in numerous academic fields, has had very little influence on French literary studies. To explain such a fact, the authors lay emphasis on the way the concept of literature was coined from romantic and structuralist elements in the French context. Doing so, they also suggest a few insights about what pragmatism could bring to literary studies and criticism, especially concerning the uses of literature, and its cognitive powers.; En dépit du reflux du structuralisme, la littérature continue d’être appréhendée à travers un prisme théorique d’obédience post-romantique, qui occulte son interaction a…
On improving the accuracy of Visible Light Positioning system using deep autoencoder
2020
International audience; DC-biased optical Orthogonal Frequency DivisionMultiplexing (DCO-OFDM)-based visible light positioning (VLP)technology along with the Received Signal Strength(RSS) po-sitioning algorithm is widely used to achieve centimeter levelpositioning accuracy for incoming 5G era, especially indoorenvironment. However, the DCO-OFDM has the peak-to-averagepower ratio (PAPR) issue which imposes the nonlinear distortionand it will directly affect the positioning accuracy in the VLPsystem. The PAPR reduction scheme is urgently needed. There-fore, in this paper, the impact of PAPR reduction scheme onpositioning accuracy is investigated. The positioning accuracywith and without the s…
Implicación del sistema serotoninérgico y dopaminérgico en los efectos reforzantes de la MDMA
2012
La adolescencia constituye un periodo de especial vulnerabilidad al consumo de drogas, siendo los adolescentes los principales consumidores de 3,4- metilendioximetanfetamina (MDMA), un derivado anfetamínico con potencial adictivo. El objetivo del presente trabajo es evaluar el papel de los sistemas dopaminérgico y serotoninérgico en las propiedades reforzantes de la MDMA y en la vulnerabilidad a la recaída en su consumo. En concreto, hemos estudiado la implicación de estos sistemas de neurotransmisión en la adquisición, expresión y reinstauración del condicionamiento de preferencia de lugar (CPL) inducido por MDMA en ratones adolescentes. Para ello utilizamos diferentes agonistas y antagoni…
Temari de Farmacologia Ocular per al Grau d'Òptica i Optometria (part teòrica, 12 temes; curs 2019-2020)
2019
El document forma part dels materials docents programats mitjançant l'ajut del Servei de Política Lingüística de la Universitat de València. Tema 1. Principis generals De Farmacologia 1.1. Assajos clínics, Farmacovigilància, normativa legal de la utilització dels fàrmacs per L’òptic-optometrista 1.2. Farmacocinètica 1.3. Vies d’administració dels fàrmacs. Administració dels fàrmacs en l’ull 1.4. Mecanisme d’acció dels fàrmacs Tema 2. Fàrmacs midriàtics i miòtics Tema 3. Fàrmacs antiglaucomatosos Tema 4. Fàrmacs antibiòtics i antivirals Tema 5. Fàrmacs antiinflamatoris, analgèsics i antial·lèrgics Tema 6. Fàrmacs lubricants de la superfície ocular Tema 7. Anestèsics locals Tema 8. Fàrmacs ut…