Browsing School of Biological, Physical, Mathematics & Actuarial Sciences by Title
Now showing items 24-43 of 246
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Biogenic Synthesis of Gold Nanoparticles from Physalis peruviana and Application in Wound Healing
(2022-09-12)Wound management is key to healing. Poorly managed wounds lead to abnormal biological reactions and complications. Microorganisms, bacteria or fungi, infect such wounds leading to their chronic nature. Gold nanoparticles ... -
Biogenically Synthesized Silver/Gold Nanoparticles, Mechanism and their Applications: A Review
(Asian Journal of Chemical Sciences, 2022-02-28)As a result of climate change and rapid urbanization, attention increasingly turns to the management of water resources. Proper management of water resources has become a core concern for development practitioners and ... -
Canopy scale CO2 exchange and productivity of transplanted paddy and direct seeded rainfed rice production systems in S. Korea
(Elsevier, 2016)Rice (Oryza sativa L.) is a primary food crop that supports more than half the world population. Paddy rice accounts for more than 75% of the total global rice production but requires large amounts of water for irrigation. ... -
Canopy transpiration and stomatal responses to prolonged drought by a dominant desert species in central Asia
(MDPI AG, Basel, Switzerland, 2017)In arid and semiarid lands, canopy transpiration and its dynamics depend largely on stomatal sensitivity to drought. In this study, the sap flow of a dominant species, Haloxylon ammodendron growing in Central Asian deserts, ... -
Carbon dioxide exchange and its regulation in the main agro-ecosystems of Haean catchment in South Korea
(Elsevier, 2015)The Asian agricultural landscape, which accounts for approximately 12.6% of the world’s agricultural land, is highly heterogeneous due to the multicultural cropping system. Information regarding CO2 exchange and carbon (C) ... -
Changes in forest soil properties in different successional stages in lower tropical China
(Plosone.org, 2013)Background: Natural forest succession often affects soil physical and chemical properties. Selected physical and chemical soil properties were studied in an old-growth forest across a forest successional series in Dinghushan ... -
Characterization of Norm-Attainable Operators
(International Journal of Mathematical Archive, 7/13/2018)In this paper we characterize norm-attainable elementary operators, we show that 𝛿 𝑃,𝑄 is norm-attainable if both P and Q are norm-attainable and𝛿𝑃,𝑄 is norm-attainable 𝛿𝑃,𝑄if is normally represented. -
Characterization of the late embryogenesis abundant (LEA) proteins family and their role in drought stress tolerance in upland cotton
(2018)Late embryogenesis abundant (LEA) proteins are large groups of hydrophilic proteins with major role in drought and other abiotic stresses tolerance in plants. In-depth study and characterization of LEA protein families ... -
Characterization of Topological Fuzzy Sets in Hausdorff Spaces
(TFFS Journals, 2022)In this paper, we have characterized big data fuzzy sets and shown that topological data points form singleton fuzzy sets which are closed. Besides, fuzzy sets of topological data points are compact and have at least one ... -
Choi Matrices of 2-positive Maps on Positive Semidefinite Matrices
(Asian Research Journal of Mathematics, 4/27/2020)Several investigations have been done on positive maps on their algebraic structures with more emphasis on completely positive maps. In this study we have described the structure of the Choi matrices for 2−positive maps ... -
Climbing Up the Hills: Expansion of Agriculture around the Ruma National Park, Kenya
(International Journal of Remote Sensing, 2019-04-05)A major factor driving changes in land use and land cover (LULC) is the human population growth associated with an expanded agricultural production. In the Lambwe valley in Homabay County, Kenya, the most important reason ... -
A Combination of Dividend and Jump Diffusion Process on Heston Model in Deriving Black Scholes Equation
(International Journal of Statistics and Applied Mathematics, 12/10/2021)The reality that exists in a stock market situation is that assets do pay dividend to owners of assets or derivative securities. Dupire, Derman and Kani built an option pricing process with a dividend yielding diffusion ... -
Comparative Analysis of Sars-Cov-2 Detection Methods Using Stool, Blood, and Nasopharyngeal Swab Samples
(The Pan African Medical Journal, 2023-09-14)As a public health policy, the ongoing global coronavirus disease 2019 vaccination drives require continuous tracking, tracing, and testing of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Diagnostic testing ... -
A comparison of CO2 fluxes via eddy covariance measurements with model predictions in a dominant subtropical forest ecosystem
(Copernicus Publications, 2009)CO2 fluxes were measured continuously for twelve months (2003) using eddy covariance technique at canopy layer in a dominant subtropical forest in South China. Our results showed that daytime maximum CO2 fluxes of the whole ... -
Comparison of the ratio estimate to the local linear polynomial estimate of finite population totals
(IJESM, 2013-03)In this paper, attempt to study effects of extreme observations on two estimators of finite population total theoretically and by simulation is made. We compare the ratio estimate with the local linear polynomial estimate ... -
Competition in Kenyan soils between Rhizobium leguminosarum biovar phaseoli strain Kim5 and R. tropici strain CIAT899 using the gusA marker gene
(Kluwer Academic Publishers, 1998-07)The contribution of appropriate inoculum strains to more efficient nitrogen fixation by legumes has been difficult to assess due to the laborious nature of the assays involved in assessing establishment of inoculum strains ... -
Completely Positive Map from M4(C) to M5(C) on Positive Semidefinite Matrices
(Journal of Mathematical Analysis and Modeling, 3/29/2022)Positive Maps Are Essential In the Description of Quantum Systems. However, Characterization Of The Structure Of The Set Of All Positive Maps Is A Challenge In Mathematics And Mathematical Physics. We Construct A Linear ... -
Conditional variations in temperature response of photosynthesis, mesophyll and stomatal control of water use in rice and winter wheat
(2016)Environmental responses of photosynthesis and CO2 diffusive conductance as fundamental information for photosynthesis-transpiration coupled model have been increasingly concerned while are still research areas with unanswered ... -
Conditions for Positivity of Operators in Non-unital C*-algebras
(International Journal of Mathematical Analysis, 1/9/2015)In this paper, we present results on the necessary and sufficient condi-tions for positivity of operators in non-unital C*- algebras -
Construction of nominal yield curve for Nairobi securities exchange: an improvement on monotone preserving r(t)t interpolation method
(Scientific Research Publishing Inc., 2015-11)There is no agreed-upon method used to construct yield curves at the Nairobi Securities Exchange. The existing practice is that each financial company uses in-house methods to construct the yield curves for their pricing ...