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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
501

A Comparative Study on Two Offshore Wind Farm Siting Approaches in Sweden / En jämförande studie av två tillvägagångssätt för siting av havsbaserade vindkraftsparker i Sverige

Nyberg, Anders, Sundström, Oskar January 2023 (has links)
This study aims to explore the ability of a multi-criteria decision making with analytical hierarchy process (MCDM-AHP) model to emulate the results of a cost benefit analysis (CBA) model in the context of offshore wind farm siting within the Swedish exclusive economic zone (EEZ). The research question addressed is whether the MCDM-AHP analysis produces similar results to the CBA analysis. In addition to this, the strengths and weaknesses of each model is explored. The MCDM-AHP model employs the spatial criteria in a more basic manner compared to the CBA model, simplifying the evaluation process while still explaining 89.5% of the variation in the CBA model and defining similar areas as suitable. Thus, it can be concluded that the MCDM-AHP model adequately emulates the CBA model within the context of offshore wind farm siting within the Swedish EEZ. However, it is crucial to note that the two models produce outputs on different scales. While the CBA model provides levelized cost of energy (LCOE) values that can be thresholded for investment viability comparisons, the suitability score generated by the MCDM-AHP model remains a relative and arbitrary score within the model. Both models entail uncertainties, limiting their usage beyond making general assumptions or identifying areas of interest. The findings reveal that the CBA model demonstrates greater robustness when confronted with changes in spatial input parameters compared to the MCDM-AHP model. This discrepancy is attributed to the iterative computation process and consideration of flat cost inputs in the CBA model, whereas the MCDM-AHP model represents a linear combination of various spatial parameters. However, the calculated LCOE values in the CBA model are highly sensitive to changes in modeling assumptions regarding external parameters, resulting in significant linear variations. The LCOE values obtained from the CBA model baseline case fall within a range of 52.1 - 98.9 EUR/MWh, which aligns with similar studies, validating the CBA model. Nonetheless, caution should be exercised when considering these results as an accurate representation of the real world due to inherent uncertainties in cost inputs and the LCOE measure. The strengths of the MCDM-AHP model lie in its robustness when the order of relative importance remains stable for key spatial evaluators. It is sensitive to significant changes in water depth and wind speed, which heavily influence its output. The model's simplicity allows for a quick overview of the problem, but it requires assumptions that introduce uncertainties. Validation of the MCDM-AHP model using existing and planned offshore wind farms within the Swedish EEZ was possible but limited by the arbitrary scale and limited validation areas. The comparison between the two models could be enhanced with more comprehensive spatial and economic data for an in-depth CBA model, which could serve as a ground truth for the MCDM-AHP model. Nevertheless, the comparison made in this study considers the CBA model to be closer to the truth, acknowledging the underlying assumptions that should be considered during evaluation. In conclusion, within the context of offshore wind farm siting, the MCDM-AHP model produces outputs that are similar to the CBA model.
502

Effectiveness of varied refugia configurations for the genetically modified maize (Zea mays L.) in Kwa-Zulu-Natal midlands

Moodley, Odeshnee 11 1900 (has links)
Genetically modified (GM) white and yellow maize, Zea mays, has been commercially released and cultivated in South Africa since 1997/1998. The traits expressed are insect resistance and herbicide tolerance conferred by the bacteria Bacillus thuringiensis (Bt) Cry genes and Agrobacterium 5-enolpyruvylshikimate-3-phosphate (EPSP) synthase gene, respectively. The Cry genes have been used widely to control lepidopteran insect pests but insect resistance to GM Bt crops has been a concern since the introduction of this technology. A management strategy includes refugia planting of 5% non-Bt plants, with no insecticide application, and 20%, where insecticide application is allowed. These refugia are designed to allow the survival of insect pests within restricted planted zones. However, in South Africa there are reports of Bt-resistant stem borer (Busseola fusca) (Fuller) (Lepidoptera: Noctuidae) and non-compliance with refuge planting. The aims of this study were two-fold: 1. To conduct a survey among KwaZulu-Natal (KZN) GM maize growers to ascertain information such as level of compliance with refuge planting and to determine which refugia were predominantly planted and reasons thereof; 2. To conduct a replicated field trial to determine yield, insect borer damage and economic benefit of the 5% unsprayed and 20% sprayed refuge options (including three configurations namely strip, perimeter and block and a 5 and 20% ‘refuge-in-a-bag’ option). The survey indicated that 28 out of 29 (96.6%) KZN Bt maize growers plant the 5% non-sprayed refuge with 27 (96.4%) of those respondents planting the strip configuration for the purpose of insect management (75%) and ease of planting (32.2%). The survey also showed that 7 (seven) i.e. 21.9% of KZN Bt maize growers observed borer damage and although growers are now fully compliant with refugia planting requirements, initially 7 respondents (24.1%) did not comply with or plant refugia correctly. Furthermore, 7 respondents reported insect borer damage in their maize with 4 of the 7 instances (57.1%) likely stemming from incorrectly planted refugia. vii No significant differences in yield or insect damage were observed between the 5 and 20% refugia for any of the planting configurations in the field trial. However due to costs involved with insecticide application and labour required for the operation in the 20% option, these treatments were less economically advantageous than the non-Bt control. The 20% block and strip configurations had a cost benefit ratio of ZAR 7.21 and ZAR 6.67 respectively, earned per R1 spent by the grower compared with ZAR 7.76 in the sprayed control. The cost-benefit comparison for the 5% block and strip configurations was ZAR 8.48 and ZAR 7.71, respectively compared with ZAR 9.44 in the unsprayed control. In addition, the 20% seed mixture limited borer damage to 4.95% when compared with 15.77% damage in the sprayed control (ANOVA, F pr = 0.124). The seed mixtures are not available commercially and the results from the survey indicated that some education and marketing by the seed companies would be advisable prior to their release to the farming community. In order to determine which of the refuge options between 5 and 20% would be more advantageous for growers overall, regardless of the planting configuration; data were grouped and analysed. There were no significant differences in either the yield or insect damage for the 5 and 20% refugia, but the cost-benefit calculations indicated that the 5% option was more cost effective – for the 5 and 20% refugia, ZAR 7.97 and ZAR 7.15 respectively, earned per ZAR 1 spent by the grower (ANOVA, F pr. = 0.03). This is because no insecticide was used in the 5% treatments. Mean ear damage comparisons between the 5 and 20% refugia showed that the 20% refuge in the perimeter configuration incurred the least damage (2.65% ear damage) compared with 5% perimeter (10.86% ear damage), although the reasons for this are not clear. While the results of the field trials showed no significant differences in insect damage and yield with regard to choice of refuge configuration, monitoring insect resistance management remains an integral part of Bt maize crops in South Africa, in order to delay further resistance development and to prolong the viability of Bt technology. / Agriculture and  Animal Health / M. Sc. (Agriculture)
503

