Articles
Page 1 of 1229, showing 50 records out of 61440 total, starting on record 1, ending on 50
November 2021
African Journal of Environmental Science and Technology
Use of effective microorganisms to enhance cost-effective biogas purification at the household level
This study investigated the use of effective microorganisms (EM) to enhance cost-effective biogas purification at household-level application. It involved experimental setups for biogas purification in two different runs: 4 L activated EM and 1 L dormant EM by bubbling biogas through EM purification units. Biogas composition was analyzed using an industry-standard biogas analyzer. The results indicated that EM has the...
November 2021
African Journal of Medical and Health Sciences
Management of ruptured pseudoaneurysm of the right common carotid artery in a resource-limited setting (Case report)
Carotid artery injuries with pseudo-aneurysm are uncommon but associated with central neurologic dysfunction. We present a 26-year-old man with a giant bleeding pseudo-aneurysm of right common carotid artery managed by emergency sternotomy, neck exploration and repair of the aneurysm. On the right side of the neck was a 10 × 8 cm mass occupying almost the entire posterior triangle. It was pulsatile, tender with...
November 2021
Journal of Medicinal Plants Research
Effects of hydromethanol hypocotyls extract of Borassus aethiopum on sperm and gonadal indices of male Wistar rats
Infertility resulting from sperm dysfunction is a serious health problem leading to psychological, economic, and medical implications worldwide. Borassus aethiopum is a plant that has been used as an aphrodisiac. This study evaluated the effect of hydromethanol hypocotyls extracts of B. aethiopum on the sperm and gonadal indices of male Wistar rats. The extract was prepared and administered orally at doses of (250, 500...
November 2021
Journal of Medicinal Plants Research
Preliminary screening of the antimicrobial activity of nine medicinal plant species from Burkina Faso
Infectious diseases, including skin infections, have always been treated by plants and other natural products since ancient times. This study investigated the antimicrobial activity of nine medicinal plant species from Gonsé Forest and Bangreweogo Park, Burkina Faso on seven microbial strains involved in skin infections. Sixty-eight organic and aqueous extracts from leaves, stem and root barks of the nine plants...
November 2021
African Annals of Thoracic and Cardiovascular Surgery
Bovine aortic arch: Cases report
A bovine aortic arch is the most common variant of aortic arch branching in humans with a frequency ranging from 15 to 27% (1-2). It will be considered as a risk factor for aortopathy as anevrysm and dissection. Two cases were reported with association of bovine aortic arch and aortopathy. In both cases, the discovery of the anomaly of the aortic arch was fortuitous. A bovine aortic arch is frequent in patients with...
November 2021
Journal of Toxicology and Environmental Health Sciences
Acute and subacute toxicity studies of hydroethanolic extract of Baillonella toxisperma Pierre fruit pulp
Baillonella toxisperma Pierre, fruit pulp is largely used in traditional medicine. No toxicity study was done on this fruit pulp. The purpose of this study was to assess the acute and subacute toxicity of the hydroethanolic extract of the fruit pulp of B. toxisperma. An acute toxicity study was conducted at 2000 mg/kg of body weight as a 14-day limit test in Wistar albino rats. Throughout the experiment, general signs...
November 2021
African Journal of Agricultural Research
Characterization of Alternaria brassicicola isolated from tomato in Burkina Faso, and use of two essential oils for its control in vitro
Alternaria brassicicola is considered a weak pathogen of tomato in the field, but with a high potential for mycotoxin production in fruit. However, this species belongs to a diverse and closely related group of species (Alternaria with small spores), which often makes their morphological identification and control difficult. In the present research, a molecular identification of tomato Alternaria isolates was made using...
November 2021
African Journal of Agricultural Research
Optimization of fertilizer recommendation for bread wheat production at Adiyo District of Kaffa Zone, Southwestern Ethiopia
An experiment was conducted on farmer's fields during the main cropping season of 2016/2017 in Adiyo district, Southwestern Ethiopia to optimize fertilizer rate recommendation for major cereal production systems by using bread wheat (Triticum aestivum L.) as test crop. Experiment was laid out in a randomized complete block design (RCBD) with three replications for sixteen treatments. The grain yield and yield...
