Judul: Leucocytozoonosis Pada Ayam Ras di Sumatera Utara
Abstrak: Di Propinsi Sumatra Utara penyakit leucocytozoonosis pada ayam ras yang disebabkan oleh Leucocytozoon caulleryi dilaporkan oleh Balai Penyidikan Penyakit Hewan wilayah I Medan untuk pertama kali pada bulan Oktober 1982. Penyakit ini mula-mula ditemukan pada ayam broiler berumur 2-3 bulan di Kampung Purwodadi, Kecamatan Medan Sunggal, Kabupaten Deli Serdang. Pada penyidikan terhadap penyakit leucocytozoonosis ini dibeberapa peternakan ayam ras di Kabupaten Deli Serdan Kotamadya Medan ternyata bahwa penyakit ini menimbulkan mortalitas sebesar 20% dan morbiditas 50-100%. Cara mendiagnose yang dipergunakan masih perlu ditingkatkan untuk memperoleh angka mortalitas dan morbiditas yang lebih cermat. Pemakaian gel precipitation test dianjurkan. Penyakit ini diketahui menyerang ayam ras yang dipelihara pada daerah persawahan, daerah yang penuh dengan semak belukar dan keadaan tanah yang lembab dan basah serta banyak air yang tergenang. Ayam yang terserang berumur 2-3 bulan. Diduga penyakit ini ditularkan melalui agas (Culicoides).
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Judul: IPB (Bogor Agricultural University)
Abstrak: Satu penelitian untuk mengetahui spesies Lehcocytozoon yang menginfeksi ayam ras dan agam kampung dengan cara mengamati gametosit dewasanya di dalam usapan darah ayam, dilakukan di Kabupaten Bogor, Ksbupaten. Cianjur, Kabupaten Bandung di Propinsi Jawa Barat; di Kotamadya Semarang dan sebagian Kabupaten Semarang, Kabupaten Magelang, Kotamadya Surakarta dan sebagian Kabupaten Karanganyar di Propinsi Jawa Tengah; di Kotamadya Surabaga dan Kabupaten Malang di Propinsi Jawa Timur; dan di Kabupaten Gianyar, Propinsi Bali.
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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