对跨栏跑教学心理调控的研究

跨栏跑由于技术动作难度大，学生在学习过程中心理活动也就比较复.方研究了学生在学习前、后的心理变化规律，采用心理调控的，克服了不利的心理障碍，旨在提高跨栏跑的教学质量。     

跨栏心理障碍出现时间的分析及其对策

本文以高校体育系无跨栏经历的学生为研究对象，通过实验研究，对田径跨栏心理障碍出现的时间进行分析。研究结果曼示：跨栏心理障碍人数的变化具有三高峰形态；教学时间的长短与心理障碍的人数具有极大的相关性；跨栏心理障碍存在性别差异。并针对教学实践，对田径跨栏心理障碍的控制提出合理的解决方案。     

跨栏跑心理障碍及其克服

本文从跨栏跑的三个技术部分按其教学顺序，分别探讨了各个教学阶段的心理障碍形成的原因，从学习动机、学习兴趣、运动表象的形成等方面探讨，按认知的心理规律，找出了跨栏跑教学训练中克服心理障碍，提高教学训练效果行之有效的一些方法和手段。     

如何克服跨栏过程中的心理障碍

如今,人们越来越重视健康,参与体育运动的人也越来越多。体育也越来越受到欢迎,跨栏跑当然也不另外。随着2004年雅典奥运会上中国选手刘翔的夺冠,跨栏跑已经成为众所周知的体育项目,也越来越受到社会、学校的重视,中学体育课都会开设这一科目。现在的中学生都是90年代左右出生的,特点是娇生惯养,遇到障碍容易退缩,害怕。因此,如何顺利的完成跨栏跑便成为很重要的内容,特别是克服跨栏跑过程中的心理障碍。本论文依据跨栏跑的特点——一定的距离内跨越多个具有一定高度的障碍跑。结合实习教学中学生出现的种种心理障碍,从心理、生理上分析为什么出现心理障碍、为什么会怕栏。讨论如何克服跨栏跑中的心理障碍,为跨栏跑教学训练提供新的方法和思路。     

高师体育专业中学生心理障碍的产生与排除

本文论述运动心理学在跨栏跑教学中的应用,建立栏感,包括动作感、距离感和节奏感,从跨栏跑教学中学生心理障碍的具体表现分析入手,探讨学生心理障碍的产生因素以及所采取的具体措施,为跨栏跑教学提供新的思路.     

浅谈影响跨栏跑教学的心理障碍及调节

本文针对学生在跨栏跑学习中产生的心理障碍，探究其产生的原因，提出对学生的认识与行为加以引导和调节的措施．意在减少在跨栏教学中的受伤事故，达到消除心理障碍，激发学生学习积极性，提高教学质量的目的．     

心理训练对中学跨栏跑教学训练的影响

本文运用心理技能训练的一般原理和方法，并结合跨栏运动的特点，探讨心理技能训练在跨栏跑教学训练中的运用。并对跨栏教学训练中出现的各种心理问题进行阐述，通过相应的心理训练对各种心理障碍进行克服，从而使学生更快的掌握跨栏跑技术，使教学训练过程更顺利的进行，使学生的心理素质得到加强。     

跨栏教学中的心理障碍及教学对策

学生在掌握和学习各项技术动作时,必然受条件反射建立规律和条件制约。建立每件反射的首要条件是,大脑必须处于良性兴奋状态。也就是说,动作技能形成的过程必须处于良好的心理状态。由于跨栏跑有栏架及一定的栏间距等特定条件的限制,在快跑跨过每一个栏架时,栏问跑与跨栏动作结合必须协调,因而学生在学习的时候,心理活动较复杂。有很多素质较好的学生,由于缺乏应有的心理素质影响了跨栏跑技术的掌握。在跨栏技术教学中,教师要针对学生因心理障碍而影响动作技能形成的各种因素,有的放失的克服,无疑对提高跨栏跑技术教学效果有现实意义。     

高校跨栏跑教学中学生心理障碍的成因及解决对策

高校体育课中的跨栏跑教学中学生存在心理障碍，影响教学效果，学生心理障碍主要受自身技术特点、练习环境、教师教法、情景性恐惧、自发性恐惧的影响。克服心理障碍应从树立学生正确的学习动机和提高教师教学水平入手。     

跨栏跑的心理障碍及其克服

跨栏跑要求运动员有良好的身体素质,尤其要求有很高的心理素质。本文针对跨栏运动员的心理现象,试对100米和110米栏教学训练中的主要心理障碍及其克服方法做初步探讨。 1 跨栏步的心理障碍及其克服跨栏步的技术要求应该是“三快一准”,即起跨落地快,攻摆上栏快,下栏着地快,起跨点和落地要准。这个阶段学生主要心理障碍表现为:①心惧胆怯,怕栏高,怕碰栏,怕起跨点远。一接触到栏架就犹豫不决,致使跨栏步技术变形;②情绪不稳,步伐紊乱,造成跨栏     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…     

An Index mechanism for multi-scale view in spatial databases

There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce time of both retrieving object and displaying them. The former can be achieved with the aid of spatial index such as R-tree, the latter require to simplify the objects. Simplification means that objects are shown with sufficient but not with unnecessary detail which depend on the scale of browse. So the major problem is how to retrieve data at different detail level efficiently. This paper introduces the implementation of a multi-scale index in the spatial database SISP (Spatial Information Shared Platform) which is generalized from R-tree. The difference between the generalization and the R-tree lies on two facets: One is that every node and geometric object in the generalization is assigned with a importance value which denote the importance of them, and every vertex in the objects are assigned with a importance value,too. The importance value can be use to decide which data should be retrieve from disk in a query. The other difference is that geometric objects in the generalization are divided into one or more sub-blocks, and vertexes are total ordered by their importance value. With the help of the generalized R-tree, one can easily retrieve data at different detail levels.Some experiments are performed on real-life data to evaluate the performance of solutions that separately use normal spatial index and multi-scale spatial index. The results show that the solution using multi-scale index in SISP is satisfying.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that     

On the Thermodynamic Limit for Responses to Static Electromagnetic Fields

For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the