Accelerating Discovery

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February 2018

Value congruence of manufacturer: Distributor guanxi orientation and manufacturer’s relationship specific investments

Values are very important for guiding firm’s attitude, minds and behaviors. From intra- to inter-firm management, value congruence between cooperative firms is the cornerstone for relationship building. This paper focused on guanxi orientation values, popular in Chinese business context, and found the positive effect of value congruence in guanxi orientation on manufacturers’ relationship specific...

Author(s): PAN Xuan and ZANG Shuwei  

February 2018

Interpretation of aeromagnetic data over some parts of Mambilla Plateau, Taraba State

The data covering Mayo Daga and Gashaka areas of Taraba State has been interpreted by applying source parameter imaging (SPI) and forward and inverse modeling methods. From the quantitative method of interpretation, it was found out that the magnetic intensity within the study area ranges from -129.9 to 186.6 nT in which the area is noticeably marked by both low and high magnetic signatures which may be as a result of...

Author(s): YAKUBU John Akor, ILEAGU Immaculate Ukamaka and IGWE Emmanuel Awucha  

February 2018

Improvement of the homotopy perturbation method to nonlinear problems

This paper proposes an effective improvement of the homotopy perturbation method (HPM) by using Jacobi and He's polynomials to solve some nonlinear ordinary differential equations. With this method, the source terms of ordinary differential equations can be expanded in series of shifted Jacobi polynomials. Numerical results are given in this paper to illustrate the reliability of this method with nonlinear ordinary...

Author(s): J. F. Alzaidi and A. A. Alderremy  

February 2018

Comparative study of general with Spinal Anesthesia on maternal outcomes for caesarean delivery among preeclamptic women at Tikur Anbessa Specialized Hospital, Addis Ababa, Ethiopia

Anesthetic management of preeclamptic patients remains a challenge. Although general anesthesia can be used safely in pre-eclamptic women, it is fraught with greater maternal morbidity and mortality. The added risks associated with general anesthesia include airway difficulties due to edema (often aggravated by tracheal intubation) and the pressure response to laryngoscope and intubation. However, several studies...

Author(s): Tsehay Terefe, Yohannes Tekalegn and Abraham Irena

February 2018

Investigation of gravity anomalies in parts of Niger Delta Region in Nigeria using aerogravity data

Gravity anomalies in parts of the Niger Delta region, Nigeria, were investigated through the interpretation of aerogarvity data with the objectives to determine the thickness of the sedimentary basin, establish the basement topography, density contrasts and the geological models which will give information about variation of geological structures. Four sheets of digital airborne gravity data were used for the...

Author(s): Ekpa M. M. M., Okeke F. N., Ibuot J. C., Obiora D. N. and Abangwu U. J.  

February 2018

Antibacterial and anti-adherent effect of Mimosa tenuiflora and Myrciaria cauliflora on dental biofilm bacteria

The use of plants in the prevention and treatment of oral infectious and as an antibiofilm agent continues to be valued in many parts of the world. The aim of study is to evaluate in vitro antimicrobial action of the plant extracts of barks Mimosa tenuiflora (Willd.), Poir. (jurema preta) and leaf and stem of Myrciaria cauliflora Berg. (jabuticabeira) against dental biofilm bactéria. The oral bacteria were used...

Author(s): Maria Regina Macêdo-Costa, Carlus Alberto Oliveira dos Santos, Eduardo Roberto de Lucena, Maria do Socorro Vieira Pereira and Kenio Costa de Lima

February 2018

Isolation and phenotypic characterization of actinomycetes from Rabat neighborhood soil and their potential to produce bioactive compounds

This study aimed to examine the isolation of actinomycetes strains from unexplored Rabat neighbourhood soil followed by phenotypic diversity highlight to access their potential as novel bioactive compounds producers. Twenty nine actinomycetes strains were isolated from southeast of Rabat region. Morphological and cultural characterization, pigment production and antibacterial assay were carried out. All isolates (100%)...

Author(s): Ayoubi Hasnaa, Mouslim Assia, Moujabbir Sara, Amine Soukaina, Azougar Iman, Mouslim Jamal and Menggad Mohammed

February 2018

Pathological effects of staphylococcal species (S. aureus, S. xylosus and S. lentus) on some visceral organs (liver, kidney and bladder) of wistar rats following intraperitoneal inoculation

Following the intraperitoneal inoculation of 200 Wistar rats (96 males, 96 females and 8 controls) aged 2 to4 months with graded-doses of saline and peptone water broth cultures of Staphylococcus aureus, Staphylococcus xylosus and Staphylococcus lentus isolates obtained from urinary tract infection (UTI) in Enugu, Nigeria and typed down to species using API® Staph typing kit, the rats were observed for 72 h and were...

Author(s): Onyebueke Ebere Adaeze, Onyemelukwe Ngozi Felicia, Achukwu Peter Uwadiegwu and Onuba Augustine Chukwudum

February 2018

Cloud computing implementation in libraries: A synergy for library services optimization

Cloud computing is an internet based, remote driven and service oriented technology emerged to provide infrastructure as a service (IaaS), platform as a service (PaaS), software as a service (SaaS) among others. By implementing cloud computing, libraries will significantly reduce cost of maintaining systems, save energy, register a global outlook on the web, expose library patrons to multi-variant information resources...

Author(s): Ibrahim Wada  

February 2018

A survey of the awareness of the 2030 agenda: A case of libraries and librarians in Osun State, Nigeria

The sustainable development goals (SDGs) in this study includes those dedicated to eradicating poverty, promoting gender equality and empowering women, ensuring inclusive and equitable quality education and promoting lifelong learning opportunities for all as well as developing a global partnership for development, all of which cannot be achieved without equitable access to information and freedom of expression. This...

Author(s): Abiola, A. Okunlola, Joseph, T. Oluwaniyi and Rachael, O. Oyedapo  

February 2018

Estimating the impact of state government spending and the economy on crime rates

The determinants of crime have been an area of numerous studies over time. In spite of this volume of work, interest in the causes of crime continues to persist. This paper investigates the determinants of variations in crime rates in the United States using cross-sectional state-level data. It explores the role of government spending and socio-economic variables and compares these determinants for the three years 1990,...

Author(s): Uchenna N. Akpom and Adrian D. Doss   

February 2018

Dietary intake and factors affecting food service of male prisoners living with human immunodeficiency virus at selected prisons in Kenya

Adequate dietary intake is important in achieving optimal nutrition and health for people before and during treatment of HIV. Inadequate nutrition causes health issues and fatalities among prisoners. Thus, this study assesses dietary intake and factors affecting food service among male prisoners living with HIV at selected prisons in Kenya. A cross sectional analytical study design was adopted on a sample of 113 male...

Author(s): Kavithe K. Rachel, Dorcus Mbithe D. Kigaru and Maoga W. Nyamota

February 2018

Evaluation of bacteriological and physicochemical quality of water supply systems in Welkite Town, Southwest-Ethiopia

Water supply systems provide consumers with drinking water that is adequately free of microbial pathogens to prevent waterborne diseases. The key to produce water of such desired quality is to implement multiple barriers, which control microbiological pathogens and chemical contaminants that may enter the water supply system. The objective of this study was to evaluate bacteriological and physicochemical quality of...

Author(s): Dessalew Berihun and Yonas Solomon  

February 2018

Anti-respiratory syncytial virus activities of leaf extracts of Alchornea cordifolia and Alchornea floribunda

Respiratory syncytial virus (RSV) causes viral infection of a global proportion. Currently, there is no approved vaccine or useful antiviral drug against it. Natural products hold potential for discovery of anti-RSV agents. The present study assessed the anti-RSV activities of Alchornea cordifolia (AC) (Shumach. and Thonn.) Mϋll. Arg. and Alchornea floribunda (AF) Mϋll. Arg., Antiviral activities of AC and AF leaf...

Author(s): Damian C. Odimegwu, Festus Basden C. Okoye, Sylvester C. Nworu and Charles C. Esimone  

February 2018

Lower BMI cut-off than the World Health Organization-based classification is appropriate for Nigerians

Universally, Body Mass Index (BMI) is used to diagnose obesity, and is associated with cardiovascular disease, as well as significant morbidity and mortality.  Because the effect of obesity on health risk is influenced by ethnic background, age, and gender, using a universal BMI cut-off been questioned by some authorities or workers. Reports on appropriate BMI for Nigerians are scanty. Results of a cross-sectional...

