997 resultados para McPherran, Edgar W.


Relevância:

20.00% 20.00%

Publicador:

Resumo:

Infection is a leading cause of neonatal morbidity and mortality worldwide. Premature neonates are particularly susceptible to infection because of physiologic immaturity, comorbidity, and extraneous medical interventions. Additionally premature infants are at higher risk of progression to sepsis or severe sepsis, adverse outcomes, and antimicrobial toxicity. Currently initial diagnosis is based upon clinical suspicion accompanied by nonspecific clinical signs and is confirmed upon positive microbiologic culture results several days after institution of empiric therapy. There exists a significant need for rapid, objective, in vitro tests for diagnosis of infection in neonates who are experiencing clinical instability. We used immunoassays multiplexed on microarrays to identify differentially expressed serum proteins in clinically infected and non-infected neonates. Immunoassay arrays were effective for measurement of more than 100 cytokines in small volumes of serum available from neonates. Our analyses revealed significant alterations in levels of eight serum proteins in infected neonates that are associated with inflammation, coagulation, and fibrinolysis. Specifically P- and E-selectins, interleukin 2 soluble receptor alpha, interleukin 18, neutrophil elastase, urokinase plasminogen activator and its cognate receptor, and C-reactive protein were observed at statistically significant increased levels. Multivariate classifiers based on combinations of serum analytes exhibited better diagnostic specificity and sensitivity than single analytes. Multiplexed immunoassays of serum cytokines may have clinical utility as an adjunct for rapid diagnosis of infection and differentiation of etiologic agent in neonates with clinical decompensation.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Biodiversity continues to decline in the face of increasing anthropogenic pressures such as habitat destruction, exploitation, pollution and introduction of alien species. Existing global databases of species’ threat status or population time series are dominated by charismatic species. The collation of datasets with broad taxonomic and biogeographic extents, and that support computation of a range of biodiversity indicators, is necessary to enable better understanding of historical declines and to project – and avert – future declines. We describe and assess a new database of more than 1.6 million samples from 78 countries representing over 28,000 species, collated from existing spatial comparisons of local-scale biodiversity exposed to different intensities and types of anthropogenic pressures, from terrestrial sites around the world. The database contains measurements taken in 208 (of 814) ecoregions, 13 (of 14) biomes, 25 (of 35) biodiversity hotspots and 16 (of 17) megadiverse countries. The database contains more than 1% of the total number of all species described, and more than 1% of the described species within many taxonomic groups – including flowering plants, gymnosperms, birds, mammals, reptiles, amphibians, beetles, lepidopterans and hymenopterans. The dataset, which is still being added to, is therefore already considerably larger and more representative than those used by previous quantitative models of biodiversity trends and responses. The database is being assembled as part of the PREDICTS project (Projecting Responses of Ecological Diversity In Changing Terrestrial Systems – www.predicts.org.uk). We make site-level summary data available alongside this article. The full database will be publicly available in 2015.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Este relatório pretende descrever a experiência proporcionada pelo estágio efetuado no departamento de Style do hotel W Barcelona, enquanto supervisor de housekeeping. Para melhor conseguir definir esta experiência, é feita uma caraterização da entidade de acolhimento, referindo os elementos diferenciadores associados à brand do hotel, assim como aspetos gerais da cadeia hoteleira a que esta está liga. Segue-se uma revisão de literatura onde é explorada a descrição do departamento de alojamento e do subdepartamento de housekeeping. Nesta revisão focam-se as funções dos vários colaboradores pertencentes ao subdepartamento, assim como os variados documentos inerentes ao decorrer da operação. Posteriormente é feita uma descrição da realidade do hotel, ao nível da área de housekeeping: relata-se as funções dos vários elementos do departamento, dando-se especial destaque à função de supervisor de andares. Refere-se quais os procedimentos e relatórios exigidos, durante a operativa do hotel. Comenta-se, também, a implementação de um sistema (REX), que visa melhorar o desempenho deste departamento. Comparando os conceitos obtidos através da revisão da literatura com a realidade do hotel verifica-se que não é fácil implementar grandes inovações, dentro da área do housekeeping, e que a forma de operar não conheceu profundas alterações nos últimos dez anos e conclui-se que este hotel estabeleceu para a operativa, procedimentos estandardizados.

Relevância:

20.00% 20.00%

Publicador: