853 resultados para Isostatic pressing.


Relevância:

10.00% 10.00%

Publicador:

Resumo:

Myelodysplastic syndromes (MDS) represent a broad spectrum of diseases characterized by their clinical manifestation as one or more cytopenias, or a reduction in circulating blood cells. MDS is predominantly a disease of the elderly, with a median age in the UK of around 75. Approximately one third of MDS patients will develop secondary acute myeloid leukemia (sAML) that has a very poor prognosis. Unfortunately, most standard cytotoxic agents are often too toxic for older patients. This means there is a pressing unmet need for novel therapies that have fewer side effects to assist this vulnerable group. This challenge was tackled using bioinformatic analysis of available transcriptomic data to establish a gene-based signature of the development and progression of MDS. This signature was then used to identify novel therapeutic compounds via statistically-significant connectivity mapping. This approach suggested re-purposing an existing and widely-prescribed drug, bromocriptine as a novel potential therapy in these disease settings. This drug has shown selectivity for leukemic cells as well as synergy with current therapies.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

For those working in the humanitarian sector, achieving positive outcomes for postdisaster communities through reconstruction projects is a pressing concern. In the wake of recent natural disasters, NGOs have become increasingly involved in the permanent reconstruction of affected communities. They have encountered significant barriers as they implement reconstruction programmes and this paper argues that it is important to address the visible lack of innovation that is partially to blame. The theoretical bedrock of a current research project will be used as the starting point for this argument, the overall goal of which is to design a competency-based framework model that can be used by NGOs in post-disaster reconstruction projects. Drawing on established theories of management, a unique perspective has been developed from which a competency-based reconstruction theory emerges. This theoretical framework brings together 3 distinct fields; Disaster Management, Strategic Management and Project Management, each vital
to the success of the model. The objectives of this paper are a) to investigate the role of NGOs in post-disaster reconstruction and establish the current standard of practice b) to determine the extent to which NGOs have the opportunity to contribute to sustainable community development through reconstruction c) to outline the main factors of a theoretical framework first proposed by Von Meding et al. 2009 and d) to identify the innovative measures that can be taken by NGOs to achieve more positive outcomes in their interventions. It is important that NGOs involved in post-disaster reconstruction become familiar with concepts and strategies such as those contained in this paper. Competency-based organizational change on the basis of this theory has the potential to help define the standard of best practice to which future NGO projects might align themselves.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Administrative systems such as health care registration are of increasing importance in providing information for statistical, research, and policy purposes. There is thus a pressing need to understand better the detailed relationship between population characteristics as recorded in such systems and conventional censuses. This paper explores these issues using the unique Northern Ireland Longitudinal Study (NILS). It takes the 2001 Census enumeration as a benchmark and analyses the social, demographic and spatial patterns of mismatch with the health register at individual level. Descriptive comparison is followed by multivariate and multilevel analyses which show that approximately 25% of individuals are reported to be in different addresses and that age, rurality, education, and housing type are all important factors. This level of mismatch appears to be maintained over time, as earlier migrants who update their address details are replaced by others who have not yet done so. In some cases, apparent mismatches seem likely to reflect complex multi-address living arrangements rather than data error.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Willingness to lay down one’s life for a group of non-kin, well documented in the
historical and ethnographic records, represents an evolutionary puzzle. Here we
present a novel explanation for the willingness to fight and die for a group, combining evolutionary theorizing with empirical evidence from real-world human groups. Building on research in social psychology, we develop a mathematical model showing how conditioning cooperation on previous shared experience can allow extreme (i.e., life-threatening) pro-social behavior to evolve. The model generates a series of predictions that we then test empirically in a range of special sample populations (including military veterans, college fraternity/sorority members, football fans, martial arts practitioners, and twins). Our results show that sharing painful experiences produces “identity fusion” – a visceral sense of oneness – more so even than bonds of kinship, in turn motivating extreme pro-group behavior, including willingness to fight and die for the group. These findings have theoretical and practical relevance. Theoretically, our results speak to the origins of human cooperation, as we offer an explanation of extremely costly actions left unexplained by existing models.
Practically, our account of how shared dysphoric experiences produce identity fusion, which produces a willingness to fight and die for a non-kin group, helps us better understand such pressing social issues as suicide terrorism, holy wars, sectarian violence, gang-related violence, and other forms of intergroup conflict.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

