教师持续专业学习与发展:内涵、条件与评估 ——专访英国诺丁汉大学荣休教授戴杰思

在教师发展领域,基于原有的教师“专业发展(PD)”“持续/连续专业发展(CPD)”,戴杰思教授进一步提出并强调教师“持续专业学习与发展(CPLD)”的概念。他认为,CPLD项目本质上是对教师实施的系列干预活动,主要是通过有意识地为教师提供有价值的学习内容和发展机会,促进教师的专业成长,从而实现学校的积极变革和可持续发展。在CPLD项目的设计和实施过程中,要重视教师的内因作用,特别是他们的情绪韧性;同时,学校在开展CPLD项目过程中,需要从四个方面保障其有效性,即正确认识教师学习的本质与改变、重视教师专业性、提升学校领导层重视度、创建专业学习共同体。由于教师工作的复杂性,CPLD项目实施效果的测量和评估需通过构建长期、多视角立体式的测评模式探索其有效的路径和方法。     

Unpacking (un)conscious social class bias in faculty hiring processes in Chile: PhD prestige granting university and network

Social class of origin is apparently an imperceptible attribute among doctorate holders seeking academic jobs. Yet, recent studies in different countries reveal that social class of origin may still be influencing the chances of PhD holders from low social class being hired at prestigious universities. Drawing from the theory of social and cultural reproduction, normative ‘fair’ academic hirings frameworks, and qualitative evidence collected in Chile, this research identifies the mechanisms that trigger (un)conscious social class bias in the stages of recruitment and selection of candidates in seven academic departments in economics and industrial engineering (46 interviews). Findings did not prove explicit classism manifestations, but practices of inclusion/exclusion of candidates based on the prestige of PhD-granting universities, and networks. These reproduce the relationship between social class and unequal chances of being connected to prestigious universities. Recommendations to address (un)conscious social class bias in academic hiring are discussed.     

The bilateral benefits of providing and receiving peer feedback in academic writing across varying L2 proficiency

Although the effectiveness of peer review has been examined, few have tested the joint benefits of providing and receiving feedback features and quality in L2 contexts. The present study investigated variation in key features and quality of feedback provided and received by high and low L2 proficiency students and its benefits on revision in the authentic setting of students experiencing both roles of providing and receiving peer feedback in English academic writing. Analyses on two drafts from 50 students, 1356 idea units of anonymous implementable peer feedback and back-evaluation ratings revealed that the combined effect of providing and receiving feedback on revision was prominent for all students. But the bilateral benefits of providing and receiving feedback features were more significant for high proficiency students, while providing feedback features and quality benefited low proficiency students more. The study implies that students need more bilateral training with both providing and receiving feedback.     

简论书目著录标准RDA和AACR2的异同

论文先后论述了RDA的定义、RDA和AACR2的主要异同、RDA的重要性、RDA的目标与原则,最后通过与AACR2比较,归纳了RDA的五个基本特点.     

Struts2框架浅析

Struts2作为当今优秀的MVC框架,具有功能强大、使用简单灵活的优点,本文对Struts2的产生背景、运作机制、Struts2框架的搭建等进行了介绍,较全面展现了Struts2框架,以供Struts2框架学习和开发人员参考。     

江西节能减排与清洁发展机制研究

清洁发展机制是根据《京都议定书》建立的一种创新型国际合作机制,是发达国家和发展中国家的一种国际合作方式,发展清洁发展机制项目既有助于推进实现节能减排目标,也为减缓全球气候变化作出积极贡献。江西具有开展清洁发展机制项目的优势,应充分利用清洁发展机制,实现"十二五"规划节能减排目标。     

互联网金融借贷平台的法律问题研究:以P2P为例

本文主要通过介绍互联网金融P2P借贷发展的概念,详细分析了互联网金融最具代表性的P2P网络借贷平台最近的发展状况及其带来的各种法律风险。然后运用国内外互联网金融理论对我国P2P网络借贷平台的现实问题进行具体阐述,提出一系列完善法律制度、建立完善互联网金融体系的建议。     

基于鱼群的PSO粒子滤波算法

粒子群优化(PSO)粒子滤波算法比较而言,容易陷入局部最优,因此算法的准确度就会降低。本文在解决该问题时引入了一种基于鱼群的PSO粒子滤波算法。此算法是通过鱼群优化在采样过程中找到全局最优的相对位置,使其能够向全局最优的位置逐渐接近,同时提高估计有效的粒子数目,从而能够更有效的减少粒子退化与枯竭问题。实验表明,此算法与PSO粒子滤波算法相比,在估计准确度方面有了较大的提升。     

酸浆宿萼总皂苷对小鼠免疫活性的影响

本文以干燥的酸浆宿萼为实验材料,经乙醇回流提取,并通过溶剂萃取和大孔树脂进一步分离得到酸浆宿萼皂苷(TSP)。以不同剂量TPS连续20天对正常小鼠进行灌胃,探讨了TPS对小鼠免疫活性的作用。结果表明:高剂量(40mg/m L)的TPS溶液能极显著的增加小鼠的免疫器官指数(P0.05)和巨噬细胞吞噬指数;免疫球蛋白(Ig G)含量,P0.01;改善血常规指数。而低剂量(5mg/m L)的TPS溶液对小鼠上述指标有显著的正面影响,P0.05。总体上,在实验浓度范围内,TPS具有增强小鼠免疫活性的作用且呈剂量依赖性。     

Migrating product structure bill of materials Excel files to STEP PDM implementation

It is important for manufacturing companies to provide a standard for product data exchange between diverse computer systems. Past attempts to develop neutral format standards for data exchange have had limited success, and have led to the development of STEP (Standard for the Exchange of Product) as a data exchange standard. The STEP standard makes it easier to integrate systems that process various product life-cycle functions, such as design, engineering, manufacturing, logistics support, and will help to facilitate concurrent engineering. The goal of this paper is to facilitate the computer-readable exchange of the product bill of materials (BOM) information for product data management (PDM). In this paper, the STEP ISO 10303-21 is implemented to share the product data information in a manufacturing environment. A structural product bill of materials is first transformed into an Excel file format, then a PDM Schema Exporter is utilized to export a BOM Excel file to a STEP Part 21 file. A C# program decodes the STEP file into BOM information to update the PDM databases in SQL server for product data management. Also, SAS code is written to generate the indented bill of materials from the BOM information, to draw a tree diagram to present an accurate structural view of a product, and to export to PDM databases for product data structural view.