Results 21 to 30 of about 324,539 (119)

Cross‐stage single‐cell and spatial metabolome analyses reveal periderm specialization and tanshinone biosynthesis in Salvia miltiorrhiza roots

open access: yesNew Phytologist, EarlyView.
Biosynthesis and accumulation of tanshinones in the periderm of Salvia miltiorrhiza during secondary root growth. Summary Perennial herbs develop long‐lived roots that undergo repeated cycles of secondary growth, during which the periderm functions as a protective barrier and a major site of specialized metabolite accumulation.
Licheng Liu   +19 more
wiley   +1 more source

可量化的移动Ad Hoc网络时空动态特性评估方法 [PDF]

open access: yes, 2011
移动模型是Ad Hoc网络区别于其他形式网络的重要标志,对其产生的动态网络特性(简称动态特性)进行评估,是研究Ad Hoc网络的协议仿真和网络相关技术(如拓扑控制和网络性能测量等)的基础性问题.在已有研究的基础上,改进了网络的模型化描述,克服了以往模型无法很好地描述相关联的时空动态特性的缺陷,并在此基础上,提出了移动模型通用的可量化时空动态特性评估方法.通过构建节点空间位置分布,建立网络拓扑时空动态特性的分析模型,深入研究了几种移动模型的动态性.提出一种圆周曲线移动模型 ...
王备战, 管晓宏, 王伟, 王亚平
core  

The underappreciated roles of fog and dew on vegetation and biocrusts

open access: yesNew Phytologist, Volume 251, Issue 1, Page 46-63, July 2026.
Summary Fog and dew represent minor components of ecosystem water budgets in most ecosystems. However, fog and dew can play an essential role in ecosystem dynamics and are particularly important for water‐limited systems. In addition to serving as direct water inputs, fog and dew can influence microclimate and water redistribution, thereby promoting ...
Lixin Wang, Yue Li, Mengyun Sun, Na Qiao
wiley   +1 more source

Kinetic‐Controlled Growth of Iron Chalcogenide Nanosheets Featuring Besnus Transition

open access: yesRare Metals, Volume 45, Issue 6, June 2026.
ABSTRACT Two‐dimensional (2D) Fe‐based nanosheets have sparked wide attention owing to exotic magnetism, superconductivity and topological phases. However, the synthesis of 2D FemXn (X = Te/Se/S, m, n: integer), typically in a non‐stoichiometric ratio, remains challenging because of narrow thermodynamic windows.
Hongmei Zhang   +11 more
wiley   +1 more source

Synthesizing beaver coexistence messaging with the capability, opportunity, and motivation behavior model

open access: yesConservation Biology, Volume 40, Issue 3, June 2026.
Abstract In the western United States, conservation practitioners are increasingly working with private landowners to restore habitat for North American beavers (Castor canadensis) and to use nonlethal mitigation techniques when beavers damage crops and infrastructure.
Brian D. Erickson, Megan S. Jones
wiley   +1 more source

Biodiversity‐driven spatial conservation planning to delineate temporally stable regions

open access: yesConservation Biology, Volume 40, Issue 3, June 2026.
Abstract The accelerating loss of biodiversity underscores the critical need for effective conservation strategies, particularly in the face of climate change and anthropogenic pressures. We devised a conservation planning framework that adopts a temporal stacking approach to species distribution models and landscape connectivity analyses. These models
Mattia Iannella   +5 more
wiley   +1 more source

Biomimetic Metallopeptidases for Biomedical Applications: From Modular Design to Disease Treatment

open access: yesRare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT Biomimetic metallopeptidases, as an emerging class of artificial enzyme systems, have demonstrated tremendous application potential in the biomedical field in recent years. Their core design principle is to rationally control amino acid composition and three‐dimensional conformation so that programmable peptide sequences can efficiently ...
Ke Ma, Ke‐Zheng Chen, Sheng‐Lin Qiao
wiley   +1 more source

Spatially Downscaling of Future Food Demand for Policy Planning

open access: yesWorld Food Policy, Volume 12, Issue 1, May 2026.
ABSTRACT Understanding the subnational dynamics of food demand, while accounting for the evolution of the agrifood system at the global level, remains a challenge for designing food policy to ensure food security. To link global agrifood systems with subnational food policy planning, we downscale per capita food demand for 62 food commodities at the ...
Chun Song   +3 more
wiley   +1 more source

湍流的时空关联和动态耦合

open access: yes, 2017
编者按:近期,中国科学院力学研究所非线性力学国家重点实验室何国威课题组在《流体力学年鉴》(ANNUAL REVIEW OFFLUID MECHANICS)发表了题为“湍流的时空关联和动态耦合”的综述性论文。《流体力学年鉴》是国际流体力学界的顶级刊物(影响因子为12),每年大约发表二十篇左右的论文,对当今流体力学领域的重要问题和成果做出总结,分析和发展预测。该论文是继周培源先生在一九九五年的《中国湍流研究五十年》论文之后,第二篇以中国大陆科研机构和大学为第一作者单位发表在 ...
王柏懿编撰, 何国威
core  

Internal physiological drivers of leaf development in trees: Understanding the relationship between non‐structural carbohydrates and leaf phenology

open access: yesFunctional Ecology, Volume 40, Issue 5, Page 1151-1164, May 2026.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Plant phenology is crucial for understanding plant growth and climate feedback. It affects canopy structure, surface albedo, and carbon and water fluxes. While the influence of environmental factors on phenology is well‐documented, the role of plant intrinsic factors ...
Yunpeng Luo   +8 more
wiley   +1 more source

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