Browsing Journal Articles (PAS) by Issue Date
Now showing items 41-60 of 258
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Antimicrobial Compounds from Terminalia brownii against Sweet Potato Pathogens
(Bentham Science Publishers, 2011)Phytochemical evaluation of Terminalia brownii extracts led to the isolation of five compounds namely - sitosterol, stigmasterol, monogynol A, betulinic acid and arjungenin. Their structures were established by spectroscopic ... -
7a-Acetylugandensolide and antimicrobial properties of Warburgia ugandensis extracts and isolates against sweet potato pathogens
(Elsevier, 2011)7a-Acetylugandensolide together with thirteen known drimane-type sesquiterpenes have been isolated from Warbugia ugandensis bark extracts. Their structures were established by spectroscopic and physical methods as well as ... -
Activity concentrations of 40K, 232Th, 226Ra and radiation exposure levels in the Tabaka soapstone quarries of the Kisii Region, Kenya
(African Journal of Environmental Science and Technology, 2011)A radiological study was carried out in the soapstone quarries of Tabaka region of Kisii district in the Southern Nyanza province, Kenya, where soapstone has been mined and used as a carving medium for hundreds of years. ... -
Nutritional vulnerability of older persons living in urban areas of Lake Victoria Basin in East Africa: a cross sectional survey.
(Journal of Nutrition in Gerentology and Geriatrics, 2012)The aim of this study was to (1) determine the prevalence of malnutrition and (2) investigate factors affecting nutritional status of older persons living in urban areas of Lake Victoria Basin. The prevalence of underweight ... -
East African pholcid spiders: an overview, with descriptions of eight new species (Araneae, Pholcidae)
(European Journals, 2012)This paper summarizes current knowledge about East African pholcids. East Africa is defi ned as the area from 12°S to 5°N and from 28° to 42°E, including all of Uganda, Kenya, Burundi, Rwanda, and Tanzania. An annotated ... -
ASYMPTOTIC LINEAR ESTIMATION OF THE QUANTILE FUNCTION OF THE DOUBLE-EXPONENTIAL DISTRIBUTION BASED ON SELECTED ORDER STATISTICS
(2012)Asymptotic linear estimation of the quantile function for the location-scale family of distributions is considered and results relating to the double-exponential distribution discussed. A formula for the selection of sample ... -
Cellular responses against Schistosoma mansoni in immunized Balb/c mice with soluble proteins from intermediate host, Biomphalaria pfeifferi
(2012-10)Scores of millions of people around the world are infected by Schistosoma mansoni causing considerable morbidity, mortality and loss of productivity. Safe chemotherapeutic agents have been used though there are challenges ... -
Widespread reliance on olfactory sex and species identification by lyssomanine and spartaeine jumping spiders
(Oxford, 2012-10)Jumping spiders (Salticidae) are renowned for their exceptional vision, but this does not preclude use of other senses. Here we provide evidence that olfactory pheromones are widespread in the Spartaeinae and Lyssomaninae, ... -
Phytoecdysteroids from the Stem Bark of Vitex doniana and Their Anti-Inflammatory Effects
(Georg Thieme Verlag, 2012-10)With reference to the ethnopharmacological significance of Vitex doniana Sweet (Lamiaceae) leaves in the treatment of stomach and rheumatic pains as well as inflammatory disorders, biological studies on its stem bark ... -
(4-{[(Pyridin-4-yl)methylidene]amino}- phenyl)ferrocene
(2012-11-21)The asymetric unit of the title compound, [Fe(CH)(CHN)], contains two independent mol-ecules whose conformations differ, especially in the 4-{(pyridin-4-yl)methyl-idene]amino}-phenyl unit where one is flipped by almost ... -
Effect of settlement on nutrition and health status of pastoral Gabra women of reproductive age in Kalacha Location, Marsabit County, Kenya
(2012-12)The objective of the present study was to evaluate the effect of settlement on the nutrition and health status of pastoral women of reproductive age. A cross-sectional survey that included a 24 h dietary recall was ... -
NUTRITIONAL COMPOSITION OF THE PUMPKIN (Cucurbita spp.) SEED CULTIVATED FROM SELECTED REGIONS IN KENYA
(2013)Cucurbita is one of the underutilized crops and its existence in Kenya is presently threatened due to neglect. The pumpkin is a rich source of nutrients and has medicinal properties. However, owing to the perception that ... -
Environmental Communication: A Review of Information Sources and Communication Channels for Enhanced Community-Based Natural Resource Management in the Greater Mara Region of Kenya
(Sage Publications, 2013)The Mara-Serengeti is an ecosystem of immense importance to both Kenya and Tanzania, contributing significantly to the economies of both countries and forming a rich biodiversity reservoir. This ecosystem is among the most ... -
Beneficiation of Iron in Thermal-Reduced Ilmenite by Magnetic Separation
(2013)Increasing demands for Iron in countries development, and lack of conventional reducing agents has resulted into sourcing of alternative ways of beneficiating the iron ore. This paper reports on the study that was done to ... -
THE ROLE ON GENDER POLICY IN „SCALING UP‟ GIRLS „ACCESS TO SECONDARY SCHOOL EDUCATION IN KENYA
(International Journal of Disaster Management and Risk Reduction, 2013)The Kenya government‟s commitment to increase girls‟ participation, retention, transition and completion at secondary school level is well documented in official government documents. It is also part of the Governments ... -
FACTORIZATION OF LARGE COMPOSITE INTEGER
(International Journal of Mathematics and Statistics Studies, 2013)In this paper we practically deal with the problem of factorizing large integers. The various algorithms that have been proposed are not efficient that is they do not run in polynomial time. We use the algebraic approach ... -
Synthesis, Antiplasmodial Activity, and β‑Hematin Inhibition of Hydroxypyridone−Chloroquine Hybrids
(American Chemical Society, 2013)A series of noncytotoxic 4-aminoquinoline-3-hydroxypyridin- 4-one hybrids were synthesized on the basis of a synergistic in vitro combination of a precursor N-alkyl-3-hydroxypyridin-4-one with chloroquine (CQ) and tested ... -
Effects of zeolites X and Y on the degradation of malathion in water
(Science Publishing Group, 2013-04)The inclusion of both zeolites X and zeolite Y significantly affected the dissipation of malathion in water. In the fresh water, malathion degradation followed a pseudo-first order kinetics with concomitant half-life ...