Judul: Use of space in the sexual behavior of timor deer (Cervus timorensis) in deer captive breeding of the IPB Darmaga
Abstrak: Pengembangbiakan rusa timor banyak mengalami kendala diakibatkan masih kurangnya pengetahuan mengenai faktor pendukung dalam keberlangsungan pengembangbiakan. Keberlangsungan pengembangbiakan rusa timor berkaitan erat dengan perilaku seksual rusa timor jantan terhadap rusa timor betina. Penangkaran rusa kampus IPB Darmaga merupakan salah satu contoh usaha pengembangbiakan rusa timor. Penelitian ini bertujuan mengidentifikasi perilaku seksual rusa timor dan penggunaan ruang dalam perilaku seksual rusa timor di penangkaran rusa kampus IPB Darmaga. Pengumpulan data dilakukan pada bulan Agustus-September 2020 melalui telaah pustaka, observasi lapang, dan wawancara. Analisis data dilakukan secara deskritif dan kuantitatif. Perilaku seksual rusa timor di penangkaran rusa kampus IPB Darmaga terdiri dari perilaku rusa jantan mendekati rusa betina, rusa jantan mencium alat kelamin rusa betina, rusa jantan mengendus urin rusa betina dan rusa jantan menaiki punggung rusa betina. Perilaku kopulasi tidak ditemukan selama pengamatan. Penggunaan ruang terhadap perilaku seksual rusa paling dominan merupakan tempat rusa menghabiskan waktu dan tempat pemberian pakan.
Keyword: IPB Darmaga, penangkaran, perilaku seksual, rusa timor

Judul: Perencanaan Penangkaran Rusa Timor (Cervus timorensis de Blainville) dengan Sistem Farming : Studi Kasus di Penangkaran Rusa Kampus IPB Darmaga
Abstrak: Timor deer (Cervus timorensis de Blainville) is one of Indonesia wildlife species which population growth on natural habitat facing many threats as impact of human activities, like wild hunting and habitat destinction and fragmentation. Timor deer can be developed as livestock in the future its ability in difference geographic area of Indonesia. Farming system is appropriate model to be developed, because majority of Indonesian farmers ha ve about less than 1 hectares of farm area. The objectives of this research are: to analyse suitable location, to analyse breeding plan and economical aspect. The research was caried out in captive breeding field labratory of IPB Darmaga Campus. Equipments which have been used are: digital camera, rool meter, weighing-machine and a set of computer with design program. Materials which used are: map, timor deers and plastic bags. This research used field observation method, literature study and interview method. Pursuant to this research with based on bioecological condition, IPB captive breeding is suitable for timor deer captive location. Farm location was devideed into: headquarter zone 0,10 hectare (2,35%) and captive breeding zone 4,15 hectare (97,65%). Captive breeding management to be executed is farming system. Based on economic analysis, until 21,35% interest, captive breeding with farming system still give advantage if population size of parent stock in first year are 105, and 210 in second year and to be taken care until ninth year, with payback period 4,53 years.
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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