Articles

 

Articles

Page 8 of 1166, showing 50 records out of 58272 total, starting on record 351, ending on 400

May 2019

African Journal of Political Science and International Relations
The way-forward to make inter-governmental authority on development (IGAD) successful in actualizing a viable economic integration

Inter-governmental authority on development (IGAD) as a regional bloc is operating with a lot of impediments that delayed the organization from attaining greater economic integration. The objective of this study was to show the ways in which IGAD can actualize credible economic integration in the region, though the best is yet to come. Qualitative data collection approaches (interview and literature as primary and...

Author(s): Tewodros Woldearegay and Gosa Abera Mamo  

May 2019

International Journal of Library and Information Science
Pre-implementation failure of information systems in public universities in Kenya: A case study of Moi University, Kenya

Moi University was established in 1984 and its first decade of growth and expansion necessitated the adoption and utilisation of Information and Communication Technology (ICT) to manage information generated by its operations. Through Dutch Joint Financing Programme for Cooperation in Higher Education (MHO) and other donors’ assistance, it established an ICT centre charged with, among other functions, initiation...

Author(s): Harrison Bii and Monica Rukwaro  

May 2019

Journal of Horticulture and Forestry
Effects of light quality and photoperiod of light emitting LED on growth and biomass accumulation of shallot

In the present investigation, effects of light quality emitted by light emitting light emitting diodes (LED),  and selected photoperiods on the growth and biomass accumulation of shallot (Allium cepa var. aggregatum) have been studied. Two ratios of red and blue light namely, 2:1 and 1:1 and two photoperiods 16 h dark and 8 h light cycle and 12 h each alternating light and dark cycle were tested. The results showed...

Author(s): Yue Zhang, Xin Ran Wang and Jianjun Chen,  

May 2019

International Journal of Fisheries and Aquaculture
Bioeconomic analysis of Engraulicypris sardella (USIPA) in South east arm of Lake Malawi

Usipa Engraulicypris sardella is the most abundant small pelagic species in Lake Malawi. It plays an important part in the lake communities’ economy and food security. However, much remains unknown on their stock status and bioeconomic importance. This study is carried out to estimate the maximum economic yield and maximum sustainable yield for Usipa fishery in the South-east arm of Lake Malawi. Structured...

Author(s): Innocent Gumulira, Graham Forrester and Najih Lazar  

May 2019

African Journal of Food Science
Assessment of health risks associated with organochlorine pesticides levels in processed fish products from Lake Victoria

This study assessed the health risks of organochlorine pesticides in fish products from Lake Victoria. Nine organochlorine pesticides (α- Hexachlorocyclohexane (HCH), β- HCH, γ- HCH (Lindane), Hexachlorobenze (HCB), Dieldrin, p, pꞌ- DDE, α- endosulfan, Oxychlordane and α- chlordane) were identified at variable levels in fish products. Of the nine organochlorine pesticides which were...

Author(s): Alex Wenaty, Arvid Fromberg, Faith Mabiki, Bernard Chove, Anders Dalsgaard and Robinson Mdegela

May 2019

International Journal of Peace and Development Studies
Presenting natures, factors, and security implications of farmland related inter-household conflict in Northern Ethiopian Highlands of Wollo: Evidences from Jamma Woreda

The focus of this study is to investigate and analyze the different factors of inter-household conflicts over farmland. The study further sought to assess the human security implications on the community of the study area. It has been found that farmers in the study area are suffering from land-related conflicts and its associated impacts. Descriptive-case study was employed in the study. In-depth interviews with key...

Author(s): Mulugeta Tesfaye Teshome  

May 2019

International Journal of Physical Sciences
Multivariate statistical assessment and spatial distribution of groundwater contamination in Neke and its environs, South-Eastern Nigeria

Groundwater quality in Neke area of southeastern Nigeria was investigated applying multivariate statistical analyses using Statgraphics centurion XVII, ArcGIS 10.2.2 and Surfer 10 software on hydrochemical and bacteriological data from 25 groundwater samples over land cover of about 1283 km2 , in order to unravel the factors influencing ground water quality. From the correlation analysis, Ca2+, Mg2+, K+, and SO42-...

