Judul: Hazard Mapping in Sembalun-Senaru HIking Trails, Mount Rinjani National Park
Abstrak: Kegiatan pendakian merupakan wisata utama di Taman Nasional Gunung Rinjani (TNGR). Gempa yang terjadi pada Agustus 2018 berdampak pada perubahan lanskap di jalur pendakian. Penelitian ini bertujuan mengidentifikasi, menilai dan memetakan potensi bahaya serta menyusun rekomendasi manajemen bahaya di jalur pendakian Sembalun-Senaru TNGR. Data dikumpulkan melalui observasi lapangan, wawancara dan studi pustaka. Analisis data bahaya fisik dan biologi mengacu United Nation Environment Programme (UNEP) sedangkan data bahaya aktivitas manusia mengacu National Patient Safety Agency (NPSA). Jenis bahaya yang ditemukan adalah tanah longsor, aktivitas gunung berapi, kebakaran, jurang, jalur curam, suhu rendah, kabut, satwa liar, bahaya tanaman dan aktivitas manusia. Jenis bahaya dengan nilai resiko tertinggi yaitu jalur terjal (fisik), akar pohon (biologis) dan berlari (manusia). Penanganan bahaya melalui tindakan preventif dilakukan dengan meningkatkan pengetahuan pendaki dan masyarakat melalui edukasi mengenai bahaya, peningkatan kualitas serta penambahan infrastruktur pendukung. Tindakan kuratif dilakukan dengan menetapkan standar operasional yang jelas untuk proses penanganan kecelakaan dan evakuasi. Kata kunci: jalur pendakian, manajemen bahaya, pemetaan potensi bahaya, Mountaineering activities are the main tourism in Mount Rinjani National Park (MRNP). The earthquake that occurred in August 2018 had an impact on changing the landscape on the hiking trail. This study aims to identify, assess and conclude potential hazards and develop recommendations for hazard management on the Sembalun-Senaru hiking trail in MRNP. The data was collected through field observations, interviews and literature study. Analysis of physical and biological hazard data refers to the United Nation Environment Program (UNEP) while human activity hazard data refers to the National Patient Safety Agency (NPSA). The types of hazards found are landslides, volcanic activity, fire, ravines, steep paths, low temperatures, fog, wildlife, plant hazards and human activities. The types of hazards with the highest risk values are steep paths (physical), tree roots (biological), and running (human). Handling hazards through preventive measures is carried out by increasing the knowledge of climbers and the public through education regarding hazards, improving quality and adding supporting infrastructure. Curative action is carried out by setting clear operational standards for the process of handling accidents and transportation. Keywords: hazard management, hiking trails, mapping potential hazards
Keyword: Pemetaan Bahaya, Jalur Pendakian, Manajemen Risiko, Taman Nasional Gunung Rinjani

Judul: Tourism Management Based on Potential Disaster in Mount Rinjani National Park, West Nusa Tenggara
Abstrak: Pulau Lombok merupakan salah satu pulau yang memiliki potensi bencana kebumian yang tinggi. Pulau Lombok mengalami perubahan iklim berupa penurunan curah hujan tahun 1917 – 1980 dan 2000 – 2008. Sejak bencana gempa pada tahun 2018 TNGR secara bertahap berupaya untuk menyiapkan standar keamanan yang baik seperti safety check, pemberian informasi mitigasi, dan prosedur evakuasi pengunjung. Penelitian ini bertujuan merumuskan pengelolaan wisata berbasis potensi bencana di Gunung Rinjani dengan mengidentifikasi bencana serta mengidentifikasi pengelolaan wisata. Metode yang digunakan adalah studi literatur, wawancara dan kuesioner berskala Likert yang dianalisis menggunakan metode analisis tiga kotak dan disajikan dalam bentuk deskriptif kualitatif. Bencana yang pernah terjadi adalah Letusan gunung berapi, Gempa bumi, Tanah longsor, Kebakaran, dan Puting beliung. Pengelolaan wisata berdasarkan bencana yang telah dilakukan berupa penyusunan SOP pendakian, Penutupan dan penataan jalur, penyuluhan kepada Pelaku wisata, pemantauan Gunung Barujari, penyelamatan dan evakuasi pengunjung, serta penerapan aplikasi E-Rinjani . Upaya mitigasi dan pengembangan sarana prasarana dibutuhkan dalam pengelolaan wisata berdasarkan potensi bencana di Gunung Rinjani., Lombok Island is one of the islands that has a high potential for natural disasters. Lombok Island experienced climate change in the form of decreased rainfall in 1917 – 1980 and 2000 – 2008. Since the earthquake in 2018 TNGR has gradually attempted to prepare good safety standards such as security checks, providing safety information, and visitor recovery procedures. This study aims to formulate disaster potential-based tourism management on Mount Rinjani by identifying disasters and identifying tourism management. The methods used were literature studies, interviews and Likert scale questionnaires which were analyzed using the three-box method analysis and presented in a qualitative descriptive form. Disasters that have occurred are volcanic eruptions, earthquakes, landslides, fires, and tornadoes. Disaster-based tourism management that has been carried out is in the form of preparing climbing SOPs, closing and structuring routes, counseling to tourism actors, coaching Mount Barujari, rescue and recovery of visitors, and implementing the E-Rinjani application. Efforts to utilize and develop the infrastructure needed in tourism management based on the potential for disasters on Mount Rinjani.
Keyword: e-rinjani, gempa bumi, kondisi iklim, manajemen wisata, persepsi

Judul: Penentuan Nilai Eigen dan Vektor Eigen dari Matriks Tridiagonal 2-Toeplitz dengan Pendekatan Polinomial Chebyshev
Abstrak: The eigenvalues and eigenvectors of a matrix can be determined by finding its characteristic polynomials. The characteristic polynomials of a tridiagonal 2-Toeplitz matrix is shown to be closely connected to polynomials which satisfy the Chebyshev recurrence relationship. If the order of the matrix is odd, then the eigenvalues are found explicitly in terms of the Chebyshev zeros and the eigenvectors are found in terms of the polynomials satisfying the recurrence relationship. For even ordered matrices, the situation is more complicated. The problem in these cases is that although the Chebyshev recurrence formula is still applied, its initial values are not generating Chebyshev polynomials
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