Judul: Dampak Dinamika Banjir Pasang (Rob) terhadap Sistem Sosial Ekologis Kota Semarang (Studi Kasus di Kelurahan Tanjung Mas)
Abstrak: Region of coastal area of Semarang represents the region with the solid activity complexity. The complexity activities caused the level of pressure at the region. Environmental damage have been seen. Phenomenon that happened until now is tidal floods called rob. If tidal floods handling install is not systematic, estimated Semarang will sink. The aims of this study was to identife social ecological system dynamics, to estimate ecological impact and economic social, to compile indication strategy of management of coastal area base on the adaptation to tidal floods.The result showed that pursuant to historical analysis shows that tidal floods increased in the case of height irrigate and also spread area affected, pond tidal flood resulted the change of structure of social condition and space of area economics affected, analyse the scenario that the development embank the sea (seawall) with the environmental management with of cultivation mangrove alongside embank and drainage basin in physical represent the effective solution in area management. Tidal floods gived magnitude effects not for human and all activities but for the region and ecological system.
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Judul: Estimasi Kerugian Ekonomi Masyarakat Akibat Banjir Rob di Pemukiman Kecamatan Genuk Kota Semarang.
Abstrak: Wilayah pesisir sangat rentan terhadap perubahan lingkungan, salah satunya adalah banjir karena pasang air laut atau biasa disebut banjir rob. Kecamatan Genuk merupakan wilayah di Kota Semarang yang rentan terhadap banjir rob karena langsung berbatasan dengan Laut Jawa di bagian utara. Banjir rob salah satunya disebabkan oleh tingkat penurunan permukaan tanah yang lebih dari 8cm/tahun. Tujuan dari penelitian ini adalah untuk mengidentifikasi dampak banjir rob, mengestimasi besarnya kerugian ekonomi masyarakat akibat banjir rob, dan mengidentifikasi tindakan strategi adaptasi dari masyarakat dan pemerintah dalam menghadapi banjir rob. Metode yang digunakan dalam penelitian ini adalah analisis deskriptif dan Stage Damage Function. Hasil penelitian menunjukan bahwa banjir rob memberikan dampak terhadap aktivitas masyarakat, akses jalan, kesehatan dan lingkungan. Rata-rata kerugian per rumah tangga selama 2016 sebesar Rp2.340.563/KK/tahun. Total kerugian seluruh rumah tangga di Kecamatan Genuk akibat bencana banjir rob tahun 2016 sebesar Rp7.187.870.394/tahun. Sebagian besar responden telah melakukan tindakan adaptasi untuk mengurangi kerugian dan dampak dari banjir rob. Sebesar 85,57% telah melakukan tindakan adaptasi pada tahun 2016.
Keyword: banjir rob, Stage Damage Function, strategi adaptasi

Judul: Apatite Growth Optimation on Chicken Mucouse by Fourier Transform Infrared (FTIR) Characterization
Abstrak: Some experiment had been conducted to grow apatite from supersaturated solution of calcium phosphate ions on chicken mucouse. The calcium and phosphate ions were originated from Ca(NO3)2 and (NH4)2HPO4. Carbonate ions from (NH4)2CO3 was also used as starting solution. Experiment was carried out within about 5 hours at temperature 370 C and pH 7. Value of Ca+ : PO4 3- was 1.67, while molar ratio of CO3 2- : PO4 3- was 0.5 : 1. Molarity of molar ratio CO3 2- : PO4 3- variated approximately 0.15 : 0.30, 0.51 : 1.02, and 0.90 : 1.80. Mass of mucouse powder was constant 0.75 gram. The analysis result of Fourier Transform Infrared (FTIR) showed that the precipitation was apatite carbonate type A and B. In these experiment it was found out that the mucouse reduce the crystallinity of apatite precipitant, and the growth of apatite crystal was optimum at solution with molar ratio CO3 2- : PO4 3- about 0.15 : 0.30.
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