Articles

 

Articles

Page 3 of 1196, showing 50 records out of 59765 total, starting on record 101, ending on 150

August 2020

Educational Research and Reviews
Exploring challenges of preparing authentic English language tests in secondary and preparatory schools: The case of Gamo, Gofa and Konso zones in Southern Ethiopia

The main objective of this research was to study challenges of preparing authentic English language tests in Ethiopian six secondary schools. The focus was to assess current challenges in the preparation of authentic and communicative language tests. To this end, interviews and FGD with English language teachers were made and hence, 61 teachers were taken as the sample for the study from six secondary schools: Arba...

Author(s): Mohammed Shure Wado and Abdurehman Osman Seid

August 2020

African Journal of Pharmacy and Pharmacology
Pharmacognostic and toxicological evaluation of the leaves of Piper guineense Schum. and Thonn (Piperaceae)

The leaves of Piper guineense Schum. and Thonn (Piperaceae) are used in ethnomedicine for the management/treatment of various diseases. The objective of this study was to establish the pharmacognostic and toxicological profiles of P. guineense to help practitioners in making choices, and to assist scientists involved in the research of the Piper genus. The fresh leaves were examined for their macroscopic and microscopic...

Author(s): Tavs A. Abere ⃰, Mumuni Sumaila and Obi Ifeoma Stephanie  

August 2020

African Journal of Business Management
Environmental reporting, accountability and governance of local governments: An Italian multiple case study

This article aims to investigate the complex interrelationship existing between reporting, accountability and governance of municipalities. More in detail, the paper attempts to identify the internal and external conditions inducing municipalities to keep environmental reports (Research Question 1) and to assess the impact of environmental reporting on the accountability of the municipalities’ governance (Research...

Author(s): Aurelio Tommasetti, Luca Del Bene, Gennaro Maione and Giulia Leoni  

August 2020

Educational Research and Reviews
Development of the choir team perception scale

The purpose of this study is to develop a valid and reliable scale to measure the team perception levels of choir members. In the first step, a draft scale comprising 54-items was administered to 332 choir members. With the KMO (Kaiser-Meyer-Olkin) test for sampling adequacy, KMO value was found to be 0.936. Factor analysis on the scale items showed that the scale comprised 34 items and 5 factors, namely choir and...

Author(s): Duygu Piji Küçük  

August 2020

African Journal of Pharmacy and Pharmacology
Toxicological potential of ethanol extract of stem bark and Croton heliotropiifolius (Euphorbiaceae)

Croton heliotropiifolius is an endemic specie in northeast of Brazil. It is renowned for its medicinal properties, larvicidal, insecticidal and cytotoxic activity. This study evaluated the phytochemical screening of ethanolic extract stem bark of C. heliotropiifolius (EECroton) and the toxicological potential in Swiss albino mice. Phytochemical analysis were performed by thin-layer chromatography. The EECroton at 2000...

Author(s): Willams Alves da Silva, Kristiana Cerqueira Mousinho, Mary Anne Medeiros Bandeira, Marcos Aurélio Santos da Costa, Renatha Claudia Barros Sobreira, Tainá Maria Santos Silva, José Gildo da Silva, Sandrine Maria de Arruda Lima, Luciano Souza de Lima, Roberta M Leite Lima and Sônia Pereira Leite  

August 2020

African Journal of Pharmacy and Pharmacology
Prescribing pattern of medications prescribed to outpatients based on WHO prescribing indicators in Ethiopia: A systematic review and meta-analysis of observational studies

Poor prescribing pattern is observed and become a serious problem in the world including developing countries. In Ethiopia, several studies showed that health care institutions did not meet WHO prescribing indicators and the prescribing pattern is not satisfactory in the health care institutions. This study aimsto review the prescribing pattern of medications prescribed to outpatients based on WHO prescribing indicators...

