Judul: Epivag Sebagai Penyebab Kegagalan Reproduksi Dan Penanggulangannya Pada Sapi
Abstrak: "Epivag" merupaka suatu penyakit viral yang menyerang organ reproduksi baik pada sapi jantan maupun betina, disebabkan oleh virus dan hanya terdapat di benua Afrika. Nampaknya sapi-sapi sialng Inggris di Afrika sangant peka terhadap penyakit tersebut. Mengingat bahwa sapi-sapi silang Inggris sudah banyak di impor ke Indonesia, maka perlu diperhitungkan kemungkinan penyebaran penyakit tersebut di Indonesia.
Keyword: 

Judul: Beberapa Bentuk Keadaan Patologik Penyebab Kegagalan Reproduksi Pada Sapi jantan
Abstrak: Fungsi pejantan selain menyediakan sumber semen fertil dalam arti hidup, aktip dan potensial untuk membuahi pada kondisi dewasa alamiah, baik dari segi kualitas maupun kuantitas. Beberapa faktor yang perlu diperhatikan untuk menentukan tingkat kesuburan pada sapi jantan adalah (1) produksi spermatozoa, (2) kelangsungan hidup dan kapasitasi dari spermatozoa, (3) keinginan sexual dan (4) kemampuan untuk kawin (Hafez, 1974). Beberapa keadaan patologi seperti seminal vesikulitis, orchitis dan epididymitis sering ditemukan dalam mempengaruhi tingkat kesuburan sapi jantan. Orchitis Paling umum disebabkan oleh Br. abortus disamping Mycobacterium tuberculosis, Coryne pyogenes dan streptococcus spp. Klasifikasi orchitis (1) Orchi- tis intertisial atau intertubular, (2) Orchitis intratubular atau nekrotik. Sympton terjadi bersamaan dan disertai dengan gangguan umum pada testes yang terserang; skrotum bengkak dan apabila dipalpasi terasa panas dan sakit. Diagnosa didasarkan atas perubahan pada testes dan semen. Pengobatan dengan antibiotika, jika terjadi orchitis akut unilateral dilakukan pembedahan dengan membuang testes yang terserang sehingga testes di sebelahnya yang masih normal dapat terhindar dari degenerasi. ...
Keyword: 

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