期刊文献+
共找到191,100篇文章
< 1 2 250 >
每页显示 20 50 100
The 2025 version of CSC9000T has been released,using the power of responsibility to chart a new blueprint for high-quality industrial development
1
作者 Qiu Shuchen 《China Textile》 2025年第6期19-20,共2页
On November 28th,the launch conference and industry exchange seminar on the"CSC9000T Social Responsibility Management System for Textile and Apparel Enterprises(2025 Edition)"was grandly held in Beijing.Du Y... On November 28th,the launch conference and industry exchange seminar on the"CSC9000T Social Responsibility Management System for Textile and Apparel Enterprises(2025 Edition)"was grandly held in Beijing.Du Yuzhou,former President of the China National Textile and Apparel Council,and Chen Shujin,former Vice President,as well as Sun Ruizhe,Secretary of the Party Committee and President of the China National Textile and Apparel Council,and Vice President Yan Yan,witnessed the release of"CSC900OT 2025". 展开更多
关键词 industry exchange seminar high quality industrial development social responsibility launch conference social responsibility management system textile apparel enterprises CSC T
在线阅读 下载PDF
A pathway to local legitimacy:the impact of corporate governance on corporate social responsibility in chaebol‑affiliated firms
2
作者 Chune Young Chung Hoje Jo Junyoup Lee 《Financial Innovation》 2025年第1期3286-3323,共38页
Drawing on local legitimacy theory,which posits that firms seek acceptance and approval from their local community and stakeholders,we examine the effect of corporate governance(CG)quality on corporate social responsi... Drawing on local legitimacy theory,which posits that firms seek acceptance and approval from their local community and stakeholders,we examine the effect of corporate governance(CG)quality on corporate social responsibility(CSR)activities in Korea.Enhancing CG quality and engaging in CSR activities are increasingly important for firms’long-term sustainability.Using the KEJI-CSR index and the KCGS CG score,we find that CG quality positively influences CSR activities.Specifically,if the CG quality score increases by one standard deviation,CSR improves by approximately 1.6–2.3%of the mean CSR score.Furthermore,the relationship between CG and CSR is stronger for business conglomerates(chaebol-affiliated firms),suggesting that sound CG practices can promote CSR activities more effectively when the interests of management and stakeholders are better aligned.This finding supports local legitimacy theory.Our findings are robust under various tests,including difference-in-differences analysis and propensity score matching.An interesting policy implication is that multinational enterprises or foreign investors should prioritize the CG quality of their local subsidiaries or investee firms.Better CG practices can enhance CSR activities,which are essential for long-term survival in local markets.This study,however,is limited to Korea and may not be generalizable to other emerging markets with different governance structures. 展开更多
