10 research outputs found

    Supermarket Speak: Increasing Talk Among Low-Socioeconomic Status Families

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    Children from low-socioeconomic status (SES) families often fall behind their middle-class peers in early language development. But interventions designed to support their language skills are often costly and labor-intensive. This study implements an inexpensive and subtle language intervention aimed at sparking parent-child interaction in a place that families naturally visit: the supermarket. We placed signs encouraging adult-child dialogue in supermarkets serving low- and mid-SES neighborhoods. Using an unobtrusive observational methodology, we tested how these signs affected adult-child interactions. When signs were present in supermarkets serving low-SES neighborhoods, both the amount and the quality of talk between adults and children increased significantly, compared to when the signs were not present; signs had little effect in middle-SES supermarkets. This study demonstrates that implementing simple, cost-effective interventions in everyday environments may bolster children's language development and school readiness skills. © 2015 International Mind, Brain, and Education Society and Blackwell Publishing, Inc

    An improved thermobalance reactor for the study of reduction and hydrofluorination of uranium feed materials /

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    Two thermobalances have been constructed which make use of an improved reactor design for the study of gas-solid reactions as they apply to the conversion of uranium oxide materiels to uranium tetrafluoride. Since temperature has been recognized as one of the most important rate-governing factors for both of the reactions involved in this transformation, the reactor design provides for maintaining the sample temperature constant to +- 1.0 deg C. at any selected temperature over the range 100 to 600 deg C. Rate-controlling variables such as reaction temperatures, gas flow rates, preheating time and bed depth have been studied in order to establish the ranges over which small variations in these factors can be ignored. (auth)."September 16, 1964"Includes bibliographic references (pages 42-44).Two thermobalances have been constructed which make use of an improved reactor design for the study of gas-solid reactions as they apply to the conversion of uranium oxide materiels to uranium tetrafluoride. Since temperature has been recognized as one of the most important rate-governing factors for both of the reactions involved in this transformation, the reactor design provides for maintaining the sample temperature constant to +- 1.0 deg C. at any selected temperature over the range 100 to 600 deg C. Rate-controlling variables such as reaction temperatures, gas flow rates, preheating time and bed depth have been studied in order to establish the ranges over which small variations in these factors can be ignored. (auth).Mode of access: Internet

    Intercellular Crosstalk Via Extracellular Vesicles in Tumor Milieu as Emerging Therapies for Cancer Progression

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