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企业金融化一定会挤出实业投资吗——基于中国A股非金融上市公司的实证分析

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当代财经 2020年第7期 63-74页

作者：严武李明玉江西财经大学金融学院江西南昌330013 南昌理工学院财经学院江西南昌330044

实业投资率下降和金融化率上升,是目前中国企业投资结构的典型特征。基于2007—2018年中国A股非金融(含非房地产)上市公司的实证研究表明,企业金融化对实业投资的相关效应是依赖一定条件而产生的。从投资资金的需求角度看,金融化存量会... 详细信息

实业投资率下降和金融化率上升,是目前中国企业投资结构的典型特征。基于2007—2018年中国A股非金融(含非房地产)上市公司的实证研究表明,企业金融化对实业投资的相关效应是依赖一定条件而产生的。从投资资金的需求角度看,金融化存量会对当期实业投资产生"挤出效应",主要发生在低股利分配公司,且不具有持续性;从投资资金的供给角度看,金融化流量会对下期实业投资产生"蓄水池效应",主要发生在较高股利分配公司。因此,企业应合理配置金融资产在总资产中的结构比例,更好地发挥金融收益对实业投资的"蓄水池效应";政府应鼓励灵活化的股利分配方式和加强信息披露,增强企业的实业投资意愿,同时提高金融改革和货币政策的针对性和实施效率。

关键词：企业金融化实业投资挤出效应蓄水池效应融资约束

心肌梗死后心室电重构的细胞和分子生物学机制

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中国病理生理杂志 2008年第11期24卷 2276-2281页

作者：罗涛李玉明天津医科大学天津300070 中国人民武装警察部队医学院附属医院心血管病研究所天津300162

Arrhythmia is common in cardiovascular diseases, especially after myocardial infarction. This article reviews the electrophysiologic changes following myocardial infarction at different phases. Modulations of ion channel function that might contribute to electrical remodeling, such as cellular (autocrine/paracrine) factors and regulators of ion channel gene, are discussed. Unresolved problems in ventricular electrical remodeling after myocardial infarction are also considered.

关键词：心律失常心肌梗死心室电-重构

PAFC-PDM复合混凝剂强化混凝去除水库源水中的藻类

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中国环境科学 2014年第7期34卷 1763-1768页

作者：李明玉孙玉君刘丽娟潘倩汪琳任刚暨南大学环境工程系暨南大学水处理工程研究中心广东广州510630

将聚二甲基二烯丙基氯化铵（PDMDAAC）与聚合氯化铝铁（PAFC）复合制备了新型复合混凝剂PAFC-PDMDAAC （PAFC-PDM）,对含藻的水库原水进行强化混凝处理研究.研究对比了PAFC-PDM,PAFC与预氯化工艺的除藻效果,并对其混凝除藻机理进行了初... 详细信息

将聚二甲基二烯丙基氯化铵（PDMDAAC）与聚合氯化铝铁（PAFC）复合制备了新型复合混凝剂PAFC-PDMDAAC （PAFC-PDM）,对含藻的水库原水进行强化混凝处理研究.研究对比了PAFC-PDM,PAFC与预氯化工艺的除藻效果,并对其混凝除藻机理进行了初步探讨.结果表明,对于藻细胞数为7.98×10^6-1.17×10^7cells/L和浊度为2.56-3.59NTU的水库原水,当PAFC-PDM投加量为1.0mg/L时（以Al2O3计）,藻类和浊度的去除率分别达到93.5%和81.7%,显著优于PAFC的混凝处理效果；对藻细胞进行扫描电镜和预氯化副产物分析表明,预氯化杀藻除藻方法,不仅破坏了藻细胞结构,而且产生了三卤甲烷类氯化消毒副产物,影响饮水水质；采用PAFC-PDM强化混凝工艺除藻,不破坏藻细胞,无消毒副产物.

