661 research outputs found
Live Performance as a Multiverse: : From the Present Moment to the Transverse Effect
What are the different interconnected spaces and times in the construction of the character in drama, and to what extent is acting ‘live’ performances consubstantial with the notion of the multifarious, and especially the multiverse
The power spectrum of solar convection flows from high-resolution observations and 3D simulations
We compare Fourier spectra of photospheric velocity fields from very high
resolution IMaX observations to those from recent 3D numerical
magnetoconvection models. We carry out a proper comparison by synthesizing
spectral lines from the numerical models and then applying to them the adequate
residual instrumental degradation that affects the observational data. Also,
the validity of the usual observational proxies is tested by obtaining
synthetic observations from the numerical boxes and comparing the velocity
proxies to the actual velocity values from the numerical grid.
For the observations, data from the SUNRISE/IMaX instrument with about 120 km
spatial resolution are used, thus allowing the calculation of observational
Fourier spectra well into the subgranular range. For the simulations, we use
four series of runs obtained with the STAGGER code and synthesize the IMaX
spectral line (FeI 5250.2 A) from them. Proxies for the velocity field are
obtained via Dopplergrams (vertical component) and local correlation tracking
(horizontal component).
A very good match between observational and simulated Fourier power spectra
is obtained for the vertical velocity data for scales between 200 km and 6 Mm.
Instead, a clear vertical shift is obtained when the synthetic observations are
not degraded. The match for the horizontal velocity data is much less
impressive because of the inaccuracies of the LCT procedure. Concerning the
internal comparison of the direct velocity values of the numerical boxes with
those from the synthetic observations, a high correlation (0.96) is obtained
for the vertical component when using the velocity values on the
log() = -1 surface in the box. The corresponding Fourier spectra are
near each other. A lower maximum correlation (0.5) is reached (at =
1) for the horizontal velocities as a result of the coarseness of the LCT
procedure.Comment: 12 pages, 9 figures, accepted in A&
Environnement numérique et formation des journalistes en Algerie
La présente communication a pour objet l’examen de l’évolution du monde
des médias à la lumière de l’intégration et de l’adaptation des technologies de l’information
et de la communication et des échanges électroniques ( rapidité, instantanéité) ainsi
que l’étude de l’introduction des nouvelles et/ou spécifiques compétences ayant trait à la
formation des journalistes et à la pratique journalistique induite par le nouveau cadre de
liaison numérique dédié aux médias.The present communication has as an aim the examination of the evolution
of the world of the media in the light of integration and the adaptation of electronic
exchange and communication and information technologies (speed, instantaneity) as
well as the study of the introduction of the new and/or specific competences related to
the training of the journalists and the journalistic practice induced by the new framework
of digital link dedicated to the media.A presente comunicação tem por objetivo o exame da evolução do mundo
da mídia à luz da integração e da adaptação das tecnologias da informação e da comunicação
às mudanças eletrônicas (rapidez, instantaneidade), bem como o estudo da
introdução das notícias e/ou específicas competências relacionadas com a formação de
jornalistas e à prática jornalística induzida pelo novo quadro de ligação digital dedicado
à mídia
Green City or Urban Countryside?; An Analytic Review of the Urban Sprawl Phenomenon in the Algerian City N’Gaous
Urban sprawl is a global phenomena in which a city expands and suffocates its surrounding countryside. These two indivisible entities coexist in a field that juxtaposes and composes urban and rural traits according to their respective modalities. Sociologically rural and economically urban, N\u27Gaous orchard city par excellence, located in the heart of the Aures and characterized by its apricot trees, has experienced an astounding spatial expansion over the last 60 years, establishing a strong presence in its territory, solidifying its service, and reaffirming its attraction. Its land area expanded by more than ten times (from 33.7 to 379.7 hectares), while the population increased by more than six times (from 4,887 to 33,515 persons ). The fast growth of its urban sprawl creates a number of issues, the most serious of which are these peri-urban orchards. The goal of this article is to investigate urban growth and urbanization in N\u27Gaous, Algeria. The purpose is to ascertain the effects of urban expansion on peri-urban agricultural land, the primary economic activity in the area, and to chart its evolution. Accordingly, the article employs an analytical approach to assess the agronomic potential of soils in order to quantify and monitor the agricultural potential consumed by the construction. This method is supported by the use of Geographic Information Systems as a decision support tool for spatializing the city\u27s growth. The focus of the article is not merely to avoid urban expansion, but to achieve the optimal agri-urban balance feasible. Hence, it will serve as a demonstration that the urban future is fashioned with the inherent potential to guide growth via the use of land assets
