85 | Student Researchers |
ABSTRACT
Some haemoglobins have high oxygen affinity (high-affinity) while others have low oxygen affinity (low-affinity) as exemplified in human and cat haemoglobins respectively. High-affinity haemoglobins bind organic phosphates strongly and this lowers their oxygen affinities and their CysF9[93]β sulphydryl reactivities. Low-affinity haemoglobins on the other hand, bind organic phosphates weakly, and their oxygen affinities are hardly affected. Consequently, an assumption w...
APA | 1-5 Chapters | 50 Pages |
85 | Student Researchers |
Background of the study
Biomass, particularly agricultural residues seem to be one of the most promising energy resources for developing countries (Patomsok, 2008). Rural households and minority of urban dwellers depend solely on fuel woods (charcoal, firewood and sawdust) as their primary sources of energy for the past decades (Onuegbu, 2010). Of all the available energy resources in Nigeria, coal and coal derivatives such as smokeless coal briquettes, bio-coal briquettes, and biom...
APA | 1-5 Chapters | 50 Pages |
85 | Student Researchers |
ABSTRACT
Studies of physico-mechanical and morphological properties of pure and -cellulose reinforced blends of polystyrene (PS) and poly (vinyl acetate) (PVAc) are reported in this work. The compression moulded articles of the blends of different compositions (10:90, 20:80, 30:70, 40:60, 50:50, 60:40, 70:30, 80:20 and 90:10, PS/PVAc) were tested for mechanical performance, absorption behaviour, void activity and morphological arrangements. Comparison of mechanical properties such...
APA | 1-5 Chapters | 50 Pages |
85 | Student Researchers |
ABSTRACT
This project is concerned with the development and evaluation of an atomtrapping technique for determination of heavy metals in environmental samples. Modified atom-trapping technique using fabricated nickel tube/sample holder (crucible) was employed to increase the sensitivity of a flame atomic absorption spectrometry. Basic performance data for different parameters, such as burner height and the height of the support, were studied. Different designs and ways of placing th...
APA | 1-5 Chapters | 50 Pages |
85 | Student Researchers |
Statement of Problem
The act and practice of smoking cigarette also impacts differently amongst respective societies, cultures and ecosystems but generally can be viewed under common mitigating factors(Suhrcke et al., 2006; Townsend et al., 2006; WHO, 2004; WHO, 2011a). As reported, (ASH, 2009) estimates have it that smoking prevalence within the African region will rise by as much as 39 percent by 2030. This is an uphill from a 15.8 percent in 2010 to 21.9 percent 2012 (Blecher and...
APA | 1-5 Chapters | 50 Pages |
85 | Student Researchers |
Abstract
Anaerobic biodegradation of banana leaves by cellulolytic fungus (yeast) was conducted at optimum operational conditions of concentration, temperature and pH for biogas and bioliquid production. Proximate analysis of both the fermented and unfermented substrates was carried out. Effects of nutritive additives on biogas and bioliquid production were investigated. The bioliquid generated was extracted by soxhlet extraction and, its components were separated into maltenes (sol...
APA | 1-5 Chapters | 50 Pages |
85 | Student Researchers |
STATEMENT OF PROBLEM
Human activities have led to immense pollution of our environment especially the water bodies. This is as a result of the discharge of inorganic effluents from industries directly into the environment without treatment due to the high cost of establishing or maintaining the effluent treatment plant. These effluents enter the food chain when the aquatic organisms in the water bodies adsorb/absorb them and they are then eaten by human being thereby causing several...
APA | 1-5 Chapters | 50 Pages |
85 | Student Researchers |
ABSTRACT
Two types of biodiesels (methyl esters and butyl esters) were synthesized from Cucurbita pepo, Afzelia africana and Hura crepitans seed oils using acid catalysis. Solid acid catalysts were prepared from biowastes (seed cake/shell) from the oil seeds via partial carbonization to aromatize the materials and subsequent sulfonation to introduce –SO3H group on them. Ten different solid acid catalysts (0HuSO3H, 30HuSO3H, 60HuSO3H, 90HuSO3H, 120HuSO3H, 0ASO3H, 30ASO3H, 60ASO...
