Articles
Page 4 of 1202, showing 50 records out of 60100 total, starting on record 151, ending on 200
October 2020
African Journal of Agricultural Research
Challenges in greenhouse crop production by smallholder farmers in Kisii County, Kenya
Despite the success in greenhouse farming by large scale horticultural farmers in Kenya, smallholder greenhouse farming is beset by many challenges leading to over 30% failure rates. Reasons for the high failure rate are not clearly understood. The objective of this study was to assess the challenges in greenhouse crop production by small-scale farmers in Kisii County, Kenya and provide recommendations for sustained...
October 2020
African Journal of Biochemistry Research
Correlation between glycated hemoglobin and venous blood sugar in diabetic patients monitored in Abidjan
The aim of this study was to determine the correlation between glycated hemoglobin and blood sugar levels in diabetic subjects carried out in Abidjan. This cross-sectional study included 100 patients with diabetes monitored, for three months, for whom glycated blood glucose and hemoglobin were performed, this after informed consent of the patients. Pearson and Spearman correlation tests were used, at the 5% threshold....
October 2020
African Journal of Agricultural Research
Determination of solar energy requirements for indirect cooling combined with evaporative cooling for storage of fresh produce
A solar photovoltaic (SPV) system generating power to run a 53-m3 storage for indirect air-cooling combined with evaporating cooling (IAC+EC) for providing a cool environment for storage of tomatoes under small-scale farming was evaluated. The experiment consisted of nine 330 W solar modules, twelve 230 AH Gel batteries, 145 VDC solar charge controller, 5 kW inverter, 290 W ventilation fan, 260 W water pump,...
October 2020
African Journal of Agricultural Research
Field evaluation of lentil germplasms for their resistance to Ascochyta blight (Ascochyta lentis) under field conditions
Ascochyta blight caused by Ascochyta lentis is a fungal disease with a major importance in Ethiopia. It has the potential to cause appreciable reduction in yield. The present study was conducted to identify the sources of resistance in lentil to ascochyta blight in 2018 main cropping season in hot spot area in AlemTena research station. The total of 148 accessions were received from Ethiopian Biodiversity Institute were...
October 2020
African Journal of Business Management
Social responsibility practices of leading firms in an industry: Driver for corporate citizenship in Kenya
The study examines the relationship between the Corporate Citizenship (CC) practices of leading firms in their industries and their level of advancement in CC. The study took a conceptual approach and used two cases not as empirical evidence but for illustration purposes. The main hypothesis was that CC practices of leading firms find expression from the fact that these firms tend to play two significant roles. First,...
October 2020
African Journal of Agricultural Research
Genetic diversity analysis and construction of selection index of selected tomato genotypes
To study the genetic variability and selection index of selected tomato genotypes, an experiment was conducted at the farmer’s field of Chirirbandar Upazilla of Dinajpur District, Bangladesh. Ten tomato genotypes were evaluated in a randomized completely block design with four replications. The study results displayed high heritability plus higher genetic advance for all the traits studied. Among the traits, plant...
October 2020
African Journal of Political Science and International Relations
“Mother tongue won’t help you eat”: Language politics in Sierra Leone
This article addresses the question, how does Sierra Leone’s language regime, moderated through formal and informal education, contribute to post-war globalization dynamics? Since Sierra Leonean independence from Britain in 1961, Krio, a type of Creole, has gone from being the mother tongue of a small ethnic minority to the lingua franca, particularly in Freetown, the state capital. English has been Sierra...
October 2020
African Journal of Agricultural Research
The use of microchondrometer to assess test weight in small samples of triticales and oats
The test weight or hectoliter weight is an important parameter used to classify the quality of the grain. Globally, it is evaluated by using 250, 500 or 1000 ml devices. Despite its importance, there is no standard equipment to assess it in small samples from the research plots. This study aims to test a newly developed microchondrometer (15.30 ml) in the triticale and oats. A second microchondrometer (31.26 ml) was...
October 2020
Journal of Plant Breeding and Crop Science
Genetic diversity of Ethiopian durum wheat (Triticum durum Desf) landrace collections as reveled by morphological markers
Knowledge of the extent and pattern of genetic diversity within and among populations is crucial to identify useful breeding materials and design appropriate collection and conservation strategies. Genetic diversity of 160 durum wheat (Triticum durum Desf) accessions was studied using 15 morpho-agronomic traits. The field studies for morphological characterization were undertaken at Adadi Maryam and Ginchi locations...
