Judul: Pemanfaatan digital elevation model (DEM) dan citra ALOS AVNIR-2 untuk pemodelan longsor: studi kasus DAS Ciliwung hulu
Abstrak: In acordance with the development of society in upper Ciliwung river, land convertion usage depending of what the society needs, such as settlements, agricultural land, etc. The most happening of land convertion usage at upper Ciliwung river is the changing of the land which used to the agricultural needed into the non-agricultural statements. One of the impacts of the high intensity of land convertion was the occurance of landslide which could became a disaster. the objectives of this research were to asses the development of DEM and making a landslide model based on what DEM produced. To carry trough all of those things up, it is generated some main datas. There are non-optical remote sensing (SRTM) as well as optical remote sensing data (ALOS AVNIR-2), topographic map, also the meteorological and soil data. The usages of all those datas are to obtain the necessary parameters that needed to calcute the slope, slope aspect, elevation, vegetation index, rainfall, soil type, relief, and soil material. The first three parameters derived from the DEM, while the vegetation index derived from analysis of ALOS AVNIR-2 imagery. The last three parameters obtained from 1:50,000 soil maps scale (Puslitanak, 1992). Field observation was conducted to determine the points of landslide and to locate them with GPS, while the method of overlay of GIS used to analyze the relationship between the landslide point with parameters assessed. Further statistical analysis (LDA) using Tanagra 1.4 software to determine the effect of those parameters in landslides possibility with 5% interval accuracy. The result showed that the parameters that significantly affected to the danger of landslide were rainfall and elevation, while the slope, vegetation index and slope aspect had no significant effect. This may be caused by a lack of precision (accuracy) of the DEM results (with interval contour 12,5 meter) which could the interval contour at landslide point less than 12,5 meter.
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Judul: Identifikasi Sebaran Spasial Resiko Tanah Longsor Sebagai Upaya Mitigasi Bencana di Sub DAS Cisadane Hulu
Abstrak: Application of Geographic Information Systems (GIS) and remote sensing can be developed for the management in an attempt to handle of natural disasters such as landslides in the area within a watershed. The purpose of this study was to obtain a distribution map of hazard level of landslides and its risk as a result of landslides at upper Cisadane Sub watershed, using GIS technologies. The results of the analysis showed that areas with high susceptible, medium, low of landslide covered approximately 8539.83 Ha (21.89%), 26243.56 Ha (67.27%) and 4226.84 Ha (10.83%), respectively. Meanwhile, the risk of landslides analysis depicted that in general the upper Cisadane Sub watershed were mostly included as low risk of landslides disaster. It was very unfortunate, that some areas designated as residential zone within spatial plan were situated on areas with a high susceptible of landslides disasters. This was not accordance with the principle of spatial planning.
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Judul: Trichomonas Gallinae Penyebab Trichomonosis Pada Unggas
Abstrak: Trichomonas gallinae adalah protozoa yang bergerak aktof dengan keempat flagella yang mempunyai layar dan pada salah satu sisinya terdapat membran seperti sirip ikan yang berombak. Spesies dari genus Trichomonas ini mempunyai arti penting pada unggas, karena dapat menyebabkan infeksi pada alat pencernaan bagian atas.
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