Environmental & Physical Sciences

Environmental & Physical Sciences Research Papers/Topics

Assessment Of Effluent Quality At The University Of Ghana Hospital, Legon

ABSTRACT Hospitals effluent often contain chemical compounds which may have negative impact on the environment and human health if not properly treated. Investigations were conducted to determine the bacteriological and physico-chemical qualities of effluent discharged from University of Ghana hospital into the environment and its effects on agricultural soils and vegetables. Water and soil quality analyses of some physico-chemical and bacteriological variables were carried out on effluent sa...

Sensory And Physicochemical Evaluation Of ‘‘Burkina’’ Made With Composite (Cow And Tiger Nut) Milk

ABSTRACT “Burkina”, a popular fermented milk beverage containing fermented millet agglomerates, is consumed in West Africa. Consumer behaviour towards “Burkina”, perceptions on its safety and potential for causing food borne illness, affects the distribution and sales of the product. Tiger nut, an underutilized crop in West Africa, with a rich nutty taste and unique mouthfeel has been incorporated into formulations for fermented milk products such as yoghurt, but not “Burkina”. Th...

Toxicological Evaluation of Biodiesel Emission Particles (BEP) Using Rat Models

Abstract The present study is an attempt to elucidate the effect of biodiesel emission particles (BEP) on some antioxidant  enzymes of selected tissues of rats. Rats were exposed to emission particles (EP) of biodiesel blended with fuel  diesel at 100BD, 75BD, 50BD and 25BD as well as fuel diesel (FD) over a period of ten days. Enzyme assays  were conducted for superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPX) and reduced  glutathione (GSH) in the liver, lungs, ...

Assessment Of Quality Management System In Some Selected Diagnostic Mammography Units In Ethiopia

ABSTRACT This research work was aimed at assessing the quality management system and radiation protection of patients of four mammography facilities in Ethiopia. A questionnaire was designed to collect data to assess the status of the quality management systems at the facilities. Quality control measurements were done to verify whether the mammography machines were performing self- consistently compatible with National and International standards. The status of patient protection was evaluate...

Susceptibility Of Two Spotted Spider Mite Tetranychus Urticae Koch (Acari; Tetranychidae) To Some Selected Insecticide In The Greater Accra Region Of Ghana

ABSTRACT The two-spotted spider mite Tetranychus urticae is a pest of several plants including vegetables, fruits, ornamentals and field crops. Damage done to the host plant can cause leaf and fruit loss, complete defoliation and death of the host plant. They are mostly managed by the use of acaricides. Acaricides resistance has been reported in several countries, this is due to the fact that T. urticae fully becomes resistant to an insecticide after two to four years of use. The present stud...

Field Evaluation Of The Bio-Efficacy Of Three Brands Of Pyrethroid-Based Mosquito Coils Against Anopheles Gambiae Sensu Lato, A Malaria Vector, At Pokuase In The Ga West District Of Greater A

ABSTRACT As a result of the increasing demand for the use of mosquito coils in Ghana, as a means of personal protection against Anopheles gambiae sensu lato, it was important to evaluate the effectiveness of three selected mosquito coils under field conditions and also determine the resistance status of Anopheles gambiae sensu stricto against pyrethroid-based mosquito coils. Three bands of pyrethroid-based mosquito coils; Angel Jumbo coil®, Lord Insecticide antimosquito coils® and Heaven J...

Apprenticeship System Of ’’Wayside" Seamstresses From Selected Neighbourhoods In Accra.

ABSTRACT The purpose of this study was to investigate the apprenticeship system of fifty seamstresses and fifty apprentices from Achimota, Legon and Madina neighbourhoods of Accra. A stratified sampling technique was used to select the respondents from these neighbourhoods. The respondents were interviewed by the researcher, using two separate structured questionnaires: One for the seamstresses and the other for the apprentices. A non-obtrusive observational guide was also used to evaluate te...

Assessment of Heavy Metal Contamination Levels in Topsoil at Selected Auto-workshops in Accra, Ghana

ABSTRACT The research was conducted to assess the levels of contamination of heavy metal in topsoil at auto-workshops in Accra, to determine the anthropogenic and crustal contributions and the human health risk associated with them. Soil samples collected from four selected auto-workshops were analysed using Atomic Absorption Spectrometer. Eleven (11) elements: Co, Fe, Cu, Mn, Cr, As, Hg, Zn, Pb, Ni and Cd were identified in each sample collected from the auto-workshops. Pollution indices; co...

