Search results for "VR"
showing 10 items of 758 documents
Opere dai depositi in mostra alla Galleria d'Arte Moderna di Palermo: "Il Museo tra storia e costume".
2013
Director orientation in chevron surface-stabilized ferroelectric liquid crystal cells. Verification of orientational binding at the chevron interface…
1990
Abstract We present results of theoretical modelling and experimental study of director distributions and the associated optical properties of chevron surface stabilized ferroelectric liquid crystal (SSFLC) cells. Chevron cells are modelled as being two stacked FLC slabs, described by distinct orientation distributions of the director [ncirc]-polarization P([ncirc] – P) couple. In each slab the [ncirc] – P distribution is governed by bulk Frank elastic and electric field-induced torques and by surface torques at the FLC-solid interface and at the chevron interface, where the two distributions are coupled. The optical properties of such structures are calculated numerically and the results t…
Vingt ans de réformes des systèmes éducatifs dans les pays en développement
2005
La situation politique, économique et sociale des pays en développement est difficile alors que pratiquement tous, depuis maintenant plus de vingt ans, ont mis en œuvre des réformes très importantes élaborées en fonction des plans d'ajustement structurel initiés par le FMI, et financées par des projets soutenus par les grands bailleurs de fonds internationaux (multilatéraux ou bilatéraux). Panvi ces pays, cinquante et un ont été identifiés par la Banque mondiale comme présentant un niveau de développement tellement faible, associé à un taux d'endettement tellement élevé, qu'ils sont susceptibles de bénéficier de l'initiative dite PPTE (Pays Pauvres Très Endettés). L'objectif prioritaire de …
Chimie de coordination du phosphore aux métaux du groupe 11 : progrès en catalyse de couplage C-N au Cu(I) et nouveaux complexes polyphosphines de l'…
2014
Nowadays, sustainable development encourages chemists to develop new economic and ecologic synthesis, because natural ressources are reducing. Most exploited ressources are gas and petroleum, but precious metals are also essential. This thesis is focusing on the enhancement of gold and copper complexes, obtained in our laboratory from phosphorous-based ligands. In the first part, we will develop a new system for the N-arylation of pyrazoles from a copper complexe coordinated by a new hybrid phosphinoalkene ligand. In the second part, coordination properties of gold to different ferrocenic polyphosphine will be studied. Several new innovative complexes will be isolated, and could be used in …
Implantations, activités et relations des établissements d'assistance en Bourgogne à la fin du Moyen Age
2012
The study presented here is the conclusion of an inventory about hospitals having existed on the territory of some dioceses (Autun, Auxerre, Chalon-sur-Saône, Nevers and the south of that of Langres diocese) between XIIth and XVth centuries. Based on the data collected, an atlas of assistance and a directory of sources on medieval hospitals of the study area has been made. The compiled informations proved to be very different but also very heterogeneous. Nevertheless, reflexions were conducted about the characteristics of these hospitals and their relationships with their economic, religious, political and social environments. It revolves around three parts dealing by turns the influence of…
Intelligence in DSM-IV combined type attention-deficit/hyperactivity disorder is not predicted by either dopamine receptor/transporter genes or other…
2008
Contains fulltext : 69677.pdf (Publisher’s version ) (Closed access) A major goal of genetic studies of attention deficit hyperactivity disorder (ADHD) is to identify individual characteristics that might help segregate the disorder's inherent heterogeneity. [Mill et al. (2006); Arch Ger Psychiatry 63:462-469] recently reported a potentially important association between two dopamine-related risk polymorphisms (DRD4 variable number tandem repeat (VNTR) in exon 3 and DAT1 VNTR in the 3' UTR) and lowered IQ in ADHD. The objective of the current study was to replicate the [Mill et al. (2006); Arch Ger Psychiatry 63:462-469] findings in a clinical sample and to extend the analysis to a large ra…
Genetic heterogeneity in ADHD: DAT1 gene only affects probands without CD
2008
Contains fulltext : 70183.pdf (Publisher’s version ) (Closed access) Previous studies have found heterogeneous association between DAT1-3'-UTR-VNTR and attention deficit hyperactivity disorder (ADHD). Various proportions of conduct disorder (CD) comorbidity in their ADHD samples may partially explain the observational discrepancies. Evidence for this comes from family and twin studies which found ADHD probands with CD (ADHD + CD) are genetically different from those without CD (ADHD - CD). Genotypes of 20 DAT1 markers were analyzed in 576 trios, consisting of 141 ADHD + CD and 435 ADHD - CD. In addition to the classical TDT test, a specific genetic heterogeneity test was performed to identi…
The impact of study design and diagnostic approach in a large multi-centre ADHD study: Part 2: Dimensional measures of psychopathology and intelligen…
2011
Contains fulltext : 97437.pdf (Publisher’s version ) (Open Access) BACKGROUND: The International Multi-centre ADHD Genetics (IMAGE) project with 11 participating centres from 7 European countries and Israel has collected a large behavioural and genetic database for present and future research. Behavioural data were collected from 1068 probands with ADHD and 1446 unselected siblings. The aim was to describe and analyse questionnaire data and IQ measures from all probands and siblings. In particular, to investigate the influence of age, gender, family status (proband vs. sibling), informant, and centres on sample homogeneity in psychopathological measures. METHODS: Conners' Questionnaires, St…
LA “CRISI” DELLE PROCEDURE DI RIMEDIO AL SOVRAINDEBITAMENTO (E DEGLI ACCORDI DI RISTRUTTURAZIONE DEI DEBITI)
2014
Il saggio ha per oggetto le vicende di inattuazione delle procedure di composizione della crisi, ex l. n. 3/2012, in ragione dell’inadempimento o dell’impossibilità sopravvenuta di esecuzione del contenuto obbligatorio del relativo accordo o piano, o del sopraggiungere del fallimento del proponente, nell’intento di risolvere alcuni interrogativi in una possibile chiave sistematica. A tal fine, procede ad un confronto con gli strumenti, previsti dalla legge fallimentare, del concordato preventivo e dell’accordo di ristrutturazione dei debiti; ed in tale prospettiva esplora la possibilità di dare soluzione ad un paio di problemi interpretativi, relativi: agli effetti del successivo fallimento…
Vers des systèmes viticoles économes en pesticides
2022
L’utilisation de produits phytosanitaires (cuivre, soufre et produits de synthèses) est à ce jour le moyen de lutte le plus efficace pour garantir une vendange qualitative et quantitative (Pujol, 2017). Face aux préoccupations sociétales croissantes concernant l’impact des pesticides sur l’environnement et la santé, la viticulture se doit pourtant de réduire sa dépendance aux produits phytosanitaires. Une transition agroécologique est ainsi nécessaire et implique de changer les pratiques afin de parvenir à diminuer l’utilisation des produits phytosanitaires. Le réseau DEPHY-Ferme a été créé en 2010 afin d’initier et stimuler cette transition agroécologique et répondre aux enjeux ambitieux i…