Judul: Isolasi dan Identifikasi Bakteri Penyebab Mouthrot  Disease pada Ular Sanca mas (Leipyton albertisii) serta Pengujian Sensitifitasnya terhadap Antibiotika
Abstrak: Mouthrot disease merupakan penyakit yang sering menyerang ular. Biasanya penyakit ini selalu berakhir dengan kematian, setelah 2-3 bulan pasca infeksi atau sekitar ± 1 bulan setelah terlihat gejala, apabila tidak ditangani dengan tepat dan benar. Tujuan penelitian ini adalah untuk mengetahui jenis bakteri yang menyebabkan mouthrot disease pada Leiopython albertisii sehingga dapat diketahui antibiotika yang tepat untuk mengatasinya. Spesimen diambil dari plaque pada Leiopython albertisii yang terkena mouthrot disease. Spesimen selanjutnya dibiakkan pada Mac Conkey agar dan Blood agar sehingga diperoleh 5 koloni terpisah, selanjutnya dilakukan pewarnaan gram, uji motilitas, oksidase dan katalase untuk menentukan genus bakteri yang diidentifikasi. Untuk menentukan spesies dilakukan sejumlah uji biokimia.Uji antibiotika dilakukan dengan metode Kirby-Bauer. Dari identifikasi di laboratorium ditemukan empat jenis bakteri gram negatif yang menyebabkan mouthrot disease yaitu Pseodomonas flourescens, Pseudomonas aeruginosa, Proteus sp, dan Aeromonas aerogenes serta satu jenis bakteri gram positif yang merupakan mikroflora normal mulut yaitu Staphylococcus sp. Suspensi bakteri tersebut resisten terhadap kanamisin dan streptomisin pada dosis 10 ppm dan sensitif terhadap enrofloksasin 5 ppm.
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Judul: lsolasi dan ldentifikasi Bakteri Penyebab Mouth Rot Disease pada Ular Python amethystinus serta Pengujian Sensitifitasnya terhadap Antibiotika.
Abstrak: Mouth rot disease merupakan suatu gejala dari infeksi sistemik pada reptil. Dari berbagai gejala yang ada, penyakit ini dicirikan dengan adanya perkejuan kuning atau abu-abu kekuningan pada jaringan lunak gusi di dalam mulut yang diikuti erythema dan peningkatan saliva. Mouth rot biasanya banyak ditemukan pada beberapa jenis ular dan kadal dan kadang pada kura-kura.
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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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