ABSTRACT A revised generic diagnosis of the genus Nilothauma Kieffer, 1921a, is given. Four new Afrotropical species, N. loba sp. n., N. tricaudata sp. n., N. flabella sp. n., and N. insolita sp. n., are described as male imagines. N. pictipenne Kieffer, 1921a is redescribed as male and female imagines. Two Neotropical species (N. aleta Roback,1960 and N. Buena Roback, 1960) are regarded as nominal dubia and placed in Paratendipes. A key to male imagines of the Nilothauma pictipenne group is...
ABSTRACT In most economies of the world, import revenue makes up a significant part of total government revenue (Zhu & Kotz, 2010). Since economic development in a nation is largely driven by the amount of revenue mobilized, import revenue makes an impact on how well an economy develops. This study aims at assessing the contribution of Ghana’s import revenue mobilization to Gross Domestic Product (GDP) growth and investigate the impact of the implementation of the Ghana Community Network (...
ABSTRACT Ten phages were isolated randomly from sewage sources and disposal points on the University of Ghana,Legon campus, purified and characterised as delivery systems for the resistance marker genes, Strr and Benr. The phages were found to have proteins of relative molecular weights ranging from 9,000 - 100,000. Eight phages were found to be morphologically related to the tailed phages. The other two were tailless phages. All the coliphages isolated were morphologically related to the T-...
ABSTRACT Amoebiasis remains one of the commonest gastroenteritis in Ghana especially among children. The Entamoeba complex comprises Entamoeba histolytica, Entamoeba dispar and Entamoeba moshkovskii, which are morphologically identical but genetically diverse. Entamoeba histolytica is the only known pathogenic protozoan Entamoeba species. The epidemiology of Entamoeba complex infections within the Ho Municipality in the South-Eastern part of Ghana has not been thoroughly investigated and th...
ABSTRACT The purpose of this study was to investigate the antibiotic resistance and clonal lineage of Salmonella isolated from patients suspected of suffering from typhoid fever and the susceptibility of these Salmonella strains to “Mist Enterica”, a herbal preparation used at the Centre for Scientific Research into Plant Medicine (CSRPM) out-patients’ department, Mampong-Akwapim, Ghana, to treat typhoid fever. Other strains of Salmonella isolated from food sources were also included in...
ABSTRACT Background The population structure of the causative agents of human malaria, Plasmodium species including the most serious agent Plasmodium falciparum, depends on the local epidemiological and demographic situations, such as the incidence of infected people, the vector transmission intensity and migration of inhabitants (i.e. exchange between sites).One of the major characteristics of malaria parasites is their genetic diversity and an increasing number of studies have reported on t...
ABSTRACT The erodibility of soils from six different rainfall erosivity areas in Ghana were investigated. The soils were sampled and packed into wooden boxes maintained at 9% slope. Soil erosion was measured by applying simulated rainfall storms over the soil samples. The erodibility factor K for each soil type was calculated from USLE, K=A/EI30LSCP. The results showed a variability in erodibility factor values which ranged from 0.36 to 0.62. The physical and chemical properties of the soils ...
ABSTRACT viii Bacteriophages were isolated from sewage samples obtained from the Tema Sewage Disposal Plant and the Legon vicinity using the indicator bacteria strains Shigella dysenteriae. Salmonella tvohi. Escherichia cull, and Salmpneila fir.P.UP__D.. Ten phages were isolated and partially characterized by electron microscopy, DNA fingerprinting and protein profiles by SDS-PAGE. The relatedness of the phages was determined by immunological studies. Some of the phages were screened for thei...
ABSTRACT In the mid 1990s, a new air-displacement plethysmograph (ADP) was developed for measuring human body composition. This device (BOD POD® Body Composition System) uses the relationship between the pressure and volume of air to measure the body volume of a subject seated in the test chamber. Body density (Db) is then calculated using body mass and body volume and percent body fat (% BF) estimated using an equation such as the one by Siri (1961). This study evaluated the reliability of ...
GENERAL INTRODUCTION. 1.1 Epidemiology and geographical distribution of Schistosomiasis: Schistosomiasis is the second most prevalent parasitic infection apart from malaria. Unlike the latter, whose prevalence tends to fluctuate with the rains in many areas of high endemicity for the year, schistosome infection prevalence may be usually high throughout the year in areas where the disease is endemic. Available WHO(1991) document indicates that the disease afflicts more than 200million people w...
ABSTRACT This study describes the validation of a sybr green-1 based in vitro test of susceptibility of Plasmodium falciparum to antimalarial drugs. The assay was evaluated by determining fluorescence development at various ranges of parasitaemia of 3D7 clones incubated with sybr green in the dark. The flourescence was measured with a fluorimeter after every 1hr time interval of incubation. The effect of haemoglobin on the sybr green fluorescence was also investigated with salmon sperm DNA. T...
ABSTRACT The relationship between five randomly selected isolates of Aspergillus niger from naturally infected bulbs of shallot and two shallot cultivars (Allium ascalonicum L.) was investigated. The two cultivars were “Pale-brown” and “Pink”- named for the colours of their scale leaves. A. niger causes bulb rot of shallots which have important uses in food and traditional medicine in Ghana The relationship showed by the cultivars were similar in some aspects and different in many oth...
Abstract We show that the normal Appell subgroup of the Riordan group is a pseudo ring under a multiplication given by the componentwise composition. We develop formulae for calculating the degree of the root in generating trees and we establish isomorphisms between the four groups : the hitting time, Bell, associated and the derivative which are all subgroups of the Riordan group. We have found the average number of trees with left branch length in the class of ordered trees and the Motzkin ...
ABSTRACT Desmodium adscendens is used as prophylaxis in asthma. Earlier work in this laboratory on the scientific basis for the therapeutic action of the plant indicated that both the aqueous and alcoholic extracts were anti-anaphylactic in vitro. Since extracts of the plant are taken orally by asthmatic patients, the present work was carried out to investigate the in vivo effects of both alcoholic and aqueous extracts of D. adscendens on anaphylaxis. The methods used were the contraction of ...
ABSTRACT Although Cryptosporidium spp. infections in acquired immunodeficiency syndrome patients (AIDS) and children with diarrhoea have been reported in several African countries, there is scanty information regarding cryptosporidial diarrhoea in Ghana. This study investigated occurrence of C. parvum in HIV/AIDS patients and children up to five years with diarrhoea in the Greater Accra Region. It was a cross sectional study, with Fevers Unit, Child Health Department in the Korle-Bu Teaching ...