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Listing 54 - 20 of 1962 results.

Does Managerial Emotional Biases Affect Debt Maturity Preference? Bayesian Network Method: Evidence from Tunisia

Research Article
Author(s): AZOUZI Mohamed Ali, JARBOUI Anis
Journal: Financial Risk and Management Reviews

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Abstract
This study documents that managerial characteristics’ play an important role in determining corporate debt maturity. Specifically, we focus on the relationship between the managerial biases and firm debt maturity preference. Empirical analysis of the relationship between emotional bias and debt maturity using Bayesian Network Method. We distributed a questionnaire among 100 Tunisian managers to measure their emotional biases. Our results have revealed that the behavioral analysis of debt maturity preference implies leader affected by behavioral biases (optimism, loss aversion, and overconfidence) presence prefer long term debt maturity allowing this protect against the takeover operation Russianness.
Contribution/ Originality
The paper pushing organizations managers to choose according to their emotional level (applied emotional capacity test up psychometric testing). In addition, it increases the validity of inferences from the research. This paper incites governments to establish training programs aimed at the development of learning of emotional capacity.

Economics » Financial Risk and Management Reviews » Month: 06-2016 Issue: 1

Nutrient Composition, Amylose Content and Pasting Characteristics of Some Elite Accessions of Nerica Rice

Research Article
Author(s): Anuonye, J.C., Chinma. C.E., Olukayode, J., Suleiman, A.
Journal: Journal of Food Technology Research

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Abstract
Eighteen elite lines of Nerica rice were assessed for proximate, amino acid composition, amylose content and pasting viscosity. The aim was to nominate the lines for further multilocational yield trails and eventual release as varieties. The lines were parboiled by soaking in hot water (75oC) for 9-20hrs and then steamed for 40-45minutes at75oC in a steamer. Raw and parboiled samples were dehusked and polished and used in subsequent evaluations. The results indicated that protein varied from7.47+0.21to 11.73+0.15% parboiled samples and from 6.87+ 1.01to 11.65+ 0.51% for the unparboiled or raw samples. Fat also varied from 5.57+ 4.22- 6.00+ 0.54 the parboiled samples and from 5.33 to 6.33+ 0.5% for the unparboiled samples. The amino acid profile showed that both parboiled and unparboiled samples met the Food and Agricultural Organization (FAO) requirements for infants, adolescent and adults for histidine, threonine, valine and isoleucine and leucine. Both samples and the check were however deficient in lysine (4.01-4.60). Parboiling did not significantly (p<0.5) improve the proximate and amino acids composition of samples. The unparboiled milled samples had higher amylose content (23.84 – 50.85%) compared to(12.85 – 31.81%) of the parboiled samples. The amylose content of the parboiled samples placed them in the intermediate amylose category. The pasting properties showed that raw samples exhibited conventional non-waxy cereal pasting characteristics while the parboiled samples indicated destructuring in the pasting profile. The results were indicative that the NERICA LINES would have high cooking qualities.
Contribution/ Originality
This paper discusses the nutrient composition of NERICA accessions been bred for eventual release as varieties. This work show that the NERICA lines are not superior in both chemical and nutritional composition to released local varieties. However they will exhibit better cooking qualities.

Agricultural Sciences » Journal of Food Technology Research » Month: 03-2016 Issue: 1

Cubic Dual Ideals in BCK-Algebras

Research Article
Author(s): B. Satyanarayana, A.A.A. Agboola, U. Bindu Madhavi
Journal: International Journal of Mathematical Research

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Abstract
In this paper we introduce the concept of cubic set to dual sub algebras and dual ideals in BCK-algebras and investigate some of its properties. The relationship between dual sub algebras and cubic dual sub algebras are given.
Contribution/ Originality
The primary contribution of this paper is application of cubic set to dual ideals in BCK-algebras and investigates some of its properties. This study originates new definition cubic dual ideal in BCK-algebras.

