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Phys.org-Spotlight Science News

Welcome to the “Phys.org-Spotlight Science News” update from Hawaii Science Digest.

Views expressed in this science and technology news summary are those of the reporters and correspondents.

Content supplied by “Phys.org”, an official publication of the Space X Network.

Accessed on 10 March 2020, 0025 UTC.

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Spotlight science news

Evolution

Study of hunter-gatherer community shows that how humans rest may affect their risk for heart disease

Standing desks are so passé. It’s time for squatting desks.

Archaeology & Fossils

Stone-age ‘likes’: Study establishes eggshell beads exchanged over 30,000 years

A clump of grass grows on an outcrop of shale 33,000 years ago. An ostrich pecks at the grass, and atoms taken up from the shale and into the grass become part of the eggshell the ostrich lays.

New type of pulsating star discovered

A star that pulsates on just one side has been discovered in the Milky Way about 1500 light years from Earth. It is the first of its kind to be found and scientists expect to find many more similar systems as technology to …

Male size advantage drives evolution of sex change in reef fish

Some species of fish, notably parrotfish and wrasses living on coral reefs, change their biological sex as they age, beginning life as females and later becoming functionally male. New work from the University of California, …

‘Strange’ glimpse into neutron stars and symmetry violation

New results from precision particle detectors at the Relativistic Heavy Ion Collider (RHIC) offer a fresh glimpse of the particle interactions that take place in the cores of neutron stars and give nuclear physicists a new …

Groovy key to nanotubes in 2-D

Ultrathin carbon nanotubes crystals could have wonderous uses, like converting waste heat into electricity with near-perfect efficiency, and Rice University engineers have taken a big step toward that goal.

Study reveals collective dynamics of active matter systems

Flocks of starlings that produce dazzling patterns across the sky are natural examples of active matter—groups of individual agents coming together to create collective dynamics. In a study featured on the cover of the …

New study on COVID-19 estimates 5.1 days for incubation period

An analysis of publicly available data on infections from the new coronavirus, SARS-CoV-2, that causes the respiratory illness COVID-19 yielded an estimate of 5.1 days for the median disease incubation period, according to …

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Consumer & Gadgets
DirecTV’s days are numbered

Discovery points to origin of mysterious ultraviolet radiation

Billions of lightyears away, gigantic clouds of hydrogen gas produce a special kind of radiation, a type of ultraviolet light known as Lyman-alpha emissions. The enormous clouds emitting the light are Lyman-alpha blobs (LABs). …

Astronomers pinpoint rare binary brown dwarf

Astronomers working on ‘first light’ results from a newly commissioned telescope in Chile made a chance discovery that led to the identification of a rare eclipsing binary brown dwarf system.

Strong signals show how proteins come and go

A novel system to amplify gene expression signals could be a game-changer for scientists who study the regulatory processes in cells that are central to all life.

Ultrathin organic solar cell is efficient and durable

Scientists from the RIKEN, in collaboration with international partners, have succeeded in creating an ultrathin organic solar cell that is both highly efficient and durable. Using a simple post-annealing process, they created …

Glucose acts as a double edged sword on longevity factor SIRT1

Feeding and fasting cycles exert control over metabolism and energy utilization. Aberrations are known to cause metabolic diseases, liver dysfunctions and accelerated aging. Expression and activity of the anti-aging factor …

How technology can combat the rising tide of fake science

Science gets a lot of respect these days. Unfortunately, it’s also getting a lot of competition from misinformation. Seven in 10 Americans think the benefits from science outweigh the harms, and nine in 10 think science and …

Microbes play important role in soil’s nitrogen cycle

Under our feet, in the soil, is a wealth of microbial activity. Just like humans have different metabolisms and food choices, so do those microbes. In fact, microbes play an important role in making nutrients available to …

Researchers map protein motion

Cornell structural biologists took a new approach to using a classic method of X-ray analysis to capture something the conventional method had never accounted for: the collective motion of proteins. And they did so by creating …

Research on soldier ants reveals that evolution can go in reverse

Turtle ant soldiers look like real-life creatures straight out of a Japanese anime film. These tree-dwelling insects scuttle to and fro sporting shiny, adorably oversized heads, which they use to block the entrances of their …

‘Deceptively simple’ process could boost plastics recycling

Plastics are a victim of their own success, so inexpensive, easy to use and versatile that the world is awash in plastic waste. Now researchers from the University of Houston have reported a new method of producing polyolefins—made …

How a virus forms its symmetric shells

Viruses—small disease-causing parasites that can infect all types of life forms—have been well studied, but many mysteries linger. One such mystery is how a spherical virus circumvents energy barriers to form symmetric …

Bacteria potentially involved in the development of type 2 diabetes

Bacteria may be involved in the development of type 2 diabetes, according to a study published today in Nature Metabolism by researchers from Université Laval, the Québec Heart and Lung Institute (IUCPQ), and McMaster University.