Author(s): Wondim Ayenew, Getahun Asmamaw and Atsede Getaneh  

August 2020

African Journal of Biotechnology
A survey of the aflatoxin level and molecular identification of fungal contaminants in poultry feed mills from different geopolitical zones of Nigeria

Aflatoxin contamination of poultry feeds in Nigeria is a common problem in most feed mills. A survey on the distribution of aflatoxin in feed mills from different parts of Nigeria was carried out. The aflatoxin concentration in most feed mills from the North-western part of Nigeria was low compared to the concentration in the feed mills from the South-eastern part. The total aflatoxin level in three feed mills (B, C and...

Author(s): Anthony C. Mgbeahuruike, Emmanuela I. Nwoko and Onwumere O. S. Idolor  

August 2020

African Journal of Microbiology Research
Antibiotic resistance and genotypic detection of extended spectrum beta-lactamase producing pathogens in catheter associated urinary tract infection at a teaching facility in Kumasi, Ghana

This study determines the antibiotic resistance pattern of extended spectrum beta-lactamase (ESBL) producing pathogens responsible for catheter associated urinary tract infection (CAUTI) and the genes associated with the resistance. The study used 35 ESBL-producing pathogens isolated from urine and biofilm found in CAUTI from June 2018 to November 2018. Pathogens were confirmed phenotypically for ESBL production with...

Author(s): Alexander Bekoe, Roland Azorliade, Anthony Ablordey and Matthew Glover Addo

August 2020

African Journal of Microbiology Research
Water quality index (WQI) and bacteriological assessment of some selected hand-dug wells in the Adenta municipality, Ghana

Water quality was assessed from 11 hand dug wells in the Adentan Municipality using Water Quality Index (WQI) and bacteriological load as indicators. The sampling was conducted during the months of July to September, 2019. A total of 33 samples were taken from 11 hand dug wells at monthly intervals. Weighted Average Water Quality Index (WAWQI) was used to compute parameters which include temperature, pH, conductivity,...

Author(s): Phillip Adu-Gyamfi, John Asiedu Larbi and Matthew Glover Addo

August 2020

African Journal of Business Management
Social and environmental practices in the carboniferous industry: An analysis of the perceptions of agents impacted from the perspective of social capital

In the Brazilian contemporaneous context, there is evidence of society's demands for companies to carry out their activities in a responsible manner in the social and environmental spheres. In the coal mining industry, the debate is even more eminent because of the significant environmental impacts generated by the mining activity. The present study aims to analyze the determinants of socio-environmental practices...

Author(s): Eduardo Netto Zanette and Silvio Parodi Oliveira Camilo

August 2020

African Journal of Agricultural Research
Performance of faba bean (Vicia faba L.) varieties grown under broomrape (Orobanche spp.) infestation in South Tigray, Ethiopia

Broomrapes (Orobanche spp.) are the serious roots parasitic weed to legumes crop production in many countries. In Ethiopia, Orobanche crenata is a dominant parasite and a major constraint to faba bean (Vicia faba L.) cultivation, especially in the Northern parts of the country. Presently, it reduces crop production and has forced farmers to stop growing faba bean crop. Thus, it is necessary to find new sources of...

Author(s): Lemma Diriba, Firew Mekbib and Mussa Jarso  

August 2020

Scientific Research and Essays
Effects of biochar and manure on soil properties and growth of Casuarina equisetifolia seedlings at the coastal region of Kenya

This study investigated the effects of biochar and manure applied singly or together on soil biochemical properties, Casuarina equisetifolia seedling growth and seedling quality. Therefore, a nursery experiment consisting of Prosopis juliflora biochar and cattle manure treatments at 0% (control), 10% biochar, 20% biochar, 10% manure, 10% biochar + 10% manure, and 20% biochar + 10% manure was conducted. Generally,...

