The relationship between environmental factors and usage behaviors at ‘Hole-in-the-wall’ computers

This paper gathers and analyzes self-reported user behavior data for public computers installed in varied neighborhoods in India to explore the relationship between environmental factors such as urbanicity and reported usage behaviors. There is evidence of large differences in usage behavior between urban and non-urban sites. Children at urban sites fit a profile of dedicated and independent kiosk-goers, while rural children are more likely to use the computers in groups. Total overall computer usage, however, appears similar in both environments. The sites used for the study have other important characteristics, such as proximity to a school complex, which could have large mitigating effects on the measured behaviors. Further study could yield other interesting and more generalizable results. This study provides insight into children's behavior patterns at free-access ‘Hole-in-the-Wall’ computers as well as offers exploratory findings for the designers of free-access computers in developing nations where alternative educational development via technology could be implemented.     

水淹车故障处理解析

2012年,我国由于各种原因导致车辆被水淹泡造成的经济损失数以亿计,给社会带来很大负担。本文针对水淹车故障,提出如何应急处理,如何维修事故车辆,以降低损失。把水淹车的情况分成三个层次,分别阐述其处理方法和注意事项。为修理人员和有车族提供参考。     

晶粒生长过程的蒙特卡罗模拟方法

计算机模拟晶粒生长所用的模型及模拟方法大体可分3种:蒙特卡罗(Monte Carlo)方法或改进的蒙特卡罗方法(简称MC法)、使用连续扩散界面场模型以及将细胞状的晶粒结构看作Laguere棋盘形布局来处理的Laguerre模型.特别是应用于模拟焊接热影响区(HAZ)晶粒长大的二维和三维过程取得了较好结果,但在生长模型的边界处理等方面有待继续完善,特别是晶粒生长与晶化温度、时间、气氛等参数密切相关,这种复杂工艺条件下的晶粒生长过程的模拟,是当前该领域正待解决的难题.     

A “Do‐It‐Yourself” interactive bone structure module: Development and evaluation of an online teaching resource

A stand‐alone online teaching module was developed to cover an area of musculoskeletal anatomy (structure of bone) found to be difficult by students. The material presented in the module was not formally presented in any other way, thus providing additional time for other curriculum components, but it was assessed in the final examination. The module was developed using “in‐house” software designed for academics with minimal computer experience. The efficacy and effectiveness of the module was gauged via student surveys, testing student knowledge before and after module introduction, and analysis of final examination results. At least 74% of the class used the module and student responses were positive regarding module usability (navigation, interaction) and utility (learning support). Learning effectiveness was demonstrated by large significant improvements in the post‐presentation test scores for “users” compared with “non‐users” and by the percentage of correct responses to relevant multiple choice questions in the final examination. Performance on relevant short answer questions in the final examination was, on average, comparable to that for other components. Though limited by study structure, it was concluded that the module produced learning outcomes equivalent to those generated by more traditional teaching methods. This “Do‐It‐Yourself” e‐learning approach may be particularly useful for meeting specific course needs not catered for by commercial applications or where there are cost limitations for generation of online learning material. The specific approaches used in the study can assist in development of effective online resources in anatomy. Anat Sci Educ 6: 107–113. © 2012 American Association of Anatomists.     

The development of communication apprehension: A retrospective analysis of contributory correlates

Although a considerable amount of research demonstrates the powerful effect of oral communication apprehension on social behavior, little research has explored the etiological bases for that anxiety. This research examines the role of parent/home and school variables in predicting the apprehension of college students. Results suggest that the amount of positive reinforcement for communication attempts experienced at home contributes significantly, while general parental affect, negative or punishment responses from parents, and parental competitiveness do not. The grade‐school environment and the perceived amount of error correction present in both grade school and high school were also found to have a significant effect Home and school, when taken together, accounted for significantly more of the apprehension than either one did individually although school effects predominate over home effects.     

Is there an impact of household computer ownership on children's educational attainment in Britain?

If personal computers (PCs) are used to facilitate learning, then a home computer might be considered a potential input in an educational production function. Using data on British youths from the British Household Panel Survey between 1991 and 2001, this paper explores the link between ownership of a home computer at ages 15 and 17 and subsequent educational attainment in the principal British school examinations taken at ages 16 (GCSEs) and 18 (A-levels). The data show a significant positive association between PC ownership and the number of GCSEs obtained and with the probability of passing five or more GCSEs. These results survive a set of robustness tests, including using other household durables and “future” PC ownership as proxies for household wealth and other unobservable household level effects. Home computer ownership is also associated with a significant increase in the probability of passing at least one A-level and with an increase in the probability of successfully completing three or more A-levels, conditional on having passed at least one A-level.     

Sister Carrie, an Adherent of Desires

Sister Carrie is one of the most controversial characters in American literature.Thought as a "fallen woman" firstly,she was defined as a "new woman" by some critics later. However, by digging into the motivaton behind the whole process of Carrie's "success", the relationship between Carrie and her creator (the author), the social conditions of then American, it can be found that Carrie has never been free-standing on her thought and she has never found her real-sdf even after becoming a famous actress. In a society dominated by mass consumerism Carrie is only an adherent of her own desires. She also is a representative of all those country girls flooded into cities, a symbol and a sacrifice of the urbanization of America in a time countryside was overcome by cities.     

X25045在灯光换色器设计中的应用

通过学习单片机的一些原理和应用，介绍AT89C2051单片机为控制器的新型舞台灯光换色器HSO-1A。该换色器可变换8种色彩，换色精度高，工作可靠。     

Attitudes and confidence towards computers and books as learning tools: a cross-sectional study of student cohorts

Students today comprise a very diverse group, and this will be reflected in their attitudes towards learning. This study set out to examine four different cohorts of UK students during the same time period. Contrary to expectations, it was found that attitudes towards books and computers, as measured by separate but matched scales, were equal, even though experience of the two media varied considerably. A key predictor for computer attitude was found to be confidence for learning from computers rather than general computer confidence. Further, attitudes and confidence towards books and computers as learning tools varied significantly across the four cohorts.     

基于工学结合的高职计算机基础课程项目教学设计

在高职课程项目教学设计的指导思想的基础上,以计算机应用基础课程为例,从项目教学的确定任务、制定计划、实施计划、效果评价4个步骤来详细介绍项目教学过程,并分析高职项目教学过程中存在的问题。