Browsing School of Biological, Physical, Mathematics & Actuarial Sciences by Title
Now showing items 198-217 of 246
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Recent Advances on Mercury Speciation in Aquatic Ecosystems, Health Effects and Analytical Techniques
(SCIENCEDOMAIN international, 2017-02-18)Elemental mercury is not as poisonous as its congeners such as methyl mercury and dimethyl mercury, especially at trace levels. However, understanding the speciation mechanisms of mercury in aquatic ecosystems ... -
Reconstructing Global Earth Observation Based Vegetation Index Records with Stochastic Partial Differential Equations Approach
(Academia, 2018)Long-term Earth observation based vegetation index records have been used extensively by researchers to assess vegetation response to global climate variability and change. However, the records exhibit multiple temporal ... -
Recurrent Malaria in Kenya: Survival Distribution and Equality of Survival Distribution
(ResearchGate, 2017-12)Malaria is a leading cause of morbidity and mortality in Kenya, mostly affecting the rural poor, especially young children and pregnant women. Most clinical studies in malaria involve a number of equally important endpoints. ... -
Relationship between Goal-Setting and Mathematics Achievement among Students in Public Secondary Schools in Kenya
(International Journal of Advanced and Multidisciplinary Social Science, 2019)The purpose of this study was to investigate selected goal-setting as a predictor of mathematics performance among students in public secondary schools in Kisii Central Sub-County, Kenya. The study was guided by the Social ... -
Relative Efficiency of Sum Constructed Automorphic Symmetric Balanced Incomplete Block Designs
(ResearchGate, 2020)Several construction methods have been introduced to build the elements of BIBDs’ for specific parameters, with different techniques suggested for testing their existence, still no general technique to determine the ... -
Residual Plasmodium falciparum Parasitemia in Kenyan Children After Artemisinin- Combination Therapy Is Associated With Increased Transmission to Mosquitoes and Parasite Recurrence
(The Journal of Infectious Diseases, 2013-08-14)Parasite clearance time after artemisinin-based combination therapy (ACT) may be increasing in Asian and African settings. The association between parasite clearance following ACT and transmissibility is currently unknown. ... -
Responses of CO2 exchange and primary production of the ecosystem components to environmental changes in a mountain peatland
(Springer Science+Business Media, 2009)The complexity of natural ecological systems presents challenges for predicting the impact of global environmental changes on ecosystem structure and function. Grouping of plants into functional types, that is, groups of ... -
The Role of Acid Concentration on Band Gap Shrinkage in Cellulose Nanocrystals Fabricated from Water Hyacinth
(Journal of Material Sciences & Manufacturing Research, 2022-01-05)In this study, the fingerprint of the acid concentration during the hydrolysis process on the optical band gap of cellulose nanocrystals (CNCs) has been systematically studied. The CNCs have been prepared using hydrochloric ... -
The Role of Bio-Extracted Reduced Graphene Oxide in the Crystallization Kinetics of Chitosan Bio-Polymer
(Scientific research and community, 2021-01-29)Carbon nanomaterials have recently attracted wide scientific applications due to their tunable properties. These novel materials act as best fillers that can provide substantial benefits due to their high strength, thermal ... -
SARS-CoV-2 Detection in Fecal Samples in Sym-asymptotic Patients with Typical Findings of COVID-19 on Ag-RDT and SARS-CoV-2 RT-PCR Tests
(Preprints, 2022-09-28)Coronavirus is a disease caused by a severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) which emerged as a global pandemic in 2019 from Wuhan, China. Since its emergence, it has caused immense suffering to human ... -
Seasonal dynamics in carbon dioxide fluxes of the herbaceous layer of a moist Kenyan savannah
(APPLIED ECOLOGY AND ENVIRONMENTAL RESEARCH, 2014)Strong seasonal variability in African carbon source/sink relationship is considered the continent’s most significant contribution to the global carbon cycle. Alternating dry and wet periods dictate ecosystem carbon exchange ... -
Seed dispersal by Tana River mangabeys in fragmented gallery forests
(SciRes., 2012)Data collected on a free ranging group of Tana River mangabeys (Cercocebus galeritus) indicates that this endangered primate species, which has previously been regarded as a seed predator, plays an important role in seed ... -
Sensitivity Analyses of Population Projection Matrix of Cestrum Aurantiacum
(Kenya Forestry Research Institute/Jaramogi Oginga Odinga University of science and Technology., 2020)The Lefkovitch stage specific matrix population models are divided into discrete stage classes defined by a growth variable such as size, height and diameter at breast height for trees. In matrix model, the deterministic ... -
Sensitivity of peatland herbaceous vegetation to vapor pressure deficit influences net ecosystem CO2 exchange
(Society of Wetland Scientists, 2012)Mountain peatlands in the temperate regions represent a small proportion of the global peatland resource, but play a unique, although less recognized role in the regional water and biogeochemical cycles. We conducted leaf ... -
Simple Sequence Repeat (SSR) Genetic Linkage Map of D Genome Diploid Cotton Derived from an Interspecific Cross between Gossypium davidsonii and Gossypium klotzschianum
(Multidisciplinary Digital Publishing Institute, 2018-01-11)The challenge in tetraploid cotton cultivars is the narrow genetic base and therefore, the bottleneck is how to obtain interspecific hybrids and introduce the germplasm directly from wild cotton to elite cultivars. ... -
Socio-Cultural Practices on the Use of Beetle Grubs as Food and Feed in Western Kenya
(Scientific Reports, 2023-05-13)We examined the socio-cultural practices on the use of beetle grubs as food and feed in western Kenya by interviewing 211 randomly selected households and conducting seven focus group discussions in Bungoma, Kakamega, ... -
Socio-economic factors influencing the spread of drinking water diseases in rural Africa: case study of Bondo sub-county, Kenya
(IWA Publishing, 2015)Socio-economic and medical information on Bondo sub-county community was studied to help establish the relationship between the water quality challenges, community health and water rights conditions. Health challenges have ... -
Socioeconomic factors influencing dependence of households on non-timber forest products in South Nandi Forest, Kenya
(Journal of Economics and Sustainable Development, 2018)Forests are some of the key natural assets that provide a wide range of goods and services to forest adjacent communities. However, there is inadequate information on the factors that influence community members’ level of ... -
Soil properties along a gradient from hillslopes to the savanna plains in the Lambwe valley, Kenya
(Elsevier, 2015)Changes in land use and management strongly affect the physical and chemical properties of soils and their ecological functions. Especially, regions in East Africa have experienced dramatic land use changes in the past, ... -
Soil water availability and capacity of nitrogen accumulation influence variations of intrinsic water use efficiency in rice
(Elsevier, 2016)Leaf intrinsic water use efficiency (WUEi) coupling maximum assimilation rate (Amax) and transpirable water lost via stomatal conductance (gsc) has been gaining increasing concern in sustainable crop production. Factors ...