Articles
Page 2 of 1212, showing 50 records out of 60567 total, starting on record 51, ending on 100
Educational Research and Reviews
Difficulties encountered by students during distance education in times of confinement in Turkey
March 2021
This article presents the issue of distance education in times of confinement. In particular, it points out the difficulties encountered by masters and doctoral students at French Language Teaching Department (FLT) of Marmara University during distance education. In this research, a semi-structured interview form, one of the qualitative research methods, was applied to 20 students. The data was collected from May to...
African Journal of Agricultural Research
Groundnut (Arachis hypogaea) pod and haulm production in the tropical legume project States, Nigeria
March, 2021
The production of groundnut pod and haulm is one way of addressing the challenge of scarcity of livestock feed as well as improving the incomes of small-scale farmers. This study examines the revenue associated with groundnut pod and haulm production, using data obtained from 253 participating farmers. The data was analyzed using descriptive and inferential statistics. Results showed that average haulm yield ranged from...
International Journal of Fisheries and Aquaculture
Enhancing the fisheries sector of African Great lakes: Value chain analysis of the Tanganyika Sardine (Limnothrissa miodon, Boulenger 1906) from Lake Kivu, Rwanda
January-June 2021
Lake Kivu is experiencing unprecedented decline in production of Tanganyika Sardine (Limnothrissa miodon). This study sought to characterise the value chain of this fish species so as to chart its sustainable utilisation. The study performed in 2015 found two chains; an informal chain that takes 30% of the production and a formal chain that handles 70%. The average catch of sardine was 30 kg/day in the high production...
Journal of Electrical and Electronics Engineering Research
Wire antennas for textiles applications
January-June 2021
This paper investigates the use of a Genetic Algorithm to produce an optimized compact monopole antenna for textile application. The antenna characteristics are examined using the Numerical Electromagnetic code (NEC2) with genetic algorithm (GA). The design objective for the antennas considered here is to drive the S11 to be less than or at least, as close as possible to -10dB, targeting this application (850-950 MHz)...
Journal of Development and Agricultural Economics
Python farming in Zimbabwe: Assessing local appetite for a novel agricultural system
January-March 2021
Python meat is a traditional but small source of protein throughout much of sub-Saharan Africa, but supply is exclusively from wild harvest. We build on recent evidence that supports snake farming as a viable and sustainable small-scale livestock system in Asia. We explore python farming as a strategy for enhanced food security in Zimbabwe. Our survey results highlight challenges, including drought and human-wildlife...
Journal of Development and Agricultural Economics
Determinants of participation in non-farm activities and its effect on household income: An empirical study in Ethiopia
January-March 2021
Undertaking non-agrarian income-generating activities to reduce overreliance on agriculture, production failures, and income fluctuations is a household-amenable, self-insurance mechanism, which provides employment opportunities and capital investment. This article examines the determinants of participation in non-farm activities and effect on household income. Heckman two-step procedure was used to analyze a three-wave...
African Journal of Biotechnology
Comparison of homogenization methods for extraction of maize cob metabolites
March 2021
Previous proteomic studies have shown maize cob tissue to have an essential role in pathogen defense. Currently, there are no studies published regarding neither maize cob metabolomic profiles nor an accepted method of metabolite extraction from cob. This study assesses the reproducibility of metabolite extraction from the cobs of fungal pathogen -resistant and -susceptible cultivars. Hand grinding, mechanical...
African Journal of Plant Science
Grain yield and stability of selected early and medium duration cowpea in Ghana
March 2021
Changes in climate are a major driver for climate-smart crops with short duration on-field and adaptation to diverse growing conditions. This study evaluated the performance of nine early duration and 10 medium duration cowpea genotypes at six locations within the Guinea and Sudan savanna zones of Ghana. Genotypes for each maturity group were laid out in a Randomized Complete Block Design with three replications for...
Journal of Environmental Chemistry and Ecotoxicology
Physicochemical and bacteriological analysis of the quality of sachet water and their source point (spring box) consumed in Bo city, Sierra Leone
January-June 2021
This study was conducted to assess the physical, chemical, and bacteriological parameters of five- brand of sachet water, and their source point consumed in Bo city, southern Sierra Leone. The physical parameters include: pH, temperature, turbidity, total dissolved solid, and conductivity; chemical parameters include: Residual Chlorine, Magnesium, Potassium, Nitrite, Ammonia; and bacteriological parameters include:...
