Articles

 

Page 2 of 1182, showing 50 records out of 59054 total, starting on record 51, ending on 100

January-June 2020

Journal of Agricultural Biotechnology and Sustainable Development
Assessing the impacts of climate change and variability on maize post-harvest system at Kongwa and Kondoa District in Tanzania

This study attempted to investigate the pattern and trend of climate change, its influence and interaction with maize post-harvest system and established the current status of maize post-harvest losses at Kongwa and Kondoa district in Tanzania. Participatory rural appraisal technique and household survey methods were used to collect primary data. Secondary data for the study area including rainfall and temperature data...

Author(s): Namkunda Johnson, Agnes Nyomora and James Lyimo  

March, 2020

African Journal of Agricultural Research
Improvement of growth performance and meat sensory attributes through use of dried goat rumen contents in broiler diets

The study investigated the use of dried goat rumen contents (DGRC) on growth performance of broiler chickens. Rumen contents were obtained from goats immediately after slaughter during the wet season, sundried, milled and incorporated in experimental diets at levels of 0, 5 and 10%. The 0% DGRC diet was the control. The experimental diets were formulated on iso-caloric and iso-nitrogenous principles in line with the...

Author(s): Mwesigwa Robert, , Migwi Perminus Karubiu, King’ori Anthony Macharia, Onjoro Paul Anthans, Odero-Waitiuh Jane Atieno, Xiangyu He and Zhu Weiyun  

January-March 2020

Journal of Plant Breeding and Crop Science
Genetic variability, heritability and correlation of quantitative traits for Arabusta coffee (C. arabica L. X Tetraploid C. canephora Pierre)

The biennial bearing and the long productive nature of coffee makes it difficult to release coffee variety within a short time span. This study aimed at evaluating the yield performance of the Arabusta hybrids and its backcrosses developed by Coffee Research Institute of the Kenya Agricultural and Livestock Research Organization (KALRO-CRI) using the morphological traits. Nineteen coffee genotypes were evaluated at...

Author(s): Jane Jerono Cheserek, Kahiu Ngugi, James Wanjohi Muthomi and Chrispine Ogutu Omondi  

January-March 2020

Journal of Soil Science and Environmental Management
Use of charcoal (biochar) to enhance tropical soil fertility: A case of Masako in Democratic Republic of Congo

Soil fertility transience in the region of Masako in Democratic Republic (RD) of Congo remains a major challenge to sustainable agricultural production. Recently, biochar application as soil amendment has attracted attention of the people across the world owing to its potential to improve soil physicochemical properties, crop yield and carbon sequestration into the soil. A study was conducted in Masako to analyze the...

Author(s): Tanzito G, Ibanda P. A., Ocan D., and Lejoly J.  

January-March 2020

Journal of Soil Science and Environmental Management
Effects of long term sugarcane production on soils physicochemical properties at Finchaa sugar Estate

In Ethiopia, where sugarcane has been cultivated for over 20 years, changes in soil physicochemical properties are expected to occur albeit information on the extent of change is scanty. A study was conducted in 2015 at Finchaa Sugar Estate with the objective of assessing the status of selected soil properties under long term mechanized sugarcane cultivation. Disturbed composite and undisturbed soil samples from 0-30...

Author(s): Tesfaye Wakgari, Kibebew Kibret, Bobe Bedadi, Melesse Temesgen and Teklu Erkossa  

January-March 2020

Journal of Pharmacognosy and Phytotherapy
Phytochemical analysis, antioxidant and antidiarrhoeal activities of methanol extract of Fimbristylis miliacea (L.) Vahl

The present study determined phytochemical content, antioxidant and antidiarrhoeal effect of methanol extract of Fimbristylis miliacea. Phytochemical screening showed the presence of flavonoids, saponins, tannins, phenols, alkaloids and cardiac glycosides. Total phenolic, flavonoids, flavonols, tannins, β-carotene, lycopene, chlorophyll-α, and chlorophyll-β contents were found 154.13 mg GAE/g, 83.14 mg...

