Search

Search results for

We found 49 results for you
  1. AN AXIOMATIC APPROACH TO CATEGORIES OF TOPOLOGICAL ALGEBRAS

    AN AXIOMATIC APPROACH TO CATEGORIES OF TOPOLOGICAL ALGEBRAS

    Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: TempleH. Fay --- ,
    Consider a commuting square of functors TV = GU where G is an algebraic functor over sets (in the sense of Herrlich), and T and U are (regular epi, monosource)—topological and fibre small. Such a square is called a Topological...
  2. A Characterization of Tensor—Induced Preradicals in Abelian Groups

    A Characterization of Tensor—Induced Preradicals in Abelian Groups

    Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: TempleH. Fay --- Department of Mathematics, EdwinP. Oxford --- Department of Mathematics, GaryL. Walls --- Department of Mathematics,
    Let G be an abelian group and g ε G; for an abelian group A, define TA = {a ε A: g⊗a=0 in G⊗A}. T is called the tensor-induced preradical determined by the pair (G,g). In this work a complete...
  3. BIVARIANT LONG EXACT SEQUENCES I

    BIVARIANT LONG EXACT SEQUENCES I

    Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: TempleH Fay --- Department of Mathematics, USA KeithA Hardie --- Department of Mathematics, R S A
    Given a pair of short exact sequences
  4. COTORSION MODULES AND PROJECTIVE DIMENSION ONE

    COTORSION MODULES AND PROJECTIVE DIMENSION ONE

    Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: TempleH. Fay --- , U.S.A.
    If T is a perfect torsion theory for a category of modules over a commutative ring R, a module C is called T—cotorsion provided HomR(QT,C) = 0 = ExtR (QT,C) where QT denotes the T-injective hull of R. Motivated by...
  5. COMPLETIONS AND CATEGORICAL COMPACTNESS FOR NILPOTENT GROUPS

    COMPLETIONS AND CATEGORICAL COMPACTNESS FOR NILPOTENT GROUPS

    Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: TempleH. Fay --- , Republic of South Africa GaryL. Walls --- , USA
    We consider reflection functors in the category of nilpotent groups satisfying certain exactness properties for which the Mal'cev completion functor and the p-cotorsion completion functors are prototypical examples. Each of these functors defines a generalized torsion theory, which in turn...
  6. Media ownership and news framing: an analysis of HIV/AIDS coverage by Ugandan press

    Media ownership and news framing: an analysis of HIV/AIDS coverage by Ugandan press

    Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: James Kiwanuka-Tondo --- Department of Communication, United States KellyF Albada --- Department of Communication, United States Fay Cobb Payton --- Department of Communication, United States
    Applying framing theory, the present research analyzes trends in Ugandan news coverage and the prominent issue frames for HIV/AIDS-related stories. In order to determine the influence of other factors, such as media ownership and journalist origin, nearly 800 articles, from...
  7. Academic Interaction with Social Partners: Investigating the contribution of universities to economic and social development

    Academic Interaction with Social Partners: Investigating the contribution of universities to economic and social development

    Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Fayaz Ahmad Sheikh --- Centre for Studies in Science Policy, India Imtiyaz Ahmad Bhat --- , India
  8. Models for estimation of carbon sequestered by <em>Cupressus lusitanica</em> plantation stands at Wondo Genet, Ethiopia

    Models for estimation of carbon sequestered by Cupressus lusitanica plantation stands at Wondo Genet, Ethiopia

    Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Leakemariam Berhe --- , Ethiopia Genene Assefa --- Wondo Genet College of Forestry and Natural Resources, Ethiopia Tesfay Teklay --- Wondo Genet College of Forestry and Natural Resources, Ethiopia
    This study compared models for estimating carbon sequestered aboveground in Cupressus lusitanica plantation stands at Wondo Genet College of Forestry and Natural Resources, Ethiopia. Relationships of carbon storage with tree component and stand age were also investigated. Thirty trees of...
  9. Exploring informal sector community innovations and knowledge appropriation: A study of Kashmiri pashmina shawls

    Exploring informal sector community innovations and knowledge appropriation: A study of Kashmiri pashmina shawls

    Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Fayaz Ahmad Sheikh --- Centre for Studies in Science Policy, School of Social Sciences, India
    The informal sector has become an increasingly popular subject of study. This sector has been a prominent feature of the development landscape of many countries around the globe. It is increasingly becoming the major source of employment in third world...
  10. Mass Flourishing: How Grassroots Innovation Created Jobs, Challenge and Change

    Mass Flourishing: How Grassroots Innovation Created Jobs, Challenge and Change

    Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Fayaz Ahmad Sheikh --- PhD student, Centre for Studies in Science Policy, India
  11. People's History of Science: Miners, Midwives, and ‘Low Mechanicks’

    People's History of Science: Miners, Midwives, and ‘Low Mechanicks’

    Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Sheikh Fayaz Ahmad --- Centre for Studies in Science Policy, India
  12. Silvopastoral system based on <em>Ficus thonningii</em>: an adaptation to climate change in northern Ethiopia

    Silvopastoral system based on Ficus thonningii: an adaptation to climate change in northern Ethiopia

    Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Mulubrhan Balehegn --- Animal Rangeland and Wildlife Sciences, Ethiopia Lars O Eik --- Department of International Environment and Development Studies, Ås, Norway Yayneshet Tesfay --- International Livestock Research Institute (ILRI), Ethiopia
    This study in northern Ethiopia investigated local people's perception of climate change and the role of indigenous silvopastoralism in adaptation to that change. Two hundred and forty respondents participated in a questionnaire survey and group discussions. Local communities perceive climate...
  13. Metropolitan nomads: a journey through Jo’burg’s “little Mogadishu”

    Metropolitan nomads: a journey through Jo’burg’s “little Mogadishu”

    Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Nereida Ripero-Muñiz --- Modern Languages, School of Literature, Language and Media, South Africa Salym Fayad --- , South Africa
    Mayfair, a Johannesburg suburb, is a place where the lives of hundreds of Somalis intersect: a space of opportunity for some, a place of refuge for others, and a home away from home for the Somali diaspora in the city...
  14. Effect of integrated soil bunds on key soil properties and soil carbon stock in semi-arid areas of northern Ethiopia

    Effect of integrated soil bunds on key soil properties and soil carbon stock in semi-arid areas of northern Ethiopia

    Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Birhane Tadesse --- Natural Resource Management, Bureau of Agriculture and Rural Development, Ethiopia Shimbahri Mesfin --- Department of Land Resource Management and Environmental Protection, Ethiopia Girmay Tesfay --- Department of Natural Resource Economics and Management, Ethiopia Fetien Abay --- Department of Dryland Crop and Horticultural Science, Ethiopia
    Land degradation is a serious global problem. To reclaim degraded land, many soil bunds have been implemented. However, their effectiveness has not been studied in all regions of Ethiopia. The objective of this study was to investigate the effect of...
  15. Model for cutting force prediction in high precision single-point diamond turning of optical silicon

    Model for cutting force prediction in high precision single-point diamond turning of optical silicon

    Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: M. K. O. Ayomoh --- Mechatronics Engineering Department, South Africa K. A. Abou-El-Hossein --- Mechatronics Engineering Department, South Africa O. A. Olufayo --- Mechatronics Engineering Department, South Africa
    This paper presents a mathematical model predicated on a finite series convergent scheme and derivative functions of multi-variants obtained from a cutting force constitutive equation for onward prediction of the maximum cutting force at the tip of a single-point diamond...
  16. Poor Economics: A Radical Rethinking of the Way to Fight Global Poverty

    Poor Economics: A Radical Rethinking of the Way to Fight Global Poverty

    Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Fayaz Ahmad Sheikh --- Centre for Study of Science Policy, India
  17. Land use change and its drivers in Kurt Bahir wetland, north-western Ethiopia

    Land use change and its drivers in Kurt Bahir wetland, north-western Ethiopia

    Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: G Shewit --- Bahir Dar University, College of Agriculture and Environmental Sciences, Ethiopia M Minwyelet --- Bahir Dar University, College of Agriculture and Environmental Sciences, Ethiopia M Tesfaye --- Bahir Dar University, College of Agriculture and Environmental Sciences, Ethiopia T Lewoye --- Bahir Dar University, College of Agriculture and Environmental Sciences, Ethiopia M Ferehiwot --- Bahir Dar University, College of Agriculture and Environmental Sciences, Ethiopia
    The effects of land-use change on ecosystem services in Kurt Bahir wetland were investigated during 2013 to 2014 using LANDSAT satellite images from 1973, 1986, 2002 and 2013 to identify and map changes in land-use classes over time. To understand...
  18. Nor-epinephrine versus vasopressin infusion for prevention of spinal-induced hypotension: a placebo-controlled study

