Differences in novice and experienced teachers’ perceptions of planning activities in terms of primary instructional tasks

This study was aimed at investigating differences between novice and experienced teachers’ perceptions of planning activities for developing teacher education students’ professional skills by focusing on promoting of identified ill-developed skills. The teachers’ thinking about instructional planning was conceived as teachers’ decision-making for implementing primary teaching tasks in the planning, delivery, and reflective phases of instruction. This model served as a basis (or framework) for the identification of potential variables of planning skills and developing of items for a teachers’ questionnaire. Fifty-eight experienced and 55 novice teachers from Estonian schools of general education were surveyed. It was revealed that novice teachers did not apprehend events that may undermine reaching long-term instructional objectives and they focused more on the achievement of immediate objectives and the teaching of obligatory content in comparison with experienced teachers.     

成人院校师资资源整合、共享模式研究

成人院校的教师资源作为学校各项资源中最重要的部分,也是满足学生教育要求的主体存在。因此,教师资源的整合势在必行,以现代信息技术作为载体,将教学资源共享,以满足学生的多样化学习需求。文章阐述了整合教育资源的意义,分析了成人院校师资资源现状及问题和成人院校师资资源共享模式及其优缺点,最后提出了成人院校师资的整合和共享对策及建议。     

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...     

新疆外向型企业翻译人才现状分析

近年来,随着西部大开发政策的实施及新疆政府涉外招商力度的加大,新疆企业与国外企业间的贸易往来愈加频繁.然而,由于起步较晚、人才输入匮乏,新疆外语翻译行业,尤其是外向型企业翻译领域还存在着诸多问题.本文以问卷和访谈的方法研究了新疆外向型企业翻译人才的现状和问题,并提出了相应的对策.     

试论核心企业的供应链文化构建

就一般意义上的供应链体系构建而言,供应链整合构建中大致有两种障碍,一种属于技术上的障碍,另一种属于文化上的障碍。技术上的障碍通过科技的发展、管理手段的丰富可以得到有效的克服,而文化上的障碍则必须依托核心企业,将核心企业文化作为连接节点企业的纽带进行倡导并推广,发挥自身的影响力,把企业的价值观辐射到其他企业中,进而通过建立整个供应链的共同文化来解决。     

人力资源管理专业劳动法案例教学理念的改革

案例教学法以其独特的优势在劳动法课程中获得了广泛的应用,给教学注入了活力、增添了趣味。受传统教学理念的影响,案例教学模式单一、教学效果不理想。试以人力资源管理专业劳动法案例教学现状为背景,对现行的案例教学理念进行分析,提出符合时代要求的案例教学理念,以期培养出社会需要的人力资源管理人才。     

出口退税、企业生产率与我国出口企业“生产率悖论”研究

Melitz的异质性企业贸易理论认为企业的出口行为是由企业的生产率和沉没成本相互作用而内生决定的。拟从出口退税视角出发,研究出口退税对企业生产率和沉没成本的影响。研究表明,出口退税可以帮助企业克服进入国际市场的沉没成本,降低出口企业临界生产率,使出口企业丧失提高生产率的动力,最后导致出口企业总体平均生产率低于内销企业,出现“生产率悖论”问题。     

Production of a monoclonal antibody against oxytetracycline and its application for oxytetracycline residue detection in shrimp简

A novel monoclonal antibody (MAb) against oxytetracycline (OTC) was generated and characterized. The MAb was used in the development of an enzyme-linked immunosorbant assay (ELISA)-based detection system. An OTC-bovine serum albumin (BSA) conjugate was prepared and used in the immunization of mice. A conventional somatic cell fusion technique was used to generate MAb-secreting hybridomas denoted 2–4F, 7–3G, and 11–11A. An indirect competitive ELISA (icELISA) was applied to measure the sensitivity and specificity of each MAb in terms of its 50% inhibitory concentration (IC50) and percentage of cross-reactivity, respectively. MAb 2–4F exhibited the highest sensitivity, with an IC₅₀ of 7.01 ng/ml. This MAb showed strong cross-reactivity to rolitetracycline, but no cross-reactivity to other unrelated antibiotics. When MAb 2–4F was used to detect OTC from shrimp samples, the recoveries were in the range of 82%–118% for an intra-assay and 96%–113% for an inter-assay. The coefficients of variation of the assays were 3.9%–13.9% and 5.5%–14.9%, respectively.     

河北省中小企业融资的现状与问题

中小企业的不断发展壮大对河北省调整产业结构、促进经济和社会可持续发展具有深远的战略意义。河北省在中小企业的融资方面做了大量工作,但是还存在着一些问题：获得银行的贷款难度较大,直接融资的渠道狭窄。