Natural & Applied Sciences

Natural & Applied Sciences Research Papers/Topics

ARBITRAGE OPPORTUNITY IN THE GHANAIAN STOCK MARKET AN ARFIMA APPROACH

ABSTRACT Most of the methodologies employed in analyzing stock time series data are based on the assumption of Efficient Market Hypothesis which does not assume long range memory or dependence in the data generating process. However empirical evidence from stock data fails to support the lack of dependence especially in developing countries. This study investigated the long range memory in some selected equities on the Ghanaian stock market using non-parametric and parametric methods. Using t...

Survey Report on the Meteorological and Oceanographic Services in Liberia

The Republic of Liberia is situated on the southwest corner of the West Coast of Africa between longitudes 7o 30' and 11o and 30' west, and latitude 4o 18 minutes 8o 30' north. It covers surface areas of about 111,370 km2 (approximately 43,506 square miles). The dry land extent is 96,160 square km or 37,570 square miles. Liberia is limited on the west by Sierra Leone, on the north by Guinea, on the east by the Ivory Coast, and on the south by the Atlantic Ocean. Total land boundaries extend t...

ASSESSING THE IMPACT OF RISK BASED INSURANCE SUPERVISION METHODOLOGY ON NON-LIFE INSURANCE COMPANIES IN GHANA

ABSTRACT The purpose of this research is to evaluate how the inception of risk based supervisory approach has influenced the solvency positions of insurers in Ghana. The study considered 20 General Insurance Companies from 2008 – 2018. The main objectives of the study were to generate credibility risk premium values for individual claim experience to be used as an average premium regulator and develop Performance ratio thresholds for the Insurance Industry in Ghana using credibility theorie...

Khovanov Homology and Presheaves

Abstract We show that the right derived functors of the limits of the Khovanov presheaf describes the Khovanov homology. We also look at the cellular cohomology of a poset P with coecients in a presheaf F and show by example that the Khovanov homology can be computed cellularly.

INVESTIGATION OF DENGUE EXPOSURE AND INFECTION IN GHANAIAN CHILDREN WITH MALARIA

ABSTRACT Background: Dengue and malaria are two important mosquito-borne diseases. Together, both diseases are indistinguishable due to similarities in clinical and laboratory characteristics. These similarities have contributed immensely to the over-diagnosis of malaria and the under-recognition of dengue in many countries in sub-Saharan Africa. No baseline study has yet been conducted in Ghana to estimate the burden of dengue. This study therefore set out to estimate the prevalence of dengu...

PESTICIDE CONTAMINATION OF FRUITS AND VEGETABLES – A MARKET-BASKET SURVEY FROM SELECTED REGIONS IN GHANA.

ABSTRACT A market- basket survey was carried out with the aim of determining the concentration levels of pesticides, in lettuce, garden eggs, pineapple and mango from some selected regions in Ghana and to assess the potential health risk associated with exposure to the pesticide residues from fruits and vegetables consumption. A total of 192 fresh samples of fruits and vegetables were randomly collected under normal purchase conditions from 12 major towns and cities in the three regions of Gh...

TACKLING COMPLEXITIES IN MATERNAL CARE USING AN E-HEALTH SOLUTION (A CASE STUDY OF DOCTOR-PATIENT RELATIONSHIP AT FEDERAL MEDICAL CENTER, YOLA)

Version:0.9 StartHTML:0000000105 EndHTML:0000005387 StartFragment:0000000141 EndFragment:0000005347 The rate of maternal mortality in the recent time is so alarming due to weak health systems, poor doctor-patient relationship, and non-existence of e-health management system to efficiently maintain, handle the patient’s record and schedule appointments for pregnant women from the first to last trimester which will reduce unnecessary waiting line that causes stress to both the patient and...

PROCESS DEVELOPMENT AND PRODUCT CHARACTERISTICS OF EXTRUDED RICE-SOYBEAN SNACK

ABSTRACT The eating patterns of Ghanaians are changing due to urbanization, globalization, economic trends, as well as changes in social structure as a result of the increasing number of women working outside the home. These changes in eating patterns include higher consumption of snack foods by all age groups. A snack food is often smaller than a regular meal and normally consumed between meal times. Among cereal-based snacks, wheat and corn are the most popularly used cereals as compared to...

TRANSPORT COSTS AND THE LOCATION OF INDUSTRIES IN IBADAN- A STUDY IN INDUSTRIAL GEOGRAPHY

ABSTRACT The significance of transport costs in location of industries in Ibadan is studied through the application of comparative cost approach while spatial differential in factor costs is investigated by means of field survey and statistical methods.

GREEN SYNTHESIS OF IRON NANOPARTICLES (FeNPs) USING PLANT EXTRACTS AND THEIR APPLICATION IN THE DEGRADATION OF A VAT DYE

Abstract The growing concern for environmental sustainability calls for the adoption of ‘greener’ techniques for remediation purposes. The application of green synthesized iron nanoparticles (FeNPs) provides a promising route in this context. This thesis reports a facile room-temperature synthesis of stable iron nanoparticles utilizing aqueous extract of peels of Musa sp. (Plantain) and Tetrapleura sp. (‘Prekese’). The extracts served as both reductants and capping agents owing to the...

SYNTHESIS, CHARACTERIZATION AND INVESTIGATION OF TIO2 BASED NANO-CATALYSTS FOR WATER TREATMENT APPLICATION

ABSTRACT Nano titanium dioxide (TiO2) has been found to possess enhanced antibacterial properties and has thus been employed in various photocatalytic applications. Studies have confirmed higher photocatalytic activity when the TiO2 photocatalyst is doped with silver (Ag). The reported enhancement is due to valence band electrons being excited at longer wavelengths, hence extending absorbance further into the visible light region. For nano catalysts that interact in such a region, they are te...

TIE MORPHOLOGY AND ECOLOGY OF THE GENUS SYNSEPALUM (A.DC) DANIELL [SAPOTACEAE) IN NIGERIA

ABSTRACT The genus Synsepalum is represented by three species in Nigeria. It is confined to the lowland rainforest region of the country.

Microbiological and Chemical Evaluation of Some Traditional foods: ‘Aniga’, ‘Agarati’, ‘Epiti Moin Moin’ and ‘Ogiri’.

Version:0.9 StartHTML:0000000105 EndHTML:0000004603 StartFragment:0000000141 EndFragment:0000004563 The microbial and chemical compositions of some indigenous foods of Southeastern Nigeria (Imo and Anambra States) were investigated. The total aerobic plate count (TAPC) for Ogiri ranged from 1.2 x 1010 to 2.4 x1011 cfu/g, the coliform count ranged from 2.1 x101 to 9.8 x102 cfu/g, and fungal count ranged from 1.0x108 to 3.3x1011 cfu/g. Aniga had a mean TAPC of 1.4x1011 cfu/g, coliform count...

EVALUATION OF KOMI PROCESSING - PROCESS AND PRODUCT CHARACTERISTICS

ABSTRACT A sociological and techno-economic survey of komi processing was carried out in the Accra-Tema metropolis. The results indicated that the Komi industry is essentially controlled by women in their prime of life having very little or no formal education. Men play a supportive role. Production is on small-scale and profit margin generally increases with increase in quantity of maize used per batch of komi. The industry is heavily dependent on household hands and locally fabricated and m...

The Effects of Porosity and Angle of Inclination on the Deflection of Fluid flow in Porous Media

ABSTRACT The movement of contaminated fluid from a solid waste landfill into a portable water aquifier located beneath is an example of underground flow.


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