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Dec 9, 2024

‘Climatopias’: Researchers evaluate effectiveness of climate-inspired urban designs

Posted by in categories: climatology, sustainability

A pair of new studies by scientists at the University of Miami Rosenstiel School of Marine, Atmospheric, and Earth Science and the School of Architecture, shed new light on the potential of climate-inspired architectural and urban design proposals, termed “climatopias,” to effectively address climate change challenges. These studies analyze both specific high-profile projects and a broader range of proposals, providing valuable frameworks for evaluating their effectiveness, feasibility, and social justice implications.

The first paper focuses on a detailed analysis of four prominent climatopic design projects. Utilizing a novel evaluation approach, the researchers assessed each project on its effectiveness, justice, and feasibility.

Key findings indicate that for climatopias to serve as viable climate solutions, they must prioritize their embodied , feature affordable and participatory designs, and possess the potential for actual implementation or stimulate critical discourse around decarbonization and adaptation strategies, enriching in climate resilience. The findings are published in the journal One Earth.

Dec 9, 2024

Theory-based approach gives access to quarks’ tiny transverse motion within protons

Posted by in category: particle physics

Nuclear theorists at Brookhaven National Laboratory and Argonne National Laboratory have successfully employed a new theoretical approach to calculate the Collins-Soper kernel, a quantity that describes how the distribution of quarks’ transverse momentum inside a proton changes with the collision energy.

The research is published in the journal Physical Review D.

The new calculation precisely matches model-based reconstructions from particle collision data. It is particularly effective for quarks with low transverse momenta, where earlier methods fell short.

Dec 9, 2024

Stimulating parts of the brain can help the paralysed to walk again

Posted by in categories: biotech/medical, neuroscience

A new study is shedding light on how stimulating the right bits of the brain can produce dramatic—and seemingly permanent—improvements in the ability of paralysed patients to walk again https://econ.st/3DfZk5L

Photo: NeuroRestore / EPFL 2024


Implanted electrodes allowed one man to climb stairs unaided.

Continue reading “Stimulating parts of the brain can help the paralysed to walk again” »

Dec 9, 2024

Dietary Patterns and Fertility

Posted by in category: biotech/medical

Diet has a key role in the reproductive axis both in males and females. This review aims to analyze the impacts of different dietary patterns on fertility. It appears that the Mediterranean diet has a predominantly protective role against infertility, while the Western diet seems to be a risk factor for infertility. Moreover, we focus attention also on dietary patterns in different countries of the World (Middle Eastern diet, Asian diet). In particular, when analyzing single nutrients, a diet rich in saturated fatty acids, cholesterol, animal proteins, and carbohydrates with high glycemic index is highly associated with male and female infertility. Finally, we evaluate the effects of vegetarian, vegan, and ketogenic diets on fertility, which seem to be still unclear.

Dec 9, 2024

Study identifies 13 proteins strongly associated with brain aging

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

Thirteen proteins linked to brain aging in humans are identified in a Nature Aging paper. Changes in the concentrations of these blood proteins may peak at 57, 70, and 78 years old in humans, and suggest that these ages may be important for potential interventions in the brain aging process.

It is estimated that by 2050 the number of individuals aged 65 years and over will exceed 1.5 billion globally, highlighting the need for a deeper understanding of the aging process—particularly in relation to the .

The prevalence of neurodegenerative disorders, such as dementia, is known to increase with aging; however, effective therapies are still limited. The early identification of and intervention in could help us to prevent such disorders.

Dec 9, 2024

Genetic code discovery could redefine understanding of cancer origins

Posted by in categories: biotech/medical, genetics

A group of scientists at VCU Massey Comprehensive Cancer Center has revealed a new genetic code that acts like a cancer ringleader, recruiting and deploying a gang of tumor cells to incite a biological turf war by invading healthy organs and overpowering the normal cells.

This discovery— published today, Dec. 9, in Nature Biotechnology —could unveil an entirely different understanding of the origins of cancer within the body, as well as offer insight into new treatment strategies that could target the growth of tumors in their earliest stages.