关键词：强化混凝除藻聚合氯化铝铁聚二甲基二烯丙基氯化铵

Effects of acetazolamide and anordiol on osmotic water permeability in AQP1-cRNA injected Xenopus oocyte

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Acta Pharmacologica Sinica 2004年第1期 92-99页

作者： Bing MA, Yang XIANG, Sheng-mei MU, Tao li, He-ming yu, Xue-jun liDepartment of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing 100083 National Research Institute for Family Planning, Beijing 100081, China

AIM: To study the effects of acetazolamide and anordiol on osmotic water permeability in aquaporin 1 (AQP1)-cRNA injected Xenopus oocyte and their mechanisms. METHODS: AQP1 gene constructed in pBluescript was transcripted into cRNA in vitro and then the cRNA was injected in Xenopus oocytes. The effects of acetazolamide and anordiol on the water transport function of AQP1 were observed by assaying the osmotic swelling of oocytes. In addition, their effects on protein expression of AQP1 were quantitatively investigated by Western blotting method. RESULTS: After incubation for 15 min or 72 h, acetazolamide, a carbonic anhydrase inhibitor, equally reduced the water permeability of AQP1-cRNA injected oocyte in a dose-dependent manner. After incubation for 72 h, anordiol, an antiestrogen with partial estrogenic activity, reduced the osmotic water permeability dose dependently as well; however, no discernable action was observed after incubation with anordiol for 15 min. The Western blotting

关键词： aquaporins acetazolamide anordiol permeability Xenopus

儿童阻塞性睡眠呼吸暂停低通气综合征对抗利尿激素水平的影响

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中华耳鼻咽喉头颈外科杂志 2008年第3期43卷 179-182页

作者：岳志勇王明明李红李玉明于永慧王海波山东大学附属省立医院耳鼻咽喉科济南250021 山东大学附属省立医院儿科济南250021

目的探讨儿童阻塞性睡眠呼吸暂停低通气综合征（obstructive sleep apnea hypopneasyndrome, OSAHS）对体内抗利尿激素（antidiuretic hormone，ADH）分泌水平的影响。方法30例确诊为OSAHS的患儿分别于扁桃体＋腺样体切除术前和术后行... 详细信息

目的探讨儿童阻塞性睡眠呼吸暂停低通气综合征（obstructive sleep apnea hypopneasyndrome, OSAHS）对体内抗利尿激素（antidiuretic hormone，ADH）分泌水平的影响。方法30例确诊为OSAHS的患儿分别于扁桃体＋腺样体切除术前和术后行多道睡眠监测，在深睡期取静脉血采用放射免疫技术检测患儿血浆中ADH水平并记录夜间12h尿量，与20例健康儿童夜间深睡期ADH水平和12h夜尿量进行比较分析。结果OSAHS患儿呼吸暂停低通气指数术后2个月由术前（17．4±2．6）次/h（x±s，下同）下降至（3．3±1．4）次／h，最低动脉血氧饱和度由0．783±0．134上升至0．954±0．062，差异有统计学意义（t值分别为27．68和6．45，P值均〈0．001）。OSAHS患儿夜间血浆ADH水平为（63．1±35．2）ng／L，明显低于健康儿童的（85．1±22．2）ng／L，夜尿量（492±90）ml显著高于健康儿童（346±62）ml，差异有统计学意义（t值分别为2．75和6．43，P值均〈0．01）；治疗后ADH达（83．1±21．2）ng／L，较术前明显上升（t=2．56，P〈0．05），夜尿量（332±56）ml较术前明显下降（t=7．85，P〈0．001），与健康儿童相比差异均无统计学意义（t值分别为0．17和0．77，P值均〉0．05）。结论OSAHS患儿可能因夜间ADH水平下降导致夜尿增多，解除呼吸道梗阻使患儿睡眠恢复正常，可能促使ADH水平趋于正常，夜间尿量减少。

