972 resultados para stars: individual: AE Aqr


Relevância:

20.00% 20.00%

Publicador:

Resumo:

Ce mémoire examine la question de la formation de l'identité en tant que procédure compliquée dans laquelle plusieurs éléments interviennent. L'identité d'une personne se compose à la fois d’une identité propre et d’une autre collective. Dans le cas où l’identité propre est jugée sévèrement par les autres comme étant déviante, cela poussera la personne à, ou bien maintenir une image compatible avec les prototypes sociaux ou bien résister et affirmer son identité personnelle. Mon travail montre que l'exclusion et la répression de certains aspects de l'identité peuvent causer un disfonctionnement psychique difficile à surmonter. Par contre, l'acceptation de soi et l’adoption de tous les éléments qui la constituent conduisent, certes après une longue lutte, au salut de l’âme et du corps. Le premier chapitre propose une approche psychosociale qui vise à expliquer le fonctionnement des groupes et comment l'interaction avec autrui joue un rôle décisif dans la formation de l'identité. Des éléments extérieurs comme par exemple les idéaux sociaux influencent les comportements et les choix des gens. Toutefois, cette influence peut devenir une menace aux spécificités personnelles et aux traits spécifiques. Le deuxième chapitre examine la question des problèmes qu’on risque d’avoir au cas où les traits identitaires franchiraient les normes sociales. Nous partons du problème épineux de la quête de soi dans Giovanni's Room de James Baldwin. L'homosexualité de David était tellement refusée par la société qu’elle a engendrée chez lui des sentiments de honte et de culpabilité. Il devait choisir entre le sacrifice des aspects de soi pour satisfaire les paradigmes sociaux ou bien perdre ce qu’il a de propre. David n'arrive pas à se libérer. Il reste prisonnier des perceptions rigides au sujet de la masculinité et de la sexualité. Mon analyse se focalise essentiellement sur l'examen des différents éléments théoriques qui touchent la question du sexe et de la sexualité. Le résultat est le suivant : plus les opinions dominantes sont rigides et fermes, plus elles deviennent une prison pour l’individu. Par contre, plus elles sont tolérantes et flexibles, plus elles acceptent les diversités de l'identité humaine. Dans le dernier chapitre, j'examine la question de la représentation des relations entre les caractères masculins dans Just Above My Head. L'homosexualité est présentée comme un moyen sacré pour exprimer l'amour. Les caractères révèlent leurs sentiments implicitement à travers les chants spirituel tel que le gospel ou bien explicitement à travers la connexion physique. Dans ce roman, Baldwin montre que c'est seulement grâce à la sincérité et à l'amour que l'individu peut atteindre la libération du soi.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Which countries find it optimal to form an economic union? We emphasize the risk-sharing benefits of economic integration. Consider an endowment world economy model, where international financial markets are incomplete and contracts not enforceable. A union solves both frictions among member countries. We uncover conditions on initial incomes and net foreign assets of potential union members such that forming a union is welfare-improving over standing alone in the world economy. Consistently with evidence on economic integration, unions in our model occur (i) relatively infrequently, and (ii) emerge more likely among homogeneous countries, and (iii) rich countries.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Cet article a précédemment été publié par le Dalhousie Law Journal.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Ce document est une version mise-à-jour du document "On the individual optimality of economic integration", mars 2011 : http://hdl.handle.net/1866/4829

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Commentaire / Commentary

Relevância:

20.00% 20.00%

Publicador:

Resumo:

