Results 31 to 40 of about 17,976 (120)

Synergistic Enhancement of Toluene Catalytic Oxidation via Pt‐Induced Oxygen Vacancies and Heterojunction Built‐In Electric Field

open access: yesRare Metals, Volume 45, Issue 6, June 2026.
ABSTRACT Improving catalytic activity for volatile organic compounds (VOCs) oxidation and enhancing water‐tolerance stability remain challenging in practical applications. Herein, a composite catalyst integrating Pt/CoOx‐NiOx mesoporous nanorods (MNRs) with a phenyltriethoxysilane (PhTES)‐modified surface was fabricated via a facile route for toluene ...
Jiaqin He   +13 more
wiley   +1 more source

Study on Multi‐Step Deformation Mechanisms and Synergistic Regulation of Strength and Ductility in Ti‐2Al‐2.5Zr Alloy Tubes for Nuclear Power Applications

open access: yesRare Metals, Volume 45, Issue 6, June 2026.
ABSTRACT To overcome the strength–ductility trade‐off in fabricated Ti‐2Al‐2.5Zr alloy tubes, we systematically investigated the microstructural evolution and mechanical behavior throughout thermomechanical processing, including hot working (forging and extrusion) and cold multi‐pass rolling.
Yanlong Xia   +7 more
wiley   +1 more source

β-胶原降解产物,N-端骨钙素,总Ⅰ型胶原氨基端延长肽在肿瘤骨转移诊断中的应用

open access: yesZhongguo shiyan zhenduanxue, 2012
目的探讨血清N-端骨钙素(N-MID Osteocalcin)、总Ⅰ型胶原氨基端延长肽(TPINP)、骨吸收标志物β-Ⅰ型胶原羧基端肽(β-C-terminal telopeptide of type I collagen,β-CTx)在骨转移癌诊断中的临床价值。方法将87例肿瘤患者分为骨转移组48例和无骨转移组(对照组)39例,采用不同分类依据将骨转移组分为A.B.C三个亚组。定量测定N-MID.β-CTx和TPINP。结果 N-MID.β-CTx和TPINP在骨转移组中的浓度均高于对照组 ...
柳扬, 刘光耀, 李忠军
doaj  

Architecting a Robust Yarn‐Like CNT Framework for Structurally Resilient ZnSe Anodes in Potassium–Ion Batteries

open access: yesRare Metals, Volume 45, Issue 6, June 2026.
ABSTRACT The development of structurally stable anodes with high capacities and long cycle lives is essential for the development of potassium–ion batteries. Conversion‐type anodes have attracted considerable attention in potassium–ion batteries (PIBs) due to their high theoretical capacities.
Jeong Ho Na   +7 more
wiley   +1 more source

晚期胰腺癌患者血清CA125,CA199水平与肝转移的关系

open access: yesZhongguo shiyan zhenduanxue, 2017
目的分析晚期胰腺癌患者血清CEA,CA199水平与肝转移的关系,探讨胰腺癌肝转移的危险因素。方法选取101例胰腺癌患者,主要根据有无肝转移分组,肝转移70例,无肝转移31例。采用化学发光免疫法对其血清标本中癌胚抗原(CEA)、糖抗原19-9(CA19-9)、糖抗原125(CA125)、糖抗原72-4(CA72-4)、细胞角蛋白21-1(CYFRA21-1)等项目进行检测。结果血清CA19-9、CA125水平的增高与胰腺癌肝转移具有相关性 ...
杨柳, 闫欢, 石燕, 戴广海
doaj  

Structural Distortion for Polyoxometalate‐Derived Metal Sulfide Induced by In Situ Intercalation With Organic Ligands Achieving Efficient Electrocatalytic Hydrogen Evolution Performance in Alkaline/Seawater Medium

open access: yesRare Metals, Volume 45, Issue 6, June 2026.
ABSTRACT The electrocatalytic water splitting technique was widely taken for hydrogen evolution, due to its cost‐effectiveness and environmental friendliness. The design of electrode material as electrocatalysts play a key role in achieving high efficiency.
Yaling Zhu   +5 more
wiley   +1 more source

血清miR-21对结直肠癌肝转移预测价值的评价

open access: yesZhongguo shiyan zhenduanxue, 2018
目的探讨血清miR-21对结直肠癌肝转移预测的诊断价值,以期为临床的结直肠癌肝转移的预测提供一种潜在的辅助诊断方法。方法检测146例晚期结直肠癌无肝转移患者和124例晚期结直肠癌伴肝转移患者血清中CEA的含量和miR-21的相对表达值,评价其单独检测和联合检测对于结直肠癌肝转移的预测的诊断价值。结果与结直肠癌无肝转移组相比,结直肠癌伴随肝转移组的CEA和miR-21均显著升高 ...
肖霞, 马慧, 王欣
doaj  

Prospective comparison of diagnostic accuracy of ultrasound, PET/CT and DW‐MRI for preoperative assessment of pelvic lymph nodes in cervical cancer patients: results of the CANNES trial

open access: yesUltrasound in Obstetrics &Gynecology, Volume 67, Issue 6, Page 836-851, June 2026.
ABSTRACT Objective To determine whether ultrasound is non‐inferior to positron‐emission tomography/computed tomography (PET/CT) and diffusion‐weighted magnetic resonance imaging (DW‐MRI) in terms of overall diagnostic accuracy for the preoperative assessment of pelvic lymph‐node status in cervical cancer.
F. Frühauf   +14 more
wiley   +1 more source

Conservation Funding at the Local Level 地方层面的保护资金

open access: yesWildlife Letters, Volume 4, Issue 2, Page 63-65, June 2026.
Direct conservation fund transfer to local communities ensures the involvement of these communities in decision‐making and fund utilisation, which will ultimately lead to effective biodiversity conservation. A Cakchiquel family in the hamlet of Patzutzun, Guatemala, 1993. Credits: John Issac. Source: UNEP‐WCMC Internal Resources.
Jithu K Jose
wiley   +1 more source

From Molecular Motion to Macroscopic Function: Tailoring Tetraarylethylene Supramolecular Architectures for Aggregation‐Induced Emission and Wave Absorption

open access: yesRare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT Integrating light emission and electromagnetic wave (EMW) absorption into a single material opens up possibilities for multienvironmental applications. Herein, we propose a novel “molecular engineering‐pyrolysis conversion” strategy to construct a bifunctional system with tunable photoluminescence and efficient EMW absorption performance.
Renjie Wang   +7 more
wiley   +1 more source

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