Articles
Page 1 of 1176, showing 50 records out of 58772 total, starting on record 1, ending on 50
March 2020
Journal of Ecology and The Natural Environment
Minerology, geochemical composition and geotechnical properties of termite mound soil
Termitarian, the epigeal biogenic structure constructed by termites are widespread in the forest and derived savannah regions of Nigeria. Soil modification, with particular focus on the mineralogy, variation in geochemical composition and geotechnical properties of termite mound soil samples collected from nine location in the Ika area, Delta State of Nigeria are the objectives of this report. The major elements...
March 2020
African Journal of Political Science and International Relations
The impact of China on the agency and negotiating power of African countries: Cases of Angola and Niger
The recent surge in cooperation between China and African countries challenges the western aid model thus giving African countries a better leverage and negotiating power in their relation with the west. It is obvious that the Chinese presence in Africa is motivated by its economic and energy security agenda, which consist in securing natural resources to ensure security of supply and demand in its domestic market. This...
January 2020
African Journal of Environmental Science and Technology
Agro-ecological assessment of physico-chemical properties of soils in Kulfo Watershed, South Western Ethiopia
Variation in physical landscape of the highlands gives rise to variations in agro-climatic and soil parent materials in Ethiopia. The aim of this research is to characterize the physio-chemical properties of soils in Kulfo watershed. For the study, primary data from transect walks, composite soil samples and GPS points and secondary data from satellite imaginaries, National Metrological Agency and Central Statistical...
January 2020
African Journal of Environmental Science and Technology
Management of world energy resources (Renewable energy): Choices for the future?
Energy enables technical innovations, and progress in health, agriculture and transportation. Socio-economic development and energy production are linked, although some energy-rich countries are poor. Developed countries are the biggest consumers. Energy consumption increases with increase in world population. Fossil energies are dominantly consumed. Nuclear energies are often decried because of serious accidents....
January 2020
Educational Research and Reviews
Comparative analysis of psychometric properties of mathematics items constructed by Waec and Neco in Nigeria using item response theory approach
West Africa Examination Council (WAEC) and National Examination Council (NECO) are the two major examination bodies saddled with the responsibility of awarding Senior Secondary School Certificate in Nigeria. This study examined the comparability of the psychometric properties of the items constructed by the two examination bodies using Item Response Theory (IRT) approach. Three parameters (difficulty, discriminating and...
January 2020
Educational Research and Reviews
The relationship between teacher self-efficacy beliefs and educational beliefs of pre-service teachers
The purpose of this research is to determine the relationship between ‘educational beliefs’ and ‘teacher self-efficacy perceptions’ of pre-service teachers in the faculty of education. A total of 1002 pre-service teachers, 463 final year undergraduate and 539 certificate program students, participated in the study voluntarily at the Necatibey Faculty of Education in Balıkesir University....
January 2020
Educational Research and Reviews
Enhancing students’ academic performance in Chemistry by using kitchen resources in Ikom, Calabar
This paper seeks to investigate how students’ performance in Chemistry can be enhanced by using kitchen resources in Calabar. The kitchen resources used included a piece of white paper, a swab, lemon juice and candle. These were used to show that paper cellulose was oxidized by flame due to the catalysis of lemon juice acid. Other materials used were empty bottles of water, a balloon, a teaspoon, a glass, vinegar...
January 2020
African Journal of Environmental Science and Technology
Design and construction of fixed dome digester for biogas production using cow dung and water hyacinth
Engineered biological systems used for resource recovery often utilize anaerobic digestion to treat organic wastes by reclaiming the carbon as energy (methane gas) and a soil amendment (biosolids). This study explored the production of biogas from co-digestion of cow dung waste and water hyacinth (Eichhornia crassipes) using anaerobic biological conversion. Cow dung and water hyacinth biomass feedstock were collected...
January 2020
Journal of Public Health and Epidemiology
Hypertension and associated factors in Atlantic region of Benin in 2015: A community-based study
Hypertension is a major public health problem that does not spare Sub-Saharan Africa and especially Benin. There is scarce data on the factors associated with this condition in areas of high population pressure in Benin. We investigated factors associated with hypertension in Atlantic region. We conducted a cross-sectional survey in Benin in the Atlantic region for people aged 18 and over. This was an analysis of data...
