Judul: Studi penyebaran reptil (Lacertilia, Testudines, dan Crocodylia) di Pulau Jawa menggunakan aplikasi sistem informasi geografis (SIG)
Abstrak: Walaupun informasi mengenai jenis reptil di Pulau Jawa telah dipublikasikan namun data mengenai jenis terkini serta daerah penyebarannya secara geografis belum diketahui secara pasti. Oleh karena itu perlu dilakukan penelaahan penyebaran spesies reptil serta pendokumentasian perubahan penyebarannya secara geografis. Tujuan penelitian ini adalah membuat daftar spesies reptil terkini di Pulau Jawa serta menelaah daerah penyebarannya berdasarkan spesimen museum dan laporan penelitian yang diolah dan dianalisis berdasarkan wilayah administrasi, ketinggian, dan tutupan lahan menggunakan aplikasi Arc GIS. Terdapat 42 spesies Sub-ordo Lacertilia di Pulau yang terbagi dalam 5 famili yakni Agamidae, Gekkonidae, Lacertidae, Scincidae, dan Varanidae. 11 Spesies Ordo Testudines dalam 4 famili Cheloniidae, Dermochelyidae, Geomydidae, dan Trionychidae. 1 spesies dari ordo Crocodylia. Sebagian besar spesies reptil (19 spesies) dapat ditemukan pada ketinggian 500- 1000 mdpl. Data menunjukkan eksplorasi reptil terfokus pada daerah Jawa Barat sehingga di masa mendatang diharapkan lebih banyak eksplorasi reptil dilakukan di wilayah Jawa lainnya terutama Jawa Tengah dan Jawa Timur.
Keyword: crocodile, distribution map, java island, lacertilia, testudines

Judul: Studi penyebaran sub-ordo ophidia di Pulau Jawa dengan menggunakan aplikasi Sistem Informasi Geografis (SIG)
Abstrak: Snake is one of reptiles that belong to the Ophidia suborder. Information on the number of species of snake and its distribution in Java is lacking so that research needs to be done. Information on number of species and distribution of snakes in Java can be obtained through checking existencing specimens in the museum and also through literature studies (i.e. journals and other publications) about the discovery of snakes on the island of Java. The results showed that snakes in Java consist of 100 species from 15 families and dominated by Colubridae which has 42 species. The highest record of snakes finding is in West Java (78 species). This may be caused by the discrepencies in research effort in Java where the highest research effort was carried out in West Java compared to other provinces in Java The number of snakes are highest low elevation (0-500 m above sea level), which has 60 species and decrease with increasing elevation.
Keyword: Bogor Agricultural University (IPB), snakes, Java Island, distribution

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