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Management Science Letters pp 675-680; https://doi.org/10.5267/j.msl.2020.9.039
Accounting pp 497-506; https://doi.org/10.5267/j.ac.2021.1.009
The aim of this paper was to investigate the effect of the gross domestic product (GDP) and population on the investment yield of sharia insurance in Indonesia. This research used a causal research design with Indonesian sharia insurance as the focus. The secondary data were sourced from the Financial Services Authority (OJK) of Indonesia in 2016–2017. The analysis was performed with Smart Partial Least Square (PLS) software and indicated that the GDP did not influence the investment yield; however, the population did influence the investment yield of sharia insurance in Indonesia. The implications of this study are expected to recommend to the Indonesia Financial Services Authority regarding the impact of the GDP and population on the investment yield in Indonesia. In addition, the implication provides support for the Indonesian monetary policy authorities to anticipate the monetary policy by the Fed, regarding dovish and hawkish sentiments, to encourage capital inflows to emerging countries due to the impact on the development of Sharia/Takaful insurance in Indonesia. A social implication is that the sharia insurance industry in Indonesia can develop if the public can enjoy convenience in applying for premiums and ease in receiving sharia insurance claims. The majority of Indonesia's population of Moslems requires an openness in the process. This study takes a sample of different sharia industry characteristics to compare sharia and conventional types of industry.
Accounting pp 513-524; https://doi.org/10.5267/j.ac.2021.1.007
The current study links the information contents of the three main financial statements in a balanced panel data model to empirically examine the effect of cash flows per share and capital structure on shareholder value. The results of the study are based on a sample of 270 firm-year observations from the Jordanian commercial banks and insurance companies that listed on Amman Stock Exchange (ASE) from 2011 to 2019. Based on the Fixed Effect Model (FEM) with Driscoll-Kraay standard errors, the empirical results show that cash flows from operating activities per share had a positive and significant relationship with shareholder value, whereas both the cash flows from investing and financing activities per share had negative but insignificant relationship with shareholders’ value. Results also show that capital structure had a negative but insignificant relationship with shareholder value. Finally, the results indicate that dividend per share had a positive and significant relationship with shareholder value. Accordingly, decision-makers should direct cash to efficient investment projects in order for cash outflows from investing activities to create value to shareholders and to generate positive cash flows from financing activities. Similarly, an appropriate capital structure should be selected to create value for shareholders.
Accounting pp 601-608; https://doi.org/10.5267/j.ac.2020.12.019
The profitability of the business organization is the relative measurement and explores the profit earning capacity. There are two concepts of measuring profitability, which are profitability based on revenue, and investments. Gross and net profitability are the means of expression of the profitability based on revenue while investment profitability can be measured based on owners’ investment and total investment or total assets. Secondary data from the websites of the energy sector companies are taken for the study and ratio analysis, rank correlation is applied to get the similarity or differences in the profitability and relational relationship of the energy sector companies of Saudi Arabia. The study reveals that there was a significant difference in the profitability of the energy sector companies. Possibly, internal and external factors of the business organizations govern the profitability. There is a perfect and positive relational correlation between revenue and profitability while a highly negative correlation exists between profitability and investments. This may be due to overcapitalization or underutilization of the resources. Enhancement of velocity of operational activity is necessary to enhance the operational level of energy sector companies of Saudi Arabia. There is a need to control the indirect manufacturing and administrative expenses in smaller organizations and further investment in the energy sector companies is not advisable.
Accounting pp 655-660; https://doi.org/10.5267/j.ac.2020.12.012
The research aims to identify the impact of tax revenues on the growth of the gross domestic product (GDP) in Jordan during the period 2000-2018. The research reaches a set of results, which is that the greater the value of tax revenues by one unit, the greater the value of the GDP in Jordan by 7.257 units during the same period. There is also a positive effect of tax revenues on the growth and increase of the GDP in Jordan, however, there is no common integration between tax revenues and the GDP in Jordan. Moreover, there is a correction from the short term to the long term and there is an effect of the long-term correction of the relationship between tax revenues and the GDP during the study period. The study recommends the need to work to facilitate the procedures for individuals to pay taxes through modern technological means, work to develop and simplify tax services and raise the level of transparency in tax dealings with all individuals, the need to make amendments to the tax law in order to match the living conditions of individuals and achieve the highest efficiency in collecting due taxes, increasing tax exemptions that are offered to foreign investment to encourage them for investments in all economic, commercial, service and industrial fields in Jordan, working to diversify sources of income for the Jordanian economy and not to rely entirely on tax revenues as a primary source of income.
