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Hoffmann, Heiko; Tausch, Michael W. – Journal of Chemical Education, 2018
An inexpensive self-made apparatus for photochemical experiments was developed and has been tested to facilitate the inclusion of photoreactions in undergraduate teaching laboratories despite budget constraints. The core setup allowing the selection of defined wavelengths in the visible and UV regions is made of commercially available components…
Descriptors: Chemistry, Science Instruction, Undergraduate Students, Teaching Methods
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Steiner, Elizabeth D.; Phillips, Andrea; Moore, Pauline; Jackson, Brian A.; Augustine, Catherine H. – RAND Corporation, 2021
A core responsibility of the local education agencies (LEAs) that operate kindergarten-through-12th grade (K-12) schools across the United States is creating safe and secure environments that support effective teaching and learning. To help them meet this obligation, the U.S. Department of Homeland Security's (DHS's) Cybersecurity and…
Descriptors: School Districts, Kindergarten, Elementary Secondary Education, School Safety