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傣雅语中汉语借词长短复合元音的匹配与感知模式

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语言学论丛 2024年第2期 14-27页

作者：陈晓蓓陈保亚芝加哥大学语言学系美国IL60637芝加哥北京大学中国语言学研究中心/北京大学中文系北京100871

内部音变会相应地引发语言接触中匹配规则的改变。漠沙傣雅语中复合元音/a:i/-/ai:/对立的感知凸显线索由时长比例转向共振峰,/a:u/-/au:/的对立趋于消失。在借人汉语词汇时,傣语母语者用/a:i/匹配汉语的/ai/;而/au/韵母的匹配存在分歧... 详细信息

内部音变会相应地引发语言接触中匹配规则的改变。漠沙傣雅语中复合元音/a:i/-/ai:/对立的感知凸显线索由时长比例转向共振峰,/a:u/-/au:/的对立趋于消失。在借人汉语词汇时,傣语母语者用/a:i/匹配汉语的/ai/;而/au/韵母的匹配存在分歧和变异,中老年人主要用/au:/匹配,有一定的声母条件,但年轻人越来越多地匹配为/a:u/,感知实验结果也佐证了这一趋势。随着双语/多语个体汉语习得程度的提升,借词的语音适应模式由基于音值相似的多对一匹配,逐渐趋近与目标语音类的一一对应。不同接触阶段影响匹配策略的主要因素也存在差异,接触初期借词的匹配基本忠实于感知,而后结构因素的作用越来越明显。

关键词：漠沙傣雅语元音长短对立借词音系学语言接触

邻二碘芳烃和氢化钠产生芳炔用于硫醇的邻碘芳基化反应

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有机化学 2024年第7期44卷 2363-2370页

作者：刘典范王健智王梦晴陈晓蓓胡延维张士磊苏州大学药学院江苏省重大神经精神疾病研究重点实验室江苏省精准诊疗药物创制工程研究中心

该方法使用廉价易得的试剂邻二碘芳烃和氢化钠生成苯炔,然后与硫醇发生反应,简单高效地合成邻碘芳基硫醚.值得注意的是,在反应中没有观察到像过渡金属催化那样得到的二硫醚副产物.该方法操作简单,条件温和,底物范围广泛,很多情况下都给... 详细信息

该方法使用廉价易得的试剂邻二碘芳烃和氢化钠生成苯炔,然后与硫醇发生反应,简单高效地合成邻碘芳基硫醚.值得注意的是,在反应中没有观察到像过渡金属催化那样得到的二硫醚副产物.该方法操作简单,条件温和,底物范围广泛,很多情况下都给出较高收率的产物.

关键词：芳炔硫醇邻二碘芳烃氢化钠邻碘芳基硫醚

How much control causes tunneling? Evidence from China

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China Journal of Accounting Research 2017年第3期10卷 231-245页

作者： Wenting chen Shanmin Li Crystal xiaobei chen School of Accounting Guangdong University of Foreign Studies Sun Yat-sen Business School Sun Yat-sen University HIT Shenzhen Graduate School

We study the dynamic causal effects of the shareholding ratio of controlling shareholder on tunneling behavior in *** use control-right-transfers as the event to conduct the *** obtain 394 control-right-transfer samples in China corporate control market from 2001 to *** use related party transactions amount to capture control shareholders’tunneling activities,and make the following ***,tunneling behavior is significantly affected by the shareholding ratio of controlling ***,the relationship between tunneling and shareholding ratio of controlling shareholder takes an N shape(incline-decline-incline).There are at least two turning points in the ***,firms with shareholding ratios of controlling shareholder that range from 34.46%to 39.01%(8.99–18.04%)exhibit the most(least)severe *** size is significantly positively related to tunneling *** addition,the shareholding ratios of the board and the tunneling activities are significantly negatively *** findings imply the shareholding ratio decision of controlling shareholder in control transfers lead to agency problems manifested in China in a particular form of tunneling.

