Environmental & Physical Sciences

Environmental & Physical Sciences Research Papers/Topics

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 ...

Effects Of Different Control Strategies On Maize Plant Recovery And Yield After Fall Armyworm Infestation

ABSTRACT The larvae of Fall Armyworm (FAW), Spodoptera frugiperda (J. E. Smith), (Lepidoptera:Noctuidae), can cause significant damage to crops such as maize if not well managed. The purpose of this study was to determine the levels of natural infestation of FAW along the phenology of maize under field conditions, investigate the critical stages for FAW control along maize phenology, and to ascertain the effect of different treatments on maize recovery and yield after FAW infestation. This w...

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 ...

Determination Of The Activity Concentrations Of Radon-222 And Radon-220 In Water And Soil Samples From Newmontakyem Gold Mine Using Gamma Spectrometry

ABSTRACT In this study a total of 28 water and soil samples were analysed by High Purity Germanium (HPGe) detector for 222Rn (Radon), 220Rn (Thoron) and other natural radionuclides (226Ra, 232Th plus 40K) activity concentrations. The data generated was then used to assess radiological hazards posed to the public. The radon (Rn-222) concentration in the surface water varied from 0.015 to 1.701 Bq/L with a mean value of 0.913 ± 0.605 Bq/L against the global average of 11 Bq/L and thoron (Rn-22...

Characterisation Of Bemisia Tabaci (Gennadius) (Homoptera: Aleyrodidae) Biotypes Associated With Some Selected Crops In Southern Ghana.

ABSTRACT Intraspecific variation and biological heterogeneity in the whitefly Bemisia tabaci make it a major pest in diverse agricultural systems worldwide. The economic burden of this insect pest owes to its apparent polyphagy, vectorial capacity for viruses, and propensity for insecticide resistance development. Ecological specialisation has been observed in the species, which compounded with the variability, and adaptability pose serious impediments in its control. Effective description of...

Appearance Management: Shopping Styles, Dress Styles And Personality Traits Of Female Young Adults

ABSTRACT An understanding and application of consumer behaviour to fashion product development and marketing provides a competitive advantage that leads to the success of every fashion business. The purpose of the study was to evaluate the relationship among shopping styles, dress styles and personality traits of Ghanaian female young adults. A cross-sectional design with a quantitative approach was used to conduct the study. A multistage sampling technique was used to select 447 Ghanaian fem...

The Influence Of Climate Variability And Change On The Attainment Of Energy Security In Ghana: A Study Of The Akosombo Hydroelectric Power Project

ABSTRACT The impacts of climate variability and change including the influence of ENSO are real and affect several productive economic sectors such as agriculture, water, forest resources and energy. Energy is a very important sector for achieving sustainable development. Ghana has continuously relied heavily on Akosombo and Kpong hydropower stations to supply electricity for household and industrial use. Historical records have shown that variability and change in rainfall including the inf...


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