Social ScienceGun violence remains at the forefront of the public policy debate when it comes to enacting new or strengthening existing gun legislation in the United States. Now a new study finds that the Massachusetts gun-control legislation passed in 2014 has had no effect on violent crime. (american.edu)
ChemistryPlastic made from DNA is renewable, requires little energy to make and is easy to recycle or break down. A plastic made from DNA and vegetable oil may be the most sustainable plastic developed yet and could be used in packaging and electronic devices. (newscientist.com)
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NeuroscienceHexadecanal, a molecule excreted by humans, found in abundance on the scalps of babies, sparks behavioral changes in adults who are exposed to it. In women, the molecule decreases connectivity in parts of the brain associated with social decision making, but increases connectivity in males. (wis-wander.weizmann.ac.il)
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NeuroscienceResearchers in Korea have developed a microrobot for minimally invasive delivery into the brain tissue via the intranasal pathway. It is expected to bring new possibilities of treating various intractable neurological diseases like Alzheimer's disease, Parkinson's, and brain tumors in the future. (dgist.ac.kr)
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Animal ScienceResearchers have created a kind of genetic toolbox that enables them to read a jellyfish's mind as it feeds, swims, evades predators, and more, in order to understand how the animal's relatively simple brain coordinates its behaviors. The new system is straightforward for researchers anywhere to use (caltech.edu)
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PhysicsBlack Holes Swallow Neutron Stars in a Single Bite, New Results Suggest. For the first time, scientists have without a doubt observed not one but two collisions between black holes and neutron stars. These two separate mergers occurred 10 days apart in January 2020. (scientificamerican.com)
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Social SciencePassion matters but not equally everywhere. In individualistic societies, passion better predicts achievement and explains more variance in achievement outcomes. In collectivistic societies, passion still positively predicts achievement, but it is a much less powerful predictor. (pnas.org)
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Rise from the world’s wonders to the edge of space. Feel more connected to our planet than ever. (worldview.space)
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PhysicsResearchers have developed a jelly-like material that can withstand the equivalent of an elephant standing on it and completely recover to its original shape, even though it’s 80% water. The soft-yet-strong material looks and feels like a squishy jelly but acts like an ultra-hard, shatterproof glass (cam.ac.uk)
EnvironmentOptimizing for carbon storage: a new model for biorefineries (glbrc.org)
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Social ScienceThe retail work environment has been found to be less healthy than other occupational environments. A new study now finds that frontline workers are at increased risk of developing behavioral health problems during the pandemic because of elevated workplace stressors. (journals.sagepub.com)
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EpidemiologyEmergence potential of mosquito-borne arboviruses from the Florida Everglades (journals.plos.org)
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AnthropologySome Ancient Maya Kingdoms Had Sustainable Agricultural Practices, High Food Yields. Using the high-resolution airborne LiDAR data, archaeologists have found extensive systems of sophisticated irrigation and terracing in and outside the ancient settlements of three Classic-period Maya kingdoms. (sci-news.com)
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Social ScienceResearchers have tried to study what makes one hug better: Hugs that last five or ten seconds are rated as more pleasurable than a single-second squeeze. And a ‘crisscross’ style in which each hugger places one arm over the other hugger’s shoulder is the preferred form of hugging, especially in men. (science.org)
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NeuroscienceHousework Linked to Sharper Memory in Older Adults.Older adults who continue to perform household chores have better cognition, attention span, & physical strength compared to those who no longer do their own home keeping chores. Housework in older adults was also linked to a decreased risk of falls (bmjopen.bmj.com)
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