October 2020
Journal of Plant Breeding and Crop Science
Participatory maize hybrid evaluation for different cropping systems in the central rift valley in Ethiopia
This study was conducted at research and farmers’ field. Seven new promising and three standard checks in total ten hybrid varieties were planted and evaluated in 2013 main season. At research field, the genotypes were tested under sole and inter cropping in two replications and each genotype was planted in two rows using spacing 0.75 cm and 0.30 cm between consecutive maize rows and between plants, respectively....
October 2020
Journal of Plant Breeding and Crop Science
Multi-environment trial and spatial analysis for yield performance of sorghum [Sorghum bicolor (L.) Moench] hybrids in dry lowland sorghum growing areas of Ethiopia
Sorghum is one of the most widely preferred and cultivated crops in Ethiopia. It is grown for food and feed components. In the developed world, exploitation of heterosis in most crops (Maize, Sorghum, Rice, etc.) is high. There is a clear need to develop sorghum hybrids in Ethiopia to improve their livelihood by increasing sorghum production and productivity. One of the strategies for increasing sorghum yield is through...
October 2020
Journal of Economics and International Finance
Okun’s law: An asymmetrical approach for Zimbabwe (1991-2018)
The Okun’s law, which explains the inverse relationship between unemployment and output growth, has been observed to have broken down in most developing economies. The failure by researchers to take into account the asymmetric properties of the relationship between unemployment and output has been attributed to the limitations of the Okun’s law in explaining the inverse relationship between unemployment and...
October 2020
Journal of Parasitology and Vector Biology
Spatiotemporal analysis of Plasmodium falciparum genetic diversity and multiplicity of infections in Senegal from 2014 to 2017
Malaria showed a significant decline in Senegal following the scale up of malaria control around the country with epidemiological disparities. Assessment of multiplicity of infection (MOI) and genetic diversity of Plasmodium falciparum population evolution proved its efficacy in monitoring malaria control. However, to our knowledge few studies focused on the dynamic changes of genetic diversity and MOI in Senegal. The...
October 2020
Journal of Engineering and Technology Research
Effect of variation of different additives on some selected properties of silica sand mould for aluminium castings
The quality of castings in a green sand mould is influenced significantly by its properties, such as green compressive strength, shear strength, shatter index, compatibility, moisture content, permeability and others which depend on input parameters. Usually, the aforementioned properties of a particular casting differ due to variation in composition of the moulding sand mixtures, sand grain shape and size, bonding...
October 2020
International Journal of Physical Sciences
Effects of elevated humidity on stratospheric ozone content in the tropics
This study examines the effects of elevated humidity on stratospheric ozone content in the tropics, a case study of Nigeria. The specific stations in Nigeria studied with their co-ordinate include Makurdi (7.7°N 8.5°E), Maiduguri (11.9°N 13.2°E), Kano (12.0°N 8.5°E), Port-Harcourt (4.9°N 7.0°E) and Lagos (6.5°N 3.4°E). Using monthly mean stratospheric ozone data from Earth Probe...
October 2020
African Journal of Political Science and International Relations
China’s engagement in the promotion of peace and security in the Horn of Africa: An interplay of big power responsibility and geopolitical interest
The Horn of Africa is a term given to the geographic map in the North East part of the African continent. The region connects Africa to the outside world like the Middle East, Europe and Asia that indicates its geopolitical significance. Despite its geopolitical significance, the region remains one of the most unstable, underdeveloped and security wise volatile than any other region of Africa. These multiple challenges...
October 2020
African Journal of Environmental Science and Technology
Assessment of the phytoremediation capabilities of bracken fern (Pteridium aquilinum) for the remediation of heavy metals (Pb, Ni and Cd) contaminated water
This study was carried out to investigate the potential uptake of heavy metals (Pb, Ni, and Cd) by Pteridium aquilinum plant from aqueous solutions. The whole plant strands were cultured in 36 experimental pots containing 5, 10 and 15 (mg/L) of Pb2+, Ni2+ and Cd2+ aqueous solutions. The plants were harvested after 24, 48, 72 and 96 hours of exposure and segmented into leaves, stem and root, respectively. The heavy...