关键词 Corporate social responsibility Corporate governance Local legitimacy theory CHAEBOL Electronic voting system DIFFERENCE-IN-DIFFERENCES
在线阅读 下载PDF
WHEN HISTORY HERALDS PEACE The victory over fascism stands as both a triumph of justice and a lasting reminder of the responsibility to safeguard peace
3
作者 Yan Wei 《China Report ASEAN》 2025年第10期48-49,共2页
In a recent interview with Beijing Review,Wang Chaoguang,former director of the Institute of World History,Chinese Academy of Social Sciences,explained why victory over fascism should be commemorated eight!decades on.... In a recent interview with Beijing Review,Wang Chaoguang,former director of the Institute of World History,Chinese Academy of Social Sciences,explained why victory over fascism should be commemorated eight!decades on.Edited excerpts from the interview follow:Why do Chinese sources often refer to World War II(WWII)as the World Anti-Fascist War?How are they di!erent and what is the relationship between the two? 展开更多
关键词 World History COMMEMORATION victory fascism Anti Fascist War Chinese Sources responsibility Peace World War II
在线阅读 下载PDF
Making money move: an analysis of corporate social responsibility activities in money transfer firms
4
作者 Ọláyẹmí MỌlábìyí Jasmine Alam 《Financial Innovation》 2025年第1期3163-3180,共18页
Although research has examined the financial sector’s response to COVID-19,the role of the cross-border money transfer industry remains unclear.This study investigates the corporate social responsibility(CSR)actions ... Although research has examined the financial sector’s response to COVID-19,the role of the cross-border money transfer industry remains unclear.This study investigates the corporate social responsibility(CSR)actions of 22 cross-border money transfer firms headquartered in Canada,the US,and the UK to determine how they supported stakeholders during the pandemic.Using qualitative data analysis software,we analyze textual data from company websites,press releases,and blogs to assess CSR activities.Our findings show that nine of the 22 cross-border money transfer firms engaged in COVID-related CSR efforts and communicated these actions through their controlled channels.Two out of every three firms that publicized their CSR initiatives during the pandemic were not traded in any stock exchange market.This research has two key implications.First,disclosing CSR initiatives through controlled or uncontrolled channels increases the likelihood of attracting socially conscious customers and investors,which could ultimately lead to higher economic profits.Second,economic profit can create a bandwagon effect,encouraging other money transfer firms to integrate CSR activities into their business models,which may enhance the well-being of the communities they serve and rely upon. 展开更多
关键词 Corporate social responsibility COVID-19 Remittances MAXQDA
在线阅读 下载PDF
VAT Neutrality and Corporate Social Responsibility:Evidence from China’s 2018 VAT Credit Refund Reform
5
作者 Ningning Zhang Xiaoyan Guan 《Proceedings of Business and Economic Studies》 2025年第6期127-134,共8页
