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: 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: Hybrid solar cells of ZnO nanoparticles/chlorophyll was modified metal ions (Zn2+ and Cu2+ )
Abstrak: Zinc Oxide (ZnO) is a n-type semiconductor with a wide the energy band (Band Gap) is 3.37 eV at room temperature and 3.34 eV at low temperature with a large exiton binding energy is 60 meV. ZnO has been synthesized by hydrothermal method, resulting in a decrease in particle size over the duration of the hydrothermal changes. Crystallographic structure of ZnO were characterized using XRD, has shown the characteristic pattern of a hexagonal wurtzite structure, the crystallite size increases to changes in particle size. Changes in particle size has also led to a change in the absorption peak of ZnO as has been demonstrated posted under test using the optical properties of UV-Vis spectrophotometer. Changes of this uptake has also led to changes in the energy band gap, which increases its band gap energy of the particle size. In electronic applications, especially in solar cells. Chlorophyll is considered less effective, because of their very nature are easily degraded as a result of several reactions which are acid, lighting and temperature. The results of the stability test using a halogen lamp 34 W/m2 for 5 hours, that the substitution of chlorophyll with metal ions Zn2+ and Cu2+ has been shown to form more stable than natural chlorophyll. The characterization of the optical properties, the combination of ZnO / chlorophyll in the form of hybrid films has led to a shift in the absorption region of ZnO becomes more widely from the UV to Visible. ZnO/chlorophyll has absorption range of 350-515 nm, ZnO / Zn-feofitin 332-401 nm and 332-632 nm for Cu-feofitin. The combination of ZnO/chlorophyll and CuSCN as a solid electrolite in hybrid solar cell, a modified chlorophyll with metal ions Zn2+ and Cu2+ has been shown to form a more stable I-V curve. It is characterized by its fill factor value greater than natural chlorophyll. Nevertheless, solar cells with natural chlorophyll has been able to produce higher efficiency values of chlorophyll were substituted.
Keyword: Hydrothermal, ZnO/Chlorophyll modified, Hybrid Solar Cell