Search results for " key"
showing 10 items of 409 documents
Etude numérique d'équations aux dérivées partielles non linéaires et dispersives
2011
Numerical analysis becomes a powerful resource in the study of partial differential equations (PDEs), allowing to illustrate existing theorems and find conjectures. By using sophisticated methods, questions which seem inaccessible before, like rapid oscillations or blow-up of solutions can be addressed in an approached way. Rapid oscillations in solutions are observed in dispersive PDEs without dissipation where solutions of the corresponding PDEs without dispersion present shocks. To solve numerically these oscillations, the use of efficient methods without using artificial numerical dissipation is necessary, in particular in the study of PDEs in some dimensions, done in this work. As stud…
Archives and documents in the digital age
2017
Este artículo se propone reflexionar sobre algunas de las características del nuevo orden digital. En particular, se centra en las mutaciones que afectan a los conceptos de archivo y documento, así como a sus rasgos más destacados. Partiendo del hecho de que estos registros son fundamentales para cualquier estudioso del pasado, indaga sobre las consecuencias de su desmaterialización. Se examina el significado de ese espacio en algunas de sus dimensiones y se subraya la evidente paradoja que supone conservar y estudiar objetos o datos que son efímeros por naturaleza y que, en su mayoría, nacieron para morir rápidamente. The paper aims to examine and explore on some of the characteristics of …
Contro il paternalismo giuridico
2011
Sommario In questo articolo, si argomenterà che il paternalismo giuridico non è una concezione etico-politica condivisibile. In base a tale concezione, infatti, lo Stato può usare la forza, contro la volontà di un individuo adulto, anche qualora le sue scelte siano razionali e libere da coazione altrui, al fine di tutelare (ciò che si pretende sia) il suo bene. In particolare, si argomenterà che quello dell’autonomia individuale sia un argomento, in favore dell’antipaternalismo, più forte e condivisibile dei due principali argomenti in favore del paternalismo, quello utilitarista/organicista e quello perfezionista. Questi ultimi due argomenti, correttamente interpretati, sono, infatti, inco…
‘I don’t know the answer to that question’: a corpus-assisted discourse analysis of White House Press Briefings
2013
White House Press Briefings, daily meetings with the press held by the White House Press Secretary, are the main information conduit for the White House (Kumar 2007). They are considered a “political chess game” where the Press Secretary and the press face a “wrestling match” (Partington 2006: 16). Our analysis is carried out on a corpus comprising all the Press Briefings across three presidencies from Clinton to Obama. The additional mark-up includes information about individual speakers and their role, allowing us to compare different discourse strategies adopted by the participants in the briefings at different points in time. This leads us to determine the extent of the differences in t…
Phytoplankton in extreme environments: importance and consequences of habitat permanency
2020
AbstractThere is hardly any sunshine exposed surface on this Earth, be it water or terrain, which would not support some biota. Still, many habitats offer harsh conditions requiring specialized physiological adaptations to survive. These environments are referred to as extremes; often inhabited by extremophilic organisms. In this review, characteristic species and assemblage properties of phytoplankton inhabiting extreme environments (especially lakes and pools where planktic life is potentially possible and independently of their origin) in terms of alkalinity, acidity, DOC, salinity, temperature, light and mixing regime will be outlined. Lakes characterized by more than a single extreme a…
<strong>Review of the New Caledonian species of the genus <em>Pactola</em> Pascoe, 1876 (Coleoptera: Curculionidae: Eugnomini), wit…
2014
The two species of the genus Pactola Pascoe known from New Caledonia, P. convexa (Montrouzier) and P. setacea (Montrouzier), are redescribed and two new species (P. magna sp. n. and P. proxima sp. n.) are described. Pactola kanalensis (Perroud) is a new junior synonym of P. setacea (Montrouzier). A neotype of Pactola setacea (Montrouzier) and lectotypes of Pactola convexa (Montrouzier) and Pactola kanalensis (Perroud) are designated. Pactola nigra Hudson is considered conspecific with Pactola variabilis Pascoe but formal synonymy requires further study. Colour photographs of the dorsal habitus and line drawings of taxonomically relevant structures of all species are provided, as well as an …
Forward rapidity isolated photon production in proton-nucleus collisions
2018
We calculate isolated photon production at forward rapidities in proton-nucleus collisions in the Color Glass Condensate framework. Our calculation uses dipole cross sections solved from the running coupling Balitsky-Kovchegov equation with an initial condition fit to deep inelastic scattering data and extended to nuclei with an optical Glauber procedure that introduces no additional parameters beyond the basic nuclear geometry. We present predictions for future forward RHIC and LHC measurements. The predictions are also compared to updated results for the nuclear modification factors for pion production, Drell-Yan dileptons and $J/\psi$ mesons in the same forward kinematics, consistently c…
Droits européens et droit de la famille : contribution à l'étude de la dynamique du rapprochement
2011
In Europe, there's now a trend for the standardization of national family laws.This is closely linked to the increase of sources. The Council of Europe’s right, the European Union’s right, and the Comparative Law are increasingly interfering with the inner process of the production of family laws.The uniform standardization of family Laws first and foremost originates in the interaction of sources.The relationship between the different european legal systems, whether national or supranational, cannot only be seen as hierarchic or horizontal.They are indeed much more complicated and are based upon communication i.e. based on exchange and mutual influence. Communication between the different …
Effects of modulation of body fat in production of adiponectin in mice : consequences on hepatic metabolism of lipids
2010
Adiponectin (ApN), a 30-kDa adipokine abundantly produced by adipose tissue has been described for the first time in 1995. Early findings demonstrating serum adiponectin levels are inversely correlated with obesity initiated intense investigation of the relationship between adiponectin and all symptoms of the metabolic syndrome. Of these studies, strong evidence suggests that a weight loss induced by medication or hypocaloric diet led to increased circulating ApN levels and improvement of biochemical parameters. Thus, high levels of ApN have been correlated with an improvement of insulin sensitivity and lipid parameters reducing cardiovascular risk. However mechanisms involved in the improv…
<strong>Two new species of oribatid mites of the genera <em>Pergalumna</em> and <em>Carinogalumna</em> (Acari, Oribatid…
2014
Two new species of oribatid mites of the family Galumnidae, Pergalumna minituberculata sp. nov. and Carinogalumna alineata sp. nov., are described from soil of secondary mixed broadleaved forest with bamboo in eastern Nepal. The genus Carinogalumna is recorded for the first time in the Oriental region. Pergalumna minituberculata sp. nov. is similar morphologically to Pergalumna longisetosa Balogh, 1960 and Pergalumna paralongisetosa Ermilov & Kaluz, 2012, however, it differs from both by the body size, length of bothridial and adanal setae, absence of porose areas Ad, and the presence of notogastral setae c, medial pore, postanal porose area, striate genital plates and striate bands in anog…