Natural & Applied Sciences

Research Papers/Topics Natural & Applied Sciences

Comparative Study of Antibacterial Activities of Ethanol Extracts of the Bark and Seeds of Garcinia kola and Caricapapaya

ABSTRACT: A comparative study of the antimicrobial activities of the bark and seed extracts of Garcinia kola and Carica papaya were tested using the Agar well diffusion method on eight bacterial strains - Staphylococcus aureus; Salmonella typhi B; Shigelladysenteria; Pseudomonas aeruginosa; Serratiamarcescens; Pseudomonas fluorescens; Proteus vulgaris; and Bacillus subtillis. Phytochemical screening shows that both bark and seed of the two plants contain reducing sugars, phenols and alkaloid...

Overpressure/ Depositional Analysis of Parts of Onshore (X-Field) Niger Delta Basin Nigeria, Based on Well Logs Data

ABSTRACT Overpressure in the world’s sedimentary basins are known to be allied with permeability barriers, tectonics, shale digenesis, basin structure and undercompaction factors. The Niger Delta basin has many overpressured zones with different depositional enviroments. This study was done using six drilled wells log suits in an x- field (Gama ray log, deep induction log, Density log, and sonic log). The data was acquired from Cheveron Nigeria Ltd in ascii softcopy format, which was analys...

A laboratory study of the effects of porosityand bed tilting on the discharge rate of groundwater

Abstract : The study of movement of underground water helps to predict the extent of flow in as much as we can determine the volume rate among other things. Sand samples from river bed were used as porous media. a laboratory experiment was set lip to Iook at longitudutinal dispersion III term of volume of liquid flowing across a unit cross sectional area per unit time in these materials. Water was made to flow through a cylindrical pipe drilled sideways at intervals. Values of pressure were ...

Assessment of ICT Utilisation in Senior Schools in Asikuma-Odoben-Brakwa District

ABSTRACT This study examined the assessment of Information and Communications Technology (ICT) utilization in the Senior High Schools in Asikuma-Odoben-Brakwa District in the Central Region of Ghana. The Research Design employed for the study was descriptive survey. The objectives for the study were to examine the availability, adequacy and accessibility of ICT facilities and services in the selected schools by students and teachers, find out the attitudes and perceptions of students towards...

Spectroscopic Studies of Some Selected Anti-Malarial Herbal Plants Sample Combined With Multivariate Data Analysis

ABSTRACT Two spectroscopic techniques: Laser-Induced Fluorescence (LIF) and Attenuated Total Reflectance Fourier-Transform Infrared (ATR-FTIR) spectroscopy and soil analysis were used to study and classify Anti-Malarial Herbal plants (AMHPs) from four locations (Abrafo, Jukwa, Nfuom and Akotokyere) in the Cape Coast metropolis. Deconvoluted peaks from the LIF spectra of the AMHPs samples showed compounds such as berberine, quercetin, flavanols presents in all the AMHPs samples. Principal com...

CDR Coalition 204 PAGES (31503 WORDS) Physics Thesis
Intertidal Macro-Algal Diversity and Zonation Patterns of the Eastern and Western Coasts of Ghana

ABSTRACT  Based on abundance and distribution of species along the intertidal continuum from the sublittoral to the supralittoral, rocky shores have been divided into zones globally.  Rocky shore zonation has been assumed to follow broad regional and latitudinal patterns with no attention being paid to smaller scale patterns. The aim of this study is to find out if the global 3-zone division is applicable to Ghanaian shores based on multivariate analysis. Macroalgae which constitute th...

Groundwater Contaminated by Nitrates—A Case Study of Ado-Ekiti, Ekiti State, Southwestern Nigeria

Abstract: Nitrate is one of the problematic and wide spread contaminations. Indiscriminate disposition of human and animal wastes in Nigeria especially in urban region, and lack of proper environmental sanitation geared the need for the monitoring of groundwater contamination. This research work monitored the concentration of nitrate and nitrate-nitrogen in portable water from wells in Odo Ado, Ado-Ekiti, Ekiti State, and examined the relationship between this concentration and the well dept...

Effect of Silicon Content and Shake-Out Time on Hardness and Grain Size Properties of GL 250 Cast Iron

ABSTRACT The properties of cast iron grade GL 250 are dependent on the microstructures developed during casting. These microstructures are in turn dependent on the composition of the alloy, type of mould and other numerous casting practice variables such as shake-out time, pouring temperature, mould ambient conditions and inoculating technique. In this work, the effect of silicon content and shake-out time on the grain size (GS) and hardness properties of GL 250 cast iron was studied using a...

