Results 71 to 80 of about 8,473 (140)
群落组成是影响森林演替方向的主要因素之一.浙江省地处我国东部,属典型亚热带气候,全省植被类型多样,物种组成丰富.为了更好地了解浙江省自然保护区内落叶阔叶林群落结构,于2012年在浙江清凉峰自然保护区(QLF)、浙江天目山自然保护区(TMS)、浙江龙王山自然保护区(LWS)、浙江九龙山自然保护区(JLS)、浙江大盘山自然保护区(DPS)5个自然保护区内选取并建立了 12个30 m×30 m不同落叶阔叶群落样地,对样地中胸径(DBH)≥1 cm的木本个体进行了坐标定位和每木调查.结果表明 ...
WONGDongming(翁东明) +7 more
doaj +1 more source
Abstract IgA nephropathy (IgAN) is a common type of primary glomerulonephritis in children. The pathogenesis of childhood IgAN remains unclear, and there is a lack of effective non‐invasive biomarkers for this disease. Single‐cell RNA sequencing was performed in children with IgAN to delineate cellular and molecular compositions, and subcluster ...
Ling Yu +7 more
wiley +1 more source
在明确人与自然关系的生态伦理基础上,提出实现经济生态化和生态经济化是浙江建设生态省的关键,做到“三生共赢”是实现人与自然和谐相处 ...
张文和
doaj +2 more sources
ABSTRACT Background While the Updated Sydney System classifies Helicobacter pylori density together with inflammatory scores, the clinical relevance of bacterial load remains uncertain. This study aimed to assess the association between histological H. pylori density and the severity of gastric inflammatory activity.
Guochun Lou +5 more
wiley +1 more source
目的:探究茯苓酸对前脂肪细胞棕色化及脂代谢的影响。方法:采用棕色鸡尾酒法诱导3T3-L1 MBX细胞向米色脂肪细胞分化,建立棕色化体系。利用CCK-8法检测不同浓度茯苓酸对3T3-L1 MBX细胞存活率的影响;油红O染色观察茯苓酸作用后脂滴形成情况;定量逆转录聚合酶链反应检测棕色化关键基因解偶联蛋白(Ucp)1、过氧化物酶体增殖物激活受体γ辅激活子(Pgc)-1α、含PR结构域16转录因子(Prdm16),脂肪生成相关基因固醇调节元件结合蛋白(Srebp)1c、乙酰辅酶A羧化酶(Acc)、脂肪酸合酶 ...
陈 坤铃 +5 more
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This work synthesizes recent insights into the pathological roles of cyclins and cyclin‐dependent kinases (CDKs) across human cancers, highlights state‐of‐the‐art innovative approaches (especially targeted degradation and redistribution of CDK/cyclin proteins) for cancer therapy, and outlines future directions for CDK/cyclin‐related biomedical research.
Suya Zheng +9 more
wiley +1 more source
以西沪港海域养殖6个月的大黄鱼同生群幼鱼为实验对象,于自制顶流装置的集鱼区内移入体质量相近的2 500尾实验鱼后,在水平流速0.37 m/s胁迫下按持续顶流能力将其分为强、中、弱3个不同顶流等级子群(依次记为SG、MG和WG, 出现率分别为最强的5%、居中的50%和最弱的5%)。随机选取不同子群各30尾作为生物学测定对象,定量研究了三者生物学测定性状对体质量影响效果的差异。结果表明:(1) 三者在生物学表型和脏器比例性状上均具一定差异,诸性状中随顶流性能下降呈单调下降的仅为眼间距和内脏质量/体质量(P ...
邓 意俐 +5 more
doaj +1 more source
Advanced maternal age impairs uterine decidualization via downregulated RICTOR‐ATK3‐FoxO1 signaling. The RICTOR agonist MHY1485 rescues decidual defects, offering a therapy for age‐related pregnancy failure. ABSTRACT Miscarriage and abnormal embryonic development in women of advanced maternal age (AMA) are often associated with impaired decidualization.
Yifeng Lin +9 more
wiley +1 more source
Planar Super‐Oscillation Diffractive Lenses: Practical Developments and Applications
This review examines planar super‐oscillation diffractive lenses as a unified framework for super‐oscillatory lenses and supercritical lenses. It focuses on applications in super‐resolution imaging, micro/nanofabrication, and precision measurement and relates their application‐specific requirements to focal‐field control, multiobjective design ...
Yutian Cheng +6 more
wiley +1 more source
目的建立鱼肝油制剂中维生素D3含量测定的柱切换二维液相色谱方法。方法通过皂化萃取制备样品,采用双泵单阀切换双检测器的二维液相色谱法,对色谱柱、捕获装置和检测波长进行优化,对方法的线性、系统适用性、回收率、重复性和样品稳定性进行考察,并在实际样品测定中进一步验证。结果建立了柱切换二维色谱法:一维色谱以Agilent PoroShell SB-C8(50 mm×4.6 mm,2.7 μm)为色谱柱,乙腈-水为流动相梯度洗脱,流速为1.0 mL/min,检测波长为264 nm;二维色谱以Agilent ...
戚 绿叶 +4 more
doaj +1 more source

