睡眠影响记忆巩固的研究进展

学习后睡眠有利于记忆巩固,学习的类型不同,睡眠依赖的记忆巩固机制可能也有所不同,涉及到不同脑区在不同的睡眠时相的生理功能。睡眠有助于长时程增强（long-term potentiation,LTP）的形成,进而促进记忆的巩固。总睡眠剥夺、快动眼睡眠剥夺、片段性睡眠可以通过不同的分子生物学机制损伤记忆巩固。     

"空竹"运动对老年人情绪、睡眠健康的影响

研究民族传统项目“抖空竹”对老年人心理与睡眠健康的影响,通过对参加空竹运动前后的6 0名老年人睡眠质量及情绪进行调查分析。结果显示,参加“空竹”运动后的老年人匹兹堡睡眠质量指数与运动前相比有显著性差异(P <0 .0 5 ) ;焦虑和抑郁分值显著小于运动前,且有非常显著性变化(P <0 .0 1)。由此表明,“空竹”运动能有效地改善老年人焦虑和抑郁症状,起到改善和提高老年人睡眠质量的效果,并对老年人的心理健康起到积极的作用。     

Combined effects of sleep deprivation and strenuous exercise on cognitive performances during The North Face® Ultra Trail du Mont Blanc® (UTMB®)

This study investigated the effects of combined sleep deprivation and strenuous exercise on cognitive and neurobehavioral performance among long-distance runners completing one of the most difficult ultramarathons in the world. Seventeen runners participated. Each had a wrist-worn actigraph throughout the race to record their sleep time. In addition, each individual’s performance in 10-min response-time tests before and after the race was recorded and a questionnaire enabled participants to report any difficulties they experienced during the competition. During race completion times of 27 to 44 h, combined acute lack of sleep (12 ± 17 min of rest during the race) and strenuous exercise (168.0 km) had marked adverse effects on cognitive performances ranging from mere lengthening of response time to serious symptoms such as visual hallucinations. This study suggests that regardless of rest duration and time in race, cognitive performances of ultramarathoners are adversely affected.     

性爱的剥夺与放纵——“打工文学”中的性爱与文明

研究了当代有关进城农民工性问题的文学作品，认为性爱的和谐是人类社会文明状况的表现，而作为社会弱势群体的农民工的性爱，遭受的是剥夺与放纵的两种异常待遇，“打工文学”揭示了这两种不同际遇给构建和谐社会所带来的弊端，从而引发人们对社会机制现存问题的反思。     

Logarithmic Growth Algorithm of Sleep Mode of Broadband Mobile Access Terminal

The sleep mode which works upon low arrival traffic is introduced in IEEE802.16e standard to reduce the power consumption of the mobile access terminal. Due to the rapid growth in the sleep interval in the exponential growth algorithm prescribed in IEEE802.16e, the power saving efficiency of the mobile access terminal is limited and the average delay time of receiving data frames is prolonged when the arrival rate of data frames is low. To obtain lower power consumption and shorter average delay time, the l...     

他律剥夺与个体生存意义的危机--贾平凹《怀念狼》解读

传统性与现代性的冲突是20世纪一个重要哲学母题。贾平凹在以往的商州叙事里更多表现为对现代化的质疑,对传统的回望与张扬。《怀念狼》的出现表明他在努力地改变自我既定的叙事美学模式。《怀念狼》借助一个富有传奇色彩的狩猎的故事外壳,相当细腻地揭示了在社会转型期,被他律剥夺价值的普通人群是如何陷入生存的意义危机,并发生肉体和精神变异的复杂过程,由此表现了作家对人类个体生存意义困窘和危机的深刻感悟,以及对传统与现代既肯定又反思的美学新追求。     

有氧运动对睡眠质量影响的调查分析

运用问卷调查法、数理统计法,调查、评价、分析56名高校教师有氧运动前后的情绪焦虑和睡眠质量情况.结果表明,进行有氧运动后的匹兹堡睡眠质量指数明显小于运动前(P＜0.05);进行有氧运动后高校教师的焦虑自评量表标准分均值明显小于运动前(P＜0.05).结论:有氧运动可有效缓解心理压力和焦虑情绪,调理睡眠、改善睡眠质量,是一种安全可行、积极有效的方法.     

农民工剥夺问题研究

农民工剥夺问题易引发社会冲炙,危及社会和谐,与当今我国落实以人为本的科学发展观,构建和谐社会的理念和具体部署极不相称。农民工的剥夺主要体现在经济、政治、社会三个领域。主要是由于历史上不平等的等级意识、制度中不公正的户籍屏蔽和现实中政府利益取向偏离引起的。要解决这一问题,就必须培育公民意识,构建和谐社会;创新户籍制度,落实国民待遇;转型政府职能,明晰行政权力界限。     

Gender difference in the effect of daytime sleep on declarative memory for pictures

Objective: To investigate gender difference in the effects of daytime sleep on item and source memories, which are dissociable elements of declarative memory, and the effects of sleep on recollection and familiarity, which are two processes underlying recognition. Methods: Participants saw a series of pictures with either blue or red background, and were then given a pretest for item and source memories. Then males and females respectively were randomly assigned either to a wake or a sleep condition. In the wake condition, participants remained awake until the posttest; in the sleep condition, participants slept for 1 h until awakened and asked to remain awake until the posttest. Results: Daytime sleep contributed to retention of source memory rather than item memory in females, whereas males undergoing daytime sleep had a trend towards increased familiarity. For females, however, neither recollection nor familiarity appeared to be influenced by daytime sleep. Conclusion: The mechanism underlying gender difference may be linked with different memory traces resulting from different encoding strategies, as well as with different electrophysiological changes during daytime sleep.