Results 121 to 130 of about 996,689 (164)
, 2005 本文利用改良的石蜡包埋切片染色技术,对太平洋日本沿岸收集到的286头斑点原海豚(Stenellaat-tenuata)的牙齿标本进行了年龄鉴定,定义了斑点原海豚的牙齿质和牙骨质生长层组(GLGs)。从年龄和生长的角度对斑点原海豚的一些种群生物学特征进行了分析,并推算了部分种群参数。斑点原海豚在约18龄时,牙齿质停止生长,牙髓腔封闭。牙齿质中计数到的GLGs最多为18层,牙骨质中计数到的最多为42层。斑点原海豚的年龄与生长在一定范围内遵循一定的幂函数关系。5-6龄以前,斑点原海豚生长迅速 ...
李海燕,张先锋,加藤秀弘,岩崎俊秀
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[The study of detection and etiology of delayed sensorineural hearing loss in children]. [PDF]
Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za ZhiHu Y, Xia Z, Yao C.
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[Analyzing the factors influencing speech recognition ability in patients with age-related hearing loss]. [PDF]
Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za ZhiZhang W, Yu S.
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Zhongshan Daxue xuebao. Yixue kexue ban, 2015 摘 要: 【目的】 获得正常人中央筛板厚度的活体测量结果并分析性别?眼别?年龄对其的影响?【方法】 收集正常人85例85眼进行常规眼部检查及频域光学相干断层扫描仪(SDOCT)检查,采用增强型深度成像(EDI)模式对视乳头中央进行水平和垂直线性扫描,选取图像清晰者保存?获取正常人中央筛板厚度(LCT)的活体数据;比较不同性别?眼别间筛板厚度的差异;比较不同年龄段筛板厚度的差异;相关分析法分析屈光度?眼压及年龄与筛板厚度的相关性? 【结果】 总体正常人平均年龄(50 ± 18)岁,平均筛板厚度(232 ±
doaj
Identification of spontaneous age-related cataract in Microtus fortis. [PDF]
Zhong Nan Da Xue Xue Bao Yi Xue BanHe T +9 more
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[Neurodevelopmental catch-up status and correction termination age in preterm infants of different gestational ages]. [PDF]
Zhongguo Dang Dai Er Ke Za ZhiCheng W +4 more
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, 2004 为了考察注意能力的年龄差异,分别从注意分配能力和注意选择能力两个方面对青年和老年被试的表现进行了比较.结果表明:青、老年在注意分配能力上没有显著的差异;而青、老年在注意选择能力上却有显著的差异,老年的注意选择能力有显著的衰退.因此 ...
焦书兰, 罗婷
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[Trends in the incidence and mortality of rheumatoid arthritis in China from 1990 to 2021: An age<b>-</b>period<b>-</b>cohort analysis]. [PDF]
Zhong Nan Da Xue Xue Bao Yi Xue BanDou X, Cui W, Han Z, Che Z, Li X, Guo H.
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[A study of mismatched negative in normal hearing patients of different ages]. [PDF]
Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za ZhiZhang L, Xu L, Guan B, Jiao C, Zhu B.
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