LND topic: human page 36

human

A Fingerprint From the Past

May 27, 2025

In Spain, a rock with a fingerprint and a red dot has sparked excitement among scientists. This rock, found in a shelter, is believed to be around 43, 000 years old. The red dot is thought to be a nose, making the rock look like a human face. This discovery raises questions about the artistic abilit

health

The Future of Medical AI: Beyond Simple Tests

May 27, 2025

Medical AI systems are becoming more advanced. They can handle a wide range of tasks. This is great, but there are some big questions. How do we know these systems are safe and useful? Right now, most tests use benchmarks. These benchmarks can have problems. They might use the same data that the AI

politics

Gaza's Ongoing Struggle: A Critical Look at Recent Events

May 26, 2025

The recent escalation in Gaza has left many people dead and injured. One of the most devastating incidents involved a school that was being used as a shelter. While people were sleeping, the school was struck multiple times, causing a fire that destroyed belongings and took many lives. This is not a

politics

Gaza's Ongoing Struggle: Lives Lost and Aid Blocked

May 26, 2025

In the heart of the Gaza Strip, a grim toll continues to rise. Over the last day, Israeli airstrikes have claimed the lives of at least 38 people, including a mother and her two young children who were seeking refuge in a tent. The situation in Gaza is dire, with hospitals in the north cut off and u

science

The Surprising Link Between Ancient Fish Scales and Your Tooth Sensitivity

May 24, 2025

The human body is full of mysteries. One of these is the sensitivity of our teeth. Ever wondered why a cold treat or a dentist's drill can make your teeth zing? The answer lies in the distant past, with ancient armored fish. These fish, living around 500 million years ago, had exoskeletons that wer

science

Far-UVC Light: Double-Edged Sword for Lung Health

May 24, 2025

The use of far-ultraviolet C (Far-UVC) light, specifically within the 200 to 235 nanometer range, has shown promise in killing germs. This type of light is being explored for various medical uses. However, its effectiveness against infections deep within the body, such as those in the lungs, is stil

technology

Seeing Beyond: The Future of Infrared Vision

May 23, 2025

Ever thought of seeing in the dark? Scientists have created contact lenses that let humans and mice see near-infrared light. This light is usually invisible to us, but these lenses convert it into visible colors. The secret? Special nanoparticles embedded in the lenses. These nanoparticles absorb in

science

Unlocking the Brain's Secrets: A New Look at Ex-Vivo MRI

May 23, 2025

The human brain remains one of the most intricate and least understood organs. Ex-vivo MRI scans, which are performed on brains outside the body, provide a unique window into this complexity. These scans allow for detailed anatomical mapping and integration with tissue studies. This makes them in

health

The Power of Positive Sexual and Reproductive Experiences

May 23, 2025

Sexual and reproductive health is a big deal in everyone's life. It's about more than just avoiding problems. It's about having the kind of sexual and reproductive experiences that make people happy and fulfilled. Most discussions and measurements focus on the negative aspects. They talk about what

science

The Evolution of Lice-Loving Bacteria

May 23, 2025

The way bacteria spread has changed a lot over time. Some bacteria have moved from ticks to lice. This switch often makes the bacteria more dangerous. Why and when this happened is a mystery. This is a story about one such bacteria, Borrelia recurrentis. A team of researchers dug up some ol