ABSTRACT This study sought to find out undergraduate first year chemistry students’ ability to draw and name the structural formula of cyclic hydrocarbons using the molecular models. The study adopted a case study design which used action research approach. A sample size of 103 respondents participated in the study. Purposive sampling technique was used to select the respondents. The instruments used for data collection were exercises, tests and questionnaires. This was supplemented with o...
ABSTRACT Cryptosporidium and enterohaemorrhagic (EHEC) Escherichia coli O157:H7 are two important pathogens in humans among other common representative zoonotic pathogens carried by animals especially cattle and are discharged through their faeces into the environment. With the increasing practice of urban farming, the risk of transmission of these pathogens to humans is increased. The study aimed at determining the public health risks associated with integrated urban farming using Non-Sorbi...
ABSTRACT This research has been done in Mvomero District to examine the effects of land use plan on farmers-pastoralists conflict and its implication on food production at the household. Specifically, the study examining people’s attitude towards land use plan, assessing effects of land use plan on farmers-pastoralists land conflict between and to examining the effects of land use plan programme on household food production. A cross section research design was adopted. Systematic random sam...
Abstract: Climate change continues to increase the intensity, frequency and impacts of weather and climate extremes. This work uses bias-adjusted Coupled Model Intercomparison Project Phase six (CMIP6) model datasets to investigate the future changes in temperature extremes over Mediterranean (MED) and Sahara (SAH) regions. The mid- (2041–2070) and far-future (2071–2100) are studied under two Shared Socioeconomic Pathways: SSP2-4.5 and SSP5-8.5 scenarios. Quantile mapping function greatl...
ABSTRACT The study analyzed the use of fish farming technologies by fadama III fish farmers in Imo State. The specific objectives included to: describe the socioeconomic characteristics of fish farmers under Fadama III in the state; identify sources of information of the fishery technologies to the farmers; ascertain the fishery technologies used under the Fadama III in the study area; determine the level of use of fishery technologies in Imo State; determine effects of use of fishery techno...
Abstract For years, Ghana has been confronted with illegal small-scale mining commonly known as galamsey. It is alleged that cocoa farmers are relinquishing their farmlands for galamsey, however, as many people in the cocoa farming communities depend on cocoa farming as their primary source of income, it raises questions as to why farmers would want to abandon their farms for galamsey. As a result, this thesis is aimed at investigating the motivations for galamsey and how the practice impacts...
ABSTRACT This study assessed dry season farming profitability and examines farming practices and their influence on the environment. Dry season farming practices identified from the literature were irrigation practices, land preparation, tillage practices and use of agrochemicals. A cross sectional design was adopted as quantitative data was collected from respondents. Five (5) communities along the White Volta River in the Bawku West District were purposively selected based on their proximit...
ABSTRACT Chlorine in drinking water, surface or underground water is a concern of public health. This is because chlorine reacts with nitrogen containing organic compounds to form polychlorinated complexes that are carcinogenic. However, chlorine is dissolved in water for the sake of disinfecting with a view to killing pathogens in water to make it safe for human consumption. After that initial addition, some chlorine is left in the water and continues with the chlorination process of the org...
ABSTRACT Effects of heavy metals on the Air Pollution Tolerance Indices (APTI) of five medicinal plants growing within quarry site in Ishi-Agu, Ebonyi State, Nigeria were studied. Following laboratory analysis of the leaves of the plants for metal load and four biochemical parameters of APTI computation. The metal load was determined by the Atomic Absorption spectrophotometric method, while the ascorbic acid was determined by the titremetric method, leaf extract pH by the electro-chemical te...
Solar photovoltaic (PV) technology represents a promising method to prevent dangerous global climate change, however full solar penetration demands substantial surface areas, possibly encroaching on arable land. To avoid repeating the mistakes of previous attempts to convert agricultural land to energy, arable land currently used for crops with known health hazards can be considered for conversion. Tobacco is the leading cause of avoidable death globally, and despite increasingly stringent co...
Abstract: Phlebotomine sand flies are vectors ofLeishmaniaparasites that causeleishmaniases. Both sexes of sand flies feed on plants primarily for sugars, althoughthe chemical cues that mediate attraction to host plants remain largely unknown.Previously, using coupled gas chromatography-mass spectrometry, the authors identifiedseveral volatile organic compounds (VOCs) common to preferred host plants forselected Afrotropical sand flies from the Fabaceae family. Of the identified volatiles,the...
ABSTRACT The aim of this study was to investigate the possibility of removing acids from Sudanese heavy crude oil which is characterized by acid number more than 7 mg KOH/g by liquid-liquid extraction technique. In this work polar organic solvents (methanol and ethanol) was used. The processes were applied at different temperatures and organic solvents volumes. The optimum solvent, solvent ratio and temperature were determined. The physical and chemical properties of crude oil sample were te...
ABSTRACT Inorganic feed additives are commonly used in small ruminant production to promote growth. However, the problem of bioaccumulation of chemical residues in animals fed inorganic feed additives has necessitated the search for organic alternatives such as Fossil Shell Flour (FSF). There is dearth of information on the use of fossil shell flour as a feed additive in the diet of small ruminants. Hence, growth performance of West African Dwarf (WAD) sheep fed diets supplemented with FSF we...
ABSTRACT Crocodile products have become popular in the world. In effect, they have attracted the attention of people in many countries including Tanzania. However, the farming practice comprises many activities and time involved before derivation of the commercial products. This study aimed at gaining insight on the economics of Nile crocodile farming in Bagamoyo, Tanzania. The objectives were to determine the reproductive rates of Nile crocodiles, products extracted from the crocodile, cost...
ABSTRACT This study assessed dry season farming profitability and examines farming practices and their influence on the environment. Dry season farming practices identified from the literature were irrigation practices, land preparation, tillage practices and use of agrochemicals. A cross sectional design was adopted as quantitative data was collected from respondents. Five (5) communities along the White Volta River in the Bawku West District were purposively selected based on their p...