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  1. Hace 3 días · Therefore, sound does not exist if we do not hear it. When a tree falls, the motion disturbs the air and sends off air waves. This physical phenomenon, which can be measured by instruments other than our ears, exists regardless of human perception (seeing or hearing) of it. Putting together, although the tree falling on the island sends off air ...

  2. Hace 1 día · Now, as a graduate student in the University of California, Berkeley, laboratory of the scientist who wrote that textbook, George Brooks, his research is providing a much clearer picture of ...

  3. Hace 2 días · Contaminated drinking water from widespread environmental pollutants such as perfluoroalkyl and polyfluoroalkyl substances (PFAS) poses a rising threat to public health. PFAS monitoring in groundwater is limited and fails to consider pesticides found to contain PFAS as a potential contamination source. Given previous findings on the disproportionate exposure of communities of Color to both ...

  4. Hace 2 días · PDF | In this collection ... George McCall Theal and published in 1905 (Stow and . Theal 1905). ... Berkeley: University of California. Balme, Jane, and Kate Morse. 2006. Shell beads and social ...

  5. Hace 2 días · This, combined with the impacts of the Internet and social media, has generated an unprecedented flux of information about rock art images. That said, globalization remains a challenge for many engaged in rock art research and management. As we see in Sect. 1.4, tensions between ‘the global’ and the ‘local’ arise.

  6. Hace 3 horas · Trading Is Hazardous to Your Wealth: The Common Stock Investment Performance of Individual Investors BRAD M. BARBER and TERRANCE ODEAN* ABSTRACT Individual investors who hold common stocks directly pay a tremendous perfor-

  7. Hace 1 día · Berkeley J. Dietvorst (berkeley.dietvorst@chicagobooth.edu) is associate professor of marketing at the University of Chicago Booth School of Business, Chicago, IL 60637, USA. Both authors contributed equally to this article. The authors thank Anastasiya Apalkova and Jieyi Chen for research assistance.