Articles
Page 4 of 1189, showing 50 records out of 59446 total, starting on record 151, ending on 200
June 2020
African Journal of Plant Science
Combining ability of maize inbred lines (Zea mays L.) for yields in mid altitude sub-humid Agroecology of Ethiopia
Maize is an important staple food for most Ethiopians, but the national average productivity of maize is below that of the world. Development and cultivation of high yielding maize hybrids can improve maize productivity and production. Having information on combining ability and heterosis of maize inbred lines is important for the development of high yielding maize hybrids. The objectives of this study were to identify...
June 2020
Educational Research and Reviews
Empathy trend of student-athletes in Turkey: Ardahan example
The aim of the study is to analyze empathy tendencies among students who are involved in sporting activities at Ardahan Province. In accordance with this aim, this study has been conducted through the survey modelling of quantitative research methods. For the data analysis, T-Testing and ANOVA were applied. According to the obtained findings, it is detected that there is a significant difference in the ability of...
June 2020
African Journal of Biotechnology
Cytotoxic effects of some essential oils on Mcf-7, Hfs and Hct116 cell lines
This study investigates the chemical composition and cytotoxic effects of three essential oils of rosemary, lemon and orange, as well as its effects on breast cancer (MCF-7), human foreskin fibroblasts (HFS) and colorectal carcinoma (HCT116) using gas chromatography-mass spectrometry (GC-MS) methods, leading to identification of a different compound by GC-MS. Eicosapentaenoic acid (13.79%) and heptatriacotanol (13.79%)...
June 2020
African Journal of Plant Science
Antibacterial activity of endophytic fungi isolated from mangroves of Jaffna Peninsula, Sri Lanka
Mangroves are plant communities growing in the intertidal zone of tropical to subtropical coastal rivers. Some endophytic fungi which live in the tissues of mangrove plants produce some biologically active substances. By screening these biologically active substances some researchers have found that these substances have antimicrobial activity. This research is aimed to determine the antibacterial activity of endophytic...
June 2020
African Journal of Environmental Science and Technology
Molecular characterisation of bacteria strains of septic tank sewage samples from related sites in Delta and Edo States of Nigeria using 16S rRNA denaturing gradient gel electrophoresis (DGGE)
The molecular characterization of raw septic tank sewage in the region under study was evaluated using 16S rRNA denaturing gradient gel electrophoresis (DGGE). Raw effluent samples from three septic tanks in the Delta and Edo States region of Nigeria was collected between November 2018 and January 2019 for testing. A composite sample was formed from the three samples collected. The raw sewage sample was sequenced for...
June 2020
African Journal of Agricultural Research
Gender differences in agri-marketing farmer organizations in Uganda and Malawi: Implications for R4D delivery mechanisms
Although farmer organizations are acknowledged to link their members to markets, enhance their business skills and enable access to services, there is need for evidence that ascertains if all members benefit equitably. This paper examines benefit distribution and sources of gender differences in mixed-sex collective marketing farmer organizations in Uganda and Malawi. Through a cross-sectional survey, key informant...
June 2020
African Journal of Agricultural Research
Response of wild smooth-head catfish (Clarias liocephalus) fingerlings reared in earthen ponds
Clarias liocephalus, an important small fish in the diet of rural households, is threatened by wetland degradation and overfishing for use as live bait. This study aimed at establishing the survival, condition, growth rate and feed utilization indices of C. liocephalus wild fingerlings reared outside the wetland environment through a feeding experiment. Fingerlings were fed with an isocaloric feed with four levels of...
June 2020
Educational Research and Reviews
Evaluation of attainments in 2018 Life Sciences curriculum based on the views of primary school teachers
Life Science is a course that has been taught since the beginning of the first years of Turkish Republic. Life Science curriculum was revised in 1924, 1936, 1948, 1968 and 1998, 2004, 2009, 2015, 2017 and 2018. When the structure of 2018 Life Sciences curriculum is examined, it is seen that the curriculum is composed of general aims, values, basic survival skills, concepts, units and attainments. In Life Sciences...
