Articles
Page 7 of 1196, showing 50 records out of 59795 total, starting on record 301, ending on 350
African Journal of Biotechnology
Genetic diversity analysis among soybean genotypes using SSR markers in Uganda
July 2020
The assessment of genetic diversity among improved crop germplasm can facilitate the expansion of the genetic base for crop improvement in breeding program. However, little effort has been made to assess the level of genetic relatedness among released varieties and elite soybean [Glycine max (L.) Merr.] genotypes. The objective of this study was to determine the degree of genetic diversity that exists among released and...
African Journal of Plant Science
Biochar as an alternative growth medium for tree seedlings in the Guinea Savanna Zone of Ghana
July 2020
A good planting medium is required for raising tree seedlings in the nursery, however Guinea savanna soils are generally poor in nitrogen and organic matter. This poses a challenge in accessing fertile soil for tree nurseries in Northern Ghana. The experiment was conducted in the Nyankpala campus to explore the potential of plant biochar as growth media for raising tree seedlings. Growth media prepared from six...
African Journal of Plant Science
Lead-induced changes in germination behavior, growth and inhibition of δ-aminolevulinic acid dehydratase activity in Raphanus sativus L.
July 2020
The seed germination test under lead (Pb) stress could be a quick test to understand plant tolerance to this heavy metal. The aim of this study was to compare the germination behavior of Raphanus sativus L. germinated in solution with different increasing concentration of lead, also to assess its accumulation and toxicity. The test was carried out in an incubator at 25 ± 1°C for 7 days and in a greenhouse for...
International Journal of Psychology and Counselling
Adolescents and marijuana: Its prevalence, underpinning causes, effects and implications on the next generation
July-September 2020
It is customarily challenging and fruitless to prevent young adults and teens from drug experimentation. Yet, the onset of marijuana or cannabis use by school-age young adults and teens could be delayed with holistic interventions that aim at involving stakeholders (that is schools, families, agencies, media, etc.). The objective of this review was to sum-up continental comparative data on the prevalence of cannabis or...
International Journal of Fisheries and Aquaculture
Use of different colours of vertically-suspended structure during the hatchery rearing of juvenile landlocked fall Chinook salmon (Oncorhynchus tshawytscha, Walbaum)
July-December 2020
This study investigated the effects of coloured structures on the growth of juvenile landlocked fall Chinook salmon (Oncorhynchus tshawytscha, Walbaum) during hatchery rearing. Structures consisted of an array of four aluminum angles painted one of four colours: Silver, red, black and green, which were vertically suspended in circular tanks. After 25 days, mean total lengths and weights of individual salmon reared in...
African Journal of Microbiology Research
Comparison between wet and semi-dry anaerobic biogas diester under thermophilic and mesophilic conditions: Methane productivity and analysis of microbiota
July 2020
The current practice of using stanchion breeding cow houses results in a semi-dry manure that ideally should be used as the substrate for the anaerobic fermentation. The conventional liquid-slurry biogas fermentation is disadvantageous with high running costs due to requirement such as water addition and running efficiency, among others. This study aimed to establish a high-speed semi-dry methane fermentation system for...
African Journal of Plant Science
Effects of sowing depth on seed germination and seedling growth of Aframomum citratum (Pereira) K. Schum
July 2020
Series of investigations have been carried out on the effect of sowing depths on seed germination and early seedlings growth of Aframomum citratum and has shown that sowing depth influences germination and early growth of most plant species. Thus, the importance of varying planting depths has received much attention from researchers for some time now. The depths studied in this research were 0, 3 and 6 cm, respectively....
African Journal of Pure and Applied Chemistry
Geographical variation in total phenolics, flavonoids and antioxidant activities of Eucalyptus camaldulensis leaves in Burkina Faso
July-September 2020
This study aimed to elucidate the effect of sampling location of Eucalyptus camaldulensis leaves on antioxidant activity, total phenolic content (TPC) and total flavonoid content (TFC). Leaves of E. camaldulensis collected at three different locations in Burkina Faso (north, central, south-west) were subjected to hydrodistillation to obtain a water extract and subsequent ethanol extraction of the solid residue. The...
