Articles

 

Page 3 of 1182, showing 50 records out of 59054 total, starting on record 101, ending on 150

February 2020

African Journal of Microbiology Research
Biological activity and production of metabolites from Amazon endophytic fungi

Obtaining bioactive metabolites from endophytic microorganisms has become increasingly more interesting in the last few decades, since endophytes are known for their biotechnological potential. However, studies involving endophytic microbiota from tropical hosts are still scarce. In this study, the production of bioactive metabolites from endophytic fungi isolated from Amazonian plants were evaluated. Two fungi...

Author(s): Raiana Silveira Gurgell, Juliana Gisele Corrêa Rodrigues, Rosiane Rodrigues Matias, Bárbara Nunes Batista, Rafael Lopes e Oliveira and Patrícia Melchionna Albuquerque,  

January-March 2020

Journal of Development and Agricultural Economics
Determinants of recommended agronomic practices adoption among wheat producing smallholder farmers in Sekela District of West Gojjam Zone, Ethiopia

Development of the Ethiopian economy is directly related to the transformation of the agricultural sector which is manifested with low utilization of recommended agronomic practices, improved farm inputs, and dependency on traditional farming and rainfall. As a result, low production and productivity of agriculture were prevalent over the last years. This study aims to identify the factors influencing adoption of...

Author(s): Gedefaw Abebe and Sisay Debebe  

January-June 2020

Journal of Environmental Chemistry and Ecotoxicology
Impact of industrial effluents, domestic wastewater and natural dams on heavy metals concentrations in vegetables cultivated in Northern Nigeria

Vegetable cultivation is increasing because of its health benefit. However, in areas with limited fresh water, irrigation is from industrial and domestic wastewaters. Consumption of crops with high heavy metal content poses concern to health. A comparative analysis was conducted using AAS (Atomic Absorption Spectrophotometer) to determine the concentration of heavy metals in some vegetables irrigated with industrial...

Author(s): Emmanuel Bernard and Olayiwola, M. Ayandeji  

February 2020

African Journal of Environmental Science and Technology
Impacts of climate change on sorghum production in North Eastern Ethiopia

Climate change/variability is a global concern that is seriously affecting developing and least developed countries which rain-fed based agriculture is predominantly the basis for  their livelihood and socio-economic system. Adverse impacts of climate change and variability, in most developing and least developed countries like Ethiopia, is growing in time and exert pressure on agricultural systems which changes...

Author(s): Eshetu Zewdu, Gebre Hadgu and Lisanework Nigatu  

February 2020

African Journal of Environmental Science and Technology
Comparative study of physicochemical parameters of wastewater discharged at the beaches of the Dakar Coast

The region of Dakar is characterized by a high population density often leading to a problem of development of the sewage network not equipped with a treatment station. The ejection of these raw untreated waters on the Dakar coast continually causes pollution of bays, seawater and threatens life in the aquatic environment and human health. The objective of this study is to assess the physicochemical quality of the...

Author(s): Dame Cisse, Birame Ndiaye, Momar Ndiaye, Ibrahima Diagne, Cheikh Tidiane Dione, Maoudo Hane and Abdoulaye Diop

February, 2020

African Journal of Pharmacy and Pharmacology
Antiproliferative and cytotoxic activity of Hematite (α-Fe2O3) nanoparticles from Butea monosperma on MCF-7 Cells

Silver nanoparticles (Hematite (α-Fe2O3) have been used as an antimicrobial and as disinfectant. Nevertheless, there is limited data about its antitumor potential. This study focused on investigating the cytotoxic effects of Hematite (α-Fe2O3) from Butea monosperma flower extract on MCF-7 breast cancer cells and its mechanism of action.  Green method was created for the synthesis of Hematite...

Author(s): B. Behera, S. Pradhan, A. Samantaray and D. Pradhan  

January-March 2020

International Journal of Psychology and Counselling
Social guidance and counselling support services on the study habits of distance learners: A case of learners in Bachelor of Education programmes by distance learning of University of Nairobi, Kenya

Distance learners in some studies have reported feelings of isolation and lack of direction in developing effective study habits. The purpose of this study is to establish the extent to which social guidance and counselling influence study habits of learners in Bachelor of Educational programmes by distance learning of the University of Nairobi. Data were collected using structured questionnaire. Simple random and...

