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Listing 43 - 20 of 1962 results.

Effects of Servant Leader Behaviors on Organizational Citizenship Behaviors for the Individual (OCB-I) In the Nigeria’s Utility Industry Using Partial Least Squares (PLS)

Research Article
Author(s): Abdu Jaafaru Bambale, Faridahwati Mohd Shamsudin, Chandrakatan a/l Subramaniam
Journal: International Journal of Management and Sustainability

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Abstract
This study examines the effects servant leader behaviors on employee organizational citizenship behaviors for the individual (OCB-I) among low and middle level employees of utility sector organizations in Nigeria. Specifically, this study examined the role of five servant leader behaviors - emotional healing, creating value for the community, conceptual skills, helping subordinates grow and succeed and putting subordinates first - on one major forms of employee citizenship behaviors - organizational citizenship behaviors that benefit the individual (OCB-I), A sample of 325 employees was used for empirical testing, and Partial Least Squares Method (PLS) algorithm and bootstrap techniques were used to test the hypothesized relationships. The results provided support for most of the hypothesized relationships except two. Specifically, emotional healing, conceptual skills, helping subordinates grow and succeed, putting subordinates first, are significantly and positively related to both OCB-I. However, creating value for the community is significantly but negatively related to OCB-I. Therefore, significant positive effects of emotional healing, conceptual skills, helping subordinates grow and succeed, and putting subordinates first suggest that the servant leader constructs are important in motivating followers’ OCB-I in organizations. Enhanced performance of OCB-I can improve the overall effective function of organizations. Contributions, limitations, and implications are discussed.
Contribution/ Originality
This study uses Partial Least Squares (PLS) as a new estimation methodology in the study of servant leadership and OCBs. Additionally, for the first time, effects of five servant leader behaviors were assessed against OCB-I. OCB-I is a pair component of Williams and Anderson (1991) OCB construct.
Business & Management » International Journal of Management and Sustainability » Month: 06-2015 Issue: 6

Employer Branding Impact on Employee Behavior and Attitudes Applied Study on Pharmatecual in Egypt

Research Article
Author(s): Mohamed Wahba, Dalia Elmanadily
Journal: International Journal of Management and Sustainability

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Abstract
This study is an exploratory study aims to investigate the impact of employer branding personality on employee differentiation, loyalty, satisfaction and affinity among organizations in Pharmaceuticals industry in Egypt. The survey was based on corporate character scale & employee behavior indicators that had been modified and used locally. The paper surveyed literature review of the employer branding (EB) concept and employee differentiation, loyalty, satisfaction and affinity & the pharmaceutical sector overview in Egypt. The study findings employer branding impact employee differentiation, loyalty, satisfaction and affinity as illustrated through paper. Which, deeply interwoven and opens up new questions to be explored by future research identified through paper. 
Contribution/ Originality
This study one of very few studies which had investigated the Employer Branding phenomenon related to the human resources management approach, as the few empirical researches focused on the talent management and employee retention not the employee behaviors and attitudes especially in Arab country like Egypt.
Business & Management » International Journal of Management and Sustainability » Month: 06-2015 Issue: 6

The Role of Health and Medical Professions in Indonesia

Research Article
Author(s): Adi Heru Sutomo
Journal: International Journal of Medical and Health Sciences Research

