What industry does blockchain have a great impact on

3. Teachers from Huo coin University believe that blockchain can be called a "hydrogen bomb" business tool, which binds strong network effect and financial leverage to realize the effective allocation of digital value in space and time. It plays an important role in the development of enterprises. If you want to learn more about blockchain, you can pay attention to them. At present, online live courses are also carried out.

4. The impact of jinwowo network technology sharing blockchain on the society:
in the future, blockchain will be applied in any field and bring great impact on human life. Blockchain application projects are roughly divided into: proof of existence, contract, Internet of things, authentication, market forecasting, asset trading, e-commerce, social communication, file storage, data API (Application Programming Interface), etc
if the blockchain technology can be used for preservation, there will be historical data of personal medical treatment, and there will be data available for future medical treatment or health planning. The real master of this data is the patient himself, not the hospital or a third-party organization. In addition, these data have strong privacy, and the use of blockchain technology also helps to protect the privacy of patients.

5.

Russia's World Cup brings us $14 billion in revenue to Russia, with GDP growth rate of about 1%. During the world cup, it is estimated that fans around the world can also bring us $3 billion in revenue, with GDP growth rate of about 0.2%. There are three main reasons:

1. Hotels: there is a sudden increase in foreign tourists, but there are only a few local hotels. The reservation quantity and price of hotels also went up ring the world cup. In 2014, the number of restaurants in Rio de Janeiro and Sao Paulo, the big cities of Brazil World Cup, increased to 1-2 times, and the famous coastal area of Copacabana increased to 220%, Manaus, the most remote, has even risen tenfold

2. Air tickets: ring the 2014 World Cup in Brazil, the price of air tickets on the date and time of the competition is more than five times higher than that on the adjacent dates. The number of international flights scheled to fly to Russia ring this year's world cup has exceeded twice that of the same period last year, and the number of tourists will reach the highest at the start of the competition, and maintain a high level in the rest of June, 118.3% higher than that of last year

In 2006, the average price of all 2.7 million tickets for the world cup in Germany was about $300, and the ticket revenue alone was more than $1 billion. In 2014, the ticket and commodity price revenue of the world cup in Brazil reached 500 million yuan, and the average audience of the world cup exceeded 53000, which was the highest in the past five years

During the world cup, many foreign fans will not go back to their hometown just to watch the airport games. They will have a special dish in the daytime, barbecue with beer in the evening, and then go to the souvenir shop to buy the same model of the world cup. The fans will definitely have a good time in the local area and then go home. The consumption of these fans has greatly boosted the local economic growth. The per capita consumption of foreign tourists arriving in Germany ring the 2006 World Cup is between 965 and 1200 US dollars

ticket revenue is 400 million euro, tourist consumption revenue is about 3 billion euro, other private consumption is about 4 billion euro, creating 138000 jobs, driving GDP growth by 0.3%

6. 1. Now business hall cards are in principle need real name system, only in the downstream distributors here can not need ID card
therefore, the business hall is not wrong
2. Mobile phone stores belong to distributors. It can ask you to provide ID card to deal with there, also can omit not to ask
the number with 8 needs to be changed, which is their own rule
3. Mobile phone numbers that don't need ID cards are not a big problem. Pay attention to the package and cost when buying the card.

7. At present, many instries can carry out blockchain plus, which is a new hot technology. Just like the previous Internet, including public services, is also integrated with blockchain technology. Changsha high tech Zone has launched a SMIC blockchain service platform project, which is to apply the blockchain plus public service mode to all enterprises to collect information on the blockchain.

8.

Selenium is a chemical element and a nonmetal

There are two forms of selenium in nature: inorganic selenium and plant active selenium. Inorganic selenium generally refers to sodium selenite and sodium selenite, which are obtained from the by-procts of metal deposits; The latter is formed by the combination of selenium and amino acids through biotransformation, and generally exists in the form of selenomethionine

There are four main functions of selenium:

1. Scientific confirmation: it is precisely because of & quot; Selenium & quot; It can prevent organ aging and pathological changes, delay aging, enhance immunity, resist diseases, resist toxic heavy metals, rece the side effects of radiotherapy and chemotherapy, and prevent cancer

Second, to prevent diabetes. Selenium is an active component of glutathione peroxidase (GSH PX), which can prevent pancreatic islets β Cell oxidative damage, make its function normal, promote sugar metabolism, rece blood sugar and urine sugar, improve the symptoms of diabetic patients

Third, detoxification and detoxification. Selenium has a strong binding force with metal and can resist the toxicity of cadmium to kidney, gonad and central nervous system. Selenium combines with mercury, lead, tin, thallium and other heavy metals in the body to form a metalloselenoprotein complex and detoxify

Prevention and treatment of liver disease. After 16 years of epidemiological investigation of liver cancer in China, Chinese medical expert Yu Shuyu found that the selenium content in the blood of residents with high incidence of liver cancer is lower than that in low incidence area of liver cancer. The incidence rate of liver cancer is negatively correlated with blood selenium level. She added selenium to 130 thousand residents in Qidong County of Jiangsu Province, and confirmed that selenium supplementation reced the incidence rate of liver cancer by 35%, and the incidence rate of liver cancer was 50%. p>

extended data :

don't blindly supplement selenium, the key to a balanced diet

in recent years, many people have joined the "army of selenium supplement", believing that selenium supplement is helpful to "cancer prevention". However, this practice is not worth encouraging, because selenium, like other trace elements, should adhere to the principle of appropriate amount, not more is better, and it is not suitable for everyone

selenium has such a strong anti-cancer effect. The results of the study have not yet been reached. Some studies have shown that selenium can rece the incidence rate of some cancers, but some studies have negated this conclusion. Therefore, the scientific research evidence of selenium as an anticancer agent is still very limited

The range between the beneficial and toxic amounts of selenium is the narrowest among all trace elements, so the most technical content is required for selenium supplement, and it will be excessive if you are not careful. Under normal circumstances, the recommended daily selenium intake is 50 ~ 200 μ G

In addition, excessive supplement of selenium will hinder the absorption of manganese in human body, and lack of manganese will cause a series of health problems. Therefore, we can not blindly supplement selenium. Some researchers warn that blind selenium supplement may increase the risk of some diseases. If you want to supplement selenium, you should go to a regular hospital to determine the level of trace elements in the body, and supplement selenium under the guidance of doctors to avoid poisoning

human body can not synthesize selenium itself, and food is the main source of selenium. A healthy person who is not partial to or picky about food can meet the body's demand for selenium through a balanced diet without additional supplement

all kinds of selenium rich foods on the market, such as selenium rich rice, selenium rich vegetables, etc., can be eaten occasionally, but it is not necessary to buy them often. If you must eat selenium rich food, it's best to choose the one marked with selenium concentration, calculate the body's needs and then buy it

The content of selenium in natural food was as follows: animal viscera, seafood, fish, eggs, meat, grain, milk, onion, garlic, vegetables and fruits. Sesame and garlic also contain a lot of selenium. The selenium content of the same crop in different areas is very different, and there is an order of magnitude difference of 1000 times or even 10000 times