992 resultados para London 2012
Resumo:
The rate of environmental niche evolution describes the capability of species to explore the available environmental space and is known to vary among species owing to lineage-specific factors. Trophic specialization is a main force driving species evolution and is responsible for classical examples of adaptive radiations in fishes. We investigate the effect of trophic specialization on the rate of environmental niche evolution in the damselfish, Pomacentridae, which is an important family of tropical reef fishes. First, phylogenetic niche conservatism is not detected in the family using a standard test of phylogenetic signal, and we demonstrate that the environmental niches of damselfishes that differ in trophic specialization are not equivalent while they still overlap at their mean values. Second, we estimate the relative rates of niche evolution on the phylogenetic tree and show the heterogeneity among rates of environmental niche evolution of the three trophic groups. We suggest that behavioural characteristics related to trophic specialization can constrain the evolution of the environmental niche and lead to conserved niches in specialist lineages. Our results show the extent of influence of several traits on the evolution of the environmental niche and shed new light on the evolution of damselfishes, which is a key lineage in current efforts to conserve biodiversity in coral reefs.
Resumo:
The feasibility of opportunistic screening of urogenital infections with Chlamydia trachomatis was assessed in a cross-sectional study in 2012, in two cantons of south-western Switzerland: Vaud and Valais. Sexually active persons younger than 30 years, not tested for C. trachomatis in the last three months, were invited for free C. trachomatis testing by PCR in urine or self-applied vaginal swabs. Of 2,461 consenting participants, 1,899 (77%) were women and all but six (0.3%) submitted a sample. Forty-seven per cent of female and 25% of male participants were younger than 20 years. Overall, 134 (5.5%) of 2,455 tested participants had a positive result and were followed up. Seven per cent of all candidates for screening were not invited, 10% of invited candidates were not eligible, 15% of the eligible candidates declined participation, 5% of tested participants testing positive were not treated, 29% of those treated were not retested after six months and 9% of those retested were positive for C. trachomatis. Opportunistic C. trachomatis testing proved technically feasible and acceptable, at least if free of charge. Men and peripheral rural regions were more difficult to reach. Efforts to increase testing and decrease dropout at all stages of the screening procedure are necessary.
Resumo:
Background and Aims: The international E EsAI s tudy g roup is currently d eveloping the first activity index ( EEsAI) specific for E osinophilic Esophagitis (EoE). G oal: T o develop, e valuate and validate the EEsAI. Methods: T he development c omprises three p hases: 1. Selection of c andidate items ( completed); 2. Evaluation of t he activity index i n a first patient cohort (in progress, p atient recruitment completed); and 3. Validation in a s econd EoE patient cohort. F ocus group interviews with patients were used in p hase 1 to g enerate patient r eported outcomes (PRO) according to g uidelines o f regulatory authorities (FDA a nd EMA), whereas the section of biologic items was developed by Delphi rounds o f international E oE experts from E urope and North America. Results: T he EEsAI has a modular c omposition to a ssess the following components o f EoE activity: p atient r eported outcomes, e ndoscopic activity, histologic activity, laboratory activity, a nd quality of l ife (QoL). Definitions for a ll aspects o f endoscopic and histologic appearance were e stablished by consensus r ounds a mong E oE experts. S ymptom a ssessment tools were c reated that t ake into account d ifferent food consistencies as w ell as f ood avoidance and specific processing strategies. The EEsAI i s currently e valuated in a cohort of a dult EoE patients since M arch 2 011 (patient recruitment completed). Conclusions: The EEsAI standardizes outcome assessment in EoE t rials. T he collaboration with i nternational E oE e xperts a s well as f ollowing o f the guidelines f rom regulatory authorities will lead to its wide applicability.
Resumo:
A garantia do bem-estar físico, mental e social das populações tem constituído uma preocupação dos sucessivos governos de Cabo Verde, consubstanciada em importantes instrumentos de orientação política, com impacto a nível da saúde. As principais orientações estratégicas assentam-se sobretudo na melhoria do acesso geográfico e na equidade no acesso à prestação de cuidados de saúde, tendo o país conseguido nas últimas décadas importantes ganhos a esse nível, com a melhoria dos principais indicadores de saúde.
Resumo:
The 2008-2012 Library Services and Technology Act (LSTA) Plan represents a blueprint for the State Library of Iowa’s federally funded activities over the next five years. We feel we have been successful in striking a balance between challenging ourselves to achieve more and being realistic about what we can actually accomplish with current human and financial resources. We have incorporated “Lessons Learned” from the previous five year plan. These include: • Continue to use LSTA funding primarily for projects of statewide impact, an emphasis based on input from the Iowa library community. • Consider carefully the ramifications of taking on additional projects. We have carefully selected a few, new projects. • Leverage staff resources and non-federal funding to carry out our LSTA plan. A number of programs and services identified in the plan also use state funding, including the State Data Center, Iowa Publications Online, Direct State Aid, Open Access and Access Plus. • Measure progress regularly and frequently. We plan to review our progress in implementing the plan at least quarterly and will ask the Iowa Commission of Libraries to review progress annually. • Write objectives that come closer to identifying impact. We believe our target outcomes are do-able and come closer to measuring impact.
Resumo:
This document was prepared by the Iowa Department of Transportation to inform Iowans of planned investments in the state's transportation system over the next five years.
Resumo:
The 2008-2012 Library Services and Technology Act (LSTA) Plan represents a blueprint for the State Library of Iowa’s federally funded activities over the next five years. We feel we have been successful in striking a balance between challenging ourselves to achieve more and being realistic about what we can actually accomplish with current human and financial resources. We have incorporated “Lessons Learned” from the previous five year plan.