Search results for "PG"
showing 10 items of 1521 documents
The role of different game-genres in predicting internet gaming disorder (IGD)
2020
Introduction: Internet gaming disorder (IGD) is a new diagnosis in DSM 5 worth of research. New potentially addictive features are emerging in pay- and free-to-play videogames, involving different at-risk populations of gamers. However, few studies have examined whether and how different game-genres can contribute to the risk of IGD. Objectives: This study aimed to investigate how game-genres can predict IGD, accounting for alexithymia scores, time-related play- ing habits, and other predictors. Methods: Participants were gamers joining online communities, surveyed about which games they played more than 20 hours in their lifetime, time-variables, other stressors and alexithymia scores. A s…
Proposal for the Thuoux section as a candidate for the GSSP of the base of the Oxfordian stage.
2012
20 pages; International audience; The Thuoux section, located in South-Eastern Basin of France (coordinates: 44°30'55"E; 5°42'25"N), is a section that satisfies numerous demanding criteria as reference section (GSSP) for the base of the Oxfordian stage. Sedimentation was continuous in that the abundant ammonitic fauna yields no detectable hiatuses. The stratigraphic boundary is located between the Lamberti Zone and the Mariae Zone or more precisely between the Paucicostatum horizon (MARCHAND, 1979) and the Thuouxensis horizon (FORTWENGLER & MARCHAND, 1994a). In this section, there is a perfect mixing bet-ween Boreal ammonites (Cardioceratinae) whose species are used as stratigraphic markers…
Albian ammonites of the Benguela Basin (Angola): a biostratigraphic framework.
2007
20 pages; The study of the Albian ammonite fauna of the sedimentary series in the Benguela Basin (Angola) allows a major revision of the biostratigraphy of the south Atlantic area. The new biostratigraphic approach allows the recognition of 17 horizons distributed in 8 subzones correlated with the ammonite zonation of the Tethyan Province. The Lower Albian is characterized by the Douvilleiceras inaequinodum Subzone (including the D. mammillatum aequinodum Horizon). The Middle Albian is represented by the Oxytropidoceras (Mirapelia) buarquianum Subzone (subdivided into O. (M.) buarquianum and O. (M.) sergipense horizons). The Upper Albian is characterized by the Dipoloceras sp. Subzone (defi…
La " Dalle à ammonites de Digne " (Réserve Naturelle Géologique de Haute-Provence, France). Étude d'un site fossilifère d'importance patrimoniale.
2011
33 pages; International audience; La " Dalle à ammonites de Digne " est une localité fossilifère très spectaculaire, d'importance tant scientifique que patrimoniale. Ce site exceptionnel est protégé par la Réserve Naturelle Géologique de Haute-Provence (RNGHP). La dalle d'environ 320 m2, qui constitue l'élément essentiel du site, porte plus de 1550 céphalopodes (surtout des ammonites, mais aussi quelques nautiles) et une faune benthique discrète, mais assez diversifiée, principalement constituée de bivalves épibenthiques. La faune d'ammonites, très évidente et spectaculaire, est assez monotone. Elle comprend de très nombreux Arietitidae (Coroniceras) et quelques Schlotheimiidae (Angulaticer…
The earliest tupilakosaurid amphibian with diplospondylous vertebrae from the Late Permian of southern France
2007
5 pages; International audience; A well-preserved vertebral column from the Late Permian of Southern France (Lopingian, La Lieude Formation, Lodève Basin) is described. It is composed of diplospondylous vertebrae and is most comparable with the temnospondyl Tupilakosaurus previously known from the Early Triassic of Greenland and Russia. This new specimen therefore represents the earliest occurrence of a diplospondylous tupilakosaur, and extends the geographic range of the group to Western Europe. It is an aquatic temnospondyl that used the anguilliform undulatory mode of swimming.
Microcrinoids from the lower and middle Albian of the Anglo-Paris Basin (southern England, UK, Seine Maritime, Pas de Calais and Aube, France).
