Aryl radical formation by aryl halide bond cleavage by a N-heterocyclic carbene catalyst
Aryl halides with a benzene ring directly bonded to a halogen atom are readily available and chemically stable, so they are used as a source of benzene rings in organic synthesis. For example, a chemical reaction that generates a highly reactive aryl.....»»
Planet collision explains star’s brightening, then dimming
Emissions in infrared shot up, then visible light dropped two years later. Enlarge / Artist's conception of what the post-collision body of material might look like. (credit: MARK GARLICK) Planet formation is thought to.....»»
NASA asteroid sample contains life-critical water and carbon
A sample collected from the 4.5-billion-year-old asteroid Bennu contains abundant water and carbon, both vital materials for the formation of our planet, NASA revealed on Wednesday......»»
Young children who are close to their parents are more likely to grow up kind, helpful and "prosocial"
A loving bond between parents and their children early in life significantly increases the child's tendency to be "prosocial," and act with kindness and empathy towards others, research indicates......»»
Astronomers discover first step toward planet formation
Solving the mystery of how planets like Earth were formed is an important question for understanding the origin of life. Planets are thought to form when interstellar dust and gas collect in a protoplanetary disk surrounding a protostar, but it has b.....»»
6 things to know about NASA"s asteroid-exploring Psyche mission
The first-ever mission to study a metal-rich asteroid, Psyche aims to help scientists learn more about the formation of rocky bodies in our solar system......»»
Researchers propose radical change in how animal facial expressions are defined and studied
Researchers have developed a new method to analyze facial expressions, as part of efforts to better understand animal communication......»»
Rivian adds 400-plus-mile battery option to R1T, R1S; $1.5B bond issue planned
The EV startup is launching the "max pack" option for its electric pickup and crossover. Rivian reported 15,564 deliveries in the third quarter as manufacturing constraints ease......»»
How llamas help mitigate effects of climate change
Introducing llamas (Llama glama) into land exposed by retreating glaciers can speed the establishment of stable soils and ecosystem formation, mitigating some of the harmful effects of climate change, according to experimental research conducted by s.....»»
Bursts of star formation explain mysterious brightness at cosmic dawn
When scientists viewed the James Webb Space Telescope's (JWST) first images of the universe's earliest galaxies, they were shocked. The young galaxies appeared too bright, too massive and too mature to have formed so soon after the Big Bang. It would.....»»
What’s new on Amazon Prime Video in October 2023
Upload returns for season 3, Gen V continues, and a lot of James Bond movies are among what's new on Amazon Prime Video in October......»»
Researchers investigate role of water molecules in formation of condensates in cells
In order to fulfill their function, biological cells need to be divided into separate reaction compartments. This is sometimes done with membranes, and sometimes without them: the spontaneous segregation of certain types of biomolecules leads to the.....»»
Toyota is remaking its EV factories in 6 radical steps
Toyota is radically rebooting its famed manufacturing system for its next generation of Tesla-fighting electric vehicles, due in 2026. Automotive News synthesizes days of company briefings and demonstrations to deliver a step-by-step picture of the p.....»»
Researchers invent a new metallization method of modified tannic acid photoresist patterning
The micro/nano metal pattern formation is a key step in the assembly of various devices. However, ex situ approaches of metal patterning limited their industrial applications due to the poor stability and dispersion of metal nanoparticles. The in sit.....»»
Insights into ethylene copolymerization with linear and end-cyclized olefins using a metallocene catalyst
A research team led by Changjiang Wu at SINOPEC (Beijing) Research Institute of Chemical Industry Co., Ltd. in China has made important progress in understanding the polymerization behavior and thermal properties of copolymers formed through ethylene.....»»
Growth of "baby galaxies" witnessed with James Webb Space Telescope
Scientists have theorized how galaxies evolve, but details in their early phase of formation remained shrouded in celestial clouds of mystery......»»
Biological particles found to play crucial role in Arctic cloud ice formation
An international team of scientists from Sweden, Norway, Japan, and Switzerland, has presented research findings that reveal a crucial role of biological particles, including pollen, spores, and bacteria, in the formation of ice within Arctic clouds......»»
Researchers propose 3D printing of high-performance elastomers through vat photopolymerization
Acrylate-based ultraviolet (UV)-curable resins are currently used as raw materials to obtain desired performance by adjusting the types and ratios of oligomer and reactive monomers in the resin system. However, due to low degree of free-radical polym.....»»
Teams investigate material degradation process of carbon-based catalyst
Although a plethora of carbon-based catalysts have been developed to promote oxygen reduction reaction (ORR) in different electrochemical systems, the degradation process of those catalysts remains obscure to date. During certain steps of the ORR on.....»»
Computer simulations show how intermediate-mass black holes could form inside stellar clusters
An international consortium of astronomers, including staff from the Max Planck Institute for Astronomy, has successfully unraveled the intricate formation mechanisms of the elusive intermediate-mass black holes. They could represent the link between.....»»
Vega"s fuel-free CubeSats will use wings to keep in formation
Spain's trio of ANSER CubeSats, due to fly on Europe's next Vega launcher, will fly like a flock of birds in orbit—in more ways than one. Keeping in formation by following their leader, the three shoebox-sized satellite will image Iberian waters as.....»»