Judul: Perubahan garis pantai dari pantai Teritip Balikpapan sampai pantai Ambarawang Kutai Kertanegara Kalimantan Timur
Abstrak: Shoreline change from coast of Teritip Balikpapan to coast of Ambarawang Kutai Kertanegara, East Kalimantan from 2000 – 2007 was analyzed by developing a model. Initial shoreline as an input for model was the result of Landsat image in 2000, and the shoreline from Landsat ETM in 2007 was used to compare the final result of model. The model predicts shoreline change due to along shore sediment transport generated by wave that brakes at the shoreline. The characteristics of broken waves was predicted by analysing wave transformation from off-shore sea where the wave was generated by winds. Sediment transport along the coast were mostlynortheastward as the main winds that blown toward the coast were mostly from the south. Simulation for 8 years showes that accretion more intensive in the northern part than those in the south. In general, shoreline shape resulting from model show a good resemblace to those from Landsat image in 2007. Discrepancies between the two shoreline shape occurred mostly at the upstream of the head land where results of model shows erosion but the images show the shoreline almost stable. This is perhap due to existance of mangrove that prevent erosion, but the effect of this vegetation is not included in the model.
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Judul: Perubahan Garis Pantai Selatan Jawa Kabupaten Kebumen, : Jawa Tengah
Abstrak: The study of shoreline changes during the years 2002 - 2012 was conducted in the South Coast of Kebumen, Central Java, using a principle of sediment budget on a cell along the coast. Alongshore sediment transport calculations was done by considering the influence of the wind as the main generating waves in the deep ocean. Sediment transport calculation results showed that the dominant sediment transport was to the east at the time of the waves coming from the southwest and west and to the west when dominant waves propagated from the southeast. However, in general the dominant sediment transport was to the west. The comparison of the shoreline profile between of model results and satellite imagery showed similarity. The difference mainly occurs in the curving shape of the coasline, which probably due to external factor such as human activities which were not considered in the model. The dominant processes occurring on the study area was abrasion or deterioration along the coast. The results showed that abrasion value was greater than the accretion, value i. e., abrasion was around 86.45 meters and accretion was about 74.21 meters.
Keyword: shoreline changes., waves, sediment transport, accretion, abrasion

Judul: Evaluation of Influenza Antibody Titers in Serum and Egg Yolk of Layers Vaccinated with Influenza Vaccines.
Abstrak: Influenza belongs to the Orthomyxoviridae family which causes upper and lower respiratory tract infection. The aim of this study was to evaluate influenza-A specific antibody titers from serum and egg yolk of hens vaccinated with quadrivalent influenza vaccines. Three Hy-line Brown layers were vaccinated with quadrivalent influenza type A and B inactivated vaccines. Vaccination was carried out three times at a dose of 0.25 ml/chicken via the intramuscular route. The first vaccination was carried out at 24 weeks of age, then boosters were performed at 28 and 32 weeks of age. Serum and egg yolk were collected every week for 20 weeks since the first vaccination. Influenza A H3N2 and H1N1 antibody titers were determined using hemagglutination-inhibition (HI) test and agar-gel-precipitation (AGP) test. Influenza-A H3N2 and H1N1 specific antibodies were detected in both serum and egg yolk from the first to twenty weeks after the initial vaccination. Highest HI geometric mean titer (GMT) of H1N1 antibody reached 26.67 HIU at nine weeks post first vaccination (p.f.v), while H3N2 antibody reached 26 HIU at six weeks p.f.v. Our result showed that influenza antibodies can be produced in layers using quadrivalent vaccines and layer chickens are able to produce equivalent antibody levels for each influenza subtype.
Keyword: antibody, egg yolk, influenza, layer chickens, serum