African Journal of Medical and Health Sciences
Primary and secondary resistance to first-line anti-tuberculosis medications at the Institute Pasteur Bangui, Central African Republic
March 2021
The emergence and spread of anti-tuberculosis-resistant strains of Mycobacterium tuberculosis presently represents a real challenge to the WHO's End TB by 2035 strategy. Through this study, we wanted to determine the current prevalence of primary and secondary resistance to first-line anti-tuberculosis drugs at the Pasteur Institute in Bangui. Cultures and sensitivity tests were carried out for 6 months (July -...
Journal of Veterinary Medicine and Animal Health
Taenia saginata taeniosis/cysticercosis risk factors: Applying Pareto principles to model more efficient control and prevention strategies in Botswana
January-March 2021
Most available data on Taenia saginata taeniosis/cysticercosis risk factors in Botswana neither associate risk factors with Batswana’s lifestyle nor rank risk factors’ contribution to observed prevalence. This disconnect undermines usability of data for bovine cysticercosis control. This study identified bovine cysticercosis risk factors and quantitatively ranked risk factors’ contributions to observed...
Educational Research and Reviews
The level of understanding scientific and engineering practices in light of the next generation science standards among preservice student teachers
March 2021
The purpose of the study is to investigate the level of understanding of first three grade preservice teachers of the scientific and engineering practices according to next generation science standards (NGSS) at the World Islamic Sciences University. The sample of the study consisted of 154 fourth year female student teachers at International Islamic Sciences University in the academic year 2019/2020. The study...
African Journal of Agricultural Research
Effect of seed priming on seedling emergence and growth of bitter kola (Garcinia kola) in Owerri, Nigeria
March, 2021
The potted experiment was conducted in the early planting season of 2018, at the Teaching and Research Farm of Imo State University, Owerri, Nigeria to ascertain the effects of seed priming using water, coconut water and moringa leaf extract on the seedling emergence and growth of bitter kola. Completely Randomized Design was used with four treatments and three replicates. The treatments were thus; soaking of bitter...
International Journal of Sociology and Anthropology
Challenges to vital registration in Nigeria
January-March 2021
The objective of this study was to investigate and reveal the socio-demographic factors affecting civil registration in Nigeria. The study employed the cross-sectional survey design. Instruments were administered to 600 participants sampled through a systematic random technique. SPSS (version 22) was used to analyze the data. Local importance attached to civil registration was different towards birth, death and marriage...
African Journal of Agricultural Research
Growth performance, carcass characteristics and cost benefit of feeding broilers with diets containing high quality cassava peel (HQCP)
March, 2021
A feeding trial was conducted to evaluate the effect of isonitrogenous and isocaloric diets containing varying levels of high-quality cassava peel (HQCP) fine mash on broilers’ performance, carcass characteristics, and cost benefit. A feeding trial was carried out using four hundred (400) 21-day old Arbor Acres broiler chicks weighing 570 – 630 g (live weight). The chicks were randomly allocated to five...
African Journal of Food Science
Quality and sensory properties of instant fried noodles made with soybean and carrot pomace flour
March 2021
Wheat flour commonly used in making noodles is rich in starch but poor in protein and fiber. Wheat flour substituted with soybean and carrot pomace flours were used to produce instant fried noodles. Soybean is high in protein while carrot pomace is rich in dietary fiber. The aim of this study was to evaluate the effect of substituting wheat flour with soybean and carrot pomace flour on the physicochemical, cooking and...
African Journal of Microbiology Research
Degradation of lignocellulosic content of rice straw using aerobic cellulolytic bacteria isolated from forest soil of Bangladesh
March 2021
The present research work was conducted to enumerate and isolate aerobic cellulolytic bacteria from forest soil using carboxymethyl cellulose (CMC) as substrate. The identified isolate was further tested as potent candidate to improve the nutritional value of rice straw. The forest soil was loaded with substantial amount (2.45×107) of cellulolytic bacteria. A total of 10 cellulose degrading bacteria (CDB) were...
