938 resultados para Comparative studies
Resumo:
This study explained the diversity of corporate financial practices in two nations. Existing studies have emphasized the reliance on equity finance in U.S. firms and bank loans in Japanese firms. In fact, patterns of corporate finance were much more complex. Financial institutions, which were created by national economic policy and regulation, affected corporate financial practices, but corporate financial practices often differed from what policymakers expected. Differences in corporate financial practices between nations also reflected differences in the mixture of industries in each nation. Many factors such as the amount of fixed capital, the process of production, the level of risk, the degree of innovation, and the importance of the industry in the national economy affected corporate financial practices. In addition, corporate financial practices within each nation differed from firm to firm due to managers’ considerations about stock ownership, which would affect their control power; corporate finance was closely related to control over management through ownership. To explain these complexities of corporate financial practices, the study linked corporate finance with the development of financial institutions in the United States and in Japan. While financial institutions affected corporate financial practices, the response of the firms to financial institutions and opportunities were diverse. The study also attempted to grasp variations in corporate financial practices by dealing with companies in three sectors: railroads, public utilities, and manufacturing. Finally, the study examined the structure of firm ownership. Contradictory to the widely held belief that U.S. firms distributed securities more widely to the public than did Japanese firms, many large American firms remained closely held, while some Japanese counterparts built publicly-held corporations.
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The International Coffee Agreements (ICA) involved the majority of nations producing and consuming coffee and provided relative economic stability to the coffee sectors of the exporting Third World countries. This study focuses on the serious impact of the 1989 collapse of the ICA on the domestic coffee sectors of Colombia and Cote d'Ivoire. In particular, the dissertation examines the role of the Colombian and Ivoirian coffee parastatals, the Federacion Nacional de Cafeteros de Colombia and the Caisse de Stabilisation et Soutien des Prix des Produits Agricoles, during the crisis and their transformation by it. The theoretical framework employed in this study is borrowed from the literature on state-society relations. The methodology includes: in-depth analysis of the historical roles of the parastatal agencies in coffee production, state-society relations and economic development in Colombia and Côte d'Ivoire; interviews with parastatal administrators, producers and other knowledgeable informants in both countries; and a comprehensive review of newspaper articles and official statements of coffee policy published in Colombia and Côte d'Ivoire prior to, during, and after the crisis. The Colombian and Ivoirian coffee sectors and their producers faced serious economic and social problems following the drop in coffee prices. The coffee parastatals in Colombia and Côte d'Ivoire first lost some of their responsibilities following the world coffee crisis. The Caisse was in the end eliminated while FEDECAFE struggled to remain in existence. Along the way, both entities faced protests from disgruntled coffee producers, who organized politically for the first time in their nations' histories. I argue that the outcome for the parastatals depended in part on the conditions of their formation, particularly the level of societal involvement in their creation. I also posit that the country's dependence on foreign aid played a key role in the fate of the parastatals. This dissertation concludes that developments in the Colombian and Ivoirian coffee sectors have significantly contributed to the creation of the difficult political and economic conditions of both countries today.
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In the last two decades, the field of homogeneous gold catalysis has been
extremely active, growing at a rapid pace. Another rapidly-growing field—that of
computational chemistry—has often been applied to the investigation of various gold-
catalyzed reaction mechanisms. Unfortunately, a number of recent mechanistic studies
have utilized computational methods that have been shown to be inappropriate and
inaccurate in their description of gold chemistry. This work presents an overview of
available computational methods with a focus on the approximations and limitations
inherent in each, and offers a review of experimentally-characterized gold(I) complexes
and proposed mechanisms as compared with their computationally-modeled
counterparts. No aim is made to identify a “recommended” computational method for
investigations of gold catalysis; rather, discrepancies between experimentally and
computationally obtained values are highlighted, and the systematic errors between
different computational methods are discussed.