Author(s): Janet Orero Obiero, Charles Kimamo and Anne Assey  

February, 2020

Journal of Medicinal Plants Research
Systematic review: Medicinal use and scientific elucidation of the Piper genus for the treatment of symptoms and inflammatory diseases

The aim of this study was to conduct a systematic review that reported the medicinal use of the genus Piper, and pharmacological elucidations for the treatment of symptoms and processes of inflammation and inflammatory diseases. The systematic review was prepared in accordance with PRISMA guidelines. The databases used for this research were the Web of Science and Scopus, where associations with the terms were applied...

Author(s): Cícera Norma Fernandes Lima, Luciene Ferreira de Lima, Denise Bezerra Correia, Sara Tavares de Sousa Machado, Jéssica Pereira de Sousa, Enaide Soares Santos, Gyllyandeson de Araújo Delmondes, Irwin Rose Alencar de Menezes, Cícero Francisco Bezerra Felipe, Henrique Douglas Melo Coutinho and Marta Regina Kerntopf  

January-March 2020

Journal of Plant Breeding and Crop Science
Identification of single nucleotide polymorphism (SNP) markers closely linked with powdery mildew resistance gene Pm5e in wheat

Wheat (Triticum aestivum L.) is one of the most important food crops worldwide. Powdery mildew (Pm), caused by Blumeria graminis f. sp. tritici is a severe disease in wheat production. Gene Pm5e, from a Chinese wheat cultivar Fuzhuang 30 has proven to be a valuable resistance source for Pm in breeding. To further map this gene and develop Kompetitive allele-specific PCR (KASP) assays for marker-assisted selection (MAS),...

Author(s): Xiufang Yuan, Honggang Wang and Shubing Liu  

February 2020

African Journal of Plant Science
Morphological traits associated with anthracnose (Colletotrichum lindemuthianum) resistance in selected common bean (Phaseolus vulgaris L.) genotypes

Common bean is among the most important legume crop for protein source in people’s diet globally and including Kenya. Anthracnose is a common disease of legumes that causes yield loss of up to 90-100%. The aim of the study is to investigate the morphological traits associated with anthracnose resistance in selected common bean genotypes in Kenya. The study was done in three varied agro-ecological zones; University...

Author(s): Gaudencia J. Kiptoo , Miriam G. Kinyua , Lexa G. Matasyoh, and Oliver K. Kiplagat  

February 2020

African Journal of Plant Science
Evaluation of the relative feed value of indigenous savanna forage shrub species in Ghana

Animal performance mainly depends on the quantity and quality of forage available as feed and animal feed represents one of the major costs in animal production. This research was conducted in the Faculty of Natural Resources and Environment Experimental Field at University for Development Studies, Nyankpala Campus to evaluate the relative feed value of four indigenous savanna forage shrubs. These shrubs were cultivated...

Author(s): Ziblim Abukari Imoro  

February 2020

African Journal of Microbiology Research
Phylogenetic analysis of multidrug resistant E. coli isolates from the urinary tract in Bushenyi district, Uganda using the new Clermont phylotyping method

Due to the increasing rates of multidrug resistance (MDR) among the Enterobacteriaceae that cause urinary tract infections (UTIs), selection of antimicrobial agents for empirical therapy is becoming a major challenge. This study determines the antimicrobial resistance profiles, multidrug resistance profiles, multiple antibiotic resistance indices (MARI), factors associated with MDR UTIs and the phylogenetic groups of...

Author(s): Martin Odoki, Adamu Almustapha Aliero, Julius Tibyangye, Sarah Kemuma Onkoba, Bashir Alkali, Josephat Nyabayo Maniga, Emmanuel Eilu, Eddie Wampande, Charles Drago Kato, Ezera Agwu, and Joel Bazira

February 2020

Educational Research and Reviews
Evaluation of the reading habits of Indian students (reading aloud and reading silently) from low, middle and high class schools

Language acquisition and memory models are created more quickly in the brain in early childhood. If reading habit is cultivated in children early, it will enhance their language skills and perception. This study aims to evaluate the conventional practices of reading habits in Indian children from lower, middle, and upper socio-economic backgrounds and to suggest some new methods based on the results of a survey using...