A Linearized thermometer Circuit Employing a Thermistor and a Diode as Probing Elements

ABSTRACT The development of a linearized thermistor-based thermometer circuit with a thermistor and a diode as the temperature probing elements is here reported. The circuit is effectively that of an op amp based logarithmic amplifier, which takes its input from another inverting op amp circuit having a thermistor in its feedback loop. The performance of the circuit is demonstrated experimentally and has been found to have a linearity error of less than 0.2%. The accuracy analysis of the circ...

THE EFFECTS OF COMPUTER-ASSISTED INSTRUCTION ON THE ACADEMIC ACHIEVEMENT OF SENIOR HIGH SCHOOL STUDENTS IN PLANE GEOMETRY IN THE WEST AKIM MUNICIPALITY

ABSTRACT The study sought to find out the effects of Computer-Assisted Instruction on the academic achievement of Senior High School (SHS) students in Plane Geometry in the West Akim Municipality. It specifically investigated whether Computer-Assisted Instruction has any effect on gender as far as the academic achievement of students is concerned. The quasi experimental group design (or the non-equivalent group design) was employed as the research design. Students from two comparable classroo...

Interaction of Multiwalled Carbon Nanotube Produces Structural Alteration of DNA

ABSTRACT Multiwalled carbon nanotube (MWCNT) has been found to produce structural changes in Calf Thymus-DNA (CT-DNA). The interaction or binding of the multi-walled carbon nanotubes (MWCNT) was investigated in order to discover if it brings about any significant changes of the DNA double helix using CD spectra of the CT-DNA at two concentration levels of MWCNT representing an increasing MWCNT/DNA molar ratio. In addition, spectrophotometric titrations between MWCNT and CTDNA were carried ou...

OBSERVATIONS ON THE GROWTH AND SURVIVAL OF Oreochromis niloticus (L) FED ON FORMULATED FEEDS

ABSTRACT Five feeds, designated A, B, C, D and E, were used in the culture of Oreochromis niloticus (L) to evaluate and compare their effects on growth performance, feed conversion ratio (FCR), fish production, survival rate and profitability in commercial tilapia farming in Ghana. Feed A contained only wheat bran and was used as the control; Feeds B, C and E were formulated from wheat bran, fishmeal, maize, palm oil and premix vitamins in varied proportions. Feed D was a commercial fish feed...

CDR Coalition 176 PAGES (34941 WORDS) Zoology Thesis
MOLLUSCUM CONTAGIOSUM VIRUS INFECTION AMONGST PLWHA IN IBADAN, NIGERIA

ABSTRACT Background: Molluscum contagiosum (MC) infection is caused by a pox virus and the virus is probably passed on by direct skinto-skin contact which may affect any part of the body. There is anecdotal evidence associating facial lesions with HIV-related immunodeficiency. This study was aimed to determine the prevalence and associated risk factors of Molluscum contagiosum infection among PLWHAs attending ART clinic at the University College Hospital, Ibadan, Nigeria. Methods: This is a ...

GENETIC POLYMORPHISMS ASSOCIATED WITH HYPERTENSION IN THE ETHNIC POPULATIONS OF CALABAR AND UYO, NIGERIA

ABSTRACT Hypertension is a public health challenge due to its high prevalence, and is a major risk factor for cardiovascular diseases. Hypertension is a complex disease resulting from an interaction of genes and environmental factors. Inconsistent association between polymorphisms of the renin angiotensin aldosterone, the atrial natriuretic peptide systems and hypertension has been reported among various ethnic groups, but not for the Efiks and Ibibios in south-south Nigeria. This study was ...

SOCIAL SUPPORT SYSTEMS FOR THE AGED IN THE BAWKU I~i__-------. MUNICIPALITY

ABSTRACT The global ageing population is increasing in number and in proportion, although at different rates in different parts of the world. Ageing involves biological, psychological, economical and social change throughout the life cycle of an individual. The social status of the aged in a given society reflects the political, economic and traditions ofthat society. In Ghana, family-based support systems for the aged were very effective in the past. However, there are concerns on the effect...

CDR Coalition 151 PAGES (32071 WORDS) Geography Thesis

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