Browsing School of Biological, Physical, Mathematics & Actuarial Sciences by Title
Now showing items 215-234 of 246
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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 ... -
Spatial heterogeneity in stand characteristics alters water use patterns of mountain forests
(2017)Agricultural intensification is a leading cause of global biodiversity loss, which can reduce the provisioning of ecosystem services in managed ecosystems. Organic farming and plant diversification are farm management ... -
Spatial Heterogeneity of Malaria Vectors and Malaria Transmission Risk Estimated Using Odour-Baited Mosquito Traps
(BMC- Malaria Journal, 2014-09-22)Prior to the commencement of a large-scale malaria intervention study on Rusinga Island, western Kenya, intensive baseline surveillance of the mosquito population was performed using odour-baited traps. The survey aimed ... -
Spatial Motion of Multi-Pendula Systems
(International Journal of Science and Research, 7/7/2017)A multiple chain pendula system constrained to move in space has been studied within the framework of a generalized coordinate system by using the Lagrangian formalism. Equations of motions for many body pendula systems ... -
Spatially Variable Risk Factors for Malaria in a Geographically Heterogeneous Landscape, Western Kenya: An Explorative Study
(Malaria Journal, 2016-06-01)Large reductions in malaria transmission and mortality have been achieved over the last decade, and this has mainly been attributed to the scale-up of long-lasting insecticidal bed nets and indoor residual spraying with ... -
Spin Reorientation, Normal and Inverse Magnetocaloric Effects in Heavy Rare-Earth Iron Garnets
(Elsevier, 2020-08-01)Experiments for heavy rare-earth iron garnets Ho3Fe5O12 and Er3Fe5O12 show a compensation effect characterized by a near zero magnetization at 134 K and 80 K, respectively. The magnetic entropy change calculated according ... -
Stand characteristics and water use at two elevations in a sub-tropical evergreen forest in southern China
(Elsevier, 2014)The humid evergreen monsoon forests in China and other parts of Asia contribute significantly to the global and regional atmospheric circulation and hydrological cycle. The forests are, however, changing in structure due ... -
Sum Construction of Automorphic Symmetric Balanced Incomplete Block Designs
(International Journal of Scientific Research in Mathematical and Statistical Sciences, 2020-08)In this study Sum construction method of automorphic symmetric balanced incomplete block designs has been presented in details. Efficiency of a test design used in the Sum construction of automorphic symmetric balanced ... -
Supplement understanding of the relative importance of biophysical factors in determination of photosynthetic capacity and photosynthetic productivity in rice ecosystems
(Elsevier, 2016)Extensive variation in gross primary production (GPP) among growing seasons in rice ecosystems, which has previously been reported, may be caused by a number of biophysical factors. Two field-based studies, one on Oryza ... -
Survival Analysis of Broilers in Two Poultry Farms in Kaloleni Sub County
(International Journal of Statistics and Applied Mathematics, 2018)This research is about a survival analysis on broilers in two poultry farms in Kaloleni sub-county. Chapter one gives an insight into the introduction of the paper, chapter two discusses the methodology used, chapter three ... -
Sweet Potato Leaf Spot Diseases and Farmer’s Indigenous Knowledge in Parts of Western Kenya
(International Journal of Research Studies in Agricultural Sciences (IJRSAS), 2021-11)Sweet potato (Ipomoea batatas L.) is a starchy, tuberous root with worldwide consumption. Production of sweet potatoes in Kenya is low due to disease constraints, such as fungal sweet potato leaf spot (SPLS), which is not ... -
Symmetry group approach to the solution of generalized burgers equation: Ut + UUx = λUxx
(2013)Symmetry of a system of differential equations is a transformation that maps any solution to another solution of the system. In Lie’s framework such transformations are groups that depend on continuous parameters and ... -
Teachers` gender and primary school pupils` achievement in mathematics in Kenya
(Journal of Education and Practice, 2013)This descriptive causal comparative study examined the relationship between teacher’s gender and in primary schools pupils’ performance in mathematics in Kenya. The study objective was to investigate the effect of teachers’ ... -
Technological tools for sustainable development in developing countries: The example of Africa, a review
(Elsevier, 2017-10)Abstract The development of Africa including industrialization such as chemical production, urbanization, agriculture, waste disposal, and electric power generation has a direct and diverse effect on the environment. These ... -
Trace Metal Detection in Aqueous Reservoirs Using Stilbene Intercalated Layered Rare-Earth Hydroxide Tablets
(Hindawi, 2020-03-30)Contamination of aquatic reservoirs with metal ions is a slow gradual process that is not easy to detect. Consequences of the metal ions, especially the ones with high atomic numbers (heavy metals) at high concentrations, ... -
Transpirational water use and its regulation in the mountainous terrain of S. Korea
(American Geophysical Union, 2009)Quantifying water use by forests growing on complex mountainous terrain is difficult and understanding of controls on water use by these forests a challenge. Yet mountains are crucial as water towers and better understanding ... -
Treatment of tea industry wastewater using a combined adsorption and advanced oxidation process
(International Conference on Sustainable Research and Innovation, 2014)Tea, produced from the evergreen plant, Camellia Sinensis, is the most widely consumed beverage in the world after water. Although tea processing has now diversified into various speciality end products such as instant, ... -
Tree growth and water-use in hyper-arid Acacia occurs during the hottest and driest season
(Springer-Verlag GmbH Germany, 2018)Drought-induced tree mortality has been recently increasing and is expected to increase further under warming climate. Conversely, tree species that survive under arid conditions might provide vital information on successful ...