數位權利管理(DRM)系統可行性研究-從技術、法律和管理三面向剖析 / A Study on the Feasibility of Digital Rights Management (DRM) Systems-From Technological, Legal and Management Aspects

郭祝熒, Kuo,Melody C.Y. Unknown Date (has links)
在數位內容下載市場蓬勃發展的同時,非法傳輸的流量亦不惶多讓,是以DRM機制成為了著作權利人進入網路世界的絕佳後盾,以DRM提高複製的門檻,並據以實施其商業模式,故於各數位內容核心產業皆可見DRM應用之蹤跡,卻同時引發了究竟DRM是Digital “Rights” Management 亦或Digital “Restriction” Management的爭議。是天使?或是惡魔?便形成了人們對於DRM的不同觀感。 本研究係從技術、法律以及管理三個面向分別切入,由技術面看DRM保護著作物之極限何在,由法律面看相關科技保護措施之立法造成何種影響,合理使用的空間是否因DRM之實施而造成限縮,接著由管理面向看DRM在數位內容產業價值鏈中所扮演之角色及其與價值鏈上各端權力角力衝突之關係,最後由標準面看目前DRM相關標準的運作以及互通性標準的發展趨勢。並從個案研究觀察DRM在不同產業情境中的應用。 本研究認為,DRM技術本身是中性的,其關鍵在於商業設計運用。而在盜版問題無法完全根絕之情況下,以DRM作為因應之道將使得受限內容之經濟價值不若自由流通之內容,因為內容產業的發展關鍵在於「人氣」,而盜版永遠無法取代創意與使用者對於內容之需求。因此,既然無法防堵非法傳輸之現象,則不妨與之直接面對面進行作戰,權利人既掌握了關鍵的內容,則可以針對盜版的弱點提供更優質的服務。就我國目前數位內容產業發展之情境來看,現階段或許有採取DRM進行保護的必要性,以便在推動合法消費市場之際,平衡兼顧保護著作權人以及著作利用人之權益。然而,在虛擬世界中欲全面防堵非法散佈有其技術上之侷限性,消費者亦多半養成了免費取得之使用模式與心態,因此長期而言,或許應設法從創新的商業模式來扭轉此態勢。 / Though the use of digital rights management (DRM) has been controversial, it is still widely used in the digital world. Advocates think of DRM as an indispensable way to prevent unauthorized duplication and dissemination of copyrighted works while opponents often suggest that the term “rights” should be replaced by “restriction” to best describe how DRM works. This thesis aims to analyze the issues of DRM from three perspectives. First starting with the technical point of view to see how DRM works and found out that DRM technology does have its limitation for copyright protection. That’s the reason why treaties and legislations such as the WCT, WPPT, and DMCA are needed to build the last ditch in the war with piracy. However, the attempt backfired as companies other than rights holders used it as a way to prevent market competition. As the rights holders can effectively control the access of their work with DRM, there comes another dispute about the “Paracopyright” effect. Most important of all, the use of DRM divests the users of the rights they had in the analog world, such as simply lending a book to a friend. From the perspective of management, a cost benefit analysis indicates that the benefit of using DRM to prevent unauthorized duplication obviously overwhelms by its cost and risk. In the context where the content providers, service providers, and device manufacturers all attempt to dominate the whole value chain, DRM also became one of the most powerful instruments for that purpose. Closed ecosystems are built one after another especially in the online music industry in order to bundle the consumers with specific players and music services and thus caused the antitrust issue. The online music industry and the e-book industry were chosen as case studies in the fourth chapter of the thesis. Based on different industry context, DRM strategy and its impact would differ and therefore results in a variety of business models. For example, the consumers in the US are relatively more aware of the use of DRM and are more willing to pay for authorized content. In contrast, the awareness of DRM of consumers in Taiwan is much lower and the price they are willing to pay is also far lower than what the music labels can accept. As a result, the streaming model prevails over pay-per-download model in the online music market of Taiwan. And the feasibility and necessity of DRM also varies in different industries. Before the digitalization of books, authors already had libraries providing free copies as piracy do today, and the prevalence of scanning machines and copy machines makes it even harder to prevent illegal file sharing. Accordingly, there is far less reason to use DRM in the e-book industry than in the online music industry. DRM technology is neutral in itself, and the key point is how it is designed based on different business models. The defect of DRM is neither a technical nor a legal issue, but rather a business issue. As piracy can never be eradicated, coping it with DRM would only make the value of restricted contents much less than freely distributed contents. Popularity is what really matters in the content industry. DRM has its technical limit and causes so many legal issues accompanied with the cost and risk of maintaining such fragile systems. What rights holders have in hand are the creativity and the market’s need for new content, which could never be replaced by piracy. So why not fight it face to face? Digital content industry is considered one of the most promising industries in Taiwan. However, local consumers have entrenched mindset of “free” contents. In present context, DRM is somehow needed while promoting the growth of legal market, in order to provide sufficient incentive to enrich the society with more and more creativity, and fairly protect both the rights of content providers and content users. But in the long run, a more creative or even subversive business model should be the solution to meet the trend of digital convergence.
504

