Judul: Physiological Parameters of Pig (Sus scrofa domestica) Post-Induced Cardiac Infarction with Total Occlusion in Circumflex Artery
Abstrak: Penyakit kardiovaskular adalah penyebab utama kematian di dunia. Sistem kardiovaskular babi dapat digunakan dalam penelitian infark miokardium karena memiliki kemiripan anatomi dan fisiologi dengan manusia. Pemeriksaan parameter fisiologis selama pembedahan merupakan cara cepat dan efisien untuk memantau kondisi pasien, mengidentifikasi masalah, dan mengevaluasi respons pasien terhadap intervensi bedah. Penelitian ini bertujuan mengetahui parameter fisiologis terkait nilai frekuensi napas, frekuensi jantung, dan suhu tubuh 15 menit sebelum dan sesudah induksi oklusi total arteri circumflexa dengan cara ligasi pada babi. Babi yang digunakan berjumlah lima ekor dengan jenis kelamin empat jantan satu betina bobot 51–55 kg. Frekuensi napas dan jantung dipantau dari patient monitor serta suhu tubuh diukur dari termometer digital. Data yang diperoleh diolah secara deskriptif. Frekuensi napas dan frekuensi jantung 15 menit pascainduksi infark miokardium menunjukkan rata-rata terjadinya penurunan tetapi masih berada dalam rentang nilai normal, sedangkan suhu tubuh menunjukkan hasil lebih rendah dari rentang nilai normal meskipun terjadi peningkatan. Hal ini diduga disebabkan perubahan fisiologis, aktivitas saraf, dan hormon., Cardiovascular disease is the leading cause of death in the world. Swine cardiovascular system can be used in the study of myocardial infarction because it has anatomical and physiological similarities to humans. Physiological parameters examination during surgery is a quick and efficient way to monitor the patient's condition, identifying problems, and evaluate the patient's response to surgical intervention. This study aims to determine the physiological parameters related to the value of respiratory rate, heart rate, and body temperature 15 minutes before and before induction of total occlusion of the circumflex artery by ligation in pigs. The number of pigs used were five with the sex of four males and one female weighing 51–55 kg. Respiratory and heart rates were monitored from the patient monitor and body temperature was measured from digital thermometer. Obtained data were processed descriptively. The respiratory and heart rate 15 minutes after the induction of myocardial infarction showed an average decrease within the normal range, while body temperature showed a lower result than the normal value range despite an increase. This has been thought due to physiological changes, neural activity, and hormones.
Keyword: babi, frekuensi napas, frekuensi jantung, infark miokard, suhu tubuh, body temperature, heart rate, respiratory rate, myocardial infarction, pig

Judul: Erythrogram Profile of Pig (Sus scrofa domestica) Before and After the Myocardial Infarction Condition with total occlusion of the circumflex artery
Abstrak: Penelitian ini bertujuan mengetahui gambaran eritrogram babi (Sus scrofa domestica) sebagai hewan model pada keadaan sebelum dan sesaat setelah kondisi infark miokard dengan oklusi total arteri sirkumfleks. Babi dengan jumlah 9 ekor dilakukan aklimatisasi. Hewan dipuasakan minimal 12 jam sebelum dilakukan operasi. Babi dianastesi menggunakan ketamin 10% (dosis 0,5 mg/kg) dan xylazine 2% (1 mg/kg). Operasi pembuatan infark miokard dilakukan oklusi total dengan cara ligasi pada cabang proksimal dari arteri sirkumfleks dengan jahitan non- absorbable polypropylene 5.0 monofilament. Hambatan aliran darah dilakukan dengan rentang waktu 2 - 3 jam. Pengambilan darah dilakukan sebelum dan sesaat setelah terjadinya infark jantung dengan masing - masing pengambilan sebanyak ± 3 ml dilakukan melalui vena jugularis kemudian dimasukkan ke dalam vacutainer yang berisi antikoagulan K3 Ethylenediaminetetraacetic acid (K3EDTA). Sampel darah dilakukan pemeriksaan eritrogram menggunakan hematology analyzer terhadap jumlah eritrosit, kadar hemoglobin, nilai hematokrit, dan indeks eritrosit (MCV, MCH, dan MCHC). Hasil penelitian menunjukkan rata-rata eritrosit, hemoglobin, MCV, MCH, dan MCHC sebelum dan setelah infark miokardium (2 – 3 jam setelah oklusi total arteri sirkumfleks) masih berada pada nilai kisaran normal, sedangkan rata-rata hematokrit berada dibawah kisaran nilai normal. Satu ekor babi ditemukan sebelum dan setelah infark memiliki hasil yang merujuk pada terjadinya anemia mikrositik hipokromik., The objective of this research was to determine the profile of the erythrogram of pigs (Sus scrofa domestica) as animal models in the conditions before and shortly after the myocardial infarction with total occlusion of the circumflex artery. A total of 9 pigs were acclimatized. Pigs were fasted for at least 12 hours before surgery. Pigs were anasthetized using 10% ketamin (0.5 mg/kg dose) and 2% xylazine (1 mg/kg). Myocardial infarction surgery was performed in total occlusion by ligation of the proximal branch of the circumflex artery with a non-absorbable polypropylene 5.0 monofilament suture. Blood flow resistance occurs with a period of 2 - 3 hours. ± 3 ml of blood was drawn through the jugular vein and then put into a vacutainer containing the anticoagulant K3 Ethylenediaminetetraacetic acid (K3EDTA). The blood sample was then examined for erythrogram using a hematology analyzer on the number of erythrocytes, hemoglobin level, hematocrit value, and erythrocyte index (MCV, MCH, and MCHC). The mean values of erythrocyte, hemoglobin, MCV, MCH, and MCHC parameters before and after myocardial infarction (2 – 3 hours after the total occlusion of the circumflex artery) were at normal values. In contrast to the average hematocrit which is below the normal value. One of the pig show results that refer to the occurrence of microcytic hypochromic anemia.
Keyword: Eritrosit, hematokrit, hemoglobin, Sus scrofa donestica, infarction

Judul: Pembuatan Film Tipis Cu2ZnSnS4 sebagai Lapisan Penyerap Cahaya pada Sel Surya Menggunakan Metode Elektrodeposisi
Abstrak: Thin film of Cu2ZnSnS4 (CZTS) is an alternative semiconductor used as light absorber layer on solar cell. CZTS can replace silicon that commonly used as commercial semiconductor. The advantage of using CZTS as absorber layer is due to the abundance of its chemical composer on earth, and its high value of absorption coefficient. The absorber layer was made by using electrodeposition method on ITO glass substrates. The films were deposited at room temperature using potentiostatic mode with a potential of –1.05 V for 30, 45, and 60 minutes. After that, the films were annealed at two different temperatures, 180 ºC and 500 °C, for 45 minutes in N2/H2S atmosphere. Based on X-ray diffraction analysis, the polycrystalline thin film obtained fall into kesterite crystal phase. This type of crystal was obtained when the CZTS was annealed at 500 °C in H2S/N2 atmosphere. The value of optical band gap energy for the CZTS thin film was 2.2 eV with the film thickness about 1.228–6.366 μm. The sample of CZTS with electrodeposition time of 45 minutes and annealing temperature of 500 °C showed the best result and in conformity with absorber layers criteria for solar cells.
Keyword: semiconductor, ITO glass, CZTS thin film, electrodeposition