科学与环境
Vitamin B1 gains in wild lake trout embryos challenge assumptions drawn from hatcheries
来源: Phys.org - latest science and technology news stories · 发布于
For decades, fisheries managers have struggled to restore recruitment in wild lake trout populations across the Great Lakes region, with limited success. Returning this species to its former abundance is hampered by overfishing, sea lamprey predation, invasive species and habitat
For decades, fisheries managers have struggled to restore recruitment in wild lake trout populations across the Great Lakes region, with limited success. Returning this species to its former abundance is hampered by overfishing, sea lamprey predation, invasive species and habitat alterations.
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Vitamin D drug may help crack pancreatic cancer’s protective shield
A vitamin D analog may help break down pancreatic cancer’s protective defenses, potentially making tumors more vulnerable to chemotherapy and immune attack. A small clinical trial found encouraging responses, especially in patients whose tumors had high levels of the vitamin D re
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Sharks can hear nearly 250 feet away and pinpoint the source
Wild blacktip sharks can detect low-frequency sounds from nearly 250 feet away, according to experiments conducted off the Florida coast. The sharks not only heard the sounds but sharply changed direction away from them, suggesting they could pinpoint where they were coming from.
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Exploring systemic racism as the default explanation for disparities
Much of the field of sociology treats systemic racism as its default explanation for racial disparities rather than as an open question that requires further investigation and evidence, according to a recent position paper. The assumptions and moralization surrounding the origins
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Global review reveals major blind spots in our understanding of climate change impacts on Mediterranean ecosystems
A new global review of observed climate change impacts on plant communities reveals major gaps in where and how we monitor some of the world's most climate-vulnerable ecosystems.
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Neutrons, rotating black holes, and a galactic PeVatron at the center of the Milky Way
Galactic black holes are cosmic mitochondria, powerhouses of the universe. Most of the energy these supermassive black holes produce comes from the material surrounding them: superheated plasma in their accretion disks interacting with tremendous magnetic fields. But there is a m
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