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43 articles from ScienceDaily

Controlling chemical catalysts with sculpted light

Using state-of-the-art fabrication and imaging, researchers watched the consequences of adding sculpted light to a catalyst during a chemical transformation. This work could inform more efficient -- and potentially new -- forms of catalysis.

RNA's mysterious folding process

Using data from RNA-folding experiments, the researchers generated the first-ever data-driven movies of how RNA folds as it is made by cellular machinery. By watching their videos of this folding occur, the researchers discovered that RNA often folds in surprising, perhaps unintuitive ways, such as tying itself into knots.

Researchers trace geologic origins of Gulf of Mexico 'super basin' success

The Gulf of Mexico holds huge untapped offshore oil deposits that could help power the U.S. for decades. According to researchers, the basin's vast oil and gas reserves are the result of a remarkable geologic past. Only a fraction of the oil has been extracted and much remains buried beneath ancient salt layers, just recently illuminated by modern seismic imaging.

Breathing easier with a better tracheal stent

New research is poised to drastically improve the use of tracheal stents for children with airway obstruction. Researchers demonstrate for the first time the successful use of a completely biodegradable magnesium-alloy tracheal stent that safely degrades and does not require removal.

Scientists identify contents of ancient Maya drug containers

Scientists have identified the presence of a non-tobacco plant in ancient Maya drug containers for the first time. The researchers detected Mexican marigold (Tagetes lucida) in residues taken from 14 miniature Maya ceramic vessels. The vessels also contain chemical traces present in two types of dried and cured tobacco.

Helium nuclei at the surface of heavy nuclei discovered

Scientists are able to selectively knockout nucleons and preformed nuclear clusters from atomic nuclei using high-energy proton beams. In an experiment the existence of preformed helium nuclei at the surface of several tin isotopes could be identified in a reaction. The results confirm a theory, which predicts the formation of helium clusters in low-density nuclear matter and at the surface of...

Stuck in a rut: Ocean acidification locks algal communities in a simplified state

Researchers have found that ocean acidification limits algal communities to a state of low diversity and complexity. Communities grown in waters rich in carbon dioxide (CO2) were dominated by turf algae, and had low biodiversity, ecological complexity and biomass. Communities grown under acidic conditions and then transferred to waters that weren't CO2-enriched increased their biodiversity and...

Spreading the sound

Scientists are studying the motion of sound waves in glassy materials using a new theoretical model and find that they can diffuse like fluids, which may lead to the design of more resilient touchscreens.