Objective functions with redundant domains
Let (E,A) be a set system consisting of a finite collection A of subsets of a ground set E, and suppose that we have a function ϕ which maps A into some set S. Now removing a subset K from E gives a restriction A(K¯) to those sets of A disjoint from K, and we have a corresponding restriction ϕ|A(K¯) of our function ϕ. If the removal of K does not affect the image set of ϕ, that is Im(ϕ|A(X¯))=Im(ϕ), then we will say that K is a kernel set of A with respect to ϕ. Such sets are potentially useful in optimisation problems defined in terms of ϕ. We will call the set of all subsets of E that are kernel sets with respect to ϕ a kernel system and denote it by Kerϕ(A). Motivated by the optimisation theme, we ask which kernel systems are matroids. For instance, if A is the collection of forests in a graph G with coloured edges and ϕ counts how many edges of each colour occurs in a forest then Kerϕ(A) is isomorphic to the disjoint sum of the cocycle matroids of the differently coloured subgraphs; on the other hand, if A is the power set of a set of positive integers, and ϕ is the function which takes the values 1 and 0 on subsets according to whether they are sum-free or not, then we show that Kerϕ(A) is essentially never a matroid
La diversité linguistique dans le medias algérien: facteur rassembleur pour un dialogue interculturel et un rapprochement entre les peuples de la Méditerranée
La Méditerranée constitue aujourd’hui un des espaces les plus marqués par le
déplacement des personnes, des migrations individuelles et collectives et se caractérise
donc par le plurilinguisme, le multiculturalisme, la mixité et la diversité des cultures.
Dans cette optique, les langues jouent un rôle primordial. Elles sont le médium des expériences
mutuelles, des environnements intellectuels et culturels, des systèmes de valeurs,
des codes sociaux et surtout du sentiment d’appartenance sociale aussi bien sur le plan
collectif qu’individuel. Ceci est particulièrement vrai pour l’Algérie, société plurilingue, et
dont le paysage linguistique se définit par la coexistence de plusieurs variétés langagières
qui vadu substrat berbère aux différentes langues étrangères en passant par la langue
arabe, vecteur de l’islamisation et de l’arabisation de l’Afrique du nord. Enfin cette diversité
linguistique et culturelle appelle, dans le cadre du dialogue interculturel de l’espace
méditerranéen à la diversité médiatique aussi bien pour les medias classiques que pour
les supports nés des nouvelles technologies de l’information et de la communication
(Internet, presse électronique, réseaux sociaux, téléphone mobile etc…).The Mediterranean constitutes today one of the regions most marked by the
displacement of persons, individual and collective migrations and is thus characterized
by the pluralingualism, multiculturalism, social and cultural diversity. In this perspective,
languages play a primordial role. They are the medium of the mutual experiences, intellectual
and cultural environments, systems of values, and social codes. They are actually
the media of the feeling of close, social relationships at the collective as well as individual
levels. This is particularly true for Algeria, a pluralinguist society whose linguistic area
could be described by the coexistence of several linguistic varieties from the Berber substratum
to the various foreign languages via Arabic, vector of Islamization and Arabization
of north Africa. Finally, this linguistic and cultural diversity calls, within the framework of
intercultural dialogue of the Mediterranean region, for media diversity. This concerns both
the traditional media and the supports born of communication and information (Internet,
electronic press, social networks, mobile telephony etc…).O Mediterrâneo constitui hoje um dos espaços mais marcados pelo deslocamento
das pessoas, pelas migrações individuais e coletivas e se caracteriza, portanto, pelo
plurilinguismo, pela multiculturalidade, pela mistura e pela diversidadede culturas. sob
esta ótica, as línguas têm um papel primordial. Elas são o meio de experiências mútuas,
ambientes intelectuais e culturais, sistemas de valores, códigos sociais e sentimento, especialmente
social, tanto coletiva como individualmente. Isto é particularmente verdadeiro
para a Argélia, sociedade multilingue, e cuja paisagem linguística é definida pela coexistência
de múltiplas variedades linguísticas que vão do substrato berbere às diferentes
línguas estrangeiras, passando pela língua árabe, o vetor de islamização e da arabização
da África do norte. Finalmente, esta diversidade linguística e cultural apela, no contexto
do diálogo intercultural na região do Mediterrâneo, para a diversidade da mídia, tanto
para mídias tradicionais como os meios de comunicação nascidos das novas tecnologias
de informação e comunicação (Internet, mídia eletrônica, redes sociais, celular etc.)
