Articles
Page 8 of 1189, showing 50 records out of 59446 total, starting on record 351, ending on 400
April 2020
African Journal of Agricultural Research
Initiation of callus from different genotypes of Sorghum bicolor L. Moench
The study aimed to examine three genotypes of sorghum for their response in tissue culture using Murashige and Skoog (MS) medium supplemented with auxins (2,4-dichlorophenoxy acetic acid (2,4-D), naphthalene acetic acid (NAA)) and cytokinins (Kinetin, 6-benzyle amino purine (BAP)) at different concentrations. The cultures were initiated from different explants (seed, embryo and hypocotyl). The response of explants...
April 2020
African Journal of Business Management
The effect of workplace incivility on organizational outcome (mediating role of psychological capital)
The major purpose of this study was to assess the impact of workplace incivility on organizational outcomes as well as the mediating effect of psychological capital on this process particularly in academic organization in Fiji. To accomplish this purpose, personal distribution of 250 questionnaires was given to the teachers. The final response rate from employees was 90% (225/250). The result shows that workplace...
April 2020
Journal of Diabetes and Endocrinology
Antidiabetic properties of Moringa oleifera: A review of the literature
The incidence of diabetes has been growing over the years with serious and costly consequences, both in terms of human and economic capital, particularly in low- and middle-income countries. Medicinal plants could be usefully included in the treatment of diabetes in an optimized strategy for better cost-effectiveness, given the high cost of pharmaceuticals and their side effects on patients. A total of 36 studies...
April 2020
Educational Research and Reviews
Gender differences in achievement, interest and retention of students’ exposed to fabrication and welding engineering craft practice through cognitive apprenticeship instructional technique in Nigeria
The study was a pre-test, post-test, non-equivalent control group quasi-experiment, involving students in intact classes. Three research questions and three hypotheses guided the study. The population and sample for the study consisted of all 64 National Technical Certificate (NTC) II students of fabrication and welding engineering craft practice in Ekiti State. These comprise 53 males and 11 females. The instruments...
April 2020
Journal of Public Health and Epidemiology
Prevalence and risk factors for pre-eclampsia/eclampsia in Northern Tanzania
Pre-eclampsia/Eclampsia has significant impact on maternal and perinatal health. Little is known about prevalence and risk factors for pre-eclampsia/eclampsia in Tanzania. This study aimed to determine prevalence and risk factors for pre-eclampsia/eclampsia among women who delivered at KCMC hospital between 2000 and 2014. Retrospective cross-sectional study was conducted at KCMC medical birth registry....
April 2020
African Journal of Biotechnology
Descriptive sensory evaluation of “gari” produced from fermentation of cassava using some selected Rhizopus species
Two local varieties of cassava (Manihot esculenta crantz) pulps named “okoiyawo” and “odongbo” were fermented with pure Rhizopus oligosporus, R. nigricans and R. oryzae. The products were subsequently processed in to “gari” (a roasted fermented cassava meal), the form in which it is popularly consumed in Nigeria. The selected process variables are cassava varieties, starter culture...
April 2020
Journal of Civil Engineering and Construction Technology
Evaluating mixed reality technology for architectural design and construction layout
Mixed reality (MR) technology has attracted increasing interest in the architecture and construction industry since the commercial availability of head-mounted MR devices in 2016. With its ability of overlaying digital building models in real construction sites, building owners, architects, engineers, and contractors have quickly recognized the value of MR technology in on-site architectural visualization, construction...
April 2020
African Journal of Business Management
Audit quality in non-listed Italian firms
This study investigates the audit quality of Big-x auditing companies within the context of the Italian non-listed firms by examining (i) auditing ability to restrict accrual-based earnings management and (ii) the level of auditing independence. The Italian non-listed firms provide a unique set of auditing environment with multiple layers of audit quality compared to other European auditing environments. Accounting...