June 2020
International Journal of Library and Information Science
Effect of literature in the school library on the development of communication and conflict resolution skills of children
This study was done with private primary schools children in Orerokpe Educational Zone of Delta State, Nigeria in 2018. A quasi experimental design was adopted. Two research questions and two hypotheses guided the study. The population of the study was 28,172. The sample comprised 63 primary four pupils. Purposive and cluster sampling techniques were used to sample 32 pupils in the experimental group one and thirty-one...
June 2020
Educational Research and Reviews
Scale of vocabulary learning strategies for learners of Turkish as a foreign language: A scale development study
It does not seem to be possible to teach all the words needed by learners of Turkish as a foreign language in the target language just through classroom applications. Thus, students should be taught vocabulary learning strategies that will contribute to their independent learning and raise their awareness of vocabulary learning processes. In this regard, the purpose of the current study is to develop a scale to...
June 2020
African Journal of Food Science
Variety and baking effects on injera making quality, polyphenols content and antioxidant activity of millet flours and injera
Injera or Biddena commonly made from tef (Eragrostis tef (Zucc) Trotter) grain and a combination with other grains is a staple food of Ethiopian and neighboring countries. Millet and millet-based food products are rich in polyphenols and antioxidant activities and even so there is limited information. This study aimed to evaluate millet varieties for their injera making quality and polyphenol antioxidant activity. Five...
June 2020
Educational Research and Reviews
The use of contingency contracting in educational settings: A review of the literature
Respecting individual differences among students and meeting their unique needs may be one of the greatest challenges faced by teachers. When having a heterogeneous group of students, teachers need to consider a variety of instructional methods. The literature details a large number of teaching strategies supported by research findings, and the purpose of this review is to add to the literature by highlighting important...
June 2020
Educational Research and Reviews
Field specific competencies for French language teachers in Turkey: A model proposal
The Republic of Turkey’s Ministry of National Education has long been working on the general professional and field specific competencies for teachers in Turkey in collaboration with universities. As a result of these efforts, the “General Competencies for Teaching Profession” was prepared in 2006. Later in 2008, the field specific competencies that teachers should have in their respective fields were...
June 2020
African Journal of Food Science
Hydrocolloids as beers foam stabilizer
Beer foam is one of the most important parameters for consumers, affecting their purchase decision and satisfaction. Studies indicate that foam stability is positively influenced by its viscosity, and based on this fact the brewing industry uses propylene glycol alginate (PGA) as a stabilizer. However, PGA has its use restricted by Brazilian legislation to 0.07 g/L of beer. The objective of this research was to present...
June 2020
African Journal of Bacteriology Research
Next generation sequencing platforms for potato virus hunting, surveillance and discovery
Potato (Solanum tuberosum L.) is a key alternative to maize crop in Kenya. However, pests and diseases affect the yields. Information on Irish potato virology is continually patchy. Viral disease dynamics require constant updating to track new and novel agents. Efforts to mitigate viruses and crop breeding for tolerance can be determined this way. In Kenya, key potato viruses include: Potato Leaf Roll Virus (PLRV),...
June 2020
African Journal of Environmental Science and Technology
Physicochemical influence on the spatial distribution of faecal bacteria and polychaetes in the Densu Estuary, Ghana
Coastal ecosystems are increasingly impacted by man-made disturbances including pollution from agriculture, aquaculture and municipal waste. This study employed multiple ecological indicators to assess environmental quality of the Densu Estuary and understanding of environmental controls on the spatial distribution of organisms. Physicochemical parameters were measured in situ. Water and sediment samples were collected...
June 2020
African Journal of Environmental Science and Technology
Quantifying forest cover at Mount Kenya: Use of Sentinel-2 for a discrimination of tropical tree composites
The aim of the present study is to test ESA’s Sentinel-2 (S2) satellites (S2A and S2B) for an efficient quantification of land cover (LC) and forest compositions in a tropical environment southwest of Mount Kenya. Furthermore, outcome of the research is used to validate ESA’s S2 prototype LC 20 m map of Africa that was produced in 2016. A decision tree that is based on significant altitudinal ranges was used...
