Archive for the ‘science’ category

Apr 11, 2024

Advanced Tech and Life Science on Station Today Promoting Health

Posted by in categories: 3D printing, bioprinting, biotech/medical, health, nanotechnology, science, space travel

Nanomaterials manufacturing, 3D bioprinting, and astronaut eye health were the main research topics aboard the International Space Station on Friday. The Expedition 71 crew members also continued servicing spacesuits and conducted an emergency drill.

The SpaceX Dragon cargo spacecraft recently delivered to the orbital outpost a biotechnology study to demonstrate the in-space production of nanomaterials that mimic DNA. NASA Flight Engineers Jeanette Epps and Mike Barratt worked on the second portion of that experiment on Thursday mixing then treating the research samples for analysis. Epps began her day mixing solutions in the Life Science Glovebox to create specialized nanomaterials. During the afternoon, Barratt applied sound and light treatments to the samples then stowed them aboard Dragon for analysis back on Earth. Results may lead to advanced therapies for space-caused and Earthbound health conditions.

The duo partnered back together at the end of the day for eye scans using standard medical imaging gear found in an optometrist’s on Earth. Barratt operated the hardware with guidance from doctors on the ground peering into Epp’s eyes and examining her retina and optic nerve for the B Complex eye health investigation.

Apr 6, 2024

Science has developed petunias that glow in the dark

Posted by in categories: genetics, law, science

Petunias that glow in the dark are a thing now. The genetically modified flowers actually generate their own light, and are now legal to sell.

Apr 6, 2024

Squid-like plant that lives mostly underground is new to science

Posted by in category: science

For the first time in nearly a century, a new genus of plant has been discovered in Japan, but it looks more like a squid or an alien than a plant.

By James Woodford

Apr 3, 2024

Astrophysicist Explains Science Behind Once-in-a-Lifetime Nova Outburst that will Light up the Sky this Year

Posted by in categories: physics, science, space

The total solar eclipse isn’t the only reason to keep your eyes to the sky this year. For the first time in 80 years, a star system 3,000 light years away will be visible to the naked eye thanks to a once-in-a-lifetime nova outburst.

NASA announced that the nova, which will create a “new” star in the night sky, will light up the night sky some time between now and September and be as bright as the North Star. One of only five recurring novae in our galaxy, it will be visible for a week before it fades back down.

Jonathan Blazek, an assistant professor of physics at Northeastern University, says this is an exciting moment for amateur astronomers and astrophysicists alike. It’s not technically a new star, just a star that is now bright enough for people to see more clearly, Blazek says, but it provides an opportunity to see and understand the cosmos in a new way.

Apr 3, 2024

The new science of death: ‘There’s something happening in the brain that makes no sense’

Posted by in categories: neuroscience, science

For several years, Jimo Borjigin, a professor of neurology at the University of Michigan, had been troubled by the question of what happens to us when we die.

New research into the dying brain suggests the line between life and death may be less distinct than previously thought by .

Mar 31, 2024

Advancing cancer surgery through data science

Posted by in categories: biotech/medical, science

When Jeff Siewerdsen, Ph.D., joined MD Anderson last year, he finally got the opportunity to work more closely with clinical teams to make advances that would benefit patients and clinicians in the operating room.

Mar 30, 2024

Which Flame Is the Hottest? Understanding the Science Behind Temperature, Fuel, and the Spectrum of Fire

Posted by in categories: energy, science

Flames exhibit a spectrum of colors, ranging from yellow and orange to red, blue, and violet. Discover which hue denotes the highest temperature.

Mar 27, 2024

Evari turns to rocket science to solve problems with heat pumps

Posted by in categories: energy, science

The startup emerged from stealth with a goal of extending the range of EVs while also eliminating fossil fuels from home heating.

Mar 23, 2024

Universities Have a Computer-Science Problem

Posted by in categories: computing, education, science

The case for teaching coders to speak French.

By Ian Bogost

Mar 21, 2024

The new science of optimism and longevity

Posted by in categories: biotech/medical, genetics, life extension, neuroscience, science

Results of DNA studies also seem to confirm the idea that optimism is an effective tool for slowing down cellular aging, of which telomere shortening is a biomarker. (Telomeres are the protective caps at the end of our chromosomes.) This research is still in progress, but the early results are informative. In 2012, Elizabeth Blackburn, who three years earlier shared a Nobel Prize for her work in discovering the enzyme that replenishes the telomere, and Elissa Epel at the University of California at San Francisco, in collaboration with other institutions, identified a correlation between pessimism and accelerated telomere shortening in a group of postmenopausal women. A pessimistic attitude, they found, may indeed be associated with shorter telomeres. Studies are moving toward larger sample sizes, but it already seems apparent that optimism and pessimism play a significant role in our health as well as in the rate of cellular senescence. More recently, in 2021, Harvard University scientists, in collaboration with Boston University and the Ospedale Maggiore in Milan, Italy, observed the telomeres of 490 elderly men in the Normative Health Study on U.S. veterans. Subjects with strongly pessimistic attitudes were associated with shorter telomeres — a further encouraging finding in the study of those mechanisms that make optimism and pessimism biologically relevant.

Optimism is thought to be genetically determined for only 25 percent of the population. For the rest, it’s the result of our social relationships or deliberate efforts to learn more positive thinking. In an interview with Jane Brody for the New York Times, Rozanski explained that “our way of thinking is habitual, unaware, so the first step is to learn to control ourselves when negative thoughts assail us and commit ourselves to change the way we look at things. We must recognize that our way of thinking is not necessarily the only way of looking at a situation. This thought alone can lower the toxic effect of negativity.” For Rozanski, optimism, like a muscle, can be trained to become stronger through positivity and gratitude, in order to replace an irrational negative thought with a positive and more reasonable one.

While the exact mechanisms remain under investigation, a growing body of research suggests that optimism plays a significant role in promoting both physical and mental well-being. Cultivating a positive outlook, then, can be a powerful tool for fostering resilience, managing stress, and potentially even enhancing longevity. By adopting practices that nurture optimism, we can empower ourselves to navigate life’s challenges with greater strength and live healthier, happier lives.

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