Judul: Ripitabilitas sifat kemampuan kuda pacu Indonesia mempertahankan kecepatan berlari
Abstrak: Indonesia racehorse is a domestic animal results of grading up between local mares with Thoroughbred stallion to get a better Indonesia racehorse. Selection of running performance racehorse in Indonesia needs to be done in order to get a racehorse that has good running ability. Performance of Indonesia Racehorse can be estimated by the running speed and ability to maintain these properties. The value of ability to maintain the running speed data used to estimate the ripitability value. The data of running speed at different distances (1200 m, 1400 m, and 1600 m) in each race which was obtained from racing record in PORDASI (Persatuan Olahraga Berkuda Seluruh Indonesia) competition for twelve years, were used to calculated the value of ability to maintain a running speed. Estimated ripitability value used to calculate the value of MPPA (Most Probable Producing Ability). Estimated ripitability of ability to maintain a running speed horse which ran at decreased speed and increased speed are 0,7714 ± 0,0988 and 0,3421 ± 0,2789, respectively. Indonesia Racehorse which has speed decreased could be recommended for sprint type horse while the increased speed horses could be recommended as long distance horse type.
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Judul: Reproductive Performance of Indonesian Racehorses.
Abstrak: Performa reproduksi kuda pacu Indonesia perlu diketahui untuk menentukan strategi efisiensi reproduksi. Penelitian ini bertujuan untuk mengetahui penampilan dan gangguan reproduksi kuda di Indonesia. Selama tahun 2010, tercatat sebanyak 310 ekor kuda pacu indonesia betina diperiksa di berbagai stable yang tersebar di Pulau Jawa dan Pulau Madura, Indonesia. Pemeriksaan kebuntingan dini dilakukan pada hari 18 dan 20 setelah kawin menggunakan ultrasonografi secara perektal. Tingkat keberhasilan kebuntingan mencapai 65,07% (190 ekor) dari satu atau lebih perkawinan (292 ekor). Gangguan kebuntingan yang tercatat adalah kebuntingan kembar sebanyak 6,32% (12 ekor), kematian embrio dini sebanyak 7,37% (14 ekor) dan, abortus sebanyak 1,29% dari 190 kebuntingan. Gangguan sistem reproduksi yang tercatat adalah pyometra sebanyak 1,29% (2 ekor), endometritis sebanyak 15,81% (42 ekor), dan hipofungsi ovari sebanyak 4,52% (13 ekor) dari seluruh kuda yang diperiksa
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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