Environmental & Physical Sciences

Environmental & Physical Sciences Research Papers/Topics

The Method Of Simulated Annealing For The Optimal Adjustment Of The Nigerian Horizontal Geodetic Network

ABSTRACT The Horizontal Geodetic Network of Nigeria is made up of terrestrially arranged chains of triangles augmented by precise traverses. The work on the network began early 19th century but by 1930 the work was discarded and a re-observation of the network was carried out to the highest possible accuracy then, enhanced with high order geodimeter traverses which linked to other neighboring African networks. The full network consists of 515 stations, with 2411 observations which comprise 21...

INDUSTRIAL ACTIVITIES AND SUSTAINABLE DEVELOPMENT IN NINTH MILE CORNER ENUGU, NIGERIA

ABSTRACT Industrialization is the social and economic change that transforms a human group from an agrarian society into an industrial one. Despite the fact that the presence of industries has given rise to purchasing power, it has resulted to adverse effects. The study was aim to highlight negative 15 environmental, social and economic effects of industrial activities in Ninth Mile Corner, Enugu with a view to suggesting ways of adopting sustainable development. The study adopted a survey de...

Comparative Study Of Vitamin A And Anthropometric Status Of Children Aged 6-24 Months In Urban And Rural Communities In Kaduna State, Nigeria.

ABSTRACT This invest igat ion centered on Vi tamin A and anthropomet r ic status of 400 children aged 6-24 months in urban and rural communi t ies in Kaduna South local government area, Nigeria. Select ion of chi ldren was through systemat ic sampl ing technique. Two hundred children from each communi ty, ninety four males (94) and one hundred and six (106) females from Makera (urban) and ninety three males (93) and one hundred and seven (107) females from Kinkinau ( rural) communi t ies comp...

Challenges In Sewage Management In Urban Areas Of Zimbabwe. A Case Of Gweru Urban

Abstract The scope of sewage management has evolved throughout history with changes in the socio-economic conditions, city structures and the environmental concern. The major thrust of this paper is to assess challenges faced in sewage management in urban areas of Zimbabwe using Gweru urban as a case study. The researcher employed cluster sampling to distribute 60 questionnaires in two clusters. In gathering information the researcher used questionnaire, interviews, observations and secondary...

Web Based City Engineering Services Fault Reporting System: A Case Study Of Gweru City Council Engineering Department Chapter 3: Methodology

ABSTRACT Located in and forming part of their communities, councils are ideally positioned to search out the fine approaches to meeting local needs. Accountable for delivering an estimated eighty per cent (Andrew, et al., 2013) of public sector transactions of their areas, local authorities have a particular responsibility to design their services in probably the most accessible, monetary and ‘user-friendly’ manner. A critical function is to work intently with other public, private and vo...

The Impact Of Street Vending On Financial Perfomance Of Formal Clothing Retailers In Gweru.

ABSTRACT This study seeks to find the impact of street vending on financial performance of formal clothing retailers in Gweru. This study draws inspiration from the gaps identified in previous research studies. Previous studies generalised the impact by actually looking at the impact of informal economy on business holistically. The main objective was to establish the relationship between street vending and financial performance of formal clothing retailers between the years 2013 and 2015. Th...

The Solid Waste Management In Mubaira Growth Point, Chegutu Rural District Council

ABSTRACT Solid waste management has been a topical issue in the urban centres of most developing countries including Zimbabwe. This has posed serious environmental challenges in the cities of Zimbabwe. However, this issue has concentrated on solid waste management in the urban areas leaving out the rural areas. Solid waste generation in the rural areas has since increased both in quantity and quality due to modernization. Solid waste composition in the rural areas has been known to be dominat...

Place Making: A Study Of ‘Oja – Oba’ Open Space Design In Yoruba Urbanism

ABSTRACT Values inherent in city spaces may be biophysical, social, cultural, religious, economic and political. These values give meaning and determine the level of user’s attachment. When urban space generates meanings to city people, the bond is stronger and ‘space’ at that point transforms to ‘place’. While some city open spaces succeed others failed to meet designed goals. This research investigated the inherent ‘place making’ attributes of Oja - Oba open space (King’s ma...

An Investigation Into The Integration Of Information Communication And Technology In The Teaching And Learning Of Geography In Five Schools In Chitungwiza District

ABSTRACT The study aimed at investigating the integration of ICT in the teaching and learning of geography. The data used in this research was obtained from one hundred geography students drawn from form twos, four and six, twenty-five geography teachers and five school heads from five schools selected in Chitungwiza district in Harare Metropolitan Province. Data was collected through questionnaires and semi structured interviews. Findings from interviews were presented, analyzed and interpre...

The Impacts Of Chiyadzwa - Marange Diamond Mining Activities On Water Quality.

ABSTRACT Chiyadzwa under Marange tribal trust land which is located between Save and Odzi South of Mutare city is rich in diamonds. There are 5 diamond mines which are currently operating in Chiyadzwa whose mining activities have brought a myriad of environmental problems . In light of the above the research sought to establish the types of contaminants and analyse the causes of water pollution on both upper Odzi and Save catchment areas. The research was carried out using both qualitative an...

A Grounded Theory Study Of The Implementation Of Spatial Data Infrastructure In Zimbabwe; The Professional Identity Perspective

ABSTRACT Needs for spatial data are increasing due to the different uses it can be put to. Due to the progress in digitalization, the volumes of data in various fields are accumulating quickly at an unprecedented speed. Different types of spatial resources come from different units but they may be integrated effectively through SDI development so that users can easily obtain and apply the shared resources. Spatial Data Infrastructures (SDIs) enable access, sharing and propagation of spatial d...

Deadwood Production And Decomposition Rate Of Acacia Tortilis And Acacia Nilotic Around University Of Dodoma, Tanzania: The Ecological Role Of Termites In Semi-Arid Regions

ABSTRACT Studies on deadwood (DW) production and nutrient recycling through decomposition by termites in semi arid ecosystems are scarce and thus given less consideration in forest management. A study was conducted at Chimwaga forest patch of UDOM to estimate the amount of DW produced by A. tortilis and A. nilotica as well as the decomposition rate by termites during dry and rain seasons. Both random and systematic sampling techniques were adopted coupled with a completely randomized design ...

Assessment Of Species Richness And Relative Abundance Of Small Carnivores In Natural Forest And Shrub Thickets At The University Of Dodoma

ABSTRACTS Urbanization developments results in the loss and fragmentation of habitat, which can significantly alter animal communities. Wildlife species occupying higher trophic levels, such as mammalian carnivores may be especially affected by habitat alteration and concomitant losses of cover and prey. Tanzania has high carnivore diversity, 35 species or more, but relatively little is known about carnivore communities outside protected areas or the effects of urbanization on carnivore comm...

The Role Of Photovoltaic Solar Energy In Enhancing Food Security. The Case Of Pelele Solar Powered Irrigation Scheme In Ward 12 Of Gwanda District

ABSTRACT Access to reliable and affordable energy is a key lever to enhance sustainable livelihoods and an important prerequisite for agrarian economies in Sub Saharan Africa to address food security challenges faced in the region. Limited and unreliable energy supply mainly from conventional energy sources has been a major impediment to increase agricultural productivity in most irrigation schemes in Zimbabwe. Despite having the best solar radiation levels, little research has been conducted...


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