Articles
Page 7 of 1138, showing 50 records out of 56876 total, starting on record 301, ending on 350
August 2018
Journal of Languages and Culture
Challenges of students’ discipline in English as a Foreign Language (EFL) classes: A case of primary schools in Dembi Dollo and Nekemte towns of Oromia Region, Ethiopia
In many cultures in the world, discipline is a very important quality of students in schools. Thus, the prime objective of this study was to explore major factors contributing to students’ discipline problems in some primary schools of Dambi Dollo and Nekemte Towns in Ethiopia. To achieve the objective, basic research questions were developed, related literatures were reviewed and different methodologies were...
August 2018
Journal of Hospitality Management and Tourism
Potential and challenges of rock art for sustainable tourism development: The case of Harar - Dire Dawa region, South Eastern Ethiopia
Prehistoric rock art is one of the earliest form of human communication system. It has an aesthetic, spiritual, socio – cultural and artistic values. This study has attempted to address the role of rock art tourism for sustainable socio-economic development with the objective of describing the potential of rock art sites for tourism in Harar – Dire Dawa and in its environs. It also tried to identify...
August 2018
African Journal of Biochemistry Research
The interplay between paraoxonase-1 and epigenetic changes in colorectal carcinoma
Colorectal cancer (CRC) is the third leading cause of cancer-related death. Colorectal mucosa has high levels of oxidative stress (OS) landmarks. OS has deleterious effect on cell structures as lipids, proteins and DNA. Markers of protein oxidation are named as advanced oxidation protein products (AOPPs) which have been considered as novel disease biomarkers. OS may also induce DNA damage which leads to mutation of...
August 2018
Journal of Dentistry and Oral Hygiene
In vitro antimicrobial activity of CatDex against Porphyromonas endodontalis
An achievable goal in root canal therapy is to reduce the bacterial population to the lowest level. Irrigation and instrumentation play an important role in achieving this objective. Sodium hypochlorite (NaClO) is the most frequently used irrigation solution; however, its main disadvantage that it is cytoxic to soft tissues following inadvertent extrusion. CatDex is a substance that promises to match the antimicrobial...
August 2018
Journal of Ecology and The Natural Environment
Wetland ecosystems in Ethiopia and their implications in ecotourism and biodiversity conservation
Wetlands are ecosystems in which water covers the land. They provide economical, ecological, societal and recreational benefits to humans. Although complete documentation is lacking, wetlands make a significant part of Ethiopia covering an area of 13,700 km2. Wetlands with a great potential for ecotourism development in the country include the rift valley lakes, the floodplains in Gambella, the Awash River Gorge with...
August 2018
Journal of Ecology and The Natural Environment
The role of indigenous technical knowledge and geographical information systems (GIS) in sustainable natural resource management around the Teso Community in Kenya
There is a growing awareness on the importance of indigenous technical knowledge and the necessity of its integration into modern knowledge in order to address problems related to natural resource conservation. However, there is a lack of study that demonstrates clearly how the two types of knowledge systems could be successfully integrated together. This paper presents such a framework that has been developed through a...
August 2018
Journal of Ecology and The Natural Environment
Patterns of short- and long-term responses of honey bee (Apis mellifera L.) colony to changes in its internal environment
Management of the honey bee (Apis mellifera L.) colony for honey production and pollination of crops includes the manipulation of its internal environment. It is not yet understood how the colony might respond to such manipulations in the short- (within four or five days post-treatment) and long-term (after 21 days post-treatment) and whether the once generated short-term response persists into the long-term. Five...
August 2018
African Journal of Plant Science
Comparative study of yield performance and nutrient composition of the edible mushroom Pleurotus pulmonarius, cultivated on different substrates
Sawdust from four types of woods (Milicia excelsa, Gmelina arborea, Afzelia africana and Khaya senegalensis) was used for cultivation of Pleurotus pulmonarius. Growth and yield of fruiting bodies were monitored and biological efficiency (BE) determined. Proximate composition of fruiting bodies was determined; total phenol content (TPC) and total flavonoid content (TFC) of the extract from the mushrooms were...
