Past Issue

The mortars produced currently have adhesion and mechanical resistance and physical properties often unsatisfactory to cater for projects with large loads and environmental conditions more severe. This work aims to study the mechanical properties and durability of coating mortars produced with excessive lime or cement. Tests were carried out air incorporated content; resistance to compression, flexion traction and pull off; elasticity modulus; water absorption; porosity, fissurability e digital microscope images. It was CP-II-E-32 cement, CH-I lime and quartz natural sand.

The objective was to compare the morphological adaptations and the capacity to generate force promoted by the tensional versus metabolic resistance exercise. The sample consisted of 28 men, between 18 and 45 years old, resistance exercise practitioners divided into two groups. Anthropometric evaluation and maximal strength test were performed before and at the end of the training period. The hypertrophic responses were intensified by the metabolic method and the ability to generate force by the tension-base method.

This work presents information about the digestive tract contents of the green turtles (Chelonia mydas) on the southern coast of Pernambuco, Northeast Brazil. Between November 2016 and October 2018, the gastrointestinal tract contents were collected from 44 stranded dead individuals. The diet consisted mainly of red algae (65.90%), especially the species Pterocladiella beachiae, Gelidium lineare (52.72%) and Gelidiella acerosa (47.72%).

Globally, breast cancer incidence is on the rise, especially in developing countries and it is the most diagnosed cancer among women in Kenya. For the prevention and treatment, knowledge on early detection and risk factors is very important, however this has not been assessed among women of reproductive age attending Longisa County Referral Hospital Bomet County, Kenya. The study adopted a cross-sectional hospital based design to assess the knowledge on early detection and risk factors to breast cancer among 194 women of reproductive age (15-49 years).

Diseases affecting the female reproductive system are becoming more prevalent worldwide, among which are the bacterial vaginosis caused by the bacterium Gardnerella vaginalis and cervical cancer caused by the Human Papilloma Virus (HPV). may corroborate for significant pathological consequences.

O câncer de pele é causado por exposição intensa aos raios solares, e pelo fato do Brasil ser um país de clima tropical, existem fatores que auxiliam na exposição solar cotidiana da população (trabalho ao ar livre e a beleza associado ao bronzeamento). A família Euphorbiaceae possui metabólitos secundários, como, os taninos e flavanóides, considerados antioxidantes e associados a Fator de Proteção Solar. Nessa família, destaca-se Cnidoscolus quercifoliusPohl(Favela), considerada resistente à seca e a forte irradiação solar.

Objetivo: Avaliar a citotoxicidade do extrato hexano de Psidium guineense em células sanguíneas humanas (eritrócitos) para que possa se determinar a toxicidade teórica desta planta. Métodos: Para a realização dos estudos de atividade citotóxica foram prepradas suspensões sanguíneas com sangue humano A, B e O, que foram misturadas a diferentes concetrações do extrato hexânico por 60 minutos e a hemólise quantificada por espectrofotometria em comprimento de onda de 540 nm. Resultados: O extrato hexano de P.

The objective of the present study was to assess the selectivity of five herbicides and their potential pre-emergent control over weeds in the forage palm crops. A completely randomized design was used to evaluate selectivity in triple factorial (2 x 5 x 7) considering varieties, herbicides and seasons assessed, respectively. In turn, the experiment to evaluate weed control was conducted with a completely randomized design with five treatments and one control with eight replications, yielding a total of 48 units.

Considering the growing concern about environmental protection and the large-scaletyre manufacturing industry, the problem of improperly disposing of tyre waste has called attention. This paper aims to identify the waste tyre reverse logistics scenarioin Northern Brazil based on tyre reports drawn up by the Brazilian Institute of Environment and Natural Resources (IBAMA). The methodological procedure of this study consists of documentary research, where the IBAMA tyre reports from 2011 to 2017 were analysed to obtain data, using the descriptive analysis technique.

This study aimed to evaluate the efficiency of increased nitrogen via supplementation or fertilization in Marandu-grass pastures on the productive performance of Nellore heifers. The experiment was conducted in an area dominated by Brachiaria brizantha ‘Marandu’. Animals were randomly distributed in 16 paddocks of 0.6 ha under continuous stocking in a completely randomized design, with four repetitions and a 2 × 2 factorial design, with two doses of nitrogen and two types of supplements.