Recherche économique en santé cardiovasculaire

Guertin, Jason Robert 02 1900 (has links)
Les nouvelles technologies médicales contribuent aux dépenses en santé qui ne cessent de croître, alors que les budgets se trouvent limités. L’évaluation économique des technologies devraient permettre d’identifier quelles sont celles qui sont les plus rentables. Malgré cela, plusieurs technologies dont le rapport coût-efficacité reste plutôt limite ou défavorable sont utilisées en médecine moderne et remboursées par notre système public de santé. Ce mémoire se concentre sur deux technologies en santé cardiovasculaire dont le rapport coût-efficacité est plutôt limite mais qui sont fréquemment utilisées au Canada; les tuteurs médicamentés ou pharmaco-actifs et les défibrillateurs cardiaques implantables (DCI). Nous avons fait une évaluation contingente de ces technologies dans le but d’examiner si ce type d’évaluation économique complémentaire pouvait procurer un point de vue nouveau sur la valeur économique et sociétaire des ces technologies. Les résultats de ces deux évaluations indiquent que les patients accordent une grande importance aux bénéfices que procurent ces deux technologies. Nos résultats soutiennent les politiques de santé actuelles de rembourser de façon libérale ces deux technologies. / Technological innovations have greatly contributed to the rising costs in healthcare, while budgets have remained limited. Economic evaluations of technologies should identify which technologies are cost-effective. However, several technologies used in modern medicine are either borderline cost-effective or even not cost-effective according to many studies. This thesis focuses on two technologies in cardiovascular medicine which are considered borderline cost-effective; drug-eluting stents and implantable cardioverter defibrillators. We conducted a contingent valuation of these technologies in hopes of determining if this alternative type of economic evaluation could give a novel point of view on the economic and societal value of these technologies. Results indicated that patients greatly valued benefits provided by these two technologies. Our result support our public healthcare system policies’ of liberal reimbursement of these two technologies.
505

Effet de la classe ou expériences scolaires? : étude sur l'élaboration et la variation des aspirations scolaires réalistes des étudiant(e)s canadien(ne)s au regard des études universitaires