November 2021
African Annals of Thoracic and Cardiovascular Surgery
Use of a composite survival curve to optimise timing of surgical repair of Truncus arteriosus
Surgical repair of Truncus arteriosus aims to improve long term survival. A clear understanding of the natural history and achievable surgical outcomes informs surgical decision making with respect to the timing of surgery. We sought to determine if it is ever too late to repair T. arteriosus. Pubmed and Google scholar were searched between January 1st 1966 and July 31st 2021. The proximal similarly model was used to...
November 2021
International Journal of Physical Sciences
High pressure phase stability, elastic anisotropy and electronic properties of BC2N
Crystal lattice structure searching by Particle Swarm Optimization (PSO) and first-principles structural optimization have been used to explore polymorphs of BC2N, possessing sp3 hybridization, under a varying applied hydrostatic pressure. Two low Gibbs free energy structures were identified: one with a primitive orthorhombic structure and Space Group, Pmm2, and the other with a primitive tetragonal structure and Space...
November 2021
International Journal of Medicine and Medical Sciences
Antimicrobial susceptibility patterns of Staphylococcus aureus in a tertiary referral hospital in Nairobi, Kenya
Staphylococcus aureus is a leading cause of hospital and community acquired infections globally. Methicillin-resistant S. aureus (MRSA) prevalence has been reported to be high in various settings and is associated with increased morbidity, mortality and risk of nosocomial outbreaks. Surveillance of prevalence and antibiotic susceptibility patterns is important to ensure appropriate antibiotic prescription. The objective...
November 2021
Journal of Plant Breeding and Crop Science
Stay-green genes contributed for drought adaptation and performance under post-flowering moisture stress on sorghum (Sorghum bicolor L. Moench)
The need to accelerate breeding for increased yield and better adaptation to drought is an issue of great concern because of the high demand for food and potential climate change poses further challenges. The study was designed to introgress drought-tolerant possessing genes/quantitative trait loci into popular and farmer-preferred cultivars through marker-assisted backcrossing (MABC) and assess for post-flowering...
November 2021
African Journal of Agricultural Research
A case study analysis of extension service provision in Malawi
Evidence suggests that a lack of extension agents impedes the effective delivery of agricultural extension services in Malawi and many other developing nations. The purpose of this study was to examine the initiatives taken by the Malawi Forum for Agricultural Advisory Services Delivery (MaFAAS) to address the extension shortage. The research questions were addressed using a qualitative case study approach. MaFAAS and...
November 2021
African Journal of Environmental Science and Technology
Analysis of the deposit conditions of sedimentary series of fluvio-lacustrine and aeolian origin in the Djourab desert, in Northern Chad
The detailed sedimentary study of the deposit sequences of the ancient hominid sector (SahelanthropustchadensisalisToumaï) of Toros-Menalla, presented here addresses new aspects of the sedimentary geology of the Chad Basin through an original field study of Moi-sediments: Pliocene of the northern basin of CHAD. This is an original contribution that sheds light on new knowledge of sedimentary series of...
November 2021
African Journal of Educational Management, Teaching and Entrepreneurship Studies
The hidden curriculum
Nowadays, in schools, students seem to gain much knowledge on the topics that are not included in the official statements of the course guides. Learning that contains information, beliefs, and the ways of behaving in the society relates to a hidden curriculum of schooling which is contrasted with the formal one. It is determined as the lesson conducted informally and usually unintentionally in a school system. The...
November 2021
African Journal of Agricultural Research
Impact of small-scale irrigation schemes on household food security in the context of persisting droughts: Comparative quasi-experimental analysis of irrigation water users and non-users in Southwest Ethiopia
A comparative quasi-experimental analysis was made on the impact of small-scale irrigation interventions on household food security, taking irrigation water and farm extension users and non-users in persisting drought contexts in South West Ethiopia. A cross-sectional survey was employed to collect data from randomly selected respondents from both groups. The daily calorie intake was significantly different for the two...
November 2021
International Journal of Nursing and Midwifery
Variables that may affect the traditional signs of perinatal asphyxia
The objective of this study was to prove if certain variables related to labour affect the traditional signs of perinatal asphyxia (cardiotocography records, Apgar score and the umbilical artery pH). This is an observational, multicentric, longitudinal, analytical, cohort study in pregnant women at term admitted to the delivery room of Hospital Infanta Cristina, Hospital de Fuenlabrada and Hospital Puerta de Hierro...
