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: Economic Impact Analysis and  Management Strategy for Karang Hawu Beach Tourism Object, Sukabumi Regency,  West Java Province
Abstrak: Pariwisata di berbagai daerah dapat membantu perekonomian lokal. Salah satu objek wisata yang ada di Sukabumi yang cukup terkenal dan berkontribusi terhadap perekonomian lokal adalah Pantai Karang Hawu. Namun, isu bencana alam serta kurangnya sarana dan prasarana menyebabkan penurunan jumlah wisatawan. Tujuan penelitian ini yaitu ingin mengetahui bagaimana persepsi wisatawan, menganalis dampak ekonomi, dan merumuskan strategi pengelolaan objek wisata Pantai Karang Hawu. Metode analisis yang digunakan yaitu analis deskriptif kualitatif, skala likert, keynesian multiplier, dan analisis Strength Weakness Opportunities Threats (SWOT). Hasil penelitian ini menunjukkan bahwa: (1) Persepsi pengunjung terhadap Objek Wisata Pantai Karang Hawu tergolong baik, namun persepsi terhadap kebersihan serta fasilitas dan amenitas masih tergolong buruk; (2) Objek wisata Pantai Karang Hawu sudah memberikan dampak ekonomi kepada aktivitas masyarakat sekitar, penerimaan unit usaha, dan pendapatan tenaga kerja; (3) Rekomendasi strategi pengelolaan dapat dilakukan dengan cara mengoptimalkan potensi alam objek wisata melalui pemantauan secara rutin terhadap pelestarian sumberdaya alam wisata. Kata kunci: analisis SWOT, keynesian multiplier, skala likert, Tourism in various regions can help the local economy. One of the tourist attractions in Sukabumi that is quite famous and contributes to the local economy is Karang Hawu Beach. However, the issue of natural disasters and the lack of facilities and infrastructure caused a decrease in the number of tourists. The purpose of this study is to find out how tourists perceive, analyze the economic impact, and formulate a management strategy for Karang Hawu Beach attractions. The analytical methods used are descriptive qualitative analysis, Likert scale, Keynesian multiplier, and Strength Weakness Opportunity Threat (SWOT) analysis. The results of this study indicate that: (1) The visitor's perception of the Karang Hawu Beach Tourism Object is relatively good, but the perception of cleanliness and facilities and amenities is still relatively poor; (2) The Karang Hawu Beach Tourism Object has had an economic impact on the activities of the surrounding community, business unit acceptance, and labor income; (3) Recommendations for management strategies can be carried out by optimizing the natural potential of tourist objects through regular monitoring of the preservation of tourism's natural resources. Keywords: keynesian multiplier, likert scale, Strength Weakness Opportunity Threat analysis.
Keyword: keynesian multiplier, likert scale, Strength Weakness Opportunity Threat analysis.

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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