Judul: Analisis Mata Pencaharian Alternatif Nelayan Pancing di Kepulauan Seribu
Abstrak: Nelayan pancing di Kepulauan Seribu menggunakan lima jenis pancing yaitu pancing tongkol, pancing tenggiri, pancing ulur, pancing tonda, dan pancing parabola. Penelitian ini bertujuan untuk mendeskripsikan unit penangkapan pancing dan menentukan pendapatan nelayan dari kegiatan penangkapan dan mata pencaharian alternatif yang dilakukan nelayan pancing di Kepulauan Seribu. Hasil analisis unit penangkapan ikan menunjukan bahwa nelayan menggunakan lima jenis pancing hal ini disesuaikan dengan hasil tangkapan. Ada enam mata pencaharian alternatif yang dilakukan nelayan pancing di Kepulauan Seribu. Mata pencaharian tersebut adalah usaha budidaya kerapu, usaha penangkapan udang pengko (udang ronggeng), penyewaan kapal, usaha warung, tukang bangunan, dan usaha perbaikan mesin kapal. Berdasarkan hasil analisis usaha diperoleh rata-rata pendapatan nelayan dari kegiatan usaha penangkapan pancing sebesar Rp2.684.677,- per bulan. Kegiatan mata pencaharian alternatif yang dilakukan meningkatkan pendapatan nelayan sebesar 20,90% per bulan. Hasil analisis usaha menunjukan usaha penangkapan pancing dan mata pencaharian alternatif memiliki nilai revenue-cost ratio >1. Hal ini menunjukan bahwa semua usaha yang dilakukan oleh nelayan mendatangkan keuntungan dan layak untuk dikembangkan. Kegiatan mata pencaharian alternatif harus dikembangkan lebih lanjut untuk meningkatkan kesejahteraan nelayan
Keyword: Seribu Archipelago, alternative livelihood, line-fishers

Judul: Mata Pencaharian Utama dan Alternatif Nelayan Gillnet di Pangkalan Pendaratan Ikan Logending, Kebumen, Jawa Tengah.
Abstrak: Kesejahteraan nelayan gillnet khususnya nelayan ABK yang masih rendah merupakan salah satu masalah di Pangkalan Pendaratan Ikan Logending. Hal ini disebabkan pendapatan dan tingkat pendidikan nelayan yang juga relatif rendah. Untuk meningkatkan pendapatan, nelayan gillnet melakukan pekerjaan alternatif atau pekerjaan di luar mata pencaharian utama. Penelitian ini bertujuan untuk mendeskripsikan usaha perikanan gillnet di lokasi studi, dan menganalisis mata pencaharian alternatif nelayan tersebut. Dalam penelitian ini, mata pencaharian utama dan alternatif nelayan gillnet juragan dan ABK dianalisis untuk mengetahui besarnya penghasilan total. Hasil penelitian menunjukkan bahwa pendapatan utama nelayan gillnet juragan rata-rata sebesar Rp3 237 513 per bulan, sementara pendapatan rata-rata ABK masih di bawah Upah Minimum Regional Kabupaten Kebumen yaitu sebesar Rp1 388 706 per bulan (UMR = Rp1 433 900). Untuk itu, sebagian besar nelayan melakukan pekerjaan alternatif untuk menambah pendapatan. Mata pencaharian alternatif tersebut meliputi ternak sapi, usaha warung, dan penyadapan nira yang masing-masing dapat menambah pendapatan rata-rata sebesar Rp496 666, Rp409 143, dan Rp435 193 per bulan.
Keyword: Logending, pencaharian alternatif, pencaharian utama, perikanan gillnet

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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