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Showing posts from January 26, 2020

Information on LASIK refractive surgery. | How does laser eye surgery work

LASIK, or "laser-assisted in-situ keratomileusis," is the most common laser eye surgery performed to treat nearsightedness (myopia), farsightedness (hyperopia), and astigmatism.

Spanish ophthalmologist José Ignacio Barraquer MonerHe wanted to find a solution to the problem of blurry vision without the help of devices. Barrucker began by cutting off the cornea at the front and placing it in liquid nitrogen.



With a miniature machine he grinded the frozen cornea and gave it the shape it needed to give the patient a clear view. 

Then he defrosted the corneal disc and sewed it back on, Barraquer called this operation Keratomileusis, which is the Greek word for corneal reshaping, and although it is scary to imagine, his treatment method has yielded good results.

Like other types of refractive surgery, the LASIK procedure shapes the cornea to allow light entering the eye to be properly focused on the retina, resulting in clearer vision.

In most cases, laser eye surgery is painless and c…

The highest resolution photograph of the Sun ever taken | Video HD solar surface

A new telescope built explicitly to study the Sun, the National Science Foundation's (DKIST) Daniel K.
The NSF's Inouye Solar Telescope provides unprecedented close-ups of the sun’s surface, but ultimately it will measure the sun’s corona – no total solar eclipse required. 😎

More: https://t.co/UsOrXJHaY1#SolarVision2020pic.twitter.com/DO0vf9ZzKC — National Science Foundation (@NSF) January 29, 2020

Inouye 4-meter solar telescope, has sent its first images. They are impressive. In them we can look at the surface of the Sun as we have never seen before, revealing details of granules convection the size of Spain (or more), which resemble cells and which form the record of movements that transport heat from the interior of the Sun to its surface.




There is no doubt that this telescope leads to a new era of solar science and a leap forward in understanding the sun and its impact on our planet.

The surface of our Sun is an incredibly violent place and we can now observe it in great det…

China confirms 170 Victims: Coronavirus caused more infections than the SARS epidemic

China announcing that the number of deaths due to the coronavirus had risen to 170.
Chinese authorities reconfirmed that in 24 hours the number of fatalities had risen giving a total of 170 victims. This surpassed the number of people infected with SARS, the deadly epidemic that between 2002 and 2003 had 5327 people infected.

However, the number of fatalities from the coronavirus is still well below its predecessor: Wuhan Coronavirus reached 170, while SARS left 348 victims.



In addition to China, where the majority of the sick are reported, the coronavirus is affecting more than 15 countries, which have now been joined by the United Arab Emirates.

As a precaution against the virus, which is believed to have originated in a wildlife market in Wuhan, central China, a quarantined city that is home to more than 11 million people, on-site transportation was limited, schools were closed, businesses asked their workers to perform their duties at home, the permanent use of masks was recommended, …

Gigantic natural greenhouse gas source discovered at the bottom of the Red Sea

Incredible amounts of greenhouse gases rise from the bottom of the Red Sea. According to researchers, their concentration in the region was 40 times higher than expected. 

The gases are not only a problem for the climate, but also for the air quality. This is because they react with exhaust gases from shipping to form toxic nitrogen oxides.

The hydrocarbon gases ethane and propane escape in huge quantities from the seabed of the Red Sea and damage the environment to an extent equivalent to the emissions in the form of gas leaks from a group of large fossil fuel producers.

This was reported by researchers in an article published in the scientific journal Nature on Tuesday.

On their way into the atmosphere, the escaping gases mix with emissions from industrial shipping and are transformed into harmful environmental toxins, which are also very dangerous to human health.

The researchers had become aware of the natural source due to pollutant measurements in the region. The Middle East is gener…

Official: Wuhan Coronavirus is Declared a Global Health Emergency

The World Health Organization declared the Wuhan coronavirus a global health emergency.

Surprisingly, this did not happen earlier, given the global reach of the disease, which is now being reported by various international media organizations.

There are already 8,200 people infected worldwide and the fact that the WHO has put the issue in that state means that international agencies and policies can release monetary funds to contain the pandemic.

