Judul: Resiliensi komunitas nelayan pada musim paceklik ikan (Kasus: Kampung Muara Angke, Kecamatan Penjaringan, Jakarta Utara)
Abstrak: Bencana musim paceklik ikan menciptakan kerentanan pada nelayan. Nelayan melakukan strategi adaptasi dalam komunitasnya untuk beresiliensi. Penelitian ini bertujuan untuk menganalisis resiliensi komunitas nelayan pada musim paceklik ikan. Pendekatan yang digunakan dalam penelitian ini adalah kuantitatif dan kualitatif. Hasil penelitian menunjukkan bahwa kerentanan yang tinggi komunitas pada musim paceklik ikan. Kerentanan diukur melalui keterpaparan dan sensitivitas musim paceklik ikan. Kapasitas adaptasi komunitas tinggi dengan mengandalkan faktor-faktor kohesivitas komunitas, kepemimpinan, sumberdaya komunitas, dan jaringan sosial. Bentuk-bentuk adaptasi tergolong banyak yang dilakukan dengan penguatan norma, perubahan gaya hidup, perubahan pekerjaan, dan perubahan praktik melaut. Hubungan antara kapasitas komunitas dan bentuk-bentuk komunitas yaitu mendukung resiliensi komunitas sebagai mekanisme adaptasi dari musim paceklik ikan. Resiliensi komunitas tergolong baik karena komunitas dapat memenuhi kebutuhan pokok yakni pangan dan kesehatan.
Keyword: bad season fish, resilience, community, fisherman

Judul: Kapasitas Adaptif Komunitas Nelayan dalam Menghadapi Kerusakan Ekosistem Laut
Abstrak: Bencana merupakan peristiwa yang berpotensi traumatis yang secara kolektif dialami. Kerusakan ekosistem laut menyebabkan produktivitas nelayan terganggu sehingga kesejahteraan nelayan ikan menurun. Tujuan penelitian ini adalah menganalisis kapasitas adaptif dan aksi kolektif dalam resiliensi komunitas nelayan menghadapi kerusakan ekosistem laut. Pendekatan yang digunakan adalah pendekatan kuantitatif didukung data kualitatif dengan metode survei secara online. Pemilihan responden dilakukan secara accidental sampling dengan jumlah responden sebanyak 30 orang. Hasil penelitian menunjukkan bahwa kapasitas adaptif komunitas nelayan tinggi dalam menghadapi kerusakan ekosistem laut dengan melakukan perubahan dalam bentuk aksi kolektif. Masih ada sebagian anggota komunitas yang kurang memahami tujuan pelaksanaan kegiatan namun mereka sudah berpatisipasi sehingga resilien dalam bentuk peningkatan kesejahteraan, keeratan hubungan dalam komunitas dan perbaikan sarana penunjang produktivitas nelayan.
Keyword: adaptive capacity, collective action, community resilience

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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