Author(s): Lalit Gehlot, Hailah A Al-Khalaf, and Himani Gehlot  

February 2020

African Journal of Biotechnology
Isolation of ursolic acid from the leaves of Ocimum lamiifolium collected from Addis Ababa Area, Ethiopia

Ocimum lamiifolium is a well known medicinal plant in Ethiopia. Fresh leaves of the plant are squeezed and sniffed to treat colds and coughs and as an eye rinse for eye infections, while crushed leaves are used to arrest nose bleeding. In this study phytochemical investigation on the methanol extracts of this plant collected from Addis Ketema subcity, Addis Ababa. A triterpene, namely ursolic acid, was isolated using...

Author(s): Girma Birhanu  

January-June 2020

International Journal of Genetics and Molecular Biology
Morphological diversity patterns among selected elite Shea trees (Vitellaria paradoxa C.F. Gaertn.) from Tchologo and Bagoué districts in Northern Côte d’Ivoire

Agromorphological diversity structure of the elite shea trees identified in village lands and conserved in situ in the districts of Bagoué and Tchologo by the shea breeding program of the University of Peleforo Gon Coulibaly (UPGC, Côte d’Ivoire), are not known. In the present study, we characterized the agromorphological parameters of 220 elite shea trees using a set of 12 quantitative traits. The...

Author(s): YAO Saraka Didier Martial, DIARRASSOUBA Nafan, ATTIKORA Affi Jean Paul, FOFANA Inza Jesus, DAGO Dougba Noel, SILUE Souleymane and VANDERSCHUREN Hervé  

January-March 2020

Journal of Plant Breeding and Crop Science
Genotype by environment interaction and yield stability analysis of open pollinated maize varieties using AMMI model in Afar Regional State, Ethiopia

The present study attempts to analyze the magnitude of GxE interaction and evaluates the adaptability and stability of open pollinated maize genotypes for grain yield, using AMMI (Additive Main Effects and Multiplicative Interaction) model. The field experiment was conducted for two consecutive years during the off seasons of 2016/17 and 2017/18 at three locations namely, Awra, Dalifage and Dubti. The experiment in each...

Author(s): Mohammed Abate  

February 2020

African Journal of Medical and Health Sciences
Sero-prevalence of Hepatitis B and C infection among patients with end stage renal disease at haemodialysis initiation

Hepatitis sero-positivity at initiation of haemodialysis may suggest a causal role or arise due to repeated blood transfusions and reduced immunity associated with advanced chronic kidney disease.  This study was to determine the sero-prevalence of Hepatitis B and C infection at initiation of haemodialysis, and describe the clinical characteristics and outcome of patients.  This is a cross-sectional study of...

Author(s): Ogochukwu Chinedum Okoye  

February, 2020

African Journal of Agricultural Research
Analysis of farmers’ perceived and observed climate variability and change in Didessa sub-basin, Blue Nile River, Ethiopia

Farmers’ local knowledge of how the climate is changing is crucial in anticipating the effects of climate change, as only farmers who know/perceive the impacts will develop coping and adaption measures. The study is designed to assess farmers’ perception and understanding in climate variability and change and to establish the observed climate change parameters with farmer’s perception and climate...

Author(s): Chala Dechassa, Belay Simane and Bamlaku Alamerew  

February, 2020

African Journal of Agricultural Research
Identification and mapping QTLs of bolting time in purple cai-tai (Brassica rapa L. var. purpurea)

Bolting time is a crucial agronomic trait for yield and quality in purple cai-tai (Brassica. rapa L. var. purpurea), but the genetic mechanism controlling the procedure remains unknown. In the present study, a double haploid (DH) population derived from two inbred lines of purple cai-tai 4-1 and 040-3 was constructed to identify the quantitative trait loci (QTLs) of bolting time. Genetic linkage map was performed by...

