Judul: Nilai Referensi Motion Mode (M-Mode)  Echocardiography  Normal Pada Anjing Lokal  (Canis Lupus Familiaris)
Abstrak: Studi ini bertujuan untuk mengetahui dimensi intrakardiak, ketebalan dinding dan penghitungan yang diturunkan dari pengukuran M-mode echocardiography pada jantung anjing kampung normal dan membandingkannya dengan temuan literatur. Metode dilakukan secara langsung dengan dilakukan pemeriksaan echocardiography terhadap anjing. Dimensi jantung serta pengukuran M-mode lainnya dapat digunakan sebagai panduan dalam menentukan kerja jantung, menentukan diagnosa dan juga prognosa suatu penyakit. Meskipun pengukuran M-mode echocardiography ini diketahui sangat berguna, namun penelitian yang dilakukan dalam echocardiography anjing kampung masih sangat kurang. Sehingga perlu dilakukan penelitian untuk mengetahui keadaan normal organ kardiovaskular anjing kampung. Adapun hasil penelitian ini dapat dijadikan sebagai bahan acuan perbandingan pemeriksaan dan diagnosa penyakit jantung, serta dapat berguna sebagai studi untuk mengetahui keadaan normal organ kardiovaskular pada anjing kampung.
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Judul: Karakteristik Aliran Darah Katup Atrio-Ventrikular Dinilai dengan Pulsed wave Doppler Echocardiography di Anjing Kampung Normal (Canis lupus familiaris).
Abstrak: The purpose of this study is to determine blood flow characteristics at the atrio-ventricular valve i.e. mitral and tricuspid valves in normal mongrel Indonesian dog using transthoracic pulsed wave Doppler (PWD) echocardiography. The study was conducted in eight adult dogs consisting of three males and five females with an average age of 3.5 years, and average weight 12 kg. Transthoracic PWD echocardiography examination were performed on dogs in a conscious state/unsedated and the animal's position in right lateral recumbency. The instrument used is an ultrasound device (Sonoscape SSI-1000) and convex type transducer with small footprint scanner of 3.7-5.0 MHz frequency. Seven parameters of PWD measured were heart rate/HR, velocity annulus/Va, velocity ejection/Ve, velocity time integral/VTI, mean pressure gradient/MPG, pulsatility index/PI, and ratio systole-diastole or S/D. Based on the measurement of seven parameters in both atrio-ventricular valves showed that in general the blood flow characteristics values of the mitral valve were higher than tricuspid valves (P> 0.05). While the female dogs have a higher value when compared with male dog (P>0.05).
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Judul: Katalis Eterifikasi Gliserol Berbasis Poli–(asam stirena sulfonat) dari Limbah Styrofoam.
Abstrak: Styrofoam waste can be converted to poly–(sulfonate styrene acid) (PSSA) that can be used as catalyst. The objective of this research is to get PSSA that can catalyze the etherification of glycerol and benzyl alcohol. The styrofoam waste was converted to PSSA by reacting with H2SO4 98% (as sulfonation agent) and P2O5 (as sulfonation catalyst) at 40 °C for 6 hours. Characterizations of PSSA included functional groups, sulfonation levels, water swelling, and thermal stability. The yield of PSSA was 40-55%. The success of sulfonated polystyrene was shown by –SO3H group absorption at 1157.29 cm-1. Etherification of glycerol and benzyl alcohol using PSSA catalyst was conducted at 110 °C for 12 hours. The conversion in producing mono–benzyl ether glycerol was 8.10%, 1,3–dibenzyletherglycerol 2.60%, and dibenzyl ether 9.80%. Therefore, the PSSA can be used as etherification catalyst.
Keyword: benzyl alcohol, etherification, glycerol, polystyrene, PSSA