The world is quite wide and we can go to many places that no one has visited yet. Every time a person reaches a new place, it’s a milestone. We don’t limit ourselves there and we can still explore some parts of our universe. Astronauts make history by exploring space, seeing our planet from above and even stepping on the moon . Kathryn Sullivan, 68, is a former astronaut who made history. In 1984 she became the first American woman to go into space. Not satisfied with this historic achievement, Sullivan didn’t stop there.
On June 7th, 36 years after the great feat of her life, Kathryn became the first woman to reach the Depression Challenger. This is the deepest place in the ocean and taking such a trip is extremely delicate. His name returned to the front pages of several newspapers and major websites around the world. Given the great feat of the astronaut, we decided to bring you, dear reader, more details. Check with us then what this woman did and how incredible was her trip to the deepest place known to man. Take the opportunity to share with your friends.
Astronaut who reached the deepest point of the ocean
The place where the astronaut dived is 11 kilometers deep and is located in the Mariana Trench, near the Mariana Islands, in the Pacific Ocean. According to EYOS Expeditions, the company responsible for coordinating the mission, Sullivan is the eighth person to go there. Explorer Victor Vescovo, who financed the expedition, accompanied the astronaut in the process. They left aboard the Limiting Factor. This is a submersible vehicle capable of capturing images of the seabed, thus aiding investigations into the ocean.
The round trip took approximately eight hours. Travelers spent about an hour and a half at their destination. Sullivan told on his Twitter that inside the submarine it was -5Cº cold. In addition, the pressure was 1.1 ton. “As a hybrid oceanographer and astronaut, this was an extraordinary day, once in a lifetime. See the “lunar” passage of the Depression Challenger and then share with my ISS colleagues the look of that mission.” Those were Sullivan’s words.
Speaking a little more about Sullivan, in 1978 she joined NASA. The astronaut was part of the first group of US astronauts to include women. She stayed with the agency for 15 years. During this period, Kathryn participated in three space missions. She was also one of those responsible for installing the Hubble telescope in 1990. With the missions, she accumulated a total of 532 hours in space, quite a milestone.…
According to the international media, we are ready to take advantage of yet another advent of science: the dreamed-of vaccine against dementia caused by Alzheimer’s, which, as it is in the final stages of testing, should soon be tested in humans.
The immunizing agent, according to the portal Reasons to Believe, was developed in partnership by researchers from the University of California, in the United States, the University of Flinders, in Australia, and the Institute of Molecular Medicine, also in the United States.
So far, the vaccine has shown promising results in tests that have been carried out with mice. Because of the latest analysis , researchers believe the product can be used in tests with human patients.
As experts explain, both dementia and Alzheimer’s are diseases that cause cognitive clinicians. In short, these declines arise due to the accumulation of certain proteins in the brain, which, at a certain point, start to cause some neurological damage.
The good news is that the vaccine promises to stop the accumulation of these proteins. With this, the immunizing agent ends up also helping to stop the drastic neurodegeneration that occurs in the area. The latest analysis by researchers involved in the production of the vaccine showed that brain problems with the same characteristics were eliminated in mice and the deficiency, at a certain point, regenerated itself.
In an interview with the BBC, Nikolai Petrovsky, an endocrinologist and one of those responsible for the production of the immunizing agent, validated the fact that “the tests yielded excellent and encouraging results”. Also according to the professional, the research team should, in the coming months, provide the necessary demand to start the tests on humans.
According to the portal Reasons to believe, the study period in humans will be carried out for a period of up to 2 years, at which time, probably, science will no longer be so focused on the new coronavirus.
For Nikolai, “this was a great achievement for the beginning of this decade”. The professional believes that the arrival of the vaccine will systematically influence the fight against Alzheimer’s, whose current treatments are based on drugs that only help to delay the disease – and still without guarantee.
The definition of Alzheimer’s provided by the MSD Manual portal – first published in 1899 as a small reference book for doctors and pharmacists – classifies the disease as a type of “dementia that, in addition to causing a slow and progressive decrease in mental function , it also directly affects memory, thinking, judgment and the ability to learn”.
Also according to the manual, Alzheimer’s dementia affects 60 to 80% of the elderly. The document also points out that the existence of the disease in people under 65 years of age is extremely rare.
Currently, in the United States, the disease is found in 10% of people aged 65 and over – and, in addition, it affects women more than men, in part because women live longer. The percentage, meanwhile, increases with age: from 65 to 74 years, 3%; from 75 to 84 years old, 17% and from 85 years old or more, 32%.
The cause of the disease remains unknown, but it is believed that, as the manual points out, it comes from genetic factors.…