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The Effects of Cooperative Learning in Enhancing the Performance Level of Grade-10 Mathematics Students in Talavera National High School in the Philippines
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作者 Analyn D. Gamit Jacquiline A. Antolin Arneil G. Gabriel 《Journal of Applied Mathematics and Physics》 2017年第12期2386-2401,共16页
Mathematics is considered by many students as a difficult academic subject. To improve their performance, various learning strategies are employed by teachers abandoning the conventional method. This study focused on ... Mathematics is considered by many students as a difficult academic subject. To improve their performance, various learning strategies are employed by teachers abandoning the conventional method. This study focused on the cooperative learning as a method to enhance level of performance of grade 10 mathematics students in the Philippines. It looked into the method and how it influenced students’ performance. By using a quasi-experimental research method, the following results are generated: 1) the method positively improved the performance in mathematics of the control and experimental groups;2) while effectiveness assessment showed a highly effective result;and 3) the application of the method showed a positive impact on the participants as shown by their positive perception of the subject mathematics. 展开更多
关键词 MATHEMATICS cooperative Learning ACADEMIC performance GRADE 10 Component
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The Impact of Corporate Governance on Banks Performance and Loan Quality: Evidence From Italian Cooperative Banks
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作者 Candida Bussoli Marisa Gigante Maria Bruna Tritto 《Chinese Business Review》 2015年第8期390-401,共12页
In the banking system, a context characterized by growing instability and by the speed of evolution of business dynamics, the system of corporate governance plays a key role, both for large banks and for banks with a ... In the banking system, a context characterized by growing instability and by the speed of evolution of business dynamics, the system of corporate governance plays a key role, both for large banks and for banks with a smaller size. The paper aims to investigate the influence of corporate governance of the banks that operate in the cooperative credit system on performance and quality of loans, over the years 2010-2011-2012. In order to achieve this aim, the following research hypotheses have been formulated: There is a statistically significant relationship between the size and the structure of the board and banks Performance operating in the cooperative credit system; there is a statistically significant relationship between the size and structure of the board and the credit quality of banks operating in the cooperative credit system. The analysis is conducted on a sample composed of 48 Italian banks, divided into 24 cooperative banks and 24 popular banks. The sample is made up of banks from all over Italy and very different in terms of dimension. For the sample construction, data relative to governance of banks were collected from the balance sheets in the period from June to August 2014. Financial-economic data were collected from the Financial Statements and from Bankscope database. The methodology of analysis is based on multivariate OLS (ordinary least squares) regression models. The main results refer to the presence of