关键词： Tunneling Shareholding ratios Corporate control transfers Related party transactions

滑膜成纤维细胞中盐酸氨基葡萄糖含量的高效液相色谱法测定

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国际检验医学杂志 2024年第S1期45卷 1-3页

作者：张燕宋武琦付英梅陈小贝哈尔滨医科大学公共卫生学院黑龙江哈尔滨150081 哈尔滨医科大学基础医学院黑龙江哈尔滨150081

目的建立一种快速、准确测定滑膜成纤维细胞中盐酸氨基葡萄糖含量的高效液相色谱法。方法采用乙腈萃取-超声-离心的方法提取滑膜成纤维细胞中盐酸氨基葡萄糖;SB-C18色谱柱分离,乙腈(10 mmol/L)∶戊烷磺酸钠(10∶90)做流动相,柱温常温,流... 详细信息

目的建立一种快速、准确测定滑膜成纤维细胞中盐酸氨基葡萄糖含量的高效液相色谱法。方法采用乙腈萃取-超声-离心的方法提取滑膜成纤维细胞中盐酸氨基葡萄糖;SB-C18色谱柱分离,乙腈(10 mmol/L)∶戊烷磺酸钠(10∶90)做流动相,柱温常温,流速0.8 mL/min,检测波长192 nm。结果该方法在0.5~2.5 mg/mL浓度范围内具有良好的线性关系(r>0.999);滑膜成纤维细胞中盐酸氨基葡萄糖检出限为0.11 mg/mL;定量限为0.23 mg/mL;回收率为88.7%~95.4%。结论该方法简便、快速、灵敏,是一种检测滑膜成纤维细胞中盐酸氨基葡萄糖含量的优良方法。

关键词：盐酸氨基葡萄糖滑膜成纤维细胞高效液相色谱法

髂内动脉球囊预置阻断术在植入型凶险性前置胎盘中的临床研究

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中外医学研究 2024年第22期22卷 9-12页

作者：黄幸红陈晓蓓黄丽秋朱瑞珍王书长阳江市人民医院广东阳江529500

目的:探讨髂内动脉球囊预置阻断术在植入型凶险性前置胎盘中的临床价值。方法:选取2021年7月—2024年1月阳江市人民医院收治的60例植入型凶险性前置胎盘患者。根据随机数表法将其分为对照组与观察组,各30例。两组均行剖宫产,对照组应用... 详细信息

目的:探讨髂内动脉球囊预置阻断术在植入型凶险性前置胎盘中的临床价值。方法:选取2021年7月—2024年1月阳江市人民医院收治的60例植入型凶险性前置胎盘患者。根据随机数表法将其分为对照组与观察组,各30例。两组均行剖宫产,对照组应用常规止血措施,观察组应用双侧髂内动脉球囊预置术。比较两组围手术期指标、新生儿情况、子宫切除率、并发症。结果:观察组术中出血量少于对照组,手术时间与住院时间均短于对照组,差异有统计学意义(P0.05)。观察组子宫切除率、并发症发生率均低于对照组,差异有统计学意义(P<0.05)。结论:双侧髂内动脉球囊预置术应用于植入型凶险性前置胎盘患者中效果显著,能够减少产妇术中出血量,降低大出血风险,缩短手术时间和住院时间,降低患者子宫切除率与术后并发症发生率。

关键词：双侧髂内动脉球囊预置术植入型凶险性前置胎盘剖宫产新生儿并发症

Clinical study using mesenchymal stem cells for the treatment of patients with severe COVID-19

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Frontiers of Medicine 2020年第5期14卷 664-673页

作者： Lingling Tang Yingan Jiang Mengfei Zhu Lijun chen Xiaoyang Zhou chenliang Zhou Peng Ye xiaobei chen Baohong Wang Zhenyu Xu Qiang Zhang Xiaowei Xu Hainv Gao Xiaojun Wu Dong Li Wanli Jiang Jingjing Qu Charlie Xiang Lanjuan Li The Shulan(Hangzhou)Hospital Affiliated to Shulan International Medical CollegeZhejiang Shuren UniversityHangzhou 310022China Department of Infectious Diseases Renmin Hospital of Wuhan UniversityWuhan 430060China State Key Laboratory for Diagnosis and Treatment of Infectious Diseases National Clinical Research Center for Infectious DiseasesCollaborative Innovation Center for Diagnosis and Treatment of Infectious DiseasesThe First Affiliated HospitalCollege of MedicineZhejiang UniversityHangzhou 310003China Innovative Precision Medicine(IPM)Group Hangzhou 311215China

The coronavirus disease 2019(COVID-19)caused by SARS-CoV-2 was identified in December *** symptoms include fever,cough,dyspnea,early symptom of sputum,and acute respiratory distress syndrome(ARDS).Mesenchymal stem cell(MSC)therapy is the immediate treatment used for patients with severe cases of ***,we describe two confirmed cases of COVID-19 in Wuhan to explore the role of MSC in the treatment of *** transplantation increases the immune indicators(including CD4 and lymphocytes)and decreases the inflammation indicators(interleukin-6 and C-reactive protein).High-flow nasal cannula can be used as an initial support strategy for patients with *** MSC transplantation,the fracrion of inspired O2(Fi02)of the two patients gradually decreased while the oxygen saturation(Sa02)and partial pressure of oxygen(P02)***,the patients9 chest computed tomography showed that bilateral lung exudate lesions were adsorbed after MSC *** indicated that MSC transplantation provides clinical data on the treatment of COVID-19 and may serve as an alternative method for treating COVID-19,particularly in patients with ARDS.

