Sustainability is getting preference now-a-days in most of the countries in the world. This implies industrial and other developments for economic growth, and of course civilization, but certainly not at the cost of environmental degradation. Environmental conservation is a must. One of the major components of industrial sectors is their electrical energy inputs through electrical substation. Numerous research addresses the issue of energy pollution, cantering on fossil fuel. A very few research can be found which address the issue of pollution generated from electrical energy. This research addresses this issue, with special attention to electrical substations. In the last two or three decades, several electrical equipment manufacturers have started producing this equipment in Bangladesh, which were previously import-oriented. This equipment use various types of oils, acids, zinc and other metals, which are all environmentally hazardous. Thus, any industrial company, buying such equipment from substation manufacturers, should consider green aspects. As such, now it is of prime importance to select green suppliers of substation equipment. Since selection of right or green supplier involves multi-criteria evaluation, Multi-criteria Decision Making (MCDM) technique is essential. Additionally, both qualitative and quantitative criteria require fuzzy analysis to make it more precise and realistic. This research addressed the issue of environmental pollution, its sources, nature and severity, and their mitigation through selecting green suppliers.

The present problem deals with the thermo-elastic interaction of a gold nano-beam resonator induced by ramp-type heating under the two temperature theory of generalized thermoelasticity. The governing equations are constructed in the context of two-temperature three-phase-lag model (2T3P) and two-temperature Lord-Shulman (2TLS) model of generalized thermoelasticity. Using the Laplace transform, the fundamental equations have been expressed in the form of a vector-matrix differential equation which is then solved by Eigen value approach and Mathematica software package has been used as a tool. The inversion of Laplace transforms are computed numerically using the method of Fourier series expansion technique. Numerical results for lateral vibration, temperature, displacement, stress, and the strain energy are presented graphically for Lord-Shulman model and also for three-phase lag model. A numerical instance of gold nano-beam in femtoseconds scale has been calculated to present the effect of the ramping time parameter on the entire studied field. The effect of two-temperature parameter is also discussed on the physical fields.

The volume of rural road construction projects has increased over the last decade in Bangladesh though these projects are experiencing failure in terms of time for completion. Therefore, this study focuses on nine risk factors specifically in case of Bangladesh. The objectives are to examine and quantify the contribution of supply chain risk factors on completion time of rural road projects and to assess the prioritization of iden-tified risks. An insignificant number of researches have been performed on the effect of supply chain risks on completion time of rural roads in Bangladesh. To the best of authors’ knowledge, the three factors such as, upper contract price, prolong rainy season and time of monitoring have not yet been used as independent variables in any re-search. A linear model has been drawn and the proposed model shows that upper contract price, delay of the site handover, delay of site materials mobilization, change of scope and prolong rainy season cause time overrun, whereas, time of monitoring, delay in payment and delay in submission of contract schedule did not have significant effect on time. These findings will help the government of Bangladesh take the necessary actions to complete the projects on time.

In facing business competition in the cement industry, PT Semen Baturaja (Persero) Tbk is making creative and innovative breakthroughs. Poor procurement planning, competence in the procurement of goods and services, hard skills and soft skills, ineffective coordination between divisions, low culture and work discipline, as well as ineffective education and training are the main causes of the ineffective implementation of the e-Procurement system in the company. Employee performance in the e-procurement division is a concern in this study. This study aims to determine the influence of competence, education, training, and employee placement partially and simultaneously on employee performance at PT. Semen Baturaja (Persero) Tbk. This study uses a quantitative approach with a confirmative survey method that is descriptive and uses verification. The population and sample of this study is all employees in e-procurement division, as it uses a census sampling technique, amounting to 105 respondents. The data is gathered using questionnaire, documentation, and observation method. Furthermore, the data is then processed using SPSS 24 application. The results of this study show that employee competence, education, training, and employee placement had positive effects on employee performance. The strategy to improve employee performance will be effective by first providing technical training to improve competence in the e-Procurement division, then rearranging the placement by paying more attention to the suitability of individual competencies, expertise, and abilities in carrying out the e-Procurement Standard Operating Procedure.

Facile conversion of structurally different epoxides to the corresponding B-chlorohydrins was carried out successfully with anhydrous ZnCl2 in CH3CN. The reactions were carried out within 10-50 min to give B-chlorohydrins with perfect regioselectivity and high yields (80-97%).

