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December 21, 2020

ScienceDaily: Latest Science News

ScienceDaily: Latest Science News


Plants can be larks or night owls just like us

Posted: 20 Dec 2020 07:39 AM PST

Plants have the same variation in body clocks as that found in humans, according to new research that explores the genes governing circadian rhythms in plants.

King of the Cave: New centipede on top of the food chain in the sulphurous-soaked Movile

Posted: 18 Dec 2020 01:51 PM PST

A new species of endemic, troglobiont centipede was discovered by an international team of scientists in the Romanian cave Movile: a unique underground ecosystem, isolated several millions years ago during the Neogene, whose animal life only exists because of the chemosynthetic bacteria. As the largest Movile's inhabitant, the new species can easily be crowned as the 'king' of this 'hellish' ecosystem.

New class of cobalt-free cathodes could enhance energy density of next-gen lithium-ion batteries

Posted: 18 Dec 2020 01:51 PM PST

Researchers have developed a new family of cathodes with the potential to replace the costly cobalt-based cathodes typically found in today's lithium-ion batteries that power electric vehicles and consumer electronics.

The incredible, variable bacteria living in your mouth

Posted: 18 Dec 2020 01:51 PM PST

Researchers have examined the human oral microbiome and discovered tremendous variability in bacterial subpopulations living in certain areas of the mouth. In many cases, the team was able to identify a handful of genes that might explain a particular bacterial group's habitat specificity.

Low-income preschoolers exposed to nurturing care have with higher IQ scores later on

Posted: 18 Dec 2020 12:27 PM PST

Preschoolers living in impoverished communities who have access to a nurturing home environment have significantly higher intelligence quotient (IQ) scores in adolescence compared to those raised without nurturing care.

Shifting gears toward chemical machines

Posted: 18 Dec 2020 10:37 AM PST

Researchers have utilized a catalytic reaction that causes a two-dimensional, chemically-coated sheet to spontaneously 'morph' into a three-dimensional gear that performs sustained work.

Water limitations in the tropics offset carbon uptake from Arctic greening

Posted: 18 Dec 2020 10:18 AM PST

More plants and longer growing seasons in the northern latitudes have converted parts of Alaska, Canada and Siberia to deeper shades of green. Some studies translate this Arctic greening to a greater global carbon uptake. But new research shows that as Earth's climate is changing, increased carbon absorption by plants in the Arctic is being offset by a corresponding decline in the tropics.

Living environment affects the microbiota and health of both dogs and their owners

Posted: 18 Dec 2020 08:25 AM PST

In urban environments, allergic diseases are more common among dogs and their owners compared to those living in rural areas. Simultaneous allergic traits appear to be associated with the microbes found in the environment, but microbes relevant to health differ between dogs and humans.

New discovery brings analogue spintronic devices closer

Posted: 18 Dec 2020 08:25 AM PST

The observation of nonlinearity in electron spin-related processes in graphene makes it easier to transport, manipulate and detect spins, as well as spin-to-charge conversion. It also allows analogue operations such as amplitude modulation and spin amplification. This brings spintronics to the point where regular electronics was after the introduction of the first transistors.

New curriculum improves students' understanding of electric circuits in schools

Posted: 18 Dec 2020 08:25 AM PST

The topic of electricity often poses difficulties for many secondary school students in physics lessons. Researchers have now developed and empirically evaluated a new, intuitive curriculum as part of a major comparative study. The result: not only do secondary school students gain a better conceptual understanding of electric circuits, but teachers also perceive the curriculum as a significant improvement in their teaching.

Long non-coding RNA may play a key role in cardiovascular disease

Posted: 17 Dec 2020 12:40 PM PST

Through utilization of genetically modified high-risk atherosclerotic mice, researchers have identified and characterized Macrophage-Associated Atherosclerosis lncRNA Sequence (MAARS), which is expressed specifically in macrophages in atherosclerotic plaques and contributes to the progression of the disease.

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