Journal of Public Health and Epidemiology
A comparison of male and female headed house holding of orphans and vulnerable children in Nigeria
July-September 2020
Literature revealed the prognosis of vulnerability of households headed by females in general is poor. One can imagine the situation in households occupied by orphans and vulnerable children (OVC). Orphan-hood may arise from the death of one or both parents. This study compared the situation in male and female headed households among OVC households in three selected communities in Nigeria. The survey was carried out...
Journal of Toxicology and Environmental Health Sciences
Exposure to air freshner and its distresses on the antioxidant biomarkers of male Wistar rats
July-September 2020
Air fresheners are widely used as a means of eliminating bad odour, albeit, it has been reported to be associated with some health risks. This work investigated the effect of acute exposure to air freshener on the antioxidant biomarkers of Wistar rats. Twenty-four Wistar rats were used for this study. The rats were divided into four groups of six rats each, labeled group 1, group 2, group 3, and group 4. Group 1, served...
Journal of Media and Communication Studies
Role of social media in Ethiopia's recent political transition
April-June 2020
This research aims to explore to what extent the popular social media positively and negatively affected Ethiopia's recent political transition. Further, the research focuses on how the social media played a role in leading to the overthrow of the state capture by the authoritarian and how they are playing role in the process since then. Qualitative research and analysis have been applied to depict the impact of...
International Journal of Sociology and Anthropology
Jungle justice in Lagos metropolis, Nigeria
July-September 2020
Jungle justice has added another dimension to the neigbourhood insecurity challenge in Lagos metropolis. The reoccurring lynching of suspect(s) in a crime scene, in Lagos metropolis and Nigeria, as well as, the dearth of empirical studies on this heinous crime in Nigeria motivated this study. Thus, this study anchored on Social Disorganisation Theory (SDT) of the Chicago School of Criminology, which identified...
Journal of Veterinary Medicine and Animal Health
Factors associated with infectious bursal disease vaccination failure in Dar es salaam, Tanzania
July-September 2020
Infectious bursal disease (IBD) is a viral infection that affects young chicks. The IBD outbreaks in vaccinated chickens are reported in Tanzania frequently. The current study was conducted to find out the possible causes of vaccination failure focusing on knowledge and practices of vaccine sellers and users, the immunogenic potential of currently used vaccine and the phylogenetic relationship between the vaccine and...
African Journal of Agricultural Research
A cluster analysis of variables essential for climate change adaptation of smallholder dairy farmers of Nandi County, Kenya
July 2020
Smallholder dairy farmers occupy high potential areas of Kenya and are a source of manure, crops and milk. There is need to use other means of characterising smallholder dairy farmers as they mostly practice mixed farming. The objective of this paper is to use cluster analysis method to characterize the smallholder dairy farmers with added farmer and activity data variables. Clusters of 336 farmers in this study were...
Journal of Economics and International Finance
Stimulating farmer access to bank credit in Zimbabwe: The bankers’ perspective
July-September 2020
Access to finance by farmers is recognized as a tool for poverty eradication in developing countries, where the majority depends on agriculture for survival. This study sought to establish strategies for enhancing farmer access to bank credit as prescribed by the lenders themselves. A structured interview guide collected primary data from a sample of 12 registered commercial banks in Zimbabwe, which were analysed by...
International Journal of Nutrition and Metabolism
Nutritional status and associated drivers of food choice among lactating women in Debre Birhan Town, North Shoa Zone, Amhara Region, Ethiopia: A community based cross-sectional study
July-September 2020
People’s perception of food products during food choice is a very complex phenomenon that is influenced by a wide range of characteristics that an individual, groups and local communities make. This study investigated nutritional status and associated motives of food choice among lactating women from Debre Birhan Town. Anthropometric measurements and motives of food choice questionnaire were administered among 423...
International Journal of Physical Sciences
Thermo-mechanical properties of V-5Cr-5Ti alloy: 3D molecular dynamics simulation
July-September, 2020
This paper presents the results of the study of 3D molecular dynamics simulation to investigate the thermomechanical properties of the V-5Cr-5Ti ternary alloy. The main purpose of this work is to evaluate the quality of the Finnis-Sinclair potential for V-rich V-Cr-Ti random alloys with a body-centered-cubic (bcc) structure. The results demonstrated that the elastic constants of the V-5Cr-5Ti alloy are close to the...
African Journal of Microbiology Research
Epidemiology of pathogenic microorganisms, basic diseases and clinical biomarker analysis in patients with bloodstream infections from a 3A General Hospital in Lanzhou of China
July 2020
The aim of this study is to investigate the burden of basic diseases, the epidemiology of pathogenic microbes in patients with bloodstream infections and their clinical biomarkers. Data on bloodstream infections from 2012 to 2018 were obtained from a 3A General Hospital in Lanzhou of China. 1990 patients with bloodstream infections participated in the study; their basic diseases, pathogenic microorganisms and...
African Journal of Microbiology Research
Suitability of bacterial fermentation and foil packaging of condiment from African mesquite (Prosopis africana) seeds for nutritional retention and commercialization
July 2020
The process for bacterial fermentation and foil packaging of condiment (‘Okpeye’) from African mesquite seeds was described and its nutritional enrichment and packaging improvement for commercialization were verified. The seeds (1 Kg) were cleaned, washed and boiled in autoclave at 121°C for 2 h, cooled, drained, de-hulled and divided into two portions of 300 g each. One portion was placed in sterile...
African Journal of Microbiology Research
Isolation and characterization of rhizospheric microorganisms from bacterial wilt endemic areas in Kenya
July 2020
Ralstonia solanacearum is a soil-borne bacterium causing bacterial wilt, particularly in Solanaceae crops, including tomatoes. Due to pathogen’s wide host plant range, pesticide resistance, and ability to overcome cultivars utilized for innate resistance, not even a single measure is effective against the pathogen. Screening the rhizosphere of bacterial wilt tolerant tomato plants from Bomet, Kiambu, Kajiado and...
African Journal of Plant Science
Morphological and molecular characterization of cultivated yam (Dioscorea species) in selected counties in Kenya
July 2020
This study was conducted to characterize Dioscorea spp. in Kenya using morphological and molecular characteristics. Data on 22 morphological traits were subjected to cluster analysis and multivariate analysis using principal component (PCA). The dendrogram of cluster analysis revealed three main groups: Species distribution based on PC-1 and PC-2 showed the distantly related species in each quarter; D. alata L. (1st...
African Journal of Plant Science
Evaluating the incidence and severity of rice yellow mottle virus and maize streak virus on rice (Oryza sativa L.) and associated insects in the Federal Capital Territory, Abuja, Nigeria
July 2020
Rice is an important staple food in Nigeria, affected by several diseases especially viruses. This study was carried out to evaluate the incidence and severity of two important viruses on rice plants and to identify associated insects in the Federal Capital Territory (F.C.T), Abuja in 2019. Field experiment was carried out from June to October, 2019 at the Teaching and Research Farm of the Faculty of Agriculture,...
African Journal of Business Management
Entrepreneurship in crisis situations: Determinants of entrepreneurial intentions among University Students in Yemen
July 2020
The aim of this study was to examine the entrepreneurial intentions of university students at two major universities in Yemen. The entrepreneurial intentions of students were determined using demographic, personality, environmental and situational variables. The primary data were collected through a questionnaire survey method. A total of 487 students have been included from different programs such as economics,...
African Journal of Political Science and International Relations
Stay at home: Coronavirus (COVID-19), isolationism and the future of globalization
July-September 2020
The novel Corona Virus (Covid-19) is creating havoc in the world. It is causing greatest damage to the health and economic fabrics of societies with considerable impact on individuals, families, communities, and nations in unprecedented scale. At the same time countries are taking desperate measures to curb its spread and limit its negative consequences. Some of these measures include stay at home and closed door...