APA | 1-5 Chapters | 50 Pages |
85 | Student Researchers |
2 Statement of the Problem Petroleum substances pose a threat to the environment as they negatively affect plant production and put health of people and animals at risk (Zacharyasz et al., 2012 and Kolwzan et al., 2001). They cause carcinogenic, mutagenic and toxic effects (Ribes et al., 2003, Freitag et al., 1985 and DEC, 1992). Chemicals associated with oil spillage are benzene, toluene, petroleum hydrocarbons, phenol, oil and grease, heavy metals etc. Some of these substances are volatile,...
APA | 1-5 Chapters | 50 Pages |
85 | Student Researchers |
2 Statement of the Problem
Petroleum substances pose a threat to the environment as they negatively affect plant production and put health of people and animals at risk (Zacharyasz et al., 2012 and Kolwzan et al., 2001). They cause carcinogenic, mutagenic and toxic effects (Ribes et al., 2003, Freitag et al., 1985 and DEC, 1992). Chemicals associated with oil spillage are benzene, toluene, petroleum hydrocarbons, phenol, oil and grease, heavy metals etc. Some of these substances are...
APA | 1-5 Chapters | 50 Pages |
85 | Student Researchers |
Statement of the problem
Paint industry is one of the fastest growing economies in Nigeria. The effluents its discharge has contributed a lot to the pollution of our environment because of toxic chemicals and heavy metals that are emanating from them (Körbahti and Tanyolac¸ 2009). These toxic chemicals and heavy metals end up in our rivers, dams, lakes and 5 oceans killing the aquatic lives thereby making the water unfit for drinking and domestic purposes. Conventional ph...
APA | 1-5 Chapters | 50 Pages |
85 | Student Researchers |
ABSTRACT
Soil erosion is the removal/movement of soil particles from one area to another; and one method of preventing these soil particles from eroding is by chemical stabilization (which involves altering the properties of the soil particles by adding cement, lime or any other cementing material). The aim of this study is to investigate the chemical stabilization of some soils of gully erosion-prone areas of Anambra State. Seven soil samples were collected from seven different loc...
APA | 1-5 Chapters | 50 Pages |
85 | Student Researchers |
ABSTRACT
Liquid – liquid extraction of Ni(II) Co(II) and Cu(II) ions from buffered solution into N,N1 -ethylenebis (4-propionyl-2,4- dihydro-5-methyl-2-phenyl-3H-pyrazol-3-one) imine (H2PrEtP) Schiff base as a function of pH and concentration of solution was investigated. The synergistic effect of 4-propionyl-2,4-dihydro-5- methyl-2-phenyl-3H-pyrazol-3-one (HPrP) have all been investigated and optimized. Effects of complexing species alongside anionic substances and certain mi...
APA | 1-5 Chapters | 50 Pages |
85 | Student Researchers |
Statement of the Problem
From the best of my knowledge, no systematic study has been conducted on the River within the period and the areas mentioned in this work to evaluate its suitability for agro-domestic purposes. River Niger is transboundary water, which many people in Kogi state depend on for their livelihood such as fishing, irrigation purposes, washing and doing household chores. Along the course of the Niger River particularly areas like Idah, Itobe, Shintaku and Lokoja, t...
APA | 1-5 Chapters | 50 Pages |
85 | Student Researchers |
ABSTRACT
The depletion and price fluctuations of fossil fuel in the international market have been a major source of concern in total dependence on diesel fuel hence use of biodiesel produced from vegetable oil is a good substitute or additive fuel. Studies were carried out to investigate the fuel properties of Cyperus esculentus, Colocynthus vulgaris, Sesamum indicum ethylesters, methylesters and their corresponding methyl/ethyl ester blends. Ethylesters and methylesters of these o...
APA | 1-5 Chapters | 50 Pages |
85 | Student Researchers |
ABSTRACT
The qualitative and quantitative phytochemical analyses of 50 timbers of Nigeria were carried out. The physicchemical properties such as polymeric test, phytochemical test, solubility test, proximate analyses, saponification value, iodine value, acid value and peroxide value and elemental analyses of the wood species were determined. Results showed that the range of experimental values of the chemicals as well as other physical parameters were: moisture content (9.2 –...
