聚2.6—萘二甲酸乙二酯的结晶行为

用光学解偏振法测定了2.6—PEN的结晶速度的温度依赖性,得出其快结晶速度区域是在180℃至230℃之间,而在低于180℃或高于230℃的温度区域,结晶速度都是慢的。测定了不同结晶度试样的动态力学—温度谱,用以研究其结晶行为,得出α损耗峰随结晶度的变化。此外,将上述各实验结果与同法测定的PET的结果进行了对比,发现2.6～PEN与PET的结晶行为的相似性。     

Sixth graders in Israel recount their experience of verbal abuse by teachers in the classroom

AimThis study adopts a children’s rights perspective stated in Articles 3, 12, 19, 28 of the Convention on the Rights of Children (1989) with the goal of listening to Israeli children articulate their experience of verbal abuse by teachers in 6th grade classroomsMethodsA purposeful sample of sixty students was individually interviewed and content analysis was performed following Strauss’ (1987) constant comparative method.ResultsStudents reported teachers’ yelling, name-calling and put-downs when failing to pay attention, complete their work, or obtain good grades. They condemned teachers as particularly hurtful and cruel for publically humiliating them in class. However, awareness of teachers’ authority and fear of reprisal led to students’ silence and reluctance to report the abuse to their parents or principal. Covert opposition was nevertheless exhibited as students engaged in a silent monologue telling teachers they had no right to mistreat them (females), silently cursing (males) and/or withdrawing participation (both genders). Repeated public humiliation and scapegoating resulted in the loss of interest in teacher’s opinion and school and on rare occasions to the direct verbal confrontation or acting-out behaviour of the abused student.ConclusionThis study stresses the importance of gaining insight into the world of children by having them articulate their experience and denounce any form of abuse by teachers in the classroom. A child-safe school culture that listen to children’s view and make them feel safe when reporting any form of abuse in the classroom are preconditions to serving children’s best interests and wellbeing in schools.     

基于Cisco7603路由器实现IPv4/IPv6高校网络

分析了IPv4/IPv6三种过渡技术：隧道技术、双协议栈技术、翻译技术（NAT-PT）,给出高校网络的IPv6升级方案,重点讲述了基于Cisco 7603的IPv6路由技术和IPv6的安装、配置方法。     

Tumor Necrosis Factor-Α, Interleukin-6, C-Reactive Protein Levels and Insulin Resistance Associated with Type 2 Diabetes in Abdominal Obesity Women

We aim to investigate the association between elevated tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6) and high sensitivity-C-reactive protein (hs-CRP) with type 2 diabetes mellitus (T2DM) in abdominal obesity (AO) women subjects. A total of 428 AO subjects (age 48.4 ± 10.2 years), and 107 non-AO women subjects (age 48.8 ± 11.8 years) were enrolled for the all biochemistry testing, inflammatory cytokines, fasting insulin and Homeostasis Model Assessment of insulin resistance (HOMA-IR). Body mass index, waist circumference (WC), blood pressure (BP), plasma glucose (Glu), triglyceride (TG), insulin, HOMA-IR and inflammatory cytokines were significantly higher and lower total antioxidant capacity, HDL-C in AO subjects (p < 0.05). WC was significantly correlated with BP, Glu, TG, LDL-C, insulin, HOMA-IR, TNF-α, IL-6 and negative correlation with HDL-C in AO subjects. Elevation of TNF-α, IL-6, hs-CRP and insulin resistance were significantly associated with T2DM in AO subjects, after adjusting with insulin resistance, increased oxidative stress, elevated TG and reduced HDL-C by using multiple logistic regression analysis. In conclusions, elevation of inflammatory cytokines, oxidative stress and insulin resistance were associated with T2DM in AO women subjects. These inflammatory cytokines are positively associated with T2DM and may have a causal relation with an increased oxidative stress and insulin resistance in these AO women subjects.     

锂同位素在气溶胶特性示踪研究中的应用

以热表面电离质谱计为分析手段，采用6Li稳定同位素示踪了爆炸过程中放射性气溶胶粒子悬浮、沉积和在毛细管中扩散行为。实验结果表明：爆炸后100h，气溶胶粒子悬浮份额占10-5；沉积量占绝大多数，且各部位沉积量存在明显差异；即使在无压力推动下，仍明显观察到了气溶胶粒子在毛细管中的扩散，对于d25μm×2cm 毛细管通道而言，穿透率为1.5×10-10 / h。研究结果对于正确评估放射性气溶胶粒子在爆炸过程中的行为有一定的价值。     

基于ARM Cortex-M3导航系统设计与实现

本导航系统采用ARM Cortex-M3内核结构的低功耗、高性能嵌入式芯片STM32F207VGT6作为主控制器,可以接受和处理GPS信号;采用触摸屏提供良好的操作界面,并能针对目标位置提供图片与文字介绍。整个系统以低成本的方式实现,可以用于导航,还能提供相关的地理信息服务。     

《尚义街六号》的意识形态

论文从区别朦胧诗和《尚义街六号》中“今天”观念的不同着手,讨论于坚的“文革经验”和“知识构成”形塑了《尚义街六号》的意识形态,并提出了“第三代诗歌”与“朦胧诗”平行构成新诗潮起源的观点。     

认识和把握社会主义和谐社会的深刻内涵及其理论价值——学习党的十六届六中全会精神的体会

社会主义和谐社会是经济、政治、文化、社会协调发展,人与人、与社会、与自然整体和谐的社会,这一理论的提出是我们党对民族优秀文化的弘扬、对现实问题的正确回应、对历史经验教训的科学总结,适应了时代的潮流、人民的需要,是我国社会发展的历史必然,对我国社会主义建设与发展具有重大的理论、实践及战略意义.     

EWB仿真实验在电工学课程理论教学中的应用

介绍了在“电工学”理论课程教学中引入EWB软件实验,使理论教学与仿真验证相结合,将抽象的理论知识变成直观的感性认识.与传统的讲授方法相比较,极大地激发了学生的学习兴趣,有益于提高学生的创新意识和创新思维.     

基于Electronics Workbench 6.0的数字电子钟设计与仿真

本文介绍了ElectronicWorkbench6.0软件作为电子工作台的强大功能。并以数字电子钟的设计为例,阐述如何应用该软件进行数字电路的设计与仿真。