Judul: The Effectiveness of Rice Field Management Collaboration on Socio-Economic Conditions and Food Security of Farmers' Households (Case: Santri Tani's Ciracap Village, Ciracap Sub-district, Sukabumi Regency)
Abstrak: Kolaborasi pengelolaan sawah yang telah dilaksanakan di Desa Ciracap, Kecamatan Ciracap, Kabupaten Sukabumi, memiliki tujuan untuk mencapai tingkat ketahanan pangan rumah tangga petani. Lembaga kolaborasi yang terlibat di antaranya adalah Pesantren Pemberdayaan Alam (PPA) Al-Muhtadiin, Yayasan Baitul Maal Bank Rakyat Indonesia (YBM BRI), Dompet Dhuafa, dan korporasi budi daya padi yang memiliki peran sebagai pemberi modal, pendamping, hingga off-taker. Tujuan dari penelitian ini yaitu menganalisis sejauh mana efektivitas kolaborasi dapat memberikan perubahan yang positif pada kondisi sosial ekonomi dan tingkat ketahanan pangan rumah tangga petani di Desa Ciracap. Penelitian ini menggunakan pendekatan kuantitatif yang didukung oleh data kualitatif. Data kuantitatif diolah menggunakan uji multivariat dengan jumlah responden dalam penelitian sebanyak 30 petani dari tujuh kampung di Kedusunan Cimahi, Desa Ciracap. Hasil penelitian menunjukkan bahwa efektivitas kolaborasi pengelolaan sawah masih belum efektif secara signifikan pada kondisi sosial dan ekonomi rumah tangga petani. Berdasarkan efektivitas kolaborasi Santri Tani, secara struktural penyaluran modal melalui beberapa orang yang dipercayakan oleh stakeholder terdekatnya menyebabkan kesenjangan jumlah modal yang didapatkan petani. Hasilnya, kapasitas produksi pengelolaan sawah kurang maksimal sehingga pengaruhnya pada tingkat ketahanan pangan rumah tangga petani bersifat lemah. Meskipun begitu, proses kolaborasi sudah terjalin sesuai dengan tingkat kepercayaan tinggi antar masing-masing pihak yang terlibat.
Keyword: kolaborasi, ketahanan pangan, pengelolaan sawah, santri tani

Judul: Model pemberdayaan petani dalam pengelolaan usahatani padi di Kabupaten Karawang dan Cianjur, Provinsi Jawa Barat)
Abstrak: In Indonesia, rice is one of basic needs. The sustainability of rice production will determine food security guarantee, and the efforts to integrated food security and farmer empowerment have become an important issue today. Accordingly, the objective of this study was to analyze the level of participation of farmers in their group and the empowerment of farmers in the management of rice farming and the factors associated with it, and analyze the impact of farmer empowerment to sustainability efforts. Fieldwork was conducted from May to June 2012 in two districts in West Java, namely Karawang and Cianjur Districts by taking the 239 members of the farmer who had attended the farmer field school. The quantitative data were analyzed statistically based the descriptive technique and Structural Equations Modeling (SEM). Qualitative data were collected through in-depth interview and observation to support the quantitative data. The results showed that: (1) the level of the farmer participation in the farmer group and the farmer empowerment were classified as low. The variables that significantly affect the levels of the farmer participation in the farmer group are: intensity of empowerment and personality traits. The variables that significantly affect the levels of the farmer empowerment are: the farmer participation in the farmer group, intensity of empowerment, physical and socioeconomic environment, personality traits, and the available of agricultural information; (2) The prospects for sustainability efforts were classified as low. The level of the farmer empowerment significantly affect to the sustainability of farming; and (3) The increasing level of the farmer empowerment can be obtained by better management of empowerment process, with the increasing the farmer participation in the farmer’s group, strengthen the availability of the agricultural information, and the physical and socio economic environment.The model of the farmer empowerment in managing rice farming are enhanching the farmer participation in the farmer group’s with strengthen the availability of the agricultural information, the physic and socio economic environment, and the farmer personality.
Keyword: 

Judul: Penggunaan Teorema Homeomorphy 2-Manifold dan Teorema Euler Poincare pada Torus 𝑇�� dan Simplicial Complex 𝐾��
Abstrak: Two dimensional topological spaces are said to be homeomorphic if they have the same topological invariant, where one of topological invariant used is an Euler characteristic. Homeomorphy 2-Manifold’s Theorem and Euler Poincare’s Theorem are used to distinguish two topological spaces. Homeomorphy 2-Manifold’s Theorem uses Euler characteristic to identify two dimensional topological spaces. Euler Poincare’s Theorem is an alternative way to find Euler characteristic with Betti number, which is topological invariant as well. The objective of this paper is to investigate the homeomorphism of torus 𝑇����� and simplicial complex 𝐾�����. Topological space torus and simplicial complex 𝐾����� have the same Euler characteristic, which is two. Based on Homeomorphy 2-Manifold’s Theorem topological space torus 𝑇����� and simplicial complex 𝐾����� is homeomorphic.
Keyword: simplicial, torus, Euler, homeomorphism, topology