Faculty of Science & Technology (FST): Recent submissions
Now showing items 1021-1040 of 4283
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Larvicidal Activities Of The Stem Bark Extract And Rotenoids Of Millettia Usaramensis Subspecies Usaramensis On Aedes Aegypti L. (diptera: Culicidae)
(University of Nairobi, 2014)The dichloromethane/methanol (1:1) extract of the stem bark of Millettia usaramensis subspecies usaramensis was tested for its larvicidal activity against the 4th instar Aedes aegypti larvae and demonstrated activity with ... -
Impact Of Permethrin-treated Bed Nets On Entomologic Indices In An Area Of Intense Year-round Malaria Transmission
(University of Nairobi, 2003-04)The effect of permethrin-treated bed nets (ITNs) on malaria vectors was studied as part of a large-scale, randomized, controlled trial in western Kenya. Indoor resting densities of fed Anopheles gambiae s.l. and An. funestus ... -
Use of pharmacological agents to implicate a role for phosphoinositide hydrolysis products in malaria gamete formation
(University of Nairobi, 1993-11)The kinetics of phosphoinositol 4,5 bisphosphate hydrolysis products in activated Plasmodium falciparum gametocytes suggests a role for inositol trisphosphate [Ins(l,4,5)P3] and diacylglycerol (DAG) in the signal transduction ... -
3-Oxo-14α,15α-epoxyschizozygine: A new schizozygane indoline alkaloid from Schizozygia coffaeoides
(University of Nairobi, 2014-07)The stem bark extract of the Schizozygia coffaeoides (Apocynaceae) showed moderate antiplasmodial activity (IC50 = 8–12 μg/mL) against the chloroquine-sensitive (D6) and chloroquine-resistant (W2) strains of Plasmodium ... -
Temporal Detection Patterns of the African Clawless Otter Aonyx capensis (Schinz, 1821) in the Laikipia Plateau of Central Kenya
(University of Nairobi,, 2014)The detection time of the African clawless Otter along its habitat was studied from January 2013- April 2013 over 720 trap nights. Camera traps were set up in six sites of different altitudes along the riparian area of the ... -
Plasmodium berghei ANKA: Selection of resistance to piperaquine and lumefantrine in a mouse model
(University of Nairobi, 2009)We have selected piperaquine (PQ) and lumefantrine (LM) resistant Plasmodium berghei ANKA parasite lines in mice by drug pressure. Effective doses that reduce parasitaemia by 90% (ED90) of PQ and LM against the parent line ... -
Wax digestion by Black-throated Honey-guides Indicator indicator
(University of Nairobi, 1988-10)The honey-guides (Indicatoridae) are brood parasites and specialist feeders on wax; the larger species obtain wax from bees' nests and the smaller ones from scale-insects or fruit (Friedmann 1955, Diamond 1985). The ability ... -
Lithological Influences on Occurrence of High-Fluoride Waters in The Central Kenya Rift
(University of Nairobi, 2013)Within the East African rift, groundwater recharge results from the complex interplay of geology, land cover, geomorphology, climate and on going volcano-tectonic processes across a broad range of spatial and temporal ... -
Adaptation to droughts: Developing community based sand dams in Kitui, Kenya.
(University of Nairobi, 2006)The ADAPTS program aims at finding local level adaptation strategies in water policies that, apart from alleviating impacts from climate change, also assure food production, sustain people’s livelihoods and ultimately ... -
Toward a holistic and risk-based management of european river basins
(University of Nairobi, 2009)The European Union Water Framework Directive (WFD) requires a good chemical and ecological status of European surface waters by 2015. Integrated, risk-based management of river basins is presumed to be an appropriate ... -
Community participation in the rehabilitation of a sand dune environment in Kenya
(University of Nairobi, 2009)This study aims to document various community efforts in land rehabilitation and assess their potential. Data were captured using interviews and focus group with 150 community members. A public participation index was used ... -
Phenology of Avicennia marina (Forsk.) Vierh. in a Disjunctly-zoned Mangrove Stand in Kenya
(University of Nairobi, 2010)Avicennia marina in Gazi Bay, Kenya, displays a disjunct zonation pattern across the intertidal zone with a seaward and a landward A. marina fringe. Earlier studies revealed significant differences in its vegetation ... -
Key elements of fisheries management on Lake Victoria
(University of Nairobi, 2002)The fisheries of Lake Victoria have always been dynamic and the relevant authorities have continually tried to manage them. During the second half of the last century, numerous changes took place and fisheries managers had ... -
Identification Of A Synthetic Peptide Inducing Cross-reactive Antibodies Binding To Rhipicephalus (boophilus) Decoloratus, Rhipicephalus (boophilus) Microplus, Hyalomma Anatolicum Anatolicum And Rhipicephalus Appendiculatus Bm86 Homologues
(University of Nairobi, 2009)The BM86 antigen, originally identified in Rhipicephalus (Boophilus) microplus, is the basis of the only commercialized anti-tick vaccine. The long-term goal of our study is to improve BM86 based vaccines by induction of ... -
Vegetative and reproductive phenological traits of Rhizophora mucronata Lamk. and Sonneratia alba Sm
(University of Nairobi, 2013)Mangrove phenology is important in understanding the past, present and future response of mangrove species to impacts of climate change. Our study is the first long term direct observation of the phenology of Rhizophora ... -
Reserves as oceanic islands: lessons for conserving some East African montane forests
(University of Nairobi, 2008-04)Current models, applying equilibrium theory to reserve planning, all treat reserves as land-bridge islands. Recent evidence suggests that most forests in East Africa, especially montane ones, are more accurately regarded ... -
Dynamic ecology of Aldabran seabird communities
(University of Nairobi, 1979-07)The characteristics of the present seabird community of Aldabra are described, and compared briefly with others in the tropics. By comparison with Pacific Ocean communities, Aldabra is deficient especially in petrels and ...