Taking China’s 2018 value-added tax(VAT)credit refund reform as an exogenous shock to improve VAT neutrality,we use a difference-in-differences approach to explore how the reform affected corporate social responsibil... Taking China’s 2018 value-added tax(VAT)credit refund reform as an exogenous shock to improve VAT neutrality,we use a difference-in-differences approach to explore how the reform affected corporate social responsibility(CSR).We find that the reform motivated firms to improve CSR performance.The reform has a“resource”effect,increasing internal funds and reducing financing costs,thereby enhancing firms’ability to undertake CSR.The reform also has a“reputation”effect,stimulating firms’willingness to engage in CSR to improve their reputations.CSR following the reform increases firm values and reduces bankruptcy risk.Our study provides fresh insights into VAT neutrality theory and is a reference for tax reform in emerging economies. 展开更多
关键词 Corporate social responsibility Reputation effect Resource effect VAT credit refund reform VAT neutrality
在线阅读 下载PDF
From“Cost Sharing”to“Responsibility Sharing”:Uncertain Prospect of US-Europe Relations
6
作者 Song Fang 《Contemporary International Relations》 2025年第2期37-59,共23页
Burden sharing has been a perennial issue in the transatlantic alliance,primarily entailing cost sharing and responsibility sharing.During the first Trump administration,the dispute over cost sharing had been prominen... Burden sharing has been a perennial issue in the transatlantic alliance,primarily entailing cost sharing and responsibility sharing.During the first Trump administration,the dispute over cost sharing had been prominent,while the Biden administration placed more emphasis on responsibility sharing to facilitate its strategic goal of“outcompeting”China.The Ukraine crisis had prompted a US-Europe consensus on cost sharing,but the urgency of responsibility sharing subsequently increased.The shift from jointly providing the economic resources to extensively sharing the security responsibilities ref lects the recalibration of the US strategic focus and its higher expectations for the role of European allies.Nevertheless,Europe's response to the US call for responsibility sharing has been relatively limited.The responsibility sharing within the US-Europe alliance and their future relationship will be subject to the strategic coordination between the two sides and multiple complex factors. 展开更多
关键词 China-US competition cost sharing responsibility sharing US-Europe alliance
在线阅读 下载PDF
Environmental Target Responsibility System,Governance,and Economic Growth
7
作者 Yan Chengliang Zhao Fuyang Niu Huan 《China Economist》 2025年第2期2-27,共26页
