Home » oxygen » Page 2
Tag:

oxygen

Health

Gene Therapy May Lower Stroke Risk in Sickle Cell Patients

by Dr. Michael Lee – Health Editor
written by Dr. Michael Lee – Health Editor

gene Therapy Shows Promise in Reducing Stroke Risk for Sickle Cell Disease Patients

Memphis,TN – June 30,2025 – A groundbreaking new study from St. Jude Children’s Research Hospital suggests gene therapy could significantly reduce stroke risk in patients with sickle cell disease.The research, published today in the American Journal of Hematology, focuses on improving a key factor contributing to stroke: inadequate oxygen delivery to the brain.

Many individuals with sickle cell disease experience brain ischemia – a condition

0 comments
0 FacebookTwitterPinterestEmail
Technology

Geological study discovers that Earth’s magnetic field and oxygen levels have been linked for 540 million years | Science

by Rachel Kim – Technology Editor
written by Rachel Kim – Technology Editor

Earth’s Magnetic Field and Oxygen Levels Linked in Unexpected Discovery

Scientists have found a significant correlation between Earth’s magnetic field and atmospheric oxygen levels, suggesting a deeper connection between these phenomena. This groundbreaking research, spanning hundreds of millions of years, could offer valuable insights into the conditions that support life on other planets.

Parallel Evolution Unveiled

Research conducted by scientists from the Goddard Space Flight Center, linked the planet’s magnetic field to the levels of oxygen in the atmosphere. They discovered that both factors developed in tandem over the past 540 million years. This finding suggests a shared underlying geophysical or geochemical process remains unknown.

The study analyzed data showing significant increases in both the geomagnetic field’s strength and oxygen concentrations. A notable peak occurred between 330 and 220 million years ago. The scientists still can’t determine if one influences the other or if a third, unknown element is at play.

“This is the first discovery we have had to establish the link between the geomagnetic field and the oxygen level,”

—Weijia Kuang, Lead Author

According to the U.S. Geological Survey, atmospheric oxygen is currently at about 21% (USGS, 2024). The researchers used datasets that covered the last 540 million years. They assessed oxygen levels using fossilized coal. Magnetic field intensity was documented using magnetic footprints preserved in old rocks.

The Connection’s Importance

The study’s authors, Weijia Kuang and Ravi Kopparapu, assert that comprehending this relationship is vital. It may help identify the basic requirements for life on other planets. The research team noted the need for further study to determine if one factor directly affects the other, or if an unknown element is involved.

The Earth’s magnetic field functions as a shield against space weather. This shield protects essential molecules, including oxygen, by preventing solar particles from eroding the atmosphere. It also safeguards photosynthetic organisms, which are the primary oxygen producers, from extreme radiation like X-rays and ultraviolet radiation.

If atmospheric oxygen impacts the magnetic field, the process could be connected to the Earth’s internal dynamics. Plate tectonics could alter the intermediate layer’s chemical and thermal composition. This, in turn, could affect the activity in the liquid external nucleus, where the geomagnetic field is generated.

0 comments
0 FacebookTwitterPinterestEmail
Technology

Mars has an underground ‘ocean’, raising hopes that people will move there.

by Chief editor of world-today-news.com
written by Chief editor of world-today-news.com

New NASA study Mars is reported to have an underground water ocean. This raises the question of whether we can move to Mars or not. He came back to talk again

  • According to a NASA study, underground sources of water may exist 11.5-20 kilometers below the surface of Mars, hidden in cracks in the underground rocks. The amount of water available may be sufficient to “ocean” can
  • Scientists believe that there was water on the surface of Mars 3 billion years ago, but the solar wind destroyed the Martian atmosphere. Eventually she became a dry and cold star.
  • Currently, there are many organizations committed to developing projects to colonize Mars. Even now, people have never set foot on Mars.

According to NASA studies The results of this research were published in a meeting report at the US National Academy of Sciences (PNAS) indicates that underground water sources may exist below the surface.Mars It is believed to be 11.5-20 kilometers below the surface of Mars, hidden in cracks in underground rocks. The amount of water available may be sufficient to “ocean” can

The research results are based on seismic measurements made by the InSight spacecraft (View) NASA’s Mars Rover It will use seismometers to find structures inside Mars between 2018 and 2022.

Scientists believe that there was water on the surface of Mars 3 billion years ago At that time, Mars had rivers, lakes and oceans, but the surface of Mars lost water as the atmosphere thinned. And new research shows that water has already entered the Martian crust.

Alexander Gunn A radio astronomer from the Jodrell Bank Center for Astrophysics at the University of Manchester revealed that to the BBC Mars originally had a strong magnetic field like Earth.

The movement of molten iron in the center of the Earth creates an electric field that protects it from cosmic rays and the solar wind. This refers to particles with electricity flowing from the sun. But after the inner core of Mars cooled it turned off this magnetic field. causing the solar wind to destroy the atmosphere of Mars Eventually it became a dry and cold star.

Can humans live on Mars?