January 2020
Journal of Public Health and Epidemiology
Factors associated with low birth weight at Tchamba District Hospital, Togo: 2014 to 2016
In 2013, in Togo, the Demographic and Health Survey III estimated the proportion of low birth weight at 10%. The objective of this study was to determine the factors associated with low birth weight in Togo. We conducted a case-control study on newborn records from Tchamba Hospital from 2014 to 2016. Cases were newborns with birth weight strictly below 2500 g whereas controls were those with a weight greater than or...
January 2020
Journal of Entomology and Nematology
Persistent of low-level diapause and generation effect in Microplitis rufiventris wasps under mass rearing conditions
The solitary endoparasitoid, Microplitis rufiventris is considered one of the principal wasps on the cotton leaf moth, Spodoptera littoralis larvae. It has a strange sort of obligate diapause. The data present an evidence of persistent low-level diapause throughout the year and every year that observed under mass rearing conditions. When continuous rearing was done throughout the year at 25°C and 12/12 h L/D, a small...
January 2020
Journal of Entomology and Nematology
Infestation rate of Mangifera indica fruit fly in Sudanese zone of Mali
Mali has a potential for mango production across the country. However, this plant is facing phytosanitary problems mainly related to fruit flies. The study was conducted to evaluate the infestation rate of fruit flies on mango varieties in Sudanese zone of Mali (Kati). Stung mangoes were weekly collected from three sites. Fruits were weighted and placed inside plastic bags containing sand to the monitor larva...
January 2020
Journal of Horticulture and Forestry
Vegetable soybean, edamame: Research, production, utilization and analysis of its adoption in
Sub-Saharan Africa
Food and nutritional insecurity constitute a main challenge in most Sub-Sahara African countries. Efforts to provide diets with sufficient nutrients such as proteins, carbohydrates, vitamins and essential minerals should include the introduction of new vegetable and legume crops. Vegetable soybean “edamame”, is a nutritious vegetable legume well known and consumed in Asia and America, but underutilized in...
January 2020
Educational Research and Reviews
The relationship between emotional literacy, cognitive flexibility and counseling self-efficacy of senior students in psychology and psychological counseling and guidance
The aim of this study was to investigate the relationship between emotional literacy, cognitive flexibility and counseling self-efficacy among senior students studying in psychology and psychological counseling and guidance departments. Participants of the study were 397 (306 female and 91 male) undergraduate students enrolled in Medipol University, Trakya University, Ankara University, Pamukkale University, İstanbul...
January 2020
Journal of Horticulture and Forestry
Management and the influence of socioeconomic factors on tree species diversity in traditional agroforestry practices in Demba Goffa District, South Ethiopia
The study was designed to provide a baseline data on status of woody species diversity, local knowledge in use and the influence of socioeconomic factors. Interview and discussion with key informants and formal survey with structured questionnaires were employed to collect primary data. The assessment of tree species richness was done by inventorying trees at the sampled plots of the different agroforestry practices...
January 2020
International Journal of Biodiversity and Conservation
Woody species diversity, structure and biomass carbon of parkland agroforestry practices in Gindeberet District, West Shoa Zone, Oromia Regional State, Ethiopia
Parkland agroforestry woody species are prominent features in many landscapes worldwide, and their ecological, social and economic importance is widely acknowledged. It is the traditional agroforestry systems from different countries and is almost a universal occurrence in Ethiopia. This study was conducted in Gindeberet District, West Shoa Zone, Oromia Regional State, Ethiopia to assess the parkland agroforestry woody...
January 2020
International Journal of Biodiversity and Conservation
Biological diversity of agroforestry species in the socioeconomic context of producers in the Barh-kôh Department, Southern Chad: Case of Kissimi, Mayelé and Badara villages
This study aims to better understand the woody biodiversity and the relationship between the state of tree cover in the Agroforestry Park and the management units, and also to know the socio-economic role played by the trees of the parks. The study was conducted in 3 villages in Barh-kôh Department, Chad, between May and November 2018. A plot of 2500 m2 has been materialized in each management unit and the species...
