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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.
181

Non-target effects of genetically modified trees /

Blomberg, Patrik, January 2007 (has links)
Diss. (sammanfattning) Umeå : Umeå universitet, 2007. / Härtill 4 uppsatser.
182

Causal loops in long-term supply relationships : theory and evidence from the United States, Japan and Europe /

Jong, G. de. January 1999 (has links)
Thesis (doctoral)--Rijksuniversiteit Groningen, 1998. / Includes bibliographical references (p. [151]-164. Includes index).
183

Supply-side economics in the Republic of Korea /

Son, Hyung Chan. January 1990 (has links) (PDF)
Thesis (M.S. in Management)--Naval Postgraduate School, June 1990. / Thesis Advisor(s): Henderson, David R. Second Reader: Matthews, Danny G. "June 1990." Description based on title page as viewed on October 16, 2009. DTIC Identifier(s): Taxes, South Korea, Economic Analysis, Theses. Author(s) subject terms: Supply-side Economics, Tax Rates, Tax Revenue. Includes bibliographical references (p. 61). Also available online.
184

Climate change and peak demand for electricity : evaluating policies for reducing peak demand under different climate change scenarios /

Anthony, Abigail Walker. January 2009 (has links)
Thesis (Ph.D.) -- University of Rhode Island, 2009. / Typescript. Includes bibliographical references (leaves 215-236).
185

Integrated and synchronised approach to DSM initiatives /

Begemann, Morne. January 2009 (has links)
Thesis (M.Sc.Eng.)-University of KwaZulu-Natal, Durban, 2009. / Full text also available online. Scroll down for electronic link.
186

Effects Of Saltcedar On Population Structure and Habitat Utilization of the Common Side-Blotched Lizard

January 2011 (has links)
abstract: Non-native saltcedar (Tamarix spp.) has invaded many riparian communities and is the third most abundant tree in Southwestern riparian areas. I evaluated lizard populations and microhabitat selection during 2009 and 2010 along the Virgin River in Nevada and Arizona to determine the impact of saltcedar. Along the riparian corridor, I observed common side-blotched lizards (Uta stansburiana) within two vegetation types: monotypic non-native saltcedar stands or mixed stands of cottonwood (Populus fremontii), willow (Salix spp.), mesquite (Prosopis spp.) and saltcedar. I predicted that population parameters such as body condition, adult to hatchling ratio, abundance, and persistence would vary among vegetation types. Also, I predicted the presence of saltcedar influences how lizards utilize available habitat. Lizard population parameters were obtained from a mark-recapture study in which I captured 233 individual lizards. I examined habitat selection and habitat availability using visual encounter surveys (VES) for lizards and recorded 11 microhabitat variables where 16 lizards were found. I found no significant difference in population parameters between mixed and non-native saltcedar communities. However, population parameters were negatively correlated with canopy cover. I found that lizards selected habitat with low understory and canopy cover regardless of vegetation type. My results indicate that lizards utilize similar structural characteristics in both mixed and non-native vegetation. Understanding impacts of saltcedar on native fauna is important for managers who are tasked with control and management of this non-native species. / Dissertation/Thesis / M.S. Applied Biological Sciences 2011
187

Sadvertising : Communicating the problems of the fashion industry

Tallvod, Lynn January 2018 (has links)
This work serves as a way of communicating the dark side of fashion to provoke change. Consumers is placed in the loop that consists of consumerism, fast fashion and advertising, and this work will try to expose that loop. This work aims to critique how fashion is consumed and sold through printing images from the dark side of fashion in combination with texts from advertisements to open up a conversation. The method to do this is by digital printing and transfer printing images from the dark side of the fashion industry on sustainable materials, combining the images with advertising texts. Through this the viewer is invited into conversation about the problems with subtle provocation by making the viewer emotionally involved.
188

Fatores de risco associados às reações adversas a medicamentos antituberculose : uma revisão sistemática

