Judul: Economic Analysis and Development Strategy of Randusanga Indah Beach Tourism Brebes, Central Java
Abstrak: Pantai Randusanga Indah merupakan salah satu destinasi wisata di Kabupaten Brebes yang dapat dengan mudah diakses dan menarik perhatian banyak pengunjung. Pengunjung Pantai Randusanga Indah mengalami penurunan dari tahun 2019 hingga 2022. Penurunan ini disebabkan oleh minimnya promosi, rusaknya jalan menuju pantai, masalah sampah, dan kurangnya atraksi yang ditawarkan. Tujuan penelitian ini adalah 1) mengidentifikasi persepsi wisatawan, 2) mengestimasi nilai ekonomi wisata, 3) mengestimasi manfaat ekonomi wisata, dan 4) menganalisis strategi pengembangan wisata. Metode yang digunakan dalam penelitian ini adalah skala likert, travel cost method, analisis kontribusi penerimaan, dan PROMETHEE. Hasil penelitian menunjukkan bahwa persepsi wisatawan memiliki skor rata-rata 2,31, yang menunjukkan penilaian yang kurang baik terutama pada aksesibilitas. Nilai ekonomi objek wisata ini sebesar Rp 124.381.551 per tahun. Manfaat ekonomi pariwisata bagi masyarakat dengan persentase penerimaan total tenaga kerja rata-rata 75 persen dan persentase penerimaan total pelaku usaha rata-rata 73 persen. Salah satu strategi pengembangan yang dapat diprioritaskan adalah kebijakan promosi melalui media sosial dengan skor 0,551., Randusanga Indah beach is one of the tourist destinations in Brebes that can be easily accessed and attracts the attention of many visitors. The number of visitors to Pantai Randusanga Indah has experienced a decline from 2019 to 2022. This decrease is caused by promotion efforts, attributed to the damaged road leading to the beach, waste management issues, and a lack of offered attractions. The objectives of this research are to identify tourists’ perceptions, to estimate the economic value, to estimate benefits of tourism, and to analyze tourism development strategies. The methods used in this study include likert scale, travel cost method, income contribution analysis, and PROMETHEE analysis. The research findings indicate that tourists’ perceptions have an average score of 2,31, indicating relatively poor ratings, especially accessibility. The economic value of this tourist destination is estimated to be IDR 124.381.551 per year, with tourism providing economic benefits to the local community. an Average total labor income contribution of 75 percent and an average total business income contribution of 73 percent. One of the prioritized development strategies is implementing a promotion policy through social media, with a score of 0,551.
Keyword: economic benefits, natural tourism, PROMETHEE, tourist perceptions, travel cost method

Judul: Estimation of Economic Value and Sustainability Analysis of the Anyer Beach Tourism, Anyer District, Serang Regency, Banten Province
Abstrak: Pantai Anyer merupakan salah satu destinasi wisata yang mampu menarik wisatawan untuk berkunjung karena anugerah keindahan alamnya. Pantai Anyer dinobatkan sebagai salah satu destinasi unggulan yang ada di Provinsi Banten yang mendapatkan predikat sebagai Seven Wonders of Banten. Hal ini membuat objek wisata tersebut selalu mengalami peningkatan jumlah kunjungan wisatawan dari tahun ke tahun. Akan tetapi, terdapat kawasan industri yang lokasinya berdekatan dengan wisata Pantai Anyer dan mengancam keberlanjutan objek wisata tersebut. Berdasarkan uraian sebelumnya, tujuan dari penelitian ini yaitu (1) Mengestimasi nilai ekonomi objek wisata Pantai Anyer. (2) Menganalisis status keberlanjutan objek wisata Pantai Anyer. (3) Merumuskan strategi pengembangan objek wisata Pantai Anyer yang berkelanjutan. Metode yang digunakan dalam penelitian ini adalah metode Individual Travel Cost Method, Rapfish, dan Interpretative Structural Modelling. Hasil penelitian menunjukkan bahwa : (1) Nilai ekonomi wisata Pantai Anyer sebesar Rp236.744.853.420,20 per tahun. (2) Status keberlanjutan wisata Pantai Anyer dari keempat dimensi dinyatakan cukup berkelanjutan. (3) Sub-elemen kunci dalam strategi pengembangan wisata adalah meningkatkan partisipasi masyarakat dalam menjaga dan mengembangkan objek wisata pantai, meningkatkan peran stakeholders dalam menjaga dan mengembangkan objek wisata pantai, serta meningkatkan kualitas SDM pengelola wisata dan masyarakat sekitar objek wisata pantai., Anyer Beach is one of the tourist destinations capable of attracting visitors due to its endowment of natural beauty. Anyer Beach has been named one of the top destinations in Banten Province, earning the title of one of the Seven Wonders of Banten. This recognition has led to a continuous increase in visitors to this tourist attraction each year. However, there is an industrial area located near the Anyer Beach tourist site, posing a threat to the sustainability of the tourist destination. Based on the description above, the objectives of this study are (1) To estimate the economic value of the Anyer Beach tourist site. (2) To analyze the sustainability status of the Anyer Beach tourist site. (3) To formulate a sustainable development strategy for the Anyer Beach tourist site. The methods used in this study are the Individual Travel Cost Method, Rapfish, and Interpretative Structural Modelling. The study's results indicate that: (1) The economic value of Anyer Beach tourism is 236,744,853,420.20 IDR per year. (2) The sustainability status of Anyer Beach tourism from the four dimensions is considered fairly sustainable. (3) The key subelements in the tourism development strategy are increasing community participation in maintaining and developing the beach tourist site, enhancing the role of stakeholders in maintaining and developing the beach tourist site, and improving the quality of human resources managing the tourism and the surrounding community of the beach tourist site.
Keyword: Individual Travel Cost Method, Interpretative Structural Modelling, Rapfish, Strategi pengembangan wisata

Judul: Synthesis of Apatite - Chitosan Composite Using Duck Eggshell and Chitosan with Temperature and pH Control
Abstrak: Composite of apatite-chitosan was prepared by using chitosan as polymer matrix. Calcium phosphate was prepared from CaO and (NH4)2HPO4, which the ratio Ca : P had to be 1.67. Chitosan is produced by deacetilase from biopolymer chitin. Duck eggshell (95% CaCO3) as starting material was converted to be calcium oxide (CaO) through calcinations with temperature 1000oC for 5 hours. In-situ and ex-situ methods were prepared from apatite and chitosan (dissolved with acetate acid 2%). Calcium phosphate prepared for bone implantation, but it is too fragile and brittle to be implant into the body. So addition of chitosan can decrease crystalinity and increase mechanic characteristic (tougher). Composite apatite-chitosan was resulted by fast precipitation. Fast precipitation was held in a breaker glass with nitrogen atmosphere, under controlled temperature at 37oC and pH 7, in order to increase amount of hydroxyapatite. Precipitation with CaO which was dropped by (NH4)2HPO4. Hydroxyapatite and chitosan were appearing at samples with in-situ and ex-situ methods which indicating by peak matching of XRD (closed lattice parameter, crystal size), overlapping at FTIR spectra and supporting by SEM picture (homogenous and agglomerated particle). However, it still needs further research to examine biocompatibility osteoconductive degree of sample by in-vivo and in-vitro test.
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