Judul: Penggunaan Internet Sebagai Media Komunikasi Dalam Menciptakan Hubungan Akrab
Abstrak: This research is about relationships that occur in communication conducted via the Internet. The study used a descriptive approach with a survey method. The respondents were users of Internet services in internet cafes. This study focused on the relationship between individual factors (ethnicity, language, origin of birth, last education, occupation, income, and gender), communication via the internet, and intimate relationships. Based on the results obtained, the last education, occupation, gender appear to be associated with communications over the Internet. It is seen from the intensity of use of e-mail that is high by the majority of Internet users has been characterized by graduating college, and has worked, and female gender are a bit more is high in frequency of use of social networking. Meanwhile, although based on research results of internet users feel the trust and openness that is low, but Internet users feel the concern and compassion that is high. It is known to quite fit with the so-called false intimacy by Henline (2006).
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Judul: Pemanfaatan Friendster sebagai media komunikasi antar pribadi melalui jaringan sosial dunia maya:
Abstrak: Penelitian ini bertujuan ingin mengetahui dan menganalisis profil anggota friendster, akses media friendster, aktivitas komunikasi, jaringan sosial, pemanfaatan friendster sebagai media komunikasi, dan hubungan antara profil anggota, akses media friendster, aktivitas komunikasi dengan jaringan sosial, serta hubungan jaringan sosial dengan pemanfaatan friendster. Penelitian dilaksanakan di jalan Babakan Raya I Drarnaga, Kabupaten Bogor. Kuesioner diberikan kepada anggota friendster yang masuk dalam jaringan peneiti dan diedarkan di wamet "Qlobal Internet" Pengambilan dan pengumpulan data dilaksanakan pada bulan Maret 2009. Penelitian di desain dengan metode survey. Populasi adalah anggota eiendster yang berada di Kabupaten Bogor tepatnya di jl Babakan Raya I Dramaga. Pengambilan sampel menggunakan metode purposive sampling dan jumlah sampel50 orang. Data dianalisis secara deskriptif dengan perbitungan persentase dan tabel distribusi. Analisis hubungan menggunakan analisis rank Spearman untuk data ordinal dan Chi-square untuk data nominal dengan alat bantu statistik SPSS 13 for Windows.
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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