Physical Sciences and Engineering

Introducción: La sospecha de cáncer de próstata se da por alguna alteración en la consistencia de la próstata, al realizar el tacto rectal o por elevación de las cifras del antígeno prostático específico (APE), o ambas, ante lo cual deberá realizarse una biopsia transrectal guiada por ultrasonido (BTRUS)de próstata, con el fin de enviar las muestras a patología y recibir un reporte histopatológico que clasifique a cada uno de los pacientes en los diferentes grados de riesgo, de acuerdo a la escala de Gleason y por consiguiente iniciar un tratamiento de manera oportuna.

Introducción: El cáncer de próstata (CaP) es la proliferación descontrolada de las células epiteliales (secretoras luminales, células basales o células neuroendocrinas) de la glándula prostática, maligno y con pronóstico heterogéneo relacionado principalmente a la edad, grado grupo, nivel de Antígeno prostático especifico (APE), tipo de cáncer, duplicación del APE, hallazgos quirúrgicos, entre otros.

Sinus bradycardia is established as a heart rate less than 60 bpm. This can be normal in young, healthy adults or in patients taking blocking agents. It is considered pathological if it produces a decrease in cardiac output and presents symptoms. The conduction abnormality can occur at the level of the sinus node, atrioventricular node tissue, or the specialized His-Purkinje conduction system.

This article was developed with the purpose of presenting a methodological alternative for the teaching-learning process of indefinite integrals using Maple mathematical assistant at the 1st year of Mathematics Teaching course at ISCED-Cabinda, in order to minimize the difficulties found at this level such as students’ lack of motivation in relation to the mathematical content taught in the traditional classroom, the failure to achieve satisfactory results intended in the teaching of indefinite integrals, incomprehension of the concept of indefinite integrals, the lack of mention about the

In urban and peri-urban areas, wastewater and sewage sludge are used without prior treatment to fertilise vegetable soils. To this end, sewage sludge treated with market garden waste was tested to evaluate the morphological performance and yield of tomatoes. Thus, the composts based on faecal sludge and market garden waste are T0, T1 and T2 (for respectively T0: composted faecal sludge alone, T1: compost with 2/3 faecal sludge and 1/3 market garden waste and T2: compost with ½ sewage sludge and ½ vegetable waste).

Disability is a prevalent phenomenon. Disability issues in Bangladesh remain at the backside of the development agenda for a variety of reasons. People in general, view incapacity as a curse and a cause of embarrassment to the family. These forget bars Person with disabilities (PWDs) from participating in ordinary economic, social and political things to do in their families, communities, vital offerings and education, etc. The present study documented economic and social factors that impeded their access to health care, education, leisure activities, future life chances etc.

Background: The Insurance sector is ladened with the sole responsibility of risk bearing and management. This is very important to any economy especially the developing economies like Nigeria where there is absence or little presence of enabling environment for businesses, low life-expectancy and wavering government policies. It is also important for the Insurance sector to stay alive to perform the duty of rescuing the economy from peril. For the sake of sustainability, Insurance companies must decide on what processes to focus on to drive profitability.

Subject description: Groundnuts (Arachis hypogaea L.) occupy an important place in traditional farming systems. However, yields in dry African savannas are less than one ton per hectare in extensive cultivation. These low yields are due, among other things, to precarious rainfall conditions, to the low distribution of improved varieties, but also to the non-development of local plant potential. In fact, compared to local cultivars, very few studies have been made.

The study aimed to investigate the impact of blended learning on students’ speaking skills of EFL learners through debate and extempore technique. The study used quasi-experiment which consisted of pre-observation, intervention and post observation. The total of 20 girls and 22 boys studying in grade 6 has participated in the study. The control group received traditional methods of instructions in English session whereas the experimental group received blended learning in special classroom. Both the groups were tested for their speaking skills before and after the intervention.

This article presents the results obtained in the implementation of computer tools in the teaching of trigonometry in 11th grade at Liceu in Cabinda. Trigonometry is a branch of mathematics used to calculate the Earth's diameter, river widths, distances to make maps, pyramid measurements, algebraic calculations, among others.