January 2020
International Journal of Biodiversity and Conservation
Forest structure and carbon stocks of Osun-Osogbo Sacred Grove, Nigeria
Forest trees and soil are considered for climate change mitigation. Forest structure of the grove is required to predict its capacity to mitigate climate change. Therefore, the objective of this study was to determine the forest structure and carbon stocks of Osun-Osogbo Sacred grove. Five (30 × 30 m2) plots were demarcated in Old-growth forest (OF) and Re-growth forest (RF). Trees with ≥10 cm...
January 2020
Journal of Medicinal Plants Research
Antimicrobial, antioxidant and cytotoxic activites and chemical profile of species of Miconia Ruiz & Pav., Clidemia D. Don and Tibouchina Aubl. (Melastomataceae)
The resistance of microorganisms to current antimicrobials, and the deleterious effects caused by the excessive free radical manufacturing in the human body and their relationship with increasing global incidence of cancer, has led to a continuous search for new chemical agents that can contribute to the fight against these ills. The objective of the present work was to evaluate the antimicrobial, antioxidant and...
January 2020
Journal of Medicinal Plants Research
Dominant lethal mutations in rats fed extracts of Mucuna urens (Linn.)
Dominant lethal mutation assay was carried out on rats after being treated with graded doses of ethanol extract of the seeds of Mucuna urens. Male albino rats (Wistar strain) were caged in three groups labeled, groups II, III and IV and treated with three different dosages of the ethanol extract of the seeds of M. urens; 70, 140 and 210 mg/kg body weight (BW), respectively, for 14 days. The positive control animals...
January 2020
International Journal of Medicine and Medical Sciences
Cause specific and trends of mortality in Nigeria: A six-year study of a tertiary hospital
Mortality data necessary for proper healthcare planning, policy formulation, and implementation is hampered by a decline in hospital autopsy practice. Therefore, non-autopsy based death profile reviews provide a framework for the presentation and discussion of reliable mortality data. This study aims to present the general mortality profile of the University of Port Harcourt Teaching Hospital, Rivers State, Nigeria....
January 2020
African Journal of Pharmacy and Pharmacology
Formulation and enhancement of dissolution rate of poorly aqueous soluble drug Aceclofenac by solid dispersion method: In vitro study
Solid dispersion technique was successfully used to enhance the dissolution of poorly aqueous soluble drugs aceclofenac. Four carriers Hydroxyl propyl methylcellulose (HPMC), polyvinyl alcohol (PVA), Mannitol and Dextrose in two ratios (1:2, 1:3 w/w) were used to prepare solid dispersion. Eight different formulations were designed by the varying carrier and the drug: Carrier ratio and solvent wetting method was used for...
January 2020
International Journal of Livestock Production
Immune response following Newcastle disease immunization and growth performance of kuroiler, broiler and local Tanzanian chickens
Chicken is a major livestock species raised by smallholder households in rural areas in developing countries of Sub-Saharan Africa as a chief source of meat protein and income generation. However, Newcastle disease largely compromises the production of this precious bird under backyard production settings. The purpose of the study was to assess antibody responses and growth performance following Newcastle disease...
January 2020
Journal of Development and Agricultural Economics
An efficiency assessment of irrigated tomato (Solanum lycopersicum) production in the Upper East Region of Ghana
This study employed the input-oriented DEA approach with variable returns to scale assumption to assess the technical, scale, allocative and economic efficiencies of 124 randomly selected tomato farmers under irrigation in the Upper East Region using data of the 2017/2018 production season. The mean technical efficiency and scale efficiency were 97.1 and 97% respectively with many farmers experiencing increasing returns...
January 2020
African Journal of Agricultural Research
Management strategies for the noxious invasive parthenium weed (Parthenium hysterophorus L.)
in Uganda
Parthenium weed is a noxious invasive species that has negative effects on agriculture and also causes allergic reactions in humans. The goal of this study was to evaluate several management strategies for parthenium weed and assess the suitability of each control measure for farmers, and other stakeholders in Uganda. Field experiments were conducted in a completely randomized design, and the quadrat sampling method...