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This thesis explores the theme of social paranoia as depicted in the Absurdist fiction of Cold War America and Soviet Russia. The central hypothesis informing this research maintains that, despite the ideology of moral and cultural “Otherness” constructed and reinforced by both nations throughout much of twentieth century, the US and the Soviet Union more often than not functioned as mirror images of paranoia and suspicion. Much of the fiction produced in Russia from the Revolution onwards and in the US during the Cold War period highlights how these two ostensibly irreconcilable nations were consumed by similar fears and gripped by an equally pervasive paranoia. These parallel conditions of anxiety and mistrust led to a surprising congruity of literary responses, which transcended the ideological divide between capitalism and communism and, as such, underscored the homogeny of fear which lay beneath the façade of constructed difference. I contend that, because Soviet Russia and the America of the Cold War period were nations consumed by fear and suspicion, authors living in both countries became preoccupied by the mechanics of such deeply paranoid societies. Consequently, much of the fiction of the US and the Soviet Union during this period was preoccupied with the themes of paranoia, conspiracy, intensive bureaucracy and the politicisation of science, which resulted in the terror of the Nuclear Age. This thesis explores how these central themes unite apparently diverse literary texts and illustrate the uniformity of terror which transcended both the physical and ideological boundaries separating the United States and the Soviet Union. In doing so, this research focuses primarily on the multi-faceted manifestations of paranoia in selected works by Soviet authors Mikhail Bulgakov, Daniil Kharms and Yuli Daniel, and American authors Joseph Heller, Thomas Pynchon and Kurt Vonnegut. Focusing on key works by each author, this research considers these texts as products of two culturally diverse, yet equally paranoid societies and explores their preoccupation with issues of spying, infiltration and conspiracy. This thesis thus emphasises how these authors counter simplistic notions of Cold War Otherness by revealing two nations possessed by a similar sense of vulnerability and insecurity. Furthermore, this thesis examines how this social anxiety is reinforced by the way in which these authors position issues such as the mechanics of the bureaucratic system and clandestine scientific experimentation as the focal point of the paranoid imagination. Ultimately, by examining the concordance of paranoiac representation in America and the Soviet Union during this period, I demonstrate that these ostensibly divergent nations harboured similar fears and insecurities.
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Background: There is growing evidence that individual EEG differences may aid in classifying patients with major depressive disorder (MDD) and also help predict clinical response to antidepressant treatment. This study aims to compare the effectiveness of EEG frequency band power, alpha asymmetry and prefrontal theta cordance towards escitalopram response prediction and MDD diagnosis, in a multi-site initiative. Methods: Resting EEG (eyes open and closed) was recorded from 64 electrodes in 44 depressed patients and 20 healthy controls at baseline, 2 weeks post-treatment and 8 weeks post-treatment. Clinical response was measured as change from baseline MADRS of 50% or more. EEG measures were analyzed (1) at baseline (2) at 2 weeks post-treatment and (3) as an ‘‘early change” variable defined as change in EEG from baseline to 2 weeks post-treatment. Results: At baseline, responders exhibited greater absolute alpha power in the left hemisphere versus the right while non-responders showed the opposite. Responders further exhibited a cortical asymmetry of greater right relative to left activity in parietal areas. Groups also differed in baseline relative delta power with responders showing greater power in the right hemisphere versus the left while non-responders showed the opposite. At 2 weeks post-treatment, responders exhibited greater absolute beta power in the left hemisphere relative to right and the opposite was noted for non-responders. The opposite pattern was noted for absolute and relative delta power at 2 weeks post-treatment. Responders exhibited early reduction in relative alpha power and early increments in relative theta power. Non-responders showed a significant early increase in prefrontal theta cordance. Absolute delta power helped distinguish MDD patients from healthy controls. Conclusions: Hemispheric asymmetries in the alpha and delta bands at pre-treatment baseline and at 2 weeks post-treatment have moderate to moderately strong predictive utility towards antidepressant treatment response. These findings have significant potential for improving clinical practice in psychiatry by eventually guiding clinical choice of treatments. This would greatly benefit patients awaiting relief from depressive symptoms as treatment optimization would help overcome problems associated with delayed recovery. Our results also indicate that resting EEG activity may have clinical utility in predicting MDD diagnosis.
