195 resultados para devising
Resumo:
HIV epidemic continues to be a severe public health problem and concern within USA and across the globe with about 33 million people infected with HIV. The frequency of drug abuse among HIV infected patients is rapidly increasing and is another major issue since injection drug users are at a greater risk of developing HIV associated neurocognitive dysfunctions compared to non-drug users infected with HIV. Brain is a major target for many of the recreational drugs and HIV. Evidences suggest that opiate drug abuse is a risk factor in HIV infection, neural dysfunction and progression to AIDS. The information available on the role of morphine as a cofactor in the neuropathogenesis of HIV is scanty. This review summarizes the results that help in understanding the role of morphine use in HIV infection and neural dysfunction. Studies show that morphine enhances HIV-1 infection by suppressing IL-8, downregulating chemokines with reciprocal upregulation of HIV coreceptors. Morphine also activates MAPK signaling and downregulates cAMP response element-binding protein (CREB). Better understanding on the role of morphine in HIV infection and mechanisms through which morphine mediates its effects may help in devising novel therapeutic strategies against HIV-1 infection in opiate using HIV-infected population.
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Major portion of hurricane-induced economic loss originates from damages to building structures. The damages on building structures are typically grouped into three main categories: exterior, interior, and contents damage. Although the latter two types of damages, in most cases, cause more than 50% of the total loss, little has been done to investigate the physical damage process and unveil the interdependence of interior damage parameters. Building interior and contents damages are mainly due to wind-driven rain (WDR) intrusion through building envelope defects, breaches, and other functional openings. The limitation of research works and subsequent knowledge gaps, are in most part due to the complexity of damage phenomena during hurricanes and lack of established measurement methodologies to quantify rainwater intrusion. This dissertation focuses on devising methodologies for large-scale experimental simulation of tropical cyclone WDR and measurements of rainwater intrusion to acquire benchmark test-based data for the development of hurricane-induced building interior and contents damage model. Target WDR parameters derived from tropical cyclone rainfall data were used to simulate the WDR characteristics at the Wall of Wind (WOW) facility. The proposed WDR simulation methodology presents detailed procedures for selection of type and number of nozzles formulated based on tropical cyclone WDR study. The simulated WDR was later used to experimentally investigate the mechanisms of rainwater deposition/intrusion in buildings. Test-based dataset of two rainwater intrusion parameters that quantify the distribution of direct impinging raindrops and surface runoff rainwater over building surface — rain admittance factor (RAF) and surface runoff coefficient (SRC), respectively —were developed using common shapes of low-rise buildings. The dataset was applied to a newly formulated WDR estimation model to predict the volume of rainwater ingress through envelope openings such as wall and roof deck breaches and window sill cracks. The validation of the new model using experimental data indicated reasonable estimation of rainwater ingress through envelope defects and breaches during tropical cyclones. The WDR estimation model and experimental dataset of WDR parameters developed in this dissertation work can be used to enhance the prediction capabilities of existing interior damage models such as the Florida Public Hurricane Loss Model (FPHLM).^
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This multi-disciplinary research project explores the religious and cultural foundations within the “master commemorative narratives” that frame Israeli and Iranian political discourse. In articulating their grievances against one another, Israeli and Iranian leaders express the tensions between religion, nationalism, and modernity in their own societies. The theoretical and methodological approach of this dissertation is constructivist-interpretivist. The concept of “master commemorative narratives” is adapted from Yael Zerubavel’s study of ritualized remembrance in Israeli political culture, and applied to both Israeli and Iranian foreign policy. Israel’s master commemorative narrative draws heavily upon the language of the Hebrew Bible, situating foreign policy discourse within a paradigm of covenantal patrimony, exile, and return, despite the unrelenting hostility of eternal enemies and “the nations.” Iran’s master commemorative narrative expresses Iranian suspicion of foreign encroachment and interference, and of the internal corruption that they engender, sacralizing resistance to the forces of evil in the figurative language and myths of pre-Islamic tradition and of Shi‘a Islam. Using a constructivist-interpretive methodological approach, this research offers a unique interpretive analysis of the parallels between these narratives, where they intersect, and where they come into conflict. It highlights both the broad appeal and the diverse challenges to the components of these “master” narratives within Israeli and Iranian politics and society. The conclusion of this study explains the ways in which the recognition of religious and cultural conflicts through the optic of master commemorative narratives can complement the perspectives of other theoretical approaches and challenge the conventions of Security Studies. It also suggests some of the potential practical applications of this research in devising more effective international diplomacy.
