نتایج جستجو برای: toys
تعداد نتایج: 1987 فیلتر نتایج به سال:
introduction: recent investigations have detected the presence of significant levels of heavy metals (chromium, lead and cadmium) in toys and other pvc products manufactured for children. in some countries, addition of compounds containing toxic metals to toys are limited or prohibited. methods: to evaluate the safety of some of the plastic toys in the city of isfahan with respect to toxic trac...
Introduction: Recent investigations have detected the presence of significant levels of heavy metals (chromium, lead and cadmium) in toys and other PVC products manufactured for children. In some countries, addition of compounds containing toxic metals to toys are limited or prohibited. Methods: To evaluate the safety of some of the plastic toys in the city of Isfahan with respect to toxic tr...
Aim: STEM has attracted great consideration. The purpose of research is: (i) study STEM education; (ii) explore STEM education with the creative and experiential activity; (iii) suggest applying STEM education by designing technical toys for the middle school student. Study Design: This study used a qualitative approach to carry out teaching integration for STEM education. Place and Duration of...
for children kept in bed during an illness, together with a list of appropriate toys at different ages, will be welcomed by mothers and nurses and should help to solve at least one of their problems which arise at such times. It can be obtained (price 3d. post free) from the N.A.M.H. Publications Department, 39 Queen Anne Street, W.l, or direct from Children's Play Activities, 94 Wimpole Street...
Sixty-two first and second grade students (28 boys, 34 girls) were exposed to one of three commercial videotapes in which either all-boys (traditional condition) or all-girls (nontraditional) were playing with a toy. Participants in the control condition were exposed to nontoy commercials. After exposure to one of the conditions participants performed a toy sort where they were asked if six toy...
The waiting rooms of general practitioners' surgeries usually have toys provided for children. The level of contamination of these toys and the effectiveness of toy decontamination was investigated in this study. Hard toys from general practitioners' waiting rooms had relatively low levels of contamination, with only 13.5% of toys showing any coliform counts. There were no hard toys with heavy ...
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