Judul: Pengaruh Kesejahteraan Keluarga terhadap Investasi Anak pada Keluarga Petani
Abstrak: Child investment will determine how the quality of children and family welfare in the future. This study is aimed to investigation welfare, money investment, and time investment for children in farmer families and the influencing factors. The study was performed in 100 randomly selected families, whose primary school children with age 6-12 years. The results showed that based on the objective welfare, the farmer families could not be categorized as poor families. Education and health facilities for primary school children are in the middle category. Education expending proportion for primary school children 7.14 percent dan health expending 0.51 percent. On average, the mothers and fathers, respectively, spend 2 hours 3 minutes and 1 hour 29 minutes per day on children care. Logistic regression results showed that the increase of the family size would reduce the family welfare. Furthermore, the results of multiple linear regression revealed that age child increase, long mothers education, price asset increase, and objective welfare would increase spending for money investment. In addition, increasing child age and the objective welfare tend to reduce the time investment. However, we found that longer mothers education will increase the time investment in children.
Keyword: time investment, objective welfare, money investment

Judul: Pengaruh Investasi anak terhadap Kesejahteraan anak di keluarga tenaga kerja wanita (Tkw)
Abstrak: Investasi yang dilakukan orang tua dapat berupa materi dan non materi. Tujuan dilakukannya investasi adalah mewujudkan anak yang sejahtera dan berkualitas. Penelitian ini bertujuan untuk menganalisis pengaruh fasilitas pendidikan dan kesehatan anak, alokasi pengeluaran pendidikan dan kesehatan anak, serta alokasi waktu pengasuhan ayah terhadap kesejahteraan anak. Penelitian ini melibatkan 60 keluarga TKW yang memiliki anak usia remaja (12-14 tahun) yang dipilih secara purposif. Responden dalam penelitian ini adalah ayah dan anak. Hasil analisis linier berganda menunjukkan bahwa fasilitas pendidikan dan kesehatan tidak berpengaruh signifikan terhadap kesejahteraan anak. Sementara itu, alokasi pengeluaran dan kesehatan serta alokasi waktu pengasuhan ayah berpengaruh positif signifikan terhadap kesejahteraan anak subjektif, The investment used by parents are material and non material. The aim of doing investment are to achieve a well-being and qualified children. The research aimed to analyze the effects of health and education facilities for children, the allocation of expenditure for health and children education, and time of father’s parenting toward children well-being. This research involved 60 woman migran families whose adolescent age children (12-14 years old) were selected purposively. Respondents in this research were fathers and child. The regression analysis showed that health and education fasilities for child had not significant effect on child well-being. Meanwhile, allocation of expenditure for health and education children and time of father’s parenting had significant effect on subjective child well-being.
Keyword: investasi anak, keluarga TKW, kesejahteraan anak

Judul: Hydrothermal Synthesis of Biphasic Calcium Posphate
Abstrak: Biphasio calsium phosphate (BCP), which was a mixture of hydroxypatite (HA) and tricalcium phosphate (TCP), was synthesized by hydrothermal method followed by sintering process. Hydroxyapatite was produced by using natural calcium source CaO from hen's eggshell and (NH4)2HPO4 as phosphate souce, other hydroxyapatite sample was produce by using synthetic calcium source Ca(OH) and H3PO4 as phosphate source.
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