Judul: Penyakit Infectious Bovine Rhinotracheitis Infectious Pustular Vulvovaginitis Pada Sapi
Abstrak: Penyakit Infectious Bovine Rhinotracheitis - Infectious Pustular Vulvovaginitis adalah penyakit menular pada sapi selain juga dapat menyerang kerbau, babi, kambing, rusa, antilope dan wild beest. agen penyebabnya adalah virus famili Hervesviridae type 1, mempunyai simetri icosahadral, berinti DNA dan berserabut ganda (double stranded) serta mempunyai nucleocaspid.
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Judul: IBR-IPV sebagai penyebab kegagalan reproduksi dan penanggulangannya pada sapi
Abstrak: Infectious Bovine Rhinotracheitis Infectious Pustular Vulvovaginitis(IBR-IPV) adalah suatu penyakit viral akut yang disebabkan oleh anggota kelompok virus Herpes famili Herpesviridae. Virus ini menyebabkan delapan bentuk gejala klinis yaitu (a) bentuk respiratorius bagian atas, (b) bentuk konjungtival, (c) bentuk digestif neonatal, (d) bentuk meningo-encephalitis, (e) bentuk vulvova- ginal, (f) bentuk preputial, (g) bentuk prenatal atau bentuk abortif dan (h) bentuk intra uterin. Peranan penyakit ini di dalam reproduksi adalah karena menyebabkan radang vulva dan vagina, abortus, degenerasi berat epitel seminiferi dan peradangan preputium, infertilitas dan sterilitas. Sedangkan pada anak-anak sapi dan sapi muda, virus IBR-IPV menyebabkan kerusakan saluran pencernaan dan meningoencephalitis. Selain itu virus ini bisa menyebabkan mastitis dan penurunan produksi susu. Diagnosa penyakit dapat dilakukan dengan melihat gejala klinis dan pasca mati, akan tetapi untuk peneguhan diagnosa sebaiknya dilakukan juga pemeriksaan laboratorium terutama isolasi virus dan uji-uji serologis supaya dapat menentukan agen penyebabnya secara pasti. ...
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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