Category Archives: Research

Cover Previews: Science Magazine – July 29, 2022

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Surprise virus tied to pediatric hepatitis cases

Two viruses plus a child’s genetic background may explain a recent surge in the United Kingdom

NSF grant decisions reflect systemic racism, study argues

Success rates for white scientists far exceed the NSF average, whereas Black and Asian researchers do worse

Ancient Europeans farmed dairy—but couldn’t digest milk

Giant study of ancient pottery and DNA challenges common evolutionary explanation for lactase persistence

A small marine isopod plays a role in fertilizing red seaweed, according to a new report that presents evidence of animal-mediated “pollination” in the marine environment. Read that study and more this week in Science: https://fcld.ly/fhhe8ba

Previews: New Scientist Magazine – July 30, 2022

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COVER STORIES

  • FEATURES – Your essential guide to the many breathtaking wonders of the universe
  • FEATURES – Daydreaming has a dark side – is your fantasising holding you back?
  • NEWS – No link between depression and serotonin, finds major analysis

Grab a copy from newsstands now or get our app to download digital and audio editions. https://newscientist.com/issue/3397/

Hydrogen Energy: Can It Lower Industry Emissions?

Heavy industries must decarbonise dramatically to reach net zero. Replacing fossil fuels with green hydrogen, created with renewable energy, is one way to reduce emissions. Examples of green hydrogen being used in various industries are emerging, but as the FT’s Sylvia Pfeifer reports, this carbon-free innovation faces a major challenge to scale up.

Science Previews: Nature Magazine – July 28, 2022

Volume 607 Issue 7920

Old Age: ‘Hyperexcitable Neurons’ Interrupt Sleep

For many older adults, a good night’s rest is elusive. The implications of chronically poor sleep can be far-reaching and include a decline in cognitive functioning and detrimental effects on health and general well-being. Fortunately, relief may be in sight.

A new study led by investigators at the Stanford University School of Medicine shows that neurons in the lateral hypothalamus, a brain region, play a pivotal role in sleep loss in old mice. More specifically, the arousal-promoting hypocretin neurons become hyperexcitable, driving sleep interruptions.

Read the full story: https://stan.md/3JQ7z77

Luis de Lecea, PhD, is a professor of psychiatry and behavioral sciences at Stanford Medicine. He is the study’s senior author and hopes the finding could pave the way to new drug treatments for age-related sleep problems in humans.

Shi-Bin Li, PhD, is an instructor in the Psychiatry and Behavioral Sciences department at Stanford Medicine. He is also a basic life research scientist in the de Lecea lab, and is the lead author of the study.

Cover Preview: Science Magazine – July 22, 2022

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Species tend to live in narrower slices of mountainside on tropical versus temperate mountains. Stronger competition in the tropics explains this pattern for birds. For example, the habitable range of this white-tipped sicklebill (Eutoxeres aquila) is limited as a result of competition with its close relative, the buff-tailed sicklebill (Eutoxeres condamini). See page 416.

As Omicron rages on, virus’ path remains unpredictable

Fast-spreading subvariants are coming and going. But an entirely new variant could still emerge

Cleaner air is adding to global warming

Satellites capture fall in light-blocking pollution

Consortium seeks to expand human gene catalog

Finding sequences that code for short proteins could add thousands of genes

Preview: New Scientist Magazine – July 23, 2022

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What lab-grown ‘mini-brains’ are revealing about this mysterious organ

Blobs of human brain cells cultivated in the lab, known as brain organoids or “mini-brains”, are transforming our understanding of neural development and disease. Now, researchers are working to make them more like the real thing

  • FEATURES – Historical plagues led to revolutions – could coronavirus do the same?
  • FEATURES – Scott Bolton on his missions to the gas giants of the solar system
  • FEATURES – What lab-grown ‘mini-brains’ are revealing about this mysterious organ

Cover Preview: Nature Magazine – July 21, 2022

Volume 607 Issue 7919

The cover shows an artistic impression of marine life in Indonesia’s coral reefs. The question of whether there are limits to biodiversity in the seas is typically addressed by examining the fossil record. In this week’s issue, Pedro Cermeño and his colleagues present a model that combines the fossil record with plate tectonics and Earth’s environmental conditions to offer insight into regional diversification of marine invertebrates. The researchers used the model to examine how biodiversity recovered after mass extinctions during the Phanerozoic eon, covering

 some 500 million years of Earth’s history. They found that throughout the Phanerozoic, less than 2% of area of the globe covered by water showed signs of diversity levels reaching saturation. The team also note that as Pangaea broke up into continents, the stability of Earth’s environmental conditions allowed the development of diversity hotspots that helped to drive an increase in biodiversity in the late Mesozoic and Cenozoic eras.

 

Cover Preview: Science Magazine – July 15, 2022

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SCIENCE – 15 JUL 2022

COVER: Voltage pulses from the tip of a scanning probe microscope induce single-molecule chemical reactions with selectivity and reversibility. Different constitutional isomers (distinguished here in shades of red, orange, and yellow) are selected by the polarity and magnitude of the voltage pulse. The findings advance the understanding of tip-induced chemistry and reduction-oxidation reactions in general. See pages 261 and 298.

Check out what’s new this week in Science: https://fcld.ly/uc4b5kh