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Crystal structures in super slow motion

Fri, 22 Jan 2021 15:44:14 EST

Laser beams are used to change the properties of materials in an extremely precise way. However, the underlying processes generally take place at such unimaginably fast speeds and at such a small scale that they have so far eluded direct observation. Researchers have now managed to film, for the first time, the laser transformation of a crystal structure with nanometer resolution and in slow motion in an electron microscope.

NSAIDs might exacerbate or suppress COVID-19 depending on timing, mouse study suggests

Fri, 22 Jan 2021 15:44:10 EST

New research shows that non-steroidal anti-inflammatory drugs (NSAIDs) reduced both antibody and inflammatory responses to SARS-CoV-2 infection in mice.

PTSD link to pandemic fears

Fri, 22 Jan 2021 10:20:24 EST

A new study of 1040 online participants from five western countries explores people's response to the stresses of the escalating pandemic, finding more than 13 percent of the sample had post-traumatic stress disorder (PTSD) related symptoms consistent with levels necessary to qualify for a clinical diagnosis.

Cargo delivery by polymers

Fri, 22 Jan 2021 10:16:41 EST

Degradable, bio-based polymers offer options for chemical recycling, and they can be a tool to store and release useful molecules. Scientists have developed a class of sugar-based polymers that are degradable through acid hydrolysis. The researchers also integrated 'cargo' molecules in the polymer, which are designed to split off after polymer degradation.

Rhesus macaques develop promising immune response to SARS-CoV-2

Fri, 22 Jan 2021 08:49:56 EST

In a promising result for the success of vaccines against COVID-19, rhesus macaque monkeys infected with the human coronavirus SARS-CoV-2 developed protective immune responses that might be reproduced with a vaccine.

COVID lockdown loneliness linked to more depressive symptoms in older adults

Fri, 22 Jan 2021 08:49:36 EST

Loneliness in adults aged 50 and over during the COVID-19 lockdown was linked to worsening depressive and other mental health symptoms, according to a large-scale online study.

Astronomers discover first cloudless, Jupiter-like planet

Thu, 21 Jan 2021 18:54:11 EST

Astronomers have detected the first Jupiter-like planet without clouds or haze in its observable atmosphere.

Bringing atoms to a standstill: Miniaturizing laser cooling

Thu, 21 Jan 2021 16:31:38 EST

Scientists have miniaturized the optical components required to cool atoms down to a few thousandths of a degree above absolute zero, the first step in employing them on microchips to drive a new generation of super-accurate atomic clocks, enable navigation without GPS, and simulate quantum systems.

Giant sand worm discovery proves truth is stranger than fiction

Thu, 21 Jan 2021 16:31:34 EST

Researchers have found evidence that large ambush-predatory worms -- some as long as two meters -- roamed the ocean floor near Taiwan over 20 million years ago.

New insights into the link between sunlight exposure and kidney damage

Thu, 21 Jan 2021 16:31:32 EST

A new collaborative study reveals unexpected insights into how skin exposure to ultraviolet light can worsen clinical symptoms in autoimmune diseases such as lupus.

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