Articles

 

Articles

Page 6 of 1151, showing 50 records out of 57545 total, starting on record 251, ending on 300

January 2019

Educational Research and Reviews
Violence and fear In Francesca Simon's Series of Horrid Henry

Children's literature is the literary work concerned with the level of interest, need, readiness and development of children. It started in Europe and the Tanzimat in the 16th century. Children's books both local and foreign ones, enhance their cognitive and affective developments cumulatively. This study examines violence and fear in Francesca Simon's series of "Horrid Henry". This work identifies...

Author(s): Esma Dumanli Kadizade and Can Sakar

January 2019

Educational Research and Reviews
The practice and challenges of school-based teachers’ continuous professional development: A case of Government Secondary Schools of Hawassa City in Ethiopia

The purpose of this study was to examine the practices and challenges of school-based teachers’ continuous professional development implementation in secondary schools of Hawassa City Administration. The study employed a descriptive survey design with both quantitative and qualitative method. The sampling technique used in the study was availability and simple random sampling technique. The sample size was 101...

Author(s): Abraham Tulu  

January 2019

African Journal of Agricultural Research
Difficulties in adaptation to climate change by oil palm farmers in Southern Nigeria

There is an increasing concern that climate change is already having an impact on poor, small scale oil palm farmers in Southern Nigeria. Researchers have shown that Nigeria is already being plagued with diverse ecological problems which have been linked to climate change. More so, increase in the severity of extreme weather events, sea level rise, coastal erosion, changes in weather pattern that affect oil palm...

Author(s): Ojemade, A. C., Okorji, E. C. and Enete, A. A.  

January 2019

African Journal of Agricultural Research
Effects of moisture stresses during vegetative and reproductive growth phases on productivity of six selected rain-fed rice varieties in Ifakara, Tanzania

In order to study the critical growth stages and the most tolerant rice varieties in both lowland and upland rainfed ecosystems, an experiment arranged in split plots based on randomized complete block design was conducted under field conditions with 3 replications. Three stress timing irrigation treatments (no stress, vegetative moisture stress, and reproductive moisture stress) were assigned as th main plots, while 6...

Author(s): KITILU M. J. F., , NYOMORA, A. M. S. and CHARLES J.  

January 2019

African Journal of Agricultural Research
Responses of Moringa oleifera root growth to container size during overwintering in temperate regions

Due to its fast growth rates, Moringa oleifera is being grown as an annual crop in temperate areas with freezing winter temperatures. Seedlings are raised under greenhouse conditions for overwintering and then transplanted outside at the beginning of spring, which allows for several cuttings prior to onset of the subsequent winter. However, there is limited information on container-size for overwintering of M. oleifera...

Author(s): Phatu W. Mashela  

January 2019

African Journal of Agricultural Research
Assessment of technical conformity of bench terraces for soil erosion control in Rwanda

The purpose of this paper was to evaluate technical conformity of bench terraces in the Eastern Province of Rwanda. A sample of 180 actual bench terraces from 12 sites located in this Province was tested against technical standards and models provided for by the Ministry of Agriculture of Rwanda and Food and Agriculture Organization of the United Nations. The results showed that many sites have been constructed with no...

Author(s): Eric Derrick Bugenimana, Emmanuel Mhache Patropa, Charles Karemangingo and Theoneste Bimenyimana  

January 2019

African Journal of Agricultural Research
Levels of some selected metals (Fe, Cu and Zn) in selected vegetables and soil around eastern industry zone, central Ethiopia

The purpose of this study was to determine the concentration of selected metals (Fe, Zn and Cu) in vegetables and the soil contaminating levels due to irrigation, using Flame Atomic Absorption Spectrophotometer (FAAS). The wet digestion and sequential fractionation extraction procedures were employed to solubilize the metals from the collected samples. The results obtained from this study showed overall concentration of...

Author(s): Dagne Bekele Bahiru and Endale Teju  

January 2019

African Journal of Agricultural Research
Levels of some toxic heavy metals (Cr, Cd and Pb) in selected vegetables and soil around eastern industry zone, central Ethiopia

The purpose of this study was to determine the concentration of heavy metals (Cr, Cd and Pb) in vegetables and the soil contaminating levels as a result of irrigation using Flame Atomic Absorption Spectrophotometer (FAAS). The wet digestion and sequential fractionation extraction procedures were employed to solubilize the metals from the collected samples. The results obtained from this study showed overall...