Author(s): Onwuka Solomon Obialo and Ezugwu Chimankpam Kenneth  

May 2019

African Journal of Agricultural Research
Market preferences for cowpea (Vigna unguiculata [L.] Walp) dry grain in Ghana

Cowpea is an important crop in Ghana, serving as a major source of calories and high-quality protein for many people. An understanding of market preferences is necessary when targeting research and breeding efforts. This study makes use of data from 562 samples of cowpea dry grain collected from 91 markets across Ghana, analyzed using the hedonic model framework, to determine implicit prices of characteristics,...

Author(s): Ira A. Herniter, Zhenyu Jia and Francis Kusi  

May 2019

African Journal of Agricultural Research
Rhizosphere yeast Torulaspora globosa with plant growth promotion traits and improvement of the development of tomato seedlings under greenhouse conditions

Yeasts are an interesting group of microorganisms, which occur naturally in soil and on plant surfaces. Few studies have analysed their potential as plant growth promoters. Thus, the aim of this study was to evaluate the indole acetic acid (IAA) production and phosphate solubilization by the yeasts Torulaspora globosa (CCA5S51 and CCA5S55), Meyerozyma guilliermondii (CCA3C98), and Rhodotorula mucilaginosa (CCA2F32), and...

Author(s): Thais Borges de Oliveira, Rodolfo Bizarria Junior, Luana Godoi Silva and Márcia Maria Rosa-Magri  

May 2019

African Journal of Agricultural Research
Physiological response of colza (Brassica napus L.) seeds coated and treated with alternative materials

The coated seeds have multiple advantages in relation to the common seeds. In addition to the increase in size and uniformity in their shape, treatment products can be incorporated in them helping the germination process. Against the foregoing, the objective of this work was to evaluate the physiological quality of the colza (Brassica napus L.) seeds coated with bentonite, gypsum and kaolin and treated with fungicide...

Author(s): Bruno Adelino de Melo, Francisco de Assis Cardoso Almeida, Josivanda Palmeira Gomes, Wilton Pereira da Silva, Inacia dos Santos Moreira, Yvana Maria Gomes dos Santos, Jemima Ferreira Lisboa, Polyana Barbosa da Silva, Semirames do Nascimento Silva and Dalmo Marcello de Brito Primo    

May 2019

African Journal of Agricultural Research
Interactive effects of phosphorus and water stress on plant development and yield resilience in common beans (Phaseolus vulgaris L.)

An experiment was conducted to determine the effects of increasing soil phosphorus under water stress conditions on yield and plant development in bean (Phaseolus vulgaris L.) genotypes with contrasting drought susceptibility tolerances. A split-split plot design with genotypes (main plot), two water regimes (split plot) and three phosphorus rates (split-split plot) was used. Water regimes were imposed by irrigating at...

Author(s): Mebelo MATAA#, Kephas MPHANDE# and Kalaluka MUNYINDA    

May 2019

Scientific Research and Essays
Assessments of drinking water supply quality at squatter and indigenous settlements of Bagmati River Corridors in Kathmandu

This study made an attempt to acquire information on water availability and assess the drinking water quality level of Bagmati river corridors. It identified the different modes of water supply sources and then examined drinking water quality in 37 squatters and 5 indigenous communities which consists 3693 households within Kathmandu Valley. To assess the state of drinking water quality at sources and points of use...

Author(s): Ram Kumar Phuyal, Rojita Maharjan, Rajesh Maharjan and Niranjan Devkota  

May 2019

African Journal of Biotechnology
Effect of 6-benzylaminopurine and α-naphthalene acetic acid hormonal supplements on the in vitro seed germination and seedling development of orchid Otochilus albus Lindl

Otochilus albus Lindl is one of the important orchids especially used for the horticultural purpose and commercial use. It is listed as a rare and critically endangered species in Nepal. An attempt to preserve the important orchids was done by establishing an efficient in vitro regeneration protocol using seed. This study was carried out by using Murashige and Skoog (MS) medium and the MS medium supplemented with growth...

