Current Issue
- August 18, 2026
- vol. 123
- no. 33
- Black–White mortality disparities remain a persistent form of inequality in the United States. This study provides evidence that the proportion of enslaved people across U.S. counties in 1860 predicts contemporary Black–White mortality ...We tested whether contemporary Black–White mortality disparities in the United States may be rooted in the historical legacy of slavery and perpetuated through structural inequalities. Linking county-level data on the proportion of enslaved people in 1860 ...
- In the United States, the legal status of the 30 to 40 million annual firearms transactions is defined by state and federal regulations. These regulations primarily aim to reduce criminal misuse while preserving access for the large majority of adults who ...
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- Our research sheds light on the fascinating molecular mechanism behind the insect green camouflage, a mystery that has intrigued scientists for over a century. By isolating and identifying a unique green pigment from the bush-cricket, we found ...Molecular mechanisms underlying the green insect camouflage have puzzled researchers for over a century. Here, we isolated and identified a green water-soluble protein from the integument of bush-cricket Tettigonia cantans. De novo sequencing and cloning ...
- While generative AI has been shown to enhance productivity, its influence on learning new skills remains unclear. Our research examines the impact of generative AI, specifically GPT-4, on student learning in math education. Through a large-...Generative AI is poised to revolutionize how humans work, and has already demonstrated promise in significantly improving human productivity. A key question is how generative AI affects learning—namely, how humans acquire new skills as they perform tasks. ...
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