Judul: Estimasi Willingness To Pay Air Tanah dan Air Pipa di Desa Tamansari, Kecamatan Tamansari, Kabupaten Bogor
Abstrak: Water is a natural resource that absolutely necessary for human and other live beings, therefore the existence and quality of water resources should be maintained. However, in line with population growth, the need for clean water is also increasing. Taman Sari village is an area that does not flowing PDAM waterways, so that during the dry season the water crisis. Therefore, the government launched the program of water supply pipelines originating from Mount Salak. The purpose of this research were to estimate the willingness to pay (WTP) the Castle Village community as an appreciation of the services of groundwater and the factors that influence, to estimate the willingness to pay (WTP) to obtain the Castle Village community in order to obtain the service of clean water supply and factors that influence it and analyze reliability of the Contingent Valuation Method (CVM) in determining the willingness to pay the villagers of the Castle to pay in order to get clean water. Observations and interviews were conducted to the Castle Village community who still use groundwater wells and taken by purposive sampling method. The Result showed that the average value of ground water WTP per household per month was IDR 414.71/m3 per household per month and the factors that affect the value of the significant WTP were age, education level, and the amount of water usage. Whereas, the average value of WTP on water pipes was IDR 575/m3 per household per month as well as the factors that affected the value of the significant WTP were age, income level, number of dependents and the amount of water usage. Reliability test using Cronbach Alpha method to get a value of 0.640, which means reliable.
Keyword: willingness to pay, test reliability, clean water crisis, CVM

Judul: Willingness to Pay of People toward PDAM Hygienic Water Supply (Case in Babakan Village, Sub district of Dramaga, Regency of Bogor).
Abstrak: Desa Babakan merupakan pemukiman yang sebagian besar masyarakatnya masih mengandalkan air sumur atau air tanah sebagai sumber kebutuhan air sehariharinya. Permasalahan sumber daya air yang terjadi adalah kekeringan akibat penurunan debit air dan adanya resiko pencemaran air tanah. Pemerintah menyediakan PDAM sebagai sarana air bersih yang dapat menjadi alternatif pemenuhan kebutuhan air dengan kualitas air yang terjamin. Penelitian ini menganalisis karakteristik masyarakat Desa Babakan, Willingness to Pay (WTP), beserta faktor-faktor yang mempengaruhi kesediaan masyarakat membayar air bersih PDAM. Metode yang digunakan pada penelitian ini adalah analisis deskriptif, Contingent Valuation Method (CVM) dan metode regresi logistik. Hasil WTP dengan menggunakan dichotomous choice CVM diperoleh sebesar Rp 4 545/m3. Faktor-faktor yang berpengaruh signifikan terhadap keputusan masyarakat membayar air bersih adalah jumlah tanggungan keluarga, jarak sumur dengan septic tank, bid, dummy pengetahuan kualitas air, dummy sakit, dummy konsumsi air minum dalam kemasan, pendapatan, dan jumlah penggunaan air.
Keyword: Bogor Agricultural University, Institut Pertanian Bogor, IPB, Hygienic water, Dichotomous choice CVM, Logistic regression, WTP, Well water, Waterdebit, Water resources, PDAM, Water supply

Judul: Sintesis dan Pencirian Kompleks Fe(III)-Kuersetin
Abstrak: Quercetin belongs to flavonols which is able to chelate metal ions. Quercetin may chelate metal ions at 3’,4’-catechol, 3- or 5-hydroxycromone sites. In this study, quercetin was complexed with Fe(III). The complex with Fe(III) ions from FeCl3·6H2O was more stable than the complex derived from Fe(NO3)3·9H2O. The quercetin was yellow in color and showed maximum wavelengths (λ􀭫􀭟􀭶) at 250 and 370 nm. The Fe(III)-quercetin complex from Fe(NO3)3·9H2O was yellowish green with 􀟣􀭫􀭟􀭶 at 280 and 420 nm, whereas that from FeCl3·6H2O was dark green with 􀟣􀭫􀭟􀭶 at 280 and 430 nm. The 􀟣􀭫􀭟􀭶 shift indicated that the complex was formed at 3-hydroxychromone site. The Fe(III)- quercetin complex was formed with 1:1 metal-ligand mole ratio based on atomic absorption spectrophotometry analysis and the X-ray diffractogram showed that the crystallinity of the complex was 37%.
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