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Now showing items 111-120 of 237
Phytochemical screening of Dierama cupuliflorum Klatt. (Iridaceae)
(2014)
Background: Plants continue to play a vital role in their therapeutic value. This is because of the vast secondary metabolites that many of them produce. These natural products have been utilised as single or in combination ...
Recent Progress and Challenges in Combating the HIV/AIDS Epidemic: A Review
(University of Nairobi, 2014-01)
The human immunodeficiency virus (HIV), the virus that causes the acquired immune deficiency syndrome (AIDS) has for many years devastated lives and still continues to do so in the present day. Reducing the spread of ...
Yield Performance of Potato Seed Tubers After Storage in a Diffuse Light Store
(University of Nairobi, 2014)
An on-farm trial was carried out at KARI (Tigoni) and in Nyandarua County in central Kenyan highlands, to determine the yields of some common potato cultivars following storage in a diffuse light store (DLS) for eight ...
Determination of damage threshord of gassava green (acari: tetranychidae) on different cassava varieties
(University of Nairobi, 2014)
6α-Hydroxy-α-toxicarol and (+)-tephrodin with antiplasmodial activities from Tephrosia species
(Elsevier, 2014)
The CH2Cl2/MeOH (1:1) extract of the roots of Tephrosia villosa showed good antiplasmodial activity against the chloroquine-sensitive (D6) and chloroquine-resistant (W2) strains of Plasmodium falciparum with IC50 values ...
A Stochastic Model for Planning a Compartmental Education System and Determining Stable Student Population Distribution
(2014)
In most developing countries, populations grow exponentially thus directly
impacting on student populations in education systems. In an ecosystem, a stable predator/prey
population ensures the survival and sustenance of ...
The seismicity in Kenya (East Africa) for the period 1906–2010: A review
(University of Nairobi, 2014-01)
Kenya has had a seismic station since 1963 as part of the World Wide Standardized Seismograph Network (WWSSN). In 1990, the University of Nairobi in collaboration with GeoForschungsZentrum (GFZ) started to build up a local ...
Typhlodromalus aripode leon (acari: phytoseiidae) development and reproduction on major cassava pests at different temperatures and humidities: an indication of enhanced mite resilience
(2014)
Both prey type and abiotic conditions limit performance of phytoseiid predators. The exotic predatory
mite, Typhlodromalus aripo developed and reproduced when maintained on eggs and active stages of the cassava ...
Dynamics of chlorpyrifos in water from upper Tana River in Kenya
(University of Nairobi, 2014)
Water covers 70.9% of the Earth's surface (WFB, 2008), and is vital for all known forms of life (WFB, 2008). The specific contaminants leading to pollution in water include a wide spectrum of chemicals like Persistent ...
Two polymethoxylated flavonoids with antioxidant activities and a rearranged clerodane diterpenoid from the leaf exudates of Microglossa pyrifolia
(University of Nairobi, 2014-12)
Three novel compounds; two polymethoxylated flavonoids, 5,7,4′-trihydroxy-3,8,3′,5′-tetramethoxyflavone (1), 5,7,3′-trihydroxy-3,8,4′,5′-trimethoxyflavone (2), and a clerodane diterpenoid; 8-acetoxyisochiliolide lactone ...