Author(s): Riziki Umazi Mwadalu, Benson Mochoge and Benjamin Danga  

August 2020

Journal of AIDS and HIV Research
Viral suppression and predictors among adolescents receiving care for HIV/AIDS in a tertiary health centre in Uyo, South-South, Nigeria

Viral suppression assesses the success of HIV/AIDS treatment and can avert or reduce transmission of infection. Several factors contribute to viral suppression and may vary in different settings and age groups, hence the need to study the associated factors in different populations. The aim of the research was to study the level of viral suppression and its predictors among adolescents living with HIV (ALHIV), who knew...

Author(s): Dixon-Umo Ofonime Tony and Ikpeme Enobong Emmanuel    

August 2020

Journal of Internet and Information Systems
Social media and catharsis in Africa: Examining the role of WhatsApp in venting stress in women

This paper investigates the role that social media, and particularly WhatsApp mobile applications plays in venting stress and other related aggressive behaviors among African couples. It seeks to examine the relationship that exists between WhatsApp usage and being happy, or rather catharsis. It leverages the existing datasets from the Afro-barometer (Africa Tracking Internet Progress-ATIP) website. Essentially the...

Author(s): Gregory Gondwe  and Evariste Some  

August 2020

International Journal of Library and Information Science
The role of community libraries in the alleviation of information poverty for sustainable development

This literature review focused on the role of rural community libraries in minimizing information poverty. The potentials of rural community libraries in promoting sustainable development are discussed in this article. The necessity of information poverty alleviation for sustainable development is also discussed. The study found that information poverty is an obstacle whereas information is a key to achieving...

Author(s): Md. Mia, S.  

August 2020

Journal of Engineering and Technology Research
Modeling and experimental validation of drying processus of the microalgue Spirulina with consideration deformation and flow mass

The profiles of the material transfer properties in porous products such as Spirulina platensis during drying which characterize their behavior are often determined from different experimental points by destruction of the samples. However, for a long drying time, it’s impossible to slice or cut the sample correctly because of its mechanical strength and friability. It influences the evaluation of product in...

Author(s): E. Salmwendé Tiendrebeogo,, G. Christian Tubreoumya, A. Oumar Dissa, A. Compaoré,  J. Koulidiati, F. Cherblanc, A. Bere and I. Youm  

August 2020

Journal of Media and Communication Studies
Effectiveness of communication on epidemic personal protection with community residents via new media during COVID-19 outbreak: Data from China

Personal protection measures are the key to COVID-19 epidemic control and prevention in the community. Newer forms of media present useful options for such information transmission. By presenting primary data from 420 residents in mainland China, this exploratory study aims to explore the communication mechanism which utilizes new media for disseminating epidemic-related information in the community during the COVID-19...

Author(s): Qingze Yu, and Weihui Mao  

August 2020

Educational Research and Reviews
Assessment of stakeholders’ views on accessing quality and equity of basic education in rural communities of Abia State, Nigeria

This study aims to analyze the views of stakeholders on access to quality and equity in Basic Education in selected rural communities of Abia State, Nigeria.  The study used mixed method design (quantitative and qualitative) in drawing views of a stratified sample of 432 stakeholders in the quantitative study and 72 participants of six focus group discussions. The study found out that access to quality and equity...

Author(s): Helen A. Ama, Fazlur R. Moorad and Sourav Mukhopadyay

August 2020

Educational Research and Reviews
Performance ranking in school mathematics in Kenya: A device that conceals and naturalizes inappropriate teaching strategies

Teaching strategies have a significant influence on students’ academic performance. This paper presents results from a qualitative study that examined the effects that performance ranking in Mathematics has on teaching strategies employed in Mathematics classrooms. In particular, the paper demonstrates how performance ranking disguises and legalizes inappropriate Mathematics teaching strategies. The participants...

