Monday, February 19, 2018

Science X Newsletter Week 07

Dear Reader ,

Here is your customized Science X Newsletter for week 07:

Researchers discover brain cells change following close contact with a stressed individual

Health-care workers treating soldiers with post-traumatic stress disorder (PTSD) report that some soldiers' partners and family members display symptoms of PTSD despite never serving in the military. A research study by scientists at the University of Calgary may help explain how that could happen.

Running helps the brain counteract negative effect of stress, study finds

Most people agree that getting a little exercise helps when dealing with stress. A new BYU study discovers exercise—particularly running—while under stress also helps protect your memory.

Researchers successfully reverse Alzheimer's disease in mouse model

A team of researchers from the Cleveland Clinic Lerner Research Institute have found that gradually depleting an enzyme called BACE1 completely reverses the formation of amyloid plaques in the brains of mice with Alzheimer's disease, thereby improving the animals' cognitive function. The study, which will be published February 14 in the Journal of Experimental Medicine, raises hopes that drugs targeting this enzyme will be able to successfully treat Alzheimer's disease in humans.

Beewolves have been successfully using the same antibiotics for 68 million years

The discovery of penicillin about 90 years ago and the widespread introduction of antibiotics to combat infectious diseases have revolutionized human medicine. However, in recent decades, the increase in multidrug-resistant pathogens has confronted modern medicine with massive problems. Insects have their own antibiotics, which provide natural protection against germs. A team of scientists from the Johannes Gutenberg University in Mainz and the Max Planck Institute for Chemical Ecology in Jena have now found that beewolves, unlike humans, do not face the problem of antibiotic resistant pathogens. These insects team up with symbiotic bacteria which produce an antibiotic cocktail of up to 45 different substances within a single species to protect their offspring against mold fungi. The researchers not only discovered that the number of antibiotic substances is much higher than previously thought, they also proved that the cocktail has remained surprisingly stable since the symbiosis emerged, about 68 million years ago.

Moore's law has ended. What comes next?

The speed of our technology doubles every year, right? Not anymore.

'Oumuamua had a violent past and has been tumbling around for billions of years

The first discovered interstellar visitor to our solar system has had a violent past, which is causing it to tumble around chaotically, a Queen's University Belfast scientist has discovered.

Humans will actually react pretty well to news of alien life

As humans reach out technologically to see if there are other life forms in the universe, one important question needs to be answered: When we make contact, how are we going to handle it? Will we feel threatened and react in horror? Will we embrace it? Will we even understand it? Or, will we shrug it off as another thing we have to deal with in our increasingly fast-paced world?

New form of light: Newly observed optical state could enable quantum computing with photons

Try a quick experiment: Take two flashlights into a dark room and shine them so that their light beams cross. Notice anything peculiar? The rather anticlimactic answer is, probably not. That's because the individual photons that make up light do not interact. Instead, they simply pass each other by, like indifferent spirits in the night.

Physicists extend stochastic thermodynamics deeper into quantum territory

Physicists have extended one of the most prominent fluctuation theorems of classical stochastic thermodynamics, the Jarzynski equality, to quantum field theory. As quantum field theory is considered to be the most fundamental theory in physics, the results allow the knowledge of stochastic thermodynamics to be applied, for the first time, across the full range of energy and length scales.

Scientists directly observe electron dynamics of the Northern Lights

The shower of electrons bouncing across Earth's magnetosphere, commonly known as the Northern Lights, has been directly observed for the first time by an international team of scientists. While the cause of these colorful auroras has long been hypothesized, researchers had never directly observed the underlying mechanism until now. The results have been published in Nature.

Cancer-fighting nanorobots programmed to seek and destroy tumors

In a major advancement in nanomedicine, Arizona State University (ASU) scientists, in collaboration with researchers from the National Center for Nanoscience and Technology (NCNST), of the Chinese Academy of Sciences, have successfully programmed nanorobots to shrink tumors by cutting off their blood supply.

Study suggests possible link between highly processed foods and cancer

A study published by The BMJ today reports a possible association between intake of highly processed ("ultra-processed") food in the diet and cancer.

Russian cargo ship docks at International Space Station

An unmanned Russian cargo ship has docked successfully at the International Space Station, delivering a fresh batch of supplies for the crew.

Researchers discover brain pathway that dissociates opioid addiction from analgesia

A newly identified protein can be manipulated to make opioid painkillers effective at lower doses while also muting the reward mechanism that leads to addiction, Mount Sinai researchers have found.

Poor fitness linked to weaker brain fiber, higher dementia risk

Scientists have more evidence that exercise improves brain health and could be a lifesaving ingredient that prevents Alzheimer's disease.

Japanese researchers develop ultrathin, highly elastic skin display

A new ultrathin elastic display that fits snugly on the skin can show the moving waveform of an electrocardiogram recorded by a breathable, on-skin electrode sensor. Combined with a wireless communication module, this integrated biomedical sensor system, called "skin electronics," can transmit biometric data to the cloud.

Tesla shot into space will likely collide with Earth or Venus—in millions of years: researchers

The Tesla Roadster that was recently shot into space as part of SpaceX's rocket test flight will likely collide with Earth or Venus eventually, according to new University of Toronto research.

Cold open water plunge provides instant pain relief

A short, sharp, cold water swim may offer an alternative to strong painkillers and physiotherapy to relieve severe persistent pain after surgery, suggest doctors in the journal BMJ Case Reports.

Supermassive black holes are outgrowing their galaxies

The growth of the biggest black holes in the Universe is outrunning the rate of formation of stars in the galaxies they inhabit, according to two new studies using data from NASA's Chandra X-ray Observatory and other telescopes and described in our latest press release.

Research team detects an acceleration in the 25-year satellite sea level record

Global sea level rise is not cruising along at a steady 3 mm per year, it's accelerating a little every year, like a driver merging onto a highway, according to a powerful new assessment led by CIRES Fellow Steve Nerem. He and his colleagues harnessed 25 years of satellite data to calculate that the rate is increasing by about 0.08 mm/year every year—which could mean an annual rate of sea level rise of 10 mm/year, or even more, by 2100.


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