August 2018
African Journal of Plant Science
Evaluation of faba bean (Vicia faba L.) varieties for yield and reaction to chocolate spot disease at Chencha, Southern Ethiopia
Field experiment was conducted at Chencha Woreda with the objective of evaluating faba bean varieties for better yield and chocolate spot disease resistance during 2015 main cropping season. Ten improved faba bean varieties and two local controls were evaluated in randomized complete block design (RCBD) with three replications. Field performances of varieties were evaluated for grain yield and yield parameters on...
August 2018
African Journal of Plant Science
Response of common bean (Phaseolus vulgaris L.) varieties to rates of blended NPS fertilizer in Adola district, Southern Ethiopia
Common bean is one of the most economically important pulse crops cultivated in Ethiopia. However, its average yield reported at national level remains far below the potential yield to be attained. This is partly due to low soil fertility management, inappropriate agronomic packages and diseases and pest problems. Hence, this experiment was conducted to investigate the effect of blended NPS rates on growth, yield and...
August 2018
African Journal of Plant Science
Protocol optimization for in vitro propagation of two Irish potato (Solanum tuberosum L.) varieties through lateral bud culture
Potato is a versatile vegetable that is eaten all around the year. The objective of this study was to establish a protocol for in vitro micropropagation of Gudene and Belete popular varieties in Ethiopia from lateral bud explants. For shoot induction and multiplication, lateral bud explants were cultured on MS basal medium supplemented with different concentration levels of PGRS. Rooting was done on the same media type...
August 2018
African Journal of Plant Science
Study on suitability of locally available substrates for cultivation of oyster mushroom (Pleurotus ostreatus) in Jimma zone, Oromia regional state, southwestern Ethiopia
A mushroom is the fleshy, spore-bearing fruiting body of a fungus, typically produced above the ground on soil. The nutritional value of mushrooms is greater than one may think. Generally, it is a nature's hidden treasures of nutrition. The aim of this study was to access the suitability of available agro wastes of some lignocelluloses materials containing five different types of main substrates namely, sawdust...
August 2018
Journal of Engineering and Computer Innovations
RodentSQL: A software suite for colony management of animal protocols
Most of the mouse experiments tend to generate a large-scale data, which is needed to be stored and eventually made publicly available. Many research groups still struggle to have central storage and integrated management system of this metadata. Some existing tools like Microsoft excel sheets and couple other colony management web/cloud-based tools are either cumbersome or expensive. There seems a constant need for...
August 2018
African Journal of Cellular Pathology
Some plasma biochemical changes in layers experimentally infected with Pasteurella multocida
The present study was carried out to investigate some biochemical alterations in layers experimentally infected with Pasteurella multocida. A total of 20 eighteen-week old ISA Brown layers were used in the experiment. The birds were randomly assigned to two groups (infected and control) of 10 layers each. To establish infection, each bird in the infected group was challenged by intra nasal (0.1 ml) and intramuscular...
August 2018
African Journal of Cellular Pathology
Effect of Theobroma cacao on renal function of wistar albino rats induced with anaemia
The study investigated the effect of Theobroma cacao on renal function of phenylhydrazine induced anaemic albino rats. Forty albino rats were divided into 8 groups of five rats each namely control (group A), Phenyl hydrazine (group B) while groups C, D and E were given phenylhydrazine and administered with 100,200 and 500 mg/kg of T. cacao respectively while groups F, G and H were given 200,500 and 1000 mg/kg of T cacao...
August 2018
African Journal of Mathematics and Computer Science Research
Continuous frame in Hilbert space and its applications
In this paper, we study continuous frames in Hilbert spaces using a family of linearly independent vectors called coherent state (CS) and applying it in any physical space. To accomplish this goal, the standard theory of frames in Hilbert spaces, using discrete bases, is generalized to one where the basis vectors may be labeled using discrete, continuous or a mixture of the two types of indices. A comprehensive...
August 2018
African Journal of Political Science and International Relations
Political trust in Botswana’s executive presidency: The Khama era
This article examines political trust in the institution of the presidency. It focuses on the Khama era and aims to find out the underlying motivations to trust the president. Using the Afrobarometer surveys, the paper finds that Batswana are more likely to distrust the president if they perceive high levels of corruption, poor government performance and are dissatisfied with democracy. Partisanship is important in...