Accounting pp 615-620; https://doi.org/10.5267/j.ac.2020.12.017
Malaysian Private Entity Reporting Standard (MPERS) serves as new reporting framework to private entities and significant milestone to the capital market. The qualification for first-time MPERS adoption is incremental and it is important to prepare in advance for private entities if they intend to move to the MPERS or MFRS framework in the near future. A common question that private entities may ask is how far-reaching or how reliable the current Private Entity Reporting Standards (PERS) Framework is comparable to the new MPERS or MFRS framework. The adoption of MPERS is retrospective. The purpose of the analysis is to analyze the implementation of MPERS on small medium enterprises (SMEs) and how they perceive the implementation. The study covers all sectors of the SME sector, namely services, manufacturing, agriculture, construction, mining and quarrying, and is subdivided into Micro, small and medium and in three categories. These sectors were selected based on the SMEs landscape of Malaysia following the issuance of MPERS on February 14, 2014. There were 55 of SMEs participated in this research by answering the questionnaire. The study evaluated using linear regression and the measures of research are based on the factors described in the literature review, influence the variables. Hence, the SMEs experiences have the potential to make respondent’s perception of MPERS also agreeable. The implications of the research highlighted that the implementation of the MPERS still at the infancy level as there are few challenges faced by the SMEs regards to the implementation. Therefore, the regulators and standard setter can identify the challenges and provide appropriate assistance to ensure the financial reports are fairly presented.
Accounting pp 701-708; https://doi.org/10.5267/j.ac.2020.12.006
The status process and the multiplicity occur in the economic environment in the Republic of Iraq within the organization of work for companies and change towards the best new types of special operations through accounting and administrative methods to reduce costs. The paper opted the decision on the use of outsourcing and defined comprehensive evaluation criteria for the effectiveness of outsourcing - the outsourcing factor (Fout), which takes into average values obtained for the estimates of relative parameters to be interpreted on the Harrington scale translated into a ten-point system. The authors rely data analyses of business processes based on a sample from one of the industrial companies operating in the Republic of Iraq, which is the State Company For Implementation (SCI), in the Republic of Iraq, in the demonstrated the need to transfer it to full outsourcing & partial outsourcing and actually execution. This has a positive impact on the company's main financial and economic indicators and increase their competitiveness in the market, which has been the focus of many research studies. The study itself brings a unique method in theory and practice, which can be used by other companies, to deduce the implications of business organization to decision makers who are seeking for the best types of new special operations, which contributes to raising its competitiveness in the market.
Accounting pp 573-580; https://doi.org/10.5267/j.ac.2021.1.001
This study aims to determine the ability of the audit quality provided by audit partners to be influenced by seasoned and unseasoned specialists using the Ordinary Least Square (OLS) regression method and discretionary loan loss provision (DLLP). This study shows that the audit quality provided by a specialist partner auditor is higher than the non-specialist. Furthermore, after classifying the specialist partner auditors as seasoned and unseasoned, the results showed that the audit quality provided by seasoned specialist partner auditors is higher than the non-specialist. While the audit quality provided by the unseasoned specialist partner auditor is almost the same as those provided by the non-specialist. This study contributes to literature on specialist auditors. The longer the audit partner is classified as a specialist, the higher the audit quality. Therefore, it can improve the quality of financial statements.
Accounting pp 683-690; https://doi.org/10.5267/j.ac.2020.12.008
The aim of this research is to analyze the impact of coffee industry on economic growth of Vietnam. This research has used historic data for coffee production, consumption, exports, and coffee stock for Vietnam, thus this research has followed a quantitative design. The data in this research has been collected from the time period ranging from 1990 to 2018. There are several techniques that were applied in E-views such as descriptive statistics, bounds test, and autoregressive distributed lag model. The results of ARDL model indicate that in the short run coffee industry has an influence on the economic growth in Vietnam. It can be stated that for the short-run the null hypothesis is rejected stating that domestic consumption, exportable consumption, gross opening stock, and total coffee production have impacts over the gross domestic product (GDP) of Vietnam. The results of Bounds test show there is a significant impact of coffee industry on the economic growth of Vietnam in the long run as well.
Accounting pp 525-534; https://doi.org/10.5267/j.ac.2021.1.006
Lesotho faces fiscal deficits due to high government expenditure as characterized by the huge wage bill regarded as one of the highest in the world (UNICEF, 2018). The aim of this research paper is to investigate the tax revenue impact as a share of Gross Domestic Product (GDP) on economic growth in Lesotho. This research is provoked by the theoretical postulations and empirical evidence that their relationship is positive up to a certain optimal level which is the point at which economic growth rate is maximized. The study used data from 1988 to 2017 to investigate the relationship between tax burden and economic growth in Lesotho by applying the log-linearized model of Scully’s tax optimization model transformed into an ARDL bounds testing framework. Granger causality test and error correction model was employed to investigate the long run relationship between tax burden and economic growth in Lesotho. The findings of study revealed a long-run relationship between economic growth rate and tax burden with a unidirectional causality running from economic growth to tax burden. Granger causality revealed no causal effect running from tax burden to economic growth in Lesotho despite expectation of significant causal effect following both theoretical and empirical literature from various studies. Error correction results further supported a co-integrating relationship running from economic growth to tax burden with 100 percent speed of adjustment in the short-run towards a long-run equilibrium level. An optimal tax burden could not be established as the variables of interest were negative and insignificant signifying the insignificance of tax policy in stimulating the economic performance.