African Journal of Food Science
Inactivation of microbes by ozone in the food industry: A review
March 2021
Ozone is active against a broad spectrum of microorganisms. Ozone treatment can enhance safety and increase shelf life with limited impact on product quality. Ozone is known to be one of the strongest oxidizers that can have applications in foods. In the gaseous state, ozone is denser than air, colorless at lower concentrations and possesses a distinct odor. Ozone can be generated using a few methods, by photochemical...
African Journal of Microbiology Research
Antimicrobial activities of microbially-synthesized silver nanoparticles against selected clinical pathogens in Akure, Nigeria
March 2021
Silver nanoparticles (AgNPs) have stimulated interest of scientists due to their wide range of applications, including their potential antimicrobial activity. This study investigated the antimicrobial activities of AgNPs synthesized by rhizospheric soil and fish pond sediment microorganisms against selected clinical pathogens. The samples were cultured and organisms identified in accordance with standard procedures. The...
African Journal of Environmental Science and Technology
Speciation of trace metal elements in sediments of Alibori River, North-West of Benin
March 2021
Alibori River located in northwestern Benin is subject to contamination by trace metal elements (TME: Zn, Cu, Pb, Cd) due to the use of agricultural inputs in its vicinity. This study focuses on the speciation of TME elements in the sediments of this river. The sediments were sampled during the rainy and dry seasons, dried, crushed and then sieved. The sediments were then mineralized and subjected to sequential...
African Journal of Agricultural Research
Effects of soil amendments and weeding regimes on growth and yield potential of rice (Oryza sativa L.) under different water sources in the Guinea Savanna
March, 2021
Enhancing soil fertility and reducing the devastative effect of weed competition in rice is increasingly important and critical for ensuring a sustainable increase in rice production and secure food supply. Field experiment was conducted at Bontanga in the Northern Region of Ghana to investigate the effect of soil amendments and weeding regimes on growth and yield of rice under different moisture sources. The experiment...
Educational Research and Reviews
Examination of prospective psychological counselors' therapeutic alliance skills with their attachment styles and self-regulation skills
March 2021
This study aimed to examine the relationship between the therapeutic alliance developed by prospective psychological counselors with clients in their psychological counseling practices and their attachment styles and self-regulation skills. The study used a correlational survey model and was carried out on 460 prospective psychological counselors. Data were collected using the Psychological Counseling Form of the...
African Journal of Pure and Applied Chemistry
Analysis of stability of naturally aged single base propellants
January-March 2021
In this work chemical changes in 42 years old single base propellant induced by natural aging were evaluated. The sample was stored for a long time under uncontrolled conditions. The chemical stability was tested using High performance liquid chromatography (HPLC), High-performance thin-layer chromatography (HPTLC), the vacuum stability test (VST), SEM/EDX and visual analysis by Stereo Microscope. Heat flow calorimetry...
African Journal of Marketing Management
The role of brand experience in customer satisfaction and customer loyalty in Ayandeh Bank branches in Tehran
January-June 2021
Many marketing executives are looking for a comprehensive plan for delivering quality services and products that will create a distinct and unforgettable long-term experience for customers when dealing with their brand. Various brand management experts believe that a company looking to enhance its brand experience in the minds of customers should have a plan to increase customer satisfaction as well as customer loyalty....
Journal of Pharmacognosy and Phytotherapy
Ethnomedicinal uses, phytochemical characterization, and antibacterial activity of Grewia tenax and Albizia anthelmintica extracts against multidrug-resistant pneumonia-causing bacteria
January-March 2021
The use of Grewia tenax and Albizia anthelmintica in treating different ailments is attracting significant attention as a primary health care option in Namibia. This study aims to document their ethnobotanical uses, phytochemical composition, antioxidant, and antibacterial activity against multidrug-resistant Streptococcus pneumonia, Klebsiella pneumonia, and Staphylococcus aureus. The ethnobotanical uses of G. tenax...