关键词：儿童睡眠呼吸暂停阻塞性血管升压素类多尿

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预应力锚杆复合土钉墙支护体系增量解析方法

岩土力学 2019年第A1期40卷 253-258,266页

作者：郭院成李明宇张艳伟郑州大学土木工程学院河南郑州450001 同济大学地下建筑系上海200092

以预应力锚杆复合土钉支护体系受力变形为分析对象,假定潜在滑裂面为平面,并考虑土体分层开挖过程,将施加预应力作为一个施工工况,建立了预应力锚杆复合土钉支护体系受力变形的增量解析方法。锚杆预应力和设置位置影响分析表明,随着锚... 详细信息

以预应力锚杆复合土钉支护体系受力变形为分析对象,假定潜在滑裂面为平面,并考虑土体分层开挖过程,将施加预应力作为一个施工工况,建立了预应力锚杆复合土钉支护体系受力变形的增量解析方法。锚杆预应力和设置位置影响分析表明,随着锚杆预应力值的增加,潜在滑裂面的倾角逐渐减小,对基坑整体稳定性的贡献先增大后减小;锚杆设置越低,增加预应力对基坑整体稳定性的贡献越大。通过实际基坑支护工程的数值模拟分析与施工过程监测结果的对比分析,验证了考虑预应力锚杆施工过程特点的复合土钉支护体系增量解析方法的合理性。

关键词：基坑支护工程预应力锚杆复合土钉支护体系增量解析法数值模拟

Comparison of long-term clinical outcome between transcatheter Amplatzer occlusion and surgical closure of isolated patent ductus arteriosus

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Chinese Medical Journal 2009年第10期122卷 1123-1127页

作者： CHEN Zhao-yang WU li-ming LUO yu-kun liN Chao-gui PENG Ya-fei ZHEN Xing-chun CHEN liang-long Department of Cardiology Union Hospital Fujian Medical University Fuzhou Fujian 350001 China

Background Transcatheter Amplatzer occlusion of patent ductus artertiosus （PDA） has emerged as a minimally invasive alternative to surgical closure. The goal of this study was to compare long-term clinical outcomes between two procedures, especially on chronic residual shunt, late or very late procedure-related complications, and regression of pulmonary hypertension and left ventricular dilation.Methods A total 255 patients having isolated PDA with a minimal diameter of ≥4 mm treated from January 2000 to July 2003 were included in this study and have been followed up until July 2008. The patients were assigned to either the device or surgical closure group according to the patients＇ and/or their parents＇ preference. Baseline physical exams, chest roentgenography, electrocardiography, and echocardiography were performed preprocedure and at each follow-up. Results Seventy-two patients accepted the transcatheter procedure （Group-TC） and 183 underwent surgical operation （Group-SO） for PDA closure, both groups were similar in their demographics and preoperative clinical characteristics. There were no cardiac deaths and late complications such as infectious endocarditis and Amplatzer duct occluder （ADO） dislodge in either group. More acute procedure-related complications were recorded in Group-SO （13.7%） compared with Group-TC （1.4%）（P=0.004）. The recovery time was （8.7±2.3） days for the Group-SO and （1.3＋0.5） days for the Group-TC （P〈0.001）. The survival freedom from persistent residual shunt, defined as residual shunt that can not resolve automatically, was 91.3% for Group-SO and 98.6% for Group-TC （P=0.037 by Log-rank test）. There was no significant difference in regression of pulmonary hypertension and left ventricular dilation; neither survival freedom from pulmonary hypertension nor abnormal left ventricular end-diastolic volume index were significantly different between the surgical group and the Amplatzer group.Conclusions Our study confirmed the long-term sa

关键词： interventional therapy eardiac surgical procedure comparative study

CNKSR2 interactome analysis indicates its association with the centrosome/microtubule system

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Neural Regeneration Research 2025年第8期20卷 2420-2432页