Accounting pp 553-562; https://doi.org/10.5267/j.ac.2021.1.003
The financial performance of the banking sector globally can be seen on the capital markets of each country. One of the important sources of information in the investment business on the capital market is the financial reports that are provided by every company going public. The objectives of this study are (1) to determine the simultaneous and partial effect of liquidity factors, Debt Equity Ratio, company size on timeliness of financial reporting in the banking sector in Indonesia. (2) to determine what factors are dominant in the timeliness of financial reporting in the banking sector in Indonesia. This research uses secondary data with panel data analysis method. The results show the liquidity variable, Debt Equity Ratio and firm size positively influence on timeliness of financial reporting in the banking sector in Indonesia. Firm Size is the dominant factor that has a significant positive effect on the Timelines Financial Report of the banking sector in Indonesia. The findings of this research are that increasing liquidity, Debt Equity Ratio and Firm Size can increase the Timelines Financial Report of the banking sector in Indonesia. Firm Size as the dominant factor is the attraction and driving force for the Timelines Financial Report banking sector in Indonesia. The research can be used as a reference for future researchers on identifying efforts of the influence of Liquidity, Debt to Equity Ratio, Firm Size and Timelines Report.
Management Science Letters pp 1509-1520; https://doi.org/10.5267/j.msl.2020.12.022
This study analyzes the effect of servant leadership on job performance with, trust and knowledge sharing as mediating variables. The research is classified in the quantitative analysis used to test the significance between latent variables. The study sample includes 164 of the STIE Malangkucecwara postgraduate program alumni from 2010 to 2019. Data are collected through an online questionnaire and the SmartPls processes the results. The results show that job performance was directly affected by servant leadership. Trust and knowledge sharing are proven as variables that mediate the influence between servant leadership and job performance with the nature of full mediation. Serving leadership tends to increase employee trust in leaders and organizations and stimulates a culture of sharing knowledge to increase employee job performance. The results can be a basis for further studies in the field of management, especially those related to servant leadership, and as material for practical understanding for leaders in various areas of the organization.
Management Science Letters pp 1601-1606; https://doi.org/10.5267/j.msl.2020.12.012
The issue of pension funds is not only a financial matter, but also a human resource. Pension funds do not stand alone, but are assumed to be related to other human resource (HR) variables. Starting from this background, this study aims to examine the effect of the occupational pension scheme (OPS) and retirement intentions (RI) variables partially on employee productivity (EP) directly or through employee engagement (EE), the effect of OPS on RI, and the effect of OPS on EP through RI. Post-positivist is the research paradigm, with a quantitative research approach, with explanatory causal types and statistical studies. Dapenma-Pamsi is selected as the location of this research and we choose the Joint Pension Fund of municipal waterwork which are located in six provinces in Java Island. The sampling technique for this study was proportionate stratified random sampling, with a total sample of 500 active Dapenma-Pamsi participants in six provinces in Java. The research instrument was a questionnaire with a Likert scale of 1-7. The data analysis technique used SEM-AMOS. The results of the study are supported by ten research hypotheses. The novelty of this research is the integration of variables rooted in the discipline of financial management and variables from the discipline of human resource management. This research is also could help Indonesia Government foster the growth of Private Pension Fund Program in Indonesia.
Management Science Letters pp 1629-1638; https://doi.org/10.5267/j.msl.2020.12.009
The damaging effects of market globalization towards developing countries necessitate the exhibition of favorable attitudes towards purchase intention for local brand automobiles manufactured locally. With the application of moral foundation theory (MFT), a quantitative and cross-sectional study that involved 373 Proton potential consumers through a mall intercept survey in Malaysia was analyzed. The results show that Proton’s potential consumers had favorable attitudes towards purchase intention for Proton automobiles. Subsequent to a high mean score of collectivism and a moderate mean score of ethnocentrism, Proton potential consumers’ ethnocentric tendency offers a contradiction to extant literatures on consumer ethnocentrism in developing countries. Thus, our study posits that consumers from collectivistic societies are ethnocentric and further display favorable attitudes towards local products. Additionally, the predictive effects of consumer ethnocentrism and collectivism on attitudes towards purchase intention for local brand automobiles manufactured locally were ascertained. Our findings validated the applicability of MFT in explaining consumers’ attitudes towards local products. Other implications are also discussed.
Management Science Letters pp 1565-1572; https://doi.org/10.5267/j.msl.2020.12.016
This study examines the relationship of two important constructs (the belief and attitude constructs) with managers’ proclivity for using Social Dialogue – a tool for managing people at work (patronised by ILO) for maintaining peace and harmony in Bangladeshi textile industries. Managers’ personal belief and attitude within an organisation might affect the managerial responses towards social dialogue. The obtained data from the questionnaires are analysed through the 1st generation statistical packaged software (SPSS) and hypotheses are tested using Smart PLS software package well known as 2nd generation data analysis software. Analyses results strongly supported the relationship of the belief and attitude construct with managers’ proclivity for using social dialogue. The research surveyed three hundred fifty-one managers at 49 textile industries. The findings of this study suggest that the belief and attitude construct have a significant positive relationship with managers’ penchant for supporting social dialogue. The result of the paper provides managers with a credible argument to continually question their employee perceptions and objectively analyse whether their beliefs and attitudes impact their intention to use social dialogue. The selected sample should have been from strategic, tactical, and operational level of management that remains as a research limitation.
