778 resultados para Primary Research
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The interaction of particulates with resident macrophages is a consistent feature in certain forms of crystal-induced inflammation, for example, in synovial tissues, lung, and the peritoneum. The mitogenic activity of basic calcium phosphate (BCP) crystals and calcium pyrophosphate dihydrate (CPPD) crystals on synovial fibroblasts has been considered relevant to the synovial hyperplasia observed in crystal-induced arthritis. The aim of the study was to determine whether microcrystals such as these could enhance macrophage survival and induce DNA synthesis, thus indicating that they may contribute to the tissue hyperplasia.
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Interleukin-11 (IL-11) is a pleiotropic cytokine that regulates the growth and development of hematopoietic stem cells and decreases the proinflammatory mediators of cytokine and nitric oxide production. In animal models of arthritis, treatment with recombinant human IL-11 (rhIL-11) reduces both the level of synovitis and the histologic lesion scores in the joints.
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The induction of autoantibodies to U1 small nuclear ribonucleoprotein (U1 snRNP) complexes is not well understood. We present evidence that healthy individuals with cytomegalovirus (CMV) infection have an increased frequency and quantity of antibodies to ribonucleoprotein, directed primarily against the U1-70k protein. A significant association between the presence of antibodies to CMV and antibodies to the total RNP targeted by the immune response to the spliceosome (to both the Sm and RNP; Sm/RNP) was found for patients with systemic lupus erythematosus (SLE) but not those with mixed connective-tissue disease. CMV thus may play a role in inducing autoimmune responses in a subset of patients with systemic lupus erythematosus.
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This report concerns a clinical trial for rheumatoid arthritis (RA), approved by the US National Institutes of Health and the Food and Drug Administration. An amphotropic retrovirus (MFG-IRAP) was used ex vivo to transfer a cDNA encoding human interleukin-1 receptor antagonist (IL-1Ra) to synovium. The protocol required the transduced cells to secrete at least 30 ng IL-1Ra/106 cells per 48 h before reimplantation. Here we have evaluated various protocols for their efficiency in transducing cultures of human rheumatoid synoviocytes. The most reliably efficient methods used high titer retrovirus (approximately 108 infectious particles/ml). Transduction efficiency was increased further by exposing the cells to virus under flow-through conditions. The use of dioctadecylamidoglycylspermine (DOGS) as a polycation instead of Polybrene (hexadimethrine bromide) provided an additional small increment in efficiency. Under normal conditions of static transduction, standard titer, clinical grade retrovirus (approximately 5 × 105 infectious particles/ml) failed to achieve the expression levels required by the clinical trial. However, the shortfall could be remedied by increasing the time of transduction under static conditions, transducing under flow-through conditions, or transducing during centrifugation.
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In an American postsecondary context, conflict is inherent (Gianneschi & Yanagiura, 2006; Valian, 1999). Successful navigation of conflict in the academy is vital for those who aspire to leadership positions (Nadler & Nadler, 1987; Walters, Stuhlmacher, & Meyer, 1998). Presently, however, women face significant barriers to achieving success in higher education administration, including gender expectations for conflict resolution behavior (Bartunek, 1992; Bowles, Babcock, & McGinn, 2005; Gayle, Preiss, & Allen, 2002). While a considerable body of literature exists for understanding gender negotiation, it remains rooted in a masculine paradigm (Kolb & Putnam, 2006; Shuter & Turner, 1997), and, as such, established theories lack a feminist epistemological perspective. Consequently, my primary research question is, How do women leaders experience and perceive conflict in the higher education work environment? I conduct a qualitative study that examines workplace conflict experiences of 15 women leaders from diverse personal and professional backgrounds. Hartsock's (1983) three-tiered gender-sensitive analysis of power, updated to include multicultural perspectives, serves as my theoretical framework. It is a lens through which I evaluate theories, finding multicultural organizational, higher education conflict, and gender negotiation theories most applicable to this study. The framework also creates the foundation upon which I build my study. Specifically, I determine that a feminist research method is most relevant to this investigation. To analyze data obtained through in depth interviews, I employ a highly structured form of grounded theory called dimensional analysis. Based on my findings, I co-construct with study participants a Feminist Conflict Process Theory and Flowchart in which initially the nature of the relationship, and subsequently the level of risk to the relationship, institution, or self, is evaluated. This study supports that which is observed in the conflict resolution practitioner literature, but is unique in its observation of factors that influence decisions within a dynamic conflict resolution process. My findings are significant to women who aspire to serve in leadership positions in higher education, as well as to the academy as a whole, for it expands our knowledge of women's ontological and epistemological perspectives on resolving conflict in postsecondary education.