Resumo:
Principals play a key role in schools. Their actions affect the efficacy of schools and indirectly on the students’ academic performance. Numerous studies describe the different activities that principals perform in their daily practice, grouping them in dimensions, not existing unanimity neither around the practices carried out nor the dimensions. In Spain, the new educational law, LOMCE, emphasizes the importance of looking into what international research says regarding the field of education to support the need for change and justify the ones that are being made, and develops an extended list of competences of the principal. This study is a synthesis of a narrative research with the following analysis unit: the results of the PISA (Programme for International Student Assessment) and TALIS (Teaching and Learning International Study) international reports, and the data provided on school leadership and their practices, from which conclusions are inferred, comparing them with the competences stated in the LOMCE. The comparative analysis of the leadership practices presented depicts a still uneven and heterogeneous scenario, not existing agreement neither for the setting of boundaries for the leadership dimensions, nor for the number of practices that constitute them. Such a scenario points towards the need for further empirical research, in order to accurately obtain a homogeneous catalogue of the actions carried out by principal, that may open the door to the development of the role of principal, and to the improvement of effectiveness and performance of schools, as it is suggested internationally, and it is an objective of the new educational law.
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Comparative genomic hybridization (CGH) studies have demonstrated a high incidence of chromosomal imbalances in non-Hodgkin's lymphoma. However, the information on the genomic imbalances in Burkitt's Lymphoma (BL) is scanty. Conventional cytogenetics was performed in 34 cases, and long-distance PCR for t(8;14) was performed in 18 cases. A total of 170 changes were present with a median of four changes per case (range 1-22). Gains of chromosomal material (143) were more frequent than amplifications (5) or losses (22). The most frequent aberrations were gains on chromosomes 12q (26%), Xq (22%), 22q (20%), 20q (17%) and 9q (15%). Losses predominantly involved chromosomes 13q (17%) and 4q (9%). High-level amplifications were present in the regions 1q23-31 (three cases), 6p12-p25 and 8p22-p23. Upon comparing BL vs Burkitt's cell leukemia (BCL), the latter had more changes (mean 4.3 +/- 2.2) than BL (mean 2.7 +/- 3.2). In addition, BCL cases showed more frequently gains on 8q, 9q, 14q, 20q, and 20q, 9q, 8q and 14q, as well as losses on 13q and 4q. Concerning outcome, the presence of abnormalities on 1q (ascertained either by cytogenetics or by CGH), and imbalances on 7q (P=0.01) were associated with a short survival.
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Qualitative Comparative Analysis (QCA) is a method for the systematic analysis of cases. A holistic view of cases and an approach to causality emphasizing complexity are some of its core features. Over the last decades, QCA has found application in many fields of the social sciences. In spite of this, its use in feminist research has been slower, and only recently QCA has been applied to topics related to social care, the political representation of women, and reproductive politics. In spite of the comparative turn in feminist studies, researchers still privilege qualitative methods, in particular case studies, and are often skeptical of quantitative techniques (Spierings 2012). These studies show that the meaning and measurement of many gender concepts differ across countries and that the factors leading to feminist success and failure are context specific. However, case study analyses struggle to systematically account for the ways in which these forces operate in different locations.