Marcoux-Moisan, Maxime 09 1900 (has links)
Cette thèse a été réalisée, entre autres, grâce à une subvention reçue du Fonds de recherche du Québec – Société et culture et de son partenaire le ministère de l’Éducation, du Loisir et du Sport (MELS) Les analyses contenues dans cette thèse ont été réalisées au Centre interuniversitaire québécois de statistiques sociales (CIQSS), membre du Réseau canadien des centres de données de recherche (RCCDR). Les activités du CIQSS sont rendues possibles grâce à l’appui financier du CRSHC, des IRSC, de la FCI, de Statistique Canada, du FRQSC ainsi que de l’ensemble des universités québécoises qui participent à leur financement. Les idées exprimées dans ce texte sont celles des auteurs et non celles des partenaires financiers. / Ce travail explore le phénomène social que sont l’élaboration et la variation des aspirations scolaires réalistes chez les finissants du secondaire tout au long de leurs études, soit sur une période de huit années. L’idée est de faire ressortir les fac-teurs en jeu, en se référant aux deux concepts sociologiques d’importance dans le milieu de l’éducation que sont l’habitus de Pierre Bourdieu et la rationalité de Ray-mond Boudon. En somme, cette thèse explore dans quelle mesure les facteurs liés à au parcours de l’élève (base de référence pour un calcul rationnel) et à l’héritage so-cioculturel (habitus) peuvent intervenir sur l’élaboration des aspirations scolaires dites réalistes et la variation des aspirations. Les analyses ont été effectuées en deux temps. La première consiste en une régression logistique pour l’analyse transversale selon les données de l’enquête au-près des jeunes en transition (EJET). Analyse qui avait pour intention de faire ressor-tir les principaux facteurs qui interviennent lors de l’élaboration d’une aspiration sco-laire chez les élèves canadiens qui sont à la fin de leurs études secondaires. Par la suite, une seconde analyse a été faite, toujours avec les données d’EJET, afin de poser un regard longitudinal sur ce phénomène afin de prendre connaissance des facteurs qui interviennent tout au long de leur parcours; pour ce faire une régression d’estimation d’équation généralisée a été effectuée. Les résultats tendent à suggérer que l’élève exécute bel et bien un calcul ra-tionnel pour l’élaboration et la variation des aspirations scolaires réalistes, mais un calcul qui est, avant tout, influencé par l’habitus, surtout selon le niveau d’études des parents (capital culturel institutionnalisé). Par ailleurs, ce calcul rationnel serait da-vantage influencé par la moyenne générale déclarée lors des études au secondaire et lors des premières années à la suite des études secondaires. Ainsi peut-on dire que l’élaboration et la variation d’une aspiration scolaire réaliste se conçoivent sur la base d’un héritage culturel et d’un parcours scolaire constitués d’un ensemble d’expériences scolaires récentes, qui pourrait se conceptualiser sous « la rationalité en habitus ». / This thesis investigates the social phenomenon of the elaboration and adjustment of realistic educational aspirations for high school graduates during the ten-year period preceding graduation. Its aim is to determine which factors most affect realistic edu-cational aspirations in the light of two major sociological concepts: Pierre Bourdieu’s concept of habitus and Raymond Boudon’s concept of rationality. In short, this thesis explores the manner in which factors linked to educational experience (the baseline for rational calculating) and to sociocultural heritage (habitus) may affect the cons-truction of so-called realistic educational aspirations and their adjustment The analyses are done in two distinct parts. The first part consists of logistic regres-sion analysis using cross-sectional data drawn from the Youth in Transition Survey (YITS). The aim of this analysis is to identify the main factors that enter into consid-eration during the construction of educational aspirations for Canadian students ap-proaching high school graduation. The second part, also using YITS data, examines this phenomenon with a longitudinal perspective in order to identify which factors affect aspirations throughout Canadian students’ educational experience. This is done using generalized estimating equations (GEE) regression. The results show that young students, predictably, use rational calculation when con-structing and adjusting realistic educational aspirations, but also that such a calcula-tion is highly influenced by the habitus, especially by the parents’ education level (institutionalized cultural capital). Moreover, the students’ calculation proves to be significantly constrained, when assessing the risks of following different educational aspirations, by the self-reported overall high school average and additional grades in the first years of a postsecondary studies.
506

Estudo da viabilidade para introduzir na rotina testes de diagnóstico para infecção respiratória aguda / Feasibility study to introduce the routine diagnostic tests for acute respiratory infection

Furlan, Teresa Maria 18 April 2016 (has links)
