Judul: Estimation of the Economic Value Of Tourism and COVID-19 Impact to Loji Pine Forest, Blitar District
Abstrak: Pada Desember 2019, Virus COVID-19 pertama kali muncul di Wuhan, Cina dan menyebar ke seluruh dunia termasuk Indonesia. Penyebaran virus COVID-19 yang telah meluas ke berbagai belahan dunia berdampak pada penutupan tempat wisata. Pemberlakuan kebijakan new normal dan Pemberlakukan Pembatasan Kegiatan Masyarakat (PPKM) berdampak pada tingkat kunjungan wisatawan salah satunya pada wisata Hutan Pinus Loji. Tujuan dari penelitian ini adalah: (1) mengetahui persepsi wisatawan terhadap kondisi Hutan Pinus Loji, (2) mengidentifikasi dampak pandemi COVID-19 terhadap tingkat kunjungan wisata Hutan Pinus Loji, (3) mengetahui persepsi wisatawan terhadap COVID-19, (4) mengidentifikasi faktor-faktor yang mempengaruhi tingkat kunjungan wisata Hutan Pinus Loji, (5) mengestimasi nilai ekonomi wisata dari Hutan Pinus Loji. Penelitian ini menggunakan metode skala likert, travel cost method, dan analisis regresi poisson. Hasil penelitian menunjukan persepsi wisatawan terhadap kondisi Hutan Pinus Loji adalah sangat baik. Hasil perbandingan jumlah wisatawan Hutan Pinus Loji tahun 2018 – April 2021 menunjukkan bahwa virus COVID-19 tidak mengurangi jumlah kunjungan wisatawan. Kesadaran wisatawan atas masalah wabah virus COVID-19 dan pentingnya penerapan protokol kesehatan sudah sangat baik. Hasil estimasi nilai ekonomi wisata Hutan Pinus Loji sebesar Rp 38.186.813 per tahun dan terdapat dua faktor yang berpengaruh terhadap jumlah kunjungan yaitu lama mengetahui dan persepsi rata-rata wisatawan terhadap kondisi Hutan Pinus Loji., In December 2019, COVID-19 virus first appeared in Wuhan, China, then spread throughout the world including Indonesia. The outbreak has forced the closure of many tourist attractions. The implementation of the new normal policy and mobility restriction (PPKM) influence the level of tourist visits in many tourist sites including Loji Pine Forest. This research aims to: (1) analyze tourist perceptions regarding to Loji Pine Forest condition, (2) identify the impact of the COVID-19 on the level of tourism visits at Loji Pine Forest, (3) analyze tourist perceptions related to COVID-19 pandemic, (4) identify factors that influence the number of visits to Loji Pine Forest, (5) estimate the economic value of tourism of Loji Pine Forest. The data analysis method used in this research is the likert scale analysis, descriptive analysis, travel cost method, and Poisson regression. The results show that tourists' perception on Loji Pine Forest condition is very good. The data on tourist visits during 2018 – April 2021 shows that the COVID-19 outbreak did not reduce the number of tourist visits to Loji Pine Forest. Tourists’ awareness on the pandemic and the importance of health protocol is very good. The estimation results of the economic value of tourism is IDR 38.186.813 per year. There are two factors that affects the number of visits: duration of recognition and tourists’ average perception on the condition of Loji Pine Forest
Keyword: persepsi wisatawan, regresi poisson, skala likert

Judul: Analysis of Economic Valuation and the Impact of COVID-19 Pandemic Towards the Visits Level of Ir. H. Djuanda Bandung Grand Forest Park