Author(s): Xiao-Hui Deng, Qi-Jun Nie, Zheng-meng Qiu, Cai-xia Gan, Lei Cui, and Feng-Juan Zhu,  

February, 2020

African Journal of Agricultural Research
Sensory evaluation of coffee cultivars in the Campo das Vertentes Mesoregion, Minas Gerais

The objective of this study was to evaluate the sensory characteristics of coffees from Coffea arabica L. groups, in municipalities located in the Campo das Vertentes mesoregion, in the State of Minas Gerais. Natural and parchment coffees, after drying, consisted of 100% mature fruits. The experiment was carried out on 14 coffee farms located in the municipalities of Carmo da Mata, Oliveira, Santo Antônio do...

Author(s): Bruno Batista Ribeiro, Antonio Nazareno Guimarães Mendes, Alex Mendonça de Carvalho, Francisco Mickael de Medeiros Câmara and Renato Ribeiro Lima

January-March 2020

Journal of Plant Breeding and Crop Science
Fusarium oxysporum Race 1 resistance and quality traits variations in apple banana germplasm

Musa species, AAB genome group, commonly known as Sukali Ndizi (SND) in Uganda, has attained a substantial commercial value in the recent past owing to its superior fruit quality attributes and better prices. However, its sustainable production and productivity are highly threatened by Fusarium wilt. To facilitate large scale area expansion of this important dessert banana, the present study was carried out to identify...

Author(s): Henry Buregyeya,, Robooni Tumuhimbise, Moses Matovu, Kashub S. Tumwesigye, Jerome Kubiriba, Kephas Nowankunda, Wilberforce K. Tushemereirwe,  Deborah Karamura, Eldad Karamura, Robert M. Kityo and Patrick Rubaihayo  

January-March 2020

Journal of Agricultural Extension and Rural Development
Comparison between public and private extension services for sugarcane production in Muzaffargarh District, Punjab, Pakistan

Sugarcane industry is at second position after textile industry in Pakistan. By the export of refined sugar, it plays a significant role in the economy of the country. Public and private sectors extension field staff work with sugarcane growers to improve their per acre yield. The research was conducted to compare and identify the services provided by those two sectors. A total of 150 respondents were selected randomly...

Author(s): Muhammad Zahid Farooq, Badar Naseem Siddiqui, Khalid Masud, M. Rameez Akram Khan, Waqar-ul-Hassan Tareen, Muhammad Ali, Adnan Rayit, Syed Ali Asghar Shah, Khawaja Muhammad Dawood, Muhammad and Ghazanfar Naeem  

January-June 2020

Journal of Petroleum and Gas Engineering
Performance evaluation of Mucuna solannie as a drilling fluid additive in water-base mud at cold temperature

Weighted and unweighted aqueous mud formulations from a biomaterial, at cold temperature of 5°C, were tested for their rheological characteristics. Based on API guidelines and recommended equipment for drilling fluid tests, the rheological properties of the formulations were determined. The muds exhibited pseudoplastic behaviour. The fluid loss volumes of the weighted and unweighted muds are 14 and 21 ml,...

Author(s): Duru U. I., Onyejekwe I. M., Isu D. O., Uwaezuoke N. and Arinkoola A. O.  

January-March 2020

Journal of Economics and International Finance
Causal links between foreign direct investment and import demand in ECOWAS Countries: A view through meta-analysis

This study examines the relationship between Foreign Direct Investment (FDI) and import demand for 11 member countries of the Economic Community of West African States (ECOWAS) during the period 1970-2017. We employ a causality test based on Meta-analysis which considers the issues of cross-sectional dependency and slope heterogeneity among countries. The empirical findings indicate that the causal nexus between FDI and...

Author(s): Keho Yaya  

January-March 2020

Journal of Accounting and Taxation
The impact of value-added tax (VAT) implementation on Saudi banks

The study aims to identify the impact of value-added tax (VAT) on Saudi banks, through measuring the impact of changes in the banks before and after the implementation of Value Added Tax (VAT), in all of total assets, total liabilities, customer deposits, retained earnings, total operating income, total operating expenses and net operating income. The study targeted the fourth quarter of 2017 (before the implementation...