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Localisation is the process of taking a product and adapting it to fit the culture in question. This usually involves making it both linguistically and culturally appropriate for the target audience. While there are many areas in video game translations where localisation holds a factor, this study will focus on localisation changes in the personalities of fictional characters between the original Japanese version and the English localised version of the video game Final Fantasy XIV: A Realm Reborn and its expansion Heavensward for PC, PS3 and PS4. With this in mind, specific examples are examined using Satoshi Kinsui's work on yakuwarigo, role language as the main framework for this study. Five non-playable characters were profiled and had each of their dialogues transcribed for a comparative analysis. This included the original Japanese text, the officially localised English text and a translation of the original Japanese text done by myself. Each character were also given a short summary and a reasoned speculation on why these localisation changes might have occurred. The result shows that there were instances where some translations had been deliberately adjusted to ensure that the content did not cause any problematic issues to players overseas. This could be reasoned out that some of the Japanese role languages displayed by characters in this game could potentially cause dispute among the western audience. In conclusion, the study shows that localisation can be a difficult process that not only requires a translator's knowledge of the source and target language, but also display some creativity in writing ability to ensure that players will have a comparable experience without causing a rift in the fanbase.
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[EN] Background: Plasma biochemical and hematologic variables are important in the management of endangered sea turtles, such as loggerheads. However, studies on blood biochemistry and hematology of loggerheads are limited, and different concentrations according to variable criteria have been reported. Objective: The purpose of this study was to establish and compare baseline plasma chemistry and hematology values in Eastern Atlantic juvenile and adult nesting loggerhead sea turtles (Caretta caretta).
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This study is a corpus-based comparison between student essays written in the subject areas of English linguistics and literature at undergraduate level. They are 200 Bachelor degree theses submitted at a variety of university departments (such as English, Language and Literature, Humanities, Social and Intercultural Studies) in Sweden. The comparison concerns frequencies of core modal verbs and how often they occur together with the I, we and it subject pronouns and in the structures this/the [essay, study, project, thesis] when students attempt to communicate their personal claims. Quantitative and qualitative analyses of the essays show few similarities in the ways that core modal verbs appear in both disciplines. The results indicate mainly distinct differences, especially in relation to clusters and variation of performative verbs. Specific patterns in the ways that students use core modal verbs as hedges have also been identified.
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Cette thèse tente de comprendre l’impact des restructurations des entreprises multinationales sur les stratégies syndicales. Les acteurs syndicaux locaux sont-ils déterminés par l’appartenance à des régimes nationaux et à des contingences organisationnelles ou peuvent-ils influencer des décisions objectives comme les restructurations ? Cette recherche s’insère dans une problématique large qui fait la jonction entre la mondialisation économique sur une base continentale, la réorganisation productive des entreprises multinationales et l’action syndicale. Au plan théorique, nous confrontons trois grandes approches analytiques, à savoir : le néo-institutionnalisme et les structures d’opportunités ; l’économie politique critique et la question du pouvoir syndical ; la géographie économique critique mettant de l’avant les contingences, l’encastrement et l’espace concurrentiel. Sur la base de ces trois familles, nous présentons un modèle d’analyse multidisciplinaire. Au plan méthodologique, cette thèse est structurée autour de quatre études de cas locales qui ont subi des menaces de restructurations. Cette collecte a été effectuée dans deux pays (la France et le Canada) et dans un secteur particulier (les équipementiers automobiles). Trois sources qualitatives forment le cœur empirique de cette thèse : des statistiques descriptives, des documents de sources secondaires et des entretiens semi-dirigés (44), principalement avec des acteurs syndicaux. L’analyse intra et inter régime national éclaire plusieurs aspects de la question des stratégies syndicales en contexte de restructurations. Les principales contributions de cette thèse touchent : 1. l’impact des facteurs relationnels et des ressources de pouvoir développées par les syndicats locaux sur les structures d’opportunités institutionnelles; 2. l’importance des aspects « cognitifs » et d’envisager le pouvoir de manière multi-niveaux; 3. l’importance de l’encastrement social et des dynamiques relationnelles entre syndicats et patronats; 4. l’influence de la concurrence internationale/nationale/régionale/locale dans le secteur des équipementiers automobiles; et 5. l’importance des arbitrages et des relations entre les acteurs de l’entreprise par rapport à la théorie de la contingence pour comprendre les marges structurelles des syndicats locaux. Notre recherche invite les acteurs sociaux à repenser leur action dans le cadre des restructurations. En particulier, les syndicats locaux se doivent d’explorer de nouveaux répertoires stratégiques pour répondre aux nombreux défis que posent le changement économique et les restructurations.
