Judul: Analisa kelayakan usahatani sukun (Studi kasus Desa Ringinsari, Kec. Kandat Kab. Kediri, Jawa Timur)
Abstrak: Berdasarkan pengalaman sejarah Indonesia, pengadaan pangan merupakan masalah yang sangat strategis karena menyangkut kepentingan masyarakat luas. Usaha-usaha peningkatan produksi bahan pangan ini terus di pacu dengan berbagai paket teknologi yang memang relatif berhasil. Namun sering kali pengaruh alam yang tidak dapat di kendalikan atau bencana alam menyebabkan terjadinya penurunan produksi yang tajam, paceklik yang berkepanjangan dan Berawanan pangan.
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Judul: Analisis Usahatani dan Tataniaga Padi Varietas Unggul (Studi Kasus  Beras Pandan Wangi di Kecamatan Warungkondang Kabupaten  Cianjur)
Abstrak: Sistem ketahanan pangan merupakan persoalan tentang penyediaan bahan pangan pokok dalam dimensi kuantitas, kualitas, ruang dan waktu bagi seluruh masyarakat. Dalam bahasa ekonomi masalah ketahanan pangan menyangkut persoalan ekonomi produksi, distribusi dan konsumsi. Beras merupakan bahan pangan pokok bagi 95 persen penduduk Indonesia. Indonesia berhasil berswasembada beras pada tahun 1984. Dua dasawarsa terakhir ketersediaan beras nasional hanya mampu memenuhi 90 persen kebutuhan nasional. Ketersediaan beras dipengaruhi oleh beberapa faktor. Faktor-faktor yang mempengaruhi ketersediaan beras adalah luas areal panen (usahatani), produksi beras atau gabah, dan jumlah penduduk. Peningkatan produksi padi di Indonesia belum mampu mencukupi permintaan kebutuhan masyarakat dalam negeri yang jumlahya semakin bertambah setiap tahunnya. Agar stok beras nasional tercukupi pemerintah melalui Bulog melakukan impor.
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Judul: Enhancement of photon absorbtion on BaxSr1-xTiO3 thin films semiconductor using photonic crystals.
Abstrak: In this research, has been conducted BaxSr1-xTiO3 (BST) thin films manufacturing for mole fraction x = 0.25, 0.35, 0.45, and 0.55; and concentration of 1 molar using chemical solution depositon (CSD) method. The materials, which are used in this research, are barium acetate [Ba(CH3COO)2, 99%], strontium acetate [Sr(CH3COO)2, 99%], titanium isopropoxide [Ti(C12O4H28), 97.999%], gallium trioxide [Ga2O3], 2-methoxyethanol [H3COOCH2CH2OH, 99%] and 1 x 1 cm of transparent conductive oxide (TCO) glass as substrate. Two BST thin films are made that for BST thin films which are doped by 10% galium (BGST) as p-type layer and pure BST solution as n-type. BST solution is made by reacting barium acetate [Ba(CH3COO)2, 99%], strontium acetate [Sr(CH3COO)2, 99%] and titanium isopropoxide [Ti(C12O4H28)] into 2-methoxyethanol solvent [H3COOCH2CH2OH, 99%] in accordance with mass gram for each x value. While, BGST solution is made in the same way as BST solution, plus adding gallium at 10% of the mass of BST. Once all materials are reacted, then vibrated using ultrasonic for 90 minutes, and followed by coating BGST / BST on the TCO substrate. Once the layer is formed, then annealed for 15 hours at temperature of 500 °C with increasing rate of 1.67 oC/minute. Characterizations of BST thin films with or without photonic crystals include the absorbance and transmittance in the visible light spectrum, as well as the electrical photoconductivity characterizations. From BST thin films without photonic crystals indicate that our thin films have light absorption area on almost the entire range of the visible light spectrum even to the infrared range with absorption value over than 67.6%, in addition, it can be seen that the maximum absorbance of BST thin films for all mole fractions lie in blue to green light spectrum region, 457 nm ≤ λ ≤ 570 nm and the minimum in yellow to red light spectrum region, 570 nm ≤ λ ≤ 678 nm. The largest absorbance is found at x = 0.25 with average absorbance value of 92.04% and maximum and minimum absorbance peaks at wavelength of 500.89 and 657.72 nm, respectively. At x = 0.35, average absorbance value decreased to 83.55% with maximum and minimum peaks at 505.73 and 613.68 nm, respectively. Then increased to 91.16% at x = 0.45 with maximum and minimum peaks at 506.04 and 618.56 nm, respectively. At x = 0.55, average absorbance value decreased to 80.12% with maximum and minimum peaks at 507.85 and 608.79 nm, respectively. Moreover, it can be seen that the addition of barium mole fraction leads to wider maximum absorbance or minimum transmittance peaks and narrower minimum absorbance or maximum transmittance peaks in the same range of the green and blue & red light spectrums, respectively. BST thin films with photonic crystals show increasing in absorption for all x values in the range of 3.04 into 13.33%. At x = 0.25, average absorbance percentage increased 3.96% from 92.4 into 95.68%, for x = 0.35 average percentage increased 7.07% into 89.45 from 83.55%. Furthermore, average absorbance of BST thin films at x = 0.45 increased 3.04% from 91.16 into 93.93% and x = 0.55 has
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