Author(s): Ummah Hafsa Mukta#, Roni Roy#, A. F. M. Shahid Ud Daula, Mahmuda Ferdous, Anwesha Chowdhury, Sohel Mia, Afroza Akter, Israt Jahan Liya and Mohammad Anwarul Basher  

January-March 2020

Journal of Veterinary Medicine and Animal Health
Identification of small ruminant external parasite species in Tanqua Abergelle and Kola Tembien districts of Tigray region, Northern Ethiopia

Ectoparasites are a major concern in sheep and goat flocks, wherever sheep and goat are kept. A cross-sectional study was carried out in the districts of Kola Tembien and Tanqua Abergelle from September 2014 to June 2017 with the objectives of identifying external parasites to their species level. Randomly selected sheep and goats were clinically examined for the presence of ectoparasites or lesions and identified in...

Author(s): Guash Abay  

March, 2020

Journal of Medicinal Plants Research
Evaluation of the antimicrobial activity of ethanol extracts from Orthostichella rigida (Mull. Hal.) B.H Allen & Magill (Bryophyta) on pathogenic microorganisms

1Universidade Estadual do Rio Grande do Sul (Uergs), Mestrado Profissional em Ambiente e Sustentabilidade, São Francisco de Paula, Rio Grande do Sul, Brasil. 2Universidade Estadual do Rio Grande do Sul (Uergs), Unidade Litoral Norte - Osório, Rio Grande do Sul, Brasil. 3Universidade do Vale do Taquari (Univates), Lajeado, Rio Grande do Sul, Brasil. 4Universidade Federal do Rio Grande...

Author(s): Christchellyn Klegin Rodrigues, Enio Lupchinski Júnior, Eduardo Miranda Ethur, Talita Scheibel, Bárbara Buhl, Neusa Fernandes de Moura and Juçara Bordin

January-March 2020

Journal of Horticulture and Forestry
Screening of tree seedling survival rate under field condition in Tanqua Abergelle and Weri-Leke Wereda’s, Tigray, Ethiopia

Rehabilitation of degraded lands through plantations is at the frontline of natural resource management in Ethiopia. However, plantations have been faced with various challenges mainly attributed to poor survival rate of tree seedlings. Hence, this research was conducted in Tanqua ‘Abergelle and Weri Leke Wereda’s with the objective of screening tree seedlings for their survival rates under field conditions....

Author(s): Gebrekidan Abrha, Sbhatleab Hintsa and Gebrekiros Gebremedhin  

January-June 2020

Journal of Oceanography and Marine Science
Heavy metal concentration and public health risk in consuming Sardinella maderensis (Sardine), Sarotherodon melanotheron (Tilapia), and Liza falicipinis (Mullet) harvested from Bonny River, Nigeria

Contamination of the river by oil spill had put the health of the people who consume fish at risk. Five fish samples each of Liza falicipinis (Mullet), Sarotherodon melanotheron (Tilapia) and Sardinella maderensis (Sardine) (n=15) were collected monthly from the Bonny Estuary from February to July 2018. The samples were oven dried at 100°C and analyzed using Atomic Absorption Spectrophotometer (Model pm ver 2.02...

Author(s): Celina Obeka and Aroloye O. Numbere  

March 2020

Educational Research and Reviews
Relationship between school, family and environment, according to school principals’ views

The aim of the study is to identify any possible deficiencies and disruptions that may be in the way of establishing a healthy cooperation between school, family and environment. It is a mixed research design study. Data were collected by scanning model and document analysis methods. Survey was used in the scanning model. The opinion of the N=50 school principals working in Rize Province of Turkey and the data obtained...

Author(s): Mehmet Ulker and Emel Terzioğlu Bariş

March 2020

Educational Research and Reviews
Comparisons of children’s level of recall: Stories told through e-book and picture book

Preschool period covers the years when the child is in a rapid change and development in every aspect. The learning experiences in this period affect children’s development. The developments in knowledge technologies affect the child's environment and children's books. This rapid change brings with it some discussions. “Do either traditional methods or digital applications affect children's level...

