基于Probit模型的大学生焦虑心理离散选择分析

本文通过建立Probit离散选择模型,采用问卷调查的方式获取第一手资料,对当代大学生焦虑心理的影响因素及其边际影响做了实证分析和定量研究,得出结论如下:社会环境与校园环境因素对当代大学生的焦虑心理影响效果并不明显。在所有纳入研究范围的因素中,个人特征因素、人际关系因素、恋爱心理因素、就业因素和家庭环境因素对大学生焦虑心理均有较为显著的影响。具体来看,性格内向、脾气急躁、高年级、非独生子女、人际交往中缺乏交往技巧、家庭经济状况较差、家长对其期望很高以及认为在就业中存在不公平现象的学生的焦虑心理较为明显。另外,当恋爱与学习及其他事物发生冲突、所学专业与兴趣发生冲突、有学习压力及考试造成的焦虑时,其心理焦虑程度明显上升。     

赏识教育理论在高职院校数学教学中的应用

高职数学虽然不是职业院校的专业课程,但却是高职院校非常重要的专业基础课和必修课,能否学好高职数学直接影响学生相关专业课程的学习,与学生的终生教育密不可分.赏识教育强调对学生以欣赏为主,主动不断发现学生的优点和长处,并对这些优点和长处进行针对性表扬和鼓励,使学生处于较好的学习认知状态,产生较好的学习动机和学习欲望,取得较好的学习效果.将赏识教育运用于高职数学教学的实践中,不仅可以改变高职学生在数学学习上的自卑感,而且在学生的主观幸福感、学习动机和学业成绩等方面具有十分重要的作用,对于提升高职数学的教学效果具有非常积极的意义.     

优化和发展学生数学认知结构的认识与实践

所谓认知结构，就是人们头脑中的知识结构．主要包括知识结构的稳定性、清晰性、可辨别性和可利用性等变量因素．这些变量直接参与新旧概念相互作用的全过程，影响有意义学习的获得与保持．因此深入分析它们在认知过程中的角色和所起的作用，这对把握学生数学学习的认知心...     

自主发展理念下学科育人途径的探索——以非智力因素对初中数学学习的影响为例

非智力因素是一个新的概念,简单来说就是指智力因素以外的心理因素.而我国的心理学家认为,非智力因素是指对学习行为和学习活动有较大影响的心理因素,如兴趣、情感、性格、品质等.实际上非智力因素对学习的影响是比较大的.非智力因素对培养学生的自主学习意识及提升学生的学习积极性和效率有重要作用,还能有效地实现学科育人的教育目标.本文主要分析非智力因素对初中数学学习的影响.     

本科生高等数学成绩影响因素调查 ——基于logistic回归模型的分析

高等数学是高校课程体系的一门重要学科,是提升高校人才培养质量的关键.采用问卷调查法,通过构建logistic回归模型,从"教""学""管"三个角度分析了学习基础、学习动机、学习方式、学习兴趣等26个因素对本科生高等数学成绩的影响机理.研究结果表明:个人因素在教学因素、管理因素、个人因素三者中影响最大,个人因素中的学习方...     

关注差异 提高效率——谈差异教学在珠心算教学中的运用

在珠心算教学中实施差异教学能有效激发学生的学习兴趣,提高课堂效率。文章主要从三个方面加以阐述:一是个性分类,内外互补,包括分组的方法和教学的策略等;二是星级练习,扬长促潜;三是分层评价,完善机制,包括评价重点、评价方法等。     

基于解释结构模型的学生学习行为投入评价因素研究

学生学习行为投入是教学研究中的热点问题,对改善学习绩效,提升教育质量具有重要意义.通过文献梳理和专家访谈,识别出学生学习行为投入评价影响因素的15个变量,并确定了各因素变量之间的二元关系.在此基础上,采用解释结构模型方法对这些影响因素进行层级建模,得到学生学习行为投入评价影响因素解释结构模型.研究发现:学术拓展、任务独立、寻求挑战、交流讨论、协作学习、克服困难是影响学习行为投入的直接因素,更多的投入、自我检测、积极响应、出勤和参与决策与管理是根本因素,坚持、专注、自我调节和任务管理作为间接因素发挥作用.最后对研究结果进行相关分析,进而为促进学生学习行为投入提供一定的参考.     

关于认知风格与数学解题的调查研究

1　问题的提出认知风格 ,也称认知方式 ,一般指个体在加工信息 (包括接受、贮存、转换、提取和使用信息 )时习惯采用的方式 .认知风格有场独立型与场依存型、冲动型与思考型、求同型与求异型等类型 .认知风格与个体的个性、经历、受教育过程等有关 ,对个体的学业成绩有一定影响 .这已为许多学习心理学的实验和理论所证实 .然而 ,在数学解题过程中是否存在明显不同的认知风格 ?认知风格的不同对解题有何影响 ?认识认知风格的不同在教学中有何实际意义 ?目前尚未见到太多报道 .本研究的目的就是对以上三个问题进行调查和探究 .2　研究的设计本…     

信息技术需要

本文这里所要讨论的“信息技术需求”指的是企业内部信息需求，具体内容包括：迷动资产和流动负债及运营效率等“流动性”基础性信息；新的成本核算和预算管理信息、经济增加值（EVA）、行业标杆及自我历史标杠等成果性或目标性基础信息；企业组织奇缺资源（包括资本和有才能的员工）配置的决策辅助性基础信息。     

