Judul: Studi Morfometrik Perna Viridis Linnaeus 1758 di Muara Angke dan Pelabuhanratu
Abstrak: The water in North Jakarta is polluted water. This pollution affect the life of biotic in the water. Green mussel (Perna viridis) is one species that can live in that polluted water. Environment affect green mussel’s growth. The objective of present study is to compare the growth pattern and morphometric of Perna viridis in polluted area (Muara Angke) and less polluted area (Pelabuhanratu). This study used graphic analyse method to see the connection between each parameter. The results of this study proves there is morphometric difference in shell length with average for Muara Angke and Pelabuhanratu with value 54.14 mm and 49.94 mm, shell width with average for Muara Angke and Pelabuhanratu with value 25.86 mm and 24.77 mm , shell height with average for Muara Angke and Pelabuhanratu with value 17.5 mm and 14.74 mm , shell weight with average for Muara Angke and Pelabuhanratu with value 4.78 g and 3.52 g , shell length and shell weight ratio with average for Muara Angke and Pelabuhanratu with value 13.28 and 15.41 , shell length and shell width ratio with average for Muara Angke and Pelabuhanratu with value 2.11 and 2.02 , shell length and shell height ratio with average for Muara Angke and Pelabuhanratu with value 3.33 and 3.4, shell width and shell height ratio with average for Muara Angke and Pelabuhanratu with value 1.59 and 1.7, and condition index of Perna viridis with average for Muara Angke and Pelabuhanratu with value 12.14 and 12.98.
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Judul: Studi Patologi Kerang Hijau (Perna viridis) asal Muara Kamal, Teluk Jakarta
Abstrak: Green mussel (Perna viridis) is a filter feeder organism that is abundant in nature and have a long life span. The mussel have become a biologic indicator for environmental contamination. Pathological conditions caused by environmental contaminants and infections can be observed by staining the tissue section. The aim of this study was to observe histopathological finding of green mussel cultured at Muara Kamal, Jakarta Bay. Twenty one green mussels of various size and age were observed. The lesions found were degenerative lesions such as pigmentation and loss of epithelial cilia. These lesions were considered due to low heavy metals contamination since the measurement of Hg, Pb, and Cd level still in the normal range. Hemocytes infiltration observed in some tissue were thought as body defense reaction. The protozoan Nematopsis spp. infection were detected in gills lumina, connective tissue of mantle and within digestive tract.
Keyword: Bogor Agricultural University (IPB), Perna viridis, histopathology, green mussel

Judul: Elektrodeposisi Film Tipis Semikonduktor Cu2ZnSnS4 (CZTS) pada Substrat Kaca ITO
Abstrak: Semiconductor Cu2ZnSnS4 (CZTS) thin film that can be used as absorber layers on solar cell module was made via electrodeposition method. CZTS thin film was electrodeposited on the surface of a silicate glass coated with a thin layer of indium tin oxide (ITO). Deposition process was done using potentiostatic mode at room temperature with a potential of 1.05 V for 30, 45, and 60 minutes, followed with annealing the film at 2 different temperatures, 500 ºC using furnace and 180 ºC using hot plate, both treatments for 45 minutes in N2/H2S atmosphere. The X-ray difractograms were analyzed using Match 2 program and showed that the CZTS thin films had kesterit crystalline structure, with a low percentage of CZTS phase. The thin film also contained secondary phases such as Cu2S, ZnS, and SnS. The obtained CZTS thin films had a thickness between 1.039 and 1.676 μm. Absorption study showed that the band gap energy of CZTS thin films which was annealed using furnace ranged from 1.50 to 1.52 eV, whereas that annealed using the hot plate was not observed. The band gap energy value showed that CZTS thin films can be used as sunlight absorber layers on solar cell. The formation of CZTS crystal film on this investigation was effectively performed using furnace annealing process at a temperature of 500 ºC with deposition time of 45 minutes.
Keyword: Thin film, Electrodeposition, Cu2ZnSnS4