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The current work was done as part of a larger research study aimed at examining the feasibility of using saliva-based testing in five K-12 schools in Illinois. Credit: Christine Herman In response to the COVID-19 pandemic, a majority of schools across the U.S. shifted to virtual learning. In a new study, published in Social Education
The cryogenic vacuum distillation system. Credit: YANG Bin The stable isotopes hydrogen and oxygen (δ2H and δ18O, respectively) in soil water are widely used in ecological studies, which rely on the accurate extraction of unfractionated water from different soil types. Cryogenic vacuum distillation (CVD) is the laboratory-based technique most widely used in eco-hydrological studies. However,…