人教版《几何证明选讲》第一讲学习中的问题解析

《几何证明选讲》是高中数学新课标选修教材,人教版编写的内容体系,符合高中学生的年龄特征和认知规律,较适合学生自主学习和课前预习,某一教学内容,学生通过提前阅读,自我探索知识,可以对所学知识有初步的理性认识,对提高学习兴趣、积极主动学习产生重要影响,为了更便于学生提前预习,     

Qualitative Analysis of Bifurcating Solutions in the Lengyel-Epstein Model

One of the most fundamental problems in theoretical biology is to explain the mechanisms by which patterns and forms are created in the＇living world. In his seminal paper ＂The Chemical Basis of Morphogenesis＂, Turing showed that a system of coupled reaction-diffusion equations can be used to describe patterns and forms in biological systems. However, the first experimental evidence to the Turing patterns was observed by De Kepper and her associates（1990） on the CIMA reaction in an open unstirred reactor, almost 40 years after Turing＇s prediction. Lengyel and Epstein characterized this famous experiment using a system of reaction-diffusion equations. The Lengyel-Epstein model is in the form as follows     

A REPRESENTATION FORMULA RELATED TO SCHR(O)DINGER OPERATORS

Schr(o)dinger operator is a central subject in the mathematical study of quantum mechanics.Consider the Schrodinger operator H = -△ V on R, where △ = d2/dx2 and the potential function V is real valued. In Fourier analysis, it is well-known that a square integrable function admits an expansion with exponentials as eigenfunctions of -△. A natural conjecture is that an L2 function admits a similar expansion in terms of "eigenfunctions" of H, a perturbation of the Laplacian (see [7], Ch. Ⅺ and the notes), under certain condition on V.     

On a class of self-similar processes with stationary increments in higher order Wiener chaoses

We study a class of self-similar processes with stationary increments belonging to higher order Wiener chaoses which are similar to Hermite processes. We obtain an almost sure wavelet-like expansion of these processes. This allows us to compute the pointwise and local Hölder regularity of sample paths and to analyse their behaviour at infinity. We also provide some results on the Hausdorff dimension of the range and graphs of multidimensional anisotropic self-similar processes with stationary increments defined by multiple Wiener–Itô integrals.     

(0,1 ;0)-INTERPOLATION ON INFINITE INTERVAL (-∞, +∞)

In this paper, we study the explicit representation and convergence of (0, 1; 0)-interpolation on infinite interval, which means to determine a polynomial of degree ≤ 3n - 2 when the function values are prescribed at two set of points namely the zeros of Hn(x) and H′n(x) and the first derivatives at the zeros of H′n(x).     

On a class of Riemann surfaces

It is considered the class of Riemann surfaces with dimT1 = 0, where T1 is a subclass of exact harmonic forms which is one of the factors in the orthogonal decomposition of the spaceΩH of harmonic forms of the surface, namely The surfaces in the class OHD and the class of planar surfaces satisfy dimT1 = 0. A.Pfluger posed the question whether there might exist other surfaces outside those two classes. Here it is shown that in the case of finite genus g, we should look for a surface S with dimT1 = 0 among the surfaces of the form Sg\K , where Sg is a closed surface of genus g and K a compact set of positive harmonic measure with perfect components and very irregular boundary.     

CONTENTS OF VOLUME 30

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Instructions for contributions

正Applied Mathematics-A Journal of Chinese Universities,Series B(Appl.Math.J.Chinese Univ.,Ser.B)is a comprehensive applied mathematics journal jointly sponsored by Zhejiang University,China Society for Industrial and Applied Mathematics,and Springer-Verlag.It is a quarterly journal with     

Journal of Mathematical Research with Applications Guide for Authors

正Journal overview:Journal of Mathematical Research with Applications(JMRA),formerly Journal of Mathematical Research and Exposition(JMRE)created in 1981,one of the transactions of China Society for Industrial and Applied Mathematics,is a home for original research papers of the highest quality in all areas of mathematics with applications.The target audience comprises:pure and applied mathematicians,graduate students in broad fields of sciences and technology,scientists and engineers interested in mathematics.     

Staircase transportation problems with superadditive rewards and cumulative capacities

A cumulative-capacitated transportation problem is studied. The supply nodes and demand nodes are each chains. Shipments from a supply node to a demand node are possible only if the pair lies in a sublattice, or equivalently, in a staircase disjoint union of rectangles, of the product of the two chains. There are (lattice) superadditive upper bounds on the cumulative flows in all leading subrectangles of each rectangle. It is shown that there is a greatest cumulative flow formed by the natural generalization of the South-West Corner Rule that respects cumulative-flow capacities; it has maximum reward when the rewards are (lattice) superadditive; it is integer if the supplies, demands and capacities are integer; and it can be calculated myopically in linear time. The result is specialized to earlier work of Hoeffding (1940), Fréchet (1951), Lorentz (1953), Hoffman (1963) and Barnes and Hoffman (1985). Applications are given to extreme constrained bivariate distributions, optimal distribution with limited one-way product substitution and, generalizing results of Derman and Klein (1958), optimal sales with age-dependent rewards and capacities.To our friend, Philip Wolfe, with admiration and affection, on the occasion of his 65th birthday.Research was supported respectively by the IBM T.J. Watson and IBM Almaden Research Centers and is a minor revision of the IBM Research Report [6].