Search results for "BAND"

Ab initio calculations of pure and Co+2-doped MgF2 crystals

2020

This research was partly supported by the Kazakhstan Science Project № AP05134367«Synthesis of nanocrystals in track templates of SiO2/Si for sensory, nano- and optoelectronic applications», as well as by Latvian Research Council project lzp-2018/1-0214. Calculations were performed on Super Cluster (LASC) in the Institute of Solid State Physics (ISSP) of the University of Latvia. Authors are indebted to S. Piskunov for stimulating discussions.

A direct study of the vibrational bending effect in line mixing: The hot degenerate 11(1)0<-01(1)0 transition of CO2

1997

0022-4073; The study of the isotropic Raman Q-branch of a hot band Pi <-- Pi allows one to establish a direct connection between the vibration-rotation angular momentum coupling and the resulting spectra. Due to the l-doubling, the Q-branch is split into two subbranches characterized by either even or odd rotational quantum number j. The vibrational bending reduces the rotational transfer rates inside each of these subbranches by a factor of about two and induces an inter-subbranch coupling. The expected propensity rule towards conservation of the parity index for high rotational levels is well observed. Calculated spectra are in excellent agreement with CARS experiments for the nu(1) + nu(…

Les déterminants de l'abandon en thèse : étude à partir de l'enquête Génération 98 du Céreq

2003

International audience

L'abandon de l'enseignement : un effet indirect du néo-management ?

2017

L'abandon enseignant : travail, opportunités, parcours

2016

National audience

Quitter l’enseignement : un révélateur des transformations du métier dans le premier degré

2022

Efficacité interne de l'enseignement primaire aux pays de la Communauté Economique des Pays des Grands Lacs (CEPGL) : question approfondie sur le Rwa…

2011

This PhD study has been achieved with objective to carry out the level of internal efficiency of the primary education in the CEPGL countries and the progress reaches toward the education for all after the period of ethnic and armed conflicts. In addition, specifically for Rwanda, to underline the individual, families and school factors explanatory of the repetition and drop-out in the primary schools. The data of our analysis come from different reports of ministries, international organizations and publications of researchers. The analysis of the primary education inside CEPGL countries, by the indicators that document education supply and demand, show that, after the period of conflicts,…

Trasformazione e riuso dei vuoti urbani: quattro casi studio

2016

Il saggio indaga su contesti urbani consolidati che contengono tracce appartenenti a preesistenze industriali oggi in disuso, ma che costituiscono originali trame urbane da reinterpretare, riqualificare e riutilizzare in alternativa alle nuove espansioni. Il progetto della trasformazione/cambiamento diviene una metodologia d’intervento che richiede approcci, sensibilità e strumenti adeguati, che vanno dal controllo urbanistico a quello architettonico, dalla verifica tecnologica e strutturale a quella sociale e fruitiva. Sono presentate alcune ipotesi progettuali che illustrano come la valorizzazione delle aree industriali possa contribuire alla rigenerazione urbana di interi quartieri o por…

Towards a Comprehension of University Dropout in Catalonia: the Case of Universitat Autònoma de Barcelona

2015

The article presents the results of a research that aims to unfold the reasons behind students’ dropout at the Autonomous University of Barcelona (UAB). Data is analyzed, and interviews and focus groups with students who have dropout, study degree’s coordinators and institutional authorities are carried out. Results indicate that part of the abandonment taking place is voluntary, natural and even necessary, when the student does not enter the desired option or discovers that the studies do not fi t with their vocational interests, but it also represents a misalignment between the academic offer and the students’ capabilities, performance and motivation.

De barrio-problema a barrio de moda: gentrificación comercial en Russa-fa, El “Soho” valenciano

2015

Russafa neighborhood in Valencia (Spain) has become the center of one of the most ambitious urban redevelopment plans implemented by the local council in recent years. This old neighborhood of merchants and artisans, that during the 80's and 90’s experienced a long period of degradation and neglect, is today the multicultural trendy district for tourists and citizens The aim of this paper is to show the gentrification process emerged in this neighborhood, and how from the abandonment that characterized it just a decade ago, it has undergone a fast process of festivalization and economic transformation with the arrival of the “creative classes”, that so far has caused few reactions, despite …