Menu

Blog

Page 112

Nov 5, 2024

Investigating Critical Period Effects in Language Acquisition through Neural Language Models

Posted by in categories: neuroscience, policy

Ionut Constantinescu, Tiago Pimentel, Ryan Cotterell, Alex Warstadt ETH Zurich 2024 https://arxiv.org/abs/2407.

Children are better at learning a…


We’ve detected that JavaScript is disabled in this browser. Please enable JavaScript or switch to a supported browser to continue using x.com. You can see a list of supported browsers in our Help Center.

Continue reading “Investigating Critical Period Effects in Language Acquisition through Neural Language Models” »

Nov 5, 2024

How one remarkable cell transformed simple prehistoric sea creatures into today’s complex animals of land, sea and sky

Posted by in category: evolution

Discover the pivotal role of a single type of cell that sparked the incredible evolution from simple sea creatures of 800 million years ago to the diverse array of complex animals we see today.

Nov 5, 2024

Amazon starts drone deliveries in Arizona

Posted by in category: drones

Amazon has integrated Prime Air into its delivery network.

Nov 5, 2024

Hydrogen Sulfide and Gut Microbiota: Their Synergistic Role in Modulating Sirtuin Activity and Potential Therapeutic Implications for Neurodegenerative Diseases

Posted by in categories: biotech/medical, life extension, neuroscience

The intricate relationship between hydrogen sulfide (H2S), gut microbiota, and sirtuins (SIRTs) can be seen as a paradigm axis in maintaining cellular homeostasis, modulating oxidative stress, and promoting mitochondrial health, which together play a pivotal role in aging and neurodegenerative diseases. H2S, a gasotransmitter synthesized endogenously and by specific gut microbiota, acts as a potent modulator of mitochondrial function and oxidative stress, protecting against cellular damage. Through sulfate-reducing bacteria, gut microbiota influences systemic H2S levels, creating a link between gut health and metabolic processes. Dysbiosis, or an imbalance in microbial populations, can alter H2S production, impair mitochondrial function, increase oxidative stress, and heighten inflammation, all contributing factors in neurodegenerative diseases such as Alzheimer’s and Parkinson’s.

Nov 5, 2024

New Model Estimates CO2 Emissions from 22 Million U.S. Inland Waters

Posted by in categories: climatology, sustainability

What is the level of carbon emissions across the United States? This is what a recent study published in AGU Advances hopes to address as a team of researchers from the University of Massachusetts Amherst conducted the first nationwide analysis of carbon emissions across the United States with the goal of putting constraints on previous analyses regarding the amount of carbon emissions across the United States, also known as the carbon cycle. This study holds the potential to help researchers, climate scientists, and the public better understand the United States’ contribution to climate change and the steps that can be taken to mitigate them.

“We need to know how much CO2 is being generated so we can predict how it will respond to climate change,” said Dr. Matthew Winnick, who is an assistant professor of Earth, Geographic and Climate Sciences at the University of Massachusetts Amherst and a co-author on the study. “As temperature rises, we tend to think that a lot of the natural carbon cycle processes will respond to that and potentially amplify climate change.”

For the study, the researchers collected data on carbon emissions across more than 22 million rivers, lakes, and water reservoirs with the goal of developing a model that could put tighter constraints on previous carbon cycle models. In the end, the researchers’ models estimated approximately 120 million metric tons of carbon, which is approximately 25 percent lower than previous models which estimated approximately 159 million metric tons of carbon. The researchers note these more accurate findings could benefit carbon capturing methods to mitigate climate change.

Nov 5, 2024

Scientists Want to Teleport a Whole Human. A Quantum Breakthrough Could Make It Reality

Posted by in categories: particle physics, quantum physics

There’s just one catch: every atom in your body would be fully disassembled to the quantum level, effectively leaving your original body totally destroyed.

Nov 5, 2024

Plant-animal hybrid cells make solar-powered tissues, organs or meat

Posted by in categories: biotech/medical, chemistry

Scientists in Japan have created hybrid plant-animal cells, essentially making animal cells that can gain energy from sunlight like plants. The breakthrough could have major benefits for growing organs and tissues for transplant, or lab-grown meat.

Animal and plant cells have different energy-producing structures inside them. For animals, that’s mitochondria, which convert chemical energy from food into a form that our cells can use. Plants and algae, meanwhile, use chloroplasts, which perform photosynthesis to generate energy from sunlight to power their cells.

In a new study led by the University of Tokyo, the team inserted chloroplasts into animal cells, and found that they continued to perform photosynthetic functions for at least two days. The chloroplasts were sourced from red algae, while the animal cells were cultured from hamsters.

Nov 5, 2024

Lightning strikes kick off a game of electron pinball in space

Posted by in categories: climatology, particle physics, satellites

When lightning strikes, the electrons come pouring down.

In a new study, researchers at CU Boulder led by an undergraduate student have discovered a new link between weather on Earth and weather in space. The group used satellite data to show that lightning storms on our planet can knock especially high-energy, or “extra-hot,” electrons out of the inner radiation belt—a region of space filled with charged particles that surrounds Earth like an inner tube.

The team’s results could help satellites and even astronauts avoid dangerous radiation in space. This is one kind of downpour you don’t want to get caught in, said lead author Max Feinland.

Nov 5, 2024

Artificial Intelligence News (@artificialintelligencenews.in) • Instagram reel

Posted by in categories: Elon Musk, robotics/AI

1,004 likes, — artificialintelligencenews.in on November 3, 2024: ‘Elon Musk Explains How Neuralink Works’

Nov 5, 2024

Researchers develop high-quality nanomechanical resonators with built-in piezoelectricity

Posted by in category: quantum physics

Researchers at Chalmers University of Technology in Sweden and at the University of Magdeburg in Germany have developed a novel type of nanomechanical resonator that combines two important features: high mechanical quality and piezoelectricity. This development could open doors to new possibilities in quantum sensing technologies.

Page 112 of 12,052First109110111112113114115116Last