Author(s): Dagne Bekele Bahiru, Endale Teju, Tesfahun Kebede and Negash Demissie  

January 2019

African Journal of Agricultural Research
Land Use Land Cover Change Trend and Its Drivers in Somodo Watershed South Western, Ethiopia

Land use land cover (LULC) dynamics are a widespread, accelerating, and significant process driven by human actions. LULC changes analysis is one of the most precise techniques to understand how land was used in the past, what types of changes are to be expected in the future, as well as the forces and processes behind the changes. This study was carried out to evaluate the historical and future trends as well as...

Author(s): Fasika Alemayehu, Motuma Tolera and Gizaw Tesfaye  

January 2019

African Journal of Biotechnology
Haplotype analysis of Ethiopian bread wheat (Triticum aestivum) cultivars and elite lines for yellow rust resistance genes using linked molecular markers

Yellow rust, caused by Puccinia striiformis f. sp. tritici, is one of the most important diseases of wheat in Ethiopia. Poor knowledge of resistance genes deployed in Ethiopian wheat cultivars is one major factor for recurrent epidemics of rust diseases. Molecular marker based gene identification showed the presence of Yr1, Yr4, Yr6, Yr7, Yr9, Yr10, Yr17 and Yr18 in various frequencies, whereas Yr8 was not detected in...

Author(s): Woubit Dawit, Ayele Badebo, Bekele Hunde, Daniel Kassa and M. S. Röder  

January 2019

African Journal of Biotechnology
Evaluation of the morphological and quality characteristics of new papaya hybrid lines in Kenya

Papaya (Carica papaya L.) is among the most grown fruit crops worldwide with high economic and nutritional value. In Kenya, the papaya industry relies heavily on imported varieties and farmers’ selected seed whose quality is not known. Therefore, the morphological and quality characteristics of mature fruits of eight newly developed papaya hybrids and their control, Sunrise solo were assessed using papaya...

Author(s): Gaudence Nishimwe, Janet Chepng’etich Kosgei, Everlyn Musenya Okoth, George Ochieng’ Asudi, and Fredah Karambu Rimberia  

January 2019

African Journal of Pharmacy and Pharmacology
Improving blood pressure control in patients with pseudoresistant hypertension – A pilot randomized trial

This study aims to evaluate the effect of an intervention focused on medication adherence to improve blood at three basic health units in Maceió, Brazil. Patients were followed-up for three months. Primary outcomes were pressure control in patients with pseudoresistant hypertension. A randomized controlled clinical trial was conducted mean values of systolic blood pressure (SBP) and diastolic blood pressure...

Author(s): Dilcy Morgana Barros Maciel Cabral Davino, Rosileide Zeferino Da Silva, Francisco de Assis Costa, Sabrina Joany Felizardo Neves and Alfredo Dias de Oliveira-Filho  

January 2019

African Journal of Microbiology Research
Evaluation of starter culture fermented sweet potato flour using FTIR spectra and GCMS Chromatogram

Starch is the major component of cereal grains and starchy foods, and changes in its biophysical and biochemical properties (such as, amylose, amylopectin, pasting, gelatinization, viscosity) will have a direct effect on its end use properties (such as, bread, malt, polymers). Lactobacillus brevis and Debaromyces polymorphous  earlier obtained from fermented sweet poatao broth were used to ferment sweet potato and...

Author(s): Ajayi O. I., Okedina T. A.,  Samuel A. E.,  Asieba G. O., Jegede A. A., Onyemali C. P., Ehiwuogu-Onyibe J., Lawal A. K. and Elemo G. N.  

January 2019

African Journal of Microbiology Research
In vitro antibacterial activity of Rumex nervosus and Clematis simensis plants against some bacterial human pathogens

Due to quick growth of resistance and high cost of new generation antibiotics, lots of efforts were made to discover new antimicrobial agents from various sources. So, current study was assessed antibacterial activity of ethanol, methanol, acetone, diethyl ether and hexane leave extracts of Rumex nervosus and Clematis simensis by used paper disc diffusion and broth dilution procedures against six human pathogenic...

