Articles
Page 2 of 1197, showing 50 records out of 59820 total, starting on record 51, ending on 100
September 2020
Journal of Cereals and Oilseeds
Understanding biodiversity in sorghums to support the development of high value bio-based products in
sub-Saharan Africa
Sorghum [Sorghum bicolor (L.) Moench] is one of the most important cereals worldwide with great genetic diversity. Like most small grains it has good adaptation to drought prone and marginal areas were other cereals are not productive. Globally, sorghum has been underutilized compared to other cereal staple crops however, there is growing interest in sorghum and its related products due to its unique nutritional traits,...
September 2020
African Journal of Agricultural Research
Depletion of phosphate rock reserves and world food crisis: Reality or hoax?
Phosphate rock (PR) deposits are the major source of phosphate (P) fertilizers for soil fertility replenishment. The demand for P fertilizers in the year 2014 was 42,706,000 tons and was expected to reach 46,648,000 tons in 2018. Majority of PR deposits are found in only a few countries including Morocco, USA and China. There is however conflicting information on the extent of world PR reserves, therefore, complicating...
September 2020
African Journal of Agricultural Research
Growth performance of royal purple and white guinea fowl varieties and their crosses under an intensive management system
Commercialization of guinea fowl production in many countries is growing and the demand for their meat is high. The study evaluated the growth of crossbred royal purple x white variety relative to purebred royal purple and white varieties. Twenty pure-bred white, 20 purebred royal purple and 20 cross-bred keets were housed together in 4 houses resulting in 4 replications. The keets were fed broiler starter crumbs from...
September 2020
African Journal of Medical and Health Sciences
Levels of some reproductive hormones, cadmium and lead among fuel pump attendants in Benin City, Nigeria
Infertility is a common public health challenge in Nigeria. The causes of infertility in both males and females are multifactorial, and the contributions of endocrine abnormalities had been reported from both the Northern and Southern regions of Nigeria. The effect of occupational exposure on endocrine levels among petrol pump attendants has not been sufficiently documented in our setting. This study evaluated the...
September 2020
African Journal of Agricultural Research
Pastoral farming system and its temporal shift: A case of Borana zone, Oromia National Regional State, Ethiopia
The study was conducted in Borana zone, which is located at about 570 km from Addis Ababa with the objective of understanding the farming system of Borana pastoral area. The primary data was collected using survey questionnaires from 160 households selected using multistage sampling design. The study confirmed that the farming system in Borana pastoral area has been increasingly diluted, unlike the earlier decades where...
September 2020
International Journal of Water Resources and Environmental Engineering
The need for integrated flood management approach from social, economic and environmental perspectives: The case of Upper Awash River Basin
Flooding has been a critical problem in our globe causing huge damage on human lives as well as socio-economic and environmental assets. The upper Awash river basin in Ethiopia, which is the target of this study, is one such region that is affected by recurrent flooding. Thus, there is a need to develop appropriate and sustainable management mechanisms to mitigate flood impacts. An integrated flood management approach...
September 2020
African Journal of Medical and Health Sciences
Severity of coronary atherosclerosis in hypertensive: A postmortem study
The development of coronary atherosclerosis and ischaemic heart disease had been attributed to risk factors that include but not limited to hypertension. These factors were determined without reference to data from autopsy studies. It is likely that there is no significant difference on the grades of coronary atherosclerosis in hypertensive’s when compared with the non-hypertensive’s. The aim of this study,...
September 2020
Journal of Stored Products and Postharvest Research
Effect of treatments with bunch bagging on production, fruit quality and damage by thrips of banana
The effect of treatments of banana with blue polyethylene bag covering bunches on the production parameters at harvest, fruit quality during ripening and damage by thrips has been determined. Nine treatments with banana bunch blue polyethylene bags, including the control were evaluated. A complete randomized block design was used. Four replicates per treatment were used with five bunches each. Bunch weight, finger...
