Judul: Profil ekhokardiografi motion-mode anjing kampung pada pemberian kombinasi obat bius xylazine-ketamine dan zolazepam-tiletamine
Abstrak: The purpose of this study is to determine the effect of xylazine-ketamine and zolazepam-tiletamine anaesthetic combination in Indonesian mongrel dog heart using M-mode echocardiography. The study was to conduct in five young female dogs with age of 10±2 months, and weight 10±2.5 kg. Examination were performed to dogs in conscious state or after receiving anaesthesi combination intra muscular. The instrument used in this study were ultrasound device (Sonoscope SSI-1000) and convex type transduser with small footprint scanner of 3-7.5 MHz frequency with animal¢s position in right lateral recumbency for short axis view. Eleven parameter of M-mode echocardiography measured were, interventricular septum (IVS), left ventricular internal dimension (LVID), left ventricular wall (LVW) at end-diastole (d) and end- systole (s), stroke volume (SV), cardiac output (CO), ejection time (ET), fractional shortening (FS) and heart rate( HR ). From this study, we found that anaesthetie combination of xylazine-ketamineand causes reduction of parameter HR, LVWd and LVWs, SV, CO, and increation of parameter LVIDd and LVIDs, ET and FS, but the opposite combination of ZT causes increation of HR, LVWd and LVWs, SV, CO, and reduction on parameter LVIDd and LVIDs, ET and FS. The result showed that the combination of xylazine-ketamineand injection have lower values at parameter HR, LVW, SV, and CO (P < 0,05), and higher values at parameter LVID, ET and FS (P < 0,05) and combination of zolazepam-tiletamine injection have higher values at parameter HR, LVWDd and LVWS, SV, CO (P < 0,05), and lower values at parameter LVIDd and LVIDs, ET and FS (P < 0,05)
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Judul: Profil Ekhokardiografi M-mode Anjing Kampung pada Pemberian Kombinasi Obat Bius Xylazine- Ketamine dan Zolazepam-Tiletamine
Abstrak: The purpose of this study is to determine the effect of xylazine-ketamine and zolazepam-tiletamine anaesthetic combination in Indonesian mongrel dog heart using M-mode echocardiography. The study was to conduct in five young female dogs with age of 10±2 months, and weight 10±2.5 kg. Examination were performed to dogs in conscious state or after receiving anaesthesi combination intra muscular. The instrument used in this study were ultrasound device (Sonoscope SSI-1000) and convex type transduser with small footprint scanner of 3-7.5 MHz frequency with animal¢s position in right lateral recumbency for short axis view. Eleven parameter of M-mode echocardiography measured were, interventricular septum (IVS), left ventricular internal dimension (LVID), left ventricular wall (LVW) at end-diastole (d) and end- systole (s), stroke volume (SV), cardiac output (CO), ejection time (ET), fractional shortening (FS) and heart rate( HR ). From this study, we found that anaesthetie combination of xylazine-ketamineand causes reduction of parameter HR, LVWd and LVWs, SV, CO, and increation of parameter LVIDd and LVIDs, ET and FS, but the opposite combination of ZT causes increation of HR, LVWd and LVWs, SV, CO, and reduction on parameter LVIDd and LVIDs, ET and FS. The result showed that the combination of xylazine-ketamineand injection have lower values at parameter HR, LVW, SV, and CO (P < 0,05), and higher values at parameter LVID, ET and FS (P < 0,05) and combination of zolazepam-tiletamine injection have higher values at parameter HR, LVWDd and LVWS, SV, CO (P < 0,05), and lower values at parameter LVIDd and LVIDs, ET and FS (P < 0,05)
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Judul: Nanokristalin Pirit (FeS2) sebagai Material Semikonduktor Fotovoltaik.
Abstrak: Teknologi fotovoltaik adalah suatu proses yang dapat mengubah sinar matahari menjadi energi listrik dengan media semikonduktor. Penggunaan sel surya untuk fotovoltaik hanya dapat mengonversi radiasi matahari menjadi energi listrik kurang dari 20%. Efisiensi akan meningkat ketika material semikonduktor untuk fotovoltaik dibuat menjadi ukuran nano. Pirit merupakan salah satu material semikonduktor fotovoltaik yang memiliki energi pita celah (Eg) dalam kisaran 0.8–0.95 eV. Energi pita celah tersebut terbukti meningkat ketika disintesis dengan metode hidrotermal menggunakan beragam molar [S]:[Fe] pada suhu 200 °C dalam 24 jam. Nilai energi pita celah yang dihasilkan adalah 1.58–2.073 eV. Ukuran nanokristalin pirit yang dihasilkan berada pada kisaran 21.04–58.77 nm menurut data Particle Size Analyzer. Besarnya ukuran nanokristal pirit yang tumbuh kurang dari 50 nm merupakan poin penting untuk aplikasi fotovoltaik.
Keyword: Hidrotermal, fotovoltaik, nanokristal, pirit