International Journal of Global Optimization and Its Application
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Conceptual Design of Ecotourism Products Proposal at Mangrove Forest in Ketam Island, Malaysia
Get PDFMangrove offers a unique and functional characteristic that proves to be beneficial to its surrounding ecosystem. It also benefited the local communities positively in the socio-economic growth via the increase in ecotourism product varieties. Ecotourism activities must not further deteriorate, but, be able to protect and preserve the mangrove ecosystem via a deliberate mangrove ecosystem management. In the effort to conserve mangrove ecosystem, increase public awareness and promote socio-economic growth, this study therefore seeks to highlight the existing ecotourism product (physical products, activities, facilities and services) at Ketam Island Mangrove Forest, Selangor, Malaysia and proposed ecotourism product suitable to feature mangrove forest. With sustainable development, a conceptual design is proposed for the future development of ecotourism research center and its urban enclave at the location, supplementing suitable ecotourism product to the existing product. A site survey of the location is conducted to observe the mangrove ecosystem. Further information is collected from supporting existing publications. Computer software such as AutoCAD and Adobe Photoshop are used to draw out the 2-Dimensional, 3-Dimensional, and render the proposed design to visual representations. Significantly, the supplementary ecotourism product conserves the mangrove ecosystem, promote socio-economic growth and benefit all stakeholders; visitors, local community
A Mathematical Model for Multi-Period Surgical Scheduling with Capacity Constraint
Get PDFThis study proposes a mathematical model for multi-period surgical scheduling problem with capacity constraint over a time horizon. The goal is to schedule a list of patients who must undergo various kinds of operations by different eligible hospitals. In particular, each operation must be performed in a particular time period and different operations of one patient can be performed by different eligible hospitals. In addition, each hospital has limited surgery capacity for each time period. The problem is formulated with a multi-objective model using the weighted sum approach of two objectives: minimization of makes pan and minimization of total least preference assignment score. The experiment is executed using the simulated data according to the real treatments of cleft lip and palate patients. The results show that the model yield the correct assignment and operation sequence respected to all constraints. Thus, this proposed mathematical model can be further used as smart decision tool in surgical scheduling in hospital network
Application of Simulation Technique for Bus Stops Arrangement
Get PDFThis study uses simulation to improve efficiency of The Chiang Mai Municipality bus no. 2 (Arcade - Chiang Mai airport route). The target is to achieve the travel time from the starting station to the destination station within 1 hour and 45 minutes. The content of the research will present guidelines for the improvement and design of the Chiang Mai Municipality bus service by using simulation software Arena. In order to use the data obtained from the simulation to analyze and improve the service process of the Chiang Mai Municipality bus to be more efficient. From the simulation by reduce the number of stations. Chiang Mai Municipality bus will be able to provide the service as targeted for only 1 hour 45 minutes and reduce travel time up to 13:46 minutes or accounting for 11.01%. In conclusion, Chiang Mai Municipality bus service has a long traveling time causing passengers to wait a long time. The results of simulation found that Chiang Mai Municipality should reduce the number of stations
Consumer Behavior in Adopting Application-Based Transportation Services
Get PDFWith the rapid development and use of information technology in various fields, who can say that information technology is the main pillar that provides added value to society in the development process towards a developed nation? Moreover, information technology has entered all fields or sectors, especially transportation. One transportation service that takes advantage of the speed of access to information is the JAKET application-based transportation. The urgency of this study is to determine the level of acceptance of consumer technology in adopting JAKET application-based transportation services using the UTAUT 2 model approach. The sample used in this study was 120 respondents who used the JAKET application. The data collection process will be carried out from January to February 2021. The data collection used a survey with 33 question constructs, summarized in eight manifest variables. This study uses Structural Equation Modeling with a variance-based or component-based approach with Partial Least Square. This study\u27s results indicate that performance expectancy, effort expectancy, hedonic motivation, and perceived risk significantly affect behavioral intention. Following that, there was no significant influence of social influence, facilitating conditions, or behavioral intention habits
The Multi-Period Surgical Scheduling with Capacity Constraint: A Mathematical Modelling Approach
Get PDFThis research proposes a mathematical model for multi-period surgical scheduling problem with capacity constraint over a particular time horizon. The goal is to schedule a list of patients who must undergo various kinds of operations by different eligible hospitals. In particular, each operation must be performed in a particular time period and different operations of one patient can be performed by different eligible hospitals. In addition, each hospital has limited surgery capacity for each time period. The problem is formulated with a multi-objective model using the weighted sum approach of two objectives: minimization of makespan and minimization of total least preference assignment score. The experiment is executed using the simulated data according to the real treatments of cleft lip and palate patients. The results show that the model yield the correct assignment and operation sequence respected to all constraints. Thus, this proposed mathematical model can be further used as smart decision tool in surgical scheduling in hospital network