Journal of Bioinformatics and Sequence Analysis
Genomic profiles of Pseudomonas aeruginosa gene clusters based on profile HMMs, reveal novel therapeutic targets for clinical intervention
January-June 2021
Pseudomonas aeruginosa has developed antibiotic resistance, a major health concern worldwide, through different mechanisms including the formation of biofilms. Thus far, typing has been primarily assay based. However, the many sequences available from the US National Center for Biotechnology Information (NCBI) and the International Consortium of Pseudomonas Database (IPCD) offer alternative ways of characterizing the...
African Journal of Environmental Science and Technology
Characterization of cyanobacteria microcystins (cyanotoxins) blooming in the Dams of
Northern Morocco
March 2021
Cyanobacteria thrive in eutrophic freshwaters and impose a serious problem for the management of water bodies. Some Cyanobacteria species impose even a risk for public health due to the production of intracellular toxins. This study is a qualitative approach to determine the degree of toxicity and the toxicological aspect of cyanotoxins in order to setup a monitoring program for cyanobacteria blooms and the management...
African Journal of Microbiology Research
Evaluation of factors fuelling global antimicrobial resistance and its economic and clinical burden
March 2021
The aim of the research is to assess the factors fuelling Antimicrobial Resistance (AMR) and its economic and clinical burden. For this purpose, a systematic review was conducted, which included an analysis of factors and economic and clinical burden of AMR. It was found that poorly treated sewage; discharges from antibiotic manufacturing plants, empirical prescribing, lack of antimicrobial stewardship, poor AMR...
Journal of Public Health and Epidemiology
Alcohol use and compliance with road safety rules among commercial motorcyclists in Southwest Nigeria
January-March 2021
Alcohol has been identified as one of the major causes of traffic accident as those driving under the influence of alcohol barely comply with road safety rules and regulations. This study investigated the influence of alcohol use on compliance with road safety rules among commercial motorcyclists in Southwest Nigeria. Cross sectional descriptive research of the survey type was used to conduct the study. The sample size...
African Journal of Agricultural Research
Metribuzin and 2,4-D as potential herbicides for weed management in sorghum [Sorghum bicolor (L) Moench]
March, 2021
Grain sorghum demand for industrial and domestic uses has triggered increased production of sorghum. Field experiment was conducted at Egerton University Njoro, Kenya to determine the most effective herbicide(s) for weed management in sorghum. The experiment was carried out in a randomized complete block design (RCBD) with nine treatments replicated three times. The treatments consisted of four pre-emergence herbicides...
African Journal of Agricultural Research
Feed intake, digestibility and growth performance of Begait sheep kept under different feeding options
March, 2021
Thirty intact growing lambs were used to evaluate feed intake, digestibility and growth performance of Begait sheep breed kept under different feeding options. Animals were used in randomized completely block design with three dietary treatments in ten replicates. Treatments were grass hay fed ad libitum to all treatments plus a mixed diet of 48% wheat bran, 15% molasses, 35% cotton seed cake, 1% salt and 1% limestone...
International Journal of Livestock Production
Effect of breed, age and period of production on bovine semen quality used for artificial insemination
January-March 2021
Various factors are believed to influence quality of semen in breeding bulls. The main objective of this study was to evaluate how breed, age and time of semen production are relevant in the production of good quality semen used for Artificial Insemination. A total of 16,827 ejaculates from 187 bulls (Holstein Frisian = 114, Jersey = 35, Borena = 12, 50%HF × 50%Borena = 5, 75%HF × 25%Borena = 15 and Fogera =...
Journal of Medicinal Plants Research
Chemical and organic fertilizer: The effect on apiin production by Petroselinum crispum var. neapolitanum Danert
March, 2021
Parsley (Petroselinum crispum var. neapolitanum Danert) is a vegetable species with potential for pharmaceutical use because it contains apiin, a flavonoid that stands out for having biological activities, such as antioxidant. The aim of this study is to evaluate the influence of chemical or organic fertilizers on the nitrogen metabolism and production of flavonoids in parsley at different stages of development, aiming...
