Judul: Sustainability of small scale capture fisheries (case study in Serang and Tegal)
Abstrak: Keberlanjutan perikanan tangkap ditentukan oleh interaksi berbagai faktor yang dalam Rapfish disebut dimensi, yaitu dimensi ekologi, ekonomi, sosial, teknologi serta hukum dan kelembagaan. Penelitian ini bertujuan untuk menentukan status perikanan tangkap skala kecil dalam perspektif keberlanjutan menurut kelima dimensi tersebut. Penelitian ini juga bertujuan untuk mengidentifikasi kebijakan yang dapat mendukung keberlanjutan perikanan tangkap skala kecil di lokasi penelitian. Teknik Rapfish, satu teknik analisis kuantitatif, digunakan untuk menentukan status keberlanjutan perikanan tangkap di perairan pantai Pasauran Kabupaten Serang (Banten) dan perairan pantai Kabupaten Tegal (Jawa Tengah). Teknik Rapfish dalam penelitian ini didukung oleh analisis pendugaan sumberdaya perikanan, analisis kinerja usaha perikanan tangkap, penentuan atribut pada setiap dimensi, penetapan skala dan skor secara multi dimensi. Dalam penelitian ini semua dimensi kecuali untuk dimensi ekologi telah dimodifikasi oleh penulis. Modifikasi ini dilakukan berdasarkan kondisi perikanan tangkap skala kecil di lokasi penelitian.
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Judul: Small-Scale Fisheries Management using a Social-Ecological System Approach on Panggang Island, Seribu Islands Administrative Regency, DKI Jakarta Province
Abstrak: Perikanan skala kecil di Pulau Panggang masih belum berjalan sesuai dengan peraturan yang ada. Nelayan Pulau Panggang masih menggunakan alat tangkap yang dilarang sehingga berpotensi merusak ekosistem dan menyebabkan konflik antar nelayan. Kompleksitas permasalahan perikanan di Pulau Panggang melibatkan komponen sosial dan ekologi. SocialEcological System adalah kerangka konsep sistem ekologi dan sistem sosial sebagai satu kesatuan sistem yang tidak terpisahkan Penelitian ini bertujuan untuk memetakan komponen dan konektivitas SES sebagai dasar strategi pengelolaan perikanan skala kecil Pulau Panggang. Penelitian dilaksanakan di Pulau Panggang, Kepulauan Seribu, DKI Jakarta selama Bulan November 2023. Teknik sampling yang digunakan yaitu metode purposive sampling. Jumlah responden dalam penelitian ini sebanyak 30 responden nelayan dan 2 responden pengepul. Hasil penelitian menunjukkan bahwa terjadi hubungan yang kuat antar komponen SES. Konektivitas RA dan RU memiliki interaksi yang paling kuat dalam jejaring konektivitas SES. Implementasi peraturan oleh RG masih lemah dan berpengaruh dalam tata kelola sumber daya. Strategi pengelolaan perikanan skala kecil di Pulau Panggang yang dapat dilakukan yaitu meningkatkan kolaborasi antara RG dan RA dalam mewujudkan keberlanjutan sumberdaya ikan di Perairan Pulau Panggang., Small-scale fisheries on Panggang Island are still not running in accordance with existing regulations. Panggang Island fishermen still use prohibited fishing gear, potentially damaging the ecosystem and causing conflicts between fishermen. The complexity of fisheries problems on Panggang Island involves social and ecological components. Social-Ecological System is a conceptual framework of ecological systems and social systems as an inseparable system. This study aims to map the components and connectivity of SES as the basis for Panggang Island's small-scale fisheries management strategy. The research was conducted on Panggang Island, Seribu Islands, DKI Jakarta during November 2023. The sampling technique used was purposive sampling method with descriptive analysis technique. The number of respondents in this study were 30 fishermen respondents and 2 collector respondents. The results showed that there was a strong relationship between SES components. RA and RU connectivity have the strongest interaction in the SES connectivity network. The implementation of regulations by RG is still weak and influential in resource governance. The strategy for managing small-scale fisheries in Panggang Island is to increase collaboration between RG and RA in realizing the sustainability of fish resources in Panggang Island Waters.
Keyword: pulau panggang, Perikanan, SES, Skala Kecil, Fisheries, Panggang Island, SES, Small-Scale

Judul: Hybrid solar cells of ZnO nanoparticles/chlorophyll was modified metal ions (Zn2+ and Cu2+ )
Abstrak: Zinc Oxide (ZnO) is a n-type semiconductor with a wide the energy band (Band Gap) is 3.37 eV at room temperature and 3.34 eV at low temperature with a large exiton binding energy is 60 meV. ZnO has been synthesized by hydrothermal method, resulting in a decrease in particle size over the duration of the hydrothermal changes. Crystallographic structure of ZnO were characterized using XRD, has shown the characteristic pattern of a hexagonal wurtzite structure, the crystallite size increases to changes in particle size. Changes in particle size has also led to a change in the absorption peak of ZnO as has been demonstrated posted under test using the optical properties of UV-Vis spectrophotometer. Changes of this uptake has also led to changes in the energy band gap, which increases its band gap energy of the particle size. In electronic applications, especially in solar cells. Chlorophyll is considered less effective, because of their very nature are easily degraded as a result of several reactions which are acid, lighting and temperature. The results of the stability test using a halogen lamp 34 W/m2 for 5 hours, that the substitution of chlorophyll with metal ions Zn2+ and Cu2+ has been shown to form more stable than natural chlorophyll. The characterization of the optical properties, the combination of ZnO / chlorophyll in the form of hybrid films has led to a shift in the absorption region of ZnO becomes more widely from the UV to Visible. ZnO/chlorophyll has absorption range of 350-515 nm, ZnO / Zn-feofitin 332-401 nm and 332-632 nm for Cu-feofitin. The combination of ZnO/chlorophyll and CuSCN as a solid electrolite in hybrid solar cell, a modified chlorophyll with metal ions Zn2+ and Cu2+ has been shown to form a more stable I-V curve. It is characterized by its fill factor value greater than natural chlorophyll. Nevertheless, solar cells with natural chlorophyll has been able to produce higher efficiency values of chlorophyll were substituted.
Keyword: Hydrothermal, ZnO/Chlorophyll modified, Hybrid Solar Cell