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计算机类专业中,《概率论与数理统计》课程是重要的专业基础课程。通过分析目前课程的教学现状,从课程内容选择、案例教学的引入、实验教学的设计以及考核方式的改变等四个方面开展课程改革,是提高教学效果的良好途径。 相似文献
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BackgroundPrior researches have implicated a relationship of recidivism with childhood trauma (CT) and emotional intelligence (EI). However, the internal mechanism by which CT and EI influence the recidivism has not been examined.ObjectiveThis study aimed to map the road from CT and EI to recidivism in Chinese male offenders.Participants and settingThree thousand one hundred and eighty-one Chinese adult male offenders participated in this study and completed Childhood Trauma Questionnaire (CTQ) and Wong Law Emotional Intelligence Scale (WLEIS). Recidivism was quantified by the number of convictions according to official records.MethodsAfter controlling for age, education levels, family criminal history, and nature of offence, logistic regression sanalysis was performed to examine the effects of CT and EI on severity of recidivism. Structural Equation Modeling (SEM) was applied to explore the mediation model between CT, EI and recidivism.ResultsLogistic regression model shows a significant effect of CT (OR = 1.008, p < 0.01), rather than EI, on recidivism. SEM supported a full mediating effect of CT in the relationship between EI and severity of recidivism.ConclusionsOur findings suggest that EI has no direct effect on the recidivism, but exerts indirect influence on the recidivism through the mediating role of childhood trauma. 相似文献
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澳大利亚华文文学对焦虑的书写主要存在于两个方面:一是物质层面上的;二是精神层面上的。前者是表层意义上的,基于生存的需要;后者是深层意义上的,关乎文化的融通问题。物质与精神的双重焦虑左右着新移民的言行,影响着他们的精神状态。 相似文献
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从个性化教育出发，研究将个性化技术应用于英语培训教学上。首先，介绍了培训资源的本体特征和特征描述的表示，接着阐明了基于聚类事务的用户特征聚合的个性化技术。最后，建立一个个性化英语培训系统，描述了系统的信息流程，资料控制器功能结构和系统实现的软件构架。 相似文献
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丁霞 《南昌教育学院学报》2011,26(6):1-3
哈贝马斯并不是停留于简单的＂接着＂法兰克福学派的技术理性分析逻辑视角,而是在对技术理性批判的同时,对这种批判理论自身的合法性进行了更深层次的论证,不仅提出了批判理论的合法性问题,而且也提出了基于合法性基础上的正当性问题。哈氏的理论显示出了与该学派的老一代理论家之间的理论张力,强调进行社会批判之前先要反思批判理论自身。 相似文献
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Sirtuins(SIRTs)是依赖于烟酰胺腺嘌呤二核苷酸辅酶(nicotinamide adenine dinucleo-tide,NAD+)的去乙酰化酶。除了对染色质组蛋白赖氨酸残基去乙酰化实现对基因的表观遗传修饰外,SIRT1可以调节多种关键转录调节因子及辅因子活性。SIRTs所介导的生理过程包括控制氧化应激响应、能量内稳态控制和运动代谢适应等。体育活动对代谢性疾病的预防或对衰老的延缓可能与SIRTs活性密切相关。多种运动训练方式和补充SIRTs小分子活性物质都能提高骨骼肌、脂肪、心肌和脑等脏器的SIRTs活性,提升机体抗疲劳及能量代谢适应的能力。SIRTs可能是表征功能内稳态的潜在标志物。 相似文献
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《International Journal of Educational Research》2003,39(3):293-309
In the context of the UN Literacy Decade (declared in February 2003), the present paper suggests three parameters that should be considered when new tools for assessment are considered in less developed countries (LDCs), each of which poses a special challenge to international comparative literacy assessment, such as in the International Adult Literacy Survey (IALS):
- •Smaller: Assessment methods do not need to be major entrepreneurial enterprises, but rather just robust enough to answer key policy questions at the national and local levels. International comparative studies often run counter to this perspective.
- •Quicker: Literacy assessments need to be completed in ‘real time’ so that results can affect policy and spending in the ‘lifetime’ of current ministerial appointments. Studies that take 3–5 years to generate results, even if robust, nonetheless fail to meet the test of timeliness.
- •Cheaper: LDCs cannot afford either the fiscal or human resources costs of deep involvement in highly technical assessment exercises. The higher the cost, the more difficult to get to an initial ‘yes’ to participate in such an exercise, and the more difficult to gather time-series data to follow policy decisions.
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论文的统计学质量是学术期刊质量控制的重中之重.本文介绍几种常用统计学检验方法的规则,结合案例分析,分享《新医学》在文章统计学质量把关方面的经验:1)t检验和秩和检验中丨t丨或者|Z|若＜1.96,对应的P值必然＞0.05,且在相同样本量的情况下,丨t丨或者|Z|越大,P值越小.2)四格表的卡方检验,x2值若＜3.84,则对应的P值＞0.05;在样本量相同时,x2值越大,P值越小.3)logistic回归分析或Cox生存分析中,自然对数的底(e)的回归系数(B)次方,即exp(B),必须等于Ro或RH值;Ro或RH值的95％CI的下限=exp(B-1.96Es),95％CI 的上限=exp(B+1.96Ea);且 RO或RH 值的95％CI如果包含1,对应的P值必然＞0.05;Ro或RH值的95％CI必然包含Ro或RH值exp(B).编辑人员应掌握基本统计知识,并增强与作者的沟通,刊发文章应有多次统计审稿,并要求作者提供具体的统计值.通过上述规则和经验,希望帮助科技期刊编辑初步筛查可能存在统计结果错误的文章,以避免刊出因统计问题所致的结果造假类学术不端论文. 相似文献
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不当署名问题已成为科技期刊撤稿最常见的原因之一.为了提高科技期刊编辑对不当署名的防范意识,本文依据《学术出版规范 期刊学术不端行为界定》,将不当署名学术不端行为分为5大方面,包括对论文所涉及的研究有实质性贡献的人排除在作者名单外,未对论文所涉及的研究有实质性贡献的人在论文中署名,未经他人同意擅自将其列入作者名单,作者排序与其对论文的实际贡献不符,提供虚假的作者职称、单位、学历、研究经历等信息.列举典型案例并对案例内容进行详细分析,界定其中的学术不端行为,并提出防范或解决方法. 相似文献
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Chai-Hong Yeong Mu-hua Cheng Kwan-Hoong Ng 《Journal of Zhejiang University. Science. B》2014,15(10):845-863
The potential use of radionuclides in therapy has been recognized for many decades. A number of radionuclides, such as iodine-131 (131I), phosphorous-32 (32P), strontium-90 (90Sr), and yttrium-90 (90Y), have been used successfully for the treatment of many benign and malignant disorders. Recently, the rapid growth of this branch of nuclear medicine has been stimulated by the introduction of a number of new radionuclides and radiopharmaceuticals for the treatment of metastatic bone pain and neuroendocrine and other malignant or non-malignant tumours. Today, the field of radionuclide therapy is enjoying an exciting phase and is poised for greater growth and development in the coming years. For example, in Asia, the high prevalence of thyroid and liver diseases has prompted many novel developments and clinical trials using targeted radionuclide therapy. This paper reviews the characteristics and clinical applications of the commonly available therapeutic radionuclides, as well as the problems and issues involved in translating novel radionuclides into clinical therapies. 相似文献