    Nor-epinephrine versus vasopressin infusion for prevention of spinal-induced hypotension: a placebo-controlled study

    Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: Ahmed Abdalla Mohamed --- Department of Anesthesia & ICU and Pain Clinic, Egypt Tamer Fayez Safan --- Department of Anesthesia & ICU and Pain Clinic, Egypt
    Objectives: To evaluate the prophylactic effect of norepinephrine (NE) and vasopressin (VP) infusion on frequency and severity of spinal anaesthesia-induced hypotension (SAIH).
  19. Selection of drought-tolerant tef (<em>Eragrostis tef</em>) genotypes using drought tolerance indices

    Selection of drought-tolerant tef (Eragrostis tef) genotypes using drought tolerance indices

    Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Mizan Tesfay Abraha --- African Centre for Crop Improvement, South Africa Hussein A Shimelis --- African Centre for Crop Improvement, South Africa Mark D Laing --- African Centre for Crop Improvement, South Africa Kebebew Assefa --- Debre-Zeit Agricultural Research Centre, Ethiopia
    Drought stress is one of the major abiotic constraints affecting production and productivity of tef (Eragrostis tef). Genetic resources and selection methodologies are among the prerequisites to improve the efficiency of breeding for drought tolerance. The objectives of this study...
  20. Response of soybean to <em>Bradyrhizobium japonicum</em> inoculation and phosphorus application under intercropping in the Central Rift Valley of Ethiopia

    Response of soybean to Bradyrhizobium japonicum inoculation and phosphorus application under intercropping in the Central Rift Valley of Ethiopia

    Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Tesfaye Fituma --- Research and Development Center, Ethiopian Sugar Corporation, Ethiopia Tamado Tana --- College of Agricultural and Environmental Sciences, Ethiopia Anteneh Argaw Alemneh --- Natural Resource Management and Environmental Sciences, Ethiopia
    Effective nodulation by legumes requires balanced availability of phosphorus (P); however, maximum responses to P can be obtained only when adequate mineral nitrogen or superior symbiotic systems are available. Hence, a field experiment was conducted at Metahara Sugar Estate under...
  21. Conceptions of love in Ghana: An exploration among Ghanaian Christians

    Conceptions of love in Ghana: An exploration among Ghanaian Christians

    Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Annabella Osei-Tutu --- Department of Psychology, Ghana Vivian A. Dzokoto --- Department of African American Studies, USA Katja Hanke --- Survey Design and Methodology, Germany Glenn Adams --- Department of Psychology, USA Faye Z. Belgrave --- Department of Health Psychology, USA
    We explored conceptions of love from the perspective of Ghanaian Christians. Using an ethnographic approach, we interviewed 61 participants (males = 39; females = 22; age range 20 to 70) on their understanding and experiences of love in the context...
  22. Maize grain soluble sugar and protein contents in response to simulated hail damage

    Maize grain soluble sugar and protein contents in response to simulated hail damage

    Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Silindile P Miya --- Crop Science, School of Agricultural, Earth and Environmental Sciences, South Africa Albert T Modi --- Crop Science, School of Agricultural, Earth and Environmental Sciences, South Africa Samson Z Tesfay --- Crop Science, School of Agricultural, Earth and Environmental Sciences, South Africa Tafadzwanashe Mabhaudhi --- Crop Science, School of Agricultural, Earth and Environmental Sciences, South Africa
    Production of grain of high nutritional quality is essential in maize (Zea mays L.) as a food grain crop. Grain quality may be influenced by environmental and management factors, such as hail, plant density and grain selection. A study was...
  23. Afro-communal virtue ethic as a foundation for environmental sustainability in Africa and beyond

    Afro-communal virtue ethic as a foundation for environmental sustainability in Africa and beyond

    Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Olusegun Steven Samuel --- Department of Philosophy, Australia Ademola Kazeem Fayemi --- Department of Philosophy, South Africa
    This paper addresses the question: Can an Afro-communal virtue ethic provide a plausible foundation for environmental sustainability? Drawing on Thaddeus Metz’s perspective and contributions to the Afro-communal ethic tradition, this paper examines the extent to which his proposal provides plausible...
  24. Variations in heavy metal concentrations among trophic levels of the food webs in two agroecosystems

    Variations in heavy metal concentrations among trophic levels of the food webs in two agroecosystems

    Item type: Journal Article • Journal: African Zoology • Authors: Mustafa Soliman --- Entomology Department, Egypt Mohamed El-Shazly --- Entomology Department, Egypt Emtithal Abd-El-Samie --- Entomology Department, Egypt Hamed Fayed --- Zoology Department, Egypt
    Excessive accumulation of trace metal in soil represents a growing environmental problem posing severe risks to biota, humans and ecosystems. Concentrations of Cd, Pb, Cu and Zn were determined in soil, as well as in representatives of some trophic levels...
  25. INTRODUCTION: Importance of methodological diversity for innovation system studies

    INTRODUCTION: Importance of methodological diversity for innovation system studies

    Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Mika Raunio --- Senior Researcher, Migration Institute of Finland, Turku/Seinäjoki, Finland Academic Coordinator of Globelics Academy Tampere, at Research Center for Knowledge, Science, Technology and Innovation Studies (TaSTI), Finland Rhiannon Pugh --- Centre for Urban and Regional Studies, Orebro University, Sweden and Department of Social and Economic Geography, Sweden Fayaz Ahmad Sheikh --- The Center for Studies in Science Policy, India Abiodun Egbetokun --- National Center for Technology Management, Nigeria
  26. Undervaluation of informal sector innovations: Making a case for revisiting methodology

    Undervaluation of informal sector innovations: Making a case for revisiting methodology

    Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Fayaz Ahmad Sheikh --- Centre for Studies in Science Policy, India
    The informal economy is emerging as a new normal. It is distinctively pervasive both in the Global South and the North. Of late, scholarship in development economics has captured its knowledge component. Yet, the focus of innovation studies is exclusively...
  27. Tradition and innovation: Between dynamics and tensions

    Tradition and innovation: Between dynamics and tensions

    Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Maria de Fátima Ferreiro --- ISCTE-IUL, Dinamia’CET-IUL, Portugal Fayaz Ahmad Sheikh --- Centre for Studies in Science Policy (CSSP), India Merli Reidolf --- Tallin University of Technology, Estonia Cristina de Sousa --- Univ Portucalense, Research on Economics, Management and Information Technologies - REMIT & Dinamia’CET-IUL, Portugal Saradindu Bhaduri --- Centre for Studies in Science Policy (CSSP), India
    Tradition is certainly not new to the domain of innovation research. However, the interplay between the two has attracted less nuanced attention than it should have. Drawing on institutional theory, the purpose of this paper is to explore the dynamics...
  28. Teaching ancient African philosophy

    Teaching ancient African philosophy

    Item type: Journal Article • Journal: South African Journal of Philosophy • Authors: Ademola Kazeem Fayemi --- Department of Philosophy, South Africa
    In this article, I critically examine the pedagogical problems in the teaching of ancient history of African philosophy in continental and diaspora Africa. I argue that the teaching of ancient history of African philosophy poses ab initio some peculiar problems...
  29. Innovation and entrepreneurship framework within the Middle East and North Africa region

    Innovation and entrepreneurship framework within the Middle East and North Africa region

    Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Abdelkader Mazouz --- College of Business, Al Ain University of Science and Technology, UAE Loay Alnaji --- Computer Science Department, Moorpark College, Moorpark, USA Riadh Jeljeli --- College of Business, Al Ain University of Science and Technology, UAE Fayez Al-Shdaifat --- College of Business, Al Ain University of Science and Technology, UAE
    When linked, Innovation, Entrepreneurship and Leadership provide a platform for Organizational survival. This paper develops a framework for innovation – a necessary condition that requires the appropriate leadership in order to guide its course in the right direction. Innovation Proficiency...
  30. Phytochemical profiling and soluble sugars of African ginger (<em>Siphonochilus aethiopicus</em>) from different growing regions in South Africa

    Phytochemical profiling and soluble sugars of African ginger (Siphonochilus aethiopicus) from different growing regions in South Africa

    Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Salmina N Mokgehle --- Horticultural Science, School of Agricultural, Earth and Environmental Sciences, South Africa Samson Z Tesfay --- Horticultural Science, School of Agricultural, Earth and Environmental Sciences, South Africa Manaka J Makgato --- Agricultural Research Council–Vegetable and Ornamental Plants, South Africa Hintsa T Araya --- Agricultural Research Council–Vegetable and Ornamental Plants, South Africa
    African ginger (Siphonochilus aethiopicus) is distributed in different regions of South Africa and contains bioactive constituents that provide health benefits. However, there is limited information describing the phytochemical and soluble sugars in different parts of the plant from different regions...
  31. Calibration and validation of APSIM–Maize, DSSAT CERES–Maize and AquaCrop models for Ethiopian tropical environments

    Calibration and validation of APSIM–Maize, DSSAT CERES–Maize and AquaCrop models for Ethiopian tropical environments

    Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Hirut Getachew Feleke --- , South Africa MJ Savage --- , South Africa Kindie Tesfaye --- , Ethiopia
    Process-based crop models are popular tools to quantify the impact of changes due to climate or crop management. Accurate simulation of crop production for different agro-ecological conditions using an individual crop model remains challenging due to different sources of uncertainty...
  32. Undergraduate hospitality students’ perceptions of careers in the industry: The Ghanaian context

    Undergraduate hospitality students’ perceptions of careers in the industry: The Ghanaian context

    Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Grace Anthony --- , Ghana Ishmael Mensah --- , Ghana Eunice Fay Amissah --- , Ghana
    The study examined undergraduate students’ perceptions about careers in the hospitality industry in Ghana. Students were sampled from traditional and technical public universities through a stratified random sampling technique. With a sample size of 1 341, exploratory factor analysis, t-test...
  33. Tillage, crop rotation, residue management and biochar influence on soil chemical and biological properties

    Tillage, crop rotation, residue management and biochar influence on soil chemical and biological properties

    Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Patrick Nyambo --- , South Africa B Thengeni --- , South Africa Cornelius Chiduza --- , South Africa Tesfay Araya --- , South Africa
    Soil and crop productivity cannot be maintained unless declining soil fertility is replenished. A three-year factorial experiment using a split-split-plot design, replicated three times, was used to evaluate the response of pH, electrical conductivity, exchangeable cations (Ca, Mg, K and...
  34. Macrophyte species diversity and distribution in relation to water quality of the Cheleleka Wetland in Ethiopia

    Macrophyte species diversity and distribution in relation to water quality of the Cheleleka Wetland in Ethiopia

    Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Haymanot Tesfaye --- , Ethiopia Bikila Warkineh --- , Ethiopia
    The Cheleleka Wetland is located in the Ethiopian Rift Valley on the upper shore of Lake Hawassa, after which the regional capital is named. This study investigated the relationship between water quality and the occurrence and diversity of macrophyte species...
  35. Does Bonga sheep producers’ cooperative membership improve households’ income in southern Ethiopia?

    Does Bonga sheep producers’ cooperative membership improve households’ income in southern Ethiopia?

    Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Kassa Tarekegn --- Southern Agricultural Research Institute, Ethiopia Yishak Shitaye --- Southern Agricultural Research Institute, Ethiopia Tesfaye Gafaro --- Southern Agricultural Research Institute, Ethiopia
    Bonga sheep is one among the known indigenous sheep breeds in Ethiopia with a high rate of growth and weight gain under smallholder management. To enhance the sheep productivity, 16 Bonga sheep breed improvement cooperatives were established in Kaffa zone...
  36. The triple whorl for industrial parks entrepreneurial ecosystem development: Unleashing the integrated role on small ventures growth

    The triple whorl for industrial parks entrepreneurial ecosystem development: Unleashing the integrated role on small ventures growth

    Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Abdella Kosa Chebo --- Kotebe Metropolitan University, Ethiopia Tesfaye Hailu Gebrekidan --- Kotebe Metropolitan University, Ethiopia
    Developing countries need industrial parks (IPs) to modernize their industries and technologies as well as to enable the growth of ventures by combining the entrepreneurial elements in the entrepreneurial ecosystem. Industrial parks will integrate domestic and foreign investment through public-private...
  37. The ‘peer’ in ‘Peer Review’

