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医学领域学者学术论文影响力评价方法 被引量:5
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作者 郝晓梅 李日 +2 位作者 高歌 田冬梅 伦志军 《中华医学图书情报杂志》 CAS 2019年第9期46-50,共5页
通过检索中国知网(CNKI)开发的"医院科研产出统计分析与评价数据库"中的医学领域学者学术论文,建立吉林省医学领域学者学术论文数据库,从学者的论文产出、论文引用情况及论文的传播影响力3个层面构建医学领域学者学术影响力... 通过检索中国知网(CNKI)开发的"医院科研产出统计分析与评价数据库"中的医学领域学者学术论文,建立吉林省医学领域学者学术论文数据库,从学者的论文产出、论文引用情况及论文的传播影响力3个层面构建医学领域学者学术影响力计算模型,利用Pearson相关分析对各计量指标进行相关分析,评价计算模型对各计量指标的拟合效果,并采用基于最优尺度变换的多重对应分析方法验证模型的可靠性。结果发现除了第一作者发文量指标以外,其余各计量指标与学者的评分总和具有较强的相关性,并且相关系数具有统计学意义(P<0.05),说明构建的模型拟合度较好。基于最优尺度变换的多重对应分析结果显示,职称等级和所在医院等级越高的学者学术影响力评分等级越靠前,进一步验证了模型的可靠性。 展开更多
关键词 学术影响力 评价 医学领域学者 医学领域学者学术影响力计算模型
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Educational Practices in the Model of Music Learning Theory of E. Edwin Gordon: An Observational Research 被引量:1
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作者 Antonella Nuzzaci 《Journal of Literature and Art Studies》 2013年第5期263-277,共15页
This paper analyzes the supervision activity, to which educators and teachers enrolled with AIGAM (Gordon Italian Association for the Musical Learning) are subject to every year and intends to verify the application... This paper analyzes the supervision activity, to which educators and teachers enrolled with AIGAM (Gordon Italian Association for the Musical Learning) are subject to every year and intends to verify the application of those principles expressed in the learning model of the MLT (Music Learning Theory) developed by educational psychologist E. Edwin Gordon (1989, 1999, 2000, 2001, 2007) and promoted internationally by various institutions and organizations specifically accredited. It describes the influence of the videotaped supervision on the process, functions of monitoring, and evaluation of educational practices, starting with an empirical model that has guided the interventions in a study of supervision on training aimed at consolidating and developing professional skills in music education in early childhood. This paper sought to understand: the kind of practices, interactions, communications developing during an educational actions, the existence of a consistent relationship between the principles expressed in the MLT and their application, the type and benefits of supervision performed by of video recording on stakeholders in terms of change in professional behavior, and finally whether the active supervision could be comparable with other kinds of approaches. 展开更多
关键词 music education MLT (Music Learning Theory) empirical research in music education observational tool
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Application Research of the Integrative Mathematics Model in Household Consumption Behavior
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作者 REN Zhi-Gang 《Journal of Modern Accounting and Auditing》 2007年第2期15-19,25,共6页
In this paper, two hypotheses are integrated into an independent model to explain consumer behavior. The model is empirically tested using data from China Family Cost Survey of 2001. The results indicate that China ho... In this paper, two hypotheses are integrated into an independent model to explain consumer behavior. The model is empirically tested using data from China Family Cost Survey of 2001. The results indicate that China household consumption behavior is commonly explained by two hypotheses as an independent model, reverse to previously treating them as commutative exclusive hypotheses. 展开更多
关键词 consumer behavior income hypotheses integrative model
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知识困境及其解决方式:以环境治理为例的博弈模型构建 被引量:13
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作者 杨立华 《中国行政管理》 CSSCI 北大核心 2010年第10期112-116,共5页
由于知识差异性、不对称性、沟通不完整性、稀缺性及集体行动障碍等导致的共同知识短缺是知识困境的最重要表现形式。以环境治理中二人草原管理的简化情景为例,本文构建了描述知识困境的简易博弈模型,发展了解决困境的三种经典博弈模型... 由于知识差异性、不对称性、沟通不完整性、稀缺性及集体行动障碍等导致的共同知识短缺是知识困境的最重要表现形式。以环境治理中二人草原管理的简化情景为例,本文构建了描述知识困境的简易博弈模型,发展了解决困境的三种经典博弈模型:强制模型、自学模型和学者模型。研究还指出决策者可依据从适用条件、自愿程度、个体收益、共同知识稳定性及纠错能力等方面对三种解决模型的比较分析和以个体收益组合和共同知识收益为两个基本变量的成本收益分析来最终选定特定条件下解决具体知识困境的合适模型。 展开更多
关键词 环境治理 博弈 强制模型 自学模型 学者模型
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Diagnostic model of saliva protein finger print analysis of patients with gastric cancer 被引量:9
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作者 Zheng-Zhi Wu Ji-Guo Wang Xiao-Li Zhang 《World Journal of Gastroenterology》 SCIE CAS CSCD 2009年第7期865-870,共6页
AIM:To explore the method for early diagnosis of gastric cancer by screening the expression spectrum of saliva protein in gastric cancer patients using mass spectrometry for proteomics.METHODS:Proportional peptide mas... AIM:To explore the method for early diagnosis of gastric cancer by screening the expression spectrum of saliva protein in gastric cancer patients using mass spectrometry for proteomics.METHODS:Proportional peptide mass fingerprints were obtained by analysis based on proteomics matrix-assisted laser desorption ionization time-of-flight/mass spectrometry.A diagnosis model was established using weak cation exchange magnetic beads to test saliva specimens from gastric cancer patients and healthy subjects.RESULTS:Significant differences were observed in the mass to charge ratio(m/z) peaks of four proteins(1472.78 Da,2936.49 Da,6556.81 Da and 7081.17 Da) between gastric cancer patients and healthy subjects.CONCLUSION:The finger print mass spectrum of saliva protein in patients with gastric cancer can be established using gastric cancer proteomics.A diagnostic model for distinguishing protein expression mass spectra of gastric cancer from non-gastric-cancer saliva can be established according to the different expression of proteins 1472.78 Da,2936.49 Da,6556.81 Da and 7081.17 Da.The method for early diagnosis of gastric cancer is of certain value for screening special biological markers. 展开更多
