培养学生积极的课堂情绪探析

人总会受到情绪的干扰或激励.在实际教学过程中,学生是整个教学思维活动的主体.课堂教学中学生不是受到积极情绪的激励,就是因为存在消极情绪而影响学习的质量.将学生的课堂思维过程由被动接受改变为主动积极思考,需要从学生的课堂情绪开始做起.     

积极心理学视角下的高职生心理健康初探

积极心理学致力于研究人们积极的情绪体验、个性特征等对心理健康的影响,挖掘美德和能量。积极心理学弥补传统心理学的不足之处。文章在积极心理学视角下挖掘高职生自身的积极力量,分析了教师、校园活动、心理辅导等对高职生心理的影响,为学生心理健康工作提供参考范本。     

The rate of dissipation of mouth alcohol in alcohol positive subjects

Seven subjects participated in a two-part study to evaluate mouth alcohol dissipation in alcohol positive subjects. In part one, subjects rinsed their mouths with a vodka solution and were breath tested after 1, 2, 3, 4, and 5 min intervals. On average, breath alcohol concentration (BrAC) decreased 20.4% (range 3.2-47.9%) between 1 and 2 min after rinsing. In part two of the study, multiple breath tests were administered after rinsing once with the vodka solution. The BrAC decreased more than 0.020 g/210 L between the first and second tests for all subjects (average 0.095 g/210 L, range 0.021-0.162 g/210 L). The average time for subjects to reach their unbiased BrAC was 9.35 min (range 4-13 min) after rinsing. This study reaffirms the need for duplicate breath testing and confirms that the minimum of a 15-min observation period is sufficient for mouth alcohol to dissipate in alcohol positive subjects.     

自然法抑或实证法——理性与意志视野下的美国宪法

在看待美国宪法观念中,一种观念将美国宪法视为自然法或高级法的摹本,认为美国宪法的特征在于人类凭借理性发现和宣布了自然法或高级法;另一种观念则将美国宪法视为纯粹的人民主权的意志表达。这两种观念都存在一定的曲解:美国宪法其实和古典自然法之间存在着巨大的断裂,是一种现代自然权利体系之下的人为宪法,但这种宪法并不是未经筛选的人民意志的表达,而是理性引导之下的意志表达。美国宪法的这种特征要求当代的法律人政治家既不能神话宪法,也不能轻视宪法,而是要求将宪法视为政治科学的教材,通过理解与对话来提升理性,从而思考宪法在当代的挑战。     

大力发展健康向上的老年文化

发展健康向上的老年文化是构建和谐社会的必然要求,是尽快消除文化阳光照不到的＂盲区＂的客观要求。健康向上的老年文化是以先进文化为主导的文化,是颐养身心的健康文化,是尊老敬老的传统文化。大力发展健康向上的老年文化需要多管齐下,采取多种措施：要由老龄委牵头多部门共管,创建老年文化精品工程;建立保障老年文化服务资金的长效机制;引进市场机制,发展优秀老年文化产业;加强人才队伍建设,开展丰富多彩的老年文化活动。     

A Radiographic Study on the Utility of Cranial Vault Outlines for Positive Identifications

A standard method for positive identification is the use of antemortem and postmortem radiographic comparisons. The purpose of this research is to test the visual accuracy of antemortem and postmortem radiographic comparisons of cranial vault outlines and to evaluate their uniqueness using geometric morphometric methods. A sample of 106 individuals with varying levels of education and forensic case experience participated in a visual accuracy test. Of the 106 individuals, only 42% correctly assigned all of the radiographs, with accuracy rates ranging from 70 to 93% for each radiographic comparison. Vault shape was further examined using elliptic Fourier analysis, and paired t‐tests were computed on the first 10 principal components accounting for 100% of the variance, which found no significant differences. The visual accuracy test and elliptic Fourier analysis shows that vault outlines may not be unique enough for positive identifications when used as a sole indicator.     

Fingerprint error rate on close non‐matches

The accuracy of fingerprint identifications is critically important to the administration of criminal justice. Accuracy is challenging when two prints from different sources have many common features and few dissimilar features. Such print pairs, known as close non‐matches (CNMs), are increasingly likely to arise as ever‐growing databases are searched with greater frequency. In this study, 125 fingerprint agencies completed a mandatory proficiency test that included two pairs of CNMs. The false‐positive error rates on the two CNMs were 15.9% (17 out of 107, 95% C.I.: 9.5%, 24.2%) and 28.1% (27 out of 96, 95% C.I.: 19.4%, 38.2%), respectively. These CNM error rates are (a) inconsistent with the popular notion that fingerprint evidence is nearly infallible, and (b) larger than error rates reported in leading fingerprint studies. We conclude that, when the risk of CNMs is high, the probative value of a reported fingerprint identification may be severely diminished due to an elevated false‐positive error risk. We call for additional CNM research, including a replication and expansion of the present study using a representative selection of CNMs from database searches.     

论科学发展与社会和谐的良性互动

科学发展与社会和谐不仅在理论上是内在统一、不可分割的,而且在实践中也是相互促进、相辅相成的。党的十七大报告将科学发展和社会和谐在中国特色社会主义的伟大旗帜下有机地结合在一起,这就说明,发展中国特色社会主义,必须以推动科学发展促进社会和谐,也必须以促进社会和谐推动科学发展。着力实现科学发展与社会和谐的良性互动,必将使两者在进一步相辅相成、相互促进的过程中,共同推动中国特色社会主义建设。     

从众行为的心理探析

从众行为是人类社会普遍存在的一种现象,从众行为本身没有好坏之分。从社会学角度来说,一个社会需要有共同的语言、共同的价值观和较为一致的行为方式,这样才有利于社会功能的执行及社会文化的延续。但是不分析实际情况一味地盲从有时会给社会或个人造成不可挽回的损失。从众的原因是多方面的,从众行为具有正负效应。人们应当减少盲目从众,遇事要理性思考。     

基于重组质粒制备STR分型阳性参照物

目的基于重组质粒制备可用于校准法医STR分型的阳性参照物。方法以常用阳性参照物9948人类基因组DNA STR分型为依据,基于重组质粒构建包含CSF1PO、D7S820、TH01等40个常染色体位点,DYS391、DYS522、DYS385a/b等22个Y染色体位点以及性别判定基因座Amelogenin的STR分型阳性参照物。将重组质粒定量、稀释后等比例混合,分别应用于DNATyper~?19、DNATyper~?24、DNATyper~?Y、Amp F?STR~?Identifiler~?Plus以及Power Plex~?18D System五种扩增试剂盒。结果阳性参照物中各重组质粒浓度为0.01pg/μL~0.001pg/μL;应用于Amp F?STR~?Identifiler~?Plus PCR扩增试剂盒,基于重组质粒制备的阳性参照物与人类基因组DNA扩增检测结果差异较小;将此阳性参照物分别应用于不同公司、不同STR基因座的四种STR扩增试剂盒,电泳检测图谱显示各基因座基因型完整,分型正确,峰高相当,基因座间均衡性良好。结论基于重组质粒制备STR分型阳性参照物,是一种可以替代细胞系制备阳性参照物的方法,具有一定的参考价值。基于此方法制备的阳性参照物可适用于市面上常用的STR检验试剂盒,普适性较强,对法医DNA分型检测有一定的实用价值。