A systematic review of 27 studies maps how Gram-positive and Gram-negative bacteria use enzymes, thiols, metal homeostasis, and biofilm matrices to survive oxidative stress.

A Chinese pot experiment found that wheat straw biochar immobilized soil zinc most effectively while peanut shell biochar ...

As graduate unemployment rises and artificial intelligence reshapes the workplace, Bangladesh’s higher education system faces ...

Urea is trending across social media as a do-it-all skin-care ingredient, but evidence supports hydration and barrier benefits — not the antiaging claims made online.

Friendly Persistent diarrhea, bloating or cramps after sugar and starch deserve a targeted evaluation. The best test depends ...

Think you need a testosterone checked? A physician explains what symptoms should prompt testosterone screening, how to ...

A stress test measures how well your heart responds to physical exertion by monitoring heart rate, rhythm, and blood pressure. Doctors look for signs of ischemia — inadequate blood flow to the heart — ...

Explaining death to a child involves teaching four key concepts: death is irreversible, all life functions end, everything alive eventually dies, and there are physical causes of death. Most children ...

The roots of Russia's invasion of Ukraine go back decades and run deep. The current conflict is more than one country fighting to take over another; it is — in the words of one U.S. official — a shift ...

Friendly Positive anti-U1-RNP antibodies alone do not establish mixed connective tissue disease. Diagnosis requires a ...

To test whether interval likelihood ratios help improve medical decisions, we recruited more than 600 clinicians across four major U.S. academic institutions. Each participant was asked to read two ...