903 resultados para cover design from a gender perspective
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La moyenne pancanadienne des infirmières qui quittent leur emploi dans la première année d’embauche est de 19,9% (O’Brien-Pallas, 2010). Ce taux représente un coût important puisqu’on estime que l’embauche d’une nouvelle infirmière engendre des frais de formation de l’ordre de 30 000$ (Hayes, 2007). Le présent mémoire repose sur l’idée que le leadership des infirmières chefs et la nature de leurs interventions de gestion jouent un rôle important dans la rétention des infirmières sur les unités ce qui, à son tour, contribue à l’amélioration et au maintien d’un environnement de travail sain qui favorise l’adaptation aux changements organisationnels et opérationnels (Cummings, 2005). Selon une perspective environnementale d’analyse des systèmes organisationnels, cette situation implique que le bon fonctionnement de l’établissement de santé dépend de la capacité à « acquérir et maintenir les ressources », (Pfeffer, 2003 p.2) incluant les ressources humaines. L’objectif de ce mémoire est d’analyser l’influence de la culture organisationnelle et du type de leadership des infirmières chefs sur deux variables soit l’intention de quitter le poste actuel et la qualité perçue du milieu des infirmières soignantes. Cette étude quantitative s’appuie sur un devis corrélationnel. Afin d’assurer la représentativité, un échantillonnage probabiliste a été utilisé. Le biostatisticien de l’Ordre des Infirmières et Infirmiers du Québec (OIIQ) a fourni les noms et coordonnées de 1000 infirmières qui travaillent sur les unités de soins des quatre hôpitaux ciblés par l’étude. L’analyse des données a permis d’identifier quatre relations causales. Une relation a ainsi été établie entre la culture organisationnelle et le type de leadership utilisé. Ensuite une relation a été établie entre la culture organisationnelle et la qualité perçue du milieu. La relation suivante est entre le type de leadership utilisé et la qualité perçue du milieu par les infirmières soignantes. Finalement, l’effet médiateur du leadership résonnant entre la culture organisationnelle et la qualité perçue du milieu a été démontré. Des suggestions d’améliorations aux niveaux organisationnel et académiques ainsi que des recommandations au niveau de la gestion et de la pratique infirmière découlent de l’analyse des données.
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Introduction: La surcharge de pression ventriculaire augmente à l’exercice chez les patients avec une sténose de valve aortique (SVA). Lorsqu’il n’y a aucun symptôme apparent, il est cependant difficile d’indiquer l’intervention chirurgicale en utilisant seulement les indices de surcharge de pression ventriculaire. D’autres paramètres, tels que la dispersion de la repolarisation ventriculaire (d-QT), qui augmentent avec le gradient de pression transvalvulaire (GPT), n’ont pas été étudiés dans la SVA. L’objectif de l’étude était de déterminer le modèle de réponse du segment QT et de la d-QT à l’épreuve d’effort chez des enfants avec une SVA congénitale modérée afin d’évaluer l’impact de la surcharge de pression ventriculaire selon une perspective électrophysiologique. Matériel et méthodes: 15 patients SVA modérés ont été comparés à 15 sujets contrôles appariés pour l’âge (14.8±2.5 ans vs. 14.2±1.5 ans) et pour le sexe (66,7% de sujets mâles). Tous les sujets ont fait une épreuve d’effort avec enregistrement électrocardiographique à 12 dérivations. Le segment QT a été mesuré à partir du début du complexe QRS jusqu’à l’apex de l’onde T (QTa) au repos, à l’effort maximal ainsi qu’après 1 et 3 minutes de récupération. La longueur du segment QT a été corrigée selon l’équation de Fridericia et la d-QT a été calculée. Résultats: La longueur du segment QT corrigée (QTc) était similaire au repos entre les groupes d’étude, mais était significativement élevée chez les SVA en comparaison avec le groupe contrôle à l’effort maximal (p=0.004) ainsi qu’après 1 (p<0.001) et 3 (p<0.001) minutes de récupération. Une interaction significative a été identifiée entre les groupes pour la d-QT (p=0.034) et les tests post hoc ont révélé une différence significative seulement au repos (p=0.001). Conclusions: Les anomalies de repolarisation ventriculaire peuvent être révélées par l’évaluation de la repolarisation électrique lors de l’épreuve d’effort chez les SVA modérées asymptomatiques. L’utilisation de la réponse du QT à l’effort pourrait être bénéfique pour l’optimisation de la stratification du risque chez ces patients.
