Results 31 to 40 of about 7,385 (117)

Analysis of burdock polysaccharide components by high performance anion exchange chromatography coupled with pulsed amperometric detection(牛蒡多糖组分的高效阴离子交换-脉冲安培分析)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2014
应用高效阴离子交换色谱-脉冲安培检测器联用技术,研究了牛蒡多糖组分的检测方法和条件.以牛蒡为原料,采用水提醇沉法提取牛蒡粗多糖,并对其工艺进行探讨.牛蒡粗多糖经超声波酸水解处理后进行离子色谱分析,其最佳色谱条件为:以12 mmol • L-1 NaOH溶液为淋洗液,流动相流速为1. 0 mL • min-1,Carbo PaC PA10 (250 mm×4 mm i.
ZHENGYimei(郑一美)   +4 more
doaj   +1 more source

Optimizing CuO on 3D Ordered Macroporous CeO2 for CO Oxidation in Rich Hydrogen

open access: yesRare Metals, Volume 45, Issue 2, February 2026.
ABSTRACT CO preferential oxidation (CO‐PROX) in rich H2 is considered a feasible strategy to solve CO poisoning for fuel cells, but obtaining good activity at low temperatures is still a challenge. Herein, three‐dimensional ordered macroporous (3DOM) CuO/CeO2 catalysts were fabricated by a templating approach, with the metal–support interaction (MSI ...
Xiaohua Chen   +7 more
wiley   +1 more source

血清中胶质瘤疾病相关蛋白质的筛选

open access: yesZhongguo shiyan zhenduanxue, 2008
目的方法利用液体芯片-飞行质谱技术进行血清中胶质瘤疾病相关蛋白质的筛选。结果将78例胶质瘤患者和68例正常对照者血清样本各随机分为模型建立组和模型验证组;应用液体芯片-飞行质谱技术测定模型建立组样本,进行了差异蛋白的筛选和诊断模型的建立;然后用模型验证组样本进行了差异蛋白和模型的验证;并对其中的蛋白质进行鉴定。经模型建立组胶质瘤患者与正常对照者的血清蛋白质图谱比较,得到差异蛋白17个并建立了诊断模型,建模蛋白质为1460(m/z)、1612(m/z)、1776(m/z)、1862(m/z)、1941(m/
王雅杰   +9 more
doaj  

The role of child language ability and parental mentalization in early child dysregulation

open access: yesInfant Mental Health Journal: Infancy and Early Childhood, Volume 47, Issue 1, January 2026.
Abstract Dysregulation in early childhood is associated with increased vulnerability to psychopathology and poor psychosocial outcomes. While there is evidence that both child language ability and parental mentalization are associated with dysregulation in early childhood, there is little understanding of the relationships between these variables, and ...
Sara Cibralic   +6 more
wiley   +1 more source

Sulfur‐Doped Carbon Matrix‐Coated Co1‐xS/Ni0.96S@NC Rhombic Cubes Significantly Enhanced the Storage Performance and Kinetics of Lithium/Sodium‐Ion Batteries

open access: yesRare Metals, Volume 45, Issue 1, January 2026.
ABSTRACT Metal sulfide, as a type of lithium/sodium‐ion battery material, possesses merits such as high capacity and low cost. Nevertheless, it is prone to structural changes during the cycling process, leading to volume changes and affecting electrochemical performance.
Wenjin Qin   +7 more
wiley   +1 more source

柱切换二维色谱法测定鱼肝油制剂中维生素D3含量

open access: yes浙江大学学报. 医学版
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

DNA Barcoding Reveals Cryptic Diversity and Informs Conservation Priorities in Chinese Firmiana Species (Malvaceae) Using Genome Skimming Data DNA条形码揭示中国梧桐属 (锦葵科) 隐存多样性及保护优先级:来自基因组浅层测序数据的证据

open access: yesIntegrative Conservation, Volume 4, Issue 4, Page 569-583, December 2025.
Accurate species identification is critical for conserving endangered Firmiana trees in China. However, morphological similarities among closely related Firmiana species complicate its taxonomic identification. We conducted genome skimming on 62 samples representing all 10 Chinese species and discovered nrITS as the optimal DNA barcode, achieving 100 ...
Li‐Jun Yan   +8 more
wiley   +1 more source

适于人表皮组织蛋白质组分析的双向电泳技术

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 2008
【目的】 建立适于人表皮组织的双向电泳技术,并应用质谱技术对人表皮组织蛋白质组进行初步分析?【方法】 利用组织匀浆法制备人表皮组织总蛋白?固相pH 梯度胶条进行双向电泳?PDQuest 7.4软件比较和分析电泳图谱,利用质谱技术鉴定部分蛋白斑点?【结果】 成功建立了适用于人表皮组织蛋白质组分析的双向电泳技术,获得和比较了人表皮组织双向电泳四种染色图谱?人表皮组织的蛋白质在pH5~8范围内分布均匀,分子量集中在15~100 ku之间?银染图谱获得的蛋白斑点数为586±14 ...
聂燕芳   +4 more
doaj  

Genetic Confirmations of Dwarf Lemurs Across Madagascar Highlights Complex Biogeographic Patterns 马达加斯加全境鼠狐猴的遗传确认揭示了复杂的生物地理模式

open access: yesIntegrative Conservation, Volume 4, Issue 4, Page 665-674, December 2025.
Using a diagnostic mitochondrial marker gene, we document the presence of furry‐eared dwarf lemurs, a species known from Madagascar's eastern montane rainforests, in several forest fragments across the island's central highlands. These findings raise new questions about when this species colonized these sites, how they tolerate these changing and ...
Marina B. Blanco   +27 more
wiley   +1 more source

Exploring the importance of aromatic plants' extrafloral volatiles for pollinator attraction

open access: yesNew Phytologist, Volume 248, Issue 2, Page 517-528, October 2025.
Summary Aromatic plants occur in many plant lineages and have widespread ethnobiological significance. Yet, the ecological significance and evolutionary origins of aromatic volatile emissions remain uncertain. Aromatic emissions have been implicated in defensive interactions but may also have other important functions.
Aphrodite Kantsa   +3 more
wiley   +1 more source

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