International Journal of Educational Administration and Policy Studies
Semiotic procedural knowledge model on solution of problems and problem-solving analysis
July-December 2020
This study aims to use problem solving techniques in solving problems at different stages step by step. The theoretical and experimental semiotic model was developed by using the semiotic model method, which can be established with the relation of priority-recency, and an analysis of the problem solving skills of the students was made. Given that the procedural knowledge questions are used as the type of question to be...
Journal of Stored Products and Postharvest Research
Oxygen demand of bean bruchids (Acanthoscelides obtectus Say)
July-December 2020
The common bean (Phaseolus vulgaris L) is an important crop in many countries and its safe storage is crucial in maintaining a sufficient and high quality food supply for the community. A non-chemical storage technique, hermetic storage, is being used to control the bean bruchid (Acanthoscelides obtectus Say), a beetle which can cause large losses to stored beans. Experiments were carried out using hermetically sealed...
Journal of Engineering and Technology Research
Prediction behavior of high frequency modulated by a 16 lengths Golay code undergoing honey attenuation
July-December 2020
Optical microscopic analysis of honey is time consuming due to the period needed to prepare samples. Time reduction could be achieved with ultrasound microscopy. This paper investigates the behavior of 125 MHz signal modulated by 16-bits Golay code spread out through a honey sample containing pollen. A bipolar phase shift keying (BPSK) modulation of 125 MHz frequency by 16-bits Golay code was implemented in...
African Journal of Biotechnology
Evaluation of poultry waste medium and light quality for lipid accumulation in fresh water green microalgae isolate
July 2020
The global quest for production of biofuel at a competitive price with fossil fuel has driven research to the exploration of organic waste as a cost-effective growth medium for microalgal biodiesel production. In this study, poultry waste extract (PWE) was explored as growth medium for efficient biomass and some intracellular content accumulation by Chlorella sp. isolate for eight days. The analysis of the poultry waste...
Journal of Development and Agricultural Economics
Producers supplying strategic network, value creation and exporting SME growth
July-September 2020
Strategic networks of agricultural suppliers for the creation of value added are an interesting field of research in the developing countries. Indeed, various scientific works were interested with social networks as well as on their members’ relationship and on their management. However, social networks as strategic suppliers are able to solve SME’s supply credit problems; the need to analyze networks with a...
Educational Research and Reviews
Violence in physical education in a disadvantaged congolese environment: Perceptions of students and teachers
July 2020
This study identifies and analyzes the different expressions of violence during physical education courses among a school population, and the pedagogical strategies of teachers to reduce violence in Brazzaville, Congo. Based on a survey of students of high schools from disadvantaged environment and teachers, a cross-sectional and analytical survey was carried out from January to April 2019. The activity...
Journal of African Studies and Development
Proliferation of churches in Nigeria: Causes, impacts and likely solutions
July-September 2020
The study aims to estimate the effect, causes and probable solutions of church proliferation in Nigeria. The study was based on the analysis of fifty structured questionnaires that were distributed among people both in and out of Churches of different denominations using purposive sampling technique method. Statistical descriptive method was used to analyze the information collected from the respondents. The result of...
African Journal of Agricultural Research
Evaluation of cowpea rust disease incidence and severity on selected cowpea genotypes in Western Kenya
July 2020
Cowpea production is common among smallholder subsistence farmers of Western Kenya due to its wide ecological adaptation. However, this crop is affected by cowpea rust Uromyces phaseoli var vignae (Baarel) Arth disease, causing economic yield losses with limited control measures. This study therefore, evaluated cowpea rust disease incidence (DI) and severity (DS) on growth of selected improved cowpea genotypes. A...
African Journal of Agricultural Research
Nitrate contamination of groundwater: An issue for livelihood in Jaffna Peninsula, Sri Lanka
July 2020
Groundwater stored in large cavities and channels of Miocene limestone is the only source of portable water in Jaffna Peninsula, Sri Lanka. It is increasingly exploited and polluted by various contaminants that results in less availability of potable water. Nitrate contamination in drinking water is one of the major concerns which causes severe health impacts, such as methemoglobinemia especially in infants and...
