目的调查城镇留守儿童的社交焦虑与孤独感状况。方法对海口市美兰区9所学校4~6年级204名城镇留守儿童采用儿童社交焦虑量表(Social Anxiety Scale for Children SASC)及儿童孤独感量表进行评定,并选取相同年级的234名非留守儿童为对照...目的调查城镇留守儿童的社交焦虑与孤独感状况。方法对海口市美兰区9所学校4~6年级204名城镇留守儿童采用儿童社交焦虑量表(Social Anxiety Scale for Children SASC)及儿童孤独感量表进行评定,并选取相同年级的234名非留守儿童为对照组。结果留守儿童社交焦虑及孤独感量总分均明显高于对照组。结论留守儿童更容易出现社交焦虑及孤独感,应给予城镇留守儿童更多心理关注。展开更多
This work reported a convenient method for the preparation of enantiomerically pure 6-aryl-2,2'-dihydroxy-1, l'- binaphthyl derivatives starting from the commercially available (R)-2,2'-hydroxy-l, l'-binaphthyl ...This work reported a convenient method for the preparation of enantiomerically pure 6-aryl-2,2'-dihydroxy-1, l'- binaphthyl derivatives starting from the commercially available (R)-2,2'-hydroxy-l, l'-binaphthyl [(R)-I] via bromi- nation, hydrolysis and Suzuki cross coupling reaction. This novel synthetie method was characterized with high re- gioselectivity, simple operation, mild reaction conditions, and excellent yield (up to 73%). On the other hand, we synthesized the target unknown compounds, which were confirmed by IR, 1H NMR, 13C NMR, MS and elementary analysis.展开更多
文摘目的调查城镇留守儿童的社交焦虑与孤独感状况。方法对海口市美兰区9所学校4~6年级204名城镇留守儿童采用儿童社交焦虑量表(Social Anxiety Scale for Children SASC)及儿童孤独感量表进行评定,并选取相同年级的234名非留守儿童为对照组。结果留守儿童社交焦虑及孤独感量总分均明显高于对照组。结论留守儿童更容易出现社交焦虑及孤独感,应给予城镇留守儿童更多心理关注。
文摘This work reported a convenient method for the preparation of enantiomerically pure 6-aryl-2,2'-dihydroxy-1, l'- binaphthyl derivatives starting from the commercially available (R)-2,2'-hydroxy-l, l'-binaphthyl [(R)-I] via bromi- nation, hydrolysis and Suzuki cross coupling reaction. This novel synthetie method was characterized with high re- gioselectivity, simple operation, mild reaction conditions, and excellent yield (up to 73%). On the other hand, we synthesized the target unknown compounds, which were confirmed by IR, 1H NMR, 13C NMR, MS and elementary analysis.