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.
Keyword: 

Judul: Pengamatan terhadap aktivitas pengguna jejaring media sosial Facebook dengan Statistika deskriptif
Abstrak: Social network Facebook is the social network that exist long enough. Currently, Facebook is the social network with the most users in the world. More than 80% of internet users in the world have a Facebook account. In Indonesia, Facebook is the social network with the most users too. Percentage of internet users in Indonesia that have a Facebook account is over 90%, and more than half are active users. Result of observation over some Facebook account show that 45% users became passive in the last two years (2013-2014). Down rate in 2014 is higher than 2013. The emergences of various new social network with different services is suspected causes many Facebook users became passive and start using other social network.
Keyword: Bogor Agricultural University (IPB), descriptive statistics, Facebook, social media

Judul: Insecticidal Activity of Essential Oils Leaves of Cinnamomum spp. (Lauraceae) against Crocidolomia pavonana and Their Phytotoxicity on Broccoli Seedlings
Abstrak: Essential oils from leaves of 13 species of Cinnamomum were tested for their insecticidal activity on the cabbage head caterpillar Crocidolomia pavonana with leaf immerse method. The results showed that the treatment with 1% (w/v) essential oils leaves of C. celebicum, C. multiflorum, C. sintoc, and C. verum caused 21.45, 93.65, 60.30, and 76.10% mortality, respectively. Based on the results of phytotoxicity and insecticidal activity tests, C. multiflorum oil was further tested at 6 concentration levels. In all treatments, larval mortality has occurred at 24 hours after treatment (HAT) and increased at 48 HAT. LC50 of C. multiflorum oil at 24 and 48 HAT was 0.504 and 0.396%, respectively. The treatment with C. multiflorum oil at ≤0.31% did not inhibit the development of C. pavonana larvae. Determination of the chemical constituents of Cinnamomum oils were carried out by gas chromatography-mass spectrometry (GCMS). Totally, 345 compounds were identified. Methyleugenol constituted the main component (49.4%) of leaf essential oil of C. multiflorum and was assumed to be responsible for the insecticidal activity of the oil against C. pavonana larvae. LC50 of pure methyleugenol obtained at 0.365% (48 HAT) and 0.363% (72 HAT). The results showed that C. multiflorum was more effective with LC50 value equivalent to methyleugenol content of 0.32% (24 HAT) and 0.24% (48 HAT).
Keyword: