Judul: Isolasi Senyawa Aktif dari Bangle Hantu (Zingiber ottensii Va) yang Berpotensi Sebagai Antiobesitas.
Abstrak: Obesitas dalam beberapa tahun terakhir meningkat pada tingkat yang mengkhawatirkan dan menjadi masalah kesehatan di seluruh dunia. Obesitas adalah kelebihan berat badan sebagai akibat dari penimbunan lemak tubuh yang berlebihan, hal ini disebabkan oleh asupan lemak dalam tubuh yang lebih besar daripada jumlah pemanfaatannya sebagai sumber energi. Beberapa penyakit yang dikaitkan dalam obesitas adalah diabetes, hipertensi, osteoarthritis, dan penyakit hati (Yun 2010).
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Judul: Studi Potensi Beberapa Senyawa yang Memiliki Aktivitas Antiobesitas dengan Metode Penambatan Molekul
Abstrak: Obesitas merupakan masalah kesehatan global yang dapat disebabkan oleh faktor genetik. Salah satu cara menentukan mekanismenya secara genetik adalah dengan analisis interaksi molekuler dari protein FTO (Fat Mass and Obesity Associated Protein) yang dikode oleh gen FTO. Penelitian ini bertujuan menganalisis interaksi penambatan molekul protein FTO (4IE6) dengan berbagai senyawa yang diujikan pada daerah residu asam amino yang berperan penting dalam penghambatan obesitas. Ligan uji adalah asam hibiskus, asam klorogenat, capsaicin, kurkumin, bisdemetoksikurkumin, dan demetoksikurkumin. Ligan pembanding adalah senyawa orlistat. Hasil yang diperoleh menunjukkan bahwa kurkumin memenuhi semua aturan Lipinski, memiliki energi bebas Gibbs yang tinggi sebesar -9.2 kkal/mol, memiliki nilai Ki yang rendah sebesar 0.1802 μM dan kemiripannya terhadap orlistat mencapai 65 %. Residu asam amino yang paling berperan dalam sisi pengikatan ligan terhadap reseptor adalah Arg-322, Tyr-108, Tyr-295, dan Val-228. Berdasarkan penambatan molekul, semua senyawa selain asam hibiskus memiliki potensi yang baik sebagai antiobesitas melalui mekanisme inhibisi protein FTO.
Keyword: antiobesitas, docking, kurkuminoid, ligan, protein FTO

Judul: Thermal Characteristics and Dynamics of Tropical Cyclone over Western North Pacific Ocean: A Case Study of Typhoon Songda (Chedeng) 2011
Abstrak: The frequent occasion of Tropical Cyclone (TC) over Western North Pacific (WNP) Ocean lies from 10˚N to 26˚N and 121˚E to 170˚E. Sources of TC development come from warm ocean temperature where latent heat is released during condensation processes and subsequently concentrated in the boundary layer. Relative humidity at 850-700 hPa is responsible to produce the most intense storm. Meanwhile, weak vertical wind shear between 850-200 hPa is one of the dynamical factors that lead to the development of TC. Pressure level of 850-200 hPa is chosen to minimize the thermodynamic effect in the lower troposphere. Typhoon Songda (Chedeng in the Philippines) or TSC lasted from May 18th to 30th, 2011 and strengthened into powerful Super Typhoon stage between May 24th and 27th. Long curving track and the exhibition of all sequences of TC life cycle, TSC is then considered as an ideal case of TC. The objective of the study with case of TSC is to investigate the role of thermal characteristics and dynamics on TC intensity. The research is carried out by using Advanced Research of Weather Research and Forecasting model (WRF ARW model) version 3.3. Two domains are employed in the model. The first domain situate from 02˚N to 40˚N and 118˚E to 149˚E and cover spatial resolution () of 33.1 km. The second domain situate from 09˚N to 27˚N and 119˚E to 132˚E with of 11 km. Timestep of the model () is 120 seconds. The model is supported by the following physical parameterization, i.e., Yonsei University Scheme (YSU) in the boundary layer, Kain-Fritsch scheme (KF) in the cumulus, and WRF Single-Moment 3-class scheme in the microphysics. Initial meteorological condition prior to the formation of the cyclone is generated using WRF ARW standard-release model. Sensitivity of the model output is obtained from a selected single-parameter change scenarios, namely, 10 % to 20 % decrease and increase of wind shear initial data at 850-200 hPa, and by 10 % to 20 % decrease of relative humidity initial data at 850-700 hPa. The result showed that the negative correlations between wind shear and intensity are found in wind shear scenarios. Wind shears of 10 ms-1 which lead to strengthening of the wind intensity in the early period of Typhoon development are found in wind shear scenarios. The effect of wind shear changes on wind intensity is statistically significant in the 20 % wind shear scenarios. During mature stage, weak wind intensity occurred when wind shear increase as given in the WRF standard-release and the 20 % decreasing scenario. Different situation is found in the 20 % increasing scenario where wind shear tend to weak and lead to strong wind intensity at this stage. Meanwhile, the reduction of moisture supply at 850-700 hPa resulting from 20 % decreasing relative humidity play a major role in the weakening of wind intensity and reduces mechanical energy of the cycle process as much as 300 J kg-1.
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