Articles

 

Articles

Page 8 of 1151, showing 50 records out of 57545 total, starting on record 351, ending on 400

December 2018

Journal of Pharmacognosy and Phytotherapy
Phytochemical screening, antioxidant and cytotoxic activity of different morphotypes of Corchorus olitorius L. leaves in the central region of Benin Republic (West Africa)

Corchorus olitorius L. which belongs to Tiliaceae family is a cultivated herbaceous plant highly consumed as traditional leafy vegetables in Benin. Extracts from samples of different morphotypes leaves of this species were analysed for their phytochemical compositions, antioxidant and cytotoxicity activities. On each sample extract, qualitative phytochemical tests were used to detect the presence of bioactive molecules...

Author(s): Adjatin A., Hounkpatin A. , Assogba F., Djengue W., Agbotta P., Bénindicte H., Dansi A., Gbenou J. and Amouzou K. S.  

December 2018

Journal of General and Molecular Virology
Genetic diversity of rice yellow mottle virus from Niger Office and Selingue Development Rural Office in Mali

Virus is the most constraint of rice production in West Africa. Genetic diversity of rice yellow mottle virus (RYMV) was assessed in two rice growing areas of Mali. Forty-three (43) infected rice leaf samples were collected from five locations within the Niger Office and Selingue Development Rural Office rice’s growing areas. The infected samples were confirmed by Reverse Transcriptase Polymerase Chain Reaction...

Author(s): Samaké Salimatou, Traoré Diakaridia, Goita Oumarou, Sarra Soungalo, Dao Sognan, Doumbia Bakaye and Amadou Hamadoun Babana  

December 2018

International Journal of Sociology and Anthropology
Socio-economic conditions of street children: The case of Shashemene Town, Oromia National Regional State, Ethiopia

This research examines the socio-economic conditions of street children in Shashemene Town of Oromia National Regional State. The purpose was to assess the socio-economic conditions of street children in Shashemene Town. In order to realize this aim, both qualitative and quantitative types of data were collected from primary and secondary sources. The quantitative data were collected from 234 street children through...

Author(s): Issa Hassen and Madelyn R. Mañus  

December 2018

Biotechnology and Molecular Biology Reviews
Major mycotoxins occurrence, prevention and control approaches

Mycotoxins are secondary metabolites secreted by many fungal species and found in many feeds and foodstuffs of especially in plants during their pre-and post-harvest, transportation, processing and storage and are detected in cereal crops. They are capable of causing disease and death in both humans and livestock and thereby induce great economic crisis.  This review aims to examine the occurrence, prevention and...

Author(s): Temesgen Assefa and Teshome Geremew  

December 2018

Journal of Ecology and The Natural Environment
Influence of early nitrogen application on physiological properties and ultrastructures of functional leaves of potatoes under drought stress

The changes in physiological properties and leaf ultrastructures caused by early nitrogen application for potatoes under drought stress were explored. Potato variety Chuanyu117 was used to conduct a controlled experiment in a sand medium. Nutrient solution treatments (0.84, 1.26, 1.68 and 2.10) were administered, followed by severe drought, moderate drought, and normal (control) water treatments (45, 60, and 75% of soil...

Author(s): Shunlin Zheng, Tingting Zhao, Nianxin Wan, Jichao Yuan and Wei He  

December 2018

Journal of Accounting and Taxation
Bankruptcy prediction and homogeneity of firm samples: The case of Greece

This paper explores the prediction of bankruptcy of Greek retail and wholesale trade companies and, in particular, the relation between the forecasting ability of the Logit model and the degree of homogeneity of the samples of bankrupt and healthy companies. A sample of 119 bankrupt companies was matched with an equal sample of healthy companies for the period 2003-2014, based on year, sector, and sub-sector, which was...

Author(s): Arnis Nikolaos I., Chytis Evangelos T. and Kolias Georgios D.  