significant relationships between board dimension and the quality of loans and among the number of committees and performance and the quality of loans. The presence of a significant and negative relationship between the board dimension and the ratio of impaired loans to gross loans indicates the possibility that enlargement of board dimension allows a better quality of loans. The presence of a positive relationship between the number of committees and the ratio of impaired loans to gross loans signals the possibility that a greater number of committees can produce a worse quality of loans. The presence of a negative relationship between the number of committees and bank performance suggests to limit and manage the complexity of governance in banks operating in the cooperative credit system. 展开更多
关键词 bank cooperative credit system corporate governance loans quality performance
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A Research on the Relationship of Charismatic Leadership Behaviors of Agricultural Cooperative Managers With Cooperative Shareholders' Performance and Satisfaction
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作者 Necdet Bilgin Aykut Isleyen 《Chinese Business Review》 2016年第4期186-197,共12页
In this study, the cooperative shareholders' performance and satisfaction were investigated as antecedent. Charismatic leadership of cooperative managers has been identified as antecedent. In addition, shareholders'... In this study, the cooperative shareholders' performance and satisfaction were investigated as antecedent. Charismatic leadership of cooperative managers has been identified as antecedent. In addition, shareholders' age, education, land size, and duration of membership in the cooperative were investigated to have effect on the shareholder's performance and satisfaction. Charismatic leadership of cooperative managers is the subject of research on the effects of performance and satisfaction of the cooperative shareholders. A field survey was conducted. This study has been applied to Cukobirlik, an agricultural sale cooperative in East Mediterranean of Turkey. The researchers collected data by random questionnaire method. The research data were collected from 155 cooperative shareholders. For the data, exploratory factor, correlation, and regression were analyzed. The results of this analysis show that there is a meaningful relationship between charismatic leaders and the performance and satisfaction of shareholders for these cooperatives. Another result, there is significant relation between land size of cooperative shareholders and the performance and satisfaction of cooperative shareholders. 展开更多
关键词 charismatic leadership agricultural cooperative cooperative shareholder's performance and satisfaction
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The Governance Structure and Performance of Agricultural Cooperative Economic Organizations in the Three Gorges Reservoir Area
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作者 YU Kai-hong College of Economics and Management,Chongqing Three Gorges University,Chongqing 404100,China 《Asian Agricultural Research》 2012年第8期42-48,共7页