Author(s): Hira Adhikari and Bijaya Pant  

May 2019

African Journal of Biotechnology
Enhancing 15N-uptake in maize (Zea mays L.) by native Trichoderma spp. strains in Central Mexico

A study was undertaken to evaluate the role of Trichoderma strains on 15N-uptake by maize under greenhouse and field conditions. The Trichoderma strains were isolated from different maize production systems in Guanajuato State, Central Mexico. A total of 39 Trichoderma isolates were obtained, 23 correspond to Trichoderma harzianum (Intra-Genic-Segment). Some colonized the endorhizosphere of maize better than others;...

Author(s): Vera-Núñez, J. A., Luna-Martínez, F., Barcos-Arias, M. S., Ávila-Miranda, M. E., Grageda-Cabrera, O. A. and Peña-Cabriales, J. J.  

May 2019

African Journal of Biotechnology
Capacity building for genetically modified organism (GMO) detection in West Africa: Identifying a circulating GMO maize variety in Mali

DNA-based methodology employing quantitative polymerase chain reaction (qPCR) has been successfully used to examine the incidence of genetically modified (GM) maize in Mali. This study aims to ascertain whether screening elements could also be used to detect GM maize. Fourteen maize varieties and one unknown dark color seeded variety from Mali were tested. DNA was extracted from three seeds of each variety. Three...

Author(s): Ibrahim Traoré, Diariatou Diagne, Ibrahim Keita, Hinda Doucouré, Mouhamadou Traoré, Niaba Témé, Mamadou Mory Coulibaly and Ousmane A. Koita  

May 2019

African Journal of Business Management
Shareholders’ return and value of manufacturing firms listed on the Nigerian stock exchange

The attainment of going concern concept of an entity relies heavily on its ability to maximize the wealth of its shareholders and value. The prospect of a firm to investors is a function of return, which signals to the market its good governance. The study examined the influence of shareholders’ return on the value of manufacturing firms listed on Nigerian Stock Exchange using annual reports and accounts of 36...

Author(s): OGUNDAJO Grace Oyeyemi, ENYI Patrick Enyi and OYEDOKUN Godwin Emmanuel

May 2019

African Journal of Business Management
The use of electronic monitoring and work performance of employees in the banking industry in Ibadan, Southwest Nigeria

Previous studies on electronic monitoring have not examined the relationship between electronic monitoring and work performance of employees. This study therefore examined the relationship between electronic monitoring and work performance using Bank XYZ branches in Ibadan, Oyo State as a reference point. Foucalt’s Panopticon and McGregor’s X and Y theories provided the theoretical framework. The research...

Author(s): Oyedeji Jonathan Kehinde and Emeka Emmanuel Okafor

May 2019

African Journal of Business Management
Impact of psychological contract fulfillment on micro-firm clerks: An empirical study in China

The psychological contract is an international academic focus in the field of organization behavior and human resources management. Despite a large number of literatures in the psychological contract from different types of organizations, there is still a lack of exploration involving the micro business sector. This study aims to fill some of the gaps and analyze the intimate relationship with the target of micro-firm...

Author(s): Zezhao Liu  

May 2019

African Journal of Microbiology Research
Antifungal susceptibility pattern and identification of Candida species in women of child-bearing age suffering from malaria, typhoid and diabetes in Nsukka, Nigeria

Candidiasis in women of child-bearing age is a major problem in most hospitals in Nigeria. High vaginal swabs were analyzed for Candida presence in women of child bearing age using Chromogenic agar. Isolated Candida spp. were analyzed phylogenetically to trace their evolutionary relatedness. Growth rate assay was done using Sabouruand and Dextrose medium supplemented with NaCl and glucose. The resistance pattern of the...

