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Bioactive carbazole alkaloids from Alysicarpus ovalifolius (Schumach)
(The Korean Society for Applied Biological Chemistry, 2015-12-01)
Phytochemical and biological evaluation of the stem bark of Alysicarpus ovalifolius led to the
isolation of three carbazole alkaloids identified as mohanimbine (1), koenimbine (2) and
koenidine (3) along with quercetin ...
Antimicrobial activities of microorganisms obtained from the gut of Macrotermes michaelseni in Maseno, Kenya
(Journal of Applied Biology and Biotechnology, 2015-11)
The gut of termites is a major source of termicin and spinigerin antibiotics. The termite gut thus presents a novel
habitat for searching new antibiotic producing isolates. The objective of this study was to investigate ...
Allelopathic potential of mexican sunflower [tithonia diversifolia (hemsl) a. Gray] on germination and growth of cowpea seedlings (vigna sinensis l.)
(2015)
Invasive plant species when introduced into new environments may result into a number of
ecological problems (Howard et al., 2000). They may influence other species through
pathways such as allelopathy or phytotoxicity ...
Growth changes of seven Amaranthus (spp) during the vegetative and reproductive stages of development as influenced by variations in soil water deficit
(International Journal of Research and Innovations in Earth Science, 2015)
Soil water deficit is a principal a biotic factor that limits plant growth and development in dry areas. Insufficient moisture contributes to soil water deficit and some negative effects on Amaranthus (spp) such as reduced ...
On the steady MHD couette flow between two infinite parallel plates in an uniform transverse magnetic field
(2015)
In this paper we consider laminar viscous incompressible fluid between two
infinite parallel plates when the upper plate is moving with constant velocity Uo
and the lower plate is held stationary under the influence of ...
Progressively accurate WKB approximations through factorization and successive boost transformations
(Research gate, 2015)
This paper develops a procedure for obtaining progressively improving approximate solutions
of the WKB (semiclassical ) model of the stationary Schroedinger equation through factorization and successive boost transformations ...
Composite Hermite and Anti-Hermite Polynomials
(Scientific Research Publishing, 2015)
The Weber-Hermite differential equation, obtained as the dimensionless form of the stationary
Schroedinger equation for a linear harmonic oscillator in quantum mechanics, has been expressed
in a generalized form through ...
Ab Initio study of the electronic and optical properties of hexagonal and cubic Ge2Sb2Te5
(African Review of Physics, 2015-04)
The electronic and optical properties of hexagonal and cubic Ge 2 Sb 2 Te 5 have been calculated using the QUANTUM ESPRESSO and Yambo codes. The study has considered the variation of electronic band gaps with lattice ...
Ab initio study of the structural, vibrational and thermal properties of Ge2Sb2Te5
(International Journal of Computational Materials Science, 2015-05-12)
The structural, vibrational and thermal properties of hexagonal as well as cubic Ge2Sb2Te5 (GST) have been calculated from first principles. The relative stability of the possible stacking sequences of hexagonal GST has ...
Patterns of CO2 exchange and productivity of the herbaceous vegetation and trees in a humid savanna in western Kenya
(Springer Science+ Business Media Dordrecht, 2015)
Factors governing the dynamics between woody and herbaceous vegetation in the savanna are of ecological interest since they determine ecosystem productivity and stability. Field measurements were conducted in a humid savanna ...