On the basis of questionnaire survey results of 100 agricultural cooperative economic organizations in Three Gorges Reservoir Area,this article uses the structural equation modeling as analysis tool to conduct empiric... On the basis of questionnaire survey results of 100 agricultural cooperative economic organizations in Three Gorges Reservoir Area,this article uses the structural equation modeling as analysis tool to conduct empirical analysis of the governance structure and performance of agricultural cooperative economic organizations. The results show that the ownership structure has the most critical impact on the performance of cooperative organizations,and the impact coefficient is as high as 0.92; the importance of oversight mechanism is basically equivalent to that of the council structure for cooperative organizations,and the impact coefficient is 0.87 and 0.86,respectively,second only to the ownership structure; the size of members' quit capacity also has a very important impact on the performance of organizations,with impact coefficient of 0.74. Thus,the problems influencing the performance of organizations,in the current governance structure of agricultural cooperative economic organizations in Three Gorges Reservoir Area,are pointed out. Finally,corresponding countermeasures are put forward. 展开更多
关键词 STRUCTURAL EQUATION MODELING THREE Gorges Reservoi
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Interconversion of two commonly used performance tools: An analysis of 5844 paired assessments in 1501 lung cancer patients 被引量:2
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作者 Kuruswamy Thurai Prasad Harpreet Kaur +3 位作者 Valliappan Muthu Ashutosh Nath Aggarwal Digambar Behera Navneet Singh 《World Journal of Clinical Oncology》 CAS 2018年第7期140-147,共8页
AIM To establish the Karnofsky performance status(KPS) categories which would facilitate the interconversion of the KPS scale to the Eastern Cooperative Oncology Group(ECOG) performance status(PS) scale.METHODS This w... AIM To establish the Karnofsky performance status(KPS) categories which would facilitate the interconversion of the KPS scale to the Eastern Cooperative Oncology Group(ECOG) performance status(PS) scale.METHODS This was a retrospective analysis of all patients attending the lung cancer clinic at a tertiary care center over a 5-year period(September 2009 to August 2014). All patients were assessed with both KPS and ECOG PS scales at each visit. Correlation between KPS and ECOG PS was assessed using Spearman's correlation coefficient. KPS categories equivalent to ECOG PS scores were compared using hit rate and weighted kappa(κw).RESULTS A total of 1501 patients were assessed over the study period, providing 5844 paired KPS and ECOG PS assessments. The study cohort had a mean(standard deviation; SD) age of 58.4(10.8) years, with the majority being current or ex-smokers(76.9%) and males(82.3%). Non-small cell lung cancer was the most common histological type(n = 1196, 79.7%) with the majority having advanced(stage ⅢB/Ⅳ) disease(83.4%). Mean baseline KPS and ECOG PS scores were 77.6(SD = 14.4) and 1.5(SD = 1) respectively. The most frequent KPS score was 80(29%), and the most frequent ECOG PS score was 1(43%). The overall correlation between KPS and ECOG PS was good(Spearman r =-0.84, P < 0.0001) but ranged from-0.727 to-0.972 between visits. KPS categories derived from our cohort [10-40(ECOG 4), 50-60(ECOG 3), 70(ECOG 2), 80-90(ECOG 1), 100(ECOG 0)] performed better [hit rate 78.1%, κw = 0.749(0.736-0.762) P < 0.0001] than those suggested in the past literature.CONCLUSION The current study provides the largest set of paired KPS-ECOG assessments to date. We suggest that the KPS categories 10-40, 50-60, 70, 80-90, and 100 are equivalent to ECOG PS categories of 4, 3, 2, 1, and 0 respectively. 展开更多
