Articles
Page 8 of 1138, showing 50 records out of 56876 total, starting on record 351, ending on 400
August 2018
Educational Research and Reviews
The frequency of using idioms in writing for the students learning Turkish as a foreign language
In foreign language teaching, the transmission of the culture within which the target language grows is as important as teaching new words and grammar. All elements of the culture have their own special places within the vocabulary of the language. Reflecting not only the linguistic structure but also the culture of the society to which they belong, idioms pose utmost importance for foreign language teaching. The aim of...
August 2018
Educational Research and Reviews
The moral and citizenship education methods performed in the last period of Ottoman
The present study aims to investigate the subjects of the works written on moral and citizenship education during the Tanzimat period and after and the methods considered for these courses. The other aim of this study is to demonstrate that the Ottoman educators were not unaware of the methods implemented in the lessons in today’s modern education system and the education system of Ottoman was well aware of these...
August 2018
Journal of Medicinal Plants Research
Evaluation of antiplasmodial potential of Aloe barbadensis and Allium sativum on plasmodium berghei-infected mice
A significant percentage of the developing countries are living in malaria-endemic communities and are prone to contacting the disease. The fight against malaria is faced with the occurrence of widespread resistance of Plasmodium falciparum to the available anti-malarial drugs. Thus, this study evaluates the anti-malarial activity of extracts of Aloe barbadensis and Allium sativum in Plasmodium berghei infected mice. To...
August 2018
Journal of Medicinal Plants Research
Medicine bottled (garrafada): Rescue of the popular knowledge
Using plants to treat health problems is an ancient practice that is still practiced today. One way that plants are used to improve health is through medicine bottled (garrafada). A medicine bottled is a homemade mixture of medicinal plants added to a solvent. Medicines bottled are medicinal mixtures that have been widely used, especially by residents of rural areas. Therefore, the goal of this study was to determine...
August 2018
Journal of Medicinal Plants Research
Comparison of several hydrophilic extracts of Polypodium leucotomos reveals different antioxidant moieties and photoprotective effects in vitro
Oral photoprotection can be used to prevent photocarcinogenesis and photoaging. It is mainly based on the presence of antioxidant moieties in phytochemical extracts. The appearance of different botanical formulations endowed with apparently similar properties requires their side-by-side examination using an unbiased approach. The objectives of this study were to determine the antioxidant properties of several extracts...
August 2018
African Journal of Agricultural Research
Herbicidal effects of Datura stramonium (L.) leaf extracts on Amaranthus hybridus (L.) and Tagetes minuta (L.)
Evolution of weeds resistant to herbicides demands new solutions to cope with the problem since economic losses generated by weeds can be higher than those caused by insect pests. Bioactive compounds known as allelochemicals have the potential to act as natural herbicides in weed management in agro-ecosystems. Laboratory, pot and greenhouse experiments were carried out to investigate the herbicidal effects of Datura...
August 2018
African Journal of Agricultural Research
Implications of climate change and variability on food security in Kenya
This study assessed the impact of climate change and climate variability on food security in Kenya based on a sample size of 270 farmers randomly selected from semi-arid agro-ecological zones in Kenya. Both primary and secondary data were used in the present study. Data analysis was conducted using descriptive statistics and regression models. The results revealed that increase in temperature and reduction in rainfall...
August 2018
African Journal of Agricultural Research
Handling and utilization pattern of cattle milk and milk products in Northern Ethiopia
A study was carried out in Enderta district, northern Ethiopia, with the objective of investigating traditional cattle milk and butter production, off take and traditional handling and utilization pattern of bovine milk and butter. Respondents who have milking cows and experience of dairying were purposively selected for the study. A semi structured questionnaire and checklist were prepared to collect the data through...
August 2018
African Journal of Agricultural Research
Foliar application of bio-fertilizers influenced the endogenous concentrations of phytohormones and amino acids in leaves and roots of olive trees (Olea europaea L. cv. Chemlali)
The chemical composition of olive leaves and roots of Chemlali variety was evaluated regarding the contents of amino acids and endogenous phytohormones under foliar application of biofertilizers (F1: rich in nitrogen (N), phosphorus (P), potassium (K); F2: rich in calcium (Ca); F3: application of F1 and F2). The results of this study demonstrated significant effects of tested fertilizers on the concentrations of amino...