Arts and Education » International Journal of Mathematical Research » Month: 02-2016 Issue: 2

Internationalizing Teacher Education: A U.S. – Vietnam Case Study

Research Article
Author(s): Cameron White
Journal: International Journal of Education and Practice

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Abstract
The article uses narrative to describe a teacher education partnership between two universities - one in the U. S. and one in Vietnam. The article discusses the rationale for cross-cultural projects in education and also outlines the in-country experiences of the program directors. The experience of the partners is detailed as a case study for developing international education partnerships. Specific themes include internationalizing education, globalization, teacher education, and cross-cultural partnerships.
Contribution/ Originality


Arts and Education » International Journal of Education and Practice » Month: 03-2016 Issue: 3

Managing Public Perception towards Local Government Administration

Research Article
Author(s): Nursyahida Zulkifli, Shamsinar Rahman, Suzei Mat Nurudin, Saidatul Akma Hamik, Ahmad Shah Pakeer Mohamed, Rugayah Hashim
Journal: International Journal of Public Policy and Administration Research

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Abstract
This paper highlights the efforts by the Seremban Municipal Council in encouraging participation among local community at their administrative area. Public participation is the most vital component in a good governance model for local governments in achieving effective and efficient administration. It is very important for the local government to ensure the local community participates in the activities carried out by the council. Through interviews with public administrators of local authorities and secondary data gathered from the Seremban Municipal Council as well as the Ministry of Housing and Local Government, the findings showed that there are challenges in public participation at the local government level. This is due to the public’s perceptions towards the local authority’s activities. In managing this challenge, awareness campaigns on local government activities should be conducted regularly. The findings from this study are significant in ensuring two-way communication and rapport between the communities and the local authority. This way, value added benefits can be shared between the stakeholders on a win-win situation.
Contribution/ Originality
This study contributes in the public participation literature by revealing that the public has an idea and perception that they should not interfere in the administration of the council. The wrong understanding should be managed by the council to ensure that public participation can successfully be implemented.
Economics » International Journal of Public Policy and Administration Research » Month: 06-2016 Issue: 2

Preference of Learning Styles and its Relationship with Academic Performance among Junior Secondary School Students in Dutse Local Government Area, Jigawa State, Nigeria

Research Article
Author(s): Joy N. Njoku, Basiru Abdulhamid
Journal: International Journal of Education and Practice

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Abstract
The thrust of the study was to investigate the preference of learning styles and its relationship with academic performance among Junior Secondary School Students in Dutse Local Government Area, Jigawa state, Nigeria. The study employed survey design. The statistics used for analysis of data were mean, percentages and Pearson Product Moment Correlation Coefficient. From thirty Junior Secondary Schools in the Local Government Area, ten schools were randomly selected. Out of a total students population of two thousand, two hundred students in the selected schools, three hundred and twenty seven students were randomly selected using simple hat and draw method. This sample size was determined using Krejcie and Morgan (1970) table for determining sample size. Two research instruments were used for data collection, namely Barsch leaning style inventory and Academic Performance Test. The result revealed that 217 of the student’s preferred kinesthetic learning style, 66 of them preferred visual style while 44 of them preferred auditory style. It was also noted that the learning style of the students affected their academic performance because the performances of students correlated with the learning styles they preferred. It is recommended that learning should be made more practical since most of the students learnt by doing.
Contribution/ Originality
The study is one of the few studies which have investigated preference of learning styles among secondary school students in Nigeria with Jigawa State as a focal point. Correlating learning styles with academic performance among Junior secondary school students further enhances teaching and learning in Dutse.

Arts and Education » International Journal of Education and Practice » Month: 03-2016 Issue: 3

Development of a Rating Scale for Measuring Teacher Classroom Autonomy in Secondary Schools in Southwestern Nigeria

Research Article
Author(s): Ruth Olufunmilayo Diyan, Alaba Adeyemi Adediwura
Journal: International Journal of Education and Practice

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Abstract
The study developed Teacher Classroom Autonomy Scale (T-CARS) and estimated the validity and reliability of the scale as well as establishing the scale factor structure. The study adopted a survey design. The population comprised secondary school teachers in southwestern Nigeria and a sample of 1440 teachers that were selected from 72 secondary schools using multistage sampling procedure. Two instruments, T-CARS and School Participant Empowerment Scale (SPES) were used for data collection. Data were analysed using factor analysis and reliability analysis. The results showed that the 40-items T-CARS have seven factors of teacher classroom autonomy that accounted for 91.46% of the total scale variance and significantly converge with the SPES (r = 0.611). The internal consistency of the scale was r=0.913 (Cronbach), and r=0.736 (Spearman Split-half), p< 0.05. The study concluded that the T-CARS developed in this study is reliable, valid and suitable to measure teacher classroom autonomy in Southwestern Nigeria.
Contribution/ Originality
The study generated appropriate, valid and reliable items with which teacher classroom autonomy can be measured. It also provided information on ways through which school administrators; teachers and other stakeholders can ensure that teachers have good institutional knowledge in order to effectively address imagined constraints on teaching and learning.

