Abstract: Coal pyrolysis and gasification are promising options for the future of Botswana as the country has large coal reserves with severe limitations in terms of export options. Coal characterization facilities will be required in order to harness its full potential and methods such as proximate, ultimate and chemical structure analysis (FTIR, Raman spectroscopy and X-ray diffraction techniques) were investigated. The paper presents a brief history of pyrolysis and gasification, typical ...
Abstract: Understanding eastern African paleoclimate is critical for contextualizing early human evolution, adaptation, and dispersal, yet Pleistocene climate of this region and its governing mechanisms remain poorly understood due to the lack of long, orbitally-resolved, terrestrial paleoclimate records. Here we present leaf wax hydrogen isotope records of rainfall from paleolake sediment cores from key time windows that resolve long-term trends, variations, and high-latitude effects on tro...
Abstract: Anopheles gambiae mosquitoes are not known to harbor endosymbiotic bacteria. Here we show, using nucleic acid-based methods, that 16S rRNA gene sequences specific to a recently described mosquito midgut bacterium, Thorsellia anophelis, is predominant in the midgut of adult An. gambiae s.l. mosquitoes captured in residences in central Kenya, and also occurs in the aquatic rice paddy environment nearby. PCR consistently detected T. anophelis in the surface microlayer of rice paddies,...
Abstract: Concentrations and distribution of cadmium, chromium, copper, iron, lead, manganese and zinc in mosquito larval habitats in urban Kisumu and Malindi, Kenya and their effect on the presence of Anopheles gambiae, Aedes aegypti, Culex quinquefasciatus and Anopheles funestus larvae were investigated. Manganese and iron were the most prevalent heavy metals in water of larval habitats in urban Kisumu and Malindi, respectively. Iron was the most prevalent heavy metal in bottom sediments i...
Bush meat (Grass cutter) is one of the best natural meats with lots of nutritional advantages. The increase in consumption of bush meat serves as alternative which bridges the gap of the inadequacy of animal protein and other nutrition. The grass cutter (Thryonomys swinderianus) meat samples used in this research were collected from Emure Owo market, in Owo local government of Ondo state, Nigeria. The hairy skin of the fresh lifeless grass cutter was removed using hot water. The grass cutter ...
Bush meat (Grass cutter) is one of the best natural meats with lots of nutritional advantages. The increase in consumption of bush meat serves as alternative which bridges the gap of the inadequacy of animal protein and other nutrition. The grass cutter (Thryonomys swinderianus) meat samples used in this research were collected from Emure Owo market, in Owo local government of Ondo state, Nigeria. The hairy skin of the fresh lifeless grass cutter was removed using hot water. The grass cutter ...
Abstract The objective of this present work is to introduce a new method of solving quadratic equations different from the existing methods. In this paper, we explicitly explain the new method and carefully discussed the conditions necessary for using this new approach. Finally, we apply our new approach to solve some questions and compare the result with the existing methods and results coincide. KEYWORD: The following are the keywords to be discuss namely; Affected quadratic equation,Absolu...
Traditional file management systems and manual processes have presented a number of difficulties and restrictions, such as difficult administration, inadequate security, and restricted data sharing options for users and organizations. After overcoming these obstacles, file management systems have typically moved to the more advanced models of today, which offer better features and benefits, particularly in critical areas where their applications cannot be compromised. The primary goal of this...
Abstract Parasitic infections such as lymphatic filariasis (elephantiasis) solely result from the infestation of a slender and thread-like worm. This condition precipitates swelling, often accompanied by skin alterations, potentially leading to substantial disability and disfigurement. Recent advancements in preventive measures for lymphatic filariasis encompass mass drug administration (MDA) involving antifilarial drugs. To that effect, this investigation employs an experimental and theoreti...
Abstract Parasitic infections such as lymphatic filariasis (elephantiasis) solely result from the infestation of a slender and thread-like worm. This condition precipitates swelling, often accompanied by skin alterations, potentially leading to substantial disability and disfigurement. Recent advancements in preventive measures for lymphatic filariasis encompass mass drug administration (MDA) involving antifilarial drugs. To that effect, this investigation employs an experimental and theoret...
The wrong and excessive use of antibiotics in the poultry industry poses a threat to public health due to the release of antibiotic-resistant bacteria into the environment and its impact on consumers of poultry products. This research aimed to investigate the occurrence and patterns of antibiotic resistance found in Klebsiella species isolated from poultry faeces in Owo metropolis. Fecal samples were collected from healthy broilers in three privately-owned poultry farms in Owo, using sterile ...
Background and Objectives: Abuse and indiscriminate use of antibiotics, prolong hospital admission, travel history, organ transplants, immunocompromised conditions and age are parts of the factors that contribute to development of antibiotic resistance and intestinal carriage of Extended Spectrum Beta-Lactamases (ESBL) Enterobacteriaceae. These bacteria affect the course and outcome of an infection and continue to pose a challenge to infection management worldwide. This study was carried out ...
Abstract Mathematics is a key subject which students cannot avoid if they have to lead a bright future. Despite the introduction and implementation of different teaching methods and strategies suggested by researchers the achievement of students in mathematics at school level has persistently been poor, hence the need to explore the influence of different instructional approaches. The purpose of this study was to find out the extent to which instructional practices influenced students’ ach...
Escherichia coli which synthesize extended spectrum beta-lactamases (ESBL) have been implicated in severe human diseases. There is substantial evidence that cattle faeces have a role in developing and spread of multidrug-resistant pathogens, raising public health concerns. The study is aimed at detecting ESBL-producing E. coli associated with cattle faeces within Owo metropolis. Freshly passed faecal samples were taken aseptically from 9 apparently healthy cattle that were about to be sl...
Abstract The study focuses on the potential of naturally occurring dyes as photosensitizers in dye-sensitized solar cells (DSSCs). DSSCs are a type of solar cell that uses chemicals called photosensitizers to absorb energy from visible light and produce excited electrons. In 1991, Grätzel and his co-workers developed DSSCs, which have gained attention in recent years. However, the ruthenium-based compounds used as photosensitizers are expensive, and research suggests that organic dyes ...