Author(s): Samson Murithi Njiru, Simon Karuku and Milcah Nyaga

August 2020

Educational Research and Reviews
Effects of teacher mentoring on the classroom practices of lower grade primary school teachers in Kwale County, Kenya

Teacher classroom practices have been identified as the key contributing factor to the low learning outcomes of primary school grades in Kenya. Teacher mentoring has the potential to improve classroom practices and this study sought to determine its effects on the classroom practices of primary school teachers in Kwale County, Kenya. Using One Group Repeated Measures Quasi-Experimental Design, one cohort of 40 teachers...

Author(s): Daniel Ngaru Muraya and Esther Nyaguthii Wairimu  

August 2020

Educational Research and Reviews
Students’ transition from face to face learning to online learning at higher education: A case study in Trinidad and Tobago

This action research highlights the experiences of undergraduate students as they transit from face to face learning to online learning at a higher education institution in Trinidad and Tobago. A review of the existing literature within the local context indicated that there exists a dearth of information about the experiences of these students. It is imperative that policy makers pay more attention and consideration to...

Author(s): Gabriel Julien and Rhonda Dookwah

August 2020

Journal of Toxicology and Environmental Health Sciences
Prevalence and distribution of aflatoxin (AfB1) in groundnut and groundnut-based products in Northwestern Nigeria

The kernel of groundnut and groundnut-based products are easily contaminated by aflatoxin: a mycotoxin produced by the fungus Aspergillus flavus and A. parasiticus. A total of 526 samples of groundnut and groundnut-based products were collected from six states in Nigeria namely Kano, Jigawa, Katsina, Kebbi, Sokoto and Benue States and analyzed for Aflatoxin B1 (AfB1) contamination using the Enzyme-linked Immunosorbent...

Author(s): Michael Boboh Vabi, Christopher Oche Eche, Maikasuwa Isaac Ogara, Hakeem Ayinde Ajeigbe and Abba Aliyu Kasim  

August 2020

Journal of Parasitology and Vector Biology
Knowledge, attitudes and practices of communities towards neurocysticercosis in the districts of Amuru and Gulu, Northern Uganda

Neurocysticercosis (NCC) is the hematogenous inversion of brain by the larval stage of pork tapeworm, Taenia solium.  The aim of the study was to investigate the knowledge, attitudes and practices among communities in two districts of Northern Uganda. A community based cross sectional study was conducted between February to March 2019 in two Sub-Counties of Amuru and Gulu districts. Multi-stage sampling and lottery...

Author(s): S. P. Alarakol, B. S. Bagaya, Walter Onen Yagos and E. I. Odongo Aginya  

August 2020

African Journal of Microbiology Research
Metabolomics analysis of carotenoid production from Proteiniphilum acetatigenes PSB-W based on LC-MS

Metabolomics based on LC-MS was used for the analysis of the fermentation of Proteiniphilum acetatigenes PSB-W treated by different culture time and different light intensity. 26 putative metabolites were detected in samples treated by different culture time. Most of the components were produced in the metabolic activity in order to participate in the whole life process of bacteria. Compared with samples treated with...

Author(s): Qingping Hu, Xiaoli Gao and Yan Wang  

August 2020

African Journal of Agricultural Research
An update of sweet potato viral disease incidence and spread in Ethiopia

Sweet potato (Ipomoea batatas (L.) Lam.) is an important root crop for poor farmers in developing countries. Since the late 1980s, viral diseases have increasingly become a threat to sweet potato production in Ethiopia. This review paper presents the role of sweet potato production for ensuring food security, the level of sweet potato virus research, including the types of viral species identified and their current...

Author(s): D. H. Buko, A. Gedebo, C. Spetz and A. K. Hvoslef-Eide  

August 2020

African Journal of Agricultural Research
Impact of soil management and irrigation techniques on water use efficiency in cauliflower cultivation

The objective of this research is to evaluate the impact of soil management and localized irrigation techniques on water use efficiency in the cultivation of cauliflower. The treatments consisted of 4 different types of soil management: Direct seeding using crotalaria and brachiaria cover crops, a treatment used both in conjunction, and another that employed a conventional system. Two different irrigation techniques...

