论教师在新课程背景下的角色定位

随着新一轮基础教育课程改革的全面实施,教师的角色发生了重大的转变.教师应提高认识,创造条件,认真履行好学习的促进者,言传身教的示范者,集体活动的组织者,心理健康的维护者,人际关系的协调者,课程的开发者,教育教学的研究者,终身学习者等多重角色职能.要实现角色转变,必须加强自我更新和培训.     

黑色的瀑布

说到瀑布,人们自然想起黄果树大瀑布,雄伟的气势,壮观的场面,真是无法言喻的美不胜收。然而,我更青睐黑色的瀑布,它不在隽美的大峡谷之中,也不在雄浑的山颠之下,而是在漆黑漆黑的矿井里。当你打开放煤大眼的闸门,刹那间,一条奔涌的黑色河流好像从天而降,像大瀑布一样,流入一辆辆矿车,流入窑哥们的心海里。每每看到它,一张张糙脸如同绽放的黑牡丹,心儿滋生了一种欢愉,一种自豪,眼里闪烁的尽是幸福的光芒。     

青年：不要把欲望当做志气

 上周上课时,课间给学生们谈点乱弹琴,提到梁漱溟的一段话,是关于欲望与志气的关系的,这段话虽然说在几十年之前,放在今天,尤其是各种五颜六色的选择很多的时候,似乎更具有现实意义。梁漱溟在《朝话：人生的省悟》一书中是这么说的：在这个时代的青年,能够把自己安排对了的很少。在这个时代,有一个大的欺骗他,或耽误他,容易让他误会,或让他不留心的一件事,就是把欲望当志气。这样的用功,自然不得其方。也许他很卖力气,因为背后存个贪的心,不能不如此。可是他这样卖力气,却很不自然,很苦,且难以长进。虽有时也会起一个大的反动,觉得我这样是干什么？甚或会完全不干,也许勉强干。但当自己勉强自己时,读书做事均难入,无法全副精神放在事情上。甚且会自己搪塞自己。越聪明的人,越容易有欲望,越不知应在哪个地方搁下那个心。心实在应该搁在当下的。可是聪明的人,老是搁不在当下,老往远处跑,烦躁而不宁。所以没有志气的固不用说,就是自以为有志气的,往往不是志气而是欲望。仿佛他期望自己能有成就,要成功怎么个样子,这样不很好吗？无奈在这里常藏着不合适的地方,自己不知道。自己越不宽松,越不能耐,病就越大。所以前人讲学,志气欲望之辩很严,必须不是从自己躯壳动念,而念头真切,才是真志气。张横渠先生颇反对欲望,谓民胞物与之心,时刻不能离的。自西洋风气进来,反对欲望的话没人讲,不似从前的严格,殊不知正在这些地方,是自己骗自己害自己。     

非洲雄狮：曼德拉

“钟声响起归家的讯号,在他生命里,仿佛带点唏嘘,黑色肌肤给他的意义,是一生奉献,肤色斗争中,年月把拥有变做失去,疲倦的双眼带着期望,今天只有残留的躯壳,迎接光辉岁月,风雨中抱紧自由,一生经过彷徨的挣扎,自信可改变未来,问谁又能做到．可否不分肤色的界限,愿这土地里不分你我高低,缤纷色彩闪出的美丽,是因它没有分开每种色彩,年月把拥有变做失去,疲倦的双眼带着期望,今天只有残留的躯壳,迎接光辉岁月,风雨中抱紧自由……”     

秋季养生以和为贵——健康科技短信息

秋天,从立秋开始,历经处暑、白露、秋分、寒露、霜降六个节气,其中的秋分为季节气候的转变环节。《内经·素问·四气调神大论》说:"秋三月,此为容平,天气以急,地气以明。"时至秋令,碧空如洗,地气清肃,金风送爽,万物成熟,正是收获的季节。秋季的气候是处于"阳消阴长"的过渡阶段,立秋至处暑,秋阳肆虐,温度较高,加之时有阴雨绵绵,湿气较重,天气以湿热并重为特点,故有"秋老虎"之说。"白露"过后,雨水渐少,天气干燥,昼热夜凉,气候寒热多变,稍有不慎,容易伤风感冒,许多旧病也易复发,被称为"多事之秋"。由于人体的生理活动与自然环境变化相适应,体内阴阳双方也随之发生改变。因此,秋季养生在对精神情志、饮食起居、运动导引等方面进行调摄时,应注重一个"和"字。     

网络文化背景下的大学生道德问题浅析

面对网络文化的冲击,大学生道德品质出现"滑坡"现象,表明社会的道德教育乏力.目前,社会对大学生的道德教育,主要是通过宣传和说教等方式进行理论的灌输,但这些积极的应对措施并没有从根本上解决大学生的道德滑坡问题.道德教育是在社会教育包括学校教育(他律)和大学生的自我教育(自律)二者交互作用中完成的,其中,大学生的自律是其中的决定性环节,大学生只有通过内省、慎独、自我磨练等方式,并审视自身的生活方式、生活态度,建立自己的学习型社团,在集体中反思自己,同时树立正确的网络观,摆脱虚幻的而进行实实在在的大学生活,才能达到人格的升华.     

