Judul: Hubungan Dinamika dan Peran Kelompok dengan Kemampuan Anggota dalam Penerapan Inovasi Teknologi Usahatani Kopi Rakyat:
Abstrak: The objectives of this study were as follows: (1) to analyze the characteristics of farmer group members in implementing technological innovation of smallholders coffee farming; (2) analyze the ability level of farmer group members and (3) describe the characteristics of members, dynamic and role of groups that associated with member’s capability. The study was designed as a descriptive correlation study that conducted in January-March 2010. The number of 88 respondents using proportionate stratified random sampling method of all smallholder coffee farming groups in Sidomulyo Village Silo District Jember Regency. Primary and secondary data were analyzed using descriptive and inferential statistics with Tau-B Kendall correlation. Results showed that there were some differences in the characteristic between members of smallholder coffee farming groups for intermediate level and advanced level. Group dynamic and role intermediate and advanced level were high, but for advanced level still low on group role as an economic units. Member’s capability level of them were high but for advanced level still low in the technological innovation implementation of post harvest and access to information, capital and markets. Characteristics of group members that showed significantly positive correlation with capability in the technological innovation implementation of coffee farming were the experience of farming, membership mass of farming group, the cosmopolite level and motivation. Group dynamic that showed significantly positive correlation with capability in the technological innovation implementation of coffee farming were group goals, group building, cohesiveness, group atmosphere, pressure and effectiveness of group. Likewise, the significantly positive correlation was found in the role of farming groups and capability in the technological innovation implementation of coffee farming.
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Judul: Relationship Between Commynication Networks and the Adoption Process of Coffee Management Technology Innovation among Millennial Coffee Farmers
Abstrak: Jaringan komunikasi yang terbentuk pada Kelompok Milenial Surga Lidah Tani dapat digunakan untuk memengaruhi proses adopsi suatu inovasi pertanian, salah satunya adalah teknologi pengelolaan pasca panen kopi. Tujuan penelitian ini adalah untuk menganalisis hubungan jaringan komunikasi dengan proses adopsi inovasi di Kelompok Milenial Surga Lidah Tani. Metode yang digunakan dalam penelitian ini adalah metode kuantitatif yang didukung dengan data kualitatif. Teknik pemilihan responden menggunakan sampel jenuh (sensus). Hasil dari penelitian menunjukkan bahwa aktor yang sama menempati degree centrality, closeness centrality, dan betweenneess centrality paling sentral dalam jaringan pada penggunaan mesin pulper, huller, dan roaster. Adapun pada proses adopsi inovasi tergolong rendah hingga sedang. Hasil uji korelasi menunjukkan bahwa keterlibatan jaringan komunikasi terbukti berhubungan dengan proses adopsi inovasi mesin pulper secara keseluruhan maupun dengan masing-masing tahapan. Namun keterlibatan jaringan komunikasi terbukti tidak berhubungan dengan proses adopsi inovasi mesin huller dan roaster secara keseluruhan maupun dengan masing-masing tahapan., The communication network formed by the Millennial Surga Lidah Tani Group can be used to influence the adoption process of agricultural innovations, one of which is post-harvest coffee management technology. The aim of this research is to analyze the relationship between communication networks and the innovation adoption process in the Surga Lidah Tani Millennial Group. The method used in this research is a quantitative method supported by qualitative data. The respondent selection technique uses a saturated sample (census). The results of the research show that the same actor occupies the most central degree centrality, closeness centrality, and betweenness centrality in the network when using pulper, huller, and roaster machines. The innovation adoption process is classified as low to medium. The results of the correlation test show that the involvement of communication networks is proven to be related to the adoption process of pulper machine innovation as a whole and with each stage. However, the involvement of communication networks was proven to be unrelated to the process of adoption of huller and roaster machine innovation as a whole or to each stage.
Keyword: communication network, innovation adoption, post-harvest machine

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