Judul: Faktor-faktor yang Memengaruhi Keputusan Pembelian Roti Merek Sari Roti (Studi Kasus Mahasiswa S1 Institut Pertanian Bogor)
Abstrak: Sari Roti is a bakery product which has many types and flavours produced by Nippon Indosari Corpindo. The purpose of this research is to describe and analyze the factors that influence purchasing decision of Sari Roti brand on BAU’s undergraduate students as consumers. The product’s attributes that are considered in validity and reliability test comprise price, variant, raw material quality, accesibility, product information, “halal” label, texture, taste, brand, expired date information, colour and its flavour. Meanwhile personal influences covered age, gender, pocket money monthly and the credit taken. Descriptive analysis, Fishbein Multi-attribute Attitude Model and Rank Spearman test from one hundred respondents shows that in general five stages of purchasing decision was passed and make expired date clarity into the most important consideration of attributes. Overall, students’s attitude toward Sari Roti brand is positive.
Keyword: Sari Roti brand, influences, decision, attributes

Judul: Faktor-Faktor yang Memengaruhi Keputusan Mahasiswa dalam Membeli Produk Roti Berlabel Halal LPPOM MUI
Abstrak: Roti merupakan salah satu jenis makanan yang menggunakan bahan tambahan makanan sangat kompleks sehingga berpeluang besar masuknya bahan haram ke dalam produk roti. Bahan tambahan makanan yang diharamkan diantaranya margarin dan flavor dari lemak babi, cokelat dari pankreas babi, rhum dari alkohol (khamr), kuas dari kulit babi, dan lisetin pada terigu dari rambut manusia. Angka konsumsi produk roti di Indonesia berdasarkan data statistik Kementerian Pertanian cukup tinggi. Namun, dibandingkan dengan jumlah produsen roti yang belum berlabel halal, jumlah produsen roti yang berlabel halal masih tergolong sedikit. Hasil penelitian dengan metode regresi logistik menunjukkan terdapat empat variabel yang signifikan berpengaruh positif terhadap keputusan mahasiswa dalam membeli roti berlabel halal, diantaranya pengetahuan mengenai makanan halal, pengetahuan mengenai kehalalan roti, loyalitas terhadap label halal, dan pemasukan. Hasil studi menunjukkan pengetahuan mengenai makanan halal, citra LPPOM MUI, kesadaran akan kesehatan, aksesibilitas, dan loyalitas terhadap label halal responden berada pada kategori baik, sedangkan pengetahuan mengenai kehalalan roti responden berada pada kategori kurang baik
Keyword: bakery products, buying decision, halal label, logistic regression method, LPPOM MUI, student

Judul: Hybrid solar cells of ZnO nanoparticles/chlorophyll was modified metal ions (Zn2+ and Cu2+ )
Abstrak: Zinc Oxide (ZnO) is a n-type semiconductor with a wide the energy band (Band Gap) is 3.37 eV at room temperature and 3.34 eV at low temperature with a large exiton binding energy is 60 meV. ZnO has been synthesized by hydrothermal method, resulting in a decrease in particle size over the duration of the hydrothermal changes. Crystallographic structure of ZnO were characterized using XRD, has shown the characteristic pattern of a hexagonal wurtzite structure, the crystallite size increases to changes in particle size. Changes in particle size has also led to a change in the absorption peak of ZnO as has been demonstrated posted under test using the optical properties of UV-Vis spectrophotometer. Changes of this uptake has also led to changes in the energy band gap, which increases its band gap energy of the particle size. In electronic applications, especially in solar cells. Chlorophyll is considered less effective, because of their very nature are easily degraded as a result of several reactions which are acid, lighting and temperature. The results of the stability test using a halogen lamp 34 W/m2 for 5 hours, that the substitution of chlorophyll with metal ions Zn2+ and Cu2+ has been shown to form more stable than natural chlorophyll. The characterization of the optical properties, the combination of ZnO / chlorophyll in the form of hybrid films has led to a shift in the absorption region of ZnO becomes more widely from the UV to Visible. ZnO/chlorophyll has absorption range of 350-515 nm, ZnO / Zn-feofitin 332-401 nm and 332-632 nm for Cu-feofitin. The combination of ZnO/chlorophyll and CuSCN as a solid electrolite in hybrid solar cell, a modified chlorophyll with metal ions Zn2+ and Cu2+ has been shown to form a more stable I-V curve. It is characterized by its fill factor value greater than natural chlorophyll. Nevertheless, solar cells with natural chlorophyll has been able to produce higher efficiency values of chlorophyll were substituted.
Keyword: Hydrothermal, ZnO/Chlorophyll modified, Hybrid Solar Cell