January 2020
African Journal of Agricultural Research
Evaluation of the pH of solid residues generated in the cellulose industry adequate to the sludge hygienization for use in agriculture
This paper looks into the possibility of using solid residues generated in the cellulose production process to hygienize sewage sludge for fertilization. During the cellulose fabrication process, dregs, grits and vegetable biomass ashes are generated. Seven experiments were conducted in the Hydraulic Research Institute´s laboratory at UFRGS, in order to determine the pH values of the three residues in...
January 2020
African Journal of Agricultural Research
Sources of productivity growth in Ethiopian agriculture
In Ethiopia, agricultural production and productivity are very low, and hence increase in production and productivity are vital to meet increasing food demand. This study identifies and quantifies the main sources of productivity growth in Ethiopian agriculture using the translog (TL) stochastic input distance function and the Ethiopian Rural Household Survey (ERHS) panel dataset. The true fixed effects (TFE)...
January 2020
African Journal of Biotechnology
Involvement of class 1 and class 2 integrons in dissemination of tet and catA1 resistance genes of Salmonella enterica from children with diarrhea in rural Burkina Faso
With high annual mortality rates among young children, antimicrobial resistant salmonellosis is considered a major public health concern worldwide. Antimicrobial resistant salmonellosis is a worldwide health issue, particularly in low income countries with high microbially-derived food contaminations. As a result, it is important to better understand the biological factors that may control these bacteria’s...
January 2020
African Journal of Biotechnology
Impact of transgenic conversion on the characteristics of Burkina Faso cotton
Genetically modified cotton (GMC) was compared with two conventional cultivars, using data from trials and commercial farms. Objectives were to highlight disparate agronomic and technological performance parameters and identify perspectives to Burkina Faso comeback to GMC. Results showed that compared materials are similar for most agronomic characteristics, except fiber percent. As this important parameter is...
January 2020
African Journal of Biotechnology
Effect of two agro-pedo-climatic zones, drying methods and pelleting processes on chemical composition of Manihot esculenta (sp.), Leucaena leucocephala and Cajanus cajan
In tropical and subtropical countries, livestock productivity may be affected by the availability of food resources and the high prevalence of gastrointestinal pathogenic nematodes. The classical method of control using anthelmintic drugs is becoming decreasingly efficient because of a generalised resistance of the gastrointestinal nematodes suppress (GIN) to most of the drugs. In small farms, protein-rich biomasses...
January 2020
African Journal of Cellular Pathology
Phytochemical and in vitro antioxidant studies on methanol extract of Vernonia calvoana leaf and its polar fractions: Preliminary study
This study aims to screen possible antioxidant potentials of methanol extract and polar fractions of Vernonia calvoana leaves and its phytochemical constituents since the leaves are used ethno medically in managing ailments like wounds, blood pressure, inflammation, arthritis, and bone diseases. Dried leaves (900 g) were ground and de-fatted with n-hexane. The dry marc was extracted using 80% methanol and water....
January 2020
International Journal of Nursing and Midwifery
Work engagement among midwives working at advanced perinatal care facilities in Japan
This study seeks to clarify the current situation and associated factors regarding Work Engagement (WE) among midwives working in advanced care facilities, which bear the brunt of care for high-risk pregnancies, as well as the contribution of WE to quality of care. A self-administered questionnaire survey was conducted in 2016 with the participation of 503 midwives working in 36 general perinatal maternal and child...
January 2020
Journal of Geology and Mining Research
Anisotropic properties of the near-surface in South-Western Niger Delta: Implications on
geotechnical constructions
The near-surface anisotropic properties within the South-Western Niger Delta were investigated to determine their impacts on geotechnical constructions. Uphole data analyses reveal a weathered layer that is thickest in the NW, E and SE with an average of 4.2 m and thinnest in the North-Central with a value of 3.8 m; a sub-weathered layer that is thickest in the NW and SW with an average of 32.1 m and thinnest in the SE...
