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101.
INTRODUCTIONAntcolonyalgorithms (Hertz ,etal.,2 0 0 0 ) ,investigatedsystematicallyatfirstinDorigo’sPh .D .dissertation ( 1 992 )astheimi tationofthefood seekingbehaviorinantsociet ies,haveattractedthegreatattentionofre searchersincomprehensivefieldsofsystemopti mizat… 相似文献
102.
Sandra N. Kaplan 《Roeper Review》2013,35(2):12-13
Play should be an integral part of a curriculum designed for young gifted children. 相似文献
103.
Number sense growth in kindergarten: a longitudinal investigation of children at risk for mathematics difficulties 总被引:3,自引:0,他引:3
Number sense development of 411 middle- and low-income kindergartners (mean age 5.8 years) was examined over 4 time points while controlling for gender, age, and reading skill. Although low-income children performed significantly worse than middle-income children at the end of kindergarten on all tasks, both groups progressed at about the same rate. An exception was story problems, on which the low-income group achieved at a slower rate; both income groups made comparable progress when the same problems were presented nonverbally with visual referents. Holding other predictors constant, there were small but reliable gender effects favoring boys on overall number sense performance as well as on nonverbal calculation. Using growth mixture modeling, 3 classes of growth trajectories in number sense emerged. 相似文献
104.
Rens van de Schoot David Kaplan Jaap Denissen Jens B. Asendorpf Franz J. Neyer Marcel A.G. van Aken 《Child development》2014,85(3):842-860
Bayesian statistical methods are becoming ever more popular in applied and fundamental research. In this study a gentle introduction to Bayesian analysis is provided. It is shown under what circumstances it is attractive to use Bayesian estimation, and how to interpret properly the results. First, the ingredients underlying Bayesian methods are introduced using a simplified example. Thereafter, the advantages and pitfalls of the specification of prior knowledge are discussed. To illustrate Bayesian methods explained in this study, in a second example a series of studies that examine the theoretical framework of dynamic interactionism are considered. In the Discussion the advantages and disadvantages of using Bayesian statistics are reviewed, and guidelines on how to report on Bayesian statistics are provided. 相似文献
105.
Randa Abbas Vered Vaknin-Nusbaum Ari Neuman Geraldine Mongillo Dorothy Feola Rochelle Goldberg Kaplan 《Cultura y Educación》2013,25(4):730-765
AbstractResearchers have shown an increased interest in the way teachers use their knowledge about language (KAL) to enhance student understanding and learning. This qualitative case study investigated first- and second-grade teachers’ use of KAL in Arabic. We investigated the linguistic transitions from standard Arabic to spoken Arabic made by the teachers during mathematics lessons. The results suggested that Arab-speaking mathematics teachers were aware of the gap between home language (Spoken Arabic) and school language (Modern Standard Arabic) and used linguistic transition as a teaching strategy to develop academic thinking and behaviour among their students. The results suggested that Arab teachers built a non-formal bilingual education programme where the two languages were used to teach mathematics. Despite the requirement to use Modern Standard Arabic, participants bridged the gap between the languages, which suggests an inherent understanding that ‘language and identity are ultimately inseparable’. 相似文献
106.
We argue for decreasing the use of the word spread when describing the statistical idea of dispersion or variability in introductory statistics courses. In addition, we argue for increasing the use of the word variability as a replacement for spread. 相似文献
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For many cases, target localization accuracy can significantly improve by accounting for the propagation delay between the target source and the sensors. This paper considers when it is advantageous to compensate for the propagation delay for the case of a network of nodes where each node consists of an array of sensors. Each node calculates a direction of arrival (DOA) from the raw data, and these DOAs are combined to localize the target. First, we consider the case when no prior data are given and the localization occurs using DOA measurements from a single snapshot. Such localization methods are necessary to initiate a target track. Finally, we investigate the case where an extended Kalman filter is used to aggregate measurements over multiple snapshots. 相似文献
110.
OBJECTIVE: The purpose was to explore the effects of victim and perpetrator gender, type of abuse, and victim-perpetrator relationship on university students' and non-students' perceptions of different kinds of child abuse. METHOD: One hundred and ninety-nine participants (including university students and non-student adults) evaluated each of 24 vignettes (within-subjects design) describing an abusive interaction between a child and an adult. The following four variables were manipulated: the victim's gender, the perpetrator's gender, the type of abuse (physical, relatively mild sexual, or relatively severe sexual), and the perpetrator's relationship to the victim (parent or babysitter). Participants rated each vignette on a number of dimensions: degree of trauma and severity, likelihood of general occurrence and reoccurrence, victim believability, and "repressibility" of the event. RESULTS: Significant interactions emerged on each dimension. For example, sexual abuse (whether mild or severe) was rated as being more traumatic and severe if perpetrated by a parent, but relationship type did not affect perceptions of physical abuse. In addition, significant perpetrator gender by victim gender interactions indicated that homosexual abuse was perceived as more traumatic and repressible than heterosexual abuse, but as less likely to occur; and male participants tended to be more affected by the gender of the perpetrator and abuse type than female participants. CONCLUSION: The results suggest that people have stereotypes about the circumstances and consequences of child abuse. These stereotypes are often, though not always, consistent with existing empirical findings. 相似文献