The study authors have also developed an intravenous therapy that empowers healthy cells to mount an and build up a defensive resistance against these invading tumor cells. This treatment has already been proven effective in ovarian tumors, but the implications of this research could be universal to all .

Dec 9, 2024

AI-powered tutor, teaching assistant tested as a way to help educators and students

Posted by in categories: chemistry, education, robotics/AI

We are about to show you a technological innovation that could, one day, change the way every child in every school in America is taught. It’s an online tutor powered by artificial intelligence designed to help teachers be more efficient… and students learn more effectively. It’s called Khanmigo–conmigo means “with me,” in Spanish. And Khan…is its creator…Sal Khan, the well-known founder of Khan Academy — whose lectures and educational software have been used for years by tens of millions of students and teachers in the U.S. and around the world. Khanmigo was built with the help of OpenAI, the creator of ChatGPT. Its potential is staggering, but it’s still very much a work in progress. It’s being piloted in 266 school districts in the U.S. in grades three-12. We went to Hobart High School in Indiana to see how it works.

Melissa Higgason: Good morning, just a normal day in chem, right?

At eight in the morning Melissa Higgason knows it’s not always easy to get 30 high schoolers excited about chemistry.

Dec 9, 2024

Soft e-skin utilizes magnetic fields to independently sense three-axis forces

Posted by in categories: biotech/medical, cyborgs, mathematics, quantum physics, robotics/AI, supercomputing

Science and Technology: Google said its quantum computer, based on a computer chip called Willow, needed less than five minutes to perform a mathematical calculation that one of the world’s most powerful supercomputers could not complete in 10 septillion years, a length of time that exceeds the age of the known universe.


Electronic skins (e-skins) are flexible sensing materials designed to mimic the human skin’s ability to pick up tactile information when touching objects and surfaces. Highly performing e-skins could be used to enhance the capabilities of robots, to create new haptic interfaces and to develop more advanced prosthetics.

In recent years, researchers and engineers have been trying to develop e-skins with individual tactile units (i.e., taxels) that can accurately sense both normal (i.e., perpendicular) and shear (i.e., lateral) forces. While some of these attempts were successful, most existing multi-axis sensors are based on intricate designs or require complex fabrication and calibration processes, which limits their widespread deployment.

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Dec 9, 2024

A new biodegradable material to replace certain microplastics

Posted by in categories: food, sustainability

Microplastics are an environmental hazard found nearly everywhere on Earth, released by the breakdown of tires, clothing, and plastic packaging. Another significant source of microplastics is tiny beads that are added to some cleansers, cosmetics, and other beauty products.

In an effort to cut off some of these microplastics at their source, MIT researchers have developed a class of biodegradable materials that could replace the plastic beads now used in beauty products. These polymers break down into harmless sugars and amino acids.


MIT researchers developed biodegradable materials that could replace the plastic microbeads now used in beauty products. The materials could also be used to encapsulate nutrients for food fortification.

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Dec 9, 2024

Citation tool offers a new approach to trustworthy AI-generated content

Posted by in categories: biotech/medical, education, health, law, robotics/AI

Chatbots can wear a lot of proverbial hats: dictionary, therapist, poet, all-knowing friend. The artificial intelligence models that power these systems appear exceptionally skilled and efficient at providing answers, clarifying concepts, and distilling information. But to establish trustworthiness of content generated by such models, how can we really know if a particular statement is factual, a hallucination, or just a plain misunderstanding?

In many cases, AI systems gather external information to use as context when answering a particular query. For example, to answer a question about a medical condition, the system might reference recent research papers on the topic. Even with this relevant context, models can make mistakes with what feels like high doses of confidence. When a model errs, how can we track that specific piece of information from the context it relied on — or lack thereof?

To help tackle this obstacle, MIT Computer Science and Artificial Intelligence Laboratory (CSAIL) researchers created ContextCite, a tool that can identify the parts of external context used to generate any particular statement, improving trust by helping users easily verify the statement.

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