Results 21 to 30 of about 995,240 (154)

Methodology to identify ecologically matching areas and its applications in conservation planning

open access: yesConservation Biology, EarlyView.
Abstract Identifying ecologically matching areas is both challenging and critical for understanding spatial patterns of biodiversity and advancing conservation planning. However, existing approaches often lack spatial flexibility, overlook shape and size constraints, or rely on limited environmental parameters, reducing their effectiveness in real ...
Pietro Milanesi   +7 more
wiley   +1 more source

Amino‐Functionalized Mesoporous SiO2 Hollow Nano‐Doughnuts for Enhanced Gas Adsorption and Specific Foodborne Pathogen Recognition in Point‐of‐Care Detection

open access: yesRare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT Developing rapid, precise gas sensors for Listeria monocytogenes (LM) biomarker detection faces challenges due to suboptimal gas‐solid interactions. Herein, we report the rational synthesis of amino‐functionalized mesoporous SiO2 hollow nano‐doughnuts (MS‐2‐NH2‐2) via modification with (3‐aminopropyl) trimethoxysilane (AAPTMS), which enables ...
Xingyu Wang   +7 more
wiley   +1 more source

Dual‐Phase Interpenetrating Reinforcement Enables an Ultrathin Sodium Metal Anode for High‐Energy‐Density Batteries

open access: yesRare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT Ultrathin sodium (Na) metal anodes (< 40 μm) with superior electrochemical performance are essential in developing high‐energy‐density sodium metal batteries (SMBs). Nonetheless, Metallic Na's poor processability hinders its practical application.
Hao Yao   +6 more
wiley   +1 more source

低丘侵蚀红壤垦种熟化过程中土壤磁性特征演变规律

open access: yesShuitu Baochi Xuebao, 2001
应用磁测方法并结合土壤理化指标 ,对相同母质发育但利用方式和熟化程度不同的浙西红壤磁性特征进行研究。结果表明 ,6种利用方式的红壤中 ,耕植年限长、熟化程度高的红壤由于土壤结构、p H值和有机质含量的改善 ,磁性特征有明显变化 ,磁性矿物由亚铁磁性矿物向不完整反铁磁性矿物方向发展 ,且超顺磁性矿物和单畴磁性矿物含量减少。此外 ,耕植年限相同的红壤磁性相近 ,裸地红壤的磁性低值反映了裸地表土强烈侵蚀状况。
韩晓非 柳云龙 等
doaj   +2 more sources

Mesoporous Hexametallic High‐Entropy Alloy Nanotubes With Multicomponent Electronic Modulation for Efficient Bifunctional Catalysis

open access: yesRare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT Platinum‐based electrocatalysts are fundamentally constrained by strong oxygen binding, which restricts the oxygen reduction reaction (ORR) kinetics, and by severe CO poisoning, which hinders the methanol oxidation reaction (MOR). To address these limitations, we synthesized PdPtRuIrRhNi high‐entropy alloy (HEA) mesoporous nanotubes that ...
Hong Pan   +6 more
wiley   +1 more source

Anecdotes or Ecological Patterns: Symbiotic Foraging Behaviors in Coyotes and Badgers 奇特模式还是生态格局: 郊狼与獾的共生觅食行为

open access: yesWildlife Letters, Volume 4, Issue 3, Page 131-138, September 2026.
Using a 3‐year, broad‐scale camera‐trap network in western Kansas, we tested whether coyotes and American badgers exhibit spatiotemporal patterns consistent with coordinated hunting. Despite high diel activity overlap, detection‐conditioned co‐detections occurred far less frequently than expected under independence, and short‐term temporal sequencing ...
Ty J. Werdel   +3 more
wiley   +1 more source

北京松山国家级自然保护区林下鸟类和兽类多样性动态监测

open access: yes野生动物学报, 2017
明确生物多样性动态和变化趋势是制定有效保护措施的基本出发点,2013年3月~2014年2月,在北京松山国家级自然保护区布设 64台红外相机,对林下鸟类和大中型兽类多样性进行连续监测,并与以往研究进行对比。本次调查累积相机日14 930 d,获得独立有效照片3 293组,有效视频3 746 s。记录到鸟类7目17科47种,兽类5目10科14种,含5种国家Ⅱ级重点保护野生动物。较以往红外相机监测新发现鸟类21种分属12科,新增6科; 新增兽类2种分属2科。不同海拔、植被类型以及功能区的相对丰富度存在一定差异,
张源笙 蒋万杰 蒋 健 王 丹 吴记贵 刘芳茗 鲍伟东
doaj  

NK细胞及其受体表达与再生障碍性贫血的相关性研究

open access: yesZhongguo shiyan zhenduanxue, 2023
目的 研究再生障碍性贫血(AA)病人外周血NK细胞及其受体表达的变化,探讨NK细胞在AA发病机制中的作用。方法 利用流式细胞术检测28例AA病人(其中SAA 9例,NSAA 19例)外周血NK细胞功能,包括NK细胞数量,活化性受体NKG2D,抑制性受体NKG2A,穿孔素,颗粒酶β的表达,T淋巴细胞亚群及与造血指标的相关性分析,另有18例健康志愿者为对照组。结果 AA病人外周血NK细胞数,NKG2D,颗粒酶表达减少,与对照组比较差异有统计学意义 ...
孔令环   +6 more
doaj  

Evaluating synthetic substitutes to reduce illegal harvesting and support species recovery

open access: yesConservation Biology, Volume 40, Issue 4, August 2026.
Abstract Providing synthetic substitutes is a widely promoted strategy to shift consumer demand away from wildlife products derived from threatened species. Yet, there is little evidence on whether product substitution prevents illegal or unsustainable harvesting and contributes to the recovery of threatened populations.
Aditya Shekhar Malgaonkar   +17 more
wiley   +1 more source

Mechanoluminescent Mixed‐Anion Borate Sr2B5O9Cl:Eu for Dynamic Anticounterfeiting

open access: yesRare Metals, Volume 45, Issue 7, July 2026.
ABSTRACT Mechanoluminescence (ML)—the emission of light in response to mechanical stimuli—offers a direct and visually intuitive route for transducing mechanical information into optical signals. Herein, we report a mixed‐anion strategy to prepare mixed‐anion borate Sr2B5O9Cl:Eu phosphors through a facile, low‐temperature, and ambient‐atmosphere solid ...
Yuhong Han   +7 more
wiley   +1 more source

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