Journal of Public Health and Epidemiology
High-accuracy detection of malaria mosquito habitats using drone-based multispectral imagery and Artificial Intelligence (AI) algorithms in an agro-village peri-urban pastureland intervention site (Akonyibedo) in Unyama Sub–County, Gulu District, Northern Uganda
July-September 2020
The purpose of this research is to design, deploy and validate artificial intelligence (AI) algorithms operating on drone videos to enable a real time methodology for optimizing predictive mapping unknown, geographic locations (henceforth, geolocation) of potential, seasonal, Anopheles (gambiae, and funestus) larval habitats in an agro-village, epi-entomological, intervention site (Akonyibedo village)...
African Journal of Agricultural Research
Determinants of ecosystem-based adaptation to drought in the central cattle corridor of Uganda
July 2020
Ecosystem-based Adaptation (EbA) is widely recognised as an important strategy for strengthening climate change resilience. Nevertheless, there is limited evidence on the factors that facilitate or impede EbA for ecosystem services, adaptation benefits and livelihood improvement. In this study, the determinants of EbA to drought were assessed. A mixed quantitative and qualitative cross-sectional survey among 183 farmer...
African Journal of Agricultural Research
Cracking and breaking response in four rice varieties as influenced by fertilization regime and storage duration
July 2020
In Northern Ghana, harvesting of the bulk of paddy, which is cultivated under rain-fed conditions, coincides with the harmattan season. This season is characterized by low relative humidity and dry weather conditions which hasten drying and increase the tendency of the paddy to crack during milling. The farmers also store paddy for longer periods in anticipation of higher price in the open market, thus the paddy may...
African Journal of Agricultural Research
Effect of growth and yield modelling on forest regulation and earnings
July 2020
The elaboration of a forest schedule involves constructing and solving a forest regulation model. The regulated structure is not easy to obtain, considering the fluctuations in the effective planting area during the planning horizon, technological advances, and changes in annual demand. Nevertheless, the establishment and implementation of a regulation model often results in an improvement of the forest, in terms of the...
African Journal of Microbiology Research
Bridging technique failure through low-tech improvisation: A case study of food microbiology
July 2020
Modern technology for food safety studies includes standardized protocols and equipment. However, appropriate technology needs to step in to bridge technology dys- or malfunctioning. We examined different low-tech methods for extraction of bacteria from fresh vegetables. Standard equipment including stomacher and filter bags were compared to extraction using bread stick and alternative filter material (nylon stocking,...
Journal of Economics and International Finance
Micro-determinants of informal employment in Côte d’Ivoire: The role of socio-demographic factors
July-September 2020
This paper proposes to identify the micro-determinants of informal employment in Côte d’Ivoire, focusing on socio-demographic factors. Using data from the National Survey on Employment and the Situation of the Informal Sector (ENSESI) and the Logit method, the empirical results indicate that unschooled and less qualified individuals are more likely to be in an informal situation; that the probability of...
Educational Research and Reviews
The relationship between perceived manager support and work commitments of sports instructors
July 2020
The aim of this study is to investigate the perceived role of supervisor support in predicting the work engagement levels of instructors working in sports venues. Sample of this study consists of a total of 254 instructors, 88 males and 166 females, age ranged 22 to 63, and working in various sports venues. Personal information form, perceived supervisor support and work engagement scale applied to the individuals in...
International Journal of Psychology and Counselling
Adolescents’ perception of the impact of condom use on sexual behaviours: Evidence from Ghana, a developing country
July-September 2020
Adolescence is a critical stage in human life. Adolescents’ perception of the impact of condom use on sexual behaviour has been studied in developed countries. However, not much is known about this phenomenon in Ghana. The study investigates the perception of adolescents regarding the impact of condom use on sexual behaviours. Simple random and stratified sampling techniques were employed to select the study...
International Journal of Educational Administration and Policy Studies
Challenges facing continuing professional development (CPD) of academic staff of the colleges of education in Ghana
July-December 2020
Professional development is critical in the life of every organization in positioning workers to meet changing trends of globalization. This study seeks to look at a critical analysis of the challenges facing Continuing Professional Development (CPD) of academic staff of the colleges of education in Ghana. The exploratory, descriptive and evaluative case study approach that combined both qualitative and quantitative...
