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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.
41

Urban Vulnerability: Bridging Systems and People-Centred Approaches in Dawei, Tanintharyi Region, Myanmar

Martin, Taylor January 2016 (has links)
This research discusses urban vulnerability to environmental change in Dawei, Myanmar through the analysis of the exposure and sensitivity of urban systems. The scope of this research attempts to encompass the complexity of multi-scalar relationships between the exposure and sensitivity of urban systems and wider supporting ecological systems to climatic and non-climatic shocks and stresses. Moreover, this research aims to bridge systems and people-centred approaches by considering the existing sensitivity of vulnerable populations living in Dawei through the use of two case studies. Specifically, an urban livelihoods approach was used to consider the entitlements, priorities, and capacities of households to cope with shocks and stress given existing challenges. The analysis of findings have been presented according to nested scales, beginning with the macro-level in the consideration of the exposure of urban socio-ecological systems; the meso-level through the analysis of the differential exposure and sensitivity of two communities living in Dawei in light of access to urban infrastructure and services; and lastly, the micro-level through the analysis of household sensitivity through the application of a livelihoods approach.
42

Household welfare and poverty in rural China

You, Jing January 2011 (has links)
The thesis examines three issues related to Chinese rural households’ well-being and poverty status over the period of 1989-2006. Each of them corresponds to a substantive chapter (Chapter 3-5). Chapter 1 introduces the stages of poverty reduction in rural China following the reforms that started in 1978 and discusses some problems related to further poverty reduction and increases in welfare. Chapter 2 provides a general description of the data set used in the substantive chapters. It includes a discussion of the construction of the panel and the justification of the construction and use of the key economic variables. It also uses this panel to provide some preliminary explorations on households’ poverty status and inequality. Chapter 3 examines the welfare loss brought about by the increasing uncertainty attached to households’ consumption flows. Along with significant economic growth over more than three decades, rural households’ livelihood has become more uncertain in terms of greater volatility and inequality in their consumption. Our estimate is that households’ welfare would have risen up by approximately one third if there were no such uncertainties. Farmers and the chronically poor appear to suffer most among all sub-groups from the welfare loss associated with this uncertainty. Chapter 4 extends the existing literature on poverty in rural China from a perspective of households’ agricultural asset holdings. The analysis finds multiple equilibria in asset dynamics. In the presence of limited insurance, households’ exposure to various shocks and risk forces them to engage in conservative livelihood strategies: they may prefer low-risk low-return production to more profitable but riskier investment in asset accumulation. As a result, some households may be trapped into lower incomes in the long-term. Based on the findings in Chapter 4, Chapter 5 empirically identifies the dynamic asset threshold. It categorises households into either the downward or upward mobility group in the long-term. Then, this chapter measures to what extent falling below this asset threshold may affect households’ probabilities of being poor. Both static and dynamic estimates suggest that insufficient asset holdings substantially increase the chances of falling into poverty. Chapter 6 summarises policy implications indicated by the empirical analyses in three substantive chapters. Overall, education, health insurance and off-farm employment appear to be the key factors if there is to be a further improvement in Chinese rural households’ welfare and reduction in poverty.
43

Modeling Place Vulnerability of HIV/AIDS in Texas

Harold, Adam F. 08 1900 (has links)
This study provides a measurable model of the concept of place vulnerability for HIV/AIDS that incorporates both community and structural level effects using data provided at the ZIP code level from the Texas Department of State Health Services. Sociological literature on the effects of place on health has been growing but falls short of providing an operational definition of the effects of place on health. This dissertation looks to the literature in medical/health geography to supplement sociology’s understanding of the effects of place on health, to the end of providing a measurable model. Prior research that has recognized the complexity of the effects of place still have forced data into one scale and emphasized individual-level outcomes. A multilevel model allows for keeping the associated spatial unit data, without aggregating or parsing it out for convenience of model fit. The place vulnerability model proposed examines how exposure, capacity and potentiality variables all influence an area’s HIV/AIDS count. To capture the effects of place vulnerability at multiple levels, this dissertation research uses a multilevel zero-inflated poisson (MLZIP) model to examine how factors measured at the ZIP code and county both affect HIV/AIDS counts per ZIP code as an outcome. Furthermore, empirical Bayes estimates are mapped to display how well the model fits across the state of Texas. Limitations of this research include the need to incorporate time, more specific predictors, and individual level factors. The methodology developed permits a more thorough understanding of place effects on the spatial variation of HIV/AIDS.
44

