Judul: Studi Kasus Kelainan Regio Abdomen Anjing Melalui Interpretasi Radiografi di Klinik Hewan MyVets Kemang dan Bumi Serpong Damai
Abstrak: The aim of this study was to analyze abnormality and disease in abdomen region of dog by radiographic interpretation. The study was done by radiographic interpretation and confirmed with medical record that was taken from MyVets Animal Clinic Kemang and Bumi Serpong Damai. Interpretation was done by seven of basic Roentgen signs with changes of size, shape, number, location, margination, opacity, and alteration of organ function. Interpretation result was grouped by three system organ which are gastrointestinal, urinary, and reproduction system. Nine cases were taken for further discussion and compared it with literature. Abnormalities that were found in gastrointestinal system are constipation with prolaps ani, gastric foreign body, and bloating. Abnormalities that were found in urinary system are urolithiasis in urethra, renal failure, and nephromegaly with urolithiasis. Abnormalities that were found in reproduction system are dystocia fetalis, mummification, and pyometra.
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Judul: Studi Kasus Interpretasi Radiografi Gangguan Sistem Kardiovaskular Pada Anjing Di Klinik Hewan My Vets Bumi Serpong Damai Dan Kemang Selatan
Abstrak: This study was aimed to present radiographic interpretation of cardiovascular system disorder in dogs at My Vets Animal Clinic Bumi Serpong Damai Tangerang and Kemang Selatan. Radiographical interpretation was using Röntgen pictures from 7 dogs including their medical records. Parameters examined were VHS (Vertebrae Heart Size) measurement, dorsoventrally or ventrodorsally heart size to thorax cavity measurement, and enlargement of heart chamber. Furthermore, the other parameters that also performed in this study were enlargment of main blood vein measurement which was aorta, main pulmonary artery, caudal of vena cava, and lungs surface scoring. Main changes found were pulmonary vein dilatation which was found in all cases. Alveolar pattern change, air bronchogram, was found in 86% cases of lungs surface scoring. Main vein dilatation cases were 56% of all cases examined. Heart enlargement was found in 2 dogs. Along with those findings, another radiographic changes were also found with variying frequency. All radiographic findings on the cardiovascular system disorder described above lead to make a specific diagnosis and differential diagnosis of certain diseases that were discussed in depth in this study.
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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