I am declaring a public health emergency of international concern over the global outbreak of #2019nCoV, not because of what is happening in #China, but because of what is happening in other countries.https://t.co/HNrxyGeoBA — Tedros Adhanom Ghebreyesus (@DrTedros) January 30, 2020
The news of the first infections began less than a month ago and in one week the topic has become the main topic of the press around the world.

The case is reminiscent of SARS in 2003, where the Chinese government hid the real magnitude of the issue until it was too late…

20 Meter Gundam ROBOT in Japan, will be the sensation at the Tokyo 2020 Olympics

The robotic humanoid will be able to move. It will weigh 25 tons, but will not have any functional weapons😁.

Gundam robot video

20 Meter robotic humanoid (Japan): A giant, fully functional robot, this may sound like science fiction, but it will be a reality in Tokyo, Japan. The candidate is Gundam, in honor of the successful anime of the 1980s.


technology

Boston Dynamics hands over their robot dog to MythBusters to train Latest science and technology news The four-legged robot weighs 55-66 pounds (25-30 kilograms) and can carry about 31 pounds (14 kilograms). The Boston Dynamics dog robot, Spot Mini, can walk, climb, run, jump, carry heavy loads. The robot is in the port of Yokohama and is part of the Gundam Global Challenge project, which announced that it will create a life-size statue of a Gundam that can move. It will be the largest mobile humanoid robot in history.
It's already three years in the making. It will be unveiled at the 2020 Tokyo Olympics. The robot will be the Gunda…

Secrets of the Red Planet: Mystery of polar ice and Mars' atmosphere solved by scientists

The new model developed by scientists is trying to explain the peculiar nature of water and ice deposits at the South Pole of Mars, which seem to contain as much CO2 as the entire atmosphere of the planet.


Researchers from the California Institute of Technology (Caltech), the University of Colorado and NASA's Jet Propulsion Laboratory (JPL) in Pasadena, California, have developed a new model that explores the relationship between the Martian atmosphere and its ice layers, reports Phys.org.





According to thr reports, the team tried to confirm the theory presented in 1966 by two Caltech scientists, who suggested that the thin carbon dioxide atmosphere on Mars, first discovered by the spacecraft Mariner IV, can be explained by the existence on the planet of long-term stable polar CO2 ics, which controls the planet's atmospheric pressure.

The new model investigates the existence of a layered deposit of ice water and CO2 ice at Mars' south pole, which seems to contain amount of CO2…

Scientists find meteorite that contains interstellar material older than the Sun

Researchers found a remarkable interstellar material older than the solar system.


The Allende meteoriteA meteorite that fell to Earth half a century ago leaves the scientific community breathless. It has been discovered that this meteor contains material created before the Sun was born, which has shaken up the strong hypotheses that until now have been held by those who research this type of physics.

It is called Allende and it crashed into our planet in 1969, specifically in a desert in Mexico during a rain of burning space fragments. There was a great surprise with the discovery of interstellar material, in its interior that was older than the solar system itself. 

This is a very similar case to the meteorite that fell in Australia in the same year.

As scientists at Washington University in St. Louis have discovered, the sample of matter created before the birth of the Sun found inside Allende, often referred to as "presolar grains," contradicts what we thought we knew about i…

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SpaceX wants to send three tourists to the ISS

The US space company SpaceX wants to send three tourists to the International Space Station ISS.



It is planned that the tourists will travel to the ISS in the second half of 2021 together with a commander in the "Crew Dragon" space capsule, as the Texas start-up Axiom - SpaceX's partner company in the project - announced on Thursday.Neither of the two companies gave any indication of how much the tourists would probably have to pay for the trip. 

The costs for the launch of the Falcon 9 rocket alone, which will transport the space capsule into space, amount to around 60 million dollars (53 million euros).

In addition, the construction of a new "Crew Dragon" capsule must be financed.

🔹 In this respect, the ticket for the flight should cost tens of millions of dollars.