September 2020
African Journal of Biotechnology
Phenotypic and genetic characterization of selected Kenyan groundnut (Arachis hypongaea L.) varieties
Groundnuts are among the principle economic oilseed largely cultivated in warm regions of Kenya and contribute to domestic food security and cash revenue. The study aimed at evaluating genetic diversity and phenotypic characterization of groundnut varieties grown in some parts of Kenya. Six varieties (ICG83708, ICGV99568, CG7, ICGV12991, RV and Chalimbana) obtained from KALRO (Kakamega) based on quality traits. Seeds...
September 2020
African Journal of Biotechnology
Evaluation of sugar beet monogerm O-type lines for salinity tolerance at vegetative stage
Increased production of sugar beet under rainfed conditions on saline–sodic soils in the Iranian areas highlights the importance of salt tolerant varieties. Screening of genotypes for salinity tolerance is difficult in field due to heterogeneity of physical and chemical properties of soil. In order to evaluate the salinity tolerance of 21 sugar beet monogerm O-types lines, a pot experiment was conducted using a...
September 2020
African Journal of Environmental Science and Technology
Irrigation water quality analysis of Mitheu Stream in Machakos Municipality, Kenya
Water samples for physico-chemical, heavy metals and bacteriological analyses were collected from 4 selected points along Mitheu Stream flowing through Machakos Municipality once every month from June 2019 to September 2019. The samples were analyzed in Kenya Plant and Health Inspectorate Service and Water Resources Authority laboratories then data subjected to one-way analysis of variance to test significant...
September 2020
African Journal of Business Management
Co-operative and saving societies (SACCOS) and poverty reduction in Lango and Kigezi sub-regions of Uganda: A comparative empirical study
The paper examines the contributions of co-operative and saving societies in poverty reduction in Lango and Kigezi sub-region. The study adopted a comparative and cross-sectional survey design where bivariate and multivariate data analyses were used to analyze the data. Specifically, correlation and regression analysis were done to determine the relationship between financial contribution by savings and credit...
September 2020
African Journal of Microbiology Research
Coronavirus disease 2019 (COVID-19) pandemic: What is the level of knowledge, attitude, and practice in Kandahar, Afghanistan?
There is a rising concern for the rapid increase of COVID-19 confirmed cases in Kandahar province. From zero reported cases until 17th March 2020, then Kandahar saw a sudden rise in the cases by 16th May 2020. Decreased literacy rates, poor health education, lack of facilities, inconsistent government policies, and defying coronavirus safety advisory by the public have resulted in the rapid spread of COVID-19. The...
September 2020
Educational Research and Reviews
Affordances for connecting culture and Mathematics: Moving from curriculum to school textbooks
Researchers have generally agreed that textbooks as a major conveyor of the curriculum play a dominant role in modern education scenes across different school subjects. The study analyzed a set of four learners’ textbooks and their corresponding teachers’ guides which are used as set books for teaching mathematics at Grade 9 level in South Africa. These textbooks were produced in response to the demands of...
September 2020
African Journal of Pharmacy and Pharmacology
Hepatoprotective and free radical scavenging activities of methanol extract fractions of Capparis decidua Edgew (Forssk.) (Capparidaceae)
The main objective of the study is to evaluate the hepatoprotective and antioxidant activities of different extracts and fractions of a Sudanese traditionally used plant, Capparis decidua Edgwe (Forssk.) (Capparidaceae). Carbon tetrachloride (CCl4) induced hepatotoxicity in rats, and DPPH radical scavenging activity (RSA) were the methods used to evaluate the hepatoprotective and antioxidant activities of this plant...
September 2020
Journal of Public Health and Epidemiology
Review of Cannabinoid hyperemesis syndrome: Implications for Puerto Rico
In recent years in the United States there has been a shift towards legalization of marijuana for medical and recreational purposes. The medical use of cannabis is legalized in 33 states, 4 territories and the district of Columbia. Medical marijuana use was legalized in Puerto Rico in 2015. Cannabinoid Hyperemesis Syndrome (CHS) is one of the effects of the use of cannabis. This paper will attempt to...
September 2020
Journal of Public Health and Epidemiology
Birth defects among immigrants: Impact of exposure to a new environment, a 20 year population-based study
Birth defects remain a global health issue. With increasing rates of migration, it is important to explore the role of immigration and the impact of new environments, especially food fortification, on birth defect prevalence. The prevalence of birth defects in the first year of life was compared between children born to immigrant and non-immigrant mothers in Ontario, Canada. Data on country of origin and arrival date...