La introducción de las TIC en el diseño de entornos arquitectónicos sanitarios, como una herramienta para ayudar a la terapia de los pacientes
There is a reasonable number of documents on the design of
hospitals and related buildings, and even on mental health facilities, but there are no psychological benefits studies for the basic
design elements that are mandatory in mental health institutions.
This work analyzes different aspects of ambient design dealing
with seemingly minor interior choices such as texture, color,
sounds / noises, decoration, and all the elements that create a
mood. In doing so, we should be able to see how design decisions can affect patients’ health outcomes and prove that spatial
ambiences can be used to improve health, and mental health
in particular. For this, a field study was conducted on a sample
chosen at the Er Rasi psychiatric hospital in Annaba, in Algeria,
as well as the neurology department at the Annaba University
Hospital. These two categories of patients are extremely reactive and receptive to the atmosphere of the space that surrounds
them, a key factor that motivated our choice. Interdisciplinary
and trans-sensorial aspects, common to analysis and design,
rooted in the concept of spatial atmosphere, encourage us to
use the NICT (New Information and Communication Technologies) as a tool for the creation of an interactive living space
evolving in real time capable of spontaneously modifying the
physical properties of space, depending on the environment,
to serve as a therapy for depressed people in a psychiatric
environment.Existe una cantidad razonable de documentos sobre el diseño
de hospitales y edificios relacionados, e incluso sobre centros
de salud mental, pero no existen estudios de beneficios psicológicos para los elementos básicos de diseño que son obligatorios
en las instituciones de salud mental. Este trabajo analiza diferentes aspectos del diseño ambiental, tratando opciones interiores
aparentemente menores, como textura, color, sonidos/ruidos o
decoración; y todos los elementos que crean un estado de ánimo.
Al hacerlo, deberíamos ser capaces de ver cómo las decisiones
de diseño pueden afectar los resultados de salud de los pacientes
y demostrar que los entornos espaciales se pueden utilizar para
mejorar la salud y la salud mental en particular. Para esto, se realizó
un estudio de campo en una muestra elegida del hospital psiquiátrico Er Rasi de Annaba (Argelia), así como el departamento de
neurología del Hospital Universitario Annaba. Estas dos categorías de pacientes son extremadamente reactivos y receptivos a la
atmósfera del espacio que los rodea, un factor clave que motivó
nuestra elección. Los aspectos interdisciplinarios y trans-sensoriales, comunes al análisis y al diseño, enraizados en el concepto
de atmósfera espacial, nos alientan a utilizar NICT (Nuevas Tecnologías de la Información y la Comunicación) como herramienta para
la creación de un espacio interactivo que evoluciona en tiempo real,
capaz de modificar de forma espontánea las propiedades físicas
del espacio, dependiendo del entorno, para servir como terapia
para personas deprimidas en un entorno psiquiátrico
La diction du tragédien ridicule sous l’Ancien Régime
L’un des «procédés» comiques récurrents dans les pièces des forains et plus tard, de l’Opéra-Comique, est la parodie de la déclamation tragique. Une image s’est peu à peu figée dans le théâtre du xviiie siècle, à la fois intense et ambiguë: intense parce qu’elle dénonçait avec une certaine violence, les défauts des tragédiens de la Comédie-Française en les transformant en de simples bouffons (les tragédiens étaient ainsi rabaissés et devenaient semblables à ceux qu’ils honnissaient le plus: l..
Production of laccase without inducer by Chaetomium species isolated from Chettaba forest situated in the East of Algeria
A positive laccase strain which showed a positive reaction with guaïacol was isolated from Chettaba Forest, which is situated in Constantine, the East of Algeria. It was identified as Chaetomium species (Ref 051A) according to the morphological and ribosomal internal transcribed spacer (ITS) DNA genomic sequence analysis. Laccase activity was determined by using 2,2-azinobis(3- ethylbenzthiazoline-6-sulfonate) diammonium salt (ABTS) as a substrate. Its highest activity was achieved by using potato dextrose broth (PDB) as a culture medium. Metal ion CuSO4 had no positive effect on laccase production. The laccase activity obtained in submerged fermentation (20 L) was higher than that produced in Erlenmeyer flask (500 ml). The study of pH and temperature effects showed that pH optimum was 5 and 6, and temperature was 35°C. Laccase produced by Chaetomium spp. can be used in industrial production.Keywords: Chaetomium species, guaïcol, laccase, 2,2-azinobis(3- ethylbenzthiazoline-6-sulfonate) diammonium salt (ABTS), submerged fermentatio
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