April 2020
Journal of Geology and Mining Research
Petrological characteristics of some cretaceous igneous rocks, in Southwest of Gboko, Southern Benue Trough, Nigeria
Detailed field geological mapping, outcrop petrography and thin-section microscopy are employed to delineate and describe igneous rocks, and to infer the tectono-magmatic and geochemical constraints affecting their emplacement in the Tse-Agberagba area, Southwest of Gboko, Southern Benue Trough. Magmatic activity, coupled with folding and deformation were the effects of the Santonian tectonic episode in the area....
April 2020
Journal of Public Health and Epidemiology
A narrative synthesis on COVID-19 risks and concerns in developing countries: The case of Ethiopia
In this review, we addressed risk factors for the spread of COVID-19 in the perspective of developing countries, and necessary measures to be undertaken to minimize or control its consequential crisis. Databases such as MEDLINE, PubMed, EMBASE, CINAHL, Web of Science, Scopus and websites of WHO, CDC, and ECDC were searched for relevant information and a narrative analysis approach was followed. As of April 10, 2020,...
April 2020
African Journal of Microbiology Research
Chemical composition and control of Sclerotium rolfsii Sacc by essential oils
Essential oils of medicinal plants show potential to control phytopathogens. Essential oils of Lippia sidoides Cham, Lippia lasiocalycina Cham, Lippia origanoides Kunth - Teresina, Lippia origanoides Kunth - Jatobá, Mesosphaerum suaveolens (L.) Kuntze, Croton sonderianus Muell. Arg. And Croton zehntneri Pax et Hoffm. were evaluated regarding their chemical composition and in controlling the Sclerotium...
April 2020
African Journal of Microbiology Research
Formulation and pathogenicity of a bioherbicide for wild poinsettia control
Adequate formulation of bioproducts represents one of the most challenging aspects of bioproduct development. The incorporation of adjuvants with bioagents can positively influence product development. However, it is indispensable to evaluate the sensitivity of bioagents to these adjuvants. The aim of this study was to determine the toxicity of seven adjuvants at different concentrations to Bipolaris yamadae (Bipolaris...
April 2020
Educational Research and Reviews
Investigation of primary school teachers’ opinion about revised 3rd grade science curriculum in Turkey
One of the aims of science curriculum is to understand technology that is used in all areas of daily life. Thus, science curriculum should be revised in a feasible and dynamic manner for the quality. The purpose of the study is to investigate primary school teachers’ opinions about renewed 3rd grade science curriculum. The sample of the study consisted of 160 4th grade primary school teachers working in public...
April 2020
African Journal of Food Science
Variability of nutrients in Parkia biglobosa kernels from three geographical regions in Burkina Faso
This study aimed to determine the nutritional composition of the kernels of the African locust bean, Parkia biglobosa, collected in three populations (Louda, Nobéré and Péni) representative of different environmental conditions, from more arid in the northern population (Louda) to wetter in the most southern population (Péni). Biochemical analyses were carried out using standard methods....
April 2020
International Journal of Biodiversity and Conservation
Assessment of impact of ecological elevation on grass species’ diversity in Yabello Rangeland, Southern Ethiopia
Elevation has great impact on species’ diversity; it creates ecologically diverse vegetation. Studying species’ richness patterns at different scales is very important both for ecological explanations and effective conservation design. In this study, grass vegetation data were collected using systematic sampling methods. 18 transects and 54 quadrants were laid, with 6 transects and 18 quadrants from each...
April 2020
African Journal of Business Management
The efficiency implications of corporate
earnings retentions
The study examines the efficiency of the investment of corporate income retention. If retained earnings are invested in positive net present value projects, they should enhance the shareholder value in the long run. It is believed that the stock market adds premium to a firm’s earnings when the firm signals more retention of earnings. However, the stock market is seen to reverse the discipline when such retained...
April 2020
Journal of Languages and Culture
Looking at Chinese parent-teenager conflict talks from the perspective of the rapport management theory
As a common but complex linguistic phenomenon, conflict talks (CTs) frequently occur in daily communications. This study aims to carry out analyses of parent-teenager CTs in two Chinese TV series A Love for Separation and Home with Kids to reveal the three steps of CTs. From the perspective of the rapport management theory, this study mainly centers on probing into the causes as well as the influence on harmonious...