Author(s): Emmanuela I. Nwoko, Anthony C. Mgbeahuruike, Ejike E. Ugwuijem and Onwumere S. Idolor  

May 2019

Journal of Medicinal Plants Research
A review of Ginseng species in different regions as a multipurpose herb in traditional Chinese medicine, modern herbology and pharmacological science

Ginseng is the most famous of the Chinese herbs throughout the world, and has been one of the most valued herb in China. Traditional Chinese medicine as an essential element of alternative and complementary medicine, advanced over thousands of years with its own distinctive arrangement of therapies, diagnostics theories and in Asian countries, particularly China. In most parts of the world, especially western countries,...

Author(s): Mohamad Hesam Shahrajabian, Wenli Sun, and Qi Cheng,  

May 2019

Journal of Medicinal Plants Research
In vitro anti-inflammatory activity of ginger (Zingiber officinale Rosc.) rhizome, callus and callus treated with some elicitors

This study evaluated the effect of ginger rhizome and its callus as well as callus elicited by yeast extract, glycine and salicylic acid on the production of pro-inflammatory (TNF-α, IL-1 and IL-6) and anti-inflammatory (IL-10 and TGF-β) cytokines in vitro. Petroleum ether (PE) and chloroform; methanol (1:1) (CM) extracts of rhizome and callus were shown to significantly (P < 0.05) suppress in a...

Author(s): Ammar Mohammed Ahmed Ali, Mawahib ElAmin Mohamed El-Nour, Owais Mohammad and Sakina Mohamed Yagi  

May 2019

Journal of Medicinal Plants Research
Antihistaminic action of Melaleuca armillaris ointment

Melaleuca oil has great medicinal properties. The objective is to develop a product based on Melaleuca armillaris to evaluate its antihistaminic action and to compare the antihistaminic effect and protective effect of M. armillaris oil and ointment. Pruritus intensity was assessed at sensitization points. Eighty volunteers, aged between 21 and 60 years (male and female) participated in the study, without...

Author(s): Kassandra Elfrida Pauliello, Diba Maria Sebba Tosta Souza, Marcos Mesquita Filho, Manoel Araújo Teixeira and Adriana Rodrigues dos Anjos Mendonça  

May 2019

Educational Research and Reviews
Effect of piano education on the attention skills of 7-12 year old children

This research is aimed to determine the effects of piano education on the attention skills of 7-12-year-old children. In the research, pretest-posttest control group design is used, and attention skills of both of the groups are measured before and after the experiment. Unlike the control group (n=53), the experimental group (n=46) had private piano education an hour a week for 14 weeks with a tutor, and as a result of...

Author(s): Elnara Huseynova, Hatice Onuray Egilmez and Doruk Engur  

May 2019

Educational Research and Reviews
Finnish principals: Leadership training and views on distributed leadership

This study looks at the views of Finnish comprehensive school principals on distributed leadership and presents discussion on the leadership training required by principals and looks at it in relation to the views of principals. In Finland the qualification requirements for principals are based on their experience as teachers, and studies in educational administration. In general, studies in leadership are not...

Author(s): Tapio Juhani Lahtero, Raisa Susanna Ahtiainen and Niina Lång  

May 2019

Educational Research and Reviews
Elementary teachers’ perceptions of preparedness to teach English Language Learners

With the steady increase in the English Language Learner (ELL) population in the U.S., this case study was aimed at capturing elementary teachers’ perceptions of how well their teacher preparation program was prepared to teach ELLs. This work utilized the case study design, and included five North American elementary teachers as the subjects of the research who were teaching ELLs in a small Christian Academy...

Author(s): Barbara Wissink and Suzanne Starks  

May 2019

Educational Research and Reviews
Grit, growth mindset and participation in competitive policy debate: Evidence from the Chicago Debate League

Non-cognitive skills (NCS) contribute to variation in how students respond to challenges inside the classroom and beyond. Competitive policy debate is a co-curricular activity that both encourages cooperative learning and is hypothesized to promote NCS. The goal of this pilot was to examine the relationship between debate participation and change in four NCS among high school students over the course of an academic...

