Articles
Page 4 of 1263, showing 50 records out of 63137 total, starting on record 151, ending on 200
September 2023
Educational Research and Reviews
Becoming a dreamcatcher: Pre-service EFL teachers’ experience of culturally relevant pedagogy as agents of flexibility
The dynamics of the 21st century human life calls for adaptability to diversity, change and the ability to remove borders. Teacher education, in the midst of changes in social life, also calls for raising questions about pedagogical practices that can serve as a tool to make a difference. In this study, culturally relevant pedagogy is demonstrated as a promising strategy in promoting a positive environment in EFL...
September 2023
African Journal of Biotechnology
Study of the effectiveness of essential oils of Mentha aquatica L. and Pimpinella anisum L. in the microbiological stabilization of pasteurized plant extract of Cyperus esculentus L. in Mali
This study evaluates the antimicrobial properties of essential oils of Mentha aquatica and Pimpinella anisum in the stabilization of pasteurized plant extract of Cyperus esculentus in Mali. The extraction of essential oils was carried out by steam distillation of the aerial organs of M. aquatica harvested in Bamako and the seeds of P. anisum harvested at Diré in Timbuktu Region. Aging tests were carried out by...
September 2023
African Journal of Biotechnology
Optimization of regeneration protocol and prospecting spectinomycin resistance in barley (Hordeum vulgare L.) cv Haider-93
Immature zygotic embryos from spring barley cv. Haider-93 were used to induce somatic embryogenesis. The type of the explant, the level of 2,4-dichlorophenoxyacetic acid (2,4-D) and handling of calli during subculture are critical factors to obtain maximum number of regenerants. Different concentrations of 2,4-D (0, 0.5, 1.0, 1.5, 2.0, 2.5, 3.0 mg/L) and Kinetin (0.5, 1.0, 1.5, 2.0 mg/L) were used for callus induction...
September 2023
African Journal of Food Science
Impacts of covid-19 measures on supply and distribution of milk on small-scale processors in Nakuru, Uasin Gishu, and Nyandarua Counties, Kenya
COVID-19 poses serious threats to humanity and the world’s economy, leading to disruptions of the food supply chain. The dairy processing industry was highly affected because of the perishability of its products and time-sensitivity of both the supply and distribution chain. The study therefore, aimed to assess the effects of COVID-19 containment measures on the supply and distribution of small-scale dairy...
September 2023
African Journal of Microbiology Research
Effect of methylprednisolone on the morphology of acute lymphoblastic leukemia cell line in vitro model by Atomic Force Microscopy
Despite the recent knowledge of the molecular mechanisms of corticosteroid drugs in lymphoid leukemia, information about the nanostructured surface morphology of the process of cell death is limited. Therefore, the main objective of this work is to analyze the effect of methylprednisolone on the morphology of B lymphoblast CCRF-SB cell line by Atomic Force Microscopy (AFM). Morphological parameters such as height, cell...
September 2023
African Journal of Food Science
Compliance with food safety standards by beef vendors at butcheries in Kamuli district, Uganda
Butcheries are the leading retailers of beef in Uganda and their level of compliance with food safety standards is unknown. The aim of this study was to determine the compliance by beef vendors in Kamuli district with the US 736:2019 standard for hygienic requirements for butcheries. A survey questionnaire and observation checklist on sanitation, hygiene, and beef handling were used to collect data from 60 butcheries....
September 2023
African Journal of Food Science
Evaluation of thermosonication in the inactivation of lipoxygenase in hydrosoluble soy extract
Hydrosoluble soy extract (HSE) is nutritious and highly perishable, requiring it to be submitted to an adequate conservation method. Ultrasound combined with heat (thermosonication) can be an alternative capable of reducing the undesirable effects caused by the conventional thermal treatment in this product. The objective of this work was to evaluate the effect of thermosonication on the inactivation of the enzyme...
September 2023
African Journal of Agricultural Research
Response of common bean (Phaseolus vulgaris L.) to nutrient amendments across variable agro-climatic conditions in Ghana
Common bean (Phaseolus vulgaris L.) is an important crop with the potential to curb malnutrition in Sub-Saharan Africa (SSA). However, poor soil fertility is considered to be the major constraint for bean production in SSA. This study determines canopy spread, chlorophyll content, stomatal conductance, and seed yield of common beans in a field experiment conducted at Fumesua (rain-forest) and Akumadan...
