Results 31 to 40 of about 1,683,242 (173)
Zhongguo shiyan zhenduanxue, 2015 目的调查疾病易感性相关的髓过氧化酶（MPO）、人类8-羟基鸟嘌呤糖苷酶（hOGG1）、锰超氧化物歧化酶（MnSOD）基因多态性在韩国人群中的分布状况。方法采用聚合酶链式反应-限制性片段长度多态性（PCR-RFLP）技术分别分析300名韩国健康男女大学生的MPO基因启动子区-463bp位点、hOGG1基因第7外显子第1245位碱基C/G、MnSOD基因1183位点T/C的单核苷酸多态性—M-4,计算基因型和基因频率。结果 MPO基因型频率为G/G型80.3%、G/A型19.0%、A/A型0.7 ...
卢焕俊, 洪润哲, 许青松
doaj
International Journal of Applied Linguistics, EarlyView.ABSTRACT Many existing rubrics for L2 argumentative writing prioritize form‐based linguistic accuracy and complexity while insufficiently addressing substantive argumentative rigor and effectiveness. This limitation is further complicated by cross‐cultural variation in rhetorical conventions and educational practices, which challenge the direct ...
Zihan Xu, Peiyun Liu
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2011 目的分析大肠埃希菌、肺炎克雷伯菌临床分离株中超广谱β内酰胺酶（ESBL）的基因型分布情况。方法用表型确证试验确定临床标本中产ESBL的大肠埃希菌和肺炎克雷伯菌分别用TEM、SHV和CTX-M通用引物进行聚合酶链反应（PCR）扩增,鉴定其基因型。结果 66%的菌株为TEM基因型,14%的菌株为SHV基因型,10%的菌株为CTX-M型。结论大肠埃希菌、肺炎克雷伯菌临床分离株中超广谱β内酰胺酶（ESBL）的基因型分布以TEM基因型为主,部分菌株为SHV、CTX-M型。同一菌株内可以产生2种不同基因型的超广谱β-
黄晶, 许建成, 安倍莹, 白岩
doaj
, 2007 目的通过对中国华东地区分离出的2株基因3型戊型肝炎病毒株进行同源性分析,探讨其分子起源和传播问题。方法收集华东某地区13个养猪场的133份猪粪便标本,利用巢式RT-PCR技术扩增戊肝病毒基因组的开放读码区2(ORF2)和RNA依赖的RNA聚合酶区(RdRp,ORF1),并进行基因同源性分析。结果戊肝病毒RNA检出率为43.61%(58/133)。其中,在同一个养猪场检出的2份阳性标本与23条戊肝病毒基因3型全长序列在ORF2和ORF1区的同源性分别为77.10%~92.64%和77.49%~91.14%,
陆一涵 +5 more
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Exploring English Language Learners’ Vocabulary Knowledge and Usage When Speaking
International Journal of Applied Linguistics, EarlyView.ABSTRACT Vocabulary forms a fundamental component of speaking ability, as it enables speakers to convey meaning accurately, fluently, and effectively. Although the relationship between vocabulary and speaking has been investigated to some extent, gaps remain in understanding the link between learners’ vocabulary knowledge and their speaking proficiency,
Junyan Guo, Martin East
wiley +1 more source
HHEX基因多态性与中国北方汉族人群精神分裂症及合并2型糖尿病发病的遗传学研究
Zhongguo shiyan zhenduanxue, 2016 目的探讨2型糖尿病易感基因HHEX与中国汉族人群2型糖尿病、精神分裂症以及精神分裂症合并2型糖尿病发病的关系。方法采用群体遗传学研究策略,以中国北方汉族人群331例精神分裂症患者、166例精神分裂症合并2型糖尿病患者、229例单纯2型糖尿病患者和389例健康对照个体为研究对象,采用TaqMan探针方法检测HHEX基因rs1111875位点基因型。结果拟合优度χ2检验分析显示rs1111875基因型频数分布在上述4个群体中均符合Hardy-Weinberg平衡定律（P>0.05 ...
赵晓霞 +7 more
doaj
International Journal of Applied Linguistics, EarlyView.ABSTRACT Grounded in social cognitive theory, this study investigated how high‐evidence factors jointly contribute to Chinese‐as‐a‐foreign‐language (CFL) speaking self‐efficacy. Data from 236 CFL learners in Beijing revealed a multifaceted pattern of associations.
Peijian Paul Sun +3 more
wiley +1 more source
Governing for Digital Resilience: Rethinking Inclusion for WSIS+20 and Beyond
Policy &Internet, Volume 18, Issue 4, December 2026.ABSTRACT At the WSIS+20 juncture, this article asks what conditions enable individuals to participate meaningfully in digital life, and how governance arrangements should be assessed accordingly. Multistakeholder governance has distributed authority across actors, but not necessarily the capacity to shape or respond to digital conditions. We argue that
Audrey Yue, Jun Yu, Renae Sze Ming Loh
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Zhongguo shiyan zhenduanxue, 2007 目的评价基因芯片技术在HBV基因型及HBVP基因YMDD变异检测中的应用价值,并对不同基因型病例的临床情况进行分析。方法抽提HBV DNA,用PCR方法扩增S基因及P基因部分区域,扩增产物与基因芯片上的寡核苷酸探针进行杂交,杂交结果通过芯片影像读取仪扫描到计算机上,经软件分析可得到HBV基因型、HBVYMDD野生型及YVDD、YIDD变异型结果;部分标本通过HBV preS/S基因序列测序证实。结果38份高病毒滴度标本（HBV DNA定量>1.0×105拷贝/毫升）中22例为B基因型（58 ...
陈伟烈 +5 more
doaj
Risk, Hazards &Crisis in Public Policy, Volume 17, Issue 4, December 2026.ABSTRACT Public communication campaigns on environmental issues rely on economic and ecological arguments, assuming that the recognition of messages is sufficient to produce adjustments in practices. Drought constitutes a specific case of this problem, as a creeping crisis: a slow‐onset hazard whose effects remain weakly visible in everyday life.
Sébastien Rouquette, Inès Bellahcene
wiley +1 more source