127 articles from MONDAY 25.10.2021
The world is supposed to share the cost of fighting climate change. Here's how that works
One of the key tenets of the 2015 Paris Agreement was that richer countries such as Canada would provide financial assistance to developing countries to help them achieve their climate targets. We take a look at how the financing is supposed to work and how countries are doing in meeting the promised $100 billion US a year...
‘Nanozyme’ therapy prevents harmful dental plaque build-up
- ScienceDaily
- 21/10/25 23:21
FDA-approved iron oxide nanoparticles, delivered in a mouth rinse, can suppress the growth of dental plaque and kill bacteria responsible for tooth decay, according to a new study. The nanoparticles act as enzymes to activate hydrogen peroxide in a way that precisely targets harmful microbes and spares normal tissue.
Urban areas across the US are undercounting greenhouse gas emissions
- ScienceDaily
- 21/10/25 23:21
Methane emissions from the distribution and use of natural gas across U.S. cities are 2 to 10 times higher than recent estimates from the Environmental Protect Agency, according to a new study. In Boston, methane emissions from the natural gas system are six times higher than recent estimates by the Massachusetts DEP and have not significantly changed in eight years, despite legislation aimed at...
New synthesis process paves way for more efficient lasers, LEDs
- ScienceDaily
- 21/10/25 23:21
Researchers have developed a new process that makes use of existing industry standard techniques for making III-nitride semiconductor materials, but results in layered materials that will make LEDs and lasers more efficient.
Call-and-response circuit tells neurons when to grow synapses
- ScienceDaily
- 21/10/25 23:21
Brain cells called astrocytes play a key role in helping neurons develop and function properly, but there's still a lot scientists don't understand about how astrocytes perform these important jobs. Now, a team of scientists has found one way that neurons and astrocytes work together to form healthy connections called synapses. This insight into normal astrocyte function could help scientists...
Scientists reveal genetic secrets of stress-tolerant mangrove trees
- ScienceDaily
- 21/10/25 23:21
Researchers have decoded the genome of the mangrove tree, Bruguiera gymnorhiza, and revealed how this species regulates its genes in order to cope with stress. Their findings could one day be used to help other plants be more tolerant to stress.
Tiny microscopic hunters could be a crystal ball for climate change
- ScienceDaily
- 21/10/25 23:20
Tiny unicellular creatures called protists could keep greenhouse gases out of the atmosphere by gobbling up bacteria that emit CO2, researchers say. Now, a study finds that a few simple measures of a protist's size and shape can be powerful predictors of how they might respond to global warming themselves.
Topological valley Hall edge solitons in photonics
- ScienceDaily
- 21/10/25 23:17
A research team recently discovered a novel kind of topological edge soliton that is independent of magnetic field. The valley Hall edge soliton inherits its topological protection from its linear counterpart and does not require any external magnetic field. The result is a light beam that is robust, localized, and maintains its shape during propagation over distance.
Nearly 500 ancient ceremonial sites found in southern Mexico
- ScienceDaily
- 21/10/25 23:17
A team of international researchers reported last year that they had uncovered the largest and oldest Maya monument -- Aguada Fénix. That same team has now uncovered nearly 500 smaller ceremonial complexes that are similar in shape and features to Aguada Fénix. The find transforms previous understanding of Mesoamerican civilization origins and the relationship between the Olmec and the Maya...
Study finds nearly 500 ancient ceremonial sites in southern Mexico
A team of international researchers led by the University of Arizona reported last year that they had uncovered the largest and oldest Maya monument—Aguada Fénix. That same team has now uncovered nearly 500 smaller ceremonial complexes that are similar in shape and features to Aguada Fénix. The find transforms previous understanding of Mesoamerican civilization origins and the relationship...
Researchers identify new threat to American chestnut trees
For lumber companies, the American chestnut was a nearly perfect tree—tall, straight, rot-resistant and easy to split. It also was prolific, sending up new shoots that grew quickly.
Hertz to buy 100,000 Teslas for its rental fleet by next year
Hertz announced Monday that it will buy 100,000 electric vehicles from Tesla, one of the largest purchases of battery-powered cars in...
Signs of first planet found outside our galaxy
Astronomers have found hints of what could be the first planet ever to be discovered outside our galaxy.
Study explores how climate change may affect rain in U.S. Corn Belt
Air humidity is more important than soil moisture in influencing whether it rains in the United States Corn Belt, an agricultural area in the Midwest, stretching from Indiana to Nebraska and responsible for more than 35% of the world's most important grain crop, according to a new study by Penn State researchers.
The human GID complex engages two independent modules for substrate recruitment
A new paper by the Peter group of the ETH Zurich's Institute of Biochemistry (IBC) finds that the human GID E3 ubiquitin ligase forms a tetrameric complex with two distinct substrate-recruitment modules, namely WDR26-RanBP9 and GID4-ARMC8a. Although the shorter ARMC8b isoform stably assembles into the hGID complex, it lacks the ability to recruit the GID4 substrate-receptor.
Bezos' Blue Origin announces plans for private space station
Jeff Bezos' Blue Origin on Monday announced it wants to launch a space station that will house up to 10 people in the second half of the decade, as the race to commercialize the cosmos heats up.
Biophysics analysis made easy with an online tool
EMBL Hamburg's García Alai Team has released eSPC, a freely available online platform for analyzing molecular biophysics data from a range of experimental techniques. The tool enables scientists around the world to easily analyze their data without the need to travel to the laboratory where the data was generated.
One plus one does not equal two: Research team investigates receptors that form pairs on the surface of cells
There are a number of G protein-coupled receptors in human cells. As an important component of the cell membrane, these proteins are responsible for detecting different stimuli in the surroundings of a cell within the body and transferring this information to the cell interior. They may act individually or in pairs, and this can have a crucial effect on their function. Together with colleagues...
Sloshing electrons in a charge density wave
In the latest edition of Physical Review B, UvA Ph.D. candidate Xuanbo Feng (QuSoft and IoP) and colleagues write about their recent experiments on a material that can go from a normal metal state to a more exotic state known as a "charge density wave state."
Sharpest images ever reveal the patchy face of living bacteria
The sharpest images ever of living bacteria have been recorded by UCL researchers, revealing the complex architecture of the protective layer that surrounds many bacteria and makes them harder to be killed by antibiotics.
Urban areas across the US are undercounting greenhouse gas emissions
Methane emissions from the distribution and use of natural gas across U.S. cities are 2 to 10 times higher than recent estimates from the Environmental Protect Agency, according to a new study from the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS).
Clues from the ancient past can help predict abrupt climate change
Climate 'tipping points' can be better understood and predicted using climate change data taken from the ancient past, new research shows.
New study finds black spruce trees struggling to regenerate amid more frequent arctic fires
A new study, published in the Proceedings of the National Academy of Sciences (PNAS), finds that black spruce trees—a key species on the boreal landscape for millennia—are losing their resilience and capacity to regenerate in the face of warming temperatures and increasingly frequent Arctic wildfires. A continuation of this trend could result in a landscape-wide ecological shift that would...