O principal objectivo deste trabalho foi sistematizar características físico- químicas dos azulejos para conservação e restauro de fachadas azulejares da cidade de Ovar, pertencentes à fase produtiva da semi-industrialização e industrialização dos finais do século XIX inico do século XX, de forma a produzir réplicas técnicas para recolocação nos locais de fachada com lacunas de azulejo. Além de se ter criado uma base de dados sobre estes materiais, formularam-se réplicas para os corpos cerâmicos calcários e pó de pedra, sugerindo matérias-primas e grau de moagem para a sua formulação, pressão de prensagem, ciclo e temperaturas máximas de cozedura conferindo-lhes características técnicas para que estas possam ser aplicadas lado a lado com os azulejos seculares, sem que perturbem a unicidade técnica da fachada. Investigaram-se duas das patologias mais recorrentes que afectam o vidrado: destacamento por cristalização de sais e fendilhamento. A primeira afecta a perda da parte pictórica do azulejo, atirando-o para uma remoção compulsiva da fachada aquando da sua intervenção para conservação restauro. A segunda permite-nos compreender possíveis compromissos técnicos feitos no passado.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

As transformações tecnológicas e a crescente heterogeneidade dos alunos que frequentam o Ensino Superior, bem como a premente necessidade de financiamento num universo cada vez mais competitivo têm tornado necessária a implementação de mudanças ao nível das instituições que, cada vez mais têm de diversificar e flexibilizar a sua oferta pedagógica sem comprometer a qualidade de ensino aprendizagem. Encarado por muitos como uma solução viável e prática, o blearning tem vindo a assumir uma importância crescente neste contexto. No entanto, subsistem algumas dúvidas relativamente à forma como os cursos nesta modalidade estão a ser implementados e o seu impacto real nas aprendizagens dos alunos. Neste sentido torna-se necessário proceder à sua avaliação, aferindo a sua qualidade, validade e identificando vantagens e áreas problemáticas. Com uma vertente interventiva, uma vez que se desenvolveu um plano de atuação e se apresentou uma lista de recomendações, e assumindo a forma de um estudo de avaliação, esta investigação pretendeu cumprir esse desígnio. Envolvendo alunos, docentes e responsáveis institucionais procurou caracterizar-se e analisar-se a componente online do Mestrado em Turismo, Inovação e Desenvolvimento a funcionar na Escola Superior de Tecnologia e Gestão de Viana do Castelo, partindo dessa análise para a reflexão conjunta e trabalho de campo. Globalmente, concluiu-se que, muito embora os intervenientes assumam um posicionamento favorável à adoção do blearning, subsistem algumas reservas e desconhecimento por parte dos docentes e responsáveis relativamente à sua implementação na prática, verificando-se ainda uma grande discrepância entre as expectativas iniciais dos alunos e as suas perceções após um ano de frequência do mestrado. A lista final de recomendações a apresentar à instituição refletiu todo este processo, sendo o corolário de todo um trabalho que se pretende ver continuado e alargado a outros cursos e instituições.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Tese dout., Ciências do Mar (Ecologia Marinha), Faculdade de Ciências e Tecnologia, Univ. do Algarve, 2010

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Volunteer administrators from 105 hospitals in five states in the northeast and southern United States provided open-ended survey responses about what they perceived to be the most pressing challenges and opportunities facing healthcare volunteer management. Taken together, these 105 hospitals used a total of 39,008 volunteers and 5.3 million volunteer hours during a 12-month period between 2010 and 2011. A qualitative content analysis of administrator responses suggests that primary challenges include volunteer recruitment and retention, administrative issues, and operational difficulties brought about by the current economic crisis. Key opportunities include more explicitly linking the volunteer function to hospital outcomes and community impact, expanding volunteer recruitment pools and roles and jobs, and developing organizational support for volunteers and making the volunteer management function more efficient and effective.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

