School of Biological and Physical Science: Recent submissions
Now showing items 381-400 of 933
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Differentiation of the C3 and C4 dicot (Centrospermeae) species along the altitudinal-aridity gradient and their ecological implications in bioproductivity paradigm in Kenya
(International Journal of Agriculture and Animal sciences, 4 (4), 2016)Centrospermeae specieswere collected at different sites along gradient of altitudes and aridity. Climatic data were obtained from meteorological research stations. Kranz leaf syndrome, δ13C values and carbon dioxide ... -
Phytochemical analysis of some selected plants and families in the university botanic garden Of Maseno, Kenya
(IOSR journal of pharmacy and biological sciences, 2017)There has scarcely been any attempt to carry out phytochemical analysis on various insitu and ex situ plants conserved at the University Botanic Garden and no research has been done to document the educational and economic ... -
Checklist of plants in the University Botanic Garden of Maseno and their significances to the society
(Journal of Pharmacy and Biological Sciences (Press), 2017)A botanical garden is an area set aside and maintained by an organization for growing and studying various groups of plants for aesthetic, conservation, economic, educational, recreational and scientific purposes. A lot ... -
Medicinal plants of Kakamega forests and their consistency applications: Opportunities and Challenges to-date
(J. Pharm. Biol. Sci, 2018)Biodiversity is fundamental and foundation to offering plant germplasmfor scientific investigations in the provision of useful biodata and biomedical data, both to benefit the flora and fauna. Studies were undertaken in ... -
Morphological Characterisation of Global Finger Millet (Eleusine coracana, L. Gaertn) Germplasm Reaction to Striga in Kenya
(AJBGMB, 2018-11-12)Finger millet (Eleusine coracana, L. Gaertn) is an important food crop in Africa and Asia. Its grain is richer in protein, fat and minerals than other major cereals. The parasitic weed Striga hermonthica (Del.) Benth ... -
Potential of novel phytoecdysteroids isolated from Vitex doniana in the treatment depression: Involvement of monoaminergic systems
(Elsevier, 2014-12-01)Vitex doniana Sweet (Verbanaceae) is used in traditional African medicine for the treatment of neurological disorders including depression. In our previous studies, three new phytoecdysteroids were isolated from methanol ... -
Antioxidant activities oftriacontanyl-E-cinnamoatesmetabolites from Caesalpinia volkensii root bark extracts
(Research gate, 2017)Natural antioxidants have been reported to prevent oxidative damage caused by free radicals generated during biochemical processes and thus useful in prevention of several degenerative diseases. The present study evaluated ... -
Global Energy Perspective
(Springer, Cham, 2016)“Energy is everywhere in different forms and it is needed by everyone and yet it is not always available for everybody. If you have it, you must protect it. If you do not have it, you must get it at any cost. Which other ... -
Isolation of a new β-carboline alkaloid from aerial parts of Triclisia sacleuxii and its antibacterial and cytotoxicity effects
(Taylor & Francis, 2017-03-04)A new β-carboline alkaloid named sacleuximine A (1) together with known compounds palmatine (2), isotetrandrine (3), trans-Nferuloyltyramine (4), trans-N-caffeoyltyramine (5), yangambin (6), syringaresinol (7), sesamin ... -
Cyclooxygenase inhibitory compounds from Gymnosporia heterophylla aerial parts
(Elsevier, 2017-06-01)Gymnosporia heterophylla (Celastraceae) is an African medicinal plants used to treat painful and inflammatory diseases with partial scientific validation. Solvent extractions followed by repeated chromatographic ... -
Analgesics from Lonchocarpus eriocalyx Harms
(Islamic Azad University, Shahrood Branch Press,, 2018-12-15)Four lupane-type terpenoids, namely lupeol (1), friedelin (2), stigmasterol (3), and stigmasterol-3-O-glucoside (4) were isolated from the ethyl acetate extract of leaves of Lonchocarpus eriocalyx Harms. These compounds ... -
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 ... -
Energy Resources in East Africa
(Springer, Cham, 2015)When talking about East Africa, traditionally this refers to the states of Kenya, Uganda and Tanzania with a combined population of over 120 million people in 2014. The three countries have a long history of association ... -
Technology Options for the Built Environment in Kenya: Dye- Sensitized and Amorphous Silicon Photovoltaics for Application in NZE Buildings
(Bentham Science Publishers Ltd., 2017)Background The performance of a Dye-Sensitized Solar Module (DSSM) has been investigated under different outdoor air mass (AM), irradiance intensity and temperature conditions in Wajir, Kitui, Vihiga and Kajiado Counties ... -
Effect of Reverse Bias on Dye-Sensitized Technology: Lessons for Application in PV-Integrated Textile Fabric Designs Useable in Wajir, Vihiga, Kitui and Kajiado Counties in Kenya
(Journal of Technology Innovations in Renewable Energy, 2018)This paper reports on the effect of reverse bias (RB) on dye-sensitized solar cells (DSSCs) that were investigated outdoor in Wajir (1o4450 North, 40o 4 8 East), Vihiga (35o0 East, 0o15 North), Kitui (3o 0 South, 37o 50 ... -
Nitrogen Doping of Hexagonal and Cubic Ge2Sb2Te5 Nanocrystals: An Ab Initio Study
(World Scientific Publishing Company, 2018)The effect of nitrogen doping on the structural, electronic and optical properties of hexagonal and cubic Ge2Sb2Te5 (GST) has been investigated from first principles. The nitrogen content was set to 10 at.% and 25 at.%, ... -
Characteristics of psychiatric in-patients who engage in assualtive behaviour in Mathari Hospital, Nairobi
(University if Nairobi Research archive, 1991)Literature on assaultive behaviour by psychiatric in patients was reviewed. A total of 142 violent incidents perpetrated by 68 males and 74 female patients were studied over a period of 3 months. Of the total incidents of ... -
The benefits and challenges emanating from community policing in Kenya: A Criminological Perspective
(International Journal of Innovation and Scientific Research, 2014)Community policing is an integral component in ensuring that there is no insecurity in the community. More so, the Kenyan government in the Kibaki regime introduced the concept of community policing which was seen as ... -
Demystifying the Menstruation Process among the Kenyan Girl-Child “A Period of Shame”: A SocioCultural Perspective
(International Journal of Science and Research (IJSR), 2014)This paper provides a critical review of the challenges faced by the girl child during menstruation period. It provides an analysis of various literatures based on these challenges and thus focuses on the Kenyan girl ... -
A Critical Overview of the Kenyan Prisons System: Understanding the Challenges of Correctional Practice
(International Journal of Innovation and Scientific Research, 2014)Kenya has been widely criticized for its on-going abuse of human rights and corruption in government administration. Moreover, the prison system in Kenya has been termed to be dilapidated since they were adopted from ...