Para avaliar os benefícios da comunicação rápida ao clínico do diagnóstico de vírus respiratórios, foi analisado a viabilidade econômica de 2 testes, com o tempo de entrega de resultado em 2 horas para teste rápido e 48 horas para Biologia Molecular. As amostras coletadas foram processadas utilizando técnicas convencionais e os testes disponíveis no mercado local. Foram escolhidos dois testes rápidos pelo método de imunocromatografia para quatro parâmetros analíticos: Influenza A, Influenza H1N1, Influenza B e Vírus Sincicial Respiratório (RSV) e em Biologia Molecular um teste de RT-PCR multiplex com 25 patógenos entre vírus e bactérias. O tipo de amostra utilizada foi swab e lavado de nasofaringe. A população escolhida para o estudo foi paciente adulto, em tratamento de câncer, que necessita de uma resposta rápida já que a maioria se encontra com comprometimento do sistema imune por doença ou por tratamento. O estudo foi transversal, realizado entre os anos de 2012 e 2013, para avaliar a viabilidade econômica da introdução de testes de diagnóstico da infecção respiratória aguda de etiologia viral a partir de amostras de nasofaringe em pacientes com câncer atendidos no Centro de Atendimento de Oncologia Intercorrência (CAIO ), do Instituto do Câncer do Estado de São Paulo (ICESP), hospital público que atende exclusivamente Sistema Único de Saúde (SUS) e Hospital A.C. Camargo, que atende tanto a pacientes do SUS como da rede privada. O estudo incluiu 152 pacientes em tratamento para qualquer tipo de câncer, predominantemente do sexo feminino (81 mulheres e 70 homens) com idades entre 18-86 anos. Para participar do estudo o paciente era consultado e o critério para escolha do paciente foi ser portador de câncer, com história de febre (ainda que referida) acompanhada de tosse ou dor de garganta, tosse e sintomas respiratórios agudos, atendidos por protocolo padronizado que inclui avaliação na admissão, seguimento e manejo antimicrobiano. Para a avaliação econômica os pacientes foram classificados de acordo com o estado geral de saúde, se apresentavam bom estado de estado de saúde poderiam receber alta e faziam uso da medicação em casa evitando 5 dias de internação se recebessem algum resultado para Influenza ou RSV, no entanto os pacientes que apresentavam outro vírus, resultado negativo ou o estado geral era ruim permaneciam internados por 7 dias em observação e cuidados com medicação adequada. Foram realizadas análises econômicas em dois âmbitos: o sistema de saúde publico e o privado considerando o fator diminuição de dias de internação. A analise de Custo-benefício foi eficiente no Sistema privado mas inadequada para o SUS assim como, qualquer outra medida monetária já que os valores de reembolso do SUS estão defasados do custo de qualquer internação. A análise de Custo-efetividade que olha para outros fatores além do monetário foi efetiva nos dois sistemas que enfrentam falta de leitos além da condição de saúde do paciente de evitar a ingestão desnecessária de antibióticos, evitar os gastos do acompanhante, perda de dias de trabalho e estudo. Não houve correspondência de resultados dos testes rápidos com o multiplex de Biologia Molecular / To evaluate the benefits of the rapid communication of the respiratory viruses\' diagnosis to the doctor, the economic feasibility of two tests was analyzed, with the result delivery time within 2-hours for the rapid test and 48 hours for Molecular Biology. The samples were processed using conventional techniques and the available tests in the local market. Two rapid tests were selected by the immunochromatography method for four analytical parameters: Influenza A, Influenza A H1N1, Influenza B, and Respiratory Syncytial Virus (RSV) and in Molecular Biology a multiplex RT-PCR assay with 25 pathogens between viruses and bacteria. The type of sample used was swab and nasopharyngeal wash. The population chosen for the study was of adult patients undergoing cancer treatment, which requires a rapid response since most have a compromised immune system due to the disease or treatment. The study, conducted between 2012 and 2013, was cross-sectional to evaluate the economic feasibility of introducing diagnostic tests for acute respiratory infection of viral etiology from nasopharyngeal samples of patients with cancer attended at the Oncology Intercurrence Care Center (CAIO), at the Cancer Institute of the São Paulo State (ICESP), at public hospital that attends exclusively the Unified Health System (SUS) and at AC Camargo hospital, which attends SUS patients as well as the private health system. The study included 152 patients undergoing treatment for any type of cancer, predominantly female (81 women and 70 men) between 18 and 86 years. To participate in the study, the patients were consulted and the criteria for choosing a patient was to be a cancer patient with a history of fever (even if referred) accompanied by cough or sore throat, coughing and acute respiratory symptoms, attended by standardized protocol that includes an evaluation at the admission, tracking and antimicrobial management. For the economic evaluation, patients were classified according to the general health condition. If they were in a good health condition, they could receive medical discharge and make use of the medication at home avoiding five days of hospitalization when receiving a result for influenza or RSV. However, the patients with other viruses, negative results or with bad general condition remained hospitalized for seven days under observation and care with proper medication. Economic analyzes were carried out in two areas: the public health system and private health system considering the factor decreased length of hospital stay. The cost-benefit analysis was efficient in the private system but inadequate for the NHS as well as any other monetary measure since the SUS reimbursement values are too low when compared to the cost of any other hospital. The cost-effectiveness analysis that looks at other factors besides money was effective in both systems that were facing lack of beds in addition to the health condition of the patient to avoid unnecessary intake of antibiotics, avoid the costs of the accompanying person, loss of working and study days. There were no results correspondences of the rapid tests with the Molecular Biology multiplex
507

