Ibram X. Kendi: If the Supreme Court Allows Trump on the Ballot‚ the Confederacy Wins‚ or Something

Social media platforms Facebook‚ Instagram‚ Snapchat‚ TikTok‚ X (formerly Twitter)‚ and YouTube collectively derived nearly $11 billion in advertising revenue from U.S.-based users younger than 18 in 2022‚ according to a new study led by Harvard T.H. Chan School of Public Health. The study is the first to offer estimates of the number of youth users on these platforms and how much annual ad revenue is attributable to them.

Researchers at the University of Warsaw's Faculty of Physics with colleagues from Stanford University and Oklahoma State University have introduced a quantum-inspired phase-imaging method based on light intensity correlation measurements that is robust to phase noise.

From falls to football tackles‚ most blows to the head occur at odd angles. And those impacts trigger simultaneous linear and rotational head motions. The rotating movement in particular causes shear strain‚ which is especially damaging to the brain.

Single-use plastics are a major environmental concern‚ but now‚ rather than being disposed of as garbage‚ used plastic bags from the grocery store could be utilized to carry out a reaction that can detoxify hazardous chemicals.

Erosion of Earth's topography entrains sediment in rivers flowing across mountains‚ canyons and other naturally steep landscapes within the catchment. This silt‚ sand and gravel is transported variably by suspension in the water column‚ bouncing along the river bed (saltation)‚ or rolling larger pebbles (traction). With a deceleration in water velocity‚ and therefore carrying capacity‚ as topography flattens‚ this material is deposited in a fan shape at the mouth of the river on the shallower plain of the break in slope‚ becoming progressively finer-grained with distance from the source.

Forests on the west slope of Oregon's Cascade Range experienced fire much more often between 1500 and 1895 than had been previously thought‚ according to new research by scientists at Oregon State University.

Neutron-star cores contain matter at the highest densities reached in our present-day universe‚ with as much as two solar masses of matter compressed inside a sphere of 25 km in diameter. These astrophysical objects can indeed be thought of as giant atomic nuclei‚ with gravity compressing their cores to densities exceeding those of individual protons and neutrons many-fold.

For decades‚ a substantial number of proteins‚ vital for treating various diseases‚ have remained elusive to oral drug therapy. Traditional small molecules often struggle to bind to proteins with flat surfaces or require specificity for particular protein homologs. Typically‚ larger biologics that can target these proteins demand injection‚ limiting patient convenience and accessibility.

Using the AstroSat spacecraft‚ astronomers from the Birla Institute of Technology and Science in Pilani‚ India‚ have investigated a nearby open cluster NGC 6940. Results of the observational campaign‚ published December 21 on the pre-print server arXiv‚ shed more light on the properties and stellar populations of this cluster.