Author(s): Özkan Sapsağlam, Demet Aydın and Nazlıcan Toksoy

March 2020

Educational Research and Reviews
The Ottoman perception in process: Turkey social studies textbook analysis

In the study, it is aimed to determine whether there has been a change in the image of the Ottoman in the social sciences textbooks in the last ten years (2006-2017) in Turkey. The study was structured through document analysis technique based on qualitative research model. In the research, samples were determined in accordance with purposeful sampling technique. In compliance with that, the book of the authorized...

Author(s): Ahmed Emin OSMANOĞLU

January-June 2020

Journal of Environmental Chemistry and Ecotoxicology
Seasonal assessment of the physico-chemical properties of surface water and sediments in the vicinity of a scrap metal recycling industry in Southwestern Nigeria

The study assessed the seasonal variations in the physico-chemical properties of surface water and sediments in some villages located around a scrap metal recycling industry in Ile-Ife. This is with a view to monitor the impact of the industry on the quality of surrounding water. The three water bodies (one river, one stream and one pond) identified in the area were sampled every other month for ten months. Water and...

Author(s): Okoya, A. A., Elufowoju, M. A., Adepoju, K. A. and Akinyele, A. B.  

January-March 2020

International Journal of Water Resources and Environmental Engineering
Post drilling investigation for prolific groundwater aquifer using geoelectric logging at Nigeria LNG base, Port Harcourt

Post-drilling investigation for prolific groundwater aquifer was conducted in a well at the Nigeria LNG Base, Port Harcourt using geoelectric logging. Resistivity (Short Normal and Long Normal) and Self-Potential (SP) logs were employed. Two zones (A and B) were tested to determine the porosity (ɸ), permeability (k) and the total dissolved solids (TDS) in the aquifer. Results show that the inferred lithology in the...

Author(s): G. I. Alaminiokuma and T. Warmate  

March 2020

African Journal of Business Management
Factors affecting women entrepreneurs in establishing their own business: The case of Afar Region, Ethiopia

Women’s productive activities, particularly in industry, empower them economically and enable them to contribute more to overall development. Whether they are involved in small or medium-scale production activities, or the informal or formal sectors, women’s entrepreneurial activities  are not only a means for economic survival but also have positive social repercussions for the  women themselves...

Author(s): Demssie Amsalu Tadesse  

March 2020

African Journal of Biotechnology
MiR-124 involvement of apoptosis, immunity and regulator of diseases

Most microRNAs (miRNAs) are noncoding, conserved RNA molecules in vertebrates, and their roles are similar and very important. MiRNAs usually have tissue-specific expression, and abnormal levels of miRNAs have been associated with diseases and have been used as disease biomarkers. MiRNAs are widely involved in biological processes by regulating target mRNAs. MiR-124 is one of the best studied miRNAs in organisms. By...

Author(s): Hong-Yan Sun, You-Hua Huang, Zong-He Yu and Qi-Wei Qin  

March 2020

African Journal of Biotechnology
Association of probiotic potential of strains of Pichia kudriavzevii isolated from “ogi” with the number of open reading frame (ORF) in the nucleotide sequences

In this study, a total of 9 morphologically and biochemically different yeast species were isolated from Nigerian fermented food product, ‘ogi’. These yeast species were screened for probiotic properties such as antibacterial activities, acid and bile tolerance. Six species out of the yeast isolates that survived pH 2 were grown in 0.3% bile salts which were monitored by spectrophotometer for 5 h. Three...

Author(s): Tolulope P. Alakeji and Julius K. Oloke  

January-March 2020

Journal of Ecology and The Natural Environment
An assessment and local perception of sand deposits induced desertification in Sokoto State, Nigeria

Sokoto State is one of the states in Nigeria that are prone to desertification. This study attempts to identify and delimit areas affected by desertification in the three northernmost Local Government Areas of Sokoto State, namely: Illela, Gada and Tangaza. Field study was carried out to verify the incident and occurrence of desertification and the menace of sand deposition. A simple random sampling method with...