September 2020
African Journal of Environmental Science and Technology
An appraisal of high definition survey approaches in subsidence monitoring of crude oil storage tanks
Vertical and horizontal motion of the solid earth surface due to geological and geodynamical phenomena are generally consequences of terrain deformation. Variations as a result of the deformation affect structures, particularly large storage facilities that are steel and/or concrete in nature. The criticality of these phenomena underscores the need to carryout regular measurements and monitoring of its effect in all...
September 2020
African Journal of Environmental Science and Technology
Effect of agitation on the process of bi methanization of sludge from low-temperature wastewater treatment plants
Wastewater treatment is a serious environmental problem, especially in developing countries such as Morocco. Their discharge into the natural environment has negative impacts on water resources and the environment. They are therefore purified to reduce the concentration of the main pollutants. Often biological remediation is used when wastewater contains biodegradable organic pollutants. This generally leads to treated...
September 2020
Journal of Agricultural Extension and Rural Development
Seasonal climate dynamics, perceptions and multiple risk adaptations: Lessons from Smallholder mixed agro ecosystems in Semi-arid Kenya
Climate variability is frequently associated with instances of dry spells and droughts, which principally result from highly variable rainfall and increasing temperatures. In mixing agro ecosystems, these phenomena primarily affected crop and livestock practices of smallholder farmers through generating social, economic and environmental losses. Resulting water scarcity, in quality and quantity, at household and...
September 2020
Journal of Veterinary Medicine and Animal Health
Sero-prevalence and risk factors of African Horse Sickness among donkeys in a highland area of Kenya
A study was conducted to determine the prevalence and risk factors for African Horse Sickness (AHS) in donkeys in the highland area of Kiambu County, Kenya. Data on the risk factors was collected using semi-structured questionnaires administered to 146 donkey owners while blood samples collected from 398 donkeys both during the rainy and dry seasons. Antibodies against AHS were detected using competitive antibody Enzyme...
September 2020
African Journal of Agricultural Research
Evaluation of blended fertilizer on growth performance and yield of onion (Allium cepa L.) at irrigated conditions Tselemti District North Western Tigray, Ethiopia
Onion has economically important crop in the study area. However, its low production is due to poor soil fertility management. Thus, the present study was initiated to determine the optimal rate of blended fertilizer required for onion production. A field experiment was conducted for two consecutive years during 2018 and 2019 at farmer's field Tselemti district, the experiment had 8 treatments arranged in a...
September 2020
African Journal of Agricultural Research
Household determinants of food security in rural Central Uganda
This study contributes to the literature by presenting empirical evidence on the drivers of rural household food security, which is critical for food security policy implementation. We used household survey data collected from 265 households from rural central Uganda, and a binary logistic regression model to estimate the determinants of household food security. Households with more land size, no livestock, and smaller...
September 2020
African Journal of Business Management
The impact of leadership styles on employee commitment in Madda Walabu University
Effective leaders are able to contribute directly by enabling competent and committed employees through encouraging them to perform well. Studies in the area of organizational behavior literatures have indicated that among the major factors affecting organizational success and failure are leadership styles and employee commitment. The aim of this paper was to examine the impact of leadership styles on academic...
September 2020
Educational Research and Reviews
Karl Pearson’s chi-square tests
Statistical tests have been an important tool for interpreting the results of research correctly. The factors that influence the determination of the statistical test are research purpose, hypothesis and data. Today, statistical tests are used more frequently, and they aim to analyze whether statistical tests are used in accordance with research. For this purpose, frequently used chi-square tests are discussed and in...
September 2020
Journal of Geology and Mining Research
LA-ICP-MS and EMP relationships in pyrite grains from Barberton Greenstone Belt, South Africa: An attempt for quantification
Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS) count per seconds (cps) results were tested for quantification, using the same spot analyses of Electron Microprobe Analyses (EMP) in weight percentage (wt. %); they were obtained from selected pyrite grains from Sheba, New Consort, and Fairview gold mines of the Barberton Greenstone Belt (BGB). Theoretically, data obtained from the same pyrite...
