Judul: Analisis Pemanfaatan dan Nilai Ekonomi Air Buangan Pendingin Ruangan (Air Conditioner) di Fakultas Ekonomi dan Manajemen, Institut Pertanian Bogor.
Abstrak: Reuse of wastewater from Air Conditioner (AC) is one alternative that can be used to conserve water resources by using reuse water for toilets, cleaning service, and watering plants. The purpose of this research are to examine the alternative of usage and collectivity that can be done in the utilization of AC wastewater, estimate the economic value of AC, identify factors that influence the magnitude of the economic value of AC wastewater, and analyze the feasibility of the utilization of AC wastewater in Faculty Economics and Management IPB. Methods used for this research were descriptive analysis, Willingness To Pay (WTP), factors analysis that influence WTP value, and Benefit Cost Analysis (BCA). The result showed that based on laboratory test in IPB PROLINK, AC wastewater can be reused for household water usage. WTP value based on the research from sample is Rp 2,36 per liter, this value is low because AC wastewater percepted as sewage. Based on multiple linear regression analysis that has been done, factors that influence WTP value is income level and cost to get the clean water. There are three alternative to collect wastewater from AC, that are (1) reservoir, (2) water torrent, and (3) buckets. Result of the analysis of the feasibility of AC wastewater usage is possible to implement for second and third alternative. Based on feasibility and the value of NPV< Net B/C, and IRR, alternative 2 and alternative 3 are feasible. NPV, Net B/C, and IRR for second alternative is Rp 1.858.711,545, 1,9392, and 24%, whereas for third alternative is Rp 2.473.354,944, 2,7758, and 38,17%. First alternative is not feasible to be implemented because value of NPV < 0, Net B/C < 1, and IRR < interest rate
Keyword: IPB, FEM, BCA, WTP, AC Wastewater, Water Utilization, Economic Value

Judul: Analisis Ekonomi Pemanfaatan dan Pengembangan Sumberdaya Air (Studi Kasus: Kampung Cibereum Sunting, Kelurahan Mulyaharja, Kecamatan Bogor Selatan, Kota Bogor)
Abstrak: Water is the principal and essential resource for human life. The development of housing increase the competition of groundwater demand and leads to groundwater scarcity. The objectives of this research are to examine the characteristics of water resources user, to estimate the value of Willingness to Pay (WTP), to analyze the factor affect of WTP, and to examine feasibility of development clean water resservoir in Cibereum Sunting, Mulyaharja Village, South Bogor sub-district, Bogor City. This research used several analyses, such as descriptive, WTP, regression, and feasibility study. The results show that the characteristics of water users in Cibereum Sunting have revenue approximately Rp 1,000,001-Rp 2,000,000 per month, the amount of water needed are 3-4 m³/day/household, and number of water users are 5-6 person/household. The average value of WTP of water user is estimated Rp 149.05 per m³. The factors affect of WTP are age, revenue, and the amount of water needs. Based on the financial feasibility analysis for Net Present Value (NPV) is Rp 16,210,358.7; Net Benefit-Cost Ratio (Net B/C) is 1.18; and Internal Rate of Return (IRR) is 19%. Then, based on the economic feasibility analysis for NPV is Rp 38,839,914.09; Net B/C is 1.55; and IRR is 32%. It can be concluded that the development of clean water reservoir is feasible and important for continuous water supply for local people. The water resource optimal allocation policy must be established by government and stakeholders.
Keyword: Internal Rate of Return., Net Benefit-Cost Ratio, Net Present Value, Willingness to Pay, Water resource

Judul: Karakteristik Anatomi Skelet Kepala Buaya senyulong (Tomistoma schlegelii).
Abstrak: Buaya sepit atau senyulong (Tomistoma schlegelii) merupakan jenis buaya asli Indonesia yang berhabitat di sungai-sungai Sumatera, Kalimantan, dan juga pedalaman Sulawesi. Salah satu ciri khas buaya senyulong adalah bentuk moncong yang runcing dan sempit, namun hingga saat ini informasi mengenai struktur skelet kepala buaya senyulong sangat terbatas. Penelitian ini bertujuan untuk mempelajari karakteristik anatomi skelet kepala buaya senyulong yang dikatikan dengan fungsi dan perilakunya. Penelitian dilakukan secara eksploratif dengan melakukan pengamatan, pencatatan, dan pengambilan gambar dari skelet kepala buaya senyulong. Skelet kepala berukuran panjang 70 cm, lebar 29 cm, dan tingggi 17 cm dengan permukaan kasar pada os nasale, os frontale, os maxilla, os mandibula, os lacrimale, os jugale. Jumlah gigi pada buaya ini sebanyak 78 buah, terdiri dari 4 buah gigi premaxila, 16 buah gigi maxila, dan 19 buah gigi mandibula. Pada regio orbitalis ditemukan dua pasang fenestrae temporales yang berkembang baik. Fenestra supratemporale merupakan lubang oval yang membentang di sepanjang os parietale. Fenestra infratemporale berbentuk segitiga dan dibatasi oleh os squamosum, os postorbitale, os jugulare, dan os quadratum. Os mandibula hewan ini mempunyai symphysis mandibularis yang panjang yaitu garis yang melintang di corpus mandibulae. Secara fungsional ukuran symphysis mandibularis berkaitan dengan adaptasi hewan terhadap diet makan.
Keyword: kepala, moncong, Tomistoma schlegelii