Author(s): Amilcar Isidro Servín Niz, Luciano Oliveira Geisenhoff, Guilherme Augusto Biscaro, Dhoni Meurer, Modesto Osmar Da Silva Oviedo, Eulalio Morel López, Oscar Luis Caballero Casuriaga and Hugo González Villalba  

August 2020

International Journal of Physical Sciences
Variations in equatorial electrojet current along the 210ºMM chain: A comparison of two approaches

Variations of equatorial electrojet (EEJ) in six Magnetic Data Acquisition System (MAGDAS) stations (four stations within the magnetic equator region and two stations outside the region) on the 210ºMagnetic Meridian (MM) chain were examined. Data of hourly values of horizontal component of magnetic field, H in the year 2007 for Cooktown (CKT), Amami-oh-Shima (AMA), Davao (DAV), Langkawi (LKW), Yap- Island (YAP) and...

Author(s): A. O. Idowu, I. A. Adimula and B. O. Adebesin  

August 2020

Journal of Parasitology and Vector Biology
Historic and current trends of human African trypanosomiasis in South Sudan

Human African Trypanosomiasis (HAT) due to Trypanosoma brucei gambiense remains a major public health problem in South Sudan. It causes substantial socio-economic impacts on the livelihoods of poor rural inhabitants. This article throws lights on a review of historic and current trends for evolution of HAT in South Sudan. Data of HAT cases were obtained from several relevant sources including World Health Organization...

Author(s): Yatta S. Lukou, and Erneo B. Ochi  

August 2020

International Journal of Livestock Production
Breeding of goats: An indigenous approach to enhancing opportunities for smallholder farmers in Inyathi, Zimbabwe

In Zimbabwe, at least 97% of the national goat herd is owned by smallholder indigenous farmers. The farmers rarely breed the goats for commercial purposes despite the fact that the country has potential to export goat products. Common breeds in Zimbabwe include the Matabele goats, Mashona goats, Boer goats and the Kalahari goats. With this diversity of the goats’ population, there is need to move from subsistence...

Author(s): Christopher Ndlovu, Rachel Mayimele, Obert Wutete and Abigirl Ndudzo  

August 2020

Journal of Geology and Mining Research
Coarse-grained rutile from regolith in Ebensuk west of Tinto, Cameroon

Coarse rutile with some grains exceeding 32 mm was recovered from regolith excavated from three pits (ABC) at Ebensuk. The rutile concentration ranges from 2.53 kg/m3 of regolith material in Pit C to 2.83 kg/m3 in Pit B with an average of 2.66 kg/m3. The rutile is black, longitudinally striated, with a metallic to adamantine luster and hard. Results of grain size (Z) analysis show that the rutile crystals range in size...

Author(s): Christopher M. Agyingi, Veronica E. Manga, Arnold F. Epanty, Anatole D-Lordon, N. Ngalla, Amstrong Taboko and Victor L. Wotanie  

August 2020

Scientific Research and Essays
Haemoglobin genetic types and its association with qualitative traits in West African Dwarf sheep

This study was carried out to investigate the haemoglobin genetic types and their association with qualitative traits in West African Dwarf (WAD) sheep. The Modified Stratified Sampling Technique (MSST) was used to select the sampling sites within the selected state and animal samples within the sampling sites. A total of 280 adult sheep comprising 140 rams and 140 ewes aged 4 years were used for the study. Data were...

Author(s): Fajemilehin Samuel Oladipo and Adegun Maria Kikelomo  

August 2020

Journal of Development and Agricultural Economics
Social and economic values chain assessment of key non-timber forest products around Mbam and Djerem National Park’s ecoregion of Cameroon: Case of Xylopia aethiopica, Beilschmiedia anacardioides and Beilschmiedia jacques-felixii

The periphery of Mbam and Djerem National Park in Cameroon harbors valuable forest resources including key non-timber forest products (NTFPs) that contribute to sustain livelihood of many people in terms of consumption and income generation. However, poor studies have been carried out to assess the socio-economic importance of the value chain of key NTFPs, threats on resources and implication for trade development. We...

