Results 81 to 90 of about 38,620 (164)
Zhongshan Daxue xuebao. Yixue kexue ban, 2001 【目的】研究乙型肝炎病毒宫内传播的危险因素。【方法】对87 例乙肝表面抗原阳性孕妇采集脐血行乙肝标志 物、PCR-HBV-DNA 检测, 孕妇产后1 ～ 4 d 内取静脉血进行乙肝标记物检测。【结果】脐血PCR-HBV-DNA 阳性1 例占1.2% (1/ 86)。母血HBsAb 、HBeAg 、HBeAb 、HBcAb 的宫内感染的危险度(OR)分别为0.697(0.586 ～ 0.786)、50.792(13.082 ～ 197.204)、0.103(0.032 ～ 0.338)、2.261 ...
詹前胜, 谭丽君
doaj
Efficient Spin‐Orbit Torques Enabled by Vanadium‐Induced Orbital Currents for Neuromorphic Computing
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Spin‐orbit torque (SOT) provides an efficient electrical pathway for encoding spin states and underpins emerging, ultrafast, and nonvolatile spintronic memories and logic devices. Reducing the switching current density and power consumption remains a central challenge for practical applications.
Zhonghai Yu +17 more
wiley +1 more source
野生动物学报, 1988 有关成龄和幼龄麝鼠性别鉴定的报道屡见不鲜（华树芳,1985,刘桂仁,1984;曲增文,1987,李晓坤,1987）,其方法大同小异,我们亦采用其中的“看”和“触摸”法对成龄和幼龄麝鼠进行性别鉴定。但就仔鼠的性别鉴定至今尚未见报道。如能对仔鼠进行性别鉴定,对科研及生产会有重要意义。笔者通过1986 ...
李雁冰
doaj
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Bio‐inspired artificial vision systems have made significant progress, but most focus on photo‐receptors, neglecting the hardware implementation of the efficient downstream neural circuits for complex computations like motion detection. To overcome this bottleneck, we demonstrate a neuromorphic vision system that mimics Drosophila's motion ...
Xianyu Hu +4 more
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2015 目的回顾性分析非骨化性纤维瘤的X线平片及CT鉴别诊断,并对其价值进行研究和探讨。方法现选择我院2014年5月至2015年2月到我院进行就诊的50例非骨化性纤维瘤的患者作为研究对象,对50例非骨化性纤维瘤患者的资料进行回顾性分析。对于50患者采用随机分类的方式,分别为对照组和干预组,每组患者个25人。同时,对比对照组患者采用X线平片的鉴别方式,干预组的25名非骨化性纤维瘤患者的鉴别和诊断均采用X线平片及CT的方式进行。结果经过对比组和干预组患者的X线平片及CT检验结果对比、分析后发现 ...
贺煜
doaj
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Methanol‐assisted hydrogen generation reduces energy consumption while maintaining high hydrogen productivity. However, constructing bifunctional catalysts with high hydrogen evolution reaction (HER) activity, CO tolerance, and long‐term stability remains challenging.
Xiaoyu Zheng +5 more
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2000 目的 探讨血清糖链抗原２４２（ＣＡ２４２）、神经元特异性烯酸化酶（ＮＳＥ）及癌胚抗原（ＣＥＡ）等 ３项指标联合检测 对肺癌的诊断价值。方法采用酶联免疫法。结果肺癌组（ｎ＝８７）３项指标均明显高于结核组（ｎ＝３０）（Ｐ＜０．０１）。以健康对 照组（ｘ＋２ｓ）值为肺癌诊断的临界值（ＣＡ２４２为 ２０Ｕ／ｍｌ，ＮＳＥ为 ２０ｕ ｇ／１，ＣＥＡ为 ５ｎｇ／ｍｌ），则 ＣＡ２４２对肺腺癌（ＡＣ），鳞癌 （Ｓｑ）及小细胞肺癌（ＳＣＬＣ）的敏感性分别为 ６５．６％、４２．８％及 ３３．３％，特异性均为 ９３．８ ...
陈书恩 +4 more
doaj
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Biodegradable Zn‐based alloys are promising candidates for temporary implants, yet excessive Zn2+ release during degradation may induce cytotoxicity and adverse tissue responses. In this study, Zn‐xBa alloys (x = 0.1 wt%, 0.5 wt%, 1.0 wt% and 3.0 wt%) were developed to achieve controlled corrosion behaviors with improved biocompatibility.
Liu‐Dang Fang +9 more
wiley +1 more source
间皮素、D2-40和Glypican3在卵巢肿瘤中的鉴别诊断意义
Zhongguo shiyan zhenduanxue, 2013 卵巢癌是第三大妇科恶性肿瘤,卵巢透明细胞癌临床较少见,约占卵巢上皮性恶性肿瘤的5%-10%,但在妇科病理鉴别诊断中却占有相当比例。与卵巢透明细胞癌相关的鉴别诊断包括原始生殖细胞肿瘤（特别是卵黄囊瘤和无性细胞瘤）及卵巢浆液性囊腺癌,卵巢癌的分类不同与预后及临床处理大不相同,需要更加客观的指标用来鉴别卵巢癌。本文的目的旨在mesothelin、D2-40、Glypican3在卵巢癌诊断和鉴别诊断中的作用加以探讨。
印永祥, 赵华, 龚华
doaj
Functional Ecology, Volume 40, Issue 7, Page 2128-2142, July 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract Soil organic nitrogen (SON) transformation is critical for global nutrient cycling and ecosystem productivity, yet how its responsiveness to climate change differs across diverse land use types remains poorly resolved.
Xinyi Yang +10 more
wiley +1 more source