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Aug 3, 2023 | 
science.org | Dario Bressan |Kai Wang |Andrew Barron |Susan E. Fahrbach
AbstractHuang et al. (1) make an exciting claim about a human-like dopamine-regulated neuromodulatory mechanism underlying food-seeking behavior in honey bees. Their claim is based on experiments designed to measure brain biogenic amine levels and manipulate receptor activity. We have concerns that need to be addressed before broad acceptance of their results and the interpretation provided.
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Aug 3, 2023 | 
science.org | Dario Bressan |Kai Wang |Bianca Lopez |Jake Yeston
Species Coexistence Tropical trees deter similar neighborsBianca LopezTropical forests host an unusually high diversity of tree species. Strong interactions between individuals are hypothesized to create these patterns. A tree is more likely to survive when surrounded by different tree species with different resource needs, diseases, and herbivores. Kalyuzhny et al. found patterns consistent with this mechanism in a long-term forest plot in Panama.
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Aug 3, 2023 | 
science.org | Dario Bressan |Kai Wang |Matthew Warren |Michael Price
MedicineThe National Institutes of Health (NIH) this week announced clinical trials to test treatments against Long Covid, including drugs and other strategies targeting symptoms such as brain fog, rapid heart rate, and sleep troubles. Most trials will enroll 100 to 300 people with Long Covid and begin this year. Neurologic interventions will include a web-based brain training program and a device for transcranial stimulation.
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Aug 3, 2023 | 
science.org | Dario Bressan |Kai Wang |Michael Funk |Sarah Lemprière
Chemistry Drugs from turpentineMichael A. FunkFrom the inception of modern chemistry, many drugs, dyes, and fragrances have been derived from coal or oil. Although they are a very small fraction of the total carbon footprint, developing sustainable sources of these products is important to build up the sustainable chemistry sector. Tibbets et al. developed divergent syntheses of two common over-the-counter painkillers using monoterpenes that can be sourced from forestry by-products.
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Aug 3, 2023 | 
tinyurl.com | Dario Bressan |Kai Wang |Christina Kim
(0)eLetters eLetters is a forum for ongoing peer review. eLetters are not edited, proofread, or indexed, but they are screened. eLetters should provide substantive and scholarly commentary on the article. Embedded figures cannot be submitted, and we discourage the use of figures within eLetters in general. If a figure is essential, please include a link to the figure within the text of the eLetter. Please read our Terms of Service before submitting an eLetter. Log In to Submit a Response
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Jul 27, 2023 | 
science.org | Dario Bressan |Kai Wang |Sandra González-Bailón |David Lazer
ResultsFigure 2 provides answers to RQs 1 to 4. The segregation score based on exposed audience for domains fluctuates around 0.35 (i.e., the gap between the intersection of conservatives with conservatives versus liberals with conservatives is 35 percentage points). This is substantially higher than values found in prior research based on web-browsing behavior, which range from 0.02 to 0.1 (6, 9, 11).
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Jul 27, 2023 | 
science.org | Dario Bressan |Kai Wang
(0)eLetters eLetters is a forum for ongoing peer review. eLetters are not edited, proofread, or indexed, but they are screened. eLetters should provide substantive and scholarly commentary on the article. Embedded figures cannot be submitted, and we discourage the use of figures within eLetters in general. If a figure is essential, please include a link to the figure within the text of the eLetter. Please read our Terms of Service before submitting an eLetter. Log In to Submit a Response
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Jul 27, 2023 | 
science.org | Dario Bressan |Kai Wang |Michael Wagner
In the spring of 2020, pressed by internal research staff and with support from the highest levels of the company, Facebook (now Meta) began a collaboration with outside academics to study the 2020 US presidential election. Interest in social media's role in elections came after evidence that the 2016 US election was rife with suspicious and divisive groups targeting swing-state residents on Facebook (1).
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Jul 27, 2023 | 
science.org | Dario Bressan |Kai Wang |Andrew Guess |Neil Malhotra
AbstractWe studied the effects of exposure to reshared content on Facebook during the 2020 US election by assigning a random set of consenting, US-based users to feeds that did not contain any reshares over a 3-month period. We find that removing reshared content substantially decreases the amount of political news, including content from untrustworthy sources, to which users are exposed; decreases overall clicks and reactions; and reduces partisan news clicks.
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Jul 27, 2023 | 
science.org | Dario Bressan |Kai Wang |Michael Marder
(0)eLetters eLetters is a forum for ongoing peer review. eLetters are not edited, proofread, or indexed, but they are screened. eLetters should provide substantive and scholarly commentary on the article. Embedded figures cannot be submitted, and we discourage the use of figures within eLetters in general. If a figure is essential, please include a link to the figure within the text of the eLetter. Please read our Terms of Service before submitting an eLetter. Log In to Submit a Response