April 2020
African Journal of Microbiology Research
Chemical composition and in-vitro antimicrobial activity of essential oil of African nutmeg (Monodora myristica (Gaertn) Dunal on microorganisms isolated from smoke-dried catfish (Clarias gariepinus)
Dried seeds of Monodora myristica were obtained from Oba market in Edo State, ground into fine powder and stored in an air tight plastic container at room temperature until when used. Essential oils were extracted using steam distillation and characterised using the gas chromatography-mass spectroscopy (GC-MS) technique. Microbial isolates obtained from smoke dried fish samples purchased from Oba Market, Benin City, Edo...
April 2020
African Journal of Plant Science
Effects of chemical fertilizer types and rates on tuber yield and quality of potato (Solanum tuberosum L.) at Assosa, Western Ethiopia
Potato tuber yield and quality is constrained by a number of biotic and abiotic factors, among which low soil fertility is the prime one. Thus, the objective of the study was to evaluate the effects of chemical fertilizer types and rates on tuber yield and quality of potato at Assosa, Western Ethiopia. The treatments consisted of control, three rates of NP combinations (55 kg N and 45 kg P2O5, 110 kg N and 90 kg P2O5,...
April 2020
International Journal of Sociology and Anthropology
Knowledge and perceptions of female genital mutilation among African immigrant women in Windsor, Canada
The objective of this is to investigate African immigrant women’s perceptions of female genital mutilation (FGM) within the Canadian Criminal Code. Ten African immigrant women resident in Windsor, Canada were selected using snowball sampling for interviews. These women were of four African nationalities, namely Nigeria, Ghana, Somalia and Sudan. Semi-structured interview protocol with open answer possibilities...
April 2020
African Journal of Environmental Science and Technology
Factors affecting the development of effective water resource management policies: The case of the management of Lake Victoria Basin in Uganda
Partial least square-structural equation modelling (PLS-SEM) was used to evaluate the factors affecting the development of effective water resource management policies. Researchers employed a purposive sampling method to come up with the most suitable respondents. The sample size of 152 respondents was computed from a population size of 245 water experts within Lake Victoria Basin (LVB) in Uganda. The...
April 2020
African Journal of Food Science
Effect of the incorporation of graded levels of turmeric (Curcuma longa) on different qualities of stirred yoghurt
There is an increasing trend in yoghurt consumption due to the health benefits from the gut bacteria present in yoghurt. However, there is need to evaluate other inexpensive nutrient sources such as spices (turmeric) which contain a lot of phytochemicals to make yoghurt more nutritious. Fresh turmeric rhizome was sorted, washed, peeled and milled. Ethanol was added to obtain turmeric extract. The turmeric extract was...
April 2020
African Journal of Plant Science
Genetic divergence analyses of lowland rice genotypes in North Western Ethiopia
Information on the nature and magnitude of genetic variability is one of the prerequisites for a successful breeding program in selecting genotypes with desirable characters. To estimate the level of genetic divergence of lowland rice genotypes, a field experiment was conducted using thirty-six genotypes during 2017 main cropping season. The experiment was laid out 6x6 simple lattice design. Analyses of variances showed...
April 2020
International Journal of Biodiversity and Conservation
Polymorphism of Cyclops abyssorum mauritaniae (Copepoda, Cyclopoidae) collected from Algeria water bodies
Three morphotypes A, B and C were isolated after description of Cyclops abyssorum mauritaniae populations obtained from 46 Algerian water bodies. These are described based on their morphometric characters. Morphotype A found in six localities characterized the east of Algeria, morphotype B was collected in the west of Algeria, while morphotype C was collected in High Mountain in the North. After dissection of certain...
April 2020
International Journal of Sociology and Anthropology
Challenges faced by the Bhotias for their livelihood and preservation of culture
We frequently hear about the significance of cultural heritage. And while discussing humanitarian efforts, we might hear the phrase "cultural preservation." The term encompasses several activities surrounding maintaining ancient cultures from large nations all the way down to small indigenous tribes. However, the meaning of cultural heritage and its preservation needs to be ascertained. Heritage is an asset,...