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Contexte: Évaluer les déterminants de maladies évitables et leurs coûts est nécessaire dans le contexte d’assurance maladie universelle. Le moment d’évaluer les impacts des traumatismes crâniocérébraux (TCC) survenus lors d’accidents de vélo est idéal vu la popularité récente du cyclisme au Québec. Objectifs: Comparer les caractéristiques démographiques et médicales, ainsi que les coûts sociétaux qu’engendrent les TCC de cyclistes portant ou non un casque. Méthodologie: Étude rétrospective de 128 cyclistes avec TCC admis à l’Hôpital Général de Montréal entre 2007 et 2011. Les variables indépendantes sont sociodémographiques, cliniques et le port du casque. Les variables dépendantes sont la durée de séjour, l’échelle GOS-E, l’échelle ISS, l’orientation au congé, les décès et les coûts à la société. Résultats: Le groupe portant un casque était plus vieux, plus éduqué, retraité et marié; au niveau médical, ils avaient des TCCs moins sévères à l’imagerie, des hospitalisations aux soins intensifs plus courtes et moins de neurochirurgies. Les coûts médians à la société pour les TCC isolés de cyclistes avec casque étaient significativement moindres. Conclusion: Dans cette étude, le port du casque semblait prévenir certaines complications des TCC et permettait de faire économiser de l’argent à l’état. Le port de casque est recommandé.
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Notre étude porte sur la manière dont les chercheurs universitaires junior et senior en sciences sociales au Québec établissent leurs réseaux de cosignataires et donnent une interprétation discursive à leurs activités de collaboration face à l'impact du changement institutionnel universitaire pendant la période 1990-2009. Plus spécifiquement, notre recherche s'intéresse à montrer que la création des réseaux et la collaboration scientifique par cosignature peuvent être identifiées comme des « ajustements professionnels » et se présenter aussi comme une ressource du capital social qui peut être mobilisé et qui peut produire des avantages aux chercheurs en accord avec leur statut junior ou senior. Il s’agit donc d’une recherche qui relève de la sociologie des sciences. Notre approche a été opérationnalisée à partir de l'étude de 15 membres d'un centre de recherche universitaire au Québec, et leur réseau de 447 cosignataires (y compris les chercheurs de l'étude), et à travers l'application de 7 entretiens auprès de chercheurs junior et senior du même centre. Dans le même plan opérationnel, depuis une perspective qualitative, la thèse permet d'identifier le sens discursif que les chercheurs fournissent à la collaboration et à la participation en réseaux de cosignatures. Ensuite, depuis l'analyse structurelle des réseaux, notre étude montre les connexions individuelles et leurs formes d'interprétation — spécialement la théorie des graphes et ses mesures de centralité (la centralité de degré, la centralité d’intermédiarité et la centralité de vecteur propre) — de même que l'homophilie par statut entre chercheurs. Enfin, depuis l'analyse statistique, elle montre la corrélation des périodes de l'étude et des attributs socioprofessionnels des chercheurs étudiés (sexe, statut universitaire, affiliation institutionnelle, discipline d’appartenance, pays, région du Canada et ville de travail). Notamment, les résultats de notre thèse montrent que chaque catégorie de chercheurs possède ses propres particularités structurelles et discursives en ce qui a trait à ses pratiques de collaboration en réseau, et vont confirmer que les chercheurs senior, plus que les chercheurs junior, grâce à leur capital social mobilisé, ont conservé et obtenu plus d'avantages de leur réseau de cosignataires afin de s'adapter au changement institutionnel et mieux gérer leur travail de collaboration destiné à l’espace international, mais surtout à l'espace local.
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Ce mémoire de maitrise propose de faire une analyse féministe du concept de droit de la femme tel qu’il est conçu dans les théories des droits humains. Le paradigme libéral en théorie des droits humains sera critiqué parce qu’il contient des idéalisations inégalitaires. Cela mènera à aborder la question sous l’angle de droits humains spécifiques aux femmes. Cette investigation commencera par l’examen de la possibilité théorique de produire une théorie des droits de la femme plausible. L’importance de tenir compte des conditions non idéales du monde sera soulignée. Puis, une argumentation en faveur de droits socioéconomiques spécifiques sera faite. Enfin, cela mènera à une défense de l’approche des capabilités de Martha Nussbaum pour la protection des intérêts particuliers des femmes.
