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.....»»
Webb findings support long-proposed process of planet formation
Scientists using James Webb Space Telescope just made a breakthrough discovery in revealing how planets are made. By observing water vapor in protoplanetary disks, Webb confirmed a physical process involving the drifting of ice-coated solids from the.....»»
Supermassive black holes shut down star formation during cosmic noon, says astronomer
Since it became operational almost two years ago, the James Webb Space Telescope (JWST) has produced countless breathtaking images of the universe and enabled fresh insights into how it evolved......»»
New Webb images show gas-rich baby galaxies setting the early universe alight
New images from the James Webb Space Telescope (JWST) have helped Australian astronomers unlock secrets of how infant galaxies started an explosion of star formation in the very early universe......»»
Team synthesizes a new polyoxometalate-based metal-organic complex
A research team has synthesized a new polyoxometalate-based metal-organic complex that they then tested as a catalyst for the oxidation reactions of various sulfides. They found that the complex possesses excellent catalytic performance, good reusabi.....»»
Tuning properties of membrane and catalyst layers optimizes reactors for fuel cells and more
Ethylene is a chemical widely used as a feedstock for producing polymers and industrial chemicals. Oxidative coupling of methane (OCM) is a promising, energy-efficient way of creating ethylene from natural gas by reacting methane with oxygen. However.....»»
New research sheds light on early galaxy formation
Researchers have developed a new computer simulation of the early universe that closely aligns with observations made by the James Webb Space Telescope (JWST)......»»
Research shows bone density is maintained by proteins that are also involved in hair color
Bone is maintained via a delicate balance between formation and resorption, and its imbalance leads to bone related diseases like osteoporosis, rheumatism and periodontitis......»»
Astronomers capture formation of a powerful cosmic jet
Using a network of radio telescopes on Earth and in space, astronomers have captured the most detailed view ever of a jet of plasma from a supermassive black hole. The jet travels at nearly the speed of light and shows complex, twisted patterns near.....»»
Radical new forecast shows how rapidly the energy economy is changing
Economics, policies will revolutionize energy, still stick us with over 2° C warming. Enlarge (credit: Yaorusheng) Humanity is on the cusp of radical changes in how we produce and consume energy, according to a new.....»»
Royal Charter storm of 1859: How an almighty tempest led to the birth of the UK"s shipping forecast
In British weather history, one storm stands out as a catalyst for change—the Royal Charter Storm of 1859. This devastating tempest off the west coast of Britain played a pivotal role in the founding of the shipping forecast and has had an enduring.....»»
Global sea-level fall led to formation of Ediacaran-Cambrian unconformity in North China Craton, finds study
In many blocks on the Earth, the boundary between the Phanerozoic and Precambrian is consistently characterized by a huge sedimentary gap—the Great Unconformity......»»
Ultra-long room temperature phosphorescence of indium-based organic inorganic metal halide
A study published in the journal Science China Chemistry found that PBA3[InCl6]·H2O exhibits a special "herringbone" stacking mode that enables abundant weak interactions between organic ligands and metal halide units. While the light source with 42.....»»
Does urbanization trigger plant evolution?
Urbanization and human activities have transformed a significant proportion of the land on Earth, resulting in the formation of urban environments. These urban environments are man-made habitats that often impose several selective pressures on their.....»»
New observations confirm important step in star formation
New observations have confirmed a key step in the process of star formation: a rotating "cosmic wind" made of molecules, which is vitally important for collapsing gas clouds to contract sufficiently so as to form a hot, dense young star......»»
Rivian"s bond issue does not reflect concerns around EV maker"s financial health, CEO says
Rivian's earlier-than-expected bond issuance this month was meant to strengthen the EV maker's balance sheet before geopolitical risks tighten capital markets and does not reflect any concerns around its cash and operations, its CEO told Reuters on T.....»»
Rivian"s bond issue does not reflect concerns around EV maker"s financial health -CEO
Rivian's earlier-than-expected bond issuance this month was meant to strengthen the EV maker's balance sheet before geopolitical risks tighten capital markets and does not reflect any concerns around its cash and operations, its CEO told Reuters on T.....»»
Study examines how religious faith bolsters family hope and unity
A new study from Brigham Young University finds that a family's religious beliefs and practices are a key catalyst to promote hope in the future and hope to manage personal challenges, which can help families build resiliency and unity......»»
Efficient bi-functional catalyst for methanol-assisted water splitting of hydrogen generation
Hydrogen energy, as a green and environmentally friendly energy carrier, is a critical switch in energy conversion to the green economy, and the green hydrogen generation via water splitting technique from renewable energy sources is regarded as the.....»»
Scientists explain unique formation of ancient algae that evolved photosynthesis and oxygenated the planet
Scientists have for the first time revealed how blue-green algae—visible as the slippery green slime in stagnant water, riverbeds, and seashores—weaves itself into large weblike structures......»»
Scientists reveal centromere repositioning in soybean genome
Researchers from China studying soybean genome evolution have focused on the phenomenon of centromere repositioning, which involves the formation of new centromeres at different chromosomal locations without altering the underlying DNA sequences. Thi.....»»