Articles
Page 9 of 1239, showing 50 records out of 61935 total, starting on record 401, ending on 450
December 2021
African Journal of Environmental Science and Technology
The environmental impact of landfill fires and their contaminant plumes at the Chunga landfill site, Lusaka, Zambia
The management of solid waste is recognised as a challenging activity with respect to the environment, particularly within rapidly growing urban centres in Lower Income Countries. This paper examines the issue of landfill-waste-generated fires and resultant pollution plumes sourced within the Chunga Landfill Site, Lusaka, Zambia. The authors present the results of a geospatial analysis research programme to map and...
December 2021
International Journal of Physical Sciences
Plastics: The good, the bad and the ugly
Plastics’ demand and consumption is on the increase since 1950s due to their unique properties. Their high use coupled with challenges in end-of-use handling and their inherent resistance to degradation has led to their accumulation in the environment, which is a matter of grave concern. This review presents a general overview of the state of knowledge of the diverse faces of plastics with special reference to...
December 2021
African Journal of Microbiology Research
Notice of Retraction: General steps in the production and establishment of transgenic chicken lines carrying a bacterial lacZ gene expressing ?-galactosidase
The editors of the African Journal of Microbiology Research (AJMR) are retracting the article, “General steps in the production and establishment of transgenic chicken lines carrying a bacterial lacZ gene expressing β-galactosidase” published in 2012 (Vol. 6(20), pp. 4344-4354, 30 May, 2012). This is because the data published were duplicated from a dissertation (submitted to the Graduate...
December 2021
African Journal of Educational Management, Teaching and Entrepreneurship Studies
The education manager in the covid-19 era: Dilemma to responsiveness and continuity of education
This paper discusses the challenges facing the educational manager in the era of Covid-19, which has not only disrupted education activities but also depleted actors of their economic prowess. The paper further examines specific education challenges, including; Syllabi circumvention, remodeled education calendar, declining students’ morality, disengaged staff and students as they diverted in search of...
December 2021
Journal of Ecology and The Natural Environment
Structural characterization of over-exploited forest species: Case of Garcinia kola Heckel (Clusiaceae) in Côte d’Ivoire
The purpose of this study is to define the structural characteristics and spatial distribution of endangered Garcinia kola in Côte d'Ivoire, in order to ensure sustainable management of the species. The study was conducted in two natural growth zones (Affery and Biankouma) of the species and involved 94 trees with a minimum diameter of 10 cm measured at 1.30 m from the ground. The data collection method...
December 2021
African Journal of Pharmacy and Pharmacology
Antimalarial drug utilization pattern amongst staff of three health facilities in Rivers State, Nigeria
The study assessed the level of antimalarial drug utilization amongst Staffers of three Health facilities in Rivers State. It was a cross sectional questionnaire based study. The study assessed the knowledge, attitude and malaria treatment and preventive practices of one hundred and five respondents gotten from amongst health workers at Terabor and Ahoada General Hospitals as well as College of Health Science and...
December 2021
Journal of Clinical Pathology and Forensic Medicine
Postmortem diagnosis of massive gastrointestinal bleeding
Giant peptic ulcers have a poor prognosis and are associated with more frequent bleeding, together with very high morbidity. The prognosis worsens if it also spreads to the duodenum, with probable involvement of adjacent organs such as the pancreas. The most serious complication of these is perforation, this being the first manifestation is up to a third cases. A 62-year-old male patient with a history of high blood...
December 2021
African Journal of Agricultural Research
Suitability analysis for scaling chickpea varieties in Ethiopia using multi-criteria evaluation and geographic information system (GIS)
The land suitability analysis and mapping were carried out using a geographic information system and multi-criteria approach for scaling chickpea (Cicer arietinum L.) varieties in Ethiopia. Therefore, the biophysical variables of climate, topography, and soil were considered for suitability analysis. The environmental factors’ layers of chickpea varieties pixel values were classified and given a rate and ranked....
December 2021
International Journal of Physical Sciences
Solar activities and geomagnetism: Long-term statistical study of magnetics clouds activity day’s occurrence as a function of the phases of solar cycles 11 to 24
This article examines magnetics clouds activity day’s occurrence as a function of the different phases of the solar cycle and the duration of their geoeffectiveness. The study period extends from cycle 11 to cycle 24. Magnetic clouds activity day’s occurrence were identified using pixel diagram from the years 1867 to 2019, that is to say, fourteen (14) solar cycles. The results show that in the study period:...