August 2018
African Journal of Agricultural Research
Multivariate analysis of phenotypic variability in Tef [Eragrostis tef (Zucc.) Trotter] genotypes from Ethiopia
Tef [Eragrostis tef (Zucc.) Trotter] is an important food crop in Ethiopia. The present research was conducted to characterize the phenotypic variability of 68 tef genotypes collected from Ethiopia. Where a Bi-replicated 7×10 alpha lattice design was used to evaluate the 70 tef genotypes at Holetta and Debre Zeit Research Centers during 2015. Based on the results of cluster analysis (CA), genotypes were grouped...
August 2018
African Journal of Agricultural Research
Identification of important morphological traits in Mozambican sorghum [Sorghum bicolor (L.) Moench] germplasm using multivariate analysis
Classification of sorghum [Sorghum bicolor (L) Moench] breeding material based on multiple crucial characters is important towards the possible formation of homogeneous groups of genotypes and groups that can be exploited in the identification of parents for use in a breeding program. The objective was to determine the morphological characters that distinguish desirable breeding material and group the genotypes of...
August 2018
African Journal of Pharmacy and Pharmacology
Study on increasing the solubility and dissolution rate of sulfamethoxazole by cyclodextrins
The aim of this study was to enhance the solubility and dissolution rate of sulfamethoxazole (SMZ) by preparing the inclusion complexes with β-cyclodextrin (β-CD), hydroxypropyl-β-cyclodextrin (HPβ-CD) and γ-cyclodextrin (γ-CD). The effect of the type of cyclodextrins used for the preparation of complexes, on the in vitro dissolution profiles and solubilities in different mediums (pH 4.5...
August 2018
African Journal of Pharmacy and Pharmacology
Extrapyramidal and purgative effects of fluphenazine in turkeys
Fluphenazine is a typical antipsychotic medicine with extrapyramidal effects. It was tested for purgative and neurological effects in turkeys. The results showed that the drug induced purgation at a dose range of 5 to 200 mg/kg body weight causing highest frequency of fecal droppings (7) at 10 mg/kg in 7 min and lowest frequency of dropping (1) at 50 mg/kg. However, the number of fecal droppings was not linearly...
August 2018
African Journal of Pharmacy and Pharmacology
Anti-ulcer and hematological properties of virgin coconut oil (VCO) against indomethacin-induced gastric ulcer in experimental rats
Previous studies have reported various health benefits of virgin coconut oil (VCO) such as weight management, treatment of burns, infections, improve phagocytic activity, etc. The present study was conducted to investigate the anti-ulcer and hematological properties of VCO against indomethacin-induced gastric ulcers using rat model. Twenty-four Wistar albino rats were used for the study and were divided into 6 groups of...
August 2018
African Journal of Biotechnology
Development and validation of a high performance liquid chromatography-diode array detection (HPLC-DAD) method for the quantification of rutin and isoquercetin in Morus nigra L. (Moraceae)
Morus nigra L. is widely used by the population of the São Francisco Valley (Brazil) for the treatment of several diseases such as hypertension, diabetes, arthritis etc. The objective of this study was to develop and validate an analytical method that is capable of identifing and quantifing flavonoids in the ethanolic crude extract (Mn-EtOH) and its ethyl acetate phase (Mn-AcOEt) obtained from M. nigra leaves...
August 2018
African Journal of Biotechnology
Effect of spices on the microbiological quality of Hibiscus sabdariffa (zobo) drink and molecular characterization of the associated spoilage organisms
Hibiscus sabdariffa drink (zobo) was preserved with three concentrations of cloves (Syzygium aromaticum), ginger (Zingiber officinale) and mixture of cloves and ginger, respectively while the control had no spice. The bottled H. sabdariffa drink was stored at 28 ± 2°C for 16 days. The total bacteria and fungi counts were determined every 48 h during storage. Bacterial and fungal growths were not detected in...
