Picture Exchange Communication System (PECS) training was implemented with 5 nonspeaking adults with mental retardation who were not currently using any type of functional communication system. A modified ABAB, single-subject design was used to assess the effectiveness of PECS in enhancing the functional communication skills of these individuals. Three individuals progressed through 4 PECS training phases relatively quickly and developed functional skills that they were able to display in home and community settings. Two other individuals demonstrated limited progress, and the PECS training did not meaningfully alter their level of communicative competence. Implications for teaching functional communication skills to nonspeaking adults are discussed, and recommendations for future research are provided.

The emerging conceptualization can guide services and interventions as well as illuminate further research on the family systems of LGBQ youth.

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CAS Common Chemistry ( ) is an open web resource that provides access to reliable chemical substance information for the scientific community. Having served millions of visitors since its creation in 2009, the resource was extensively updated in 2021 with significant enhancements. The underlying dataset was expanded from 8000 to 500,000 chemical substances and includes additional associated information, such as basic properties and computer-readable chemical structure information. New use cases are supported with enhanced search capabilities and an integrated application programming interface. Reusable licensing of the content is provided through a Creative Commons Attribution-Non-Commercial (CC-BY-NC 4.0) license allowing other public resources to integrate the data into their systems. This paper provides an overview of the enhancements to data and functionality, discusses the benefits of the contribution to the chemistry community, and summarizes recent progress in leveraging this resource to strengthen other information sources.

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