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.....»»
How trees influence cloud formation
As part of the international CLOUD project at the nuclear research center CERN, researchers at PSI have identified so-called sesquiterpenes—gaseous hydrocarbons that are released by plants—as being a major factor in cloud formation. This finding.....»»
Using lignin and a catalyst to create an alternative to bisphenol A (BPA)
A team of microbiologists and chemists at the Center for Sustainable Catalysis and Engineering, working with colleagues from Vrije Universiteit Brussel, the Flemish Institute for Technological Research and Rheology and Technology (SMaRT), KU Leuven,.....»»
New catalyst decreases the energy required to split hydrogen gas from water
Hydrogen gas is a clean, renewable alternative to fossil fuels, but current industrial production methods used to produce hydrogen release carbon into the atmosphere and pollute the environment......»»
Apple Arcade adds four games with 40 set for September updates
Apple Arcade is getting a boost in September, with a hefty amount of updates to games on the service and the addition of four new titles, including the James Bond game Cypher 007.'The September wave of updates, occurring in the same month as Apple's.....»»
BMW’s Neue Klasse points to a radical reinvention for future sedans
Innovations making it to production include a full-screen heads-up display and e-ink. Enlarge / The BMW Neue Klasse won't look exactly like this, but details like e-ink will appear in production. (credit: BMW) BMW provid.....»»
Clay formation prolonged global warming event 40 million years ago, according to new biogeochemical model
Global warming is not solely a modern-day occurrence but has been a prominent feature of Earth's geological history for millennia. One such event occurred approximately 40 million years ago, lasting ~400,000 years, known as the Middle Eocene Climatic.....»»
How does "MAD" accretion form around a black hole?
An international scientific team has revealed for the first time the magnetic field transport processes in the accretion flow of a black hole and the formation of a "MAD"—a magnetically arrested disk—in the vicinity of a black hole......»»
Non-gas giant has 73 times Earth’s mass, bewildering its discoverers
Neptune-sized planet has a density similar to pure silver. Enlarge (credit: NASA/JPL-Caltech) Scientists have been working on models of planet formation since before we knew exoplanets existed. Originally guided by the p.....»»
Semiconductor photocatalyst helps to realize borylation reaction
A research group led by Prof. Dai Wen from the Dalian Institute of Chemical Physics (DICP) of the Chinese Academy of Sciences (CAS) has realized borylation reactions involving N-heterocyclic carbene boranes (NHC-BH3) with a simple and efficient heter.....»»
Researchers demonstrate direct formation of sulfuric acid in the atmosphere without SO2
In the atmosphere, gaseous sulfuric acid can form particles that influence the physical properties of clouds. Thus, the formation of sulfuric acid in the gas phase directly affects the radiative forcing and Earth's climate......»»
Scientists prepare ISS experiment to study how droplets form in space
Dropcoal, short for drop coalescence, is a research project that studies how droplets form in space and on Earth. The results will grant insights into raindrop and cloud formation, fuel combustion and interactions between materials, all with broad im.....»»
Researchers produce polymers from ballbot-type carbenes for the first time
N-heterocyclic carbenes (NHCs) are small, reactive ring molecules that bond well with metallic surfaces, and which over the past few years have attracted a great deal of interest in the field of the stable chemical modification of metallic surfaces......»»
Spintronics: X-ray microscopy unravels the nature of domain walls
A new study at BESSY II analyzes the formation of skyrmions in ferrimagnetic thin films of dysprosium and cobalt in real time and with high spatial resolution. This is an important step towards characterizing suitable materials with skyrmions more p.....»»
Constitutive aryl hydrocarbon receptor facilitates regenerative potential of mouse bone marrow mesenchymal stromal cells
Bone marrow mesenchymal stromal cells (BMSCs) are the commonly used seed cells in tissue engineering. Aryl hydrocarbon receptor (AhR) is a transcription factor involved in various cellular processes. However, the function of constitutive AhR in BMSCs.....»»
Proba-3 satellite: Seeing in the dark
One of the precision formation flying Proba-3 satellites as seen from the other during ground testing. The pair will fly in orbit relative to one another down to millimeter scale precision, but in order to do this must keep continuous track of each o.....»»
When proteins get stuck at the solid phase: Unlocking the secrets to brain diseases
Many diseases affecting the brain and nervous system are linked to the formation of protein aggregates, or solid condensates, in cells from their liquid form condensate, but little is known about this process......»»
Study finds evidence of the formation and structural evolution of prehistoric agricultural economy in Central China
A research team led by Prof. Yang Yuzhang from the University of Science and Technology of China (USTC) of the Chinese Academy of Sciences (CAS) investigated the human subsistence strategy evolution of agricultural structure during the Yangshao cultu.....»»
Research team enhances hydrogen evolution catalyst through stepwise deposition
In order to enhance the accessibility of hydrogen-powered vehicles and establish hydrogen as a viable energy source, it's imperative to reduce the cost of hydrogen production, thereby achieving economic feasibility. To achieve this goal, maximizing t.....»»
Former North Carolina Ford dealership employee accused of embezzlement
The former employee posted bond and is scheduled back in court next month, according to authorities......»»
How microhabitat affects bacterial communities in a semi-arid ecosystem
Known as the living skin of dryland ecosystems, biocrust contains diverse soil microorganisms that are essential to biocrust formation and the maintenance of multiple ecological functions......»»