Results 31 to 40 of about 117,574 (259)
Zhongshan Daxue xuebao. Yixue kexue ban, 2001 【目的】观察体外循环(心肺转流术)术后血清S-100 蛋白浓度变化, 判断体外循环对脑损伤的影响。【方法】17 例接受体外循环心脏直视手术患者, 平均体外循环时间75.1 min, 主动脉阻断时间46.8 min 。术前、术后30 min、6 h、24 h 取颈 内静脉血标本, 离心后取血清检测S-100 蛋白浓度。【结果】血清S-100 蛋白浓度从术前平均0.44 μg/ L 上升至术后30 min 的 2.69 μg/ L, 随后下降, 至术后24 h 基本恢复术前水平;2 ...
熊 迈 +5 more
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血小板受容体(GPIIb/IIIa)拮抗剤(インテグリリン)による人工心肺後出血時間延長阻止効果 [PDF]
, 1999 Thesis (Ph. D. in Medical Sciences)--University of Tsukuba, (A), no. 2183, 1999.3.25Joint authors: Priscilla Hillyer ... et al.Off print. Originally published in: Annals of Thoracic Surgery, v. 66, no. 2, pp.
Suzuki Yasuyuki, 鈴木 保之
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Exploring gaps, biases, and research priorities in the evidence for reptile conservation actions
Conservation Biology, EarlyView.Abstract With over 21% of reptile species threatened with extinction, there is an urgent need to ensure conservation actions to protect and restore populations are informed by relevant, reliable evidence. We examined the geographic and taxonomic distribution of 707 studies that tested the effects of actions to conserve reptiles synthesized in ...
Oliver Speight +9 more
wiley +1 more source
BT Company Marketing Strategy Research [PDF]
, 2015 改革开放以来，我国社会经济得到了快速发展，医疗水平也得到了提高，我国人民随之对健康意识也与日俱增。作为开展医疗服务的第一步，体外诊断（IVD）已越来越受到国人的重视，需求也越来越旺盛。除了国内各大公立医疗机构中的检验科，实验室诊断中心和体检中心外，各类私立的体检中心也开始攒露头角，一些高端体检套餐也跃跃欲试。这些体检项目小到几百元每人次，高到几万甚至几十万不等，说明了这块蛋糕之市场潜力。作为向这些需求提供解决方案，从事医疗体外诊断产品生产和经营的各类生物科技公司也如雨后春笋般地成立并发展起来 ...
吴朝晖
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Community‐informed and codesigned research to understand the impacts of railways on wildlife
Conservation Biology, EarlyView.Abstract Trains cause mortalities of several animal species, but the ecological impacts of railways are understudied. Most research on wildlife–train collisions has focused on large mammals, but understanding railway‐specific risks for underrepresented taxa, especially vulnerable species, is important for developing effective mitigation strategies ...
Kyle D. Vincent +5 more
wiley +1 more source
Preparation and Evaluation of HCPT-loaded, Targeted Nanorods Induced by pH Switch [PDF]
, 2016 目前，在大部分给药纳米粒子制备方法中，疏水基团是必需的，因此这些制备方法都非常依赖于有机溶剂。而这些有机溶剂通过减压蒸馏或者冻干等传统方法是无法完全除去的，即使是透析也无法完全去除包裹在纳米粒子之内的残留溶剂，这样在纳米粒子内就会不可避免的存在残留有机溶剂。残留溶剂不仅对人体的健康有害，而且会加速药物制剂的变质失效。因此，如何减少或去除药物制剂中的残留溶剂一直是人们关注的问题。 羟基喜树碱(HCPT)和甲氨喋呤(MTX)都是临床常用的抗肿瘤药物，二者作用机制不同 ...
武士超
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International Journal of Applied Linguistics, EarlyView.ABSTRACT Although psychological factors such as emotion and engagement have gained increasing attention for their role in language learning success, a substantial gap remains in understanding the sources of boredom and its impact on learners’ engagement, whether behavioural, affective or cognitive, in languages other than English (LOTE).
Xian Zhao, Danping Wang
wiley +1 more source
Zhongshan Daxue xuebao. Yixue kexue ban, 2006 【目的】观察皮肤干细胞在结膜去细胞基质上的生长和分化情况，探讨利用皮肤干细胞及结膜去细胞基质构建人工结膜的可能性。【方法】将体外分离培养的1～2代人皮肤干细胞接种于人结膜去细胞基质上，在体外观察细胞的分化情况。标本分别行HE染色、人上皮细胞角蛋白CKl9单克隆抗体、结膜上皮细胞特异性标记蛋白CK8抗体、CK13抗体、MUC5A／C抗体免疫组化鉴定。【结果】皮肤干细胞在结膜去细胞基质等模拟的体外微环境下可形成类似结膜上皮细胞的复层增生，并有类结膜上皮细胞特异性标记蛋白表达，呈CK8抗体、CK13抗体 ...
孟繁剑, 陈家祺
doaj
Jianzhu Gangjiegou Jinzhan, 2020 西安奥体中心体育馆是一个特大型综合体育馆,看台以下的主体结构采用了钢筋混凝土框架-剪力墙结构,屋盖采用肋环形双层钢网架。钢屋盖由位于看台外侧的48根混凝土直柱和位于环廊外侧的16组三角形钢斜柱支承。混凝土柱均匀布置在直径为136.6 m的圆上,柱顶设混凝土环梁。外圈三角形斜柱柱顶位于直径为204.6 m的圆上。内外圈之间的跨度为34 m。建筑外立面采用飞檐造型,飞檐处屋面结构采用三层网架,在网架中部放置设备风机。介绍了结构选型和设计中重点关注的几个问题。
隋庆海, 张亚伟
doaj
International Journal of Applied Linguistics, EarlyView.ABSTRACT E‐books, powered by multimedia and interactive features, are widely used to support young children's language and literacy development. This study examines the relations of e‐book narration and bilingual parent–child talk to children's learning during shared reading. Data from 121 English learners in China and their parents were analyzed using
Dandan Yang +3 more
wiley +1 more source