Judul: Estimasi Sisa Lauk Hewani, Lauk Nabati, dan Sayuran Konsumen Beberapa Jenis Rumah Makan di Kota Bogor
Abstrak: This study aimed to estimate the waste of animal and plant sources of food, and vegetables among consumers of some type of restaurants in Bogor city. The study was conducted in Padang, Sundanese, Javanese Restaurants, and Tent Stalls. Data collection was conducted in March 2013 until April 2013. A cross-sectional design was implemented in this study. Total respondents were 279 consumers. Sundanese restaurants has a most variation types of plant sources and vegetables waste, and Javanese restaurants has a most variation types of animal sources waste. Gender is known to have tendency to be one the factors causing different leftovers, that female gave more leftover of animal sources, plant sources, and vegetables than male. Loss of nutrients due to waste of animal sources was the most in tent stalls. Loss of nutrients due to waste of plant sources and vegetables was the most in Javanese restaurants. However, generally, loss of nutrients percapita permeal of each foods is not significant, less than one percent of the RDA.
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Judul: Estimation of the Value of Economic Losses and Public Perceptions of Food Waste: A Case Study at Restaurant in Bogor City
Abstrak: Rumah makan merupakan salah satu penghasil pemborosan pangan terbesar, termasuk rumah makan di Kota Bogor. Kota Bogor memiliki jumlah rumah makan dalam jumlah cukup besar dan terus meningkat setiap tahunnya. Pangan yang disajikan di rumah makan tidak seluruhnya habis terjual dan dikonsumsi, sehingga menimbulkan hilangnya nilai ekonomi dari pangan yang terbuang. Tujuan penelitian ini adalah untuk mengestimasi volume (berat) dan nilai kerugian ekonomi dari food waste, menganalisis proses terjadinya pemborosan pangan, dan mengidentifikasi faktor-faktor yang memengaruhi perilaku ekonomi dan persepsi masyarakat terhadap pemborosan pangan. Metode yang digunakan adalah pendekatan model Djekic, cost of wasted food dengan menggunakan pendekatan harga pasar, analisis deskriptif, dan analisis regresi logistik. Hasil penelitian menunjukkan bahwa kelompok pangan sayur merupakan pemborosan pangan paling tinggi dari sisi produsen dan unggas sebagai pemborosan pangan paling tinggi dari sisi konsumen. Nilai kerugian ekonomi yang ditanggung akibat pemborosan pangan paling tinggi yaitu pada rumah makan sedang dan paling rendah adalah rumah makan kecil. Berdasarkan sisi produsen, perlakuan terhadap sisa makanan yaitu dibuang, disimpan untuk di jual kembali, dikonsumsi sendiri, dan di daur ulang, sedangkan dari sisi konsumen sebagian besar membiarkan pangan yang tersisa daripada membungkusnya. Seluruh produsen dan konsumen rumah makan di Kota Bogor memiliki pengetahuan yang baik dalam upaya pencegahan pemborosan pangan. Faktor-faktor yang berpengaruh nyata memengaruhi perilaku ekonomi dan persepsi masyarakat terhadap pemborosan pangan pada rumah makan di Kota Bogor adalah jenis kelamin, pendapatan, waktu makan, dan kebiasaan.
Keyword: Consumer, cost of wasted food, likert, logistic regression, producer

Judul: Elektrodeposisi Film Tipis Semikonduktor Cu2ZnSnS4 (CZTS) pada Substrat Kaca ITO
Abstrak: Semiconductor Cu2ZnSnS4 (CZTS) thin film that can be used as absorber layers on solar cell module was made via electrodeposition method. CZTS thin film was electrodeposited on the surface of a silicate glass coated with a thin layer of indium tin oxide (ITO). Deposition process was done using potentiostatic mode at room temperature with a potential of 1.05 V for 30, 45, and 60 minutes, followed with annealing the film at 2 different temperatures, 500 ºC using furnace and 180 ºC using hot plate, both treatments for 45 minutes in N2/H2S atmosphere. The X-ray difractograms were analyzed using Match 2 program and showed that the CZTS thin films had kesterit crystalline structure, with a low percentage of CZTS phase. The thin film also contained secondary phases such as Cu2S, ZnS, and SnS. The obtained CZTS thin films had a thickness between 1.039 and 1.676 μm. Absorption study showed that the band gap energy of CZTS thin films which was annealed using furnace ranged from 1.50 to 1.52 eV, whereas that annealed using the hot plate was not observed. The band gap energy value showed that CZTS thin films can be used as sunlight absorber layers on solar cell. The formation of CZTS crystal film on this investigation was effectively performed using furnace annealing process at a temperature of 500 ºC with deposition time of 45 minutes.
Keyword: Thin film, Electrodeposition, Cu2ZnSnS4