直销企业应把赈灾当重大公关事件来重视

地震震动了山河,震垮了房屋,但是它震不倒我们的心,也震不垮我们中华民族的魂。我们的主席、我们的总理,我们的军队,我们的白衣天使,我们的志愿者都在一线,和受灾的人民在一起;我们的后方在献血,在捐款,在捐物,在救死扶伤,在帮扶安置,在谋划重建家园,我们万众一心,我们众志成城。在大灾难面前,我们各尽所能,各尽所力,我们义无反顾地选择了作为企业公民和社会人应该承担的责任。 赈灾还在继续,我们做过的事,即使已经尽力了也不能抹去其反映的缺陷;可是我们能做的,我们还可以做的事还很多很多,因此我们要总结经验,吸取教训。在灾难中成长,为了接下来的赈灾工作,也为了面对将来可能发生的一切。     

大棚香椿的栽培

香椿俗称香椿头、椿芽,是我国特有的传统美味佳蔬,香椿全身都有很高的经济价值.香椿的食用部分是嫩芽、嫩叶,因其正在旺盛生长,营养特别丰富.香椿脆嫩甘美,多汁,无渣,香味浓郁;加之,芽色紫红,又正值春季采吃,颇富春意,自古就是我国人民喜爱的应时调味佳蔬.近年来开发的香椿罐头,香椿保鲜速冻出口创汇贸易,为香椿的生产发展带来很高的经济效益和发展良机.     

就此离去,MH370

正每一天,人们都会碰到许多烦恼,在烦恼的日子里,也会产生厌倦以及无法自拔的情绪,周遭的一切变得模糊,各种情景浮现在脑海里,让人失去希望。但或许,只有在面对死亡时,人才会真正失去希望,尤其这种离去是亲人的离去。三月,从吉隆坡飞往北京的马航MH370客机失踪,从最初官方发布的失联状态到3月24日公布的坠毁信息,过程之漫长,情     

洗衣健身器

洗衣健身两不误 "aigo爱国者杯"第二届北京发明创新 大赛银奖 发明人:何璇 随着人们日常生活节奏的加快,洗衣难、锻炼少的问题也逐渐凸显出来,尤其是校园里的学生,出租房住户,旅馆人员等人群,都不同程度地存在不方便使用洗衣机的问题.洗衣服,健身,两个似乎毫不相关的事情,却有一个人把它们结合在了一起.何璇,一个毕业不久的大学生,凭借自己的爱好做出了一种价格低廉,无需电源,又可用来健身的洗衣产品--洗衣健身器.     

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.     

A computer generator for randomly layered structures

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

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。     

Exciton Seebeck in Molecular Systems

Various applications relevant to the exciton dynamics,such as the organic solar cell,the large-area organic light-emitting diodes and the thermoelectricity,are operating under temperature gradient.The potential abnormal behavior of the exicton dynamics driven by the temperature difference may affect the efficiency and performance of the corresponding devices.In the above situations,the exciton dynamics under temperature difference is mixed with     

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     

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

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An on-line scaling method for improving scalability of a database cluster

The explosive growth of the Internet and database applications has driven database to be more scalable and available, and able to support on-line scaling without interrupting service. To support more client's queries without downtime and degrading the response time, more nodes have to be scaled up while the database is running. This paper presents the overview of scalable and available database that satisfies the above characteristics. And we propose a novel on-line scaling method. Our method improves the existing on-line scaling method for fast response time and higher throughputs. Our proposed method reduces unnecessary network use, i.e. , we decrease the number of data copy by reusing the backup data. Also, our on-line scaling operation can be processed parallel by selecting adequate nodes as new node. Our performance study shows that our method results in significant reduction in data copy time.     

An improved R-tree based on childnode''s probability

R-Tree is a good structure for spatial searching. But in this indexing structure,either the sequence of nodes in the same level or sequence of traveling these nodes when queries are made is random. Since the possibility that the object appears in different MBR which have the same parents node is different, if we make the subnode who has the most possibility be traveled first, the time cost will be decreased in most of the cases. In some case, the possibility of a point belong to a rectangle will shows direct proportion with the size of the rectangle. But this conclusion is based on an assumption that the objects are symmetrically distributing in the area and this assumption is not always coming into existence. Now we found a more direct parameter to scale the possibility and made a little change on the structure of R-tree, to increase the possibility of founding the satisfying answer in the front sub trees. We names this structure probability based arranged R-tree (PBAR-tree).     

Integrating GIS Web services based on mediating architecture

The geographic information service is enabled by the advancements in general Web service technology and the focused efforts of the OGC in defining XML-based Web GIS service. Based on these models, this paper addresses the issue of services chaining,the process of combining or pipelining results from several interoperable GIS Web Services to create a customized solution. This paper presents a mediated chaining architecture in which a specific service takes responsibility for performing the process that describes a service chain. We designed the Spatial Information Process Language (SIPL) for dynamic modeling and describing the service chain, also a prototype of the Spatial Information Process Execution Engine (SIPEE) is implemented for executing processes written in SIPL. Discussion of measures to improve the functionality and performance of such system will be included.     

Tracking data management using topology of moving object database system for moving object constrained trajectory in LBS application

Advances in wireless technologies and positioning technologies and spread of wireless devices, an interest in LBS (Location Based Service) is arising. To provide location based service, tracking data should have been stored in moving object database management system (called MODBMS) with proper policies and managed efficiently. So the methods which acquire the location information at regular time intervals then, store and manage have been studied. In this paper, we suggest tracking data management techniques using topology that is corresponding to the moving path of moving object. In our techniques, we update the MODBMS when moving object arrived at a street intersection or a curved road which is represented as the node in topology and predict the location at past and future with attribute of topology and linear function. In this technique, location data that are corresponding to the node in topology are stored, thus reduce the number of update and amount of data. Also in case predicting the location,because topology are used as well as existing location information, accuracy for prediction is increased than applying linear function or spline function.