Results 21 to 30 of about 2,333,295 (153)
Compliance in Regulatory Gray Areas: The Case of the Organic Seed Standard
ABSTRACT Adaptive regulations, designed to balance flexibility with accountability, can embed provisions that unintentionally leave room for firms to shirk on their responsibilities by exploiting flexibility. We call these provisions “regulatory gray areas,” and ask: how should we understand (non‐)compliance in adaptive regulatory settings?
Liza Wood +3 more
wiley +1 more source
整合素是一类介导细胞-细胞、细胞-胞外基质以及细胞-病原体间粘附和信息传递的粘附分子,在炎症反应和肿瘤转移等许多病理生理过程中起着重要的作用。β2整合素是整合素的一个亚族,主要参与白细胞与内皮细胞、免疫细胞或者靶细胞间的粘附;细胞间粘附分子-1(ICAM-1)是β2整合素一种重要的配体 ...
吕守芹 +4 more
core +1 more source
ABSTRACT Surface‐enhanced Raman scattering (SERS) has emerged as a highly sensitive and specific technique for tumor imaging, owing to its narrow spectral features, resistance to photobleaching, and capability for multiplexed detection. However, its clinical translation remains limited by poor tissue penetration and the absence of intrinsic anatomical ...
Xinyu Miao +7 more
wiley +1 more source
Inverse Thermal Softening Behavior in a High‐Entropy Alloy Under Various Strain Rates
ABSTRACT Although face‐centered cubic high‐entropy alloys (HEAs) have received extensive attention and in‐depth research, most existing studies focus on single temperature or strain rate conditions, lacking systematic investigations into deformation mechanisms under extreme thermomechanical coupling environments.
Zhi Wang +6 more
wiley +1 more source
Functionalized Silica‐Constructed Self‐Supporting Composite Separator for Lithium Metal Batteries
ABSTRACT Lithium metal batteries (LMBs) are considered highly promising next‐generation energy storage systems owing to their exceptionally high theoretical specific capacity and ultralow electrochemical potential. Nevertheless, the practical deployment of LMBs is still severely restricted by the uncontrollable formation and propagation of lithium ...
Li Chen +6 more
wiley +1 more source
Abstract Ecological niche models (ENMs) are used to assess the abiotic preferences of species by linking their occurrences to the environmental conditions in which they live. We developed a fossil‐informed ENM framework that integrates mid‐Holocene and modern occurrences to test niche stability and reconstruct abiotic niche characteristics for four ...
Claire. M. Williams +3 more
wiley +1 more source
Predictive evolutionary genomics: principles, validation, and practice
Summary Climate change and habitat loss are driving rapid evolutionary responses in populations world‐wide, which creates an urgent need for evolutionary forecasting in conservation and agriculture. Such forecasting can be categorized into three time scales: trait‐based models that use multivariate quantitative genetic equations to project correlated ...
Daniel Ortiz‐Barrientos +5 more
wiley +1 more source
介绍了特高压交流架空线路用1 000 kV棒形悬式复合绝缘子电场分布计算及均压特性研究等情况,运用三维有限元法,比较了整体单支、1/3和2/3元件组串、1/6和5/6元件组串和一种1/6瓷质绝缘子及5/6复合绝缘子组串,结果可以看出,两复合绝缘子元件组串对电场分布没有任何改善,在结构上复合绝缘子采用整体单支比两元件组串的好;导线侧使用瓷质绝缘子,接地侧使用复合绝缘子组串,可以充分利用瓷质绝缘子良好的耐电弧性和复合绝缘子良好的憎水防污性,比采用整体单支复合绝缘子的电场分布均匀 ...
孙西昌 +4 more
doaj
近年来GIL三支柱绝缘子故障频发,暴露出GIL设备在国产化设计、制造、应用进程中仍存在改进空间,早期投运的因结构设计、制造工艺不合理而存在隐患的GIL设备亟待整改。文中对“两渡”直流输电工程发生的几起GIL三支柱绝缘子典型故障案例及解体情况进行了分析,结合GIL结构设计、生产、装配和质检工艺对该批次GIL设备的故障原因及隐患进行了总结。最后提出了通过优化三支柱绝缘子生产及检验工艺、优化固定及活动三支柱绝缘子在导杆上的装配工艺、优化固定三支柱绝缘子粒子捕捉器装配工艺 ...
王典浪 +4 more
doaj
Canine Distemper Virus Research in China and Future Directions for Conservation 中国犬瘟热病毒研究现状与保护策略展望
ABSTRACT Canine distemper is a highly contagious, severe disease caused by the canine distemper virus (CDV). With a worldwide distribution and ever‐expanding list of susceptible hosts, CDV poses a growing risk for many threatened wildlife species, both in captivity and their native habitats. As a megadiverse country, China is home to myriad endemic and
Aliana C. Norris +4 more
wiley +1 more source