African Journal of Agricultural Research
Agronomic feasibility of using basalt powder as soil nutrient remineralizer
March, 2021
Tropical agriculture is highly dependent of soluble fertilizers, what raises the cost of production. An alternative to reduce the costs inputs is the use of low-cost alternative nutrient sources, such as the basic rocks. The aim of the work was to evaluate the effect of basalt powder on the soil chemical properties and plant growth. The experiment was arranged in a 2×2×2×3+4 factorial scheme: two soils...
Journal of Public Health and Epidemiology
Knowledge and risk factors for Lassa fever amongst students of Federal Polytechnic Auchi, Edo State, Nigeria
January-March 2021
Lassa fever (LF) is an acute, viral hemorrhagic illness which is common in West Africa. Students of tertiary institutions are also exposed to risk factors. Hence, the study aimed to assess the knowledge and risk factors for Lassa fever amongst students of the Federal Polytechnic Auchi, Edo State, Nigeria. This descriptive cross-sectional study was conducted among 240 undergraduate students of the Federal Polytechnic,...
African Journal of Agricultural Research
Effects of agrochemical application on the diversity and abundance of soil macro-fauna in cocoa-based (Theobroma cacao) agroforestry systems in Cameroon
March, 2021
Cocoa farmers’ excessive use of agrochemicals in cocoa agroforests has major repercussions on soil organisms, which play a great role in soil fertility enhancement. This study was carried out to examine the relationship between agrochemical use and soil macro-fauna diversity and abundance in cocoa agroforests in Cameroon. A mixed research approach was used, and data were analyzed using descriptive and inferential...
International Journal of Water Resources and Environmental Engineering
Water quality assessment of Ntawogba Stream in Port Harcourt metropolis, Rivers State, Nigeria
January-March, 2021
Ntawogba stream is one of the natural water bodies that drain the marshy swamp forest water from Port Harcourt municipality into Amadi Creek which empties into the Bonny estuary. Water quality assessment was carried out for three consecutive months (July - September) across three sampling points (upstream, midstream, and downstream). The physical parameters pH, temperature, EC, and turbidity were measured in-situ. The...
African Journal of Biotechnology
Adsorption of copper (II) ions onto raw Globimetula oreophila (Afomo ori koko) leaves
March 2021
This study examined the adsorption of copper onto raw Globimetula oreophila leaves. The adsorbent surface nature was examined using scanning electron microscopy and Fourier transform infrared spectroscopy. Adsorption parameters such as the –log10[H+], point of zero charge, initial metal concentration, mass of biomass and contact time were determined. Copper adsorption decreased gradually with pH. The point of zero...
African Journal of Agricultural Research
Effect of climate variation on the yield of cowpea (Vigna unguiculata)
March, 2021
This research was conducted to study the effects of climate variables such as rainfall, temperature, and relative humidity on cowpea yield, and evaluated in Gombe State, Nigeria, during the period of 2009 to 2018 (one decade). The ex-post facto research design was adopted for the study, utilizing secondary data obtained from meteorological and agronomic data collected from the Metrological Office and agronomic data from...
African Journal of Agricultural Research
Evaluation of soils fertility, growth, nutrient uptake and yield traits of peanut under indigenous and effective microorganism fertilizers in sandy ferralitic soils in Douala, Cameroon
March, 2021
Soil fertility, growth, nutrient uptake and yield traits of peanut (Arachis hypogaea L. var. JL24) were investigated under two organic fertilizers (indigenous microorganisms (IMO) or effective microorganisms (EM) with three replications. Application of IMO or EM fertilizers had significant effects on soils fertility compared to untreated soils. Total nitrogen, organic carbon, total phosphorus, calcium and magnesium led...
African Journal of Food Science
Handling practices and microbiological quality of kayabo - salted sun-dried nileperch Lates niloticus from Lake Victoria, Tanzania
March 2021
This study assessed handling practices and microbiological contamination of salted sun-dried Nile Perch, Lates niloticus, commonly known as Kayabo in Tanzania. The processors of Kayabo were small-scale processors located at Kanyama and Mwaloni, Mwanza. Mixed methods (observations, face-to-face interviews, and microbiological sampling) were used to assess handling practices of processors and...