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ABSTRACT This study is an account of the literacy-related human environment a Chinese girl experienced as the first person in the history of her family who was able to read prior to entry into elementary school. Temporally speaking, the study spanned more than a decade from the initial, tentative research question to the formal, primary research question. Spatially speaking, it crossed three cultures: the Chinese, Korean, and American cultures. The study was inspired by the Zero Project in China, known as the "Project of Quality Education and Implementation for Children Aged Zero (fetus) to Six." The significance of the content issue in a child's literacy curriculum was explored in an interdisciplinary way. Case study served as a holistic research approach and provided the researcher with free temporal and spatial distance to pursue the indefinably multi-dimensional intricacies of a child's early literacy acquisition among generations in the family. Interpretation of the case was based on the relevant concepts within the scope of the researcher's knowledge of Chinese culture. Major findings revealed that the child's literacy acquisition was inseparably related to her parents' background as well as their awareness of and attitudes towards literacy, and that the foundation of all this was the harmony of the family. Through the lens of generational attitudes towards literacy and especially the lens of the researcher's multicultural life experiences, this study contributes to the field of curriculum studies in general and early literacy curriculum in particular by stimulating people to reconsider what to read to children, besides how to read to them. It calls attention once again to the classic curriculum question, "What knowledge is of most worth?" as well as what is the most essential spiritual food human beings need besides physical needs. This study suggests that Chinese philosophy should be included in a child's early literacy curriculum in China and calls for dialogues on the content issue of curriculum to gain a deeper understanding of human nature so that humans might co-live peacefully with all beings in the universe.
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Dans ce texte, nous soumettons à examen la conception de l'autisme avancée par Laurent Mottron dans son ouvrage L'autisme : une autre intelligence (Mottron, 2004). Le texte comprend quatre parties. Dans la première partie, nous présentons le cadre paradigmatique de l'auteur en matière de troubles envahissants et l'emphase mise sur une catégorie qu'il tient pour majoritaire bien que négligée dans la littérature scientifique et dans les réseaux de services : les troubles envahissants du développement sans déficienceintellectuelle (TEDSDI). Il assimile ce groupe à un nouvel autisme dominant. Dans la deuxième partie, nous montronsque souscrire à l'idée de l'autisme comme une autre forme d'intelligence ne permet pas une conceptualisation adéquate des capacités ni des déficits des personnes concernées. La troisième partie, aborde le problème du traitement de l'autisme. À l'encontre des propos de Mottron, nous défendons la pertinence de traiter l'autisme, notamment par I'intervention comportementale intensive (lCI) et l'analyse appliquée du comportement et jugeons sa position anachronique. D'autre part, la prépondérance et quasiexclusivité qu'il accorde à TEACCH comme réponse sociopsycho-pédagogique apparaît injustifiée. La quatrième partie constitue une critique de l'analyse des émotions chez les personnes autistes que fait l'auteur à partir d'écrits autobiographiques, un retour vers l'introspection comme méthode de recherche. En conclusion, nous déplorons le ton général du propos, trop dialectique, notamment dans sa dichotomisation entre autistes et non autistes. Le militantisme de Mottron pour les « autistes » sans déficience intellectuelle déçoit, de même que le débordement idéologique de sa théorie en faveur de la reconnaissance d'une culture autistique.
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Thesis (Master's)--University of Washington, 2016-06
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Thesis (Ph. D.)--University of Washington, 2016-04
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O presente estudo foi desenvolvido com o objetivo de compreender a construção da identidade profissional de enfermeiros docentes do curso de graduação em Enfermagem de uma instituição privada localizada na cidade de São Paulo. Para tanto, discute os processos de constituição identitária pautado nos estudos de Vera Placco de Souza, no âmbito nacional, e de Maurice Tardif e Claude Dubar, no âmbito internacional. Em uma etapa exploratória, foi aplicado um questionário semi-estruturado a cinco professoras da pós-graduação em Enfermagem e realizada uma entrevista semi-diretiva com dois desses participantes com o objetivo de refinar os instrumentos de coleta. A pesquisa principal fez uso de entrevista realizada com sete professores do curso de graduação em Enfermagem da mesma instituição. Os dados, tanto do estudo exploratório como da pesquisa principal, foram analisados tendo como referência os pressupostos da análise de conteúdo sistematizados por Laurence Bardin e Maria Laura P. B. Franco. Os resultados indicaram que os enfermeiros se tornam professores impelidos pelo desejo de ensinar e de compartilhar conhecimentos, oportunidade de trabalho, flexibilidade de horário e complementação da renda profissional, e são influenciados por professores de sua trajetória formativa e por familiares. As características valorizadas por eles em um professor foram: o domínio do conteúdo ensinado, sobretudo o saber técnico; a busca contínua do conhecimento; ética; profissionalismo; humanização. Nota-se um predomínio das características que envolvem o conhecimento dos conteúdos em detrimento das questões pedagógicas. A reflexão e preocupação com a Docência estão presentes em suas falas, assim como a busca constante para a superação das dificuldades existentes na profissão. Eles consideram a Docência uma profissão com um papel social de destaque do mesmo modo que a Enfermagem. Outro fator destacado nas respostas foi a forte representação do enfermeiro na carreira profissional dos pesquisados. Em seus relatos, foi possível perceber que sua construção como docentes ocorre de forma contínua ao longo da carreira, o que fica evidenciado em suas falas quando afirmam serem melhores professores agora do que no início de sua trajetória profissional e que, apesar de ser uma caminhada espinhosa inicialmente, tornou-se prazerosa e significativa com o passar do tempo. Ressalta-se aqui a importância de se valorizar os saberes do professor, partindo deles e trabalhando-os teórica e conceitualmente para que o docente amplie a compreensão do processo de ensino em saúde que, no mundo contemporâneo, tornou-se de alta complexidade.