Author(s): Ganiy Ishola Agbaje, Bolarinwa Olutayo Balogun, Rufus Olakunle Oladosu, Abdul-Rahman Adeniran Adegbite, Olaleye Salu, Felix Nathaniel Buba, Arinzechukwu Charles Owoh and Timothy Oyesode  

March 2020

Educational Research and Reviews
Teachers perspective on the extent to which the national interactive curriculum scheduled for governmental kindergartens in Jordan take into account the psychological, social, aesthetic and cognitive foundations

The aim of this study is to know the extent to which the national interactive curriculum scheduled for governmental kindergartens in Jordan take into account the psychological, social, aesthetic and cognitive foundations are considered. The researchers used the analytical descriptive approach. The sample of the study consisted of all kindergarten teachers in the education districts of Central Badia Region. The sample...

Author(s): Mohammad A. Bani Khaled and Anoud Al-khresha  

March 2020

Educational Research and Reviews
Remote and rural placements occurring during early medical training as a multidimensional place-based medical education experience

The Northern Ontario School of Medicine delivers medical education aiming to improve the health outcomes for persons living in Northern Ontario, including those in underserviced rural and geographically remote communities. Second year students experience rural medicine and living during two four-week long placements set in remote and rural communities (RRCP) supervised by local physicians. This place-based approach to...

Author(s): Brian M. Ross, Erin Cameron, and David Greenwood,

March, 2020

African Journal of Agricultural Research
Multivariate analysis in the evaluation of sustrate quality and containers in the production of Arabica coffee seedlings

Coffee growing is recognized as an activity of great economic and social importance for Brazil. Obtaining good quality coffee seedlings is a major factor in the implantation of a productive and lasting crop. In view of the aforementioned, the objective of this study was to evaluate the quality of Arabica coffee seedlings produced with different substrates in different containers with multivariate analysis techniques....

Author(s): Mario Euclides Pechara da Costa Jaeggi, Richardson Sales Rocha, Israel Martins Pereira, Derivaldo Pureza da Cruz, Josimar Nogueira Batista, Rita de Kássia Guarnier da Silva, Magno do Carmo Parajara, Samuel Ferreira da Silva, André Oliveira Souza, Rogério Rangel Rodrigues, Wagner Bastos dos Santos Oliveira, Abel Souza da Fonseca, Tâmara Rebecca Albuquerque de Oliveira, Geraldo de Amaral Gravina and Wallace Luís de Lima  

March, 2020

African Journal of Agricultural Research
Effect of time of Azolla incorporation and inorganic fertilizer application on growth and yield of Basmati rice

Azolla tissue contains 5% N, which is slowly released into the soil upon decomposition. Timing of incorporation is therefore important for maximum benefit to a crop. The effect of time to incorporate Azolla biomass on growth and yield of rice was investigated in Mwea-Kenya. Treatments consisted of 7.5 t ha-1 Azolla biomass applied at transplanting, 7.5 t ha-1 Azolla applied at 21 days after transplanting (DAT) and 30 kg...

Author(s): W. A. Oyange, G. N. Chemining’wa, J. I. Kanya and P. N. Njiruh

January-March 2020

Journal of Development and Agricultural Economics
Slash-and-burn agriculture, the major cropping system in the region of Faradje in Democratic Republic of Congo: Ecological and socio-economic consequences

The present study aims to explore smallholder’s household living standard relevant to slash-and-burn agriculture, and determine trend of key crops grown with respect to their production and related generated average gross income in the region of Faradje, in the far northeastern region of the Democratic Republic of Congo (DRC). Surveys were conducted on agronomic and social economic characteristics prevailing in...

Author(s): Tanzito G., Ibanda P. A., Talaguma R. and Lusanga N. M.  

January-March 2020

Journal of Development and Agricultural Economics
Spatial price transmission between white maize grain markets in Mozambique and Malawi

The objective of this study was to measure white maize grain price transmission among markets in Mozambique and Malawi. Our analysis included two major deficit markets (Maputo in Southern Mozambique and Blantyre in Southern Malawi) and two major surplus markets (Chimoio in Central Mozambique and Nampula in Northern Mozambique). We used monthly wholesale white maize grain prices covering the period 2000 through 2016 to...

