Faculty of Science & Technology (FST): Recent submissions
Now showing items 161-180 of 4283
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A microsporidian impairs Plasmodium falciparum transmission in Anopheles arabiensis mosquitoes
(University of Nairobi, 2020)A possible malaria control approach involves the dissemination in mosquitoes of inherited symbiotic microbes to block Plasmodium transmission. However, in the Anopheles gambiae complex, the primary African vectors of ... -
Expansions of chemosensory gene orthologs among selected tsetse fly species and their expressions in Glossina morsitans morsitans tsetse fly
(University of Nairobi, 2020)Tsetse fly exhibit species-specific olfactory uniqueness potentially underpinned by differences in their chemosensory protein repertoire. We assessed 1) expansions of chemosensory protein orthologs in Glossina morsitans ... -
Genomic and Pathogenic Characteristics of Virulent Newcastle Disease Virus Isolated from Chicken in Live Bird Markets and Backyard Flocks in Kenya
(University of Nairobi, 2020)Newcastle disease (ND) causes significant economic losses in the poultry industry in developing countries. In Kenya, despite rampant annual ND outbreaks, implementation of control strategies is hampered by a lack of adequate ... -
Changes in Phytochemical Content During Different Growth Stages in Tubers of Five Varieties of Potato (Solanum Tuberosum
(University of Nairobi, 2018)Potato (Solanum tuberosum L.) synthesizes a variety of bioactive metabolites including phenolic compounds and glycoalkaloids that protects against insects and diseases, and may influence its nutritional quality. ... -
Handling missing data in modelling quality of clinician-prescribed routine care: Sensitivity analysis of departure from missing at random assumption
(University of Nairobi, 2020)Missing information is a major drawback in analyzing data collected in many routine health care settings. Multiple imputation assuming a missing at random mechanism is a popular method to handle missing data. The missing ... -
Examining which clinicians provide admission hospital care in a high mortality setting and their adherence to guidelines: an observational study in 13 hospitals
(University of Nairobi, 2020)Background: We explored who actually provides most admission care in hospitals offering supervised experiential training to graduating clinicians in a high mortality setting where practices deviate from guideline ... -
Prevalence, intensity and associated risk factors of soil-transmitted helminth and schistosome infections in Kenya: Impact assessment after five rounds of mass drug administration in Kenya
(University of Nairobi, 2020)Background: In Kenya, over five million school age children (SAC) are estimated to be at risk of parasitic worms causing soil-transmitted helminthiasis (STH) and schistosomiasis. As such, the Government of Kenya launched ... -
Methodological rigor of prognostic models for predicting in-hospital paediatric mortality in low- and middle-income countries: a systematic review protocol
(University of Nairobi, 2020)Introduction: In low- and middle-income countries (LMICs) where healthcare resources are often limited, making decisions on appropriate treatment choices is critical in ensuring reduction of paediatric deaths as well as ... -
Prognostic models for predicting in-hospital paediatric mortality in resource-limited countries: a systematic review
(University of Nairobi, 2020)Objectives: To identify and appraise the methodological rigour of multivariable prognostic models predicting in-hospital paediatric mortality in low-income and middle-income countries (LMICs). Design: Systematic review ... -
The role of diversity, reserve margin and system structure on retail electricity tariffs in Kenya
(University of Nairobi, 2020)Electricity bills in Kenya have been an issue of concern to electricity consumers in the recent past. Highly volatile oil prices and unprecedented weather fluctuations have acted as significant shocks for electricity ... -
Levels of PM 10 and PM 2.5 and Respiratory Health Impacts on School-Going Children in Kenya
(University of Nairobi, 2020)Background: The respiratory system of children is vulnerable to exposure to particulate matter (PM) with a diameter of less than 2.5 and 10 μm (PM2.5 and PM10) or even lower. Objective: This study assessed PM10 and PM2.5 ... -
Analysis of p67 allelic sequences reveals a subtype of allele type 1 unique to buffalo-derived Theileria parva parasites from southern Africa
(University of Nairobi, 2020)East Coast fever (ECF) and Corridor disease (CD) caused by cattle- and buffalo-derived T. parva respectively are the most economically important tick-borne diseases of cattle in the affected African countries. The p67 gene ... -
Anti-inflammatory steroidal sapogenins and a conjugated chalcone-stilbene from Dracaena usambarensis Engl
(University of Nairobi, 2020)Four new steroidal sapogenins, dracaenogenins CF (1-4), a new conjugated chalcone-stilbene, 3''-methoxycochinchinenene H (5) together with eight known compounds namely, (25S)-spirosta-1,4-dien-3-one (6), trans-resveratrol ... -
Anti-inflammatory norhopanes from the root bark of Fagaropsis angolensis (Engl.) H.M.Gardner
(University of Nairobi, 2020)Two new norhopane derivatives namely 3β,6β,22-trihydroxy-7β,11α-di[(4-hydroxybenzoyl)oxy]-21αH-24-norhopa-4(23)-ene (1) and 3β,6β,22-trihydroxy-7β-[(4-hydroxybenzoyl)oxy]-21αH-24-norhopa-4(23)-ene (2) together with two ... -
First detection of Theileria parva in cattle from Cameroon in the absence of the main tick vector Rhipicephalus appendiculatus
(University of Nairobi, 2020)A major risk factor for the spread of livestock diseases and their vectors is the uncontrolled transboundary movement of live animals for trade and grazing. Such movements constrain effective control of tick-transmitted ... -
Movement reveals reproductive tactics in male elephants
(University of Nairobi, 2020)Long-term bio-logging has the potential to reveal how movements, and hence life-history trade-offs, vary over a lifetime. Reproductive tactics in particular may vary as individuals' trade-off current investment versus ... -
Identity and authentication Model for Bring your own Device in Organizations
(University of Nairobi, 2020)The use of personal mobile devices for work related assignments and vice versa has become a common trend in business today. With escalated developments in technology, there has been a significant shift on how organizations ... -
Enteric pathogens from water, hands, surface, soil, drainage ditch, and stream exposure points in a low-income neighborhood of Nairobi, Kenya
(University of Nairobi, 2020)Child exposure to fecal-oral pathogens occurs through several transmission pathways. However, the relative importance of different exposure points for pathogen transmission both inside and outside households is not well ... -
The biology and control of the greater wax moth, galleria mellonella
(UoN, 2017)The greater wax moth, Galleria mellonella Linnaeus, is a ubiquitous pest of the honeybee, Apis mellifera Linnaeus, and Apis cerana Fabricius. The greater wax moth larvae burrow into the edge of unsealed cells with pollen, ... -
Implications of a Late-Time Interaction in Vacuum Dark Energy Models
(Africa Journal of Physical Sciences, 2019-02-28)Recently, Wang et al. (2014) and Salvatelli et al. (2014) have reported results showing that a late-time interaction between cold dark matter (CDM) and vacuum dark energy is favoured by current cosmological datasets and ...