Author(s): Souare Konsala, Fotso Roger-Corneille, Froumsia Moksia, Todou Gilbert, Ibrahima Adamou and Mapongmetsem Pierre-Marie

August 2020

Journal of Development and Agricultural Economics
Characterization and analysis of farming system of Cheliya and Ilu Gelan districts of West Shewa Zone, Ethiopia

The study characterizes and analyzes the existing farming system and identifies the production and marketing constraints of Cheliya and Ilu Gelan districts with cross-sectional data of 105 sample households.  The farming system of the study areas is characterized as mixed farming systems with 59.1 and 27.44% contribution of crop and livestock, respectively for livelihood activities. From the survey results, disease...

Author(s): Kifle Degefa, Getachew Biru and Galmesa Abebe  

August 2020

Journal of Dryland Agriculture
Mycorrhiza co-association with Aspilia pruliseta Schweif. and phosphorus uptake effects on growth of gadam sorghum in the semi-arid lower Eastern Kenya

Mycorrhiza fungi are important components of soil microbiota in the rhizosphere and greatly influence the uptake of mineral elements by plants. A greenhouse experiment was conducted at the University of Embu to evaluate effect of Aspilia pruliseta rhizosphere mycorrhiza on phosphorus uptake by gadam sorghum. Pots were filled with soil from a predetermined source in the semi-arid Gakurungu, Tunyai and Kanyuambora regions...

Author(s): Muchoka J. P., Mugendi, D. N., Njiruh P. N., Onyari C. N., Mbugua P. K. and Njeru  E. M.  

August 2020

African Journal of Biotechnology
Molecular epidemiology of schistosomiasis in Central River Region of The Gambia

Schistosomiasis is the second most prevalent tropical parasitic disease after malaria, and one of the leading cause of morbidity and mortality in developing countries especially in Africa. This study was carried out among students, farmers and fishermen/women from four villages in the Central River Region of The Gambia. The aim of this study was to show the prevalence value of schistosomiasis in Central River Region of...

Author(s): A. Mendy, A. Kargbo, Y. K. E. Ibrahim, M. E. Entonu and T. T. Gbem,  

August 2020

African Journal of Biotechnology
Wolbachia infected anthropophilic mosquitoes in The Gambia are not infected with filarial nematode

Wuchereria bancrofti has been reported to cause 90% of all cases of lymphatic filariasis in Africa. wolbachia endosymbiot infect a wide range of insects and nematodes. This study was conducted in 48 settlements (8 from each division). A total of 2003 mosquitoes was pooled into 120 clusters from the 48 settlements in The Gambia. Polymerase chain reaction (PCR) was used to detect the presence of Wolbachia and filarial...

Author(s): S. Sanneh, A. Kargbo, M. E. Entonu, Y. K. E. Ibrahim and S. Nasiru

August 2020

Journal of Pharmacognosy and Phytotherapy
In-ovo biological activity of Boswellia dalzielii stem bark extract and fractions against Newcastle disease virus

Newcastle disease remains a disease of global concern and serious economic challenge to the poultry industry because of its high mortality rate, in spite of the various intervention programs including vaccination. This research is aimed at studying the antiviral activity of the extract and fractions of Boswellia dalzielii against Newcastle disease virus (NDV) using chicken embryonated eggs. Phytochemical analysis was...

Author(s): Temitayo Lucia Ohemu Abubakar Ahmed, Taiwo Emmanuel Alemika, Solomon Chuwang Chollom, Thomas Philip Yakubu, Dalen Gwatau Dafam, Victoria Akpidi Okwori and Nanle Josephine Damos  

August 2020

African Journal of Food Science
Modeling the growth dynamics of Lactobacillus lactis CWBI B-1410: Effect of changes in glucose and nitrogenized matter in the Man Rogosa Sharpe (MRS) culture media

Food preservation is a big challenge for the industries. The mechanisms of preservation involved microorganisms such as lactic acid bacteria. Modeling the micro-organisms growth is a very useful information to well-understand their behavior and to propose the best conditions for food preservation. In this way, this study was to propose a mathematical model of the dynamical growth of Lactococcus lactis CWBI-B1410 which...

