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Sap Flow Dynamics and Responses to Grazing and Seasonal Changes in Soil Moisture for Acacia Ancistroclada and Comberatum Molle in a Kenyan Savanna
(Research Square, 2020-08-07)
The Kenyan savanna, which is dominated by Acacia ancistroclada and Comberatum molle, has experienced notable changes in rainfall patterns and increased livestock grazing. A significant decrease in trees spread from 5 % to ...
Review of current state of knowledge of microcystin and its impacts on fish in Lake Victoria
(Lakes and reserviors,science,policy and management for sustainable use, 2020-07-03)
Microcystins are part of algal toxins produced intracellularly within algal cells, being in the family of hepatotoxic cyclic peptides from various species of blue‐green algae. Blue‐green algae are widely abundant in many ...
Rheological Properties of Blends of Isotactic Polystyrene–Isotactic Poly(para-methylstyrene) Films Derived from a Comparative Dewetting Study
(American Chemical Society, 2020)
We examined changes in rheological properties of nonequilibrated spin-coated thin films of isotactic polystyrene (iPS) and isotactic poly(para-methylstyrene) and blends thereof by dewetting experiments. For 200 nm thick ...
α-Amylase and α-glucosidase inhibitors from Zanthoxylum chalybeum Engl. root bark
(Elsevier, 2020-10-01)
A systematic analysis of the root bark of Zanthoxylum chalybeum was conducted to establish the antidiabetic potential of isolated compounds based on its ethnomedicinal use to manage diabetes. Chromatographic separation of ...
Quasiparticle spinors in light-matter interactions: generalized Jaynes-Cummings and antiJaynes-Cummings models
(Research gate, 2020)
Seeking a clear understanding of the physical nature of quasiparticle excitations formed in the JaynesCummings and antiJaynes-Cummings interaction mechanisms in the quantum Rabi model, we have introduced appropriate composite ...
Shell structure of the SU (N) generator spectrum: interpretation as spin angular momentum operators
(Research gate, 2020)
We have established that SU(N) symmetry group generators occur in a spectrum with a
quantum structure composed of N − 1 configuration shells each containing a definite number of
symmetric and antisymmetric pairs of ...
Determinants of Sale Response Probability and Tourism Backward Linkage with Local Micro and Small Enterprises of Kisumu County–Kenya
(Journal of Tourism Management Research, 2020)
Tourism backward linkage with local enterprises in an economy enhances its economic
impact. However, high income leakages experienced in Sub Sahara Africa especially in
Kisumu County in Kenya indicate limited tourism ...
Moderating Effect of Tourism Bnetworks on Tbackward Linkage with Local Micro and Small Enterprises in Kisumu County.
(Sinop University, 2020)
The study aimed to establish whether the effect of physical location and type of tourism enterprises, on extent of tourism backward linkage with local enterprises in Kisumu County was moderated by business networks established ...
: Spray Pyrolysis Technique (SPT) was used to deposit thin films (TFs) of cadmium stannate, doped with iron (Fe) for the first time. The precursor solutions that were used wereprepared at a concentration of 0.1M, doped with Feand then sprayed onto the pre-heated glass slides immediately at deposition temperatures of 350 ± 7°C, 400 ± 7°C and 450 ± 7°C. The optical properties of the deposited Fe-doped TFs were studied in the wavelength range of 300-1100nm. The X-Ray diffraction (XRD) studies showed that the TFs were orthorhombic with growth orientation along the (2 0 0) direction. Film thickness of 85 ± 10 nm was obtained. It was found out that anincrease in the deposition temperature increased transmittance and band gap, but decreased absorption coefficient, extinction coefficient and refractive index, which was attributed to the improvement in crystallinity of the deposited TFs. Doping reduced transmittance and band gap, but increased refractive index, absorption coefficient and extinction coefficient, which was attributed to the increase in free carriers. KEYWORDS:cadmium stannate, deposition temperature, iron-doped, optical properties of cadmium stannate
(Elsevier, 2020)
The elastic properties of the orthorhombic cadmium stannate (Cd2SnO4) were investigated using density functional theory, applying both energy-strain relationship (which is found in the literature) and stress-strain ...