Judul: Sistem Pakar Identifikasi Hama pada Tanaman Kelapa dan Kelapa Sawit.
Abstrak: The decreasing of coconut palm and oil palm productivity, as export commodities, was caused by continuously plant pest. This expert system can be used as a tool to identify the kinds of infections on the coconut palm and oil palm, and how to treat the pest according to the damage indications which can be seen on the outside of the plants, such as leaves, blossoms, and fruits. This expert system was developed using software lifecycle method in its design and development. This system was made using web programming language PHP and MySQL in its database organization. The kind of representation used is rules with forward chaining. With this system, user can identify the kind of infections on the coconut palm and oil palm according to the indications submitted by user. This system is also able to add, change, and delete the indications and the result of consultation which done by admin.
Keyword: 

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: Lawson Criterion Analysis of D-3He Fusion Reaction
Abstrak: Reaksi fusi merupakan reaksi penggabungan dua inti atom ringan menjadi inti atom baru yang lebih berat dengan melepas sejumlah energi. Kriteria Lawson sebagai syarat penting dalam reaksi fusi berkelanjutan. Penelitian ini bertujuan untuk mengetahui kriteria Lawson pada reaksi fusi D-³He dengan temperatur 75, 80, 85, 90, 95, 100 keV, pengaruh radiasi bremsstrahlung dan reaktivitas fusi menggunakan parameter Hively dan Bosch-Hale. Nilai reaktivitas Hively berada dalam rentang 1,121 × 10^(-22) – 1,726 ×10^(-22) m^3/s, tidak jauh berbeda dengan reaktivitas Bosch-Hale yaitu 1,208 × 10^(-22) – 1,718 × 10^(-22) m^3/s. Reaktivitas fusi mempengaruhi kriteria Lawson, yaitu berada dalam rentang 1,110 × 10^21 – 1,452 × 10^21 s/m^3. Nilai tersebut menunjukkan waktu kungkungan dan kerapatan plasma yang dibutuhkan untuk menghasilkan energi yang menguntungkan pada temperatur 75 – 100 keV sehingga fusi mencapai tahap ignition, Fusion reaction is a reaction where two light atomic nuclei merge into a new heavier atomic nucleus by releasing some energy. Lawson criterion is an important condition for sustainable fusion reactions. This study aims to determine Lawson criterion for the D-³He fusion reaction with temperatures of 75, 80, 85, 90, 95, 100 keV, the effect of bremsstrahlung radiation, and fusion reactivity using Hively and Bosch-Hale parameters. Hively's reactivity value is in the range of 1,121 × 10^(-22) – 1,726 ×10^(-22) m^3/s , not so much different from Bosch-Hale’s reactivity of 1,208 × 10^(-22) – 1,718 × 10^(-22) m^3/s. Fusion reactivity affects Lawson criterion which is in the range of 1,110 × 10^21 – 1,452 × 10^21 s/m^3. This value indicates the confinement time and plasma density required to produce net energy at a temperature of 75 – 100 keV so that fusion reaches the ignition stage.
Keyword: kriteria Lawson, radiasi bremsstrahlung, reaksi fusi, reaktivitas fusi, Lawson criterion, bremsstrahlung radiation, fusion reaction, fusion reactivity