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Carbon-carbon and carbon-heteroatom bond formations constitute the central events in organic synthesis. In view of this, much of the research in organic synthesis has been focused on devising novel and efficient methods for such bond constructions. In general, polar, pericyclic and radical methodologies are employed for this purpose. The polar and radical reactions proceed via reactive intermediates such as carbanions, enols/enolates, enamines, carbocations, radical cations, radical anions, carbenes, zwitterions etc. In recent years, there has been enormous interest in the chemistry of zwitterionic species largely from the standpoint of their applications in multicomponent reactions (MCRs) and organocatalytic reactions. Zwitterions formed by the addition of nucleophiles to electrophilic π-systems such as acetylenic esters and azoesters have been the subject of extensive investigations; their synthetic utility, however, remained largely unexplored. Investigations in a number of laboratories, including our own, have shown that zwitterions of the type mentioned above on reaction with electrophiles give rise to carbo- and heterocyclic products by 1,3- or 1,4-dipolar cycloadditions. Recently, allenoates, another class of active π-systems were introduced to this field. Against this background, a systematic investigation of the reactions of various zwitterions derived from allenoates with different electrophiles especially 1,2-diones, were carried out. The results of these studies are embodied in the thesis entitled “Novel Synthesis of Carbocycles and Heterocycles Employing Zwitterions Derived from Allenic Esters”.
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Like its title, Pyramus and Thisbe 4 You, Alexandru Dabija’s production at the Odeon Theatre, Bucharest, was a tongue-in-cheek invitation to the audience that at once aimed to tease past and recent Romanian endeavours and to tease out the stage potential a Shakespeare play holds today. My examination of the production re-constructs the local cultural contexts the production plays with and against, referring to the Romanian ways of making Shakespeare this production enters into dialogue with. Take 1, an all-female version casting the mature stars of the Odeon, I read against both Elizabethan all-male stage practice and Andrei Serban’s all-female Lear at the Bulandra (2008). Take 2, “an old device” (V.1.50): a teacher-student “devising” session at the Academy of Theatre and Cinema, I read against critics’ “more strange than true” (V.1.2) parlance on “theories of perception and reception” and against hi-tech Shakespeare dominating the Romanian stages in the first decade of the third millennium. Take 3, local political banter on ethnic discrimination, I read as “satire keen and critical” (V.1.54) on both communist censorship and the recent rise of nationalism in Romania. Take 4, a “cold” reading-cum-improvisation performed by the technical crew – this production’s mechanicals – I read as “palpable-gross play” (V.1.376) on both acting and spectating practices. What I argue in this article is that Dabija’s production goes beyond its local context and mores, and proposes a re-assessment of Shakespeare’s cultural currency in (European) Romania and Europe at large by exposing current tyrannies in Shakespeare studies: from translation and adaptation, through directing and acting, to viewing and reviewing.
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Thesis (Ph.D.)--University of Washington, 2016-08
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Hospitals from ancient Seville had an important heritage for survival of the institution and its patients. In order to keep this heritage, the officialdom settled down several control mechanisms that would serve to manage a profitable management of their income and rights. For this purpose, they developed devising instruments able to preserve their possessions and put them into operation. This article attempts to identify the defining elements of these books, called “protocolos de bienes” (protocols goods), indicating their characteristics and evolution from archaic models until the final form. This final form was reached late sixteenth and early seventeenth century, at which time devoted use main codex of hospitality. To do this, we used the documentary collec-tions of Seville, preserved in different archives of the city, from where they have taken several significant examples showing the changes that occurred in both its internal structure and its mate-rials manufacturing, underlining the participation of official, booksellers, illuminators and calligraphers. Similarly, it has high-lighted the multifaceted and multifunctional character of this ins-titutions that became also a corporate identity. The multiplicity of hospitals in Sevilla had different types and features of protocols, which were modificated according to the different needs of each institution.
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Background and Aims To determine the expression of autistic and positive schizotypal traits in a large sample of adults with bipolar disorder (BD), and the effect of co-occurring autistic and positive schizotypal traits on global functioning in BD. Methods Autistic and positive schizotypal traits were assessed in 797 individuals with BD recruited by the Bipolar Disorder Research Network (BDRN), using the Autism-Spectrum Quotient and Kings Schizotypy Questionnaire (KSQ), respectively. Differences in global functioning (rated using the Global Assessment Scale) during lifetime worst depressive and manic episodes (GASD and GASM respectively) were calculated in groups with high/low autistic and positive schizotypal traits. Regression analyses assessed the interactive effect of autistic and positive schizotypal traits on global functioning. Results 47.2% (CI = 43.7–50.7%) showed clinically significant levels of autistic traits. Mean of sample on the KSQ-Positive scale was 11.98 (95% CI: 11.33–12.62). In the worst episode of mania, the high autistic, high positive schizotypal group had better global functioning than the low autistic, low positive schizotypal group (mean difference = 3.72, p = 0.004). High levels of co-occurring traits were associated with better global functioning in both mood states in individuals with a history of psychosis (GASM: p < 0.001; GASD: p = 0.055). Conclusions Expression of autistic and schizotypal traits in adults with BD is prevalent, and may be important to predict course of illness, prognosis, and in devising individualised therapies. Future work should focus on replicating these findings in independent samples, and on the biological and/or psychosocial mechanisms underlying better global functioning in those who have high levels of both autistic and positive schizotypal traits.