In earlier years, a total of eight tourists had already travelled to the ISS in Russian Soyuz capsules. 

The first was US entrepreneur Dennis Tito in 2001, who paid 20 million dollars for a vacati…

A new species of insect was named after Lady Gaga for being eccentric. | Kaikaia gaga

Insect was named after Lady GagaBrendan Morris, PhD at the University of Illinois, observed the behavior of about a thousand treehoppers for his research project when he suddenly noticed one female who was different from the others.


Scientists decided to name the recently discovered insect in honor of Lady Gaga for their "eccentric sense of style," NME reports.

In the scientific publication Zootaxa, he and his co-author, the entomologist Christopher Dietrich, wrote about it "an additional cross m-cu (between the fourth and fifth longitudinal veins) in the front wing, as well as a frontal-clipella form".

Morris decided to call the insect "Kaikaia gaga" so that specialists could understand what kind of species we are talking about.

"If there ever is a Lady Gaga bug, it will definitely be a treehopper bug because of its crazy horns and eccentric sense of style. They don't look like anything you've seen before," he explained.

Now Morris hopes…

How the lungs of a person suffering from Coronavirus look | Photos

Chinese doctors have published an x-ray of the lungs of a patient with the coronavirus 2019-nCoV that has spread through China and other countries.

The images published by Chinese doctors are of a 33-year-old woman who entered the hospital after presenting symptoms such as fever and cough for five days.
CT Imaging of the 2019 Novel Coronavirus (2019-nCoV) Pneumonia.https://pubs.rsna.org/doi/10.1148/radiol.2020200236 …



At the time of the woman's admission, doctors noted that her body temperature had risen to 39°C and heard the sounds of her breathing were harsh in both lungs.









Doctors examine the patient for coronavirusAccording to the results of the studies published in the journal Radiology, the patient had a clear deficiency of white blood cells, as well as multiple peripheral opacities in ground-glass in both lungs.
The outbreak of coronavirus that has put the whole world on alert because of its spread in several countries emerged in the Chinese city of Wuhan at the end of December …

"Very high at the global level." WHO has changed the risk assessment for coronavirus COVID-19.

The Director-General of the World Health Organization, Tedros Adhanom Ghebreyesus, announced that the risk assessment of coronavirus at the global level has been raised to "very high". This was reported on Friday.

LIVE daily media briefing on #COVID19 with @DrTedros#coronavirushttps://t.co/Uuup642t9d — World Health Organization (WHO) (@WHO) February 28, 2020

We have raised our assessment of the risk of spread and impact of COVID-19 to a very high level at the global level, he said during a press conference that was broadcast on Twitter by the organization.



The full briefing on #COVID19 by @DrTedroshttps://t.co/TM5aCuNm9qpic.twitter.com/yzG0Y4hbTo — World Health Organization (WHO) (@WHO) February 28, 2020
Chinese authorities told WHO in late December 2019 about an outbreak of unknown pneumonia in the city of Wuhan in central Hubei province. 

🔹 Specialists found that the pathogen is a new type of coronavirus. 

WHO recognized the outbreak as an emergency of international importance an…

Scientists propose to fight viruses with fullerenes

Fight viruses with fullerenes
Scientists from Skoltech and the Institute of Problems of Chemical Physics of the Russian Academy of Sciences have created water-soluble fullerene compounds that have valuable biological properties. The results of the study are published in the journal Chemical Communications. Thanks to this biological properties they can be used to develop effective antiviral drugs, including to suppress the human immunodeficiency virus (HIV).

Fullerenes are molecular compounds composed of three-coordinated carbon atoms, which are closed convex polyhedra. Depending on the number of atoms in the molecule, fullerenes resemble a soccer ball (C 60 ) or a rugby ball (C 70 ) in shape.

Compounds based on fullerenes have a pronounced antiviral, antibacterial, antitumor and antioxidant activity, so scientists have long viewed them as a promising basis for the creation of new drugs. Unfortunately, fullerenes are absolutely insoluble in water, which prevents their use in medicine.