关键词 Karnofsky performance STATUS EASTERN cooperative ONCOLOGY Group performance STATUS Lung cancer CHEMOTHERAPY
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Assessing Financial Management Practices and Accounting Mechanisms in Agricultural Cooperatives:A Case Study From Nepal
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作者 Chiranjeewee Khadka Ghanshyam Pandey +1 位作者 Arbin Poudel Eva Cudnilova 《Management Studies》 2024年第3期146-171,共26页
The study focuses on assessing the financial management practices and accounting mechanisms in agricultural cooperatives in Tulsipur Sub-Metropolitan,Dang District,Nepal with a focus on understanding their implication... The study focuses on assessing the financial management practices and accounting mechanisms in agricultural cooperatives in Tulsipur Sub-Metropolitan,Dang District,Nepal with a focus on understanding their implications for financial performance and organizational effectiveness.The sample size of total cooperatives(n=46)was divided into Savings and Credit Cooperatives(n=18)and Multipurpose Cooperatives(n=28),respectively,with a total number of respondents(n=138)categorized into managing directors,employees,and general members.Using a mixed-methods approach that combines quantitative analysis of financial data with qualitative insights gathered through interviews and surveys,the study emphasizes the importance of modern financial practices,improved reporting mechanisms,and relevant staff training for long-term sustainability.Recommendations include the integration of criteria and evaluation tools to assess cooperative performance,with Hamro Pahunch Multipurpose Cooperative identified as a high performer.Emphasizing the need for robust financial management strategies to navigate the complexity of the agricultural sector,manage risks,and achieve sustainable development,the study notes frequent preparation of financial management reports on a monthly and annual basis,and predominantly annual accounting management.Most cooperatives are using computerized models to present financial positions,but face challenges such as lack of marketing infrastructure,cooperative skills,and technical support.Ultimately,the study advocates for educating policy makers,cooperative leaders,practitioners and stakeholders on the role of effective financial management and accounting in enhancing the resilience,expansion and socio-economic impact of agricultural cooperatives,thereby fostering their long-term prosperity and viability as drivers of rural development and empowerment. 展开更多
关键词 accounting mechanisms agricultural cooperatives financial management evaluation criteria and performance TRANSPARENCY
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利用Cooper NU-14试验系统评价沥青混合料疲劳性能 被引量:6
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作者 万成 张肖宁 虞将苗 《华南理工大学学报(自然科学版)》 EI CAS CSCD 北大核心 2009年第7期52-56,共5页
目前国内采用的室内疲劳试验方法主要是间接拉伸法(即劈裂试验).鉴于其在加载方式与路面实际受力状态方面存在较大差别、实际开裂模式与理论开裂位置经常不一致,笔者尝试使用一种四点弯曲疲劳试验系统(即Cooper NU-14试验系统)评价沥青... 目前国内采用的室内疲劳试验方法主要是间接拉伸法(即劈裂试验).鉴于其在加载方式与路面实际受力状态方面存在较大差别、实际开裂模式与理论开裂位置经常不一致,笔者尝试使用一种四点弯曲疲劳试验系统(即Cooper NU-14试验系统)评价沥青混合料的疲劳性能.文中详细介绍了试验设备、试件制作,试验参数设定,试验加载整个过程,对采用不同沥青类型的混合料以及SMA的疲劳性能进行了试验及定量对比分析.结果表明:该试验系统能有效地评价非均匀材质的沥青混合料疲劳性能,沥青结合料性质和集料级配对沥青混合料的疲劳性能都有非常重要的影响. 展开更多
关键词 沥青混合料 四点弯曲 疲劳性能 cooper NU-14
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Improved Bi-Directional Three-Phase Single-Relay Selection Technique for Cooperative Wireless Communications 被引量:2