Author(s): Habtamu Tedila and Addisu Assefa  

January 2019

African Journal of Microbiology Research
Study on bovine mastitis with isolation of bacterial and fungal causal agents and assessing antimicrobial resistance patterns of isolated Staphylococcus species in and around Sebeta town, Ethiopia

A cross-sectional study was conducted from December 2016 to May 2017 in and around Sebeta town with the aim of assessing the prevalence of mastitis, isolation of aerobic bacterial and fungal causal agents and assessing antimicrobial resistance pattern of isolated Staphylococcus species in dairy cows. From a total of 383 dairy cows, 220 (57.4%) were found to be positive for mastitis of which 10.4% were affected by...

Author(s): Tesfaye Bekele, Matios Lakew, Getachew Terefe, Tafesse Koran, Abebe Olani, Letebrihan Yimesgen, Mekdes Tamiru and Tilaye Demissie  

January 2019

African Journal of Agricultural Research
Review on bio-intensive management of African bollworm, Helicoverpa armigera (Hub.): Botanicals and semiochemicals perspectives

African bollworm, Helicoverpa armigera (Hübner), is a serious pest of cereals, sorghum, cotton, pepper, maize, sunflower, flax and niger. To control this insect pest, doses of insecticides have been used. The use of indiscriminate synthetic insecticides causes adverse effect like environmental pollution, human and animal health hazards, and development of pesticide resistance. To alleviate these bottleneck...

Author(s): Tariku Tesfaye Edosa  

January 2019

African Journal of Agricultural Research
Degradation assessment of wetlands under different uses: implications on soil quality and productivity

The assessment of degradation status of wetland soils under five different land use types (LUTs) in Ogun state, Nigeria were studied. The laboratory study was conducted to determine the physical, chemical and biological properties of these wetlands and the results obtained were compared with the food and agriculture organization (FAO) standard indicators and criteria for land degradation assessment. The textural...

Author(s): O.A. Osinuga and C.O. Oyegoke  

January 2019

African Journal of Agricultural Research
Natural occurrence of Diadiplosis megalamellae (Barnes) in mealybugs on roses in Kenya

Over the last decade there has been an increasing adoption of Integrated Pest Management on rose farms in Kenya. As a consequence, there has been a rise in secondary pests on rose plants, including in particular the citrus mealybug Planococcus citri (Risso). On cut flowerrose farms in Kenya, the presence of the predatory midge Diadiplosis megalamellae (Barnes) (Diptera: Cecidomyiidae) was observed. Therefore, a survey...

Author(s): Anouk H. J. Hoogendoorn, Ruth Murunde, Evans Otieno and Henry Wainwright  

January 2019

African Journal of Agricultural Research
Banana field resistance to insect-vector transmission of bacterial wilt caused by Xanthomonas campestris p.v musacearum

Banana, a major staple in East and Central Africa is constrained by banana Xanthomonas wilt (BXW) caused by Xanthomonas campestris pv. musacearum (Xcm). Xcm-infected plants are rapidly destroyed leading to 100% yield loss. Cultural controls are effective but laborious attracting laxity among farmers. This has led to epidemic resurgence in areas where BXW had been contained hence spread to new regions. Reliable control...

Author(s): B. Mudonyi, L. Vanhaelewyn, G. Tusiime, F. Ssekiwoko, J.Kubiriba, W. K. Tushemereirwe and C. M. Changa        

January 2019

African Journal of Agricultural Research
Evaluation of sugarcane hybrid clones for cane and sugar yield in Nigeria

Field experiment was conducted in year 2015/2016 at the National Cereals Research Institute Badeggi, Niger State (sugarcane research field) to evaluate the performance of sixteen sugarcane genotypes. The clones were planted in a Randomized Complete Block Design (RCBD) and replicated three times. Analysis of variance showed significant differentiation among studied genotypes. The results revealed that among the evaluated...

Author(s): Mohammed A. K., Ishaq M. N., Gana A. K. and Agboire S.  

January 2019

African Journal of Agricultural Research
Status and distribution of soil available micronutrients along a hillslope at Ekpri Ibami in Akamkpa Local Government Area of Cross River State, Nigeria

A field study of the status and distribution of available soil micronutrients along a hillslope of Ekpri Ibami was carried out on a 50 ha land. The aim of the study is to evaluate the micronutrient status and distribution and their relationship with some selected soil properties. A total of 16 soil samples were collected from each pedogenic horizons of four profile pits dug along a hillslope classified as upper slope,...