Author(s): Helder Zavale and Rafael da Cruz Macamo  

January-June 2020

Journal of Cereals and Oilseeds
Yield evaluation and character association of linseed (Linum usitatissimum L.) genotypes in moisture stress areas of South Tigray, Ethiopia

Linseed (Linum usitatissimum L.) is one of the most important highland oil crops of southern Tigray, Ethiopia and it is considered as the least expensive source for oil related home consumptions. The 12 genotypes of linseed including two standard checks were evaluated in the highland and moisture stress area of Southern Tigray under rain fed condition with the objective of evaluating yield and yield components as well...

Author(s): Birhanu Amare Gidey  

January-March 2020

Journal of Plant Breeding and Crop Science
Variability, Association and Path Coefficient Analysis of Green Pod Yield and Yield Components of Hot pepper (Capsicum annuum L.) Landraces at Mereb Lehke, Northern Ethiopia

Understanding the genetic variability and diversity of crops is the basis for breeding and improving of crops. Sixty four Ethiopian hot pepper genotypes were evaluated in 8×8 simple lattice design for genetic variability in green fruit yield and yield related traits at Axum Agricultural Research Center during 2018/2019 under irrigation. Data were collected on green pod yield and yield related characters. The...

Author(s): Fasikaw Belay and Yemane Tsehaye  

January-March 2020

International Journal of Nutrition and Metabolism
Vitamin D status of pregnant Moroccan women during the last gestational trimester

This work is a prospective study that aims to evaluate the vitamin D status of Moroccan women during the last trimester of their pregnancy to establish the prevalence of hypovitaminosis D. We carried out, within the Mohammed V Military Teaching Hospital (HMIMV), a six-month prospective study on the vitamin status D of 152 Moroccan women during their last gestational trimester. Maternal blood was collected at the...

Author(s): Raoul Karfo,, Marie-Christelle Yélamto Touré, Aboubacar Dit Tietie Bissan, Elie Kabré, Jean Sakandé, Rahali Driss Moussaoui, and Saida Tellal,  

January-March 2020

International Journal of Nutrition and Metabolism
The level of adherence to food by prescription (FBP) program among adults living with HIV/AIDS in Addis Ababa City, Ethiopia: A facility-based cross-sectional study

Considering the importance of nutritional health for people living with HIV, programs delivering nutritional support have been scaled up globally. Among various programs, the Food by Prescription (FBP) program has been implemented in Ethiopia since 2010. This study was undertaken to assess the level of adherence to the FBP program and identify the associated factors among HIV infected adults. Facility-based...

Author(s): Biniyam D. Kabtyimer, Ribka D. Gebre and Tesfalem T. Tessema  

March, 2020

Journal of Medicinal Plants Research
Evaluation of the toxic effects of the bottled medicine (garrafada) containing the Echinacea purpurea, Annona muricata, Tabebuia avellanedae, Pterodon emarginatus and Uncaria tomentosa in rats

This study evaluated if the oral administration of a bottled medicine containing Echinacea, Graviola, Purple Ipe, Sucupira and Cat’s claw could cause changes in biochemical, coagulation, hematological and histopathological parameters in rats. This study arised after a report to Ceatox of a patient who used a bottled medicine and developed hematological, renal and histopathological changes. The bottled medicine...

Author(s): Denise Michelle Indras, Carla Brugin Marek, Ana Julia Penteado, Fabiana Sari Ferreira, Fernanda Coleraus Silva and Ana Maria Itinose  

March 2020

African Journal of Business Management
Technology and government regulation: A conceptual perspective of entrepreneurial orientation on creditworthiness of micro-enterprises

Owing to globalization, enterprises continue to face increasing pressure from competition across the globe. When compounded with the changing needs of customers, complex business uncertainty and market instability, it becomes apparent that enterprises face increasing challenges in improving and maintaining business performance over time unless they actively manage these pressures. Entrepreneurs need to embrace an...