    The ‘peer’ in ‘Peer Review’

    Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Gad Perry --- Texas Tech University, USA Jaime Bertoluci --- Universidade de São Paulo, Brazil Bruce Bury --- USGS, USA RobertW. Hansen --- , USA Robert Jehle --- University of Salford, UK John Measey --- University of the Western Cape, South Africa BradR. Moon --- University of Louisiana at Lafayette, USA Erin Muths --- USGS, USA MarcoA. L. Zuffi --- Museum Natural History, University of Pisa, Italy
  38. Lie triple centralizers on generalized matrix algebras

    Lie triple centralizers on generalized matrix algebras

    Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Behrooz Fadaee --- University of Kurdistan, Iran Hoger Ghahramani --- University of Kurdistan, Iran Wu Jing --- Fayetteville State University, USA
    In this article, we introduce the notion of Lie triple centralizer as follows. Let be an algebra, and be a linear mapping. We say that ϕ is a Lie triple centralizer whenever for all . Then we characterize the general...
  39. On a functional identity involving inverses on matrix rings

    On a functional identity involving inverses on matrix rings

    Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Nadeem Ahmad Dar --- Government HSS, India Wu Jing --- Fayetteville State University, USA
    Let be a division ring which is not a field with characteristic different from 2 and 3, and with n > 1. The purpose of this paper is to characterize additive maps f,g : satisfying the functional identity f(X) +...
  40. Impact of adopting the climate-smart crop varieties on food security in southwestern Ethiopia

    Impact of adopting the climate-smart crop varieties on food security in southwestern Ethiopia

    Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Dubale Abate --- Injibara University, Ethiopia Henoke Tesfaye --- Wolkite University, Ethiopia Metadel Kassaw --- Wolkite University, Ethiopia Yonnas Addis --- Wolkite University, Ethiopia Habtamu Mossie --- Injibara University, Ethiopia
    Climate-smart crop varieties (CSV) are vital in improving food security by enhancing productivity while reducing problems of climate change. However, there is a low adoption of these varieties by the farmers in the study area due to lack of awareness...
  41. Argument mining from Amharic argumentative texts using machine learning approach

    Argument mining from Amharic argumentative texts using machine learning approach

    Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Mikru Lake Melie --- Jimma University, Jimma Institute of Technology, Ethiopia Debela Tesfaye --- Jimma University, Jimma Institute of Technology, Ethiopia Alemu Kumilachew Tegegnie --- Bahir Dar University, Bahir Dar Institute of Technology, Ethiopia Derejaw Lake Melie --- Bahir Dar University, Bahir Dar Institute of Technology, Ethiopia
    Argument mining is an emerging science that deals with the automatic identification and extraction of arguments along with their relation from large, unstructured data that are useful for reasoning engines and computational models. Identification and extraction of argument relation from...
  42. Changing structure of India’s exports with Africa: Where do the technology-intensive exports stand?

    Changing structure of India’s exports with Africa: Where do the technology-intensive exports stand?

    Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Mohd Fayaz --- Central University of Punjab, India Sandeep Kaur --- Central University of Punjab, India
    The present study is an endeavour to document the pattern of comparative advantage and structural changes of Indian exports with Africa with the help of revealed comparative advantage index and the constant market share model for the period 1980–2021. The...
  43. Common mental health problems among adolescents in sub-Saharan Africa: A systematic review and meta-analysis

    Common mental health problems among adolescents in sub-Saharan Africa: A systematic review and meta-analysis

    Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health • Authors: Gari Hunduma --- Haramaya University, Ethiopia Yadeta Dessie --- Haramaya University, Ethiopia Biftu Geda --- Addis Ababa University, Ethiopia Tesfaye Assebe Yadeta --- Haramaya University, Ethiopia Negussie Deyessa --- Madda Walabu University, Ethiopia
    Background and aim: This review examined the prevalence of mental health problems among adolescents in sub-Saharan Africa.
  44. Calibration and evaluation of a CROPGRO Perennial Forage Model for <em>Brachiaria humidicola</em> yield simulation under future climate in subhumid environments of Ethiopia

    Calibration and evaluation of a CROPGRO Perennial Forage Model for Brachiaria humidicola yield simulation under future climate in subhumid environments of Ethiopia

    Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Fantahun Dereje --- Wallaga University, Ethiopia Ashenafi Mengistu --- Addis Ababa University, Ethiopia Diriba Geleti --- Ethiopian Institute of Agricultural Research, Ethiopia Fekede Feyissa --- Ethiopian Institute of Agricultural Research, Ethiopia Diriba Diba --- Wallaga University, Ethiopia Diego Pequeno --- , Mexico Buzunesh Tesfaye --- Wallaga University, Ethiopia
    Crop simulation models can be employed to assess the impacts of climate change and aid in strategic planning and decision making regarding forage strategies. This study focused on calibrating and assessing the performance of the CROPGRO Perennial Forage Model in...
  45. An investigation on the factors influencing the success of Ethiopian tech startup companies: The ISM approach

    An investigation on the factors influencing the success of Ethiopian tech startup companies: The ISM approach

    Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Abebe Shimelis --- Addis Ababa Institute of Technology, Ethiopia Birhanu Beshah --- Addis Ababa Institute of Technology, Ethiopia Ermias Tesfaye --- Addis Ababa Institute of Technology, Ethiopia
    Startups play a significant role in developing innovation and the economic growth for a country. Technology-based startup businesses play a primary role in supporting economic development. The success of technology startups centres on various interrelated factors. This study identifies these...
  46. Measuring successful business models in Ethiopian technology business: A PLS-SEM approach

    Measuring successful business models in Ethiopian technology business: A PLS-SEM approach

    Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Abebe Shimelis --- School of Mechanical and Industrial Engineering, Addis Ababa Institute of Technology, Ethiopia Birhanu Beshah --- School of Mechanical and Industrial Engineering, Addis Ababa Institute of Technology, Ethiopia Ermias Tesfaye --- School of Mechanical and Industrial Engineering, Addis Ababa Institute of Technology, Ethiopia
    The development of successful business models is crucial for sustaining innovative technology firms; however, measuring business model success remains challenging due to varying economic dynamics. This study addresses this gap by developing and testing a framework to assess the success...
  47. Managing land use transitions to safeguard transhumance corridors in arid eastern Morocco: challenges and adaptive strategies

    Managing land use transitions to safeguard transhumance corridors in arid eastern Morocco: challenges and adaptive strategies

    Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Imane Hamzaoui --- Hassan II Agronomy and Veterinary Medicine Institute, Morocco Mohamed Chikhaoui --- Hassan II Agronomy and Veterinary Medicine Institute, Morocco Nicolas Faysse --- , France Mohamed Taher Sraïri --- Hassan II Agronomy and Veterinary Medicine Institute, Morocco
    The conversion of rangelands and barren lands into agricultural use destabilises fragile pastoralism. This study examines the drivers and impacts of this transformation on pastoralism in Tinghir province, Morocco, using geospatial analysis, semi-structured interviews with pastoralists, discussions with officials and...
  48. Impact of agroforestry tree canopies on soil properties and wheat (<em>Triticum aestivum</em>) yield in southern Ethiopia

    Impact of agroforestry tree canopies on soil properties and wheat (Triticum aestivum) yield in southern Ethiopia

    Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Daba Misgana Bekele --- Arba Minch University, Forestry Department, Ethiopia Tesfaye Hailemariam Hagos --- Arba Minch University, Forestry Department, Ethiopia Dereje Tsegaye Selfeko --- Arba Minch University, Plant Sciences Department, Ethiopia
    Farmers in southern Ethiopia integrate versatile trees with annual crops; yet, scientific data on their impacts on soil properties and crop yields remain limited. This research evaluated the impact of Croton macrostachyus (Hochst. Ex Delile) and Erythrina brucei (Schweinf) canopies...
  49. Mobile money usage and performance of women-owned enterprises: Evidence from Kenya

    Mobile money usage and performance of women-owned enterprises: Evidence from Kenya

    Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Tesfaye T. Lemma --- Towson University, USA Mthokozisi Mlilo --- University of the Witwatersrand, South Africa
    The rapid expansion of digital financial services has sparked discussions about their potential to help financially constrained businesses overcome performance challenges. We investigate whether female-owned businesses, which are often more financially constrained than male-owned businesses, could reduce their performance gap...