Articles
Page 12 of 1275, showing 50 records out of 63725 total, starting on record 551, ending on 600
January 2024
African Journal of Biotechnology
Purification of stilbene synthase from Phaseolus vulgaris and determination of its catalytic activity
Stilbene compounds, secondary metabolites produced by plants in response to external environmental stimuli, are garnering increasing attention. Stilbene synthase (STS) plays a crucial role in their synthesis. This study focuses on the purification of stilbene synthase from Phaseolus vulgaris and the determination of its catalytic activity. The stilbene synthase gene obtained from the Phaseolus genome was expressed in...
January 2024
African Journal of Biotechnology
Estimates of genetic variability in ultraviolet irradiated populations of summer squash
Summer squash is an important member of the family Cucurbitaceae. It is one of the most popular vegetable crops cultivated in Egypt. Increasing yield and improving fruits quality are the targets for growers. Therefore, this study aimed to evaluate the extent of genetic variations, heritability, as well as expected genetic advance for growth and yield related traits in four genotypes of summer squash subjected to three...
December 2023
International Journal of Nutrition and Metabolism
Dietary intake of omega-6 and omega-3 fatty acids among pregnant and breastfeeding women in Morogoro, Tanzania
A new-born’s health and wellbeing is determined by the diet and lifestyle of the mother prior, during and after conception. Polyunsaturated fatty acids play an important role for proper development of brain and other organs in the body. This study sought to assess dietary intake of omega 6 and omega 3 fatty acids among pregnant and breastfeeding women in Morogoro municipality, Tanzania. About 318 women completed a...
December 2023
International Journal of Nutrition and Metabolism
Effect of junk food on body mass index (BMI) of adolescent school children in Ukwuani Local Government Area (LGA) of Delta State
There are great concerns in Nigeria about lifestyle diseases which are now emerging among adolescent school children due to emphasis on the food taste rather than nutritional value of the food. Survey of the consumption pattern of junk foods among adolescent school children drawn from both public and private school in Ukwuani LGA of Delta State, Nigeria was carried out. The study sample is class three (3) of the Junior...
December 2023
Journal of Brewing and Distilling
Assessment of the composition of gins by nuclear magnetic resonance spectroscopy
A limited number of samples of gin and related alcoholic beverages have been analysed using high-resolution 1H NMR Spectroscopy to investigate the effectiveness of the technique as a means of gaining insight into their chemical composition. Various types of gin were investigated, including London Dry, Compound, Old Tom, and fruit gins. The study utilized some advanced NMR experiments, including multiple solvent...
December 2023
African Journal of Food Science
Insights into the journey towards development of dietary guidelines: An exploration of synergy between fruit and vegetable research with food composition tables in Malawi
Publication of the Malawi Food Composition Database (MFCDB) is a milestone towards improving the nutritional status and overall health of citizens. Following the establishment of this database, the next step involves formulating food-based dietary guidelines tailored for Malawi. However, both the database and the planned dietary guidelines are dependent on robust research on food composition. This analytical review...
December 2023
African Journal of Food Science
Effect of 300Gy Gamma (Y) radiation dose on Nigerian onion: A proximate composition
Onion (Allium cepa) samples purchased from one of the most populous markets (Bodija market) in the south-western part of Nigeria were irradiated with a 300Gy dose of Yphotons using YBEAMX200, while some of these onions were also kept as control (non-irradiated). Proximate analyses were carried out on both irradiated and non-irradiated onion. The proximate composition revealed 0.16, 11.63 and 7.90% reduction in moisture,...
December 2023
Journal of Media and Communication Studies
Assessment of communication interventions to improve the livelihood of rural community in Ethiopia: The case of Sidama Region
This study aims to assess practical communication interventions used by development agents in the agricultural sector in the Sidama Region. Using the descriptive design, the researchers employed a quantitative data-gathering method. A cluster random sampling technique was used to identify two 'districts' from the region. All development agents found in the two woredas were selected and included in the survey. A...
