Judul: The Role of The Spread of Nuclear Technology Rice to The Regional Development in Java a Case Study in Malang Districts and Bogor
Abstrak: Development in Java Island can be done through the development of paddy with favorable specifications. Java as a base of rice producers have the capability and suitability of land that allows for the development of the agricultural sector. The results of the study of nuclear science and technology in agriculture is expected to contribute to increasing the productivity of the national rice. Rice varieties nuclear technology research results have been deployed in 18 districts in Java. But there has never been research on spatial distribution maps as well as the response of farmers to rice nuclear technology. To determine the role of rice spread of nuclear technology to developing areas in Java, set the following research objectives: (1) determine the distribution map of the area in the island of Java which has been planting rice nuclear technology research results. (2) determine the role of stakeholders in the dissemination of rice varieties nuclear technology research results. (3) determine the level of adoption of rice farmers to the research of nuclear technology. (4) determine the role of rice nuclear technology to the development of the region. (5) provides policy direction rice seed dispersal of nuclear technology. The analysis was performed by using GIS analysis, stakeholder analysis, response analysis, schallogram analysis, and SWOT analysis. Distribution of rice nuclear technology results in Java has covered 18 districts with a total area of planting began in 2007 was 6,800 ha. The district is Bandung, Bogor, Karawang, Lebak, Pandeglang, Serang, Banjarnegara, Brebes, Sleman, Bantul, Demak, Jepara, Kudus, Pati, Purbalingga, Rembang, Jember, and Malang. Rice grown nuclear technology results include varieties Yuwono, Mayang, Diah suci, Mira-1, Bestari, and Inpari Sidenuk. The area is most widely spread of Malang is 1060 ha, while the area is the smallest spread of Bogor district is 100 hectares. Stakeholder mapping results showed Faculty of Agricultural Technology, Brawijaya University, Malang has a great interest and a small influence, involvement only in terms of the implementation of the program in terms of deployment and authority to implement rules and policies. BATAN and Distanhut Bogor Regency has a great importance and influence, however, influence and interests BATAN higher than Distanhut. BATAN involvement from planning, organizing, implementing, monitoring / evaluation. Distanhut involvement in the spread of rice is in terms of organization and execution. Farmers in Malang and Bogor and seed providers / breeder has little importance and influence. Farmers and seed providers depend on the seed stocks of BATAN, these stakeholders do the breeding and spread of seed if available, if not available, the presence of seeds they will plant other varieties. The results of the analysis showed farmers repons spreaders in Malang district judge deployment Yuwono varieties, Diah Suci, Mira-1, Bestari, and Inpari Sidenuk better than local varieties. It can be seen from the farmer to plant sustainability of nuclear technology despite the implementation of co-operation has ended. Farmers in Malang district judge spreader rice nuclear technology over the relative benefits, more appropriate, and can easily see the results compared to local varieties. Similarly, farmers spreader Bogor assess varieties Mira-1 and Pandanputri better than local
Keyword: rice nuclear technology, the farmer, the deployment region

Judul: Keragaan Agronomi Varietas Padi di Kabupaten Bogor dan Kabupaten Subang Menggunakan Sistem Tanam Jajar Legowo 4:1
Abstrak: Peningkatan produksi padi dapat dilakukan dengan penggunaan varietas unggul didukung oleh sistem budidaya yang tepat dan lingkungan yang sesuai. Lokasi atau lingkungan tumbuh yang berbeda memiliki perbedaan kondisi agroekosistem sehingga dapat menyebabkan pertumbuhan dan produksi yang berbeda pada varietas yang dibudidayakan. Penelitian ini bertujuan mengetahui pengaruh lokasi terhadap keragaan agronomi dan produktivitas beberapa varietas padi yang ditanam menggunakan sistem tanam jajar legowo 4:1. Varietas yang digunakan yaitu Inpari 32, Inpari 33, Inpari 43, IPB 3S, IPB 9G, dan Batang Piaman. Rancangan yang digunakan adalah Rancangan Kelompok Lengkap Teracak (RKLT) dengan satu faktor varietas, kemudian dilakukan analisis gabungan antar lokasi percobaan. Lokasi tanam berpengaruh terhadap jumlah anakan, jumlah malai per rumpun, jumlah gabah total per malai, jumlah gabah bernas total per malai, dan bobot gabah kering giling (GKG). Varietas unggul baru (VUB) yang meliputi Inpari 32, Inpari 33, dan Inpari 43 memiliki ciri-ciri jumlah anakan banyak dengan jumlah gabah per malai kategori sedikit dan sedang, sedangkan padi tipe baru (PTB) memiliki ciri-ciri jumlah anakan sedikit dengan jumlah gabah per malai kategori sedang. Jumlah anakan, jumlah malai per rumpun, dan jumlah gabah per malai akan berpengaruh pada produksi padi., The effort for Increasing rice production could be achieved by planting high yielding varieties supported by implementing an appropriate cultivation system and suitable growing environments. Differetnt location or growing environment have different agroecosystem conditions could be differences growth and production of cultivated varieties. This study aimed to determine the effect of different location on agronomic performance and productivity of several rice varieties grown using “jajar legowo 4:1” system. The varieties used were Inpari 32, Inpari 33, Inpari 43, IPB 3S, IPB 9G, and Batang Piaman. It was arranged in Randomized Complete Block Design (RCBD) of one factor, namely variety, then a combined analysis was carried out between the experimental locations. Planting location affected the total stem, total panicle per clump, total grain per panicle, total pithy grain per panicle, and dry milled grain weight (GKG). The new superior varieties (VUB) which include Inpari 32, Inpari 33, and Inpari 43 have the characteristics of a large number of tillers with the number of grain per panicle in the category of few and medium, while the new type of rice (PTB) has the characteristics of a small number of tillers with the number of grain per panicle medium category. The number of tillers, number of panicles per clump, and number of grain per panicle will affect rice production.
Keyword: Agroecosystem, high yielding varieties, productivity

Judul: Konstruksi aritmetika kurva eliptik F(2m) supersingular dan non-supersingular untuk skema kunci publik ElGamal
Abstrak: Algoritme ElGamal adalah salah satu algoritme kunci publik dengan aritmetik modular p yang mempunyai struktur grip siklik Z(p). Tingkat keanaman algoritme ini terletak pada pemecahan masalah logaritme diskret dari Z(p). Akan tetapi, tingkat keamanan tadi tahun ke tahun semakin menurun yang disebabkan kemampuan pemecahan algoritme diskret semakin meningkat. Untuk memenuhi tingkat keamanan yang memadai dibutuhkan p yang cukup besar yang menyebabkan proses enkripsi dan dekripsi menjadi lambat.
Keyword: