Natural & Applied Sciences

Research Papers/Topics Natural & Applied Sciences

Dosimetric Effects Of Thermoplastic Immobilizing Devices On Skin Dose

ABSTRACT This work shows the increase in surface dose caused by thermoplastic immobilizing masks used for positioning and immobilization of patients. Thermoplastics are organic materials which soften when they are heated. They can be formed after softening and retain their final shape when cooled. The use of these thermoplastic masks are relevant during patient treatment. However, it can lead to an increased skin dose. Measurements were done at source-to-suface distance of 80 cm for external ...

Lymphatic Filariasis At Gomoa Okyereko, An Irrigation Project Community In Southern Ghana: Infection, Clinical Disease And Vectors

SUMMARY A parasitological, clinical, periodicity and entomological study of lymphatic filariasis was earned out at Gomoa Okyereko, an irrigation project community in Southern Ghana to provide baseline information on the infection and its transmission in the community. Out of a total of 636 inhabitants, fifty percent of the residents were selected from the compiled demographic data using computer generated random numbers to constitute the study population. Quantitative examination of night blo...

Occurrence Of Babesia / Theileria Amongst Humans, Cattle, And Dogs At The Middle Belt Of Ghana

ABSTRACT Background: Babesia/Theileria species are intra-erythrocytic protozoa of the phylum apicomplexa. The merozoite stage of Babesia/Theileria have diagnostic significance and are found as intracellular inclusions of infected red blood cells. The trophozoite stages appear as ring forms which measure about 1.0 to 5.0µm. These parasites are transmitted by hard ticks and can cause a zoonotic disease known as babesiosis/theileriosis. Human babesiosis/theileriosis are usually asymptomatic exc...

Copy Number Variation Of Gtp Cyclohydrolase 1 (Gch1) Gene And Its Impact On Antifolate Drug Resistance Of Plasmodium Falciparum In Ghana

ABSTRACT As part of the malaria control measures in Ghana, sulfadoxine-pyrimethamine (SP) is used as an Intermittent Preventive Treatment (IPTp) among pregnant women and now as a seasonal chemoprophylaxis (SMC) in children on pilot basis. However, parasite resistance to the drug has been reported in the country and this has been linked to point mutations in the dhps (dihydroptoreate synthase) and dhfr (dihydrofolate reductase) genes, the targets of SP. There is also an evidence of amplificati...

The Effects of Antimalarial Drugs and Plasmodium Falciparum Drug Resistance Genes on Malaria Treatment Outcome

ABSTRACT Background: Malaria continues to be a major public health concern with majority of deaths occurring in the tropical regions. Control strategies within the human host have been through drug administration either as treatment of infected persons or prophylaxis. The challenge to effective malaria control is partly due to the emergence and the spread of resistant Plasmodia, especially in endemic countries. Confirmed antimalarial drug resistance is the combination of microscopic analysi...

Pub Network 119 PAGES (25553 WORDS) Microbiology Thesis
Determination of Anomalous Gold Targets by Use of Geochemical Exploration and Multivariate Statistics Methods in Chirano Gold Mining Area of the Western Region, Ghana

ABSTRACT  The main aim of this dissertation was to identify pathfinder elements for gold and generate new gold targets for further exploration at Chirano Gold Mining Area. A geochemical data was generated from 521 soil samples which were analysed for 51 elements and evaluated using multivariate statistical methods. Principal Components and Factor Analyses were used to reduce the data into two groups and Cluster Analysis conducted to find element associations hence pathfinders for gold. Ano...

The Study of the Motors Affecting the Natural Resistance of the Wood of Terminalia Ivorensis against Termite Attack

ABSTRACT The natural Radial and axial variations in the resistance of the wood of Termihalia ivorensis A* Chev, against damage by subterranean termites were investigated for two trees from the same locality- The damage was studied in relation to specific gravity, the modulus of elasticity, the cross-sectional area of vessels in the wood,, and the water soluble extractives. The correlation between termite damage and these physical, mechanical and anatomical properties have been reported. It wa...

Pub Network 159 PAGES (31929 WORDS) Botany Thesis
A Gis Perspective for Local Level Planning and Decision-Making: The Case of Spatial Data Integration, Health and Sanitation in the Ga District of Ghana

ABSTRACT The devolution of political administration, planning and the decision-making process from over burdened central governments to the local level has been borne out of one basic fact - that community participation in governance, planning and decision-making will make the process of development more self-sustaining. The assumption being that bringing policy decisions that reflect local conditions closer to the people will lead to a fuller participation in programmes that will bring abou...