This paper develops an economic growth model incorporating China’s Environmental Target Responsibility System(ETRS)to analyze its impact on both economic growth and social welfare.We find that the ETRS’s effect on e... This paper develops an economic growth model incorporating China’s Environmental Target Responsibility System(ETRS)to analyze its impact on both economic growth and social welfare.We find that the ETRS’s effect on economic growth is complex,resulting from the interplay of three key factors:its potential to improve environmental quality,its potential dampening effect on total factor productivity(TFP),and its influence on local government spending on environmental governance.A balanced ETRS can improve environmental quality,promote technological innovation,and enhance social welfare.However,excessively stringent targets and overly emphasized responsibility may lead to declines in both economic growth and social welfare.From the perspective of balancing economic growth and social welfare,we find that the ETRS that maximizes economic growth is less stringent than the ETRS that maximizes social welfare.Crucially,the economic growth cost of shifting from a growth-maximizing to a welfare-maximizing ETRS is minimal.In other words,significant improvements in environmental quality and public well-being can be achieved without substantially sacrificing economic dynamism.This paper attempts to model China’s unique environmental target assessment system within the framework of endogenous growth theory,offering a new perspective for understanding the dynamic relationship between economic growth and environmental quality in China. 展开更多
关键词 Environmental target responsibility system(ETRS) environmental governance economic growth social welfare local government
在线阅读 下载PDF
Summary of Responsibility-based Teaching in Food Toxicology
8
作者 Lili JI Jie CHENG +2 位作者 Zhoulin WU Ting BAI Jiamin ZHANG 《Agricultural Biotechnology》 2025年第5期47-49,52,共4页
Food Toxicology is a core course for the major of food quality and safety.The teaching objective is to enable students to acquire the basic theoretical concepts of food toxicology,understand the toxicity and poisoning... Food Toxicology is a core course for the major of food quality and safety.The teaching objective is to enable students to acquire the basic theoretical concepts of food toxicology,understand the toxicity and poisoning mechanisms of exogenous chemicals in food,and thereby achieve the goal of ensuring food safety.This article summarized the teaching process of the course,aiming to enhance students awareness of food safety.Through the course teaching process,in-class experiments,and small topic presentation sessions,it establishes students sense of responsibility from input to output in an all-round manner,in order to provide an objective basis for improving the teaching of this course. 展开更多
关键词 Food Toxicology TEACHING responsibility
在线阅读 下载PDF
Research on the Evaluation Index System of Social Responsibility of Small and Medium-Sized Enterprises
9
作者 Yang Yang Ali Khatibi Jacquline Tham 《Proceedings of Business and Economic Studies》 2025年第3期1-9,共9页
The social responsibility of small and medium-sized enterprises(SMEs)is very important for themselves and the whole society.The concept and connotation of social responsibility of SMEs have been defined and explained.... The social responsibility of small and medium-sized enterprises(SMEs)is very important for themselves and the whole society.The concept and connotation of social responsibility of SMEs have been defined and explained.The research dimensions of previous scholars on corporate social responsibility(CSR)have been reviewed,and an evaluation index system for social responsibility of SMEs has been constructed based on their characteristics,including four key indicators:community,customers,employees,and environment. 展开更多
