Natural & Applied Sciences

Research Papers/Topics Natural & Applied Sciences

On A Global Solution Of The Navier -Stokes Equations With Internal Body Forces

ABSTRACT The main objective of this study is on a global solution of the Navier-Stokes equations with internal body forces. The internal body forces play very important in both theory and application with Navier-Stokes equations. We discussed about the general solution for ordinary differential equations (ODES) and partial differential equations (PDES). Also they used the MAC model for incompressible flow. The study has been conducted in order to provide abroad understanding the existence of...

Improving Intelligent Transportations Systems Through Analytical Investigation of Macroscopic Traffic Flow Model in Vehicular Ad Hoc Networks(VANETS)

Abstract In recent times, wireless communication has witnessed unprecedented growth due mainly to advances in instrumentation and computer science. Substantial research efforts have been devoted to exploring the application of Intelligent Transportation Systems (ITS) within the context of vehicular ad hoc networks (VANETs) to ensure safety and for an efficient and integrated transport network. Vehicle-to-vehicle (V2V) communication in VANETs poses many challenges. In sparse as well as in den...

Investigating Laptop Battery Lifespan As Affected By Charging Practices

ABSTRACT This study investigated laptop battery lifespan as affected by users charging practices. Laptop battery lifespan is the average length of life a laptop battery has or the duration if its effectiveness. Battery charging practices means the frequency by which a user plugs the machine in the electric source. The main purpose of the study was to investigate the two different laptop charging practices on how they affect the lifespan. The two laptop charging practices that concerned this ...

Prevalence of Zinc Deficiency Among Ghanaian Adolescents Versus Food Components of Zinc And Phytate

ABSTRACT Zinc is an essential micronutrient found in almost every cell in the body. Nutrient needs are highest during adolescence, surpassed only by needs during pregnancy and lactation. The aim of this study was to determine the prevalence of zinc deficiency among adolescents in Ghana and to relate this with dietary intake of zinc and phytate. A total of 300 adolescents between ages 13-19 years were recruited from the Greater Accra and Upper East Regions for the study. Questionnaires were u...

A Statistical Analysis On O Level Students Performance In Dodoma: A Case Study At Dodoma Municipal

ABSTRACT This study focused on O level performance of students in Dodoma. The study employed mixture research design whereby a total of 294 respondents from seven schools in Dodoma municipal were involved. Data were collected through printed questionnaires and documentary reviews. Tables, bar charts, line chart and logit model were used to analyze data collected through Microsoft office excel 2013 version and SPSS IBM 21. The main findings of this study indicated that among many other factor...

The Effect of Croton Membranaceus on DIHYDROTESTOSTERONE Levels in Blood And its Synthesis by Prostatic 5a-Redutase in The Rat

ABSTRACT Alcoholic extract of Croton membranaceus Mull. Arg is used at the Centre for Scientific Research into Plant Medicine at Mampong Akwapim to treat retention of urine due to benign prostatic hyperplasia (BPH). The effect of the extract on rat steroid 5areductase activity in invo was investigated using a radioimmunoassay technique to quantitate dihydrotestosterone (DHT) levels in blood. The effects of the extract and two unidentified alkaloidal isolates of the plant, provisionally refer...

Plasma Kisspeptin Levels in Type 2 Diabetic Males at The Korle-Bu Teaching Hospital

ABSTRACT  People living with type 2 diabetes mellitus is on the increase and research has established that there is decreased secretion of testosterone in Type 2 Diabetic Mellitus males which may be linked to decreased levels of kisspeptin secretion that can cause the development of diabetic complications such as erectile dysfunction. Decreased kisspeptin levels have strongly been linked to decreased secretion of gonadotropins from the pituitary gland and this causes type 2 diabetic males to...

Characterization And Sources of Air Particulate Matter at Kwabenya, Near Accra, Ghana

ABSTRACT Gravimetric, reflectometric and elemental analyses have been carried out on airborne particulate matter sampled in a semi-rural area of Kwabenya, near Accra-Ghana. The PM 10 aerosols were sampled using a Gent sampler, size segregating the aerosol into coarse (PM10.2.5) and fine (PM2.5) fractions. The data and derived information were generated from 216 days of sampling spanning a period of about 14 months, 28th December 2005 to 12th February 2007. The particulate matter (PM) at Kwab...

