Judul: Sistem pemilihan varietas unggul kedelai (SIPEKSOY)
Abstrak: The Government through the Ministry of Agriculture has released more than 72 soybean varieties. High yielding varieties is one of the factors that play an important role in increasing the productivity of soybean. Lack of access the information on soybean high yielding varieties led to the knowledge level of farmers about soybean varieties are also low. This is demonstrated by the habits of farmers who did not use high yielding varieties of soybean. Farmers were not using varieties in rotation. They use varieties based on experience and not based on the knowledge or the results of the valid study. It causes decreased productivity and resilience of soybeans. Limitations of experts to disseminate information about soybean varieties and information on pests and diseases, it is necessary to build a system that can manage and store information that can be accessed easily by farmers. Soybean varieties electoral system (SIPEKSOY) is one of the systems that can be used to overcome these limitations. The purpose of this study was developed a system of the selection of soybean high yielding varieties based on online. The method used adopted SDLC method including planning, analysis, design, implementation, testing, and evaluation. The implementation of this system is using PHP and MySQL. The electoral system of soybean high yielding varieties produced was presented in three form, namely the selection of soybean varieties in the search of varieties; searching of varieties by category determination, namely potential yield category, ripe pod age, seed coat color, seed size, the adaptation of land or area, plant height, security to pests or diseases; and the search based on the keywords entered by the user. This soybean varieties electoral system simplifies and speeds up the user, e.g. extension workers, farmers, society, and experts in obtaining information about high yielding varieties of soybean.
Keyword: information system, soybean

Judul: Pengembangan Sistem Informasi Hama dan Penyakit Kedelai
Abstrak: Soybean is one of the commodities that is instrumental in food needs. However, Indonesia has not been able to fulfill its own need of soybean. Some problems faced by soybean farmers include the selection of good varieties, disruption of pest and diseases. Because of the limitations of experts to disseminate information about soybeans, it is necessary to build a system that can manage and store information so that the information can be easily accessed. To this end, we utilize the system development life cycle to develop information of soybean pests and diseases into an information system kedelai.ipb.ac.id. This method consists of five stages, namely: planning, analysis, design, implementation, and support. A Drupal core is used in the implementation of the information system in this research. The research result consists of two parts namely the information of pest and disease. The information of pest consists of the pest characteristics, indications, and controls. The disease information consists of disease characteristics, indications, and controls.
Keyword: Bogor Agricultural University (IPB), pests, diseases, soybean, information systems

Judul: Perubahan Fase Padat pada Pembentukan Hidroksiapatit Akibat Suhu
Abstrak: Hidroksipatit [HAp, Ca10(PO4)6(OH)2] adalah salah satu bahan biomaterial yang dapat digunakan untuk implan tulang buatan karena memiliki komposisi yang sama dengan tulang manusia, bersifat bioaktif dan biokompatibilitas yang baik. HAp sintesis dengan menggunakan metode kering dan metode kering modifikasi sonikasi dari reaksi antara serbuk CaO hasil pemanasan cangkang kerang darah 1200 ºC selama 2.5 jam dan diamonium hidrogen fosfat (NH4)2HPO4 sebagai sumber fosfat. Difraktogram sampel menggunakan metode kering selama 2.5 jam pada suhu 400 ºC menghasilkan fase HAp, β-TCP, AKA, OKF, Ca(OH)2, dan CaO, pada suhu 600 dan 800 ºC terbentuk fase HAp, β-TCP, AKA, OKF, dan CaO, pada suhu 1000, 1200, dan 1250 ºC (serbuk dan pelet) terbentuk fase HAp dan β-TCP. Difraktogram sampel bersumber CaO cangkang kerang darah dan CaO komersial terbentuk fase HAp, β-TCP dan AKA. Metode kering-sonikasi (pelet) pada suhu 400 1250 serta 1250 ºC (serbuk) selama 3 jam menghasilkan fase HAp, β-TCP. Pada sampel 1250 ºC (serbuk) metode kering-sonikasi menunjukkan puncak tertinggi 2θ adalah hidroksiapatit dengan nilai 2θ 31,835º dan 32,918º, dan memperlihatkan morfologi permukaan yang lebih halus dan homogen berdasarkan mikroskopi payaran elektron.
Keyword: Cangkang kerang darah, Hidroksiapatit, Suhu