Arts and Education » International Journal of Education and Practice » Month: 04-2016 Issue: 4

Evaluation of Improved Varieties of Teff in West Belessa, Northwest Ethiopia

Research Article
Author(s): Daniel Tadesse, Teferi Alem, Tesfaye Wossen
Journal: Review of Plant Studies

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Abstract
An experiment was conducted at West Belessa district of Northwestern Ethiopia during 2013 main cropping season in order to identify and promote well adapted and promising genotypes of teff. The experiment was laid out in a randomized complete block design with three replications. The data recorded were plant height, spike length, number of tillers per plant, grain yield, biomass yield and harvest index. The data was analyzed using SAS software and means were separated using least significant difference. The analysis showed that varieties varied significantly for plant height, spike length (P<0.001), grain yield, biomass yield (P<0.01) and harvest index (P<0.05). Varieties were not significant for number of tillers per plant. Dukem was shown to be high yielder variety followed by the varieties Boset and Mechare with the values of 1963.7, 1772.0 and 1743.7 kg ha-1, respectively. The varieties Dukem, Kuncho and Mechare were found to be having high biomass with the values of 6111.3, 5833.3 and 5555.3 kg ha-1, respectively.  Dukem was superior in almost all the agronomic traits evaluated while the local varieties Awra tef and Bunign were out performed by most of the improved varieties of teff tested. The varieties evaluated had a wide genetic background for the studied traits, thus showing grain yield ranges from 1012.0 to 1963.7 kg ha-1.  Therefore, based on objectively measured traits, the variety Dukem was found most promising having the potential to increase the average yield of tef in West Belessa district and is therefore recommended for general cultivation.
Contribution/ Originality
This study is one of the very few studies which have evaluated improved varieties of teff in moisture stress areas in Ethiopia in general and West Belessa in particular. The study has evaluated fourteen varieties by scientifically comparing them with very important traits and come up with valid conclusion.

Agricultural Sciences » Review of Plant Studies » Month: 01-2016 Issue: 1

Assessment of Nutrient and Sediment Loads in Buhisan, Bulacao and Lahug Rivers, Cebu, Philippines

Research Article
Author(s): Fleurdeliz F. Maglangit, Ritchelita P. Galapate, Eukene O. Bensig
Journal: International Journal of Sustainable Energy and Environmental Research

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Abstract
The study aimed to provide baseline data by assessing the nutrient levels and sediment load in Buhisan, Bulacao and Lahug Rivers. Specifically, the study assessed the nitrates, Total Phosphorus (TP), Total Suspended Solids (TSS) and Total Dissolved Solids (TDS) concentrations of the rivers. Water samples were taken by grab sampling from three designated sites (upstream, midstream and downstream) along each river. Laboratory analyses were performed according to standard protocols. Results of the study were compared with the standard set by the Department of Environmental and Natural Resources (DENR). The nitrate, TSS and TDS levels did not exceed the allowable concentration set by the government but the TP did. The mean TP values observed at Buhisan, Bulacao and Lahug Rivers ranged from 0.10-1.82 mg∙L-, 0.05-0.48 mg∙L-, and 0.17-2.75 mg∙L-, respectively. The TP levels in the midstream and downstream areas of Buhisan and Lahug Rivers exceeded the 0.4 mg∙L- limit. High TP levels could be attributed to anthropogenic sources like untreated domestic waste discharges, unsanitary sewer systems in the surrounding communities, and runoffs from fertilized backyard gardening, and piggery.
Contribution/ Originality
This study provides baseline information on the water quality of Buhisan, Bulacao, and Lahug Rivers in Cebu. The results of the study will be used for the monitoring, management, and rehabilitation of these river ecosystems.