September 2023
African Journal of Agricultural Research
Porter’s diamond model and Zimbabwe’s national competitiveness in the cut flower industry
Zimbabwe’s cut flower industry has declined over the past years. We determined the national competitiveness of Zimbabwe’s cut flower industry using Porter’s diamond model of competitive advantage in 2018 using a descriptive and exploratory design that made use of qualitative and quantitative research methods. Low numbers of key players in the industry forced researchers to administer questionnaires to...
September 2023
Journal of Philosophy and Culture
The Quest for Self-reflective Knowledge and Practice: Is an Epistemological Blindness Relative to Time and Situation?
This article serves as both an expository and critical reflection on the fifth chapter of Boaventura De Sousa Santos's book (2014), titled “Epistemologies of the South: Justice against Epistemicide”. The fifth chapter, entitled “Toward an Epistemology of Blindness: Why the New Forms of ‘Ceremonial Adequacy’ Neither Regulate nor Emancipate” (pages 136-163), is the focus of this...
September 2023
Journal of Medicinal Plants Research
Effect of Canarium schweinfurthii leaf and pulp extracts on blood glucose levels in oral glucose load - induced hyperglycemia in Wistar albino rats
Canarium schweinfurthii is a common medicinal plant used as food and medicine in communities of central Uganda. Local communities and herbalists commonly used it in the management of diabetes mellitus type 2 with limited information on its effectiveness. Study assessed the hypoglycemic effect of C. schweinfurthii aqueous and total crude leaf and pulp extracts on blood glucose levels in Wistar albino rats. An...
September 2023
African Journal of Biotechnology
Nutritional and physicochemical characteristics of natural fruit juice formulated from papaya (Carica papaya), pineapple (Ananas comosus) and beetroot (Beta vulgaris)
Maintaining optimal nutrition and healthy population continues to be a global priority. The group of liquids and beverages plays an important role in human nutrition. Most beverages consumed are artificial and contain an array of chemical molecules that can be harmful to the health of consumers. Papaya, pineapple and beetroot are the most popular fruits and legumes in Cameroon with several therapeutical effects. This...
September 2023
African Journal of Agricultural Research
Soil moisture content and maize grain yield under conventional and conservation agriculture practices - results of short term field tests in Liselo, Namibia
This article focuses on the results from trials developed to monitor the short-term effects of conventionally tilled systems versus CA on soil quality and crop productivity under conditions of the major cropping systems in central, north-central and north-eastern regions of Namibia. Conventional tillage (CT), Minimum tillage (MT), Minimum tillage, mulch (MT-M), Minimum tillage, rotation (MT-R) and Minimum tillage, mulch...
September 2023
African Journal of Environmental Science and Technology
Degradation of chlorantraniliprole by photocatalysis of supported titanium dioxide: Effect of operating parameters
The rinsing of sprayers after the phytosanitary treatment of agricultural plots generates waste water, which is discharged without prior treatment into aquatic environments. The aim of this study was to evaluate the efficiency of a supported photocatalytic process for the degradation of chlorantraniliprole in an aqueous medium. Clay balls were made in the laboratory from 40 mL of ultrapure water added to 100 g of clay...
September 2023
African Journal of Environmental Science and Technology
Water exploitation-induced climate change
Downstream countries can experience a range of direct, indirect, and feedback effects from upstream water piracy. These consequences can range from economic decline due to decreased availability of water for agriculture and fisheries, to the disruption of ecosystems from alterations to water flows and ecosystems, to the potential for political tensions that arise due to unequal access to water resources. The upstream...
September 2023
Journal of Stored Products and Postharvest Research
Investigating the periodic physical disturbance method in Ghana to control adult Sitophilus zeamais in maize storage
The maize weevil (Sitophilus zeamais) is an important cosmopolitan pest and the most detrimental insect of stored maize. This study aimed to investigate the efficacy of the periodic physical disturbance method on S. zeamais mortality. The potential adoption of the technology in Ghana was also considered. Farmers loaded 20 L buckets with maize grain and S. zeamais, non-hermetically. The physical disturbance was applied...
