Judul: Kajian serologis Bovine Viral Diarrhea (BVD) pada sapi potong impor di daerah Jawa Barat
Abstrak: Bovine viral diarrhea is a strategic infectious disease that should be concerned and priority controlled in Indonesia. BVD is a disease that can affect productivity and population growth of cattle. The aim of this study was to know the serological analysis of BVD on imported cattle in West Java. This research used 474 samples of blood serum from Australia’s cattle in Cianjur, Subang, Bogor, and Bandung. BVD virus test used ELISA method. The result of this study showed 67.51 % seropositive BVD in West Java. Confirmation test with PCR and controlling method should be done in order to control the imported cattle.
Keyword: bovine viral diarrhea (BVD), cattle, ELISA.

Judul: Kajian serologis Bovine Viral Diarrhea (BVD) pada sapi potong impor di Daerah Banten
Abstrak: Bovine Viral Diarrhea (BVD) is an acute epizootic disease and often causes death which characterize by clinical symptoms such as diarrhea and erosive lesions in the gastrointestinal tract. The agent caused this BVD is a pestivirus, family Flaviviridae. This disease is a strategic infectious disease that should be concerned in Indonesia. The aim of this research was to asses this BVD’s diseases in imported cattle at Banten. Enzyme linked immunosorbant assay (ELISA) is one of the methods that can be used to detect of BVD virus infection. Samples which were used in BVD’s serological test in Banten were 230 samples. There were 173 (75.22%) samples showed positive results of BVD while about 57 (24.78%) samples showed negative of BVD.
Keyword: bovine viral diarrhea, cattle, ELISA

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