Author(s): Lydiah N. Zachary, Bitange Ndemo and Kennedy O. Ogollah

January-March 2020

International Journal of Nursing and Midwifery
Nurses’ perspectives about context specific job factors and coping strategies for back pain experiences among nurses in Lusaka, Zambia: A qualitative study

Nurses comprise the largest group of the health care workforce and play a central role in patient care activities. This study explored nurses’ perspectives about context specific job factors and coping strategies for back pain experiences among nurses in Lusaka, Zambia. An interpretive paradigm qualitative research design was used. Participants were selected using maximum variation including enrolled and...

Author(s): Loveness A. Nkhata, Yolandi Brink, Dawn Ernstzen and Quinnette A. Louw  

March, 2020

Journal of Medicinal Plants Research
Evaluation of the biological activities of leaf and bark extracts of Ficus platiphylla Delile, a medicinal plant used in Mali

Leaves and barks of Ficus platiphylla are used in traditional medicine in western Africa for treating bacterial infections. The aim of this work was to screen the biological activities of extracts of the plant. Three common bacterial strains were used in this study. The antiradical and antibacterial activities were assessed respectively by spectrophotometric and agar diffusion methods. The bark and leaves are very rich...

Author(s): Mamadou Abdoulaye Konaré, Nouhoum Diarra, Cheickna Cissé,  Daouda Abdoul Karim Traoré,, Issiaka Togola, Adounigna Kassogué, Rokia Sanogo, and Aboubacar Sidiki Ouattara  

January-March 2020

Journal of Development and Agricultural Economics
Assessing the likelihood of adoption of orange-flesh sweet potato genotypes in Sierra Leone

The adoption of research outputs to bring the desired impacts is a major factor of any research work. Based on this premise, adoption likelihood analysis was used to determine the maximum likelihood of adoption of orange flesh sweet potato (OFSP) in Sierra Leone. The study was conducted in Western Area, Moyamba, Bo, Kenema and Bombali districts. A multi-stage sampling procedure was employed to select the study samples....

Author(s): Osman Nabay, Martin Koroma, Adolphus Jeremy Johnson, Emmanuel Sahr Hinckley, Gibrilla Dumbuya and Jebeh Samba-Bakar  

January-March 2020

Journal of Development and Agricultural Economics
Evaluation of technical efficiency of edible oil production: The case of canola production in Kieni West Constituency, Kenya

Globally, the vegetable oil demand is growing due to rising food consumption in emerging countries such as China and due to the high demand for biofuels. The current world vegetable production estimates stand at 187 million tons for the year 2016/2017. Of the estimated vegetable oil production, 70.3 million tons (37.6%) comes from palm and palm kernel, 55 million tons (30%) arise from soybean while the remaining 32.5%...

Author(s): Crispas Muiru Wambui and Eucabeth Majiwa  

January-March 2020

Journal of Horticulture and Forestry
Evaluation of multi-functional fodder tree and shrub species in mid-altitudes of South Omo Zone, Southern Ethiopia

A study was conducted to evaluate the early growth performance and nutrient composition of some selected tree/shrub species in the fodder bank agroforestry system. Moringa stenopetala, Terminalia brownii, Morus alba, Melia azedarach, and Sesbania sesban were used for this study. Square quadrants of 16 m2 plot sizes were established with the RCBD of three replications. Seedlings were planted with 1 m × 1 m spacing...

Author(s): Asmelash Tesfaye Gebremedhin Alemayehu Hido Gedo Getahun Yakob Edo and Shimelis Tessema Haile  

January-March 2020

Journal of Plant Breeding and Crop Science
Evaluating natural infection of fungal, bacterial and viral pathogens to dry bean genotypes under field conditions

Fungal, bacterial and viral diseases are economic foliar diseases that cause yield losses, between 40 and 100%, in commonly grown dry bean cultivars in the world. Development of disease resistance genotypes is a complex interaction between genetic and environmental factors. This study focused on determining the natural infection of disease-causing pathogens of angular leaf spot, powdery mildew, bacterial blight and bean...

