运用归因理论激发学生生物课程学习动机

良好的课程学习动机能提高学生课程学习的主动性,从而提高课程学习效率。引导学生积极归因、激发并维持课程学习动机是课程实施的必然要求。积极的归因有助于激发学生课程学习动机,而教师对学生的成败归因具有重要影响。从五个方面讨论了在生物课程中引导学生正确归因的策略。     

基于CBI教学理念的生物信息学专业英语教学模式设计

生物信息学专业英语课程,是一门新兴交叉学科学习的基础课程。本文对哈尔滨医科大学2008级生物信息学专业英语课程设计并实施了CBI教学模式。通过对学生专业英语课程学习效果的分析,发现CBI教学理念在该课程中不仅可行,并且有助于提高本课程教学效率,发展并提高学生专业英语的应用能力。     

基于模块化的《井巷工程》课程教学内容重构初探

本文针对《井巷工程》课程涉及的空间概念多,且与《煤矿开采方法》课程交叉内容多以及学生对该课程的知识点不易理解和掌握等问题,提出在实施模块化教学中重构课程教学内容。教学实践表明:基于模块化的《井巷工程》课程教学内容重构后的教学效果较之前有较大提高,课程重构后提高了学生自主学习的积极性,同时也提高了教师的教学水平。     

在专业选修课中开展双语教学的重要性

本文论述了在专业选修课程开展双语教学的重要性。得出结论：在专业选修课程开展双语教学不仅对完善课程教学内容、增进学生对课程内容的理解、激发学生对课程的兴趣,而且对提高学生自身主观能动性、提高教师自身素质以及提高学生的能力都有着重要作用。教师和学生都要善于利用双语教学完善和提高其自身素质。     

浅析大学计算机基础课程数字化教学的研究与实践

随着信息技术的不断发展,大学对于计算机基础课程的教学也越来越重视,计算机基础课程的教学模式和方法也在不断发展和提高,数字化教学在大学计算机基础课程教学中的地位也在不断提高,作用在不断加大。本文通过对计算机基础课程的数字化教学的研究和实践进行分析,由此对大学计算机基础课程的发展方向提供一些意见和思路。     

《环境化学》课程建设实践

在分析《环境化学》课程特点及现状的基础上,首先,对授课内容进行优化调整,并将环保事件、案例与视频和课程理论相结合,不仅有助于加深学生对课程理论知识的理解,提高解决实际环境问题的能力,同时以贯穿整个课程环境案例教育为契机,提高学生的人文素质,激发学生的环境保护意识并提高社会责任感。其次,对课程配套的实验课程进行教学模式革新,允许和鼓励优秀学生在课下更多的时间、不同的地点完成实验内容;同时建立实验考核试题库,将实验考核分为笔试和操作考核,切实提高大学生的实验动手能力;在实验课程的基础上建立的课外实践创新第二课堂为拔尖人才的培养提供了平台。     

论教师职前教育课程的现状与改革方向

我国中小学教师的职前教育在课程理念、课程设置、课程结构等方面存在着与教师职业专业化要求不相适应的状况,因此,要培养适应基础教育课程改革需要的专业化的教师,教师职前教育需要从以下几个方面进行改革:以教师专业化为导向,转变课程理念;以教师能力提高为宗旨,改革课程内容;以教师综合素质提高为目的完善课程结构。     

高校专业课程改革初探——以网络与新媒体专业为例

课程改革目的在于实现专业课程质量的提高。网络与新媒体专业设立时间段,在具体的课程教学中面临着各种各样的状况和问题,根据课程改革的要求,网络与新媒体在专业课程的改革中强化教师的主体作用,革新教学内容,推进课程考核的多元化进程,以期达到提高课程质量的目的。在贯彻落实教育部本科教育工作会议精神的基础上,根据学生生源结构的变化,开展一次旨在提升学生竞争力,促进其成长成才的教学改革迫在眉睫。专业课程改革围绕以学生为中心,立足于课程本身,专注于推动课程改革,以求达到切实提高课程教学质量的目的。     

地方师范类本科院校大学语文课程建设思考

高等教育中的“大学语文”课程,是以提高大学生母语素养为目标的基础性文化素质教育课程,它在高等学校专业人才培养和课程体系中不可或缺。地方师范类本科院校开设大学语文课程既必要又重要,但是地方师范类本科院校的大学语文课程有自身的局限性,在大学语文的课程定位、师资力量、教材建设和教学方法等方面只有扬长避短、突出特色才能对其进行有效的建设,从而提高地方师范类本科院校大学语文课程的教学质量。     

新课标下对信息技术教学的几点思考

本文探索了在新课标下,计算机课程向信息技术课程的转变过程,以及提高信息技术课程的教学质量和教学效率的方法。     

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.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

A computer generator for randomly layered structures

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

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.     

海南岛地体及其毗邻陆缘晚中生代—新生代古地磁研究和构造演化

本文叙述了对海南岛及其毗邻大陆边缘白垩纪到第四纪地层岩石进行古地磁研究的全部工作过程。通过分析岩石中剩余磁矢量的磁偏角及磁倾角的变化,提出海南岛白垩纪以来经历的构造演化模式如下:早期伴随顺时针旋转而向南迁移,后期伴随逆时针转动并向北运移。联系该地区及邻区的地质、地球物理资料,对海南岛上述的构造地体运动提出以下认识:北部湾内早期有一拉张作用,主要是该作用使湾内地壳显著伸长减薄,形成北部湾盆地。从而导致了海南岛的早期构造运动,而海南岛后期的构造运动则主要是受南海海底扩张的影响。海南地体运动规律的阐明对于了解北部湾油气盆地的形成演化有重要的理论和实际意义。     

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.     

《Chinese Science Bulletin》SUBJECT INDEX TO VOLUME 59(2014)

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Achieving Unusual States of Matter Under High Pressure

The elongation method,originally proposed by Imamura was further developed for many years in our group.As a method towards O(N)with high efficiency and high accuracy for any dimensional systems.This treatment designed for one-dimensional(ID)polymers is now available for three-dimensional(3D)systems,but geometry optimization is now possible only for 1D-systems.As an approach toward post-Hartree-Fock,it was also extended to