September 2023
African Journal of Biotechnology
Phytochemical composition, GC-MS analysis and toxicological profiling of Gouania longipetala leaf extract in rats
This study investigated the phytochemical composition and toxicity potentials of Gouania longipetala leaf extract in rats. Crude extract was prepared from freshly collected leaves of the plant and was subjected to phytochemical analyses including gas chromatography-mass spectrometry (GC-MS) and acute toxicity. 15 rats were used for the sub-acute toxicity evaluation, 5 rats in each group of 3, each were treated such...
September 2023
Journal of Medicinal Plants Research
Comprehensive liquid chromatography-mass spectrometry-based metabolomic analysis of Moringa oleifera seeds
Moringa oleifera seeds which are less explored and nutriment-rich have attracted scientific interest as the seed kernels contain numerous bioactive components with a variety of traditional uses. Besides its medicinal uses, Moringa oleifera biodiesel has shown remarkable potentiality in conducing to the decrease of greenhouse gases and guaranteeing sustainable supply of energy. In this study, the comprehensive analysis...
September 2023
African Journal of Agricultural Research
Intricacies of utilizing Turnitin tool in agricultural extension content writing in Nigeria
The study analyzed how Turnitin misjudges semantics used in agricultural extension writing in Nigeria. The paper applied thematic content analysis on 30 selected extension contents from Nigerian sources. Codes, percentage count and line graph were used in analysing data. The results show the inability of Turnitin to recognize agricultural extension semantics, such as, “The study was designed to…”, and...
September 2023
Journal of Infectious Diseases and Immunity
Prevalence and socio-demographic determinants of malaria among febrile under- five children in Abobo district, Southwest Ethiopia: Cross-sectional study
Malaria ranks among Ethiopia's top ten causes of illness and mortality among children under five. The disease continues to pose a severe public health risk in malaria-endemic regions like the Abobo district. Information on malaria prevalence and its determinants among under-five year’s children in the Abobo district is missing. A facility-based cross-sectional study was conducted at Abobo Catholic Health...
September 2023
Journal of Engineering and Technology Research
Heat and mass transfer investigation of unsteady magnetohydro dynamic nanofluid flow in a porous pipe in the presence of chemical reactions
This article presents a numerical investigation of mass and heat transfer effects on an unsteady Magnetohydrodynamic (MHD) nanofluid flow in a permeable pipe. The influences of the chemical reaction and magnetic flux are considered. With the central finite-difference technique, the fundamental equations are discretized. The resulting equations are solved numerically using methods of lines, bvp4, and shooting methods....
September 2023
African Journal of Biotechnology
Molecular characterization of probiotic Enterococcus hirae from fermenting acalypha wilkesiana (Irish Petticoat) and Talinum triangulare (Water Leaf) medicinal plants
Research on lactic acid bacteria (LAB) continues to be relevant in the development of nutraceuticals. In this study, edible medicinal Talinum triangulare and Acalypha wilkesiana were collected and subjected to spontaneous fermentation for 24 h. Samples were collected at 6 h intervals for determination of pH and microbial analysis. Determination of LAB percentage frequency occurrence, probiotic properties, and safety...
September 2023
Journal of Metabolomics and Systems Biology
Metabolite profiling of different solvent extracts of Moringa oleifera seeds and correlation with DPPH radical scavenging activity via 1H NMR-based metabolomics
In the present study, profiling of the Moringa oleifera seeds metabolome was carried out by employing proton nuclear magnetic resonance (1H NMR) spectroscopy combined with multivariate data analysis (MVDA) of 3 different solvent extracts. The principal component analysis (PCA) and partial least square-discriminant analysis (PLS-DA) score plot reveal that methanol extract was discriminated from ethyl acetate and hexane...
September 2023
International Journal of Fisheries and Aquaculture
Impact of school pond education programme conducted for adolescent students of Chitwan and Nawalparasi districts, Nepal
Malnutrition consists of a deficiency, excess or imbalance of energy and other macro-and micro-nutrients that changes the body composition and function, resulting in poor clinical outcomes. This study aimed to analyze the effectiveness of behavioural-based nutrition education to increase fish consumption among school children using two types of pond in Province-3 and 4 of Nepal constructed in secondary level of four...
