Browsing Journal Articles (PAS) by Title
Now showing items 219-238 of 258
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A Review of Insecticidal Plant Extractsand Compoundsfor Stored Maize Protection
(IOSR Journal of Applied Chemistry (IOSR-JAC) Volume 14, Issue 10 Ser. I (October 2021), PP 23-37, 2021)Insect pests cause significant losses to maize grains both in the fieldsand in storage. Maize weevil (Sitophilus zeamais) and larger grain borer (Prostephanus truncatus) are among the most destructive pests of maize in ... -
A review on carbon nanotube/polymer composites for organic solar cells
(John Wiley & Sons, Ltd., 2014-04-13)Carbon nanotubes (CNTs) have unique properties, such as their electrical conductivity, that enable them to be combined with conducting polymers to form composites for use in organic solar cells (OSCs). It is envisaged that ... -
A Review Pesticidal Activity of Essential Oils against Sitophilus oryzae, Sitophilus granaries and Sitophilus Zeamais
(IOSR Journals, 2022-04)Infestation of cereals in storage by Sitophilus oryzae, Sitophilus granaries and Sitophilus Zeamais lead to great food loses in Sub-Saharan Africa. Some of the synthetic pesticides which are available are non-biodegradable ... -
THE ROLE ON GENDER POLICY IN „SCALING UP‟ GIRLS „ACCESS TO SECONDARY SCHOOL EDUCATION IN KENYA
(International Journal of Disaster Management and Risk Reduction, 2013)The Kenya government‟s commitment to increase girls‟ participation, retention, transition and completion at secondary school level is well documented in official government documents. It is also part of the Governments ... -
Rutile Concentration by Reduction of Titanium Ore - Laterite Mixture Using Biomass
(2022-02)Rutile is a mineral which is used in making paints, ointments, tooth paste, sunscreens, just to mention a few products. Titanium metal makes alloys with less density and resistance to corrosion, which are used in making ... -
Semi-Parametric Spatial Joint Modeling of HIV and HSV-2 among Women in Kenya
(2015-08)Several diseases have common risk factors. The joint modeling of disease outcomes within a spatial statistical context may provide more insight on the interaction of diseases both at individual and at regional level. Spatial ... -
Sexuality Education:Promoting safer sexual behaviour among university students in Kenya
(Department of Education Foundations, Kenyatta University, 2016)Sex education has become a major concern in our universities that needs redress. Regardless of this, only few studies have been done on it. This paper seeks to review various studies done by researchers on safer sexual ... -
Social and physical factors influencing malaria incidence among farmers in Bugesera District, Rwanda
(2020-07)Background: In Rwanda, farmers experience health problems due to the consistency increase in mosquitoes which bring about malaria incidence. We researched to realize if there is malaria occurrence among farmers and to ... -
Socio-economic status, knowledge, awareness and attitudes of the Swahili community in relation to dietary habits, obesity and lifestyle diseases
(AJOL, 2017)Chronic diseases of lifestyle are increasing in global prevalence and they threaten developing nations’ ability to improve the health of their populations. Previously, lifestyle diseases were thought to be diseases of the ... -
Some Antibacterial and Antifungal Compounds from Root Bark of Rhus natalensis
(Scientific & Academic Publishing, 2019-09)Phytochemical studies on Rhus natalensis root bark collected from Iten, Kenya led to isolation and characterization of five compounds namely epicatechin (1), 3-sitosterol (2), 3-sitosterol glucoside (3),stigmasterol (4) ... -
Spatial modeling of HIV and HSV-2 among women in Kenya with spatially varying coefficients
(2016)Background: Disease mapping has become popular in the field of statistics as a method to explain the spatial distribution of disease outcomes and as a tool to help design targeted intervention strategies. Most of these ... -
Species composition and distribution of mayflies (Ephemeroptera) in relation to land use systems along the Thika River, Kenya
(Taylor & Francis Group, 2021-02-26)Mayflies (order Ephemeroptera) are widely distributed and commonly used in biological assessment of water quality because of their sensitivity. Their application as bio-indicators in tropical streams and rivers, however, ... -
Spectrophotometric Determination of Traces of Lead (II) in Spinach Samples Marketed in Chuka, Kenya
(2015-11-15)Three hydroxytriazenes were synthesized and studied for the spectrophotometric determination of Lead (II) in spinach samples. Lead (II) reacts with hydroxytriazenes to form a 1:2 yellow complex, having a sensitive absorption ... -
Spiders (Arachnida: Araneae) from black cotton soil habitats of a highland savanna biome in Laikipia, central Kenya
(2004)Spiders were sampled at Mpala Research Centre, Laikipia, Kenya using pitfall trapping and sweep netting. Sampling was conducted from May 2001 to July 2002. A total of 10,487 individuals from 132 species belonging to 30 ... -
Stored Grains Protection Activity of Ocimum Suave Extracts and Compounds on Larger Grain Borer
(IOSR Journal of Biotechnology and Biochemistry (IOSR-JBB) Volume 8, Issue 4 (Jul. – Aug. 2022), PP 05-10, 2022)Post-harvest pests cause serious losses to agricultural products in Africa. The pests consist mostly of beetles or moths and infest the grains at the crop stage or during the storage. Larger grain borer, Prostephanus truncatus ... -
Strain variation in vitamin A (retinol) status of streptozotocin-induced diabetic rats.
(International Journal for Vitamin and Nutrition Research, 1996)Decreased plasma concentrations of vitamin A (retinol) and retinol-binding protein have been previously identified in human subjects with type I diabetes mellitus. The present study was undertaken to investigate the effects ... -
Streptozotocin-induced diabetes in rats is associated with impaired metabolic availability of vitamin A (retinol).
(The British Journal of Nutrition, 1996-04)Using streptozotocin-induced diabetic Wistar rats, studies were carried out to examine the metabolic availability of vitamin A in the plasma, liver and the retina of the eye. Control and diabetic rats were fed ad lib. on ... -
Streptozotocin-induced diabetes lowers retinol-binding protein and transthyretin concentrations in rats.
(The British Journal of Nutrition, 1996-12)Retinol-binding protein (RBP) and transthyretin (TTR) in the plasma, liver and kidney, retinol in plasma, and total vitamin A in the liver were measured in rats 6 weeks after diabetes mellitus had been induced by streptozotocin ... -
Structural and optical properties of novel CdSe nanoparticles produced via a facile synthetic route: Studies on the effects of cadmium sources
(2019-04)We report on the successful synthesis of CdSe nanoparticles (NPs) via a facile aqueous approach. Investigation on the effects of various cadmium sources in the precursor solution on the CdSe NPs is discussed. The structural ... -
Structural, optical and luminescence properties of CdTe quantum dots: Investigation on the effect of capping ligand ratio
(IOP Publishing Ltd, 2019-03)Well-crystallized cadmium telluride quantum dots (CdTe QDs) were fabricated by a simple wet chemical process under open air condition at a growth temperature of 100 °C. Various amounts of the capping ligands were used in ...