Emergency Response Systems and the Creeping Legibility of People and Places

Over the last 35 years, centralized universal-number (in the United States, 9-1-1) systems have come to be the preferred means of emergency-response dispatching. The creation of these systems has motivated the development of information systems that render the landscape, to those with the right access, increasingly legible. This has been to the benefit of those receiving emergency services, but also to the benefit of police and commercial interests, who have used the improved infrastructure as bases for the creation of geodemographic and other profiling systems. More recently, the creation of wireless telephony has motivated the creation of a further surveillance infrastructure built on and integrated into that landscape. One consequence has been the commercialization of the systems in ways that permit the incorporation of more intimate and detailed data into preexisting systems. Public concern with locational surveillance systems has focused on privacy. However, “privacy” may be an inadequate frame through which to understand these issues and to fashion appropriate responses.     

Serum Paraoxonase (PON1) Activity in North-West Indian Punjabi’s with Acute Myocardial Infarction

Human serum paraoxonase-1 (PON1), an enzyme on HDL prevents oxidation of LDL thereby preventing the development of atherosclerosis. Studies done so far have lead to conflicting results. As studies are lacking in North-West Indian Punjabi’s, a distinct ethnic group with high incidence of coronary artery disease, we determined PONase activity in this population. It has been postulated that sudden lowering of serum PONase may lead to precipitation of acute myocardial infarction. We determined serum PONase activity and lipids in 100 patients each of AMI (within 24 h of onset), stable CAD and 100 age and sex matched healthy controls. These were again determined after 6 weeks in AMI patients. The mean serum PONase activity was lowest in AMI patients (23.26 U/ml) followed by stable CAD patients (102.0 U/ml) where as in controls was highest (179.8 U/ml). In patients with AMI, activity was significantly higher at 6 weeks as compared to that after acute event (49.39 %; p < 0.05). Sudden lowering of serum PONase activity in a population which already has lower activity may be one of the risk factors for development of AMI.     

Brn＋1 filiform李代数的左对称代数结构

Brn＋1 filiform李代数是一类重要的filiform李代数,其对rigid李代数的分类起到了重要作用.本文通过求得Brn＋1 filiform李代数的极大环面证明了filiform李代数具有左对称代数结构.     

运动对骨骼肌线粒体生物合成调节因子影响进展研究

运动激活细胞信号诱导线粒体生物合成,不仅可以有效地增加线粒体体积、提高ATP供能能力和延缓运动性疲劳发生,还可预防与年龄相关的退行性改变而导致肌肉功能下降。随年龄增长且运动时间减少,线粒体通道受损导致有氧功能减退和细胞凋亡趋势增加可导致肌肉功能下降。通过选择合适的运动方式,能改善这种代谢功能障碍,维持肌肉质量。     

Effects of aerobic training on serum omentin-1 and cardiometabolic risk factors in overweight and obese men

Abstract

Omentin-1 is a newly discovered protein expressed and secreted from visceral adipose tissue that increases insulin sensitivity. We examined the effects of 12 weeks of aerobic training on serum omentin-1 concentrations together with cardiovascular risk factors in overweight and obese men. Eighteen overweight and obese participants (age 43.1 ± 4.7 years, BMI ≥25 kg · m^?2) were assigned to exercise training (n = 9) and control (n = 9) groups. A matched control group of normal weight participants (n = 8; age 42.2 ± 3.8 years, BMI <25 kg · m^?2) were also recruited for baseline comparison. The obese exercise group participated in 12 weeks of progressive aerobic training 5 days a week. Measures of serum omentin-1, insulin resistance, lipid profiles, blood pressure, and body composition were obtained before and after the 12 weeks. At baseline, normal weight participants had significantly higher serum omentin-1 concentrations than overweight and obese participants, and there were inverse correlations between omentin-1 and each of waist circumference, fasting glucose, insulin resistance, total cholesterol, triglyceride, and systolic blood pressure (P < 0.05). After the aerobic training, waist circumference, percent body fat, fasting glucose, insulin resistance, triglyceride, total cholesterol, low-density lipoprotein cholesterol, and systolic blood pressure were all significantly decreased (P < 0.05). In contrast, serum omentin-1 concentration was significantly increased after the aerobic programme (P < 0.05), and correlated with changes in insulin resistance (r = ?0.67, P = 0.04), glucose (r = ?0.65, P = 0.05), waist circumference (r = ?0.70, P = 0.03), and aerobic fitness r = ?0.68, P = 0.04). Aerobic training resulted in an improvement in cardiometabolic risk factors in obese participants, and this improvement was accompanied by increased omentin-1 concentrations.     

