990 resultados para 029903 Medical Physics


Relevância:

30.00% 30.00%

Publicador:

Resumo:

Albert Kahn, architect. Built 1924. East University on site of old medical building which was razed in 1914. Also called New Physics and East Physics.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Albert Kahn, architect. Built 1924. East University on site of old medical building which was razed in 1914. Also called New Physics and East Physics.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Albert Kahn, architect. Built 1924. East University on site of old medical building which was razed in 1914. Also called New Physics and East Physics.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Albert Kahn, architect. Built 1924. East University on site of old medical building which was razed in 1914. Also called New Physics and East Physics.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Albert Kahn, architect. Built 1924. East University on site of old medical building which was razed in 1914. Also called New Physics and East Physics.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Albert Kahn, architect. Built 1924. East University on site of old medical building which was razed in 1914. Also called New Physics and East Physics.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Albert Kahn, architect. Built 1924. East University on site of old medical building which was razed in 1914. Also called New Physics and East Physics.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Half-title: Vetera et nova; or, Extracts from the diary of a medical practitioner.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Coleridge, looking back at the end of the ‘long eighteenth century’, remarked that the whole of natural philosophy had been ‘electrified’ by advances in the understanding of electrical phenomena. In this paper I trace the way in which these advances affected contemporary ‘neurophysiology.’ At the beginning of the long eighteenth century, neurophysiology (in spite of Swammerdam’s and Glisson’s demonstrations to the contrary) was still understood largely in terms of hollow nerves and animal spirits. At the end of that period the researches of microscopists and electricians had convinced most medical men that the old understanding had to be replaced. Walsh, Patterson, John Hunter and others had described the electric organs of electric fish. Gray and Nollet had demonstrated that electricity was not merely static, but flowed. Franklin had alerted the world to atmospheric electricity. Galvani’s frog experiments were widely known. Volta had invented his ‘pile.’ But did ‘animal electricity’ exist and was it identical to the electricity physicists studied in the inanimate world? Was the brain a gland, as Malpighi’s researches seemed to confirm., and did it secrete electricity into the nervous system? The Monros (primus and secundus), William Cullen, Luigi Galvani, Alessandro Volta, Erasmus Darwin, Luigi Rolando and François Baillarger all had their own ideas. This paper reviews these ‘long-eighteenth century’ controversies with special reference to the Edinburgh medical school and the interaction between neurophysiology and physics.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Evidence suggests that inactivity during a hospital stay is associated with poor health outcomes in older medical inpatients. We aimed to estimate the associations of average daily step-count (walking) in hospital with physical performance and length of stay in this population. Medical in-patients aged ⩾65 years, premorbidly mobile, with an anticipated length of stay ⩾3 d, were recruited. Measurements included average daily step-count, continuously recorded until discharge, or for a maximum of 7 d (Stepwatch Activity Monitor); co-morbidity (CIRS-G); frailty (SHARE F-I); and baseline and end-of-study physical performance (short physical performance battery). Linear regression models were used to estimate associations between step-count and end-of-study physical performance or length of stay. Length of stay was log transformed in the first model, and step-count was log transformed in both models. Similar models were used to adjust for potential confounders. Data from 154 patients (mean 77 years, SD 7.4) were analysed. The unadjusted models estimated for each unit increase in the natural log of stepcount, the natural log of length of stay decreased by 0.18 (95% CI −0.27 to −0.09). After adjustment of potential confounders, while the strength of the inverse association was attenuated, it remained significant (βlog(steps) = −0.15, 95%CI −0.26 to −0.03). The back-transformed result suggested that a 50% increase in step-count was associated with a 6% shorter length of stay. There was no apparent association between step-count and end-of-study physical performance once baseline physical performance was adjusted for. The results indicate that step-count is independently associated with hospital length of stay, and merits further investigation.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Measuring and fulfilling user requirements during medical device development will result in successful products that improve patient safety, improve device effectiveness and reduce product recalls and modifications. Medical device users are an extremely heterogeneous group and for any one device the users may include patients, their carers as well as various healthcare professionals. There are a number of factors that make capturing user requirements for medical device development challenging including the ethical and research governance involved with studying users as well as the inevitable time and financial constraints. Most ergonomics research methods have been developed in response to such practical constraints and a number of these have potential for medical device development. Some are suitable for specific points in the device cycle such as contextual inquiry and ethnography, others, such as usability tests and focus groups may be used throughout development. When designing user research there are a number of factors that may affect the quality of data collected including the sample of users studied, the use of proxies instead of real end-users and the context in which the research is performed. As different methods are effective in identifying different types of data, ideally more than one method should be used at each point in development, however financial and time factors may often constrain this.