The objective of this investigation was to develop a vapor pressure (VP) acquisition system and methodology for performing temperature-dependent VP measurements and predicting the enthalpy of vaporization (ΔH_vap) of volatile organic compounds, i.e. VOCs. High quality VP data were acquired for acetone, ethanol, and toluene. VP data were also obtained for water, which served as the system calibration standard. The empirical VP data were in excellent agreement with its refe...

Physical Chemistry 

Electric power is a key driver of economic growth and prosperity. But access to electricity still remains a distant dream for majority of the population living in the remote and arid areas of developing countries mostly sub-Saharan Africa. With the growing demand for safe and reliable energy, solar as a source of energy remains the least utilized energy source in the Kenyan economy and yet one of the safest forms of energy. Solar photovoltaic (PV) systems have shown their potential in rural elec...

Electric Engineering 

This research focused on the extent of implementation of the features of National Service Training Program in terms of program vision and mission, services and activities offered, budget allocation, supplies and materials used, personnel and faculty involved, and seminars and training conducted for facilitators and implementers. Likewise, it looked on the extent of attainment of the objectives of the program as perceived by the administrators and facilitators of the program and finally the level...

Education 

Background: Early initiation of complementary feeding which was widely documented in many countries exposed infants to increased risk of morbidity and mortality. The purpose of this study was to assess the prevalence of early initiation of complementary feeding and associated factors in Bishoftu Town, Oromia, Ethiopia. Methods: An institutional based cross-sectional study design was conducted from January-February 2015 among 422 mothers of infant aged less than 6 months selected from four public...

Public Health 

Background: Body mass index (BMI) is a squared-height power function. Nevertheless, some studies show a significant exponential weight-height correlation. Objectives: To demonstrate that the weight-height relationship from 2 to 20 years of age is better expressed by an exponential function. Design: 5th, 50th and 85th percentile weight-height curves according CDC 2000 Growth Charts. A theoretical curve was created with the data on the 50th percentiles of weight and height for each age, equivalent...

Nutrition  Pediatrics 

Background: Blood storage particularly for transfusion is a common practice among Medical Laboratory Scientists. However, haemolysis of blood during storage is inevitable but the degree of occurrence is largely dependent on the mode of storage, which has not been fully investigated. Aim: The aim of this study was to measure and compare the extent of haemolysis in blood for transfusion stored in domestic and medical laboratory refrigerators. Methods: Haemolysis was compared from day one up to day...

Hematology  Immunology 

Most donor blood units for transfusion purposes are stored in Citrate Phosphate Dextrose Adenine-1 (CPDA-1) at blood-banks until used. Despite improvements made in blood storage attempts, CPDA-1 may still cause morphological and degenerative changes in red blood cells (RBCs) if storage is prolonged. The purpose of the study was to assess the viability of RBCs through characteristic changes resulting from prolonged storage in CPDA-1. A total of fifteen whole blood stored in CPDA-1 were analyzed f...

Hematology 

This work assessed modes of irrigation on vegetable production in fifty (50) vegetable gardens from ten (10) sampled areas in the Accra Metropolis. Irrigation water sources include: pipe, segment, gutter, dug-well, dam, river, and drains. Demographic survey, nature of the surrounding of the water bodies, physico-chemical and microbiological analysis of irrigation waters were carried out and contrasted with standard values. The analysis of the parameters of various water samples was within the ac...

Environmental Sciences 

Through reexamining the intention of duality in classical physics, we will develop the electromagnetic field equations (EFEs) into a new dualized form. In the process, we will see 1) the dual symmetry does not represent the counterpart of electricity and magnetism, but a technique of expression, that is, any dualized equation will be equivalent to its originality. This symmetry can naturally lead to a conserved quantity (called the dual spin), and meanwhile is responsible for charge quantization...

Theoretical Physics 

Nigeria is currently undergoing what demographers describe as a “youth bulge”, which requires significant attention for sound policies in the area of health, education, economy and good governance. Although development agencies have utilised a multitude of tactics to promote youth and children issues in the country, the level of media and public attention is still insufficient. Children and youth advocates confront significant challenges in attracting sustainable public, policy and media attenti...

Journalism and Communication