Judul: Dampak Aktivitas Pertambangan Emas Tanpa Izin terhadap Kesejahteran Rumah Tangga Gurandil
Abstrak: This study aimed to analyze relationship between factors which are stimulated emergence of gurandil with activities undertaken by gurandil in doing illegal gold mining, and its relationship with welfare of households, by using Spearman rank correlation test. This research was conducted using quantitative research approach, namely use of instruments such as questionnaires, and qualitative data supported by in-depth interviews, participant observation and document analysis. Results of this study explain that the factors stimulates the emergence gurandil are associated with the level of activity in the gold mining without permission. Factors that influence intensity of gurandil's activity is economic factors, because of low level of earned income to meet family needs. Another factor that affects activity of gurandil is legal factors and social factors. Gurandil activity levels are categorized according to the characteristics, namely gurandil shallow, regular gurandil, and gurandil barrel. Gurandil activity in gold mining without permission is gurandil shallow highest. Based on the obtained relationship gurandil activity by household welfare level gurandil is seen from physical condition of residential buildings, level of health, education level, income level, and level of expenditure.
Keyword: Bogor Agricultural University, level of welfare, gurandil activity, driving factors of gurandil

Judul: Dampak Industri Pertambangan Emas Tanpa Izin terhadap Kehidupan Sosial dan Ekonomi Gurandil (Kasus Desa Pangkal Jaya, Kecamatan Nanggung, Kabupaten Bogor)
Abstrak: Rural industrialization was synergy in order to promote the economic empowerment of rural farmers.Various changes that occur in response to industrial development and the accompanying impact will vary depending on a subjective definition of the affected private interests and social values of the society. The impact of the mining industry can affect people's lifestyles countryside views of change aspects activities, interests, and one person's opinion. The method used in this study is a randomized method (simple random sampling) and using the Spearman rank to analyze the relationship between variables. The results of this study is the impact of the mining industry seen from the change rate of employment become illegal miners. There is a moderate positive relationship between the impact of the mining industry to the community because the community's response to the changes lofty views of employment, the level of expenditure and income level. Likewise with the public response to the lifestyle there is a positive relationship are due to changes in lifestyle society.
Keyword: Bogor Agricultural University, community response, lifestyle, mining, industry

Judul: Pembuatan Film Tipis Lithium Niobat (LiNbO3) Menggunakan Metode Chemical Solution Deposition (CSD) dengan Variasi Kecepatan Putar (Rpm).
Abstrak: Film tipis merupakan salah satu aspek yang mendapat perhatian sangat besar dalam bidang material, karena film tipis merupakan material menarik yang memiliki sifat optik yang sangat tergantung pada konstanta dielektrik, indeks bias, dan energi gap. Lithium Niobat (LiNbO3 ) dapat digunakan sebagai pelapis pada film tipis karena memiliki sifat piezoelektrik, electrooptical, pyroelectrical dan photorefractive yang sangat baik. Film tipis Lithium Niobat (LiNbO3 ) ditumbuhkan menggunakan metode Chemical Solution Deposition (CSD) dengan variasi kecepatan 3500 rpm, 5000 rpm, 6500 rpm, dan 8000 rpm. Metode ini memiliki keunggulan dapat mengontrol stokiometri film tipis dengan kualitas yang baik, prosedur yang mudah dan membutukan biaya yang relatif murah. Energi band gap yang dihasilkan dari film tipis Lithium Niobat (LiNbO3) berkisar antara rentang 2.1 eV – 2.8 eV dengan indeks bias berada pada rentang 2.18-3.2. Film tipis LiNbO3 memiliki parameter kisi a=b=5.54Ǻ dan c = 16.35 Ǻ. Struktur morfologi film tipis adalah permukaan yang homogen dan ukuran kristal berada pada rentang 0.417 μm – 0.680 μm.
Keyword: sifat optik, litium niobat, chemical solution deposition, kecepatan putar