Judul: Analisis Kepuasan Konsumen untuk Meningkatkan Brand Image Brownies Singkong “BrownCo”.
Abstrak: Salah satu jenis bisnis yang diminati yaitu subsektor makanan yang menjadi salah satu alternatif yang baik dalam membangun suatu bisnis. Usaha menengah mr.BrownCo yang melakukan substitusi bahan baku tepung singkong mampu membuat merek baru ini bersaing dengan beberapa pesaing yang sebelumnya sudah ada dalam industri brownies dan cake. Penelitian ini bertujuan mengetahui kategori atribut pelayanan yang sesuai keinginan konsumen dan mengetahui kategori respons teknis yang dapat perusahaan berikan untuk memenuhi atribut pelayanan, serta merumuskan strategi untuk meningkatkan Brand Image. Kategori atribut pelayanan dan respon teknis diidentifikasi melalui penyebaran kuesioner dan dibobotkan melalui metode Quality Function Deployment (QFD). Strategi peningkatan Brand Image dirumuskan melalui hasil Benchmarking dengan memperhatikan hasil analisis QFD. Hasil penelitian menunjukkan bahwa terdapat 19 atribut pelayanan dan 15 atribut respon teknis. Atribut pelayanan yang paling penting untuk diperhatikan adalah atribut halal sedangkan atribut respon teknis yang harus diperhatikan adalah jaminan kualitas produk. Berdasarkan hasil perumusan dan benchmarking, strategi untuk meningkatkan citra merek mr. BrownCo diantaranya adalah membuat regulasi Standar Operasional Procedure, Work Instruction, merancang regulasi pengawasan mutu, serta keamanan pangan.
Keyword: Brand Image, brownies, house of quality, kepuasan konsumen, quality function deployment

Judul: Strategi Pengembangan Usaha Brownies Singkong pada Mr.BrownCo Kabupaten Bogor
Abstrak: This research was held on September 2012 until May 2013. The research aims to identify working condition of Mr.BrownCo in Bogor city by analyzing overall variables that have been identified. Formulating alternative strategy that is appropriate to apply in the development of the work. Respondent determination was done on internal party for two persons, the external party for one person, and ten consumers. Data analysis that has been used in this research are: IE analysis, SWOT, and OSPM. The analysis result shows Mr.BrownCo is in the stage of Grow and Developing. The Strategy that should be done to develop the business by strategy prioritizing is to open Mr.BrownCo new branches in out of Bogor city, doing promotion by using technology that is available (online marketing), also taking part in bazaar activities or exhibitions and cooperate with radio and television ,locally or nationally to introduce the products of Mr.BrownCo. Increasing consumer loyalty by keeping and enhancing products qualities, also always making new innovation, make or offering affordable package, and to give free internet (wifi) facility for the customers.
Keyword: QSPM, SWOT, Strategy

Judul: Dynamical System of Hepatitis B in Three Groups with Vaccination
Abstrak: The aim of this study is to modify the hepatitis B transmission model in three age groups involving vaccination from the model conducted by Zhoe and Zhang.The method used is to analyze the stability of the fixed point and its basic reproduction number (R_0). Performed stability analysis and numerical simulation to see population dynamics. Next, a sensitivity analysis of the parameters was carried out to see its effect on R_0. From the analysis obtained two fixed points, namely non-endemic and endemic fixed points. Non-endemic fixed points are locally asymptotically stable if R_0 <1 Meanwhile, the endemic fixed point is locally asymptotically stable if R_0 > 1. Hepatitis vaccination affects the number of susceptible population, because the more successful the vaccination, the smaller the number of susceptible populations so that the smaller the population will be infected.
Keyword: Dynamic, Hepatitis B, Vaccine, Mathematical model