Judul: Estimasi Nilai Kerugian Ekonomi Masyarakat Akibat Kegiatan Industri Pengolahan Aspal Di Kelurahan Kayumanis, Kota Bogor
Abstrak: Meningkatnya kebutuhan hidup manusia telah mendorong terjadinya pembangunan di berbagai sektor, termasuk sektor industri. Aktivitas industri sendiri dapat memberikan dampak berupa penurunan kualitas lingkungan. Tujuan dari penelitian ini adalah untuk mengidentifikasi kerugian yang dialami masyarakat akibat kegiatan industri, memperkirakan nilai kerugian masyarakat, mengetahui nilai Willingness to Accept (WTA) masyarakat, dan mengidentifikasi faktor-faktor yang mempengaruhi nilai WTA. Penelitian ini menggunakan pendekatan cost of illness, loss of earnings, dan Contingent Valuation Method (CVM). Hasil penelitian menunjukkan bahwa kerugian ekonomi setiap rumahtangga adalah Rp161.751,04,- per tahun dan nilai rata-rata WTA setiap rumahtangga sebesar Rp821.428,56 per tahun. Faktor-faktor yang mempengaruhi nilai WTA adalah usia responden, pendidikan, jumlah tanggungan keluarga, jarak tempat tinggal dengan industri, dan kualitas udara di sekitar tempat tinggal responden
Keyword: CVM, industri pengolahan aspal, kerugian ekonomi, Willingness to Accept (WTA)

Judul: Estimasi Nilai Kerugian Masyarakat Akibat Pencemaran Air Tanah di Sekitar Kawasan Industri (Studi Kasus Industri Keramik di Kelurahan Nanggewer, Kabupaten Bogor)
Abstrak: One of the activities of economy, like an industrial activity may reduce the level of environmental quality. The study of the estimation of both external cost and public compensation (WTA), the effects toward environment caused by industrial activities is needed to achieve sustainable development. The objectives of this study are to identify the negative externality effect of the industry activity, to estimate economic losses and WTA value caused by industrial activities, and to identify the factors that influence WTA value. This paper presents explores the descriptive analysis, valuation of environmental economics, and application of Contingent Valuation Methods (CVM). The result shows that the economic loss of each household per month is IDR 125,716.67 and the average values of household’s WTA per month is IDR 497,674.42. There are seven factors those influence WTA value significantly such as age, gender, income, economic loss caused by replacement cost, education level, the distance between houses and industry area, and economic loss caused by medical cost.
Keyword: Willingness to Accept (WTA), estimation, economic losses, CVM, ceramic industry

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