Palynostratigraphy of the Triassic-Jurassic of the Silves Group, Lusitanian Basin, Portugal [Resumo]

ABSTRACT: We studied the miospore assemblage from an Upper Triassic to Lower Jurassic succession of the Silves Group near Coimbra, Portugal. The latter consists of, from base to top, the Conraria, Penela, Castelo Viegas, and the Pereiros formations. The palynological assemblages allowed establishing an informal palynozonation and providing new biostratigraphic that helped constrain the age attribution to the Silves Group formations.N/

Avaliação de genótipos de mamoeiro (Carica papaya L.) para resistência à Phytophthora palmivora Butler.

A fruticultura é um dos segmentos de maior crescimento na agricultura e o mamoeiro (Carica papaya L.) aparece como um dos destaques, principalmente após a recente abertura do mercado norte- americano para a exportação de mamão produzido no país. O mamoeiro pode ser considerado originário do noroeste da América do Sul e América Central, com as principais áreas comerciais localizadas entre as latitudes 23oN e S, apesar de serem encontrados plantios em latitudes de até 32oN e S

Leiomioma da Uretra Feminina - Revisão da Literatura a Propósito de Caso Clínico

Oleiomioma da uretra é uma patologia rara, estando descritos cerca de uma centena de casos na literatura. São tumores benignos, constituídos por músculo liso e surgem mais frequentemente na idade fértil.Otratamento é cirúrgico com excisão da massa, existindo contudo possibilidade de recidiva local. Apresenta-seumcaso clínico de leiomioma da uretra e realizou-se revisão da literatura

Avaliação da deficiência hídrica em genótipos de mamoeiro.

O crescimento e a produtividade do mamoeiro são afetados por inúmeros fatores, com destaque para o estresse hídrico, que pode reduzir a produtividade do mamoeiro em até 22%. Os estudos de caracterização genotípica associados a componentes fisiológicos ainda são restritos, em decorrência da complexidade das respostas das plantas frequentemente submetidas a estresses ambientais

Computational fluid dynamics vs. inverse dynamics methods to determine passive drag in two breaststroke glide positions

Computational fluid dynamics (CFD) plays an important role to quantify, understand and "observe" the water movements around the human body and its effects on drag (D). We aimed to investigate the flow effects around the swimmer and to compare the drag and drag coefficient (CD) values obtained from experiments (using cable velocimetry in a swimming pool) with those of CFD simulations for the two ventral gliding positions assumed during the breaststroke underwater cycle (with shoulders flexed and upper limbs extended above the head-GP1; with shoulders in neutral position and upper limbs extended along the trunk-GP2). Six well-trained breaststroke male swimmers (with reasonable homogeneity of body characteristics) participated in the experimental tests; afterwards a 3D swimmer model was created to fit within the limits of the sample body size profile. The standard k-ε turbulent model was used to simulate the fluid flow around the swimmer model. Velocity ranged from 1.30 to 1.70 m/s for GP1 and 1.10 to 1.50 m/s for GP2. Values found for GP1 and GP2 were lower for CFD than experimental ones. Nevertheless, both CFD and experimental drag/drag coefficient values displayed a tendency to jointly increase/decrease with velocity, except for GP2 CD where CFD and experimental values display opposite tendencies. Results suggest that CFD values obtained by single model approaches should be considered with caution due to small body shape and dimension differences to real swimmers. For better accuracy of CFD studies, realistic individual 3D models of swimmers are required, and specific kinematics respected.info:eu-repo/semantics/publishedVersio

Avaliação de sintomas de Phytophthora SSP em linhagens de mamoeiro.

O mamoeiro cultivado comercialmente (Carica papaya L.) insere-se na classe Dicotyledoneae, subclasse Archichlamydeae, ordem Violales, subordem Caricineae, família Caricaceae e gênero Carica (MANICA, 1982). Seu centro de origem é, muito provavelmente, o Noroeste da América do Sul - vertente oriental dos Andes, ou mais precisamente, a Bacia Amazônica Superior - onde a diversidade genética é máxima, o que caracteriza o mamoeiro como uma planta tipicamente tropical (TRINDADE, 2000)

Características comerciais, armazenamento e qualidade pós colheita de cultivares de alho infectadas e livres de vírus.

O presente estudo teve como objetivo avaliar as características comerciais, a qualidade dos bulbos e a capacidade de armazenamento em condição ambiente de alho infectado e livre de vírus.bitstream/item/220454/1/BPD-216-19-jan-2021.pd

ANALYSIS OF THE BACKPACK LOADING EFECTS ON THE HUMAN GAIT

Gait is a simple activity of daily life and one of the main abilities of the human being. Often during leisure, labour and sports activities, loads are carried over (e.g. backpack) during gait. These circumstantial loads can generate instability and increase biomechanical stress over the human tissues and systems, especially on the locomotor, balance and postural regulation systems. According to Wearing (2006), subjects that carry a transitory or intermittent load will be able to find relatively efficient solutions to compensate its effects. These are dependent upon the walking distance and of the load characteristics - size, weight and location relatively to the body (Hsiang, 2002).Thus, these solutions should become a concerning factor (Koh, 2009) and a topic of scientific research, particularly in what concerns the inventory of its biomechanical effects and the possible strategies to be developed in order to minimize its effects. The aim of the present study was to analyze the effects of an occasional dorso-lombar load during the gait through the use of a backpack