August 2018
African Journal of Political Science and International Relations
Analysis of the pre-colonial, colonial and post colonial bureaucracy of Buganda: The major milestones in its development
Bureaucracy in Buganda polity transcended the pre-colonial, colonial and post-colonial era. During each era, the principles which underpin the Weberian bureaucracy manifested variously. Pre-colonial bureaucracy manifested as a strong chain of command through the hierarchical kingdom structure; and centralized control by the King through the chiefs. During the colonial times, bureaucracy had duality in the chain of...
August 2018
International Journal of Library and Information Science
Role of librarians in the protection of copyright in Nigeria
The objective of the study is to examine the role of librarians in the protection of copyright in Nigeria. The study adopted a descriptive survey design. Questionnaire was the primary tool used for data collection. The study population consists of 63 professional librarians from the five selected universities in Ogun State. A total of 49 questionnaires were retrieved out of 63 administered and given a response...
August 2018
International Journal of Library and Information Science
Student perception of electronic resources use in Rajshahi University Library: A case study
The growing use of electronic resources in and outside the libraries has become a major issue of discussion all over the world. Information seekers, particularly students and teachers are becoming key proponents of e-resource use. Against this backdrop, this paper explores the pattern of e-resource use by undergraduate and post-graduate students of Rajshahi University – one of the oldest and largest universities...
August 2018
Journal of Engineering and Technology Research
Analytic network process in petroleum hydrocarbon decontamination management in Nigeria
This study examined the application of the Analytic Network Process (ANP), a multi-criteria decision analysis tool, in the selection of the best bioremediation technique for the remediation of a hydrocarbon-polluted site at Kwawa (4°36'29.26''N, 7°28'55.70''E) in Ogoniland, Niger Delta province, Nigeria. The decision-making problem involved four bioremediation techniques (that is,...
August 2018
Journal of Internet and Information Systems
Performance comparison of in-memory and disk-based databases using transaction processing performance council (TPC) benchmarking
Database performance throughput is one of the main measurements of the application effectiveness or a system, in terms of speed and delivery. Higher application efficiency is always a goal for any organization; therefore, finding the way to improve the database performance has priority. There are two main factors that can contribute to performance gain or slowness. Firstly, how well designed the database structure is in...
August 2018
Journal of Accounting and Taxation
Effect of audit quality on market price of firms listed on the Nigerian stock market
This study examines the effect of audit quality on share prices of Nigerian oil and gas firms using the regression and covariance analyses. Findings from the regression anlysis suggests that the composition of the audit committee and auditor type has significant effect on the market prices of quoted firms. There is a positive and significant relationship between audit committee composition and share prices. The...
August 2018
Journal of Accounting and Taxation
Investment in accounting information system and sales growth: An investigation of Nigeria small and medium enterprise
Previous studies indicated that most organizations do not invest in AIS because they do not know the importance of AIS to their organizational growth, while some that invested do not know it impacts on their organizational growth. This study examined investment in accounting information system and its effect on sales growth of Nigeria Small and Medium Enterprises (SMEs). The specific objectives of the study are to;...
August 2018
International Journal of Plant Physiology and Biochemistry
Effects of salinity stress on growth in relation to gas exchanges parameters and water status in amaranth (Amaranthus cruentus)
Salinity is a major detrimental abiotic factor for plant growth. The main purpose of this study was to analyze the effects of different NaCl concentrations on growth and some physiological parameters related to gas exchanges and water relations in amaranth (Amaranthus cruentus) plants. Three weeks old amaranth plants from the cultivar ‘Locale’ were exposed in nutrient solution to 0, 30 or 90 mM NaCl...
August 2018
Medical Case Studies
Case report: Challenges in diagnosis and treatment of Small bowel diverticulitis presenting with
acute abdomen
Small bowel diverticulitis is a rare condition that is often excluded in the differential diagnosis of acute abdomen. We herein present two cases of patients with small bowel diverticulitis who presented with acute abdomen. First case was a 72-year-old lady who presented to emergency with 2 days of sudden-onset worsening generalized abdominal pain. The computed tomography (CT) revealed a segment of abnormally thickened...
