Browsing School of Biological, Physical, Mathematics & Actuarial Sciences by Issue Date
Now showing items 21-40 of 246
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Overcoming the Challenges of Estimating Water Use in Temperate, Mixed Deciduous Forest of S. Korea
(American Geophysical Union, 2009)About 80% of forests in Korea occur in mountainous regions and are composed of a rich diversity of mixed deciduous tree species. Mountains in this region receive more rainfall and act as fountains that supply fresh water ... -
The algebra of smooth functions of rapid descent
(2009)A bounded operator with the spectrum lying in a compact set V ⊂ R, has C∞ (V) functional calculus. On the other hand, an operator H acting on a Hilbert space H, admits a C(R) functional calculus if H is self-adjoint. So ... -
The algebra of smooth functions of rapid descent
(2009)A bounded operator with the spectrum lying in a compact set V ⊂ R, has C∞(V ) functional calculus. On the other hand, an operator H acting on a Hilbert space H, admits a C(R) functional calculus if H is self-adjoint. So ... -
Effect of grazing and canopy on Mediterranean ecosystem functioning: Carbon dioxide exchange and the dynamics of carbon and nutrient pools
(EGU General Assembly, 2010)Mediterranean ecosystems occupy less than 5 % of the Earth's surface, yet they contain about 20 % of the world's flora, including important components in grasslands. In this study, important ecosystem functions (CO2 exchange, ... -
Inherently delayed germination of Elgon Teak (Olea capensis) seeds in Kakamega Forest, Kenya
(Kamla-Raj, 2010)Olea capensis in Kakamega forest does not show any evidence of natural regeneration under the parent trees. This study sought to determine the factors that may be responsible for the lack of natural regeneration under the ... -
Incremental modernization of statistics teaching and curriculum at Maseno University, Kenya
(ISI/IASE], 2010)Modernisation of statistics teaching is a continual problem the world over. The advances in statistical methods and tools along with the growing demand of applied practitioners creates a dual need of people with the ... -
Attitudes of students and teachers towards use of computer technology in Geography education
(2010)The ability to display simulated environments through the computer may make it a stimulating instructional tool for illuminating abstract concepts in Geography. In Kenya, there is persistent lack of resources to improve ... -
Impacts of selective logging on population structure and dynamics of a canopy tree (Oleacapensis) in Kakamega forest
(African journal of Ecology, 2010-08-03)This study assessed the impacts of logging on the population structure and dynamics of Elgon teak (Olea capensis), a canopy dominant in Kakamega forest. The objective was to ascertain and determine the regeneration status ... -
Drought responses of Arrhenatherum elatius grown in plant assemblages of varying species richness
(Elsevier, 2011)Evidence exists that plant community diversity influences productivity of individual members and their resistance and resilience during and after perturbations. We simulated drought within the long-term EVENT experimental ... -
Manipulative lowering of the water table during summer does not affect CO2 emissions and uptake in a fen in Germany
(Ecological Society of America, 2011)We simulated the effect of prolonged dry summer periods by lowering the water table on three manipulation plots (D1–3) in a minerotrophic fen in southeastern Germany in three years (2006–2008). The water table at this site ... -
Numerical solution of dynamic vibration equations
(International Journal of mathematical Archive, 2011-09)In this paper, we examine conservative autonomous dynamic vibration equation, , which is time vibration of the displacement of a structure due to the internal forces, with no damping or external ... -
Dynamics of metal uptake and depuration in a parasitized cyprinid fish (Rastrineobola argentea)
(Elsevier, 2012)Infestation of fish by endoparasites may potentially influence metal uptake and elimination by the host. We quantified the metal uptake rate constant (ku) and efflux rate constants (ke) of radiolabeled Cd and Co in the ... -
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 ... -
Environmental controls on growing-season sap flow density of Quercus serrata Thunb in a temperate deciduous forest of Korea
(Ecological Society of Korea, 2012)Sap flux density (SFD) measurements were used, in combination with morphological characteristics of trees and forest structure, to calculate whole-tree transpiration, stand transpiration (St) and mean canopy stomatal ... -
Quantification of ecosystem carbon exchange characteristics in a dominant subtropical evergreen forest ecosystem
(Korean Meteorological Society and Springer Netherlands, 2012)CO2 fluxes were measured continuously for three years (2003–2005) using the eddy covariance technique for the canopy layer with a height of 27 m above the ground in a dominant subtropical evergreen forest in Dinghushan, ... -
Dynamics of metal uptake and depuration in a parasitized cyprinid fish (Rastrineobola argentea)
(Elsevier, 2012)Infestation of fish by endoparasites may potentially influence metal uptake and elimination by the host. We quantified the metal uptake rate constant (ku) and efflux rate constants (ke) of radiolabeled Cd and Co in the ... -
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 ... -
Effects of nitrogen deposition on soil organic carbon fractions in the subtropical forest ecosystems of S China
(2012)Experiments were conducted between 2003 and 2008 to examine how N additions influence soil organic C (SOC) and its fractions in forests at different succession stages in the subtropical China. The succession stages included ... -
The norm attainability of some elementary operators
(Applied Mathematics E-Notes, 2012) -
Dietary Preference of the Rothschild’s Giraffes (Giraffa Camelopardalis Rothschildii) Translocated to Ruma National Park, Kenya
(International Journal of Environmental Science, Management and Engineering Research, 2012-12-20)Without monitoring of animal behavior and the productivity of their environment, the success of a translocation cannot be properly ascertained, nor can important lessons be learned. This study investigated habitat utilization ...