Author(s): Raimi Taiwo Hussean and Dada Samuel Ayokunle

February 2018

Spatial pattern and influencing factors of county consumption level

The aim of this paper is to improve the level of consumption in the region and achieve sustained and steady regional economic growth. According to global autocorrelation calculation, the difference in county consumption level of the Wanjiang City Cluster since 2004 generally takes on an increasing trend, while the consumption level presents unbalanced development. Evolution of spatial distribution pattern indicates that...

Author(s): Li Jiulin, Chu Jinlong, Chen Xiaohua, Gu Kangkang, and Wang Yongzheng,  

February 2018

The role of service attributes in customer satisfaction: An analysis of classified hotels in Cameroon

This study aims to evaluate the influence of service dimensions’ satisfaction on hotel guest’s overall satisfaction. Confronting the theory originally stated with the specificity of satisfaction in the hotel sector, we developed hypotheses linking each of the service dimensions with overall satisfaction declared by the consumer. The data collected with a questionnaire were analyzed through a series of...

Author(s): Nkene Ndeme Richard, Nkiendem Felix, Essomme Innocent and Fokeng Sylvie  

February 2018

Does the market reward integrated report quality?

Although some studies show the benefits of adopting integrated reporting (IR), its real value has not yet been sufficiently investigated. As integrated reporting development implies high costs for the company, the management has to evaluate the economic advantage of such investment. This study aims to establish whether a high quality IR influences firm market value. Specifically, we investigate whether shareholders take...

Author(s): Simona Cosma, Maria Gaia Soana and Andrea Venturelli  

February 2018

Morphometric relationships of African big barb, Labeobarbus intermedius (Rüppell, 1836) in Lake Koka, Ethiopia

Morphometric relationships of African big barb, Labeobarbus intermedius (Rüppell, 1836) (Pisces: Cyprinidae) in Lake Koka, Ethiopia was studied based on the total number of 266 adult fish samples collected in April-May and July-August 2011. Fish ranging from 23.3 to 49.0 cm in total length (mean=35±4.1) cm and from 95.4 to 1200 g in total weight (mean 434.4±206.5 g) were randomly sampled. Of these,...

Author(s): Agumassie Tesfahun , Elias Dadebo and Mathewos Temesgen

February 2018

Allelopathic effects of alkaloid fraction of Crotalaria retusa Linn on growth and some biochemical parameters of bean seedlings (Phaseolus vulgaris

The study investigated the potentials of alkaloidal fraction of leaf and stem of Crotalaria retusa with a view to understanding its mechanism of allelopathy in bean (Phaseolus vulgaris) seedlings. The study involved collection of C. retusa (leaves and stems), identification, dried, pulverized and extracted with methanol to yield methanolic extract (MECR). Crude alkaloid fraction was prepared from MECR by a procedure...

Author(s): Ogunsusi M., Akinlalu A. O., Komolafe I. J. and Oyedapo O. O.

February 2018

Evaluation of the performance of some white seeded sesame (Sesamum Indicum L.) genotypes using GGE biplot analysis in Northern Ethiopia

Sesame (Sesamum indicum L.) known as queen of oil seed crops is mainly grown for its oil of local consumption, sources of income and great contribution for the national economy of Ethiopia. However, there is a low productivity and production due to environments, genotypes, interaction and management variation. Four sesame genotypes were evaluated for their interactions with environments and seed yield stability analysis...

Author(s): Fantaye Belay, Hintsa Meresaand Atsbha Gebreslasie

February 2018

Survival modeling of accident risks of vehicle drivers in Northern Region of Ghana

The primary objective of this article is to investigate how survival modelling can be used in traffic accident analysis to explain driver accident risk factors. Accident records of 398 drivers from 2007 to 2009 were obtained from Motor Traffic and Transport Department (MTTD), Ghana Police Service, Northern region. Cox proportional regression model was employed for the analysis using the SAS package. The conclusion was...

Author(s): Alhassan Faisal, Mamadou Lamine Diedhiou and Katara Salifu

February 2018

Sedimentary facies and depositional environments of the neoproterozoic sediments of the Gambaga-Nakpanduri massifs, Voltaian Basin

The classification of the sediments into facies and the various environments in which the sediments of the northeastern Voltaian basin were deposited has not been clearly described.  Using detailed field mapping together with petrographic studies, six sedimentary facies has been identified; F1 is defined by asymmetric wave formed ripple marks, F2 indicates flute casts on micaceous sandy shales, F3 has bifurcated...