关键词： coronavirus disease 2019(COVID-19) mesenchymal stem cell acute respiratory distress syndrome stem cell therapeutics

The Effect of Different Hyperbaric Oxygen Treatment Time Windows on Neurological Function and Prognosis in Acute Cerebral Infarction

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Expert Review of Chinese Medical

Expert Review of Chinese Medical 2024年第2期2卷 1-6页

作者： Tianqi chen xiaobei Liu Hubei University of Arts and Sciences Affiliated Hospital Xiangyang Central Hospital The First Clinical Medical College of Mudanjiang Medical College

Objective:To observe the effects of different hyperbaric oxygen treatment time windows on the prognosis and neurological function of acute cerebral ***:160 patients with acute cerebral infarction admitted to Xiangyang Central Hospital in Hubei Province were randomly divided into four groups,each with 40 cases,using a random number table *** to the 2017 guidelines for the treatment of cerebral infarction,the control group received routine treatment for acute cerebral infarction;On the basis of the control group,patients in Group A received hyperbaric oxygen therapy within 48 hours of onset;Group B patients receive hyperbaric oxygen therapy within 3-6 days of onset;Group C patients receive hyperbaric oxygen therapy within 7-12 days of *** the efficacy,recurrence,and neurological function recovery of four groups of patients after ***:There was no statistically significant difference in the National Institutes of Health Stroke Scale(NIHSS)and Barthel Index(BI)scores among the four groups before treatment(P>0.05).There were statistically significant differences in NIHSS and BI scores between 14 and 30 days after treatment and before treatment(F=16.352,27.261,11.899,28.326,P0.05).After 30 days of treatment,the total effective rate of Group A was higher than that of the control group and Group C,and the difference was statistically significant(X2=6.135,P<0.05).The one-year recurrence rate of Group A and Group B is lower than that of Group C and the control group,and the difference is statistically significant(X2=8.331,P<0.05).There was no statistically sign

关键词： acute cerebral infarction neurological function hyperbaric oxygen recrudescence

媒体压力、融资约束与工业企业碳排放——绿色发明专利的调节作用

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科技进步与对策 2021年第12期38卷 69-78页

作者：陈小蓓陈雪婷哈尔滨工业大学(深圳)经济管理学院广东深圳518055

以2011-2017年沪深上市工业企业为样本,利用固定效应模型,分析媒体压力与融资约束对企业碳排放的影响,探讨绿色发明专利的调节作用,结果发现,媒体压力显著抑制企业碳排放,且缓解融资约束可以促进企业碳减排。回归结果还表明,绿色发明专... 详细信息

以2011-2017年沪深上市工业企业为样本,利用固定效应模型,分析媒体压力与融资约束对企业碳排放的影响,探讨绿色发明专利的调节作用,结果发现,媒体压力显著抑制企业碳排放,且缓解融资约束可以促进企业碳减排。回归结果还表明,绿色发明专利会削弱媒体压力的碳减排效应,增强融资约束对碳减排的抑制作用,而媒体压力与融资约束对企业碳排放的影响并不存在相互促进或抑制作用。最后,对结论进行内生性与稳健性检验,并提出相应政策建议。

关键词：媒体压力融资约束绿色发明专利工业企业企业碳排放

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Profile of *** chen

Science China(Life Sciences) 2024年第10期67卷 2062-2063页

作者： chen, Songlin Yellow Sea Fisheries Res Inst Qingdao Peoples R China

For decades,*** has been engaged in fish germplasm preservation,sex control and research focusing on molecular breeding for disease *** discovered the first sex-specific molecular marker of fish(chen et al.,2007),deciphered the first fish genome(Chinese tongue sole)in China,revealed the sex determination mechanism in fish(chen et al.,2014),and created molecular sex control *** also discovered the molecular mechanism of metamorphosis in flatfish(Shao et al.,2017)and developed China's first fish disease-resistant breeding gene chip,“YUXIN No.1”.

关键词： technology breeding