Resende, Laíse Soares Oliveira 28 August 2013 (has links)
Submitted by Morgana Andrade (morgana.andrade@ufes.br) on 2016-04-12T21:14:15Z No. of bitstreams: 2 license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) tese_6767_2011_Laise.pdf: 1611120 bytes, checksum: dc3f71b886d62aa108232580c6306fb6 (MD5) / Approved for entry into archive by Patricia Barros (patricia.barros@ufes.br) on 2016-04-13T15:49:21Z (GMT) No. of bitstreams: 2 license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) tese_6767_2011_Laise.pdf: 1611120 bytes, checksum: dc3f71b886d62aa108232580c6306fb6 (MD5) / Made available in DSpace on 2016-04-13T15:49:21Z (GMT). No. of bitstreams: 2 license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) tese_6767_2011_Laise.pdf: 1611120 bytes, checksum: dc3f71b886d62aa108232580c6306fb6 (MD5) / Introdução: Os problemas relacionados à interrupção e ao abandono do tratamento da tuberculose culminam em aumento da morbimortalidade. A ocorrência de reações adversas a medicamentos (RAM) é apontada como um dos principais fatores relacionados. Objetivo: Identificar evidência científica disponível sobre os fatores de risco associados às reações adversas decorrentes do uso de medicamentos antituberculose. Métodos: Trata-se de uma revisão sistemática em que se buscou estudos sobre fatores de risco associados às reações adversas aos medicamentos antituberculose nas bases Medical Literature Analysis and Retrieval System Online (MEDLINE), no período entre 1965 e 2013 e Literatura Científica e Técnica da América Latina e Caribe (LILACS), no período entre 1982 e 2013. Localizou-se 1389 artigos que passaram por uma triagem a partir da leitura dos títulos e resumos. A partir dessa análise, selecionou-se 85 estudos para serem lidos na íntegra. Ao final, 16 estudos foram incluídos na análise a partir dos critérios de elegibilidade adotados em cada etapa, que tiveram seus dados extraídos para os cálculos de Qui-quadrado, Mantel-haenszel, Odds ratio simples (OR) e combinada (ORc). Resultados: Os fatores de risco significantes para o desenvolvimento de RAM foram: idade (maior que 60 anos), esquemas de tratamento, alcoolismo, anemia, coinfecção pelo vírus da imunodeficiência humana ou vírus da hepatite, polimorfismo da N-acetiltransferase 2 (acetilador lento), além da deficiência de sódio, ferro e albumina. Enquanto as meta-análises evidenciaram que os fatores de proteção das RAM hepáticas são: sexo masculino (ORc=0,38; IC95%=0,20-0,72), idade >35 anos (ORc=0,38; IC95%=0,20-0,72), fenótipo acetilador rápido/intermediário da N-acetiltransferase 2 (ORc=0,41; IC95%=0,18-0,90). Conclusões: Há evidências para subsidiar o manejo de RAM antituberculose nos serviços de saúde pública. / Setting: The problems related to the interruption and the dropout of tuberculosis treatments lead to increased morbi-mortality. Drugs adverse effects are some of the main related reasons. Objective: To identify scientific evidence available about risk factors associated to adverse effects due to antituberculosis drugs usage. Design: A systematic review of studies about risk factors related to adverse effects of antituberculosis drugs selected in MEDLINE database from 1965 to 2013 and in LILACS database from 1982 to 2013. After screening papers by reading all titles and abstracts there were 1.389 approved papers. Based on this analysis, 85 papers were selected to be fully read. At the end, 16 papers were selected to be analyzed due to the eligibility criteria on each step, had their data extracted for calculation of Chi-square, Mantel-Haenszel, Odds ratio (OR) and combined Odds ratio (ORc). Results: Significant risk factors to the development of drugs adverse effects were: age over 60 years, treatment regimen, alcoholism, anemia, coinfection by human immunodeficiency or hepatitis viruses, phenotype slow acetylators of N-acetyltransferase 2 and the deficiency of sodium, iron and albumin. While, meta- analysis showed that protective factors of liver AED are: male (ORc = 0.38, 95%CI= 0.20 to 0.72), age > 35 years (ORc=0.38, CI95%=0.20 to 0.72), acetylator phenotype fast / intermediate of N-acetyltransferase 2 (ORc=0.41, 95% I= 0.18 to 0.90). Conclusion: There is evidence to support the management of antituberculosis AED in public health services.
189

Black-, grey-, and white-box side-channel programming for software integrity checking