Higher Education - Border or Boundary? Can Theatre in Education Help Promote a University Education?
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With the expansion and increased availability of Higher Education the progression to study for an undergraduate degree has been viewed as a simple stepping stone with examination success a straight - forward border pass. Changes in the funding of degree courses has established a series of more challenging boundaries to entry which demand a rigorous assessment of the benefits of Higher Education. The Widening Participation Unit at The University of Worcester has sought to ease this border crossing for pupils whose parents have not been to university. Their experience from previous projects was that school pupils more easily relate to undergraduate students whose experience of Higher Education is recent and relevant. With this in mind they commissioned the Drama and Performance Department to create a Theatre in Education programme that introduced an awareness of post sixteen options and future choices to challenge Higher Education stereotypes. As a result of this collaboration Why Bother? was created, directed by myself and devised and researched with four students who were studying drama. Their own experiences were used to inform the character development and dealt with worrying as a mature student about integration into full – time education, loss of income after working, the pressures of emotional commitments to partners and being away from home. The programme toured to two thousand year 9 – 11 pupils in Worcestershire and Herefordshire schools in January and May 2011. Devising and touring Why Bother provided students with an opportunity to work as a professional paid TIE team that it is not possible for them to do as part of their undergraduate degree course. My initial research looks at the effectiveness and limitations of this project based on pupil questionnaires and the experiences of the team which are explored within the broader context of TIE and its potential for affecting attitudinal change. This has given rise to a number of questions that need consideration in the development of a new TIE programme aimed at raising the awareness of sixth form students who are about to make the decision whether to apply to university or not. Collaboration with university students in exploring the value of an education that they have subscribed to raises issues of bias and whether their powers of persuasion actually prevent pupils from making their own individual decision. The ethics of promoting a “free” university education seem much less complex than the decision required now which involves balancing the real value against the high financial cost suggested in the working title of Is it Worth it? This paper will present my first attempts to develop research methods and methodologies that will enable me to evaluate the success of this and future TIE.
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With the increasing complexity of today's software, the software development process is becoming highly time and resource consuming. The increasing number of software configurations, input parameters, usage scenarios, supporting platforms, external dependencies, and versions plays an important role in expanding the costs of maintaining and repairing unforeseeable software faults. To repair software faults, developers spend considerable time in identifying the scenarios leading to those faults and root-causing the problems. While software debugging remains largely manual, it is not the case with software testing and verification. The goal of this research is to improve the software development process in general, and software debugging process in particular, by devising techniques and methods for automated software debugging, which leverage the advances in automatic test case generation and replay. In this research, novel algorithms are devised to discover faulty execution paths in programs by utilizing already existing software test cases, which can be either automatically or manually generated. The execution traces, or alternatively, the sequence covers of the failing test cases are extracted. Afterwards, commonalities between these test case sequence covers are extracted, processed, analyzed, and then presented to the developers in the form of subsequences that may be causing the fault. The hypothesis is that code sequences that are shared between a number of faulty test cases for the same reason resemble the faulty execution path, and hence, the search space for the faulty execution path can be narrowed down by using a large number of test cases. To achieve this goal, an efficient algorithm is implemented for finding common subsequences among a set of code sequence covers. Optimization techniques are devised to generate shorter and more logical sequence covers, and to select subsequences with high likelihood of containing the root cause among the set of all possible common subsequences. A hybrid static/dynamic analysis approach is designed to trace back the common subsequences from the end to the root cause. A debugging tool is created to enable developers to use the approach, and integrate it with an existing Integrated Development Environment. The tool is also integrated with the environment's program editors so that developers can benefit from both the tool suggestions, and their source code counterparts. Finally, a comparison between the developed approach and the state-of-the-art techniques shows that developers need only to inspect a small number of lines in order to find the root cause of the fault. Furthermore, experimental evaluation shows that the algorithm optimizations lead to better results in terms of both the algorithm running time and the output subsequence length.
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In 1935, Einstein, Podolsky and Rosen (EPR) questioned the completeness of quantum mechanics by devising a quantum state of two massive particles with maximally correlated space and momentum coordinates. The EPR criterion qualifies such continuous-variable entangled states, where a measurement of one subsystem seemingly allows for a prediction of the second subsystem beyond the Heisenberg uncertainty relation. Up to now, continuous-variable EPR correlations have only been created with photons, while the demonstration of such strongly correlated states with massive particles is still outstanding. Here we report on the creation of an EPR-correlated two-mode squeezed state in an ultracold atomic ensemble. The state shows an EPR entanglement parameter of 0.18(3), which is 2.4 s.d. below the threshold 1/4 of the EPR criterion. We also present a full tomographic reconstruction of the underlying many-particle quantum state. The state presents a resource for tests of quantum nonlocality and a wide variety of applications in the field of continuous-variable quantum information and metrology.
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Global changes linked to increases in temperature and ocean acidification, but also to more direct anthropogenic influences such as aquaculture, have caused a worldwide increase in the reports of Vibrio-associated illnesses affecting humans and also animals such as shrimp and molluscs. Investigation of the emergence of Vibrio pathogenesis events requires the analysis of microbial evolution at the gene, genome and population levels, in order to identify genomic modifications linked to increased virulence, resistance and/or prevalence, or to recent host shift. From a more applied point of view, the elucidation of virulence mechanisms is a prerequisite to devising prophylactic methods to fight infectious agents. In comparison with human pathogens, fairly little is known about the requirements for virulence in vibrios pathogenic to animals. However, the advent of genome sequencing, especially next-generation technologies,the possibility of genetically manipulating most of the Vibrio strains, and the recent availability of standardised animals for experimental infections have now compensated for the considerable delay in advancement of the knowledge of non-model pathogens such as Vibrio and have led to new scientific questions.
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Como elemento primordial, nos cuidados de saúde, o enfermeiro é o profissional, que por mais tempo desenvolve atividades junto do doente, tornando-o assim responsável, por desempenhar um papel fundamental na prevenção das infeções associadas aos cuidados de saúde, mas também o torna potencialmente veículo de transmissão das mesmas. A higienização das mãos é identificada mundialmente como uma medida básica, mas fundamental, no controle de infeções associadas aos cuidados de saúde, logo é considerada como um dos pilares da prevenção e do controle de infeções nos serviços de saúde. O doente crítico é um doente de alto risco, vulnerável por estar sujeito a várias técnicas invasivas, por sua vez o mesmo, é suscetível às infeções cruzadas. Com o intuito de diminuir e/ou eliminar essas mesmas infeções, cabe aos enfermeiros, a realização de momentos de observação, monitorização dos momentos de adesão às boas práticas em resultado do observado, para além do melhoramento em momentos de formação, pois a prática da enfermagem, não sendo estanque, exige ao longo do seu percurso, um processo contínuo de aprendizagem e atualização para que os cuidados sejam de excelência. Cabe ao Enfermeiro Especialista em Enfermagem Médico-cirúrgica, a responsabilidade de conceber estratégias que visem a redução das infeções que poderão ocorrer na prestação de cuidados
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European universities are currently going through a process of change in order to meet the common goals set for higher education by the European Commission. They are revising their educational models to adjust them to the guidelines of the ‘‘Bologna Process’’ and are devising an institutional strategy for its implementation. In practical terms, this means aligning former national degrees and diplomas to standard European Bachelor and Masters degrees and PhD doctorates, by creating acknowledged professional qualification benchmarks that also include adjusted course lengths and contents. This process, in the end, mostly affects academic staff members who have a fundamental role to play in carrying out the pedagogical reforms on the teaching front. Besides presenting a commentary on the institutional approach of one particular technical university in Spain, the purpose of this paper is to propose, from the authors’ point of view as lecturers, a strategy which has the potential to create a favourable atmosphere for carrying out such a reform. The article’s main objective is to highlight a series of action points which may serve to reinforce and advance the main institutional strategy by relying on the powerful influence of its academic staff members
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Este trabajo crea y aplica una metodología acorde con la realidad del país para zonificar la vulnerabilidad estructural y de la población sometida a una amenaza tecnológica, en este caso bajo la influencia de una posible emergencia por derrame de combustibles del poliducto. Una de las finalidades del trabajo es zonificar esta vulnerabilidad como elemento por considerar en la determinación del riesgo, elaboración de planes municipales de contingencia y en las propuestas de ordenamiento territorial.Palabras claves: Poliducto, RECOPE, vulnerabilidad, riesgo, derrame de combustibles, amenaza tecnológica.Abstract: This study develops and applies a methodology in keeping with the reality of the country in order to zone the structural and population vulnerability subject to technological hazard, in this case the influence of a possible emergency due to fuel spill from an oil pipeline. One of the objectives of this study is to zone this vulnerability as an element to consider in determining risk, devising municipal contingency plans and in proposing territorial coding.Keywords: Pipeline, RECOPE, vulnerability, risk, fuel spill, hazard, technological hazard.