Dr. Graf also notes that for extremely sensitive, dry, or rosacea-prone skin, glycolic acid might be too harsh altogether. “Gentler exfoliants, such as lactic acid or polyhydroxy acids (PHAs), might ...

Abstract: Most of the existing surface area measurement methods suffer from poor efficiency, low precision, and high computational cost, especially for inaccessible, large-scale, rough, and curved ...

Can you chip in? This year we’ve reached an extraordinary milestone: 1 trillion web pages preserved on the Wayback Machine. This makes us the largest public repository of internet history ever ...

2024 was the warmest year in the 175-year observational record. It was likely the first calendar year to be more than 1.5°C above the pre-industrial era, with a global mean near-surface temperature of ...