APA | 1-5 Chapters | 50 Pages |
85 | Student Researchers |
ABSTRACT
This study was carried out to evaluate the concentrations of heavy metals and other contaminants in the effluents from some food industries in Anambra State. Effluents from Life Breweries, Onitsha; KP beverages, Ogidi; Obisco beverages, Ogidi; Golden Vegetable Oil, Onitsha and Resource Improvement and Manufacturing Company (RIMCO Nnewi) in Anambra State were sampled for a period of eight months – four months rainy season and four months dry season – for comparis...
APA | 1-5 Chapters | 50 Pages |
85 | Student Researchers |
ABSTRACT
The production and characterization of briquettes from mixtures of coal, corn cob and rice husk has been carried out. The briquette samples were produced by blending varying compositions of coal and rice husk, also coal and corn cob at the ratios of 100:0, 80:20, 60:40, 40:60, 20:80 and 0:100 using bitumen, starch, calcium sulphate and cement as binders and calcium hydroxide as desulphurizing agent. The briquettes were produced mechanically using a manual briquetting machin...
APA | 1-5 Chapters | 50 Pages |
85 | Student Researchers |
Statement of Problem
Thermally-induced degradation of vinylidene chloride copolymers has resulted in considerable losses of polymer material during the production process. The homolysis of the C – Cl bond set up a conjugated polyene sequence, which resulted in the coloration of the copolymers, thereby making them unsuitable for use as films or inhibiting their use as barrier films in packaging applications for food and pharmaceuticals (The Dow Chemical Company, 2005). A second...
APA | 1-5 Chapters | 50 Pages |
85 | Student Researchers |
BACKGROUND OF STUDY
Plants are important to our everyday life. They provide us with food, produce oxygen that we breath and serve as raw material for many industrial products such as clothings, foot wears, building materials and in the manufacture of biofuels, dyes, perfumes, pesticides, drugs, beverages and preservatives. From medieval times, herbs have been used to flavour and preserve fermented malt liquors but only hop inflorescence is used on a commercial scale today. The hop p...
APA | 1-5 Chapters | 50 Pages |
85 | Student Researchers |
Statement of the Problem
It is now known that agricultural materials are used as animal feeds and that they contain phytochemicals. These phytochemicals serve as antibiotic principles of plants. 3 The need for a cheap, renewable, easily available and nutritive source of material as feed supplements has therefore attracted me to investigate African pear leaf, (APL) as an alternative.
Objectives of the Study
Broadly stated, the purpose of this work is to investigat...
APA | 1-5 Chapters | 50 Pages |
85 | Student Researchers |
Statement of the Problem
The industrialization act of 1976 forced the doors open for the multiplication and establishment of small and medium scale industries in Nigeria alongside residential areas. This development gave birth to industrial clusters near the homes of the industrialists. The attendant problem was the ready contamination of the environment by the processing, harvested and waste products. Multiplication of small and medium scale industries lead to mismanagement of the...
APA | 1-5 Chapters | 50 Pages |
85 | Student Researchers |
Statement of the Problem
Major problems noticed in the study area are: Lack of toilets and wastes disposal facilities Open defaecation into river water and frequent reports of diseases Increased generation and disposal of metal containing wastes into 4 waterways Leaching and decreased quality of run off waste waterf (Monechot et al. 2014). Use of metal components in fishing gears and nets Unauthorized sand excavation and dredging Corrosion of sunked metal scraps
...APA | 1-5 Chapters | 50 Pages |
85 | Student Researchers |
STATEMENT OF PROBLEM
When oil is spilt into the environment, it causes different kinds of pollution that have serious adverse effects on man, animals and plants. These adverse impacts to the ecosystems and the long term environmental pollution calls for urgent need to develop a wide range of material for clean-up of oil from impacted areas. Some of the problems that necessitated this study include 1 Loss of aquatic lives and arable land for farming to oil spills. 2 Crude oil polluti...
APA | 1-5 Chapters | 50 Pages |
85 | Student Researchers |
ABSTRACT
Globally the environment has been over the years faced with the challenge natural and anthropogenic waste management which affects water, sediment, fish and humans. These issues necessitated this work aimed at assessing the pollution status of upper part of Imo River, South Eastern Nigeria. This work was carried out using three parameters: physico-chemical, heavy metals concentration and PAHs analysis in three media namely: water, sediment and biota (fish). Triplicate batch...
APA | 1-5 Chapters | 50 Pages |