August 2018
Journal of Horticulture and Forestry
Effects of seed pre-treatments on the germination and early growth of Echinops giganteus C.D Adam
This study aims to evaluate the effects of seed pre-treatments on the germination of Echinops giganteus. The pre-treatments used were partial manual removal of the pappus (T1), total removal of the pappus (T2), roasting for 2 min (T3), roasting for 4 min (T4), roasting for 6 min (T5), soaking in water for 6 h (T6), soaking for 12 h (T7), soaking for 24 h (T8) and the control (T0). The experiment was laid out in a...
August 2018
Journal of Entomology and Nematology
Determination of the larvicidal activity of benzoyl thiosemicarbazone and its Ni(II) complex against Aedes aegypti and Anopheles darlingi larvae in
Amazonas, Brazil
Due to the resistance of some mosquitoes to pyrethroids insecticides, new synthetic compounds are of great interest for the development of new insecticides against vectors of tropical diseases, especially in the Amazon region. Our aim was to synthesize and evaluate the larvicidal potential of benzoyl thiosemicarbazone and its Ni(II) complex against larvae of Aedes aegypti............ and Anopheles...
August 2018
Journal of Entomology and Nematology
Tomato Leaf miner (Tuta absoluta) (Meyrick 1917) (Lepidoptera: Gelechiidae) prevalence and farmer management practices in Kirinyanga County, Kenya
Pest invasion is one of the limiting factors affecting food production. Tomato leaf miner (Tuta absoluta) (Meyrick 1917) (Lepidoptera: Gelechiidae), is an invasive insect pest of tomato. However, In Kenya, there is limited information on the level of invasion of the pest in tomato producing areas in the country. We assessed the level of invasion of T. absoluta and farmer management practices in Kirinyaga County. Tomato...
August 2018
International Journal of Educational Administration and Policy Studies
Educational policies and programmes implementations: A case study of education funding, universal basic education (UBE) and teacher education
The present state of the Nigeria education system brings worry to the hearts of all stakeholders because education goals such as producing skilled and professionally competent graduates, basic education for all, education for technological advancement, all to fulfil the dream of national development and prosperity, are yet farfetched from being a reality. Literatures were reviewed on three of the policies in education,...
August 2018
Journal of Media and Communication Studies
Impact of mobile advisory and face-to-face communication in capability building among Indian farmers
This paper analyzed the impact of mobile advisory and face-to-face communication in capability building of farmers in Kancheepuram district, Tamil Nadu, India. These farmers accessed agricultural training and information services through Krishi Vigyan Kendra (KVK). KVKs had been established in different parts of the country to enhance agricultural productivity and to promote rural wellbeing. Gigler’s Alternative...
August 2018
Scientific Research and Essays
A study on comparison of air permeability properties of bamboo / cotton and cotton towels
As a result of the literature review, it was observed that previous studies concentrated mainly on investigating the water absorption properties of towel fabrics, but limited studies analyzed air permeability properties of towel fabrics. The purpose of this study is to investigate the air permeability of bamboo / cotton and cotton towels produced with different pile heights and to analyze the effect and importance level...
August 2018
African Journal of Agricultural Research
Cinnamon and citronella essential oils in the in vitro control of the fungi Aspergillus sp. and
Sclerotinia sclerotiorum
Among the fungi that cause damage and/or are spread by seeds, Aspergillus sp. and Sclerotinia sclerotiorum stand out, which have a worldwide distribution and a wide range of hosts. A viable and safer option than chemicals would be to use natural compounds for plant disease management. The objective of this study was to evaluate cinnamon (Cinnamomum cassia) and citronella (Cymbopogon winterianus) essential oils in the in...
August 2018
African Journal of Agricultural Research
Combined agronomic and climatic approaches for sorghum adaptation in Mali
In Sub-Saharan Africa, Genotype-Environment interaction plays a key role in formulating strategies for crop improvement. Multi-location trials have created enabling structure to determine varieties yield performance and stability. Crop modeling led to prediction of long-term and spatial effects of climate variability. Three improved varieties were compared to three landraces. Optimum cultivation areas minimizing the...