Vulnerability analysis of electric power delivery networks

Holmgren, Åke January 2004 (has links)
Disturbances in the services provided by the infrastructuresystems—e.g. electric power supplies and communications—can have serious implications for everyday life,economic prosperity and national security. The disturbances canbe initiated by natural disasters, adverse weather, technicalfailures, human errors, sabotage, terrorism or acts of war. Theaim of this thesis is to study methods for proactivevulnerability analysis of electric power delivery networks(i.e. to analyze their sensitivity to threats and hazards), andto formalize vulnerability as a theoretical concept. The thesis consists of three papers. In the first paper, wediscuss concepts and perspectives for developing a methodologyfor vulnerability studies with the help of the followingthemes: The properties of the infrastructure systems, threatsand hazards, vulnerability and consequence analysis, andmeasures for creating robust and resilient systems. In the second paper we discuss how to assess vulnerabilityof power delivery systems with the help of standard powersystem performance indices. In two case studies, Swedish powerdelivery disturbance data is analyzed with statistical methods.We demonstrate that the disturbance size of large disturbancesfollows a power law distribution, and that the time betweendisturbances is exponentially distributed. In third paper, we model electrical power networks asgraphs, and conduct empirical studies of two power transmissiongrids. We calculate values of topological characteristics ofthe networks and compare their error and attack tolerance, i.e.their performance when vertices are disabled, with twofrequently used model networks. Further, we perform a graphinfluenced vulnerability analysis of a fictitious powernetwork, and evaluate di.erent strategies to decrease thevulnerability of the system.
45

Vulnerability Assessment and Risk Mitigation: The Case of Vulcano Island, Italy

Galderisi, Adriana, Bonadonna, Costanza, Delmonaco, Giuseppe, Ferrara, Floriana Federica, Menoni, Scira, Ceudech, Andrea, Biass, Sebastien, Frischknecht, Corine, Manzella, Irene, Minucci, Guido, Gregg, Chris 01 January 2013 (has links)
This paper reports on a comprehensive vulnerability analysis based on a research work developed within the EC ENSURE Project (7FP) dealing with the assessment of different volcanic phenomena and induced mass-movements on Vulcano Island (S Italy) as a key tool for proactive efforts for multi-risk mitigation. The work is mainly focused on tephra sedimentation and lahar hazards and related physical, systemic and mitigation capacities.
46

Vulnerability Assessment and Risk Mitigation: The Case of Vulcano Island, Italy

Galderisi, Adriana, Bonadonna, Costanza, Delmonaco, Giuseppe, Ferrara, Floriana Federica, Menoni, Scira, Ceudech, Andrea, Biass, Sebastien, Frischknecht, Corine, Manzella, Irene, Minucci, Guido, Gregg, Chris 01 January 2013 (has links)
This paper reports on a comprehensive vulnerability analysis based on a research work developed within the EC ENSURE Project (7FP) dealing with the assessment of different volcanic phenomena and induced mass-movements on Vulcano Island (S Italy) as a key tool for proactive efforts for multi-risk mitigation. The work is mainly focused on tephra sedimentation and lahar hazards and related physical, systemic and mitigation capacities.
47

The Use of Radionuclides to Identify Vulnerable Fractured and Karst Bedrock Aquifers in Eastern Ontario

Harrison, Alex 24 April 2023 (has links)
Domestic water wells in Eastern Ontario were identified in potentially vulnerable fractured and karst bedrock aquifers using geologic and geochemical data. A novel methodology is presented that evaluates ¹³⁷Cs and ²¹⁰Pbₑₓ as local indicators of groundwater vulnerability. The method is designed to determine the vulnerability of a specific well. Suspended sediment samples and well-bottom sediment samples were collected from both potentially vulnerable and non-vulnerable wells. Surface soil samples were also collected from West Rural Ottawa and the Township of Alfred & Plantagenet in Ontario, Canada. Gamma spectroscopy was used to analyze the samples and quantify the presence of the radionuclides in cps and cps/g. The spectral data indicate no significant difference in the activities of ²¹⁰Pbₑₓ among samples, but a significant difference in the activities of ¹³⁷Cs was observed between surface soil samples and well-bottom sediment samples collected from vulnerable wells. The data suggest that ²¹⁰Pbₑₓ does not act as a good indicator of vulnerable aquifers because of its geogenic origin. The anthropogenic origin of ¹³⁷Cs precludes this issue, and while ¹³⁷Cs was detected in measurable quantities at the surface, its use as an indicator of vulnerable aquifers is limited by hydrologic and geologic controls that prevent infiltration in vulnerable terrains.
48

