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Jul 9, 2022

Molecular machines of the future | Hendrik Dietz | TEDxTUMSalon

Posted by in categories: biotech/medical, evolution, nanotechnology

Evolution has developed very efficient molecular machines, for example for producing energy through rotation. Hendrik Dietz would like to harness these concepts to build his own molecular motors. His group has successfully demonstrated that they can encode and synthesize complex shapes using DNA origami, and have recently discovered how to reduce the cost for mass use and production. With his research, Dietz gets closer to his goal of revolutionizing nanotechnology with the capabilities of molecular motors, just like industry was revolutionized by electric and diesel motors.

. Can you remember playing with legos? Now imagine doing that with molecules. Prof. Hendrik Dietz, professor for experimental biophysics at TUM, runs a lab which does just that. Inspired by the rich functionalities of natural macromolecular assemblies such as enzymes, molecular motors, and viruses, the Dietz lab investigates how to build increasingly complex molecular structures. The goal is to build molecular devices and machines that can execute user-defined tasks. DNA origami in particular enables building nanodevices that can already be employed for making new discoveries in biomolecular physics and protein science. This talk was given at a TEDx event using the TED conference format but independently organized by a local community.

Jul 9, 2022

Quantum advantage demonstrated using Gaussian boson sampling

Posted by in categories: biotech/medical, quantum physics

One in five U.S. adults (19 percent) who report having had COVID-19 say they have long COVID symptoms, according to a report from the U.S. Centers for Disease Control and Prevention National Center for Health Statistics.

Jul 9, 2022

One in 13 US adults report long COVID symptoms

Posted by in category: biotech/medical

One in five U.S. adults (19 percent) who report having had COVID-19 say they have long COVID symptoms, according to a report from the U.S. Centers for Disease Control and Prevention National Center for Health Statistics.

Beginning June 1, the Household Pulse Survey, administered in partnership between the U.S. Census Bureau and the National Center for Health Statistics, began asking questions to assess the prevalence of post-COVID-19 conditions. Data were collected from June 1 to June 13, 2022.

The newly collected data show that one in 13 U.S. adults overall (7.5 percent) have long COVID symptoms, defined as symptoms not present prior to COVID-19 infection and lasting three or more months after first contracting the virus. Long COVID is less likely among than younger adults, with nearly three times as many adults ages 50 to 59 years reporting long COVID than those aged 80 years or older. Long COVID is more likely among women than men (9.4 versus 5.5 percent), and it is highest among Hispanic adults (9 percent) versus non-Hispanic White (7.5 percent) or Black (6.8 percent) adults.

Jul 9, 2022

13 percent of U.S. adults report serious psychological distress during COVID-19

Posted by in categories: biotech/medical, employment, finance, health

Serious psychological distress among U.S. adults remained fairly steady between April and July 2020, according to a research letter published online Nov. 23 in the Journal of the American Medical Association.

Emma E. McGinty, Ph.D., from the Johns Hopkins Bloomberg School of Public Health in Baltimore, and colleagues conducted two waves of the Johns Hopkins COVID-19 Civic Life and Public Health Survey (April 7 to April 13, 2020, and July 7 to July 22, 2020). Changes in during the COVID-19 pandemic was evaluated among 1,337 U.S. adults.

The researchers found that 13 percent of respondents reported serious in July 2020 versus 14.2 percent in April 2020, with 72 percent of adults reporting serious distress in both waves. The prevalence of serious distress was highest among adults aged 18 to 29 years (25.4 percent in April versus 26.5 percent in July), those with income less than $35,000 (20.2 percent in April versus 21.2 percent in July), and Hispanic individuals (17.9 percent in April versus 19.2 percent in July) at both time points. Among those with serious distress, the most common stressors were concerns about contracting COVID-19 (65.9 percent) and pandemic effects on employment (65.1 percent) and finances (60.6 percent). Educational interruptions were a stressor among adults with serious distress attending college and/or with (69 percent).

