Results 41 to 50 of about 24,512 (136)
Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT Regulating negative parameters of metacomposites is mainly limited by their unclear mechanisms, which affects their practical applications in new sensing, communication, electromagnetic (EM) protection and other fields. This work proposes a dual‐functional competitive design strategy based on the waste corncob‐derived carbon/polyaniline ...
Qiuyun Yang +4 more
wiley +1 more source
野生动物学报, 2010 凤头鸊鷉广泛分布于开阔的平原湖泊、江河和沼泽等地带,是环境变化的指示物种。凤头鸊鷉在我国分布较广,数量较多,但近年来数量也呈下降趋势,本文通过对凤头鸊鷉繁殖前期的行为观察得出了在这一时期的日行为节律以及各行为在1 d中的时间分配比例,1 d中以游水行为为主占37.81%,其他行为情况分别是理羽占22.48%、静栖占13.44%、潜水占11.16%、觅食占10.89%、求偶占3.86%、卧巢行为占0.27%,其他行为占0.08%。凤头鸊鷉雌雄个体行为发生的频次无明显差异,只是进入繁殖前期 ...
张玥 +5 more
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Ultrasound in Obstetrics &Gynecology, Volume 67, Issue 2, Page 207-219, February 2026.ABSTRACT Objective To test the non‐inferiority of extended abdominopelvic ultrasound examination compared with contrast‐enhanced computed tomography (CT) and whole‐body diffusion‐weighted magnetic resonance imaging (WB‐DWI/MRI) in discriminating preoperatively between resectable and non‐resectable disease based on the European Society for Medical ...
D. Fischerova +26 more
wiley +1 more source
Risk of pre‐eclampsia according to gestational age across three decades: population‐based study
Ultrasound in Obstetrics &Gynecology, Volume 67, Issue 2, Page 155-161, February 2026.ABSTRACT Objectives To determine the risk of pre‐eclampsia in ongoing pregnancies according to gestational age. We also studied whether the gestational‐age‐specific risks of developing pre‐eclampsia have changed over recent decades. Methods This was a population‐based study using data from the Medical Birth Registry of Norway.
C. Haavaldsen, O. Thomas, A. Eskild
wiley +1 more source
The Role of Public Finance to Address the Global Finance Gap for Drinking Water Services
World Water Policy, Volume 12, Issue 1, February 2026.ABSTRACT Meeting SDG target 6.1 for drinking water requires addressing the finance gap between the funds available from tariffs, taxes and transfers, and the life‐cycle costs of sustaining these services. While there are li‐mitations to applying repayable finance to address this gap, governments can be well suited to support both drinking water ...
Kristina Nilsson
wiley +1 more source
低剂量64层螺旋CT成像在结肠癌鉴别诊断中的价值及影像学特点分析
Zhongguo shiyan zhenduanxue, 2017 目的比较分析低剂量64层螺旋CT成像（64-MSCT）在结肠癌鉴别诊断中的价值并分析其影像学特点。方法选取46例确诊或高度可以结肠癌病人进行结肠充气64-MSCT检查,通过得出的图像来诊断结肠癌,计算检查准确率,同时46例患者应用气钡双对比造影以及手术病理结果进行对比。将扫描获得的结果通过图像重建的方法进行图像处理,得到的MPR-CTVE融合图像与肠镜结果进行对比。结果 46例中,全部诊断经病理和手术确认为结肠癌,低剂量64-MSCT结果全部诊断为结肠癌,诊断敏感度为100%（46/46 ...
计一丁, 徐东风
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, 2021 如何对不良驾驶行为进行干预，从而提升驾驶安全性，是交通心理学研究中重点关注的问题。现有干预方式中，通过嗅觉刺激进行干预具有成本低、对驾驶任务的干扰较小等优势，但目前常用的嗅觉刺激仍然存在一些问题，包括可能存在驾驶员对气味的个体偏好问题；仅关注嗅觉刺激对认知和车辆操作的影响，缺少社会互动方面的证据等。驾驶是一种社会交互性较强的活动，“雄甾二烯酮”是一种能够对人类的认知、情绪和社会行为产生影响的物质，其作用效果有解决上述问题的潜力。 本研究探索了雄甾二烯酮提升驾驶绩效和亲社会驾驶行为的可能性 ...
王宇宸
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Zhongshan Daxue xuebao. Yixue kexue ban, 2007 【目的】探讨乏氧组织显像剂99mTc-HL91显像对肺癌诊断价值及与放射治疗前后肿瘤乏氧程度的改变。【方法】选取确诊的肺癌病例41例,非肺癌病例33例为实验组和对照组。实验组于放射治疗前后1,6h行99mTc-HL91肺癌乏氧显像并测定其T/NT比值,放疗后前后4h行CT＋SPECT断层显像并测定T/NT比值;对照组行肺部1,6h99mTc-HL91肺癌乏氧显像。【结果】41例肺癌患者治疗前均可见病灶处放射性分布早期增加,血流灌注峰与邻近正常组织比较明显增加。治疗前1、6h平面显像T/NT值分别为1 ...
古模发 +7 more
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Zhongguo shiyan zhenduanxue, 2014 目的了解东莞地区人群G6PD缺乏的流行特征,为本地区提供G6PD缺乏症基因突变、基因型及表型资料,完善本地区基因突变谱,并为制订本地区G6PD缺乏症的预防计划提供有价值的参考。方法收集2010年1月至2012年12月在我院进行体检的男性外周血样本,采用G6PD/6PGD比值法进行筛查,记录其G6PD/6PGD比值法检测结果,G6PD ...
李文瑞 +7 more
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野生动物学报, 2012 从2011年12月到2012年4月,应用全事件取样法和目标动物取样法对南昌动物园2只处于育龄期的华南虎进行了丰容前后的行为观察,对丰容前后行为发生的时间分配、行为比例进行了研究比较。结果显示:丰容前主要出现踱步行为（刻板行为）,休息行为和摄食行为（摄食行为的发生受人为控制）等行为,丰容后行为谱明显丰富,行为种类增多,玩耍行为,社会行为占据整个行为谱的时间比重加大,丰容前后行为存在显著的差异。研究结构表明可以通过丰容来改变华南虎的行为节律,从而减少其刻板行为,增加了社会行为 ...
吴志勇, 李东涛, 刘道强
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