Category Biology/Biotechnology

New 2D Metamaterial enhances Satellite Communication for 6G Networks

Free-space real-time measurements.
From: Multi-band ultrathin reflective metasurface for linear and circular polarization conversion in Ku, K, and Ka bands

A new, cheap, easily manufactured device could lead to improved satellite communication, high speed data transmission, and remote sensing, scientists say.

A team of engineers led by researchers from the University of Glasgow have developed an ultrathin 2D surface that harnesses the unique properties of metamaterials to manipulate and convert radio waves across the frequencies most commonly used by satellites.

Metamaterials are structures that have been carefully engineered to imbue them with properties that don’t exist in naturally occurring materials.

The team’s metamaterial, unveiled today in a new paper published in the ...

Read More

Sex Hormones Modulate the Immune System to Influence Disease Risk Differently, study finds

Researchers have uncovered how hormones profoundly affect our immune systems, explaining why men and women are affected by diseases differently.

Scientists from the Karolinska Institutet in Sweden and Imperial College London have shown for the first time which aspects of our immune systems are regulated by sex hormones, and the impacts this has on disease risk and health outcomes in males and females.

It is well established that diseases can affect men and women differently, due to subtle differences in our immune systems. For example, the immune condition systemic lupus erythematosus (SLE) is nine-times more likely to affect women, or with COVID-19, males are known to have a greater risk of acute first-time infections, while females have a greater risk of long-COVID.

But it ...

Read More

Brain Scans reveal that Mindfulness Meditation for Pain is Not a Placebo

Brain scans reveal that mindfulness meditation for pain is not a placebo
These brain scans show different neural signatures associated with pain response: the NAPS (left) is associated with the emotional experience of pain, the SIIPS-1 (center) is related to our expectations of pain and other psychosocial factors, and the NPS (right) is associated with pain intensity. Researchers at UC San Diego found that mindfulness meditation can modulate the NAPS and NPS, but not the SIIPS-1, showing that different parts of the brain are engaged in mindfulness-based pain relief compared to placebo. Credit: UC San Diego Health Sciences

Pain is a complex, multifaceted experience shaped by various factors beyond physical sensation, such as a person’s mindset and their expectations of pain...

Read More

Newly discovered Gene may Influence Longevity in Humans

Sleep, fasting, exercise, green porridge, black coffee, a healthy social life—there is an abundance of advice out there on how to live a good, long life. Researchers are working hard to determine why some people live longer than others, and how we get the most out of our increasingly long lives.

Now researchers from the Center for Healthy Aging, Department of Cellular and Molecular Medicine at the University of Copenhagen have discovered that a particular protein known as OSER1 has a great influence on longevity. The research is published in the journal Nature Communications.

“We identified this protein that can extend longevity...

Read More