December 2018

International Journal of Physical Sciences
Assessment of outdoor radiation levels and radiological health hazards in Emene Industrial Layout of Enugu State, Nigeria

A study to assess the outdoor Background Ionizing Radiation (BIR) levels in Emene Industrial Layout of Enugu State, Nigeria has been conducted. An in-situ measurement of BIR exposure rate in mRh-1 for 30 locations was done using a well calibrated portable GQ GMC-320 PLUS nuclear radiation detector at an elevation of 1.0 m above ground level with a geographical positioning system (GPS) for geographical location. The...

Author(s): Ugbede F. O. and Benson I. D.  

December 2018

International Journal of Physical Sciences
Magnetosphere convection electric field (MCEF) time variation from 1964 to 2009: Investigation on the signatures of the geoeffectiveness coronal mass ejections

The signatures of the geoeffectiveness solar disturbed events on the Magnetosphere Convection Electric Field (MCEF) universal time variation from 1964 to 2009 are investigated. Here, attention is focused our on the periods concerned by the whole shock activity and by the different types of the geoeffectiveness Coronal Mass Ejections (CMEs) which are one-day-shock, two-days-shock and three-days-shock. The investigation...

Author(s): Kaboré Salfo and Ouattara Frédéric  

December 2018

African Journal of Business Management
Evaluating the extent to which cultural diversity is recognised in the workplace: The Cape metropolis managers’ views

South Africa has its own texture of cultural diversity unparalleled by any in the history of the world. The diversity emanates from the period of the Dutch settlers (1640s) occupying land in the country through their by conquest of the non-militant indigenous inhabitants. Soon the British arrived (1800s) and occupied more land. Before long, the two settler groups were fighting for ownership and control of the land. As...

Author(s): T. Beretu and L. E. Jowah  

December 2018

African Journal of Business Management
Managing value dimensions within an ecosystem framework: Reflections and empirical observations in the tourism sector

The increasing attention in the field of value management is highlighting multiple challenges for researchers and practitioners. Building on previous managerial contributions, the paper aims to define a possible path for combining the conceptual contributions related to value in exchange, value in use, and value in context in a common framework to improve understanding of emerging social and economic dynamics under the...

Author(s): Luca Carrubbo, Debora Sarno, Francesco Caputo and Francesco Smaldone  

December 2018

African Journal of Business Management
Institutionalism and development process of family firms in Kenya

This paper uses institutional theory to investigate the nexus between institutional context and development of the entrepreneurial process in family firms (from start-up, development, and growth to innovation and corporate entrepreneurship), focussing on the behaviour patterns of entrepreneurs. A qualitative case study methodology was used to examine 60 cases over a one-year period. Thirty of these cases were from two...

Author(s): Elijah Bitange Ndemo  

December 2018

African Journal of Microbiology Research
Antibacterial activity of endophytic fungus, Penicillium griseofulvum MPR1 isolated from medicinal plant, Mentha pulegium L.

In the present study, an endophytic fungus with a considerable antimicrobial activity was isolated from the medicinal plant Mentha Pulegium L. The morphological and molecular identification revealed that this fungus is a Penicillium griseofulvum. A preliminary screening was done to choose the suitable culture medium for a maximum production of the bioactive compounds using the dual-culture agar diffusion assay. The malt...

Author(s): Amina ZERROUG, Nouari SADRATI, Rasime DEMIREL, Sabrina BAKLI and Daoud HARZALLAH  

December 2018

African Journal of Microbiology Research
Health and nutritional quality assessment of salmonella-contaminated poultry products in sub-Saharan Africa; A case of cote d'ivoire

The poultry sector is developing rapidly in sub-Saharan Africa but it remains informal in many countries, including Côte d'Ivoire. This situation, which is favourable to the health and nutritional insecurity of food of avian origin, deserves special attention, because of Salmonella, which has poultry as its outbreak. The aim of this study was to help reduce the risk of food poisoning linked to the consumption...

Author(s): Koffi Ahua René, KOUADIO-N’GBESSO Nadège, Ouassa Timothée, Atobla Koua, KOUAME N’Zébo Désiré and DadiE Adjéhi

December 2018

African Journal of Agricultural Research
Evaluation of bread wheat (Triticum aestivum L.) genotypes for resistance against stem rust (Puccinia graminis f. sp. tritici) diseases at seedling and adult stages

Bread wheat is the most important food crops among cereals cultivated in the world and consume in various diets. However, the production of bread wheat majorly affected by fungal diseases especially rust diseases. Of the rust diseases, stem rust is the most destructive due to the frequent emerging of new races of the pathogen. The field experiment was conducted at Kulumsa Agricultural Research Debre Zeyit sub-center...