October 2020
African Journal of Microbiology Research
Antibacterial properties of traditional Sudanese medicinal materials against selected enteric
bacterial strains
Folklore medicine in Sudan used medicinal materials to treat inestinal infections caused by bacterial infections or contamination of food. Methanolic and aqueous extracts of different parts of Acacia nilotica (L.) Delile gum, Haplophyllum tuberculatum Juss.aerial parts, Hydnora abyssinica A. Br.fruits, Nigella sativa L seeds, Rhynchosia minima (L.) DC. roots,and Usnea molliuscula lichen were tested for antibacterial...
October 2020
International Journal of Biodiversity and Conservation
Impact of cocoa cultivation in the forest-savannah transition zone of western Côte d'Ivoire
The mountainous relief of Western Region of Côte d'Ivoire, as well as large savannas bordering the dense semi-deciduous forests, did not make this part of the country an area suitable for cocoa cultivation. However, in search of forest land for cocoa cultivation, a large influx of people has been observed in this area over the last decade. The objective of this study is to assess the impact of human pressure...
October 2020
African Journal of Microbiology Research
Prevalence and drug-resistance profile of plasmid-borne extended spectrum beta-lactamase (ESBLs) resistance genes in multidrug resistant Escherichia coli from HIV-1 positive individuals in Jos, Nigeria
Production of extended-spectrum beta-lactamases (ESBLs) can lead to treatment failures when the antibiotics are used. This study detected ESBLs genes on Multidrug Resistant Escherichia coli from HIV-infected individuals attending some hospitals in Jos. Eighty (80) isolates of multidrug resistant (MDR) E. coli were screened for plasmids. ESBLs genes including bla-CTX, bla-TEM and bla-SHV were detected on the plasmids...
October 2020
African Journal of Biotechnology
Treatment of mangrove and well contaminated water using activated charcoal from coconut shell in
Douala, Cameroon
The main objective of this study was to evaluate the contribution of activated carbon, based on coconut shell, in the treatment of mangrove and well contaminated water from the BONAPRISO district. More precisely, it consisted of preparing the activated carbon, then characterizing the mangrove water and the well water through a manual of sampling procedure; and finally verifying that the activated carbon produced had a...
October 2020
International Journal of Psychology and Counselling
A qualitative study of psychological support needs of family caregivers of hospitalized Lassa fever patients during an outbreak in an endemic state in Nigeria
The study assessed the emotional reactions and perceptions of stigmatization among family caregivers of Lassa fever patients. Six focus group discussions were held among 48 purposively selected and consenting family caregivers in a Lassa fever treatment facility in South-South Nigeria during an outbreak. An interview guide structured to elicit views and perceptions on Lassa fever, reactions to the news of a positive...
October 2020
African Journal of Biotechnology
Genetic progresses from over four decades of sorghum [Sorghum bicolor (L.) Moench, Poaceaea family] breeding in Ethiopia
Information on genetic progress achieved over time from a breeding program is absolutely essential to develop effective and efficient breeding strategies. Thirty-seven improved lowland sorghum varieties released between 1976 and 2016 and promising advanced lines were evaluated to estimate the genetic progresses made in 40 years of sorghum breeding in Ethiopia. The study was conducted at 2 environments during 2018...
October 2020
Journal of Chemical Engineering and Materials Science
Characterization of rice husk ash prepared by open air burning and furnace calcination
Rice husk (RH) is an agricultural waste, and easily available in rice growing areas. The husk is mostly burnt as a way of getting rid of it. The ash obtained after burning or calcination may have economic application, mainly dependent on its properties. These properties in turn depend on the calcination method. However, for commercial viability, and for many applications, the calcination method should not only be as...
October 2020
Journal of Horticulture and Forestry
Effects of furrow dimensions on water productivity and yield of onion at small scale Irrigation Ilu Gelan district West Shoa Ethiopia
This study was conducted at the Ilu Gelan district Western Shewa zone of Oromia Regional State to evaluate the impacts of furrow dimensions on yield and water productivity of onion. The experiment was laid out in a randomized complete block design with three treatments replicated four times. The experimental treatments including farmer practice or T1 (farmer practice with top width of 23 cm, bottom width of 13 cm and...
