Judul: The Effectiveness of Outdoor Media on Community Behavior in Dispose of Waste (Case: Ciliwung's River Bank, Sempur Village, Central Bogor Subdistrict, Bogor City, West Java)
Abstrak: Media luar ruang merupakan media penyampai pesan atau informasi yang memiliki berbagai karakteristik pesan dan diletakkan di ruang terbuka yang cukup strategis agar dapat menjangkau khalayak luas. Media luar ruang sering digunakan sebagai alat yang dapat mengubah perilaku seseorang. Sebagaimana maraknya pemasangan media luar ruang di tepi sungai yang berisi larangan membuang sampah sembarangan. Hal tersebut ditujukan agar masyarakat memiliki perilaku yang baik dalam membuang sampah. Penelitian ini bertujuan untuk menganalisis karakteristik individu dan karakteristik pesan yang memiliki hubungan terhadap intensi dan perilaku masyarakat dalam membuang sampah. Penelitian ini menggunakan pendekatan kuantitatif yang dilakukan menggunakan kuesioner dan didukung dengan data kualitatif melalui wawancara mendalam serta observasi. Hasil penelitian menunjukkan bahwa tidak ada hubungan antara karakteristik individu maupun karakteristik pesan dengan intensi. Namun, intensi memiliki hubungan dengan perilaku masyarakat dalam membuang sampah., Outdoor media is a medium for delivering messages or information that has various message characteristics and is placed in an open space that is strategic enough to reach a wide audience. Outdoor media is often used as a tool to be able to change a person's behavior. Like the rampant installation of outdoor media on the banks of the river which prohibits littering. This is intended so that people have good behavior in disposing of waste. This study aims to analyze individual characteristics and message characteristics that have a relationship with people's intentions and behavior in disposing of waste. This research uses a quantitative approach which is carried out using a questionnaire and is supported by qualitative data through in-depth interviews and observations. The results showed that there was no relationship between individual characteristics and message characteristics with intention. However, intention has a relationship with people's behavior in disposing of waste.
Keyword: community behavior, dispose of waste, outdoor media

Judul: Analisis Perilaku Nasabah Bank Sampah (Studi Kasus: Bank Sampah Sejahtera, Kelurahan Kedungbadak, Kota Bogor Provinsi Jawa Barat)
Abstrak: A lot of waste banks flourished throughout cities and villages in Indonesia. Many believe that the waste bank could effectively solve the domestic waste problems in Indonesia. However, some waste banks are unsustainable after a few years. This study observes the background situation of the waste bank from the social psychology point of view. First, the study aims to analyze the influence of bank customers' attitudes, subjective norms, and behavioural control on the intention to handle domestic waste. Second, to analyze the effect of behavioural control, the intention, waste bank management to handle domestic waste. A social survey type of research is applied. Amount of 30 respondents of the Sejahtera Waste Bank's members in Kedungbadak Village, Bogor, were interviewed using a questionnaire. In addition, in-depth interviews with informants were also applied. To test the hypotheses, a multiple regression analysis was applied. The results show that, first, all three variabels simultaneously affect the bank customers' intention to handle domestic waste. Second, it is found that the intention, control behaviour, and waste bank management of the bank customer simultaneously affect the emergence of waste handling behaviour.
Keyword: attitude, subjective norms, controll behavior, intention, waste bank management,behavioror

Judul: igenvalues and Eigenvectors of Tridiagonal Matrix with Non Constant and Recurrent Diagonal Entries.
Abstrak: Matriks tridiagonal adalah suatu matriks yang mempunyai entri-entri bernilai nol kecuali pada diagonal utama, di bawah diagonal utama (subdiagonal) dan di atas diagonal utama (superdiagonal). Entri pada diagonal utama tidak konstan dan berulang. Setiap entri pada matriks tridiagonal ini adalah bilangan kompleks. Dalam karya ilmiah ini, akan dibuktikan 3 teorema untuk menentukan nilai eigen dengan 2 kasus dan 1 teorema untuk menentukan vektor eigen. Teorema pertama menentukan polinomial karakteristik dari matriks tridiagonal. Polinomial karakteristik dari matriks tridiagonal tersebut digunakan untuk menentukan nilai eigen pada teorema kedua dan ketiga serta menentukan vektor eigen pada teorema keempat
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