Management Science Letters pp 1573-1582; https://doi.org/10.5267/j.msl.2020.12.015
This research aimed at identifying the impact of psychological capital dimensions (self-efficacy, hope, optimism and resilience) on team performance at advertising agencies operating in Amman city. Moreover, the study examines the moderating role of leadership behavior on the relationship between the psychological capital and team performance. The researchers rely on descriptive and analytical approach, where the research population consists of all employees working in thirteen advertising agencies operating in Amman city. Convenience sampling technique was applied to distribute (250) questionnaires on the research sample. To analyze the research data; the researchers used a set of statistical methods including Cronbach's alpha along with a normality test, standard deviation, exploratory factor analysis, confirmatory factor analysis, multiple regression, interactive hierarchical regression and process procedures methods using SPSS-V20 and AMOS-V23. The results indicate that there was a statistically impact of psychological capital dimensions (self-efficacy, hope, optimism and resilience) on team performance in advertising agencies operating in Amman city. There was also a significant and role for leadership behavior as moderating variable between psychological capital dimensions and team performance.
Management Science Letters pp 1699-1706; https://doi.org/10.5267/j.msl.2020.12.001
High convergence level of strategic alignment between business and information technology helps companies enhance operational excellence. This research aims to identify strategic alignment maturity criteria level and their impacts on operational excellence in Jordanian industrial companies. The population of the study consists of all managers at top and middle management and a purposive sample is used to answer questionnaire items. In this survey, 288 valid responses are collected for analysis using SPSS (20) and smart PLS "V. 3". The study reveals that there is a significantly positive impact of strategic alignment maturity criteria (communication, competency-value Measurement, governance, partnership, scope & architecture and skills) on operational excellence. The most maturity criteria have a mid-level of maturity except scope & architecture and competency-value measurement criteria which maintain a low level. Thus, the study concluded that the researched companies have to recognize the business value of information technology (IT) investment and harmonizing IT architecture with business structure.
Management Science Letters pp 1521-1526; https://doi.org/10.5267/j.msl.2020.12.021
This study aimed to determine strategic agility impact on employees’ performance in commercial banks in Jordan. A self-administrated questionnaire was developed according to research objective and hypotheses. The research population consisted of all managerial employees in Jordanian commercial banks. A random sample was selected consisting of 250 staff members who have senior administrative and supervisory positions in the commercial banks. Statistical techniques were used to test the research hypotheses. The research concluded a set of outcomes, the most important is strategic agility with its dimensions have an impact on employee performance in the commercial banks in Jordan. The research also concluded that strategic agility dimensions (strategic sensitivity, core capabilities, clarity of vision, strategic goals information technology selection, and share responsibility) influence on employee's performance in commercial banks in Jordan. The study recommended that commercial banks in Jordan have to adopt strategic agility approach to improve their employee's performance. The commercial banks must exert their best efforts to rapidly adapt to surrounding environmental variables. Commercial banks have to pay attention to human capital, which plays a major role in achieving good performance.
Management Science Letters pp 1707-1714; https://doi.org/10.5267/j.msl.2020.11.034
The purpose of this paper is to analyze the effects of firm value on hedging for exchange rates, interest rates and commodity price risks using derivative instruments as well as examining different types of derivative instruments, including forward contract, future contract, option contract, and swap contract, used as hedging instruments to assess their various effects on firm value. The proxy used for the firm value variable is Tobin’s Q, and the ordinary least squares regression is employed for the research method. The study used 348 records from non-financial companies listed on the Indonesia Stock Exchange over the period 2015–2018. There are different results. First of all, the use of hedging for exchange rate risk with derivative instruments has a positive and significant effect on firm value. Secondly, the use of hedging for interest rate risk with derivative instruments has a negative but not significant effect on firm value. In addition, the use of hedging for commodity price risk with derivative instruments has a positive but not significant effect on firm value. Moreover, the effects from hedging using derivative contracts in general on firm value does not give results that are different from the use of hedging risk for exchange rates, interest rates and commodity prices with derivative instruments.
