Results 51 to 60 of about 1,061,235 (143)
International Journal of Applied Linguistics, EarlyView.ABSTRACT While existing research on Korean as a foreign language (KFL) has increasingly focused on learner motivation, KFL learners’ linguistic ownership remains underexplored. This study addresses this gap by examining how Han Chinese learners of Korean perceive and negotiate their linguistic ownership in relation to the perceived linguistic capital ...
Yunzhe Huang, Mi Yung Park
wiley +1 more source
Zhongshan Daxue xuebao. Yixue kexue ban, 2013 【目的】 分离鉴定羊水中的外切体,并测定羊水外切体中RNA的浓度,探讨从羊水外切体中提取RNA的可行性,从而进一步为胎儿肾脏疾病产前诊断和胎儿肾功能监测寻找生物指标提供研究基础?【方法】 对8例妊娠22 ~ 30周并有产前诊断指征的孕妇分别采用常规羊膜腔穿刺术收集到羊水10 mL进行检测分析,通过多步离心法及蔗糖密度梯度离心法提取羊水中的外切体,采用透射电镜?流式细胞术及激光共聚焦对其进行鉴定,trizol法对分离到的外切体进行RNA提取,紫外分光光度计测定其RNA浓度?【结果 ...
doaj
Zhejiang Daxue xuebao. Lixue ban, 2010 用豆油作为氧载体加入发酵液中形成双液相发酵体系,以改善灵芝胞外多糖的发酵状况.实验表明：常见的氧载体材料在双液相发酵过程中不为灵芝菌体所利用,仅起到促进溶氧的效果；在灵芝胞外多糖的双液相发酵体系中, KLa值明显提高,溶氧水平(DO)有显著改善,发酵液的运动黏度µ有所降低,有助于降低搅拌能耗；氧载体改善了质量传递,提高了细胞的代谢水平,使胞外多糖的产量提高了44%,发酵周期缩短了约17%.说明双液相发酵体系对灵芝胞外多糖发酵是一种新型有效的途径.
LIWei-qi(李卫旗) +4 more
doaj +1 more source
Accountability in Government Use of AI: Citizen Concerns and Preferences
Public Administration, EarlyView.ABSTRACT Government adoption of AI opens the “pandora's box” of accountability, a core aspect of public value. Despite the centrality of governmental AI accountability, citizens' concerns and preferences in holding governments accountable for AI usage remain poorly understood.
Naikang Feng, Yanto Chandra
wiley +1 more source
外泌体环状RNA诱导HK-2细胞凋亡在感染性休克AKI中的研究
Zhongguo shiyan zhenduanxue目的 探究外泌体环状RNA诱导HK-2细胞凋亡在感染性休克相关性急性肾损伤的作用机制。方法 分为感染性休克相关性急性肾损伤患者组和健康人对照组，采集血标本。检测外泌体标记蛋白，鉴定出两组外泌体，对外泌体环状RNA进行实时PCR分析。对两组的HK-2细胞进行凋亡检测。结果 10例感染性休克AKI入院患者，10例健康人对照。鉴定表面外泌体标记蛋白包括HSP70和TSG101。两组均鉴定出外泌体。与对照组相比，感染性休克AKI组circ-Ttc3 ...
李秀君, 李岩, 张春媚, 杨海玲
doaj +2 more sources
Portable extracorporeal life support system in vitro and in vivo experiment
, 2017 目的初步考察便携式体外生命支持系统的离体和在体性能。方法离体实验检测便携式体外生命支持系统的稳定性;在体实验中12只雌性巴马香猪随机分为实验组和对照组,每组6只。分别应用便携式体外生命支持系统及Maquet公司Rotaflow系统进行体外循环,4.0 L/min运转6 h,于转流前、转流中每2 h及转流后取静脉血检测游离血红蛋白含量评价装置溶血性能并检测血小板激活率。结果离体实验证实便携式体外生命支持系统稳定性优于或等于同类Maquet公司Rotaflow系统;在体实验提示4.0 L/min流量运行6 ...
王辉山 +4 more
core
TESOL Journal, Volume 17, Issue 4, December 2026.ABSTRACT Although the Philippines is gaining growing recognition as an effective site for English learning, especially among Japanese and Korean students, critical attention must be paid to the instrumentalization of Filipino instructors and the country, and the racialized discourse and practice.
Aika Ishige
wiley +1 more source
Huli yanjiu, 2008 摘要： （免费在线浏览）体外循环冠状动脉搭桥术(CABG)是长期以来心脏外科进行心肌再血管化的标准手术，但体外循环可能会带来一些相关的问题，如术后认识功能障碍、脑卒中、凝血功能障碍、全身炎性反应及由此引发的多个器官系统功能障碍等。因此，近年来非体外循环下冠状动脉搭桥术(OPCAB)引起人们的注意，以期减少与体外循环有关的术后合并症。OPCAB同CABG相比，能明显降低术后左心室功能不全的发生率，减少住院时间、输血量，降低医疗费用，降低术后心房颤动及脑卒中的发生率 ...
阅读全文：0
doaj
, 2004 介绍了使用闪耀光栅作为光反馈元件，与原始线宽大于1200GHz的半导体激光器构成的Littrow型外腔半导体激光器，极大地改善了激光器的性能。实验得到了功率恒定、模式单一稳定、线宽优于1．2MHz的激光输出，压窄线宽比为106，并针对Littrow型外腔结构提出了简洁 ...
张静娟 +3 more
core
Past, present and future of local crop evolution
PLANTS, PEOPLE, PLANET, Volume 8, Issue 6, Page 1989-2004, November 2026.Promoting agrobiodiversity is a promising strategy for mitigating the negative effects of climate change on global food security. We highlight the central role evolutionary processes play in harnessing the potential of local crops by integrating genomics, archaeology, ethnobotany and traditional ecological knowledge (TEK).
Nataly Allasi Canales +6 more
wiley +1 more source