Phys.org news

Phys.org / Geological archives may predict our climate future

By analyzing 56-million-year-old sediments, a UNIGE team has measured the increase in soil erosion caused by global warming, synonymous with major flooding.

Jun 25, 2024 in Earth
Phys.org / Study identifies gene targets to combat cognitive decline

Researchers have identified the possible mechanisms by which long-lived mutants of the model system Caenorhabditis elegans are able to maintain learning and memory later in life while some experience cognitive decline.

Jun 25, 2024 in Biology
Phys.org / Researchers identify a cheaper, more convenient method to detect asbestos

For decades, a laboratory procedure known as transmission electron microscopy (TEM) has been used to test for asbestos in samples taken at construction sites.

Jun 25, 2024 in Chemistry
Phys.org / Quantum state mixing in photobiology: New insight from ultrafast terahertz Stark spectroscopy

The membrane protein bacteriorhodopsin is a proton pump, in which proton transport is initiated by the light-induced isomerization of the chromophore retinal. The molecular quantum states involved in this ultrafast reaction ...

Jun 25, 2024 in Physics
Phys.org / New fluorescent reporting system illuminates accumulation of unfolded proteins in endoplasmic reticulum

The endoplasmic reticulum (ER) is a major organelle responsible for protein folding and trafficking. Protein folding stress in the ER can lead to the accumulation of unfolded or misfolded proteins, known as ER stress, which ...

Jun 25, 2024 in Biology
Phys.org / Detecting intelligent life that's light years away: Greenhouse gases could signal alien activity

If aliens modified a planet in their solar system to make it warmer, we'd be able to tell. A new UC Riverside study identifies the artificial greenhouse gases that would be giveaways of a terraformed planet.

Jun 25, 2024 in Astronomy & Space
Phys.org / Global South health care practices contribute to spread of antimicrobial resistance across the world, study suggests

Many bacteria resistant to multiple antibiotics originate in Pakistan and other parts of the Indian subcontinent. Infections caused by these bacteria are challenging to treat; longer treatment with broad-spectrum antibiotics ...

Jun 25, 2024 in Biology
Phys.org / Hidden mechanisms behind hermaphroditic plant self-incompatibility revealed

A new study presents an evolutionary-biophysical model that sheds new light on the evolution of the collaborative non-self recognition self-incompatibility, a genetic mechanism in plants that prevents self-fertilization and ...

Jun 25, 2024 in Biology
Phys.org / Study reveals how one enzyme hitches a ride on another to recognize tRNA

Imagine your body as a highly organized factory where workers tirelessly assemble proteins around the clock. These proteins are the machines and scaffolds that make up your body and are essential for various functions. In ...

Jun 25, 2024 in Biology
Phys.org / Ferroptosis: Comprehensive review of important cell death mechanism

Ferroptosis is a cell death mechanism that has only become known comparatively recently, being named in 2012. This so-called non-apoptotic cell death occurs when too many oxygen radicals and free iron are present in a cell. ...

Jun 25, 2024 in Biology
Phys.org / New tool maps microbial diversity with unprecedented details

Researchers from the Max Planck Institute for Biology Tübingen have developed the groundbreaking tool SynTracker. SynTracker expands traditional microbial analysis by considering genomic structural variation to complement ...

Jun 25, 2024 in Biology
Phys.org / Merging AI and human efforts to tackle complex mathematical problems

By rapidly analyzing large amounts of data and making accurate predictions, artificial intelligence (AI) tools could help to answer many long-standing research questions. For instance, they could help to identify new materials ...

Jun 24, 2024 in Other Sciences