关键词 Corporate social responsibility SMES EVALUATION
在线阅读 下载PDF
Examining the Relationship Between Corporate Social Responsibility Performance and Stock Price Crash Risk
10
作者 Dan Zhang Xinran Zeng 《Proceedings of Business and Economic Studies》 2025年第1期44-49,共6页
This paper selects the Corporate Social Responsibility(CSR)index from Hexun.com(2010–2020)and the stock price crash index of China’s Shanghai and Shenzhen A-share listed companies from the China Stock Market&Acc... This paper selects the Corporate Social Responsibility(CSR)index from Hexun.com(2010–2020)and the stock price crash index of China’s Shanghai and Shenzhen A-share listed companies from the China Stock Market&Accounting Research Database(CSMAR)for empirical analysis.By examining the impact of CSR performance on stock price crash risk,this study identifies key relationships and further investigates the moderating role of media promotion and communication as an intermediary to explore the transmission mechanisms and influence between the two.The empirical results indicate that CSR performance is significantly negatively correlated with stock price crash risk,suggesting that strong CSR performance can effectively reduce the likelihood of a stock price crash.Furthermore,additional analysis reveals that media plays a moderating role in the relationship between CSR performance and stock price crash risk.This study aims to contribute to the understanding of the formation mechanisms and analytical paradigms of factors influencing stock price crash risk while providing theoretical support and reference value for risk prevention strategies. 展开更多
关键词 Social responsibility information disclosure Stock price crash risk Information effect
在线阅读 下载PDF
Research on Optimization of Audit Risk Relationship Model Based on Responsibility Subject
11
作者 WANG Shufeng LI Xianglin 《Journal of Modern Accounting and Auditing》 2025年第4期281-286,共6页
Based on the objective reality that audit risk responsibility has mainly been attributed to certified public accountants in the past,and audit standards have not specifically divided the entities responsible for audit... Based on the objective reality that audit risk responsibility has mainly been attributed to certified public accountants in the past,and audit standards have not specifically divided the entities responsible for audit risk responsibility,combined with the understanding of the types of audit risk elements related to audit standards,the differences in the understanding of audit risk and its relationship model application caused by the different audit cultures in China and the West have led to a bias of Chinese certified public accountants to bear inspection risks,which affects their