Results 21 to 30 of about 5,841,209 (188)
Plant invasion in mountain ecosystems reduces soil micro‐food web complexity at higher elevations
Functional Ecology, EarlyView.Read the free Plain Language Summary for this article on the Journal blog. Abstract Anthropogenic activities have accelerated plant invasions in mountain ecosystems, impacting the structure and functions of native plant communities. Changes in above‐ground vegetation can drive shifts in below‐ground biota, yet the effects of plant invasions on soil ...
Runjie Jiao +8 more
wiley +1 more source
Functional Ecology, EarlyView.Read the free Plain Language Summary for this article on the Journal blog. Abstract Soil salinization and alkalization often suppress microbial functional activity, triggering negative feedback loops in microbial metabolism, degrading nutrients and agricultural productivity.
Yuqi Chen, Lingying Xu, Xu Zhao
wiley +1 more source
A systematic review of avian influenza virus transmission models: Gaps and opportunities
Methods in Ecology and Evolution, EarlyView.Abstract Highly pathogenic avian influenza virus (HPAIV) increasingly threatens wild birds, poultry, non‐human mammals and humans, yet gaps and opportunities in avian influenza virus (AIV) transmission modelling have not been comprehensively synthesized.
Shenglai Yin +7 more
wiley +1 more source
Comprehensive framework for assessing and optimizing existing research networks
Conservation Biology, EarlyView.Abstract Conservation, monitoring, and research networks, or collections of ecological research sites unified under a common mission of data collection or a research mission, are essential infrastructure for understanding large landscapes. However, most networks developed opportunistically over decades rather than through systematic design, creating ...
Alyson East +2 more
wiley +1 more source
, 2001 对巴西实验的原理、特点及其在炸药力学性能研究中的应用现状进行了介绍。设计了巴西实验装置，用巴西实验对炸药的力学性能进行了实验研究，对巴西实验进行了粘弹性近似分析。巴西实验能够比较准确、敏感地反映炸药的力学性能，具有试样制备简单、实验费用低等优点 ...
陈鹏万, 张瑜, 丁雁生, 黄风雷
core +2 more sources
Advancing conservation breeding programs for marine invertebrates
Conservation Biology, EarlyView.Abstract In the face of ecosystem change and biodiversity loss caused by climate change and other stressors, conservation breeding, or captive breeding, with the aim of reintroduction for wild population recovery, is an emerging tool for preventing species’ extinction and rehabilitating ecosystems.
Elora H. López‐Nandam +3 more
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2018 临床实习是医学高等教育的重要环节,其目的是通过进行临床实践教学,提高医学生的临床实践能力、临床思维能力、运用医学理论知识解决实际问题的能力、同时接受继续医学教育、培养良好的医患沟通能力以及进行科学研究的能力。儿科临床教学的目的是把临床实践教学和课堂教学有机结合起来,在保持教学系统性、完整性的同时,调动学生学习的主动性、积极性,把素质教育融入到儿科临床教学实践中,改变传统的传授知识的教学方法 ...
陈鹏 +4 more
doaj
Taxonomic and functional diversity of urban bees of the world
Conservation Biology, EarlyView.Abstract Bees play a pivotal role in terrestrial environments. Urbanization can affect these organisms and the ecosystem services they provide. However, knowledge of the global diversity of urban bees is limited. Thus, we summarized data on urban bee species identities and occurrences; compared distributions of all bees with those found in urban ...
João C. F. Cardoso +10 more
wiley +1 more source
Jianzhu Gangjiegou Jinzhan, 2021 铝合金在大跨空间、桥梁、电力塔架等结构中得到了良好应用。随着现代工程结构日益向大跨、复杂、重载、恶劣环境等方面发展,对铝合金的力学性能提出了新要求,特别是要求结构材料具有更高的强度。从7×××系高强铝合金的工程应用、材料力学性能、构件稳定性能和焊接性能方面阐述了我国高强铝合金的研究进展。关于7×××系高强铝合金材料力学性能的研究较为充分,而对其构件稳定性能的研究尚处于初步阶段;缺乏基于搅拌摩擦焊接连接的铝合金结构受力性能的相关研究。建议了用于构件计算的7A04-T6高强铝合金的设计指标 ...
李贝贝 +5 more
doaj