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Abstract
Introduction: In the context of public health, there are many problems in Indonesia, for instances the variation of many islands like Java , Sumatra, Kalimantan, Papua, Bali, Nusa Tenggara and so on, the huge number of population, the variation of  tribes, income, public health services, the making of public health policy and so on. In relation to the above mentioned, then the application of public health program are need to be taken into mind, because of based on that there will be the variations of role of health and medical profession in the many differences of occupations. Method & Discussion: this paper is made based on library studies that compile from many data which hopefully can be used to construct the right of scientific writing in the context of public health sciences in relation to the General Medicine. Result & Discussion: quite clear that there are many public health aspects that need to be taken into policy in relation to clinical aspects, health financing aspects, health economic aspects, and the like which in general it will come to at least the understanding of primary health services and secondary health services functions. There is a need to develop the real and perfect program of the General Physician who can be used to support the Primary Health Centre. It means that what the Indonesian need to be implemented is not only the health financing program, but also the right Medical Education Program, the right Family Medicine Program, the right Primary Health Care, the right Population Health Care, and so on. Conclusion: there is a need to manage the role of health and medical profession in Indonesia in a specific way, where then based on that they can work together in a harmony with many other occupations, for instance sociologist, psychologist, lawyer, technique experts, and so on. 
Contribution/ Originality
This study contributes in the existing literature of public health and primary care in Indonesia. This study uses new estimation methodology of Public Health’s policy and originates new formula to be healthy. The paper’s primary contribution is finding that there is a need to increase the doctor’s knowledge and skills.
Medical Sciences » International Journal of Medical and Health Sciences Research » Month: 08-2015 Issue: 8

RLS Fixed-Lag Smoother Using Covariance Information Based on Innovation Approach in Linear Continuous Stochastic Systems

Research Article
Author(s): Seiichi Nakamori
Journal: Journal of Information

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Abstract
This paper newly designs the RLS (recursive least-squares) fixed-lag smoother and filter, based on the innovation theory, in linear continuous-time stochastic systems. It is assumed that the signal is observed with additive white noise and the signal is uncorrelated with the observation noise. It is a characteristic that the estimators use the covariance information of the signal, in the form of the semi-degenerate kernel, and the observation noise. With respect to the RLS fixed-lag smoother, the algorithm for the estimation error variance function is developed to guarantee the stability of the fixed-lag smoother. The proposed estimators have the recursive property in calculating the fixed-lag smoothing and filtering estimates. Also, this paper proposes the Chandrasekhar-type RLS Wiener filter in linear wide-sense stationary stochastic system. Unlike the usual filter including the Riccati-type equations, the Chandrasekhar-type filter does not contain the Riccati-type differential equations and has an advantage of eliminating the possibility of the covariance matrix becoming nonnegative.
Contribution/ Originality


Computer Sciences » Journal of Information » Month: 06-2015 Issue: 1

Real-Time Workload Scheduling (RTWS) Algorithm for Cloud

Research Article
Author(s): Sabout Nagaraju, Latha Parthiban
Journal: Journal of Information

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Abstract
Cloud computing is the revenue gain and most advanced technology that has tremendous advantages over other technologies. It can be used as a utility for executing large size of real-time programs. These programs are decomposed into multiple inter-dependent tasks and executed on the multiple virtual processors where the open research issue is to be minimized make-span of the scheduling tasks. Our research aims to address this issue and degenerate the schedule length approximately equal to the available number of virtual processors. We proposed a real-time workload scheduling algorithm that does very well in reducing the number of initial clusters.  The experimental results show that the execution times for various kinds of the DAGs can be reduced as much as possible and improves the performance of the early load scheduling algorithms for distributed cloud environment.
Contribution/ Originality


Computer Sciences » Journal of Information » Month: 06-2015 Issue: 1

Free Maternal and Child Health Services in Enugu State, South East Nigeria: Experiences of the Community and Health Care Providers

Research Article
Author(s): Uzochukwu Benjamin, Okwuosa Chinenye, Ezeoke Ogochukwu, Onwujekwe Obinna
Journal: International Journal of Medical and Health Sciences Research