professional enthusiasm and continues to cause accounting firms to be lazy in audit quality management.Based on this,literature research,case analysis,and logical deduction methods were used to redefine the concept of audit risk from the perspective of risk responsibility subjects.The traditional audit risk elements and their relationship models were briefly introduced,and the identification of audit risk elements and optimization of audit risk relationship models were systematically demonstrated. 展开更多
关键词 responsible party audit risk relationship model contract risk report risk
在线阅读 下载PDF
Institutional Construction of Directors’Climate Legal Responsibility Under the“Dual Carbon”Goals:From the Perspective of Climate Risks
12
作者 Wei Qingpo 《Contemporary Social Sciences》 2025年第3期114-135,共22页
Enterprises are the primary entities responsible for the multi-governance of climate risks.Nevertheless,the obligations and duty performance systems for directors,as outlined in the new Company Law of the People’s Re... Enterprises are the primary entities responsible for the multi-governance of climate risks.Nevertheless,the obligations and duty performance systems for directors,as outlined in the new Company Law of the People’s Republic of China(the new Company Law),fall short of adequately addressing the internal demands necessary for effectively managing climate risks.Therefore,it is essential to enhance these systems by incorporating specific duties for directors related to climate issues.The accountability of directors for a company’s liability regarding damages caused by climate change is rooted in the evolving purpose of China’s Company Law,the directors’duty of diligence,and the practical demand for emission reduction.Pursuant to the directors’duties set forth by the Company Law,directors’climate responsibilities mainly include two aspects:diligence and loyalty.Diligence primarily involves the total or partial failure to consider and manage foreseeable significant climate risks.Loyalty pertains to the intentional neglect of significant climate-related risks or to decision-making that does not align with the principle of maximizing the company’s interests.To enforce directors’climate responsibilities,it is necessary to introduce provisions within the Company Law that address directors’duties to control climate risks and establish appropriate compensatory measures.Furthermore,developing evidence standards for directors’liability and overcoming the limitations associated with the objects of directors’fiduciary duties is crucial.In light of the“dual carbon”goals and the foreseeability of significant financial risks posed by climate change,directors are obliged to integrate climate change considerations into corporate strategy,supervision,and disclosure,thereby contributing to the restructure of the regulatory framework governing directors’responsibilities towards green and low-carbon transformation. 展开更多
关键词 “dual carbon ”directors’climate responsibilities duty of diligence duty of loyalty climate change
在线阅读 下载PDF
刺激响应型可注射水凝胶在心肌梗死精准化治疗中的作用与趋势
13