Cost of type 2 diabetes mellitus in Hong Kong Chinese and economic analysis of a new antidiabetic agent.

January 2006 (has links)
Chan Siu-Wah. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2006. / Includes bibliographical references (leaves 173-200). / Abstracts in English and Chinese; appendix in Chinese. / Table of Contents --- p.i / Abstract --- p.v / 論文摘要 --- p.ix / Acknowledgments --- p.xii / Table of Figures --- p.xiii / Table of Tables --- p.xvii / Chapter Chapter 1. --- Introduction --- p.1 / Chapter Chapter 2. --- Literature Review --- p.3 / Chapter 2.1 --- Diabetes Mellitus (DM): Overview --- p.3 / Chapter 2.1.1 --- Diagnosis and Diagnostic Criteria --- p.4 / Chapter 2.1.2 --- Classifications of Diabetes Mellitus --- p.8 / Chapter 2.1.3 --- Management of Type 2 Diabetes Mellitus --- p.15 / Chapter 2.2 --- Diabetes Mellitus Complications: Overview --- p.25 / Chapter 2.2.1 --- Microvascular Complications --- p.26 / Chapter 2.2.2 --- Macrovascular Complications --- p.31 / Chapter 2.3 --- Type 2 Diabetes Mellitus - A Rising Global Burden --- p.32 / Chapter 2.3.1 --- Prevalence of Type 2 Diabetes Mellitus --- p.32 / Chapter 2.3.2 --- Prevalence of Type 2 Diabetes Mellitus in Hong Kong --- p.36 / Chapter 2.3.3 --- Mortality and Morbidity of Type 2 Diabetes Mellitus in Hong Kong --- p.40 / Chapter 2.4 --- cost of Type 2 Diabetes Mellitus - Under-explored Area in Hong Kong and Asia --- p.46 / Chapter 2.4.1 --- Cost of Type 2 Diabetes Mellitus in the USA --- p.48 / Chapter 2.4.2 --- Cost of Type 2 Diabetes Mellitus in Europe --- p.57 / Chapter 2.4.3 --- Cost of Type 2 Diabetes Mellitus in Asia-Pacific --- p.61 / Chapter 2.5 --- Hong Kong Healthcare System --- p.65 / Chapter 2.5.1 --- Hospital Authority in Hong Kong (Public Healthcare Sector) --- p.67 / Chapter 2.5.2 --- Hong Kong Healthcare Financing System --- p.73 / Chapter 2.6 --- New Emerging Drug Treatment for Type 2 DM in Hong Kong Chinese - Rosiglitazone --- p.77 / Chapter 2.6.1 --- Clinical Efficacy and Tolerability of Rosiglitazone --- p.77 / Chapter 2.6.2 --- Cost-effectiveness of Rosiglitazone --- p.78 / Chapter Chapter 3. --- Hypothesis and Objectives --- p.81 / Chapter 3.1 --- Cost of Type 2 Diabetes Mellitus in Hong Kong Chinese --- p.81 / Chapter 3.1.1 --- Hypothesis --- p.81 / Chapter 3.1.2 --- Objectives --- p.81 / Chapter 3.2 --- Cost-effectiveness Analysis of Metformin + Rosiglitazone vs. Metformin + Glibenclamide for Type 2 DM Patient Whose Diabetes is not Adequately Controlled by Metformin Alone from a Payer's Perspective --- p.82 / Chapter 3.2.1 --- Hypothesis --- p.82 / Chapter 3.2.2 --- Objectives --- p.83 / Chapter Chapter 4. --- Cost of Type 2 Diabetes Mellitus in Hong Kong Chinese --- p.84 / Chapter 4.1 --- Subjects and Methods --- p.84 / Chapter 4.1.1 --- Subjects --- p.84 / Chapter 4.1.2 --- Methods --- p.85 / Chapter 4.1.3 --- Validity and Reliability of the Chinese Questionnaire --- p.96 / Chapter 4.2 --- Results --- p.96 / Chapter 4.2.1 --- Subjects' Characteristics --- p.96 / Chapter 4.2.3 --- Comorbidity --- p.102 / Chapter 4.2.4 --- Complications --- p.102 / Chapter 4.2.5 --- Costs of Type 2 DM --- p.104 / Chapter 4.3 --- Discussions --- p.123 / Chapter Chapter 5 --- Cost-effectiveness Analysis of Metformin + Rosiglitazone vs. Metformin + Glibenclamide for Type 2 DM Patient Whose Diabetes is not Adequately Controlled by Metformin Alone from a Payer's Perspective --- p.134 / Chapter 5.1 --- Methods --- p.134 / Chapter 5.1.1 --- Model Overview --- p.134 / Chapter 5.1.2 --- "Success, Failure and Discontinuation Rates" --- p.138 / Chapter 5.1.3 --- Resources Use and Costs --- p.142 / Chapter 5.1.4 --- Health-Related Quality of Life (HRQOL) --- p.148 / Chapter 5.1.5 --- Base Case Analysis --- p.149 / Chapter 5.1.6 --- Sensitivity Analyses --- p.149 / Chapter 5.2 --- Results --- p.150 / Chapter 5.2.1 --- Base Case Model - CE Analysis: cost per controlled Type 2 DM patient --- p.150 / Chapter 5.2.2 --- Sensitivity Analysis- CE Analysis: cost per controlled Type 2 DM patient --- p.151 / Chapter 5.2.3 --- Base Case Model - CE Analysis: cost per EQ5D utility score --- p.154 / Chapter 5.2.4 --- Sensitivity Analysis- CE Analysis: cost per EQ5D utility score --- p.155 / Chapter 5.3 --- Discussions --- p.158 / Chapter Chapter 6. --- Conclusions --- p.163 / Appendix --- p.165 / References
508

Estudo da viabilidade para introduzir na rotina testes de diagnóstico para infecção respiratória aguda / Feasibility study to introduce the routine diagnostic tests for acute respiratory infection

