Judul: Analisis Dampak Ekonomi Kegiatan Wisata Alam (Studi Kasus: Floating Market Lembang, Bandung)
Abstrak: The tourism industry is one sector that can improve the economic progress of society. Lembang Floating Market is one area that has great potential and has appeal as a tourist area. The specific objective of this research is to identify the characteristics of the visitors, business units, and manpower around the Lembang Floating Market, identify factors that affect tourism demand, estimating the economic impact of tourism activities of Lembang Floating Market. The results of this research show that the average age of visitors Lembang Floating Market is 17-25 years old with an average visitor job is as private employees and earn between Rp 500,000 to Rp 2,000,000, most visitors come from Bandung. Factors that influence (at 5% significance level) is the level of income, travel expenses, mileage, and the number of families. Value of economic impact is estimated using a multiplier effect approach includes direct economic impact can be felt by the owner of a business unit of Rp 1,109,671,742 , indirect economic impacts in the form of spending a business unit within the tourist area of Rp 1,120,265,853 , while the advanced economic impact in the form of expenditure manpower in the tourist area of Rp 90,784,891. Value of Keynesian income multiplier is 1.3, the ratio of income multiplier type I is 2.0, ratio income multiplier type II is 2.1.
Keyword: Bogor Agricultural University (IPB), tourism demand., tourism, the keynesian multiplier, Lembang Floating Market, economic impact

Judul: Analisis Dampak Ekonomi dan Nilai Ekonomi Wisata Alam Situ Udik Bogor
Abstrak: Bogor memiliki potensi wisata yang sangat tinggi. Keindahan alam dan kenyamanan merupakan salah satu daya tarik wisata yang patut diperhitungkan, di daerah ini banyak terdapat kawasan wisata yang menarik, mulai dari wisata alam hingga wisata budaya. Kegiatan yang berlangsung di Wisata Alam Situ Udik (WASTU) memiliki dampak yang terkait dengan perekonomian masyarakat lokal. Tujuan dari penelitian ini adalah: (1) Mengidentifikasi karakteristik dan persepsi pelaku wisata dari sisi supply dan demand WASTU; (2) Mengetahui faktor faktor yang mempengaruhi permintaan di WASTU. (3) Mengestimasi nilai ekonomi dari adanya kegiatan WASTU; (4) Mengestimasi dampak ekonomi yang ditimbulkan oleh kegiatan WASTU Penelitian ini dilakukan di WASTU, Desa Situ Udik, Kecamatan Cibungbulang, Kabupaten Bogor. Waktu pengambilan data pada bulan Maret-April 2016. Hasil dari penelitian ini diperoleh: (1) pengunjung yang berkunjung di WASTU mayoritas kategori usia muda dan orang tua banyak wisatawan yang berasal dari wilayah Bogor. Rata-rata pendapatan wisatawan berada diatas tiga juta rupiah. Mayoritas tenaga kerja lokal di WASTU Bogor berjenis kelamin laki-laki dengan rata-rata usia kerja produktif dan rata-rata tingkat pendidikan terakhir yaitu Sekolah Dasar. Pada umunya rata-rata pendapatan tenaga kerja lokal di kawasan WASTU Bogor dibawah UMR Kabupaten Bogor. Jenis unit usaha di Kawasan WASTU Bogor pada umumnya kios atau warung makanan dengan rata-rata pendapatan unit usaha diatas satu juta rupiah per bulan; (2) faktor-faktor sosial ekonomi yang berpengaruh signifikan terhadap jumlah kunjungan di WASTU adalah umur, jarak tempuh dan jenis kelamin; (3) Nilai ekonomi WASTU dengan menggunakan metode biaya perjalanan yaitu sebesar Rp 498.817.105,00; (4) Nilai dampak ekonomi yang diperoleh dari nilai Keynesian Income Multiplier yaitu sebesar 1.3, nilai Ratio Income Multiplier Tipe I sebesar 1.9, dan nilai Ratio Income Multiplier Tipe II sebesar 2.3.
Keyword: Dampak Ekonomi, Keynesian Multplier, Wisata Alam Situ Udik

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