Author(s): Meshari Alhussain  

February 2020

African Journal of Biotechnology
Morpho-molecular screening of wheat genotypes for heat tolerance

Wheat (Triticum aesum L.) production in Bangladesh is often impaired by heat stress. Therefore, it has been a priority to develop heat tolerant wheat variety for Bangladesh. An investigation was carried out to evaluate locally cultivated wheat genotypes for heat tolerance based on morpho-physiological and molecular markers. A pot experiment was carried out with ten locally cultivated wheat genotypes. Heat treatment was...

Author(s): Nihar Ranjan Saha, Md.Tariqul Islam, Md. Monirul Islam and Muhammad Shahidul Haque  

February 2020

African Journal of Biotechnology
Genetic diversity among Ethiopian sorghum [Sorghum bicolor (L.) Moench] gene bank accessions as revealed by SSR markers

The presence of genetic variation in plant populations is useful for conservation and use in breeding programs. This study was conducted to estimate the extent and patterns of genetic diversity among 200 sorghum accessions collected from different parts of Ethiopia and preserved in a gene bank.  Using 39 polymorphic simple sequence repeat (SSR) markers, which were previously mapped, 261 alleles were produced with...

Author(s): Alemu Tirfessa, Tesfaye Tesso, Asfaw Adugna, Hussein Mohammed and Dan Kiambi  

February 2020

African Journal of Biotechnology
Introduction of the exotic breeds and cross breeding of local chicken in Ethiopia and solution to genetic erosion: A review

This study reviews the introduction of the exotic breeds and cross breeding of local chicken in Ethiopia, solution to genetic erosion and needs for conservation with aim of delivering in the short form and clear information for beneficiaries and to whom it may concern. Poultry production and its product consumption are progressively increasing globally. In Ethiopia, chicken production plays a great role as a primary...

Author(s): Yonas Kejela  

February 2020

African Journal of Biotechnology
Effect of methanolic extract of Dennettia tripetala (pepper fruit) on biomarkers of oxidative stress and lipid peroxidation in type 2 diabetic male wistar rats

Oxidative stress resulting from chronic hyperglycemia in diabetes is due to high production of reactive oxygen species and/or a decrease in the antioxidant defense system activity. The study was designed to investigate the ameliorative effect of methanolic extract of Dennettia tripetala (DT) on oxidative stress and blood glucose level in type II diabetic male Wistar rats. Type II diabetes was induced by a single...

Author(s): Nwaeme Ogochukwu, Ude Victor Chibueze, Augustine Ndubuisi, Ugwudike Patrick, Agu Francis, Celestine Ani, Emeka Ugwuishi, Sunday Njoba, , Lilian Ndubuisi, , Hector Obianyido, Joachin Ezeokeke and Nwachukwu Daniel  

January-June 2020

Journal of Diabetes and Endocrinology
Non-adherence to selected self-care actions and its determinants among adults with type 2 diabetes mellitus in a tertiary hospital in Enugu State Nigeria

The study determined the prevalence of non-adherence to medication, self monitoring of blood glucose (SMBG), clinic visits and the associated factors among out-patient type 2 adult diabetics at a tertiary hospital in Enugu State Nigeria. Using a descriptive cross-sectional design, 200 patients was purposively selected. Researcher-developed questionnaire was tool for data collection. Analysis was done in proportions,...

Author(s): Hope Chizolum Opara, Agnes Nonyem Anarado, Chinenye Juliet Anetekhai, Peace Njideka Iheanacho, Ijeome Lewechi Okoronkwo and Adaobi Lilian Obuekwu

January - March 2020

Journal of Public Health and Epidemiology
A mixed method approach for the assessment of demand creation intervention strategy for polio eradication on exclusive breast feeding in Northern Nigeria

The Federal Ministry of Health, Nigeria introduced incentives such as sachets milk powder to increase demand for oral polio vaccine (OPV). This study assessed whether the milk encourages the use of breast milk substitutes thereby dis-incentivising exclusive breastfeeding (EBF) in children during the first six months of life. A cross sectional design with mixed method was used for collecting quantitative and qualitative...