Author(s): Modou DIENG, Ndèye Adiara  NDIAYE, Mouhamed NDONG, Ndèye Coumba TOURE/KANE  

August 2020

African Journal of Food Science
Performance of a fabricated solar-powered vapour compression cooler in maintaining post-harvest quality of French beans in Kenya

The quality and shelf life of French beans can be affected within hours of harvesting if the produce is not cooled after harvest. Solar-powered cooling systems are suitable for use in rural areas that are not connected to the grid. This study aimed at developing a solar powered cooling system to improve the quality of French beans in smallholder farms in Kenya. Freshly harvested French beans were stored under...

Author(s): Ogumo, E. O., Kunyanga, C. N., Kimenju, J. and Okoth, M.  

August 2020

African Journal of Plant Science
Analysis of combined strategies for the management of Asian soybean rust

Asian soybean rust, if not well managed, can reduce grain yield up to 90%. Due to the severe damage caused by the disease, especially in Brazil, it is important to evaluate management strategies combined with fungicides, to minimize the losses. The aim of the work was to evaluate the effect of adopting different combined management strategies on the severity of soybean rust and its impact on the performance of the crop....

Author(s): Carlos André Bahry, Leocádio Ceresoli, Ângela Aparecida Carleso, Françoá Santos Dal Prá, Leandro André Petkowicz, Gelson Geraldo and Paulo Fernando Adami

August 2020

African Journal of Plant Science
Races of Colletotrichum lindemuthianum (Sacc. & Magnus) Briosi & Cavara in major bean growing regions in Tanzania

Breeding for resistant varieties has been shown to be the most suitable method to control bean anthracnose caused by Colletotrichum lindemuthianum though the method is challenged by the existence of many races of the pathogen. This work focused on characterizing races of C. lindemuthianum from potential bean agro ecological zones of Tanzania using a set of differential bean cultivars. From 144 anthracnose infected bean...

Author(s): Masunga Mpeguzi, Nchimbi-Msolla Susan, Robert Mabagala and Luseko Amos Chilagane  

August 2020

African Journal of Plant Science
The in vitro, ex vivo, and in vivo experimental findings of Nephrolepis exaltata

Nephrolepis exaltata (L.) Schott decreases the heartbeats of cockroaches and it was postulated that the plant could be an anticholinesterase agent and could have effects. It was performed: (a) In vitro: hydroalcoholic extract of N. exaltata was pharmacognostically characterized, the cholinesterase activity determined with 1.0 and 3.0 mg/ml, comparing to positive control and negative control, and the preliminary toxicity...

Author(s): Eduardo Matheus Ricciardi Suzuki, David Freitas Fernandes Corrêa, Isadora Caruso Fontana Oliveira, Fâni Ribeiro Silva, Regina Yuri Hashimoto Miura, Flávia Aparecida Resende Nogueira, Edson Hideaki Yoshida, Magali Glauzer Silva, Sandro Rostelato-Ferreira and Yoko Oshima-Franco  

August 2020

African Journal of Plant Science
Distribution and ecological drivers of family celastraceae in Côte D’ivoire

Most studies on drivers of plant diversity and distribution have focused on trees and combine several plant families. Climbers which are part of the particular characteristics of tropical rainforests due to their richness and abundance have been rarely related to ecological factors. This study evaluates the importance of vegetation type and total annual rainfall on the distribution of the Celastraceae plant family which...

