Judul: Implementasi Kebijakan Keselamatan dan Kesehatan Kerja pada Industri Mebel Skala Mikro dan Kecil di Kabupaten Jepara
Abstrak: Industri mebel Jepara berskala mikro dan kecil sangat penting bagi Kabupaten Jepara, karena mampu menciptakan lapangan kerja bagi 280-350 ribu usia produktif. Kontribusi nyata sektor industri mebel ini pada Produk Domestik Regional Bruto Jepara mencapai lebih 22,6% pada tahun 2010. Para pekerja di industri mebel berperan penting di balik kondisi ini. Kondisi tempat kerja industri mebel kayu menunjukkan kondisi yang tidak aman. Namun upaya perlindungan terhadap Keselamatan dan Kesehatan Kerja (K3) bagi para pekerja belum tampak. Penelitian dengan pendekatan kualitatif ini menguraikan implementasi kebijakan K3 di industri mebel kayu di Jepara, mengidentifikasi aktor yang terlibat dalam kebijakan K3 dan menemukan alternatif strategi pengembangan K3. Informan dalam penelitian ini adalah para pekerja di industri mebel, pemilik/pengurus usaha mebel, lembaga legilatif, dinas tenaga kerja, dinas kesehatan, puskesmas, perguruan tinggi dan LSM. Hasil penelitian menunjukkan bahwa perlindungan K3 belum diterapkan pada industri mebel skala mikro dan kecil. Faktor-faktor yang mempengaruhinya antara lain terkait dengan masalah yang tidak mudah dikendalikan menyangkut perilaku, kebijakan yang ada saat ini belum dapat menstrukturkan implementasi dan faktor di luar kebijakan seperti kondisi sosial ekonomi pekerja. Alternatif strategi implementasi K3 yang disarankan yakni peningkatan kesadaran para pekerja dan pemilik/pengurus usaha tentang K3, peningkatan kapasitas pemda baik kualitas maupun kuantitas dalam menjalankan fungsinya dalam implementasi K3, pelibatan para pemilik/pengurus usaha melalui asosiasinya untuk mengintegrasikan K3 dalam aspek bisnisnya, dan penyusunan perda tentang K3 di Jepara.
Keyword: kebijakan, keselamatan dan kesehatan kerja (K3), industri mebel kayu skala mikro dan kecil, Jepara

Judul: Identifikasi Kondisi Lingkungan Kerja dan Persepsi Pekerja Industri Mebel Kayu Jati terhadap Perlindungan K3 di Kabupaten Jepara
Abstrak: The forestry sector is an activity that has a high level of risk because of work must be faced with the difficult working conditions. One of the works included in the forestry sector is the timber industry, or better known as the furniture industry. Event furniture industry consists of activities forming component (sawmill), sanding and finishing. These activities can lead to potential accidents at work if the worker does not understand the dangers that can occur from these activities, and therefore required considerable knowledge of occupational safety and health (OSH) protection to prevent accidents. This study aims to describe the working conditions and the general perception of the teak wood furniture industry workers about OSH protection in the Mulyoharjo Village Regency of Jepara. Collecting data in this study was obtained through in-depth interviews about the occupational safety and health protection against 90 respondents were included in the category of workers with the types of activities such as the formation of the components (sawmill), sanding and finishing. The results obtained in this study showed a dangerous working conditions with physical and chemical factors values above threshold value and the presence of significant difference between the value of self-assessment and control value-based assessment in which respondents are overestimates and has a poor level of knowledge.
Keyword: working conditions, occupational health and safety, industry

Judul: Hamiltonian formulation for linear waves motion in two layers fluid
Abstrak: The surface wave could be considered as a wave that separates two fluids, namely water and air. Based on this assumption, it is introduced the interfacial wave, a wave between two layers of fluid with different density. The formulation of interfacial waves motion begins with deriving the base equation of irrotational ideal fluid. Furthermore, according to irrotational fluid assumption, the base equation can be stated in velocity potential. In this derivation, the fluids domain is assumed to be restricted by rigid lid boundary conditions, both at the upper and lower limit. Therefore, the interfacial waves motion can be explained in a hamiltonian formulation. In the hamiltonian formulation, total energy is defined as the sum of kinetic and potential energy. The hamiltonian system is obtained from reduction of kinetic energy by using the Dirichlet Neumann Operator. The resulted kinetic energy equation is nonlinear. Therefore, this form is linearized by first part of the Taylor expansion. This linearization gives a dispersion relation of linear wave. Based on this dispersion relation, the phase speed of the linear wave depends on the density ratio of the two layers fluid.
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