Author(s): Mahamuda Abu

February 2018

Study of the roof behavior in longwall gob in long-term condition

Assessment of the roof behavior in longwall gob and estimation of the occurrence of caving and fracturing zones above mined panels are the main factors used in evaluating abutment stresses, ground subsidence, face support and adjacent structures design. The combined height of caving and fracturing zones is taken as equivalent to the height of destressed zone (HDZ) in this study. The long-term estimation of this height...

Author(s): Mohammad Rezaei, Abbas Majdi, Mohammad Farouq Hossaini and Iraj Najmoddini

February 2018

Efficacy of two locally available inert dusts against Sitophilus zeamais (Motschulsky) (Coleoptera: Curculionidae) of Stored Maize in Ethiopia

Dosage rates of 1.25, 2.5, 5 and 10% (w/w) of red and white locally available inert dusts were evaluated as protectants against maize weevils, Sitophilus zeamais in maize grain under laboratory conditions. Parental adult mortality, F1 progeny emergence, percent protection, percent grain damage and weight loss were measured as efficacy determining parameters. Mortality of the weevils was observed only after 4 days post...

Author(s): Berhanu Hiruy and Emana Getu  

February 2018

Firm specific determinants of corporate effective tax rate of listed firms in Nigeria

This study examines the Corporate Effective Tax Rates (ETRs) of non-financial firms listed in Nigerian Stock Exchange. The study also measures the neutrality of taxation within the Nigerian economic sectors and establishes the relationships between ETRs and firm specific characteristics of size, leverage, profitability, capital intensity, inventory intensity, labour intensity and auditor type. Data were extracted from...

Author(s): Yinka Mashood Salaudeen and Uchenna Celestine Eze

February 2018

Gas chromatography–mass spectrometry (GC-MS) analysis of the constituents of the fixed oils obtained from the barks, leaves and stems of Spondias tuberosa Arruda (Anacardiaceae)

Spondias tuberosa Arruda (Anacardiaceae) is an endemic tree in the Caatinga Brazilian Biome, known locally as "umbuzeiro" and used for various purposes, especially as food and folk medicine. In this study, it was realized for the first time, the extraction and characterization by gas chromatography-mass spectrometry (GC-MS) of the fixed oils of barks, leaves and stems of S. tuberosa. The constituents of the...

Author(s): Amanda Leite Guimarães, Ana Paula de Oliveira, Geisiane Suila Feitosa dos Santos Silva, Geórgia Sueley Bezerra, Inaiara Sousa, Jackson Roberto Guedes da Silva Almeida, Joana D&#;arc de Sousa Rodrigues, José Marcos Teixeira de Alencar Filho and Edigênia Cavalcante da Cruz Araújo  

February 2018

Humility and forgiveness as predictors of teacher self-efficacy

This study explores the predictive influence of teachers’ humility and forgiveness on their self-efficacy perceptions. The population of this research consists of teachers who work at public primary and secondary schools located in the central districts of Ankara, Turkey. The sample of the study is composed of 303 primary and secondary school teachers working in central districts of Ankara, Turkey. The research...

Author(s): Ferudun Sezgin and Onur Erdoğan  

February 2018

Adaptation of the PERMA well-being scale into Turkish: Validity and reliability studies

Seligman’s “well-being scale” PERMA evaluates people’s level of well-being in five dimensions: P: Positive and Negative emotions, E: Engagement, R: Relationships, M: Meaning, A: Accomplishment, N: Negative Emotion and H: Health.  This scale measures a person’s level of well being using five components. The measurement scale developed consists of 23 items with a scoring interval from 0...

Author(s): Eliüşük Bülbül Ayşe  

February 2018

Latent profile analysis of the good teacher characteristics in the 21st Century in the Northeastern Region of Thailand

This research aimed to analyze the Latent Group Profile, hereafter (LPA) of good teacher characteristics’ in the 21st century in the Northeastern region of Thailand. The samples were 4 groups, viz; 10 expert teachers for interviewing on the draft of the variable to develop the indicators; 12 teachers who won Guru Awards from Teachers Council for in-depth interviewing and use the data to adjust the variable to...

