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Now showing items 11-20 of 60
Chemical bond approach to optical properties of some flash evaporated Se100 −XSbX chalcogenide alloy
(EDP Sciences, 2012)
Amorphous thin films of Se100−XSbX (X = 1, 5, 10, 15 and 20) were synthesized by flash
evaporation of the premelt quenched bulk samples. The optical properties were investigated from spectrophotometric
measurements in the ...
Adoption of Open Source Software by Organizations – A Framework for Kenya
(2012-12)
Open Source Software (OSS) has emerged as an alternative to
Closed Source Software in many fields of software usage.
However, how and why OSS software is being adopted and
implemented within organizations in Kenya is ...
Application of Dye-Sensitized Solar Cell Technology in the Tropics: Effects of Radiation Intensity and Temperature on DSSC Performance
(2012)
Effects of radiation intensity and temperature on the
performance of a dye-sensitized solar module (DSSM) have been
investigated in a tropical area in Nairobi, Kenya. Outdoor
measurements were performed on cloudless ...
Spatial coherence and potential predictability assessment of intraseasonal statistics of wet and dry spells over Equatorial Eastern Africa
(Royal Meteorological Society, 2012)
The aim of this study was to derive components of the intraseasonal rainfall variations from the daily rainfall
in the Equatorial Eastern Africa region and assess their spatial coherence, a pointer to their potential ...
High-throughput screening and sensitized bacteria identify an M. tuberculosis dihydrofolate reductase inhibitor with whole cell activity.
(2012)
Mycobacterium tuberculosis (Mtb), the causative agent of tuberculosis, is a bacterial pathogen that claims roughly 1.4 million lives every year. Current drug regimens are inefficient at clearing infection, requiring at ...
OSI-930 analogues as novel reversal agents for ABCG2-mediated multidrug resistance
(2012)
OSI-930, a dual c-Kit and KDR tyrosine kinase inhibitor, is reported to have undergone a Phase I dose escalation study in patients with advanced solid tumors. A series of fifteen pyridyl and phenyl analogues of OSI-930 ...
Recurrent somatic TET2 mutations in normal elderly individuals with clonal hematopoiesis
(2012)
Abstract
Aging is characterized by clonal expansion of myeloid-biased hematopoietic stem cells and by increased risk of myeloid malignancies. Exome sequencing of three elderly females with clonal hematopoiesis, demonstrated ...
Antiparasitic and anticancer carvotacetone derivatives of Sphaeranthus bullatus.
(University of Nairobi, 2012-09)
The CH2Cl2-MeOH (1:1) extract of the aerial parts of Sphaeranthus bullatus, an annual herb native to tropical East Africa, showed activity against chloroquine sensitive D6 (IC50 9.7 microg/mL) and chloroquine resistant W2 ...
The Signaling Hypothesis: Evidence From The Nairobi Securities Exchange
(2012)
This study investigates the signaling hypothesis by testing the displacement property of dividends. The study uses Ohlson (1995; 2001) model and follows Hand and Landsman (2005) approach. The study however varies the ...
Cross-Listing and Valuation Effects: Evidence From Nairobi Securities Exchange
(2012)
The purpose of this study is to analyze the valuation effects of cross-listing. The study has conducted a univariate
analysis of the Tobin’s Q and the market-to-book ratio for the period before and after the cross-listing ...