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361.
对手术后患者的观察和处理是疾病外科治疗过程中的重要环节之一。本文从妇科肿瘤手术后患者面临的四大主要问题(术后出血、术后感染、特殊外科并发症的出现和内科合并症的加重)入手,对上述问题的临床特点、早期征兆、出现规律、观察指标和相应辅助检查进行总结,并简要指出处理原则,目的是帮助青年医师形成有逻辑的术后观察思维。  相似文献   
362.
This study examined children’s tendency to confuse events that varied in source similarity, which was manipulated using different media of event presentation. In Experiment 1, children in two age groups (3- and 4-year-olds and 5- and 6-year-olds) experienced a live presentation of an event, and another event was either heard from a story (low similarity group) or seen on a video (high similarity group). Immediately afterward, the children were asked to monitor the source of the events. The children in the low similarity group produced higher source discrimination scores than did the children in the high similarity group. Overall, the older children were better at source monitoring than were the younger children. In Experiment 2, the procedure was replicated except that the children’s source monitoring was tested after a 4-day delay. When attributing the source of the story or video events, both 3- and 4-year-olds and 5- and 6-year-olds in the low similarity group produced more accurate story or video attributions than did their age mates in the high similarity group. However, when attributing the source of the live events, only the 3- and 4-year-olds evidenced this effect of source similarity. The 5- and 6-year-olds in both the low and high similarity groups performed at ceiling levels for live discriminations.  相似文献   
363.
During testing, students have a valuable opportunity to exercise and improve their self-regulatory skills. However, the extent to which they profit from those experiences may vary according to some personal, test-related, and environmental factors. This study investigated the effects of metacognitive skills and test types on students' test performances, confidence judgments, and on the accuracy of those judgments. A sample of 129 psychology undergraduate students (50 men and 79 women, mean age = 18.9 years) were categorized according to their metacognitive skills (high vs average vs low) and had their test performances and monitoring processes in two different types of tests (i.e., multiple-choice and short-answer tests) compared throughout one academic term. Their test preparation practices, along with their attributional and regulatory processes during test-taking, were also compared by using open-ended questions. The results showed that: (1) high-metacognitive students presented more effective test preparation practices, better test performances, and superior attributional, regulatory, and monitoring processes than their counterparts; (2) differences in performance and judgment accuracy were significantly larger in the short-answer tests than in the multiple-choice tests; and (3) over time, students' performances and confidence levels varied in specific patterns according to the type of test being taken. The results are discussed, focusing on the educational implications of the interactions observed and on how they may determine what students can learn from test-taking experiences. In addition, based on the results obtained, specific suggestions on how to increase the metacognitive awareness of university students through instruction and on how to improve their academic assessment are provided.  相似文献   
364.
心理负荷对元记忆监测准确性及偏差的影响   总被引:1,自引:0,他引:1       下载免费PDF全文
以汉字再认任务为载体, 采用两因素被试内设计, 考察任务所导致的心理负荷水平, 以及学习判断(JOL)和信心判断(JOC)两种监测方式, 对元记忆监测效果的影响。对监测效果的衡量分别使用了相对准确性, 绝对准确性, 以及判断偏差三种指标。结果发现, 个体在任务过程中的心理负荷水平会影响其对任务解决过程的监测准确性:心理负荷水平越高, 元记忆监测的准确性越低。心理负荷水平还会影响元记忆监测的判断偏差:心理负荷处于中等偏低水平时, 监测不容易出现偏差;心理负荷处于中等偏高水平时, 个体表现出过高自信;但当心理负荷达到较高水平后, 判断偏差消失;随着心理负荷水平继续增大, 个体又表现出过低自信。  相似文献   
365.
从SARS到EV71:国外传染病疫情监测预警经验及其启示   总被引:5,自引:0,他引:5  
英国、美国和法国在传染病疫情监测预警方面积累了丰富的经验,本文从不同角度简要介绍了这三个国家的传染病监测经验,并从疫情监测形式、检验检测水平、专业人员能力、疫情信息报告等方面分析了我国疫情监测预警系统存在的问题和差距,最后针对性地提出了一些政策建议。  相似文献   
366.
这项研究在元记忆监控环境下考查真实教学情景中学习者对外语语音信息加工的实际效果。结果表明:在外文单词听觉再认与外文单词听觉再现测验中,无论是及时测验还是延时测验,实验组的成绩都明显高于控制组,元记忆训练对外语语音信息的加工是有影响的。  相似文献   
367.
Metacomprehension: A Brief History and How to Improve Its Accuracy   总被引:2,自引:0,他引:2  
ABSTRACT— People's judgments about how well they have learned and comprehended text materials can be important for effectively regulating learning, but only if those judgments are accurate. Over two decades of research examining judgments of text learning—or metacomprehension —has consistently demonstrated that people's judgment accuracy is quite poor. We review recent research that has shown some success in improving judgment accuracy and then argue that the most common method used to investigate metacomprehension accuracy may inadvertently constrain it. We describe a new method that sidesteps some problems of the older method and present evidence showing how people can achieve high levels of metacomprehension accuracy.  相似文献   
368.
PiCCO与Swan—Ganz导管监测的比较与思考   总被引:2,自引:0,他引:2  
在工程技术的推动下,Swan-Ganz导管监测和PiCCO先后产生并应用于有创血流动力学监测。通过对比两者的操作性能、监测指标、并发症及费用等方面,展示PiCCO的优越性及安全性,思考现代医疗活动中的社会价值和人文体现,从科技发展方向和医学价值回归的角度分析临床决策,为广大临床工作者提供借鉴。  相似文献   
369.
辅助生殖技术(Assisted Reproduction Technique,ART)的飞速发展给社会带来了复杂的伦理难题。实践证明,只有发挥伦理委员会作为一个工作机构的职能,在医患人群中加强ART技术基本原理及相关伦理原则的宣传教育,才能促使医患人群都能够自觉遵守优良的医学伦理道德规范,保证人类辅助生殖技术的健康发展。  相似文献   
370.
A bicycle helmet program was evaluated in three middle schools using a multiple baseline across schools design. Two of the three schools had histories of enforcement of helmet use. During baseline many students riding their bikes to and from school did not wear their helmets or wore them incorrectly. A program that consisted of peer data collection of correct helmet use, education on how to wear a bicycle helmet correctly, peer goal setting, public posting of the percentage of correct helmet use, and shared reinforcers, all of which were implemented by the school resource officer, increased afternoon helmet use and afternoon correct helmet use in all three schools. Probe data collected a distance from all three schools indicated that students did not remove their helmets once they were no longer in close proximity to the school, and probe data collected in the morning at two of the schools showed that the behavior change transferred to the morning.  相似文献   
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