大学生社交焦虑与手机互联网使用行为的关系:手机社交网络使用偏好的中介

采用交往焦虑量表、大学生手机移动互联网服务使用偏好问卷和大学生手机移动互联网过度使用行为问卷对1 488名大学生进行测试。结果发现:大学生社交焦虑水平与手机互联网过度使用行为差异显著高(P0.01),高社交焦虑大学生的手机互联网过度使用行为均显著高于低社交焦虑的大学生;社交焦虑、手机社交网络使用偏好和手机互联网过度使用行为3者间呈显著正相关(r=0.097~0.761,P0.01),社交焦虑和手机社交网络使用偏好均能显著正向预测手机互联网过度使用行为;手机社交网络使用偏好在社交焦虑与手机互联网过度使用行为间起部分中介作用,中介效应占总效应的16.0%。可见社交焦虑既可直接又可间接通过手机社交网络使用偏好对大学生手机互联网过度使用行为产生影响。     

大学生羞怯与手机移动互联网过度使用行为的关系:人际交往困扰的中介作用

为探讨大学生羞怯、人际交往困扰与手机移动互联网过度使用行为之间的关系,采用《羞怯量表》、《人际关系综合诊断量表》和《大学生手机移动互联网过度使用行为量表》对1488名在校大学生进行测量.结果表明:1)羞怯、人际交往困扰总分及各因子与手机移动互联网过度使用行为间存在显著正相关,羞怯与人际交往困扰总分及各因子间存在显著正相关;2)羞怯、人际交往困扰以及交谈交流困扰、交际交友困扰和异性交往困扰均对大学生的手机移动互联网过度使用行为有正向预测作用;3)人际交往困扰在羞怯与手机移动互联网过度使用行为之间起到完全中介效应.因此,羞怯对手机移动互联网过度使用行为的影响是通过人际交往困扰的完全中介作用实现的.     

人格特质对青少年移动社交网络使用的影响:性别的调节作用

采用问卷法对2 056名青少年进行测量。结果发现:外向性和神经质人格与移动社交网络使用具有显著正向关系,而开放性、谨慎性和宜人性对移动社交网络有显著负向相关;外向性和神经质人格对移动社交网络使用具有显著的正向预测;性别在神经质与移动社交网络使用间起到调节作用。结论:人格特质对移动社交网络使用具有影响,并且高神经质的女生更易产生移动社交网络过度使用行为。     

地方高校贫困大学生人格特质与主观幸福感的关系研究

采用“五因素”人格问卷（NEO—FFI）简式版、情绪量表、生活满意度量表对广东西部地区4所高校大学生进行问卷调查,对221份有效问卷进行分析。结果表明：贫困生人格特质、主观幸福感各维度得分上未见显著的经济收入、性别差异;消极情感与神经质显著正相关,与外向性、随和性、尽责性显著负相关;生活满意度与神经质显著负相关,与外向性、开放性、随和性、尽责性显著正相关;积极情感与神经质显著负相关,与外向性、开放性、尽责性显著乒相关。神经质、外向性、开放性、随和性、尽责性五种人格维度都进入了贫困生的生活满意度回归方程;神经质入选消极情感回归方程。神经质和外向性入选积极情感回归方程。     

基于回归分析对大学生延迟满足的独立预测

探索大学生延迟满足的主要影响因素,为实施有效的干预措施提供理论指导.采用网络问卷调查形式,以大五人格量表、一般健康量表和延迟满足量表为研究工具,对2018名大学生进行调查.相关分析和回归分析结果表明,大五人格因素中,尽责性、亲和性、神经质显著正向预测延迟满足,外向性显著负向预测延迟满足,求新性对延迟满足缺乏预测效力;心...     

论大学生人格特质、社会支持与自我和谐的关系

目的:探讨大学生人格特质、社会支持与自我和谐之间的关系。方法:采用艾森克人格问卷(简氏中国版)、社会支持评定量表、自我和谐量表测量500名大学生。结果:内外向性与自我和谐呈显著的正相关,精神质以及神经质与自我和谐呈显著的负相关,社会支持与自我和谐呈显著的正相关。社会支持在精神质与自我和谐之间发挥着完全中介作用,在内外向性、神经质与自我和谐之间发挥着部分中介作用。通过构建结构方程模型进一步验证了社会支持是人格特质与自我和谐关系中的中介变量。结论:人格特质通过社会支持的中介影响自我和谐。     

青少年人格特征与网络成瘾的关系:网络使用偏好的中介效应

以727名青少年为被试,采用《中学生人格五因素问卷》、《青少年网络使用偏好量表》和《青少年病理性互联网使用量表》考察青少年人格特征,其中主要考察谨慎性及情绪性2个维度与网络成瘾的关系,以及网络使用偏好在谨慎性/情绪性人格与网络成瘾间的中介作用。结果表明:谨慎性、情绪性人格特征对网络使用的信息获取正向预测作用;谨慎性人格特征对网络成瘾有正向预测作用,情绪性人格特征对网络成瘾有负向预测作用;互联网使用信息获取偏好和娱乐偏好对网络成瘾有正向预测作用;青少年网络使用偏好中信息获取使用偏好在青少年的情绪性、谨慎性人格特征与网络成瘾间具有部分中介效应,娱乐使用偏好在青少年情绪性人格特征与网络成瘾之间具有部分中介效应。     

大学生网络服务使用偏好与生活事件、依恋的关系研究

为了解大学生网络服务使用偏好与生活事件、依恋的关系,采用网络服务使用偏好问卷、青少年生活事件量表和大学生依恋问卷对498名在校大学生进行调查.调查结果表明:(1)大学生上网时最喜欢使用娱乐类服务；(2)大学生网络服务使用偏好受性别、年级、专业因素的影响,男生比女生更偏好娱乐类服务,大四学生比其他年级学生更偏好社交类和信息类服务,理工科学生比文史类学生更偏好交易类服务；(3)大学生网络服务使用偏好与生活事件、依恋关系密切.     

贵州贫困大学生人格特征与心理健康的相关研究

贵州贫困大学生人格特征和心理健康之间关系密切.人格四因子的得分均显著高于全国成人组的常模.不同性别、是否独生子女、不同来源地和文理科在神经质因子上具有显著差异.在内外向因子上,文科大学生得分显著高于理科大学生得分.在掩饰性因子上,母亲不同文化程度的大学生出现了显著差异.不同年级、父亲文化程度的大学生在内外向、神经质和精神质因子分上均呈现显著差异.是否兼职的大学生在四个因子分上均没有显著差异.人格神经质和内外向因子对心理健康各因子有一定的预测力.     

基于手机的大学生移动设备辅助英语学习问题调查与分析

移动设备的种类很多,大学生中最普遍的移动设备要算手机。近些年随着移动技术设备和互联网技术的快速发展,智能手机的持有率逐渐上升,弗雷斯特(Forrester Research)市场研究公司曾保守预测,2015年中国智能手机持有率将达到44%。然而,在中国高校里,大学生持有智能手机的比例远远高于此预测。手机在大学生的生活、学习中已扮演了不可或缺的角色,他们不仅利用手机娱乐消遣、交流感情、排解压力,还利用其增长知识、辅助学习(钱薇,2014)。然而,大学生使用手机作为辅助英语学习工具的情况如何、手机辅助语言学习是否是一种有效的外语学习方式、MALL与传统课堂英语学习方式的关系、影响手机辅助外语学习的因素都有哪些?这些问题是开展移动学习研究首先要考虑的问题,也是该文研究的重要内容。     

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.