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Purpose: This paper aims to propose a new model called the stochastic green capacitated p-median problem with a simulation-based optimisation approach. An integer linear programming mathematical model is built considering the total emission produced by vehicles and the uncertain parameters including the travel cost for a vehicle to travel from a particular facility to a customer and the amount of CO2 emissions produced. We also develop a simulation-based optimisation algorithm for solving the problem. Design/methodology/approach: The authors proposed new algorithms to solve the problem. The proposed algorithm is a hybridisation of Monte Carlo simulation and a Variable Neighbourhood Search matheuristic. The proposed model and method are evaluated using instances that are available in the literature. Findings: Based on the results produced by the computational experiments, the developed approach can obtain interesting results. The obtained results display that the proposed method can solve the problems within a short computational time and the solutions produced have good quality (small deviations). Originality/value: To the best of our knowledge, there is no paper in the previous literature investigating the simulation-based optimisation for the stochastic green capacitated p-median problem. There are two main contributions in this paper. First, to build a new model for the capacitated p-median problem taking into account the environmental impact. Second, to design a simulation-based optimisation approach to solve the stochastic green capacitated p-median problem incorporating VNS-based matheuristic and Monte Carlo simulation.

Open innovation involves external parties of the organization in innovation activities within the organization, resulting in the flow of knowledge and information internally and externally (inbound and outbound). Given the advantages of having external support in the internal innovation process, organizations are starting to adopt the open innovation model to help them achieve and sustain innovation. The parties involved in open innovation are suppliers, consumers, competitors, and society. Such involvement will increase the organization’s ability to achieve better performance. This study aims to provide a more updated, comprehensive, and clearer picture of the importance of organizational readiness to innovate, especially through open innovation. This study also seeks to present a more comprehensive identification of the impact of open innovation on company performance by using a systematic literature study. The systematic literature review conducted in this study can serve as a basis for future research that discusses policy strategies to improve organizational performance through the implementation of open innovation. Based on a systematic literature review, 33 main articles were obtained in accordance with the research objectives including different types of open innovation manifestations and specific open innovation practices implemented by organizations.

Two organizations can share knowledge to determine the success of their collaboration. Effectiveness in sharing knowledge affect the organizational performance and trust between organizations. This study aims to identify the implementation of multi-agent simulations to increase confidence in sharing knowledge between organizations. A multi-agent simulation approach was used in this study. The research model was adopted from previous research. Several hypotheses and path coefficients had tested in simulation models. The results of this study showed that multi-agent simulation is suitable to be implemented as a problem-solving method for a complex problem such as knowledge sharing. Besides, this study found the role of individual factors such as likability and expertise on the success of sharing knowledge between organizations.

One of aspect that contributes to improving organizations performance is knowledge transfer effectiveness. On the other hand, knowledge transfer is a dynamic interaction between people, process, and environment so that activity related to knowledge transfer categorized as a complex and adaptive process. The use of agent-based modeling and simulation approach is very appropriate in modeling knowledge transfer due to its ability to deal with the dynamic, complex, and adaptive process. Moreover, the agent-based approach has the ability in describing the interaction between the social agent that possess particular behavior. The purposes of this study are to identify the factors that influence the success of knowledge transfer in the university laboratory. In addition, the results show that agent-based modeling and simulation approach can determine the best scenario that can increase the success of knowledge transfer based on grouping of colleagues.

This research is motivated by the negative impact of the rapid development of globalization which is the main cause of the decline in the sense of nationalism. The decline in the spirit and attitude of nationalism among the youth is currently getting higher. Youth who should have a sense of love and pride for their country, in fact, have an indifferent attitude that results in their laziness to participate in the flag ceremony, undisciplined, preferring foreign products, and ashamed to wear their own nation's cultural attributes such as the use of batik. This opinion caused various problems among students, namely during the flag ceremony there were still many students who were not disciplined, some did not participate in the flag ceremony at all, did not memorize the Indonesian national anthem, did not memorize Pancasila, did not follow the rules and regulations, and do not respect each other. This research uses a qualitative approach and case study research methods. Data collection techniques carried out in this study were interviews, observations, and documentation studies as well as data analysis techniques by means of data reduction, data presentation, conclusion drawing, and verification as well as data validity. The results of this study indicate that (a) The Rengasdengklok historical site is relevant to be used as a learning resource for Civics because it is full of struggle values that can be used to increase the students' spirit of nationalism. (b) The role of teachers in schools is quite good by coordinating with schools and accommodating students well. (c) The results from the use of historical sites have quite an impact as shown by changes in students' attitudes towards a better direction. (d) while in the process of utilization, there are obstacles and ways to overcome them. External and internal constraints can be resolved by coordination between all elements such as the principal, vice principal of the curriculum section, PPKn teachers, and students. [ABSTRACT FROM AUTHOR]