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作者 Samer Alabed Issam Maaz Mohammad Al-Rabayah 《Computers, Materials & Continua》 SCIE EI 2022年第1期999-1015,共17页
Single-relay selection techniques based on themax-min criterion can achieve the highest bit error rate(BER)performance with full diversity gain as compared to the state-of-the-art single-relay selection techniques.The... Single-relay selection techniques based on themax-min criterion can achieve the highest bit error rate(BER)performance with full diversity gain as compared to the state-of-the-art single-relay selection techniques.Therefore,in this work,we propose a modified max-min criterion by considering the differences among the close value channels of all relays while selecting the best relay node.The proposed criterion not only enjoys full diversity gain but also offers a significant improvement in the achievable coding gain as compared to the conventional one.Basically,in this article,an improved bi-directional three-phase single-relay selection technique using the decodeand-forward protocol for wireless cooperative communication networks that enhances the overall network performance in terms of BER is proposed and its performance is proved analytically and through Monte-Carlo simulations.More specifically,the proposed criterion is first used to select the best relaynode.After that the selected relay-node forwards the information symbols of the communicating terminals after performing a digital network coding to minimize power consumptions.In our simulations,we show that our proposed technique outperforms the best-known single relay selection techniques.Furthermore,we prove that the BER results obtained from our conducted simulations perfectly match those obtained from the theoretical analysis. 展开更多
关键词 performance analysis cooperative diversity schemes digital network coding relay selection schemes
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Characteristics of high performing employees in China
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作者 Yulin Ni 《International Journal of Technology Management》 2013年第6期61-63,共3页
Performance, from management's perspective, is the desired result of organization, the effective output showed on different levels by the organization to achieve its objectives, including individual performance and o... Performance, from management's perspective, is the desired result of organization, the effective output showed on different levels by the organization to achieve its objectives, including individual performance and organizational performance. The achievement of the organizational performance should be on the basis of individual performance, while the realization of individual performance does not necessarily ensure the organizational performance. If, according to certain logic, the organization's performance is decomposed to each job and each person, as long as each individual reaches the organization's requirements, can the organization's performance realized. 展开更多
关键词 high performing employees performance evaluation standard cooperative.
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知己彼,方谋合:创新绩效反馈对企业研发合作的影响 被引量:2
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作者 刘娜 王孟博 +1 位作者 毛荐其 魏延辉 《科技进步与对策》 CSSCI 北大核心 2024年第4期78-89,共12页