December 2021
African Journal of Medical and Health Sciences
Assessment of socio-economic impact of COVID-19 pandemic on households: A case study of households in Anambra State, Nigeria
With the spread of the Coronavirus disease in 2019 (COVID-19) affecting all spheres of human endeavors, even households have not been spared. However, impact of the pandemic on households in Nigeria is unclear which necessitated this study which was aimed at assessing the impact of the COVID-19 pandemic on Nigerian households Awka South, Anambra State. An online survey with a descriptive cross-sectional design was...
December 2021
African Journal of Agricultural Research
Determinants of rural households’ livelihood diversification decision: The case of Didessa and Bedelle District, Bunno Bedelle Zone, Oromia Regional State, Ethiopia
Beside its greatest contribution to Ethiopian economy, agricultural sector has been highly affected by climate change. Consequently, masses of people have been left food insecure every year. As an option, rural households have been participating in diversifying their livelihood sources. The present study aims to identify the major factors affecting rural household’s participation in livelihood diversification...
December 2021
African Journal of Oral Health Sciences
Risk factors and complications associated with dental extraction treatment in the Western Region of Cameroon: A cross sectional study
Complications associated to dental extraction remain a concern and can be a source of morbidity. However, adequate management could avoid these complications. The purpose of this study was to assess the risks factors and complications associated with dental extraction in the Western Region of Cameroon. This was a cross sectional study carried out between January 25 to April 30, 2019. Patients 15 years and above were...
December 2021
African Journal of Biotechnology
Effect of foliar application of nitrogen-phosphorus-potassium fertilizers on nutrient uptake and protein content of maize
The effect of foliar application of nitrogen-phosphorus-potassium (NPK) fertilizers on nutritional status and yield of maize (Zea mays L.) were investigated through a study conducted in a zonal agricultural research station of University of Agricultural Sciences, GKVK Bengaluru (India). The experiment was laid out in randomized complete block design. The treatments consisted of two levels of soil application (75 and...
December 2021
Journal of Agricultural Extension and Rural Development
Shaping interaction among improved cowpea’s farming: Do Institutions have a role to play? A case of Oyam district in Uganda
This paper examines the roles played by institutions in shaping the interactions among improved cowpea farmers in Oyam district. A cross sectional research design and qualitative approach was used. Focus Group discussions were held and members were purposely selected. The study found out that the cowpea farmers normally provide and share farm saved seeds preserved from the previous harvest with fellow farmers while...
December 2021
International Journal of Physical Sciences
Theoretical and experimental studies of effective carriers lifetime: Magnetic effects
In this manuscript, we present a study on the effects of magnetic field on charge carrier effective lifetime within the base of a polycrystalline PV solar cell p-n junction. This study is elaborated in two forms as a theoretical study and an experimental study. Indeed, under various magnetic field values, PV solar cell is illuminated by using the light from stroboscopic. From a theoretical approach mainly use the open...
December 2021
Journal of Public Health and Epidemiology
Virological outcome in HIV-1 infected patients: 5-year follow-up experience in Côte d’Ivoire, West Africa
Although viral load (VL) measurement has become the reference tool for monitoring antiretroviral treatment in patients living with HIV, most West African countries do not have it systematically. Long-term virological data are rare. Here, the matter is to describe virological outcomes and resistance patterns at 5 years in HIV-1+ patients and to identify early factors associated with long-term virological outcome. This is...
December 2021
African Journal of Agricultural Research
Inter row spacing and Np fertilizer application rates effect on economics, growth, yield and yield component of mung bean (Vigna radiata L) cultivation at Mirab Abaya, Southern Ethiopia
Mung bean, the most important and short duration pulse crop, grown for grain from tropical to sub-tropical climates is low in productivity and lacks recommended inter-row spacing and NP fertilizer rate for various agro-ecologies. A study was conducted to determine inter-row spacing and NP fertilizer rates for yield and yield components of mung bean at Mirab Abaya. The experiment consisted of three inter-row spacing (15...
December 2021
Educational Research and Reviews
Family support and school-to-work transition: Perceptions and experiences of university graduates in Kampala city, Uganda
This study explored the experiences and implications of transitioning from school to work without family support for university graduates in Uganda. The research was a qualitative exploratory study in Kampala city, Uganda. The data was collected through in-depth individual interviews with university graduates (first-degree graduates). The research findings showed that young men and women, upon graduation, strongly...
December 2021
International Journal of Genetics and Molecular Biology
Genetic variability of Maure zebu in Mali using SSR markers
In Mali, Maure’s zebu breed has good dairy production abilities. Females are often used as a matrix in crosses in peri-urban areas with exotic breeds. Despite the enthusiasm of its productive abilities, the genetic diversity of this breed is not yet sufficiently assessed. In order to contribute to a better understanding of the genetic diversity of this breed, 82 animals were chosen from the farms of four districts...
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...
Page 9 of 1239, showing 50 records out of 61935 total, starting on record 401, ending on 450