Abstrak: Perubahan iklim yang dipicu oleh pemanasan global merupakan permasalahan lingkungan yang menjadi perhatian penting dunia. Penyumbang gas karbon dioksida penyebab pemanasan global salah satunya merupakan wilayah perkotaan. Kota Bandung sebagai kota yang memiliki daya tarik kunjungan wisata lokal dan mancanegara yang tinggi berimplikasi pada menurunnya kualitas lingkungan. Salah satu upaya untuk mengatasi hal ini adalah membangun dan merevitalisasi RTH yaitu Taman Hutan Raya Ir. H Djuanda Bandung. Tingginya ancaman yang ada dan potensi pemanfaatan Tahura Bandung sebagai area ekowisata perlu dijaga dan dilestarikan oleh masyarakat maupun pemerintah. Penelitian ini bertujuan untuk 1) menganalisis persepsi pengunjung terhadap keberadaan Taman Hutan Raya Ir. H. Djuanda Bandung; 2) menganalisis persepsi pengunjung terhadap COVID-19; 3) menganalisis pengaruh pandemi COVID-19 terhadap tingkat kunjungan Taman Hutan Raya Ir. H. Djuanda Bandung; dan 4) mengestimasi besarnya nilai guna tidak langsung dan nilai keberadaan Taman Hutan Raya Ir. H. Djuanda Bandung. Metode yang digunakan adalah skala Likert, Pendekatan harga pasar, Benefit Transfer, dan Contigent Valuation Method. Selama pandemi COVID-19 pengunjung memberikan penilaian yang baik terhadap kawasan Taman Hutan Raya Ir. H. Djuanda Bandung. Pengunjung sepakat bahwa COVID-19 adalah virus berbahaya. Pandemi COVID-19 terbukti menyebabkan peningkatan tingkat kunjungan dikarenakan perubahan persepsi berwisata masyarakat. Total nilai ekonomi tidak langsung di Taman Hutan Raya Ir. H. Djuanda Bandung adalah sebesar Rp 28.232.524.275., Climate change triggered by global warming is an environmental problem that has become an important concern for the world. One of the contributors to carbon dioxide gas that causes global warming in urban areas. Bandung as a city that has attracted local and foreign tourist visits has implications on degrading the environmental quality. One of the efforts to overcome this is to build and revitalize green open space, namely Ir. H Djuanda Bandung Grand Forest Park. The high threat that exists and the potential use of Ir. H. Djuanda Bandung Grand Forest Park as an ecotourism area needs to be maintained and preserved by the community and the government. This study aims to 1) analyze visitor perceptions of the existence of Ir. H. Djuanda Bandung Grand Forest Park; 2) analyze visitors' perceptions of COVID-19; 3) analyze the effect of the COVID-19 pandemic on the level of visits to the Ir. H. Djuanda Bandung Grand Forest Park; and 4) estimate the magnitude of the indirect use value and existence value of Ir. H. Djuanda Bandung Grand Forest Park. The methods used are the Likert scale, market price approach, Benefit Transfer, and Contingent Valuation Method. During the COVID-19 pandemic, visitors gave a good assessment of the Ir. H. Djuanda Bandung Grand Forest Park. Visitors agree that COVID-19 is a dangerous virus. The COVID-19 pandemic has proven to have caused an increase in visit rates due to changes in people's perceptions of tourism. The total indirect economic value in Ir. H. Djuanda Bandung Grand Forest Park is Rp. 28,232,524,275.
Keyword: contingent valuation method, visitor perception, Likert scale

Judul: Membran Komposit Kitosan-Natrium Alginat untuk Aplikasi Direct Methanol Fuel Cell
Abstrak: Composite of chitosan and sodium alginate can be utilized as base material of proton exchange membrane (PEM). The composite membranes were produced by various concentrations of chitosan-sodium alginate, namely 3:3, 3:4, 3:5, 3:6, 4:3, 5:3, and 6:3 (% b/v). The composites were characterized by using Fourier transform infrared spectrophotometer (FTIR), scanning electron microscope (SEM), and were tested for the performance as PEM from the proton conductivity obtained by using impedance spectrometer. The FTIR spectrum indicated the NH3C group at 1637.29 cm-1 and symmetrical COO group at 1253.68 cm-1 indicating interactions between chitosan and sodium alginate. SEM micrographs showed that the composite membrane was nonporous. Composite membrane with 3:5 chitosan-sodium alginate composition had the highest proton conductivity, namely 9.594 × 10-7 S/cm. Based on this research results, chitosan-sodium alginate composite membrane can be applied well in direct methanol fuel cell system.
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