Teresa Maria Furlan 18 April 2016 (has links)
Para avaliar os benefícios da comunicação rápida ao clínico do diagnóstico de vírus respiratórios, foi analisado a viabilidade econômica de 2 testes, com o tempo de entrega de resultado em 2 horas para teste rápido e 48 horas para Biologia Molecular. As amostras coletadas foram processadas utilizando técnicas convencionais e os testes disponíveis no mercado local. Foram escolhidos dois testes rápidos pelo método de imunocromatografia para quatro parâmetros analíticos: Influenza A, Influenza H1N1, Influenza B e Vírus Sincicial Respiratório (RSV) e em Biologia Molecular um teste de RT-PCR multiplex com 25 patógenos entre vírus e bactérias. O tipo de amostra utilizada foi swab e lavado de nasofaringe. A população escolhida para o estudo foi paciente adulto, em tratamento de câncer, que necessita de uma resposta rápida já que a maioria se encontra com comprometimento do sistema imune por doença ou por tratamento. O estudo foi transversal, realizado entre os anos de 2012 e 2013, para avaliar a viabilidade econômica da introdução de testes de diagnóstico da infecção respiratória aguda de etiologia viral a partir de amostras de nasofaringe em pacientes com câncer atendidos no Centro de Atendimento de Oncologia Intercorrência (CAIO ), do Instituto do Câncer do Estado de São Paulo (ICESP), hospital público que atende exclusivamente Sistema Único de Saúde (SUS) e Hospital A.C. Camargo, que atende tanto a pacientes do SUS como da rede privada. O estudo incluiu 152 pacientes em tratamento para qualquer tipo de câncer, predominantemente do sexo feminino (81 mulheres e 70 homens) com idades entre 18-86 anos. Para participar do estudo o paciente era consultado e o critério para escolha do paciente foi ser portador de câncer, com história de febre (ainda que referida) acompanhada de tosse ou dor de garganta, tosse e sintomas respiratórios agudos, atendidos por protocolo padronizado que inclui avaliação na admissão, seguimento e manejo antimicrobiano. Para a avaliação econômica os pacientes foram classificados de acordo com o estado geral de saúde, se apresentavam bom estado de estado de saúde poderiam receber alta e faziam uso da medicação em casa evitando 5 dias de internação se recebessem algum resultado para Influenza ou RSV, no entanto os pacientes que apresentavam outro vírus, resultado negativo ou o estado geral era ruim permaneciam internados por 7 dias em observação e cuidados com medicação adequada. Foram realizadas análises econômicas em dois âmbitos: o sistema de saúde publico e o privado considerando o fator diminuição de dias de internação. A analise de Custo-benefício foi eficiente no Sistema privado mas inadequada para o SUS assim como, qualquer outra medida monetária já que os valores de reembolso do SUS estão defasados do custo de qualquer internação. A análise de Custo-efetividade que olha para outros fatores além do monetário foi efetiva nos dois sistemas que enfrentam falta de leitos além da condição de saúde do paciente de evitar a ingestão desnecessária de antibióticos, evitar os gastos do acompanhante, perda de dias de trabalho e estudo. Não houve correspondência de resultados dos testes rápidos com o multiplex de Biologia Molecular / To evaluate the benefits of the rapid communication of the respiratory viruses\' diagnosis to the doctor, the economic feasibility of two tests was analyzed, with the result delivery time within 2-hours for the rapid test and 48 hours for Molecular Biology. The samples were processed using conventional techniques and the available tests in the local market. Two rapid tests were selected by the immunochromatography method for four analytical parameters: Influenza A, Influenza A H1N1, Influenza B, and Respiratory Syncytial Virus (RSV) and in Molecular Biology a multiplex RT-PCR assay with 25 pathogens between viruses and bacteria. The type of sample used was swab and nasopharyngeal wash. The population chosen for the study was of adult patients undergoing cancer treatment, which requires a rapid response since most have a compromised immune system due to the disease or treatment. The study, conducted between 2012 and 2013, was cross-sectional to evaluate the economic feasibility of introducing diagnostic tests for acute respiratory infection of viral etiology from nasopharyngeal samples of patients with cancer attended at the Oncology Intercurrence Care Center (CAIO), at the Cancer Institute of the São Paulo State (ICESP), at public hospital that attends exclusively the Unified Health System (SUS) and at AC Camargo hospital, which attends SUS patients as well as the private health system. The study included 152 patients undergoing treatment for any type of cancer, predominantly female (81 women and 70 men) between 18 and 86 years. To participate in the study, the patients were consulted and the criteria for choosing a patient was to be a cancer patient with a history of fever (even if referred) accompanied by cough or sore throat, coughing and acute respiratory symptoms, attended by standardized protocol that includes an evaluation at the admission, tracking and antimicrobial management. For the economic evaluation, patients were classified according to the general health condition. If they were in a good health condition, they could receive medical discharge and make use of the medication at home avoiding five days of hospitalization when receiving a result for influenza or RSV. However, the patients with other viruses, negative results or with bad general condition remained hospitalized for seven days under observation and care with proper medication. Economic analyzes were carried out in two areas: the public health system and private health system considering the factor decreased length of hospital stay. The cost-benefit analysis was efficient in the private system but inadequate for the NHS as well as any other monetary measure since the SUS reimbursement values are too low when compared to the cost of any other hospital. The cost-effectiveness analysis that looks at other factors besides money was effective in both systems that were facing lack of beds in addition to the health condition of the patient to avoid unnecessary intake of antibiotics, avoid the costs of the accompanying person, loss of working and study days. There were no results correspondences of the rapid tests with the Molecular Biology multiplex
509

An economic analysis of the domestication of the tuna fishery - the case of Kiribati

Yeeting, Agnes David January 2009 (has links)
The Western and Central Pacific Ocean (WCPO) is home to the largest tuna fishery stock in the world. However, Pacific Island members of the Western and Central Pacific Tuna Commission (WCPTC) argue that their share of the economic rent from the tuna catches taken out of the Pacific region is very small, being on average only about 6% of the total net benefit, when compared to the share earned by Distant Water Fishing Nations (DWFNs). Kiribati is one of the Pacific Island Countries (PICs), which relies heavily on its fishery for its economic development and sustainability. Kiribati earns 40% - 50 % of its government revenue from fisheries access fees paid by DWFNs for tuna caught in the the Kiribati EEZ. The Government of Kiribati (GoK) believes that Kiribati could get greater benefit if they develop their own domestic tuna fishery. This study uses Cost-Benefit Analysis (CBA) and SWOT Analysis to investigate whether domestication of the tuna fishery is the right move for Kiribati or not. The CBA reported in this thesis adapted a model developed by Campbell (2004) to investigate and evaluate fisheries policy in Papua New Guinea (PNG). However the model in this thesis is reflective of the situation and case of Kiribati. In analyzing the different options identified in this study, the CBA indicated negative (-) NPV(s) for the medium-sized vessel option and positive (+) NPV(s) for the large-sized vessel option. The SWOT analysis however, complemented the CBA by further investigating the tuna domestication options in the economic, social and business and business environment of Kiribati. The SWOT analysis indicated that the existing situation and business conditions in Kiribati appears to favor the small to medium sized vessel options which are less risky than the large purse seine vessel option.
510

以成本-利益觀點探討極大化程度對消費者產品資訊搜尋行為之影響 / The Effects of Maximization Tendency on Consumers’ Product Information Seeking Behavior: From the Prospective of Cost-Benefit