Preparing well educated accounting students for future, involve teaching using high techniques, will benefit all public and private organizations. Accounting educators and practitioners are pressured by the industries, globalization and the professions to generate graduates with accountancy skills that meet the changing needs. In this survey, a questionnaire was conducted and distributed randomly to ascertain the views of accounting academics and practitioners on the contents of governmental accounting courses and the personal skills and competencies of recent graduates. The results show that practitioners placed an emphasis on traditional accounting techniques, while academics placed an emphasis on contemporary techniques. Both groups were in agreement on some skills and characteristics required of recent graduates. The main finding is the existence of a real gap between education and practice of governmental accounting. The implications of the results are that academics cannot ignore the teaching of traditional governmental accounting techniques and may need to increase the coverage of the issues involved in implementing contemporary governmental accounting techniques.

The safety of civil aviation will be more secured if the errors in all the facets can be reduced. Like the other industrial sectors, human resource is one of the most complex and sensitive resources for the civil aviation. The error of human resources can cause fatal disasters. In these days, a good volume of researches have been conducted on the disaster of civil aviation. The researchers have identified the causes of the civil aviation disasters from various perspectives. They identified the areas where more concern is needed to reduce the disastrous impacts. This paper aims to find out the critical factors of human error in civil aviation in a developing country (Bangladesh) as it is accepted that human error is one of main causes of civil aviation disasters. The paper reviews the previous research to find out the critical factors conceptually. Fuzzy analytical hierarchy process (FAHP) has been used to find out the critical factors systematically. Analyses indicate that the concentration on precondition for unsafe acts (including sub-factors) is required to ensure the aviation safety.

With increasing economic instability coupled with climate change and the Covid-19 pandemic the subject of economic resilience in agripreneurship value chains in rural farming has gained prominence. Despite the constant engagements on the subject, there still is a missing piece on the determinants of economic resilience and sustainability for agripreneurship in tobacco value chains. The objective of this study was to characterize rural farming typologies which will assist in determining resilience and sustainability for tobacco value chains. The research adopted a pragmatic research approach, where quantitative results were triangulated with qualitative results to test the robustness of the research findings. A total of 250 questionnaires were administered to small scale tobacco farmers in Gokwe and interviews were held with selected 8 Agri-tex-officers. STATA version 12 was used to analyse quantitative data and thematic analysis using vignettes for qualitative data. The research findings showed a significant positive relationship between sustainable agripreneurship and economic resilience in tobacco farming in Gokwe district. The study recommends that the government prioritise the development of sustainable tobacco infrastructure throughout the value chain and training of tobacco farmers on resilient farming methods. This study offers theoretical contributions on how to achieve economic resilience and sustainable agripreneurship in tobacco value chains in Gokwe district.

Co-op advertising is an interactive relationship between manufacturer and retailer(s) supply chain and makes up the majority of marketing budget in many product lines for manufacturers and retailers. This paper considers pricing and co-op advertising decisions in two-stage supply chain and develops a monopolistic retailer and duopolistic retailer & apos; s model. In these models, the manufacturer and the retailers play the Nash, Manufacturer-Stackelberg and cooperative game to make optimal pricing and co-op advertising decisions. A bargaining model is utilized for determine the best pricing and co-op advertising scheme for achieving full coordination in the supply chain.

The article simulates the impact of the digital technologies’ development on economic growth, which makes it possible to find ways to improve the quality of various spheres of life and identify areas of the economy, the accelerated digitalization of which will ensure an increase in gross domestic product (GDP). The research used groupings of economic activities that directly influence the development of the digital economy. Using the data of regression models, the coefficients of GDP elasticity from the development of the studied sectors were calculated and used to forecast GDP under the development influence of the studied sectors while maintaining the existing trends. The dynamics of the e-commerce market development in Ukraine, the dynamics of production volumes of products (services) of the main types of economic activities in the field of digital transformation of the economy in Ukraine, the dynamics of financial results of enterprises in the information and telecommunications sector in Ukraine, the dynamics of capital investments in the field of information and communications of Ukraine, the dynamics of foreign investment in the development of the type of economic activity “information and telecommunications” in Ukraine, the dynamics of the development of the main areas of digitalization of the Ukrainian economy in 2010-2018 and the dynamics of GDP in actual prices were revealed. A correlation and regression analysis of the impact of the main indicators of the digital technologies sectors development on Ukraine's GDP is also carried out. The forecast extrapolation trend of production growth volumes of products and services in the information sector of Ukraine was built. A forecast of GDP growth in Ukraine has been constructed, taking into account the processes of digitalization of the economy in accordance with certain trends. The forecast dynamics of changes in GDP under the influence of the IT sector development until 2023 was also illustrated. It was found that Ukraine lags significantly behind most developed countries in terms of the level of industrial production development of information and communication technologies and equipment, Ukraine is completely import-dependent in this area. It has been proved that stimulating the development of information and communication technologies has significant prospects for activating digitalization processes in all spheres of the economy and society and increasing GDP.