December 2023
African Journal of Agricultural Research
Effects of irrigation regimes at different growth stages on seed yield and yield components of two soybeans (Glycine max L. (Merr.)) varieties in semi-arid conditions
Water stress is the most limiting abiotic stress factor for soybean growth, development and production in semi-arid regions. The development of new soybean cultivars with high efficiency and ability to drought resistance is very important. Field experiment was conducted to investigated the impact of irrigation regimes at different growth stages (Full irrigation, irrigation regimes at vegetable growth, flowering, and pod...
December 2023
African Journal of Agricultural Research
Effect of biochar on soil physical properties, growth parameters and yield of soybeans on a five-year fallow
The potential of biochar as a soil amendment in agricultural fields is a recently recognized and yet underutilized technology. The objective of this study was to investigate the mid/long-term effects of a single biochar application on soil physical properties, growth parameters and the yield of soybeans in a sandy clay loam. Biochar was added to a highly weathered tropical soil at rates of 40 tons ha-1 five years prior...
December 2023
African Journal of Agricultural Research
Agronomic efficiency and grain yield response index of wheat varieties as influenced by nitrogen rates in
semi-arid zone of southern Niger
Wheat productivity in southern Niger is hampered by the utilization of local wheat varieties that exhibit a low response to fertilizer. A field experiment was conducted over two dry seasons in Djirataoua to investigate the efficiency and responsiveness of four wheat varieties under four nitrogen doses (0, 100, 150 and 200 kg N ha-1). The experiment followed a split-plot design with three replications. Results revealed...
December 2023
African Journal of Agricultural Research
Screening sorghum local landraces for potential drought tolerance stay-green quantitative trait loci (QTLs) sources in Burkina Faso
Sorghum serves as a staple food for rural populations in Burkina Faso, but its cultivation faces limitations due to post-flowering drought stress. Consequently, there is a need for improvement to enhance resilience to moisture stress. The current investigation aims to identify drought-tolerant germplasm to enhance local susceptible elite varieties. One hundred and ten accessions, comprising improved and exotic...
December 2023
African Journal of Agricultural Research
Growth promotion and yield attribute improvement of five groundnut (Arachis hypogaea L.) varieties by the application of plant growth promoting rhizobacteria
The aim of this investigation was to evaluate the symbiotic performance of a collection of ten plant growth-promoting rhizobacteria (PGPR) strains on the growth and yield attributes of five groundnut varieties. The screening was conducted in the greenhouse using seeds of the varieties Essamay, Amoul Morom, 55-437, Fleur 11 and Sunu Gaal grown in 1.5 kg pots with Sangalkam soils. Leaf chlorophyll content, plant height,...
December 2023
African Journal of Microbiology Research
The assessment of contamination level of multidrug resistant bacteria and antibiotic residue in chicken manure
This study aimed to assess the contamination level of chicken litter by antibiotic residues and multidrug resistant (MDR) bacteria. A total of 28 chicken litter samples were aseptically collected in Abidjan poultry farms in December 2021. The bacteria including Salmonella, Escherichia coli and Staphyloccocus aureus were isolated on specific culture media and were identified using biochemical tests. Antibiotics...
December 2023
African Journal of Microbiology Research
Molecular identification of biofilm-producing Bacillus species and yeasts isolated from food sources and their interaction with Lysinibacillus louembei strain
The microorganisms contained in fermented foods are known to harbor metabolic products, possibly improving human and animal health. However, despite several studies on the functional effects of fermented foods, isolation and identification of the effective Bacillus species strains are still in progress. The objective of this study was to molecularly identify biofilm-producing Bacillus spp. (BPB) and yeasts from...
December 2023
African Journal of Microbiology Research
Prevalence, antibiotic resistance of Staphylococcus aureus isolated from layer farms (eggs, droppings/litter) in the outskirts of the city of Ouagadougou, Burkina Faso
Eggs are susceptible to microbiological contamination by various pathogens on farms, particularly those belonging to the genus Staphylococcus, which are zoonotic bacteria capable of contaminating humans, animals, and/or birds, posing a significant public health concern. In Burkina Faso, limited data exists on the prevalence of Staphylococcus aureus, prompting this study to investigate the prevalence and antibiotic...