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Abstract
Enugu State, South East Nigeria launched free maternal and child health services in 2007 against the backdrop of high infant and maternal mortality rates in the State. This study determined the experiences and the perceptions of the community and health care providers on the free maternal and child health services. This was a cross sectional descriptive study carried out in Enugu state Southeast Nigeria. Pre-tested interviewer-administered questionnaire survey with 50 healthcare providers at health centers and 150 women of reproductive age were used to elicit information on the awareness, attitude, utilization and factors affecting utilization of MCH services, satisfaction with and willingness to continue use of these services. In addition, service data from the first health center to benefit from free MCH services was collected from 2007 to 2009. Among the women, there was a high level of awareness of the free MCH services. Antenatal (55.3%), maternal tetanus toxoid immunization (47.3%) and childhood immunization (44%) services were the most accessed. Factors likely to affect the intention to use the services were required services not rendered, drugs not available, delayed attention and distance to the health facility. There was a high willingness to continue use of maternal and child health services due to the free services, easy accessibility and availability of drugs. However, a fifth of the respondents paid for the free services. The service data showed an upward increase in utilization between 2007 and 2009. Although the health workers were receptive of the free MCH services, they opined that their workload had increased without any corresponding increase in their remuneration and that patients were making unnecessary visits to the health facilities to demand on drugs. There was a significant increase in MCH services utilization between 2007 and 2009. Conclusion: This study shows that the free MCH services have enhanced utilization of health services. However this has greatly increased the workload of health providers and consumers still pay for services. There is need therefore for provision of adequate personnel and infrastructure to cater for this increase. In the interim there should be better remuneration of health workers to motivate them to continue providing health services despite the workload. There is also need to check the reported over visitation of health centers for drugs created by the free MCH services and mechanisms should be put in place to ensure that the free services are really free.
Contribution/ Originality
This study contributes in the existing literature regarding the experiences of the community and health care providers towards free maternal and child health services in Enugu State, Nigeria.
Medical Sciences » International Journal of Medical and Health Sciences Research » Month: 09-2015 Issue: 9

A Pilot Study of Methods about Detection of Inter-Molecular Interactions As Individual Units of Intra-Cellular Structures, Intra- And Extra-Cellular Cascade Regulatory Pathways

Research Article
Author(s): Iskra V Sainova, Ilina P Valkova, Bistra Alexieva, Elena B Nikolova, Angel Baldzhiev, Daniela Karashanova, Biliana Georgieva, Angel Alishev, Marin Nenchev
Journal: World Journal of Molecular Research

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Abstract
Different methods for investigation on the mechanisms of participation of cell proteins in direct and/or indirect intra- and extra-cellular inter-molecular (protein-lipid, protein-protein, protein-RNA, protein-DNA interactions, etc.), by cascade regulatory pathways were developed and tested. These bio-molecules (in particular microtubule proteins and cyclins) have been found as parts from different complex structures from the nuclear, cytoskeleton and membrane cell fractions, as mitotic spindle, endocytosis vesicles, cell organelles, membrane structures, which are important for basic cell functions. The techniques, developed in the current study, could be useful for identification of the proteins/peptides, participating in the composition of these structures, but also of the interactions between them, on molecular and intra-molecular levels. For confirmation of the results obtained and the reliability of the applied methods, routine techniques as scanning electron microscopy (SEM) and transmission electron microscopy (TEM) assays were used. In all cases, the main goal is directed to search of molecules, participating in the control of cell growth and proliferation, as well as of such, which determine the further cell fate during cell differentiation and maturation.
Contribution/ Originality
The current study contributes in the existing literature with confirmation of the inter-molecular interactions for the cell differentiation direction. The current paper underlines the relationship between the changes in three different levels: cell morphology; intra-cellular organelles structure, and bio-molecules, by application of novel detection methods. 
Biological Sciences » World Journal of Molecular Research » Month: 06-2016 Issue: 1

Feminist Perspective of HIV and AIDS: Cases from the Kathmandu Valley of Nepal

Research Article
Author(s): Tej Bahadur Karki
Journal: Humanities and Social Sciences Letters