Important elements that allow people to live on Mars That is, there must be water and “Oxygen” now NASA can now make oxygen on planets Using a device called MOXIE that is installed on the probe’s robot.perseverance(Rover perseverance) able to convert carbon dioxide into oxygen to breathe for a total of 100 minutes.

But with this amount alone, it is still far from the fact that people will be able to live on Mars. Even if it is so But currently many organizations are developing projects to colonize Mars.

a space exploration company LocationX of”Elon Musk“Still determined to establish a colony on Mars. The company has created a plan for a city on Mars. Including domed habitats and space suits, which have been prepared for a long time. And now they ‘ building a spacecraft that can carry 200 people to Mars in six months.

While the space program of the United Arab Emirates The goal is to establish a human settlement on Mars by 2117, so that we can see people moving to Mars in the coming decades. But maybe not everyone will move to a new planet. Because the costs are so high

Another important question is: Should humans live on Mars?

Related content

Should humans live on Mars?

Some thinkers question whether it is appropriate or not. that humans will move to settle on Mars called “Another planet” After destroying the environment on Earth.

Ian Stoner, who teaches philosophy at St. Paul’s College in Minnesota, said that trying to colonize Mars could cause serious damage to Mars. Because of bringing microorganisms on Earth to live on Mars. It may be an attack on native life. to the point where they can’t compete And primitive life on Mars can become extinct. which we never knew before

“Although there is no life on Mars, But I consider it disrespectful to Mars. That is seen as a mere resource that is useful to people.” Stoner said.

A survey by the Pew Research Center in 2023 of 10,329 American adults on the main priorities of the NASA mission found that 60% of the respondents wanted to use NASA to track asteroids that could hit the Earth. said that important parts of the Earth’s climate system should be investigated, while only 11% saw Mars exploration as a priority.

Katharine Hayhoe, Director of the Climate Science Center at Texas Tech University criticizes the idea of ​​colonizing Mars on Earth. She said we should find a way to stop the change problem.climateon earth anymore

“If we don’t act to reduce and eliminate our carbon emissions, eventually, our planet will collapse before we even get to Mars.”
Heyhoe said.

Although we have received new information about how there is water and oxygen on the Red Planet, and we dreamed for a long time that we could go up there But in reality, people have never walked on Mars yet. And we don’t know how long people can live on the planet we intend to make our second home.

Source: Algeria, Place, Xinhua

0 comments
0 FacebookTwitterPinterestEmail
First woman to complete the world’s toughest race: “Due to a lack of oxygen, I could no longer see or hear anything”
Sport

First woman to complete the world’s toughest race: “Due to a lack of oxygen, I could no longer see or hear anything”

by Chief editor of world-today-news.com
written by Chief editor of world-today-news.com

Barkley Marathons

Jasmin Paris, who on Friday evening became the first woman ever to successfully complete the infamous Barkley Marathons, testified about her adventure on the BBC. “I did it for every woman who wants to take on a challenge and maybe doesn’t have the confidence to do it.”

Monday, March 25, 2024 at 1:06 PM

British Jasmin Paris wrote sports history when she became the first woman ever to complete the Barkley Marathons in the American state of Tennessee on Friday evening. She was only the 20th finisher of the race since it was expanded to a distance of 160 kilometers in 1989, and the first woman. “I wanted to push my limits and inspire others,” she tells BBC.

Paris said she ran the race not only for herself, but also for other women around the world. “Not just to inspire runners, but for any woman who wants to take on a challenge and may not have the confidence to do so,” said the Scottish woman. “The idea that I might have inspired them to believe in themselves… that’s huge. Especially for all the young girls – you know how hard it is to keep them playing sports.”

99 seconds

Her arms and legs may be covered in scratches, but the experience, according to Paris, was “mind-expanding” and has given her enough self-confidence for the rest of her life. The ultrarunner arrived just one minute and 39 seconds before the 60-hour time limit and collapsed exhausted after the finish. During the Barkley Marathons, she also lost her voice due to the heavy breathing.

“In the last kilometer I started to doubt whether I would make it. At that moment I really wanted to stop running,” the British woman admits, “but I realized that I would not reach the finish in time. Then I would have had to come back and do everything again, because I could never leave it like that (it was the third participation for Paris, ed.).”

“I only had a few minutes left to walk up the hill, so I finally decided to just sprint. At that moment I was so deprived of oxygen that I saw or heard nothing around me for the last hundred meters. There was a lot of noise around me, people cheering me on, but I was focused on the finish. Everything else was a blur,” Paris reflects.

Mount Everest twice

During the Barkley Marathons, participants must complete five identical loops of approximately 20 miles, alternating clockwise and counterclockwise. They are given a maximum of twelve hours for each loop, but the route is unmarked and there are no landmarks. Participants can only count on a compass and a drawn map.

In addition to the terrain – in total the runners have to cross twice the height of Mount Everest – it is the extreme fatigue due to chronic sleep deprivation that makes the race so difficult. Last year, Karel Sabbe was the first Belgian to successfully complete the Barkley Marathons.

