Rabi oscillations in a stretching molecule
Over eighty years ago, Rabi oscillations were proposed to describe the strong coupling and population transfer in a two-level quantum system exposed to an oscillatory driving field. As compared to atoms, molecules have an extra degree of vibration, w.....»»
Efficient fuel-molecule sieving using graphene
A research team led by the University of Tsukuba has successfully developed a new method that can prevent the crossover of large fuel molecules and suppress the degradation of electrodes in advanced fuel cell technology using methanol or formic acid......»»
Using harmless light to change azobenzene molecules with new supramolecular complex
Azobenzenes are incredibly versatile and have many potential uses, such as in making tiny machines and improving technology as well as making light controllable drugs. This molecule can switch between two different forms by light. However, the two fo.....»»
A mysterious blue molecule will help make better use of light energy
Researchers at IOCB Prague are the first to describe the causes of the behavior of one of the fundamental aromatic molecules, which fascinates the scientific world not only with its blue color but also with other unusual properties—azulene. Their c.....»»
"Crappier-than-crap" molecule exposed in overhaul of carbon-nitrogen-hydrogen chemistry
Russian researchers have explained why scientists studying crude oil and celestial chemistry—as well as certain down-to-earth matters—frequently come across some molecules incorporating carbon, nitrogen, and hydrogen but not other combinations of.....»»
Scientists probe the source of key hydrocarbons on Earth—and in space
Polycyclic aromatic hydrocarbons (PAHs) are a type of organic molecule that carry fused rings made of the chemical benzene. Scientists believe that PAHs are responsible for chemical processes that eventually lead to soot and other carbonaceous nanopa.....»»
Stretching the truth: New research reveals negative effects of exaggerative political statements
Justifying policies through unsubstantiated or slightly invalid arguments can have a significantly negative effect on the public opinion of politicians, according to new research from City, University of London......»»
Researchers present novel principle for nitric oxide-mediated signaling in blood vessels
Although a simple molecule, nitric oxide is an important signal substance that helps to reduce blood pressure by relaxing the blood vessels. But how it goes about doing this has long been unclear. Researchers at Karolinska Institutet in Sweden now pr.....»»
The physics of saltwater taffy
Air bubbles, oil droplets are the primary factors, plus emulsifiers for extra chewiness Enlarge / Saltwater taffy is made by stretching and pulling the sticky candy base to create air bubbles for a fluffy and chewy confection. (c.....»»
AI "nose" predicts smells from molecular structures
In a major breakthrough, scientists have built a tool to predict the odor profile of a molecule, just based on its structure. It can identify molecules that look different but smell the same, as well as molecules that look very similar but smell tota.....»»
A particular way of creating quantum entanglement may improve accuracy of advanced quantum sensors
Metrological institutions around the world administer our time using atomic clocks based on the natural oscillations of atoms. These clocks, pivotal for applications like satellite navigation or data transfer, have recently been improved by using eve.....»»
Quantum computer unveils atomic dynamics of light-sensitive molecules
Researchers at Duke University have implemented a quantum-based method to observe a quantum effect in the way light-absorbing molecules interact with incoming photons. Known as a conical intersection, the effect puts limitations on the paths molecule.....»»
A new route for universal polarization transformations of spatially varying polarization fields
Polarization describes the orientation of oscillations in a light wave, and it plays an essential role in various optical applications—from enhancing visibility in sunglasses and camera lenses to facilitating advanced optical communication and imag.....»»
"Thermometer" molecule confirmed on exoplanet WASP-31b
Chromium hydride (CrH), a molecule that's relatively rare and particularly sensitive to temperature, is useful as a "thermometer for stars," according to astronomer Laura Flagg, because it's abundant only in a narrow range between 1,200–2,000 degre.....»»
Study: Wnt signaling pathway inhibitor promotes mesenchymal stem cell differentiation into cardiac progenitor cells
Cardiovascular diseases, particularly myocardial infarction (MI), are the leading cause of mortality and morbidity around the globe. Because cardiac tissue possesses very limited regeneration potential, use of a potent small molecule, inhibitor Wnt p.....»»
Observation of autonomous crack healing in metal confirms 2013 prediction
A microscopic crack grew in a very small piece of platinum when placed under repetitive stretching. The experiment, designed to study fatigue crack growth, continued as predicted for a while before something unexpected happened. The crack stopped gro.....»»
Greek fires rage unabated for a week
Greek firefighters struggled on Friday to contain scores of blazes stretching nationwide—the largest fires in the European Union this year......»»
Molecule identified that could be key for a new wave of drugs to target obesity and bone diseases
Scientists have identified a molecule that plays a key role in how cells detect when they are being pushed or pulled which could lead to the development of future drugs for obesity, osteoporosis, and inflammatory diseases......»»
The link between the impact of radiation on DNA and the time in which the damaged molecule breaks irreversibly revealed
We are exposed to ionizing radiation more often than we think: when we bathe in the sun, which emits UV rays, or when we get X-rayed. Even when we are traveling on an intercontinental flight, which reaches 10,000 meters above sea level. This type of.....»»
Small-molecule autocatalysis may have paved the way for the emergence of evolution by natural selection
The discipline of systems chemistry deals with the analysis and synthesis of various autocatalytic systems and is therefore closely related to the study of the origin of life, since it investigates systems that can be considered as a transition betwe.....»»
Researchers discover antifungal molecule
Fungal infections are killing thousands of Americans each year, some with a morbidity rate of nearly 80%. To make matters worse, only a handful of antifungal treatments are available, and even those are becoming less effective as fungi become more re.....»»