李文玄, Lee, Wen Hsuan Unknown Date (has links)
本論文之研究目的在以成本與利益觀點,驗證產品資訊搜尋過程,消費者於對搜尋時間成本與產品資訊信心程度之主觀估計,在極大化程度對消費者產品資訊搜尋行為影響所扮演的中介變數角色,藉此瞭解產品資訊搜尋階段,極大化程度對消費者資訊搜尋行為與態度之影響機制。 極大化程度為一種個人追求最佳選擇程度之人格特質傾向。過去極大化程度在消費者行為領域之相關研究,多聚焦於探討不同極大化程度消費者之選項數量偏好、時間成本投入意願與決策後情感反應之差異,甚少有消費者資訊搜尋過程相關議題之討論。本研究認為,產品資訊搜尋實為消費者整體選擇與決策歷程最重要之階段,經常影響消費決策之最終品質,因此若要真正瞭解極大化程度對消費者選擇行為與態度差異之影響,除從極大化人格特質基本定義做為影響之解釋外,亦須藉由探討極大化程度在產品資訊搜尋過程,對消費者資訊成本與利益認知之影響中,連結出整段消費者選擇行為歷程之影響機制關係。 本論文以Ratchford (1982) 所提之「資訊搜尋之成本-利益模式 (The Cost-Benefit Model for Information Seeking)」為理論基礎,並將研究分為兩部份,研究一為探討不同極大化程度消費者在產品挑選機制與產品屬性要求標準上的差異,透過受測者對四項產品之屬性重要度評估、對特定屬性規格之期望標準,得知不同極大化程度受測者在產品屬性重視的程度、視為重要的屬性數量,以及產品屬性要求標準上之差異。研究二則採取2 (資訊延遲時間高、低)×2 (產品屬性離散程度高、低) 組間設計實驗,透過本研究設計之虛擬產品購物網站平台,讓受測者執行產品資訊搜尋任務,從中衡量受測者對產品資訊搜尋時間成本與資訊信心之主觀估計,驗證單位搜尋時間估計與單位資訊效用估計在極大化程度對受測者產品資訊搜尋數量、搜尋過程滿意度與產品知覺價值中,扮演之中介變數角色,以瞭解箇中之內在心理機制。 研究結果顯示,極大化程度與產品屬性重視程度及屬性要求標準呈現顯著正向關係,極大化受測者對產品屬性的重視程度與對產品屬性的要求標準皆較滿足化者高。足見不同極大化程度消費者對選擇之追求目標差異,會具體展現於產品遴選機制與屬性要求標準上。而經過中介變數關係檢定後也發現,極大化程度越高之受測者所估計之搜尋時間與對資訊在決策幫助上的信心越低,因而正向影響了搜尋的產品數量,搜尋時間成本與資訊效用估計亦分別成為受測者對搜尋過程滿意度以及對產品知覺價值之中介變數。 本論文之研究成果除驗證極大化選擇目標與產品遴選機制及屬性要求標準之關聯性外,亦進一步得知極大化程度影響消費者產品資訊搜尋行為與態度之內在心理機制,成功將系統性之消費者資訊搜尋經濟模式與極大化概念結合,為極大化程度研究領域帶來更深入且具理論基礎之發現。研究成果亦可作為通路或產品廠商思索產品陳列與資訊呈現方式時之參考依據,以降低顧客之主觀成本花費、提升產品資訊帶給顧客決策上的利益,提高顧客對個人整體消費過程之滿意度與所選產品之知覺價值。 / The purpose of this research is to demonstrate whether consumers’ subjective estimations of search time and product information confidence are the mediators mediating the effects of maximization tendency on consumers’ product information seeking behavior and attitude. From the perspective of information cost-benefit, the psychological mechanism will be found from this effect of personality on consumer behavior in this research. Maximization tendency was conceptualized in recent ten years to describe individual’s personality that strives for pursuing the best choice. After this concept was developed, most of the researches in this domain focused on discussing in the relationships between maximization orientation and consumers’ choice preferences such as the differences in the amount of alternatives, the aspiration to invest search time, and affective response after making decision. However seldom of them paid their attentions to the stage of product information search to probe the mechanism for the effect of maximization tendency on consumers’ searching behaviors about product information. Since the information seeking is the most important process to influence consumers’ decisions, the current study aims to explore the effects of maximization tendency on the individuals’ subjective estimations of time cost and benefit of product information. Hereby, the whole picture of the causal relationship in consumers’ information searching process would be drawn in this study. Referring to the rationales of Ratchford’s cost-benefit model, this research conducts two studies: the first part is to assess the differences in the criteria and attribute standard of consumers’ product selection with differential maximization tendencies. The second part is to conduct a 2 (the delay length of information appearance: low and high)×2 (the the dispersion of information attributes: low and high) between subject design experiments to demonstrate the mediating effect of two variables: consumers’ subjective estimation of time cost and information confidence during searching for information in the relations between maximization tendency and consumers’ information seeking behavior. The result shows the relationship between participants’ maximization orientation and their selection criteria as well as attribute demand standard exists. In general, maximizers have more complex choice criteria and higher picking standards than satisficers do when they choose the same products. The psychological mechanism is confirmed to help us understand how maximization tendency affect seeking behaviors and attitudes of product information from consumer’s product information seeking behavior and attitude. Manufacturers and store owners are suggested to apply these findings in the arrangement of alternatives and the display of product attribute information in order to reduce customers’ subjective estimation of time cost and improve their perception on information utility to, eventually, increase their satisfaction with the whole consumption experiences.

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