April 2020
International Journal of Psychology and Counselling
Attitude of young adults towards online advertising
In the 21st Century Internet advertising is seen as important medium in reaching out to consumers. Internet users are increasing around the world as almost all the transactions can be done through online. Thus, online advertisers need to understand the peoples’ attitude towards online advertising in order to create effective online advertising. The main aim of this research is to study young adults’ attitude...
April 2020
International Journal of Biodiversity and Conservation
Poor regeneration of Brown Oak (Quercus semecarpifolia Sm.) in high altitudes: A case study from Tungnath, Western Himalaya
This study was carried out in the timberline zone of Tungnath, Chopta region of the Chamoli District in India at eight altitudinal zones from 2,500 to 3,200 m, where the regeneration of Brown Oak was found to be very low. The data were obtained during the rainy season (August-September, 2016) by making counts of mature trees, saplings and seedlings in survey plots (50 × 50 m) at each of the eight altitudes. The...
April 2020
International Journal of Biodiversity and Conservation
An appraisal of ecotourism's impact on biodiversity conservation: The case of Campo Ma'an National Park, Cameroon
Ecotourism is often perceived as a strategy for sustainable biodiversity conservation for protected areas. In Cameroon, there is dearth of information on the impacts of ecotourism on biodiversity conservation of protected areas. The main thrust of this study is to examine local population's perceptions of the impact of ecotourism on biodiversity conservation in and around the Campo Ma'an National Park (CMNP)....
April 2020
International Journal of Psychology and Counselling
Reunification therapy versus family integration therapy: A problem of taxonomy
Family courts increasingly order psychotherapy to resolve issues of alienation and estrangement between parents and children. Reunification therapy is a clinical intervention and treatment application intended to unite estranged children and parents. Reunification therapy when used in the legal context implies that a cohesive family unit existed prior to the estrangement. Literature supports the implementation of...
April 2020
Journal of Languages and Culture
The role of the ancient Egyptians' beliefs in the afterlife in preserving the ancient Egyptian cultural heritage
The ancient Egyptians preserved their tangible cultural heritage through their burial rituals. The scientific study of the material-objects found in the Egyptian tombs helped researchers to excavate, preserve, study and attempt to interpret the Egyptian cultures. Contemporary Africans do not or they rarely bury their dead with many items as the ancient Egyptians did. This research compares the reasons for the Egyptian...
April 2020
Journal of Economics and International Finance
Estimating the Marshall-Lerner condition of China
The US labeled China a Currency Manipulator in August 2019 because of the massive trade balance surplus of China. The correlation between RMB’s exchange rate and China’s trade balance has been discussed worldwide. The Traditional Marshal-Lerner Condition states if the sum of the absolute value of export and import price elasticity of demand is more than 1, the trade balance will be adjusted through the...
April 2020
Journal of Economics and International Finance
Unconditional convergence of Chinese provinces (1952-2017): Some statistical analysis results
This research tests the economic convergence hypothesis of 31 inland Chinese provinces over the period from 1952 to 2017. Regression and descriptive analysis methods are adopted to study the economic convergence among these Chinese provinces in terms of GDP growth and per-capita GDP growth. The research results show that GDP growth does not exhibit a tendency of convergence, rejecting the absolute convergence hypothesis...
April 2020
Journal of Economics and International Finance
The determinants of credit demand among farmers in Hurungwe District of Mashonal and West Province in Zimbabwe
Bank credit availability in the agricultural sector empowers farmers to adopt modern technologies and inputs that are vital for breaking poverty in developing economies like Zimbabwe. This study sought to establish the determinants of credit demand among farmers in Hurungwe District of Mashonaland West Province in Zimbabwe. A questionnaire survey was conducted on a sample of 354 farmers selected by stratified random...