October 2020
Journal of Agricultural Extension and Rural Development
Trends in livelihoods options over a five year period: A case of Murewa smallholder farmers
Inter and intra seasonal trends in livelihoods options have been reported at country and rarely at ward level in Zimbabwe. Evidence based on local level trends in livelihoods options is rare. This study thus reviewed data on livelihoods activities based on the Agriculture Food Security Monitoring System (AFSMS) surveillance system. It was conducted by the Department of Crop and Livestock Production formerly...
October 2020
African Journal of Business Management
The rules of business transformation
Business transformation initiatives update a company’s production methods and aim to ensure it operates more efficiently. However, the author suggests that a reactive, piece meal approach to needed change relegates a company to lagging behind its market and stagnates its growth. A proactive, holistic approach to business transformation ensures that a company is attuned to its evolving market environment. It...
October 2020
African Journal of Agricultural Research
Effect of kernel type on hardness and interrelationship with endosperm chemical components of Malawian local maize (Zea mays L.) varieties during storage
The aim of this study was to establish the attributes of kernel type based on kernel hardness and its interrelationship with maize endosperm chemical components, which are essential during storage. Three local varieties and one hybrid variety commonly grown by smallholder farmers in central Malawi were used. For storage experiment, the maize samples were infested with Prostephanus truncatus, larger grain borer (LGB) for...
October 2020
Journal of Ecology and The Natural Environment
Source predictions of polycyclic aromatic hydrocarbon (PAHs) concentration in water, sediment, and biota (FISHES) from Ethiope River, Delta State, Southern Nigeria
This study was carried out to predict the source of the sixteen priority polycyclic aromatic hydrocarbon (PAH) compounds in water, sediment, and biota samples from River Ethiope, Delta State, Southern Nigeria. The samples were extracted using soxhlet extraction and analysed with GC/FID. Results obtained for total concentration of the sixteen priority PAHs ranges from 0.185 to 3.679 mg/kg (sediment), 0.000 to 27.353...
October 2020
African Journal of Agricultural Research
Cassava leaves and azolla as crude protein supplement feed to east african short horned Zebu Heifers
The study was undertaken to explore the nutritive potential of cassava leaves and Azolla as supplementary source of crude protein to cattle fed on either mixed range grass hay or Bracharia Mulato II. Two experiments were carried out, the first was the determination of the biomass yield of Azolla, its relative growth rate and doubling time while the second was a feeding trial to determine the performance of small East...
October 2020
African Journal of Agricultural Research
Effect of nitrogen rate and intra-row spacing on yield and yield components of maize at Bako, Western Ethiopia
Maize is highly responsive to nitrogen fertilizer rates and plant spacing. Continuous efforts have been carried out to improve the yield potential of maize by modifying their architecture through breeding methods with aim of increasing maize yield through increasing number of plants ha-1. Hybrid BH-546 is the recently released variety for this purpose but its optimum nitrogen rate and spacing has not been determined...
October 2020
Journal of Geology and Mining Research
Numerical and laboratory investigation of effect of soil reinforcement on settlement of strip foundations
Reinforcement of loose soils with geosynthetics in order to achieve a strengthened soil-reinforcement system, with enhanced tensile strength and reduced settlement is an important subject in the field of geotechnical engineering. In this study, a soil reinforcement system was used to increase the bearing capacity of sandy soil beneath a strip foundation. A small-scale laboratory model was built to investigate the...
October 2020
African Journal of Plant Science
Abundance and impact of Parthenium hysterophorus L., an alien invasive herb on plant species diversity in invaded areas of Queen Elizabeth National Park, Uganda
Parthenium hysterophorus is an alien annual herb that aggressively threatens biodiversity of Queen Elizabeth National Park (QENP) in Uganda. Occurrence, abundance and impact of P. hysterophorus on plant species diversity were examined. An observational inspection survey assessed the occurrence of P. hysterophorus while Quadrats sampled vegetation in P. hysterophorus invaded and uninvaded sites of Mweya Peninsula and...
October 2020
African Journal of Agricultural Research
Gene action analysis studies for agronomic traits in cassava (Manihot esculenta Crantz) genotypes developed using line by tester mating design
Despite the significance of cassava as food, feed and industrial root crop, little is known regarding the gene action determining root dry matter content (RDMC), fresh root yield, and tolerance to cassava mosaic disease (CMD), cassava green mite (CGM), and cassava mealy bug (CMB). Thus, a study was conducted to determine the general and specific combining abilities for disease, pest, RDMC, root yield and related traits...