Author(s): Sunan Sripai and Ketkanok Wanawan  

February 2018

Studying the volatility effect of agricultural exports on agriculture share of GDP: The case of Egypt

This article aims to examine the long and short run relationship between agricultural exports and agriculture share of GDP. Links between series considered are assessed by co-integration analysis using Johansen co-integration technique and ECM-GARCH. Results indicate a positive link in the short and long term between agricultural exports and agriculture share of GDP, as well as co-integration between the pairs of series...

Author(s): Osama Ahmed, and Walid Sallam  

February 2018

Using the p-median location model to set up aerodromes for coverage fertilization of eucalyptus plantations

In this study an economic analysis was conducted to evaluate problem associated with a geographical information system (GIS) using facility location models for the p-median in order to optimize the location of aerodromes for the aerial fertilization (coverage fertilization) of eucalyptus plantations. The location model was tested on a 9,095.65 ha farm located in the Três Lagoas municipality in the Mato Grosso do...

Author(s): Leonardo Pereira Fardin, Helio Garcia Leite, Daniel Henrique Breda Binoti, Carlos Antonio Alvares Soares Ribeiro, Vicente Paulo Soares, Antonio Santana Ferraz, Márcio Bernardi and Aguida Beatriz Travaglia Viana  

February 2018

Optimum plot size for experiments with papaya genotypes in field

The objective of this study was to determine a suitable plot size for field experiments with papaya genotypes. Two experiments were carried out using a randomized complete block design with 11 and 12 papaya genotypes, respectively. In both experiments, plots consisted of one row, with 10 plants each. Spacing between rows was 3.5 m, with 1.5 m between plants. The characteristic evaluated was fruit production in t ha-1 in...

Author(s): Edilson Romais Schmildt, Adriel Lima Nascimento, Alan de Lima Nascimento, Karina Tiemi Hassuda dos Santos, Renan Garcia Malikouski, Omar Schmildt, Clemilton Alves da Silva, Geraldo Antônio Ferreguetti, Márcio Paulo Czepak and Julián Cuevas  

February 2018

Performance of five potato varieties with regards to growth and production of mini-tubers under an aeroponic system in central highlands of Kenya

There is limited information on the performance of Kenyan potato varieties under aeroponic systems. Experiments were therefore carried out at the Kenya Agricultural Research Institute (KARI), Tigoni, under an aeroponic system in 2012 and 2013 to evaluate the growth and mini-tubers production of five varieties commonly grown in Kenya and differ in vegetative and reproductive characteristics. The experiment was set up in...

Author(s): Miriam W. Mbiyu, Charles Lung’aho, Susan A. Otieno, Moses W. Nyongesa, Margaret N. Muchui, and Judith N. Ogemma  

February 2018

Assessment of the knowledge and use of pesticides by the tomato farmers in Mwea Region, Kenya

Current cultivation of vegetables to meet food security standards requires the use of pesticides which reduce losses from pests and diseases. A cross-sectional survey for pesticides use in tomato farms was conducted in Mwea, Kenya to assess the practices and constraints faced by the farmers. Gender, level of education, the use of pesticides in farms, experience in tomato farming, list of common pesticides, periodicity...

Author(s): J. H. Nguetti , J. K. Imungi, M. W. Okoth, J. Wang’ombe, W. F. Mbacham and S. E. Mitema  

February 2018

Definition of smallholder Sheko cattle keepers’ breeding objectives through phenotypic ranking and choice experiments in Ethiopia

This study aimed at identifying Sheko cattle keepers' preferences by way of phenotypic ranking and hypothetical choice experiment in their habitat in order to define the indigenous selection criteria. The ranking experiment report was based on 15 cows and 6 to 9 bulls. Three animals of the same sex were randomly assigned in one group that resulted into five groups for cows and two to three groups for bulls. Thirty...

Author(s): Elias Bayou, Aynalem Haile, Solomon Gizaw and Yoseph Mekasha  

February 2018

Effects of vanadium on oxidative stress and electrolytes balance of dyslipidemic male rats treated with simvastatin

Dyslipidaemia is characterised by enhanced production of reactive oxygen species and increased oxidative stress, which may affect liver, kidney and heart function. It is considered as a critical risk factor for cardiovascular and liver diseases. The aim of our study was to assess the effect of vanadium chloride on the oxidative stress state of liver, kidney and heart functions along with electrolyte balance during...