Author(s): Viktoryia Alexandrovna Kalesnikava, Gregory Paul Ekey, Tomohiro M. Ko, Daniel T. Shackelford and Briana Mezuk

May 2019

African Journal of Agricultural Research
Improving agricultural productivity on salt-affected soils in Ethiopia: Farmers’ perceptions and proposals

This paper presents the results of a baseline study carried out to understand farmers’ perceptions about the existence of salinity in their farmlands and its impact on agricultural production and household food security. The strategies adopted by farmers to deal with the salinity and food insecurity problems are also discussed. The survey data were collected from a total of 300 farmers from five districts of...

Author(s): Asad S. Qureshi, Mulugeta Mohammed, Ashenafi W. Daba, Birhanu Hailu, Getinet Belay, Abeba Tesfaye and Tesfaye M. Ertebo  

May 2019

African Journal of Agricultural Research
Identification of 1-decyne as a new volatile allele-chemical in baobab (Adansonia digitata) from Sudan

Leaf, fruit, wood, and gum of fifty-five plants collected in Sudan were evaluated by Dish pack method for their allelopathic activity through volatile chemicals using lettuce (Lactuca sativa) as a receptor plant. Several potential plants with high allelopathic activity, such as Terminalia brownie, Euphorbia hirta, Diospyros mespiliformis, Corchorus olitorius, Adansonia digitata, Hibiscus sabdariffa, were determined....

Author(s): Hala Sad Alla Maliek Elmadni, Maryia Mishyna, and Yoshiharu Fujii,    

May 2019

African Journal of Agricultural Research
Production performance of sunflower genotypes in Campo Novo do Parecis, Brazil´s main producing region of the oleaginous plant

Sunflower crops have a wide adaptability to several edaphoclimatic conditions, with possible alternative for a second harvest. Crops are diversified and extra profit is collected by the producer. Current assay determines the agronomic characteristics of the sunflower genotype planted in second harvest in Campo Novo do Parecis MT Brazil, the main sunflower producing region in Brazil. The assay was conducted on the...

Author(s): Flávio Carlos Dalchiavon, Anderson Morais Kimecz, Marcelo Marchesini, Diego Hahn Machado, Wellington Junior Candido da Silva, Rosivaldo Hiolanda and Claudio Guilherme Portela de Carvalho  

May 2019

African Journal of Agricultural Research
Construction and evaluation of soybeans thresher

In order to resuscitate soybean production and post-harvest processing, especially in terms of threshing, there is a need to develop an affordable threshing machine, which will reduce drudgery associated with manual soybean threshing. Soybean thresher was fabricated and evaluated at the Institute of Agricultural Research and Training (IAR&T), Apata, Ibadan. The machine component parts includes: hopper, threshing...

Author(s): Adeyeye O. A., Sadiku E. R., Osholana T. S., Reddy A. B., Olayinka A. O., Ndamase A. S., Makgatho G., Selvam P., Perumal A. B., Nambiar R. B., Fasiku V. O., Ibrahim I. D. and Areo K. A.  

May 2019

African Journal of Biotechnology
Alginate microporous beads promote higher ethanol productivity than the normal beads in a repeated-batch ethanolic process involving Saccharomyces cerevisiae LC 269108

Mass transfers pose significant challenge in fermentation due to wide diffusion gradient existing between the culture broth and the immobilized cells. In the present study, Saccharomyces cerevisiae LC 269108 was immobilized in a recently described microporous alginate beads. The new method was compared with the conventional calcium alginate gel beads in a repeated batch process for the production of ethanol. The...

Author(s): Charles O. Nwuche, Victor C. Igbokwe and Chukwudi O. Onwosi

May 2019

African Journal of Biotechnology
Quantitative trait loci (QTL) mapping for intermittent drought tolerance in BRB 191 × SEQ 1027 Andean Intra-gene cross recombinant inbred line population of common bean (Phaseolus vulgaris L.).

