Judul: Karakteristik Fisik dan Antimikroba Selulosa Mikrobial yang Mengandung Ekstrak Kopi Robusta sebagai Pembalut Luka Primer.
Abstrak: Selulosa mikrobial merupakan selulosa yang diperoleh dari biosintesis glukosa Acetobacter xylinum yang besifat nontoksik, tidak menimbulkan alergi, kuat tarik tinggi, biodegradable, biocompatible, mampu menyaring bakteri, mempunyai daya absorbsi yang tinggi, dan mampu mendonasikan cairan. Ekstrak kopi robusta mengandung senyawa polifenol sebagai antioksidan dan mempunyai sifat antibakteri terhadap Staphylococcus aureus. Selulosa mikrobial dan ekstrak kopi robusta dapat dijadikan sebagai bahan pembalut luka primer dengan menjaga suhu dan kelembaban di sekitar luka. Tujuan penelitian ini adalah mengetahui karakteristik fisik dan antimikrobial film selulosa mikrobial yang mengandung ekstrak kopi robusta sebagai pembalut luka primer. Pembalut luka dibuat dengan penyisipan ekstrak kopi robusta non-dekafeinasi dan dekafeinasi dengan konsentrasi (b/v) 22.5%, 45%, dan 90% dalam etanol 75%. Peningkatan konsentrasi ekstrak kopi robusta non-dekafeinasi dan dekafeinasi yang dilarutkan dalam etanol 75% dapat mengakibatkan terjadinya peningkatan kemampuan absorbsi cairan, dan daya hambat bakteri Staphylococcus aureus, serta penurunan kemampuan donasi cairan. Berdasarkan penampakan dan tekstur pembalut luka, serta tinjauan efek kafein dalam penyembuhan luka, pengunaan ekstrak kopi dekafeinasi menunjukkan karakteristik lebih baik sebagai pembalut luka primer.
Keyword: selulosa mikrobial, ekstrak kopi robusta, pembalut luka primer

Judul: Physicochemical Characteristics of Shampoo with Lanolin Active Ingredients and Robusta Coffee (Coffea canephora)
Abstrak: Lanolin (Adeps lanae) merupakan bahan dasar pembuatan produk kecantikan yang bisa dikombinasikan dengan kopi robusta (Coffea canephora) untuk membuat sebuah produk sampo. Penelitian ini bertujuan menganalisis pengaruh lanolin yang dikombinasikan dengan ekstrak ampas kopi robusta pada sampo. Pengujian meliputi uji pH, viskositas, daya busa dan kadar air. Penelitian yang dilakukan menggunakan rancangan acak lengkap (RAL) pada setiap pengujian yaitu pra-penelitian dan penelitian dengan masing-masing konsentasi lanolin 0,5%, 1% dan 1,5%, serta ekstrak ampas kopi 2%, 4%, dan 6%. Hasil pra-penelitian menunjukan bahwa penambahan lanolin pada formulasi sampo berpengaruh nyata (p<0,05) terhadap nilai pH, viskositas dan daya busa tetapi tidak berpengaruh nyata terhadap kadar air. Hasil penelitian penambahan kombinasi ekstrak ampas kopi dan lanolin berpengaruh nyata (p<0,05) terhadap nilai pH dan viskositas tetapi tidak berpengaruh nyata terhadap daya busa dan kadar air. Formulasi terbaik pada sampo lanolin dengan kombinasi ekstrak ampas kopi yaitu pada taraf penambahan lanolin 1% dan ekstrak ampas kopi 4%.
Keyword: coffee, lanolin, physicochemical properties, sampoo.

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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