Author(s): Saber M. Eweda,#, Naser L. Rezk,#, Ahmed M. Ahmed and Omar A. Rezk

February 2018

Antioxidant and antibacterial activities of essential oil of Lippia sidoides against drug-resistant Staphylococcus aureus from food

Chemical composition, in vitro antioxidant and antibacterial activities of essential oil of Lippia sidoides (EOLS) and its major constituent was investigated. Chemical composition was analyzed in a gas chromatograph coupled to a mass spectrometer (GC/MS). Antioxidant activity (AA) was obtained using 2,2-diphenylpicrylhydrazyl (DPPH) radical scavenging assay. Antimicrobial activity was tested using disk-diffusion test...

Author(s): Renata Albuquerque Costa, Theodora Thays Arruda Cavalcante, Carla Thiciane Vasconcelos de Melo, Domingos Lucas Araújo Barroso, Hider Machado Melo, Mário Geraldo de Carvalho and Francisco Eduardo Aragão Catunda Júnior,

February 2018

Chlorella vulgaris DPSF 01: A unique tool for removal of toxic chemicals from tannery wastewater

The present study investigated the removal of toxic pollutants and reduction of heavy metals from tannery wastewater using Chlorella vulgaris. The physiochemical parameters like pH, electrical conductivity (EC), biological oxygen demand (BOD), chemical oxygen demand (COD), total solids (TS), total dissolved solids (TDS), chloride, total hardness (TH), bicarbonate, magnesium, ammoniacal nitrogen, phosphate and heavy...

Author(s): P. S. Subashini and P. Rajiv

February 2018

Efficacy of lantana (Lantana camara) extract application against aphids (Brevicoryne brassicae) in rape (Brassica napus) over varied periods of time

Contact bioefficacy of lantana (Lantana camara L.) leaf extract (LLE) against rape aphids (Brevicoryne brassicae L.) in three rape (Brassica napus L.) seed brands at given time (hours) periods was explored. Samples of pounded young leaves mixed with distilled water (3 kg l-1, 2 kg l-1 and 1 kg l-1) were prepared. Dimethoate (7.5 ml 10 l-1) and distilled water were the positive and negative controls, respectively....

Author(s): Culver Mvumi and Precious R. Maunga

February 2018

The antibacterial activity of bacterial endophytes isolated from Combretum molle

Although intense research has gone into the exploration of various Combretaceae species towards the discovery of therapeutic relevant compounds, their endophytes have never been explored as potential repositories of alternative sources of novel and medically beneficial equivalents. In the present study, five bacterial endophytes (Lysinibacillus, Staphylococcus, Enterobacter, Pseudomonas and Bacillus species) were...

Author(s): Mamonokane O. Diale, Eunice Ubomba-Jaswa, and Mahloro H. Serepa-Dlamini

February 2018

Prevalence of extended spectrum β-lactamases in multidrug resistant strains of Gram-negative bacteria

Extended spectrum beta-lactamases (ESBLs) are enzymes that are now becoming major sources of resistance to β-lactamase antibiotics more especially in enteric bacteria such as Klebsiella pneumoniae, P. aeruginosa and Escherichia coli. Increase in the frequency of the β-lactam resistance in bacteria has become a serious threat for treating bacterial infections caused by enterobacteriaceae. This study aims to...

Author(s): Thonda Oluwakemi Abike, Oluduro Anthonia Olufunke and Osuntokun Oludare Temitope

February 2018

Investigation on biosuppression of Fusarium crown and root rot of tomato (Solanum lycopersicum L.) and growth promotion using fungi naturally associated to Solanum linnaeanum L.

Fusarium crown and root rot (FCRR) is a serious tomato disease in Tunisia which is difficult to control due to its soilborne nature and to the luck of genetic resistance. In the current study, native Solanum linnaeanum was explored as potential source of effective fungal agents for disease biocontrol. Eight fungal isolates, recovered from S. linnaeanum plants growing in the Tunisian Centre-East and shown able to...

Author(s): Ahlem NEFZI, Rania AYDI BEN ABDALLAH, Hayfa JABNOUN-KHIAREDDINE, Nawaim AMMAR, Lamia SOMAI, Walid HAMADA, Rabiaa HAOUALA and Mejda DAAMI-REMADI

February 2018

Effect of maize and peanut crops on Ivory Coast northern soil biological activities and their response to arbuscular mycorrhizal fungi inoculation

The overuse of chemical fertilizers in agriculture remains an environmental concern, especially in sub-Saharan areas of Africa where soil degradation lead to low crop yield. Crop inoculation with beneficial microorganisms appears a good alternative to reduce chemical substances and improve yield. In this regard, studies on soil biological activities and inoculation experiments on maize (Zea mays L.) and peanut (Arachis...

