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.....»»
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.....»»
Newly proposed strategy in chemistry sheds light on better applications in energy devices
A research team has proposed a new strategy to use a kind of molecule called zwitterions-polyoxometalates to optimize and broaden practical applications in energy devices such as fuel cells and supercapacitors. Their findings are published in Polyoxo.....»»
Why do the cores of stars spin more slowly than expected?
Under certain conditions, the cores of stars contract. When this happens, they start to spin faster than the external layers of the star. However, the study of oscillations in stars, asteroseismology, has uncovered an astonishing phenomenon: The core.....»»
DNA sequencing method can detect where and how small molecule drugs interact with their targets
Many life-saving drugs directly interact with DNA to treat diseases such as cancer, but scientists have struggled to detect how and why they work—until now......»»
Researchers develop new, more accurate computational tool for long-read RNA sequencing
On the journey from gene to protein, a nascent RNA molecule can be cut and joined, or spliced, in different ways before being translated into a protein. This process, known as alternative splicing, allows a single gene to encode several different pro.....»»
In a first, chemists synthesize ocean-based molecule that could fight Parkinson"s
Organic chemists at UCLA have created the first synthetic version of a molecule recently discovered in a sea sponge that may have therapeutic benefits for Parkinson's disease and similar disorders. The molecule, known as lissodendoric acid A, appears.....»»
Sea level rise may threaten Indonesia"s status as an archipelagic country
The recent UN Intergovernmental Panel on Climate Change (IPCC) report found global sea levels have been rising at an accelerated rate. As an archipelagic state with more than 17,000 islands stretching over 80,000 kilometers of coastline, Indonesia sh.....»»
The effects of tightening a molecular knot
A study conducted by Anne-Sophie Duwez and Damien Sluysmans from the NANOCHEM group at the University of Liège (Belgium) has made it possible to decode the mechanical response of small-molecule synthetic overhand knots by single-molecule pulling exp.....»»
Novel synthesis process for sustainable production of small molecules
Researchers at Ruhr University Bochum, Germany, have discovered a new synthetic pathway with which they can produce a specific organic compound from the simple molecule carbon monoxide (CO), namely anionic ketenes. These were previously only known as.....»»
James Webb telescope reveals Milky Way–like galaxies in young universe
New images from NASA's James Webb Space Telescope (JWST) reveal for the first time galaxies with stellar bars—elongated features of stars stretching from the centers of galaxies into their outer disks—at a time when the universe was a mere 25% of.....»»
Microwave imaging of quasi-periodic pulsations at flare current sheet
Quasi-periodic pulsations (QPPs; also known as quasi-periodic oscillations, i.e., QPOs) are electromagnetic emission phenomena that vary quasi-periodically with time. They appear in celestial transient events with different temporal/spatial scales, s.....»»
Electrons on the run: On chirality, tunneling and light fields
Will an electron escaping a molecule through a quantum tunnel behave differently depending on the left- or right-handedness of the molecule?.....»»
Genoa is an example of how to rethink cultural heritage and urban sustainability
Urban planning has a long history, stretching back to Ancient Greece and even Mesopotamia. Many centuries later, Europe finally caught up with the idea when Genoa developed the Strade Nuove and the Palazzi dei Rolli—the "new streets" and "Rolli pal.....»»
Multidecadal oscillations not to be confused with reduced warming, says study
Over the last century, sea surface temperatures in the North Atlantic have oscillated over periods of a few decades. These oscillations have not been limited to the ocean. Corresponding variations have been observed in the Arctic sea-ice cover, in oc.....»»
Scientists turn single molecule clockwise or counterclockwise on demand
Controlling the rotation of this molecule could lead to new technologies for microelectronics, quantum computing and more......»»
"Probing" the quality of compounds at the heart of biological research
Details of a major, updated online resource to help biomedical researchers use the best small-molecule reagents for their experiments have been published......»»
Glaciers have existed on Earth for at least 60 million years—far longer than previously thought
Glaciers have been present somewhere on Earth for at least 60 million years, a period stretching back almost to the time of the dinosaurs. That's the key finding of our new research, which pushes the date when the planet was last glacier-free back by.....»»
New fluorescent sensor reveals a key protein involved in interactions between cells
Researchers led by Osaka University report the development of INCIDER, a fluorescent sensor system that enables high-contrast microscopic imaging of temporal changes in cellular interactions mediated by the N-cadherin molecule. This sensor system, wh.....»»
Marsquakes, recent volcanism suggest Mars still has a mantle plume
Elysium Planitia may be best explained by the same process that powers Yellowstone. Enlarge / One of the rifts in the Cerebrus Fossae area, potentially created by the stretching of the crust driven by a mantle plume. (credit: NAS.....»»
Measuring times in billionths of a billionth of a second
How fast do electrons inside a molecule move? Well, it is so fast that it takes them just a few attoseconds (a billionth of billionth of a second) to jump from one atom to another. Blink and you missed it—millions of billions of times. So measuring.....»»