Results 11 to 20 of about 7,214 (105)
Conservation Biology, Volume 37, Issue 1, February 2023., 2023 Abstract Invasive species can dramatically alter ecosystems, but eradication is difficult, and suppression is expensive once they are established. Uncertainties in the potential for expansion and impacts by an invader can lead to delayed and inadequate suppression, allowing for establishment.
Brian D. Healy +5 more
wiley +1 more source
Conservation Biology, Volume 36, Issue 4, August 2022., 2022 Abstract As ecological data and associated analyses become more widely available, synthesizing results for effective communication with stakeholders is essential. In the case of wildlife corridors, managers in human‐dominated landscapes need to identify both the locations of corridors and multiple stakeholders for effective oversight.
Jay M. Schoen +13 more
wiley +1 more source
Developmental Medicine &Child Neurology, Volume 61, Issue 3, Page E1-E35, March 2019., 2019 目的 本国际临床指南由欧洲残疾儿童学会（the European Academy of Childhood Disability，EACD）牵头制定，旨在解决发育性协调障碍（developmental coordination disorder，DCD）的定义、诊断、评估、干预以及与社会心理方面的临床应用关键问题。 方法 本指南针对五个领域的关键问题，通过文献综述和专家团队的正式讨论达成共识。为保证指南的循证基础，以“机制”、“评估”和“干预”为检索词, 对2012年更新以来提出的最新建议以及新增的“社会心理问题”和“青少年/成人”为检索词进行检索。根据牛津大学循证医学中心证据等级 (证据水平 [level of evidence, LOE]1–4) 将结果进行分类，最终转化为指南建议。并由国际 ...
Jing Hua +6 more
wiley +1 more source
Beyond Motivation: Modeling the Predictive Role of L2 Pride in Informal Digital Learning of English
International Journal of Applied Linguistics, Volume 35, Issue 4, Page 1938-1952, November 2025.ABSTRACT This study investigates the role of second language (L2) pride—an understudied affective factor—in shaping learners’ language learning motivation and involvement with informal digital learning of English (IDLE). Drawing on questionnaire data from 1388 Chinese university EFL students, the study employs structural equation modeling to examine ...
Minlin Minny Zou +3 more
wiley +1 more source
Implications of Tobacco Use on Pathogen‐Driven Diseases: A Public Health and Policy Perspective
World Medical &Health Policy, Volume 17, Issue 3, Page 468-474, September 2025.ABSTRACT The tobacco epidemic remains one of the most significant global public health challenges, responsible for over 8 million deaths annually, with a substantial portion occurring among non‐smokers exposed to second‐hand smoke. While cigarette smoking remains the most prevalent form of tobacco use worldwide, the rise of electronic nicotine delivery
Nadine Kabbani, James L. Olds
wiley +1 more source
Policy &Internet, Volume 16, Issue 3, Page 485-508, September 2024.Abstract During the COVID‐19 pandemic, some groups and individuals rearticulated state power through conspiracy theories. Despite their fringe status, conspiracy theory beliefs can directly animate citizen's engagements with institutions. Drawing on Barkun's ‘conventional’ and ‘stigmatised’ knowledge types, we analyse the appearance of conspiracism in ...
Ben Lyall, Patrick Marple
wiley +1 more source
Gaoya dianqi, 2019 深井接地极因占地面积小,选址容易的优点,具有很高的工程实用价值。由于单根深井接地极最大对角线距离不到1 m,明显不宜直接采用规程推荐的5倍对角线距离人工布线测量接地电阻。为此,文中建立了直流深井接地极模型,仿真计算了其接地电阻和地表电位分布,基于之提出了电流极距离要求;建立了深井接地极注流、电流极回流的模型,研究了接地电阻测量过程中深井接地极和电流极共同作用下的地表电位分布规律;结合深井接地极接地电阻的仿真计算值,分析获得了电压极的布置要求。改变电流极和电压极的位置,研究了测量误差与布线距离之间的关系 ...
陈家峰 +6 more
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Dianci bileiqi, 2021 接地电阻是表征风电机组接地装置性能的一个重要指标。笔者建议了一种计算风电机组接地电阻的有效计算方法,即模拟电流算法。该算法将机组接地装置中各接地体分段离散化,分别在各接地体和不均匀土壤分界面两侧设置模拟电流,从恒定电场的边界条件入手,建立模拟电流所满足的方程组,求取模拟电流,再由模拟电流来确定接地电阻。将按该算法得到的接地电阻值分别与实测值和专业软件CDEGS计算值进行了对比,以校验该算法的可行性。
郭子璇, 张小青
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Dianci bileiqi, 2019 随着电网输送距离的增大,输电线路不可避免要跨域河流、山地等复杂地形,准确计算复杂土壤结构中杆塔接地装置的接地参数及其冲击散流特性是输电线路杆塔接地装置优化设计的基础。本文基于有限元数值计算方法,建立了考虑河流、山体的块状土壤结构模型,对接地装置散流过程土壤中电流密度和电场强度进行分析;并对河流与接地装置的距离、山体的坡度、山体顶面积对接地装置冲击接地电阻的影响进行定量的分析。结果表明:高土壤电阻率地区,接地装置与河流距离小于5 m时,河流对接地装置散流以及冲击接地电阻影响较明显;当山体顶面积为20 m ...
李景丽 +4 more
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Dianci bileiqi, 2021 接地电流是判断高压电缆接地方式是否正确的重要指标之一。笔者介绍了一起220 kV海陆缆混合线路接地电流异常事件,分析了该线路陆缆段中间接头和海陆缆对接头多处接地电流存在严重的三相不平衡现象产生的原因,并给出了接地方式优化方案。线路消缺后接地电流恢复正常,验证了所提出的处理措施的正确性。该起接地电流缺陷及其处理方案为采用海陆缆对接方式线路的接地方式选择提供了经验。
李乃一 +6 more
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