Published: 1 January 2021
international journal of industrial engineering computations pp 191-204; https://doi.org/10.5267/j.ijiec.2020.11.003
The vehicle routing problem combined with loading of goods, considering the reduction of fuel consumption, aims at finding the set of routes that will serve the demands of the customers, arguing that the fuel consumption is directly related to the weight of the load in the paths that compose the routes. This study integrates the Fuel Consumption Heterogeneous Vehicle Routing Problem with Two-Dimensional Loading Constraints (2L-FHFVRP). To reduce fuel consumption taking the associated environmental impact into account is a classical VRP variant that has gained increasing attention in the last decade. The objective of this problem is to design the delivery routes to satisfy the customers’ demands with the lowest possible fuel consumption, which depends on the distances of the paths, the assigned vehicles, the loading/unloading pattern and the load weight. In the vehicle routing problem literature, the approximate algorithms have had great success, especially the evolutionary ones, which appear in previous works with quite a sophisticated structure, obtaining excellent results, but that are difficult to implement and adapt to other variants such as the one proposed here. In this study, we present a specialized genetic algorithm to solve the design of routes, keeping its main characteristic: the easy implementation. By contrast, the loading of goods restriction is validated by means of a GRASP algorithm, which has been widely employed for solving packing problems. With a view of confirming the performance of the proposed methodology, we provide a computational study that uses all the available benchmark instances, allowing to illustrate the savings achieved in fuel consumption. In addition, the methodology suggested can be adapted to the version of solely minimizing the total distance traveled for serving the customers (without the fuel consumption) and it is compared to the best works presented in the literature. The computational results show that the methodology manages to be adequately adapted to this version and it is capable of finding improved solutions for some benchmark instances. As for future work, we propose to adjust the methodology to consider the three-dimensional loading problem so that it adapts to more real-life conditions of the industry.
Published: 1 January 2021
international journal of industrial engineering computations pp 159-176; https://doi.org/10.5267/j.ijiec.2020.12.002
A new case of joint location and scheduling (ScheLoc) problem is considered. It deals with selecting a non-fixed number of locations for identical parallel executors (machines) from a given set of available sites. Simultaneously, a schedule for a set of tasks is sought. For every task, it comprises an executor carrying-out the task and the moment of time when the performance of the task is started. The locations for executors and the schedule are evaluated by two criteria: the sum of task completion times and investment costs incurred when locations for executors are selected and launched. It is justified that the joint optimization problem is strongly NP-hard. In consequence, a heuristic algorithm Alg_BC is proposed, which uses the general scheme of NSGA II provided for the multi-criteria optimization. The performance of Alg_BC is evaluated for small instances by exact solutions determined by the Matlab solver. The sensitivity analysis for bigger instances is also provided, which among others, allows examining the influence of both component criteria on results generated by the evaluated algorithm. A case study dealing with the evacuation of citizen groups from danger zones is provided as an example of the investigated bi-criteria ScheLoc problem. The usefulness of Alg_BC is confirmed as well.
Published: 1 January 2021
international journal of industrial engineering computations pp 143-158; https://doi.org/10.5267/j.ijiec.2021.1.001
Production planners today must simultaneously face with the time and quality demands of various goods externally and meet limited capacity internally. This study presents a two-stage delayed- differentiation multiproduct model that considers the outsourcing options for common parts, overtime strategy for end products, and quality reassurance to assist in making fabrication runtime decisions that are cost-effective. Stage one produces all necessary common intermediate components for end products. To reduce stage one’s utilization/uptime, this study adopts a partial outsourcing option. Stage two uses an overtime strategy to fabricate end products that further shorten the uptime. The production processes in both phases are assumed to be imperfect. This study employs the reworking/scrapping of random faulty items to reassure product quality. The researchers build a model to depict the proposed problem’s characteristics and used the mathematical modeling, analysis, and optimization approach to determine the best rotation cycle length that minimizes the system’s expenses. Further, in this study, the researchers provide sensitivity analyses and a numerical illustration, which validate the result’s applicability and exhibit its capability. This result contributes to practical multiproduct-fabrication by (1) deriving the optimal manufacturing policy for a delayed-differentiation multiproduct system with dual uptime reduction policies and quality reassurance; and (2) offering a decisional model that allows production planners to explore the collective/separate effect of a quality-ensured and dual uptime reduction strategy on a problem’s operating policy and crucial system performance indicators, which assists in cost-effective decision-making.
Engineering Solid Mechanics pp 137-152; https://doi.org/10.5267/j.esm.2020.12.005
Despite its well-reported application in a few welding processes, the use of reinforcing powders in weld joints to improve weld integrity has not garnered ample research attention for Gas Metal Arc Welding (GMAW) process. In this study, the adoption of Titanium alloy powders as metallic reinforcement for mild steel butt welds was investigated. By adopting Taguchi’s L4 orthogonal array, process optimisation for titanium-reinforced mild steel butt welds were first carried out. In the second phase of welding, the optimum parameters were used to create and compare two sets of weldments; one set was reinforced with titanium alloy powder and the other set left unreinforced. It was observed that in the Weld Metal (WM) region, the titanium-reinforced samples had higher micro-hardness values than their unreinforced counterparts with an average of 285.62 HV and 211.6 HV respectively. However, there was no substantial improvement in the ultimate tensile strength of the mild steel butt welds due to titanium powder reinforcements. Interestingly, the formation of acicular ferrite microstructure was more prevalent in the titanium-reinforced weldments and this was attributed to the presence of titanium inclusions in the weld metal. This prevalence of acicular ferrite suggests improved toughness properties in the weld joint region. While the higher hardness values in the Weld Metal of the reinforced sample indicates improved wear resistance.
