SRI International
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Exploring Sources of Variation in Studies of Knowledge Structure Coherence: Comparing Force Meanings and Force Meaning Consistency Across Two Turkish Cities
The current study compares student interviews across two cities in Turkey to provide insight into this question. The results demonstrate no significant differences in students’ consistency or meanings of force between cities.
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Mechanisms for E-F coupling and their manifestation
This work outlines the main physical mechanisms and constraints thought to be involved in midlatitude E–F coupling, and discusses some of the challenges to inventing an illuminating observational campaign.
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Racial/Ethnic Differences in Hospital Use and Cost among a Statewide Population of Children with Down Syndrome
This study generated population-based estimates of hospital use and cost to 3 years of age by race/ethnicity among children with DS in Massachusetts using birth certificates linked to birth defects registry and hospital discharge data from 1999 to 2004.
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Multiple CNS Nicotinic Receptors Mediate L-Dopa-Induced Dyskinesias: Studies with Parkinsonian Nicotinic Receptor Knockout Mice
Accumulating evidence supports the idea that drugs acting at nicotinic acetylcholine receptors (nAChRs) may be beneficial for Parkinson’s disease.
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Ink-jet and gravure printed electronics
Drop-on-demand ink-jet printing enables rapid, digital prototyping of electronic circuits based on solution-processable conductors, semiconductors and dielectrics.
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A decade of organic / polymeric photovoltaic research
This review article takes a retrospective look at the research and development of OPV, and focuses on recent advances of solution-processed materials and devices during the last decade, particular the polymer version of the materials and devices.
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Designing the Future of Preschool Math Learning: Can Tablets Help?
Could tablets be the key to unlocking a lifetime of deep mathematics learning for preschool children? The very question is controversial—and yet potentially very important. Math is rarely taught in preschool and when it’s taught, lessons tend to focus only on counting. However, when preschool children receive strong preparation in mathematics, the benefits—especially for children from poorer…
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Direct determination of the silicon donor ionization energy in homoepitaxial AlN from photoluminescence two-electron transitions
We report on the identification of a two-electron transition for the shallow donor silicon in homoepitaxial AlN.
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Printed organic integrated circuits for sensor systems
This presentation summarizes the Flextech project on an all-printed temperature sensor tag.
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First National Look: Special Education Services Used by Students with Autism
Students with Autism Spectrum Disorders (ASDs) have unique characteristics, including difficulties with communication, social interaction and repetitive behavior. To address ASD symptoms, special education programs employ a combination of communication, social and behavioral services and life skills training to help students function most effectively. While it is now commonly accepted that such programs can make…
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Exposure to Bisphenol-A Alters Mammary Gland Development and Increases Breast Cancer Risk
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Association of CD28 and CTLA-4 Gene Polymorphisms with Aggressive Periodontitis in Brazilians
Our hypothesis is that polymorphisms in genes that code for these molecules may be associated with periodontitis. The aim of the study was to investigate the association between +17 (T/C) CD28 and +49 (A/G) CTLA-4 gene polymorphisms and periodontitis in Brazilians.