Energy & Environmental Sciences » International Journal of Sustainable Energy and Environmental Research » Month: 03-2016 Issue: 1

On Generation of Renewable Energy from Road Traffic

Research Article
Author(s): Hiba Najini, Senthil Arumugam Muthukumaraswamy
Journal: International Journal of Sustainable Energy and Environmental Research

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Abstract
This paper investigates the possibility of generating green power from day to day road traffic. This source of green energy is obtained from the proposed systems that harness the wasted energy such as the kinetic and vibrated energy from everyday traffic. These include two proposed systems that were designed and implemented using the MATLAB-Simulink platform. In the first proposed system, the renewable energy is generated using compressed air which is suitable for developing countries and the second proposed system is designed such way to another system to deduce electricity by harvesting the kinetic and vibration energy. The second proposed system is suitable for a developed country based on the implementation expenditures. The system was designed considering all the factors that involved producing a realist outcome. These factors include the load factor, heat loss, power loss, frictional losses and the switching losses that dwell into the field of fluid mechanics, power electronics and element analysis. The system performance was also determined by considering the nature and characteristic properties of the materials, motors and generators used; and the usage time of the system. As a result, incorporating the necessary factors involved in the system designing, the power generated under traffic rate condition at peak and off peak hours for each system was estimated. The obtained results proved that substantial amount of power are generated during peak traffic hours using the two proposed methods.
Contribution/ Originality
This paper contributes to the very first logical analysis of obtaining power production in kWhr for various case studies. The analysis performed takes into consideration the load factor, speed of travel and impact of stress and strain of the vehicles on the energy harvesters along with its energy penetration level.

Energy & Environmental Sciences » International Journal of Sustainable Energy and Environmental Research » Month: 06-2016 Issue: 2

“Structural Post-Disaster Damage Classification with Consideration of Liquefaction Due To Flood: Manek Urai, Kelantan, Malaysia”

Research Article
Author(s): Chau-Khun Ma, Yousef Karimi Vahed, Mohammadamin Azimi, Asma Bagherpourhamedani, Sarajul Fikri Bin Mohamed, Mahmood Md. Tahir, Muhd Zaimi Abd Majid
Journal: International Journal of Sustainable Energy and Environmental Research

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Abstract
Natural disasters such as flood which are related to weather, occurring in a lot of places in the world. Environment deterioration and human life damage are the recorded results of floods. Between years 2006 till 2008 due to heavy monsoon rainfalls, a number of floods have generated along Malaysia's in different parts of the country. The critical zones in term of flood damage are located in the east coast of peninsular Malaysia in the states of Kelantan, Terengganu and Pahang. Manek Urai, as a rural area due to its type of buildings was one of the most vulnerable areas during Kelantan flood in 2014. As a proven fact, the victims need to be informed about housing options at the first one week after disaster. The evaluation of building damage must be conducted quickly and exactly. It is a clear fact that building damage survey using proper damage chart is more effective. This paper presents the results of site investigation according to the damage chart for damage assessment, and classifies photographic data of Manek Urai area, based on the damage chart. In addition, the damage chart of timber structures affected by liquefaction is localized.
Contribution/ Originality
This study is one of very few studies which have investigated the level of structural damage in flood affected area (Manek Urai, Malaysia) and evaluate the effect of using proper and localized building damage chart in order to increase the accuracy of disaster management.

Energy & Environmental Sciences » International Journal of Sustainable Energy and Environmental Research » Month: 03-2016 Issue: 1

Rheological Studies of Texture-Modified Chicken Rendang with Tapioca and Sago Starches as Food Thickener for Patients with Dysphagia

Research Article
Author(s): Z. A. Syahariza, A.Z. Nuraihan, M.H. Norziah, A. Fazilah
Journal: Journal of Food Technology Research

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Abstract
Dysphagia refers to the term of having difficulty in swallowing or moving foods and liquids from the mouth to the stomach, which will lead to dehydration and malnutrition. Texture modified food is one of common method used in dysphagia management, by altering the rate of food travelling down the pharynx. In this study, texture modified chicken rendang was developed to comply Texture C (fine puree with lump free) as outline by Australian dysphagia standard. Rendang, one of popular traditional dish in Malaysia was selected; aim to introduce high protein diet in patient with dysphagia problem. Texture modification was carried out by adding commercial thickener, and later was compared to formulation with addition of tapioca and sago starch as the thickener. Effect of using different types of food thickener, together with different level of starch addition and serving temperature on the rheological properties of developed food were investigated. Results showed that all thickened samples demonstrated a shear thinning effect throughout the temperature studied, contributed by starch integrity loss due to heating. Both storage modulus (G') and loss modulus (G") values of samples containing starch decreases as temperature increases, indicating a weak gel like properties associated with each sample. The addition of 5% of starch was found to be optimal for the sample to remain stable even at 85°C. Tapioca starch could potentially use as cheaper thickener alternative due to its stable structure upon oscillation frequency and temperature increment during rheological analysis, when to compared to sago starch. Introduction of chicken rendang puree, thickened with starch potentially help to provide safer food for patients with dysphagia.
Contribution/ Originality
This study contributes in the existing literature of texture modified food for patients with dysphagia. This study investigates the possibility of using tapioca and sago starch as the source of food thickener, to replace the use of commercial thickener, which normally marketed at a higher price.

