Bøger af Mohammad Zaree

This book could provide a comprehensive definition of blockchain technology, how it works, and the foundational concepts behind it. Blockchain should be considered a special type of database. You may have heard the term "distributed ledger" along with Blockchain in the specialized review of cryptocurrencies such as Bitcoin. Both refer to the same concept. Blockchain has unique characteristics and there are specific rules on how data can be added. One of the points that make this technology a great platform for the development of cryptocurrencies is the impossibility of manipulating or changing the data after it is stored. Data is added over time in a framework of blocks. Each block builds on the last one and contains information to link to the previous block. By viewing the newest and most up-to-date block, we can check that it was created after the last option. By going through the blockchain and following the blocks from the end to the beginning, we will reach the first item called Genesis Block.

Today, the progress of each country is measured by its educational and health indicators. The more educational and healthcare facilities are provided for the people of the country, the better the country has a better position in the world community. At present, attention to health is desired more than treatment, and in this case, there are policies to prevent the spread of many diseases, which still do not seem to be enough. The high cost of medicine and treatment, the lack of well-equipped hospitals in many cities, the lack of specialist doctors in many parts of the country, and the lack of medicine, etc., are among the issues in the health and treatment sector, and new measures should be taken to deal with these issues. adopted a more effective one. On the other hand, one of the factors of human efficiency depends on the provision of healthy and sufficient food, therefore, the production and storage of food according to sanitary and technical principles is one of the foundations of public health and prevention of various diseases.