Results 21 to 30 of about 1,203,746 (156)
, 1991 本工作试图从想象的丰富性和特点来比较想象的年龄差异。被试共45例,分三个年龄组(少年、青年和老年),每组15例(男8、女7)。测试材料为抽象直线图形和Droodles.结果表明:①对图想象的总数随增龄而减少;②不同年龄组想象的内容有不同倾向;③对图形想象的种类和新颖性随增龄而减少;④老年组想象的整体性明显低于青年组和少年组,后两组相接近。可见,少年具有想象丰富、活跃和新颖的特点,在教育工作中应予重视 ...
孙长华 +3 more
core +1 more source
Conservation Biology, Volume 40, Issue 4, August 2026.Abstract The design of experiments to investigate the combined effects of multiple stressors requires exposing target organisms to multiple combinations of stressor doses. Concurrent manipulation of stressors is often infeasible with wildlife, but long‐lasting health effects allow individual health to be used as an integrator of prior stressor exposure.
Enrico Pirotta +24 more
wiley +1 more source
四川大学学报. 自然科学版, 2002 根据2001和2002两年间6个月的标志重捕资料,在对分布于四川西北部若尔盖草原的青海沙蜥(Phrynocephalusvlangalii)的体长、体重和尾长3组数据进行相关分析的基础上,分别对这3组数据进行聚类分析.最后选取体长的聚类分析结果把青海沙蜥的所有个体分成3个年龄组,3个年龄组的体长范围分别是:26～36mm;37～50mm;51～65mm.各年龄组体长、体重和尾长平均值差异的F检验结果,说明用体长划分年龄较为合理.青海沙蜥种群的年龄结构基本上呈金字塔形,但第II年龄组个体数比例较小 ...
吴鹏飞 +6 more
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Conservation Biology, Volume 40, Issue 4, August 2026.Abstract Bycatch in fisheries is one of the most serious threats to pelagic seabirds, causing major population declines. Mitigation measures can reduce bycatch substantially, but many fisheries fail to apply best practices, and seabird mortality remains high.
V. Warwick‐Evans +2 more
wiley +1 more source
Assessing differences among elasmobranch nurseries to aid conservation based on a genomics framework
Conservation Biology, Volume 40, Issue 4, August 2026.Abstract Elasmobranch nurseries often differ in environmental conditions, demographics, and use patterns. These differences affect the distribution of genetic variation among nurseries. However, conservation and management strategies often fail to account for such differences because they are difficult to characterize.
Dominic G. Swift +8 more
wiley +1 more source
, 1997 自编了《自我概念问卷》（SCQ），对初中以上文化程度604名20—94岁成年人进行了年龄差异研究。结果表明：1．SCQ信度和效度基本合格。以因素分析法将问卷归结为（1）自我意识（SC）、（2）自觉精神状态（MS）、（3）自制与自尊（CN与SE）、（4）自我力量（ES）、（5）自觉能力（CA）五个分量表。2．CN与SE随增龄显著增强，CA随年老明显降低，MS各年龄组间无区别。SC中年组高于两老年组，ES中年组高于青年组，提示中年期是自我概念发展最佳时期，老年期尚保持相对完好的自我。3．除自我意识外 ...
孙长华 +3 more
core +1 more source
Zhongguo shiyan zhenduanxue, 2011 目的分析健康成人血清ALP活性,探讨ALP水平在成人性别和年龄的分布规律。方法随机选择2008年来吉大一院健康体检各项指标正常的健康人19416例,对其血清ALP活性进行回顾性统计分析。结果 21-50岁男性ALP值显著高于同年龄组女性 ...
吉利, 连丽丽, 孙淑艳, 孙小慧
doaj
How identity bias affects perceptions of conservation messages on social media
Conservation Biology, Volume 40, Issue 4, August 2026.Abstract Public support is essential for conservation, as public opinion can influence decision‐making and policy. Therefore, understanding whether bias toward conservationists due to their identity (identity bias) affects their perceived credibility and support for their recommendations is important.
Lauren F. Rudd +4 more
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2002 目的 对不同年龄段老年性骨质疏松的诊断提供定量CT骨密度范围值。方法 用日本ST5 0 0 0TCT扫描机检测 184例 6 0～ 79岁老年腰椎 2 - 4椎体定量CT。结果 随年龄增长腰椎骨密度定量CT值下降 ,女性较男性更明显。男性 82例 ,女性 10 2例。结论 骨质疏松与年龄呈正相关 ...
韩邕, 吕全勇, 孟令辉, 张光
doaj
Zhongguo shiyan zhenduanxue, 2020 目的探讨育龄妇女和新生儿TORCH的感染情况。方法对2012至2018年在广东医科大学附属医院接受TORCH筛查的育龄妇女和新生儿的资料进行回顾分析,统计检查结果。结果育龄妇女2012至2018年的风疹病毒、巨细胞病毒IgG抗体各年份的阳性率均高于刚地弓形虫、单纯疱疹病毒(P0.05)。育龄妇女低龄组HSVⅠ/Ⅱ-IgM阳性率高于高龄组,差异具有统计学意义 ...
刘丽琴, 黄必堂, 钟琼
doaj