地质超前预报系统在栋梁坡隧道施工中的应用

基于地震反射波法超前预测系统的原理及主要技术手段,以栋梁坡隧道工程为实例,针对隧道复杂的地质条件,施工过程中将超前地质预报和地质素描调查相结合,先对隧道全段范围内地形、地层岩性等进行全面核查,然后结合核查结果运用地震反射波法预报掌子面前方的节理裂隙发育情况,围岩完整性等地质信息.开挖后验证情况与预测结果基本一致,为后续...     

Seeing the Forest and the Trees: Comparison of Two IRTree Models to Investigate the Impact of Full Versus Endpoint-Only Response Option Labeling

In this study, we examined the results and interpretations produced from two different IRTree models—one using paths consisting of only dichotomous decisions, and one using paths consisting of both dichotomous and polytomous decisions. We used data from two versions of an impulsivity measure. In the first version, all the response options had labels; in the second version, only the endpoints were labeled. Based on past research, we hypothesized that the endpoints would be selected more frequently in the endpoint-only labeled condition, and the midpoint response option would be selected more frequently in the fully labeled condition. Results from the two models (dichotomous and polytomous) were similar and indicated that our hypotheses were partially supported—specifically, there was no consistent pattern in terms of which condition saw a higher frequency of midpoint response selection. However, our hypotheses regarding extreme responding in the endpoint-only labeling condition were supported.     

税费改革对村级财务状况的影响——对全国100个村的跟踪调查

税费改革过程中,由于上级财政补助增加,样本村总收入并未下降,但自营收入能力下降明显.随着改革的深入,样本村日益依赖不可持续的土地承包、征地补偿和出售集体资产来维持收入水平,导致村级财务状况堪忧;样本村对自身财务的控制能力逐渐减弱;支出方面,样本村组织基本运转支出还能得到保障,公共投资支出也在增加,但村里对建成项目的日常维护和社会福利保障支出下降;村级债务也有扩大的趋势.另外,税费改革对不同经济发展水平的村庄的影响也存在差异.     

GPS测量技术在中小城镇地籍测量控制中的应用

土地管理工作的基础是地籍测量,它是获取地籍管理信息的最重要途径之一,应用GPS进行地籍控制测量,点与点之间不要求互相通视,这样避免了常规地藉测量控制时,控制点位选取的局限条件。由于GPS技术具有布点灵活、全天候观测、观测及计算速度快、精度高等优点,使GPS技术在国内各省市的城镇地籍控制测量中得以广泛应用。针对地籍测量的要求,从经济、精度、时间方面探讨了GPS地籍控制测量的技术问题,提出了切实可行的解决方案。     

高等医学院校学报栏目设置现状的调查与分析

目的：了解高等医学院校学报的栏目设置状况。找出不同类型医学院校学报的栏目设置特点及存在问题。方法：在高等医学院校学报中按重点院校和普通院校各选10所院校2008年度发表的学报作为样本,分为AB两组,每组60期。运用统计学方法,对两组栏目名称,栏目数量,栏目使用数、使用率,栏目载文数、载文率进行统计分析。结果：A组的栏目数最多8个／期,最少2个／期,平均5．46个;B组栏目数最多12个／期,最少2个／期,平均6．02个。A组栏目使用数（使用频次）最多的分别为：论著141次（43．12％）,述评、综述、专题58次（17．73％）,技术、方法、调查41次（12．54％）;B组栏目使用数最多的分别为：论著138次（37．81％）,述评、综述、专题48次（13．15％）,其他54次（14．78％）。两组比较X2=36．287,P〈0．01。A组发文数最多的分别是论著类1748篇（74．67％）,短篇、个案、疑难病例206篇（8．8％）,述评、综述、专题197篇（8．41％）;B组发文最多的分别为：论著1551篇（55．14％）,其他397篇（14．11％）,经验交流、短篇论著386篇（13．72％）。两组比较X2=755．439,P〈0．001,差异有非常显著性意义。结论：重点医科大学学报论著栏目比重及发文量均大于普通医学院校学报,学术氛围更加浓厚;两组的栏目设置均存在一些问题．尤以部分普通院校学报为重。有待进一步改进。     

影响大学英语教学质量的若干因素调查分析

以学习目的、兴趣以及对教师和学习环境的期望为研究内容,对450名非英语专业2年级学生进行相关问卷调查,从学生对学习目的、学习兴趣、课余英语学习时间、对教师的期望和对学习环境的期望出发,揭示学生学习的特点及潜在的逻辑关系。并以此建立大学生英语学习需求的虚拟模型,从而为改善和提高大学英语的教学质量提供参考。     

西北某市域青少年犯罪调查报告

某市青少年犯罪有加剧之势,为厘清青少年犯罪现状及其原因,报告从关于统计调查的情况、关于抽样调查的情况、关于问卷调查的情况、关于访谈的情况四个方面全面反映了某市青少年犯罪的情况,在此基础上给出了某市青少年犯罪的五点总结意见和五项具体对策。     

浅谈现行统计调查存在的问题及建议

随着我国政治经济形势的发展，党和国家决策需要统计部门提供的数据越来越多。依靠以往已实行的普查、抽样调查等方法进行统计数据收集，已不能适应形势发展之需，因此，对统计调查中存在的问题必须进行分析，找出解决这些问题的办法。     

An international perspective on civic participation in Irish post-primary schools: results from ICCS

Ireland was one of the 38 countries/education systems that participated in the International Civic and Citizenship Education Study (ICCS) in 2009. This is the first international comparative study in this area in which Ireland has participated since 1971. The study measured the civic knowledge of 14-year-olds and their attitudes towards, and beliefs about, various civic and citizenship issues. The current paper focuses on indicators of students' and (to a lesser extent) parents' participation in school life. Although active participation in school is emphasised in, for example, the Education Act of 1998, little empirical work in Ireland has defined or examined actual levels of participation in post-primary schools, or students' views of their opportunities to participate, and ICCS provides information on these issues in an international comparative context. Findings indicate that despite a relatively strong civic knowledge base among students in Ireland, levels of participation compare less favourably with other countries. Results are discussed in the wider context of the Irish education system.