November 2021
African Journal of Agricultural Research
Water and nutrient balances under selected soil and water conservation practices in semi-arid Ruzizi plain, Eastern Democratic Republic of Congo
Soil water deficit is a major production-limiting factor in the predominantly rainfed agriculture of the Ruzizi plain, eastern Democratic Republic of Congo (DRC). Appropriate soil and water conservation (SWC) practices would be a valuable option for maximizing water uptake by plants in the context of water demand and supply unbalance. This study assessed the efficiency of selected SWC practices in improving water and...
November 2021
African Journal of Agricultural Research
Determination of proximate composition, amino acids, and some phytochemical properties of sesame seed capsule (Sesamum indicum L.) in semi-arid Zone of North-Eastern Nigeria
The study was conducted to determine sesame seed capsules' proximate composition, amino acid, and phytochemical properties as a potential feed resource. Homogeneous triplicate representative samples were analyzed following scientific protocols. The results indicated that the sesame seed capsule contained 75.41% carbohydrate, 3.59% ether extract, 4.32% protein, 93.57% dry matter, 12.01% crude fiber, and 4.77% ash....
November 2021
International Journal of Fisheries and Aquaculture
Cost-benefit analysis for small-scale aquaculture production systems: A case of South West Region of Cameroon, Africa
Food is necessary for good health as well as the social and political stability of the society. Fish food provides essential nourishment especially proteins of high biological values. It is highly nutritious, tasty and easily digestive. Enterprise budgeting and descriptive statistics were used to estimate the value of smallholder aquaculture systems on a census population using a semi-structured questionnaire in the...
November 2021
Journal of Soil Science and Environmental Management
Impact of emissions from brick industries on soil properties, agricultural crops and homegardens in Chittagong, Bangladesh
This study was conducted in the Chittagong district of Bangladesh to explore the impact of emissions from brick kilns on crop yields from agricultural lands which were located at distances of 100, 101-500, 501-1000, and 1001-2000 m from brick kilns. The survey was conducted by using a semi-structured questionnaire during the period from January to March 2019. It also included soil sampling on farmlands located at...
November 2021
International Journal of Physical Sciences
Monitoring the loss of mass or the volume recessed into a waveguide by resonant signal principle: Nano-inscribed slots in DUV210 micro-resonators
The goal of this paper is to study the impact of a differential mass loss or a lack of material (void) directly located into the core structure of matter together with the possibility of measuring its effect by a resonant signal surface at optical frequencies. To this end, the focus has been on the evolution of effective indices or eigenvalues of micro-resonators as relevant models. Specific lack of mass was measured by...
November 2021
Journal of Environmental Chemistry and Ecotoxicology
Assessment of transition metal oxides, post transition metal oxides in suspended or settled dust particles by wavelength dispersive X-rays fluorescence (WD-XRF)
Settled dust or suspended particles of dust in air contains transition and post-transition metal oxides like Chromium oxide {Cr2O3}, Manganese oxide {MnO}, Nickel oxide {NiO}, Copper oxide {CuO}, Zinc oxide {ZnO}, Titanium oxide {TiO2}, Iron oxide {Fe2O3}, Zirconium oxide {ZrO2}, Lead oxide {PbO} and Aluminum oxide {Al2O3} and the study was carried out to find out the composition of these metallic oxides and the...
November 2021
Journal of Development and Agricultural Economics
The role of informal commodity traders’ association in the marketing of farm products in selected rural markets in Ghana
This article is aimed at examining how the activities of women trader’s association in rural market of Ghana affect the marketing of agriculture products of smallholder farmers. Hundred market women trades’ association operators from ten rural markets were interviewed. A case study analysis technique was used for data analysis. The results showed that women trader’s associations are a useful phenomenon...
November 2021
Journal of Public Health and Epidemiology
Water, sanitation, and hygiene practices in secondary schools in the Buea Health District of Cameroon
This study assessed water, sanitation and hygiene practices in public and private secondary schools in Buea. A cross-sectional descriptive study was conducted from November 2017 to June 2018 in Buea. Students from Baptist High School Buea, Government Bilingual High School Muea, Buea, Government Technical High School Molyko, Buea and Summerset Secondary School Buea were assessed on water, sanitation and hygiene...
