NCT02501915 (https://clinicaltrials.gov/ct2/show/NCT025019150).

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RESUMO Objetivo: Frente ao quadro pandêmico vivido em 2020 no mundo, este trabalho de revisão tem por objetivo, formar e informar através da literatura o panorama geral do quadro de COVID-19 Métodos: Para tal, foram selecionados aspectos de caracterização, etiologia, patogenia, quadro clínico, laboratorial, de imagem e principais medidas tomadas para realização do combate a infecção do COVID019. Revisão Bibliográfica: Sabendo que o vírus SARS-CoV-2 causador do quadro patológico, a revisão focou nos aspectos da gestante, passando pelo nascituro, crianças, adultos e idosos com apanhado geral das informações pertinentes a cada faixa etária. A descrição de quadros clínicos e a mimetização com demais quadros apresentados por afecções de vias respiratórias superiores e inferiores e demais doenças sazoanais, junto com seu diagnostico laboratorial com alterações e anormalidades, exames de imagens e tomadas de decisões a partir dos resultados. Apresentado ainda, processo de tratamento, vacinas e investigações cientificas. Para finalizar os dados encontrados, ações de promoção de saúde capazes de melhorar a qualidade de vida de toda população. Conclusão: O trabalho demonstrou extrema importância devido a sua abordagem ampla da pandemia por coronavírus e como identificála, trazendo uma forma simples e descomplicada, levando conhecimento cientifico a população e informações verídicas e de qualidade.

Introduction: Maintaining body temperature by the human body occurs through the control of the autonomic nervous

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The bending stiffeners discussed in this paper are ancillary structural components installed on flexible lines at their connections with floating units in offshore oil production systems. The configuration of these accessories must provide the installation with a gradual variation of the bending stiffness near the line’s attaching point, smoothing the curvature and avoiding that the structural bending limit of the flexible line be exceeded, and thus reducing the stress field of the compliant structure therein fixed. Generally modeled as having a simple conical shape, in practice, however, bending stiffeners geometries are not so simple. Indeed, units consisting of four different sections are common. This paper presents a parametric structural analysis of these components by means of an analytically formulated model, which results in a second order non-linear differential equation with variable coefficients. The ensuing mathematical boundary value problem is solved numerically with a code developed in Matlab®, using an internal program based on a collocation method — as opposed to a shooting method. Bending stiffener design and normative issues are also briefly discussed. Finally, solutions obtained previously both analytically and by finite element discretizations are used to validate the analytical solutions obtained herein.

While some studies have found strong correlations between peak tibial accelerations (TAs) and early stance ground reaction forces (GRFs) during running, others have reported inconsistent results. One potential explanation for this is the lack of a standard orientation for the sensors used to collect TAs. Therefore, our aim was to test the effects of an established sensor reorientation method on peak Tas and their correlations with GRFs. Twenty-eight runners had TA and GRF data collected while they ran at a self-selected speed on an instrumented treadmill. Tibial accelerations were reoriented to a body-fixed frame using a simple calibration trial involving quiet standing and kicking. The results showed significant differences between raw and reoriented peak TAs (p < 0.01) for all directions except for the posterior (p = 0.48). The medial and lateral peaks were higher (+0.9–1.3 g), while the vertical and anterior were lower (−0.5–1.6 g) for reoriented vs. raw accelerations. Correlations with GRF measures were generally higher for reoriented TAs, although these differences were fairly small (Δr2 = 0.04–0.07) except for lateral peaks (Δr2 = 0.18). While contingent on the position of the IMU on the tibia used in our study, our results first showed systematic differences between reoriented and raw peak accelerations. However, we did not find major improvements in correlations with GRF measures for the reorientation method. This method may still hold promise for further investigation and development, given that consistent increases in correlations were found.

Scale build up is a challenge faced by the O&G Industry. During production, it may cause clogging of pipes and lead to well interventions. An alternative solution increasingly studied over the years is the magnetic treatment of the fluids. This study describes the development of magnetic anti-scale accessories for deployment in offshore wells to figth scaling. Two accessories have been designed and manufactured according to the criterias defined by O&G operator. Qualification tests (vibration, shock, and hydrostatic tests) and magnetic measurements have been conducted to assess the accessories robustness and both were approved for field test. One accessory has already been successfully installed in an offshore field of Brazil and a comprehensive installation program of more accessories for the next years is being designed within PETROBRAS to better evaluate the technology efficiency.