绩效反馈在企业行为决策中发挥重要作用。基于2010—2020年中国A股计算机、通信和其它电子设备制造业上市公司样本数据,探讨创新绩效反馈(以创新结果测度的细化绩效反馈)对企业研发合作的影响,以及企业研发强度对两者关系的调节作用,进... 绩效反馈在企业行为决策中发挥重要作用。基于2010—2020年中国A股计算机、通信和其它电子设备制造业上市公司样本数据,探讨创新绩效反馈(以创新结果测度的细化绩效反馈)对企业研发合作的影响,以及企业研发强度对两者关系的调节作用,进一步比较上述影响在不同性质企业(国有企业与非国有企业、家族企业与非家族企业)中的异同。结果发现:历史、行业创新绩效期望落差对企业研发合作具有负向影响,历史、行业创新绩效期望顺差对企业研发合作具有正向影响。企业研发强度正向调节历史、行业创新绩效期望落差与企业研发合作间的负相关关系,正向调节历史、行业创新绩效期望顺差与企业研发合作间的正相关关系。在拓展性分析中,与非国有企业相比,国有企业创新绩效期望顺差对研发合作的正向影响更显著,其落差的负向影响也更显著。与非家族企业相比,家族企业创新绩效期望顺差对研发合作广度的正向影响更显著,对研发合作深度的影响较小;家族企业创新绩效期望落差对研发合作广度的负向影响更显著,对研发合作深度的负向影响较小。结论具有明确的企业创新活动指向性,有利于丰富企业研发合作决策情景。 展开更多
关键词 创新绩效反馈 历史绩效反馈 行业绩效反馈 企业研发合作 研发强度
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合作的解构:政府购买服务项目执行过程的政社关系 被引量:1
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作者 杨宝 殷小娟 《学习与实践》 CSSCI 北大核心 2024年第3期94-104,共11页
政府购买服务构建了政府与社会组织的“合作场景”。然而,为什么政府购买服务项目执行过程中政社合作关系经过“解构”迈向了多元复杂类型?基于项目执行过程的微观情境,本文提出了政社关系演化的“政绩共享-资源庇护”解释框架,案例比... 政府购买服务构建了政府与社会组织的“合作场景”。然而,为什么政府购买服务项目执行过程中政社合作关系经过“解构”迈向了多元复杂类型?基于项目执行过程的微观情境,本文提出了政社关系演化的“政绩共享-资源庇护”解释框架,案例比较分析发现:第一,政府与社会组织关系处于“非对称性依赖”格局,基层政府因其在地化的资源动员能力主导了政社合作的“解构”过程。第二,理性的基层政府权衡政绩共享收益和资源庇护责任之后确定了政社合作的“重构”方向,即合作、俘获、限制、替代等多元化关系类型。进一步分析发现,政府与社会组织的资源动员能力决定其互动关系走向,政府主导的“资源的权力网络”使得政社关系转向了“合作的解构”。研究结论为理解政社关系提供了全新视角,对于推动政社合作供给公共服务具有政策启示。 展开更多
关键词 合作的解构 政绩共享 资源庇护 政府购买服务
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农民专业合作社的规范与发展——“鱼与熊掌”能否兼得? 被引量:1
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作者 崔宝玉 马璐 《中国农业大学学报(社会科学版)》 CSSCI 北大核心 2024年第2期179-202,共24页
农民专业合作社的规范与发展能否兼得?何以兼得?这对审视当下中国合作社发展路径具有重大意义。本研究基于安徽省423家国家级示范社监测数据,探讨了规范治理对经营绩效的影响,分析了何种权利安排能够实现合作社兼顾规范与发展。研究发现... 农民专业合作社的规范与发展能否兼得?何以兼得?这对审视当下中国合作社发展路径具有重大意义。本研究基于安徽省423家国家级示范社监测数据,探讨了规范治理对经营绩效的影响,分析了何种权利安排能够实现合作社兼顾规范与发展。研究发现:第一,规范治理对合作社经营绩效具有显著正向影响,且对组织绩效的增进效应强于对社员绩效的增进效应。第二,盈余分配和民主决策规范对合作社经营绩效的影响具有异质性,相对于民主决策规范,盈余分配规范是提高合作社经营绩效的主要路径。第三,调整合作社权利安排、实现剩余控制权与索取权有效匹配,是实现合作社规范与发展兼得的关键路径,而调整决策方式、设置优先股等是实现“两权”有效匹配的可行路径。本文对重塑合作社治理机制,探寻中国合作社发展路径具有启示和借鉴意义。 展开更多
关键词 农民专业合作社 规范治理 经营绩效 剩余索取权 剩余控制权
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工业互联网平台赋能、价值共创与制造企业服务化绩效研究 被引量:2
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作者 万兴 刘静 《工业技术经济》 CSSCI 北大核心 2024年第5期15-25,共11页
实施服务化是制造企业形成差异化优势的重要手段,工业互联网平台对推进制造企业服务化具有重要意义。然而当前学术界有关工业互联网平台赋能对制造企业服务化绩效的作用机理缺乏探讨。为了揭示工业互联网平台赋能对制造企业服务化绩效... 实施服务化是制造企业形成差异化优势的重要手段,工业互联网平台对推进制造企业服务化具有重要意义。然而当前学术界有关工业互联网平台赋能对制造企业服务化绩效的作用机理缺乏探讨。为了揭示工业互联网平台赋能对制造企业服务化绩效的影响机制,本文基于服务主导逻辑,构建从工业互联网平台赋能到价值共创,再到制造企业服务化绩效的逻辑框架,采用383份来自制造企业的调查数据,通过回归分析发现:工业互联网平台赋能显著提高了制造企业服务化绩效,价值共创的两个维度即互动合作、资源整合,在工业互联网平台赋能对制造企业服务化绩效的正向影响中,发挥了部分中介作用。本文为推动工业互联网平台建设与提高制造企业服务化绩效提供了重要启示。 展开更多
关键词 服务化绩效 工业互联网平台 价值共创 互动合作 资源整合 制造企业
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罪刑相适应是刑法分则解释的铁则 被引量:1
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作者 陈洪兵 《政法论丛》 CSSCI 北大核心 2024年第3期127-138,共12页
“以刑制罪”论者主张为了所谓量刑公正而可以任意变换罪名,无视犯罪构成原理和罪刑法定原则,因而不可取。罪刑相适应作为刑法分则解释的铁则,应贯彻到刑法分则解释适用的每一个具体解释结论和处理结果当中。为实现罪刑相适应,根本无需... “以刑制罪”论者主张为了所谓量刑公正而可以任意变换罪名,无视犯罪构成原理和罪刑法定原则,因而不可取。罪刑相适应作为刑法分则解释的铁则,应贯彻到刑法分则解释适用的每一个具体解释结论和处理结果当中。为实现罪刑相适应,根本无需严格区分法条竞合和想象竞合。选择罪名和概括罪名也能并罚。为开山采石以确保安全的方式运输、储存爆炸物的,不应作为犯罪处理。危险驾驶、妨害安全驾驶、危险作业造成伤亡结果的,只能成立交通肇事罪、危险物品肇事罪、责任事故犯罪,而不能成立以危险方法危害公共安全罪。我国刑法分则规定的行为并不都是实行行为,应准确区分预备行为与实行行为。 展开更多
关键词 罪刑相适应 以刑制罪 竞合 加重犯 实行行为
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产加销一体化经营对农民专业合作社经济绩效的影响机制研究 被引量:1
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作者 祝国平 焦灵玉 龚燕玲 《上海商学院学报》 2024年第1期47-59,共13页
基于2015-2020年全国30个省(区、市)的合作社数据,采用双向固定效应模型从生产规模和节约交易成本角度分析产加销一体化经营形式对农民专业合作社经济绩效的影响,并进一步对不同地区的合作社进行异质性分析。结果表明:产加销一体化经营... 基于2015-2020年全国30个省(区、市)的合作社数据,采用双向固定效应模型从生产规模和节约交易成本角度分析产加销一体化经营形式对农民专业合作社经济绩效的影响,并进一步对不同地区的合作社进行异质性分析。结果表明:产加销一体化经营通过提高农民专业合作社市场竞争优势从而促进农民专业合作社经济绩效提升;就区域异质性而言,东部和西部地区产加销一体化对合作社经济绩效提升具有促进作用,而中部地区产加销一体化经营对农民专业合作社经济绩效提升无显著的促进作用。因此,现阶段既要重视强化合作社的产加销一体化经营,也要适度扩大合作社产加销一体化服务的广度和深度;既要追求农民专业合作社经济绩效,也要提高社员收入。 展开更多