Drought is a major constraint of common bean (Phaseolus vulgaris L.) production in Uganda where irrigation for the crop is very uncommon. This study aimed to identify quantitative trait loci (QTLs) underlying drought tolerance in 128 F5 RILs derived from an Andean intra-gene cross between drought-tolerant SEQ 1027 and BRB 191. Eighteen traits were evaluated under drought stress and non-stress conditions in the field for...

Author(s): M. Nabateregga, C. Mukankusi, B. Raatz, R. Edema, S. Nkalubo and B. M. E. Alladassi

May 2019

African Journal of Biotechnology
Chemical study of Peganum harmala seeds

Peganum harmala belongs to the family Zygophyllaceae and is popularly known as "Arruda of Syria". It presents a broad therapeutic potential, highlighting the anti inflammatory, anticancer, analgesic, antiseptic and antibacterial activities. It is used in the preparation of religious rituals beverages with effects on the central nervous system as an inhibitor of the enzyme monoaminoxidase, whose action is due...

Author(s): Isabela Araujo e Amariz, Jacyara Pereira da Silva, Emanuella Chiara Valença Pereira, Nathália Andrezza Carvalho de Souza, José Marcos Teixeira de Alencar Filho, Renan Nunes Pereira, Ana Paula de Oliveira and Larissa Araújo Rolim

May 2019

African Journal of Pharmacy and Pharmacology
Flavonoids in neuropathic pain management: A new player on an old target

Neuropathic pain is the consequence of abnormal processing in the peripheral or central nervous system (CNS) elicited by neuronal injury. Due to its heterogeneous nature and important unwanted adverse effects of the commonly prescribed psychoactive drugs like benzodiazepines (BDZ), the treatment of neuropathic pain has remained a challenge for the scientific community. Flavonoids initially isolated from plants and used...

Author(s): Shehla Akbar  

May 2019

African Journal of Pharmacy and Pharmacology
Effects of anti-hyperglicemic of yacon leaf (Smallanthus sonchifolius) ethanolic extracts using zebrafish as a model

This study aims to investigate the anti-hyperglicemic effects of yacon leaf (Smallanthus sonchifolius) using zebrafish. In this study, zebrafish is used as a model, with alloxan compounds to induce hyperglicemic. The induction stage consists of 3 phases: in the first the zebra was induced at 0.3% for 30 min, in the second stage, it was transferred to a 3% D-glucose solution for 30 min, and in the last, immersion was...

Author(s): Zuhelmi Aziz, Nanda Tamara, Rahmi Three Wahyuni, Inawati and Syamsudin Abdillah  

May 2019

African Journal of Microbiology Research
Parents’ knowledge and attitude toward antibiotic misuse in children with upper respiratory tract infections in the Western region of Saudi Arabia

Misuse of antibiotics in children is a major public health problem which may lead to increase antibiotic resistance in paediatric population. This study aims to evaluate parents’ knowledge and attitude toward antibiotic use in children with upper respiratory tract infections (URTIs) in the Western region of Saudi Arabia. A cross-sectional study was conducted using self-administered questionnaire on parents of...

Author(s): Shadi Ahmed Zakai  

May 2019

International Journal of Physical Sciences
Magneto-Stark effect on exciton in parabolic bandGaAs/〖Ga〗_(0.7) 〖Al〗_(0.3) As quantum well heterostructure

The effect of applied crossed electric and magnetic fields on the heterostructure semiconductor is used in the scientific investigation on electronic and optical exciton properties. The aim of this work is to study the magneto-Stark effect for confined excitons in single GaAs-〖Ga〗_(0.7) 〖Al〗_(0.3) As QWs. The magnetic field B is taken as perpendicular to the z-growth direction of the heterostructure, whereas the applied...

