Granites are nearly absent in the Solar System outside of Earth. Achieving granitic compositions in magmatic systems requires multi-stage melting and fractionation, which also increases the concentration of radiogenic elements. Abundant water and plate tectonics facilitate these processes on Earth, aiding in remelting.
View Article and Find Full Text PDFCallous-unemotional (CU) traits are characterized by a lack of guilt and empathy, restricted affect, and low concern about performance, and are increasingly recognized as co-occurring with substance use in youth. However, there is mixed evidence concerning whether they make a unique contribution to substance use. This systematic review and meta-analysis sought to quantify the association between CU traits and substance use in childhood, accounting for potential moderators including sample characteristics (age, gender, community versus clinical/forensic samples), CU traits measure and informant, and study design (cross-sectional or longitudinal).
View Article and Find Full Text PDFAbstract: Tolerance for ambiguity (TFA) is a character trait that is associated with a multitude of benefits for physicians, including increased empathy, greater desire to work in underserved areas, fewer medical errors, enhanced psychological well-being, and lower rates of burnout. Furthermore, it has been shown that TFA is a malleable trait that can be enhanced with interventions such as art courses and group reflection. This study describes the utility of a six-week medical ethics elective course in increasing TFA in first- and second-year medical students.
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