浅析盐业诉讼中的股权纠纷

在近现代四川盐业契约珍贵的诉讼档案中，反映出以盐业生产经营过程中各方约定俗成的厂规习惯来解决股权纠纷的特点。在诉讼程序的各个阶段，诉讼参加人自觉依据习惯法来谋求达成解决纠纷的合意，从而达到最大限度节约司法资源，降低诉讼成本的目的。分析盐业诉讼中的股权纠纷特点，借鉴我国传统纠纷解决方式中的有益成分，对于推动我国民事诉讼制度的转型和发展有着积极的意义。     

实践教学对学生思想品德素质的培养

思想政治素质是素质教育的灵魂。本文从高等职业教育最突出特征之一的实践教学为切入点，探讨实践教学对大学生思想品德素质的培养。     

谈降维卡诺图化简逻辑函数的方法

讨论了降维卡诺图中降维变量的选择方法，给出了降维卡诺图的填写及化简的具体步骤和方法，并通过实例分析验证了该方法的实用性，解决了多变量逻辑函数化简繁难的部分问题。     

π(x;33)=10有解的必要条件

当x >11时 ,π(x ;33) =10是否有解 ,这是素数分布中一个至今仍未解决的问题。本文给出了π(x ;33)=10有解的一些必要条件     

Drucker-Prager elasto-plastic constitutive model for methane hydrate-bearing sediment

A constitutive model for methane hydrate-bearing sediment(MHBS)is essential for the analysis of mechanical response of MHBS to the change of hydrate saturation caused by gas extraction. A new elasto-plastic constitutive model is built in order to simulate the mechanical behavior of MHBS in this paper. This model represents more significant mechanical properties of MHBS such as bonding, higher stiffness, softening and stress-strain nonlinear relationship. The bonding behavior can be described by use of a parameter related to mechanical hydrate saturation. Higher stiffness can be modeled by the introduction of hydrate saturation into traditional expression of soil stiffness. Softening can be controlled by a function describing the relationship between cohesion and bonding structure factor. Dilatancy can be estimated by establishing the relationship between the lateral strain and axial strain. Meanwhile, the hypothesis of isotropic expanding is applied to the calculation of the volumetric strain. The stress-strain curves under different hydrate saturation conditions predicted by the proposed model are in good agreement with the test data. All the coefficients can be easily obtained by the triaxial test of MHBS.     

Applying the Rule Space Model to Develop a Learning Progression for Thermochemistry

We used the Rule Space Model, a cognitive diagnostic model, to measure the learning progression for thermochemistry for senior high school students. We extracted five attributes and proposed their hierarchical relationships to model the construct of thermochemistry at four levels using a hypothesized learning progression. For this study, we developed 24 test items addressing the attributes of exothermic and endothermic reactions, chemical bonds and heat quantity change, reaction heat and enthalpy, thermochemical equations, and Hess’s law. The test was administered to a sample base of 694 senior high school students taught in 3 schools across 2 cities. Results based on the Rule Space Model analysis indicated that (1) the test items developed by the Rule Space Model were of high psychometric quality for good analysis of difficulties, discriminations, reliabilities, and validities; (2) the Rule Space Model analysis classified the students into seven different attribute mastery patterns; and (3) the initial hypothesized learning progression was modified by the attribute mastery patterns and the learning paths to be more precise and detailed.     

The role that mathematics plays in college- and career-readiness: evidence from PISA

Many studies have found a strong relationship between the mathematics students study in school and their performance on an academic or school mathematics assessment but not on an assessment of mathematics literacy (ML). With many countries, like the USA, placing emphasis on finishing secondary education being mathematically literate and prepared for college or career, this raises the question about the relationship between the mathematics studied in school and any ML students may have. The Programme for International Student Assessment (PISA) ML assessment is embedded in real-world contexts that provide an important window on how ready students are to tackle the situations and problems that await them whether they intend to pursue further education beyond high school or intend to go directly into the labour force. In this paper, we draw upon the PISA 2012 data to investigate the extent to which the cumulative exposure to rigorous mathematics content, such as that embedded in college- and career-ready standards, is associated with ML as assessed in PISA. Results reveal that both exposure to rigorous school mathematics and experiencing the instruction of this mathematics through real-world applications are significantly related to all the real-world contextualized PISA ML scores.     

论审美直觉在爱因斯坦科学创造活动中的作用

作为20世纪的风云人物,爱因斯坦以他在物理学领域的非凡创造而为世人所瞩目。关于他的创新奥秘,多年来人们从众多的角度,进行过广泛的分析。文章试图从审美直觉这一独特视角,就创新动力、创新方向和创新检验三个层面,全面剖析其在爱因斯坦理论创造中的作用。     

Banach空间混合型积分-微分方程初值问题的唯一解

在不使用任何紧型条件的假设下 ,得到Banach空间中一类非线性混合型积分 -微分方程初值问题的唯一解、解的迭代逼近序列以及误差估计     

改革教育见习的思考与实践

通过对传统的教育见习诸多弊端的调查研究，提出改革教育见习的新方案。将教育见习提到学科教学论理论课之前开展，为学习教学论提供感性认识，提高学科教学论课的教学效果；明确教育见习的目的要求，且见习任务作业化，管理程序化，从而提高师范生观察的深广度、思考的深刻性；提高师范生的教学素质，增强其从教意识和教师使命感。