November 2021
Journal of Public Health and Epidemiology
Epidemiological and clinical features associated to the survival of COVID-19 patients in the department of Littoral in Benin from March to July 2020
The epidemiological, clinical and therapeutic outcomes of COVID-19 vary across countries from March 16th to July 30, 2020, 1805 cases were registered in Benin, and among these cases, about 36 deaths occurred. The aim of this work was to study the epidemiological and clinical features associated with the survival of people with COVID-19 in the Department of Littoral in Republic of Benin, from March to July 2020. This was...
November 2021
Journal of Public Health and Epidemiology
The distribution of disease in the Republic of Suriname - a pharmacoepidemiological analysis using the claims database of the State Health Foundation of the year 2017
The patterns of prescription drug use in Suriname in the year 2017 have been determined with the purpose of obtaining indications about the distribution of disease in the country. The claims database of the State Health Foundation (Staatsziekenfonds, SZF) of Suriname was used for calculations of prescription rates of the fifty most prescribed drugs overall and after stratification according to gender, age, and residence...
November 2021
Journal of Veterinary Medicine and Animal Health
Surgical repair of bilateral traumatic lateral patellar luxation associated with injury of medal stifle joint capsule and fascia in a shetland pony
An 8-day-old female Shetland pony was referred to the Jeonbuk animal medical center for evaluation of bilateral hindlimb lameness. The foal had been severely lame in the both hind leg since birth. The luxation of the patella was confirmed on physical examinations. During the operation, extensive soft tissue damage and hemorrhage were observed around the medial patellar ligament. Lateral patellar luxation was surgically...
November 2021
African Journal of Biotechnology
Genetic diversity analysis of sorghum [Sorghum bicolor (L.) Moench] races in Ethiopia using simple sequence repeats (SSR) markers
Sorghum [Sorghum bicolor (L.) Moench], is believed to be originated in Ethiopia and Sudan. Although, many morphological and molecular diversity studies reveal the existence of genetic variations with sorghum populations, their distribution within basic races were not considered. Hence, the present study aimed to analyze the extent and distribution of genetic variation within basic Ethiopian sorghum landraces using SSR...
November 2021
Educational Research and Reviews
The analysis of picture storybooks aimed at pre-school children in terms of child rights violations
Books introduce children to social life and provide them with the opportunity to expand their imaginary worlds. Pre-school children are influenced by books more than adults. Children can identify themselves with the heroes in the books and choose to act like them. Therefore, the features of the heroes in children’s picture books, what they go through, and the intended message of the story have significant...
November 2021
Journal of Economics and International Finance
Regime Detection in Sub-Saharan Africa Equity Markets – A Hidden Markov Model Approach
Complaints of heightened risks in the sub-Saharan African equities markets are rife in the practitioner literature. Investors need an understanding of the volatility dynamics in these frontier markets. This paper uses the Hidden Markov Models to detect the points of regime changes in the volatility in the markets of Ghana, Kenya, Nigeria and Botswana. The daily closing indices of the exchanges and modeled 2- and...
November 2021
African Journal of Pharmacy and Pharmacology
Investigation on the possibilities for ex vivo- and in vitro-derivation of initial myeloid and lymphoid precursors from hematopoietic and non-hematopoietic stem/progenitor cells
Initial myeloid and lymphoid differentiation of hematopoietic and non-hematopoietic stem/progenitor cells by appropriate ex vivo- and in vitro-incubation was evaluated. So, hematopoietic stem/progenitor cells from mouse spleen were ex vivo-incubated in the presence of different interleukins, as well as of various combinations of them. Non-hematopoietic mouse embryonic stem cells (mESCs) were in vitro-incubated in the...
November 2021
Journal of Agricultural Biotechnology and Sustainable Development
Energy consumption for wheat production under two different tillage systems in River Nile State, Sudan
Energy is a scarce resource that must be studied, as it is essential for productive activities like agriculture. In this study, energy consumed for wheat production under conventional and zero-till in River Nile State, Sudan was assessed. Energy consumed for land preparation and harvesting was considered for each tillage system. Data on fuel consumption, energy equivalent factors, human and mechanical work rate/h and...
