Search results for "pOR"

The (im)possible success of disadvantaged students. Reflections on education, migration and social change

2019

The paper focuses on the ?unexpected pathways? of successful students with an immigrant background: these biographical routes, that seems socially impossible, raise theoretical issues around the individual-society, actor-structure relationship. Disadvantaged students who succeed represent a sociological challenge in the attempt to understand atypical situations and to identify the institutional processes and the structural opportunities that facilitate them, reducing ethnic inequalities in education. This framework is the starting point of the Su.Per. project (Success in educational pathways of students with immigrant background), based on the collection of written autobiographies of 65 imm…

Thiazolium salts as catalysts for etherification reaction

2014

Simulation studies of electronic transport in a-Si:H thin film solar cells

2009

The thin film solar cells in Hydrogenated Amorphous Silicon (a-Si:H) are attractive for cheaper production and used in ultra low cost, high volume applications but have a relatively lower electronic performance. These limitations are mainly due to properties of the a-Si:H and relies on the production technique. In this study we investigate the physical mechanisms which are on the basis of the electronic transport and their relation with the technological processes. The transport-simulation computer program ATLAS (Silvaco) has been used to examine the role of the mid gap defect density in determining the performance of a-Si:H p-i-n homojunction solar cell.

Porous Anodic Alumina proton conductors composites for H2/O2 thin film fuel cell

2009

Implementing the 3-omega technique for thermal conductivity measurements

2013

Thermal conductivity of the constituent materials is one of the most important properties affecting the performance of micro- and nanofabricated devices. These devices often make use of thin films with thicknesses ranging from some nanometers to few micrometers. The thermal conductivity of thin films can be measured with the three-omega method. In three-omega technique a metal wire acting as a resistive heater is microfabricated on the sample. Alternating current passing through the metal heater at a frequency ω heats the sample periodically and generates oscillations in the resistance of the metal line at a frequency 2ω. The oscillating resistance component is coupled with the driving curr…

Rhizoctonia solani AG5 and Its Offspring – Morphology and Sensitivity to Fungicides

2022

The objective of these studies was to identify differences and similarities within the progeny of Rhizoctonia solani AG5, which arose from basidiospores produced by the maternal strain ID23. The following characteristics were analyzed: appearance of the mycelium (color, structure, zonation, and presence of sclerotia), growth rate (at 10°C, 20°C, and 30°C), fungicide sensitivity, and hyphal structure. The mycelial color of R. solani AG5 ranged from white/cream to light and dark brown. The structure of the mycelium may be compacted or flattened with visible zoning or fluffy with dark brown sclerotia on the colony surface. Homokaryons and heterokaryons derived from homokaryons were analyzed by…

Can adjunctive corticosteroid therapy improve patient-centered outcomes following third molar surgery? A systematic review

2021

Third molar surgery is frequently associated with postoperative discomfort such as pain, edema and trismus. We aimed to evaluate the current evidence on the efficacy of adjunctive corticosteroid therapy in improving patient-centered outcomes following third molar surgery.This systematic review assessed and searched PubMed, Google scholar, Scopus, web of science, clinicaltrials.gov and Cochrane central for controlled trials, up to May 2021. The primary outcome measures were patient-centered outcomes such as quality of life following the use of adjunctive corticosteroid therapy in third molar removal. Only randomized controlled trials published in English language were included.A total of 355…

Thrombolysis Followed by Apixaban for Massive Pulmonary Embolism and Free-floating Thrombus in Right Ventricle in a Patient with Breast Cancer

2018

Free-floating thrombus in the right ventricle, associated with a massive acute pulmonary embolism (PE), is a rare phenomenon. PE is an important clinical entity with considerable mortality despite advances in diagnosis and treatment. The prognosis of PE depends on right ventricular dysfunction, myocardial injury markers, and early treatment. In this report, we present the case of a 71-year-old woman with a history of breast cancer admitted to intensive care unit for PE complicated by syncope. Although our case may seem complex because it is not represented in the guidelines, the result was satisfactory and showed how treatment with new anticoagulants (in this case apixaban) after massive th…

Proportions. Science, Musique, Peinture et Architecture

2012

Le langage des proportions est un langage de comparaison. Outil scientifique, il met en relation grandeurs mathématiques ou physiques (deux cercles, deux mouvements, deux sons, etc.). Pour autant, son application ne se restreint pas au seul champ des mathématiques. Erigé en principe philosophique par le principe de comparaison qui le sous-tend, il déploie tout son potentiel analogique en devenant langage constructeur d'harmonie. La théorie des proportions s'ouvre ainsi sur un vaste champ de relations qui définissent canons et règles de beauté dans les diverses disciplines artistiques. S'intéresser aux proportions signifie donc s'intéresser à tous les domaines du savoir. Mais comment aborder…

Séries temporelles et flou

1982

La compréhension de la nature du temps, et de son écoulement, est un problème qui a toujours préoccupé les hommes L'idée que l'on se fait du temps est elle-même discutable et discutée, et pas seulement par les philosophes. Tout agent, dans l'activité qu'il déploie est amené à se poser, même implicitement, cette question. En effet, le temps nous est compté. Toute action doit le prendre en considération. La valeur des produits humains en dépend. Il faut toujours ramener une production, voire même une consommation, au temps qu'il a fallu pour la réaliser. Nul n'y échappe, ni dans ses loisirs, ni dans son travail. Mais c'est dans ce dernier que les instruments de mesure qui introduisant le temp…