泰安市地质灾害预警预报系统研究

该文主要介绍了泰安市地质灾害气象风险预警与指挥系统。系统开发的主要目的是为了更好的与泰安市地质灾害防治工作相结合,通过对气象因素及地质灾害资料的分析和研究,基于地质灾害气象预警模型,采用先进的GIS技术能实现对地质灾害易发风险性区域预警,能直观地了解到各部分区域的地质灾害易发风险性,为各级政府防灾减灾提供科学的技术支撑。     

浅谈胶东半岛新石器时代早期文化

胶东半岛是指胶莱河以东的地区 ,是一个相对独立的地理单位 ,对于半岛地区新石器时代的早期文化存在着不同的认识 ,通过对白石村文化的文化特征及其与周围文化的联系等进行比较 ,白石村文化是胶东半岛新石器文化的源源。     

塔里木板块东北部柳园粗面玄武岩带：软流圈地幔减压熔融的产物

在塔里木东北部，甘肃省西部敦煌市柳园镇南侧，有一条近东西向展布的粗面玄武岩带，长度约150kin，宽度达10km，厚度为1900m。这条粗面石玄武岩带属下二叠统哲斯群，岩浆喷发方式以裂隙式溢流为主，枕状构造特别发育。在玄武岩层间夹有很薄的酸性凝灰岩和沉凝灰岩层，属典型的双峰式火山岩组合。按照岩石化学组成的TAS分类命名，主要岩石类型为玄武岩、夏威夷岩和橄榄粗安岩。主要造岩矿物为钠长石（Ab91～100）和普通辉石。普通辉石斑晶、钠长石斑晶和部分基质中的钠长石具有中空结构，并被层状硅酸盐微晶充填。这些岩石基本属碱性玄武岩系列和过渡型系列，大部分属演化的岩浆。演化程度较低的样品具有轻稀土元素亏损型配分曲线，微量元素地球化学具有MORB亲和性，εNd（t）-＋10．14～10．89。玄武质岩浆与陆壳物质之间有较轻的同化混染作用。普通辉石、铁钛氧化物的分离结晶作用是岩浆演化的主要机制。玄武质岩浆源区属于软流圈地幔．部分熔融发生于尖晶石稳定域．是软流圈地幔减压（上涌）熔融的产物。     

Help-seeking tendencies during early adolescence: An examination of motivational correlates and consequences for achievement

The present study examined the motivational correlates and achievement consequences of students’ help-seeking tendencies during sixth grade (N = 217). Students’ grades were collected from school records at the beginning and end of the school year. Midway through the year students reported on their academic self-efficacy and social demonstration goals; teachers reported on students’ help-seeking tendencies. First quarter grades and academic self-efficacy were positively related to adaptive help seeking and negatively related to avoidant help seeking. In addition, a social demonstration-approach goal was negatively related to adaptive help seeking. Help-seeking tendencies predicted 3rd quarter grades, controlling for 1st quarter grades.     

Identifying and predicting problem behavior trajectories among pre-school children investigated for child abuse and neglect

Objective

Young children involved with child welfare services are at high risk for behavior problems. This study aims to identify externalizing behavior paths that preschoolers in this high-risk population follow over a 6 year period, and the predictors of membership in normative and problematic pathways.

Methods

Using data from the National Study of Child and Adolescent Well-being (NSCAW), the sample included 246 4-year-olds who remained home after investigation. Latent class growth analysis (LCGA) was used to estimate the number, size, and shape of subgroups of preschoolers following distinct behavioral pathways. Early predictors of membership in the resulting groups were then examined.

Results

Four groups of preschool children following distinct behavior trajectories over 6 years were identified. Weighted results show that more than half (61%) of the children followed a low/normal problem behavior trajectory while just over one tenth (12%) were on a persistent high trajectory, remaining in the clinical range throughout the study. Improving (23%) and worsening (4%) problem behavior groups were also identified. Internalizing problems, attention problems, child ethnicity, and maltreatment type reported at age 4 predicted membership in the trajectory groups.

Conclusions

Internalizing behavior problems and maltreatment type may distinguish preschool children who are more likely to experience worsening or persistent problematic externalizing behaviors from those likely to follow a normal behavior trajectory.

Practice implications

Identifying early indicators of externalizing behavior problems and addressing them with evidence-based interventions to reduce negative behaviors may avert long-term negative outcomes.     

从刘翔的成功谈我国田径运动员早期训练

本文采用文献资料法、综合分析及逻辑推理等研究方法,以奥运冠军刘翔的成材之路为切入点,结合世界田坛优秀运动员的成长经历,强调对运动员进行早期专门化训练的重要性;并从非常规运动员选材模式（同类别不同项群以及同项群不同项目之间交叉选材的可行性）、运动员运动寿命的延长以及运动员竞技能力的培养与形成等,多视角、多层次进行探讨,以期为我国有关体育部门对优秀运动员的培养提供一些有价值的参考。     

中国共产党早期统一战线思想探源

从党早期统一战线思想形成的社会历史根源、理论渊源进行梳理,同时对苏共和共产国际对党早期统一战线工作的影响深入探讨,从而形成了对党早期统一战线思想相对完整的认识。     

唐虞早夏时期晋南环境变迁与农业技术选择

晋南地区是我国旱作农业的起源地之一,自古以来便是全国重要的农区。然而,在唐虞早夏时期,伴随着剧烈的社会环境变迁和史前全球性气候事件下当地自然环境的逐步演变,从农业技术选择的角度上来讲,当地先民们,在传统旱作农业依然占主导地位的前提下,局部性地采取了稻作农业技术,使得稻作农业在晋南地区经历了从无到有、并获得进一步发展的过程。     

前期延安文学对左翼文学的继承

延安文学与左翼文学紧密联系。二十世纪三十年代,大批左翼知识分子来到延安,成为前期延安文学的主要建构者。他们继承了三十年代左翼文学的文学主张,重视文学的宣传功能,主张批判暴露,积极推进文艺大众化讨论,为前期延安文学带来了生机。     

“十一五”期间我国职业教育研究述评

"十一五"时期,职业教育研究以促进我国职业教育改革和发展为出发点,在一些重要的研究领域取得了重大进展。本文以"十一五"全国教育科学规划职业教育学科课题和职业教育专项立项课题为研究对象,通过对课题数量、内容等方面的分析,总结"十一五"时期我国职业教育研究的基本情况、特点和存在问题,并提出相应的对策,以期对促进我国职业教育研究起到一定的积极作用。