关于Diophantine方程x3-1=Dyn     

乐茂华 《Journal of Zhangzhou Technical Institute》2005,7(1):1-2

设D是无平方因子正整数.本文证明了:当D不能被形如6k 1之形素数整除时,方程,-1=Dyn仅当D=17时有正整数解(x,y,n)=(18,7,3)适合n＞2.  相似文献   

赵都邯郸故城考古发现与研究     

乔登云  乐庆森 《邯郸学院学报》2005,15(1):26-36

赵都邯郸故城是在现代考古学出现之后，才逐步被发现并得到认识的。根据原有考古资料，特别是近10多年来大量新的考古发现，进一步对战国至两汉时期赵都邯郸城的地理位置与范围、城市兴衰与变迁、城区布局与功能、陵墓分布与特点、人口数量与经济等问题作了系统地分析和研究，提出了一系列新的认识或推断。  相似文献   

关于指数Diophantine方程a~x+b~y=c~z的一个猜想     

乐茂华 《嘉应学院学报》2003,21(6):5-7

设r是大于1的奇数,m是偶数,U_r和V_r是适合的整数,证明了:当r=3(mod4),m=2(mod4),m>r/Ⅱ且c是素数方幂时,方程口。a~x+b~y=c~x仅有正整数解(x,y,z)一(2,2,r).  相似文献   

Statistical learning of action: The role of conditional probability     

Meyer M  Baldwin D 《Learning & behavior》2011,39(4):383-398

Identification of distinct units within a continuous flow of human action is fundamental to action processing. Such segmentation may rest in part on statistical learning. In a series of four experiments, we examined what types of statistics people can use to segment a continuous stream involving many brief, goal-directed action elements. The results of Experiment 1 showed no evidence for sensitivity to conditional probability, whereas Experiment 2 displayed learning based on joint probability. In Experiment 3, we demonstrated that additional exposure to the input failed to engender sensitivity to conditional probability. However, the results of Experiment 4 showed that a subset of adults—namely, those more successful at identifying actions that had been seen more frequently than comparison sequences—were also successful at learning conditional-probability statistics. These experiments help to clarify the mechanisms subserving processing of intentional action, and they highlight important differences from, as well as similarities to, prior studies of statistical learning in other domains, including language.  相似文献   

关于酉Euler函数的Subbarao猜想     

乐茂华 《商丘师范学院学报》2005,21(2):44-45

对于正整数n，设ψ^*(n)是酉Euler函数．本文证明了：当n是幂数时，如果n=1(mod ψ^*(n))，则n必为素数方幂．  相似文献   

论马丁·卡诺伊的教育与国家关系理论     

LE Xianlian 《外国教育研究》2007,(8)

马丁.卡诺伊立足于西方马克思主义视角,借用帝国主义、后殖民主义和依赖理论等,系统地阐述了不同类型和不同发展阶段国家的教育与国家发展的相应关系。  相似文献   

College Students’ Reasons for Depression Nondisclosure in Primary Care     

William J. Meyer  Patrick Morrison  Anayansi Lombardero  Kelsey Swingle  Duncan G. Campbell 《Journal of College Student Psychotherapy》2016,30(3):197-205

Unwillingness to share depression experiences with primary care physicians contributes to the undertreatment of depression. This project examined college students’ reasons for depression nondisclosure to primary care providers (PCPs). Undergraduate participants read a vignette describing someone with depression and completed measures of disclosure barriers. Analyses indicated 26% of respondents would NOT disclose depression symptoms to PCPs. Reasons for nondisclosure included difficulty initiating the depression conversation, medication aversion, and fear of referral to a psychologist. Also, anger toward the vignette character varied with disclosure willingness, suggesting that nondisclosers feel more stigma than disclosers and are less likely to engage in psychotherapy. Because engagement in pharmacological and/or psychotherapeutic treatment requires identification of depression in healthcare settings, increased understanding of disclosure barriers could increase students’ access to depression treatment.  相似文献   

WOMBAT A tool for mixed model analyses in quantitative genetics by restricted maximum likelihood （REML）   总被引：31，自引：0，他引：31  

Meyer K 《Journal of Zhejiang University. Science. B》2007,8(11):815-821

WOMBAT is a software package for quantitative genetic analyses of continuous traits, fitting a linear, mixed model; estimates of covariance components and the resulting genetic parameters are obtained by restricted maximum likelihood. A wide range of models, comprising numerous traits, multiple fixed and random effects, selected genetic covariance structures, random regression models and reduced rank estimation are accommodated. WOMBAT employs up-to-date numerical and computational methods. Together with the use of efficient compilers, this generates fast executable programs, suitable for large scale analyses. Use of WOMBAT is illustrated for a bivariate analysis. The package consists of the executable program, available for LINUX and WINDOWS environments, manual and a set of worked example, and can be downloaded free of charge from http://agbu. une.edu.au/~kmeyer/wombat.html  相似文献   

Infant joint attention, temperament, and social competence in preschool children   总被引：2，自引：0，他引：2  

Vaughan Van Hecke A  Mundy PC  Acra CF  Block JJ  Delgado CE  Parlade MV  Meyer JA  Neal AR  Pomares YB 《Child development》2007,78(1):53-69

Infant joint attention has been observed to be related to social-emotional outcomes in at-risk children. To address whether this relation is also evident in typically developing children, 52 children were tested at 12, 15, 24, and 30 months to examine associations between infant joint attention and social outcomes. Twelve-month initiating and responding to joint attention were related to 30-month social competence and externalizing behavior, even when accounting for 15-month temperament ratings, 24-month cognition and language, and demographic variables. These results suggest that, in addition to associations with language and cognition, infant joint attention reflects robust aspects of development that are related to individual differences in the emergence of social and behavioral competence in childhood.  相似文献   

美国高校本科招生录取标准及其价值取向   总被引：2，自引：0，他引：2  

乐毅 《复旦教育论坛》2006,4(3):17-20

通过对美国高校本科招生录取标准多样性因素的分析,探讨其价值取向的多元性存在的客观性,进而提出我国高等学校招生选拔录取标准中的价值取向和教育理念、制度环境以及价值实现的方式问题,为现实的改革提供有益的启示。  相似文献