Author(s): John Kingsley, Ayito Esther O., A. U. Akpan-Idiok and O. D. Effiom  

January 2019

African Journal of Biotechnology
Decolourization of synthetic dyes by laccase enzyme produced by Kluyveromyces dobzhanskii DW1 and Pichia manshurica DW2

Industrialization has come with environmental challenges. Industries like paper, printing, textile, leather and so on widely use chemical dyes whose waste treatment or degradability is difficult. Among various methods employed, the use of microbial enzymes is the most effective. The study aimed at producing laccase from identified yeast strains for potential industrial use in dye decolourization. Laccase produced by...

Author(s): Sherifah Monilola Wakil, Seun Andrew Eyiolawi, Kehinde Olamide Salawu and Abiodun Anthony Onilude  

January 2019

African Journal of Biotechnology
Enhancement of anaerobic batch digestion of spineless cacti (Opuntia ficus indica) feedstock by aerobic pre-treatment

One of the best options for African countries to meet rural energy needs is to grow care-free crassulacean acid metabolism plants on a massive scale in waste lands. This can enable bioenergy production without disrupting food supplies and hence sustainable energy supply for the future. Opuntia ficus indica is an ideal plant for arid regimes but has barely been studied as a potential bioenergy source. This study...

Author(s): Hawa Myovela, Anthony Manoni Mshandete and Samuel Imathiu  

January 2019

African Journal of Biotechnology
Evaluation of the diversity in qualitative traits of Bambara groundnut germplasm (Vigna subterranea (L.) Verdc.) of Côte d’Ivoire

The objectives of this study were to assess phenotypic diversity of Bambara groundnut germplasm from Côte d’Ivoire using qualitative traits and to understand the genetic diversity at different levels. Hundred and one accessions collected from four agro-ecological zones (central, eastern, northern, western) were characterized in a randomised complete block design with three replications. Thirteen qualitative...

Author(s): Beket Séverin BONNY, Dagou SEKA, Koffi ADJOUMANI, Kouamé Guillaume KOFFI, Léonie Clémence KOUONON and Raoul Sylvère SIE  

December 2018

African Journal of Food Science
Stability of concentrated extracts of Hibiscus sabdarifa L. calyx during storage at different temperatures

Hibiscus sabdariffa L. (Malvaceae) calyx is a valuable food resource in Africa. This herb is rich in phenolic compounds and a good source of natural antioxidants. Concentrated extract prepared with Hibiscus sabdariffa L. calyx is commonly used in traditional African and Asian diets and medicines. However, the organoleptic properties of these extracts are degraded during storage. Therefore, the stability of these...

Author(s): Moussa Ndong, Ndeye Seni Faye, Joseph Bassama and Mady Cissé

December 2018

African Journal of Food Science
Effect of pretreatments on the microbial and sensory quality of weaning food produced from blends of sorghum and soybean

This study investigated the effect of pre-treatment on the microbial and sensory quality of weaning foods produced from blends of sorghum and soybean. Sorghum and soybean were fermented, roasted and fermented/roasted, then milled into flours. Untreated sorghum and soybean flours were also produced separately and serve as the control. A portion of sorghum was malted and milled to obtain malted sorghum flour of which 5%...

Author(s): Msheliza E. A., Ilesanmi J. O. Y. , Hussein J. B. and Nkama I.

December 2018

African Journal of Food Science
Production and functional property of maize-millet based complementary food blended with soybean

Traditional complementary foods are mainly based on cereal grains which when cooked get gelatinized and swollen thereby making the diet viscous and bulky for infants and young children. This study was carried out to investigate the effect of fermentation, germination, and roasting methods on the functional properties of maize-millet-soybean mix with a view to producing less bulky and nutrient dense complementary food....

Author(s): Akinsola A. O., Idowu M. A., Babajide J. M., Oguntona C. R. B. and Shittu T. A.

December 2018

African Journal of Food Science
Freeze and spray drying of Scaptotrigona bipunctata (Lepeletier, 1836) pollen - development and physicochemical characterization

This study was carried out to evaluate human consumption of the pollen of Scaptotrigona bipunctata colonies stored in pots; it was lyophilized and spray-dried in arrays of arabic gum and hydrolyzed collagen which have been widely applied to get products with best technological features and highest  biological activity. After the samples were prepared they were evaluated by physicochemical analysis, and the data...

