[目的] 研究浅层喀斯特裂隙土壤Cd的剖面分布规律,分析不同因素对裂隙中Cd分布的影响状况,为今后研究地下裂隙土壤中Cd的分布规律及Cd污染防治提供科学依据。[方法] 以黔西北典型地质高背景区小流域为研究对象,系统分析浅层裂隙土壤Cd的全量和形态,以及pH、有机质含量、阳离子交换量(CEC)、粒径和团聚体等5种土壤性质指标,通过方差和相关分析阐明裂隙剖面土壤Cd的分布规律及其影响因子。[结果] (1)裂隙土壤的理化因子对Cd分布影响显著;(2)裂隙土壤pH平均为6.70,Cd含量平均为2.99 mg ...
范萍萍 +6 more
doaj
[Research highlight in molecular imprinting recognition of phosphopeptide isomers]. [PDF]
Chen L, Hu H.
europepmc +1 more source
Neutral interactions among non‐native plants are common
Global distribution of studies and overall effect of co‐invasion for all metrics of non‐native plant performance combined. Summary Globalization has accelerated the establishment of non‐native plant species, increasing the prevalence of multispecies co‐invasions; yet interactions among co‐invaders remain poorly understood.
Feng He +7 more
wiley +1 more source
作为毫米波导管传输方式用的分波装置中的频带分波器、半圆形耦合型分波器是一种新的设计方案。本分波器由分布耦合的两个TE01模半圆形波导管的混合波导和半圆形截止滤波器所构成。本报告将就这种分波器的构造、工作原理、设计方法及实验结果加以论述。
doaj
[Surgical management and clinical outcomes of repair for anterior talofibular ligament injury at talar attachment]. [PDF]
Zheng K, Zhang Y, Yang H, Zhang C, Li Q.
europepmc +1 more source
Nonuniform temperature and light relationships of moss‐associated nitrogen fixation across climates
Light, moisture, and temperature response of nitrogen fixation in moss–cyanobacteria associations across five climatically contrasting ecosystems. Responses of nitrogen fixation in moss–cyanobacteria associations to light (μmol photons m−2 s−1), moss relative water content (%), and temperature (°C) across five climatically contrasting ecosystems ...
Yunyao Ma, Kathrin Rousk
wiley +1 more source
[Comparison of chiral separation performance of (2-hydroxyethyl-<i>β</i>)-cyclodextrin bonded superficially porous and fully porous particle chiral stationary phases in supercritical fluid chromatography and reversed-phase liquid chromatography]. [PDF]
Yang GY +4 more
europepmc +1 more source
Tip Quantification enables quantitative analyses over versatile selections of regions of interest. Summary Cell polarity and tip growth rely on the dynamic spatial organization of signaling and structural components. Quantitative characterization of these spatiotemporal dynamics is critical for understanding polarized cell growth, yet manual ...
Jingzhe Guo +7 more
wiley +1 more source
[Expert consensus on clinical pathway for high-conformity total knee arthroplasty through a minimally invasive surgical approach]. [PDF]
Expert Consensus Development Group On Clinical Pathways For High-Conformity Total Knee Arthroplasty Through A Minimally Invasive Surgical Approach +1 more
europepmc +1 more source
AUXIN RESPONSE FACTORs: from transcription factors to auxin effectors
Molecular evolution of AUXIN RESPONSE FACTOR (ARF) effector function. Summary Signalling pathways have originated and diversified extensively during evolution. Using AUXIN RESPONSE FACTORs (ARFs) as a model, we examine how a plant signalling system evolved through the co‐option of pre‐existing transcriptional regulators, a principle well established in
Melissa Dipp‐Álvarez +1 more
wiley +1 more source

