Phys.org news

Phys.org / 4-D bioengineering materials bend, curve like natural tissue

Tissue engineering has long-depended on geometrically static scaffolds seeded with cells in the lab to create new tissues and even organs. The scaffolding material—usually a biodegradable polymer structure—is supplied ...

1 hour ago in Chemistry
Phys.org / Plants set a 'bedtime' alarm to ensure their survival, new study shows

Plants have a metabolic signal that adjusts their circadian clock in the evening to ensure they store enough energy to survive the night, a new study reveals.

1 hour ago in Biology
Phys.org / Scientists use lipid nanoparticles to precisely target gene editing to the liver

The genome editing technology CRISPR has emerged as a powerful new tool that can change the way we treat disease. The challenge when altering the genetics of our cells, however, is how to do it safely, effectively, and specifically ...

1 hour ago in Nanotechnology
Phys.org / Scientists describe 'hidden biodiversity crisis' as variation within species is lost

The rapid loss of variation within species is a hidden biodiversity crisis, according to the authors of a new study looking at how this variation supports essential ecological functions and the benefits nature provides for ...

1 hour ago in Biology
Phys.org / On calm days, sunlight warms the ocean surface and drives turbulence

In tropical oceans, a combination of sunlight and weak winds drives up surface temperatures in the afternoon, increasing atmospheric turbulence, unprecedented new observational data collected by an Oregon State University ...

1 hour ago in Earth
Phys.org / Velcro-like cellular proteins key to tissue strength

Where do bodily tissues get their strength? New University of Colorado Boulder research provides important new clues to this long-standing mystery, identifying how specialized proteins called cadherins join forces to make ...

1 hour ago in Biology
Phys.org / New study challenges 'established' mechanism about selectivity of cellular ion channels

The cell membranes of all organisms contain ion channels that permit ions to pass into or out of the cell, and these channels play extremely important roles in fundamental physiological processes such as heartbeats and the ...

1 hour ago in Biology
Phys.org / Optimally promoting biodiversity in agricultural landscapes

Due to modern agriculture, biodiversity across many species groups is in decline. Over the last three decades, attempts have been made to counteract this with agri-environmental schemes at various levels—from the national ...

1 hour ago in Biology
Phys.org / COVID-19 lockdown highlights ozone chemistry in China

In early 2020, daily life in Northern China slammed to a halt as the region entered a strict period of lockdown to slow the spread of COVID-19. Emissions from transportation and industry plummeted. Emissions of nitrogen oxides ...

1 hour ago in Earth
Phys.org / Gamma-ray and optical flares detected from the blazar S5 1803+784

Using NASA's Fermi spacecraft, astronomers have conducted a long-term monitoring campaign of a blazar known as S5 1803+784 and have identified several gamma-ray and optical flares from this source. The finding is detailed ...

7 hours ago in Astronomy & Space
Phys.org / Climate network detects precursor of Pacific Decadal Oscillation phase transition

Pacific Decadal Oscillation (PDO), one of the main internal decadal climate variabilities, has substantial impacts on climate and environment.

9 hours ago in Earth
Phys.org / Coastal flooding enhances methane buildup in forests

Forests are typically thought of as carbon sinks, absorbing more greenhouse gases from the atmosphere than they release. Trees and plants suck in carbon dioxide during photosynthesis and release oxygen back into the air. ...

8 hours ago in Earth