Judul: Gambaran Elektroforesis Plasma Protein Darah Sapi Peranakan Ongole dari Rumah Potong Hewan Bogor
Abstrak: Plasma protein merupakan campuran yang sangat kompleks yang terdiri dari protein sederhana, glikoprotein dan jenis lipoprotein (Martin, 1983). Protein plasma sebagian besar terdiri atas protein globular dan sebagian kecil protein fibrosa. Jenis protien globular yang penting dalam tubuh adalah albumin, globulin, histamin dan protemin (Gayton, 1983).
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Judul: Studi Banding Metode Elektroforesis Protein Darah Ayam Kampung dan Puyuh
Abstrak: Penelitian ini dilakukan di dua tempat yaitu labora- torium Pemuliaan dan Genetika Ternak, Fakultas Peternakan dan laboratorium Terpadu Kimia Analisa, Institut Pertani- an Bogor, selama dua bulan yaitu dimulai bulan Maret 1988 sampai dengan bulan April 1988. Tujuan dari penelitian ini adalah untuk mempelajari teknik-teknik pengenalan karakteristik protein darah pada ayam kampung dan puyuh. Diharapkan hasil penelitian ini dapat dijadikan metode dasar untuk menunjang program pe- muliaan dalam rangka identifikasi ternak melalui karakte- ristik polimorfisme protein darahnya. Karakteristik protein darah dapat dipelajari dengan cara elektroforesis. Ada beberapa macam teknik atau me- tode elektroforesis dan pada penelitian ini menggunakan gel akrilamida sebagai media pemisah protein dengan tek- nik elektroforesis tabung dan lembar. Teknik pewarnaan gel yang digunakan adalah Amido Black 10B dan Coomassie Blue. Protein yang dianalisis diambil dari contoh darah, yaitu plasma darah ayam kampung dan puyuh. Tiap-tiap teknik atau metode akan mengekspresikan pola protein yang berbeda. Metode elektroforesis lembar memperlihatkan hasil yang lebih seragam dibandingkan de- ngan elektroforesis tabung, baik jarak maupun jumlah pita proteinnya. Jika dibandingkan pola protein plasma darah ayam dan puyuh, dengan menggunakan teknik elektroforesis dan pewar- na yang sama maka didapatkan hasil bahwa pola protein da- rah ayam kampung lebih beragam dari pada puyuh. Jumlah pita protein dengan elektroforesis tabung dan pewarna Ami- do Black 10B 0.6%, untuk ayam kampung jantan sejumlah 3- 16 pita, betina 3 13 pita dan puyuh 4 - 12 pita. Pada teknik yang sama pewarna Coomassie Blue 0.15% maka ayam kampung jantan mempunyai 6 - 12 pita, puyuh 9 13 pita. Tetapi ayam kampung betina pada teknik ini mempunyai jum- lah pita protein 8 - 10 pita…
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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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