Engineering Solid Mechanics pp 161-176; https://doi.org/10.5267/j.esm.2020.12.003
The study of the stress state and power parameters when pulling workpieces in a special die with an inclined working surface at various shapes of the plastic deformation zone and geometric parameters of the special die was conducted. The distinctive feature of the proposed special die and the metal treatment process in the working channel of this die was described. The theoretical provisions and assumptions from the fundamental theory of plasticity and metal forming were used. The influence of the intensity of shear deformations on the stress state and force at the angles of inclination of the working surface of the die within 45–20°, the value of the ratio of the diameter of the workpiece to the length of the inclined surface d/z=1.5–2.0 was investigated. The optimal d/z ratio was determined by the method to a rigid punch indenting a rigid-plastic half-space, as well as by the method of strain energy. The field of slip lines and hodographs of velocities for various shapes of the deformation zone and geometric parameters of a special die were constructed. Based on the constructed slip line fields and velocity hodographs, the mean stress and stress components at the nodal points of the slip line field with the compilation of the equilibrium equations for all forces applied to the plastic zone were calculated. The study of the influence of contact friction between the working surface of the die channel and the workpiece on the stress state and power parameters during pulling was carried out. It was revealed that the optimal ratio d/z=1.5 and the optimal angle of inclination of the working channel of the die α=20°. It was found that for these parameters in the zone of plastic deformation, mainly significant compressive stresses act, which favorably affect the obtaining of a homogeneous and refined microstructure, and also exclude the appearance of anisotropy due to the implementation of maximum shear deformations in the workpiece.
Engineering Solid Mechanics pp 221-238; https://doi.org/10.5267/j.esm.2020.12.001
Martins Nogueira, Vinícius Torres Pinto, Luiz Alberto Oliveira Rocha, Elizaldo Domingues dos Santos and Liércio André Isoldi Right click to download the paper PDF (550K) This study applied the Constructal Design Method (CDM) associated with the Finite Element Method (FEM) through computational models to perform a geometric analysis on rectangular stiffened plates of steel subjected to a uniform transverse loading, in order to minimize its maximum and central out-of-plane deflections. Considering a non-stiffened plate as reference and maintaining the total volume of steel constant, a portion of material volume deducted from its thickness was transformed into stiffeners through the ϕ parameter, which represents the ratio between the material volume of the stiffeners and the reference plate. Adopting ϕ = 0.30, 27 geometric arrangements of stiffened plates were established, being 9 arrangements for each 3 different stiffeners' thicknesses adopted: ts = 6.35 mm, ts = 12.70 mm and ts = 25.40 mm. For each ts value, the number of longitudinal (Nls) and transverse (Nts) stiffeners were varied from 2 to 4. Thus, in each plate arrangement configured, the influence of the ratio between the height of the transverse and longitudinal stiffeners (hts/hls) was analyzed, taking into account the values 0.50; 0.75; 1.00; 1.25; 1.50; 1.75 and 2.00, regarding to the maximum and central deflections. The results have shown that transforming a portion of steel from a non-stiffened reference plate into stiffeners can reduce the maximum and central deflections by more than 90%. Moreover, it was observed that to reduce the deflections it is more effective consider hts > hls, once the ratio hts/hls = 2.00 was the one that led to the better mechanical behavior among the analyzed cases.
Accounting pp 289-294; https://doi.org/10.5267/j.ac.2020.12.002
The choice of capital structure has greatly contributed to the success of the firms in general and energy in particular. This study uses a sample data set of 250 energy firms over the period 2010-2019, and by using generalized least square (GLS) method to perform a survey. The main factors in this study include profitability, firm age, state shareholding and depreciation tax shield, etc. The study found that except firm growth, all factors including firm performance, age of firm, size of firm, asset structure, short-term solvency, and depreciation have significantly affected firm’s capital structure choice in the case of energy industry in a developing country. Furthermore, a positive effect was also found for size of firm and asset structure while a negative effect was detected for other factors such as firm performance, asset structure, firm age, short-term solvency, and depreciation. Through this research, we also conclude that the theory of pecking order, and the theory of representative cost are known as the basis for financial managers to build sound capital structures for businesses.
Accounting pp 441-450; https://doi.org/10.5267/j.ac.2020.11.007
This study aims to learn the effect of the Total Quality Management dimensions, Top Management Support, Customer Focus, Process Management, Employees Participation, Employees' Empowerment, and Continuous Improvement, on financial performance by moderating organizational culture. The study population includes nine transport companies listed on the Amman Stock Exchange until the end of 2019. Alia Company and Royal Jordanian Airlines were excluded since its financial data formed extreme values when compared with the values of the rest of the companies. The study uses Multiple Linear Regression to test the hypotheses. The study found a statistically significant effect at the level of significance (α < 0.05) for both top management support, customer focus, employees’ participation and empowerment, by moderating the organizational culture on financial performance measured by return on asset for the Jordanian transport companies listed on the Amman Stock Exchange. In light of the statistical results, the study presented several recommendations, the most important of which was to increase the top management interest in cultivating a profound organizational culture towards learning, development, mastering performance and improving the quality of its services to attract customers, and distinguish the organization from other organizations, in a way that reflects positively on developing its financial performance.