September 2023
African Journal of Microbiology Research
Screening groundnut rhizobia for multiple plant growth promoting activities in Ethiopia
Rhizobia could exhibit plant growth-promoting mechanisms besides nitrogen fixation. In search of efficient rhizobia with multiple PGP traits, 72 groundnut nodulating rhizobia isolates were screened in vitro for their plant growth promoting traits like phosphate solubilization, production of indole acetic acid, ammonia, hydrogen cyanide, production of different hydrolytic enzymes and antifungal activity. About 72% of the...
September 2023
African Journal of Pharmacy and Pharmacology
Assessment of the in vivo acute toxicity of aqueous extracts of artavol® antimalaria herbal tea
Acute toxicity testing plays a pivotal role in the initial safety assessment of products. It examines the effects of a single or multiple doses of a product administered to animals or taken by humans within a 24-hour period. This test holds particular importance in determining the toxic characteristics of products intended for use in humans, animals, and agriculture. Despite the availability of numerous herbal medicinal...
September 2023
African Journal of Health Sciences and Technology
Clinical characteristics and induction outcome of pediatric acute myeloid leukemia (AML) patients treated at Tertiary Referral Hospital, Addis Ababa,Ethiopia: a retrospective cross-sectional study
The outcome of acute myeloid leukemia (AML) has remained a major concern in low- and middle-income countries. It is envisaged that the outcome will be far worse in resource limited settings. However, studies are lacking and many of these low-income countries lack an effective cancer registry. The study was conducted to assess the socio-demographics, clinical patterns and induction outcomes of children with AML. All bone...
September 2023
Journal of Horticulture and Forestry
Vegetative propagation of cocoa (Theobroma cacao) by grafting: Aptitude of grafting on four clones
The objective of this study is to evaluate the effect of hormones and fertilizers on the aptitude of grafting of four types of clones used in the seed fields for the creation, the regeneration, and the production of pods. The experimental design is a factorial trial (4 × 3 × 2 × 2) with hormone as the main block and other factors completely randomized within the blocks with three replicates. The...
September 2023
Journal of Stored Products and Postharvest Research
Assessing the efficacy of hermetic storage bags against woven polypropylene bags by farmers in Ghana for maize grain storage
The main insects that deteriorate stored maize grain in the tropics are maize weevils (Sitophilus zeamais). S. zeamais can cause significant post-harvest losses (PHL) in maize during storage. The objective of this study was to help farmers in Ghana appreciate and understand the benefits of using GrainPro bags compared to woven polypropylene bags (WPB) for storing maize grain. Eight farmers participated in the study,...
September 2023
Journal of Plant Breeding and Crop Science
Yield performance and stability evaluation of Striga-resistant sorghum (Sorghum bicolor [L.] Moench)
Sorghum is one of the most important cereal crops in Ethiopia. However, the productivity of this important crop is low owing to different factors, of which Striga is most detrimental. Multi-environment performance evaluation was carried out consisting of 11 sorghum genotypes. The objective was to select better performing, Striga-resistant and stable sorghum lines. The trial was conducted at three Striga prone areas of...
September 2023
African Journal of Agricultural Research
Zai pit combined with integrated nutrient management for improving soil aggregate stability, moisture content and microbial biomass in drylands of Eastern Kenya
This study sought to assess the impact of selected soil conservation and water harvesting technologies as promising options for alleviating soil moisture crisis, enhancing soil fertility and reducing soil erosion in the drylands of Eastern Kenya. An experiment was set up to investigate the responses of soil aggregate stability, moisture contents and soil microbial biomass carbon and nitrogen (SMBC and SMBN) to Zai...
September 2023
Journal of Agricultural Biotechnology and Sustainable Development
Reducing mineral fertilizer use for sustainable agriculture: The influence of seed coating with arbuscular mycorrhizal fungal spores and Leifsonia bacteria on maize (Zea mays L.) and sorghum (Sorghum bicolor (L.) Moench) production
Arbuscular mycorrhizal fungi (AMF) and plant growth promoting rhizobacteria (PGPR) have been proposed as biofertilizers for sustainable agriculture. Nevertheless, many of the delivery approaches for these beneficial microorganisms have the disadvantage of limited applicability. The study aim was to evaluate the fertilizing potential of seed coating with microbial fertilizers on growth and yield parameters of maize and...
