Judul: Stephanofilariasis pada Sapi di Kecamatan Bungus Teluk Kabung Sumatra Barat
Abstrak: Prevalensi dari infestasi Stephanofilaria sp pada sapi sangat tergantung pada keadaan suatu daerah diantaranya kelembaban, suhu dan sistem pemeliharaan sapinya. Untuk mengetahui seberapa jauh infestasi Stephanofilaria sp serta penyebarannya pada sapi di Kecamatan Bungus Teluk Kabung, Sumatra Barat, telah dilakukan observasi secara klinis dan meneliti faktor lingkungan dan corak pertanian didaerah ici juga observasi terhadap infestasi lalat pada luka-luka serta pengobatannya.
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Judul: Prevalensi parasit darah (Babesia sp. Theileria sp.) pada ternak sapi rakyat di lima kecamatan, Kabupaten Lampung Tengah
Abstrak: Sampel darah diambil dari 178 sapi lokal (Bali, Peranakan Ongole, Brahman, Prambon dan Brangus) yang berumur 1-7 tahun di lima kecamatan wilayah Kabupaten Lampung Tengah Propinsi Lampung dari bulan Agustus 2001 sampai Maret 2002. Sampel darah diperiksa untuk mengetahui adanya parasit darah yaitu Babesia sp. dan Theileria sp. Sampel darah diwarnai dengan pewarna Giemsa dan diperiksa dengan menggunakan mikroskop. Hasil yang didapat menunjukkan bahwa hewan yang terinfeksi Babesia sp. dan Theileria sp. rata-rata sebesar 0,356 % dan 2,08%, dengan persentase sapi yang terinfeksi Babesia sp. paling tinggi ditemukan di Kecamatan Punggur yaitu sebesar 0,150% dan paling rendah di Kecamatan Seputih Mataram sebesar 0,026 %. Persentase sapi yang terinfeksi Theileria sp. paling banyak di Kecamatan Sendang Agung yaitu sebesar 0,845 %dan paling sedikit di Kecamatan Seputih Raman sebesar 0,144 %. Managemen diperkirakan faktor utama yang mempengaruhi prevalensi dibandingkan dengan faktor iklim….
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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