Review of Conservation of Resources Theory in Job Demands and Resources Model
Get PDFThis paper provides background information about the underpinning theory of the model of job demands-resources model (JD-R model), which is the conservation of resources theory. The Conservation of resources (COR) theory became highly popular among researchers. Conservation of resources (COR) theory postulates the link between job demands-resources, personal resources, organizational commitment, work engagement, turnover intentions, and job performance. This paper discusses COR theory, which is the main theory that underpins the present research. This paper reviews the assumptions and development of the theory and presents an overview of important findings obtained with the theory and its association with JD-R model. The paper concludes with an agenda for future research and a brief discussion of the practical application of the theory in JD-R model
Awareness of Green Building in West Bank Palestine
Get PDFThis study evaluates the awareness of green buildings in the West Bank, Palestine, and the importance of applying the green building concept to the public. Green building practices are a significant role in attaining sustainability, particularly in the construction industry. This practice is constructed for minimizing impacts on the environment as well as decreasing building effects on occupants. The key issue is the establishment of a solid knowledge foundation for Palestine that will equip the public, professionals, development agencies and governments with accurate and relevant knowledge generated within the framework of the state’s social needs, its cultures, and its biophysical environment to guide their decisions and actions towards establishing a sustainable built environment. The hypothesis tested was that the implementation of green technology will be beneficial in terms of cost and benefit for the improvement of the environment in West Bank, Palestine. The validity and reliability of data were considered to increase the quality of the data. The results show that there is a positive significant relationship between awareness level and the efficiency of building green practices in West Bank, Palestine. Therefore, motivation and government support are crucial to increase the awareness level of the importance of green building development in West Bank, Palestine. The survey conducted revealed that although the fieldwork professionals are aware of the green building concept, the general public is not aware of this concept as there was only minor efforts are developed in implementing it. A lot more work is necessarily needed to enhance public awareness of the application of green building and further stimulate measures and strategies towards a sustainable built environment
Evaluating the Validity and Reliability of Authentic Learning Instruments using RASCH Model
Get PDFSocial science research with a quantitative approach should use the appropriate scale of measurement to interpret a variable correctly. There are two types of measurement scale that is category scale and numerical scale. Category scale is for nominal and ordinal data, while the numerical scale for an interval and ratio data. In mathematical analysis, numerical scale indicates the exact measurement and more precise definitions of certain variables. Category scale is only used to classify a variable. However, Likert scale which is used for ordinal data are often used as a measurement tool in social science research. Therefore, the Rasch model analysis that can change the nominal and ordinal data to interval and ratio data was used in this study. Here, it was used to evaluate the validity and reliability of authentic learning instrument at Malaysian Polytechnics. Validity of instrument was seen by unidimensional analysis through principal component analysis method. Reliability of instrument was seen by summary statistics, variable map and item fit table. The findings show that the authentic learning instrument at Malaysian Polytechnics has high validity and reliability
The Impact of Tourism on Economic Growth: Evidence from Aceh Province, Indonesia
Get PDFTourism is one of the sectors expected to provide employment, increase people\u27s income, and activate other production sectors in the regional economy. This study mainly focuses on determining the impact of tourism income, tourist visits, infrastructure, and labour on economic growth using panel data regression of 23 districts/cities in Aceh Province, Indonesia, year observation 2016-2020. Based on estimation results, all independent variables were significant and positive effects on Economic Growth. Furthermore, the panel data regression model that has been formed is found to be fit, which means that Tourism Income, Tourist Visits, Infrastructure, and Labour are considered capable of representing the factors that influence Economic Growth in Aceh Province. Based on these findings, it is hoped that the government will be able to formulate a strategic policy, especially in the tourism sector, that can accelerate and maintain economic growth in Aceh Province
How Do Good Corporate Governance and Financial Performance Affect the Value of State-Owned Enterprises?
Get PDFThis study examines the effect of good corporate governance and financial performance on the value of state-owned enterprises (SEOs). The population of this study was all companies listed on the Indonesia stock exchange, with a sample of 20 SEOs companies in 2015-2019. The independent variables in this study were Good Corporate Governance with the Independent Board of Commissaries and the Audit Committee and financial performance with the Return on Equity proxy. The dependent variable in this study was the value of SEOs with the price to book value proxy. Hypotheses were tested using SPSS 21.0 software, and data were analysed using multiple linear regression tests. This study found that the Independent Board of Commissaries had a negative and significant effect on the value of SEOs; Audit Committee had a positive and significant effect on the value of SEOs. On the other side, ROE has a negative and insignificant effect on the value of SEOs