Author(s): Maria Josiane Sereia, Ana Luíza Sereia, Rejane Stubs Parpinelli, Érica Gomes de Lima, Adriele Rodrigues dos Santos, Fernando Antônio Anjo, Cláudio Gomes da Silva Júnior, Vagner de Alencar Arnaut de Toledo

December 2018

African Journal of Food Science
Enhancement of eritadenine production using three carbon sources, immobilization and surfactants in submerged culture with shiitake mushroom (Lentinula edodes) (Berk.) Singer)

In this study, the effect of three carbon sources (mannitol, minced potato and sucrose), two immobilization substrates (alginate and wood cylinders), and three surfactants (Tween 20, Tween 40 and Tween 80), were evaluated on eritadenine production using shiitake (Lentinula edodes) mycelium under submerged cultivation, in shake flasks within 20 days. Eritadenine and biomass were measured by HPLC and gravimetrically,...

Author(s): Byron Durán-Rivera, José Rodrigo Moreno-Suárez, Felipe Rojas Rodas, Kelly Marcela Valencia Jiménez and Dagoberto Castro–Restrepo  

December 2018

International Journal of Livestock Production
Effect of cowpea (Vigna unguiculata) grain on growth performance of Cobb 500 broiler chickens

A total of 300 day old Cobb and 500 broiler chicks distributed randomly to 20 pens with 15 chicks each were allocated to 5 different dietary treatments with 4 replicates per treatment in order to evaluate the growth performances of Cobb 500 broiler chickens. A complete randomized design (CRD) was used. Cowpea inclusion levels were 0% (T1), 5% (T2), 10% (T3), 15% (T4) and 20% (T5). A partial budget analysis was done for...

Author(s): Tsigab Nirayo Embaye, Negassi Ameha and Yisehak Yusuf  

December 2018

International Journal of Livestock Production
Farmers’ perception on sheep production constraints in the communal grazing areas of the Eastern Cape Province, South Africa

The study was conducted to identify farmers’ perception and ranking of the most important constraints to sheep production at Sinqumeni administrative area, in Ngcobo local municipality of the Eastern Cape Province, South Africa. Data was collected using semi-structured questionnaire. The results showed that 72.6% of the surveyed farmers were males and 62.5% of the farmers were between the ages of 52-80 years. The...

Author(s): S. Mthi and N. Nyangiwe  

December 2018

Journal of Geography and Regional Planning
Urban road and on-street parking in Niger Delta Region of Yenagoa, Bayelsa State, Nigeria

This study is a survey of urban roads and on-street parking in Niger Delta Region- Yenagoa, Bayelsa State. The study generated data with the aid of physical measurements, traffic and volumetric counts. Descriptive and inferential statistical tools were utilized for the data analysis. The results showed that road widths were narrow and could not accommodate on-street parking. Tested hypotheses confirmed that the width of...

Author(s): Kenibolayefa Michael Owota and Innocent Miebaka Aprioku  

December 2018

Journal of Geography and Regional Planning
Environmental sanitation practices in Kuchigworo and Garamajiji along airport road, Abuja

Good environmental sanitation is a precondition for good health and success in the fight against poverty, hunger and death. It is also central to the human rights and personal dignity of every human being. The study adopted direct field observation, it involved interview and physical assessment. Results were presented in tables and charts, while data analyses were carried using simple percentages and frequencies. The...

Author(s): Sadiq Q. O., Ezeamaka C. K., Daful M. G., Anjide T. W., Sani H. and Ogbole M.  

December 2018

Journal of Geography and Regional Planning
An assessment of youths’ perception and participation on environmental management undertakings: Empirical evidence from Youth Development and Change Package implementation in Southern Ethiopia (SNNPRS)

The participation of youths is important in the management of environmental problems. Environmental problems such as deforestation, overgrazing, soil erosion, and improper waste disposal are common in most parts of Ethiopia. Inappropriate environmental policies, population growth, climate change, and low level of awareness and less participation of the public are the major factors responsible for the problems. These...

Author(s): Tafesse Matewos Karo  

December 2018

Journal of Plant Breeding and Crop Science
GGE biplot phenotypic stability analysis of soybean [Glycine max (L.) Merril] genotypes

The study on genotypes by environment interaction (GEI) and stability analysis was conducted to determine the G, E, and GEI variance magnitudes. The experiment was carried out at three locations in two consecutive years on 26 soybean genotypes using randomized complete block design (RCBD) design with three replications. The objectives were to (i) estimate the magnitudes of G, E, and GEI effects, (ii) stability analysis...