Author(s): N’Guessan François Kouamé, Massa Rita Biagne, and Dibié Théodore Etien  

August 2020

Educational Research and Reviews
Influence of classroom environment on senior secondary school students’ academic achievement in mathematics in Calabar Nigeria

This study examined classroom environment and mathematics achievement of senior secondary school (SS2) students’ in the Calabar Cross River State, Nigeria. Ex-post facto quasi-experimental research design was used to test two hypotheses on the influence of two classroom variables, class size and instructional materials on students’ academic achievement in mathematics. A sample of 700 students was selected...

Author(s): Meremikwu Anne Ndidi and Ibok Ekpenyong Effiong  

August 2020

Educational Research and Reviews
Use of online collaborative learning strategy in enhancing postgraduates’ learning outcomes in science education

Most postgraduates in Nigeria Universities are family and working-class students. They rarely have time to stay and study in the classroom due to pressures at home and work-place. To enhance their outcomes in the program despite their tight schedule, the use of online collaborative learning strategy was employed. Pretest-posttest, control quasi-experimental research design was used on 38 postgraduates in Science...

Author(s): Peter Oladeji Ajayi and Lois Folasayo Ajayi

August 2020

Journal of Plant Breeding and Crop Science
Performance evaluation and selection of new maize hybrids under sole and inter crop production systems

Screening of maize genotypes under different cropping systems (sole and inter cropping) is very important to understand the genotypes response for different abiotic and a biotic stress. Nine maize genotypes including the standard check (BH-543) were planted and evaluated at research and farmers’ fields in the 2011 and 2012 cropping seasons. Farmers were invited to evaluate the genotypes based on their criteria of...

Author(s): Goshime Muluneh Mekasha, Solomon Admassu Seyoum and Alemayehu Zemede Lemma  

August 2020

Journal of Geography and Regional Planning
Perception of local community toward protected woodlands at Dugda Woreda, East Shewa Zone, Oromia, Ethiopia

Woodlands of Ethiopia are estimated to be around 70%. Unfortunately, this woodland is seriously under threats, mostly linked to human interference, livestock and climate change. To overcome these problems, protected woodlands were implemented in different parts of the country including Dugda Woreda Giraba KorkeAdii Kebele. However, the perception of local community towards protected woodlands was not studied. As a...

Author(s): Tsegu Ereso Denbel  

August 2020

Journal of Accounting and Taxation
Challenges of business income tax administration with special emphasis on collection process in Ethiopia: The case of Hadiya zone, Hossana town

The objective of this study is to assess the challenges of business income tax administration with special emphasis on collection process in the case of Hadiya zone, Hossana town. To answer the research questions, the researcher used both primary and secondary data as a source of information. Initially, by using proportionally stratified sampling technique, 341 tax payers were selected as a sample size from the total...

Author(s): Desta Temotewos Tumoro  

August 2020

Educational Research and Reviews
Development model of competencies for teachers of Early Childhood Development Center under the local administrative organization with application of empowerment evaluation

This research focuses on synthesizing concepts and needs for the development of teachers' competencies and studying the performance in accordance with the development model of competencies for teachers of the Early Childhood Development Center with application of empowerment evaluation. The research was divided into 3 stages. In the first stage, the needs for the developments of teachers’ competencies were...

Author(s): Rattiya Hansena, Sirisak Ardwichai, Paitoon Sinlarat, Nakhonchai Chan-urai, Terdsak Suphandee and Sunan Siphai  

August 2020

Educational Research and Reviews
Effect of art education program given to gypsy children on children's creativity

In the study, the effect of art education program given to gypsy children on children's creativity was examined. The study group of the study consisted of 51 gypsy children in the 5 to 6 years age group who show normal development and who attend private, official, independent kindergartens and kindergartens in primary schools under the Ministry of National Education in the Doğanlar district of Karatay county of...

Author(s): Canan YILDIZ ÇİÇEKLER and Neriman ARAL  

Page 3 of 1196, showing 50 records out of 59765 total, starting on record 101, ending on 150