March 2020
African Journal of Agricultural Research
Selection efficiency of yield based drought tolerance indices to identify superior sorghum [Sorghum bicolor (L.) Moench] genotypes under two-contrasting environments
Drought is the most significant environmental calamity on sorghum in Ethiopia and hence improving yield under drought is a major goal of plant breeding. This study was designed to introgress drought tolerant genes into adapted varieties through marker-assisted backcrossing and select based on tolerance indices. Sixty-one backcrossed lines and along with their nine parental lines were evaluated under full-irrigation and...
March 2020
Journal of Parasitology and Vector Biology
Assessment of the performance of malaria rapid diagnostic test in acutely malnourished children under five years of age in Nanoro - Burkina Faso
The interaction of malaria with malnutrition is complex. In areas where malnutrition among children is prevalent, management of malaria is not standardized. In Burkina Faso, malaria treatment is prescribed after positive malaria rapid diagnostic test (RDT) or thick blood smears confirmation regardless of the nutritional status of the child. The study aims to assess the performance of malaria RDT in acute malnourished...
March 2020
Journal of Soil Science and Environmental Management
Soil moisture retention and rainfed wheat yield variations by the addition of gypsum and green manure
In rainfed tract, the success of agriculture depends on conservation and efficient use of soil moisture and nutrients availability that directly linked with the presence of moisture in soil. The moisture can be conserved through several means including green manures and gypsum addition. The experiment was conducted to investigate the integrated effect of green manures and gypsum for moisture conservation and their...
March 2020
Journal of Ecology and The Natural Environment
Minerology, geochemical composition and geotechnical properties of termite mound soil
Termitarian, the epigeal biogenic structure constructed by termites are widespread in the forest and derived savannah regions of Nigeria. Soil modification, with particular focus on the mineralogy, variation in geochemical composition and geotechnical properties of termite mound soil samples collected from nine location in the Ika area, Delta State of Nigeria are the objectives of this report. The major elements...
March 2020
African Journal of Political Science and International Relations
The impact of China on the agency and negotiating power of African countries: Cases of Angola and Niger
The recent surge in cooperation between China and African countries challenges the western aid model thus giving African countries a better leverage and negotiating power in their relation with the west. It is obvious that the Chinese presence in Africa is motivated by its economic and energy security agenda, which consist in securing natural resources to ensure security of supply and demand in its domestic market. This...
March 2020
International Journal of Physical Sciences
Solar events and seasonal variation of foF2 at Korhogo station from 1992 to 2002
In this paper we report the effect of solar events (CMEs and solar winds) on foF2 diurnal profiles at Korhogo Station (Long 8.427° W; Lat: 9.336° N; dip: -1.88°) from 1992 to 2002. We reviewed on seasons and all the four geomagnetic activity classes (Quiet activity, recurrent activity, Shock activity, and Fluctuating activity). The results show that (1) Coronal Mass Ejections (CMEs) and high-speed solar...
March 2020
International Journal of Physical Sciences
Performance assessment of cross polarization models at millimetre wavelengths along Earth–Space path
in Nigeria
Rain-induced depolarization impairments have been a constraint on the effective use of satellite communication systems at millimetre wave band especially in the tropical regions like Nigeria. This region often experiences high and varying degree of rainfall intensity accompanied with large raindrops due to distortion of raindrops when dual orthogonal polarization is employed to double the channel capacity without...
March 2020
Journal of Public Health and Epidemiology
Quality of life of HIV patients on highly active antiretroviral therapy: A scoping review
Human immunodeficiency virus (HIV) infection is one of the life-threatening conditions that affect various domains of patients’ life. The quality of life (QoL) of HIV patients has emerged as a major public health concern. People living with HIV (PLHIV) experience numerous problems that range from discrimination, changes in the patterns of relationships (intimacy), loss of social status, role, jobs and financial...
March 2020
Journal of Medicinal Plants Research
Antimicrobial activity and acetilcolinesterase inhibition of oils and Amazon fruit extracts
The present work consists of the evaluation of antimicrobial activity and inhibition of the enzyme acetylcholinesterase (AChE) of fixed oils and hexane extracts of nine fruits with the following native names: abiu (Pouteria caimito), acerola (Malpighia emarginata), araçá (Psidium cattleianum), bacuparí (Rheedia gardneriana), biribá (Rollinia mucosa), camu-camu (Myrciaria dubia),...
