Judul: Analisis kapasitas berlebih perikanan Pukat  Cincin Pekalongan dalam kerangka kebijakan perikanan tangkap di Laut Jawa dan sekitarnya
Abstrak: Excess capacity and overfishing have been identified as the two most important problems presently facing small pelagic fisheries in Java Sea. Here a bioeconomic model was applied as an approach for depicting the current status of Pekalongan fisheries and capacity utilization rate, as well as Data Envelopment Analysis (DEA) for estimating efficiency of purse-seiner, assessing economic impact of resources and setting an alteration policy in capture fisheries.
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Judul: Analisis kapasitas perikanan pelagis di Perairan Pesisir Provinsi Sumatera Barat
Abstrak: Pemanfaatan sumberdaya ikan telah memberikan manfaat secara ekonomi kepada pelaku usaha akan tetapi pemanfaatan sumberdaya ikan ini juga memberikan dampak eksternalitas. Sumberdaya ikan bersifat renewable resources (sumberdaya yang dapat pulih) tetapi bukan berarti tak terbatas sehingga apabila tidak dikelola secara hati-hati, akan memberikan dampak negatif terhadap ketersediaan sumberdaya ikan dan lingkungan. salah satu permasalahan dalam perikanan tangkap adalah terjadinya kelebihan kapasitas tangkap (overcapacity) yang mendorong terjadinya kelebihan tangkap (overfishing)., Extraction of fishery resources has benefited both fishing industries and society. However, there is externalities associated with such an extraction. Fish is renewable resource, neverthelless, exploitation of the resource above and beyond its maximum capacity will have negative impacts biologically, economically and socially. Evercapacity seems to be the major problems faced by fishing industry nowadays.
Keyword: Analisis bioekonomi, Data envelopment analysis, Pengelolaan sumberdaya perikanan, Fisheries capacity

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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