The ecological sciences have experienced immense growth over the course of this century, and chances are that they will continue to grow well on into the next millennium. There are some good reasons for this – ecology encompasses some of the most pressing concerns facing humanity. With recent advances in data collection technology and ambitious field research, ecologists are increasingly calling upon multivariate statistics to explore and test for patterns in their data. The goal of FISH 560 (Applied Multivariate Statistics for Ecologists) at the University of Washington is to introduce graduate students to the multivariate statistical techniques necessary to carry out sophisticated analyses and to critically evaluate scientific papers using these approaches. It is a practical, hands-on course emphasizing the analysis and interpretation of multivariate analysis, and covers the majority of approaches in common use by ecologists. To celebrate the hard work of past students, I am pleased to announce the creation of the Electronic Journal of Applied Multivariate Statistics (EJAMS). Each year, students in FISH 560 are required to write a final paper consisting of a statistical analysis of their own multivariate data set. These papers are submitted to EJAMS at the end of quarter and are peer reviewed by two other class members. A decision on publication is based on the reviewers’ recommendations and my own reading the paper. In closing, there is a need for the rapid dissemination of ecological research using multivariate statistics at the University of Washington. EJAMS is committed to this challenge.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Tese de doutoramento, Educação (História da Educação), Universidade de Lisboa, Instituto de Educação, 2014

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Trabalho de projeto de mestrado, Educação (Especialidade em Educação e Tecnologias Digitais), Universidade de Lisboa, Instituto de Educação, 2014

Relevância:

10.00% 10.00%

Publicador:

Resumo:

The aim of this investigation was to establish median performance profiles for the six playing positions in elite women’s indoor hockey and then identify whether these position-specific profiles could discriminate between qualifying (top four), mid-table and relegated teams in the 2011-12 England Hockey premier league. Successful passing in relegated teams was significantly lower (p<0.008) than in mid-table and qualifying teams in four of the five outfield positions. Furthermore, the right backs of qualifying teams demonstrated significantly fewer (p<0.008) unsuccessful passes (x̃=15.5 ±CLs 15.0 and 10.0 respectively) and interceptions (x̃=4.0 ±CLs 4.0 and 3.0 respectively) than relegated teams (x̃=19.5 ±CLs 21.0 and 17.0; x̃=7.5 ±CLs 8.0 and 6.0 respectively). Finally, the right forwards of relegated teams demonstrated significantly fewer (p<0.008) successful interceptions (x̃=4.0 ±CLs 5.0 and 4.0 respectively) than qualifying teams (x̃=5.0 ±CLs 6.0 and 3.0 respectively) and significantly more (p<0.008) unsuccessful interceptions (x̃=5.5 ±CLs 6.0 and 4.0 respectively) than mid-table teams (x̃=3.0 ±CLs 3.0 and 2.0 respectively). Based on these findings, coaches should adapt tactical strategies and personnel deployment accordingly to enhance the likelihood of preparing a qualifying team. Research should build from these data to examine dribbling, pressing and patterns of play when outletting.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Tese de mestrado, Neurociências, Faculdade de Medicina, Universidade de Lisboa, 2015

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Finding the balance between economic development and preservation of the natural environment is a challenging yet important task. This is a particularly pressing issue in the case of China, as it is the largest and fastest-growing market for tourism. The purpose of this research is to examine Chinese tourists’ participation in nature-based, tourism activities by incorporating tourists’ environmental concern, measured by a revised New Environmental Paradigm (NEP) scale, into a tourism constraint-negotiation model. The responses of 409 Chinese tourists show environmental concern will positively affect tourists’ motivation, which, in turn, will affect their negotiation strategy and ultimately their participation behavior. The theoretical and managerial implications of this study are discussed in the context of the tourism literature.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Mestrado em Engenharia Química - Ramo Otimização Energética na Indústria Química