Resumo:
Dans les dernières années, les études sur les maladies neurodégénératives telles que la maladie d’Alzheimer (MA) et la maladie de Parkinson sans démence (MP) et avec démence (MPD) ont été nombreuses, mais la différenciation de ces patients sur la base de leur profil cognitif doit être encore améliorée. Effectivement, l’évaluation clinique peut s’avérer difficile en raison du peu de spécificité dans la présentation de leurs déficits neuropsychologiques. Ceci s’explique par la variabilité et le chevauchement des processus cliniques et pathologiques affectant essentiellement les mêmes régions/fonctions, soit celles liées aux lobes temporaux médians (LTM)/Mémoire (fonction LTM/Mémoire) et aux lobes frontaux (LF)/Fonctions exécutives (fonction LF/Exécutive). Toutefois, il existerait une distinction critique au niveau de l’intégrité relative de ces fonctions dans ces maladies neurodégénératives, ce qui permettrait d’identifier des déficits cognitifs spécifiques à la MA, la MP et la MPD. La présente thèse s’inscrit dans cette volonté de caractériser les profils cognitifs propres à la MA, la MP et la MPD, plus précisément par l’étude novatrice de la mémoire de source et des faux souvenirs. Les quatre chapitres qui composent cette thèse servent donc à documenter la nature de ces mécanismes mnésiques, leurs patrons de performance spécifiques dans la MA, la MP et la MPD, et leur sensibilité aux atteintes des fonctions LTM/Mémoire et LF/Exécutive. Ainsi, le Chapitre I démontre la pertinence d’étudier la mémoire de source et les faux souvenirs dans la MA, la MP et la MPD, en décrivant leurs interactions avec les fonctions LTM/Mémoire et LF/Exécutive, toutes les deux atteintes dans ces maladies. Le Chapitre II, présenté sous forme d’article, révèle des déficits en mémoire de source chez des patients MP, mais seulement dans l’une des tâches employées. Également, malgré des atteintes des fonctions LF/Exécutive et LTM/Mémoire, il est démontré que seule la fonction LTM/Mémoire est liée à l’altération de la mémoire de source chez les patients MP. Le Chapitre III, également sous forme d’article, illustre un taux anormal de faux souvenirs chez des patients MA, tandis que chez des patients MP et MPD, il est démontré qu’ils ont un taux de faux souvenirs comparable à celui des participants contrôles. Il est également rapporté que malgré l’atteinte de la fonction LF/Exécutive chez les patients MA, MP et MPD, elle est seulement liée à l’augmentation des faux souvenirs chez les patients MA. Finalement, dans le dernier Chapitre (IV), les résultats obtenus sont discutés dans leur ensemble à la lumière des prédictions et connaissances actuelles, tout en identifiant les limites afin d’orienter les perspectives de recherche.
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Adaptive management has been defined and redefined in the context of natural resource management, yet there are few examples of its successful application in ecological restoration. Although the 2009 Delta Reform Act now legally requires adaptive management for all restoration efforts in the Sacramento-San Joaquin Delta, in California, USA, projects in this region still encounter problems with implementation. We used a comparative case study analysis to examine adaptive management planning and implementation both in and around the Delta, assessing not only why adaptive management is not yet well implemented, but also what changes can be made to facilitate the adaptive management approach without sacrificing scientific rigor. Adaptive management seems to be directly and indirectly affected by a variety of challenges and convoluted by ambiguity in both planning documents and practitioner’s interpretations of the concept. Addressing these challenges and ambiguities at the project level may facilitate the adaptive management process and help make it more accessible to practitioners.
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