Faculty of Science & Technology (FST): Recent submissions
Now showing items 661-680 of 4283
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Black cohosh, a menopausal remedy, does not have estrogenic activity and does not promote breast cancer cell growth
(2003)Black cohosh is an increasingly popular alternative to estrogen replacement therapy for the relief of menopausal symptoms, primarily hot flushes. However, an important consideration for long-term therapy is potential ... -
Radiation Acts on the Microenvironment to Affect Breast Carcinogenesis by Distinct Mechanisms that Decrease Cancer Latency and Affect Tumor Type
(2011)Tissue microenvironment is an important determinant of carcinogenesis. We demonstrate that ionizing radiation, a known carcinogen, affects cancer frequency and characteristics by acting on the microenvironment. Using a ... -
Proliferation of estrogen receptor-α-positive mammary epithelial cells is restrained by transforming growth factor-β1 in adult mice
(2005)Transforming growth factor (TGF)-β1 is a potent inhibitor of mammary epithelial proliferation. In human breast, estrogen receptor (ER)-α cells rarely co-localize with markers of proliferation, but their increased frequency ... -
Leaf compounds in potential plantation species of Aloe in Kenya
(1997)Many Aloe species are valued for the healing properties associated with the leaf tissues, a factor that has led to over-exploitation of natural populations and endangerment of some local Kenyan species. While trade in ... -
Assessment of Molluscicidal, Cercericidal and Miracicidal Activities of Crude Extracts of Azadirachta indica and Entada leptostachya
(2013)Schistosomiasis infections in humans depend absolutely on the presence of intermediate host. Control of the intermediate host disrupts the cycle of schistosomes stopping transmission of schistosomiasis. Synthetic molluscicides ... -
Leveraging cellphones for wayfinding and journey planning in semi-formal bus systems: Lessons from Digital Matatus in Nairobi
(University of Nairobi, 2015-05-21)For many cities in the developing world, public transit consists mainly of semi-formal mini-buses (paratransit). However, little to no digital information is typically available on routes, bus stops, passenger boarding, ... -
Mixed model analysis for the estimation of components of genetic variation in lamb weaning weight
(2011)This case study continues the analysis of differences in weaning weight between indigenous genotypes of sheep which was started in Case Study 3. In the previous case study a model containing fixed effects for lamb genotype, ... -
Properties of a factor in eland plasma that inhibits transformation of bloodstream-form Trypanosoma brucei brucei
(2001)Fresh plasma from the African eland, Taurotragus oryx, contains a factor that inhibits the transformation of bloodstream-form Trypanosma brucei brucei into procyclic (midgut) forms. Heating of the plasma at 42, 50 and 60 ... -
Implications of Charcoal Briquette Produced by Local Communities on Livelihoods and Environment in Nairobi- Kenya
(2013)The residents of Nairobi, Kenya, use 700 tonnes of charcoal per day, producing about88 tonnes of charcoal dust that is found in most of the charcoal retailing stalls that is disposed of inwater drainage systems or in black ... -
Greenhouse Gas and Particulate Emissions and Impacts from Cooking Technologies in Africa
(2003)In much of Africa, the largest fraction of energy consumption occurs within the residential sector and is derived primarily from woodfuels burned in simple stoves with poor combustion characteristics. Many of the products ... -
Influence of diet patterns on fuelwood consumption in Kenyan boarding schools and implications for data and energy policies
(2003)A study was devised to inquire into the influence of diet patterns in Kenyan boarding schools on the fuelwood consumption rates in these institutions and the implications of the findings on national data and energy policies. ... -
Institutional Mapping for Climate Change Adaptation in Eastern Africa
(2008)The Eastern African region, including the Horn of Africa, is highly vulnerable to climate change and several of its major sectors that significantly contribute to the sub-region’s economies will be severely affected. ...