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Phys.org / Spider spinneret evolution: How a genome duplication event 438 million years ago set the stage

Scientists have uncovered a 400-million-year-old genetic secret that gave spiders the ability to produce silk and weave their webs. Spiders didn't begin their journey on Earth in the same way as they are known today. Arthropods ...

3 hours ago in Biology
Phys.org / Beyond the eye of the beholder: Mathematically defining attributes essential to color perception

Research on the perception of color differences is helping resolve a century-old understanding of color developed by Erwin Schrödinger. Los Alamos scientist Roxana Bujack led a team that used geometry to mathematically define ...

2 hours ago in Other Sciences
Medical Xpress / Unveiling schizophrenia's neural and mental signatures with machine learning

Schizophrenia is a severe and often highly debilitating psychiatric disorder characterized by distorted emotions, thinking patterns and altered perceptions of reality, as well as mental impairments. This disorder typically ...

7 hours ago in Psychology & Psychiatry
Medical Xpress / Specialized sensor tracks wound pH continuously to monitor healing

In a study led by Assoc. Prof. Dr. Levent Beker from the Department of Mechanical Engineering at Koç University, researchers have developed a specialized wound dressing that incorporates a sensor that continuously measures ...

2 hours ago in Biomedical technology
Medical Xpress / A benchmark for antibodies: Open dataset aims to standardize sequencing and measurement

Antibodies are the immune system's precision tools for recognizing and neutralizing viruses, bacteria and other foreign substances that can make us ill. These proteins circulate in the bloodstream and are built from chains ...

2 hours ago in Immunology
Tech Xplore / Say what's on your mind, and AI can tell what kind of person you are

If you say a few words, generative AI will understand who you are—maybe even better than your close family and friends. A new University of Michigan study found that widely available generative AI models (e.g., ChatGPT, ...

2 hours ago in Consumer & Gadgets
Medical Xpress / Natural sunscreen compounds show potential to support skin health and blood pressure

Researchers have discovered that natural "sunscreen" compounds found in algae and cyanobacteria may also support skin and heart health. By comparing two mycosporine-like amino acids, the team showed for the first time that ...

2 hours ago in Health
Medical Xpress / Secondhand vape plumes could form lung-damaging radicals

Electronic cigarettes—or vapes—can release puffs of vapor in aromatic clouds. The health risks of breathing in this secondhand or passive vapor aren't fully understood. So, researchers reporting in Environmental Science ...

2 hours ago in Health
Phys.org / One of Earth's most abundant organisms is surprisingly fragile

A group of ocean bacteria long considered perfectly adapted to life in nutrient-poor waters may be more vulnerable to environmental change than scientists realized. The bacteria, known as SAR11, dominate surface seawater ...

5 hours ago in Biology
Phys.org / How brick-building bacteria react to toxic chemical in Martian soil

Bacteria that thrive on Earth may not make it in the alien lands of Mars. A potential deterrent is perchlorate, a toxic chlorine-containing chemical discovered in Martian soil during various space missions.

6 hours ago in Astronomy & Space
Phys.org / Tropical peatlands are a major source of greenhouse gas emissions, research reveals

Using a new method to track groundwater levels and greenhouse gas emissions, researchers uncover the climate impact of Southeast Asia's peatlands. In Indonesia, Malaysia, and other parts of Southeast Asia, vast areas spanning ...

3 hours ago in Earth
Phys.org / Corals' boldest cousins: Zoantharians bend the laws of evolution

In the realm of marine biogeography, there is a widely held scientific principle: the Atlantic and Indo-Pacific oceans are worlds apart. If you dive in Brazil and then in Okinawa, you expect to see entirely different groups ...

5 hours ago in Biology