Agricultural Sciences » Journal of Food Technology Research » Month: 03-2016 Issue: 1

Effect of Contamination by Fungi and Yeast on the Physiochemical Characteristics of Gum Arabic Stored in Semi-Desert Climate of Khartoum City, Sudan

Research Article
Author(s): Fathia A. Adam, Hago M. Abdel-Magid, Abdelmonem M. Abdellah, Mohamed E. Osman
Journal: Journal of Food Technology Research

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Abstract
Structural properties of gum Arabic are one of the most important factors affecting the competitive prices in the domestic and overseas markets. Using laboratory standard methods, a number of   methods were used to characterize the main alterations of the components of Acacia Senegal var. Senegal gum Arabic induced by inoculation with some species of fungi and yeast. Results revealed that, depending on the inoculated microbial species, the pH, viscosity, nitrogen and protein were decreased to various levels. The sugars content has noticeably been affected viz. galactose was entirely consumed by Saccharomyces cerevisiaeand Penicilliumnotatum while .rhamanose was drastically decreased by all microbial species under study. Likewise, the number average molecular weight was decreased by all species. Therefore, it may be concluded that the factors encouraging microbial growth must be given due consideration under gum Arabic storage conditions.
Contribution/ Originality
This study contributes to the existing literature by drawing the attention to the environmentally safe storage of gum Arabic by using new detection and analytical procedures that are logically acceptable by gum Arabic researchers, producers and retailers. Moreover, this study contributes significantly to the current body of knowledge pertaining to gum Arabic handling after harvest.

Agricultural Sciences » Journal of Food Technology Research » Month: 03-2016 Issue: 1

Forest as a Redeemer: Experiences Drawn from Selected Rural Ejagham Communities in Etung Local Government Area of Cross River State, Nigeria

Research Article
Author(s): Okpiliya, F. I., Oka, P.O., Mbu, J.
Journal: Review of Environment and Earth Sciences

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Abstract
The role of forest in sustaining the lives of man generally cannot be over-emphasised. Generally, forest provides opportunities for food, shelter, trado-medical services, ecological services and income. The objective of this study is to evaluate the role of forest resources in the provision of food for the people of Etung in Cross River State. Six communities were chosen for the study. They include, Abia, Agbokim, Ajassor, Abijang, Etomi and Nsofang. One thousand, nine hundred copies of questionnaires were distributed to household heads in the study area. The student ‘t’ test was used to test for the seasonal variation in the number of persons involved in the exploitation and utilization of forest resources. The result of the study indicated that forest is a major source of food as it provides mushrooms, seed and spices, fruits, vegetables and a great variety of animals for the people of Etung. Also income generated in the area ranged from N10,000 to over N100,000 during the dry and rainy seasons. The student ‘t’ test analysis for the variation in the level of involvement of the people in the exploitation and utilization of forest resources revealed that there was significant seasonal variation in the level of involvement  of the people of Etung in only two forest resources – medicinal plants, (t(1938) = 3.416, P<.05)  and leafy vegetables, -(1938) =3.335, P<0.05). On the other hand the number of people involved in the exploitation of the other nine forest resources was not significant.
Contribution/ Originality
This Study documents the role of forest resources as a source of food for livelihood sustainability in the rural communities of Ejagham in Etung Local Government Area of Cross River State. This study also examined the level of involvement of the people of Etung in forest resource exploitation and utilization. Finally, this paper examined the seasonal variation in the level of involvement of the people in the study area in forest resource exploitation.