Author(s): Ermiyas Tefera  

December 2018

Journal of Plant Breeding and Crop Science
Influence of environment on soybean [Glycine max (L.) Merr.] resistance to groundnut leaf miner, Aproaerema modicella (Deventer) in Uganda

Groundnut leaf miner (GLM) [Aproaerema modicella (Deventer)] is a serious problem for soybean cultivation in Uganda causing yield losses of up to 100%. The use of soybean [Glycine max (L.) Merr.] cultivars resistant to GLM attack is an important strategy in the integrated pest management program. The aim of this study was to determine the environment × genotype interaction influence on the soybean resistance...

Author(s): Angele Pembele Ibanda, Jeninah Karungi, Geoffrey Maxwell Malinga, Georges Adjumati Tanzito, David Ocan, Arfang Badji, Natasha Mwila, Thomas Lapaka Odong, Phinehas Tukamuhabwa and Patrick  Rubaihayo  

December 2018

International Journal of Livestock Production
A critical audit on available beef and chicken edible offals and their prices in retail chain stores around Gaborone, Botswana

The study aims to determine the available beef and chicken edible offals and their prices in four major retail stores in Gaborone, Botswana. Traditionally, edible beef and chicken offal were available and sold in rural meat and informal markets around Gaborone, but recently upmarket retail stores of Gaborone sell these products. The study was done over a period of twelve months. Amongst the offals noted in the retail...

Author(s): Molebeledi Horatius Dambe Mareko, Molefe Gosetsemang, Thabang Molale  

December 2018

Journal of Media and Communication Studies
The changing nature of “News Reporting, Story Development and Editing”

With advancements in technology in this age of globalization and digital media, the nature of News Reporting, Story Development and Editing across the United States have been constantly evolving. Through a systematic secondary research, the current research would examine various factors which led to the evolutionary journey of News Reporting, when there was simply a man behind a desk delivering news to the age of...

Author(s): Ghadeer Al Najar  

December 2018

Journal of Media and Communication Studies
Does mobile technology increase the diversity of news? A content analysis of news notifications on mobile phones

Through conducting a content analysis of news notifications on the mobile media platform, the current study mainly finds that 1) no agenda correlation exists among legacy media outlets; 2) an agenda correlation is found between non-legacy media outlets and legacy media outlets; 3) in terms of news pushing frequencies, non-legacy media outlets, and legacy media outlets share different news pushing patterns on the mobile...

Author(s): Fei Qiao  

December 2018

African Journal of Environmental Science and Technology
Study of the reactivity of Casamance vegetable and agricultural waste char gasification with steam and CO2

The increasing energy demand coupled with the need to reduce greenhouse gas emissions and the threat of exhaustion of oil reserves make us consider a possible recourse to the use of biomass waste as a source of renewable energy. Nowadays, gasification is not yet economically and operationally attractive for the power industry and more research is needed to facilitate the process and improve the desirability of the...

Author(s): Ansoumane DIEDHIOU, Lat-Grand NDIAYE, Ammar BENSAKHRIA and Oumar SOCK

December 2018

African Journal of Environmental Science and Technology
Valorization of water resources in Senegal for economic, social and sustainable development

Senegal has a rich and diversified hydrological potential. The bulk of surface water reserves are located in the basin's rivers Senegal and Gambia, whose waters originate from the Fouta Djallon massif. Alongside these large rivers, there are smaller rivers (Casamance and Kayanga) and small watersheds with temporary flows. Groundwater resources are also an important part of Senegal's...

Author(s): Cheikh Faye and Sidy Dieye

December 2018

African Journal of Environmental Science and Technology
Comparative experimental study of performance degradation of amorphous silicon and crystalline silicon in outdoor exposed in Cologne

The photovoltaic (PV) lifetime and the return-on-investment for local PV system installation rely on long-term device performance. Understanding the efficient degradation behavior under a given set of environmental conditions is, therefore, a primary goal for experimental research and economic analysis. The modules were characterized with measurement of their I-V features under similar outdoor condition. Moreover,...

Author(s): I. Faye, A. Ndiaye, D. Kobor, U. Blieske and M. Ayituv

December 2018

African Journal of Environmental Science and Technology
Modeling ensemble streamflow: Application to the Senegal River upper the Manantali Dam

This study presents an ensemble stream flow simulation with probability of occurrence accounting for errors of the GR4J turned to the Senegal River upper the Manantali dam. Through this approach, probability is associated to simulation at each time, with step and reliability of issues depending on probability scores. Results including the reliability of the results permit decision-makers to judge the reliability of...

