Journal Articles: Recent submissions
Now showing items 1101-1120 of 4004
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Feeding Practices and Nutritional Status of Children 0 - 23 Months Born to Adolescents in Maseno Division, Kisumu County, Kenya.
(ECronicon, 2020)First-time adolescent mothers deal with challenges that place extra demands not only on their stage of adolescent development but also on their ability to adapt to their new role as a parent. Adolescent and childhood is ... -
Breakfast Missing Pattern of Pre-Adolescent Primary School Children Kisumu County, Kenya.
(EC NUTRITION, 2020)Breakfast is an important meal of a day, especially to children and pre-adolescents. However, pre- adolescents seem to have the highest prevalence of missing breakfast despite its importance to their cognitive performance, ... -
Nexus between women voters’ radio exposure and grassroots electoral participation under the new devolved political dispensation in Kenya
(Некоммерческое партнерство Национальная ассоциация масс-медиа исследователей, 2020)This article examines the nexus between women voters’ radio exposure and participation in the 2013 Kenyan general election in Kakamega County located in the western part of the country. This research grounded in political ... -
Determination of Cost Efficiency Level of Production among Sugarcane Farmers in Nyanza Region, Kenya
(Inderscience Publishers, 2020)In agricultural production, labour, capital and land are critical ingredients in increasing output levels. In sugarcane and food crops production, farmers always experience competing requirements on production inputs. In ... -
Effect of Government Infrastructure Expenditure on Poverty in the East African Community
(Noble International Journal of Economics and Financial Research, 2021)The East African Community (EAC) level of economic integration is among the most advanced Regional Economic Communities (RECs) in Africa. With advancement in integration, efforts are being made by the member countries ... -
Distribution of Biomphalaria Snails in Associated Vegetations and Schistosome Infection Prevalence Along the Shores of Lake Victoria in Mbita, Kenya: A Cross-Sectional Study
(East African Health Research Commission, 2019)Background: Schistosomiasis due to Schistosoma mansoni remains a major public health problem and cause of morbidity and mortality in sub-Saharan Africa despite the implementation of control programmes. More than 6 million ... -
Diagnostic dose determination and efficacy of chlorfenapyr and clothianidin insecticides against Anopheles malaria vector populations of western Kenya
(BioMed Central, 2019)Background: Malaria vector control is dependent on chemical insecticides applied to walls by indoor residual spraying or on long-lasting insecticidal nets. The emergence and spread of insecticide resistance in major malaria ... -
Factors Associated with Substance Abuse by Students in Medical Training Colleges in South Nyanza Region, Kenya
(British Journal of Medical Health Research, 2020)Substance abuse is a worldwide public health challenge with college youth being among those affected. An estimated 10-15 % of students in medical training institutions risk substance abuse in their lifetime as they are ... -
Novel biomarkers with promising benefits for diagnosis of cervical neoplasia: a systematic review
(BioMed Central, 2020)Background: Cervical cancer screening is slowly transitioning from Pappanicolaou cytologic screening to primary Visual Inspection with Acetic Acid (VIA) or HPV testing as an effort to enhance early detection and ... -
Phenotypic and Genotypic Characteristics of Uropathogenic Escherichia coli Isolates from Kenya
(Mary Ann Liebert, Inc., publishers, 2021)Introduction: Uropathogenic Escherichia coli (UPECs) are a significant cause of urinary tract infections (UTIs). In Kenya, UTIs are typically treated with b-lactam antibiotics without antibiotic susceptibility testing, ... -
Enhancing light absorption and lifetime stability of organic solar cells using pentacene encapsulation
(SA Institute of Physics, 2015). In the present work we compare the performance of a pristine P3HT:PCBM based bulk heterojunction solar cell with a device incorporated with pentacene encapsulated Ag nanoparticles. Encapsulation has been achieved through ... -
Moderating effect of organization culture on the relationship between quality management system adoption and performance of public universities in Kenya
(Academic Journals, 2021)The capacity of higher education institutions (HEIs) to serve as drivers to economic competitiveness has been negatively impacted due to the exponential growth and numerous constraints which interfere with their quality. ... -
Improved efficiency of organic solar cells using Au NPs incorporated into PEDOT: PSS buffer layer
(AIP Publishing LLC, 2017)Au based plasmonic phenomenon inside the hole transport layer poly(3,4- ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS) of an organic solar cell based on blend of poly(3-hexylthiophene) (P3HT) and [6:6]-phen ... -
Structural and spectroscopic analysis of ex-situ annealed RF sputtered aluminium doped zinc oxide thin films
(AIP Publishing LLC, 2017)Aluminium doped zinc oxide thin films are prepared by Radio Frequency magnetron sputtering in pure argon atmosphere at 100 W. The structural results reveal good film adhesion on a silicon substrate (001). The thin films ... -
[HTML] from rsc.org Effect of thermal treatment on ZnO: Tb 3+ nano-crystalline thin films and application for spectral conversion in inverted organic solar cells
(Royal Society of Chemistry, 2018)Down conversion has been applied to minimize thermalization losses in photovoltaic devices. In this study, terbium-doped ZnO (ZnO:Tb3+) thin films were deposited on ITO-coated glass, quartz and silicon substrates using ... -
Role of oxygen concentrations on structural and optical properties of RF magnetron sputtered ZnO thin films
(Springer US, 2019)We report an investigation on the efect of oxygen fow rate on the structural and optical properties of zinc oxide thin flms prepared by RF magnetron sputtering. The structural measurements were carried using grazing ... -
Probing the stoichiometry dependent catalytic activity of nickel selenide counter electrodes in the redox reaction of iodide/triiodide electrolyte in dye sensitized solar cells
(Royal Society of Chemistry, 2020)Nickel selenide (NixSey) systems have received much attention in recent years as potential low cost counter electrodes (CEs) in dye sensitized solar cells (DSSCs). Their electrocatalytic activities are comparable to ... -
Annealing efect on the structural and optical behavior of ZnO:Eu3+ thin flm grown using RF magnetron sputtering technique and application to dye sensitized solar cells
(Nature Publishing Group, 2020)Eu-doped ZnO (ZnO:Eu3+) thin flms deposited by RF magnetron sputtering have been investigated to establish the efect of annealing on the red photoluminescence. PL spectra analysis reveal a correlation between the ... -
The effect of temperature and time on the properties of 2D Cs 2 ZnBr 4 perovskite nanocrystals and their application in a Schottky barrier device
(Royal Society of Chemistry, 2021)2D hybrid perovskites are promising materials for solar cell applications, in particular, cesium-based perovskite nanocrystals as they offer the stability that is absent in organic–inorganic perovskites. However, the most ... -
Comparative Investigation of Fullerene PC 71 BM and Non-fullerene ITIC-Th Acceptors Blended With P3HT or PBDB-T Donor Polymers for PV Applications
(Frontiers, 2021)Fundamentally, organic solar cells (OSCs) with a bulk-heterojunction active layer are made of at least two electronically dissimilar molecules, in which photoabsorption in one (donor) generates Frenkel excitons. The ...