Energy & Environmental Sciences » Review of Environment and Earth Sciences » Month: 06-2016 Issue: 1

Attritional Structures the Major Factor in Increasing Endangerment by Earthquakes in Cities

Research Article
Author(s): Vali Abdollahi, Mohammad Hosseinzadeh
Journal: International Journal of Geography and Geology

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Abstract
Designed and organized structures show increased resistance compared to organic and compressed ones when facing natural dangers. Based on Islamic indices of the Department of roads and city construction regarding old constructs, the main organic weaves of cities are included in this definition. So, near one eighth of the city population of Iran resides in such structures. This matter has made attention to renovation and strengthening of this immense volume of city structure more necessary. In this planning, attention should be devoted to special design of spaces for safe evacuation, design of public passageways in accord with prevention of blockage at the time of earthquake, and dangerous city facilities such as gas provision networks and the building material of the ground. Only with strengthening of these structures, people can to some extent in case of occurrence of an earthquake have peace of mind and live without fear. In this paper which has been formulated based on an applied and descriptive-analytic method, it has been endeavored concurrently with analysis of past actions to introduce new executive strategies for the purpose of decreasing riskiness in these structures.
Contribution/ Originality
This study based on the approved urban development plans was conducted to document the dangers of earthquakes and its influence on the damaged area with regard to the specific circumstances of the tissues. Also, this study by analyzing the vulnerability factors provides executive solutions in this field.

Energy & Environmental Sciences » International Journal of Geography and Geology » Month: 08-2016 Issue: 8

Ontology with SVM Based Diagnosis of Tuberculosis and Statistical Analysis

Research Article
Author(s): Murugavell Pandiyan, Osama El-Hassan, Amar Hassan Khamis, Pallikonda Rajasekaran
Journal: International Journal of Medical and Health Sciences Research

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Abstract
As per WHO report, Tuberculosis remains one of the world's deadliest communicable diseases. In 2013, an estimated 9.0 million developed TB and 1.5 million died from the disease, 360,000 of which whom were HIV positive. Tuberculosis is still a major problem in advanced countries due to specific socioeconomic factors. From a global perspective, many laboratories use the same methods today that were in use long time ago for the detection of tuberculosis, because most of innovative current technologies for the detection of tuberculosis incurs high cost and cannot be afforded for all the countries. The detection of tuberculosis remains a challenge from the point of diagnosis and confirmation and there is a growing need of accurate diagnosis process. In this research, an ontology based classification of tuberculosis laboratory tests, environmental factors and other vital signs are studied along with support vector machine for the diagnosis of the tuberculosis disease. Through this method, we are able to measure of the weightage of the disease, the future onset of the disease and produce, an alert. Ontology based classification is widely used for knowledge based information grouping and structuring while SVM is used for accurate and fast machine learning algorithm. By combining Ontology and the training data based on various characteristic of the tuberculosis are passed onto linear SVM. The results we are able to achieve with this method are helpful for diagnosis support and future onset.
Contribution/ Originality


Medical Sciences » International Journal of Medical and Health Sciences Research » Month: 03-2016 Issue: 3

Perspectives and Attitudes on the Credibility of News on Social Networking (SNSS) Sites: Urgent Need of Research Work

Research Article
Author(s): Amjad Omar Safori, Nik Adzrieman Abdul Rahman, Rosli Mohammed
Journal: Journal of New Media and Mass Communication

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Abstract
The role of journalists, and journalism has progressed into a more digitalized journalism. Social Networking Sites (SNSs) allow people to take part in online activities and remove the barrier for online users to publish and share information at any place at any time. Among various social media, this review limits its review scope to SNSs, which have been considered to be the most pertinent social medium used in the field of communication management. This paper intends to show that credibility of social media is the key factor that enhances public engagement and communication effectiveness in the digital/social media. This paper is intended to elicit the factors that could affect the credibility of news from SNSs. Specifically, this article reviews on the needs to study journalist perspectives and attitudes on the credibility of news published on SNSs sites, and found few variables that could affect the credibility of the media and the news, which is linked to journalistic work. These include: the interactive media, technology acceptance, quality of news’ source, and the exposure of the media. The review of the literature suggests the dire research needs to focus on journalists’ perspectives and attitudes towards the new media to ensure credibility of news and journalism is continuously sustained and improved.
Contribution/ Originality
This study contributes to the existing literature that social networking sites contribute to the communication between people and institutions more effectively than other media. This study examines the urgent need to study the views of journalists about the credibility of social networking sites as a new source of news.

