The most difficult face changing operation in bitcoin block
the reason why we need six confirmations is that it is more difficult to obtain the optimal solution (to prevent single node fraud). One block may also be able to get an optimal solution, and it is basically impossible to get six blocks together. It has nothing to do with bifurcation
Bitcoin broke through US $52000 for the first time, has been showing a soaring trend. I think it's more about people's pursuit of bitcoin . In fact, about such virtual currency, I think it's more about everyone's own pursuit. If we don't have any pursuit of bitcoin, then bitcoin will certainly have a high value and won't enter the museum, Every one of us really wants to make money, but we should be cautious about investing in things like bitcoin. If we do it well, we may make a lot of money. However, if we do it badly and fall apart one by one, we are not sure how sad it will be, So for us, we must be more cautious about such things. For a state of investment, we should have money to invest, but if we don't have money, we should never invest, because our own money is hard won to invest, which means that there will be ups and downs
Of course, this is not what we want in the end. In fact, what most investors want most is what they invest in, which keeps rising and they can make a lot of money. However, in the face of such things, everyone of us is not very clear and does not know whether we can make money, so it depends on each of us, This kind of thought in my heart and this kind of feeling in my heart. For bitcoin, which broke through $52000 for the first time, has been showing a soaring trend. I think it is more about people's pursuit of bitcointhe price of bitcoin is determined by supply and demand. When the demand for bitcoin increases, the price of bitcoin rises; As demand decreases, prices fall. At present, only a few bitcoins are in circulation, and new bitcoins are issued at a predictable rate of graal decline, which means that demand must follow this inflation level in order to maintain price stability. Compared with the market scale it may become, bitcoin is still a relatively small market at present. It does not need a lot of money to make the market price fluctuate up and down. Therefore, the price of bitcoin is still very unstable.
The langney research center of New York University in the United States announced that they have successfully completed the first case of face changing and hand changing surgery in the world for a man, which gives the man hope to recover from his daily life
According to reports, a 22-year-old man from Ohio, United Kingdom, suffered a serious car accident in 2018. Although he recovered one life, his whole body was burned 80% and his face was completely disfigured. In order to better restore dimeo to his normal daily life, the langney research center of the University of the United States has replaced his whole face and hands. Hand in recent months after the operation, there is no abnormality in the body of dimeo, and the "beginner" is becoming more and more flexible I have no choice but to lament the development of medicine. The development trend of medicine is really the welfare of patients 
let's talk about HLA first. In human organ transplantation, HLA (human leucocyte antigen) reflects the compatibility of two indivials' immunity. In human organ transplantation, it is also the patient's acceptance of human organ transplantation
The success of human organ transplantation does not mean that everything will go well in the future. After transplantation, we should also fight with the complications related to immune enhancers, infectious complications, malignant tumor complications, and declining complications of multiple organ transplantation. Because the transplanted human organs will cause rejection reaction, patients are forced to take anti rejection drugs for life, and anti rejection drugs will weaken their human immune system. Once the human immune system weakens, the patient's body will become a seedbed of tumor stem cells or hidden tumor cells, which will not be inhibited in growth and developmentFebruary 3, 2021 local time: New York University langney Health Center said in a statement that they have successfully completed the world's first joint face and hands transplantation. This patient is dimeo, who underwent a 23 hour major operation in New York on August 12, 2020. The operation team consists of 16 surgeons, 6 medical teams and a total of 80 staff
now, nearly half a year later, 22-year-old dimeo is relearning how to smile and blink with his "new face", and how to pinch and squeeze with his "novice". Now he can dress, eat and play billiards
{rrrrrrr}
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the first face changer in the United States died and was shot in the face by her husband. She underwent 30 operations for her freshmen
according to foreign media, the Cleveland Clinic in Ohio confirmed that Connie Karp, the first patient in the United States to undergo partial facial transplant surgery, had been treated for 12 years, He died on July 30, 2020 at the age of 57. According to the Spanish "Le Monde" website on August 1, 2020, on the evening of July 31, 2020, Cleveland Clinic announced the above news on its official twitter account, but did not mention the specific cause of death, and quoted Frank pape, one of its attending doctors, as saying that she was "a great pioneer"
Pape said that Karp made a decision that made many people shy away, which was a "permanent gift" for all mankind According to the report, in September 2004, Karp's husband planned to kill her first and then commit suicide, so he shot her in the face with a shotgun at a distance of more than two meters. Only the upper eyelids, forehead, lower lip and chin remained in Karp's face. His husband didn't die after committing suicide and was only sentenced to seven years in prisonit is reported that in December 2008, Karp received a partial face transplant at the Cleveland Clinic. Previously, she had undergone 30 surgeries to regain her life. The operation, which lasted two days and took 22 hours, was very complicated
According to the report, facial transplantation is a gamble of life and death, because the drugs used to prevent rejection are likely to lead to a series of infections and even cancer The report also said that Karp was committed to fighting domestic violence after the operation and encouraged other patients to accept face transplants