June 2020
Journal of Accounting and Taxation
Role and contribution of administrative accounting to small and very small businesses
The aim of this work is to study the main factors that influence the collaboration between the firm and a cost specialist. The paper highlights key aspects of administrative accountings activities performed by Small and medium enterprises (SMEs) and factors that differentiate them due to their nature and small size. Empirical research was conducted through questionnaires to Greek small and micro (very small)...
May 2020
Journal of Soil Science and Environmental Management
Economic importance of termites and integrated soil and water conservation for the rehabilitation of termite-degraded lands and termite management in Ethiopia
In Ethiopia, termites pose serious threat to a variety of agricultural crops, forestry, rangelands, houses and other wooden structures. Termite problem is particularly prevalent in the western part of the country, where it has persisted for many years and has received wide publicity. Termites appeared in the region for the first time in 1904 at a specific place called Bafano Koreche around Kiltu Kara town in West...
May 2020
Journal of Medicinal Plants Research
Anti-nociceptive effects of the hydroethanolic extract of Alysicarpus ovalifolius in rodents
Alysicarpus ovalifolius commonly known as gadagi in Northern Nigeria is claimed to possess tonic effects. Substances that show stimulant properties have demonstrated analgesic effects. This study therefore aimed at investigating the anti-nociceptive effects of the hydroethanolic extract of A. ovalifolius (HEAo) in mice and rats. The activities of the extract on acetic acid induced abdominal writhing, formalin induced...
May 2020
Journal of Medicinal Plants Research
Elemental contents of some medicinal plants using energy dispersive x-ray fluorescence (EDXRF)
The presence of some elements in ten plants with anti-microbial potency was analysed using x-ray fluorescence technique. The results showed there were nineteen elements in these plants. They all contain Pb, a toxic heavy metal, except one that contains As. K, S, Ca, Fe, Zn, Cu, Co, Ni, Mn and Se elements were identified and their anti-microbial properties were discussed. Key words: Energy dispersive x-ray...
May 2020
Journal of Medicinal Plants Research
Chemical composition and bioactivity of essential oil from Morinda citrifolia L. fruit
Morinda citrifolia has aroused the interest of several research institutions due to its pharmacological properties. The compounds biosynthesized can be explored as an alternative for control measures of plant pathogens causing leaf lesions in maize. The study aim at evaluating the potential effects of essential oil obtained from ripe fruits of M. citrifolia on Bipolaris maydis and Exserohilum turcicum isolated from...
May 2020
Journal of Medicinal Plants Research
Healing and topical anti-inflammatory activities of the total aqueous bark extract of Combretum glutinosum Perr. (Combretaceae)
Combretum glutinosum Perrot. Ex DCs (Combretaceae) is a plant used in Senegalese traditional medicine. Its trunk barks are used to treat burns and wounds. The objective of this study was to evaluate the healing effect and topical antiinflammatory activity of the aqueous bark extract of C. glutinosum in second degree burn and croton oil induced ear edema in mice. Phytochemically, the aqueous bark extract of C. glutinosum...
May 2020
Journal of Medicinal Plants Research
In vitro cytotoxic and anti-herpesvirus properties of jackfruit (Artocarpus heterophyllus Lam., Moraceae) leaf extracts
The jackfruit tree (Artocarpus heterophyllus Lam.) is considered one of the most versatile trees and is used from wood production to traditional medicine. In traditional medicine, leaves are used to treat asthma, wounds and abscesses, and prevent ringworm infection. Several biological activities have been documented for jackfruit extracts confirming its popular use; however, its in vitro cytotoxicity and...
May 2020
African Journal of Agricultural Research
Potential causes of postharvest losses, low-cost cooling technology for fresh produce farmers in Sub-Sahara Africa
The aim of this review was to identify the causes of postharvest losses (PHL) in fruit and vegetables in relation to small-scale farming in sub-Saharan Africa (SSA). The reduction of PHL can improve food security at household level. Farmers involved in small-scale production of fresh produce experience high PHL due to physiological deterioration associated with technical, biological and environmental factors and lack...
May 2020
African Journal of Agricultural Research
Risk assessment of the economic efficiency of rubber production: Case of smallholder rubber production in QuangBinh Province, Vietnam
The paper reviews the economic risk of rubber production due to fluctuations of input factors, product price, natural disasters, epidemics, interest rates, and market demand. The data collected in this work were analyzed with accounting of production costs methods and accounting results and production efficiency method, benefit-cost analysis, sensitivity analysis and scenario analysis. QuangBinh, a province in Vietnam...
