Radiocarbon (C) is essential for creating chronologies to study the timings and drivers of pivotal events in human history and the Earth system over the past 55,000 years. It is also a fundamental proxy for investigating solar processes, including the potential of the Sun for extreme activity. Until now, fluctuations in past atmospheric C levels have limited the dating precision possible using radiocarbon.
View Article and Find Full Text PDFObjective: We conducted a large ( = 204) randomized, clinical trial to test the efficacy of parent-child interaction therapy (PCIT) on observed parenting, two key drivers of maladaptive parenting-self-regulation and social cognitions, and child behavior outcomes in a sample of child welfare-involved families.
Method: Participants were randomly assigned to standard PCIT ( = 120) or services-as-usual (SAU; = 84). The sample was characterized by low household income, significant exposures to adverse childhood experiences, and substance abuse.
Six infant human teeth and 112 animal tooth pendants from Borsuka Cave were identified as the oldest burial in Poland. However, uncertainties around the dating and the association of the teeth to the pendants have precluded their association with an Upper Palaeolithic archaeological industry. Using <67 mg per tooth, we combined dating and genetic analyses of two human teeth and six herbivore tooth pendants to address these questions.
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