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Forest is essential for the healthy subsistence of human being on earth. Law has been framed to regulate exploitation of forest.This study is an analysis of the law relating to forest from an environmental perspective.Practical suggestions are also made for the better protection of forest .Forest is a valuable component of human environment.For healthy subsistence of human beings on earth it is essential that at least one third of the land area on earth should be under forest cover. Forest helps in keeping air and water fresh and climate good.The Indian Forest Act 1927 and State legislation relating to forest impose Governmental control over forests by classifying them into reserved forests. Protected forests and village forests.Effective environmental impact studies facilitate adoption of the practice of sustainable development.Permission should not be granted for a project before examination of its impact on the flora and fauna in forest.Kerala, much of the vested forest remains under the control of the State Government and are managed like reserved forests.Infrastructural facilities require improvement in almost all States for protecting forest.Inter-State problems can be minimised if a central forest legislation is applied uniformly throughout India.Voluntary organisations should be encouraged to taxe part actively in the programmes for conserving forest and wildlife.The new Forest Act should provide for effective environmental impact study before development projects are undertaken in forest areas. The guidelines for this should be clearly laid down in the Act.The law relating to forest should also clearly lay down the guidelines for implementing social forestry programmes. The Forest Department should be authorised to lease lands for planting useful trees. The new forest legislation should also recognise the traditional tribal rights in forest. The Indian Forest Act 1927 and the State legislation relating to forest with their outdated revenue policy and scheme should be replaced by such a new forest legislation framed with an environmental peres-pective. The new law should be uniformly applied throughout India .
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Housing is one of the primary human needs. It is second only to the need for food and clothing. From a macro perspective, housing is an industry that can prove itself to be a growth engine for a nation, particularly a developing nation like India. Housing has been one of the top priorities for the various governments in India since the seventies. The need for housing has been increasing at a phenomenal pace in India and so also the need for housing finance. Since the growth in supply of housing could not keep pace with the growth in its demand, housing shortage has been on the rise over the years. Housing finance industry which was relatively dormant till the early nineties underwent sweeping changes ever since the initiation of financial sector deregulation measures. Financial deregulation measures brought about several changes in this industry, the first and foremost being the fast growth rate in the industry coupled with cutthroat competition among the industry players. This trend has been quite prominent since the entry of commercial banks into this arena. Accordingly, there has been a surge in the growth of retail (personal) loans segment, particularly in respect of housing loans. This is evident from the fact that housing loans disbursed by banks as a percentage of their total loans has increased from just 2.79% as of end-March 1997 to as high as 12.52% as of end-March 2007. Thus, there has been an unprecedented growth rate in the disbursement of housing loans by banks, and as of 31 March 2007 the outstanding balance of housing loans by all banks in India stands at Rs.230689 Crore, as against just Rs.7946 Crore as of 31 March 1997, the growth rate being 35.82 %CAGR (for the eleven years’ period, FY 1997-‘2007). However, in spite of the impressive growth in housing finance over the years, there are growing apprehensions regarding its inclusiveness, i.e. accessibility to the common man, the underprivileged sections of the society to housing finance etc. Of late, it is widely recognized that formal housing finance system, particularly the commercial banks (CBs) – most dominant among the players – is fast becoming exclusive in operations, with nearly 90% of the total housing credit going to the rich and upper middle income group, primarily the salaried class. The case of housing finance companies (HFCs) is quite similar in this regard. The poor and other marginalized sections are often deprived of adequate credit facilities for housing purpose. Studies have revealed that urban housing poverty is much more acute than the rural probably because of the very fast process of urbanization coupled with constant rural to urban migration
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Designing is a heterogeneous, fuzzily defined, floating field of various activities and chunks of ideas and knowledge. Available theories about the foundations of designing as presented in "the basic PARADOX" (Jonas and Meyer-Veden 2004) have evoked the impression of Babylonian confusion. We located the reasons for this "mess" in the "non-fit", which is the problematic relation of theories and subject field. There seems to be a comparable interface problem in theory-building as in designing itself. "Complexity" sounds promising, but turns out to be a problematic and not really helpful concept. I will argue for a more precise application of systemic and evolutionary concepts instead, which - in my view - are able to model the underlying generative structures and processes that produce the visible phenomenon of complexity. It does not make sense to introduce a new fashionable meta-concept and to hope for a panacea before having clarified the more basic and still equally problematic older meta-concepts. This paper will take one step away from "theories of what" towards practice and doing and try to have a closer look at existing process models or "theories of how" to design instead. Doing this from a systemic perspective leads to an evolutionary view of the process, which finally allows to specify more clearly the "knowledge gaps" inherent in the design process. This aspect has to be taken into account as constitutive of any attempt at theory-building in design, which can be characterized as a "practice of not-knowing". I conclude, that comprehensive "unified" theories, or methods, or process models run aground on the identified knowledge gaps, which allow neither reliable models of the present, nor reliable projections into the future. Consolation may be found in performing a shift from the effort of adaptation towards strategies of exaptation, which means the development of stocks of alternatives for coping with unpredictable situations in the future.
