72 research outputs found

    Quality of Life in Mentally Ill People

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    Religion and Secularisation in the Czech Republic

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    Using data from the 1991 & 1999 European Values Study, together with data from the International Social Survey Programme 1998 - Religion from 1999 & data from other public opinion surveys, this article tries to suggest the scope of secularization in the present Czech population. It documents how the process of structural differentiation leads to the declining significance of institutionalized religiousness & privatization of religion, as well as to a growing belief among Czech citizens that it is inappropriate for churches to try to influence politics or the economy. The article also raises the issues of the number of believers & the forms of their beliefs. One of the results of our analysis is the finding that the Czech Republic might be the most secularized country in Europe at the present time

    Modeling of the crystalline structure of the complex system containing doped polyaniline by use of genetic algorithms

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    The structure of polyaniline (PANI) protonated with camphorsulphonic acid (CSA) has been subject to research for a long time. Despite several, various models being proposed throughout the years, there is still no model widely accepted as the only correct and final one of its crystalline phase. In this paper a computer program named MoleculeEditor is described. Created basing on the concepts of an existing but significantly different program named CrystalFinder, it is a software dedicated to finding a model of the crystalline regions of the PANI/CSA system based on an input X-ray diffraction pattern. In its search it takes advantage of the genetic algorithm technique for optimizing the model parameters to fit the computed diffraction pattern to the one loaded as input. A successful example of it being employed to find the parameters of a prepared beforehand, fictional structure of the system, is presented. Conclusions drawn from this application of the prepared software cannot be ignored in the further search for the actual model of this complex system using this program. Obtaining results from MoleculeEditor for actual, experimental data is however still in progress

    Structure and dynamics of conducting polyaniline based compounds

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    Cette thèse présente une étude complète de la structure et de la dynamique moléculaire dans une famille de composés conducteurs de la polyaniline plastdopée. Différentes techniques expérimentales ont été combinées dans cette étude comme la diffraction aux grands angles et la diffusion aux petits angles des rayons X (WAXS et SAXS), la diffusion incohérente quasi-élastique des neutrons et les simulations numériques de dynamique moléculaire basées sur les méthodes à champ de force. Cette combinaison a permis de proposer un modèle de structure stable de type lamellaire pour ces composés présentant des fluctuations statistiques de densité électronique le long de l'axe d'empilement des couches moléculaires. De plus, il a été possible d'analyser en détails l'anisotropie structurale et l'évolution structurale des films sous étirement à la lumière de ce modèle. Enfin, une seconde moitié de la thèse est consacrée à l'analyse des données de dynamique obtenues avec les mesures de diffusion quasi-élastique des neutrons. Il a été possible de montrer que l'essentiel de la dynamique dans la fenêtre de temps 10-13-10-9 s provient du mouvement des protons portés par les queues flexibles des dopants. Cette dynamique est très distribuée en temps et aussi dans l'espace tant le long de chaque plast-dopant que parmi les plast-dopants entre eux. Les résultats de simulation numérique sont en accord remarquable avec ces mesures expérimentales. Les trajectoires des atomes calculées dans ces simulations ont permis de recalculer toutes les fonctions de diffusion mesurées par ailleurs expérimentalement. Les simulations ont non seulement confirmé les hypothèses sur lesqueslles avait été bâti un modèle analytique pour la dynamique mais de plus ont révélé des précisions sur la façon dont la dynamique est distribuée entre les contre-ions.GRENOBLE1-BU Sciences (384212103) / SudocSudocFranceF

    The period distribution of close binary systems

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    The analysis of the period distribution of eclipsing and spectroscopic binary systems shows the presence of some secondary maxima, which cannot depend on selection effects. These secondary maxima are mainly due to late type stars, as can be seen from the distribution curves for eclipsing binaries of various spectral types. The average separation of the components (in units of the sum of stellar radii) increases with the spectral type from O types to late B types, remaining almost constant for later spectral types

    The period distribution of close binary systems

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    The analysis of the period distribution of eclipsing and spectroscopic binary systems shows the presence of some secondary maxima, which cannot depend on selection effects. These secondary maxima are mainly due to late type stars, as can be seen from the distribution curves for eclipsing binaries of various spectral types. The average separation of the components (in units of the sum of stellar radii) increases with the spectral type from O types to late B types, remaining almost constant for later spectral types

    Statistics of period for eclipsing binary systems

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    Statistics of period for eclipsing binary systems

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    A statistical analysis of period distribution in eclipsing binary stars based on the spectral types of the components which takes into account the most relevant selection effects, is presented. Results are presented which are concluded to be in line with the fission theory for the origin of these systems. In addition, the results are shown to provide clear indications about evolutionary effects on the average separation. Finally, emphasis is given to the appearance of a marked bimodal distribution for the advanced spectral types
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