关键词 SALIVA Protein finger print model Gastriccancer Matrix-assisted laser desorption ionization-time-of-flight/mass spectrometry Weak cationexchange Magnetic bead PROTEOMICS
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Aggregation in Intersection Region for Distributed Heterogeneous Mobile Sensor Networks 被引量:1
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作者 ZHENG Zhi PENG Zhihong CHEN Jie 《Journal of Systems Science & Complexity》 SCIE EI CSCD 2017年第4期932-949,共18页
This paper presents two aggregation strategies in convex intersection region for the distributed mobile sensor network(MSN) with heterogeneous dynamics. First, the authors analyze individual local perception model and... This paper presents two aggregation strategies in convex intersection region for the distributed mobile sensor network(MSN) with heterogeneous dynamics. First, the authors analyze individual local perception model and dynamics model, set the intersection of all the local perceptions as the region of interest(ROI). The MSN consists of sensors with first-order dynamics and second-order dynamics. Then, the authors design a control strategy to ensure that individuals aggregate at a point in the ROI relying on their local perceptions and the locations of neighbors within their communication scope. The authors describe this situation of aggregation as rendezvous. In addition, the authors introduce artificial potential field to make sensors deploy dispersedly in a bounded range near the ROI,which the authors call dispersed deployment. Finally, the authors prove the stability of the proposed strategies and validate the theoretical results by simulations. This research is applied for the cooperative deployment and data collection of mobile platforms with different dynamics under the condition of inaccurate perception. 展开更多
关键词 AGGREGATION convex intersection heterogeneous dynamics mobile sensor.
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Alternative food and external source of infection stabilize predator-prey oscillations -- A conclusion drawn from an eco-epidemiological model 被引量:2
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作者 Krishna Pada Das 《International Journal of Biomathematics》 2015年第3期83-107,共25页
Das et al. [Effect of disease-selective predation on prey infected by contact and external sources, Biosystems 95(3) (2009) 188-199] proposed an eco-epidemiological model where the prey species is infected through... Das et al. [Effect of disease-selective predation on prey infected by contact and external sources, Biosystems 95(3) (2009) 188-199] proposed an eco-epidemiological model where the prey species is infected through the external source of infection and contact of the species. In this present study we have modified their model by assuming that the predator consumes both the susceptible as well as the infected prey following the modified Holling type-Ⅱ functional response. Our main focusing points of this study are the role of infection rate (both internal and external), alternative food, and half-saturation constant in the predator prey dynamics with disease in the prey population. We have shown the local stability of the boundary as well as the interior equilibrium point under certain conditions. We have Mso worked out the permanence of the system. Our simulation results show that the system enters into limit cycle oscillations from stable position for higher values of the contact rate. But it is also shown that the external infection rate, enrichment of the alternative food of the predator population and the half-saturation constant can prevent limit cycle oscillations and stabilize the system. Thus external dis- ease propagation, enrichment of the alternative food resource, and the half-saturation constant are the key factors for preventing the oscillatory behavior of the species. 展开更多
关键词 External source of infection alternative food modified Holling type-Ⅱ functional response BIFURCATION permanence.
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Component ACD Model and Its Application in Studying the Price-Related Feedback Effect in Investor Trading Behaviors in Chinese Stock Market
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作者 HUANG Zhiyuan HAN Ai WANG Shouyang 《Journal of Systems Science & Complexity》 SCIE EI CSCD 2018年第3期677-695,共19页
This paper explores the investors' feedback to the price change by modelling the price- related dynamics of trading intensity. A component decomposition duration modeling approach, called the component autoregressive... This paper explores the investors' feedback to the price change by modelling the price- related dynamics of trading intensity. A component decomposition duration modeling approach, called the component autoregressive conditional duration (CACD) model, is proposed to capture the variation of trading intensity across time intervals between price change events. Based on the CACD model, an empirical analysis is carried out on the Chinese stock market that covers different market statuses. The empirical results suggest that the CACD model can capture the price-related dynamics of trading intensity, which supports the existence of the feedback effect and is robust across different market statuses. The authors also study how the investors react to the price change by examining the driven factors of the price-related dynamics of trading intensity. The authors find that the trading can be triggered by the fast rise in the price level and the high trading volume. Besides, investors are more sensitive to the price change direction in the sideways market than in the upward or downward markets. 展开更多
关键词 Component ACD model feedback effect investor behavior market status trading inten- sity.