Author(s): Ndione D. M., Sambou S., Sane M. L., Kane S., Leye I., Tamba S., Diedhiou R., Cisse M. T. and Ngom I.  

December 2018

African Journal of Environmental Science and Technology
Physicochemical and mechanical properties of biomass coal briquettes produced by artisanal method

In this study, carbonized peanut shells, cashew shells and millet stalks were used as raw materials to produce coal briquettes. Clay and arabic gum were applied as binders during briquetting by use of manual press. Physicochemical and mechanical tests of the obtained briquettes were conducted. The results show that the lower heating values of coal briquettes remain higher to that of wood; however, their ash contents are...

Author(s): Philippe Bernard Himbane, Lat Grand Ndiaye, Alfredo Napoli and Diouma Kobor  

December 2018

African Journal of Environmental Science and Technology
A numerical modeling study of the Southern Senegal upwelling shelf: Circulation and upwelling source waters

The regional ocean circulation along the Southern Senegal shelf is studied using a numerical model for varying forcing fields during the upwelling season (November-May). The main objective is to study the shelf circulation of the marine environment in the Southern Senegal Upwelling Shelf (SSUS), the Lagrangian pathways by which waters are transported to the surface in the upwelling tongue and the fate of these waters....

Author(s): S. Ndoye, X. Capet, P. Estrade, E. Machu, L. Kounta, B. Sow, M. Diakhaté and A. T. Gaye

December 2018

African Journal of Environmental Science and Technology
Assessment of satellite rainfall products for stream flow simulation in Gambia watershed

Satellite rainfall estimates (SRE) with high spatial and temporal resolution and large areal coverage provide a potential alternative source to force hydrological models within regions where ground-based measurements are not readily available. The Gambia Basin in West Africa provides a good example of a case where the use of satellite precipitation estimates could be beneficial. This study aims to compare three SRE over...

Author(s): Bakary FATY, Abdou ALI, Honoré DACOSTA, Ansoumana BODIAN, Salif DIOP and Luc DESCROIX  

December 2018

African Journal of Environmental Science and Technology
Variability and predictability of bush fire in Guinea on inter-annual and multi-year timescales based on NDVI-MODIS datasets analysis

This study investigates the variability and the predictability of bush fire on inter-annual and multi-year timescales in Guinea (latitudes 7° 05 and 12° 51 N and longitudes 7° 30 and 15° 10 W). Using Moderate Resolution Imaging Spectroradiometer (MODIS) with a spatial resolution of 231 m × 231 m and 16 days composite temporal resolution between 2001 and 2016, two brush fire hazard indices are...

Author(s): M. B. Barry, D. Badiane, M. Diakhaté, S. M. Sall, H. Senghor and T. N. Millimono,  

December 2018

African Journal of Political Science and International Relations
Corruption and fiscal federalism in Nigeria: Analysis of the federal budgetary process, 1999 – 2016

Corruption is perhaps the biggest challenge to Nigeria’s development and the integrity of the country’s fiscal monetary system. Since independence in 1960, corruption has been a destabilizing factor in the country’s progress. It however gained pronounced ascendancy during the Second Republic, forcing a greater percentage of the country’s population into serious economic hardship leading to the...

Author(s): Anthony Egobueze and Callistus U. Ojirika  

December 2018

African Journal of Political Science and International Relations
The ‘Significance of Elections’ in Africa: 2015 elections and democratic consolidation in Nigeria

 While it can be argued that elections are not enough for the consolidation of democracy, elections are fast emerging as a significant component of democratization. Not least, because their regularity has enhanced freedom and liberalization, but also because they have been the cause and/or effect of democratic consolidation. As a key component of democracy, elections have become the barometer and template upon...

Author(s): Abiodun Fatai  

December 2018

Journal of Development and Agricultural Economics
Evaluating the impact of small-scale irrigation practice on household income in Abay Chomen District of Oromia National Regional State, Ethiopia

Being the backbone of the Ethiopian economy, agricultural practice has been traditionally dominated for centuries by small-scale farmers. Even though small-scale irrigation is practiced in the study area, its impact on household income is not analyzed systematically for further policy action. This study was conducted to evaluate the impact of participation in small-scale irrigation on household income in Abay Chomen...

Author(s): Temesgen Hirko, Mengistu Ketema and Fekadu Beyene  

Page 6 of 1151, showing 50 records out of 57545 total, starting on record 251, ending on 300