作者： lin Yin Yalan Xu Jie Mu yu Leng Lei Ma yu Zheng Ruizhi li Yin Wang Peifeng li Hai Zhu Dong Wang Jing li Institute for Translational Medicine The Affiliated Hospital of Qingdao UniversityMedical CollegeQingdao UniversityQingdaoShandong ProvinceChina School of Basic Medicine Qingdao UniversityQingdaoShandong ProvinceChina College of life Sciences and School of PharmacyMedical CollegeQingdao UniversityQingdaoShandong ProvinceChina Department of Urology Qingdao Municipal Hospital Affiliated to Qingdao UniversityQingdaoShandong ProvinceChina

The protein connector enhancer of kinase suppressor of Ras 2(CNKSR2),present in both the postsynaptic density and cytoplasm of neurons,is a scaffolding protein with several protein-binding *** of the CNKSR2 gene have been implicated in neurodevelopmental disorders,particularly intellectual disability,although the precise mechanism involved has not yet been fully *** has demonstrated that CNKSR2 plays a role in facilitating the localization of postsynaptic density protein complexes to the membrane,thereby influencing synaptic signaling and the morphogenesis of dendritic ***,the function of CNKSR2 in the cytoplasm remains to be *** this study,we used immunoprecipitation and high-resolution liquid chromatography-mass spectrometry to identify the interactors of *** a combination of bioinformatic analysis and cytological experiments,we found that the CNKSR2 interactors were significantly enriched in the proteome of the *** also showed that CNKSR2 interacted with the microtubule protein DYNC1H1 and with the centrosome marker *** colocalization analysis confirmed the centrosomal localization of *** we downregulated CNKSR2 expression in mouse neuroblastoma cells(Neuro 2A),we observed significant changes in the expression of numerous centrosomal *** manipulation also affected centrosome-related functions,including cell size and shape,cell proliferation,and ***,we found that CNKSR2 interactors were highly enriched in de novo variants associated with intellectual disability and autism spectrum *** findings establish a connection between CNKSR2 and the centrosome,and offer new insights into the underlying mechanisms of neurodevelopmental disorders.

关键词： autism spectrum disorder centrosome CNKSR2 intellectual disability interactome mass spectrometry microtubule neurodevelopmental disease protein complexes protein-protein interactions

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煤层气集输系统颗粒杂质分布及应对措施

煤炭学报 2016年第9期41卷 2281-2286页

作者：刘震姬忠礼于明俭赵峰霆中国石油大学(北京)机械与储运工程学院北京100249 过程流体过滤与分离技术北京市重点实验室北京100249 中国石油大学(北京)化学工程学院北京100249

受煤层气田地质情况和抽采方式等影响,煤层气在从井口到外输的气田集输过程中常夹带有粉尘和水分等杂质,影响地面集输系统安全运行。为了解集输管道内杂质现状,利用管道内颗粒物在线检测方法,检测了井口、阀组和集气站等多处集输节点的... 详细信息

受煤层气田地质情况和抽采方式等影响,煤层气在从井口到外输的气田集输过程中常夹带有粉尘和水分等杂质,影响地面集输系统安全运行。为了解集输管道内杂质现状,利用管道内颗粒物在线检测方法,检测了井口、阀组和集气站等多处集输节点的粉尘质量浓度和粒径分布、游离水和水蒸气含量等数据,发现了液体杂质的含量较大,并分析得到杂质在集输管道内的沉积现象。从不同区块的井口、压缩机后等位置捕集杂质并进行成分分析,得到了固体杂质的成分和液体杂质的物性,发现压缩机前后杂质成分差异较大。针对地面集输系统的分离设备存在的问题,提出了现场在用过滤元件的改进措施,通过实验室测试和现场试验证明了改进后的过滤元件具有低阻高效的特点,适用于低压低成本特点的煤层气田地面集输系统。

关键词：煤层气集输系统颗粒杂质过滤元件