Slippery, drippy goop makes Ralstonia bacteria devastating killers of plants, causing rapid wilting in tomato, potato, and a wide range of other crops, according to new research. The work, published Jan. 22 in Proceedings of the National Academy of Sciences, comes from an unusual collaboration between plant pathologists and engineers at the University of California, Davis.
A growing niche space, the manosphere, has been taking shape in today's online forums and social media, preaching an aggressive definition of what it means to be a man. It promotes traits such as misogyny, dominance, and opposition to feminism—behavior generally considered toxic—as the epitome of masculinity.
When pistachio hulls split before the nuts are harvested, insects and fungi can get inside, damaging the nut, costing farmers money and contaminating the nuts. About 4% of the overall crop experiences hull split, but some cultivars can split as much as 40% under certain conditions. Now, for the first time, scientists at the University of California, Davis, are seeking solutions for California's $2-billion-a-year pistachio industry.
A study led by University of Rhode Island Graduate School of Oceanography alumnus Jarod Snook, Ph.D., identified a long-term source of PFAS, or "forever chemicals," entering the Pawcatuck River from two historically contaminated textile mill waste retention ponds located in Bradford and Westerly, Rhode Island.
Catalysts are the invisible engines of hydrogen energy, governing both hydrogen production and electricity generation. Conventional catalysts are typically fabricated in granular particle form, which is easy to synthesize but suffers from inefficient use of precious metals and limited durability.
Researchers announced that they have achieved the world's first elucidation of how hydrogen produces free electrons through the interaction with certain defects in silicon. The achievement has the potential to improve how insulated gate bipolar transistors (IGBTs) are designed and manufactured, making them more efficient and reducing their power loss. It is also expected to open up possibilities for future devices using ultra-wide bandgap (UWBG) materials.
An international research team led by Prof. Dr. Sedat Nizamoğlu from the Department of Electrical and Electronics Engineering at Koç University has developed a next-generation, safe, and wireless stimulation technology for retinal degenerative diseases that cause vision loss.
It's Saturday! This week, in an eminently practical analysis of the Boltzmann brain conjecture, physicists put constraints on the idea that memories could arise from random fluctuations in entropy rather than reflecting the actual past of the universe—news you can use! Researchers managed to put thousands of sodium atoms in a "Schrödinger's cat" state. And an ancient mass grave revealed the impact of the earliest-known pandemic.
Graphene has drawn attention as a scientific curiosity owing to its record conductivities, strength and thermal properties. But now, it's starting to make its way into a number of real-world applications, from batteries to concrete, sensors and material composites. Its market is already worth billions and is set to boom in the next few years.
Ancient pine trees growing in the Iberian mountains of eastern Spain have quietly recorded more than five centuries of Mediterranean weather. Now, by reading the annual growth rings preserved in their wood, scientists have uncovered a striking message: today's storms and droughts are becoming more intense and more frequent than almost anything the region has experienced since the early 1500s.
Organic chemistry is packed with rules about structure and reactivity, especially when it comes to making and breaking chemical bonds. The rules governing how these bonds, which hold atoms together in molecules, form and the shapes they give molecules are often thought to be absolute, but UCLA organic chemists are pushing the boundaries of the possible.
A new three-way bond-breaking and making mechanism makes the synthesis of five-membered rings easier than before.
In a new study Indiana University researchers observed episodic memory in rats to a degree never documented before, suggesting that rats can serve as a model for complex cognitive processes often considered exclusively human. Unlike semantic memory, which involves isolated facts, episodic memory involves replaying events in the order and context in which they occurred.
The atmosphere is an important transport medium that carries microplastics to even the most remote parts of the world. These microplastics can be inhaled and pose a health risk to humans and animals. They can also settle out of the atmosphere and contaminate oceans and soils worldwide.
What do Thomas Edison and 2010 Nobel Prize in physics winners Konstantin Novoselov and Andre Geim have in common? According to a recent publication from the lab of Rice University's James Tour in ACS Nano, it could be graphene—an answer that might have confused Edison, who died almost 20 years before physicist P.R. Wallace proposed such a substance could exist and nearly 80 years before Novoselov and Geim were awarded a Nobel Prize for isolating and characterizing it.
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