Judul: Aplikasi Sistem Informasi Geografi untuk Evaluasi Lahan di DAS Cimanuk Hulu (Studi Kasus Daerah Sub DAS Cimuara-Cibeureum)
Abstrak: Pada saat ini konversi dari lahan pertanian menjadi lahan non pertanian khususnya untuk pemukiman meningkat sejalan dengan pertumbuhan penduduk. Hal ini menyebabkan sebagian kegiatan pertanian terpaksa bergeser ke lahan-lahan yang memiliki kualitas dan daya dukung lebih rendah. Penggunaan lahan yang hanya mementingkan produksi tanpa mempertimbangkan daya dukungnya akan mengakibatkan lahan terancam rusak dan dapat mengganggu keseimbangan ekosistem, sehingga lahan tersebut tidak dapat digunakan lagi oleh generasi mendatang. Hal seperti ini harus dihindarkan yaitu dengan merencanakan dan menata lahan berdasarkan pada kualitas dan daya dukungnya serta ditunjang oleh tekhnologi yang sesuai. Kualitas dan daya dukung lahan diketahui dari hasil evaluasi lahan yaitu dengan mempertimbangkan karakteristik lahan seperti iklim, topografi, sifat-sifat fisik, dan kimia tanah yang sifatnya permanen maupun dapat berubah. Evaluasi lahan yang umumnya dilakukan yaitu evaluasi kemampuan dan kesesuaian lahan.
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Judul: Identifikasi dan Pemetaan Lahan Kritis dengan Menggunakan Teknologi Sistem Informasi Geografis dan Penginderaan Jauh (Studi Kasus di Sub DAS Cisadane Hulu, Kabupaten dan Kota Bogor, Provinsi Jawa Barat)
Abstrak: Watershed degradation in Indonesia is caused by population increase and land-use dan land cover changes. Cisadane watershed is the one of major watershed in which its areas situated across provincial boundary. The watershed is choosen as one of a priority watershed, which is need to be managed well. The purpose of this research are to identify the level of critical land, its area, to identify distribution in the sub watershed of Cisadane‟s upstream and to identify the causal factors of critical land. The research was held on April-October 2012 in the sub watershed of Cisadane‟s upstream. The critical land analysis was determinded by three areas function, thats are protected area, cultivation area, and the outside of protected forest area. The determining parameter of critical land are land cover, slope, erosion‟s risk level, land management, land productivity, and rock outcrops. The scoring value was added to each of parameter and overlayed to each area function. The result showed that the critical land of up stream part of sub watershed of Cisadane consist of several levels. The most severe critical land was about 107,67 hectares (0,25%), the critical area was 1.144,28 hectares (2,66%), and somewhat critical area was 3.177,70 hectares (7,38%), potential critical area mostly was 20.428,60 hectares (47,45%), and non-critical area was 1.612,83 hectares (3,75%). The potential critical land was distributed mostly at protected area (1784.10 hectares) and in cultivation area (726,99 hectares), especially at Caringin District. Whereas the most severe critical land was found at outside of protected forest area (66.61 hectares), especially in South Bogor District. The level of critical land in sub watershed of Cisadane‟s upstream caused by different factors. The causal factors of critical level at protected areas and outside of protected forest area were land cover, slope, erosion‟s risk level, and land management. Whereas the causal factors of critical land level at cultivation area are land productivity, slope, erosion hazard level, land management, and rock outcrops.
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Judul: Differential Leukocytes in Mice (Mus muscullus) after Amyloid Beta Aβ40 and Aβ42 Immunization as a Marker of Alzheimer’s Disease.
Abstrak: Alzheimer merupakan penyakit neurodegeneratif yang bersifat irreversibel dan progresif yang terkait dengan perubahan sel-sel saraf, sehingga menyebabkan kematian sel otak dan terjadinya demensia. Pengamatan terhadap diferensial leukosit dapat membantu dalam mendiagnosa penyakit ini dengan tepat. Penelitian ini bertujuan mengetahui gambaran diferensial leukosit pada mencit terhadap respon imunisasi amyloid beta Aβ40 dan Aβ42. Penelitian ini menggunakan 22 ekor mencit (Mus muscullus) Balb/c jantan dan betina dengan berat badan 20-35 gr. Mencit dibagi menjadi tiga kelompok yaitu, kelompok mencit kontrol, kelompok mencit vaksinasi antigen amyloid Aβ40 dan kelompok mencit vaksinasi antigen amyloid beta Aβ42. Sampel darah dimabil melalui vena coccygea sebanyak 0,5 ml setiap mencit. Sampel darah diambil pada hari ke-0, 14 dan 24 setelah diimunisasi. Hasil menunjukkan kelompok mencit yang diimunisasi amyloid beta 40 (Aβ40) dan amyloid beta 42 (Aβ42) menyebabkan peningkatan jumlah limfosit dan neutrofil yang signifikan, sedangkan kelompok mencit kontrol tidak menunjukkan perubahan leukosit yang signifikan. Berdasarkan hasil pengamatan dapat disimpulkan bahwa pemberian imunisasi antigen amyloid beta Aβ40 dan Aβ42 pada mencit tidak memengaruhi jumlah basofil, eosinofil, neutrofil batang serta monosit., Alzheimer's is an irreversible and progressive neurodegenerative disease associated with changes in nerve cells, leading to brain cell death and dementia. Observation of differential leukocytes can help in diagnosing the disease precisely. This study aims to find out the differential picture of leukocytes in mice against amyloid beta Aβ40 and Aβ42 immunization responses. This study used 22 mice (Mus muscullus) Balb / c male and female with a weight of 20-35 grams. Mice were divided into three groups, namely, the control mice group, the Aβ40 amyloid antigen vaccination mice group and the Aβ42 amyloid beta antigen vaccination mice group. Blood samples are taken through the coccygea vein as much as 0.5 ml per mice. Blood samples are taken on days 0, 14 and 24 after immunization. Results showed the mice group immunized amyloid beta 40 (Aβ40) and amyloid beta 42 (Aβ42) caused a significant increase in lymphocyte and neutrophil counts, while the control mice group showed no significant leukocyte changes. Based on the observations, it can be concluded that immunization of amyloid beta Aβ40 and Aβ42 antigens on mice does not affect the number of basophils, eosinophils, bar neutrophils and monocytes.
Keyword: Alzheimer, Diferensial leukosit, Amyloid beta, Mencit, Alzheimer's, differential leukocytes, amyloid beta, mice