R…

Coronavirus - Satellite Images Show Abandoned Places Worldwide

Whether China, Europe or the Middle East - the new type of corona virus is spreading everywhere.

Large events are canceled, crowds are avoided. Satellites have captured images of partially abandoned locations.world infections increase with the coronavirus. In particularly badly affected countries, public life comes to a standstill. Satellite images from the US space technology company Maxar show the extent of the epidemic in a before-and-after comparison.


The Al Haram Mosque in Mecca, Saudi Arabia is the largest mosque in the world - there is usually a huge crowd here. Source: VIA REUTERS


Medications have positive results in research for the treatment of coronavirus; here are 4 possibilities

Medicine used against malaria for almost 100 years and others without approval in Brazil are among the most promising after tests.


Four drugs showed positive - but still preliminary - results in scientific research in the treatment of Covid-19, a disease caused by the new coronavirus. These drugs act at different stages of cell contamination. They are:

ChloroquineRemindLopinavir/RitonavirFavipiravirHowever, self-medication is not recommended, since research has not been fully completed and it is not yet known whether there are any side effects from use by patients infected with the coronavirus.
The study on Favipiravir was released on Wednesday (18) - it is sold commercially in Japan under the name Avigan. It was developed by Toyama Chemical, of the Fujifilm group, and has been used for over 5 years against Influenza. Its use is only authorized in Japan.
The medicine is being tested only in laboratories outside the country. When consulted, Anvisa informed that there is no request for re…

Corona Virus Update: Wuhan Virus, Coronavirus news | Covid-19

Coronavirus update: The number of deaths from the coronavirus outbreak in mainland China was 1,770 at the end of Sunday, an increase of 105 from the previous day, according to the country's National Health Commission.
At least 100 of the new deaths came from Hubei Province, the epicenter of the epidemic, the commission said Monday morning. There were 2,048 new confirmed infections nationwide, about 1,933 from Hubei alone, bringing the number of new infections to 70,548.




Coronavirus update (2/16/20, 10:41) Start.
Coronavirus: Update on the virus in Spain, China and the WHO.
France confirms the first death by the coronavirus outside Asia. The President of the People's Republic of China, Xi Jinping, gave the first orders on the outbreak of the coronavirus on January 7, 13 days before his first public comment on Covid-19, on January 20.  

Finally, today it was also revealed that China started fighting the coronavirus earlier than previously known. In China, one of the measures being ta…

What do dolphins and whales drink if there's only salt water around?

Have you ever wondered how dolphins and other marine mammals obtain fresh water when they have been in salty environments all their lives? 

They don't have a desalination unit like in the gills of marine fish, and their kidneys can't dissolve sedimentary minerals. What kind of trick did nature invent?They can't drink seawater: with dolphins and whales, nature played an evil joke. It would seem that they are surrounded by water, but the use of salt water, on the contrary, will lead to dehydration and death.
In the case of sea fish, part of the salt that comes with sea water into the body is desalinated in the gills, and the salty surpluses come out with urine.
The salty environment in which they live, constantly pulls moisture out of the fish through the skin. It's a natural process - osmosis.

Therefore, these sea creatures have to drink sea water all the time and the more salt they have in them, the more they have to drink.
Dolphins and whales can't do that. They have n…

A second case of a patient with HIV being cured is confirmed; he comes out of hiding.

So far he has been called a the "London patient", but the man decided to come out of the shadows and reveal his identity. A second case of full recovery from AIDS, but doctors warn of over optimism.
Scientists at the IrsiCaixa AIDS Research Institute have confirmed that the so-called London patient has been cured of HIV, the second in the world, because 29 months after undergoing a stem cell transplant and stopping taking antiretrovirals he is still without a trace of the virus.The study of the London patient, published this Tuesday in the magazine "The Lancet HIV", has coincided with the announcement of another patient, in this case from Düsseldorf (Germany), which, according to the scientists, could become the third case in history to be cured of HIV, after the London case and one in Berlin.

New online today—30 month follow-up of the London patient, providing further evidence that he is the second person to be cured of #HIV. The long-term follow-up provides insi…