Results 11 to 20 of about 1,245,772 (146)
野生动物学报为探究景区旅游活动对野生动物的干扰效应，本研究以贺兰山国家级自然保护区内野生岩羊（Pseudois nayaur）为研究对象，通过量化苏峪口（强干扰区）与岩画（弱干扰区）两处景区的游客密度、道路与设施邻近度评估人为干扰强度，并结合长期行为观测，分析了不同干扰强度下岩羊行为节律的季节性响应。结果表明：在强干扰区，夏季岩羊的取食行为与游客数量呈显著负相关（P < 0.05或P < 0.01），警戒行为（成年雌性除外）与游客数量呈极显著正相关（P < 0.01 ...
祝招玲 +5 more
doaj +2 more sources
干扰素治疗后病毒性肝炎病人#br# 干扰素中和抗体的检测及意义
Zhongshan Daxue xuebao. Yixue kexue ban, 1997 摘 要 使用4 种α-干扰素的98 例病毒性肝炎病人, 在治疗前、治疗期间及治疗后定期检测抗干扰素中和抗 体, 结果发现阳性率为34.7%, 该抗体的产生与病人的性别、年龄、治疗前ALT 水平、肝炎病毒感染类型、以及肝炎的 临床类型均无显著相关;低剂量干扰素较易产生中和抗体;使用不同干扰素制剂产生中和抗体存在差异, 其中以 rIFN-α2a 最高, IFN-αN1 最低;但中和抗体的出现对干扰素的抗病毒疗效影响不大, 由于病例数较少,干扰素治疗期间 ...
徐启桓 彭文伟 陆玮伦
doaj +1 more source
Measuring Governance or Wealth? Construct Validation of AI Readiness Indices
Policy &Internet, Volume 18, Issue 3, September 2026.ABSTRACT Many are the promises of artificial intelligence and the indices claiming to measure government readiness for it. This study provides the first construct validity investigation of the Oxford Insights Government AI Readiness Index, the Tortoise Global AI Index, and the IMF AI Preparedness Index, using a nine‐test battery and drawing on ...
Anis Ben Brik
wiley +1 more source
Wildlife Letters, Volume 4, Issue 3, Page 139-148, September 2026.Asiatic black bears in Russia face conservation threats such as habitat destruction and fragmentation, which exacerbate food shortages caused by crop failures. This study explores an innovative approach to rehabilitating bears that abandon hibernation in mid‐winter due to extreme exhaustion by providing supplemental food near their den sites.
Sergey A. Kolchin +2 more
wiley +1 more source
, 2001 采用高精度差分格式求解非定常可压缩N-S方程,对激波－单涡／双涡相互干扰产生的声场进行了直接数值模拟.详细研究了波－涡干扰声场结构的早期发展阶段,将激波－单涡的计算结果和相应实验进行了对比,并给出近场声压的衰减规律.在此基础上模拟较为复杂的激波－双涡干扰 ...
马延文, 胡国庆, 傅德薰
core +4 more sources
Flexible, Robust Transparent Conductive Films With Excellent Electromagnetic Shielding Properties
Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT Transparent conductive films (TCFs) are indispensable components for next‐generation wearable electronics, intelligent robots, and electromagnetic interference (EMI) shielding devices. However, the fabrication of conventional random metallic mesh suffers from an inherent trade‐off between “randomness and controllability”.
Shanghao Lu +5 more
wiley +1 more source
, 1990 对不可压缩层流二维干扰流动,本文提出一个干扰流动(IF)理论。IF理论要点为:1)干扰流动沿主流的法向被分为三层即粘性层、干扰层和无粘层,引进了法向动量交换为主导过程的干扰层概念。2)利用力学守恒律、三层匹配关系及文中引进的干扰模型,把三层的空间尺度及惯性-粘性诸力的数置级表示为单参数m的函数 ...
高智
core +2 more sources
Journal of Adolescence, Volume 98, Issue 5, Page 1715-1736, July 2026.ABSTRACT Introduction Following rapid iterations in media technologies, Chinese millennials (born between 1980 and 1995) find themselves in a paradoxical state where digital saturation exists alongside fatigue, making them central practitioners of digital minimalist behavior.
Chao Zhang, Yinze Hao, Jingwen Li
wiley +1 more source
Functional Ecology, Volume 40, Issue 7, Page 2068-2082, July 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract Grasslands worldwide are experiencing severe degradation due to overgrazing, climate change and anthropogenic disturbances, resulting in substantial declines in biodiversity and ecosystem functioning.
Xiaoqi Wang +5 more
wiley +1 more source
Wildlife Letters, Volume 4, Issue 2, Page 83-93, June 2026.Birdwatching in Nepal has high potential to support avain biodiversity and tourism. Conservation was identified as the primary motivation for birdwatching, followed by enjoyment and achievement purposes. Health/wellbeing benefits, social and economic factors showed moderate representation, whereas academic motivation played a relatively minor role ...
Kamal Raj Gosai, Hem Bahadur Katuwal
wiley +1 more source