August 2018
African Journal of Biotechnology
Camwood (Baphia nitida) alcoholic extract: A suitable counter stain for haematoxylin in the demonstration of liver and kidney histomorphology
The counter staining ability of Camwood (Baphia nitida) alcoholic extract and its electrostatic compatibility with haematoxylin was determined. One gram of locally sourced red paste was subjected to simple extraction in 100 ml of 70 and 95% alcohol, respectively. Primary staining of buffered formalin fixed, paraffin embedded liver and kidney tissues was done with haematoxylin followed by counter staining with extract...
August 2018
African Journal of Biotechnology
Genetic diversity among elite chickpea (Cicer arietinum L.) varieties of Ethiopia based on inter simple sequence repeat markers
The inter simple sequence repeat (ISSR) marker was used in this study for genetic fingerprinting and identification of released chickpea varieties and for the determination of the genetic relationships among these cultivars. A total of 19 released chickpea varieties were subjected to ISSR analysis with the objective of evaluating the genetic diversity among the cultivars. A total of 20 ISSR primers were initially...
August 2018
African Journal of Microbiology Research
Low accuracy of the McFarland method for estimation of bacterial populations
The McFarland method is designed to estimate bacterial concentrations by means of a turbidity scale (absorbance) which consists of a series of tubes previously calibrated, and with an optical density produced by the precipitation of barium sulphate. This absorbance is compared to bacterial populations. The most used absorbance is the one corresponding to 0.5 on that scale, which assumes a population of 1.5×108...
August 2018
African Journal of Microbiology Research
Efficacy of plasma micro broth dilution assay for antifungal susceptibility testing of Candida albicans
Fungal infection and antifungal drug resistance especially in the treatment of immuno suppressive syndromes, has created an increased demand for reliable and affordable methods of in vitro testing of antifungal agents that can assist in their diagnosis. This study aimed to investigate antifungal susceptibility testing method that is reliable, flexible, affordable, accurate, cheap and less time consuming in order to...
August 2018
African Journal of Microbiology Research
Antimicrobial susceptibility pattern of Gram negative bacteria isolated from intensive care units in Al-Ahsa, Kingdom of Saudi Arabia
Antimicrobial resistance by bacteria isolates continues to receive attention globally. This investigation looks into the antibiotic susceptibility pattern of Gram negative bacteria isolated from intensive care unit patients in Al-Ahsa, KSA. Bacteria samples were classified based on the CDC criteria for the definition of ICU infections. Gram negative bacteria had been isolated on MacConkey agar using basic...
August 2018
African Journal of Microbiology Research
Isolation and identification of Escherichia coli, Salmonella and Pasteurella from holding grounds of live-bird markets at Addis Ababa, Ethiopia
A cross-sectional study was conducted to isolate and identify of Escherchia coli, Pastuerella multocida, Salmonella gallinarum and Salmonella pullorum from the holding grounds of five purposively selected Addis Ababa live bird markets from November 2016 to May 2017 using bacterial culture, grams staining and biochemical testing. A total of 90 pooled fecal samples were collected as both deep (35) (bottom layer of the...
August 2018
Scientific Research and Essays
Probabilistic seismic assessment of arch dams in Turkey
Arch dams are of great importance in the world. In Turkey, there are 1200 existing dams with different types. Arch dams are important due to their economic resource in irrigation and water supply which are significant to the homeland security and the agricultural economy. Researchers have been carrying out various studies on dams and their seismic resistance especially after the earthquakes that occurred in the recent...
August 2018
International Journal of Physical Sciences
Radionuclide concentration: The coal ash effect
Radionuclide concentrations in coal ash, soil mixed with coal ash and soil were determined using the gamma spectroscopic method. The average activity concentrations of 226Ra, 232Th, and 40K in coal ash samples were found as 35.0, 5.8, and 109.4 Bq/kg, respectively. The average activity concentrations of 226Ra, 232Th and 40K in soil mixed with coal ash samples varied from 21.2 to 30.8, 48.6 to 82.7, and 162.5 to 180.1...
August 2018
African Journal of Agricultural Research
Farmers’ synergistic selection criteria and practices for livelihood security through the sustainable uses of on-farm Sorghum landrace diversity, Ethiopia
The relationships among the multiple criteria that farmers in this study area, the north Shewa and south Wollo regions of Ethiopia, use to select which sorghum landraces to grow were examined in order to assess the extent of synergistic relatedness among them as they fulfilled their roles in meeting the farmers’ goals. Surveys were conducted on 300 randomly selected farmers’ fields during the 2011/2012...