August 2018
African Journal of Agricultural Research
Critical variables for estimating productivity in maize as a function of plant population and spacing
The objective of this study was to find a group of independent variables that would influence and estimate maize (Zea mays L.) productivity, modeled by multiple linear regression. For that, an experimental delinquency in random order was used in a 2 × 2 factorial scheme, from two populations (45,000 and 65,000 ha-1 plants) and two spacings (0.45 and 0.90 m), with 20 replicates. Soil attributes and maize production...
August 2018
African Journal of Agricultural Research
Welfare effect of eliminating commodity price volatility: Evidence from Tanzania coffee farmers
This paper investigated the welfare consequences of reducing coffee price volatility in Tanzania. GARCH (1,1) model is fitted with monthly coffee prices from 1998 to 2017 to estimate the conditional and unconditional variance of the residual. The coefficient of relative risk aversion and unconditional variance of GARCH (1,1) model are applied in a typical Lucas-like representative argent model to examine the welfare...
August 2018
African Journal of Agricultural Research
Production performance evaluation of Koekoek chickens at Adami Tulu research center
A study was conducted to evaluate the production performance of koekoek chickens at Adami Tulu Research Center. Feed consumption, age at point of laying, annual egg production, mortality, and egg quality parameters were used as evaluation parameters. Mean feed consumption of starter, grower and layer of koekoek chickens at Adami Tulu Research Center was 56.4±4.6, 84.3±6.3 and 124±8.6 g/day,...
August 2018
African Journal of Agricultural Research
Rural public policies and the state of smallholders: Recent evidence from Brazil
The aim of this article is to characterize the current situation of family farmers or smallholders in Brazil and establish a connection with the rural public policies that exist in the country. This study analyzed the most current available data regarding family farming in Brazil, which included almost 4.7 million smallholders and their characteristics. Two analytical tools for unsupervised learning were combined,...
August 2018
African Journal of Biotechnology
Simple and rapid detached leaf technique for screening common beans (Phaseolus vulgarise L.) in vitro against angular leaf spot (Pseudocercospora griseola) disease
A rapid and reliable detached-leaf technique was developed for screening common bean (Phaseolus vulgaris) genotypes against angular leaf spot (ALS) disease caused by Pseudocercospora griseola. It is helpful to differentiate between susceptible and resistance common bean genotypes. Detached leaves of common bean tested genotypes were inoculated by immersing them into a spore suspension followed by placing into petri...
August 2018
African Journal of Biotechnology
Isolation and regeneration of protoplasts from leaf explants of Rhyncholaelia digbyana
A protocol for the isolation and regeneration of protoplasts from leaf explant of Rhyncholaelia digbyana is presented. The protoplasts were isolated using hemicellulase enzymes at 1.5, 2.25, and 3% (w/v), pectinase at 0.5 and 0.75% (w/v) and cellulase at 1 and 2% (w/v). Protoplast counting was carried out with a Neubauer camera and an optical microscope at 40X, and viability was determined with Evans blue dye at 0.025%...
August 2018
African Journal of Biotechnology
Detection of genetically modified DNA in processed maize and soybean products in Nigeria
Cultivation and commercial utilization of genetically modified (GM) crops has significantly increased in many parts of the world and particularly in developing countries where food security is a challenge. Despite stringent regulations requiring that food made from GM foods should be properly labelled, evidence of unlabelled foods made from GM crops sold in local markets in many of these countries is increasing. This...
August 2018
African Journal of Biotechnology
Preservative potentials of essential oils of three Nigerian spices in mixed fruit juice and their antioxidant capacity
The study was conducted to evaluate the preservative potentials of essential oils (EOs) of Piper guineense, Xylopica aethiopica and Tetrapleura tetraptera in mixed fruit juice and determine their antioxidant capacity. The preservative effect at varying concentrations was evaluated using S. cerevisiae, S. aureus and B. cereus as test isolates. The antioxidant properties were determined using 1,1-...