Author(s): Desalegn Negasa Soresa  

December 2018

African Journal of Agricultural Research
Variability of morpho-metric traits and oleaginous biofuel potential of Jatropha curcas L. (Euphorbiaceae) seeds in Burkina Faso

In the recent decades, Jatropha curcas has received attention as a potential source of bio fuel production in many West African countries. To detect performant accessions for improvement and breeding programmes, the degree of variability of morphological traits and oil content of seeds in a large range of accessions were assessed in this study. The morphological traits and oil content of seed of 40 accessions of J....

Author(s): Hemayoro Sama, Bassiaka Ouattara, Adama Hilou, Abdoul-Nassiré Derra, Bathélémy Yélémou and Victor Hien  

December 2018

African Journal of Agricultural Research
Grass production Tifton 85 and nutrient extraction with swine wastewater doses

Swine wastewater (SW) is considered as a source of nutrients for agriculture. The quantities and frequencies applied may vary according to the soil class, the nature and composition of the waste, the climatic conditions and the cultivated plant species. Therefore, this study aimed to evaluate the effects of application of five Swine wastewater doses (0, 500, 1000, 2000 and 2500 m³ ha-1) in the production of...

Author(s): Vinícius de Oliveira Rezende, Luís César Dias Drumond, André Mundstock Xavier de Carvalho, Regina Maria Quintão Lana and Marcos Vieira de Faria  

December 2018

African Journal of Agricultural Research
Evaluation of improved chickpea varieties for resistance to Fusarium wilt (Fusarium oxysporum) under field condition in sick plot

Chickpea Fusarium wilt caused by Fusarium oxysporum f. sp ciceris is a devastating disease of chickpea in Ethiopia. This study was done to evaluate the resistance of the improved chickpea varieties to fusarium wilt disease. About nine kabuli and ten desi types including one JG-62 differential were evaluated in RCBD Design with three replications in Debre Zeit sick plot in 2017. Results of the study showed that there are...

Author(s): Asrat Zewdie and Tolesa Bedasa  

December 2018

African Journal of Agricultural Research
Host preference and performance of cabbage aphid Brevicoryne brassicae L. (Homoptera: Aphididae) on four different brassica species

Host preference and performance of cabbage aphid Brevicoryne brassicae were studied on seven brassica varieties under Greenhouse. Nymphs, apterous and alate aphids were significantly different on day three and day 15 among tested varieties. Higher total number of aphids per plant was recorded on Brassica carinata and lower on Brassica oleracea. Alates of B. brassicae preferred more to feed and reproduce on B. carinata...

Author(s): Amlsha Mezgebe, Ferdu Azerefegne and Yibrah Beyene  

December 2018

African Journal of Biotechnology
Degradation kinetics of 2,4-dichlorophenoxyacetic and atrazine by Trametes versicolor (L.:Fr.) Pilát

The degradation kinetics of different sources of 2,4-dichlorophenoxyacetic (2,4-D) and atrazine by the natural strain Mo008 of the basidiomycete fungus Trametes versicolor (L.:Fr.) Pilát was studied, knowing that in this process the strain used produces an enzyme complex composed of manganese peroxidase (MnP), lignin peroxidase (LiP) and laccase, and the response on the global consumption rate and yield is...

Author(s): Ernesto Hernández Mendieta, Dagoberto Guillén Sánchez, Iran Alia Tejacal, Victor López Martínez, María Andrade Rodríguez, Edgar Martínez Fernández, Manuel Huerta Lara, and Catalina Rubio Granados  

December 2018

African Journal of Biotechnology
Isolation and characterization of Ralstonia solanacearum strains causing bacterial wilt of potato in Nakuru County of Kenya

In Africa, cultivation of potato (Solanum tuberosum) represents an important food source and income generation. However, its productivity is constrained by biotic and abiotic stresses. Bacterial wilt caused by Ralstonia solanacearum is an important constraint to the world potato industry. In Kenya, the disease affects 77% of potato farms causing yield losses of up to 100%. Control methods are limited mainly due to the...

