科学与环境
Clearer air does not always signal lower harmful potential from particle pollution
来源: Phys.org - latest science and technology news stories · 发布于
Fine particulate matter (PM2.5) is commonly associated with both health concerns and poor visibility. However, these two effects do not necessarily improve or worsen at the same time.
Fine particulate matter (PM2.5) is commonly associated with both health concerns and poor visibility. However, these two effects do not necessarily improve or worsen at the same time.
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Nearly 10,000 mapped reactions reveal overlooked steps in CO₂-to-fuel conversion
Scientists are increasingly exploring carbon dioxide (CO₂) hydrogenation—where CO₂ reacts with hydrogen over a catalyst to produce products like methanol—to convert CO₂ into useful chemicals and fuels. However, it involves thousands of tiny chemical steps happening on the catalys
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Crystal alignment explains why magnesium alloy plates resist ballistic impacts better in one direction
Magnesium (Mg) alloys offer a pathway to lighter, more efficient aerospace and defense structures because of their low density, high specific strength and excellent damping capacity. However, their hexagonal close-packed (HCP) crystal structure makes deformation highly dependent
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New Zealand's native plant seeds may survive wildfires
Mākaka (native broom) and kōwhai seeds might be able to survive the heat of fires, new research shows. Scientists heated native and exotic seeds in a lab oven to temperatures they may face in the soil during a fire, expecting only the exotics—which often experience fires in their
Phys.org - latest science and technology news stories ·
Leucine does more than build muscle. It powers up your cells
The essential amino acid leucine can boost cellular energy production by protecting key proteins on mitochondria from being destroyed. The discovery reveals a new connection between nutrition and metabolism that could eventually lead to new approaches for metabolic disorders and
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Mulberry may reshape gut bacteria and influence metabolism
Mulberry compounds may reshape the gut microbiome in ways that support intestinal health and metabolism, with some combinations showing especially strong effects in animal studies. However, the results vary depending on the plant part and processing method, and the benefits have
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