August 2018
African Journal of Agricultural Research
Physiological quality of seeds of shepherd's purse (Zeyheria montana M. Bignoniaceae) as a function of substrate temperature and storage
The present study aimed to investigate the influence of different substrates, temperatures and storage conditions on shepherd's purse seed quality. It was evaluated in germination paper substrates Germitest®, vermiculite, sand and Plantmax®, and roller temperatures of 25, 30, 15-25 and 20-30°C. Longevity was measured by the temporal response to different packaging (paper, plastic and aluminum) and...
August 2018
African Journal of Agricultural Research
Agricultural mechanization in small rural properties in the State of Piauí, Brazil
The use of machines in the rural sector increases crop productivity in the field, making it essential to use these technologies for a successful rural enterprise in the market. In this way, this study aimed to analyze the current situation of agricultural mechanization in farms of small producers. The study was conducted in State of Piauí, in Brazil with 30 farmers in the region. This was a quantitative and...
August 2018
African Journal of Agricultural Research
Evaluation of chemical and non-chemical weed control practices on weed communities and maize yield in two agroecological zones of Swaziland
Manual weeding, maize-cowpea intercropping, pre-emergence (PRE) and early post-emergence (EPOST) herbicide applications comprised ten weed control practices evaluated in the 2015-16 cropping season on weed species structure and maize (Zea mays L.) yield in the Middleveld and Highveld of Swaziland. The herbicides used were Harness (acetochlor) and Dual Gold (S-metolachlor) as pre-emergence applications and Micro-Tech...
August 2018
African Journal of Agricultural Research
Public policy on the family farming sector in Brazil: Towards a model of sustainable agriculture
This study is based on a review of the literature that analyses the repercussions of the principal public policies established for the promotion of the family farming sector in Brazil. In this review, the processes that have contributed to the establishment of these policies are assessed critically, together with their mechanisms and the connections for the evaluation of their contributions to the promotion of...
August 2018
African Journal of Agricultural Research
Moisture content, moisture-related properties and agricultural management strategies of the Benue floodplain vertisols in North Cameroon
Vertisols are widespread in North Cameroon, but are undercultivated due to difficulties linked to their shrink-swell behaviour under different moisture conditions. Eighteen vertisol samples from five profiles representative of the studied area (Benue floodplain in North Cameroon) were studied to establish a relationship between moisture and physico-chemical characteristics and supplement data for planning sustainable...
August 2018
African Journal of Agricultural Research
Nitrogen fertilization in Oncidium baueri seedling growth
This study was conducted with the objective of evaluating the nitrogen fertilization in orchid seedling formation. The experiment was conducted in a greenhouse environment with a coated polypropylene mesh with retention capacity of 60% of the solar radiation flux at the greenhouse of the Department of Agronomy of State University of Londrina – PR, Brazil. One year old seedlings of the orchid species Oncidium...
August 2018
African Journal of Biotechnology
In vitro regeneration of Neocarya macrophylla (Sabine) Prance, wild fruit of Niger
Neocarya macrophylla is a spontaneous fruit species that constitutes the dominant population of Dallol Bosso in Southwestern Niger. In order to test the in vitro regeneration ability of this species, micro-propagation was applied to micro-cuttings from young almond seedlings. The Murashige and Skoog basal medium was enriched with several concentrations of naphthaleneacetic...
August 2018
African Journal of Biotechnology
Biomanagement of Rose and carnation wastes in flower industries with three epigeic earthworm species: Eisenia fetida, Eisenia andrie and Dendrobanae veneta
The horticulture sector in Ethiopia is being challenged by multifaceted hitches, among which managing excess wastes produced from the farms and minimizing the cost of inorganic fertilizers are the major ones. The performance of three epigeic earthworm species, Eisenia fetida, Eisenia andrie and Dendrobanae veneta, in managing flower (Rose and Carnation) wastes through vermicomposting was evaluated. The study was done...
August 2018
African Journal of Biotechnology
Effect of sample extraction, preparation methods on HPLC quantification of plumbagin in in vivo and in vitro plant parts of Plumbago zeylanica L.