September 2020
African Journal of Medical and Health Sciences
Review of the antioxidant properties of wild edible plants in Ethiopia
This work aims to study the potential and importance of wild edible plants (WEPs) as antioxidants in treating different diseases caused by free radicals. A total of 67 species belonging to 50 genera under 36 families and naturally growing in Ethiopia were recorded after assessing all available documents. About 16.2% of the total (413) WEPs were recorded in the country. The plant families with more number of species...
September 2020
African Journal of Agricultural Research
Banana pest risk assessment along banana trade axes running from low to high altitude sites, in the Eastern DR Congo and in Burundi
Pests and diseases greatly contribute to the decline in banana yields, food and income insecurity in the Great Lakes region of Africa. Understanding people’s role in pest and disease spread at landscape level is crucial for effective pest and disease management. To determine this, focus group discussions (FGDs) targeting 10 experienced farmers (50% female and 50% male) were conducted in 27 villages along four...
September 2020
African Journal of Environmental Science and Technology
Assessment of the health impacts of WASH interventions in disaster-prone communities in three regions of Northern Ghana
This study evaluated the health impacts of WASH interventions in 9 intervention communities against 9 control communities in disaster-prone areas in northern Ghana. We extracted community-specific data on patient-reported cases of WASH-related diseases from health facilities in the study areas. Also, we used key informant interviews and household questionnaires to seek information for validation. The impact was measured...
September 2020
African Journal of Environmental Science and Technology
Assessment of chitosan – coated Aspergillus–niger as biosorbent for dye removal and its impact on the heavy metal and physicochemical parameters of textile wastewater
Efficiency of biosorbent from chitosan coated dead fungal biomass of Aspergillus niger for dye removal with its impact on metals and physicochemical parameters of textile industry wastewater were assessed. Dye and metal concentrations of wastewater were determined using UV and Atomic Absorption Spectrophotometers respectively, before and after column biosorption using simulation optimized parameters with biosorbent....
September 2020
African Journal of Microbiology Research
Bacterial community composition and diversity along the southern coastlines of the Atlantic Ocean in Cape Town, South Africa
The spatial distribution and diversity within bacterioplankton assemblages in four coastal sites along the southern points of the Atlantic Ocean were examined using the Illumina high-throughput that targets 16S rRNA genes to examine indigenous bacterial assemblages in the littoral zones along the coast of the ocean. Results of the study showed very similar bacterial representation between the coastal sites with majority...
September 2020
International Journal of Medicine and Medical Sciences
Demographic and clinical determinants of multi drug resistant tuberculosis among HIV infected patients in Tanzania
Multi Drug Resistant Tuberculosis (MDR-TB) is a public health challenge, which itself remains a global public health problem. Its impact is worsened by co-infection with Human immunodeficiency virus (HIV). In order to institute successful TB control strategies, factors for development of MDR-TB must be understood. This study aimed to identify and describe clinical and demographic determinants for development of MDR-TB...
September 2020
Journal of Hospitality Management and Tourism
Community based ecotourism development in Meqdela Amba, Ethiopia: Current development barriers
Ethiopia has very distinct natural, cultural and historic products that could attract visitors from all over the world. Meqdela Amba, a community in Ethiopia, is endowed with a unique historical heritage and outstanding biophysical features. The aim of this study was to identify the major barrier of the Meqdela Amba community based ecotourism development in Tenta district. The study used descriptive research design and...
September 2020
African Journal of Agricultural Research
Enhancing maize production in a Striga infested environment through weed management practices, sowing date and improved crop varieties
A two-year investigation into the effects of weed management practices, sowing dates and maize varieties was made in a Striga endemic field at Minna, Nigeria. The treatment was a factorial combination of variety (SAMMAZ 15, 17, 37, 40 and SUWAN-1-SR-Y), weed management practices (weedy check, two hoe weeding (HW) at 3 + 6 weeks after sowing (WAS), pre-emergence (PE) Atrazine at 2.4 kg a.i ha-1 + 1 HW at 6 WAS and PE...
