ABSTRACT A total of 660 discrete jumps in the rotation frequency (ı) and the spin-down rate (ıı) of about 140 pulsars were studied. Out of the 660 discrete jumps, 394 were classical glitches (the so-called macroglitches) and 266 were microglitches. The objects are grouped into normal radio pulsars, anomalous x-ray pulsars and recycled millisecond pulsars. A bimodal distribution was observed in many of the pulsar glitch parameters, namely the discrete absolute fractional jumps in the rotat...
ABSTRACT A study was conducted along the Great Ruaha River (GRR) at Ruaha National Park (RNP) for a period of two months (November to December 2013) with the main aim of assessing the effects of Hippopotamus amphibious vectored subsidies on the chemistry of river ecosystems and the ecology of aquatic resident within these systems. The study was done by measuring river water nutrients, physical water chemistry parameters, and stable isotope analysis of aquatic consumers. Study sites were iden...
ABSTRACT The study area is bounded by latitudes 5027’N and 5034’N, and longitudes 7025’E and 7035’E. It falls within the Northern Niger delta Basin. The aim of this present study is to evaluate the hydrocarbon potentials of the sediments in the area, determine their age and environment of deposition. To achieve this aim, geochemical analysis (TOC and Rock-Eval) and Palynological studies were carried out on fifteen (15) samples. Results from the analysis indicates that the total organi...
Table of Contents Certification . . . Dedication r . . . Acknowledgement r . Abstract . . . . . . L i s t of Figures . . List of Tables .. . Table of Contents .. Introduction Importance of t h e River . . Niger Possible Sources of P u l l u t i o n Xeed for Study . . Objective . . . . L i t e r a t u r R~ ev iew Experiment a1 Study Area Sampling Poi-nts Sampling . . Analysis .. Temperature Conductivity pH .. 0. Colour . .
EXTENDED ABSTRACT Commercial cereal-based complementary foods (CBCF) for infant porridge are increasingly produced and sold in developing countries including Tanzania. A crosssectional study was conducted to determine the safety and quality of commercial cerealbased complementary foods produced and marketed in Mwanza region. Twenty differently formulated cereal-based complementary food products (CBCFs) from 20 processors were purchased from supermarkets and retail shops in Mwanza region. Pro...
ABSTRACT The purpose of this study is to investigate the structure, pattern and problems of yam production and marketing in Benue State, Nigeria. The specific objectives are to: examine the socioeconomic characteristics of yam farmers and the volume of yam production in Benue State. To examine the socio-economic characteristics of yam traders and the structure and pattern of yam marketing. To investigate the contribution of the middlemen and yam marketing associations towards marketing of ya...
ABSTRACT Novel methods for rapid diagnosis of tuberculosis (TB) are urgently needed to complement the widely used smear microscopy in low income settings. Trained TB detection rats offer a promising tool for rapid diagnosis of TB in resource limited settings. The Mycobacterium tuberculosis (Mtb) specific volatile compounds detected by trained Cricetomys gambianus rats in sputum of TB patients are unknown. It is also not known whether rats detect odour signals from other mycobacteria and micr...
ABSTRACT The idea of pool testing originated from Dorfman during the World War II as an economical method of testing blood samples of army inductees in order to detect the presence of infection. Dorfman proposed that rather than testing each blood sample individually, portions of each of the samples can be pooled and the pooled sample tested first. If the pooled sample is free of infection, all inductees in the pooled sample are passed with no further tests otherwise the remaining portions o...
ABSTRACT Chloroquine (CQ) drug was replaced in 1998 by Sulfadoxine - Pyrimethamine (SP) and later Artemisinin Based Combination therapy (ACT) as a first-line treatment of uncomplicated malaria in Kenya. This was due to development of resistance to CQ in Plasmodium falciparum Welch, 1897 malaria parasite. This study set out to determine the prevalence of the CQ resistance in malaria endemic Tiwi and Mbita towns of Kenya. Blood sample were collected from out-patient candidates with uncomplicat...
ABSTRACT Rapid human population growth, increased demand for food supplies and intensified land use has led to reduced crop rotation and hence reduction of soil fertility. The decline in soil fertility has in turn intensified the extent of Striga infestation, causing the parasite to become a threat to food production. The Striga species decimates tropical crops such as maize, sorghum, millet, rice and cowpeas. Maize is specifically attacked by Striga hermonthica. In this study, biochemical m...
ABSTRACT Shortage of food in the world today has resulted from changes in agricultural land use practices among other factors including climate change, population growth and urbanization. In Kenya, over the past four decades there has been reducing number of people practicing agriculture in the country. Though agriculture is the main economic activity in the country, the increasing population and human settlement into the agricultural regions has led to the sub-division of the rural agricult...
ABSTRACT The Universal Declaration of Human Rights and International Convention on Economic and Social Cultural Rights underpin freedom from hunger and dignified lives for all. The study aimed at developing an innovative methodology for assessment of realization of the right to adequate food at household level and its validation; investigation of realization of the right to adequate food and its influence on food security, perception of rights to adequate food among pastoral and small farm h...
ABSTRACT Molecular characterization and pathogenicity of two isolates of Trypanosoma brucei rhodesiense, one resistant to melarsoprol and the other sensitive to melarsoprol were investigated in Swiss white mice. The two trypanosome populations had been isolated from sleeping sickness patients in Uganda. The study aimed at investigating whether there are any molecular and pathogenesis differences between the two isolates. Each form of parasite was inoculated into eighteen mice at 104 trypanos...
ABSTRACT Vegetable oils are triglycerides extracted from plants. Deep frying is one method which involves submerging the food in hot oil. When this oil is overused it undergoes a series of chemical reactions which may affect human health. This has made it important to study the oxidative stability of selected vegetable oils as relates to the different types of food fried. The main objective was to determine the relative thermal oxidative stability of the palm, corn, peanut, soybean, and sunf...
ABSTRACT Polyethylene (PE) is a polymer of ethylene (ethene) used in the manufacture of packaging bags. The considerable growth in use is due to the beneficial properties it has over other alternatives. These include, extreme versatility, it is light, extreme durability, resistance to chemicals, water and impact, good hygiene properties for food packaging, excellent thermal and electrical insulation properties and relatively inexpensive. However PE disposal is a challenge, resulting in the u...