En el siguiente estudio presento1 el análisis retrospectivo de un tratamiento individual de 17 sesiones de danza movimiento terapia en un caso crónico de una mujer de 59 años, institucionalizada, con un diagnóstico de esquizofrenia residual. Mi objetivo es evaluar la evolución y conclusión del tratamiento, con el fin de encontrar puntualizaciones de interés en la técnica de la DMT para pacientes con diagnósticos de psicosis y seguir construyendo y fortaleciendo la teoría y técnica de la DMT en esta población. Mis influencias teórico-técnicas provienen principalmente de los modelos de trabajo con pacientes psiquiátricos de Chaiklin y Schmais, S. (1979), Chaiklin, S. (1981), Jones (1992) y Liebowitz (1992). Utilicé las técnicas de la improvisación, el reflejo empático (Sandel, S. 1995), la verbalización (Stark & Lohn, 1995), la imagen, la metáfora y el símbolo (Sandel, S. 1995) y las enseñanzas del sistema de análisis del movimiento de Kestenberg (1999). Las aportaciones sobre creatividad de Brainsky (1988) y Pinchas Noy (1968-1969) me fueron de gran ayuda. Para el análisis triangulo información de varias fuentes: diarios de campo realizados durante el tratamiento junto con sus señalamientos producto de supervisiones y tutorías, la entrevista inicial y final a la paciente y un video analizado con la paciente y posteriormente estudiado bajo la óptica del sistema de análisis del movimiento de Kestenberg (Kestenberg y otros, 1999). Vivencio a través de mi paciente la utilidad y éxito de la DMT en la psicosis y las técnicas que nos permiten acercarnos a esta población. La DMT trabaja la estructura, no exclusivamente el fenómeno psicótico; aunque no se transforme la personalidad se fortalece, permitiéndole al sujeto vivir mejor en su condición, ser más autónomo, eficaz, feliz y móvil. La condición perse del proceso terapéutico con un psicótico es establecer una relación terapéutica para la cual es necesario entender en el cuerpo y en la mente que el funcionamiento de un psicótico no es el mismo que el de un neurótico; la barrera neurótica del terapeuta ha de sobrepasarse para lograr la fusión simbiótica que permitirá el bottom-up del psicótico. Los objetivos de trabajo en el caso individual son: integrar y desarrollar la unidad psiquesoma, contactar y expresar emociones, desarrollar las habilidades interpersonales y sociales, expandir el universo simbólico y desarrollar el movimiento espontáneo y la creatividad. Las fases del tratamiento son: los acercamientos y observaciones preliminares; la exploración del cuerpo, identificación de los focos de trabajo y comienzo de la ampliación del movimiento; la profundización y nacimiento del símbolo en la terapia y la consolidación de los avances y cierre del tratamiento. La técnica principal, es el reflejo empático del movimiento y la emoción en la improvisación y otras útiles, el masaje, automasaje, relajación, el dibujo, entre otras.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

We determine the structure of neutron stars within a Brueckner-Hartree-Fock approach based on realistic nucleon-nucleon, nucleon-hyperon, and hyperon-hyperon interactions. Our results indicate rather low maximum masses below 1.4 solar masses. This feature is insensitive to the nucleonic part of the EOS due to a strong compensation mechanism caused by the appearance of hyperons and represents thus strong evidence for the presence of nonbaryonic "quark" matter in the interior of heavy stars.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Water quality of rooftop-collected rainwater is an issue of increased interest particularly in developing countries where the collected water is used as a source of drinking water. Bacteriological and chemical parameters of 25 samples of rooftop-harvested rainwater stored in ferrocement tanks were analyzed in the study described in this article. Except for the pH and lower dissolved oxygen levels, all other physicochemical parameters were within World Health Organization guidelines. Bacteriological results revealed that the rooftop-harvested rainwater stored in tanks does not often meet the bacteriological quality standards prescribed for drinking water. Fifty percent of samples of harvested rainwater for rural and urban community use and 20% of the samples for individual household use showed the presence of E. coli. Fecal coliform/fecal streptococci ratios revealed nonhuman animal sources of fecal pollution. Risk assessment of bacterial isolates from the harvested rainwater showed high resistance to ampicillin, erythromycin, penicillin, and vancomycin. Multiple antibiotic resistance (MAR) indexing of the isolates and elucidation of the resistance patterns revealed that 73% of the isolates exhibited MAR