Liu, Hong January 1900 (has links)
Doctor of Philosophy / Department of Computing and Information Sciences / Eugene Vasserman / Checking software integrity is a fundamental problem of system security. Many approaches have been proposed trying to enforce that a device runs the original code. Software-based methods such as hypervisors, separation kernels, and control flow integrity checking often rely on processors to provide some form of separation such as operation modes and memory protection. Hardware-based methods such as remote attestation, secure boot, and watchdog coprocessors rely on trusted hardware to execute attestation code such as verifying memory content and examining signatures appearing on buses. However, many embedded systems do not possess such sophisticated capabilities due to prohibitive hardware costs, unacceptably high power consumption, or the inability to update fielded components. Further, security assumption may become invalid as time goes by. For Systems-on-Chip (SoCs), in particular, internal activities cannot be observed directly, while in non-SoCs, sniffing bus traffic between constituent components may suffice for integrity checking. A promising approach to check software integrity for resource-constrained SoCs is through side-channels. Side-channels have been used mostly for attacks, such as eavesdropping from vibration of glass or plant leaves, fingerprinting machines from traffic patterns, or extracting secret key materials of cryptographic routines using power consumption measurements. In this work, side-channels are used to enhance rather than undercut security. First, we study the relationships between the internal states of a target device and side-channel information. We use the uncovered relationships to monitor the internal state of a running device and determine whether the internal state is an expected one. An unexpected state may be a sign of incorrect execution or malicious activity. To further explore the possibilities inherent in side-channel-based software integrity checking, we investigate various hardware platforms, representative of different degrees of knowledge of the hardware from the side-channel profiling point of view. In other words, side-channel information is extracted by black-, grey-, and white-box analysis. Each one involves unique challenges requiring different techniques to successfully derive “side-channel profiles”. We can use these profiles to detect unexpected states with extremely high probability, even when an adversary knows that their code may be subject to side-channel analysis, i.e., the methodology is robust to side-channel-aware adversaries. The research includes: (1) Constructing systematic approaches for black- and grey-box profiling of side channels (and comparing them to white-box analysis); (2) Designing custom measurement instrumentation; and (3) Developing techniques for monitoring and enforcing software integrity utilizing side-channel profiles. We introduce the term “side-channel programming” to refer to techniques we design in which developers explicitly utilize side-channel characteristics of existing hardware to optimize run-time software integrity checking, creating executable code which is more conducive to side-channel-based monitoring. Compared with other software integrity checking techniques, our approach has numerous benefits. Among them are that the measurement process is non-invasive, non-interruptive, and backward-compatible in that it does not require any hardware modification, meaning our approach works with processors that do not include security features. Our method can even be used to augment existing protection mechanism, as it works even when all security mechanisms internal to the device fail.
190

The influence of superoxide and anti-oxidants on human sperm function and apoptosis with special reference to the role of red palm oil

Aboua, Yapo Guillaume January 2006 (has links)
Thesis (MTech (Biomedical Technology))--Cape Peninsula University of Technology, 2006 / Cells living under aerobic conditions constantly face the oxygen paradox i.e. oxygen is indispensable for supporting life; however, its metabolites such as reactive oxygen species (ROS) can modify cell function. Oxidative stress (OS) arises as a consequence of excessive ROS production and/or impaired antioxidant defence mechanisms. Environmental and physiological factors have been implicated in poor sperm function. Excessive ROS generation results in oxidative damage and consequently decreased sperm function. The objectives of this study are threefold: (i) To measure the production of O 2 -. by sperm by means of flow cytometry. (ii) To determine effects of O2 -. on sperm motility and viability in the presence or absence of commercially available scavengers and RPO. (iii) To determine effects of O2 -. on selective apoptotic markers in ejaculated sperm in the presence of absence of commercially available scavengers and RPO. In the first part of the study, suitable solvents were investigated in order to introduce RPO (because of its hydrophobic nature) as a possible scavenger of ROS in human spermatozoa. Secondly, the O2 -. donor; 2, 3-dimetoxy-1-naphthoquinone (DMNQ) (2.5~M-100~M, 60 min.) was added to normozoospermic post swim-up samples in the absence or presence of Mn(lIl)TMPyP (50~M) or SOD (501U) or RPO at 0.1% and 0.5%. CASA was used to analyse motility parameters, while FACS was used to determine viability (PI, 1mM, 15 min.) and O2 -. levels (DHE, 30~M, 15min.).

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