May 2020
African Journal of Agricultural Research
Nitrogen value of stockpiled cattle manure for crop production
Cattle manure is a common source of fertilizer throughout Sub-Saharan Africa given problems with supply and pricing of inorganic fertilizers. The optimum rate of manure to use is often unknown and further compounded by variable N contents arising from long periods of stockpiling. This study investigated the rates of cattle manure required to optimize plant growth at different N contents arising from different storage...
May 2020
African Journal of Agricultural Research
Role of farmers’ organizations (FOs) in the strengthening of the technical and organizational capacities of farmers in Mezam Division of the North West Region of Cameroon
This study was carried out from January 2018 to March 2019 in Mezam Division of the North West Region of Cameroon on the role of farmers organization (FOs) in the strengthening of the technical and organizational capacities of farmers, particularly the case of the Program for the Improvement of Competiveness of Family Agro-pastoral Farms (PCP-ACEFA) and the North West Farmers’ Organization (NOWEFOR). The objective...
May 2020
Journal of Medicinal Plants Research
DPPH radical scavenging activity of extracts from Urtica urens (Urticaceae)
In this study, hexane, chloroform, ethyl acetate and methanolic extracts from leaves, stem-bark and root of Urtica urens were evaluated for their antioxidant activity by 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging assay. The hexane, chloroform, ethyl acetate and methanolic extracts from leaves of U. urens showed scavenging activity ranging from 7.06±2.52 to 26.01±1.84, 10.86±1.81 to...
May 2020
International Journal of English and Literature
Hesitancy as an innate flaw in Hamlet's character: Reading through a psychoanalytic lens
This paper concentrated on hesitancy as a character's flaw from the Freudian psychoanalysis focal point. Hamlet's uncertainty is especially identified with his natural complex which frames his oblivious love for his mom and his lethal abhor for his dad. Freud's ideas of man's concealed want for annihilation and eradication may shape the reason for understanding Hamlet's craving for death and suicide...
May 2020
Journal of Pharmacognosy and Phytotherapy
Hypoglycaemic activity of preheated (roasting) Aframomum citratum (C. Pereira) K. Schum and Tetrapleura tetraptera (Schumach & Thonn.) fruits beverage on Streptozotocin-induced rats
Tetrapleura tetraptera and Aframomum citratum fruits are used as spices and in the traditional pharmacopeia in Cameroon. They are mostly combined and preheated for many purposes while cooking. The effects of roasting on the phenolic content of spices, phenolic profile of a beverage made with the mix of roasted spices and its hypoglycaemic activity on diabetes complications were investigated. Aqueous extract (infusion:...
May 2020
Journal of Diabetes and Endocrinology
Usefulness of urinary fibronectin and laminin as biomarkers of glomerular injury in diabetics in Port Harcourt, Nigeria
About one-third of diabetes mellitus (DM) patients are complicated by diabetic nephropathy. It is even more challenging in type 2 DM in which this complication may occur before presentation. Microalbuminuria which is the traditional marker of early diabetic nephropathy is limited in its usefulness because it is detected when significant renal damage has already occurred. The aim of this study was to evaluate and compare...
May 2020
African Journal of Agricultural Research
Evaluation of maize (Zea mays L.) performance under minimum and conventional tillage practice in two distinct agroecological zones of Uganda
Maize is one of the major staple foods in Uganda, providing over 40% of Uganda’s daily calorie consumption. Tillage practice is one of the crucial factors that influence crop productivity through maintenance of soil health. The aim of this study therefore is to validate the effect of tillage practice on the vegetative growth and yield of maize in Uganda. The trial was established on-station at Ngetta Zonal...
May 2020
Journal of Development and Agricultural Economics
Technical efficiency of rice farmers in Anambra State value chain development programme
The study is aimed at determining the technical efficiency of rice farmers in Anambra State value chain development programme. A well-structured questionnaire was administered to elicit information from 372 rice farmers from the five participating Local Government Areas (Ayamelum, Awka North, Anambra West, Anambra East, and Orumba North) after which only 337 respondents were fit for the study. Cobb Douglas stochastic...