December 2023
African Journal of Microbiology Research
Acute bacterial meningitis ecosystem in Cote D'ivoire from 2012 to 2020
Bacterial meningitis remains a health concern in meningitis belt countries. The objective of this study was to ascertain the bacterial profiles of meningitis in Côte d'Ivoire from 2012 to 2020. The study, conducted retrospectively at the National Center of Reference of Meningitis of Cote d’ivoire, analyzed 5046 cerebrospinal fluid (CSF) samples from January 2012 to December 2020. Epidemiological data...
December 2023
Journal of Medicinal Plants Research
Antimicrobial activities of the extract of shea tree (Vitellaria paradoxa Gaertn. F.) leaf and bark on some selected clinical pathogens
The use of plants and plant products in the treatment of various ailments has been with humanity since the dawn of time and the potentials of these plants are so enormous that the continuous search for their hidden treasures is more crucial because of the rise in antibiotic resistance. This study was designed to determine the antimicrobial activities of the shea tree (Vitellaria paradoxa) extracts against some selected...
December 2023
Journal of Medicinal Plants Research
Phytochemical compounds present in COVI-MXG herbal preparation inhibits RNA-Dependent RNA polymerase from SARS-CoV-2: A molecular docking study
Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2) has been identified as the agent responsible for COVID-19 pandemic. Currently, no therapeutic agents have proven effective in combating the virus. Managing the infection is mainly palliative in nature, involving infection prevention strategies and supportive therapy anchored on drugs that practitioners have had previous usage experience. Previously exploited...
December 2023
Journal of Medicinal Plants Research
Effects of different nitrogen forms and concentration combinations on American ginseng seedling growth
This study investigated the impact of various nitrogen forms on American ginseng (Panax quinquefolius) seedling growth. Thirteen treatments of inorganic and organic nitrogen combinations were tested in the first year and growth indicators were measured. In the second year, treatments with significant growth promotion effects were further verified. The results showed improved growth of American ginseng seedlings when the...
December 2023
Journal of Medicinal Plants Research
Qualitative, quantitative composition and evaluation of the antioxidant activity of polar extracts of stem bark of Hexalobus crispiflorus A. Rich (Annonaceae family): Central African species
Hexalobus crispiflorus A. Rich., synonym Hexalobus grandiflorus Benth, is a plant in the Central African pharmacopoeia, widely used in the treatment of skin diseases and diabetes. The present study is a contribution to the qualitative and quantitative analysis and evaluation of the antioxidant activity of this plant. Preliminary phytochemical tests carried out on the different crude extracts of H. crispiflorus revealed...
December 2023
Journal of the Nigeria Society of Physiotherapy
Cardiopulmonary physiotherapy as a specialty: Students’ experience and factors that influence their career choice
Studies have shown that physiotherapy students have limited knowledge about cardiopulmonary physiotherapy specialty despite the increased need for cardiopulmonary physiotherapy services in Nigeria. The study aims to assess undergraduate physiotherapy clinical students' experiences in the cardiopulmonary physiotherapy specialty and the factors that influence their career choice. A cross-sectional survey was conducted...
December 2023
African Journal of Environmental Science and Technology
Groundwater quality assessment and human health risks in Ovitoto, Otjozondjupa Region, Namibia
Namibia, a dry country relies heavily on groundwater resources which is susceptible to anthropogenic contamination. The study assessed the quality and health risks of borehole water supplied to residents of the Ovitoto community in Otjozondjupa region of Namibia. Water samples were collected from nine boreholes across nine communities over a period of six months and subjected to physicochemical and microbial analyses....
December 2023
African Journal of Environmental Science and Technology
Possible human health risk of selected heavy metals’ mobility from municipal waste compost amended agricultural soil
Use of organic compost in soil amendment in agricultural practice may tend to transfer heavy metals and can be a health concern. This study aims to investigate the possible mobilization of selected heavy metals from municipal compost amended soil. Experimental plots (250 m2) were divided into four equal portions and alternate portions were amended with municipal compost and left for 5 weeks. Soil physicochemical...