Current Chemistry Letters pp 119-138; https://doi.org/10.5267/j.ccl.2020.11.002
Past researches on 4-thiazolidinone nucleus have revealed the prominent potential of derivatives containing this nucleus to be developed as a potent therapeutic agent. Because of these biological activities, their structure-activity relationship has created an interest for medicinal chemists leading to the discovery of a number of lead molecules. This review highlights the routes for its synthesis and summarizes the past and recent studies on its biological activities to guide the medicinal chemists working on this nucleus in the development of clinically viable drugs.
Current Chemistry Letters pp 81-88; https://doi.org/10.5267/j.ccl.2020.9.001
Based on paralyzed and death time, zinc oxide (ZnO) nanoparticles (NPs) were preliminarily investigated for possible biological effectiveness of anthelmintic activity on Pheretima Posthuma. After synthesizing ZnO NPs by low-temperature precipitation method with slight modification, size, morphology, and shape evaluation of these nanoparticles were characterized by scanning electron microscopy and annealing temperature in the range 400-700C. In this anthelmintic assay, the paralyzed time (PT) was gradually shorter with the increase of the sample concentration, for instance, when high concentration (40mg/ml) sample was applied on adult worms the paralyzed time was 35.6 minutes only. The death time (DT) was 450 and 80 minutes when the sample concentration was 20 and 40 mg/ml respectively. These results were compared with albendazole as a reference showed PT and DT 378.6 and 402.3 minutes respectively, and showed maximum dose-dependent anthelmintic activity. Finally, at higher concentration paralytic effect (PE) was showed much earlier and subsequently, it is important to note that the time taken for death observation was shorter.
Current Chemistry Letters pp 67-80; https://doi.org/10.5267/j.ccl.2020.8.001
The corrosion inhibition efficiency of the Schiff base N,N’-(5,5-dimethylcyclohexane-1,3-diylidene)dianiline (DmChDa) on mild steel in 1M HCl and 0.5M H2SO4 was evaluated using gravimetric, electrochemical impedance spectroscopy, potentiodynamic polarization and electrochemical noise measurement. Experimental results established that DmChDa possess relatively high corrosion inhibition capacity. Langmuir and El-Awady adsorption isotherms were obeyed by the Schiff base in 1M HCl and 0.5M H2SO4 respectively. SEM analysis showed that DmChDa was adsorbed on the steel surface during corrosion inhibition. The variation of metal dissolution with temperature was also examined using gravimetric study.
Management Science Letters pp 31-40; https://doi.org/10.5267/j.msl.2020.8.033
Management Science Letters pp 57-66; https://doi.org/10.5267/j.msl.2020.8.030
Management Science Letters pp 253-260; https://doi.org/10.5267/j.msl.2020.8.008
Management Science Letters pp 291-296; https://doi.org/10.5267/j.msl.2020.8.004
Management Science Letters pp 117-128; https://doi.org/10.5267/j.msl.2020.8.023
Management Science Letters pp 41-48; https://doi.org/10.5267/j.msl.2020.8.032
Management Science Letters pp 67-76; https://doi.org/10.5267/j.msl.2020.8.029
Management Science Letters pp 165-170; https://doi.org/10.5267/j.msl.2020.8.019
Management Science Letters pp 297-304; https://doi.org/10.5267/j.msl.2020.8.003
Management Science Letters pp 139-154; https://doi.org/10.5267/j.msl.2020.8.021
Current Chemistry Letters pp 17-32; https://doi.org/10.5267/j.ccl.2020.7.001
Current Chemistry Letters pp 9-16; https://doi.org/10.5267/j.ccl.2020.04.003
Accounting pp 269-280; https://doi.org/10.5267/j.ac.2020.12.004
This study aims to analyze the effect of budget participation on the performance of the government apparatus of Palu City through budgetary slack with Culture kaili “Nosarara Nosabatutu” as moderating. This research was conducted in the regional apparatus organization of the Palu City Government in 41 regional work unit. Data were analyzed using Structural Equation Modeling with WARP PLS 7.0. The results show that budget participation has a positive effect on the performance of government officials, budget participation has a negative effect on budgetary slack and negative budgetary slack on the performance of the government apparatus. The results of this study also indicate that budgetary slack was a partial mediator between the effect of budget participation on the performance of local government officials. The Kaili culture variable “Nosarara Nosabatutu” cannot be proven as a moderator.
Accounting pp 323-330; https://doi.org/10.5267/j.ac.2020.11.021
The presence of small and medium-sized enterprises (SMEs) in Indonesia will contribute to the movement of the Indonesian economy, so its growth is an essential part that must be considered by the government. The goal of this study was to explore the role of innovative capabilities in improving the performance of Indonesian SMEs. A variable approach to social capital, entrepreneurial leadership, innovation ability and SME efficiency was used in this research. The research included a sample of 352 small and medium-sized enterprises in Pekanbaru, Indonesia, consisting of 19 medium-sized enterprises and 333 small enterprises out of a total population of 2887 small and medium-sized enterprises (the sampling methodology used was chance sampling and simple random sampling methods). The findings show that social capital does not explicitly have a substantial impact on the business performance of SMEs in Pekanbaru, but if it is mediated by creative capacities, social capital indirectly plays a role in improving the performance of SMEs. Entrepreneurial leadership has a big influence on SMEs.