November 2021
Journal of Public Health and Epidemiology
Risk factors and treatment for migraine in adults in Ouagadougou: A cross-sectional survey
The aim of this study was to describe the migraine treatments implemented in Burkina Faso. It was a descriptive cross-sectional study with a prospective data collection from August to November, 2019 in Burkina Faso. The study included 653 randomly selected participants aged 16 years and over. Female gender, high socioeconomic status, coffee and alcohol consumption, high blood pressure and smoking were significantly and...
November 2021
Journal of Public Health and Epidemiology
Seasonal malaria chemoprevention in older children: magnitude, consequences and opportunities
Seasonal malaria chemoprevention is tailored for children 3 to 59 months in areas of high transmission of malaria between July and October. However, SMC was administrated to children outside the pre-defined age range. This study aims to evaluate to which extent the treatment was given to these children. The authors carried out a cross sectional survey in November 2018 in eight (8) health regions. Sampled of 944...
November 2021
African Journal of Biotechnology
Advances on the application of non-coding RNA in crop improvement
Thanks to committed plant breeding researchers over the few decades, many problems associated with food supply and qualities have been improved. Food security is an exceptionally serious worldwide issue via world climate change, the increase in human population, and the use of plants for bioethanol production in current years. Improved tolerance to abiotic and biotic stress, resistance to herbicides, improved yield, and...
November 2021
International Journal of Biodiversity and Conservation
Floristic composition, diversity and community structure in a secondary rainforest in Ibadan, Nigeria
Secondary forests may act as buffer area and serve as reservoir for biotic components that are lost from primary forest due to anthropogenic disturbances. This study investigated the floristic composition, diversity and community structure of Cocoa Research Institute of Nigeria (CRIN), Idi-Ayunre, Ibadan, Nigeria. Twenty-five main plots (each 50 m × 50 m) were randomly mapped out to enumerate tree species, five 10...
November 2021
African Journal of Agricultural Research
Food-fodder performance of food and malt barley cultivars in Ethiopian highlands
In Ethiopia, barley selection has focused on grain yield traits. Limited information is available on straw yield and its nutritive value. The aim of this study was to screen cultivars for grain and straw yield and nutritive value using forty cultivars of food and malt barley types at two locations in Ethiopia (Bekoji and Kofele) in 2018. Food-fodder quality traits investigated were crude protein (CP), neutral detergent...
November 2021
African Journal of Environmental Science and Technology
Improving future temperature projections with bias correction methods in Lake of Guiers/Senegal
Climate models are generally used to evaluate the climate change impacts. However, they have important biases at the regional or local scales. This study evaluates the future temperature projections in Lake of Guiers/Senegal. For this, the daily maximum and minimum temperature from the ensemble mean of five (5) Coordinated Regional climate Downscaling Experiment (CORDEX) regional climate models (RCMs) under the...
November 2021
African Journal of Agricultural Research
Soil fertility status, fertilizer application and nutrient balance in SNNPR, southern Ethiopia in contrasting agro-ecological zones of Ethiopia
Soil fertility status evolution is a decision making tool for the sustainable soil nutrient management. To evaluate its status, about 29 research data were collected and meta data analysis were made using SPSS for the selected soil chemical parameters. The soil was moderately acidic and salt free, 93.2% of Zinc (Zn), 100% of Manganese (Mn), 100% of Iron (Fe) and 79.3% of Copper (Cu) status were in sufficient range...
November 2021
African Journal of Environmental Science and Technology
Spatio-temporal dynamics of land use on the expansion of coffee agroforestry systems in Cameroon’s production basins
Diachronic analysis of satellite images was used to assess the spatiotemporal dynamics of land use and land cover change in the coffee production basins of Cameroon, located in the forest agro-ecological zones (Moungo and Haut-Nyong) and the highland humid savannah (Noun). A survey of farmers was carried out to identify land use and changes in the area of coffee agroforests over time. While the period 1980 to 2001 was...