Edu Frontiers 211 PAGES (62078 WORDS) Physics Thesis
Assessment of The Effect of Beam Modifiers on Skin Dose For External Beam Radiotherapy Using Gafchromic EBT2 Films

ABSTRACT  In radiotherapy, a patient may present irregular surface contour at the point of beam entry and this coupled with tissue heterogeneities within the irradiated region would pose problems for dose optimization if beam modifiers are not used. Skin dose is of great concern in external beam radiotherapy with megavoltage beam as the skin is very radiosensitive, and there is the need to minimize the radiation dose received by the skin. The use of beam modifiers affects the skin dose and t...

Heavy Metal Pollution of Fish And Fish Oils From Some Coastal And Inland Waters of Ghana

ABSTRACT While fish and fish oil promote good health, increasing environmental pollution may introduce heavy metals into the fish which may render them injurious to health. Nine commonly consumed fish samples in Ghana, five from marine sources and four from freshwater sources were analysed for their heavy metal contents. The heavy metals are Cadmium (Cd), Lead (Pb), Mercury (Hg), Arsenic (As) and Selenium (Se). The fish samples are Herring (Sardinella species), Redfish (Red mullet), Mackerel...

Antimicrobial Resistance And Genetic Diversity of Staphylococcus Aerus From Surgical Site Infections at Two Hospitals in Ghana

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 may ...

Edu Frontiers 104 PAGES (23978 WORDS) Microbiology Thesis
Enhancement of Solubility, Dissolution And Stability Properties of Griseofulvin

ABSTRACT  Good aqueous solubility and permeability of a drug is essential for the desired concentration (bioavailability) to be achieved in systemic circulation. Poor solubility of drugs remains a major challenge in pharmaceutical firms. Such drugs lead to poor bioavailability, dissolution rates, stability, permeation through membrane and extensive presystemic metabolism. Oral route remains the preferred choice of drug administration but the poor solubility of Griseofulvin, a class II drug o...

Edu Frontiers 77 PAGES (14411 WORDS) Chemistry Thesis
Seasonal Dynamics Of Benthic Macrofauna In The Keta Lagoon

ABSTRACT to influence habitat heterogeneity, possibly serving as strong predictors macrofaunal assemblage and abundance in the Keta lagoon. Some I agoons a re dumping a reas for d isposal o f waste f rom u rban and i ndustrial areas. In some places their water is used for the cooling o f generators o f electric power plants, which return effluent of warmed water to the lagoon. Coastal lagoons are economically important in their use for aquaculture facilities ((Day and Yanez- Arancibia, 1985;...

SSA Research 134 PAGES (31585 WORDS) Oceanography Thesis
Epidemiology and Molecular Characterization of Giardia Lamblia and Cryptosporidium Sp. Infections among Children In Accra, Ghana

ABSTRACT Giardiasis and cryptosporidiosis remain as part of the commonest gastroenteritis in Ghana. The diseases are caused by the protozoan parasites, Giardia lamblia and Cryptosporidium sp. respectively. Inadequate supply of treated water and poor sanitation are some of the key factors leading to the spread of these infections. Being zoonotic diseases, it is suspected that, a large proportion of human infections could come from infected domestic and farm animals. Though, use of molecular to...

SSA Research 180 PAGES (39453 WORDS) Microbiology Thesis
Effects Of Some Cultural Practices And Some Plant Extracts On The Wilt Disease Of Tomato (Lycopersicon Esculentum Mill) Grown In Owerri Metropolis In Imo State, Nigeria.

ABSTRACT The effects of some cultural practices and some plant extracts on wilt disease of tomato (Lycopersicon esculentum Mill) in Owerri, were studied. The experiments were conducted in 2010, 2011 and 2015 at the Teaching and Research Farm and in the Crop Science and Technology Laboratory of the School of Agriculture and Agricultural Technology, Federal University of Technology, Owerri, Imo State, Nigeria. The investigation consisted of three (3) different experiments and each repeated two...


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