Accounting pp 295-298; https://doi.org/10.5267/j.ac.2020.12.001
Altman Z score is an effective tool for measuring a company's financial strength and the possibility of bankruptcy. In this study, the Z score formula was utilized to measure the Indian automobile industry's financial soundness. The financial data of ten automobile companies listed in the National Stoke Exchange (NSE) was taken to analyze both original and emerging market formulae of the Altman Z score. Results suggest that companies of the industry listed in the NSE are financially sound. The study concluded that the Indian automobile industry is sound and robust, and the automobile companies are not prone to financial distress or bankruptcy in the near future.
Management Science Letters pp 909-916; https://doi.org/10.5267/j.msl.2020.10.007
This study aims to validate the dimensions of sharia experience quality and to determine the effect of sharia experience quality on customer loyalty by customer satisfaction as mediation variable. The sample technique of this study was a purposive sampling of 150 respondents who conducted financing at Islamic banks. SEM-PLS is used to test hypotheses. The results of the second order evaluation show that integration quality, physical environment quality, outcome quality, compliance sharia knowledge, and responsive religious experience had strong effects on sharia experience quality. Sharia experience quality had a significant effect on customer loyalty and customer satisfaction as a partial mediation of sharia experience quality on customer loyalty.
Management Science Letters pp 763-772; https://doi.org/10.5267/j.msl.2020.10.030
This paper aims to examine empirically the mediation role of customer satisfaction between service quality, customer perceived value, corporate social responsibility, and brand loyalty at Lebanese private universities. A survey was administered with 378 respondents. A judgmental sample of university students were selected. The framework was tested through structural equation modeling (SEM). The findings indicate that service quality and perceived value influence customer satisfaction while satisfaction fully mediates the relationship between perceived value and brand loyalty. Additionally, corporate social responsibility showed insignificant relationship with customer satisfaction and brand loyalty. This study proposed that marketers should focus on service quality, customer perceived value and customer satisfaction for increasing brand loyalty in adopting their strategies at Lebanese private universities.
Management Science Letters pp 1003-1012; https://doi.org/10.5267/j.msl.2020.9.042
Strategists have unique skills and abilities to connect the past and the present in order to predict what might happen in the future. The current study is the culmination of a number of research ideas in the field of Strategic Thinking (ST), Strategic Planning (SP) and Strategic Innovation (SI) in relation of Human Capital (HC). The survey method was used to collect data from 235 SMEs in the manufacturing industry of Yemen. Results indicate that ST, SP and SI have a significant effect on HC. The mediating effects of HC on the relationship between ST, SP and SI and SMEs’ performance were also examined. Results indicate that HC mediates the relationship between ST, SP and SI and firm performance. The findings of this study offer important insights for managers of SMEs, researchers and policymakers to further understand the effects of ST, SP SI, HC and SMEs’ performance. SMEs should also be encouraged to develop their ST, SP, SI and HC to improve their performance. Finally, this study serves not only to clarify the mechanism between HC and SMEs’ performance, but also to generalize the ST, SP and SI results in the Yemen and Middle East context.
Management Science Letters pp 813-822; https://doi.org/10.5267/j.msl.2020.10.022
The purpose of this study is to empirically test the impact of employee empowerment on organizational commitment through the mediating role of job satisfaction. The non-probability random sampling technique and time lag was used to collect data from 307 employees working at four and five Stars Hotels in two cities Rawalpindi, Islamabad of Pakistan. Smart Partial least squares-structural equation modeling (Smart PLS SEM v.3.2.8) was used to test the hypotheses. The result indicates that employee empowerment has a significant and positive impact on organizational commitment. Also, job satisfaction is considered as a potential mediator between employee empowerment and organizational commitment. Furthermore, to sup-port the results current study used the social exchange theory. Finally, some theoretical and practical contributions to employee empowerment and organizational commitment literature, and research limitations and future directions are presented.
Management Science Letters pp 773-782; https://doi.org/10.5267/j.msl.2020.10.029
In a diverse and modern organization with high extent of competitiveness within the market, maintaining high performance is of necessity. Talent management practices, when implied and used properly can significantly contribute to an organizations’ degree of overall performance as it has been noted throughout the literature. Employees and individuals seeking professional careers are required to cope with fast-changing environments of their workplaces. The need to constantly improve oneself is a dire one. Current research paper analyzes mediation effect of organizational commitment on the relationship between proactive personality and talent management practices from employee perspective of university academic and administrative staff. Mediation regression analysis (PROCESS) has been used to analyze the gathered data from universities located in North Cyprus, and the accumulated results show a full mediation effect from organizational commitment on the aforementioned relationship. The study contributes to the literature through expansion of proposed model in context of talent management and proactive personality as well as analytical method alongside context of academia. Furthermore, this study provides tangible implications, which can be beneficial for university decision-makers.