Judul: Profil Leukosit dan Rasio Neutrofil/Limfosit (N/L) pada Kerbau Lumpur (Bubalus bubalis) Betina Selama Dua Minggu Adaptasi Pasca Transportasi
Abstrak: The objective of this experiment was to study the total leukocyte counts, leukocyte differential counts, and neutrophil/lymphocyte (N/L) ratio of swamp buffaloes in two weeks adaptation of post-transportation. Four female swamp buffaloes aged 2 years old were used in this experiment. Blood samples were collected from jugularis vein every day for two weeks to determine the total leukocyte counts, leukocyte differential counts, and N/L ratio. Results of this study showed that the total leukocyte counts was 8.91-18.83×10³/μl. The neutrophil, eosinophil, monocyte, and lymphocyte counts were 4.87-10.41×10³/μl, 0.66-1.75×10³/μl, 0.11-0.58×10³/μl, and 2.98-6.21×10³/μl, respectively. The N/L ratio was 1.23-3.49. In conclusion, the average of N/L ratio is 1.5 for 4 buffaloes, which indicated that animals were in stress condition after transportation.
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Judul: Diferensial Leukosit dan Rasio Neutrofil/Limfosit pada Kerbau Lumpur (Bubalus bubalis) Betina.
Abstrak: Penelitian ini dilakukan untuk mengetahui jumlah total leukosit, jenis-jenis leukosit, dan rasio neutrofil/limfosit (N/L) sebagai indeks stres pada kerbau lumpur (Bubalus bubalis) betina selama sepuluh minggu. Darah kerbau lumpur diambil setiap dua hari sekali selama sepuluh minggu. Darah diambil melalui vena jugularis menggunakan tabung berisi EDTA. Sel darah putih dihitung dengan kamar hitung (hemocytometer) dan preparat ulas darah untuk menghitung jenis leukosit diwarnai dengan pewarnaan giemsa. Rataan dari total leukosit adalah 10845,89±2518,20 sel/mm3 , dengan total neutrofil 6084,29±2214,96 sel/mm3, eosinofil 170,88±156,77 sel/mm3 , monosit 231,65±172,89 sel/mm3, dan limfosit 4361,17±1926,58 sel/mm3. Rasio N/L pada kerbau 1,76±1,13.
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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