Methods matter: Improving causal inference in educational and social science research: A review article

Professors Richard J. Murnane and John B. Willett set out to capitalize on recent developments in education data and methodology by attempting to answer the following questions: How can new methods and data be applied most effectively in educational and social science research? What kinds of research designs are most appropriate? What kinds of data are needed? What statistical methods are best used to process these data, and how can results be interpreted so that policymakers are best informed? In this review we summarize main contributions of the book, assess the unique value-added of the text, and discuss the usability of it to various potential audiences.     

特征映射型N1+N2概念合成名词之识解——非范畴化与空间复合视角

特征映射型N1+N2概念合成名词中的N1是起描写作用的修饰词,凸显的是陈述性意义即性质意义;而其中心词N2是提供整个词范畴结构的词,构成整个词的认知基础。该构式所体现的思维、语义与句法关系的创造性和灵活性是极其丰富的。空间复合理论为自然语言现象的解释提供了很好的处理方法,而非范畴化不但是语言变化与发展的重要途径,更是人类认知的一种重要方式。因此,将空间复合理论与非范畴化结合,对特征映射型N1+N2概念合成名词的识解具有良好的解释力,也具有良好的操作性。     

英语专业学生作文中的搭配错误探析

搭配历来受到语言学家的重视,也是当前研究的热点之一。但对把英语作为外语来学习的中国学生而言,则很难掌握。因此,运用定量和定性的方法对学生英语作文中的搭配错误进行实证性研究是非常必要的。研究结果表明,学生作文中的搭配错误占相当大的比例,学生对搭配掌握得还不够理想。在对导致搭配错误的原因进行分析并得出结论,搭配错误主要受母语负迁移、目的语规则的泛化和忽视、训练迁移、使用不当的交际策略等因素的影响。     

Learning from the Learners: Preparing Future Teachers to Leverage the Benefits of Laptop Computers

Technology is changing the teaching and learning landscape. Teacher preparation programs must produce teachers who have new skills and strategies to leverage the benefits of laptop computers in their classrooms. This study used a phenomenological strategy to explain first-year college students' perceptions of the effects of a 1:1 laptop experience on their readiness for college and the uses of technology for instructional purposes by high school teachers. Participants in the study had experienced a 1:1 laptop initiative for two or more years while in high school. The study included interviews with 15 participants from two different countries and five different high schools. Recommendations from student voices in this study call for teacher preparedness beyond the levels of traditional teacher preparation curriculum. Teacher preparation programs and ongoing professional development need to embed curriculum with practical applications of technology integration for teachers so that they are truly classroom ready to leverage the computers that students come to class expecting to use.     

不同桑品种生化指标与养蚕效率的相关性研究

以湖桑32号桑品种为对照,于2009—2011年,对四川省凉山州不同桑树品种嘉陵20号、南叶1号、云桑2号进行了连续3年的桑叶主要生化指标与养蚕饲育效率的相关性研究。研究表明：以桑品种嘉陵20号粗蛋白含量最高,养蚕饲育效率最好;云桑2号和南叶1号桑品种的粗蛋白含量差异不大,饲育效率也较为接近,参试品种的粗蛋白含量和饲育效率明显高于对照。研究还表明,不同品种桑叶中粗蛋白的含量与养蚕的饲育效率呈明显的正相关关系。