Author(s): Rostand Romeo Chamedjeu, Joel Masanga, Viviene Matiru, and Steven Runo  

December 2018

African Journal of Biotechnology
Dynamics of the concentration of the hormones triiodothyronine and thyroxine at the beginning of the reproductive season and the effect of application of iodine in Nelore heifers bred in pasture

The aim of this study was to evaluate the dynamics of triiodothyronine (T3) and thyroxine (T4) hormones, their relation with body condition score (BCS) and reproductive stage of 248 Nelore heifers, and the effect of iodine application on the induction of cyclicity of 217 anoestrus heifers in pasture at the beginning of the reproductive season. At day zero (D0), an assessment of the BCS was performed. An examination of...

Author(s): Adriana Almeida Fonseca Ruy, Karen Martins Leão, Mariana da Mata Silveira, Viler Carrijo Oliveira, Francisco Ribeiro de Araújo Neto and Marco Antônio Pereira da Silva

December 2018

African Journal of Biotechnology
Comparison of antimicrobial properties of two spices commonly consumed in Nigeria and effect of temperature on their antioxidant properties

The study compared the antimicrobial activities of essential oils (EOs) from Piper guineense (Uziza) and Xylopica aethiopica (Uda) using diffusion and dilution assays, and evaluated their antioxidant properties at different temperatures. Comparison of the antimicrobial activities was determined using well-in-agar diffusion, disc diffusion and broth dilution methods against Escherichia coli, Salmonella sp and Bacillus...

Author(s): Ogueke, Chika C., Azeke, Ehijie Augusta, Owuamanam, Clifford I., Ojukwu, Moses, Agunwah, I. M., Barber, L. I. and Bede, E. N.  

December 2018

Journal of Medicinal Plants Research
Medicinal plant use and conservation practices by communities in the Togo Plateau Forest Reserve, Ghana

The use of plants for medicine has constituted an important aspect of primary healthcare delivery system of people throughout the world for many centuries. Nonetheless, information on medicinal plants and their conservation are still lacking in some areas, including the Togo Plateau Forest Reserve in Ghana. This paper investigates the ethnobotany of the Togo Plateau Forest Reserve, Ghana, to document the traditional...

Author(s): Gilchrist K. Faith Dogor, Ruby A. Nyarko, Alexander K. Anning and Alfred  Oteng-Yeboah

December 2018

Journal of Medicinal Plants Research
Evaluation of cytotoxic and antitumor activity of perillaldehyde 1,2-epoxide

The study aimed to evaluate cytotoxicity and antitumor activity of perillaldehyde 1,2-epoxide (PE), a p-menthane monoterpene derivative against four human tumor cell lines ovarian cancer (OVCAR-8), colon carcinoma (HCT-116), glioblastoma (SF-295) and leukemia (HL-60) using the colorimetric MTT assay. PE showed a high degree of inhibition of cell proliferation (GI = 95.66 to 99.71%) and IC50 16.14 μM (± 1.86),...

Author(s): Luciana Nalone Andrade, Patrícia Severino, Ricardo Guimarães Amaral, Grace Anne Azevedo Dória, Andressa da Silva, Melina Alves, Ricardo Luiz Cavalcante Albuquerque Júnior, Maria Claudia Santos Luciano, Cláudia Ó Pessoa, Adriana Andrade Carvalho and  Damião Pergentino de Sousa  

December 2018

Journal of Medicinal Plants Research
Diversity and use of wild edible plants by migratory shepherds in the Himachal Pradesh of the Western Himalayas, India

The present study was carried out in Himachal Pradesh of the Western Himalayas, India to obtain information on the wild edible plants used by the migratory shepherds. The shepherds started their migration in July from Chitkul, Rakchham, Batseri, Sangla and Kamru of district Kinnaur (Himachal Pradesh). Questionnaire for the survey, personal field visits and participatory observations were used to collect information...