January 2020
African Journal of Mathematics and Computer Science Research
Volatility measure of Nigeria crude oil production as a tool to investigate production variability
The interest to carry out volatility analysis of crude oil production in Nigeria in this paper is motivated by the shortfalls in quantities of crude oil produced in recent past, given the country’s high dependence on oil and its contribution to the nation’s economic development. In 2016 precisely, the country experienced drastic instability in prices of crude oil at international markets and dwindling...
January 2020
Scientific Research and Essays
Preparation of Laundry Soap from Used Cooking Oils: Getting value out of waste
Palm oil is commonly used to prepare laundry soap by treating it with alkaline solutions. However, using it for this purpose is becoming expensive as palm oil is imported from few major exerting countries. Moreover, it is used for biodiesel production. Therefore, looking for alternative raw material that substitutes palm oil for soap production is imperative. Used cooking oils (UCOs) are good candidates in this regard....
January 2020
Educational Research and Reviews
Preparation techniques for multiple-choice possibility measurement tools (MCPMT) in education
This study draws on the understanding that when the correlation between variables is not known yet the non-linear expectation in the correlation between the variables is present, non-linear measurement tools can be used. In education, possibility measurement tools can be used for non-linear measurement. Multiple-choice possibility measurement tools (MCPMT) can be prepared similarly to conventional multiple-choice...
January 2020
African Journal of Plant Science
Bioregulator and foliar calcium supplementation in soya (Glycine max L.)
Flower and pod abortions in large quantities are commonly observed in soybean plants. In normal conditions of crop cultivation, flower abortion is commonly above 60%. Among the strategies that may promote great flower and pod set in soybean, there is the use of plant growth regulators and foliar applications of calcium. Thus, this study aimed to evaluate the effects of different doses of plant growth regulator and the...
January 2020
African Journal of Plant Science
Influence of soil conservation practices on soil moisture and maize crop (Zea mays L.) productivity in Centre Benin
Soil quality constitutes a major factor for crops growth. This study aimed at determining the sustainable soil conservation practices that would increase maize growth as well as production and improve the soil moisture. Two experimental sites were chosen: Dan localized on Acrisol and Za- zounmè localized on ferralsol. Two cropping seasons were investigated: the long rain seasons of 2018 and 2019. The experimental...
January 2020
Journal of Toxicology and Environmental Health Sciences
Study of pesticides use conditions in cashew production in Côte d’Ivoire
This work aims to promote the rational use of agrochemicals in cashew cultivation by evaluating health prevention culture and environmental preservation levels in cashew producers’ practices in Côte d’Ivoire. A cross-sectional study was conducted from April 2017 to August 2018 in the 3 main cashew production areas (Mankono, Dabakala and Bondoukou). A total of 386 cashew farmers randomly selected were...
January 2020
Journal of Geology and Mining Research
Applications of remote sensing and geographic information system (GIS) in regional lineament mapping and structural analysis in Ikare Area, Southwestern Nigeria
An attempt was made to use remote sensing technique to analyze some structural components of the metamorphic basement complex of the Ikare area in the SW Nigeria. Multiple data sets coupled with application of directional filtering techniques were used to extract linear features from Landsat ETM+ image with a view to improving on already produced regional structural map of the area and also determine a fast and cost...
January 2020
African Journal of Biotechnology
Bacterial and vermi-remediation of soil contaminated with chlorpyrifos insecticide
This study aimed at investigating the effect of consortia of three types of indigenous bacteria (Corynebacterium sp., Sphingobacterium gobiense and Kocuria flava) and earthworm (at 5 and 10 earthworms/kg soil) and their combination on the percentage removal of chlorpyrifos from chlorpyrifos contaminated soil in Sudan. Silt soil (Gerf soil) samples were mixed with known concentration of chlorpyrifos (450 mgkg-1) and...
January 2020
African Journal of Biotechnology
Studies on some major yield responsive genes in selected rice (Oryza species) cultivars grown in Nigeria using candidate gene SSR-based markers approach
This study was aimed at determining the presence of five major yield responsive genes shown to be among key determinants of rice yield in ten rice cultivars grown in Nigeria using candidate gene SSRs markers (Cg-SSRs). DNAs were extracted from young leaf samples using optimized cetyltrimethylammonium bromide (CTAB)-extraction method. An established gene sequences for high yielding rice Nipponbare cultivar for the five...