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Abstract
Human Immunodeficiency Virus (HIV) is behavior disease transmits from one person to another person due to unsafe sexual practices. HIV infected females are more suffered from the social stigma and discrimination. The main objective of this study is to identify the risk of HIV transmission among the women or girls from the feminist perspective. Simple random sampling technique was used to select the respondents from the vulnerable groups of Kathmandu valley of Nepal. Total 404 respondents were included from the reproductive age (15-49) groups. Analytical research design used to analyze the data. There was significant association found among the respondents in relation to the polygamy, human trafficking, trust on sex partners, gender based violence, early marriage system and gender inequality as an associated factor with increasing the risk of HIV transmission at .05% significance level. On the global scenario, women are more vulnerable than male for HIV transmission because of their biological as well as socio-cultural characteristic. In Nepal, majority of male are found living with HIV and AIDS than female but female are facing the stigma and discrimination than male because of the patriarchy thought.  Basically, socio-cultural practices are supporting the risk practices in Nepal so prevention program should be launched adopting the gendered based approach. 
Contribution/ Originality
This study contributes in the existing literature from the two aspects; one, it will provide the knowledge of feminist perspective of HIV and AIDS, second, it will provide research gap to address the issue of HIV and AIDS from the socio-cultural perspective. 
Social Sciences » Humanities and Social Sciences Letters » Month: 06-2015 Issue: 2

Assessment of Student Internship Programme By 2013/2014 Final Year Students of the Department of Basic Education, University of Education, Winneba, Ghana

Research Article
Author(s): Kweku Esia-Donkoh, Ahmed Kobina Amihere, Asonaba Kofi Addison
Journal: Humanities and Social Sciences Letters

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Abstract
The crucial role of internships in teacher education has made a lot of institutions of higher learning like UEW to adopt internship as an important component of their curricula with the view of providing opportunities to the students to gain theoretical and practical experience for their future careers. This study investigated the perception of 2013/2014 final year students of the Department of Basic Education, UEW, Ghana, on the Student Internship Programme (SIP) they undertook in the first semester of the 2013/2014 academic year. The purposive sampling technique was used to select all 209 students for the study. However, 188 students were used for the study because 21 students did not return their questionnaire. The findings revealed that generally, the students were uncertain as to the kind of support they were given by their partnership schools. However, they generally agreed that they gained adequate instructional skills from their mentors to assist them in the “real world”. Even though the students generally disagreed that they experienced challenges, they specifically indicated their agreement that the one semester SIP was inadequate. There was no significant difference in the views of the students on the instructional skills gained in terms of gender and the type of basic school (public or private) internship was undertaken. Among the suggestions is that adequate orientation should be given to students before they embark on the internship programme. Also, the university should ensure that all headteachers and mentors are regularly trained and oriented for the programme.
Contribution/ Originality
This study is one of very few studies which have investigated the views of final year students of UEW, Ghana, on SIP, especially when the period of internship was reduced from one academic year to one semester in 2012.  
Social Sciences » Humanities and Social Sciences Letters » Month: 06-2015 Issue: 2

Strategic Supply Chain Framework as an Effective Approach to Procurement of Public Construction Projects in Nigeria

Research Article
Author(s): N.U. Dim, A.C.C. Ezeabasili
Journal: International Journal of Management and Sustainability

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Abstract
A lot of abandoned construction projects, and failed projects in the Nigerian construction industry due to the ignorance to adopt and implement modern procurement strategy prompt this research work. A survey was conducted on 38 procurement practitioners at the Federal Ministry of Housing, Land and Urban Development, Major contractors, and Tier suppliers. The result from the survey showed that 78% of respondents confirmed that the current Nigerian public procurement system is less effective towards achieving an improved construction performance and the successful delivering of construction projects. More so, 22% of respondents argued that the Nigerian current procurement system is effective to achieve an improved construction performance if properly practiced in accordance with the Nigerian procurement act (2007). However, 74% of respondents believed that the strategic supply chain framework, as an approach to public procurement in Nigeria, will be more effective towards successful delivering of construction projects, and achieving improved construction performance. Also, the result from the three interviews conducted during this research showed that the reasons for the poor Nigerian current procurement system is attributed to poor pre-tendering and tendering processes, poor supply chain integration and management, Political interference and inference, and the corruption amongst the procurement stakeholders.
Contribution/ Originality
This study originates a new approach to procuring public projects in Nigeria which, when adopted, will improve the construction performance of public projects, and encourage socio-economic development through procured public projects.
Business & Management » International Journal of Management and Sustainability » Month: 07-2015 Issue: 7