Author(s): Radha, Sunil Puri and Sanjeev Kumar  

December 2018

Educational Research and Reviews
With parental eye, factors that prevent to attend nature activites

This study was conducted in order to determine the difficulties and challenges parents and children who have attended /desire to attend nature activities experience in order to access these activities. The study included 50 parents and their children. Interview technique was used in the study. The percentage of the questions asked was calculated to determine the demographic characteristics of the participants. Some of...

Author(s): Merve Ceylan

December 2018

Educational Research and Reviews
A study of factors and causal relationships on the results of national test: Mixed method research

The general objective of this research was to study factors and causal relationships on the results of national test. Also, the research was conducted under three specific objectives: 1) to study causal relationships on the results of national test, 2) to create and investigate causal relationships on the results of national test, and 3) to develop excellence model in promoting the results of national test. Quantitative...

Author(s): Khumoon Petnat, Terdsak Suphandee, Somprasong Senarat and Sunan Siphai

December 2018

Educational Research and Reviews
The development of inspirational test in learning science for junior high school students in schools under the Regional Education Office No. 14

This study aimed at auditing the quality of inspirational test in learning situational science for junior high school students using Exploratory Factor Analysis and Second Order Confirmatory Factor Analysis. Mixed methodology was used in this study. The sample was divided into 2 groups: (1) qualitative sample of 9 experts who were lecturers in the Department of Educational Psychology, educators or scientific experts who...

Author(s): Benjawan Sawatdiruk, Sunan Siphai, Waraporn Arawan and Narumon Saengprom

December 2018

African Journal of Pharmacy and Pharmacology
Evaluation of surgical antimicrobial prophylaxis use in Ethiopia: Prospective study

Appropriate use of surgical antimicrobial prophylaxis can prevent approximately 40 to 60% of surgical site infections. Inappropriate  use  is  associated  with  emergency  of antimicrobial resistance,  occurrence  of  side  effects  and  increased  health  care  cost.  We aimed to evaluate surgical antimicrobial prophylaxis use of Hawassa...

Author(s): Tamrat Legesse, Desta Hiko, Eneb Khelifa Ismael and Sadikalmahdi Hussen Abdella  

December 2018

African Journal of Microbiology Research
Antimicrobial resistance pattern of MRSA strains isolated from patients of a hospital in Madinah, Kingdom of Saudi Arabia

Methicillin-resistant Staphylococcus aureus (MRSA) strains are on the rise leading to severe morbidity and mortality in ICU patients worldwide including Saudi Arabia. In the present study, the prevalence, gender distribution and antimicrobial resistance pattern of this gram-positive nosocomial bacterial pathogen were explored. The strains were isolated from 6840 sampled patients at King Fahd...

Author(s): Samah Ghanem, Saleh A. Bahashwan, Hatem M. El Shafey, Ahmed A. Fayed, Areej Alhhazmi and Nikhat Manzoor,

December 2018

African Journal of Microbiology Research
An evaluation of the effect of graphene oxide on Saccharomyces cerevisiae

Graphene oxide (GO) has a wide range of applications. It has been identified to have significant potential for important biomedical and biochemical uses. Graphene and its derivatives are known to elicit toxic effects. Saccharomyces cerevisiae is a versatile yeast of importance with several uses, one of which is its application as a human probiotic. The interaction of GO with living systems is of interest and relevance....

Author(s): Nafisat Omotayo, Onyanobi Abel-Anyebe,, Oluwasogo Olalubi,  Obaid Ullah, Shahlla Mir, Opeyemi Ojekunle, Adedamola Olatoregun, Judith Anglin and Ayodotun Sodipe,  

December 2018

African Journal of Agricultural Research
Gender differences in the use of plant health information services: A case of plant clinics under Plantwise Program in Kenya

A total of 8,699 female and 12,928 male farmers visited plant clinics in Kenya between 2012 and 2016. The lower clinic attendance by women farmers indicates they may lack information on plant health problems. This study aimed to understand the environment plant clinics operate in, identify the reasons for low clinic attendance by women, and possible strategies to reach more female farmers. Stratified random sampling was...

Author(s): Musebe, R. O., Mugambi, I., Williams, F., Mulaa, M., Nambiro, E. and Chege, F.  