October 2020
International Journal of Livestock Production
Rabbit production practices in Kiambu County, Kenya
To document current rabbit management practices in Kiambu County, a survey using structured questionnaire was undertaken in 45 farms identified using snow ball sampling technique. Data collected were subjected to descriptive statistics. Findings revealed that the majority of the respondents (57.8%) kept more than 10 does while the most prevalent breed was New Zealand White (82.2%). The main purpose of keeping rabbits...
October 2020
Journal of Economics and International Finance
Macroeconomic volatility of Turkey in comparison with South Africa and developed countries
The purpose of this study is to investigate the business cycle volatility of Turkish economy using the quarterly data over the period 1961:Q1 to 2018:Q4 and to determine the smoothing parameter, λ, of HP filter for annual frequency of observations. The macroeconomic variables such as import, investment and export are more volatile followed by government spending; while consumption and real GDP are less volatile....
October 2020
African Journal of Pharmacy and Pharmacology
Hypoglycemic and antihyperglycemic activities of the aqueous ethanolic extracts of Gymnema sylvestre (RETZ) R. Br. Ex SCHULT and Sclerocarya birrea (A RICH) HOCHST
Gymnema sylvestre (Retz.) R. Br. ex Schult (Asclepiadaceae) and Sclerocarya birrea (A. Rich) Hochst (Anacardiaceae) are two plants used in Burkina Faso in traditional medicine and in the form of phytomedicine in the treatment of diabetes. This study evaluated the effect of aqueous ethanolic extracts of leaves of Gymnema sylvestre and Sclerocarya birrea on glycemia. A phytochemical screening of the extracts obtained by...
October 2020
African Journal of Microbiology Research
Resistance of Candida albicans to antifungal drugs in Abidjan (Cote d’Ivoire)
This study aimed to evaluate the resistance levels of strains of Candida albicans to the antifungals commonly used in Abidjan, Cote d’Ivoire. This is a prospective study that was carried out from July to October 2017 at the mycology laboratory of the Institut Pasteur of Cote d’Ivoire. 105 Candida isolates, obtained from swabs taken from patients receiving out-patient treatment, were seeded on chromogenic...
October 2020
African Journal of Pharmacy and Pharmacology
A review for selecting medicinal plants commonly used for malaria in Uganda
The menace of current cases of parasite resistance to antimalarial drugs, non- availability and accessibility, and the high costs of pharmaceutical products contribute to the high rate of medicinal plants consumption in the treatment of malaria in Uganda. Different ethnobotanical surveys on medicinal plants with antimalarial properties have been conducted across different geographical regions in Uganda in order to...
October 2020
International Journal of Nursing and Midwifery
The prevalence and relevant factors of paternal depression during a partner’s pregnancy in Japan
The aim of this study was to determine the prevalence of paternal depression and the relevant factors associated with paternal depression, mainly focusing on occupational stress. The present study was focused on paternal depression during their partners’ pregnancy as the first part of longitudinal studies. The participants were fathers whose partners were in the third trimester of their pregnancies. Items from the...
October 2020
African Journal of Microbiology Research
Arbuscular mycorrhizal fungi (AMF) promote the growth of the pioneer dune plant of coastal areas
The establishment of economic enterprises and the demand for coastal areas for leisure purposes exert great pressure on the dunes, stripping them of vegetation and causing the aggravation of coastal erosion processes. The use of arbuscular mycorrhizal fungi (AMF) is a viable alternative to restore dunes, giving their ability to improve soil conditions and plant growth under unfavorable conditions. The aim of this study...
October 2020
Journal of Pharmacognosy and Phytotherapy
Phytochemical screening and antimicrobial activities of hydroethanolic extracts from leaves and roots of Cochlospermum planchonii (Bixaceae)
Cochlospermum planchonii is traditionally used in Togo in treating several diseases, including burn wounds which achievement requires anti-infective and good cicatrisation processes. This study aims to evaluate the antimicrobial properties of hydroethanolic extracts from leaves and roots of C. planchonii and its phytochemical composition. Five (05) bacterial strains were suspended in liquid media with plant extracts at...
