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Phys.org / Larger natural diamonds retain per-carat premium over lab-grown stones, analysis finds
Natural diamonds consistently command higher prices per carat than laboratory-grown synthetic diamonds, according to a large-scale analysis of online diamond sales published in the International Journal of Electronic Marketing ...
Phys.org / Egyptian blue in Iron Age Iran points to ancient connections
Egyptian blue, considered the world's earliest synthetic pigment, was prized for its stable blue hues and served as a common blue paint in Egypt as early as 5,000 years ago, as well as the base material for small items such ...
Medical Xpress / Detection of optic nerve inflammation enables earlier multiple sclerosis diagnoses
Multiple sclerosis (MS) is the most common chronic autoimmune disease of the central nervous system. An early and accurate diagnosis is crucial for improving the effectiveness of treatment and reducing nerve damage. To standardize ...
Phys.org / New hurricane graphic helps people identify watch areas, doesn't change risk perception
Hurricane warnings are only effective if people understand them. A new study by Florida State University faculty members in the School of Communication in the College of Communication and Information and the Department of ...
Tech Xplore / Should people marry AI agents?
The widespread use of conversational platforms such as ChatGPT and Gemini is raising important new ethical, anthropological and legal questions regarding the potential risks, misuses and shortcomings of artificial intelligence ...
Medical Xpress / Q&A: Lowering radiation dose in chest X-ray imaging yields same accuracy, researcher finds
Digital tomosynthesis (DTS) is an X-ray technique that provides sectional images with better lesion visibility than conventional chest radiography (CXR), while using far less radiation than CT. Masoud Jadidi will defend his ...
Medical Xpress / Keeping the 'human' in human services
In behavioral health, lived experience is an essential asset for peer supporters—those who use their own experiences to help people feel empowered, supported and hopeful. In a new policy paper published in Psychiatric Services, ...
Phys.org / Humans have a 'highly abundant' number of stable proteins that are not all predicted by genetic code
In 1968, the American biochemist and geneticist Marshall Nirenberg and his colleagues won the Nobel Prize in physiology or medicine for their work deciphering how an organism's proteins are directly linked to its genetic ...
Phys.org / Malaysian farmers, environmental groups call for rejection of GMO rice trial
A coalition of farmers, consumer associations and environmental groups is urging Malaysia's National Biosafety Board to reject a proposed field trial of genetically modified rice, warning Tuesday the project could pose risks ...
Tech Xplore / Blade-coating strategy advances scalable production of high-efficiency perovskite solar cells
Chinese scientists have developed a method that could facilitate the large-scale production of high-efficiency perovskite solar cells. The method employs a multidentate anchoring molecule-assisted co-deposition strategy to ...
Phys.org / Want a happier marriage? Study suggests one simple habit
Research has long shown that exercise benefits both physical and mental health. Now, a new study from researchers at BYU suggests that it may also strengthen marriages, especially when couples exercise together.
Phys.org / Sexual role identities among gay and bisexual men vary by age and region
A new study has found that sexual role identities among men who have sex with men vary systematically by age and geographic region.