检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
机构地区:[1]天津师范大学物理系
出 处:《天津师大学报(自然科学版)》1996年第2期22-25,共4页
摘 要:用源激发X射线荧光分析法(XRF)测定了A组学生(成绩优良者)和B组学生(成绩一般者)头发中Zn的含量,其结果表明,A组学生Zn的含量显著高于B组,这说明Zn元素对神经系统的发育有一定影响.用同样的方法又测定了C组学生(男性学生)和D组学生(女性学生)头发中Ca的含量,结果表明,C组学生Ca的含量显著低于D组,这说明男性和女性对Ca的需求明显不同.以上结果与现代医学理论相一致.The contents of Zn and Ca in hair of 120 Students have been determined byXRF. It was found that the Zn level in hair of excellent students was significantly higherthan that of average students and the Ca level in hair of female students was significantlyhigher than that of male students. The results of the test and analysis were consistant withthat in the theory of modern medical science.
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.249