December 2023
African Journal of Environmental Science and Technology
Geospatial assessment of land surface temperature in Owo Forest Reserve Area, Ondo State Nigeria
Nigeria forest reserves acts as the last succour for the entire citizenry and also have significant contributions to her economy. This study was intended at assessing the Land Surface Temperature (LST) in Owo Forest Reserve Area (FRA) with a view for sustainable forest management. The objectives set for the research includes: (i.) assessing the vegetation changes in Owo FRA, (ii.) evaluate the LST and (iii.) relate...
December 2023
Journal of Accounting and Taxation
Digital ethics and taxpayers’ attitude in Greece: Evidence and policy recommendations for the future
New technologies transform public policies and the services provided to citizens, contributing significant added value to them individually or collectively. The same applies to the case of Artificial Intelligence (AI) in Tax Administration (TA). Contemporary TA integrates in its operation a number of algorithmic applications in high impact areas of taxation. This paper aims to analyze Greek taxpayers’ attitudes...
December 2023
African Journal of Plant Science
Combining ability of aphids (Aphis craccivora Koch) resistance in cowpea (Vigna unguiculata (L.) Walp.)
General combining ability (GCA) describes the general usefulness of the parental form in terms of the concerned trait, whereas specific combining ability (SCA) indicates importance of the joint action of the genes of parental forms. Such information is useful to identify the best combiners which may be hybridized to build up favourable genes. This present investigation aimed to determine the GCA and SCA effects of...
December 2023
African Journal of Biotechnology
Callus induction of Tacca integrifolia Ker Gawl using stem nodal segment
A study was conducted to determine the optimum concentration of plant growth regulators on in vitro callus induction of Tacca integrifolia using stem nodal segment. Fresh, dry weight and morphology of callus were evaluated and the results showed significant effects on callus induction when analyzed at a 5% level of significance. Among the treatments, Murashige and Skoog with only 6-Benzylaminopurine (1.0 mg/L) produced...
December 2023
African Journal of Biotechnology
Isolation and molecular identification of tannase producing fungi from soil
The study was conducted to isolate and identify tannase producing fungi from soil. Soil samples were collected aseptically and cultured on tannic acid agar (TAA) to screen for tannic acid hydrolysis. The observed isolates were sub-cultured to obtain pure culture and were later subjected to secondary screening in the Czapek medium. The biomass weight, tannase activity, and gallic acid concentration in the fermentation...
December 2023
African Journal of Biotechnology
Identification of antagonistic bacterium strain and biocontrol effects on ginseng root rot disease
From healthy mountain-cultivated ginseng leaves, 45 endophytic bacteria strains were isolated. Antagonistic bacterium strain FS17 was screened with the confront culture method, and identified as Bacillus subtilis based on morphological characteristic and 16S rRNA sequence analysis. Growth rate method was used to determine that the fermentation broth of FS17 had inhibitory effect on 10 plant pathogenic fungi, and the...
December 2023
African Journal of Biotechnology
Inoculation effectiveness of native and exotic Bradyrhizobium species strains in a Senegalese agricultural soil: A comparison on modern and traditional peanut (Arachis hypogaea L.) cultivars
Peanut is a key component of Senegal’s predominantly cereal-based farming systems, but its production is challenged by low soil fertility. Rhizobial inoculation is a promising strategy to improve crop yield and reduce the use of chemical nitrogen fertilizers. The aim of this study was to isolate the most specific and effective bradyrhizobial strain for peanut, and to determine the degree of variability in the...
December 2023
African Journal of Biotechnology
Preferential expression of somatic embryogenesis in five elite genotypes of Theobroma cacao (L.) associated with explant type and protocols used
This study aims to identify the suitable subculturing time, culture media (protocols) and explants type suitable for somatic embryogenesis expression in five elite genotypes of Theobroma cacao L. Thus, petals and staminodes explants extracted from immature flower buds of genotypes (C1, C8, C9, C14, and C16) are first grown in different media (CIM and CDM) to assess the subculturing time. Then, successive transfers in...
December 2023
International Journal of Nursing and Midwifery
The impact of self-management education and exercise intervention on pregnant women’s back pain experiences in low- and middle-income countries
Pregnancy-related back pain is a frustrating health problem worldwide because of its high prevalence. Approximately 50% of women experience back pain during pregnancy and 25% may continue to experience pain after delivery. The impact of a self-management education and exercise intervention were determined on pregnant women’s back pain experiences in a low- and middle-income setting. The aim was to establish the...