Author(s): Alemu Gurmessa and Menberu Mengesha  

May 2019

African Journal of Agricultural Research
Effects of seeds ingestion by Lagune cattle and other pre-planting treatments on the germinability of Centrosema pubescens Benth seeds in Soudanian region of Benin (West Africa)

In Benin under extensive management of grassland, there is little information about legumes regeneration and management in pastures. This trial evaluated the germination of Centrosema pubescens seeds after passage through the digestive tract of three young bulls and three heifers of Lagune breed cattle. Following seeds ingestion by cattle, total faeces were collected at 24-h intervals for 6 days after which time the...

Author(s): HOUNDJO Daniel Bignon Maxime, ADJOLOHOUN Sébastien, ADENILE Dourossimi Adam, GBENOU Basile, SAIDOU Aliou, AHOTON Léonard, HOUINATO Marcel, SEIBOU TOLEBA Soumanou and SINSIN Brice Augustin  

May 2019

African Journal of Agricultural Research
Verification of integrated management of chickpea Fusarium wilt (Fusarium oxysporum f.sp. ciceris) in major chickpea growing areas of East Shewa Zone, Ethiopia

Fusarium wilt is caused by Fusarium oxysporum f.sp. ciceris, a major limiting chickpea productivity in Ethiopia. The present study was to validate the integrated management of chickpea Fusarium wilt. The verifications were conducted in Adea, Lume and Gimbichu districts. The experiment was laid out as a factorial combination a farmer’s field was used as replications. The management package consists of two varieties...

Author(s): Asrat Zewdie  

May 2019

African Journal of Agricultural Research
Foliar application of zinc sulphate to improve yield and grain zinc content in wheat (Triticum aestivum L.)

Foliar application is a promising agronomic strategy as it involves direct adsorption and loading of nutrients from leaf surface to phloem in comparatively far less quantity than soil applications. Present investigation entails the evaluation of most suitable treatment of zinc sulphate to improve growth and yield components of wheat. Significant increase in leaf length, leaf area, plant height, number of tillers, spike...

Author(s): Shehla Noreen and Atif Kamran  

May 2019

African Journal of Agricultural Research
Short-term effect of reducing conventional tillage intensity on some physical and chemical properties of volcanic soils in Rwanda

Volcanic soils which comprise a minor portion worldwide are generally characterized by their high natural fertility yet susceptible to soil erosion due to their fragility. Regardless of which, the success in soil management to maintain its quality depends on the understanding of how the soil properties respond to its disturbance through tillage practices over time. This study was conducted in the highland region of...

Author(s): Ernest Uwiringiyimana,, Didier Ngabonziza, Hamudu Rukangantambara and Zhang Dan  

May 2019

African Journal of Agricultural Research
Production components and water efficiency of upland cotton cultivars under water deficit strategies

The objective of this work was to study water deficits effect on different phenological phases in the production components and water efficiency of upland cotton cultivars. For this, an experiment was carried out at the Federal University of Campina Grande - UFCG, Pombal county Campus, Paraíba State, Brazil. Treatments were formed from a split-plot arrangement in which plots were 6 water deficit periods (P): (P1...

Author(s): Whéllyson Pereira Araújo, José Rodrigues Pereira, João Henrique Zonta, Hugo Orlando Carvallo Guerra, Mailson Araújo Cordão and Robson Felipe de Lima  

May 2019

African Journal of Biotechnology
Establishment of a transformation protocol for Uganda’s yellow passion fruit using the GUS gene

Horticulture is one of the fastest growing sectors in Uganda, exporting products worth US$100 million annually. Passion fruit (Passiflora edulis) growing and export is one of the critical contributors to this sector employing over a million farmers. However, a number of biotic and abiotic constraints have initiated widespread enterprise abandonment by farmers. Passiflora improvement efforts by conventional breeding has...

Author(s): Samuel Tuhaise, Jesca L. Nakavuma, John Adriko, Kenneth Ssekatawa, and Andrew Kiggundu,  

May 2019

African Journal of Biotechnology
Dehairing of animal hides and skins by alkaline proteases of Aspergillus oryzae for efficient processing to leather products in Tanzania

The leather industry is one among the most vital sectors for economic development contributing to high earnings. However, tanning of hides and skins is constrained by primitive technology and the use of hazardous chemicals that contribute to environmental pollution. This study was conducted to evaluate the efficacy of alkaline protease on dehairing animal hides and skins under different conditions. Alkaline protease was...