Author(s): Oladele Akogun, Omolola Olojede, Adedoyin Adesina and Sani Njobdi  

February, 2020

African Journal of Agricultural Research
Heterosis and combining ability for storage root, flesh color, virus disease resistance and vine weight in Sweet potato [Ipomoea batatas (L.) Lam.]

This study was done to determine the mid-parent heterosis, the general (GCA) and specific (SCA) combining abilities of storage root yield, sweet potato virus resistance (SPVD), flesh color and vine weight of candidate sweet potato clones. Sixteen selected genotypes from two gene pools were crossed in an 8B×8A cross having 64 families. Trials were conducted with 1,896 offsprings and 16 parents during two seasons at...

Author(s): Aliou Ba., Dorcus C. Gemenet, Justus Onguso, Diaga Diouf, Thiago Mendes, Reuben T. Sali, Robert O. M. Mwanga and Mercy Kitavi  

January-March 2020

Journal of Development and Agricultural Economics
Measuring rural poverty among rural households in Gedeo Zone, SNNP Region, Ethiopia

Poverty is a phenomenon that is complex and has multidimensional features. It involves people experiencing various degrees of material deprivation; the concept is used to cover a wide ranging set of interrelated life chances. The purpose of this study was to measure poverty in rural Gedeo zone, southern Ethiopia with specific objectives of measuring poverty among the rural households. The research was undertaken using a...

Author(s): Berhanu Getinet Kibret  

January-March 2020

International Journal of Livestock Production
Characterization of Begait cattle using morphometric and qualitative traits in Western Zone of Tigray, Ethiopia

The aim of the study is to characterize Begait cattle using morphometric and qualitative traits. The breed was kept under farm and ranch management systems in Western Tigray, Ethiopia. A total of 368 Begait cattle which included 24 male Begait cattle were selected using simple random sampling method and the data were analyzed using statistical packages for social sciences and statistical analysis software. Begait cows...

Author(s): Teweldemedhn Mekonnen and Selam Meseret  

January-March 2020

Journal of Pharmacognosy and Phytotherapy
Review on biological and immunomodulatory properties of Moringa oleifera in animal and human nutrition

Moringa oleifera, also called "miracle tree" or "tree for life" is a tree native from India. Highly resistant to drought, M. oleifera grows very well in tropical regions, including Benin. It is a plant with very high nutritional values. The different parts of the plant (leaves, fruiots, seeds, roots, bark and flowers) have multiple uses, both therapeutic and nutritional, with uses in human and...

Author(s): Adouko S. Jacques, Soha S. S. Arnaud, Ohouko O. H. Fréjus and Dougnon T. Jacques  

January-June 2020

International Journal of Fisheries and Aquaculture
Is aquaculture production by small-scale farmers profitable in Zambia?

The current and anticipated demographic changes worldwide are expected to increase fish and other animal protein consumption. Capture fisheries alone cannot meet these requirements. Aquaculture offers a way out if it can further be developed. However, in most developing countries, aquaculture is still in its infancy and the evidence on the industry is quite thin. We assess the profitability of small-scale aquaculture...

Author(s): Thelma Namonje-Kapembwa and Paul Samboko  

February, 2020

African Journal of Agricultural Research
Spatial distribution and sampling size for monitoring of African maize stem borer, Busseola fusca (Fuller) (Lepidoptera: Noctuidae) on maize (Zea mays L.) in Southern Ethiopia

The African maize stem borer (Busseola fusca) is one of the important biotic constraints for maize production in sub-Saharan African. This study determined the spatial distribution and sampling sizes for African maize stem borer in Southern Ethiopia. Twenty four maize farms were visited in 12 localities at three growth stage of maize. Data were collected on the number of infested and not-infested plants, and the number...

Author(s): Abrham Taddele, Ferdu Azerefegne and Yibrah Beyene

February, 2020

African Journal of Agricultural Research
Evaluation of the performance of coffee varieties under low moisture stressed areas of Southern Ethiopia

The experiment was conducted by using seven released coffee varieties at three locations in southern Ethiopia, Halaba, Loka Abaya and Dilla, to select coffee varieties with higher yield and tolerant to low soil moisture stress. It was arranged in RCBD having three replications. The result indicated that the varieties showed significant difference on main stem diameter, plant height at harvesting, plant height up to the...

