Judul: Transformasi Komponen Utama Data citra Landsat TM5 Pada Areal Tanaman Padi
Abstrak: Analisis komponen utama mempakan salah satu metode statistika yang dapat digunakan untuk menggali informasi dari data citra TM5 khususnya dalam hubungaunya dengan multidimensi peubah. Transformasi komponen utama pada data nilai digital tanaman padi citra TM5 menghasilkan 3 komponen utama yang setara dengan transformasi kecerahan, kehijauan dan kelembaban Tasseled Cap. Tiga komponen utama pertama bertumt-turut merupakan unsur kehijauan (85.9 %), kecerahan (8.9 %) dan kelembaban (2.5 %).
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Judul: Principal Component Analysis (PCA) and Tasseled Cap Transformation (TCT) of Multispectral Drone Image for Identification of Rice Fields
Abstrak: Pemantauan lahan sawah dengan menggunakan drone menawarkan solusi baru, efisien, dan hemat biaya dalam identifikasi atau pengumpulan informasi kondisi tanaman padi di lahan sawah. Penelitian bertujuan mengidentifikasi kanal kehijauan, kecerahan, dan kekuningan dari foto drone multispektral dengan transformasi PCA dan TCT serta mengetahui perbedaan hasil kedua transformasi. Penelitian dilaksanakan pada petak sawah 7A dan 1B milik Balai Benih Padi dan Palawija (BBPP) Cianjur. Transformasi PCA pada foto drone multispektral dari padi sawah menghasilkan 3 komponen utama yaitu PCA 3 dari petak 1B dan 7A merepresentasikan kanal kehijauan, PCA 4 dari petak 1B dan PCA 2 dari petak 7A menggambarkan kanal kecerahan, dan PCA 2 dari petak 1B dan PCA 1 dari petak 7A merepresentasikan kanal kekuningan. Transfromasi TCT dinilai lebih baik dalam merepresentasikan kanal kehijauan, kecerahan, dan kekuningan serta lebih mampu dalam menjelaskan perbedaan-perbedaan yang nampak pada citra., Monitoring paddy fields using drones offers a new, efficient and cost effective solution in identifying or collecting information on the condition of rice plants in paddy fields. The research aims to identify greenness, brightness, and yellowness channels from multispectral drone images with PCA and TCT transformations and to determine the differences in the results of the two transformations. The research was carried out on rice fields 7A and 1B belonging to the Cianjur Rice and Vegetable Seed Center (BBPP). The PCA transformation on the multispectral drone of paddy fields produced 3 main components, namely PCA 3 of plots 1B and 7A representing greenish channels, PCA 4 of plots 1B and PCA 2 of plots 7A representing brightness channels, and PCA 2 of plots 1B and PCA 1 of plot 7A representing yellowish channels. The TCT transfromation is considered better in representing the channels of greenness, brightness, and yellowness and able to explain the differences that appear in the images.
Keyword: drone multispektral, principal component analysis, tasseled cap transformation

Judul: Antibodi anti-idiotipe sebagai kandidat vaksin rabies, Anti-idiotype andibody as a rabies vaccine candidate
Abstrak: Anti rabies serum (ARS) called antibody 1 (Ab1) was used as the antigen to immunize laying chickens. Anti-Ab1 chicken immunoglobulins (IgY), the antiidiotype antibodies against rabies (Ab2) was isolated from chicken blood every week for ten weeks. The highest titer of Ab2 was found at the third week after the last immunization. Immunoglobulin Y was separated by means of ammonium sulfate precipitation, then dialyzed using PBS pH 8.0 for 24 hours at 2 – 8 oC and purified using affinity chromatography column for IgY lead the proteins molecules with 185,000; 95,000 and 49,000 dalton in weigth. Purified IgY was used to immunize New Zealand White rabbit and the antibody response (Ab3) was detected using Agar Gel Precipitation Test (AGPT). The Ab3 showed specific reaction with Ab2 as well as rabies virus. Interestingly, Ab2 and rabies virus express partial identity reaction. This lead the insight, that not all parts of Ab2 are internal image of rabies virus. The efficacy of Ab3 was detected using enzyme linked immunosorbent assay (ELISA) and indicated that the level of Ab3 titer is protective according to WHO standard (more than 0.5 IU/ml). The conclusion of this study is the anti-idiotype antibody can induce protective immune response against rabies virus and can be used as an alternative for rabies anti-idiotype vaccine. Key words : anti-idiotype vaccine, antibody, rabies
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