May 2020
Journal of Horticulture and Forestry
Evaluation of forest litter mineralization capacity on the growth of Irvingia gabonensis in Ogwashi-Uku Forest Reserve, Delta State, Nigeria
The study evaluated litter production capacity of three forest plantation foliage litters as potential mineralization sources for the growth of Irvingiaga bonensis. Litter production capacity of Bamboo, Teak and Gmelina forest plantations was monitored for 70 days before Irvingia seeds were sown in open germination beds containing litters soil samples for vegetative development assessment. Data collected were analyzed...
May 2020
African Journal of Oral Health Sciences
Pregnancy epulis: Case series among pregnant women in Kaduna, Northern Nigeria
The aim of this work is to report the clinical presentation and management of pregnancy epulis (PE) among pregnant women that attended ante-natal clinic in Barau Dikko Teaching Hospital, Kaduna, Northern, Nigeria. Three hundred and twenty self-administered, structured questionnaires were administered to pregnant women that attended ante-natal clinic in Barau Dikko Teaching Hospital, Kaduna. Intraoral examination was...
May 2020
African Journal of Pharmacy and Pharmacology
Chemical characterization of seeds of Amazon fruits as nutritional contribution with functional medicinal potential
The fruit seeds of the Northern Amazon Region were evaluated bromatologically and nutritionally in terms of the level of macro- and micro-elements and fatty acids present in them. Bromatologically, the seeds of camu-camu (369.08 kcal 100 g-1) and biribá (364.78 kcal 100 g-1) have the highest energy value. In terms of the macroelements, the highest concentration was potassium (554.23 mg 100 g-1) seen in graviola,...
May 2020
African Journal of Pure and Applied Chemistry
Evaluation of kinetics and equilibrium studies of biosorption potentials of bamboo stem biomass for removal of Lead (II) and Cadmium (II) ions from aqueous solution
The discharged of lead and cadmium above maximum permissible limits into surface water and environment without any pre-treatment methods has caused severe heath challenges to humanity. In other to minimize the reoccurrence, this research aim to ascertain biosorption capacity of bamboo stem biomass to remove lead and cadmium from aqueous solution. Batch experiment and data evaluation under optimum removal conditions...
May 2020
African Journal of Biochemistry Research
Vitellaria paradoxa fruit pulp bioethanol production potential: A review
In the last decade, bioethanol has become a powerful biofuel for the improvement of environmental pollution such as reduction in greenhouse gas levels. Yet, the source and type of substrate material plays a crucial role in the bioethanol production process due to the different compositional characteristics and availability of monomeric sugars. Different substrates of first, second and third generation fuel sources exist...
May 2020
African Journal of Biochemistry Research
Evaluationof in vivo toxicity of rice husk used as fuel for cooking in households
This study meant to assess the toxicological impact of nourishment cooked or water overflowed with a fan-helped top-lit-updraft rice husk fuelled gasifier stove named Paul Olivier 150 (PO150). Refined water was bubbled for 1 h utilizing this stove in an opened pot and shut room. This water was then cooled to room temperature before being managed to the rodents with body loads going from 70 to 110 g. Two kinds of tests...
May 2020
Journal of Plant Breeding and Crop Science
Allelic variability of oil palm inter-population progenies based on simple sequence repeats markers
The genetic structure and variability was described among 52 oil palm inter-population crosses after two selection cycles using simple sequence repeats markers (SRR). The 10 sets of SSR markers covering 62.5% of the oil palm genome showed a high level of polymorphism (average number of alleles per locus = 6.7; unbiased expected heterozygosity = 0.655; G”st = 0.346) across the oil palm samples. On the basis of...
May 2020
Journal of Hospitality Management and Tourism
Assessing the impact of ecotourism on livelihood of the local population living around the Campo Ma’an National Park, South Region of Cameroon
Ecotourism has been reported as a sustainable measure of bridging conservation goals and livelihood sustenance around protected areas, with very little information on the Campo Ma’an National Park (CMNP). This study was initiated to assess the impact of ecotourism activities on the livelihood of the local population living around the CMNP. Data were collected with questionnaires through household surveys and focus...