Author(s): Gisèle Amoin Koffi,, Fatou Ndoye,, Soumaïla Dabonné, Niokhor Bakhoum,, Mathieu Ndigue Faye, Dioumacor Fall, and  Diégane Diouf,  

February 2018

Quantitative proteomic analysis of Isorhamnetin treatment in human liver cancer cells

Isorhamnetin (Iso) exhibits antitumor effects in promyelotic leukemia and lung cancers. However, its effect in liver cancer is not clear. This study explored the effects of Iso in human liver cancer cells and profiled the differential proteins upon Iso treatment, which contributes to a better understanding of its anticancer mechanisms. Stable isotope labeling with amino acids in cell culture-mass spectrometry:...

Author(s): Runhuan Fei and Haiyan Wei

February 2018

Green synthesis of silver monometallic and copper-silver bimetallic nanoparticles using Kigelia africana fruit extract and evaluation of their antimicrobial activities

Aqueous extract of Kigelia africana fruits have been utilized in the syntheses of silver nanoparticles (AgNPs) and copper-silver bimetallic nanoparticles (Ag-CuNPs). The synthesized nanoparticles have been characterized using UV-vis, Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy/energy dispersive X-ray analysis (SEM/EDX), x-ray diffration (XRD) and transmission electron microscopy (TEM)....

Author(s): Providence B. Ashishie, Chinyere A. Anyama, Ayi A. Ayi, Charles O. Oseghale, Elijah T. Adesuji and Ayomide H. Labulo

February 2018

Growth and physiological responses of coffee (Coffea arabica L.) seedlings irrigated with diluted deep sea water

Concentrations of 5, 10, 20, and 40% deep sea water (DSW) were tested, with irrigation water serving as the 0% control (tap water) on coffee (Coffea arabica L.) seedlings. The results showed that the growth parameters were affected significantly (α < 0.05) by the irrigation of 20 and 40% deep sea water. There were significant differences (α < 0.05) among treatments in stomata density/mm2, stomata...

Author(s): Mesfin Haile and Won Hee Kang

February 2018

Sole and combined effect of three botanicals against cowpea seed bruchid, Callosobruchus maculatus Fabricius

The bioactivity of three botanical powders in sole and combination against Callosobruchus maculatus (Fab.) was investigated at 29±3°C and relative humidity (R.H.) OF 65+5% in the laboratory. The appropriate mixing ratio of Cymbopogon citratus (C), Alstonia boonei (A) and Hyptis suaveolens  involved seven  combinations viz., C:A, C:H, A:H, C:A:H, H2:C:A, A:C2:H, H:C:A2 in simple ratios 1:1, 1:1, 1:1,...

Author(s): O. M. Azeez and O. O. R. Pitan  

February 2018

Land use effects on soil erodibility and hydraulic conductivity in Akure, Nigeria

This research was carried out to investigate the effects of three land use categories (grazed, cropped and forest land) on soil erodibility and hydraulic conductivity. Hydraulic conductivity was determined by a steady‐state flow using a mini‐disk infiltrometer while soil erodibility was determined following the Wischmeier and Smith equation. A suction rate of 2 cm s-1 was chosen for field infiltration measurement and...

Author(s): Yusuf Habeeb Ajibola, Oguntunde Philip Gbenro, and Lawal Abosede Khadijah  

February 2018

Evaluation of the effect of genotype, environment and genotype X environment interaction on white common bean varieties using additive main effect and multiplicative interaction (AMMI) analysis in the mid-altitude of Bale zone, Southeastern Ethiopia

Twelve white common bean genotypes were evaluated along two checks at three diverse locations in the mid-altitude of Bale zone, southeastern Ethiopia for two consecutive years 2014 and 2015 in order to determine their stability. The genotype by environment interaction (GEI) has an influence on the selection and recommendation of cultivars. The objective of this work was to see the effect of GEI and evaluate the...

Author(s): Tadele Tadesse, Amanuel Tekalign, Behailu Mulugeta and Gashaw Sefera  

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