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Purpose – The purpose of this paper is to illustrate Michael Thomas's concept of civic professionalism and social trusteeship as a future alternative to the current marketing profession's code of conduct and to put this in the context of climate change and ecological sustainability as a model for firms everywhere. Design/methodology/approach – Review of the marketing profession's responsibility towards society, communities and the ecology of the planet in the twenty-first century in the light of climate change. Findings – The hypothesis for the paper emerges as: whether it is possible for Chinese firms to embrace the needs of twenty-first century global ecological sustainability in meeting their own economic requirements for development and financial prosperity. Research limitations/implications – Limited secondary research and primary research that is also limited in terms of scope. Practical implications – As we move into an era of Chinese economic supremacy, we marketers must face up to the responsibility we have towards balancing the progression of global economic development (and selling goods and services in global market systems) with our responsibility towards our cultural systems and the global ecological system (the global ecosystem), the home of all our economic wealth. Social implications – To extrapolate lessons and opportunities for firms from developing economies as they move towards global domination of world economic markets and, suggest strategies for sustainability that they can, and should, adopt. Originality/value – The paper presents a theoretical framework for a global strategy for sustainability, and provides a vision of marketing responsibility that embraces civic professionalism, social trusteeship and a strategy for sustainability.
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This paper presents a goal programming model to optimise the deployment of pyrolysis plants in Punjab, India. Punjab has an abundance of waste straw and pyrolysis can convert this waste into alternative bio-fuels, which will facilitate the provision of valuable energy services and reduce open field burning. A goal programming model is outlined and demonstrated in two case study applications: small scale operations in villages and large scale deployment across Punjab's districts. To design the supply chain, optimal decisions for location, size and number of plants, downstream energy applications and feedstocks processed are simultaneously made based on stakeholder requirements for capital cost, payback period and production cost of bio-oil and electricity. The model comprises quantitative data obtained from primary research and qualitative data gathered from farmers and potential investors. The Punjab district of Fatehgarh Sahib is found to be the ideal location to initially utilise pyrolysis technology. We conclude that goal programming is an improved method over more conventional methods used in the literature for project planning in the field of bio-energy. The model and findings developed from this study will be particularly valuable to investors, plant developers and municipalities interested in waste to energy in India and elsewhere. © 2014 Elsevier Ltd. All rights reserved.
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The movement of goods is of critical importance to an economy, especially one, which is dependent on international trade such as Ireland. Considering Irelands distribution of manufacturing and other organisations throughout the country, many firms are dependent upon road haulage effectiveness and efficiency. In recent times there has been somewhat of a growing unease in the road haulage industry in relation to increasing cost, squeezing profit margins even tighter. An understanding of the Irish road haulier’s business environment would undoubtedly shed greater light onto their situation. The paper addresses this issue with an analysis of the industry’s competitive environment. The first step of the research methodology was an intensive search for pertinent literature, from which a limited amount of information was obtained. A confined amount of primary research was then carried out. Purposive sampling was used to establish the required respondents. The techniques used were the research conversation approach in combination with semi-structured interviews. Following this a structured postal questionnaire was issued to obtain quantitative statistics. The preliminary results of which are outlined. The analysis identifies a number of issues within the Irish road haulage industry. The paper concludes with the findings that the Irish road haulage industry is at present a brutally competitive environment due to its fragmented nature and the power of its customers. It also identifies the need for further research in order to establish the validity of certain points and issues.
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This article undertakes an empirical analysis of the internal organisation of the CDU along four key dimensions. First, it discusses the model of the 'cartel party', identifying its key features and then setting out four key questions to pose in relation to the CDU's internal organisation, to see whether it approximates to the 'cartel' paradigm. The questions of whether a centralisation of power is visible; whether professionalisation has occurred; whether there has been the anticipated weakening in the power of party functionaries; and whether the CDU has become reliant upon state finances are then answered in the empirical section of the article, drawing upon the author's primary research. It concludes that the 'cartel party' thesis fails in significant respects accurately to reflect the CDU's modern organisation. This is of interest to scholars of the CDU, but also offers some insights on the way in which the cartel party thesis fails adequately to develop an accurate account of internal party organisational change, in particular underestimating the ability of internal actors to thwart reforms, and also the potential functional usefulness of a decentralised party organisation. © 2013 Association for the Study of German Politics.