关键词 农民专业合作社 产加销一体化 市场竞争优势 经济绩效
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正式、非正式沟通网络与企业合作绩效关系研究——基于资源获取和网络能力的作用
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作者 杨皖苏 杨善林 《河南社会科学》 CSSCI 北大核心 2024年第2期79-89,共11页
基于332家企业调研数据,研究了沟通网络、资源获取对企业合作绩效的影响,以及网络能力的调节效应。实证研究结果表明:正式沟通网络和非正式沟通网络均对企业合作绩效具有显著正向影响,知识资源和运营资源获取在沟通网络与企业合作绩效... 基于332家企业调研数据,研究了沟通网络、资源获取对企业合作绩效的影响,以及网络能力的调节效应。实证研究结果表明:正式沟通网络和非正式沟通网络均对企业合作绩效具有显著正向影响,知识资源和运营资源获取在沟通网络与企业合作绩效关系间起中介作用,知识资源获取对运营资源获取具有显著正向影响,网络能力正向调节了知识资源获取、运营资源获取与企业合作绩效之间的关系,且同时具有调节的中介作用。希望研究结果能够为企业间合作管理实践提供一定的参考价值。 展开更多
关键词 沟通网络 知识资源获取 运营资源获取 网络能力 合作绩效
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高校人才流动与基础研究创新产出
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作者 余长林 左佳 《中国软科学》 CSSCI CSCD 北大核心 2024年第8期60-70,共11页
激发创新主体活力,是知识经济时代提升国家创新体系整体效能和建设世界科技强国的重要内容。学术人才流动作为高校间人才竞争的表现形式,能否带来基础研究创新产出的提升以及相应的作用机制尚待明确。基于Web of Science数据库2008—201... 激发创新主体活力,是知识经济时代提升国家创新体系整体效能和建设世界科技强国的重要内容。学术人才流动作为高校间人才竞争的表现形式,能否带来基础研究创新产出的提升以及相应的作用机制尚待明确。基于Web of Science数据库2008—2018年中国高校发表的论文数据,使用固定效应模型和工具变量方法从学术人才流动的视角回答如何提升基础研究科研效率这一问题。研究发现,高校人才流动能够促进知识溢出,从而提升高校基础研究产出效率。机制分析表明,高校之间的人才流动通过研究人员合作论文数量的增加以及流入学者与高校之间更好的匹配来实现高校科研效率的提升。异质性分析表明,高校人才流入对基础研究创新产出的影响在社会科学领域以及人才流向东部高校中更为显著。研究结论为现阶段如何提升基础研究产出效率、释放学术人才红利提供参考。 展开更多
关键词 高校人才流动 基础研究 合作与匹配 科研绩效
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研发联盟类型对企业创新绩效的影响——基于三方合作和所有制性质的异质性分析
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作者 孙笑明 马少华 +1 位作者 张焕平 王旭嘉 《科学与管理》 2024年第4期20-27,共8页
基于交易成本理论和资源基础理论,以我国计算机和电子制造业、电气设备制造业和汽车业2008—2015年间专利数据为研究样本,分别探讨了何种三方合作的研发联盟类型和企业所有制性质更有利于提升企业创新绩效;并基于样本中专利截至2022年... 基于交易成本理论和资源基础理论,以我国计算机和电子制造业、电气设备制造业和汽车业2008—2015年间专利数据为研究样本,分别探讨了何种三方合作的研发联盟类型和企业所有制性质更有利于提升企业创新绩效;并基于样本中专利截至2022年的引证信息讨论了不同研发联盟类型下创新产出的技术影响力。实证结果显示:(1)在研发联盟组合中,子公司-子公司-子公司(Es-Es-Es)类型的研发联盟对企业创新绩效的正向影响效果最优;(2)在研发联盟组合类型中,企业所有制性质隶属于国有企业比隶属于非国有企业更能有效地提升企业创新绩效。拓展分析认为,由多样化的研发伙伴类型所构成的研发联盟其创新产出的技术影响力更大,未来更容易被再次应用。 展开更多
关键词 研发联盟 三方合作 所有制性质 企业创新绩效 异质性研究
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多用户协作NOMA系统中的最优中继选择策略
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作者 周围 黎婧怡 +1 位作者 廖先平 贺凡 《小型微型计算机系统》 CSCD 北大核心 2024年第3期726-731,共6页
在多用户协作非正交多址接入(NOMA)系统中,针对传统中继转发方式单一,中断性能较差的问题,提出了一种基于混合译码/放大转发(HDAF)协议的改进式最优中继选择策略.该策略以中继能否成功解码信号为依据,将多个中继划分为DF候选中继子集与A... 在多用户协作非正交多址接入(NOMA)系统中,针对传统中继转发方式单一,中断性能较差的问题,提出了一种基于混合译码/放大转发(HDAF)协议的改进式最优中继选择策略.该策略以中继能否成功解码信号为依据,将多个中继划分为DF候选中继子集与AF候选中继子集,并选出其中接收信噪比最高的中继参与协作.为了进一步提升系统的通信性能,本文还引入自动重传(ARQ)技术,提出了一种基于增量混合译码/放大转发(IHDAF)协议的中继选择策略.分别推导了两种策略下系统中断概率的闭式表达,并通过蒙特卡罗实验对不同策略的中断概率进行了仿真.结果表明,本文所提的两种策略相比于传统策略能够获得更低的中断概率,特别是IHDAF中继选择策略始终可以实现更佳的中断性能. 展开更多
关键词 非正交多址接入 协作通信 中继选择 中断性能
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自组织理论视角下科技合作创新绩效关键影响因素研究--基于重大科技项目的实证研究
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作者 蒋兴华 李泽龙 范心雨 《中国科技论坛》 CSSCI 北大核心 2024年第12期86-96,共11页
论文研究基于自组织理论,对引起科技合作自组织系统涨落的因素进行分析,构建起由外部环境、资金条件两个外涨落因子和组织机制、科研团队、项目负责人三个内涨落因子组成的影响因素体系。通过探究自组织系统演化机理,构建出创新系统自... 论文研究基于自组织理论,对引起科技合作自组织系统涨落的因素进行分析,构建起由外部环境、资金条件两个外涨落因子和组织机制、科研团队、项目负责人三个内涨落因子组成的影响因素体系。通过探究自组织系统演化机理,构建出创新系统自组织演化过程,凸显系统自组织程度与创新绩效的关系。以重大科技项目为例,利用线性回归和结构方程模型进行实证验证,结果发现明确的政策导向、持续的产业需求和稳定的资金支持有助于科技项目这一自组织形式保持“开放与非平衡态”的特征,同时高效的内部运行机制是自组织的根本动力,即合理的组织实施机制、能力超群的项目负责人以及配合默契的科研团队通过非线性相互作用,推动创新活动持续的发展。 展开更多
关键词 合作创新 重大科技项目 创新绩效 影响因素 自组织理论
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