October 2020
Journal of Geography and Regional Planning
Public open spaces in Crisis: Appraisal and observation from metropolitan Kathmandu, Nepal
There is an emerging debate in the literature of urbanism that public open space is in crisis in the cities of developing countries due to the increasing trends of urbanization and in-migration. With the significant growth of the urban population and rapid expansion of the city, the land demand for housing and other infrastructure development is very high. The high rate of urbanization due to which encroachment, high...
October 2020
Journal of Veterinary Medicine and Animal Health
Antiviral activities of ellagitannins against bovine herpesvirus-1, suid alphaherpesvirus-1 and caprine herpesvirus-1
In vitro antiviral activity of three ellagitannins - castalagin, vescalagin and grandinin was investigated against replication of three of the most common herpes viruses infecting animals, namely bovine herpesvirus-1 (BoHV-1), suid alphaherpesvirus-1 (SuHV-1), and caprine herpesvirus-1 (CapHV-1). The cytopathic effect inhibition test via the neutral red uptake assay in Madin-Darby bovine kidney (MDBK) cell culture was...
October 2020
Educational Research and Reviews
The effect of critical thinking education on the critical thinking skills and the critical thinking dispositions of preservice teachers
The aim of this study is to identify the dispositions and opinions of prospective teachers towards critical thinking and to develop primarily their critical thinking dispositions. Pretest-posttest research design was implemented in this study without a control group. The study group was formed with the purposive sampling method. A total of 57 preservice teachers, of whom 26 were males and 31 were females, volunteered...
October 2020
International Journal of Water Resources and Environmental Engineering
Estimation of Mg, Cd, and Ni levels in urban waterfront using one-dimensional transport model
Accurate quantification of heavy metals is essential for optimizing remedial efforts at polluted waterfronts. Although surface water quality models can be helpful tools for rapid quantification of heavy metals in streams, they cannot be extrapolated to other water bodies. This study estimated Mg, Cd, and Ni levels in one of the polluted urban waterfronts in the Niger Delta Province, Nigeria (5.317°N, 6.467°E)...
October 2020
Journal of Plant Breeding and Crop Science
Assessment of indigenous knowledge associated with Sorghum (Sorghum bicolor L. Moench) seed selection and the seed quality attributes in Fafen Zone of Somali Region, Ethiopia
Understanding agro-pastoralist’s indigenous knowledge associated with sorghum seed selection, seed systems, and seed quality management will help to devise strategies for enhancing the food and feed security in crop-livestock mixed farming system. With this intention, indigenous knowledge practices of on-farm sorghum seed selection and evaluation of the seed quality were surveyed, which ultimately contributes to...
October 2020
International Journal of Physical Sciences
Fof2 prediction with IRI-2016 at Dakar Station during quiet activity over solar cycles 21 and 22
This study deals with comparison between Dakar station ionospheric’s F2 layer critical frequency (foF2) data and the two subroutines (CCIR and URSI) of IRI-2016 model predictions. Comparisons are made for very quiet geomagnetic activity during the four phases of the solar cycles 21 and 22 (minimum, increasing, maximum and decreasing). Model's predictions are suitable with observed data by day than by night....
October 2020
Journal of Development and Agricultural Economics
Determination of socio-economic factors influencing rural household’s decision to raise goat in Sindhuli District, Nepal
Goat (Capra hircus) is one of the important sources of rural economy in Nepal. As various programs are aiming to enhance livelihood of rural denizens through goat promotion, it is therefore crucial to understand socio-economic determinants on decision to raise goats by rural households. So, this study was carried out in two, out of seven, local administrative units (Wards) of Marin rural municipality, Sindhuli using...
October 2020
Journal of Development and Agricultural Economics
Analysis of the technical efficiency of maize producers in the Municipality of Bembèrèkè in the North of Benin
In Benin, maize plays a key role, both in production systems and in commercial transactions and population feeding. Smallholders are facing a decline in productivity due, among other things, to difficulties in accessing agricultural inputs such as improved seeds and fertilizers (NPK and Urea). The project "Sustainable intensification of maize production among small producers in the departments of Alibori and Borgou...
Page 4 of 1202, showing 50 records out of 60100 total, starting on record 151, ending on 200