September 2023
Journal of Public Health and Epidemiology
Study of risk factors in adolescence in terms of demographic changes
Adolescence is addressed as a life phase where the prospects for health are tremendous and future patterns of adult health are confirmed. Health in youth is the consequence of communications between prenatal and early childhood development and the precise biological, social-role, and demographical changes that accompany puberty, molded by social determinants, risk, and protective factors that affect the uptake of...
September 2023
African Journal of Business Management
The corporate governance of venture capital-funded startups in Africa
The number of venture-funded technology startups in Africa and the amount of venture capital investment has been on a steady rise in the recent past. We are now at a point in the evolution of the various startup ecosystems around the continent where we have had startups going through multiple rounds of venture funding, some increasing their valuations to unicorn status (that is, being valued at over $1 billion). Others...
September 2023
Scientific Research and Essays
Comparative study of water quality between upstream and downstream of Thamirabarani River using multivariate statistical tools
The present investigations were focused on the systematic analysis of surface water quality of the Thamirabarani River from upstream (Pechiparai dam to Gnaramvilai) to downstream (Vettuvenni to Thengaipattinam estuary) during the period from September 2020 to January 2021. The different hydrochemical parameters such as temperature, pH, EC, TDS, fluoride, turbidity, nitrate, phosphate, sulphate, chloride, calcium,...
September 2023
International NGO Journal
Presentation du theorem
September 2023
African Journal of Microbiology Research
Density and diversity of arbuscular mycorrhizal fungi in Anacardium occidentale L. plantations in Senegal
Cashew nut cultivation plays an important socio-economic role in Senegal. However, it suffers from several problems, including declining soil fertility which leads to low productivity. To overcome these constraints, the use of arbuscular mycorrhizal fungi (AMF) could be a sustainable alternative. However, the positive effects of AMFs may depend on their infectious potential, density, and diversity. So far, little...
September 2023
Scientific Research and Essays
Diurnal variability of the magnetospheric convective electric field (MCEF) from 1996 to 2019: Comparative investigation into the signatures of the geoeffectiveness of coronal mass ejections and magnetic clouds
This paper compared the signatures of shock activity and magnetic clouds (caused by geoeffective interplanetary coronal mass ejections (ICMEs)) on the diurnal variability of the magnetospheric convective electric field (MCEF) from 1996 to 2019. The investigation is done as a function of the orientation of the interplanetary magnetic field (IMF). The temporal variabilities of the MCEF of the two geomagnetic activities...
September 2023
International Journal of Water Resources and Environmental Engineering
Analysing rainfall and runoff patterns over the Niger River in Mali, West Africa
The Niger River plays an important role for all riparian countries, especially Mali because many irrigated areas use this resource for their daily activities. Climate change, leading to a reduction in rainfall, may have a negative impact on the Niger River. Therefore, it is useful for researchers to study this natural resource to address climate risks. The main goal of this current study is to characterize the river...
September 2023
African Journal of Agricultural Research
Effect of paddy sourcing methods on the volume of rice milled by small and medium-scale rice millers in Mwea, Kirinyaga County, Kenya
The purpose of the study was to determine the effect of paddy sourcing methods on the volume of rice milled by small and medium-scale rice millers in Mwea, Kirinyaga County, Kenya. Data were collected using semi-structured questionnaires from 90 small-scale millers and 70 medium-scale millers amounting to a total of 160 rice millers. The results from a Multinomial Endogenous Switching Regression (MESR) show that direct...
September 2023
International Journal of Livestock Production
Entomological inventory of bovine trypanosome vectors in the locality of Logone Birni, Far North Cameroon
In order to identify the vectors of bovine trypanosomiasis in the locality of Logone Birni, inventories were carried out from March to June 2020 in six sites. The purpose of this work is to contribute to the evaluation of the seroprevalence of bovine trypanosomiasis, to identify trypanosome vectors and to inventory the vector control methods already implemented in this area. Forty cattle were sampled for...
September 2023
Journal of Veterinary Medicine and Animal Health
Presence of Mycobacterium avium subspecies paratuberculosis, in goat’s milk, natural rennet and fresh cheese from San Luis Potosi, Mexico
Mycobacterium avium subspecies paratuberculosis (Map) is the etiological agent of paratuberculosis, which is one of the chronic diseases that cause financial losses in livestock production. Map can be present in cheese and other dairy products, especially those made with unpasteurized milk. Contamination of the food supply chain exposes humans to the bacteria, making the disease an important zoonosis of public health...