0 comments
0 FacebookTwitterPinterestEmail
The Sun: A Ball of Nuclear Fusion Hotter Than Any Fire on Earth, Explained
Health

The Sun: A Ball of Nuclear Fusion Hotter Than Any Fire on Earth, Explained

by Chief editor of world-today-news.com
written by Chief editor of world-today-news.com

The Sun is a ball of nuclear fusion that is astronomically hotter than any fire on Earth. (Photo: NASA)

JAKARTA – Is it true that outer space is vacuum? If so, then how can the sun burn, while fire requires oxygen.

The sun, as observed by ancient astronomers such as Anaxagoras, has a fiery nature. This conclusion is confirmed by modern, high-resolution images courtesy of NASA, the sun shining and pulsating like a ball of fire.

Reporting from Mymodernmet, Saturday (3/2/2024), scientists explained that the Sun is actually a ball of nuclear fusion which is astronomically hotter than any fire on Earth, so the conditions for its existence are different.

Even though there is no air, space still has a little oxygen. The oxygen molecule is known as O2, because it consists of two oxygen atoms bonded together. This is molecular oxygen on Earth. There are rare traces of it in space, but because oxygen atoms adhere tightly to stardust, it prevents them from combining to form oxygen molecules.

Interestingly, breathable oxygen like on Earth was created as a result of the Big Bang. Nuclear fusion inside young stars produces oxygen as we know it.

Fire requires oxygen to burn, at least 16 percent of the atmosphere. But the lack of oxygen does not affect the Sun because the Sun does not actually burn, in the sense of burning on Earth.

In contrast, the Sun has continuous nuclear fusion reactions. Large amounts of hydrogen and helium at extreme temperatures and pressures react to produce light and heat. In a fusion reaction, two light nuclei combine to form one heavier nucleus.

This process releases energy because the total mass of the resulting single nucleus is less than the mass of the two original nuclei. The remaining mass becomes energy. This energy travels as radiation to Earth, interacting with atoms in Earth’s atmosphere to create heat. That’s it The sun is burning in oxygen-deficient regions of space.

(msf)

2024-02-03 06:42:41
#Sun #Burn #True #Outer #Space #Vacuum

0 comments
0 FacebookTwitterPinterestEmail
Discovery of Additional Organic Matter on Saturn’s Moon Enceladus Raises Interest in Potential for Life Under the Ice
Technology

Discovery of Additional Organic Matter on Saturn’s Moon Enceladus Raises Interest in Potential for Life Under the Ice

by Chief editor of world-today-news.com
written by Chief editor of world-today-news.com

U.S. research team “Discovers additional organic matter in addition to existing organic matter… Paying attention to whether life exists in the sea under the ice”

Additional methanol, ethane, and oxygen molecules have been identified in gases emitted through the sea ice surface of Saturn’s moon Enceladus, raising interest in the possibility of an environment in which life can exist in the ocean beneath the ice. .

On the 15th, a team of researchers from Caltech’s Jet Propulsion Laboratory (JPL) and Harvard University’s Jonah Peter reanalyzed the observation data from the Saturn probe Cassini in the scientific journal Nature Astronomy and transferred it to the plume of material emitted from Enceladus. It was further confirmed that unknown methanol, ethane, and oxygen molecules exist in .

NASA’s and the European Space Agency’s (ESA) Saturn probe Cassini discovered a huge plume of material ejecting through the ice in the southern hemisphere of Enceladus in 2005. Additionally, close-flight observations in 2011 and 2012 confirmed the presence of five types of substances in the material column: water, carbon dioxide, methane, ammonia, and hydrogen molecules.

In this study, the research team reanalyzed data collected in 2011 and 2012 by the Ion and Neutral Mass Spectrometer (INMS) on board Cassini and compared it with a large catalog of known mass spectra.

Using statistical analysis techniques, they analyzed billions of potential components that may be in the gas plume, and in addition to the five substances previously identified in the emission plume, such as water and methane, they also identified hydrogen cyanide (HCN), acetylene (C2H2), and propylene (C3H6). , ethane (C2H6), trace amounts of methanol (CH3OH), and oxygen molecules.

The research team said that the six substances identified this time are very important substances related to the possibility of an environment in which life can exist on Enceladus. These substances, along with mineralogy catalysts and redox differences due to surface radiation decomposition, have the potential to contribute to the survival of microorganisms. He said he could support it.

The research team added, however, that whether these compounds can support the survival of life on Enceladus may largely depend on how diluted these substances are in the ocean beneath the icy surface that covers Enceladus.

◆ 출처 : Nature Astronomy, Jonah Peter et al., ‘Detection of HCN and diverse redox chemistry in the plume of Enceladus’,

<저작권자(c) 연합뉴스>

0 comments
0 FacebookTwitterPinterestEmail
Newer Posts
Older Posts
@2025 - All Right Reserved.

Hosted by Byohosting – Most Recommended Web Hosting – for complains, abuse, advertising contact: contact@world-today-news.com