September 2020
African Journal of Biotechnology
Diversity and genetic structure in natural populations of Croton linearifolius (Euphorbiaceae) based on molecular markers
Croton linearifolius Mull. Arg, an endemic species of Brazil, has insecticidal activity proven. To the detriment of its importance as a natural resource, the studies of this species are incipient, as well as the strategies applied to its management and conservation. The diversity and genetic structure in 61 individuals of C. linearifolius collected in the National Forest Contendas do Sincorá (NFCS) were...
September 2020
African Journal of Biotechnology
Evaluation of different fungi and bacteria strains for production of cellulases by submerged fermentation using sugarcane bagasse as carbon source: Effect of substrate concentration and cultivation temperature
Cellulases (enzymes of great potential in biotechnology) are currently of interest due to their applicability in the hydrolysis of cellulose from lignocellulosic materials, producing fermentable sugars for alcohol production. The great demand for efficient enzymes is the driving force to prospect new cellulases-producing microorganisms, as well as to optimize the enzyme production step. Many variables can be optimized...
September 2020
African Journal of Food Science
Comparative analysis of nutritional contents in the leaf, pulp and seed of Adansonia digitata L. consumed in Adamawa State, Nigeria
Adansonia digitata L. is a tree commonly called Baoba tree which is a native of African savannah widely distributed in arid zones of Sahara. This study was carried out to investigate the native uses and nutritional content (peoximate composition and minerals profile) of the leaf, pulp and seed of A. digitata L. (Baoba). The methods adopted for data collection included well-structured questionnaire, field and...
September 2020
Educational Research and Reviews
Examination of postgraduate theses on string instruments in Turkey
The amount of scientific researches is increasing steadily. In today's information age, parallel to technological advances, scientific research keeps pace with innovation and development. Recent research in social and humanities sheds light on many innovative approaches and guides. In this study, answers were sought with the help of the document analysis model for answering the "What is the distribution of...
September 2020
Educational Research and Reviews
Comparison of value acquisitions of children of divorced and non-divorced parents
This research is a descriptive study aimed at comparing the value acquisitions of children of divorced and non-divorced parents. The study consists of 57,296 children who attended pre-school education in Ankara, in 2018. Of this sample was 54 divorced families and 4-5 year-old children of the same class and of the same socio-economic level and gender, who agreed to work. In order to reveal the compatibility of the data...
September 2020
African Journal of Microbiology Research
Biochemical and molecular characterization of yeasts isolated from Nigerian traditional fermented food products
Yeasts are very important in food production by affecting the quality and safety of different food products. Yeasts are commonly used in the production of beer, wine and bread; but many yeast species have been isolated from different African fermented foods. The present study aims to determine the biodiversity of yeasts isolated from selected Nigerian fermented foods. A combination of phenotypic and molecular tests were...
September 2020
African Journal of Agricultural Research
Floral activity of Apis mellifera (Hymenoptera: Apidae) on Bidens steppia (Asteraceae), Cordia africana (Boraginaceae), Pittosporum viridiflorum (Pittosporaceae) and Psychotria mahonii (Rubiaceae) in Nyambaka (Adamawa, Cameroon)
Experiments were conducted at Nyambaka in the Adamawa Region of Cameroon, from March 2017 to November 2018, for assessing the apicultural potential of Bidens steppia, Cordia africana, Pittosporum viridiflorum and Psychotria mahonii. In order to improve the beekeeping productivity, it is important to investigate the diversity of bee plants in a given apiary site. To that end, the foraging behaviour of Apis mellifera...
September 2020
African Journal of Agricultural Research
Spatiotemporal hotspot patterns of wheat rust incidence and severity in Ethiopia
Wheat rusts, stem rust, leaf rust, and stripe or yellow rust are the major biotic constraints in all wheat-growing regions of Ethiopia. Therefore, the main objective of this study is to identify the temporal-spatial hot spot pattern of wheat rust incidence and severity in Ethiopia. A GIS-based hotspot analysis tool was employed to identify the spatial distribution of hot spot patterns and temporal trends using survey...