Author(s): Papias H. Binagwa, Guohao He, Marceline Egnin, Gregory C.  Bernard, Desmond Mortley and Conrad K. Bonsi  

January - March 2020

Journal of Public Health and Epidemiology
Evaluation of the delivery of biological specimens from health care facilities to the National Laboratory in Abidjan, Cote D’ivoire

In 2018, the National Institute of Public Hygiene (INHP) signed an agreement with a courier deliver company to transport specimens from health facilities at district level to the national laboratory in Abidjan. This study aims to evaluate the quality of the specimens transport system, one year after implementation. The duration of specimen’s delivery was used as a quality indicator. It is the difference between...

Author(s): Kadjo Florence, Ngattia Anderson, Savané Sita,  Koffi Félix, Beugré Landry and Coulibaly Daouda

January-March 2020

Journal of Ecology and The Natural Environment
Structure of Acacia senegal (L.) wild settlements in southwest Niger: Case of the gum tree site in the rural district of Guéchémé

This study conducted in the rural district of Guéchémé (Tibiri county, Dosso region, Niger) aims at characterizing Acacia senegal settlements of the village of Lido. The methodology consisted in floristic sampling of 1000 m2 plots, measuring diameters 20 cm off the ground for shrubs and 1.30 m for trees. The results made it possible to determine the structure of A. senegal, representing significant...

Author(s): Abdoul Kader Soumaila SINA, Abdou AMANI, Laouali ABDOU, Amadou GARBA and Ali MAHAMANE,

March, 2020

African Journal of Agricultural Research
Ultraviolet B radiation affects growth, physiology and fiber quality of cotton

The effects of artificial biologically effective UV-B radiation on a range of growth and physiological parameters in two cotton (Gossypium hirsutum L.) cultivars (Romanos and Allegria) were recorded. Three levels of biologically effective UV-B were used: (1) zero (2) ambient and (3) elevated (determined as that associated with a notional 15% depletion of stratospheric ozone). Plants were grown under artificial light in...

Author(s): Demetrius Zouzoulas, Emmanuel Vardavakis, Spyridon D. Koutroubas, Andreas Kazantzidis and Vasileios Salamalikis  

March, 2020

African Journal of Agricultural Research
Contribution of parkland agroforestry in supplying fuel wood and its main challenges in Tigray, Northern, Ethiopia

Agroforestry is an aged practice in the Ethiopian farming systems of which parkland trees comprise the large part of agricultural landscapes. It is also the most dominant agroforestry practice in the semi-arid and sub-humid zones of Ethiopia. However, there is lack of research based evidence that shows the contribution of parkland agroforestry on fulfilling households’ fuel wood demand and towards improving the...

Author(s): Kahsay Aregawi Hagos  

January-March 2020

African Journal of Pure and Applied Chemistry
Synthesis and characterization of carboxymethyl cellulose from Musa paradisiaca and Tithonia diversifolia

Cellulose is the most abundant biomass in nature with properties that have enabled its application in different industrial processes. Its derivative, sodium carboxymethyl cellulose serves as an additive in food and non-food products such as desserts, detergents, paints etc. In this study, carboxymethyl cellulose (CMC) was synthesized from cellulose isolated from three ligno-cellulosic biomass, Tithonia diversifolia...

Author(s): Alabi F. M., Lajide L., Ajayi O. O., Adebayo A. O., Emmanuel S. and Fadeyi A. E.  

January-March 2020

Journal of African Studies and Development
Gendered patterns of labour-force participation and productivity in tourism and hotel sectors in Arusha and Moshi urban areas, Tanzania

This study examines the position of gendered labour participation in influencing gendered productivity within the hotel and tourism sectors of the Tanzanian economy. The study aims to identify and analyse the extent to which gendered labour participation influences productivity of some selected firms in Tanzania.  Drawing on a survey of hotels and tour operators in Arusha and Moshi, this study took a holistic...

Author(s): George Felix Masanja  

January-March 2020

Journal of African Studies and Development
Towards a theoretical model linking university education to climate change interventions in the African context

Climate change education continues to gain popularity among educationalists especially at university level. The Paris Agreement on climate change 2015 advocated for support towards this approach especially for universities in the developing nations. This paper aims to present a model linking university education to climate change interventions in the African context. This model has been developed based on findings from...