Abstrak. Pala merupakan salah satu tanaman rempah yang menghasilkan minyak atsiri. Penelitian ini bertujuan untuk mengetahui pengaruh lama penyulingan terhadap rendemen dan mutu minyak biji pala. Variasi perlakuan yang digunakan adalah lama penyulingan yaitu 0-3 jam, 3-6 jam, 6-9 jam, 9-12 jam, 12-15 jam, 15-18 jam, 18-21 jam, 21-24 jam, 24-27 jam, dan 27-30 jam. Analisis karakteristik yang dilakukan meliputi rendemen, bobot jenis, indeks bias dan kelarutan dalam alkohol. Hasil penelitian yang telah dilakukan didapat rendemen minyak pala yang bervariasi, tergantung dari lama penyulingan. Pada jam ke 3 menghasilkan rendemen yang lebih besar dibandingkan dengan jam yang lain, dimana rendemen minyak pala pada jam ke 3 didapat sebesar 5,58 % sedangkan rendemen yang paling rendah terdapat pada jam ke 30 dengan hasil sebesar 0.12%. Berdasarkan hasil perhitungan rendemen kumulatif yang didapat dari range waktu 0-3, 3-6, 6-9, 9-12, 12-15, 15-18, 18-21, 21-24, 24-27, dan 27-30 adalah sebesar 10, 48 %. Nilai bobot jenis minyak pala yang diperoleh dari hasil penyulingan pada jam ke 24 menunjukkan angka yang lebih tinggi dibandingkan hasil yang lainnya dengan nilai 0,936 dan tidak memenuhi standar SNI. Sedangkan yang paling rendah terdapat pada jam ke 3 dengan nilai 0.872 yang juga tidak sesuai dengan standar SNI. Penyulingan dengan nilai bobot jenis yang sesuai dengan standar SNI terdapat pada jam ke 6 dengan nilai 0,902. Nilai indeks bias yang tinggi didapatkan pada jam ke 12- 15, 18-21, 21-24 dan 24- 27 dengan nilai 1,496 dan memenuhi standar SNI sedangkan pada jam ke 3-6 diperoleh nilai indeks bias sebesar 1,436 dan tidak memenuhi standar SNI. Tingkat kelarutan dalam alkohol 90% minyak pala yang dihasilkan dari 6 jam sampai 30 jam adalah sama, yaitu jernih yang diuji dengan perbandingan 1:3 dan sudah sesuai standar SNI sedangkan pada ke 3 jam hasilnya adalah opalisensi yaitu tidak keruh dan tidak jernih. Effect of Old Distillation on Rendemen and Quality of Essential Oils on Nutmeg (Myristica fragrans Houtt) Abstract. Nutmeg is one of the herbs that produce essential oil. This study aims to determine the effect of distillation on rendemen and quality of nutmeg oil. The variation of treatment used was the distillation time of 0-3 hours, 3-6 hours, 6-9 hours, 9-12 hours, 12-15 hours, 15-18 hours, 18-21 hours, 21-24 hours, 24- 27 hours, and 27-30 hours. Characteristic analyzes performed include rendemen, species weight, refractive index and solubility in alcohol. The results of the research have been obtained the yield of various nutmeg oil, depending on the length of distillation. At third hours it produces a higher yield compared to the other hour, where the yield of nutmeg oil at third hourswas5.58%, while the lowest yield was at 30thhours with a yield of 0.12%. Based on the results of cumulative rendemen calculations obtained from the range of time 0-3, 3-6, 6-9, 9-12, 12-15, 15-18, 18-21, 21-24, 24-27, and 27-30 was 10, 48%. The weight value of nutmeg oil obtained from the distillation at 24 hours indicates a higher rate than the other results with a value of 0.936 and didn't meet the SNI standard. While the lowest was at third hours with a value of 0.872 which was also not in accordance with SNI standards. Distillation with value of weight of type according to SNI standard is at 6th hours with value 0,902. High refractive index values were obtained at 12 to 15, 18-21, 21-24 and 24-27 hours with a value of 1.496 and met the SNI standard while at 3-6 hours the refractive index value was 1.436 and did not meet the SNI standard. The solubility rate in 90% alcohol of nutmeg oil produced from 6th hours to 30th hours is the same, that was clear tested with ratio of 1: 3 and was accordance with SNI standard while in 3 hours the result is opalisensi that is not cloudy and not clear.