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O presente trabalho tem por objetivo principal apresentar uma ferramenta de análise de redes de distribuição radiais ativas conectadas a rede básica e funcionando de maneira ilhada. Os objetivos específicos são avaliar o impacto de fontes renováveis em sistemas radiais de distribuição, considerando impactos da pequena variação a da frequência nos elementos do sistema. A metodologia utilizada é baseada no modelo da varredura considerando droop, sendo o modelo da varredura responsável pelo cálculo do fluxo de potência e o método droop responsável pela inserção de geradores despacháveis de energia. Inicialmente é apresentado objetivo, a motivação, a estrutura da dissertação, seguida da contextualização da geração distribuída no Brasil. Apresenta-se o estado da arte do fluxo de potência para redes de distribuição bem como uma bibliografia auxiliar a respeito de controle para redes de distribuição. Em seguida o método estático da varredura direta e inversa é explicado. Então, a inserção da variação dos parâmetros de rede em função de pequenas variações da frequência é explicada. E por fim, as simulações e suas respectivas análises são feitas em diferentes cenários. Chegou-se à conclusão que a metodologia proposta é eficiente e apresenta resultados coerentes, considerando a dependência com a variação da frequência, a topologia e impactos da geração distribuída.

Objective.—To determine if serum vascular endothelial growth factor (VEGF) and ultrasonic monitoring of vascular dynamics with dynamic vascular analysis at sea level and high altitude correlate with acute mountain sickness symptoms. Methods.—Nine volunteers participated in a staged ascent from sea level to 4300 m undergoing complete transcranial Doppler studies with dynamic vascular analysis. Serum VEGF levels, Lake Louise scores, Spielberger-1 scores, Subjective Exercise Experiences Scale positive scores, and Symptom Checklist-90 surveys were collected after 24 hours at each altitude. Results.—Symptom scores, index of pulsatility, and dynamic flow index differentiated the subjects into 2 distinct groups. Symptomatic subjects had increased VEGF levels at sea level but decreased levels at 4300 m. The dynamic flow index increased in symptomatic subjects at 4300 m compared with the asymptomatic subjects. The mean flow velocity increased in both groups and could not be used to differentiate the subjects. Conclusions.—Altered vascular physiology is associated with acute mountain sickness. Increased vascular permeability increases vascular capacitance, with an increase in dynamic flow index to meet these demands. Altered vascular dynamics were associated with high-altitude cerebral edema in 1 subject. Dynamic vascular analysis demonstrated altered vascular pathophysiology associated with acute mountain sickness. Changes in VEGF were meaningful when interpreted with the dynamic vascular analysis findings. These physiological findings may help explain the vascular changes associated with hypocarbic hypoxemia at altitude.

The Uniformed Services University of the Health Sciences (USHUS) is proud to offer this report of the 5th Conference on Military Medicine, "A Challenge to Readiness: Maintaining Currency in Military Medical Education." These Proceedings serve as a record of the Service's Surgeons General nominees' contributions toward predicting the changes that will affect military medical practice over the next twenty to thirty years and of their recommendations rewarding the changes needed in military health care education to prepare today's students to practice in the future. The Uniformed Services University, as the nation's pre-eminent center of military medical education, is committed to ensure that its students are prepared to practice in our rapidly changing world. To this end, Dr. Val Hemming, Dean of the School of Medicine (SOM), directed that this conference be conducted and its proceedings be published. The specific focus of this conference was to identify the anticipated changes in military health care practice and the new educational objectives needed to properly prepare military health care practitioners for the next twenty to thirty years.

I AM HONORED to be with you today as Chairman of the Pediatric Section of the AMA, and have selected for discussion some of the missions of the physician in our present society. There are some who affirm that medicine is too scientific, but it is encouraging to note that curriculum trends point to a revival in the care of the patient by a scientific physician-humanitarian. 1 It is encouraging also that more emphasis is placed on the art of medicine without ignoring the application of science to medicine. The American Pediatric Society has served notice, according to the address of a recent past-president, that a portion of the program in 1961 would be devoted to pediatric education. This meeting has been recently concluded. I hope progress has been made. The subject is appropriate, since members of the American Pediatric Society dominate at least three-fourths of all the boards and

This report details the outcome of the 1st Skin Microbiota Workshop, Boulder, CO, held on October 15th-16th 2012. The workshop was arranged to bring Department of Defense personnel together with experts in microbial ecology, human skin physiology and anatomy, and computational techniques for interrogating the microbiome to define research frontiers at the intersection of these important areas. The workshop outlined a series of questions and created several working groups to address those questions, specifically to promote interdisciplinary activity and potential future collaboration. The US Army provided generous grant support and the meeting was organized and hosted by the University of Colorado at Boulder. A primary forward vision of the meeting was the importance of understanding skin microbial communities to improve the health and stealth of US Army warfighters., U.S. Army Research Laboratory, United States. Army Research Office (grant number W911NF-12-1-0513)