January 2020
Journal of Medicinal Plants Research
The effect of Thymus vulgaris L. on renal and liver toxicity in wistar rats exposed to aluminum
The main sources of human exposure to aluminum are found in the extensive presence of the metal in the environment and its growing industrial applications. The present study was carried out to determine the effectiveness of the Thymus vulgaris L. extract in alleviating aluminum chloride (AlCl3) toxicity on biochemical and antioxidant parameters. The experiment’s rats were divided into five groups: a control group;...
January 2020
African Journal of Biotechnology
Amino acyl tRNA synthetase inhibitors is therapeutics for gliomas at sub nanomolar concentrations
Glioblastoma is the most malignant and fatal of all primary brain tumors. Each year in the United States, about 22,000 cases of glioma are diagnosed and about 70% of these patients die. The current treatment modality options available for glioma patients are limited to temozolomide, radiation, and surgery. The poor outcome with these treatment options has necessitated the search for a better chemotherapeutic strategy to...
January 2020
African Journal of Biotechnology
Lack of association of toll-like receptor 2 rs3804100 polymorphism with paediatric tuberculosis in South Africa
Toll-like receptor 2 (TLR 2) genetic polymorphisms are important factors that are involved in the development of clinical tuberculosis. In this study, a single nucleotide polymorphism of the immune response protein molecule, toll-like receptor 2 designated as rs3804100 involving T/C polymorphism was carried out by genotypic analysis of DNA obtained from blood samples of the paediatric population in South Africa...
January 2020
African Journal of Agricultural Research
Economic assessment of biological weed control using cover crop mixtures in maize production
The economics of using mixtures of a vegetable cowpea, Vigna unguiculata subsp. sesquipedalis L., known locally as ‘Akidi’ (A) in Eastern Nigeria, melon (M) and sweet potato (S) Ipomea batatas for weed management in maize were evaluated between 2007 and 2009 in Taraba State, College of Agriculture Teaching and Research Farm, Jalingo, Treatments include 20,000(1), 30,000(2) and...
January 2020
African Journal of Microbiology Research
Efficacy of two diagnostic tests for the detection of infectious bursal disease viruses in chicken from different types of bursal samples
Infectious Bursal Disease (IBD) is an economically important irreversible immunosuppressive disease of young birds. The present study was designed to confirm the efficacy of two common diagnostic tests for the detection of Infectious Bursal Disease Virus (IBDV) from the three types of bursal samples collected from a recent outbreak in layer and broiler chickens of Gazipur district, Bangladesh. This study compared the...
January 2020
African Journal of Microbiology Research
Microbiological and parasitological contamination of vegetables, water and soil in rural communities
Microbiological and parasitological contamination of vegetables, water and soil in rural communities of a municipality in the state of Bahia, Brazil, was assessed. Samples of Lactuca sativa, L., Coriandrum sativum and Solanum lycopersicum, soil, and irrigation water were analyzed between August and October, 2015. Total coliforms (TC), Escherichia coli, molds and yeasts on vegetables, soil and water, heterotrophic...
January 2020
African Journal of Plant Science
Grain morphological characterization and protein content of sixty-eight local rice (Oryza sativa L) cultivars from Cameroon
Rice (Oryza sativa L.) cultivated in Cameroon is appreciated by consumers for its nutritive quality and good taste. Diversity of 68 local rice cultivars was investigated via grain morphology and protein content characterization. The size and shape of grains were determined and used with yield parameters to classify the cultivars and perform Principal Component Analysis (PCA). Total protein content and glutelin content...
January 2020
Journal of Medicinal Plants Research
Advances in the research of Adenanthera pavonina: From traditional use to intellectual property
Adenanthera pavonina, an Asian native leguminous, is a well known highly used plant in traditional medicine. Such broad herbal medicine applications motivated several researchers to study its chemical composition, mainly of its leaves, seeds, and barks, besides the pharmacological effects aiming to demonstrate scientific evidence of its empirical uses. Most studies have been conducted with plant derivatives, and more...
Page 1 of 1176, showing 50 records out of 58772 total, starting on record 1, ending on 50