Urban Park Use, Quality Evaluation, and Resident Satisfaction Indicators in the City of Zahedan, Iran

Research Article
Author(s): Javad RIKI, Masomeh HAFEZ REZAZADE, Gholamreza MIRI
Journal: International Journal of Geography and Geology

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Abstract
Urban parks have social, economic, and ecological roles, and play important role in improving the quality of life and community development. This study investigates the usage rate of urban parks by residents in the city of Zahedan, Iran, and evaluates the quality of them in terms of furniture and facilities, in this survey study participants are 520 of Zahedani residents divided into two ordinary (n=500) and expert groups (n=20) selected from the population using Cochran's formula. Number of evaluated urban parks was 101 distributed in five regions of the city. A survey questionnaire was designed for collecting data from participants.  Results showed that Zahedani residents use urban parks once a week (70%). Also we found out that the quality of urban parks in Zahedan was poor. Our findings revealed that “public toilet facilities”, “green spaces”, “safety”, “accessibility”, “welfare facilities”, “trails”, and “equipments” are most important indicators for evaluating resident satisfaction with public urban parks. Finally, our results reported that there was a significant relationship between residents’ satisfaction level and standard quality of urban parks.
Contribution/ Originality
This study is one of few studies which have investigated the park use of residents in Zahedan, Iran by conducting a survey, and evaluated the quality of urban parks and satisfaction indicators in this city.

Energy & Environmental Sciences » International Journal of Geography and Geology » Month: 04-2016 Issue: 4

Development, Preference Change, and Inequality in an Integrated Walrasian-General-Equilibrium and Neoclassical-Growth Theory

Research Article
Author(s): Wei-Bin Zhang
Journal: International Journal of Sustainable Development & World Policy

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Abstract
This study builds a model to analyze dynamic interdependence between economic growth, structural change, inequality in income and wealth, habit formation and preference change in a heterogeneous-households economy. The analytical framework is based on the Walrasian general equilibrium theory and the neoclassical growth theory. We show that the motion of the economy is described by a set of nonlinear differential equations. Analytically, we focus on transitional processes as well as economic equilibrium. For illustration, we simulate the motion of the economic system with three groups. We identify the existence of a unique stable equilibrium point and carry out comparative dynamic analysis with regard to some parameters. We show how, for instance, habit formation of a group affects the dynamic paths of all the variables of the economic system. 
Contribution/ Originality
An original contribution of this paper is the introduction of habit formation and preference change into the integrated Walrasian-general-equilibrium and neoclassical-growth theory recently developed by Zhang. The study examines dynamic relations between economic growth, economic change, and inequality with wealth accumulation and preference change.
Economics » International Journal of Sustainable Development & World Policy » Month: 06-2015 Issue: 3

Current Trends in Software Engineering Research

Research Article
Author(s): Gayatri Vijiyan
Journal: Review of Computer Engineering Research

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Abstract
Software engineering is dynamic disciplines that have continuous growth in research in identifying new methods, tools and methodologies that have cause vast improvement in software development and maintenance to be more reliable and efficient.   Past research critics on cost reduction, quality and flexibility have endless try to design and develop many ways to improve these sectors are still causing impacts to the software industry [1].  The new trends in software engineering research topics resolves under the research field of Cloud Computing, Big Data, Android Computing, Network Security and Software Engineering Project Management. Nevertheless, there are more other research areas in software engineering that have been intense researched and implemented in the industries. 
Contribution/ Originality