Author(s): David Ssekamatte  

January-March 2020

Journal of Geology and Mining Research
The geotechnical properties of the oolitic ironstone formation, Wadi Halfa, North Sudan

Wadi Halfa Oolitic Ironstone Formation (WHOIF) covers large areas around Wadi Halfa border town in Northern Sudan. The detrital framework grains of sandstone of WHOIF are composed of sub-angular to sub-rounded quartz grains followed by feldspars, lithic fragments, micas and heavy minerals. The dominant cementing materials are iron oxides, carbonate cement, and some clay minerals. Twelve block samples were carefully...

Author(s): Abazar M. A. Daoud, Rashed M. A., Elsharief A. M., Kadry N. Sediek and Elamein, A. M.  

February 2020

African Journal of Microbiology Research
MALDI-TOF identification of Campylobacter isolated from patients consulted in private laboratories in France

Campylobacter is a major agent of gastroenteritis worldwide. The incidence and prevalence of campylobacteriosis have been increasing in both developed and developing countries over the last decade. In this study, 197 strains of successive Campylobacter-like were identified in French laboratories in September 2018. Bacterial isolates from clinical samples were identified with a mass spectrometer (Ultraflex III TOF/TOF...

Author(s): René Dembélé, Astrid Ducournau, Alice Buissonnière, Lucie Bruhl, Francis Megraud, Emilie Bessède, Nicolas Barro, and Philippe Lehours,  

February 2020

Educational Research and Reviews
The level of readability of the computer sciences textbook among the eleventh grade students in Jordan

This study aimed to identify readability level of computer science textbooks among the Jordanian eleventh grade students. A cross-sectional, descriptive study was conducted. The study population consisted of all eleventh graders of Al-Mafraq education directorate. The study sample comprised 122 male and female eleventh graders, chosen by intended sampling method from two public schools. However, to answer the research...

Author(s): Khalid Qudah, Mohammed Kh. Muflih and Sana’a Sardiah  

January-March 2020

International Journal of Sociology and Anthropology
Possible selves of a hashtag: Moving from the theory of speech acts to cultural objects to interpret hashtags

In recent years hashtag studies have increased their numbers. The role of hashtags becomes increasingly predominant in social media studies. Many researchers wonder how to study them, ending up treating them in an aggregate way and turning to big data and static-mathematical modeling. This type of studies seem to consider hashtags as tools, favoring a single analysis perspective. In fact, The studies and the research...

Author(s): Gevisa La Rocca

February 2020

African Journal of Biotechnology
Immobilization of the Carioca bean (Phaseolus vulgaris L.) extract on SiO2-TiO2 aiming the determination of the herbicide Simazine

Pesticides are identified as hazardous contaminants due to high toxicity and persistence in the environment. In this context, it is necessary to monitor these pollutants in the environment in situ, with the use of low cost analytical techniques and of quick response. Biosensors are presented as a complementary analytical tool to more complex techniques, such as chromatography. The present work aims to develop, in a...

Author(s): Francisca das Chagas Sobral Silva Mihos, Emerson Schwingel Ribeiro, Maria Helena Wohlers Morelli Cardoso, Lucia Helena Pinto Bastos, Lívia Maria da Costa Silva and Andréa Medeiros Salgado  

February 2020

African Journal of Microbiology Research
Biofilm-inhibition activities of fractions of Senna Siamea (LAM) Irwin & Barneby leaf against Escherichia coli

Escherichia coli has carved its niche in the urinary tract with the formation of a formidable matrix called biofilm. This biofilm is not only recalcitrant to the body’s immune system but also resistant to antibacterial agents. Senna siamea (Lam) Irwin and Barneby is a medicinal plant with established antibacterial effect against planktonic cells of many bacteria. An attempt was made herein to evaluate the effect...

Author(s): Usman N. A., Adeshina G. O., Tytler B. A. and Abdulrahim U.

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