Purpose Manufacturers and engineers need a practical and operational way to understand sustainable manufacturing and to apply it to their shop floors. The single index enables manufacturing industries to make decisions considering the continuous improvement to increase sustainability performance. The purpose of this paper is to develop a manufacturing sustainability index (MSI) based on lean and sustainability concepts using sustainable-value stream mapping. Design/methodology/approach The methodology of this research is linked to Delphi- analytical hierarchy process (AHP) qualitative assessment with sustainable-value stream mapping quantitative analysis for determining MSI. The Delphi method is used with relevant indicator selection, sustainable-value stream mapping is used to score the relevant indicator with efficiency approach and the AHP method is used to determine the indicator weight. To evaluate the applicability of this framework for assessing sustainability in the manufacturing process, a case study in Indonesian Wooden Furniture was developed. Findings The findings of this research is the framework for evaluating and assessing the sustainability performance of the manufacturing process. Although evaluation of the framework is limited to the furniture industry, there is a methodology potential to reproduce for the other sectors. Research limitations/implications Theoretically, this study has provided a single index to measure performance of the manufacturing sustainability comprehensively at factory level. However, the implementation of the developed model is too limited. More application in different sectors and different industrial sizes is needed. Originality/value The value of this research lies in the novelty of the single index in measuring manufacturing sustainability and the relevant indicators for the furniture industry in Indonesia. The selection of the indicators has involved practitioners in the furniture industry and encompassed economic, environmental and social dimensions. The visualization of indicators through sustainable-value stream mapping is proven to be more practical and helpful for industrialists.

Theoretically the adolescent psychological development is a transition period which is marked by changes in biological, psychological and social aspects. Empirically, the increasing trend of juvenile delinquency is caused by the inability of the early adolescents to be assertive so that their personality become weak and they can easily fall into negative things. This study aimed at determining the extent to which environment and mass media have the influence on assertive behaviour and juvenile delinquency trend in Junior High School in West Java Province. The respondents of this research were 458 students of Junior High Schools in West Java. Questionnaire was used to collect the data. Samples were chosen by using stratified random sampling technique. Data analysis employed Structural Equation Modelling (SEM) with two-stages testing: measurement model and structural model, using Analysis of Moment Structure (AMOS). The results of this study revealed that all hypothetical statements have significant effects. The findings showed that the increasing level of students’ assertive behaviour can decrease the tendency of juvenile delinquency in them. Keywords: assertive behaviour, parenting, mass media, juvenile delinquency trend

Penelitian ini bertujuan menghasilkan bahan ajar PPKn Berbasis Karakter dan Literasi Siswa kelas IX yang dirancang lebih menarik, melatih mandiri, kreatif dan inovasi, sesuai kebutuhan siswa serta mengembangkan kompetensi, karakter dan literasi siswa. Model pengembangan yang digunakan Dick, Carey & Carey (2001) yang disesuaikan dengan keperluan pengembangan. Teknik analisis ini digunakan untuk mengolah data yang diperoleh melalui lembar evaluasi dalam bentuk deskriptif persentase. Hasil validasi dari ahli desain pembelajaran mencapai 92.5%. Sedangkan dari ahli materi bahan ajar yang dikembangkan mencapai 89.3%. Hasil uji coba pada siswa, persentase kelayakan secara keseluruhan mencapai 83.66%. Sedangkan Review dari guru mencapai 78.41% serta respon melalui angket mendapatkan respon sangat baik. Dari data dan analisis yang telah dilakukan dapat disimpulkan bahwa produk pengembangan dapat digunakan sebagai bahan ajar pada mata pelajaran Pendidikan Pancasila dan Kewarganegaraan (PPKn) yang memiliki kualifikasi sangat baik, dan mengembangkan ranah kompetensi, karekater dan literasi siswa.

Purpose The study aims to examine the role of health-care supply chain management during the COVID-19 pandemic in a cross-section of 42 selected sub-Saharan African (SSA) countries. Design/methodology/approach The study used cross-sectional robust least square regression for parameter estimates. Findings The results confirmed the N-shaped relationship between the health-care logistics performance index (HLPI) and COVID-19 cases. It implies that initially HLPI increases along with an increase in COVID-19 cases. Later down, it decreases COVID-19 cases by providing continued access to medical devices and personal protective equipment. Again, it increases due to resuming economic activities across countries. Practical implications The continuing health-care supply chain is crucial to minimize COVID-19 cases. The international support from the developed world in providing health-care equipment, debt resettlement and resolving regional conflicts is deemed desirable to escape the SSA countries from the COVID-19 pandemic. Originality/value The importance of the health-care supply chain during the COVID-19 pandemic is evident in the forecasting estimates, which shows that from August 2021 to April 2022, increasing the health-care supply chain at their third-degree level would reduce coronavirus registered cases. The results conclude that SSA countries required more efforts to contain coronavirus cases by thrice increasing their health-care logistics supply chain.

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In this paper, we report the benchmarking results of Hyperledger, a Distributed Ledger, which is the derivation Blockchain Technology. Method to evaluate Hyperledger in a limited infrastructure is developed. Themeasured infrastructure consists of 8 nodes with a load of up to 20000 transactions/second. Hyperledger consistently runs all evaluation, namely, for 20,000 transactions, the run time 74.30s, latency 73.40ms latency, and 257 tps. The benchmarking of Hyperledger shows better than a database system in a high workload scenario. We found that the maximum size data volume in one transaction on the Hyperledger network is around ten (10) times of MySQL. Also, the time spent on processing a single transaction in the blockchain network is 80-200 times faster than MySQL. This initial analysis can provide an overview for practitioners in making decisions about the adoption of blockchain technology in their IT systems.

This paper presents the design of wideband strip helical antenna for 5G Application. The strip helical antenna is designed for 5G and wideband applications that provide a wide bandwidth and circular polarization. The helical antenna is planned on at 5.8 GHz frequency by using Teflon material. The new designed strip is printed on a substrate then rolled into a helix shape to achieve circular polarization without an impedance matching and that the proposed antenna can be used for potential applications in wideband wireless communication. A wideband bandwidth of 2.41 GHz with a resonant frequency at 5.8 GHz is achieved by the helical antenna on the Teflon substrate. The presented antenna on Teflon substrate has achieved a gain of 11.2 dB. The antenna design parameters and the simulated results are achieved using the commercial software CST. The proposed antenna can be used for various wireless applications such as Wideband, Ultra wideband, 5G and wireless Applications.

This study aims to map the metacognitive awareness profile of students. Respondents involved were 198 students (24% male and 76% female) who were spread in Grade X and XI Science. Respondents were selected using convenience sampling techniques at SMAN 2 Bantul in 2018/2019 Academic Year. Students' metacognitive awareness data were collected using the Jr. MAI developed by Kim et al. Students' metacognitive awareness data were analyzed descriptively and quantitatively. Results showed that female were more dominant having metacognitive awareness than male students. Overall, students already have good metacognitive awareness in knowledge and regulation aspects. Students' metacognitive knowledge were dominant distributed in Good (class X) and Very Good (class XI) category. While the Students' metacognitive regulations were dominant distributed in the Good category (class X and XI). The results of this study are expected to be used as a teacher's reference in designing effective teaching strategies to improve student academic achievement.