作者 刘洋 刘东辉 +3 位作者 徐磊 展旭 孙昊博 康凯 《中国组织工程研究》 北大核心 2026年第8期2072-2080,共9页
背景:心肌梗死病理变化的个体差异性较大,传统的心肌梗死的治疗目前存在个体化及靶向性不足等局限性。刺激响应型可注射水凝胶在心肌梗死的“精准治疗”应用中展示出了巨大潜力。目的:介绍多种刺激响应型可注射水凝胶在心肌梗死中的应... 背景:心肌梗死病理变化的个体差异性较大,传统的心肌梗死的治疗目前存在个体化及靶向性不足等局限性。刺激响应型可注射水凝胶在心肌梗死的“精准治疗”应用中展示出了巨大潜力。目的:介绍多种刺激响应型可注射水凝胶在心肌梗死中的应用进展,重点介绍材料设计及心肌梗死修复效果。方法:检索中国知网、PubMed数据库中刺激响应型可注射水凝胶在心肌梗死治疗中应用的相关文献,中文检索词为“心肌梗死,可注射水凝胶,刺激响应型可注射水凝胶,纳米技术,组织工程”,英文检索词为“Myocardial infarction,injectable hydrogel,stimuli-responsive injectable hydrogel,nanotechnology,tissue engineering”,文献检索时限为各数据库建库至2025年1月,最终选取符合标准的69篇文献进行综述。结果与结论:①心肌梗死病理变化存在不同或者同一个体在时间和空间维度方面的差异,尤其在心肌梗死的炎症期,梗死区微环境恶化形成的严重炎症级联反应加剧心肌细胞死亡,故构建可依据局部病理变化按需给药的载药系统进行“精准治疗”是必要的。②心肌梗死的治疗包括控制炎症、减少活性氧生成、保护心肌细胞及避免细胞外基质重构等。③刺激响应型可注射水凝胶可以精准感受梗死区微环境以及外界刺激变化,从而导致自身形态发生应变以及治疗因子的释放,具有为病变区域提供物理支撑、实现药物及治疗因子可控靶向性输送和减少流失、提高药物及治疗因子的吸收利用率等优势。因此,具有多种功能的刺激响应型可注射水凝胶在推动心肌梗死的精准化治疗中具有巨大潜力。 展开更多
关键词 刺激响应 可注射水凝胶 心肌梗死 纳米技术 组织工程 水凝胶
暂未订购
跟骨骨折术后切口感染的病原菌耐药性及感染因素分析
14
作者 姜洪涛 薛鑫鑫 +3 位作者 聂明洋 王佳宁 王丽颖 李小东 《中国病原生物学杂志》 北大核心 2026年第1期13-16,共4页
目的探讨跟骨骨折术后切口感染的病原菌分布、耐药性、炎性反应指标变化及相关原因。方法选取2019年6月~2024年7月于本院行手术治疗的跟骨骨折患者796例作为研究对象,根据术后是否出现切口感染分为感染组(n=56)和非感染组(n=740),观察... 目的探讨跟骨骨折术后切口感染的病原菌分布、耐药性、炎性反应指标变化及相关原因。方法选取2019年6月~2024年7月于本院行手术治疗的跟骨骨折患者796例作为研究对象,根据术后是否出现切口感染分为感染组(n=56)和非感染组(n=740),观察病原菌分布特征和耐药率;采用Logistic回归分析影响跟骨骨折患者术后切口感染的危险因素。结果796例跟骨骨折患者术后经病原菌检出切口感染56例,分离出病原菌共83株,其中革兰阳性菌、革兰阴性菌、真菌分别为34株(40.96%)、46株(55.42%)、4株(4.82%)。药敏结果显示,金黄色葡萄球菌对青霉素耐药率(81.25%)最高,其次为红霉素(68.75%)、左氧氟沙星(56.25%);表皮葡萄球菌对青霉素耐药率(92.86%)最高,其次为红霉素(64.29%)、复方新诺明(50.00%);大肠埃希菌对氨苄西林耐药率(100.00%)最高,其次为头孢唑啉(86.36%);阴沟肠杆菌对头孢唑啉耐药率(100.00%)最高,其次氨苄西林为(93.33%)。感染组的糖尿病史、术后引流管未放置占比和手术时间、IL-2、CRP、PCT水平均高于非感染组(P<0.05)。多因素Logistic回归分析显示,糖尿病史、术后未放置引流管及IL-2、CRP、PCT水平升高是影响跟骨骨折患者术后切口感染的独立危险因素(P<0.05)。结论跟骨骨折术后切口感染以金黄色葡萄球菌、表皮葡萄球菌、大肠埃希菌、阴沟肠杆菌等病原菌多见,并对青霉素、红霉素、复方新诺明、氨苄西林、头孢唑啉等抗菌药物具有较高的耐药性;且糖尿病史、术后未放置引流管及IL-2、CRP、PCT水平升高是影响术后继发切口感染的危险因素,临床应提高警惕。 展开更多
关键词 跟骨骨折 切口感染 病原菌 耐药性 炎性反应
原文传递
ESG逻辑的多维透视与整合建构
15
作者 肖红军 《武汉大学学报(哲学社会科学版)》 北大核心 2026年第1期106-120,共15页
研究ESG(环境、社会和治理)的深层逻辑对于深入认识ESG和科学践行ESG具有重要意义。ESG生成的逻辑链条是“企业与社会的双向嵌入→双向影响→企业ESG”,其出场价值在于弥补传统企业行为和主流投资方式的缺陷。ESG构造不是ESG组合观所认... 研究ESG(环境、社会和治理)的深层逻辑对于深入认识ESG和科学践行ESG具有重要意义。ESG生成的逻辑链条是“企业与社会的双向嵌入→双向影响→企业ESG”,其出场价值在于弥补传统企业行为和主流投资方式的缺陷。ESG构造不是ESG组合观所认为的简单的平等元素组合,而是基于ESG系统观对ESG根本要义即理性可持续性的分解、整合、布局和协调。ESG原动力处于价值与价值观的特定连续混合区间,呈现出价值观占优型非均衡驱动、偏价值观型均衡驱动、对称型均衡驱动、偏价值型均衡驱动和价值占优型非均衡驱动五种形态。ESG实践的底层逻辑是对双向影响管理的议题化与机制化,ESG信息披露在企业信息披露体系中处于“核心地位”,其过程机理可以刻画为“德弗勒互动过程模式”。ESG生成、构造、原动力、实践、信息披露的逻辑呈现出层次性和一致性,可以通过整合根逻辑、核心逻辑主线、基础逻辑、应用逻辑形成一体化的ESG逻辑框架。 展开更多
关键词 ESG 企业社会责任 可持续发展 嵌入性
在线阅读 下载PDF
超设计基准地震作用下安全壳结构振动台试验
16
作者 裴强 邸嘉星 +3 位作者 钟颖竹 祁鹏飞 丁彧 王波 《地震研究》 北大核心 2026年第2期281-290,共10页
安全壳作为防止放射性物质泄漏关键屏障,其抗震性能至关重要。依据Buckingham定理,设计构建1/13缩尺钢制安全壳模型,通过振动台试验模拟金门公园、TAFT、EL-Centro和Pasadena地震波输入。通过在2种不同峰值加速度(PGA=0.2 g和0.4 g)条... 安全壳作为防止放射性物质泄漏关键屏障,其抗震性能至关重要。依据Buckingham定理,设计构建1/13缩尺钢制安全壳模型,通过振动台试验模拟金门公园、TAFT、EL-Centro和Pasadena地震波输入。通过在2种不同峰值加速度(PGA=0.2 g和0.4 g)条件下的测试,结合白噪声扫频,利用加速度传感器、位移传感器等收集模型动力响应数据。采用傅立叶频谱分析方法,深入探讨安全壳结构动力特性和抗震性能。结果表明:在SL-1运行安全地震动和SL-2极限安全地震动工况作用下,原型安全壳最大相对位移角仅为0.091%,最大拉应变为242.68με,未产生塑性形变,具有足够的安全裕量和良好的抗震性能。 展开更多
