Judul: Laju Respirasi dan Denyut Jantung Kerbau Dara dengan Pengabutan Kandang Menggunakan Sprinkler Water
Abstrak: Populasi kerbau mengalami peningkatan meskipun di beberapa provinsi perkembangan populasi kerbau mengalami fluktuatif. Iklim di Indonesia merupakan iklim tropis yang ditandai dengan suhu dan kelembapan yang tinggi, sehingga kerbau mengalami stres akibat cekaman panas. Sprinkler water cooling system merupakan salah satu alternatif yang digunakan untuk mengurangi cekaman panas yang dialami kerbau. Penelitian ini bertujuan mengetahui pengaruh pengabutan air terhadap laju respirasi dan denyut jantung dan mengurangi cekaman akibat stres panas. Analisis data yang digunakan dalam penelitian ini adalah analisis deskriptif dengan data primer yang sudah dikumpulkan, kemudian diolah dan dideskripsikan untuk memberikan gambaran yang diperoleh. Pengabutan air berpotensi mengurangi laju respirasi dan denyut jantung akibat stres panas. Potensi tersebut ditunjukan dengan frekuensi denyut jantung dan laju pernapasan turun setelah pengabutan air. Penggunaan sprinkler water dapat mengurangi stres terutama pada siang hari dan menjadi salah satu solusi untuk mengurangi cekaman panas.
Keyword: denyut jantung, kerbau, laju respirasi, pengabutan air

Judul: Physiological Responses to Water Misting Using Water Sprinkler on Dairy Cattle
Abstrak: Peternakan sapi perah di dataran rendah dengan iklim tropis memerlukan rekayasa mikroklimat agar ternak berada pada Temperature Humidity Index (THI) yang mendekati zona nyaman sehingga produktivitas sapi perah meningkat. Penelitian ini bertujuan mempelajari pengaruh pengabutan air dengan sprinkler water terhadap mikroklimat kandang dan respon fisiologis sapi perah. Penelitian dilakukan pada tiga ekor sapi perah selama lima hari di Kandang Sapi Perah J’rami Farm, Desa Kebon Pedes, Kota Bogor. Pengambilan data mikroklimat dan respon fisiologis dilakukan sebelum dan sesudah pengabutan air pada siang hari selama satu jam. Metode analisis yang digunakan adalah uji-T berpasangan untuk variabel mikroklimat kandang dan respon fisiologis, serta Two Way Anova untuk mengetahui perbedaan suhu permukaan tubuh. Hasil penelitian menunjukkan bahwa perlakuan sebelum dan sesudah pengabutan air pada siang hari berbeda nyata (P<0,05). Hasil perlakuan pengabutan air mampu memperbaiki kondisi mikroklimat kandang dan respon fisiologis sapi perah yang ditandai dengan penurunan nilai THI, frekuensi denyut jantung, frekuensi pernapasan, suhu rektal, dan suhu permukaan tubuh., Dairy farming in the lowlands with tropical climate requires microclimate engineering, so the cattleshed are at Temperature Humidity Index (THI) which is close to the comfort zone and the productivity of dairy cattles increases. This study aims to study the effect of misting water with sprinkler water on the cattleshed microclimate and the physiological response of dairy cattles. The study was conducted on three dairy cows for 5 days located at the J'rami Farm Dairy Cattle, Kebon Pedes Village, Bogor City. Microclimatic data collection and physiological response were carried out before and after the misting water during the day for one hour. The analytical method used was a paired T-test for cattleshed microclimate and physiological response variables, and Two Way Anova to determine differences in body surface temperature. The results showed that the treatment before and after misting water during the day was significantly different (P<0.05). The results of the misting water treatment were able to improve the cattleshed conditions and the physiological response of dairy cattles which was marked by a decrease in the value of THI, heart rate frequency, respiratory frequency, rectal temperature, and body surface temperature.
Keyword: Mikroklimat, pengabutan air, respon fisiologis, sapi perah, sprinkler water

Judul: Separation of Isotropic and Anisotropic Tensor for MAPbI3 Perovskite Crystal Using Group Theory and Simplified Bond Hyperpolarizability Model.
Abstrak: Nonlinear phenomena occur when the electric field from a coherent and high-intensity light source interacts with the atoms in the material so that it oscillates anharmonically along the bond. Optical nonlinearities can be used as a method for analyzing the structure of optoelectronic materials such as perovskite. MAPbI3 is an optoelectronic material that has advantage in conservation efficiency, at room temperature MAPbI3 has an orthorhombic structure with C2v group points on the surface and D4h in the bulk perovskite section. This research separates the isotropic and anisotropic susceptibility tensors in the case of the second harmonic generation and the third harmonic generation and analyzes their contribution to total polarization. there are 6 isotropic non-zero tensor components and 13 non-zero anisotropic components in the C2V rank-3 structure and zero isotropic and anisotropic components in the D4h rank-3 structure. whereas there are 21 isotropic non-zero components at rank-4 of both structures and 20 and 8 non-zero anisotropic components at rank-4 surface and bulk perovskite. the contribution of 2nd order total polarization only occurs in anisotropic while for 3rd order, polarization isotropic and anisotropic contributing to total polarization
Keyword: Anisotropi, Isotropic