Social Sciences » Journal of New Media and Mass Communication » Month: 06-2016 Issue: 1

Development of the National Economies and the Foreign Trade Relations between Ukraine and Bulgaria (In the Period 2005-2014)

Research Article
Author(s): Dragomir Angelov Iliev, Yordan Iliev Neykov
Journal: Journal of Empirical Studies

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Abstract
The paper presents an analysis of the trends in the national economies of Bulgaria and Ukraine based on general macroeconomic indicators. An emphasis is put on the foreign trade between the two countries in the context of the global economic crisis and the crisis related to Ukraine’s territorial integrity. The analysis of the foreign trade between Bulgaria and Ukraine covers the main commodity groups in terms of their importance for the two economies.
Contribution/ Originality
The paper's core contribution is the study of the changes in the trade flows between Bulgaria and Ukraine within the context of the ongoing economic and geopolitical changes. The focus of the study is the impact of the various crises on trade flows and the basic macro-economic indicators of the investigated countries.

Economics » Journal of Empirical Studies » Month: 03-2016 Issue: 1

Analysis of Climate Change Effects among Rice Farmers in Benue State, Nigeria

Research Article
Author(s): Mbah, E.N., Ezeano, C.I, Saror, S.F
Journal: Current Research in Agricultural Sciences

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Abstract
The study was carried out in Benue state, Nigeria to analyze climate change effects among rice farmers. Questionnaire/interview schedule was used to collect data from a sample of 90 respondents in the study area. Data were analyzed using frequency distribution, percentage, mean score and standard deviation. Findings of the study revealed that majority (82.2%) of the respondents were males; married (96.7%) with a mean age of about 44 years.  Major perceived causes of climate change were use of generators which produce fumes (M=2.16), continuous cropping (M=2.11), human activities (tillage) (M=1.94), use of inorganic manure (M=1.92), burning of fire wood (M=1.94), bush burning (M=1.82), deforestation (M=1.80), increase in population which leads to loose of farmland (M=1.80), land degradation due to soil erosion (M=1.60), over grazing of farmland by livestock (M=1.66), and burning of fossil fuel by industries and automobile (M=1.50), among others. Results also indicate that unemployment (M=1.74), desertification (M=1.68), loss of farmland to flood and erosion (M=1.64), increase vulnerability to soil erosion (M=1.56), increase in pests and diseases infestation in rice farms (M=1.52), increase in growth of weeds (M=1.56), easy loss of water from the soil (M=1.48), reduces soil fertility (M=1.42), causes stunted growth in rice crops (M=1.42), among others were perceived effects of climate change in rice production. Human activities such as deforestation, overgrazing of farmland by livestock, use of inorganic manure, etc. should be discouraged in order to cushion the effects of climate change as well as increasing productivity among rice farmers.
Contribution/ Originality
This study contributes in the existing literature by indicating effects of climate change which has been a source of concern that poses serious environmental threat to mankind. Climate change has been a major challenge for stakeholders in agricultural production resulting in poor yields of crops and loss of revenue for farmers.

Agricultural Sciences » Current Research in Agricultural Sciences » Month: 03-2016 Issue: 1

The Role of Dy3+ Ion in the Luminescence of Caal2o4: Eu2+, Nd3+, Dy3+ Phosphors

Research Article
Author(s): Nguyen Ngoc Trac, Ngo Khoa Quang, Ho Thi Kim Phung
Journal: International Journal of Chemistry and Materials Research

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Abstract
The phosphors of CaAl2O4: Eu2+, Nd3+, Dy3+ with varying concentrations of Dy3+ ion were synthesized by the combustion method. The phase structure of CaAl2O4 was investigated by X-ray diffraction. The emission spectra of phosphors have a broad band with maximum at 444 nm due to electron transition from the 4f65d1 to the 4f7 of Eu2+ ion; and a small peak of 575 nm due to 4F9/2  6H13/2 transition of Dy3+ ions. The excitation spectra and the decay time of phosphors were investigated also. The phosphors of CaAl2O4: Eu2+, Nd3+, Dy3+ have a long persistent luminescence. In these phosphors, Eu2+ ions play the role activators. Dy3+ ions generate the hole traps that lead to the long persistent phosphorescence and act as the activators in the phosphors simultaneously. The concentration of Dy3+ ions co-doped has a strong influence on the luminescence of phosphor.
Contribution/ Originality
This study evaluates the role of Dy3+ ion in the luminescence of CaAl2O4: Eu, Nd, Dy phosphors by the investigated results. In this material, the Dy3+ ions play the role of luminescence centers and hole traps also; this is the new contribution of the paper.

Chemistry & Materials Sciences » International Journal of Chemistry and Materials Research » Month: 03-2016 Issue: 3