Judul: Parameter demografi dan pola penyebaran spasial rusa tumor (Cervus timorensis de Blainville, 1822) di pulau Rinca, Taman Nasional Komodo
Abstrak: Taman Nasional Komodo (TN Komodo) merupakan salah satu taman nasional situs warisan dunia (M'orld Heritage Sire). Kawasan ini memiliki keanekaragaman hayati yang luar biasa dan merupakan satu-satunya habitat reptil purba terbesar yaitu komodo (Varanus komodoensis). Rusa timor (Cervus timorensis de Blainville, 1822) merupakan satwa mangsa utama komodo. Ciofi et al (1999) menyatakan populasi rusa timor di TN Komodo saat ini mengalami penurunan yang secara langsung berpengaruh terhadap populasi komodo. Ancaman populasi diakibatkan oleh aktivitas pemanfaatan yang dilakukan oleh masyarakat dalam kegiatan berburu, keerentanan perubahan habitat akibat kebakaran dan gangguan anjing liar.
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Judul: Pemetaan Kesesuaian Habitat Rusa Timor (Rusa timorensis) di Pulau Komodo Taman Nasional Komodo
Abstrak: Rusa timor (Rusa timorensis) merupakan satwa endemik Indonesia yang telah diintroduksi ke berbagai wilayah. Introduksi dilaksanakan dengan berbagai tujuan, salah satunya sebagai mangsa untuk pendukung konservasi jenis lain seperti di Pulau Komodo. Penelitian bertujuan mengidentifikasi kesesuaian habitat rusa timor serta menganalisis komponen habitat yang mempengaruhi distribusinya di Pulau Komodo. Data berasal dari pemasangan camera trap selama 2 minggu di 14 titik yang telah dipasang umpan jagung pada bulan Februari-Maret 2023. Data tambahan keberadaan rusa diperoleh dari pengamatan petugas Balai Taman Nasional Komodo tahun 2022. Analisis data menggunakan multikolinearitas dan maximum entropy menghasilkan model dan nilai kesesuaian habitat. Kehadiran yang diperoleh sebanyak 33 (primer) dan 870 (sekunder). Model kesesuaian habitat yang diperoleh bersifat perfect explanatory (AUC = 0,941) dengan pembagian kelas yaitu tidak sesuai (0,58 ha), kurang sesuai (29.434,28 ha), cukup sesuai (1498,31 ha), sesuai (1309,88 ha) dan sangat sesuai (167,46 ha). Ketinggian, suhu dan number patch menjadi faktor paling berpengaruh dalam kesesuaian habitat rusa timor. Jenis ini menyukai dataran rendah, bersuhu hangat dan tutupan lahan yang bersatu padu. Savana dan hutan musim merupakan tutupan lahan yang paling disukai., Timor deer (Rusa timorensis) is Indonesia’s endemic animal which introduced outside their natural habitat. Introductions are carried out for various purposes, one of which is for support conservationists such as on the Komodo Island. The aims of the study were to identify the suitability of the Timor deer's habitat and analyze the habitat components that influence its distribution on Komodo Island. The data comes from installing camera traps for 2 weeks at 14 points that installed with corn bait in February-March 2023. Supported by data on the presence of deer from the TNK in 2022. Data analysis using multicollinearity and maximum entropy produced model and habitat suitability values. The presence obtained was 33 (primary) and 870 (secondary). (AUC = 0,941) with class divisions are not suitable (0,58 ha), less suitable (29.434,28 ha), quite suitable (1498,31 ha), suitable (1309,88 ha) and very suitable (167,46 ha). Altitude, temperature and number patch are the most influential factors in the suitability of Timor deer habitat. They likes lowlands, warm temperatures and unified land cover. Savana and moonson forest are the most preferred land cover.
Keyword: habitat, kesesuaian, rusa timor

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