March 2020
African Journal of Microbiology Research
Microbial load of indoor airborne bacteria and fungi in a teaching hospital in Ghana
The hospital, even though a place for the sick people, is inhabited by medical staff, administrative, security and patients who may share common microbes in the hospital environment. Some of these organisms may be pathogenic and may pose health hazard to humans through inhalation in the hospital atmosphere. Hence, the objective of this study was to investigate the microbial load of airborne microorganisms in some...
March 2020
African Journal of Biotechnology
Evaluation of the physical properties of leathers tanned with Plectranthus barbatus Andrews extracts
This study was designed to assess the potential use of Plectranthus barbatus Andrews, a plant growing locally in Kenya as a vegetable tanning agent. The aim was a deliberate attempt to adopt green chemistry and provide cheap locally available eco-friendly tanning materials. Anova statistical test (α<0.05) was used to compare the physical properties of leather tanned with three kinds of liquors made from the...
March 2020
Journal of Ecology and The Natural Environment
The role of logged timber stump sprouting in natural forest regeneration in the Akak forest area of Cameroon
Natural forest regeneration is the renewal of a forest crop by self-sown seed or by sprouting of stumps. However, there have been few studies on sprouting in the Cameroon tropical rainforest. The main objectives of this study were to examine the influence of stump sprouting of timber species in natural forest regeneration in the Akak forest area in Cameroon. In this study, stumps were located in forest compartments...
March 2020
African Journal of Agricultural Research
Interaction effect between Meloidogyne incognita and Fusarium oxysporum f.sp. lycopersici on selected tomato (Solanum lycopersicum L.) genotypes
Development of diseases in cultivated crops depends on the complex inter-relationship between host, pathogen and prevailing environmental conditions. The significant role of nematodes in the development of nematode–fungus interaction is demonstrated in many crops throughout the world. However, there is scanty research information in Ethiopia. Therefore, the main objectives of this study were to: (i) investigate...
March 2020
African Journal of Agricultural Research
Effective policies to mitigate food waste in Qatar
This paper highlighted food waste as one of the biggest threats to food security that put pressure on the natural resources and limit the ecological capacity of land of Qatar to continue providing renewable resources. Climate change, desertification of farmland, water shortages, soil degradation and arable land per capita decline are the main characteristics of the state of Qatar. This arid and semi-arid environment...
March 2020
African Journal of Agricultural Research
Technical efficiency and its determinants in sugarcane production among smallholder sugarcane farmers in Malava sub-county, Kenya
The aim of the study was to determine the farm level technical efficiency and its determinants among smallholder sugarcane farmers in Malava Sub-county, Western Kenya. Primary data were collected using questionnaires from a sample of 384 farmers through systematic random sampling. The study applied stochastic frontier analysis and Tobit regression analysis using computer software STATA. The results found that...
March 2020
African Journal of Agricultural Research
Production of banana bunchy top virus (BBTV)-free plantain plants by in vitro culture
Banana Bunchy Top Disease (BBTD) caused by the Banana Bunchy Top Virus (BBTV) is one of the most important banana diseases in the Democratic Republic of Congo. This study focused on the production of BBTV-free plantain seedlings from infected banana plants. A total of 10 suckers from the French plantain Litete (Musa AAB) and the False Horn plantain Libanga Likale (Musa AAB) with advanced BBTD symptoms were collected....
March 2020
African Journal of Agricultural Research
Influence of supplementary hoe weeding on the efficacy of ButaForce for lowland rice (Oryza sativa L.) weed management
Field experiments to determine the influence of supplementary hoe weeding on the efficacy of ButaForce (N-(butoxymethyl)-2-chloro-N-2,6-dimethyl acetanilide) for low land rice (Oryza sativa L.) weed management was conducted at the Faculty of Agriculture Teaching and Research Farm of the University of Port Harcourt during the early cropping seasons of 2018 and 2019. Seven treatments were used for the experiment...
Page 8 of 1189, showing 50 records out of 59446 total, starting on record 351, ending on 400
