Infants’ Lexical Processing Efficiency is Related to Vocabulary Size by One Year of Age

By 15–18 months, infants’ skill in interpreting familiar words, or lexical processing efficiency (LPE), improves substantially and is correlated with vocabulary size concurrently and several months later. Prior to this age LPE is quite poor, and to date there is little evidence that it is related to vocabulary size. If this relation only emerges once infants have relatively good LPE, and also know a substantial number of words, it could suggest that the processes that support the rapid growth in vocabulary commonly observed as infants approach age 2 may not yet be functional in the earlier stages of lexical development. However, using a modified LPE task we found that 12‐month‐olds with better LPE understood more words at that age and also produced more words several months later. These results suggest that meaningful individual differences in LPE are already emerging by 12 months and may support lexical development across the second year.     

No‐Bubble Condition: Model‐Free Tests in Housing Markets

We test for the existence of housing bubbles associated with a failure of the transversality condition that requires the present value of payments occurring infinitely far in the future to be zero. The most prominent such bubble is the classic rational bubble. We study housing markets in the United Kingdom and Singapore, where residential property ownership takes the form of either leaseholds or freeholds. Leaseholds are finite‐maturity, pre‐paid, and tradeable ownership contracts with maturities often exceeding 700 years. Freeholds are infinite‐maturity ownership contracts. The price difference between leaseholds with extremely‐long maturities and freeholds reflects the present value of a claim to the freehold after leasehold expiry, and is thus a direct empirical measure of the transversality condition. We estimate this price difference, and find no evidence of failures of the transversality condition in housing markets in the U.K. and Singapore, even during periods when a sizable bubble was regularly thought to be present.     

Performance models for unreliable flexible manufacturing systems

This paper deals with the analysis and application of queueing models for single and multi stage flexible manufacturing systems that are subject to resource failure. Exact results are derived for the single stage queueing system. Two approximations are presneted for the multi stage queueing system as a closed network. We validate the approximations by comparing their performance estimates against the exact global balance solution.     

Differences in Perceptions of Child Sexual Abuse Based on Perpetrator Age and Respondent Gender

Child sexual abuse changes the lives of countless children. Child sexual abuse victims experience short and long term negative outcomes that affect their daily functioning. In this study, undergraduate students' perceptions of CSA were obtained using vignettes with an adult or child perpetrator and a general questionnaire. Results indicated participants receiving the child-on-child vignette were less likely to rate the vignette as abuse, saw the abuse as less severe, and assigned less blame to the perpetrator than participants reading the adult-on-child vignette. On a general questionnaire, male participants saw child-on-child abuse as less severe and more encouraged by society than did female participants. The information can be utilized by professionals in treatment planning and preventing revictimization at disclosure.     

Working Together to Improve Accessibility: Consortial E-Resource Accessibility and Advocacy

Abstract

In 2015, the Big Ten Academic Alliance (BTAA) Libraries formed the BTAA Library E-Resource Accessibility Group. This group, which consists of members from each Big Ten library and the BTAA Library Initiatives staff, was charged with creating boilerplate accessibility license language for vendor contracts, as well as collectively funding high level accessibility testing of e-resources and posting these publicly for all libraries and users. Since the creation of the group, about 50 databases have been tested and accessibility license language has been created that can be used and adapted by anyone. In 2019, the group welcomed another consortia, the Association of Southeastern Research Libraries (ASERL), to be partners in this work, renaming themselves the Library Accessibility Alliance. This paper examines the mission, accomplishments, and new partnership in more depth while also discussing the need for focused efforts to help ensure accessible e-resources.     

我为电影狂

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Differences in perceptions of child sexual abuse based on perpetrator age and respondent gender

Child sexual abuse changes the lives of countless children. Child sexual abuse victims experience short and long term negative outcomes that affect their daily functioning. In this study, undergraduate students' perceptions of CSA were obtained using vignettes with an adult or child perpetrator and a general questionnaire. Results indicated participants receiving the child-on-child vignette were less likely to rate the vignette as abuse, saw the abuse as less severe, and assigned less blame to the perpetrator than participants reading the adult-on-child vignette. On a general questionnaire, male participants saw child-on-child abuse as less severe and more encouraged by society than did female participants. The information can be utilized by professionals in treatment planning and preventing revictimization at disclosure.     

Benedict Cumberbatch:天才最性感

泰戈尔在某部小说中说,女性手中的花环,要么挂在禽兽的恶汉脖子上,要么献给强同虚构人手般空想。因为女性在心底深处,渴望被肉欲的车轮碾碎,又或者在思想的烈火中融化--这种言辞似乎过于极端,好像女人都像受虐狂--不过,女人确实热爱幻想田人的强大,或肉体,或精神.     

Gro¨bner basis strategies in regression

The Gröbner basis method in experimental design (Pistone & Wynn, 1996) is developed in a practical setting. The computational algebraic techniques (Gröbner bases in particular) are coupled with statistical strategies and the links to more standard approaches made. A new method of analysing a non-orthogonal experiment based on the Gröbner basis method is introduced. Examples are given utilizing the approaches.