Author(s): Tesfaye Tadesse Tefera, Bizuayehu Tesfaye and Girma Abera  

January-June 2020

Journal of Brewing and Distilling
Evaluation of maturation congeners in beer aged with Brazilian woods

Beer is the most consumed alcoholic beverage in Brazil. In this paper, wood aged beer was made with some Brazilian wood species, that is, chestnut, Cariniana sp., balsam, oak, and amburana. This maturation process can be done with wooden cubes, chips or in barrels. The main differences between the processes are related to the surface area of wood in contact with the beer as well as where it is stored. They provide...

Author(s): Bernardo Pontes Guimarães, Luis Eduardo Pereira Neves,  Munique Gonçalves Guimarães and Grace Ferreira Ghesti  

February 2020

African Journal of Business Management
How universities fill the talent gap: The data scientist in the Italian case

This research paper explores Italian study programs in data science in order to verify if knowledge and skills developed during the universities’ path are fit with data scientist job demand. The issue is introduced considering the companies’ growing need to derive insights from data, and consequently, to search for a staff with analytical expertise, the so-called data scientists quite rare. Literature review...

Author(s): Maddalena Della Volpe and Francesca Esposito  

February 2020

Educational Research and Reviews
Metaphoric perceptions of the administrators on ARTAS held within the scope of PISCTES project

Millions of Syrians live under temporary protection in Turkey. However, there are some problems in their integration into the education system. For the integration of Syrian students into Turkish education system, the Ministry of National Education in Turkey (MoET) initiated a Project called “Promoting Integration of Syrian Children into Turkish Education System” (PICSTES) and “Awareness Raising...

Author(s): Uğur Gürgan  

February 2020

African Journal of Biotechnology
Effectiveness of solid carriers on multiplication of bradyrhizobium mutant strain and nodulation of cowpea (Vigna unguiculata L)

Effective nodulation of legume is usually solid carriers dependent. Peat, the most effective solid carrier is not readily available in Nigeria, hence, alternative solid carriers were evaluated with Bradyrhizobium strains using cowpea as a test crop. Mutant strains (USDA 3384 and USDA 3451) were evaluated in the laboratory using solid carriers and pot experiments. The survival (multiplication), infectivity and nodulating...

Author(s): Nwokocha, A. G., Fagbola, O. and Daramola, D. S.  

February 2020

African Journal of Plant Science
Expression of Cocculus hirsutus trypsin inhibitor promotes endogenous defensive response against Helicoverpa armigera and enhanced levels of antioxidants

Proteinase inhibitors are a group of defense related proteins, natural antagonists of proteinases, induced upon herbivory, play a defensive role against polyphagous insects and phytopathogens. Serine proteinase inhibitor isolated from Cocculus hirsutus (L.) Diels, Cocculus hirsutus trypsin inhibtor (ChTI) was found effective as antifungal, bactericidal and nematicidal agent. Tomato plants expressing ChTI have been...

Author(s): Manushree V., Devaraj V. R. and Prasad D. T.  

February 2020

African Journal of Biotechnology
Chemical and physico-chemical characterization of seeds of melon cultivars: Valenciano and Pele de Sapo, cultivated in the Amazon

The aim of this work was to perform chemical and physical-chemical analyzes of the oil of the cultivars Valenciano Amarelo melon (VA) and Pele de Sapo melon (PS) (Cucumis melo L.) produced in Boa Vista, Roraima, Brazil, by GC -FID, IR, 1H NMR and the thermogravimetric behavior TG/DTG as well as yield of that obtained oil. Thus, the oil yield of Valenciano melon seeds was 28.47% and that of Pele de Sapo melon was 26.41%....

Author(s): Flavio Paulino da Silva, Ismael Montero Fernández, Selvin Antonio Saravia Maldonado, Simone Rorigues da Silva, Ricardo Santos Alemán, Vany Perpetua Ferraz, Jhunior Abrahan Marcia Fuentes and Bernardo de Morais Linhares  

February, 2020

African Journal of Agricultural Research
Modeling the sensitivity of strategic plans to risks and uncertainties in forest management

Forest operations are associated with products of a biological source and long-term plans. This makes forest management plans affected by market and environmental uncertainties, which can cause differences between the strategic and operational plans. Risks related to disease spread, adverse weather, timber demand, and available capital can cause a reduction in planted areas. It is necessary that forest management plans...