Journal of Development and Agricultural Economics
Taenia saginata cysticercus: Its socioeconomic and psychosocial effects on cattle farmers in Botswana
January-March 2021
Despite claims that Taenia saginata taeniosis/cysticercosis cause adverse financial and socioeconomic effects on cattle farmers, there is no recent empirical evidence to justify this assertion in Botswana. This paper provides empirical analysis of bovine taeniosis and cysticercosis effects on farmers’ wellbeing in Botswana. Interviews and observations using non-participatory structured questionnaire were used to...
African Journal of Agricultural Research
Exploring on-farm additive common bean yield potential to organic and mineral fertilizers on contrasting soils of Buganda Catena, Central Uganda
March, 2021
Mineral and organic fertilizers have great potential to enhance crop yields in low fertility soils of the Buganda catena. However, the need for site-specific knowledge on use and yield of the two fertilizer types in a complex soil scape is acute among smallholder farmers exploiting any soil differences. This study evaluated on-farm grain yield response of common bean (Phaseolus vulgaris L.) to organic and mineral N and...
Journal of Mechanical Engineering Research
Physics of deactivation of gyroscopic inertial forces
January-June 2021
This new study on effects of gyroscope demonstrates the action on the spinning disc that the eight interrelated inertial torques system generated by its rotating masses. The physics behind this inertial torques manifest the action of the resistance and precession torques, which physics are described and explained. The latest research on the gyroscopic properties revealed the deactivation of the inertial torques that...
African Journal of Agricultural Research
Variation in beta carotene and yield in sweetpotato (Ipomoea batatas (L.) Lam.) associated with ambient temperature and genotype
March, 2021
This study was conducted to determine the relationship between ambient temperature during growing season on tuber β-carotene content and yield of four orange-fleshed sweetpotato varieties; Orange Chingovwa, Olympia, Kokota and Zambezi. A split plot experiment design with the environment (main plot) and variety (subplots). The environments were: High-temperature site (HTS) (average temperature of 38.5°C) and...
African Journal of Food Science
Increasing gallic acid contents in green tea extracts using acid hydrolysis
March 2021
Gallic acid (GA) is a functional ingredient abundant in Chinese pu-erh tea. The aim of this study was to increase the GA content in green tea extracts using acid hydrolysis. (-)-Epigallocatechin gallate treated with 1 M hydrochloric acid at 110°C for 1 h resulted in a GA yield of 45.6%. However, under these conditions, (-)-epigallocatechin was easily oxidized and rendered undetectable. On applying the same treatment...
African Journal of Business Management
Economy of the motorway concessions model in Italy
March 2021
The article analyzes the management of the motorway system in Italy. It underlines the positive and critical aspects of the concession system, through the analysis of the financial statements of the main concessionary companies. From the analysis of the economic and non-financial performance, it is concluded that the current model is preferable to a totally public model, which would require significant investments. The...
International Journal of Sociology and Anthropology
Analysis of adolescents’ social competence: A Ghanaian perspective
January-March 2021
The study examined social competence of adolescents and ascertained variations in the group based on gender, type of parents they lived with, and community of residence. The comparative analysis study utilised adolescents in their formative years of development. Descriptive survey design was utilised and questionnaire was the sole data collection tool. The study revealed that most of the adolescents demonstrated...
African Journal of Microbiology Research
Evaluation of yellow fever surveillance in Chad, 2015-2020
March 2021
The present study was conducted to determine the seroprevalence of yellow fever virus in patients with clinical signs of febrile jaundice giving suspicion of yellow fever and to evaluate diagnostic techniques for surveillance of yellow fever in the Republic from Chad. From January 2015 to July 2020, an observational study of virological markers was conducted in jaundice patients in Chad. Of the 1730 patients included in...
Journal of Medical Laboratory and Diagnosis
Health risk associated with eating fish from brackish water
January-June 2021
Heart disease is a leading cause of morbidity and mortality in the United States with diet being a major contributor. As solution, fish rich in omega-3 fatty acids is recommended. In this study, the impact of brackish water on fish quality, was done by sampling canal water in Edinburg, Texas. Canal water was membrane filtered and cultured on bacteriological media. Pure cultures were phenotypically identified, and...
Page 2 of 1212, showing 50 records out of 60567 total, starting on record 51, ending on 100
