Os autores fazem a análise dos doentes submetidos a ventilação mecânica na Unidade de Cuidados Intensivos Pediátricos do Hospital de Dona Estefânia, num período de 33 meses, desde a sua abertura em Abril de 1991 até ao final de Dezembro de 1993.Neste período foram internadas na Unidade 1513 crianças, das quais 264 (17.4%) foram ventiladas.A idade dos doentes ventilados variou entre os 28 dias e os 15 anos (médi...
This manuscript describes the detailed characterization of edible films made from two different protein products e whey protein isolate (WPI) and whey protein concentrate (WPC), added with three levels of glycerol (Gly) e i.e. 40, 50 and 60%(w/w). The molecular structure, as well as barrier, tensile, thermal,surface and optical properties of said films were determined, in attempts to provide a better understand...
O artigo deve também estar associado ao Departamento de Electrotécnia, Tecnologia Mecânica e Química ; In the present work, in vitro blood flowing through a bifurcation microchannel was studied. The aim was to measure the Trajectories of the cell-free layer (CFL) by using different methods, i. e., a manual and two automatic methods.
Diabetic mastopathy (DMP) is an uncommon collection of clinical, radiological, and histological features, classically described in premenopausal women with long-term insulin-dependent diabetes mellitus. This entity can mimic breast carcinoma, but, in the appropriate clinical and imaging setting, the diagnosis can be made by core biopsy, avoiding unnecessary surgeries. We report the case of a 34-year-old female,...
Semi-infinite programming problems can be efficiently solved by reduction type methods. In this work a new global reduction method for semi-infinite programming is presented. The multilocal optimization is carried out with a multistart technique and the reduced problem is approximately solved by a primal-dual interior point method combined with a two-dimensional filter line search strategy. The filter strategy ...
Neste trabalho serão apresentadas diversas variantes do métodos de redução para a resolução de problemas de programação semi-infinita. Estas variantes combinam o método dos filtros com técnicas da programação semi-infinita e da programação multi-local.
Bacillus cereus adherence to stainless steel used to milk contact surfaces was observed, depending on the cleaning and sanitizing procedures applied and the physicochemical properties of the surfaces. Numbers of surviving B. cereus after hygiene procedures were affected by temperature, the concentrations of both alkaline and acid washes, and the pH of the chlorine solution. The adhesion of B. cereus to the stai...
In this work a study of the performance of a low power fuel cell at sub-freezing temperatures has been undertaken. Knowledge in this area is still scarce. After global characterization of the stack on a wide range of temperatures and relative humidity’s the behaviour at negative temperatures (-5ºC -10ºC, -15ºC) has been established. Furthermore, performance was evaluated after the cell was submitted to cycles f...
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