The Roles of Parental Support and Family Stress in Adolescent Sleep

The current study examines the association between parental support and adolescent sleep under varying levels of family stress. Participants included 316 adolescents (M_age = 16.40 years, 43% male) and their parents (M_age = 45.67 years, 91% mothers) from diverse ethnic backgrounds. Both adolescents and parents completed questionnaires and adolescents wore wrist actigraphs and completed self‐reports on their sleep for 7 consecutive days. Results indicated that under contexts of family stress, more parental support was linked to longer sleep duration, less sleep variability, and less time spent awake during the night. Findings suggest that under contexts of family stress, cohesive family relationships may provide a sense of stability and security that is necessary for healthful sleep.     

谈《传声器与扬声器》多媒体课件的设计

通过对电声器课件进行教学设计,确立课件开发的指导思想,从而保证了课件的教学性和科学性;通过对传声器和扬声器进行具体的讯息设计,研究信息呈现和交互的方法,从而保证了课件的技术性和艺术性.     

The impact of reading at rapid rates on inference generation

Aims

Speed reading is advertised as a way to increase reading speed without any loss in comprehension. However, research on speed reading has indicated that comprehension suffers as reading speed increases. We were specifically interested in how processes of inference generation were affected by speed reading.

Methods

We examined how reading speed influenced inference generation in typical readers, trained speed readers and participants trained to skim read passages. Passages either strongly or weakly promoted a bridging or predictive inference. After reading, participants performed a lexical decision task on either a nonword, neutral or inference‐related word.

Results

Typical readers responded to strong and weak inference words faster than neutral words. There were no statistical differences in reaction time between inference‐related and neutral words for speed and skim readers.

Conclusions

These findings provide no substantive evidence that the appropriate inferences are generated when reading at rapid speeds. Thus, speed reading may be detrimental to normal integrative comprehension processes.     

Pedagogical and technological augmentation of mobile learning for young children interactive learning environments

The ubiquity and educational potential of mobile applications are well acknowledged. This paper proposes six theory-based, pedagogical strategies to guide interaction design of mobile apps for young children. Also, to augment the capabilities of mobile devices, we used a humanoid robot integrated with a smartphone and developed an English-learning app that applied the design strategies to this environment. Our observations of children's one-on-one use support the promise of the strategies and the combined use of robots and mobile devices to be a viable option to help optimize mobile learning.     

对建筑力学教学内容改革的几点体会

根据目前高等教育中建筑力学课程的课时压缩情况 ,介绍作者对建筑力学教学内容改革的几点体会     

Successive reversals of a discriminated preference for signaled tailshock

Three rats received unmodifiable tailshock at random intervals in a shuttlebox. In a continuous-choice situation, Ss could choose between an auditory signal immediately preceding or immediately following the tailshock. Over repeated daily 3-h sessions, each S acquired a spatial discrimination indicating a strong preference for the signal preceding tailshock. This preference continued undiminished through two successive reversals of the position associated with signaled shock. This demonstration precludes explanations of the preference-for-signaled-shock phenomenon based upon primary reinforcement value or acquired value of the signal, position preferences, and overt modification of the aversiveness of the reinforcer through such means as postural adjustments. An explanation of recent failures to obtain the preference-for-signaled-shock effect is offered.     

Wolstenholme定理的进一步推广

本文在文[2]的基础上将Wolstenhome定理作了进一步的推广     

谈高校动态电子学籍档案的建立

本文系统阐述建立动态电子学籍档案能提高学籍档案的管理效率、检索速度和查准率,充分发挥学籍档案的信息功能,学籍档案数字化是档案信息上网的基础,建立动态电子学籍档案是建设数字化档案馆的一种探索,对其他各门类档案的数字化也具有一定的借鉴作用。     

现代远程教育模式下计算机基础教学探讨

现代远程教育是建立在网络环境下的多种媒体教学资源综合应用、多种教学手段相互补充、学生自主学习、以教师导学为辅的教学模式。远程教育打破了传统教育的时空限制、地域限制,使学习者可以按照自己的学习计划在网上学习,能更充分地利用教育资源,使优秀学校、优秀教师、优秀课程能为全社会的学习者所共享。