Author(s): Never Zekeya, Cecilia China, Suleimain Mbwana and Madundo Mtambo

May 2019

African Journal of Biotechnology
Exploring the nutritional efficiency of genotypes of Coffea arabica L. from different parental lineages in contrasting environments for N availability

The different responses of improved genotypes to alterations of the availability of nutrients indicate that it is possible to modulate the nutritional efficiency by exploring the interaction between the intrinsic response of a genotype and the level of nutrient supply. The objective of this research was to assess the response of genotypes of Coffea arabica L., from different parental lineages, to contrasting...

Author(s): Lima Deleon Martins, Daniel Soares Ferreira, Wagner Nunes Rodrigues, Tafarel Victor Colodetti, Sebastião Batista Brinate, Adan Dezan Côgo, Vanessa Maria de Souza Barros, Fábio Luiz Partelli, José Francisco Teixeira do Amaral and Marcelo Antonio Tomaz  

May 2019

African Journal of Microbiology Research
Evaluation of brewing potentials of grains, malts and worts of some sweet sorghum and sorghum varieties

Little or no attention has so far been paid to using sweet sorghum malt for commercial beer brewing. Thus, three sweet sorghum varieties (SSV) and four sorghum varieties (SV) were analyzed for brewing quality. Variations were observed in their thousand grain weights (22.8 to 58.7 g), grain moisture contents (12.5 to 20.5%), germination energies (99.0 to 100%) and germination capacities (99.7 to 100%). After 4-day...

Author(s): Owuama, Chikezie I.  

May 2019

Scientific Research and Essays
Principal air pollutants and their effects on athletes’ health and performance: A critical review

The aim of this review was to assess the health effects of the criteria air pollutants: Sulfur dioxide (SO2), carbon oxides (COX), nitrogen dioxide (NO2), particulate matter (PM) and ozone (O3) together with photochemical smog and global warming in relation to exercise with particular focus on athletes. In this review, respiratory and cardiovascular health impacts of the specified principal air pollutants have been...

Author(s): Gashaw Tesema Tsegaw and Yitayal Addis Alemayehu  

May 2019

African Journal of Business Management
Board gender diversity, non-executive director’s composition and corporate performance: evidence from listed firms in Nigeria

This paper examined the nexus between board gender diversity, non-executive director’s composition and corporate performance (return on asset) of listed firms on the Nigerian Stock Exchange. Ex-post facto research design was employed and agency theory formed the basis of theoretical framework of the study. Data of board gender diversity, non-executive director’s composition and return on asset were obtained...

Author(s): Imade, Osazee Graham  

May 2019

African Journal of Business Management
Determinants of financial performance in private banks: A case in Ethiopia

The objective of this study is to empirically assess the effect of bank-specific and macroeconomic determinants of Ethiopian private commercial banks financial performance using three measures namely, return on assets (ROA), return on equity (ROE) and economic value added (EVA) for the period 2006 to 2015 by using multiple regression on a sample of seven private commercial banks. The results indicated that performance...

Author(s): Tewodros Biset Amene and Gedion Abayneh Alemu

May 2019

African Journal of Business Management
The influence of internal marketing and job satisfaction on quality service delivery in a public health sector: A case study of a local government organization in Uganda

The major objective of this study is to examine the combined influence of internal marketing and job satisfaction on quality health service delivery in Greater Iganga Local Government. A case study research strategy is used in which data are collected using self-administered questionnaire administered to 635 respondents. A sample of 127 health centres was drawn from a population of 205 health facilities from the...

Author(s): Gordon Otieno Ong’unya, John Baptist Kowa, Aziz Wakibi  and Kassim Ssenyange

Page 8 of 1166, showing 50 records out of 58272 total, starting on record 351, ending on 400