Journal of Horticulture and Forestry
Plant species and their importance to housing in the Turkana community, Kenya
July-September 2020
There are many native species that are important to local communities globally. There have been studies on the importance of these plant species for many uses by local communities. Though, there is scanty information on these species’ recognition by researchers. Despite the harsh climatic conditions in Turkana (semi-arid to arid), the community has over the years developed strategies for conservation of some...
African Journal of Agricultural Research
Relationship between leaf rolling and some physiological parameters in durum wheat under water stress
July 2020
Durum wheat is an important staple food in Morocco. Wheat and barley are mostly grown in drought prone areas in this country. Drought is the most limiting factor under Mediterranean climate. Leaf rolling ability has been identified as a potential selection criterion for drought tolerance in cereals. The objective of this study is to test this hypothesis. The role of leaf rolling in water stress tolerance was assessed in...
African Journal of Agricultural Research
Assessment of the effects of water stress on seed yield of common bean genotypes
July 2020
Drought stress is among the most important abiotic factors that contribute to the significant yield reduction of common bean (Phaseolus vulgaris L.). Due to unreliable and poor distribution of rainfall, drought tolerance has become the important train in common bean in bean growing areas. The objective of this study was to evaluate 16 common bean genotypes for drought tolerance under three moisture regimes and identify...
African Journal of Pure and Applied Chemistry
Carotenoids identification by HPTLC-MS and vitamin C content of fruits of Saba senegalensis (A. DC) Pichon
July-September 2020
Saba senegalensis fruits have gained more attention in recent years due to their antioxidant compounds such as carotenoids, phenolics, vitamin C. This study was designed to identify the main carotenoids from S. senegalensis fruits including phenolics and vitamin C quantifications. Carotenoid profiles from tissues of these fruits have been characterized by High Performance Thin Layer Chromatography- mass spectrometry...
African Journal of Biotechnology
Next generation sequencing as a method to verify virus elimination using heat treatment and meristem tip culture in the five most widely used sweet potato varieties in Ethiopia
July 2020
Sweet potato (Ipomoea batatas L. Lam) has become one of the staple crops in Africa in the last 20 years. In Ethiopia, sweet potato is the second most widely grown root crop and is the first regarding the production per hectare. Thus, there is a great demand of planting material throughout the country. Currently, planting material is usually obtained from own previous season harvest, local markets or from the neighboring...
African Journal of Biotechnology
Analysis of genetic diversity in four Sudanese provenances of Balanites aegyptiaca (L.) Del. based on random amplified polymorphic DNA (RAPD) marker
July 2020
Balanites aegyptiaca (L.) Del. (Heglig) is a multipurpose tree with considerable potential. The wide range of environments under which it is growing suggests high pattern of variation among and within locations. The scrutiny was undertaken to assess genetic diversity among and within four geographical genotypes of Heglig growing naturally in four different regions of Sudan based on their seed performance using random...
African Journal of Microbiology Research
Antimicrobial activity of coconut water, oil and palm kernel oils extracted from coconut and palm kernel on some plasmid-mediated multi-drug resistant organisms associated with food spoilage
July 2020
This study is aimed at evaluating the antibacterial and anticandidal activity of coconut oil, fermented and unfermented coconut water and palm kernel oil (PKO) on Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa, Corynebacterium sp. and Candida albicans. The coconut water was fermented with Saccharomyces cerevisiae and the pH, sugar and alcohol contents were determined before and after fermentation. The...
International Journal of Psychology and Counselling
Stigma and self-efficacy as predictors of intention to seek help among American and Japanese college students
July-September 2020
The aim of this study was to examine how people within individualistic and collectivistic cultures differ in their intentions to seek professional mental health help. As such, it was crucial to examine possible predictors of intention to seek help for mental health issues. We explored the cultural differences between American and Japanese students and their intentions to seek help from mental health professionals. A...
Page 7 of 1196, showing 50 records out of 59795 total, starting on record 301, ending on 350
