Judul: Pengaruh Kemitraan Pabrik Gula Karangsuwung Kabupaten Cirebon terhadap Tingkat Kesejahteraan Petani Tebu
Abstrak: Partnerships in plantation is a mutually beneficial relationship, mutual respect, mutual responsibility, mutually reinforcing, and interdependence among firms with planters. However, the trend of inequality and domination in partnership creates dependency either party in this case the farmers against the company. Dependency is what makes a strong control of the farmers so that farmers in decision-making independence of farming is low. The purpose of this study to analyze the pattern of partnership that exists between PG Karangsuwung with sugarcane farmers, as well as determine the level of independence of the partner farmers trying to farm and farmer's welfare. Based on the results of the study showed that the degree of independence of sugarcane farmers partner does most of the still relatively low, but when seen from the welfare of the majority of already high. This is because the degree of independence is less direct effect on the level of well-being, there are other more influential factors such as the size of land holdings.
Keyword: 

Judul: The Effect of Partnership on Production and Income of Sugarcane Farmers in Malang Regency
Abstrak: Krebet Baru Sugar Factory has entered into a partnership with sugar cane farmers in Malang Regency. Partnerships have a role in technical services and a separate sugarcane purchasing process which causes differences in the production and income of sugarcane farmers. Therefore, this research aims to analyze the effect of partnerships on the production and income of sugar cane farmers in Malang Regency. Respondents in this study were 70 sugar cane farmers consisting of 45 partner sugar cane farmers and 25 non-partner sugar cane farmers with a sampling method, namely random sampling for partner farmers and snowball sampling method for non-partner farmers. The analytical methods used are Income Analysis and Multiple Linear Regression Analysis. The research results show that partnerships do not have a significant effect on the production and income of sugar cane farmers in Malang Regency. However, farmers who enter into partnerships have higher average values for sugarcane production per hectare and income per hectare than farmers who do not enter into partnerships., Pabrik Gula Krebet Baru telah melakukan kemitraan dengan petani tebu di Kabupaten Malang. Kemitraan memiliki peran pada pelayanan teknis dan proses pembelian tebu tersendiri yang menyebabkan perbedaan pada produksi dan pendapatan petani tebu. Oleh karena itu, penelitian ini bertujuan untuk menganalisis pengaruh kemitraan terhadap produksi dan pendapatan petani tebu di Kabupaten Malang. Responden dalam penelitian ini berjumlah 70 petani tebu yang terdiri dari 45 petani tebu mitra dan 25 petani tebu non-mitra dengan metode penentuan sampel yaitu random sampling untuk petani mitra dan metode snowball sampling untuk petani non-mitra. Metode analisis yang digunakan yaitu Analisis Pendapatan dan Analisis Regresi Linier Berganda. Hasil penelitian menunjukkan bahwa kemitraan tidak berpengaruh secara signifikan terhadap produksi dan pendapatan petani tebu di Kabupaten Malang. Selain itu, petani yang melakukan kemitraan memiliki nilai rata-rata yang lebih tinggi pada produksi tebu per hektare dan pendapatan per hektare dibandingkan petani yang tidak melakukan kemitraan.
Keyword: kemitraan, tebu, produksi, pendapatan, regresi linier berganda, partnership, sugar cane, production, income, multiple linier regression

Judul: The Exploration of Discrete Logarithm over Finite Field GF(3m)
Abstrak: The security of many public~key algorithms is based on the problem of finding discrete logarithms. The generalized discrete logarithm problem is the following: given a finite cyclic group G of order n, a generator a of G, and an element fl E G, find the integer x, 0 ~ x ~ n - 1, such that 0: = fl. Algorithm for discrete logarithm problem focused on Menezes et al. (1997) that consist of exhaustive search algorithm, the baby-step giant-step algorithm, Pollard's rho algorithm, Pohlig-Hellman algorithm, and index-calculus algorithm. These algorithms are explorated to be used in discrete logarithm problem over finite field GF(3m ). The exploration also produces some algorithms, i.e. naif negative algorithm, baby-step mother-step algorithm, baby-step mother free-step algorithm, and baby-step free-step algorithm. All algorithms implemented using Maple 11. The Pohlig-Hellman and baby-step giant-step algorithms are efficient enough to be used in discrete logarithm problem over finite field GF(3m ) for m < 20.
Keyword: