Journal Articles: Recent submissions
Now showing items 2381-2400 of 29894
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Perpendicular Magnetic Anisotropy In Mn2VIn (001) Films: An Ab Initio Study
(University of Nairobi, 2018)First principles study of the magnetic anisotropy of Mn2VIn (001) films show perpendicular magnetic anisotropy (PMA), which increases as a function of the thickness of the film. Density functional theory (DFT) as implemented ... -
Innovation challenges encountered by small and medium enterprises in Nairobi, Kenya
(University of Nairobi, 2018)The current business environment is characterized by tough and unpredictable competitions. All organizations, regardless of their size and scope of operation are faced with tough competition challenges and in order ... -
Adapting clinical practice guidelines for diabetic retinopathy in Kenya: process and outputs
(University of Nairobi, 2018)Background The use of clinical practice guidelines envisages augmenting quality and best practice in clinical outcomes. Generic guidelines that are not adapted for local use often fail to produce these outcomes. Adaptation ... -
Climate change and pastoralists: perceptions and adaptation in montane Kenya
(University of Nairobi, 2018)Tropical montane forests are amongst the most threatened ecosystems by climate change. However, little is known about climatic changes already observed in these montane areas in Africa, or the adaptation strategies used ... -
Quantification of carbon stocks in Mount Marsabit Forest Reserve, a sub-humid montane forest in northern Kenya under anthropogenic disturbance
(University of Nairobi, 2018)The quantification of carbon stocks is vital for decision making in forest management, carbon stock change assessment and scientific applications. We applied the land degradation surveillance framework (LDSF) method with ... -
Factors affecting asynchronous e-learning quality in developing countries university settings
(University of Nairobi, 2018)Despite the potential of Learning Management System (LMS) supported asynchronous e-learning to improve asynchronous e-learning system quality by enhancing learning effectiveness and academic achievement of HEIs , several ... -
A co-integration analysis of the interdependencies between crude oil and distillate fuel prices
(University of Nairobi, 2018)The co-evolution and co-movement of financial time series are of utmost importance in contemporary finance, especially when considering the joint behaviour of asset price realizations. The ability to model interdependencies ... -
Influence of annealing temperature on some optical and structural properties of Cu2ZnSnS4 deposited by CZT co-electrodeposition coupled with chemical bath technique
(University of Nairobi, 2018)Copper indium gallium selenide (CIGS) is currently most efficient thin film solar technology in use but it is faced with problems of material scarcity and toxicity. An alternative earth abundant and non-toxic materials ... -
A rapid MRI reconstruction method based on compressive sampling and concomitant artifacts suppression
(University of Nairobi, 2018)In this paper, a proposed rapid Magnetic Resonance Imaging (MRI) reconstruction method is presented. The method is based on the compressibility of the images in the wavelet domain and suppression of the resulting artifacts. ... -
Adapting agriculture to climate change: suitability of banana crop production to future climate change over Uganda
(University of Nairobi, 2018)The aim of this study was to determine suitability zones of future banana growth under a changing climate to guide the design of future adaptation options in the banana sub-sector of Uganda. The study used high resolution ... -
Structural, Electronic And Magnetic Properties Of The Heusler Alloy Mn 2 VIn: A Combined DFT And Experimental Study
(University of Nairobi, 2018)Structural, electronic and magnetic properties of the Heusler alloy Mn 2 VIn have been investigated using the density functional theory and experimental techniques. Unlike many other Heusler ... -
Perpendicular Magnetic Anisotropy In Mn2VIn (001) Films: An Ab Initio Study
(University of Nairobi, 2018)First principles study of the magnetic anisotropy of Mn2VIn (001) films show perpendicular magnetic anisotropy (PMA), which increases as a function of the thickness of the film. Density functional theory (DFT) as implemented ... -
LIBS development methodology for forensic nuclear materials analysis
(University of Nairobi, 2018)Nuclear forensics (NF) is an important tool for the analysis of intercepted nuclear and radiological materials (NRM) to establish the relationship between NRM and their attribution in support of nuclear security. The ... -
Occurrence and multivariate exploratory analysis of the natural radioactivity anomaly in the south coastal region of Kenya
(University of Nairobi, 2018)Characterized by a variety of rock formations, namely alkaline, igneous and sedimentary that contain significant deposits of monazite and pyrochlore ores, the south coastal region of Kenya may be regarded as highly ... -
Trends of intraseasonal descriptors of wet and dry spells over equatorial eastern Africa
(University of Nairobi, 2017)Many African countries whose economies are largely based on weather/climate sensitive sectors are vulnerable to long‐term changes in weather and climate. This study is aimed at assessing whether the recent decades have ... -
Screening for congenital fetal anomalies in low risk pregnancy: the Kenyatta National Hospital experience
(University of Nairobi, 2018)Background: Congenital malformations contribute significantly to the disease burden among children globally. A study conducted in Kenya on understanding the burden of surgical congenital anomalies, highlights the need ... -
Cytokine Expression and Hypertension Comorbidity in HIV/AIDS Patients at Kenyatta National Hospital HIV Care Centre, Nairobi, Kenya
(University of Nairobi, 2018)Chronic inflammation in HIV disease is sustained by immune reconstitution that results from use of combination therapy by patients and manifested by increased expression of inflammatory cytokines. Chronic inflammation in ... -
Microbiological quality and contamination level of water sources in Isiolo county in Kenya
(University of Nairobi, 2018)Water security and safety is of vital concern in arid and semiarid regions of Kenya. Potable water accessibility and supply is limited due to fluctuating climatic conditions and environmental pollution that lower the ... -
Influence of Urbanisation on Minimum and Maximum Temperature characteristics over Nairobi City
(Journal of Climate Change and Sustainability, 2018-04)Urban Heat Island being the most investigated aspect of urban climate is not prominently investigated in tropical African urban areas. This paper seeks to address the influence of urbanization on outdoor temperature ... -
Prevalence Of Vitamin D Deficiency In Adult Human Immunodeficiency Virus Infected Persons At District Hospital In Nairobi, Kenya
(University of Nairobi, 2018)Abstract: Background : The increased availability of highly active antiretroviral therapy (HAART) for Human immunodeficiency virus ( HIV ) infected patients has led to significant reduction in mortality. ...