Judul: Perilaku Harian dan Pengelolaan Burung Elang Brontok (Nisaetus cirrhatus) di Pusat Konservasi Elang Kamojang Jawa Barat
Abstrak: Elang brontok (Nisaetus cirrhatus) merupakan burung pemangsa (predator) yang saat ini mengalami penurunan jumlah spesies di alam. Salah satu upaya untuk menjaga kelestarian populasinya adalah dengan cara konservasi in-situ dan rehabilitasi. Tujuan penelitian ini adalah untuk mengetahui perilaku harian, pengelolaan burung di Pusat Konservasi Elang Kamojang, serta menganalisis kriteria perilaku untuk kesiapan sebelum dilepasliarkan. Penelitian dilakukan pada bulan Februari sampai bulan Maret 2021 di Pusat Konservasi Elang Kamojang Jawa Barat. Pengamatan perilaku harian menggunakan metode Focal Animal Sampling, dan pengelolaan menggunakan metode wawancara, studi literatur, dan observasi. Perilaku harian Elang brontok (Nisaetus cirrhatus) di Pusat Konservasi Elang Kamojang yaitu perilaku diam (58,61%) yang meliputi aktivitas berdiri santai, melihat ke kiri dan ke kanan, menggeliat; perilaku bergerak (18,95%) meliputi menelisik, bersuara, membersihkan badan sambil menggetarkan tubuh, menggerakan ekor, berpindah, meluncur, dan terbang; perilaku makan (ingestif) (22,44%) meliputi aktivitas makan dan defekasi. Kegiatan pengelolaan meliputi kegiatan pengelolaan kandang, pengelolaan pakan, dan pengelolaan kesehatan., Changeable Hawk Eagle (Nisaetus cirrhatus) is a bird of prey (predator) that is currently experiencing a decline in the number of species in nature. One of the efforts to preserve the population is employing in-situ conservation and rehabilitation. The purpose of this study was to determine the daily behavior, management of birds at the Kamojang Eagle Conservation Center, and to analyze behavioral criteria for readiness before being released into the wild. The research was conducted from February to March 2021 at the Kamojang Eagle Conservation Center, West Java. Observation of daily behavior using Focal Animal Sampling method, and management using interviews, literature study, and observation. The daily behavior of Changeable Hawk Eagle (Nisaetus cirrhatus) at the Kamojang Eagle Conservation Center is silent behavior (58.61%) which includes activities of standing relaxed, looking left and right, squirming; moving behavior (18.95%) includes searching, making sounds, cleaning the body while shaking the body, moving the tail, moving, gliding, and flying; eating behavior (ingestive) (22.44%) includes eating and defecation activities. Management activities include cage management, feed management, and health management.
Keyword: behavior, eagle, management, predator, rehabilitation

Judul: Population and Habitat Javan Hawk-Eagle and Changeable Hawk-Eagle in SPTN 1 Kuningan Taman Nasional Gunung Ciremai Jawa Barat.
Abstrak: Elang jawa dan elang brontok merupakan salah satu jenis burung yang berada di TNGC dan terancam keberadaannya akibat perdagangan liar serta kebakaran. Penelitan elang jawa dan elang brontok di TNGC sangat sedikit. Peneltiian ini bertujuan mengidentifikasi habitat bagi elang jawa dan elang brontok pada TNGC SPTN 1 Kuningan. Data yang dikumpulkan meliputi titik perjumpaan, jumlah individu beserta jenis kelamin, perilaku, komponen dari habitat, vegetasi penyusun habitat, serta potensi pakan yang di temukan di area pengamatan. Populasi elang jawa setelah diamati berjumlah 8 ekor dengan karakteristik umur jantan, betina dan ditemukan 1 juvenile. Sedangkan perjumpaan pada elang brontok ditemukan 1 individu. Habitat dari elang jawa dan elang brontok diklasifikasikan berdasarkan fungsi penggunaan elang jawa dan elang brontok. Pohon sarang elang jawa adalah pohon kedondong hutan. Penggunaan habitat sebagai fungsi istirahat teramati menggunakan berbagai jenis pohon namun memiliki kesamaan karakteristik. Area berburu bagi elang jawa dan elang brontok berada pada hutan alam dan semak belukar., JHE and CHE are one of the type of birds that lived in TNGC its existence is threatened by various threats such as forest fires and illegal bird trade. Not much research has been done in TNGC, especially on JHE and CHE. This study aims to identify habitat for JHE and CHE in SPTN 1 Kuningan. The data that has been collected are meeting point, numbers of individual and its gender, behavior, habitat components, vegetation that formed habitat, and the potential feed found in the observation area. The population of JHE after being observed amounted to 8 with adult age and one juvenile. Otherwise, the population is found 1 individual. Habitat of JHE and CHE are classified according by its function of use. The nest tree of JHE used Spondias pinnata in natural forest. Habitat use for resting use different kind of tree and has similarity characteristic. Hunting area for JHE and CHE is in natural forest and thickets
Keyword: feed, nest, population, rest

Judul: Photovoltaic Effect In A CdS/P3HT-Chitosan Junction
Abstrak: A CdS/Polymer junction has been fabricated and it’s photovoltaic effect has been studied. The polymer is a blend of poly-3hexyltiophene (P3HT), chitosan and polyethileneglicol (PEG). Boron in situ doping of CdS using Chemical Bath Deposition (CBD) was investigated. The effect of B-doping and annealing on optical properties as well as on electrical and morphology of CdS film were studied. The structure and morphology of the film were detected by XRay Diffraction (XRD) and Scanning Electron Microscopy (SEM). The polymer film was sandwiched between the CdS semiconductor and an ITO glass to form an ITO/CdS/Polymer/ITO photovoltaic cell. Time constant (τ) and open circuit voltage (Voc) were investigated by using voltage censor. The bandgap of films were determined using absorbance edge method. The results of annealing optical bandgap of undoped CdS shifted from 2,49 eV down to 2,39 eV. Phase transition of CdS due to annealing temperature and induced lattice damage due to doping. The room temperature conductivity of polymer is 3,8 – 6,6 x 10-7 S/cm as function of frequency between 100 – 5000 Hz. The Voc of the fabricated cells ranges between 107 – 286 mV and time constant ranges between 2,5 to 43,75 s.
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