Judul: Simulasi Curah Hujan Kalimantan Menggunakan Regional Climate Model 4 (RegCM4) saat El Nino Southern Oscillation (ENSO)
Abstrak: The skill of Regional Climate Model 4 (RegCM4) in simulating rainfall is evaluated through a comparison of observations, using Asian Precipitation-Highly Resolved Observational Data Integration towards Evaluation (APHRODITE), and Climate Research Unit (CRU), and 19-year simulation period of 1982-2000 in Kalimantan. The analysis includes how RegCM4 capture the rainfall type, the rainfall characteristics when ENSO, the error and the diversity of data, and dominant cycles in Kalimantan. The analysis is continued with a calculation of Maximum Dry Spell Length (MDSL). It is found that RegCM4 produces overestimated value, but it is capable in capturing rainfall type, rainfall characteristics when ENSO, and dominant cycles in Kalimantan. The dominant cycles in influencing Kalimantan rainfall are ENSO and Annual Oscillation. The main model weakness is an overestimation of precipitation in mountainous regions. It is proven by the value of Root Mean Square Error (RMSE) and standard deviation is higher in mountainous regions (>500 m). Furthermore, based on simple correlation, the model is better in simulating monthly resolution than daily resolution. It is evidenced by the correlation up to 0.8 in monthly resolution. In calculating MDSL, RegCM4 reproduces the same pattern (the higher MDSL when El Nino, and lower value when La Nina) with APHRODITE.
Keyword: Bogor Agricultural University (IPB), MDSL., mountainous regions, APHRODITE

Judul: Pendugaan Curah Hujan Musim Kemarau Menggunakan Data Southern Oscillation Index dan Suhu Permukaan Laut NINO3.4 dengan Metode Support Vector Regression
Abstrak: Various climate disasters in Indonesia are mostly related to the El Nino Southern Oscillation (ENSO) phenomenon. The variability of climate especially rainfall is strongly related to this phenomenon. Southern Oscillation Index (SOI) and sea surface temperature anomaly (SSTA) at Nino3.4 region are two common indicators used to monitor phenomenon of El Nino and La Nina. Furthermore, SOI and NINO SSTA can be the indicator to find the rainfall probability in a particular season, related to the existing condition of climate irregularities. This research was conducted to estimate the rainfall during dry season at Indramayu district. The basic method used in this study was Support Vector Regression (SVR). Predictors used were SOI and NINO3.4 sea surface temperature (SST) data. The experiments were conducted by comparing the model performance and prediction results. The training set was clustered in advance and then SVR model was generated using RBF kernel based on their clustering result. This research obtained an SVR model with correlation coefficient of 0.76 and NRMSE error value of 1.73
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Judul: Studi Kasus Liver Neoplasia pada Anjing Shih Tzu
Abstrak: Liver neoplasia is the excessive and uncontrolled replication of hepatocytes that forms nodules visible in ultrasonography. The purpose of this study is to study and discuss the characteristic, diagnosis and treatment of liver neoplasm through the interpretation of ultrasonography and hematology in a Shih Tzu dog. Ultrasonography is conducted with a Chison Q8 ultrasound machine with a 5 to 7 MHz frequency convex probe on lateral recumbency. The blood cells, liver enzymes and nodules sizes were the main parameters in this study. The results in the period of three years from 2021 to 2023 were interpreted and supported with secondary data sources. The Shih Tzu dog is 14 years old in the year 2023 with a body weight of 5.21kg. No obvious clinical signs were observed during previous examinations. However, lethargy, vomiting and anorexia were recorded in its latest examination. Thrombocytosis, granulocytosis, high liver enzymes and hypoglycemia, which are some of the neoplastic clinical manifestations were also presented by this patient. Besides, liver neoplasm, spleen neoplasm and biliary sludge were the sonogram findings of this patient. The liver and spleen neoplasm was observed stable, while the biliary sludge volume fluctuated. The treatment strategy recorded is Ondansetron, Samylin®, Ornipural and Ursodeoxycholic acid.
Keyword: Blood biochemistry profile, Hematology, Liver Neoplasia, Shih Tzu, Ultrasonography