November 2021
African Journal of Biotechnology
Statistical modeling of effective doses in hormetic dose-response relationships by reparameterization of a bilogistic model for inverted U-shaped curves
Hormesis is a biphasic dose (concentration)-response phenomenon characterized by low dose stimulatory and high dose inhibitory effects exerted by stressors on living organisms. Recently, there has been increased interest in the phenomenon and statistical models for its exploration in toxicological studies. The bilogistic model of Beckon et al. is one of such models for modeling biphasic dose-response relationships in...
November 2021
Journal of Soil Science and Environmental Management
Sustained nutrient delivery system: A new perspective in bioremediation
Crude oil induced pollution on soil environment is an increasing trend due to incessant accidental release of this component into the environment. Bioremediation which is considered the most effective clean-up tool is faced with the challenge of sustained nutrient delivery to enhance and sustain the activities of oleophilic microbes. Slow release fertilizer (SRF) is a purposely designed system that releases nutrients in...
November 2021
Journal of Toxicology and Environmental Health Sciences
Testicular toxicity of the ethanolic extract of the stems of Massularia acuminata (G. Don) Bullock ex Hoyl in rats
The ethanolic extract of the stems of Massularia acuminata is widely used in several regions of Côte d’Ivoire for the improvement of the male sexual performance. The study was carried out with a view to investigate the effect of long term use of the plant on rat. For this purpose, four groups of 6 rats each, aged 8 weeks and weighing on average 125 ± 23.16 g. Groups 2, 3 and 4 were treated repeatedly...
November 2021
African Journal of Agricultural Research
Economic efficiency of cricket production reared under improvised cage system for improved food production
In the recent past, cricket production has attracted a myriad of interests in the Global Food Sector. However, low production, limited input resources and rearing systems constrain the utilization of crickets. Scanty information exists on sundry input resources for upscaling of cricket production and how such inputs can be efficiently managed. This study sought to determine economic efficiency of improvised cricket...
November 2021
African Journal of Agricultural Research
Evaluation of the effect of the use of anti-insect nets on vegetable production in southern Benin
The objective of this research is to assess the effects of the use of insect nets in vegetable production. To achieve this goal, data were collected in four departments of southern Benin (Mono, Couffo, Ouémé and Plateau) using an interview guide and a structured questionnaire. A total of 223 producers chosen at random from these areas where the CRSP Horticulture Project is located were surveyed. The...
November 2021
African Journal of Food Science
Evaluation of rapid beta-lactam antibiotic residues detection kits for raw milk
Platform tests are usually simple and rapid quality control tests which serve as a basis for accepting, setting aside or rejecting raw milk. Some of the rapid antibiotic residues test kits available in the Kenyan market include: Delvo test Fast BL, Delvo Sulphadiazine Penicillin No Tablet (SPNT), Mtusbio Beta-lactam BLQ Rapid Test Kit and Ringbio beta-lactam, tetracycline, sulfa drugs, BTS 3 in 1 TriTest S. Ndungu...
November 2021
African Journal of Agricultural Research
Soil fertility status for potato production in the central highlands of Malawi
The potato is one of the most important food and cash crops in Malawi, but current yields are low and the fertilizer recommendations rely on outdated soil fertility information. To understand the influence of soil factors in limiting current potato production, the mineralogical and physicochemical soil characteristics of 26 farms in the central highlands of Malawi were evaluated. Cluster analysis with clay, crystalline...
November 2021
African Journal of Microbiology Research
Fungal contamination of dental appliances: A cross- sectional study
Orthodontic treatment makes necessary to use a longtime fixed-band appliance, it offers suitable conditions for fungal growth, dentures also allow fungal contamination on their surfaces. The aim of our study is the identification of the fungal species colonizing surfaces of dental appliances, the cross-sectional study was carried out on 60 patients wearing dental appliances, during 5 months, and sterile swabs were used...
November 2021
Journal of Mechanical Engineering Research
TRNSYS 16: A veritable solar modelling and programming simulation tool used in the design of a continuous solar powered adsorption refrigeration system
Project feasibility gave rise to the need for simulation. Simulation of a project leads to reduction in production cost, which ensures the success of the proposed project. Also, it provides initial design data for the experimental project. Thus, the design analysis and variables used for project simulation must be designed properly, revised, tested, and re-tested to guarantee how accurate the experimental design is....
Page 1 of 1229, showing 50 records out of 61440 total, starting on record 1, ending on 50
