697 research outputs found

    Allocentric directional processing in the rodent and human retrosplenial cortex

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    Copyright Ā© 2014 Knight and Hayman. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these termsHead direction (HD) cells in the rodent brain have been investigated for a number of years, providing us with a detailed understanding of how the rodent brain codes for allocentric direction. Allocentric direction refers to the orientation of the external environment, independent of oneā€™s current (egocentric) orientation. The presence of neural activity related to allocentric directional coding in humans has also been noted but only recently directly tested. Given the current status of both ļ¬elds, it seems beneļ¬cial to draw parallels between this rodent and human research. We therefore discuss how ļ¬ndings from the human retrosplenial cortex (RSC), including its ā€œtranslational functionā€ (converting egocentric to allocentric information) and ability to code for permanent objects, compare to ļ¬ndings from the rodent RSC. We conclude by suggesting critical future experiments that derive from a cross-species approach to understanding the function of the human RSCPeer reviewedFinal Published versio

    National Security or Consumer Privacy? A Question Even Siri Couldnā€™t Answer

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    Jay-Z Has 99 Problems but a Sample Ainā€™t One

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    Jay-Z Has 99 Problems but a Sample Ainā€™t One

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    The Impact of Number Talks on Kindergarten Math Growth in a Large Private Independent School

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    This mixed methods action research study examined the implementation process and impact of a 9-week Number Talk intervention to build number sense in kindergarten students. Fifty-eight kindergarten students engaged in daily Number Talk lessons for 9 weeks. Qualitative data were collected to evaluate the strengths and challenges of the implementation process with the teacher participants through a twice weekly observation tool and through bi-weekly math professional learning community discussions. The qualitative data gathered were coded for themes using Teschā€™s Eight Steps for coding information. The data allowed me to evaluate the implementation process to determine if Number Talks were implemented with fidelity during the implementation process. Quantitative data were collected with the Number Sense Screener (NSS) assessment instrument. The students were given the NSS as a pretest before Number Talk implementation and as a posttest after the 9 weeks of implementation. A paired sample t test was utilized to analyze the pre and posttest results. The t test was completed using the results of the pre- and post-NSS, and analysis showed a significant gain in the mean score for the targeted group. The qualitative and quantitative data were utilized by the participating teachers and me to create an action plan for future Number Talk implementation within the school. The action plan includes four steps for implementation to support lesson planning, implementation reflection, implementation walk-throughs, and formative assessment of number sense

    TTAB Decisions No Longer the ā€œRed-Headed Stepchildā€ of Precedential Authority

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    Perceptions of Successful Aging Among Maine Elders with Physical Limitations: Insights from Qualitative Interviews

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    Research Question: How do elders living with a disability perceive the aging process

    The Impacts of Retail Promotions on the Demand for Orange Juice: A Study of a Retail Chain

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    This study examined the impacts of retail promotions on the demand for five brands of orange juices for a retail chain (referred to as Retailer X) and its competitors using the Rotterdam model. Results show that the combination of feature ads and displays had the largest impacts on retail revenue among the four promotional tactics considered, while temporary price reductions had no additional advertising impacts other than price impacts on retail revenues. Results also show that when Retailer X promotes an OJ brand using any of the tactics studied, a larger portion of the increased demand for the promoted brand came from reduced demand for other brands of OJ in the same store and a smaller portion came from the decreased demand in competing stores in the same trading area.Demand and Price Analysis, Marketing,
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