Pub Network 213 PAGES (129408 WORDS) Geography Thesis
Antimicrobial Resistance and Genetic Diversity of Staphylococcus Aureus from Surgical Site Infections at Two Hospitals in Accra

ABSTRACT  Background: Surgical site infections (SSIs) are the most common healthcare-associated infections affecting surgical patients. Such infections are often caused by methicillin-susceptible as well as methicillin-resistant Staphylococcus aureus. Methicillin-resistant Staphylococcus aureus (MRSA) is resistant to the entire class of beta-lactam antimicrobials; which are largely used in clinical medicine. Patients infected with MRSAs therefore have limited therapeutic options, and this ...

Pub Network 104 PAGES (23876 WORDS) Microbiology Thesis
Gastrointestinal Parasites in Ruminants at Selected Abattoirs in The Greater Accra Region, Ghana.

ABSTRACT The main source of animal protein is livestock and their products. Livestock plays a crucial role in the economy of most nations. Parasitism is one of the main constraints limiting livestock productions. Control of parasitic diseases communicable from animals to men under natural conditions is very necessary to improve the health status of Ghanaians. The research was aimed at determining different parasites and compares the prevalence of infections at certified and uncertified abatt...

Antimicrobial Activity of Hibiscus Sabdariffa Against Clinical Isolates of Bacteria

ABSTRACT There have been several reports on the antimicrobial activity of different herbal extracts. Medicinal plants are believed to be the best source for obtaining a variety of drugs. Hibiscus sabdariffa L. is a medicinal plant known for its nutritional delicacy and medicinal properties such as the treatment of diseases like hypertension, coughs, biliousness, boils and wounds. Currently, the main therapy for bacterial infections is the use of synthetic antibiotics. However, the misuse and...

The Effect Of Heat On Some Chemical Properties Of Vegetable Oils And Fats

ABSTRACT Samples of oils and fats of different degree of unsaturation namely; shea butter, palm oil and groundnut oil were heated at three different temperatures (150°C, 110°c and 190°C) for 2, 4, 6, 8 and 1 Ohrs using a temperature regulated, lidded-deep frying equipment. The changes in some chemical properties were monitored. These chemical properties include acid value, iodine value, saponification value, peroxide value and volatile content. The total phosphorus contents were also monit...

SSA Research 150 PAGES (25349 WORDS) Chemistry Thesis
The Development And Evaluation Of Analytical Procedures For The Determination Of Heavy Metals In Industrial Effluents

ABSTRACT This project is concerned with the development and evaluation of an atom-trapping 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 the atom tr...

SSA Research 135 PAGES (23914 WORDS) Chemistry Thesis
The DETERMINATION Of Selected Metal ELEMENTS IN AGRICULTURAL SOILS FROM THREE AREA COUNCILS OF THE FEDERAL CAPITAL TERRITORY (FCT), ABUJA, NIGERIA USING ATOMIC ABSORJ)TION SPECTROPI-IOTOMETR

ABSTRACT Co111positc soil samples were collected rnmlomly within Gwagwul8da, Kujc ami Kw;di 1 t.:n Councils or the Federal Capit:d Territory (FCT), /uja. The sarnpks were mwlyscd lr pH. percentage organic mutter, exchat1gcablc bases, cxchallgcahlc acidity. c!Tective cntion cxclwngc cnpacity (I􀛺CEC), perccnt;1gc base saluratioll, available lllclal clclllclltS, the toltd levels or COIICl'lltratiollS of the lllCtal clclllCiltS. chcrnical IJ·actiOIIS of 11lallgallCSC, LillC dctl􀅚:ity, te...

The Computer Search For The Optimal Settings Of A Multi-Factorial Experiment Using Response Surfaces D-Optimality Design Criterion

ABSTRACT Most experimental situations call for standard designs that can be constructed with many statistical software packages. In some situations, however, standard designs are not appropriate or practicable. Computer-aided designs are experimental designs that are generated based on a particular optimality criterion and are generally optimal only for a specified model. In this work designs are generated for non-standard multifactor experiment using D-optimality criterion. The experiment in...


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