Insecticide Use Pattern, Residues In Soil And Water And Kjdr Resistance In Anopheles Gambiae S.L. On Rice Farms In Okyereko, Central Region.

ABSTRACT Indiscriminate use of insecticides in controlling insect pests of agricultural crops has been implicated in the development of resistance in disease vectors such as the Anopheles gambiae s.l Giles (Diptera: Culicidae) populations that breed within farming areas. Since vector control strategies are insecticide based, it is important to study insecticide resistance in farming areas such as irrigation sites where vectors are breeding. The aim of the study was to investigate insecticide ...

Quality And Knowledge of Best Practices in Early Childhood Programmes : Perceptions of Parents And Teachers

ABSTRACT Developmental and Educational psychologists continually set research-based quality standards in Early Childhood Education. However, not much is known on the level of quality and the practices in the early childhood centers in Ghana. This research explored the concepts of quality and best practices, internationally known as Developmentally Appropriate Practices (DAP), in four (4) early childhood settings in Haatso, a cosmopolitan suburb in the Ga-East District of Greater Accra, Ghana...

Impact of Charcoal Production on Soil Properties And Vegetables in The Central Gonja District of The Northern Region Ghana

ABSTRACT This study assessed the impact of charcoal production on soil properties, vegetation and the perception of charcoal producers on the environmental impacts of their activities in the Central Gonja District of the Northern Region, Ghana. Data acquired suggest significant differences in the proportions (or fractions) of clay and sand in soils sampled within 0-30 cm depth at sites of charcoal production referred to simply (as burnt sites) and sites with no observable indications of char...

Studies On The Biology And Activity Levels Of Carboxylesterase As An Indicator Of Insecticide Resistance In Populations Of Diamondback Moth, Plutella Xylostella (L.) (Lepidoptera: Plutellidae

ABSTRACT Biology of Diamondback moth, Plutella xylostella (L.) (Lepidoptera: Plutellidae) was studied in the laboratory under controlled conditions, i.e. 28 ±1 °C, 65-70 % r.h and a photoperiod of 12L: 12D hours. The results indicated that the developmental time of P. xylostella from egg to adult emergence took on the average 17.5 days. About 59 % of the eggs were laid on the first night of oviposition. Additionally females were generally larger (5.0mm) than males (4.5 mm). Effects of tempe...

Host Plant Suitability Of The Papaya Mealybug, Paracoccus Marginatus Williams And Granara De Willink (Hemiptera: Pseudococcidae), And The Host Specificity Of Its Natural Enemy, Acerophagus Pa

ABSTRACT The papaya mealybug Paracoccus marginatus Williams and Granara De Willink (Hemiptera: Pseudococcidae) is an invasive pest insect that can damage a wide range of agricultural crops. Successful biological control of this pest strongly relies on its mass rearing in order to produce its introduced natural enemy, Acerophagus papayae. Host susceptibility studies of P. marginatus were done on four different host plants: Manihot esculenta (cassava), Solanum macrocarpon (African egg-plant), V...

Assessment Of The Effects Of Quarrying Activities On Some Selected Communities In The Lower Manya Krobo District

ABSTRACT This study assessed the effects of quarrying activities on some selected communities in the Lower Manya Krobo District. Questionnaires targeting inhabitants around the quarry sites, observations, collection of health records from well patronized hospitals/clinics and dust (PM10) sampling were used as data gathering instruments. The study revealed that some of the men have been employed as quarry workers and a substantial number of women in the area have become food vendors at the qua...

The Relationship Between Women's Economic Activities And The Adequacy Of Feeding Their Pre-School Children: The Case Of HO In The Volta Region

ABSTRACT The study examined the Relationship Between Women's Economic Activities and the Adequacy of Feeding their PreSchool children at Ho in the Volta Region. The main aim of this project was to find out the relationship between the length of time mothers spent away from home and feeding adequacy which was assessed by growth performance of the children. In all 70 working mothers with children aged 24 - 60 months were studied. A semi-structured questionnaire was used to collect demographic ...


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