Can the Heart Heal itself? New study says it can

A doctor examines a patient wearing a pink robe sitting on the edge of a bed
Tissue from patients with artificial hearts, or left ventricular assist devices, regenerated muscle cells at more than six times the rate of healthy hearts, according to a paper published in the journal Circulation.
Photo by Halfpoint Images via Getty Images

An international research team found evidence that heart muscle can regenerate after heart failure in some people with artificial hearts. A research team co-led by a physician-scientist at the University of Arizona College of Medicine — Tucson’s Sarver Heart Center found that a subset of artificial heart patients can regenerate heart muscle, which may open the door to new ways to treat and perhaps someday cure heart failure. The results were published in the journal Circulation.

According to the Centers for Disease Control and Pr...

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Researchers take ‘Significant Leap Forward’ with Quantum Simulation of Molecular Electron Transfer

A crystal with 171Yb+ -172Yb+ ions is trapped in an ultra-high vacuum system. The researchers use different lasers to perform the simulation: one pair of lasers (indicated by the purple arrows) is used to simulate the coherent part of the evolution, while another laser (the blue arrow) is used to simulate and control the environment. (Image courtesy of Guido Pagano/Rice University.)

Discovery could advance renewable energy technologies, molecular electronics and quantum computing. Researchers at Rice University have made a meaningful advance in the simulation of molecular electron transfer — a fundamental process underpinning countless physical, chemical and biological processes...

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Dark Energy ‘Doesn’t Exist’ so Can’t be Pushing ‘Lumpy’ Universe Apart, Physicists Say

One of the biggest mysteries in science—dark energy—doesn’t actually exist, according to researchers looking to solve the riddle of how the universe is expanding.

Their analysis has been published in the journal Monthly Notices of the Royal Astronomical Society Letters.

For the past 100 years, physicists have generally assumed that the cosmos is growing equally in all directions. They employed the concept of dark energy as a placeholder to explain unknown physics they couldn’t understand, but the contentious theory has always had its problems.

Now a team of physicists and astronomers at the university of Canterbury in Christchurch, New Zealand are challenging the status quo, using improved analysis of supernovae light curves to show that the universe is expanding in a mor...

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Introducing Perceptein, a Protein-based Artificial Neural Network in Living Cells

Here, each neuron is represented as spacecrafts, with their pilots in the cockpits depicted in the shape of protein 3D structures. These spacecrafts collectively process and transmit information to the final red neuron to make decisions on space navigation. The wires that connect the neurons, with the green substance inside, indicate the flow of biological information. Credit: Ehmad Chehre

Westlake University in China and the California Institute of Technology have designed a protein-based system inside living cells that can process multiple signals and make decisions based on them.

The researchers have also introduced a unique term, “perceptein,” as a combination of protein and perceptron...

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