STUDIES ON THE IMPACT RESISTANCE OF CASHEW NUTSHELL POWDER AND CALCIUM CARBONATE FILLED POLYPROPYLENE

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STUDIES ON THE IMPACT RESISTANCE OF CASHEW NUTSHELL POWDER AND CALCIUM CARBONATE FILLED POLYPROPYLENE CHAPTER ONE INTRODUCTION 1.1 Background of the Study Particle reinforced plastics composites (PRPCs) are composites to which fillers (discrete particles) have been added to modify or improve the properties of the matrix and/or replace some of the matrix volume with a […]

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PHYTOCHEMICAL AND ANTIMICROBIAL SCREENING OF THE STEM BARK EXTRACT(S) OFINDIGOFERA ARRECTAHOCHST EX A. RICH(FABACEAE)

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CHAPTER ONE INTRODUCTION 1.1 Definition of a drug A drug can be described as any chemical substance that has no nutritional value when introduced into the body but causes some physiological effects within the system (Mbah, 2000). Drugs are classified under pharmaceuticals. Pharmaceutical drug, according to Dey (2006), also refers to as medicine or medicament, […]

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PHYTOCHEMICAL AND ANTIMICROBIAL STUDIES OF THE METHANOL EXTRACT OF THE ROOT OF NAPOLEONAEA HEUDELOTTI (A.JUSS)

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ABSTRACT The extracts of the root part of Napoleonaea heudelotii were subjected to phytochemical and anti-microbial studies. Extraction was done by continuous Soxhlet extraction using methanol. The phytochemical screening of the crude methanol extract, chloroform and ethyl acetate fractions revealed the presence of carbohydrate, cardiac glycosides, saponins, steroids, triterpenes, flavanoids and tannins. The result of the antimicrobial […]

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PHYTOCHEMICAL AND ANTIMICROBIAL SCREENING OF THE STEM BARK EXTRACT(S) OF INDIGOFERA ARRECTAHOCHST EX A. RICH (FABACEAE)

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ABSTRACT The Pulverized stem bark of Indigofera arrecta was exhaustively extracted with methanol and concentrated in vacuo using rotary evaporator at 40 0C.The extract was later subjected to solvent partitioning to yield soluble extracts of n-hexane, ethyl acetate, chloroform, and methanol. Genernal phytochemical screening of the fractions revealed the presence of secondary metabolites such as cardiac glycoside,steroid, terpenes […]

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ISOLATION AND CHARACTERIZATION OF BIOACTIVE COMPOUNDS FROM STEMBARK EXTRACT OF UAPACA PILOSA HUTCH

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ABSTRACT Uapaca pilosa(Hutch.) a plant used in some parts of Africa in the treatment ofdysentery, menstrual pain, fever, constipation, erectile dysfunction, skin infections, female sterility, pile, rheumatism, emetic, tooth-troubles and fatigue. The dried plant was extracted, the extract was subjected tophytochemical investigation using standard method revealed the presence of alkaloids, flavonoids, anthraquinones, tannins, saponins, steroids, […]

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AN ASSESSMENT OF TEACHERS’ KNOWLEDGE OF TEST CONSTRUCTION PROCEDURE IN CHEMISTRY OBJECTIVE TEST IN SENIOR SECONDARY SCHOOLS

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AN ASSESSMENT OF TEACHERS’ KNOWLEDGE OF TEST CONSTRUCTION PROCEDURE IN CHEMISTRY OBJECTIVE TEST IN SENIOR SECONDARY SCHOOLS CHAPTER ONE INTRODUCTION Background of the Study Testing has always been an integral part of the educational system since its inception.  The concept (testing) can be viewed as a set of tasks presented to a person, the performance […]

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THE EFFECT OF INSTRUCTIONAL STRATEGY IN INCORPORATING LOCAL PRACTICES ON SECONDARY SCHOOL STUDENTS’ INTEREST AND ACHIEVEMENT IN CHEMISTRY

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THE EFFECT OF INSTRUCTIONAL STRATEGY IN INCORPORATING LOCAL PRACTICES ON SECONDARY SCHOOL STUDENTS’ INTEREST AND ACHIEVEMENT IN CHEMISTRY CHAPTER ONE  INTRODUCTION  BACKGROUND OF THE STUDY  Chemistry is the branch of science that deals with the study of the structure and composition of matter. Chemistry has often being described as the central science, being that effective […]

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EVALUATION OF CALCIUM IN CHEESE FOR RECOMMENDED DIETARY ALLOWANCE

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ABSTRACT Cheese, a popular food across many cultures has been subject of many studies. It’s of many variants, providing huge nutritional value to humans. One of those many nutrients is calcium. Calcium helps the body in building bone structures amongst other important functions. In this study, we aimed at determining the proportion of calcium content […]

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ASSESSMENT OF EUTROPHICATION LEVEL OF MUNICIPAL SURFACE WATER

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ASSESSMENT OF EUTROPHICATION LEVEL OF MUNICIPAL SURFACE WATER ABSTRACT The level of some nutrient elements in Abuja surface water were investigated for six months to determine the eutrophication profile and make logical inference on the fate of surface water system in the nearest future. Samplings were done monthly for a period of six months covering […]

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