Jul 9, 2022

Millennial mental health toll spikes during COVID

Posted by in categories: biotech/medical, neuroscience

There has been a spike in severe psychological distress in young Australian adults under 35, according to new analysis from The Australian National University (ANU).

The study—which tracked 3,155 Australians—is the first-of-its-kind to compare mental health data before and during the COVID-19 pandemic.

“Young Australians aged 18 to 24 and those aged 25 to 34 are significantly worse off in terms of mental health than those who are older,” Associate Professor Ben Edwards, from the ANU Centre for Social Research and Methods, said.

Jul 9, 2022

New study shows staggering effect of coronavirus pandemic on America’s mental health

Posted by in categories: biotech/medical, health, neuroscience

When the novel coronavirus roared into the U.S., mental health took a back seat to physical health. The number one priority was making sure hospitals wouldn’t be overwhelmed and that as many lives as possible could be saved.

Schools closed, remote work became the norm, restaurants shuttered and getting together with friends was no longer possible. The news cycle spun with story after story highlighting the ever-increasing number of cases and deaths, while unemployment soared to levels not seen since the Great Depression.

Any one of these shifts could be expected to cause an increase in issues. Put together, they created a a perfect storm for a crisis.

Jul 9, 2022

Coronavirus lockdown made many of us anxious. But for some people, returning to ‘normal’ might be scarier

Posted by in categories: biotech/medical, employment, neuroscience

Many Australians have welcomed the gradual easing of coronavirus restrictions. We can now catch up with friends and family in small numbers, and get out and about a little more than we’ve been able to for a couple of months.

All being well, restrictions will continue to be lifted in the weeks and months to come, allowing us slowly to return to some kind of “normal”.

This is good news for the economy and employment, and will hopefully help ease the high levels of distress and mental health problems our community has been experiencing during the pandemic.

Jul 9, 2022

Mindfulness meditation reduces pain by separating it from the self

Posted by in categories: biotech/medical, neuroscience

For centuries, people have been using mindfulness meditation to try to relieve their pain, but neuroscientists have only recently been able to test if and how this actually works. In the latest of these efforts, researchers at University of California San Diego School of Medicine measured the effects of mindfulness on pain perception and brain activity.

The study, published July 7, 2022 in Pain, showed that interrupted the communication between brain areas involved in sensation and those that produce the sense of self. In the proposed mechanism, still move from the body to the brain, but the individual does not feel as much ownership over those pain sensations, so their pain and suffering are reduced.

“One of the central tenets of mindfulness is the principle that you are not your experiences,” said senior author Fadel Zeidan, Ph.D., associate professor of anesthesiology at UC San Diego School of Medicine. “You train yourself to experience thoughts and sensations without attaching your ego or sense of self to them, and we’re now finally seeing how this plays out in the brain during the experience of acute pain.”

Jul 9, 2022

Elon Musk says he’s terminating Twitter deal, board to fight

Posted by in categories: Elon Musk, law

Elon Musk announced he will walk away from his tumultuous $44 billion offer to buy Twitter, leaving the deal on the verge of collapse. The Tesla CEO sent a letter to Twitter’s board Friday saying he is terminating the acquisition.

But Twitter isn’t accepting Musk’s declaration. The chair of Twitter’s board, Bret Taylor, tweeted in response that the board is “committed to closing the transaction on the price and terms agreed upon with Mr. Musk and plans to pursue legal action to enforce the merger agreement. We are confident we will prevail in the Delaware Court of Chancery.”

Twitter could have pushed for a $1 billion breakup fee that Musk agreed to pay under these circumstances. Instead, it looks ready to fight to complete the deal, which the company’s board has approved and CEO Parag Agrawal has insisted he wants to consummate.

Jul 9, 2022

A star is orbiting the Milky Way’s black hole at 18 million miles an hour

Posted by in categories: cosmology, evolution

The discovery will help us understand more about the evolution of our galaxy and learn about fast-moving central stars.