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The nondestructive determination of plant total dry matter (TDM) in the field is greatly preferable to the harvest of entire plots in areas such as the Sahel where small differences in soil properties may cause large differences in crop growth within short distances. Existing equipment to nondestructively determine TDM is either expensive or unreliable. Therefore, two radiometers for measuring reflected red and near-infrared light were designed, mounted on a single wheeled hand cart and attached to a differential Global Positioning System (GPS) to measure georeferenced variations in normalized difference vegetation index (NDVI) in pearl millet fields [Pennisetum glaucum (L.) R. Br.]. The NDVI measurements were then used to determine the distribution of crop TDM. The two versions of the radiometer could (i) send single NDVI measurements to the GPS data logger at distance intervals of 0.03 to 8.53 m set by the user, and (ii) collect NDVI values averaged across 0.5, 1, or 2 m. The average correlation between TDM of pearl millet plants in planting hills and their NDVI values was high (r^2 = 0.850) but varied slightly depending on solar irradiance when the instrument was calibrated. There also was a good correlation between NDVI, fractional vegetation cover derived from aerial photographs and millet TDM at harvest. Both versions of the rugged instrument appear to provide a rapid and reliable way of mapping plant growth at the field scale with a high spatial resolution and should therefore be widely tested with different crops and soil types.
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The ongoing growth of the World Wide Web, catalyzed by the increasing possibility of ubiquitous access via a variety of devices, continues to strengthen its role as our prevalent information and commmunication medium. However, although tools like search engines facilitate retrieval, the task of finally making sense of Web content is still often left to human interpretation. The vision of supporting both humans and machines in such knowledge-based activities led to the development of different systems which allow to structure Web resources by metadata annotations. Interestingly, two major approaches which gained a considerable amount of attention are addressing the problem from nearly opposite directions: On the one hand, the idea of the Semantic Web suggests to formalize the knowledge within a particular domain by means of the "top-down" approach of defining ontologies. On the other hand, Social Annotation Systems as part of the so-called Web 2.0 movement implement a "bottom-up" style of categorization using arbitrary keywords. Experience as well as research in the characteristics of both systems has shown that their strengths and weaknesses seem to be inverse: While Social Annotation suffers from problems like, e. g., ambiguity or lack or precision, ontologies were especially designed to eliminate those. On the contrary, the latter suffer from a knowledge acquisition bottleneck, which is successfully overcome by the large user populations of Social Annotation Systems. Instead of being regarded as competing paradigms, the obvious potential synergies from a combination of both motivated approaches to "bridge the gap" between them. These were fostered by the evidence of emergent semantics, i. e., the self-organized evolution of implicit conceptual structures, within Social Annotation data. While several techniques to exploit the emergent patterns were proposed, a systematic analysis - especially regarding paradigms from the field of ontology learning - is still largely missing. This also includes a deeper understanding of the circumstances which affect the evolution processes. This work aims to address this gap by providing an in-depth study of methods and influencing factors to capture emergent semantics from Social Annotation Systems. We focus hereby on the acquisition of lexical semantics from the underlying networks of keywords, users and resources. Structured along different ontology learning tasks, we use a methodology of semantic grounding to characterize and evaluate the semantic relations captured by different methods. In all cases, our studies are based on datasets from several Social Annotation Systems. Specifically, we first analyze semantic relatedness among keywords, and identify measures which detect different notions of relatedness. These constitute the input of concept learning algorithms, which focus then on the discovery of synonymous and ambiguous keywords. Hereby, we assess the usefulness of various clustering techniques. As a prerequisite to induce hierarchical relationships, our next step is to study measures which quantify the level of generality of a particular keyword. We find that comparatively simple measures can approximate the generality information encoded in reference taxonomies. These insights are used to inform the final task, namely the creation of concept hierarchies. For this purpose, generality-based