Judul: Hubungan pengasuhan anak dan prestasi belajar anak di Taman kanak - Kanak Pertiwi III, Bogor
Abstrak: Tujuan Penelitian ini adalah untuk mengetahui hubungan antara tingkat pendidikan formal ibu dan jumlah anggota keluarga dengan pengasuhan anak, hubungan pengasuhan anak dengan prestasi belajar anak, serta mengetahui hubungan pendapatan perkapita dan status gizi anak dengan prestasi belajar anak. Penelitian ini dilakukan pada pertengahan bulan Agustus sampai dengan akhir bulan Oktober 1986. Pengambilan sampel dilakukan secara Acak Distratifikasi berdasarkan tingkat pendidikan formal terakhir ibu dari anak TK yang bersangkutan. Pengambilan sampel dari setiap stratum di- lakukan secara acak tidak berimbang. Jumlah sampel ditentukan sebanyak 40 orang murid TK dari klas C. Pengambilan data pengasuhan anak dilakukan dengan cara wawancara langsung dengan ibu yang bersangkutan, dengan menggunakan daftar pertanyaan yang telah disiapkan. Data tentang keadaan TK dan prestasi belajar anak dipero- leh dengan cara melakukan wawancara dengan kepala sekolah dan para guru TK, serta dengan melihat nilai pada delapan bidang pengembangan studi dari rapor anak TK. Data penda- patan perkapita dan jumlah anggota keluarga diperoleh melalui wawancara dengan ibu dari anak TK yang bersangkutan, sedangkan data status gizi anak diperoleh dengan cara melakukan pengukuran berat badan dan tinggi badan anak. Selanjutnya untuk menguji hipotesis-hipotesis dalam penelitian ini digunakan uji uji statistik Kai Kuadrat dan Korelasi Spearman…dst
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Judul: Hubungan Pola Asuh Dan Ketersediaan Alat Stimulasi Akademik Dengan Prestasi Akademik Remaja Yang Memiliki Perbedaan Latar Belakang Pendidikan Prasekolah
Abstrak: The research was a part of a study that had been conducted at year 2006, which involve three group of children with different preschool education background namely group Semai Benih Bangsa (SBB) and Taman Kanak Kanak (TK) who were children with a preschool background, and group non TK or control who were children with no preschool background. SBB were a preschool group established by Indonesia Heritage Foundation for the poor children and using holistic education approach, which in Bogor area located at Kelurahan Sukasari and Desa Situ Udik. The samples of this research at previous study (Hastuti 2006) were 356 children, and for this research out of 356 samples it was selected only children at the two locations. The criteria for sample of this study was youth age 11-16 years, and still have an education. Out of 116 samples only 87 children served as sample of this study, 27 samples of SBB, 31 children of TK and 29 of non-TK. The research aimed to identify parenting in academic dimension (self discipline and excellence orientation) at the three groups, academic stimulation, academic achievement at the three groups and relationship between variables. Analysis of ANOVA, kruskall wallis were applied to analyze differences among three groups, while Pearson correlation were applied to analyze relationship among variables. Result showed that there were significant differences in term of socio economic characteristics (maternal education and family income) among three groups, and in term of academic stimulation, which showed that the socio economic status related to their ability to provide books, computers, academic utensils and activities. Background of preschool education had no relationship with academic achievement, meanwhile socio economic status and academic stimulation had significant and positive relationship with academic achievement of youth.
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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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