2021
16 pages; International audience; Microcrinoids of the family Roveacrinidae Peck, 1943 are described from lower and middle Albian clays of the Anglo-Paris Basin (Seine Maritime, Pas de Calais and Aube, France; Kent and Bedfordshire, UK). They are referred to two subfamilies - the Orthogonocrininae Gale, 2019 and the Plotocrininae Gale, 2020. Orthogonocrinines include the long-ranging (middle Albian-lower Cenomanian) species Orthogonocrinus apertus Peck, 1943, and Styracocrinus peracutus (Peck, 1955), known from Texas, USA, Morocco, the UK and France, and two stratigraphically successive species of the genus Hyalocrinus, H. magniezii Destombes, 1984 and H. bulliensis Destombes, 1984, known o…
Relationship between particle size and dissolution rate of bulk powders and sieving characterized fractions of two qualities of orthoboric acid
1996
Drug Dev. Ind. Pharm. ISI Document Delivery No.: VN279 Times Cited: 1 Cited Reference Count: 22 Tromelin, A Habillon, S Andres, C Pourcelot, Y Chaillot, B; International audience; We have carried out a study of the particle size distribution and aqueous dissolution rate of two commercially available qualities of orthoboric acid, labeled ''crystal'' (ABC) and ''powder'' (ABP). In a previous work, we have shown that the two commercial qualities of orthoboric acid chosen as model compound (''powder'' and ''crystal'') are related to the same crystal network in spite of their different names. However, these two qualities have very different size particle distributions, as previously determined b…
Daudzveidīgu aktivitāšu nozīme angļu valodas apguves veicināšanā 5 gadīgiem bērniem
2017
Diplomdarba nosaukums: Daudzveidīgu aktivitāšu nozīme angļu valodas apguves veicināšanā 5 gadīgiem bērniem. Diplomdarba autore: Diāna Elizabete Makveja Diplomdarba zinātniskās vadītājs: Mg. paed. Sandra Kalniņa Diplomdarba saturs: 53 lpp, 10 attēli, 3 tabulas, 4 pielikumi, analizētas 65 literatūras vienības. Pētījuma mērķis: teorētiski izpētīt, pamatot un praktiski pārbaudīt daudzveidīgu aktivitāšu nozīmi angļu valodas apguves veicināšanā 5 gadīgiem bērniem. Diplomdarba teorētiskā daļa balstās uz vairāku autoru atziņām (Lieģeniece, 1999, Svence, 1999, Baltušīte, 2000, Cameron, 2001, Marcos, 2001, Piažē, 2002, Vigotskis, 2002, O’Grady, 2005,Vos, 2008, Ellis, 2008, Brice, 2013, Lang, 2014, Ch…
Mūzika kā angļu valodas apguves sekmētāja sākumskolā
2019
Bakalaura darba autore ir Anete Ancāne. Bakalaura darba nosaukums: „Mūzika kā angļu valodas apguves sekmētāja sākumskolā”. Darba mērķis – teorētiski pētīt un praktiski pārbaudīt angļu valodas apguves iespējas ar mūzikas palīdzību sākumskolā. Pētījuma uzdevumi: 1.Analizēt pedagoģijas un psiholoģijas zinātnieku atziņas par valodas prasmēm. 2.Raksturot angļu valodas prasmju veidošanas īpatnības sākumskolas skolēniem. 3.Raksturot muzikālas darbības kā skolēnu angļu valodas apguves sekmētājus. 4.Veikt empīrisko pētījumu 3.klasē. Bakalaura darbs sastāv no ievada trīs nodaļām, secinājumiem, literatūras saraksta un pielikumiem. Darba pirmajā nodaļā apkopotas pedagoģijas un psiholoģijas zinātnieku a…
Surface and Electronic Features of Fluorinated TiO 2 and Their Influence on the Photocatalytic Degradation of 1-Methylnaphthalene
2020
International audience; Surface fluorination improves the photocatalytic activity of TiO2, and the influences of various features of fluorinated TiO2 (TiO2–F) have often been discussed in the literature. The present paper addresses the changes induced by surface fluorination on the morphological, structural, surface, and electronic features of TiO2. In particular, X-ray diffraction, specific surface area analysis, and transmission and scanning electron microscopy give evidence that surface fluorination does not affect the structural properties and the morphology of TiO2 nanoparticles. In contrast, fluorination induces changes of surface and electronic properties. Chemical and thermogravimet…