Computer Sciences » Review of Computer Engineering Research » Month: 09-2015 Issue: 3

Biological Functions of Plasma Membrane-Derived Extracellular Vesicles and Their Role in Diseases

Research Article
Author(s): Samuel Antwi-Baffour, Ransford Kyeremeh, Alexander Martin-Odoom, Mahmood A. Seidu
Journal: Journal of Cells

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Abstract
Plasma Membrane-derived Extracellular Vesicles (PMEVs) are membrane-coated vesicles of diameter 0.1 to 1.5µm, carrying various proteins inherent in their parental cells. PMEVs are released when cells undergo activation/apoptosis via blebbing and shedding and have a function in intercellular communication. Exposition of phosphatidylserine (PS) on the outer membrane leaflet that mark them as a biologically distinct entity could also explain a role for PMEVs in phagocytosis and thrombosis. The purpose of this review is to outline and discuss some of the functions of PMEVs in detail to throw more light on its biological effects as more research delve into emerging therapies targeting the microvesicle communication system. The role of PMEVs as a differentiation agent and therefore its possible use in differentiation therapy is discussed. In some experiments, the myeloid differentiating agents all trans retinoic acid (ATRA), phorbol 12-myristate 13-acetate (PMA) and histamine, which inhibit promonocyte proliferation, induced an intracellular Ca2+-mediated PMEV release from HL-60 promonocytes. These PMEVs caused HL-60 cells to enter G0/G1 cell cycle arrest and induce terminal monocyte-to-macrophage differentiation through TGF-β1 mediation.  The review also discusses the relationship between PMEVs and diseases where it is known that patients with certain inflammatory diseases show increased PMEV levels in the plasma. The review conclude on the fact that PMEVs have a lot of biological functions that are beneficial to the physiological functions in humans and therefore more work is required to elucidate their composition and the mechanisms involved in exertion of their effects.
Contribution/ Originality
This study contributes to the existing literature by addressing some aspects of extracellular vesicle release as well as their functions. The topic is of general interest and will be beneficial to potential readers who would want to clarify types of plasma extracellular vesicles, their functions or pathological effects.
Medical Sciences » Journal of Cells » Month: 06-2015 Issue: 2

Lactic Acid as Spacer between Poly Acrylic Acid and 4-Aminoantipyrine

Research Article
Author(s): Fiyral Mohammad Ali, Taghreed Hashim. AL-Noor, Saif Mohsin Ali
Journal: The International Journal of Biotechnology

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Abstract
 Due to many problems associated with drug release and side effects, we could design a novel drug delivery system through modification of poly acrylic acid (AA) with Lactic acid as a spacer between the polymer and 4-aminoantipyrine. In vitro drug release had been conducted successfully in basic medium in pH 7.4 and acidic medium in pH 1.1 at 37?. The prepared prodrug polymer was characterized by FTIR and 1H?NMR spectra. Physical properties and intrinsic viscosity of drug polymer were determined. The good results were obtained in the presence of spacer unit with comparing without spacer unit. 
Contribution/ Originality
This study contributes in the existing literature Synthesized compound from lactic acid as spacer between poly acrylic acid and 4-aminoantipyrine. This study uses new estimation methodology several physical tools .This study originates new formula.
Biological Sciences » The International Journal of Biotechnology » Month: 06-2015 Issue: 6

Spectrum of Morphological Changes and Prevalence of “P53 Signatures” In Tubal Fimbrial Epithelium in General Population and In Patients with Pelvic Serous Carcinomas

Research Article
Author(s): Gayatri Ravikumar, Julian Crasta
Journal: Cancers Review

