Judul: Karakteristik Individu, Iklim Komunikasi, dan Tingkat Kohesivitas Anggota Kelompok Tani Bina Tani Mandiri
Abstrak: High-intensity of communication is necessary in a group, for example by build condusive climate communication. This study aimed to describe individual characteristics, animal husbandry characteristics, level of participation, communication climate, and cohesiveness level of Bina Tani Mandiri Farmers Group Members; to analyze the correlation between individual characteristics with supportive and defensive communication climate; the correlation between animal husbandry characteristics with supportive and defensive communication climate; the correlation between level of participation with supportive and defensive communication climate; and the correlation between supportive and defensive communication climate with cohesiveness level of Bina Tani Mandiri Farmers Group members. This study used quantitative approach which supported by qualitative approach. Thirty active members of Bina Tani Mandiri Farmers Group had become respondent in this study. The results showed that goals of group level had significant correlation with supportive and defensive communication climate. Besides, supportive and defensive communication climate also had significant correlation with cohesiveness level. In additon, this study showed that age level, educational attainment, main job, secondary job, goals of individual level, experience level, animal husbandry business’s scale, and complicity in the implementation, planning, and evaluation phase had no significant correlation with supportive and defensive communication climate of Bina Tani Mandiri Farmers Group members.
Keyword: defensive communication climate, supportive communication climate, group, farmers

Judul: Hubungan Keterdedahan Media Komunikasi dengan Perilaku Komunikasi Anggota Gabungan Kelompok Tani
Abstrak: Media communication has an important role in distributing information about agriculture, especially in rural areas. Communication media can influence the communication behavior of farmers. The issues raised in this research are: 1) How do the characteristics of individual farmers, farmers exposure the communication media and communication behavior of farmers in gapoktan Jaya Mandiri?, 2) the extent of individual characteristics affecting the relationship exposure farmers on communication media?, 3) the extent of the relationship farmers communication media exposure influence the communication behavior of farmers?. The research was conducted using survey research methods. The results obtained are characteristic gapoktan member farmers such as gender, age, duration of farming, land, education and access to communication media influence farmers expoure to communication media. Meanwhile, the internet exposure related to interpersonal communication behavior of farmers and radio exposure, meeting gapoktan exposure.
Keyword: 

Judul: Separation of Neodymium from U3Si2/Al Fuel Plate for Burn-Up Determination
Abstrak: Neodymium is a common fission product produced in nuclear fission reactions. Neodymium in this study was chosen as a burn-up indicator for U3Si2/Al fuel element plates because the neodymium isotope is a stable fission product with a fairly high yield. Some procedures were carried out to separate neodymium, starting with the separation of cesium isotopes (137Cs, 134Cs) through the precipitation method, then separation of uranium isotopes (235U, 238U) and plutonium isotopes (239Pu, 238Pu) with Dowex 1x8 ion exchange resin, and separation of neodymium (Nd), samarium (Sm), as well as cerium (Ce) with Dowex 1x4 ion exchange resin. The Cs recovery reached 99.95%. The U and Pu isotopes resulting from the separation are subjected to an electrodeposition process and the weight of each isotope can be measured with an alpha spectrometer. The separation results of Nd from Sm and Ce have been proven using an XRF spectrometer. The neodymium isotopes separation was corrected using the standard addition method, and an average total Nd content of 2.4 ppm was obtained in the PEB U3Si2/Al bottom solution. It is hoped that this separation method can be applied in determining burn-up of nuclear fuel.
Keyword: neodymium, burn-up indicator, U3Si2/Al fuel plate