Judul: Analisis Thorpe Untuk Mengkaji Proses Percampuran Turbulen Di Perairan Timur Kalimantan
Abstrak: Turbulent mixing process in coastal seas of eastern part of Kalimatan, between delta of Mahakam and Balikapapan Bay, was evaluated from density inversions in CTD profiles, known as Thorpe analysis. Before Thorpe analysis, wavelet denoising was applied on CTD signal to remove noise. It reveats that overturn regions.were found at surface layer up to l5 m depth, and near bottom layer. The turbulent energy kirretic dissipation rate € of these layers was about l0-7-10-5 Wkg-1. And the density of eddy diffusivify K, indicates the relatively strong turbulent (K,p= 10-4-10'-3 m2/s; occurred at the rnouth of delta of Mahakam meanwhile no turbulent mixing was found toward Balikpapan Bay.
Keyword: densitas eddy diffusivitas, laju dissipasi energi kinetik turbulen, overtrurn pencampuran turbulen, wavelet denoising

Judul: Pencampuran Vertikal di Perairan Matasiri, Laut Jawa
Abstrak: Perairan Matasiri terletak di bagian timurlaut Laut Jawa dan berbatasan langsung dengan Selat Makassar. Perairan ini merupakan daerah transisi yang terletak di antara jalur utama ARLINDO Makassar dan Arus Monsun Laut Jawa, sehingga diduga mempengaruhi proses pencampuran massa air. Selain itu, aktivitas gelombang internal di daerah slope juga diduga menjadi faktor terjadinya percampuran vertikal. Penelitian ini bertujuan untuk menganalisis proses fisik perairan Matasiri berupa stratifikasi densitas air laut, pola perpindahan (displacement) densitas secara vertikal, serta menghitung nilai koefisien diffusivitas eddy vertikal dengan Analisis Thorpe dari data CTD yoyo hasil pengukuran joint-riset DIKTI-LIPI 2010. Hasil penelitian menunjukkan bahwa, dari data 16 profil CTD yoyo, stratifikasi yang relatif kuat dari suhu, salinitas dan densitas air laut terbentuk di kedalaman sekitar 5-10 m, bersesuaian dengan terbentuknya nilai stabilitas statis dari frekuensi Brunt-Vaisala yang tinggi di kisaran kedalaman ini. Stratifikasi densitas bervariasi mengikuti pola fluktuasi dari pasang-surut komponen pembangkit diurnal (K1), dimana vektor arus total dominan mengarah ke timurlaut dan utara. Rerata setiap bin (5 m) dari nilai dissipasi turbulen eddy (epsilon) dan diffusivitas eddy vertikal (Kρ), masingmasing, bervariasi antara 9.13 10-13 – 2.08 10-7 Wkg-1 dan 8.7 10-5 – 5.65 10-3 m 2 s -1. Nilai dissipasi epsilon dan Kρ cenderung tinggi di dekat dasar perairan (kedalaman 31-35 m). Dari hasil analisis Thorpe dapat disimpulkan bahwa nilai koefisien percampuran turbulen di perairan Matasiri tergolong sedang pada ordo 10-3 m2s-1.
Keyword: CTD yoyo measurement, Difusivity of turbulent Eddy, Dissipation of turbulent Eddy, Joint-research DIKTI-LIPI, Matasiri waters, Thorpe analysis, Sea man soon, Water mass mixing, Wave activity, Physical processes, Thorpe analysis

Judul: Antibodi anti-idiotipe sebagai kandidat vaksin rabies, Anti-idiotype andibody as a rabies vaccine candidate
Abstrak: Anti rabies serum (ARS) called antibody 1 (Ab1) was used as the antigen to immunize laying chickens. Anti-Ab1 chicken immunoglobulins (IgY), the antiidiotype antibodies against rabies (Ab2) was isolated from chicken blood every week for ten weeks. The highest titer of Ab2 was found at the third week after the last immunization. Immunoglobulin Y was separated by means of ammonium sulfate precipitation, then dialyzed using PBS pH 8.0 for 24 hours at 2 – 8 oC and purified using affinity chromatography column for IgY lead the proteins molecules with 185,000; 95,000 and 49,000 dalton in weigth. Purified IgY was used to immunize New Zealand White rabbit and the antibody response (Ab3) was detected using Agar Gel Precipitation Test (AGPT). The Ab3 showed specific reaction with Ab2 as well as rabies virus. Interestingly, Ab2 and rabies virus express partial identity reaction. This lead the insight, that not all parts of Ab2 are internal image of rabies virus. The efficacy of Ab3 was detected using enzyme linked immunosorbent assay (ELISA) and indicated that the level of Ab3 titer is protective according to WHO standard (more than 0.5 IU/ml). The conclusion of this study is the anti-idiotype antibody can induce protective immune response against rabies virus and can be used as an alternative for rabies anti-idiotype vaccine. Key words : anti-idiotype vaccine, antibody, rabies
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