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"Penelitian ini merupakan adaptasi dari penelitian yang sebelumnya pernah dilakukan di Tiongkok. Penelitian ini bertujuan untuk mengetahui pengaruh Confirmation, Effort Expectance, Performance Expectancy, Perceived Task-Technology Fit, Satisfaction, Social Influence dan Trust terhadap Continuance Intention selama periode pandemi COVID-19 studi pada Kulina sebagai aplikasi pesan-antar makanan yang baru beroperasi di Indonesia. Data dikumpulkan melalui self-administered questionnaire kepada responden yang berdomisili di Jakarta, Bogor, Depok, Tangerang, dan Bekasi yang pernah menggunakan aplikasi Kulina untuk kebutuhan pesan-antar makanan. Peneliti menggunakan Structural Equation Modelling (SEM) untuk menganalisis pengaruh dari berbagai variabel yang ada terhadap Continuance Intention pada sebuah aplikasi pesan-antar makanan. Hasil dari penelitian ini adalah Trust berpengaruh secara positif dan signifikan terhadap Satisfaction. Hasil penelitian ini dapat dijadikan referensi oleh perusahaan aplikasi pesan-antar makanan di Indonesia untuk tahu faktor-faktor apa saja yang harus dikembangkan untuk semakin meningkatkan Continuance Intention di kalangan pengguna.......This research is an adaptation of research previously carried out in China. This study aims to determine the effect of Confirmation, Effort Expectance, Performance Expectancy, Perceived Task-Technology Fit, Satisfaction, Social Influence and Trust toward Continuance Intention during COVID-19 pandemic period study on Kulina as a new food delivery app operated in Indonesia. Data was collected through a self-administered questionnaire to respondents who live in Jakarta, Bogor, Depok, Tangerang, and Bekasi who had used Kulina app for food delivery needs. Researcher used Structural Equation Modelling (SEM) to analyze the effect of the various variables toward Continuance Intention on Food Delivery Apps. The results of this study are Trust positively and significantly influence Satisfaction. The results of this study can be used as a reference for food delivery app companies in Indonesia to know what factors should be developed to increase Continuance Intention among users."

"Modern technology for refrigerators and coolers is based on the chemical gas Chlorofluorocarbon (CFC) compression method that is indicative of a high consumption of electricity. The CFC is also understood as a reason for global warming. One of the solutions to this issue is magnetic refrigeration technology, which is environmentally friendly because it does not use any hazardous chemicals or ozone depleting/greenhouse gases. Magnetic refrigeration technology is based on the magnetocaloric effect of magnetic refrigerant materials. Exploring the magnetocaloric effect of magnetic refrigerant materials is important because these contain many of the physical properties needed for magnetic refrigeration technology. Herein, the present work reports on the magnetocaloric effect of La0.7Ca0.3Mn1?xSnxO3 (x = 0.0, x = 0.02 and x = 0.04) compound samples produced with the solid state reaction technique. Curie temperature TC obtained for the La0.7Ca0.3Mn1?xSnxO3 (x = 0.0, x = 0.02 and x = 0.04) are 260 K, 176 K and 170 K with -?SM max of 4.32 J×kg-1×K-1, 1.61 J×kg-1×K-1 and 1.24 J×kg-1×K-1 and a refrigerant capacity of 48 J/kg, 41.43 J/kg and 28.53 J/kg for x = 0.0, x = 0.02 and x = 0.04, respectively. A small addition of Sn-doped resulted in a significant decrease of more than 80 K on the Curie temperature scale compared to that of La0.7Ca0.3MnO3. The large gap in the decreasing magnetic temperature phase transition might be useful as an option of metal/transition metal doped for tuning the Curie temperature of magnetic refrigerant materials."