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Study on variable stars is an important topic of modern astrophysics. After the invention of powerful telescopes and high resolving powered CCD’s, the variable star data is accumulating in the order of peta-bytes. The huge amount of data need lot of automated methods as well as human experts. This thesis is devoted to the data analysis on variable star’s astronomical time series data and hence belong to the inter-disciplinary topic, Astrostatistics. For an observer on earth, stars that have a change in apparent brightness over time are called variable stars. The variation in brightness may be regular (periodic), quasi periodic (semi-periodic) or irregular manner (aperiodic) and are caused by various reasons. In some cases, the variation is due to some internal thermo-nuclear processes, which are generally known as intrinsic vari- ables and in some other cases, it is due to some external processes, like eclipse or rotation, which are known as extrinsic variables. Intrinsic variables can be further grouped into pulsating variables, eruptive variables and flare stars. Extrinsic variables are grouped into eclipsing binary stars and chromospheri- cal stars. Pulsating variables can again classified into Cepheid, RR Lyrae, RV Tauri, Delta Scuti, Mira etc. The eruptive or cataclysmic variables are novae, supernovae, etc., which rarely occurs and are not periodic phenomena. Most of the other variations are periodic in nature. Variable stars can be observed through many ways such as photometry, spectrophotometry and spectroscopy. The sequence of photometric observa- xiv tions on variable stars produces time series data, which contains time, magni- tude and error. The plot between variable star’s apparent magnitude and time are known as light curve. If the time series data is folded on a period, the plot between apparent magnitude and phase is known as phased light curve. The unique shape of phased light curve is a characteristic of each type of variable star. One way to identify the type of variable star and to classify them is by visually looking at the phased light curve by an expert. For last several years, automated algorithms are used to classify a group of variable stars, with the help of computers. Research on variable stars can be divided into different stages like observa- tion, data reduction, data analysis, modeling and classification. The modeling on variable stars helps to determine the short-term and long-term behaviour and to construct theoretical models (for eg:- Wilson-Devinney model for eclips- ing binaries) and to derive stellar properties like mass, radius, luminosity, tem- perature, internal and external structure, chemical composition and evolution. The classification requires the determination of the basic parameters like pe- riod, amplitude and phase and also some other derived parameters. Out of these, period is the most important parameter since the wrong periods can lead to sparse light curves and misleading information. Time series analysis is a method of applying mathematical and statistical tests to data, to quantify the variation, understand the nature of time-varying phenomena, to gain physical understanding of the system and to predict future behavior of the system. Astronomical time series usually suffer from unevenly spaced time instants, varying error conditions and possibility of big gaps. This is due to daily varying daylight and the weather conditions for ground based observations and observations from space may suffer from the impact of cosmic ray particles. Many large scale astronomical surveys such as MACHO, OGLE, EROS, xv ROTSE, PLANET, Hipparcos, MISAO, NSVS, ASAS, Pan-STARRS, Ke- pler,ESA, Gaia, LSST, CRTS provide variable star’s time series data, even though their primary intention is not variable star observation. Center for Astrostatistics, Pennsylvania State University is established to help the astro- nomical community with the aid of statistical tools for harvesting and analysing archival data. Most of these surveys releases the data to the public for further analysis. There exist many period search algorithms through astronomical time se- ries analysis, which can be classified into parametric (assume some underlying distribution for data) and non-parametric (do not assume any statistical model like Gaussian etc.,) methods. Many of the parametric methods are based on variations of discrete Fourier transforms like Generalised Lomb-Scargle peri- odogram (GLSP) by Zechmeister(2009), Significant Spectrum (SigSpec) by Reegen(2007) etc. Non-parametric methods include Phase Dispersion Minimi- sation (PDM) by Stellingwerf(1978) and Cubic spline method by Akerlof(1994) etc. Even though most of the methods can be brought under automation, any of the method stated above could not fully recover the true periods. The wrong detection of period can be due to several reasons such as power leakage to other frequencies which is due to finite total interval, finite sampling interval and finite amount of data. Another problem is aliasing, which is due to the influence of regular sampling. Also spurious periods appear due to long gaps and power flow to harmonic frequencies is an inherent problem of Fourier methods. Hence obtaining the exact period of variable star from it’s time series data is still a difficult problem, in case of huge databases, when subjected to automation. As Matthew Templeton, AAVSO, states “Variable star data analysis is not always straightforward; large-scale, automated analysis design is non-trivial”. Derekas et al. 2007, Deb et.al. 2010 states “The processing of xvi huge amount of data in these databases is quite challenging, even when looking at seemingly small issues such as period determination and classification”. It will be beneficial for the variable star astronomical community, if basic parameters, such as period, amplitude and phase are obtained more accurately, when huge time series databases are subjected to automation. In the present thesis work, the theories of four popular period search methods are studied, the strength and weakness of these methods are evaluated by applying it on two survey databases and finally a modified form of cubic spline method is intro- duced to confirm the exact period of variable star. For the classification of new variable stars discovered and entering them in the “General Catalogue of Vari- able Stars” or other databases like “Variable Star Index“, the characteristics of the variability has to be quantified in term of variable star parameters.