September 2023
African Journal of Pharmacy and Pharmacology
Hydrocotyle bonariensis Comm ex Lamm (Araliaceae) leaves effects on rabbit’s blood pressure and electrocardiogram
Hydrocotyle bonariensis Comm ex Lamm (Araliaceae) is traditionally used to treat various pathologies like hypertension. This work aims to evaluate the impact of hydro-ethanolic extract of its leaves on the blood pressure and cardiac activity of rabbits, and then to compare its hypotensive effect to conventional hypotensives. Intravenous injection of the hydro-ethanolic leaf extract (10; 20; 40; 80 and 160 mg /kg body...
September 2023
Botswana Journal of Economics
Export diversification and economic growth: Evidence from Zimbabwe
This paper employed the Auto-Regressive Distributed Lag (ARDL) model to examine the effects of export diversification on economic growth using Zimbabwe’s annual time series data for the period 1995 to 2020. The Herfindahl index (HI) was used as a measure of export diversification. The control variables included are; capital, labour, direct investment, GDP per capita, the number of export products and secondary...
September 2023
Journal of Plant Breeding and Crop Science
Evaluation of stem borer resistant maize genotypes for resistance to fall armyworm (Spodoptera frugiperda J.E. SMITH) infestation
Fall armyworm (FAW) is currently the most destructive insect pest of maize in sub-Saharan Africa (SSA). Varieties that combine high grain yield (GY) with tolerance to FAW would enhance and stabilize maize productivity in SSA. Genotypes resistant to lepidopteran pests like stem borer (SB) could serve as potential sources of alleles for development of FAW resistant varieties. This study was conducted to assess some...
September 2023
International Journal of Computer Engineering Research
Security threats affecting user-data on transit in mobile banking applications: A review
Mobile banking technology is beneficial to customers because it is convenient for conducting bank services remotely. Newer channels used for mobile banking such as mobile banking applications have been developed as an innovation that is utilized to offer traditional banking services remotely such as money withdrawals, deposits, cheque book requests among others. This saves time and costs of going to physical banking...
September 2023
Journal of Plant Breeding and Crop Science
Repeatability and number of harvests required for selection in coconut hybrid varieties
In the breeding of perennial plant species, the coefficient of repeatability is an important parameter because it allows for effective early selection of superior genotypes, thus saving time and cost. The objective of this study was to determine the minimum number of years required for observation to identify superior genotypes of coconut with a high degree of accuracy. Four hybrid varieties of coconut were evaluated in...
September 2023
African Annals of Thoracic and Cardiovascular Surgery
Current status of the pediatric congenital heart disease management pathway in low and low-middle income countries: A review
There is evidence that children with congenital heart disease (CHD) in low and low-middle income countries (LMICs) do not have access to timely intervention. The concept of the ‘Management Pathway’ (MP) for CHD has been developed to facilitate a pragmatic assessment of the quality of care. The MP is comprised three phases: diagnosis, treatment (intervention) and follow-up. Best practice recommendations...
September 2023
Journal of Pharmacognosy and Phytotherapy
Physicochemical, phytochemical and pharmacognostical parameters of a herbal plant Dracaena steudneri Engl.
Dracaena steudneri Engl. (family Dracaenaceae) has been used in managing various health conditions. This study evaluated its pharmacognostic, physicochemical and phytochemical parameters. The physicochemical analysis was done using WHO recommended parameters such as moisture content, ash values (total ash, water soluble ash, acid insoluble ash) and extractive values. Phytochemical screening was done by methods described...
September 2023
Journal of Public Health and Epidemiology
Prevalence of occupational disorders in low socio-economic manual stone crushers and healthcare seeking behaviour among quarry workers in North-Central Nigeria
Manual stone crushing is an established small-scale industry in Northern Nigeria with workers exposed to several hazards that place them at high risk of several medical conditions. The study aimed to describe health-related conditions of manual stone crushers in North Central Nigeria through a cross-sectional study. Workers were selected using a multistage sampling technique with 151 participants....
Page 4 of 1263, showing 50 records out of 63137 total, starting on record 151, ending on 200
