Judul: Interaksi Sosial-Ekologi dan Resiliensi Nafkah Rumah Tangga Petani di Sekitar Kawasan Cagar Alam Gunung Celering (Kasus: Desa Blingoh, Kecamatan Donorojo, Kabupaten Jepara)
Abstrak: Rumah tangga petani di sekitar cagar alam Gunung Celering memiliki kedekatan dengan kawasan. Namun, rumah tangga petani di Dusun Guwo memiliki ancaman serius karena serangan spesies seperti lutung, bajing, dan monyet dari cagar alam Gunung Celering. Dalam kurun waktu satu tahun terakhir spesies yang masif menyerang adalah spesies monyet. Rumah tangga petani masih mampu bertahan. Tujuan dari penelitian ini yaitu menganalisis bentuk interaksi sosial-ekologi, struktur nafkah, dan faktor pendukung yang memengaruhi resiliensi nafkah rumah tangga petani. Metode dalam penelitian ini yaitu kuantitatif didukung kualitatif. Hasil penelitian menunjukkan bahwa terdapat tiga bentuk interaksi sosial-ekologi yang terjadi pada rumah tangga petani di sekitar cagar alam Gunung Celering dan terdapat empat faktor yang memengaruhi tingkat resiliensi nafkah rumah tangga petani yaitu banyaknya pekerjaan, jumlah ikatan sosial dengan tetangga, jumlah kepemilikan peralatan untuk bertani, jumlah bantuan dari pihak konservasi, dan frekuensi pelatihan.
Keyword: farmer household, livelihood resilience, monkey, nature reserve, socio ecological interaction

Judul: Patterns of Socio-Ecological Relationships of Farmer Households around Conservation Areas: Livelihood Systems and Natural Resource Management
Abstrak: Strategi konservasi hutan melalui pengembangan unit pengelolaan hutan masih membawa kendala sosial berupa terbatasnya akses terhadap lahan bagi masyarakat yang penghidupannya bergantung pada hutan. Rumah tangga petani di sekitar Taman Nasional Gunung Gede Pangrango mempertahankan kelangsungan hidup mereka dengan mengambil strategi mata pencaharian alternatif dan menerapkan tindakan pengelolaan sumber daya alam berkelanjutan. Tujuan penelitian ini adalah menganalisis pola hubungan sosial ekologi rumah tangga petani di sekitar kawasan konservasi dengan sistem penghidupan yang bergantung pada sumber daya alam yang terdapat di kawasan Taman Nasional Gunung Gede Pangrango. Penelitian ini menggunakan metode kuantitatif yang didukung dengan pendekatan kualitatif untuk mendapatkan temuan di lapangan. Hasil penelitian menunjukkan lima pola hubungan sosial ekologis yang dikembangkan oleh rumah tangga petani di sekitar kawasan konservasi. Terdapat kontribusi yang signifikan pada karakteristik rumah tangga petani terhadap struktur pendapatan rumah tangga. Akses terhadap sumber daya hutan yang diberikan kepada masyarakat mendukung pengembangan struktur penghidupan berbasis sumber daya alam oleh rumah tangga petani pada umumnya.
Keyword: farmer's household, livelihood system, national park, social-ecological

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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