Judul: Analisis urutan nukleotida fragmen D-Loop lumba-lumba hidung botol (Tursiops aduncus)
Abstrak: Lumba-lumba hidung botol Indo-Pasifik (T. aduncus) adalah spesies sosial yang memiliki daerah distribusi yang luas di perairan temperate dan tropis. Gelanggang Samudera Ancol (GSA) memiliki koleksi lumba-lumba hidung botol yang relatif banyak, sembilan diantaranya telah dianalisis fragmen D-Loop sepanjang 392 pb berdasarkan amplifikasi PCR dengan primer spesifik. Hasil analisis filogenetik dengan piranti lunak MEGA versi 3.1 menunjukkan bahwa kesembilan individu tersebut tergolong dalam spesies T.aduncus, kesimpulan ini didukung pula oleh ciri morfologi dan analisis fragmen DLoop. Pembandingan dengan T.truncatus dan T.aduncus yang berasal dari perairan lain seperti Australia dan Cina diketahui bahwa enam individu memiliki hubungan lebih dekat dengan T.aduncus asal perairan Australia (persamaan 99.22%) sedangkan tiga individu lainnya memiliki hubungan lebih dekat dengan T.aduncus asal perairan Cina (persamaan 99.08%). Hal ini memberi indikasi bahwa T.aduncus yang ada diperairan Indonesia merupakan percampuran dari dua perairan tersebut. Diketahui pula bahwa T.aduncus asal GSA berbeda dari T.truncatus (nilai dissimilarity 2.5%) yang ditandai oleh 11 situs diagnostik.
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Judul: Studi Morfometri Lumba-lumba Hidung Botol (Tursiops aduncus,Ehrenberg 1833) Di Kolam Konservasi PT. Wersut Seguni Indonesia, Kendal
Abstrak: Bottlenose dolphin is composed of two similar species, Tursiops truncatus and Tursiops aduncus. The purpose of this research is to study the external morphology of T. aduncus. This research was conducted in the conservation pond of PT. Wersut Seguni Indonesia, Pantai Cahaya Klampok Sendang Sekucing, Rowosari, Kendal. Four male and two female bottlenose dolphins were used in this research. The average measurements are: TBL (total body length) 210.56.74 cm, SEY (snout-eye length) 21.14.07 cm, RL (rostrum length) 11.81.17 cm, RW (rostrum width) 7.51.51 cm, MWF (maximal width of the flipper) 13.31.21 cm, TW (tail width) 53.82.92 cm, CB (circle of body) 1104.9 cm, and DFL (dorsal flipper length) 31.35.6 cm. The results showed that the size of T. aduncus is smaller compared to T. truncatus while the RL and TBL ratio is greater in T. aduncus. Measurements result indicates that there is no difference between male and female T. aduncus.
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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