Judul: Analisis kemauan membayar masyarakat perkotaan untuk jasa perbaikan lingkungan, lahan dan air (suatu kasus DAS Citarum Hulu)
Abstrak: Mengingat krusialnya peran kawasan daerah hulu DAS, termasuk DAS Citarum, dalam mengkonservasi air, maka upaya perbaikan lingkungan kawasan itu menjadi suatu keharusan. Tujuan penelitian ini adalah menganalisis persepsi dan kemauan membayar masyarakat (WTP) untuk jasa perbaikan lingkungan, menganalisis faktor-faktor yang mempengaruhi WTP tersebut, serta menganalisis pilihan sumber air masyarakat. Metode analisis yang digunakan adalah analisis deskriptif, Contingent Valuation Method (CVM), dan regresi. Hasil analisis deskriptif menunjukkan bahwa ketersediaan air makin memburuk, sehingga perlu adanya upaya perbaikan lingkungan untuk memperbaiki kondisi air, namun WTP saat ini relatif masih rendah.. Faktor-faktor yang mempengaruhi WTP untuk jasa perbaikan lingkungan adalah pendapatan, umur, tanggungan keluarga, ketersediaan air, keluhan air, dan status rumah. Sebagian besar Masyarakat masih cenderung menggunakan air sumur daripada air PDAM, atau kedua-duanya, dengan dengan berbagai alasan dan kekhawatiran.
Keyword: 

Judul: Penifaian Jasa Lingkungan Air Minum dan Penentuen Prioriias Bantuan Perbaikan Lingkungan (Studi Kasus DAS Citarum, Jawa Barat)
Abstrak: Willingness of community at Citarum watershed to partidpate in improving environmental quality as an effort to reduce impact of dimate change was assessed based on their willingness to pay to environmentd sewices provided by upper watershed communities. Identification of activities that would reduce the involvement of upstream communities to do deforestation and assessment, of vulnerability of downstream communities to climate change was carried out through survey to. household. The illingness to pay was analyzed using Contingent Valuation Methd (CVM) and priority pwmm was analyzed using Analytical Hierarki Process (AHP). Based on CVM analysis it was indicated that the level of willingness of downstream communities to pay the compensation for the environmental sewices (0.g. drinking water) provided by upstream communities depended on their perception and understanding about the important of maintaining forest cover at the upper Citafum watershed and availability of drinking water. If the downstream communities living in the uhan areas often exposed to clean water scarcity problem during dry-season, their willingness to pay for the compensation tended to inmase. Further analysis found that the main factors that motivate mmuniiy to do deforestation at Upper Cirum watershed were to seek new land for agricutture activities and to increase their income. Majority of communities wanted to stop destructing the forest if they have alternative jobs for income generation.
Keyword: 

Judul: Sintesis α-Fe2O3 menggunakan metode sol gel
Abstrak: In this reseach was succeeded make powder α-Fe2O3 with particle size 202.64 nm. Synthesis using Sol-Gel method with SiO2 coating derived from Si(OC2H5)4 at temperature of 750 oC for 5 hours. Characterization XRD prove that sample form is α-Fe2O3 (11 peaks) and β-Fe2O3 (2 peaks) with crystal size 20.69125 nm and crystallization 44 %. The cystal structure of α-Fe2O3 is rhombohedral and β-Fe2O3 is hexsagonal. Optic characterization show that the sample absorbing light at wavelength less than 480 nm. Bandgap energy of the optical characterization measurments is 2.74 eV.
Keyword: α-Fe2O3, annealing, bandgap energy, sol-gel, crystal structure.