Results 111 to 120 of about 25,070 (217)
International Journal of Applied Linguistics, EarlyView.ABSTRACT Previous research has established the relationships between motivation, anxiety, teachers’ support, and self‐regulated learning (SRL) in English‐as‐a‐foreign‐language (EFL) learning. Most of the studies, however, have taken a variable‐centered approach in addressing the variable correlations, while learners’ characteristics and variable links ...
Yuhong Jiao, Barry Bai, Jing Li
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Zhongshan Daxue xuebao. Yixue kexue ban, 2008 【目的】 观察苍术合剂对溃疡性结肠炎大鼠肠黏膜的保护作用及其抗氧化的作用机制?【方法】 用三硝基苯磺酸复制结肠炎大鼠模型,随机分为苍术合剂低?中?高剂量组,阳性对照药物组?模型对照组,另设正常对照组,治疗14天,观察大鼠结肠黏膜损伤情况?血清与结肠组织中超氧化物歧化酶活性?丙二醛含量?【结果】 苍术合剂各剂量组大鼠结肠充血?水肿等炎性症状明显改善,溃疡面积减小,修复愈合较好;结肠组织病理学观察,苍术合剂高?中剂量组的结肠组织均表现为结肠黏膜上皮少数脱落缺损?溃疡区域明显减少?炎性细胞减少?腺体排列整齐等;
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Zhongguo shiyan zhenduanxue, 2014 目的体外探索促红细胞生成素（EPO）拮抗环孢素A（CsA）所致肾小管上皮损伤的作用机制。方法采用人近曲肾小管上皮细胞作为体外实验模型,实验分对照组、CsA对照组、EPO 15U/mL与CsA合用组、EPO 30U/mL与CsA合用组,MTT法检测细胞增殖抑制率,采用金氏公式评价EPO与CsA合用拮抗作用效果,采用ELISA方法检测细胞培养上清液中肾损伤分子-1（KIM-1）的表达量,采用流式细胞仪检测细胞生存情况。结果采用金氏公式评价结果显示,EPO在15U/mL与30U ...
宋莲莲 +6 more
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, 2015 大量工程实践表明,组合梁的破坏主要源于抗剪栓钉的疲劳破坏。在疲劳荷载下,承受拉压循环应力的栓钉裂纹萌生、扩展至最终断裂,使钢梁与混凝土的组合作用失效,所以研究栓钉中裂纹萌生及扩展规律对实际工程具有重大意义。扩展有限元(eXtended Finite Element Method,XFEM)是近年来发展起来的一种求解涉及移动非连续问题的有效方法。基于ABAQUS平台利用此方法建立了组合梁推出试验的模型,进行了静力承载力以及疲劳寿命分析,模拟了栓钉中裂纹从萌生到断裂失效的过程 ...
徐杰, 王一泓, 邢颖, 韩庆华
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International Journal of Applied Linguistics, EarlyView.ABSTRACT With the internationalisation of higher education, English medium instruction (EMI) has become increasingly common in non‐English‐speaking contexts. However, research highlights a range of challenges in EMI implementation, including insufficient collaboration between content and language teachers, limited professional development opportunities
Jingwen Zhou, Nadia Lamprecht
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神经生长因子受体（TrkA）在下颌骨骨折愈合中的表达及意义的研究
Zhongguo shiyan zhenduanxue, 2006 目的探讨神经生长因子的受体-TrkA在骨折愈合过程的表达及其对骨折愈合的影响。方法本实验选用32只白兔随机分为8组（每组4只）:对照组1、d、3 d、5 d7、d1、4 d2、1 d2、8 d。制作右下颌骨骨折模型,立即行钛夹板固定。术后实验组动物分别在1、35、、71、4、212、8 d处死。切取下颌骨脱钙后制作骨组织切片,分别行HE染色,NGFR的免疫组化染色。结果NGFR-TrkA在未骨折组仅仅弱阳性表达,而在骨折愈合过程中表达强阳性,7 d达到高峰,到21 d组时骨折组的软骨细胞强阳性 ...
于立明, 张伟, 吴亚东, 王子莹
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Attainment Pairing Effects on Cognitive Conflict in Technology‐enhanced EFL Cooperative Tasks
International Journal of Applied Linguistics, EarlyView.ABSTRACT This study examines how attainment pairing (high‐high versus high‐low versus low‐low attainment) impacts English as a Foreign Language (EFL) learner engagement during technology‐enhanced cooperative writing tasks. Seventy‐eight Chinese university learners formed 39 dyads (13 pairs per group) via Tencent Meeting.
Ying Liu, Allen Thurston
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Zhongguo shiyan zhenduanxue, 2020 目的采用体外培养宫颈腺癌Hela细胞,观察莪术联合放疗对宫颈腺癌Hela细胞增殖、凋亡的影响。方法采用CCK-8法检测不同浓度莪术油注射液对Hela细胞生长的抑制作用。设立空白对照组、单药组、6Gy照射组、10Gy照射组、药物+6Gy照射组、药物+10Gy照射组,CCK-8法检测莪术油联合放疗对Hela细胞的抑制作用,流式细胞术检测莪术油联合放疗对Hela细胞凋亡的影响。结果莪术油作用后,Hela细胞生长受到抑制,且细胞抑制率与药物浓度显著相关 ...
赵悦辰 +6 more
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, 2015 本文将进口中间品影响全要素生产率的机理纳入统一模型框架中,构建了一个进口中间品通过数量、种类和价格效应影响全要素生产率的理论模型,并利用COMTrAdE和WIOd数据库提供的中国制造业相关数据对进口中间品影响中国全要素生产率的机理进行了检验。结果表明,中国中间品进口不能对全要素生产率产生显著的数量和种类效应,价格效应对出口依存度较小的行业有显著影响,但对出口依存度较大的行业影响不显著。教育部人文社科规划项目“进口中间品贸易自由化对我国工业企业出口产品质量和价格加成率的影响”; 福建省社科规划项目 ...
张翊, 陈雯, 骆时雨
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International Journal of Applied Linguistics, EarlyView.ABSTRACT Although the use of AI technologies (e.g., chatbots and automated writing evaluations (AWE)) has gained considerable attention in language learning fields in recent years, how AI technologies have been designed and implemented in language learning education, as well as their effectiveness, is understudied.
Shen Qiao +2 more
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