Frozen mammoth skin retained its chromosome structure
Features as small as 50 nanometers preserved in a 50,000-year-old sample. Enlarge (credit: LEONELLO CALVETTI/SCIENCE PHOTO LIBRARY) One of the challenges of working with ancient DNA samples is that damage accumulates ove.....»»
Experiment reveals 3D structural image of atmospheric boundary layer during haze pollution in the North China Plain
The results of the experiment "Comprehensive Observation on the Atmospheric boundary layer Three-dimensional Structure" (COATS) were recently published online in Science China Earth Sciences. This study enriches the understanding of the physical mech.....»»
Investigating dark matter interactions using optical atomic clocks
Can dark matter interact with photons and influence atomic structure? A case for optical atomic clocks: Two different types of such clocks were compared at the Physikalisch-Technische Bundesanstalt (PTB) within the scope of the Collaborative Research.....»»
Harnessing the power of healthy cells to suppress skin cancer formation
Our healthy skin is a mosaic of both normal and mutation-bearing cells. As we age, a growing number of cells accumulate more mutations including those that can cause cancer. Eventually these mutant cells fueled by environmental insults, such as high.....»»
Physicists discover a new switch for superconductivity
Under certain conditions—usually exceedingly cold ones—some materials shift their structure to unlock new, superconducting behavior. This structural shift is known as a "nematic transition," and physicists suspect that it offers a new way to driv.....»»
Researchers reveal new molecular mechanism for stimulating hair growth
The process by which aged (senescent) pigment-making cells in the skin cause significant growth of hair inside skin moles, called nevi, has been identified by a research team led by the University of California, Irvine. The discovery may offer a road.....»»
Snake genome reveals burrowing past and re-adaptation to surface life
Chromosome-level assembly of 14 snakes in a study led by the Chinese Academy of Sciences, China, has created a high-resolution genomic reference for the study of snake evolution. In a paper, "Large-scale snake genome analyses provide insights into ve.....»»
Why Dads and Their Babies Need to Go Skin-to-Skin
Fathers and nonbirthing parents benefit from skin-to-skin contact with their newborns.....»»
Cuttlefish brain atlas first of its kind
Anything with three hearts, blue blood and skin that can change colors like a display in Times Square is likely to turn heads. Meet Sepia bandensis, known more descriptively as the camouflaging dwarf cuttlefish......»»
Google Lens will now be able to help identify potential skin conditions
Ever wonder what that patch on your skin could be? You could always visit a doctor, but if you have your phone on you, you can now use Google Lens to help diagnose any potential issues. Sometimes we might get weird rashes appearing on our.....»»
Ultra low-cost smartphone attachment measures blood pressure at home
Clever use of physics uses pressure on the skin and optics to track blood flow. Enlarge / The BPClip in action. (credit: Yinan Xuan et al.) Given that 47 percent of adults in the US alone have hypertension, keeping on to.....»»
Mapping the curvature where electrons reside in Kagome materials
Kagome metals are a class of quantum materials with interesting properties that are characterized by a unique lattice structure resembling Japanese woven bamboo patterns of the same name (i.e., Kagome). Over the past decade, physicists have been usin.....»»
Astronomers discover new link between dark matter and clumpiness of the universe
In a study published today in the Journal of Cosmology and Astroparticle Physics, researchers at the University of Toronto reveal a theoretical breakthrough that may explain both the nature of invisible dark matter and the large-scale structure of th.....»»
The life below our feet: Team discovers microbes thriving in groundwater and producing oxygen in the dark
Nearly a third of Earth's freshwater resources lie in groundwater—much more than in all lakes, rivers and the atmosphere combined, and exceeded only by the frozen water in polar ice caps. Accordingly, about half of humankind depends on groundwater.....»»
Sharpening Occam"s Razor: A new perspective on structure and complexity
In science, the explanation with the fewest assumptions is most likely to be true. Called "Occam's Razor," this principle has guided theory and experiment for centuries. But how do you compare between abstract concepts?.....»»
New way of identifying proteins supports drug development
All living cells contains proteins with different functions, depending on the type of cell. Researchers at the University of Gothenburg have discovered a way to identify proteins even without looking at their structure. Their method is faster, easier.....»»
Unlocking early Earth chemistry: Salt-induced changes in polyester microdroplet structure
Billions of years ago, Earth was an extremely hostile planet with active volcanoes, a harsh atmosphere, and no life. This prebiotic Earth, however, was filled with a wide array of abiotic organic molecules derived from its early environment, which un.....»»
Billion-year-old grease hints at long history of complex cells
Our ancestors once thrived on cholesterols that are now just reaction intermediates. Enlarge / All steroids past and present share the complex ringed structure but differ in terms of the atoms attached to those rings. (credit: KA.....»»
Call of Duty removes “NickMercs” skin following FaZe Clan star’s LGBTQ tweet
Move highlights reputational risk of in-game promos linked to real-world players. Enlarge / The Spartan-themed "NickMercs" skin that was recently removed from Call of Duty. (credit: Activision) Call of Duty has removed a.....»»
Cryo-EM study shows zinc transporter has built-in self-regulating sensor
Scientists at the U.S. Department of Energy's (DOE) Brookhaven National Laboratory have determined the atomic-level structure of a zinc-transporter protein, a molecular machine that regulates levels of this crucial trace metal micronutrient inside ce.....»»
Pulling its weight: Team identifies protein key to chromosome movement during cell division
During cell division, chromosomes, i.e., molecules containing our genetic material, must be properly replicated and segregated so that each daughter cell receives a complete and accurate set. Now, in an article published in Molecular Cell, a team led.....»»