Judul: Exploration of Interrelationships Dynamic between Social-Ecological Systems of Lobster Fisheries in the Gunungkidul Regency Waters, Special Region of Yogyakarta Province
Abstrak: Lobster merupakan komoditas perikanan unggulan yang terdapat di Kabupaten Gunungkidul. Pengelolaan sumberdaya lobster di perairan Kabupaten Gunungkidul belum teridentifikasi dengan baik dalam kerangka sistem sosial-ekologi (SES). Penelitian ini bertujuan untuk mendeskripsikan dan menganalisis dinamika keterkaitan antar komponen sistem sosial-ekologi perikanan lobster di Kabupaten Gunungkidul yang terdiri dari subsistem resources systems (RS), resources units (RU), resources actors (RA), dan resources governance (RG) serta keterkaitannya masing-masing di dalam subsistem maupun antar subsistem untuk merumuskan strategi pengelolaan lobster yang berkelanjutan di perairan Kabupaten Gunungkidul. Penelitian ini dilaksanakan mulai bulan November 2022 hingga bulan Januari 2023. Hasil penelitian ini menunjukkan bahwa terjadi interaksi yang dinamis antara komponen SES perikanan lobster. RS dan RA merupakan komponen SES yang memiliki pengaruh terbesar sehingga perubahan sekecil apa pun yang terjadi di RS maupun RA dapat menyebabkan perubahan secara co-evolutif kepada seluruh komponen SES perikanan lobster di perairan Kabupaten Gunungkidul.
Keyword: Perairan Kabupaten Gunungkidul, Lobster, Sistem Sosial-Ekologi

Judul: Social-Ecological System Connectivity of Lobster Fisheries (Panulirus spp.) in Waters of Sukabumi Regency, West Java Province
Abstrak: Lobster merupakan komoditas perikanan unggulan yang terdapat di Kabupaten Sukabumi. Pengelolaan sumberdaya lobster di perairan Kabupaten Sukabumi belum terpetakan dengan baik dalam kerangka sistem sosial-ekologi (SES). Penelitian ini bertujuan memetakan konektivitas antar sistem sosial-ekologi perikanan lobster di Kabupaten Sukabumi dengan komponen Resources Systems (RS), Resources Units (RU), Resources Actors (RA), dan Resources Governance (RG) serta keterkaitannya satu sama lain untuk merumuskan strategi pengelolaannya. Penelitian dilakukan pada bulan Januari 2023 hingga bulan April 2023 di wilayah perairan Kabupaten Sukabumi, Provinsi Jawa Barat. Penelitian ini dilakukan dengan menggunakan pendekatan Social-Ecological System (SES). Hasil penelitian menunjukkan adanya pengaruh dan interaksi yang positif antara Resources Actors (RA) dengan Resources Units (RU) dalam Resources Systems (RS), namun relatif negatif dalam kerangka sistem Resources Governance (RG). Strategi pengelolaan sumberdaya lobster dapat dilakukan melalui kolaborasi yang baik antara pemerintah dan pengguna sumberdaya untuk menjaga kelimpahan sumberdaya lobster., Lobster is a leading fishery commodity in Sukabumi Regency. Management of lobster resources in the waters of Sukabumi Regency must be adequately mapped within the social-ecological system (SES) framework. This study aims to map the connectivity between and within components of the social-ecological system of lobster fisheries in Sukabumi Regency with the components of Resources Systems (RS), Resources Units (RU), Resources Actors (RA), and Resources Governance (RG) and their interrelationships with one another to formulate a management strategy. The research was conducted from January 2023 to April 2023 in the territorial waters of Sukabumi Regency, West Java Province. This research was conducted using the Social-Ecological System (SES) approach. The results of the study show that there is a positive influence and interaction between Resources Actors (RA) and Resources Units (RU) in Resources Systems (RS) but relatively negative in the framework of the Resources Governance (RG) system. Lobster resource management strategies can be carried out through good collaboration between the government and resource users to maintain the abundance of lobster resources.
Keyword: connectivity, lobster, management, social-ecological system

Judul: Elektrodeposisi Film Tipis Semikonduktor Cu2ZnSnS4 (CZTS) pada Substrat Kaca ITO
Abstrak: Semiconductor Cu2ZnSnS4 (CZTS) thin film that can be used as absorber layers on solar cell module was made via electrodeposition method. CZTS thin film was electrodeposited on the surface of a silicate glass coated with a thin layer of indium tin oxide (ITO). Deposition process was done using potentiostatic mode at room temperature with a potential of 1.05 V for 30, 45, and 60 minutes, followed with annealing the film at 2 different temperatures, 500 ºC using furnace and 180 ºC using hot plate, both treatments for 45 minutes in N2/H2S atmosphere. The X-ray difractograms were analyzed using Match 2 program and showed that the CZTS thin films had kesterit crystalline structure, with a low percentage of CZTS phase. The thin film also contained secondary phases such as Cu2S, ZnS, and SnS. The obtained CZTS thin films had a thickness between 1.039 and 1.676 μm. Absorption study showed that the band gap energy of CZTS thin films which was annealed using furnace ranged from 1.50 to 1.52 eV, whereas that annealed using the hot plate was not observed. The band gap energy value showed that CZTS thin films can be used as sunlight absorber layers on solar cell. The formation of CZTS crystal film on this investigation was effectively performed using furnace annealing process at a temperature of 500 ºC with deposition time of 45 minutes.
Keyword: Thin film, Electrodeposition, Cu2ZnSnS4