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SOME INVERSE OPTIMIZATION PROBLEMS ON NETWORK
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作者 XU Cheng XU Xiaoming 《Journal of Systems Science & Complexity》 SCIE EI CSCD 2013年第3期350-364,共15页
In this paper,the authors consider some inverse problems on network,such as the inverse transport problems with gains(IGTP) and the inverse linear fractional minimum cost flow problem(IFFP).Firstly,the authors give th... In this paper,the authors consider some inverse problems on network,such as the inverse transport problems with gains(IGTP) and the inverse linear fractional minimum cost flow problem(IFFP).Firstly,the authors give the mathematics model of(IGTP) and an efficient method of solving it under l_1 norm;Secondly,taking advantage of the optimality conditions,the authors consider the(IFFP) and give a simple method of solving it.Finally,an numerical example test is also developed. 展开更多
关键词 Dual problem fractional minimum cost flow problem gain network inverse problem.
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A Few Integrable Dynamical Systems,Recurrence Operators,Expanding Integrable Models and Hamiltonian Structures by the r-Matrix Method 被引量:1
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作者 张玉峰 Iqbal Muhammad 岳超 《Communications in Theoretical Physics》 SCIE CAS CSCD 2017年第10期463-470,共8页
We extend two known dynamical systems obtained by Blaszak, et al. via choosing Casimir functions and utilizing Novikov-Lax equation so that a series of novel dynamical systems including generalized Burgers dynamical s... We extend two known dynamical systems obtained by Blaszak, et al. via choosing Casimir functions and utilizing Novikov-Lax equation so that a series of novel dynamical systems including generalized Burgers dynamical system, heat equation, and so on, are followed to be generated. Then we expand some differential operators presented in the paper to deduce two types of expanding dynamical models. By taking the generalized Burgers dynamical system as an example, we deform its expanding model to get a half-expanding system, whose recurrence operator is derived from Lax representation, and its Hamiltonian structure is also obtained by adopting a new way. Finally, we expand the generalized Burgers dynamical system to the (29-1)-dimensional case whose Hamiltonian structure is derived by Poisson tensor and gradient of the Casimir function. Besides, a kind of (29-1)-dimensional expanding dynamical model of the (29-1)-dimensionaJ dynamical system is generated as well. 展开更多
关键词 R-MATRIX poisson tensor expanding dynamical system
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The Abbreviated Symbol of Living Forms, Unit and Growth
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作者 Humberto Ortega-Villasenor Genaro Quinones Trujillo 《Fudan Journal of the Humanities and Social Sciences》 2016年第3期465-491,共27页
This essay is written in the form of a mosaic. It intersperses simple language, primary and secondary quotes within text, footnotes and epigraphs from classical thinkers and cutting-edge researchers. It invites reader... This essay is written in the form of a mosaic. It intersperses simple language, primary and secondary quotes within text, footnotes and epigraphs from classical thinkers and cutting-edge researchers. It invites readers, be they casual or experienced, to a certain play of irony and fantasy in their reflection on the main thrust of the argument. The essay is divided into two parts. The first seeks to introduce the readers to some of the main concerns of frontier science and the Philosophy of Science at the beginning of this millennium: the Universe Models proposed by scientists from fields related to Physics and Mathematics in their eagerness to explain more and more discoveries and to lay out a solid new scientific paradigm. We are convinced that the leap between sidelines and insides--when confronting straightforward style with systematic contrast--does not lessen the rigor of research, and serves to lighten the density of the topic by projecting nuances and resonance onto the logos and its concatenation. It may also serve to vivify field and figure, in order to recreate the fertile delight that generally comes from a good reading of deep intertext.In the second part, we attempt to subtly demonstrate a fortunate discovery: the validity and solidity of the laws of Nature, upheld on the basis of their abstract mathematical expression (the Number Phi (φ), the goldennumber or golden section), which despite having faded into oblivion, buried under centuries of disuse in the fields of Aesthetics and Art, has proven to be useful as a critical instrument and a template for concrete solutions that we wish to share. We believe that this Model may serve not only to answer some of the scientific issues that we have referred to, but to redirect the discussion itself, and break the logjam of many frontier forums that place conditions on the application of the Models pro- duced over the last century. Having glimpsed those realms where analysis and common sense come together for addressing one of the most salient issues of our time, we chose to close the essay by offering practical, concrete findings on the topic of Models, which not only specialists in the field may find useful, but also any reader, especially educators, who are charged with sharing these findings with the present and future generations. 展开更多
关键词 Universe models Scientific paradigm Mathematical expression Number Phi
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