关键词 核电厂 钢制安全壳 振动台试验 动力响应 抗震评估
在线阅读 下载PDF
三角形钢横隔梁装配式梁桥静动力特性研究
17
作者 彭卫兵 黄晨露 +1 位作者 全柳萌 张宇涛 《工程力学》 北大核心 2026年第1期120-128,共9页
钢横隔梁作为装配式梁桥的一种新型横向连接构件,可有效解决混凝土横隔梁湿接段对不齐、高空施工难度大等顽疾,也便于主梁预制标准化,大幅度降低模板的复杂度和数量。该文提出了高强螺栓装配三角形钢横隔梁结构及相应的快速装配建造施... 钢横隔梁作为装配式梁桥的一种新型横向连接构件,可有效解决混凝土横隔梁湿接段对不齐、高空施工难度大等顽疾,也便于主梁预制标准化,大幅度降低模板的复杂度和数量。该文提出了高强螺栓装配三角形钢横隔梁结构及相应的快速装配建造施工方法,并进一步以四跨连续小箱梁桥为依托工程,采用ABAQUS有限元模型,研究了考虑路面不平度,四轴试验车辆作用下,新型钢横隔梁的装配式梁桥结构静动力特性,并通过桥梁原位荷载试验进行了实测验证。结果表明:采用钢横隔梁主梁静挠度与混凝土横隔梁相比,横向传力能力约为混凝土的0.9倍,传力性能相近;动载作用下,车速分别为20 km/h和30 km/h时,钢横隔梁受力性能约为混凝土横隔梁的95.01%和96.46%,优于静力时的93.49%;相较于混凝土横隔梁,荷载作用主梁时,设计车速内采用钢横隔梁冲击系数较小;相对于无中横隔时,钢横隔梁顶部支撑点有效减小了主梁湿接缝处混凝土的局部冲切应力,降低幅度为7.89%。 展开更多
关键词 桥梁工程 钢横隔梁 原位试验 动力响应 横向传力
在线阅读 下载PDF
利用重力与形变监测陆地水储量的时空响应:数据方法模型与技术应用现状及展望
18
作者 王林松 彭桢燃 +3 位作者 谢扬 陈钧 朱明涛 陈超 《地球与行星物理论评(中英文)》 2026年第2期129-147,共19页
陆地水作为地球水圈循环过程中质量迁移、交换及循环的主要载体,其再分布状态对气候变化与人类活动都起着至关重要的作用.地表与卫星时变/时移(4D)重力及形变观测对研究陆地水储量时空变化产生了革命性的影响,但在兼顾水文信号监测的分... 陆地水作为地球水圈循环过程中质量迁移、交换及循环的主要载体,其再分布状态对气候变化与人类活动都起着至关重要的作用.地表与卫星时变/时移(4D)重力及形变观测对研究陆地水储量时空变化产生了革命性的影响,但在兼顾水文信号监测的分辨率与敏感度等方面仍面临挑战.本文介绍了研究陆地水变化的科学背景与主要地球物理观测手段,并以重力与形变监测全球/区域水文质量信号时空响应为目标,依次阐述了近年来研究中涉及的基本原理、数据模型、处理技术、反演方法及驱动因素等领域.借助应用实例较为详细地给出了利用地表重力(连续与绝对)、卫星重力(GRACE)以及GNSS观测提取估算陆地水储量变化的基本思路与流程,讨论了截止目前重力与形变两种手段可能存在的问题与技术瓶颈.最后,简要展望了基于重力与形变技术监测水质量迁移与背后成因的应用前景.本文为深入理解陆地水储量变化及其背后的驱动因素提供了多方视角,并对水文地球物理的发展具有参考价值. 展开更多
关键词 重力与形变 陆地水储量 时空响应 气候变化 人类活动
在线阅读 下载PDF
血压反应指数对老年重症肺炎休克患者急性肾损伤的影响研究
19
作者 闵叶平 薛垚 +2 位作者 冯同保 张合 刘福菁 《中国全科医学》 北大核心 2026年第2期207-212,共6页
背景导致老年重症肺炎患者发生急性肾损伤(AKI)的危险因素目前仍未完全阐明。目的探索血压反应指数(BPRI)与老年重症肺炎休克患者发生AKI的关系。方法回顾性选取常州市第二人民医院2016—2024年收治的年龄≥60岁重症肺炎休克患者。从医... 背景导致老年重症肺炎患者发生急性肾损伤(AKI)的危险因素目前仍未完全阐明。目的探索血压反应指数(BPRI)与老年重症肺炎休克患者发生AKI的关系。方法回顾性选取常州市第二人民医院2016—2024年收治的年龄≥60岁重症肺炎休克患者。从医院的电子病历信息系统收集患者的临床资料,计算BPRI,BPRI=平均动脉压/血管活性药物使用强度。记录患者住院后是否发生AKI以及30 d生存率。使用多因素Logistic回归分析探讨BPRI与重症肺炎休克患者发生AKI的关系。采用受试者工作特征(ROC)曲线评估BPRI预测重症肺炎休克患者发生AKI的效能,采用ROC曲线下面积(AUC)表示预测效能大小。使用Kaplan-Meier生存曲线分析不同AKI风险患者的30 d死亡率,Log-rank检验生存差异。结果本研究最终纳入237例患者,其中96例(40.5%)发生AKI。多因素Logistic回归分析结果显示,BPRI升高是重症肺炎休克患者发生AKI的保护因素(OR=0.751,95%CI=0.678~0.831,P<0.001),乳酸水平升高(OR=1.239,95%CI=1.039~1.477,P=0.017)、序贯器官衰竭评估(SOFA)评分升高(OR=1.930,95%CI=1.497~2.488,P<0.001)是重症肺炎休克患者发生AKI的危险因素。ROC曲线结果显示,BPRI预测重症肺炎休克患者发生AKI的AUC为0.809(95%CI=0.752~0.865),临界值为10.063。根据BPRI的临界值将患者分为发生AKI高风险患者(BPRI≥10.063,n=79)和发生AKI低风险患者(BPRI<10.063,n=158),Kaplan-Meier曲线显示AKI高风险患者的30 d累积生存率低于AKI低风险患者(χ^(2)=35.310,P<0.001)。结论BPRI升高是老年重症肺炎休克患者发生AKI的保护因素,对预测患者发生AKI具有良好的效能。 展开更多
关键词 重症肺炎 血压反应指数 休克 急性肾损伤 影响因素分析
暂未订购
反刻板印象的广告传播效应:前因、作用机制和结果
20
作者 侯旻 张培镇 +2 位作者 李志文 顾春梅 李芳洲 《心理科学进展》 北大核心 2026年第1期157-174,共18页
随着消费者对多样性和平等的关注不断提升,反刻板印象逐渐成为营销领域尤其是广告传播的重要实践。但现有研究对反刻板印象的动态作用机制及其媒体情境差异尚缺乏系统性整合。结合营销学SOR(Stimulus-Organism-Response)理论和ADO(Antec... 随着消费者对多样性和平等的关注不断提升,反刻板印象逐渐成为营销领域尤其是广告传播的重要实践。但现有研究对反刻板印象的动态作用机制及其媒体情境差异尚缺乏系统性整合。结合营销学SOR(Stimulus-Organism-Response)理论和ADO(Antecedents-Decisions-Outcomes)分析框架,可系统解析反刻板印象的广告传播效应,同时明确反刻板印象干预的“双刃剑”特征和信息接受阈值效应。研究着重探讨反刻板印象广告传播效应的媒介差异,揭示传统媒体和新媒体在进行反刻板印象传播时存在的媒体适配性差异。未来研究应注意如何利用反刻板印象来改善社会偏见,及其在人工智能领域的应用对广告传播的影响,同时促进反刻板印象研究的跨学科合作。 展开更多
关键词 反刻板印象 广告传播 媒体营销 SOR理论 ADO框架
在线阅读 下载PDF
上一页 1 2 250 下一页 到第
使用帮助 返回顶部