Judul: Perubahan garis pantai Tanjung Berikat, Pulau Bangka Periode 1992 - 2000
Abstrak: The offshore wave regime of Tanjung Berikat beach, in the West coast of Bangka was presented based on the analysis the availability of a dense set of the ERS (European Remote Sensing) 1/2 wind measurements at particular offshore location. The coastlines was divided into several segments represented by local orientation of the coastline. For each of these segments, the breaker wave height, depth and angle of breaker wave and longshore sediment transport were calculated. A linear regression fitting was made based on the total wave regime, to obtain the relation between the peak period, Tp and wave height, Hmo: To 3,2188Hmo +1,8932 Waves approach from directions 0100-055° N, 0550-100° N, 1000-145° N, 145°-180° N, 2810-325° N and 3250-010° N, but most frequent from 2810-325° Ν. The smallest wave height was 0,06 m from directional sector N100-055° in winter and largest 2,8 m from N145°-180° in summer. Incoming waves from the directional sector N281-325° account for most of the winter wave regime duration, about 52%. Such sector was predominantly associated to waves with mean wave height 0,84 m. Also about 28% of the summer wave regime duration corresponds to incoming waves from the directional sector N281-325°, which is mostly associated to waves with mean wave height 0,63 m. The results obtained in this study allowed to estimate the net drift for the periode 1992-2000, the annual variations of the littoral drift to obtain 25 years return periode and rate of accretion and erosion. For the periode 1992-2000, the shoreline showed an accretion at some segments with maximum rate of 6,15 m/year and an erosion at others with maximum rate of 5,16 m/year. For 25 years return periode, shoreline was predicted to be accreted at some segments with maximum rate of 8,8 m/year and eroded at others with maximum rate of 8,4 m/year.
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Judul: Dinamika perubahan garis pantai Pekalongan dan Batang, Jawa Tengah
Abstrak: Pantai Pekalongan dan Batang berada pada pesisir pantai utara Provinsi Jawa Tengah dan mendapat pengaruh gelombang dari laut Jawa yang menyebabkan perubahan garis pantai. Penelitian ini bertujuan untuk menganalisis transformasi gelombang, menghitung angkutan sedimen sepanjang pantai dan menelaah perubahan garis pantai Pekalongan dan Batang selama kurun waktu tahun 1989 hingga 2002 dengan menggunakan model numerik. Selanjutnya hasil model divalidasi dengan menggunakan citra satelit. Lokasi penelitian terletak pada koordinat 6o50’32,74”- 6o54’0,36” LS dan 109o41’34,63”- 109o45’1,26” BT. Garis pantai dianalisis sepanjang ± 6 km. Data angin diperoleh dari European Centre for Medium Range Weather Forecasts (ECMWF), data kedalaman perairan diperoleh dari peta batimetri Dinas Hidro- Oseanografi TNI-AL dan data citra satelit Landsat diperoleh dari United State Geological Survey (USGS) National Aeronautics and Space Administration (NASA). Pengolahan data angin dan gelombang laut dalam menggunakan perangkat lunak ODV 4.1.3, WRPLOT View 6.5.1 dan Microsoft Excel 2007. Citra Landsat diolah menggunakan perangkat lunak ER Mapper 7.0 dan ArcGIS 9.3. Model perhitungan transformasi gelombang dan laju angkutan sedimen dibuat menggunakan perangkat lunak Visual Basic Application 6.5 dalam bahasa basic. Hasil analisis model transformasi gelombang dan parameter gelombang pecah di dekat pantai menunjukkan bahwa gelombang yang pecah di dekat pantai Pekalongan dan Batang dibangkitkan oleh angin dominan yang berasal dari arah timur dan timur laut. Tinggi dan sudut gelombang pecah pada tiap lokasi berbedabeda dipengaruhi oleh profil kelerengan pantai dan arah datangnya gelombang. Lokasi A, B dan C memiliki profil pantai yang lebih curam dibandingkan lokasi D sehingga tinggi gelombang di lokasi tersebut lebih tinggi dibandingkan lokasi D. Pembelokkan arah perambatan gelombang terjadi pada saat mendekati garis pantai. Arah muka gelombang cenderung sejajar mengikuti kontur garis pantai. Angkutan sedimen sepanjang pantai sebagian besar ke arah barat laut dan sebagian kecil ke arah tenggara dikarenakan arah datang gelombang pecah yang dominan berasal dari timur dan timur laut. Hasil simulasi model menunjukkan bahwa selama tahun 1989-2002 sepanjang garis pantai Pekalongan dan Batang mengalami kemunduran (abrasi) dan kemajuan (akresi) yang cukup besar. Proses abrasi dan akresi pada tiap lokasi dipengaruhi oleh karakterstik gelombang pecah, profil kelerengan pantai dan angkutan sedimen pada lokasi tersebut. Hasil tumpang tindih garis pantai hasil model dan citra tahun 2002 relatif terhadap garis pantai awal (citra tahun 1989) menunjukkan pola perubahan garis pantai yang hampir sama baik abrasi maupun akresi. Perbedaan jarak perubahan garis pantai hasil model dan citra tahun 2002 terhadap garis pantai awal diperkirakan karena pengaruh faktor lain yang tidak diperhitungkan dalam model. Model ini merupakan penyederhanaan dari proses dinamik oseanografi yang kompleks di alam, tidak semua proses di alam tersebut dapat diikutsertakan dalam model.
Keyword: Bogor Agricultural University (IPB), Dynamics of shoreline, Pekalongan and Batang shoreline, Shoreline modeling

Judul: Case Study of Gallbladder Mucocele and Treatment Used In Small Animals
Abstrak: Gallbladder mucocele (GM) is defined as distention of the gallbladder caused by an inappropriate accumulation or deposition of high concentrations of bile. The purpose of this case study is to study GM conditions in small animals and to report the clinical sign and characteristics of GM through the sonogram interpretation and blood chemistry test evaluation, and studies related to the therapy given and other treatments recommended. A 14-year-old Toy Poodle dog has been diagnosed with severe GM and cholecystitis. No pain signs were shown during the physical examination as asymptomatic is a common characteristic in the early stage of biliary related diseases. In this study Abdominal ultrasonography interpretation and blood chemistry evaluation was conducted in 2021-2022 and analyzed as a secondary data source. Ultrasonography results showed presence of hyperechoic, immobile deposits in gallbladder accompanied by wall thickening and enlarged in size, followed by a significant increase in the enzyme alkaline phosphatase (ALP). This study has summarized mainly the diagnosis and treatments of GM in small animals and suitable alternatives treatments were recommended to encounter the GM conditions in small animals. The effectiveness of combined therapy shows the positive impact on the patient, the condition of GM has been under control.
Keyword: ultrasound, gallbladder, biliary sludge, abdominal ultrasonography