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Abstract
Aim: Pelvic serous carcinomas (PSCs) are very aggressive malignancies and   present at advanced stage. A paradigm shift in the origin and pathogenesis of PSCs occurred when precursor lesions were found in the Fallopian tube fimbria in the prophylactic bilateral salphingo-ophorectomy (PBSO) specimens from BRCA positive patients. The knowledge of various benign and reactive alterations in the Fallopian tube is mandatory to distinguish these lesions from the true neoplastic changes. The study therefore aims to see the spectrum of morphological changes in the Fallopian tube epithelium (FTE) and to know the incidence of the various precursor lesions and p53 signatures in the tubal fimbria. Method: The study included 102 Fallopian tubes from patients undergoing salphingo – oophorectomies for gynaecological indications. The fimbrial end along with one cross section was embedded and examined for stromal and architectural changes, epithelial features and inflammatory infiltrates.  IHC for p53 and Ki67 was done to assess the presence of precursor lesions. Results: The mean age of patients’ was 49.9yrs. Family history of breast/ovarian cancer was present in 5 cases. Histopathology showed fibrosis (30%), Walthard nest (36%) , Wolfian duct remnants(14.7%), pigmentosis tubae(1%) , infiltration by metastatic carcinoma(7%),reactive atypia(6%), metaplasia(16%), tufting(46%),lymphocytes (9%) and plasma cells (2%). SCOUTS were seen in 12%, p53 signature and STIC in 6% and 4% respectively. Tuboperitoneal junction was identified in 15 cases and showed transitional metaplasia. Conclusion: The study describes the different morphological changes in the Fallopian tube in our population. The prevalence of cytological and molecular alterations leading to malignancy was low in general population. 
Contribution/ Originality
The paper’s primary contribution is finding that completely sampling the tubal fimbria with one cross section is a good practice to identify early precursor lesions which may otherwise go undetected. Knowledge of reactive /benign cellular proliferations is mandatory to help distinguish them from these precursor lesions.
Medical Sciences » Cancers Review » Month: 03-2015 Issue: 1

Share Options, Share Award and Firm’s Performance: Evidence from Malaysian Public Listed Companies

Research Article
Author(s): Nur Azizah Mohamad Parij, Wan Mohammad Taufik Wan Abdullah
Journal: Financial Risk and Management Reviews

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Abstract
The main intention of this paper is to examine the impact on firm’s performance once the directors are granted with the share options and share award. This study also intends to briefly identify the Shariah compliance impact towards the performance of firms that have granted the share options and share award. Earnings per share (EPS), Operating Cash Flow over Total Assets (OCFTA) and Tobin’s q used to examine seven hypotheses in this paper. The results exhibit share award presented better results in EPS and OCFTA. On the other hand the share options and the share award revealed significant relationship with Tobin’s q when Shariah compliance was included in the regression analysis model.
Contribution/ Originality
This study contributes in the existing literature on the share-based compensation as an important component in the directors’ compensation package and how it can boost the performance of the firms. Besides, this study contributes in the existing Islamic perspective literature by taking into consideration the implication of Shariah-compliance status. 
Economics » Financial Risk and Management Reviews » Month: 06-2015 Issue: 2

Kinetics and Mechanisms of Cadmium (Ii) Ion Sorption Using Carbonized and Modified Sorghum (Sorghum Bicolor) Hull of Two Pore Sizes (CMSH 150µm and 250µm)

Research Article
Author(s): C. Imaga, Abia A.A
Journal: International Journal of Chemical and Process Engineering Research

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Abstract
Aim of this study was to investigate the use of modified and carbonized Sorghum Hull of two different pore sizes (150µm and 250µm) in the removal of Cadmium (II) ion from aqueous solution. The effect of contact time (20, 40, 60, 80 and 100) minutes were investigated, reported and analysed accordingly. The maximum adsorption for 150µm and 250µm were at 80th and 40th minutes, respectively (54.895mg/l and 58.874mg/l). Kinetic modeling of the results of Cadmium (II) ion of both pore sizes were also investigated, reported and analysed. These results showed that Pseudo second order kinetic model best described the sorption process. The Mechanism of sorption showed that CMSH 150µm and 250µm, respectively were particle diffusion controlled. This will serve as parameters to consider in the design of treatment plants for heavy metal detoxification using biosorbents of different pore sizes.
Contribution/ Originality
This study is one of the very few studies which have investigated on Sorghum Hull and its use in the adsorption of Cadmium (II) ion from aqueous solution (synthetic wastewater). It documents the kinetics and mechanism of adsorption process; design pattern for wastewater treatment plant construction using a novel adsorbent.
Engineering » International Journal of Chemical and Process Engineering Research » Month: 04-2015 Issue: 4

