Trends in types of dermatology books available over the last ten years.
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Shifts in interest toward cosmetic and surgical dermatology and away from medical and academic dermatology have been observed in recent years. We hypothesized that this trend would be evident in the types of books available for purchase from a major medical textbook supplier. Books published from 1998-2008 were categorized by type and statistical testing was performed to determine if this trend has been reflected in books published. The percentage of medical dermatology books decreased over time, whereas the percentage of cosmetic and surgical dermatology books increased over time. (+info)
Frontal brain activation in young children during picture book reading with their mothers.
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Study of experiment on leaching of bisphenol A from infant books to artificial saliva.
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OBJECTIVE: To assess the risk of bisphenol A (BPA) exposure when infants suck or chew infant books, the concentration of BPA leaching from infant books published by Japanese makers to artificial saliva was measured. METHODS: The concentration of BPA leaching from 10 infant books to 15 ml artificial saliva or water was measured at 37 degrees C for 20 hrs. BPA concentration was measured by high-performance liquid chromatography-electrochemical detection (HPLC-ECD) with solid-phase extraction. RESULTS: BPA was leached from all books when pieces of them were dipped both into saliva and water for 20 hrs. The highest concentration of BPA leaching from one out of 10 books was 43.4 ng/ml (for 2 hrs) in saliva, which was estimated to be approximately 0.052 mg/kg body weight/day for infants aged 6-10 months. CONCLUSION: As BPA has endocrine-disrupting effects and poses higher risks in infants than in adults, it is desired to reduce BPA use in the printing of infant books from the viewpoint of child health. (+info)
Six-year follow-up of a preventive intervention for parentally bereaved youths: a randomized controlled trial.
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