algorithms exhibit advantages compared to clustering approaches. In order to complement the identification of suitable methods to capture semantic structures, we analyze as a next step several factors which influence their emergence. Empirical evidence is provided that the amount of available data plays a crucial role for determining keyword meanings. From a different perspective, we examine pragmatic aspects by considering different annotation patterns among users. Based on a broad distinction between "categorizers" and "describers", we find that the latter produce more accurate results. This suggests a causal link between pragmatic and semantic aspects of keyword annotation. As a special kind of usage pattern, we then have a look at system abuse and spam. While observing a mixed picture, we suggest that an individual decision should be taken instead of disregarding spammers as a matter of principle. Finally, we discuss a set of applications which operationalize the results of our studies for enhancing both Social Annotation and semantic systems. These comprise on the one hand tools which foster the emergence of semantics, and on the one hand applications which exploit the socially induced relations to improve, e. g., searching, browsing, or user profiling facilities. In summary, the contributions of this work highlight viable methods and crucial aspects for designing enhanced knowledge-based services of a Social Semantic Web.
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Worldwide water managers are increasingly challenged to allocate sufficient and affordable water supplies to different water use sectors without further degrading river ecosystems and their valuable services to mankind. Since 1950 human population almost tripled, water abstractions increased by a factor of four, and the number of large dam constructions is about eight times higher today. From a hydrological perspective, the alteration of river flows (temporally and spatially) is one of the main consequences of global change and further impairments can be expected given growing population pressure and projected climate change. Implications have been addressed in numerous hydrological studies, but with a clear focus on human water demands. Ecological water requirements have often been neglected or addressed in a very simplistic manner, particularly from the large-scale perspective. With his PhD thesis, Christof Schneider took up the challenge to assess direct (dam operation and water abstraction) and indirect (climate change) impacts of human activities on river flow regimes and evaluate the consequences for river ecosystems by using a modeling approach. The global hydrology model WaterGAP3 (developed at CESR) was applied and further developed within this thesis to carry out several model experiments and assess anthropogenic river flow regime modifications and their effects on river ecosystems. To address the complexity of ecological water requirements the assessment is based on three main ideas: (i) the natural flow paradigm, (ii) the perception that different flows have different ecological functions, and (iii) the flood pulse concept. The thesis shows that WaterGAP3 performs well in representing ecologically relevant flow characteristics on a daily time step, and therefore justifies its application within this research field. For the first time a methodology was established to estimate bankfull flow on a 5 by 5 arc minute grid cell raster globally, which is a key parameter in eFlow assessments as it marks the point where rivers hydraulically connect to adjacent floodplains. Management of dams and water consumption pose a risk to floodplains and riparian wetlands as flood volumes are significantly reduced. The thesis highlights that almost one-third of 93 selected Ramsar sites are seriously affected by modified inundation patterns today, and in the future, inundation patterns are very likely to be further impaired as a result of new major dam initiatives and climate change. Global warming has been identified as a major threat to river flow regimes as rising temperatures, declining snow cover, changing precipitation patterns and increasing climate variability are expected to seriously modify river flow regimes in the future. Flow regimes in all climate zones will be affected, in particular the polar zone (Northern Scandinavia) with higher river flows during the year and higher flood peaks in spring. On the other side, river flows in the Mediterranean are likely to be even more intermittent in the future because of strong reductions in mean summer precipitation as well as a decrease in winter precipitation, leading to an increasing number of zero flow events creating isolated pools along the river and transitions from lotic to lentic waters. As a result, strong impacts on river ecosystem integrity can be expected. Already today, large amounts of water are withdrawn in this region for agricultural irrigation and climate change is likely to exacerbate the current situation of water shortages.