VULNERABILITY TO TROPICAL CYCLONE RELATED MORTALITIES ON HISPANIOLA

Kastelein, Bryce 21 November 2014 (has links)
No description available.
49

Unethical Manipulation of Participants in Clinical Trials

Woodward, Leanne January 2019 (has links)
Discussion of manipulation as a form of undermining the consent of participants in clinical reserach, and specifically pregnant women who are HIV positive.. / I will argue that the relationship between the clinician scientist and the participant in the ACTG 076 trials involved unethically manipulative elements. My question of unethical manipulation examines the relationship between the clinician scientist and the participant. My first chapter establishes manipulation as follows, ‘A manipulates B if and only if A motivates B to make a decision or perform an action that bypasses B’s rational capacities by means of deception, emotional pressure, or exploitation of B’s ego depleted state.’ I argue that manipulation is prima facie unethical because it violates one’s autonomy. In the second chapter I examine the concerns of illness, gender roles, pregnancy, and HIV status, which can cause ego depletion and increase the participants’ vulnerability to manipulation. After analysis, I conclude that, although none of these elements can be eliminated as concerns for the clinician scientist, if they are not adequately accounted for, the clinician scientist has unethically manipulated the participant to enter and remain a part of the trial. I suggest that an adequate account would involve special consideration of how these vulnerabilities interact within the specific context of the trial. My third and final chapter will relate my conclusions to the current and upcoming research that is actively incorporating pregnant women as participants. / Thesis / Master of Arts (MA) / This thesis will examine the need to include the term “manipulation” into current ethical guidelines for Western bioethics because manipulation is a concept that is separate from concepts such as “coercion,” “force,” “exploitation,” or “undue influence” which appear in current Western bioethical guidelines. Manipulation is an unethical influence of another’s decision-making that undermines their autonomy, whereas autonomy is a key feature of Western bioethics and must be fostered rather than undermined or hindered. This thesis will discuss a clinical case in which pregnant women with HIV were enrolled in a clinical trial and I will discuss how illness, gender, pregnancy, and HIV status can cause one’s ego to be depleted so that they are more vulnerable to manipulation than other clinical participants. Finally, I will recommend that states, ethics boards, and researchers are the primary actors responsible for ensuring that participants are not manipulated in clinical research settings.
50

Om sociala sårbarheter i relation till naturkatastrofer

Persson, Erik January 2009 (has links)
<p>Syftet med denna uppsats är att ge en forskningsöversikt kring begreppet social sårbarhet i relation till naturkatastrofer i allmänhet. Sårbarhet i relation till naturkatastrofer har kartlagts och studerats vetenskapligt under en kortare period, medan social sårbarhet, som är en undergrupp till sårbarhetsfältet, har studerats förhållandevis lite. Genom att ta reda på vilka människor/grupper av människor som är mest utsatta för naturkatastrofer finns det en möjlighet för beslutsfattare att fatta välgrundade beslut om var förebyggande insatser bör göras, såväl som akuta insatser i händelse av en naturkatastrof. Tanken är att denna uppsats skall ligga till grund för en lokal studie 2009-2010 av social sårbarhet i en utvald kommun vid Vänerns strand. Vänern är som känt hotad av ökad översvämningsrisk i samband med klimatförändringar och vikten av att undersöka social sårbarhet där är stor. Det huvudsakliga resultatet är att social sårbarhet i relation till naturkatastrofer är bristfälligt kartlagt i vetenskaplig litteratur. Den metodik som har utarbetats för att mäta och hantera social sårbarhet i olika samhällen är fortfarande på ett experimentellt stadium. Att mäta och analysera social sårbarhet i Sverige är möjligt, om än med tydliga begränsningar, men det är av största betydelse att hänsyn tas till de unika förhållanden som råder på den plats som skall studeras. De variabler som används i utländska studier för att mäta social sårbarhet är förmodligen annorlunda från vilka variabler som är lämpliga att använda i Sverige. De studier som undersökts i rapporten använder sig av variabler som är lätta att kvantifiera. Kvalitativa variabler skulle sannolikt vara mer intressanta att mäta i en studie om social sårbarhet i Sverige.</p>

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