Judul: Analisis Kinerja Dan Partisipasi Anggota Koperasi Peternak Kelinci (KOPNAKCI) Kabupaten Bogor
Abstrak: Cooperative is a social-economic institution which has purpose to improve its member welfare. The cooperative success indicator can be seen from its success in conducting its organization and business activities. Cooperative of Rabbit Breeder (KOPNAKCI) is one of agricultural cooperative of which members are the rabbit breeders in Bogor Regency and has been successful in running both its organization and business activities due to the indicators of increasing the number of members, developing the capital from members, and rising the profit and sale volume. This study aimed to analyze the performance and member participation level in the activities of Rabbit Breeder Cooperative (KOPNAKCI) in Bogor Regency, West Java, and to know how far the cooperative progress has been achieved. The performance and member participation level of the cooperative in the form of primary and secondary data were analyzed by using quantitative method through Rank Spearman Correlation Test based on vision indicator, capacity, networking, and resources. The results of data analysis was known that the cooperative performance was in good condition. And through Rank Spearman Correlation Test, it was obtained that there was in line-relationship between economic benefit with the member participation level, capital, and business activity.
Keyword: Rabbits, Performance and Participation Analysis, Cooperative

Judul: Analisis Tingkat Partisipasi Anggota Koperasi Peternak Sapi Bandung Utara (KPSBU) Jabar
Abstrak: The role of cooperatives in economic development can be realized by exsisting their member active participations in every cooperative business activity which are benefit for improving welfare in the form of social and economic benefits. This study aims to analyze the level of member participation in the activities of North Bandung Cattle Breeder Cooperative (KPSBU) West Java. The method of analysis used was the Spearman Rank analysis which determined the relationship between the cooperative’s socio-economic benefits and its member participation level. The results showed that the relationship between social-economic benefits and member participation level in the fields of organization, business and capital had a strong relationship or moderately high association. The strongest relationship which was seen between the social-economic benefits and the member participation level was the relationship in a field of organization, especially the members’attendant in annual member meeting (RAT). The perceived social benefits are the relations of good cooperation between executive board members in terms of service and the fulfillment of the requirements for breeders. While the economic benefits perceived is the guarantee marketing milk and additional income after being a member (KPSBU) West Java.
Keyword: Participation, Socio-economic benefits, Cooperative

Judul: Pembuatan Film Tipis Cu2ZnSnS4 sebagai Lapisan Penyerap Cahaya pada Sel Surya Menggunakan Metode Elektrodeposisi
Abstrak: Thin film of Cu2ZnSnS4 (CZTS) is an alternative semiconductor used as light absorber layer on solar cell. CZTS can replace silicon that commonly used as commercial semiconductor. The advantage of using CZTS as absorber layer is due to the abundance of its chemical composer on earth, and its high value of absorption coefficient. The absorber layer was made by using electrodeposition method on ITO glass substrates. The films were deposited at room temperature using potentiostatic mode with a potential of –1.05 V for 30, 45, and 60 minutes. After that, the films were annealed at two different temperatures, 180 ºC and 500 °C, for 45 minutes in N2/H2S atmosphere. Based on X-ray diffraction analysis, the polycrystalline thin film obtained fall into kesterite crystal phase. This type of crystal was obtained when the CZTS was annealed at 500 °C in H2S/N2 atmosphere. The value of optical band gap energy for the CZTS thin film was 2.2 eV with the film thickness about 1.228–6.366 μm. The sample of CZTS with electrodeposition time of 45 minutes and annealing temperature of 500 °C showed the best result and in conformity with absorber layers criteria for solar cells.
Keyword: semiconductor, ITO glass, CZTS thin film, electrodeposition