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: Community Participation in Household Waste Management Around Cihideung River, Bogor District
Abstrak: Timbunan sampah yang tidak terkendali dapat menimbulkan pencemaran lingkungan salah satunya pendangkalan air sungai akibat air lindi yang berasal dari sampah. Sungai Cihideung merupakan sungai di Kabupaten Bogor yang berstatus tercemar ringan. Hal ini dapat disebabkan oleh aktivitas antropogenik di sekitar sungai dan tingkat pengelolaan sampah yang rendah. Penelitian betujuan untuk mengindetifikasi kondisi umum pengelolaan sampah rumah tangga, menganalisis tingkat partisipasi dan menganalisis hubungan karakteristik masyarakat dengan tingkat partisipasi masyarakat dalam mengelola sampah di sekitar Sungai Cihideung.. Pengumpulan data dilakukan dengan metode kuesioner dan wawancara dengan pemilihan responden secara purposive sampling. Hasil menunjukan bahwa kondisi pengelolaan sampah rumah tangga cukup buruk dengan keterlibatan dalam retribusi rendah. Rata-rata tingkat partisipasi masyarakat dalam pengelolaan sampah rumah tangga tergolong rendah. Terdapat hubungan nyata antara tingkat partisipasi masyarakat dalam mengelola sampah rumah tangga dengan jenis kelamin, tingkat pendidikan, status, profesi, jarak rumah ke sungai, dan lama tinggal. Tingkat partisipasi berkorelasi kuat dengan status., Uncontrolled midden can cause environmental pollution such as river sitling due to leachate from waste. Cihideung River is one of the rivers located in Bogor District classified as “mildly polluted” that may cause by anthropogenic activities and low levels of waste management. The study aims to identify the general condition of household waste management and analyze community participation and the relationship between community characteristics and community participation in managing waste around the Cihideung River. This study was conducted by questionnaire and interview method. Respondents were selected by purposive sampling. The results showed that household waste management is relatively poor with low involvement in retribution. Community participation level is low on average. There is a significant correlation between community participation in managing household waste with gender, education level, status, occupation, distance from house to river, and length of stay. Community participation level is strongly correlated with status.
Keyword: household waste, management, participation

Judul: Penentuan Nilai Eigen dan Vektor Eigen dari Matriks Tridiagonal 2-Toeplitz dengan Pendekatan Polinomial Chebyshev
Abstrak: The eigenvalues and eigenvectors of a matrix can be determined by finding its characteristic polynomials. The characteristic polynomials of a tridiagonal 2-Toeplitz matrix is shown to be closely connected to polynomials which satisfy the Chebyshev recurrence relationship. If the order of the matrix is odd, then the eigenvalues are found explicitly in terms of the Chebyshev zeros and the eigenvectors are found in terms of the polynomials satisfying the recurrence relationship. For even ordered matrices, the situation is more complicated. The problem in these cases is that although the Chebyshev recurrence formula is still applied, its initial values are not generating Chebyshev polynomials
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