A Communication Matrix Intervention to Increase Adoption of Federal Government Safety Recommendations

A 3-year, multichannel intervention project assessed adoption of federal government workplace safety testing methods among 3 randomly drawn samples of industrial hygienists. A communication matrix (McGuire, 1985, 1989) framework focusing on stages of reception, processing, and response was used to create, implement, and evaluate the intervention. Participants were interviewed by phone during 3 waves: baseline, immediately following year 1 of the intervention, and immediately following year 2 of the intervention. Results indicate a gain in reception over the course of the intervention. Increases in attitudes, control beliefs, intentions, and self-reported behavior were found between baseline and the 1st year of the intervention, and were maintained (although not increased) during the 2nd year of the intervention. Strengths and weaknesses of the intervention are viewed through the scope of the communication matrix

Large-scale migration into Britain during the Middle to Late Bronze Age

Present-day people from England and Wales harbour more ancestry derived from Early European Farmers (EEF) than people of the Early Bronze Age . To understand this, we generated genome-wide data from 793 individuals, increasing data from the Middle to Late Bronze and Iron Age in Britain by 12-fold, and Western and Central Europe by 3.5-fold. Between 1000 and 875 BC, EEF ancestry increased in southern Britain (England and Wales) but not northern Britain (Scotland) due to incorporation of migrants who arrived at this time and over previous centuries, and who were genetically most similar to ancient individuals from France. These migrants contributed about half the ancestry of Iron Age people of England and Wales, thereby creating a plausible vector for the spread of early Celtic languages into Britain. These patterns are part of a broader trend of EEF ancestry becoming more similar across central and western Europe in the Middle to Late Bronze Age, coincident with archaeological evidence of intensified cultural exchange . There was comparatively less gene flow from continental Europe during the Iron Age, and Britain's independent genetic trajectory is also reflected in the rise of the allele conferring lactase persistence to ~50% by this time compared to ~7% in central Europe where it rose rapidly in frequency only a millennium later. This suggests that dairy products were used in qualitatively different ways in Britain and in central Europe over this period. [Abstract copyright: © 2021. The Author(s), under exclusive licence to Springer Nature Limited.