December 2023
Educational Research and Reviews
The perception of junior secondary school teacher to their level of motivation in Bo District, Southern Region of Sierra Leone
The study assessed the perception of junior secondary school teacher to their level of motivation in Bo district, Southern Region of Sierra Leone. It adopted a descriptive research design to collect data on a sample size of 298 teachers. Self-administered perception questionnaire on teacher motivation (SAPQTM) was developed on the basis of the objectives of the study. Data was collected and analyzed using descriptive...
December 2023
Educational Research and Reviews
Meta-cognitive knowledge, locus of control and understanding mathematical jokes: A study in students with and without learning disabilities
This study examined how metacognitive knowledge and locus of control are associated with understanding mathematical jokes in students with and without learning disabilities. This study looked at a sample of 60 ninth-grade students of which 30 had a learning disability diagnosis and 30 had no learning disabilities. Students were tested using three instruments: a metacognitive knowledge questionnaire, a locus of control...
December 2023
Educational Research and Reviews
The effect of differentiated instruction on gifted students' critical thinking skills and mathematics problem solving attitudes
It is known that a significant portion of the world's child population is gifted. Studies on the applications that can be used in the education of these gifted students have been given importance in recent years. In this study, the effect of differentiated instruction method on mathematics problem solving attitude and critical thinking skills of gifted students at primary school level was examined. The research is a...
December 2023
Educational Research and Reviews
Examining e-learning adoption intention among academic staff in higher education institutions: A developing country context
E-learning presents a significant opportunity for developing countries to rapidly increase the availability of higher education to their population. However, e-learning is not widely adopted in many developing countries such as Nigeria. This study aims to advance our understanding of the determinants of e-learning adoption by examining the factors influencing e-learning adoption intentions among academic staff in higher...
December 2023
Educational Research and Reviews
The perception of junior secondary school teachers on their performance in Bo District, Southern Sierra Leone
The study investigated the effects of motivation on the performance of Junior Secondary School teachers in Bo district, Southern Sierra Leone. It adopted a descriptive research design to collect data on a sample size of 298 teachers. The descriptive statistics analysis revealed that the performance of teachers was high; this implies that teachers rated their performance as of a high standard. They indicated that most...
December 2023
Educational Research and Reviews
Teacher professional development in Zimbabwe: Bridging resources to serve young children
This bounded case study illuminates the planning, delivery, and evaluation of early childhood professional development sessions conducted by the educational experts with a Zimbabwean non-profit organization in response to a need for professional development for early childhood teachers. Ethnographic and grounded theory methods were used by participant observers to collect and analyze data, including observational notes...
December 2023
African Journal of Political Science and International Relations
Kenya's evolving recognition and non-recognition policy under moi: A case of China and Taiwan (1990-1998)
This study delves into the transformation of Kenya's foreign policy with regard to recognition and non-recognition, with a particular focus on its handling of China and Taiwan during the period spanning 1990 to 1998. Historically, Kenya's recognition policy adhered to the conventional norm of emphasizing the recognition of sovereign states over specific governments, as exemplified by Dr. Njoroge Mungai's...
December 2023
Scientific Research and Essays
Endogenous knowledge and farming methods for Jatropha curcas L. in southern Chad
To assess the level of knowledge of the farming population and the ecological importance of Jatropha curcas, ethnobotanical surveys were carried out among the local population in three villages in the province of Logone Oriental, namely Bébédjia, Miandoum and Komé. A total of 250 people of different sexes were surveyed. The results of these surveys showed the socio-economic importance of this...
December 2023
International Journal of Physical Sciences
Variability of the electric field of magnetospheric convection in recurrent activity during the solar cycle 24
This paper employs a statistical approach to investigate the diurnal variability of the magnetospheric convective electric field (MCEF) during recurrent activity, considering the phases of solar cycle 24. This study reveals that the magnetosphere exhibits greater dynamism during the maximum and descending phases on recurrent days. The diurnal variability of the MCEF on days of recurrent geomagnetic activity indicates...