August 2018
African Journal of Microbiology Research
Molecular detection and characterization of Escherichia coli, Salmonella spp. and Campylobacter spp. isolated from broiler meat in Jamalpur, Tangail, Netrokona and Kishoreganj districts of Bangladesh
The study was conducted to isolate, identify and characterize bacterial samples from broiler meat collected from 20 different upazilla markets of Jamalpur, Tangail, Netrokona and Kishoreganj districts of Bangladesh. A total of 20 samples were subjected to bacteriological isolation and identification, and the isolated bacteria were subjected to antimicrobial susceptibility testing using disc diffusion method. Among the...
August 2018
African Journal of Microbiology Research
Screening of human diarrhoeal samples in Mymensingh city of Bangladesh for the isolation, identification and antimicrobial resistance profiles of Campylobacter spp.
Campylobacter spp. (Campylobacter jejuni and Campylobacter coli) are one of the major cause of food-borne bacterial diarrhoea in human worldwide. This study was conducted for the isolation, identification and antimicrobial resistance profiling of Campylobacter spp. from diarrhoeal samples of human collected from Surya Kanta (SK) hospital, Mymensingh Medical College, Mymensingh during the period of August 2016 to October...
August 2018
African Journal of Microbiology Research
Assessment of dominant bacterial strains isolated from Ntoba mbodi, an indigenous African alkaline-fermented food, and their potential enzyme activities
Ntoba mbodi is a stable and long-life alkaline-fermented food and the domestic-scale production depends upon microorganisms from the local environment. Previous studies on bacteria in Ntoba mbodi have reported the presence of Bacillus related species and other bacterial taxa. But the abundance of these bacteria in Ntoba mbodi still needs to be determined to assess their ecological importance in this particular...
August 2018
African Journal of Microbiology Research
Isolation and characterization of starch degrading rhizobacteria from soil of Jimma University Main Campus, Ethiopia
Starch degrading bacteria are important for different industries such as food, fermentation, textile, and paper. The aim of this study is to isolate and characterize bacteria able to degrade starch from the rhizospheres of various plants at four sites located in Jimma University main campus. Collected soil samples were labeled as kobo (AJUMC), Avocado (BJUMC), Banana (CJUMC), and Cana indica (DJUMC) respectively. Soil...
August 2018
African Journal of Business Management
How do teams become effective? A literature review and implication for Ethiopia
Teams have been recognized as the heart of organizations in previous decades and proved to be so in the current situation. However, in recent years different global forces have pushed organizations to their limit and forced them to restructure work and teams. Thus, this paper reviews articles on team effectiveness from 2000 to 2017 with the help of Google Scholar Search Engine using key words “teamwork” and...
August 2018
African Journal of Business Management
Measuring employee performance in Gweru and Kwekwe city councils in midlands province, Zimbabwe
For organizations to measure the performance of its employees there is a need to have key performance indicators and performance standards set. The current study at Gweru and Kwekwe City Councils in Zimbabwe assessed eight (8) performance aspects, which are quality work, employee output, communication and dependability (customer), controlling of costs (financial), planning, team working, problem solving and...
August 2018
African Journal of Business Management
Chinese Investment in Bangladeshi RMG Sector: Challenges and Opportunities
Ready Made Garments (RMG) sector is one of the most potential sectors of earning foreign capital to improve economic growth. Bangladesh is the great place for Chinese investors to invest in RMG sector as its export trend is increasing day by day. The main objective of this research paper was to find out opportunities and challenges of Chinese investment in Bangladesh. Data were collected from different secondary...
August 2018
Educational Research and Reviews
The examination of the link between academic and sports performance in competing rhythmic gymnasts in secondary school
This study, investigating whether sports has a positive impact on students’ academic life’ aims to compare the grade point averages of competing rhythmic gymnasts and 7th grade students not engaged in any branch of sports. The study was conducted with female secondary school students (n=80). The study group was divided into two: The first group (n=40) comprised top 40 rhythmic gymnasts (height:...
Page 7 of 1138, showing 50 records out of 56876 total, starting on record 301, ending on 350