September 2020
African Journal of Pharmacy and Pharmacology
Assessment of the antioxidant and antimicrobial activities of Caralluma deflersiana growing in the South of Saudi Arabia
Reactive oxygen species and oxidative stress are related to a large number of human degenerative diseases. Consequently, plants have been investigated across the world to exploit their potential antioxidant and antimicrobial activities. In the current study, Caralluma deflersiana is native to Saudi Arabia and was screened to assess its antioxidant and antimicrobial potential activities as well as the phenolic...
September 2020
African Journal of Biotechnology
Spectroscopic and chemical analysis of a Nigerian hybrid Hevea Brasiliensis (Rubber) seed oil for product quality assessment in technical applications
Rubber seeds from a Nigerian hybrid rubber tree were dried in an oven at 110°C for 2 h to 7 wt% moisture content and cold-screw pressed at 30°C to obtain an oil yield of 28 wt%. Chemical compositional, nuclear magnetic resonance (NMR) and Fourier transform infra-red spectroscopy (FTIR) analyses were conducted on the oil sample extracts. Chemical analysis of the oil indicated iodine value of 136.07 g I2/100 g...
September 2020
African Journal of Biotechnology
In vitro efficacy of two microbial strains and physicochemical effects on their aflatoxin decontamination in poultry feeds
The efficacy of two microbial isolates, Bacillus spp. (B285) and Saccharomyces spp. yeast strain (Y833), in reducing aflatoxin concentration in poultry feeds in comparison with the commonly used commercial chemical binder, bentonite, was investigated using the VICAM ® fluorometer. The influence of the poultry feed matrix, pH (4.5 and 6.5), and temperature (room temperature, 37 and 42ºC) on the aflatoxin...
September 2020
African Journal of Agricultural Research
Impact of native arbuscular mycorrhizal fungi based fertilizers on to increase maize productivity in North Benin
Mycorrhizae are symbiotic associations between fungi and host plants, which confer several advantages, including good mineral nutrition. Arbuscular mycorrhizal fungi (AMF) then present an effective alternative in order to develop a sustainable agriculture that is less dependent on mineral fertilizers. The objective of this study was to assess the impact of organic fertilizers based on native arbuscular mycorrhizal fungi...
September 2020
African Journal of Plant Science
Allelopathic effect of extracts from selected weeds on germination and seedling growth of cowpea
(Vigna unguiculata (L.) Walp.) varieties
Chromolaena odorata, Euphorbia heterophylla and Tridax procumbens are common weeds that are prevalent in cowpea fields. The physiological influence of three dilution concentrations of the aqueous root and shoot extracts of the weeds were examined on seed germination, plumule length, radicle length, fresh and dry weights of plumule and radicle of two varieties of cowpea in the laboratory. The experiment was laid out in a...
September 2020
African Journal of Plant Science
A review of plant characterization: First step towards sustainable forage production in challenging environments
This review paper attempts to give account of how plant characterization assists the availability of information on desirable plant traits, to enhance selective breeding for environmental stresses and thus attain sustainable forage production. Plant characterization is referred to as an account for heritable characters varying from agronomical, morphological to molecular markers. It simplifies grouping of...
September 2020
African Journal of Food Science
Quality assessment of Borassus aethiopum Mart fruit pulp pectin precipitated with various solvents
Borassus aethiopum Mart fruits are underutilized in Africa and most of them are left to rot in the field. These fruits have great potential as an alternative and commercially viable pectin source for the pectin industry. Physicochemical and rheological characteristics of B. aethiopum pectins are significantly affected by the extraction process which permits the isolation of tailored pectin of specific applications in...
September 2020
African Journal of Agricultural Research
Effect of potassium on yield and growth of Enset (Ensete ventricosum (Welw.) Cheesman) in Dale District, Sidama Region, Ethiopia
Only limited work has been done on fertilizer requirement of Enset crop. An experiment was conducted in Dale district, Sidama region, Ethiopia to investigate the response of Enset to potassium (K) fertilizer for two years (2016-2018). The treatments were: 0, 80, 150 and 200 kg K/ha as potassium chloride (KCl), single levels of phosphorus (P) (20 kg/ha), sulfur (S) (11.15 kg/ha) and boron (B) (0.57 kg/ha) as blended NPSB...
Page 2 of 1197, showing 50 records out of 59820 total, starting on record 51, ending on 100