Effect of Temperature and Drying Time on the Synthesis of Stable K2FeO4 By Wet Method

Research Article
Author(s): Abdellatif El Maghraoui, Abdelaziz Zerouale, Mustapha Ijjaali
Journal: International Journal of Chemistry and Materials Research

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Abstract
Fe (VI) as an oxidant has a higher oxidation potential than ozone, hydrogen peroxide, permanganate or chlorine.Demanding environmental regulations encourage the use of ferrate as a decontaminating agent of choice. Thus, the purpose of this work is to identify and optimize the time and drying temperature of stable to ambient K2FeO4 by wet means facilitating their storage and transport. Wet synthesis is performed by attacking ferric sulfate FeSO4, 7H2O by ClO- hypochlorite with a chlorometric degree of 50 ° F in a concentrated medium KOH, at a temperature of 55 ° C. The drying time is of the order of 12 hours at a temperature of 120 ° C. The obtained result was characterized by UV spectrophotometer by measuring the optical density at a wavelength of  507 nm.
Contribution/ Originality


Chemistry & Materials Sciences » International Journal of Chemistry and Materials Research » Month: 05-2015 Issue: 5

A Study of the Binding of Anionic Mordant Red7 in Two Different Cationic Solutions Using Absorption Spectroscopy

Research Article
Author(s): Abdelmeneim El-Dali, Ashraf El-Hashani, Khaled M. Elsherif, Sabrin Alsherkcy
Journal: International Journal of Chemistry and Materials Research

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Abstract
The interactions of anionic dye, Mordant Red7 with two different cationic ligands (ethanol amine and tallow amine) were studied in acidic aqueous solution using UV–VIS absorption spectroscopy. The dye interacts strongly with oppositely charged ligands. The results have shown that the maximum absorbance of the dye decreased gradually after addition of opposite charge ligand, and also shows the emergence a new absorption band. The new peak was attributed to the formation of dye aggregation by intermolecular forces such as hydrophobic forces attraction, Van der Waals forces and hydrogen bonds. The binding constant (Kc) values of the dye to cationic ligands have been determined by means of Benesi–Hildebrand equation. The magnitude of Kc is large for tallow amine 43.05 x 103mol-1 L compared to ethanol amine 1.245 mol-1 L. This is because; tallow amine able to self-assemble into micelles (surfactant) at a specific concentration called the critical micelle concentration (CMC), thereby, the dye binding to micelle of tallow amine surfactant. On the other hand “ethanol amine does not form micelles”. The standard free energy change ΔG◦ for ethanol amine and tallow amine for the complexation process have also been determined.
Contribution/ Originality
The interactions between dyes and ligands are an important in many industrial applications such as detergency, emulsion polymerization, enhanced oil recovery, drug delivery and textile dyeing and subjects of numerous investigations. The purpose is to define physical interactions and focusing on the influence of ligand structure on aggregation of dyes. However, until more recently, an understanding of the nature of molecular interactions between dyes in solution lacked much clarity. The main objective of this project was to study the effects of chemical structure and concentration of ligand (surfactant) on the solubilization and aggregation of dyes in aqueous solution. For this reason, the interactions of anionic Mordant Red7 with two different cationic solutions were investigated spectrophotometrically and optimization conditions of aggregations and calculate the binding constant and standard free energy.
Chemistry & Materials Sciences » International Journal of Chemistry and Materials Research » Month: 06-2015 Issue: 6