近年来,基于语料库的具有学科特色的学术短语列表构建备受关注。该研究对比了COCA学术语料库与自建的科技英语摘要语料库中的学术短语。目的是分析国内科技英语摘要中的学术短语与国际学术语料库在结构和功能上的差异,进而探寻国内英语...近年来,基于语料库的具有学科特色的学术短语列表构建备受关注。该研究对比了COCA学术语料库与自建的科技英语摘要语料库中的学术短语。目的是分析国内科技英语摘要中的学术短语与国际学术语料库在结构和功能上的差异,进而探寻国内英语学习者在学术短语运用方面存在的问题。研究结果表明:1) 在结构分类方面,动词类短语在国内科技英语摘要中的使用频率比COCA学术语料库的高,而功能词类短语的使用频率则呈现相反趋势;2) 在功能分类方面,两个语料库均以指示功能类短语为主。这些发现不仅有助于深入理解国内科技英语摘要的语言特点,也为未来的学术写作与教学提供了有益参考。There has been a growing interest in compiling corpus-based academic formulas lists with disciplinary characteristics in recent years. A contrastive analysis of the academic phrases, which are sourced from the academic corpus of COCA and the abstract corpus of EST papers published in China, is conducted in this paper. The distributions of academic phrases categorized by structure and function are studied to recognize the challenges faced by Chinese EFL learners. The analysis indicates that: 1) as for structural classification, verbal phrases are used more frequently in the EST abstract corpus than in the COCA academic corpus, while the frequency of function-based phrases represents the reverse tendency;2) concerning functional classification, the application of referential expressions phrases are significant in both corpora. These findings serve as a potential reference to the study on linguistic features of EST abstracts and the teaching of academic writing in future.展开更多
目的系统评价严重创伤患者发重症监护后综合征(PICS)的危险因素。方法计算机检索PubMed、Medline、Web of Science、CochraneLibrary、中国知网、万方数据知识服务平台、维普网、中国生物医学文献数据库中关于严重创伤患者发生PICS危险...目的系统评价严重创伤患者发重症监护后综合征(PICS)的危险因素。方法计算机检索PubMed、Medline、Web of Science、CochraneLibrary、中国知网、万方数据知识服务平台、维普网、中国生物医学文献数据库中关于严重创伤患者发生PICS危险因素的相关文献,检索时间限定为2010年1月至2024年4月。由2名研究者独立进行文献的筛选与数据提取,采用纽卡斯尔-渥太华量表(NOS)对纳入的队列研究和病例对照研究进行文献质量评价,横断面研究则参照美国卫生保健和质量机构(AHRQ)的标准进行文献质量评价,采用RevMan 5.4和Stata18.0软件进行meta分析。结果共纳入11篇文献,其中7篇为横断面研究,4篇为病例对照研究,文献质量均为中高等。meta分析结果显示,年龄≥60岁(OR=1.66,95%CI:1.43~1.91,P<0.001)、吸烟(OR=5.45,95%CI:1.61~18.47,P=0.006)、饮酒(OR=6.90,95%CI:2.14~22.26,P=0.001)、入住ICU时长≥7 d(OR=2.45,95%CI:1.18~5.11,P=0.020)、机械通气治疗(OR=1.96,95%CI:1.04~3.68,P=0.040)、睡眠障碍(OR=2.78,95%CI:1.35~5.73,P=0.005)、镇静药物使用(OR=2.88,95%CI:1.34~6.22,P=0.007)是严重创伤患者发生PICS的独立危险因素。敏感性和发表偏倚分析结果显示,除年龄≥60岁和入住ICU时长≥7 d因素外,其他因素均提示分析结果可靠,存在发表偏倚可能较小。结论严重创伤患者发生ICU后综合征的危险因素众多,临床实践中医护人员应重点关注其高危人群,并对这些风险因素进行及时的评估和干预,以降低重症创伤患者ICU后综合征的发生率,更好地促进患者健康转归。展开更多
文摘近年来,基于语料库的具有学科特色的学术短语列表构建备受关注。该研究对比了COCA学术语料库与自建的科技英语摘要语料库中的学术短语。目的是分析国内科技英语摘要中的学术短语与国际学术语料库在结构和功能上的差异,进而探寻国内英语学习者在学术短语运用方面存在的问题。研究结果表明:1) 在结构分类方面,动词类短语在国内科技英语摘要中的使用频率比COCA学术语料库的高,而功能词类短语的使用频率则呈现相反趋势;2) 在功能分类方面,两个语料库均以指示功能类短语为主。这些发现不仅有助于深入理解国内科技英语摘要的语言特点,也为未来的学术写作与教学提供了有益参考。There has been a growing interest in compiling corpus-based academic formulas lists with disciplinary characteristics in recent years. A contrastive analysis of the academic phrases, which are sourced from the academic corpus of COCA and the abstract corpus of EST papers published in China, is conducted in this paper. The distributions of academic phrases categorized by structure and function are studied to recognize the challenges faced by Chinese EFL learners. The analysis indicates that: 1) as for structural classification, verbal phrases are used more frequently in the EST abstract corpus than in the COCA academic corpus, while the frequency of function-based phrases represents the reverse tendency;2) concerning functional classification, the application of referential expressions phrases are significant in both corpora. These findings serve as a potential reference to the study on linguistic features of EST abstracts and the teaching of academic writing in future.