Plumbagin is an important therapeutic compound of Plumbago zeylanica L., the commercial demand of this compound warrants optimizing a suitable method to isolate plumbagin in large scale. The present study was undertaken to obtain the maximum recovery of plumbagin content by employing different extraction methods viz., ultra-assisted extraction (UAE), maceration extraction (ME), soxhlet extraction (SE), serial soxhlet...
August 2018
African Journal of Biotechnology
Co-expressing house fly cytochrome P450 6A1 and human cytochrome P450 reductase in Escherichia coli to bioconvert insecticide aldrin
Aldrin used in agricultural as well as industrial or home pest control is known to be a persistent organic pollutant, having chronic adverse effects on wildlife and humans. The degradation of aldrin has drawn a lot of attentions. In this study, house fly cytochrome P450 6A1 (CYP 6A1) or both house fly cytochrome P450 6A1 and human NADPH-P450 reductase (CPR) together was expressed in Escherichia coli cells to study their...
August 2018
African Journal of Biotechnology
Isolation and identification of bacterial endophytes from Crinum macowanii Baker
The widespread distribution of Crinum macowanii across the African continent has entrenched the plant’s medicinal usage in treating diverse diseases. While its phytochemistry is well established, its microbial symbionts and their utility have not been described. As such, five bacterial endophytes, viz. Staphylococcus species C2, Staphylococcus species C3, Bacillus species C4, Acinetobacter species C5 and...
August 2018
African Journal of Microbiology Research
Isolation of a Lactobacillus strain from aguamiel and preliminary characterization of its antimicrobial components
The aim of the study was to characterize the antimicrobial components of Lactobacillus paracasei KSI. In the study, a L. paracasei KSI strain was isolated and identified from aguamiel using a 16S rRNA, hsp, recA and rpoBgenes sequencing. The antimicrobial capacity of the L. paracasei strain KSI was determined by agar double layer diffusion technique, while the antagonistic activity of the cell-free extract (E-KSI)...
August 2018
African Journal of Microbiology Research
Internal transcribed spacers (ITS) based identification of Trichoderma isolates and biocontrol activity against Macrophomina phaseolina, Aspergillus niger and Meloidogyne incognita
Ten Trichoderma isolates were isolated from different locations in Egypt. Amplification and sequencing of internal transcribed spacers (ITS) was employed to identify Trichoderma isolates that exhibited from 99 to 100% identity with three species of Trichoderma: Trichoderma harzianum, Trichoderma asperellum and Trichoderma longibrachiatum. The biocontrol activity of Trichoderma isolates against Macrophomina phaseolina,...
August 2018
African Journal of Microbiology Research
Antimicrobial resistance pattern of Acinetobacter spp. isolated from clinical samples in a tertiary care hospital at Madinah, Saudi Arabia
Multidrug resistance, in rapidly spreading bacterial species, is a matter of concern in health care units. Samples (6840) collected from a Saudi hospital in Madinah, were screened for Acinetobacter spp. and studied for frequency, gender distribution, and seasonal variations besides antimicrobial resistance pattern. Acinetobacter strains represented 5.5% of the clinical isolates from different sources. Of these, 63% were...
August 2018
African Journal of Microbiology Research
Prevalence and genetic diversity of the strains of Bacillus cereus groups in food for infants and young children in México
The aim of this study was to determine the prevalence and genetic diversity of the strains of Bacillus cereus groups isolated in México from foods for infants and young children. A total of 94 foods from a single commercial brand were analyzed to find B. cereus through a pre-enrichment method of colonial morphology in agar mannitol yolk polymyxin. Specific colonies were selected to be analyzed by polymerase chain...
August 2018
African Journal of Business Management
Move your Business Forward with Harvard
The CEIBS-Harvard Executive Program celebrated its 2nd Edition with the slogan: Move your business forward with Harvard. Executives can move their businesses forward through this annual executive program. The program took place from July 21st to 27th, 2018, at the Harvard Faculty Club in the prestigious city of Cambridge, Massachusetts.