December 2018

African Journal of Agricultural Research
Proximate, physical and chemical composition of leaves and seeds of Moringa (Moringa oleifera) from Central Malawi: A potential for increasing animal food supply in the 21st century

The nutritive composition of Moringa (Moringa oleifera Lam) leaves and seeds were evaluated for their possible inclusion in livestock feed formulation because of the limited availability of conventional protein concentrates like soybean (Glycine max) seeds. Moringa seeds contained 50.70 g kernels and 19.03 g hulls per 100 seeds representing 72.71 and 27.29% as a fraction of the whole seed, respectively. The 100 seeds...

Author(s): Lesten Eliez Chisomo Chatepa and Emmanuel Chidiwa Mbewe  

December 2018

African Journal of Agricultural Research
Phytochemicals (phenolic acids, flavonoids, and alkaloids) contribution to the feeding value of mulberry (Morus spp.) for rabbits

The feeding value of mulberry leaves for rabbits was quantitatively evaluated based on a single-factor design with five levels in diets (0, 5, 10, 15 and 20%). Results showed that rabbits given mulberry at 20 and 15% had a relatively lower body weight gain, higher feed conversion ratio, and lower meat ether extract contents than that in the 0% group (P < 0.05). Increased activities of antioxidant enzymes and reduced...

Author(s): Q. R. Hou, W. G. Zhao, T. Chen, and L. Li,  

December 2018

African Journal of Agricultural Research
The efficacy of jatropha (Jatropha curcas L.) seed cake as an organic fertilizer

Studies to evaluate the efficacy of Jatropha curcas L. (Jatropha) seed cake as an organic fertilizer were carried out at Bunda College of Agriculture during the 2010/2011 growing season using an on-station experiment. The major objective was to evaluate the efficacy of Jatropha seed cake as an organic fertiliser. The field experiment was laid in a 3 × 3 design with 3 levels of Jatropha (0, 92 and 184 kg N/ha...

Author(s): Emmanuel C. Mbewe, Patson C. Nalivata, Wlikson Makumba and Venon H. Kabambe  

December 2018

African Journal of Agricultural Research
Physiologically meaningful moisture content determination for Brazil nut (Bertholletia excelsa Bonpl.) seeds

Brazil nut (Bertholletia excelsa Bonpl.; Lecythidaceae) seeds are large, and the oily embryo (edible part) is covered by a thick, woody seed coat. Difficulties in seed storage may be due to desiccation sensitivity of the seeds, and prior variable results may be related to procedures for seed moisture content (MC) determination. This study first compared 3 methods of preparation of whole seeds, prior to MC determination:...

Author(s): Diana Soares Bentes, Geângelo Petene Calvi and Isolde Dorothea Kossmann Ferraz,  

December 2018

African Journal of Biotechnology
Effects of heat sources on the levels of polycyclic aromatic hydrocarbon in selected fish samples from Ogidingbe (Escravos Estuaries)

The riverine areas of the Niger-Delta region of Nigeria are popularly known for their smoked fish from both fresh and salt water. To the people living in these areas, smoking is a method of preservation as the fish is known to undergo spoilage within 8 h of harvest from its natural habitat; though not without the potential health hazard associated with smoked foods. During smoking, polycyclic aromatic hydrocarbons...

Author(s): Erhabor Destiny, Edjere Oghenekohwiroro and Ejeomo Christopher

December 2018

African Journal of Biotechnology
Clausenidin upregulated p53 and caused apoptosis in HT-29 tumor cell lines

Clausenidin is a pyranocoumarin majorly found in medicinal herbs of the Rutaceae family used to treat cancer patients locally in Asia. The compound is presumed to have anti-cancer cell effect but its exact mechanism of action is still unknown. The study aimed to evaluate the effect of pure clausenidin on p53-mediated apoptosis as well as other cell death pathways in colon cancer (HT-29) cell lines. The...