December 2023
Journal of Public Health and Epidemiology
Prevalence, determinants, and consequences of teenage pregnancy on teenage girls in selected health areas of the Limbe Health District in Cameroon
Teenage pregnancy is a significant public health concern in many low- and middle-income countries, including Cameroon. It leads to adverse health outcomes for both the mother and child, as well as social, economic, and educational challenges. Little is known about teenage pregnancy in the Limbe Health District. This study aimed to address this gap by determining the prevalence of teenage pregnancy, identifying the...
December 2023
Journal of Public Health and Epidemiology
Factors associated with viral suppression and rebound in adult HIV patients on antiretroviral therapy
Suppression of viral load and its maintenance are necessary for reducing morbidity and mortality linked to HIV infection. The present study aims to investigate the factors associated with viral load rebound in adults receiving antiretroviral treatment. The study was conducted in two outpatient treatment centers (CTAs) in Bangui. This cross-sectional analytical study was conducted from August 1 to 31, 2023. The study...
December 2023
Journal of Public Health and Epidemiology
Prevalence of sexual dysfunction, factors, and psychological effects on adult males in the Buea Health District, Cameroon
The aim of this study was to determine the prevalence of sexual dysfunction, associated factors, quality of life and health seeking habit of males in the Buea Health District (BHD). A community-based cross-sectional study was carried out on sexually active males. Sexual dysfunction and quality of life were assessed using the International Index for Erectile Function (IIEF) and the Sexual Quality of Life Scale-Male...
December 2023
International Journal of Genetics and Molecular Biology
Genetic variability, heritability and genetic advance among yield and yield related traits of advanced Tef [Eragrostis tef (Zucc.) Trotter] breeding lines
In Ethiopia, tef is one of the most significant crops that are grown extensively as a staple cereal crop. The evaluation of genetic variability in crop species is one of the key activities in plant breeding, which supports in the creation of breeding strategies to meet a diversify objectives. A field experiment was therefore conducted to determine genetic variability, heritability, and genetic advanced for yield and...
December 2023
African Journal of History and Culture
Changes in the customary marriage traditions and their implication for the girl child: A gender perspective
In Ghana, customary marriage traditions have witnessed some level of changes. This study examined these changes and their implications for the girl child development, using the Gurishies of Bongo in the Upper East Region as a case. Purposive and quota sampling techniques were employed to select 41 participants in a case study design. Face to face interview was employed in gathering primary data and were analysed...
December 2023
African Journal of History and Culture
Equines on the Islands of Malta from the tenth to the twenty-first centuries AD
Donkeys probably first arrived on Malta 3000 years ago. The first written record appears in the late tenth century when wild donkeys were present on an unoccupied Malta and were captured by itinerant traders for export, mainly to Sicily. In 1091 Sicily invaded Malta and confiscated all the inhabitants’ horses and mules. Horse numbers declined from 600 animals in 1565 to 130 by 1638. Donkeys were always most...
December 2023
Journal of Parasitology and Vector Biology
Morphometric structuring and diversity of ticks of the subgenus Rhipicephalus (Boophilus), in the Savannah District, Côte d’Ivoire
The existence of a biological barrier between Rhipicephalus (Boophilus) microplus, Rhipicephalus (Boophilus) annulatus and Rhipicephalus (Boophilus) decoloratus, which are considered species within the subgenus Rhipicephalus (Boophilus), is increasingly questioned due to observed hypothetical hybridization among them. To investigate this presumed hybridization, we conducted a morphometric characterization study of the...
December 2023
International Journal of Educational Administration and Policy Studies
Investigating the challenges facing effective implementation of free primary education in Bo District, Southern Sierra Leone
This paper aims to examine the obstacles hindering the successful implementation of Free Primary teaching in Kakua chiefdom, Bo district, Southern Sierra Leone, focusing on the adequacy of funding and provision of educational resources to schools. The research employed a survey design with a cross-sectional approach, involving the collection of both qualitative and quantitative data from various respondents...
Page 12 of 1275, showing 50 records out of 63725 total, starting on record 551, ending on 600