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Els autors s’endinsen en aquest article en l’estudi de les relacions entre geografia, orientalisme i colonialisme a Europa al tombant del segle passat, tot introduint la perspectiva de gènere i en el marc d'un interès més general per la història del pensament geogràfic contemporani. Ho fan a partir de l’anàlisi contextualitzada d'un text de l’època que fa referència al cas espanyol i a la seva aventura colonial africana. Es tracta del llibre El Marroc sensual i fanàtic (1936) d’Aurora Bertrana, una versió molt elaborada del discurs de la diferència i una bona il•lustració de la literatura de viatges de dones europees, força excepcional i atípica -això sí- en el context literari català i espanyol de l’època
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Introducción: Uno de los aspectos con mayor variación durante la adolescencia es el sueño, el cual se ve afectado por factores biológicos así como por los estados afectivos y emocionales. En esta etapa, los individuos establecen sus primeras relaciones sentimentales románticas, vínculos esenciales para la maduración de las relaciones sociales y psicosexuales. Este trabajo busca determinar la asociación existente entre las relaciones sentimentales románticas y sus características, con la calidad sueño percibida por los jóvenes. Metodología: Estudio realizado en una población de 1794 estudiantes de ciencias de la salud entre los 18 y 25 años de edad en Bogotá, Colombia, entre 2012 y 2013. Se obtuvo una muestra probabilística con asignación proporcional de 443 sujetos, estratificada por programa académico y sexo. Utilizando dos cuestionarios de auto reporte se exploraron las características de las relaciones sentimentales y la calidad de sueño percibida. Resultados: El 64% (IC 95%: 59,4-68,9%) de la población estudiada se encontró en una relación sentimental romántica. Estos sujetos tuvieron latencias de sueño prolongadas con menor frecuencia que quienes no tenían en una relación (p <0,05). La calidad de sueño percibida se asoció al nivel de satisfacción que tuvieron los sujetos en su relación, así como la atracción por su pareja. Rasgos obsesivos, ansiosos, temerosos y evitativos en la relación disminuyeron la calidad de sueño percibida. Conclusión: Las relaciones sentimentales románticas y sus características se asocian con la calidad de sueño percibida por los individuos. Se requieren estudios que determinen causalidad en esta asociación y definan potenciales estrategias de intervención al respecto.
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El objetivo de la presente investigación consiste en describir las características de un asesino en serie colombiano desde la perspectiva psicodinámica. En este sentido, el abordaje teórico realizado en este trabajo se compone inicialmente de una concepción de asesinos en serie, posteriormente se hace una revisión acerca de las bases biológicas y los factores sociales del homicida serial, igualmente, se explican tres teorías psicodinámicas a trabajar (Sigmund Freud y Erick Erickson). Finalmente, se hace mención dentro de la investigación a la comparación casuística de los asesinos en serie, teniendo en cuenta a cuatro asesinos en serie mediante el abordaje psicodinámico. Por otra parte, a nivel metodológico, el tipo de estudio realizado es descriptivo con un corte cualitativo y un diseño no experimental, basado en la revisión de fuentes bibliográficas. Como producto se pretende hacer una aproximación al perfil correspondiente de la personalidad de un asesino en serie colombiano mediante las teorías psicodinámicas.
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El siguiente trabajo pretende, mediante la revisión de diferentes fuentes bibliográficas, mostrar las distintas categorías en las que la muerte se trabaja dentro de la psicoterapia fenomenológico existencial. Es así como se hace un recorrido por los antecedentes filosóficos de este enfoque psicoterapéutico, las diferentes escuelas que dentro de él se desarrollan y sus planteamientos frente a la muerte, las maneras de morir, la muerte y el ciclo vital, y los avances actuales como la Teoría del Manejo del Terror (TMT) . Todos estos elementos se revisan para después ser relacionados y así proponer una serie de acciones prácticas a llevar a cabo dentro del encuentro psicoterapéutico con miras a un trabajo adecuado y productivo con la muerte desde una perspectiva existencial.