Author(s): Peter M. Waziri, Rasedee Abdullah, Rosita Rosli, Abdul Rahman Omar, Ahmad Bustamam Abdul, Nur Kartinee Kassim, Ibrahim Malami, Imaobong C. Etti, Palanisamy Arulselvan and Ashwaq Shakir Al-Abboodi  

December 2018

African Journal of Biotechnology
Quali-quantitative characterization of the honey from Myracrodruon urundeuva allemão (Anacardiceae - Aroeira): macroscopic, microscopic, physico-chemical and microbiological parameters

The objective of the present study was to evaluate the external and organoleptic characters, microscopic, physico-chemical, chromatic and microbiological parameters of the honey from Myracrodruon urundeuva allemão (Anacardiceae - Aroeira) of the Jequitinhonha River Valley / Brazil, in order to create its geographical indication. In the first stage a data survey was carried out to characterize the production of...

Author(s): Eliane Macedo Sobrinho Santos, Hércules Otacílio Santos, Juliana Rezende Sá Miranda Gonçalves, Anna Christina Almeida, Igor Viana Brandi, Alexsander Rodrigues Cangussu, Janainne Nunes Alves, Ricardo Jardim Neiva, Grazielle Layanne Mendes Santos, Maria Izabel de Jesus Viana, Bruna Ruas Santos Araújo, Thalita Cordeiro Santos and Kattyanne Souza Costa

December 2018

African Journal of Biotechnology
Determination of trace elements and heavy metals content of green and black tea varieties consumed in Iran

The aim of the present study was to determine the level of selected heavy metals in green and black tea varieties consumed in Iran. Samples were prepared with the acid digestion method and measured by polarography. The mean concentration of Zn, Cd, Pb and Cu was 0.505±1.632, 0.417±0.268, 0.325±0.249 and 4.151±3.739 mg/100 g for black tea, and 2.442±4.003, 0.284±0.198,...

Author(s): Behrooz Jannat, Naficeh Sadeghi,, Mohammad Reza Oveisi, Masoomeh Behzad, Manan Hjimahmoodi and Morteza Ebrahimi  

December 2018

International Journal of Physical Sciences
Noise exposure levels and health implications on daily road side petty traders at some major roundabouts in Ibadan, Nigeria

The level of noise exposure to daily road side traders at five major roundabouts in Ibadan metropolis was assessed. Noise measurements were made using a precision multi-function sound level meter. Measurements were made at three different periods of the day; morning (7:30 to 11:30 a.m.), afternoon (12:00 to 3:00 p.m.) and evening (4:00 to 5.00 p.m.) for a consecutive period of ten days. The highest mean maximum noise...

Author(s): Ogunseye T. T., Jibiri N. N. and Akanni V. K.  

December 2018

African Journal of Microbiology Research
Isolation and characterization of phenol degrading Bacillus species from a Southeast Brazilian mangrove sediment

Phenolic compounds are common pollutants in industrial effluents and pose a significant risk to the environment. The microbial capacity to degrade these molecules makes the prospection of bacteria with this ability very strategic for bioremediation processes in contaminated areas. This study was carried out to isolate bacteria with phenol degrading capacity from Brazilian mangrove soil. Microorganisms were evaluated for...

Author(s): Anna Paula Santos Almeida Rotta, Bruno Francesco Rodrigues de Oliveira, Renan de Souza Soares, Igor Daniel Alves Ribeiro, Ariana Alves Rodrigues, Danns Pereira Barbosa, Matheus Maitan Vieira and José Daniel Gonçalves Vieira  

December 2018

African Journal of Business Management
Factors influencing project selection in the renewable energy sector of Zambia

The purpose of this paper is to investigate the factors that influence decision making in the selection of projects in renewable energy sector of Zambia. Project selection and development of a portfolio of projects in line with corporate strategy is an important task of decision makers in the renewable energy sector of both public and private organizations. The selected projects have to meet the appropriate time frame...

Author(s): Percy Jennings Saili and Balimu Mwiya  

December 2018

African Journal of Business Management
Factorizing towards the prime determinants of job satisfaction: An integrative modeling across PCA and logistic regression

In recent years, job satisfaction has been seriously taken as one of the top priority concerns in developing countries, since the living standards of the people have been improving. The overarching aim of this study is to identify the top most determinants of job satisfaction among employees of Abay bank using a sample of 150 employees working in Addis Ababa. A combination of principal component analysis (PCA) and OLR...

