平谱射电类星体3C 454.3射电谱指数的演化研究     

蒋思涵  周晓珊  彭坤 《科教文汇》2015,(18)

从各类文献和资料中搜集到平谱射电类星体3C 454.3在射电22GHz和37GHz波段25年来的观测数据。我对这两个波段的时间和流强进行了处理和分析,得到了相应的谱指数,并分析讨论了流强和时间,谱指数和时间,谱指数和流强之间的关系,发现它们之间存在着一定的相关性。  相似文献   

基于关键点的小波提取时间序列近似表示方法     

韩波  章荣丽  鱼先锋 《商洛学院学报》2015,(4)

为了克服常见的时间序列近似表示方法参数精确控制不准确而带来的源序列数据表示减损问题,提出一种基于关键点技术的小波变换分解近似表示方法。来自于不同时间序列的仿真实验表明:相比已有的近似表示方法,它保留了原有表示方法的尺度近似系数,摆脱了用户对参数的精确操作控制,在保留住了时序数据的主要特征的同时还极大地实现了时序数据维度的有效约简。  相似文献   

An efficient method of addressing ectopic beats: new insight into data preprocessing of heart rate variability analysis     

Wen F  He FT 《Journal of Zhejiang University. Science. B》2011,12(12):976-982

Heart rate variability (HRV) analysis is affected by ectopic beats. An efficient method was proposed to deal with the ectopic beats. The method was based on trend correlation of the heart timing signal. Predictor of R-R interval (RRI) value at ectopic beat time was constructed by the weight calculation and the slope estimation of preceding normal RRI. The type of ectopic beat was detected and replaced by the predictor of RRI. The performance of the simulated signal after ectopic correction was tested by the standard value using power spectrum density (PSD) estimation, whereas the results of clinical data with ectopic beats were compared with the adjacent ectopic-free data. The result showed the frequency indexes after ectopy corrected had less error than other methods with the test of simulated signal and clinical data. It indicated our method could improve the PSD estimation in HRV analysis. The method had advantages of high accuracy and real time properties to recover the sinus node modulation.  相似文献   

高校校报品牌形象规划模型的构建     

陈楚瑞 《韩山师范学院学报》2015,(2):103-108

根据品牌形象的概念要素,结合高校校报的性质特征,从高校校报品牌形象的理念识别系统、行为识别系统、视觉识别系统、人员识别系统四个维度进行了分析,并针对高校校报存在的定位、印象和外部视角等品牌陷阱,通过陈述品牌形象定位、制定和执行传播计划、监测评估效果三个步骤构建高校校报品牌形象规划模型,以促进高校校报编辑出版工作。  相似文献   

论中国少数民族服饰中蕴含的图腾文化     

曲义 《蒙自师范高等专科学校学报》2015,(4):14-15

针对我国少数民族服饰中的图腾文化,介绍了图腾文化的源流,论述了图腾在服饰上的物态化体现及常见的物态化手段,分析了服饰图腾的缤纷化特征,以及在不同民族和相同民族的不同支系两个层面上的含义,并以动物图腾中常见的老虎、公牛、神鹰、犬、蛇和青蛙为例,归纳了常见共用图腾纹样及其共有民族,总结出服饰图腾纹样的广谱化特征。  相似文献   

Social Story™ interventions for decreasing challenging behaviours: a single-case meta-analysis 1995–2012     

Ryan J. McGill  Diana Baker  R.T. Busse 《Educational Psychology in Practice》2015,31(1):21-42

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法律维度下的汉冶萍公司兴衰检视     

曾哲  肖进中 《黄石理工学院学报(人文社科版)》2015,(3)

汉冶萍公司是近代中国洋务运动的产物,曾被誉为亚洲第一雄厂,代表着一代精英实业救国的梦想。但时值国家民智未开,国民严重缺乏理性的财产权观念,再加上其深处封建生产关系的泥沼,本身又得不到来自宪法授权的国家权力的强有力保护,因而在历次对外贸易中饱受日本帝国主义势力的盘剥与压榨,继而走向衰亡。用法律的理性思维来检视汉冶萍公司的兴衰过程,可折射出一幅近代中国身处逆境仍挣扎图强的图景,同时也为今天中国的法治建设提供了若干启示。  相似文献   

Do labels matter? Analysis of teachers' self-efficacy towards the autism spectrum disorder depending on the diagnostic label used (ASD or Asperger's)     

Irene Gómez-Marí  Gemma Pastor-Cerezuela  Irene Lacruz-Pérez  Raúl Tárraga-Mínguez 《Journal of Research in Special Educational Needs》2023,23(2):126-135

Changes in the classification of autism and Asperger's syndrome led to changes in social perception of ASD. Since last criteria, studies indicate higher levels of stigma towards ASD than towards Asperger's. These prejudices are barriers to inclusive education. Thus, it is relevant (1) to evaluate pre-service teachers' self-efficacy towards the label of ASD; (2) to evaluate pre-service teachers' self-efficacy towards the label of Asperger's and (3) to compare those results to analyse whether the use of different diagnostic labels brings about different levels of self-efficacy. One hundred and eighty-six primary education pre-service teachers participated in the current study. Two adaptations of the Autism Self-Efficacy Scale for Teachers (ASSET) were used: a version with the label of ‘ASD’ (n = 96) and another for ‘Asperger's’ (n = 90). The scores obtained by the group asked about ASD were high according to the ASSET score range, while the scores obtained by the group asked about Asperger's were medium. After comparing the results, participants asked about the label ASD showed higher levels of self-efficacy than participants asked about Asperger's. These results could be a consequence of the consolidation of the ASD diagnosis among society and the higher presence of children with ASD in schools and cultural products, among other factors.  相似文献   

Supporting emotion regulation in individuals with ASD,ADHD and bipolar disorder through trauma-informed instruction and self-regulation strategies     

Lauren A. Delisio  Diane Casale-Giannola  Caitlyn A. Bukaty 《Journal of Research in Special Educational Needs》2023,23(2):136-146

Since the beginning of the COVID-19 pandemic, students have endured drastic changes in educational routines. Such disruptions can be especially challenging for students who struggle with executive functioning, self-regulation and emotion regulation, such as students with autism spectrum disorder (ASD), attention deficit hyperactivity disorder (ADHD) and bipolar disorder. Using a framework of trauma-informed instruction, the authors supported classroom teachers in implementing sensory spaces for students with ASD, ADHD and bipolar disorder. The project included professional development and funding for teachers to develop, procure and offer sensory tools and strategies to assist students in recognising and managing emotions. The authors collected data on the effectiveness of the sensory supports, combining teacher surveys and student behaviour data. Results indicated increased teacher knowledge on trauma-informed instruction and use of sensory supports to promote executive functioning and self-regulation and decreased target behaviours in students based on structured observation and anecdotal teacher feedback.  相似文献   

Teachers of learners with ASD in mainstream schools and classrooms in Spain: attitudes towards inclusive education     

Yolanda Muñoz Martínez  Cecilia Simón Rueda  Mª José de Dios Pérez 《British Journal of Special Education》2023,50(1):104-126

This study analyses the attitudes of teachers in Spain towards the inclusion of learners with autism spectrum disorder in mainstream education settings and their relationship with the perceived benefits of inclusion. The ex post facto prospective design included 180 teachers from 14 schools. Data were collected using a questionnaire on teachers' attitudes towards inclusive education and a second questionnaire on the benefits of inclusion developed for the specific purposes of this study. The results show teachers' positive attitudes towards inclusion as well as the benefits perceived. This study demonstrates the fundamental role of teachers' previous experience. Implications for inclusive cultures and practices in schools are discussed.  相似文献