Comfort drawing during investigative interviews: Evidence of the safety of a popular practice

Objective

This study evaluated the impact of comfort drawing (allowing children to draw during interviews) on the quality of children's eyewitness reports.

Methods

Children (N = 219, 5 to 12 years) who had participated in an earlier memory study returned 1 or 2 years later, experienced a new event, and described these events during phased, investigative-style interviews. Interviewers delivered the same prompts to children in the no drawing and drawing conditions but provided paper and markers in the drawing condition, invited these children to draw, and periodically asked if they would like to make another picture.

Results

Most children in the drawing condition were interested in using the materials, and measures of eyewitness performance were sensitive to differences in cognitive ability (i.e., age) and task difficulty (i.e., delay between the remote event and interview). Comfort drawing had no overall impact as evidenced by nonsignificant main effects of condition across 20 performance measures, although more of the younger children reported experienced touching in the drawing than no drawing condition.

Conclusions

The children successfully divided attention between voluntary drawing and conversations about past events. Importantly, comfort drawing did not impair the amount of information recalled, the accuracy of children's answers, or even the extent to which interviewers needed to prompt for answers. Due to the large number of analyses, the benefit of drawing for younger, touched children requires replication.

Practice Implications

Comfort drawing poses no documented risks for typically-developing school-aged children, but the practice remains untested for younger children and those with cognitive impairments.     

高职室内设计专业施工图教学改革探讨

当前高职室内设计专业施工图教学中存在诸多问题：不熟悉制图规范及设计相关尺寸,室内装饰材料、施工工艺、施工构造方面的知识储备不够,绘图能力达不到要求。针对这种情况,必须改革相关制图课程,对任课教师进行实践技能的培训,以实际项目导入施工图教学,将施工图绘制能力的培养贯穿整个教学体系。     

基于《机械CAD》课程的嵌入式电气绘图教学实践

围绕企业岗位技能需求,分析高职高专院校在机电设备维修与管理专业CAD绘图教学中存在的问题,分析简化＂电气CAD＂课程的内容;基于＂机械CAD＂课程,以块功能为节点嵌入式讲授绘制机械电气图知识并即教即练.实践表明：学生仅用8课时就学会了绘制机械电气图的技能,提高了教学效率,满足了企业工作要求.     

全民健身活动中体育绘图推广与普及的可行性研究

运用文献资料法、问卷调查法和数理统计法对广东省具有代表性的广州、珠海、汕头、湛江四市体育绘图知识的普及和推广现状进行研究.研究认为广东省群众对体育绘图知识比较感兴趣,女性识图能力强于男性,但健身运动场所关于体育绘图方面的设置不均衡.建议在体育专业和大学普通体育课中开设体育绘图的课程、健身运动场地中增加有关体育绘图的图案,增加经济不发达地区的体育硬件和软件投入,并将体育绘图作为社区指导员上岗的培训项目.以期为从心智拓展及形象思维能力培养方面拓宽全民健身途径提供有益参考.     

城市轨道交通列车运行图编制模拟系统

列车运行图及列车时刻表作为城市轨道交通系统运输组织的基础,承担着城市轨道交通列车运行组织与列车运行调整的重要职能。文章详细介绍了在Visual Studi02008环境下实现城市轨道交通列车运行图的自动铺画和调整功能。采用面向对象的程序设计方法,保证了系统的稳定性、可靠性和扩展性。并从编图系统框架和数据结构设计方面详细介绍了主要功能模块的开发,分析了在这种结构下各对象成员的层次关系。最后将该系统用于上海地铁8号线CBTC系统,实现运行图的自动铺画。     

Evaluation of sample hemolysis in blood collected by S-Monovette? using vacuum or aspiration mode

Background:

In vitro hemolysis can be induced by several biological and technical sources, and may be worsened by forced aspiration of blood in vacuum tubes. This study was aimed to compare the probability of hemolysis by drawing blood with a commercial evacuated blood collection tube, and S-Monovette used either in the “vacuum” or “aspiration” mode.

Materials and methods:

The study population consisted in 20 healthy volunteers. A sample was drawn into 4.0 mL BD Vacutainer serum tube from a vein of one upper arm. Two other samples were drawn with a second venipuncture from a vein of the opposite arm, into 4.0 mL S-Monovette serum tubes, by both vacuum an aspiration modes. After separation, serum potassium, lactate dehydrogenase (LD) and hemolysis index (HI) were tested on Beckman Coulter DxC.

Results:

In no case the HI exceed the limit of significant hemolysis. As compared with BD Vacutainer, no significant differences were observed for potassium and LD using S-Monovette with vacuum method. Significant increased values of both parameters were however found in serum collected into BD Vacutainer and S-Monovette by vacuum mode, compared to serum drawn by S-Monovette in aspiration mode. The mean potassium bias was 2.2% versus BD Vacutainer and 2.4% versus S-Monovette in vacuum mode, that of LD was 2.7% versus BD Vacutainer and 2.1% versus S-Monovette in vacuum mode. None of these variations exceeded the allowable total error.

Conclusions:

Although no significant macro-hemolysis was observed with any collection system, the less chance of producing micro-hemolysis by S-Monovette in aspiration mode suggest that this device may be used when a difficult venipuncture combined with the vacuum may increase the probability of spurious hemolysis.     

基于项目导向的《AutoCAD工程绘图》实践研究

结合《AutoCAD工程绘图》课程实践,论述了该课程的特点,以及采用项目化的优势;详细介绍了课程项目化的设计思路,实施过程,最后对课程实施项目化后的效果进行了总结。     

建筑工程制图融合CAD技术教学法探讨

计算机制图是新时代发展的产物,在建筑工程制图教学中,把CAD制图融入传统手工绘图的过程中,使学生在学习基本制图规范的同时,熟悉CAD的基本操作命令与方法,在练习CAD过程中掌握投影理论,激发学习兴趣,提高教学效果。     

现代化教学手段在机械制图课教学中的应用

各种现代化教学手段在教学中扮演着越来越重要的角色,而各种多媒体技术应用于机械制图学科教学更具有积极意义。针对中等职业教育的机械专业机械制图课程,对如何将现代化教学手段应用于学科教学进行初步的研究探讨。     

压边力对消除后围板拉深成形缺陷的研究

针对拖拉机覆盖件尺寸大、厚度薄、表面质量要求高,加工工序繁多,加工过程中易产生的起皱、破裂、减薄等质量问题的特点,以典型的拖拉机后围板为例,使用DYNAFORM软件模拟不同压边力的拉深过程,对成形极限图（FLD）和材料厚度图进行分析发现：调整压边力可以消除后围板拉深成形中易出现的起皱和破裂问题。用此法能显著加快模具设计的进程,并为模具数字化设计提供借鉴。