May 2020
Journal of Plant Breeding and Crop Science
Potential of ten wild diploid cotton species for the improvement of fiber fineness of upland cotton through interspecific hybridization
Cotton is the highest source of natural fiber in textile industry worldwide. With the modern spinning technologies, the demand for cotton fiber with higher quality has increased, making the genetic improvement of fiber quality one of the main challenges for cotton breeders. In cotton breeding, wild species are important source of several desirable genes for genetic improvement of the main cultivated cotton Gossypium...
May 2020
Journal of Plant Breeding and Crop Science
Establishment of an early selection method (criteria) for breeding in cowpea (Vigna unguiculata)
Populations with high genetic variability are targeted by breeders as they create opportunity for selection and genetic improvement. To achieve this, multiple populations are created, but resources are often scarce. This calls for identification of populations with the desired traits at early generation. The study was carried out at MUARIK in seasons 2017A and 2017B on 135 F2 and 40 F3 cowpea populations respectively...
May 2020
Journal of Cancer Research and Experimental Oncology
Prevalence of cervical intraepithelial neoplasia and its associated factors among women attending healthcare services in Eastern Uganda
Cervical malignancy is still the leading cause of death for middle-aged women in the developing world. In Uganda, literature has shown that, cervical cancer incidence and death rates was 45.6 and 25 per 100,000 women respectively. However, the actual magnitude of cervical malignancy in Uganda might be higher since most of the cases are never reported. This study assessed the prevalence of cervical intraepithelial...
May 2020
Journal of Ecology and The Natural Environment
Customs and traditional management practices of coastal marine natural resources in Lower Casamance: Perspectives of valorisation of endogenous knowledge
In southern Senegal, specifically in Lower Casamance, many marine and coastal resources are of significant sociological importance for Jola populations. They are essential both for worship and for sustenance. Thus, through different customs and practices, the Jola helps to preserve their natural environment, even if their primary motivations were hardly conservation. Perceptions, beliefs, and avoidance practices with...
May 2020
Journal of Ecology and The Natural Environment
Tree’s spatial pattern, diversity and distribution in sub humid mountains ecosystems in south-west Togo
West African Guinean forests are among the most diverse and threatened ecosystems in the world. The study aims to provide new insights about tree species patterns, abundance, and diversity for better management in Togo. Species diversity and density of trees were assessed in 170 plots randomly selected in the study area. Each tree with DBH >10 cm was identified and measured. Stem density, basal area, and diversity...
May 2020
Journal of Veterinary Medicine and Animal Health
Causes of organ condemnations in cattle at slaughter and associated financial losses in Siaya County, Kenya
Cattle production is an important economic activity worldwide. Its potential, however, is not fully maximized owing to disease conditions, some causing condemnation and wastage of edible organs at slaughter and a threat of zoonoses. This work aimed at establishing definitive causes of organ condemnation and financial losses in cattle from three slaughterhouses (Kaumara, Siaya, and Ugunja) in Siaya County, Kenya, through...
May 2020
African Journal of Pharmacy and Pharmacology
Comparative effect on liver fibrosis of bicyclol and silymarin
Bicyclol and silymarin are widely used in the treatment of various liver diseases; however, there is no report on comparative effect of them on liver fibrosis. To compare their liver protective effect, liver fibrosis rats induced by bile duct ligation (BDL) were orally treated with 100 mg/kg bicyclol and 100 mg/kg silymarin respectively for 4 weeks. Liver index, liver function activities, inflammatory biomarkers,...
May 2020
Journal of Toxicology and Environmental Health Sciences
Heavy metal pollution status and risk assessment on area with artisanal mining activities
This study was undertaken to re-evaluate the heavy contamination level of Bagega community which recorded acute lead poisoning in 2010 and was reclaimed between 2010 and 2012. The levels of the following heavy metals (Zn, Pb, Hg, As and Cd) was measured in sixteen sampling sites around Bagega and its environs using Varian AA240 Atomic Absorption Spectrophotometer. The assessment of pollution was achieved using the...
Page 4 of 1189, showing 50 records out of 59446 total, starting on record 151, ending on 200