Author(s): Ricardo Rodrigues de Oliveira Neto, Simone Silva, Ana Carolina de Albuquerque Santos, Rodrigo Vieira Leite, José Marinaldo Gleriani, Helio Garcia Leite, Daniel Henrique Breda Binoti, Aline Edwiges Mazon de Alcântara and Leonardo Pereira Fardin  

February, 2020

African Journal of Agricultural Research
Successive off take of elements by maize grown in pure basalt powder

Basalt powder wastes from mining activities have potential to be used as a natural fertilizer. Basalt minerals in agricultural soils may release plant nutrients and increase soil negative charge. In this work, the weathering of basalt promoted by maize rhizosphere was investigated. We studied the chemical and mineralogical composition of basalt, including cation exchange capacity, as well as the rate of elements offtake...

Author(s): Luise Lottici Krahl, Simone Patrícia Aranha da Paz, Rômulo Simões Angélica, Leonardo Fonseca Valadares, José Carlos Sousa-Silva, Giuliano Marchi and Éder de Souza Martins  

January-March 2020

Journal of Plant Breeding and Crop Science
Effect of low temperature stress on field performance of highland sorghum (Sorghum bicolor (L.) Moench) at flowering stages

Sorghum is a C4 grass native in the semi-arid environments of the African sub-Saharan and consequently chilling stress can affect the performance of the crop, especially at the reproductive stages. Moreover, a significant delay of flowering and maturity was observed when sorghum grows under low temperatures regions, and consequently farmers in highland areas of Uganda face yield penalties. Forty genotypes were evaluated...

Author(s): Amandin Rutayisire, Alice Mukayiranga, Jean Claude Habineza, Millicent Avosa, Richard Edema and Geofrey Lubadde  

January-March 2020

Journal of Plant Breeding and Crop Science
Agro-morphological characterization of pigeonpea (Cajanus cajan L. Millspaugh) landraces grown in Benin: Implications for breeding and conservation

Pigeonpea (Cajanus cajan L. Millspaugh) is a neglected and under-utilized crop consumed in several regions of word. In order to assess performance of pigeonpea landraces grown in Benin for useful breeding programs, 50 accessions were collected from 39 villages. These accessions were characterized by using 12 qualitative and 11 quantitative traits. Based on the seeds morphological characteristics, the 50 accessions were...

Author(s): Géofroy Kinhoégbè, Gustave Djèdatin, Laura Estelle Yêyinou Loko, Relique Ignace Agbo, Rachit Kumar Saxena, Rajeev Kumar Varshney, Clément Agbangla and Alexandre Dansi  

January-June 2020

Journal of Petroleum and Gas Engineering
Application of rate transient analysis modeling in diagnosis of well abnormal flowing status in Middle East carbonate reservoir

Modern Rate Transient Analysis (RTA) is the hottest technology in recent years in reservoir engineering. Its main working principle is combining production data with bottom-hole pressure data based on the assuming reservoir model and well model. It will evaluate the reserves (Oil Drainage Radius and STOIIP), reservoir properties (permeability), wellbore condition (skin) and forecast production performance for single...

Author(s): Kaijun Tong, BingFu Luo, Kaiser A. Jasim, Dongping Zhang, Ashraf Ali Taha, Han Chen, Ali Ghazi and Abbas Radhi  

January-March, 2020

Scientific Research and Essays
Surfactants of microbial origin and its application in foods

Surfactants are petroleum-derived compounds widely used globally in industrial areas such as pharmaceuticals, cosmetics, textile, among others. The synthesis and use of these compounds has generated environmental pollution, putting public health at risk. For several years, the synthesis of surfactants has been reported by various microorganisms called biosurfactants. Biosurfactants have been shown to reduce surface...

Author(s): Alejandro De Jesús Cortés-Sánchez  

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