Author(s): Timkete Aleme  

December 2018

African Journal of Business Management
Corporate social responsibility: An approach to peace?

The responsibility to promote sustainable development should be a joint effort among government, industry and other organizations. They can share the responsibilities and commitments that countries have with regard to the ratification of the global plans of action, such as Agenda 21, Kyoto Protocol and Agenda 2030. Delai and Takahashi (2012) explain that the Corporate Social Responsibility (CSR) is the approach to...

Author(s): Alvany Maria dos Santos Santiago, Pamela K. Robinson and José Celio Silveira Andrade  

December 2018

African Journal of Microbiology Research
Antimicrobial susceptibility patterns of uropathogenic microorganisms associated with vesico-vaginal fistula (VVF) patients in Abakaliki, South eastern Nigeria

The objective of this study was to review the antimicrobial susceptibility patterns of uropathogenic microorganisms associated with VVF patients in Abakaliki, South eastern Nigeria. Out of the 117 bacterial isolates obtained from 108 mid-stream urine samples of VVF patients, 72 isolates [15 (20.8%) Staphylococcus aureus, 8 (11.1%) Enterococcus faecalis, 12 (16.7%) Klebsiella pneumoniae, 11 (15.3%) Proteus mirabilis, and...

Author(s): Ugbo, E. N, Moses, I. B, Orji, J. O. Ukpai, E. G, Eluu, S. C, Egbule, C. U, Uzoeto, H. O and Okata-Nwali, D. O  

December 2018

African Journal of Agricultural Research
A research on the determination of productivity levels of tomato grown areas

The research was conducted in tomato-growing lands of Lâpseki, Ezine, Bayramiç and Central districts of Çanakkale province, Turkey. The aim of the study is to check the suitability of the field for tomato farming and to produce a solution if there is a problem. Disturbed soil samples were taken from 114 points with certain coordinates, at a depth of 0 to 30 cm, and analyses were performed. In the...

Author(s): Tuncay Demirer  

December 2018

African Journal of Agricultural Research
Factors influencing commercialization of sweet potato in Mosocho Subcounty, Kenya

Sweet potato is a traditional crop grown in most parts of Kenya. In Nyanza Region, Kisii County and Mosocho sub-county in particular are major producers of the crop. However, only less than half of the produce is marketed and the growers are largely poverty stricken. This paper investigates why so little of the produce is marketed. Using primary data collected from a survey of 108 farmers in Mosocho, the study estimates...

Author(s): Winnie Kemunto Mageto and Kamau Gathiaka  

December 2018

African Journal of Agricultural Research
Quality of clonal plantlets of Coffea canephora Pierre ex A. Froehner produced using coffee husk in the substrate

Coffee husk is a residue produced during the fruit processing and it is an excellent source of organic matter. It is an interesting alternative that can be used in the formation of the substrate to plantlet production, but the proportion to be recommended is still unknown. In this context, this experiment was conducted with the objective to study the growth, quality and gas exchange rates of clonal plantlets of Conilon...

Author(s): Abraão Carlos Verdin Filho, Wagner Nunes Rodrigues, Tafarel Victor Colodetti, Aldo Luís Mauri, Bruno Fardim Christo, Romário Gava Ferrão, Marcelo Antonio Tomaz, Marcone Comério, Saul de Andrade Júnior, Sheila Cristina Prucoli Posse, Lima Deleon Martins and Sebastião Vinícius Batista Brinate  

December 2018

African Journal of Agricultural Research
Farmer-based dynamics in tissue culture banana technology adoption: a socio-economic perspective among small holder farmers in Uganda

The rates at which tissue-culture banana technology at smallholder farmer level in Uganda are adopted have reduced since the late 1990s. The study assessed the socio-economic factors influencing adoption of this technology by smallholder farmers. A survey on 280 smallholder farmers sampled from Western Uganda was conducted and responses were subjected to principal component analyses. There are evidences of very low...

Author(s): Murongo M. Flarian, , Ayuke O. Frederick,  Mwine. T. Julius, and Wangai K. John  

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