August 2018
African Journal of Business Management
Determinants of growth of private investment in Jimma City, Ethiopia
Private investment is one of the mainsprings of economic growth. Jimma city has been identified as the low private investment activities in the development and growth of the economy. Thus, the objective of this study is to explain the determinants of private investment in the city. In an attempt to achieve this objective, data was collected through self-administered questionnaire from 171 sample respondents through a...
August 2018
African Journal of Business Management
The innovation of local public-sector companies: Processing big data for transparency and accountability
New Public Governance (Klijn, 2008) is the basis for our analysis of the group of public-sector and public service companies. It has furthered the involvement of citizens and of political governance in the management of resources (Boston and Pallot, 1997; Northcott et al., 2012). In order to manage the group while remaining accountable and guiding production choices, it is essential to have an overview and a guarantee...
August 2018
Journal of Medicinal Plants Research
Ethnobotanical study of medicinal plants used by local people in Menz Gera Midir District, North Shewa Zone, Amhara Regional State, Ethiopia
This study was conducted in Menz Gera Midir (Ethiopia) to document medicinal plants and related indigenous knowledge of local people. Data were collected from 72 (12 of them key) informants using semi-structured interview, group discussion and guided field walk. Priority ranking, paired comparison and direct matrix ranking were used in data analysis. A total of 155 medicinal plant species, 104 (67.1%) from natural...
August 2018
Educational Research and Reviews
Determinants of students’ vulnerability to attrition in higher education: Evidence from Arba Minch University, Ethiopia
This study aimed at assessing the level and determinants of students’ vulnerability to attrition in Arba Minch University, Southern Ethiopia using a random sample of 547 students. The study revealed that, out of 547 sample students, 207 (38%) students were found highly vulnerable to attrition, 51 (9%) students were moderately vulnerable and the remaining 289 (53%) were not vulnerable. From highly vulnerable...
August 2018
Educational Research and Reviews
Assessment of information and communication technology (ICT) competence and literacy skills among undergraduates as a determinant factor of
academic achievement
Almost every human endeavor is supported or driven by Information and Communication Technology (ICT) including education. Teaching, learning, assessment, course registration, payment among other things are now ICT-based. Humans have attempted to use technology to improve their life span and quality, and education is not excempted in this great paradigm shift. This paper focuses on the Information and Communication...
August 2018
Educational Research and Reviews
Indicators of characteristics of Learners Autonomy in English Language of Primary 6 students in the Northeast of Thailand
This study aims to develop indicators of characteristics of Learners Autonomy in English Language of Primary 6 students in the Northeast of Thailand. The researcher used a mixed research methodology. The samples were divided into 2 categories which are qualitative and quantitative samples. On qualitative sample, 7 experts in humanities and social were interviewed to assess the development of indicators of...
August 2018
Journal of Medicinal Plants Research
Evaluating the antipyretic activities of aqueous and ethanol extracts of leaves of Artemisia Annua in mice
Phytomedicines obtained from herbal sources are in great demand as they are able to cure many infectious diseases. Artemisia annua is an herbaceous plant that belongs to Composite family. As traditional medicine, it is used for cancer, ulcer, rheumatic pain and other ailments including fever in children. The objective of the present study was to evaluate the antipyretic activities of the aqueous and ethanol extracts of...
August 2018
African Journal of Agricultural Research
Physical characteristics of colza seeds treated and coated with different filling materials
The knowledge about the physical characteristics of seeds, whether coated or not, is essential for the design of machines and equipment. Therefore, the objective of this work was to determine the physical characteristics of colza (Brassica napus L.) seeds coated with bentonite, gypsum and kaolin, treated with fungicide (carboxin + thiram) and aqueous extract of black pepper (Piper nigrum L.). The untreated colza seeds...
August 2018
African Journal of Agricultural Research
Yield and water use efficiency of cauliflower under irrigation different levels in tropical climate
The aim of the present study is to assess the effects of different irrigation blades on the growth and yield of cauliflower cv. Verona CMS. The plants were cultivated in Red-yellow Latosol during the dry period (winter-spring 2014 and 2015), in the Cerrado-Amazon transition region, Middle-Northern of Mato Grasso State, Brazil. The reference evapotranspiration (ETo) was recorded through the Class A pan method by using...
Page 8 of 1138, showing 50 records out of 56876 total, starting on record 351, ending on 400
