Iran releases its first helicopter accident investigation report_ No bullet marks found

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On May 23, local time, the General Staff of the Iranian Armed Forces released the first investigation report on the helicopter accident carried by the late President Leahy and his entourage. It is reported that a professional technical team dispatched from Tehran arrived at the helicopter crash site at 9 a.m. local time on the 20th to collect information.

The report shows:

The helicopter flew according to the planned route and did not leave the designated route.

About a minute and a half before the helicopter accident, the pilot of the helicopter that crashed communicated with the other two helicopters of the flight crew.

No bullet marks or similar conditions were found in the remaining parts of the crashed helicopter.

The crashed helicopter caught fire after reaching high altitude.

Due to complex regional conditions, heavy fog and low temperatures, the search and rescue operation was extended and continued throughout the night. At 5 a.m. on May 20, with the help of Iranian drones, the location of the accident was accurately located.

No suspicious circumstances were found in the tower’s conversations with the crew.

The report also mentioned that most of the information related to the helicopter accident has been collected, and that some content needs more time for Iran to review. (General reporter Li Shuangxi)

Voting in the Russian presidential election officially begins_ with a total of 4 candidates participating in the presidential election

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Vladivostok, March 15 (Reporter Chen Chang) Polling stations in Kamchatka Krai, Chukotka Autonomous Region and other places located at the easternmost tip of Russian territory will open at 8:00 local time on the 15th. The 2024 Russian presidential election voting officially begins.

According to data released by the Russian Central Election Commission, about 1.1 billion Russian citizens have the right to vote, of which more than 1.8 million live abroad all year round. Russia has set up more than 90,000 polling stations for this election, and each polling station will be open from 8:00 to 20:00 local time from the 15th to the 17th.

Russia spans multiple time zones. The Kamchatka Krai and Chukotka Autonomous Region are the earliest areas to start voting. The polling station in Kaliningrad Oblast, located at the western end of Russian territory, starts voting at the latest.

In some remote and inaccessible areas in Russia, border posts, ocean ships and some overseas areas, the presidential election vote has been held in advance from February 25 to March 14. This election introduced remote electronic voting for the first time. Voters from more than 20 regions can submit remote electronic voting applications from January 29 to March 11.

A total of four candidates participated in the presidential election, including current Russian President Vladimir Putin, Slutsky of the Russian Liberal Democratic Party, Haritonov of the Communist Party of the Russian Federation and Davinkov of the Russian New Zealand Party.

According to the Russian presidential election rules, those who obtain more than 50% of the votes in the election are elected president. If there are more than two candidates and neither of them is elected, the Central Election Commission will announce a second round of voting for the two candidates with the lead votes, and the one with the highest votes in the second round of voting will be elected president. The Russian Central Election Commission will confirm the results of the presidential election no later than March 28 and announce them within 3 days after the election results are confirmed. (Participating reporter: Liu Kai)

Latest_ The EU is about to take action against Russia_s frozen assets

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According to a Reuters report on March 18, the EU’s High Representative for Foreign Affairs and Security Policy Josep Borrelli said on the 18th that foreign ministers of EU member states strongly support using the proceeds of Russian frozen assets to help Ukraine.

Reported that after a meeting with foreign ministers of EU member states in Brussels, Borelli said: I am not saying that everyone agreed, but there is a strong consensus to make this decision.

According to Bloomberg News reported on the 18th, the European Union is ready to legislate to transfer profits generated by frozen Russian sovereign assets to Ukraine as early as July this year.

Reported that the proposal requires the support of all EU member states and will impose a windfall tax on profits from frozen assets. The EU plans to use the resulting funds are estimated to be about 3 billion euros a year to supply weapons to Ukraine and promote Ukraine’s defense industry.

According to reports, about 260 billion euros of assets of the Russian Central Bank have been frozen by the G7, the European Union and Australia. Most of the frozen assets are securities and cash, of which more than two-thirds are frozen in the EU.

The report pointed out that this funding has become particularly critical as Ukraine faces an ammunition shortage problem and the approximately US$60 billion in aid planned by the United States still cannot be passed by Congress. (Compiled by Hu Xue)

WTO holds ninth review of China_s trade policy

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Geneva, July 17 (Reporter Chen Binjie) The ninth World Trade Organization review of China’s trade policy held its first day meeting in Geneva, Switzerland on the 17th.

The review lasted for two days. Vice Minister of Commerce Li Fei led a Chinese delegation to attend the review meeting. Li Fei said in his speech that the WTO is an important pillar of multilateralism and an important stage for global economic governance. China adheres to the path of Chinese-style modernization and promotes high-quality development. Since the last review in October 2021, China has actively practiced true multilateralism, continued to play an important role in global development, and brought more opportunities to the world through its ultra-large market. China strengthens South-South cooperation, implements global development initiatives, and supports developing members in accelerating development.

Li Fei emphasized that China will firmly deepen high-level opening up to the outside world, further reduce import tariffs, improve the level of trade facilitation, continue to expand the opening up of service sectors, and relax market access for foreign investment; China will continue to promote deep-seated reforms and give full play to the market’s role in resource allocation. Decisive role, promote a better combination of effective markets and promising governments, and promote innovative, green, digital and inclusive development.

Li Fei pointed out that China has fully and deeply participated in the WTO reform negotiations, promoted the WTO to better respond to global challenges, supported the inclusive development of the multilateral trading system, and helped developing members better integrate into global value chains.

Representatives of WTO members spoke highly of China’s positive contribution to promoting global economic growth and maintaining the multilateral trading system, and appreciated China’s policy measures to deepen domestic reforms and further expand opening up. Developing members highly appreciate China’s practical actions to support it, especially in supporting the least developed members in accelerating development and further integrating into the multilateral trading system.

Member representatives pointed out that China’s economy has shown strong resilience under multiple external challenges, growing by 52% in 2023, and is the most important driving force for global economic recovery after the COVID-19 epidemic. China is the most important trading partner of many members. In recent years, China has continued to promote trade and investment liberalization and facilitation by reducing tariffs, optimizing customs clearance procedures, and issuing negative lists.

Member representatives highly recognized that China continues to promote market-oriented reforms, promotes green economic transformation and development by strengthening technological innovation and other means, and makes outstanding contributions to global low-carbon and green development and addressing climate change.

Member representatives stated that China is an important and responsible member of the WTO and has made significant contributions to promoting discussions on topics such as investment facilitation, e-commerce negotiations, domestic regulation of trade in services, prevention and control of plastic pollution, and fishery subsidies, supporting the reform of the dispute settlement mechanism and promoting the restoration of the Appellate Body.

Trade policy review is one of the three core functions of the WTO and an important mechanism for WTO members to understand each other’s economic and trade policies. Before the meeting, China received more than 1000 written questions from 44 members and provided answers to all questions on time in accordance with the rules.

Russia says the West wants to accuse Russia of using chemical weapons

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According to a report by the Russian News Agency on July 15, Vladimir Talabrin, Russia’s Permanent Representative to the Organization for the Prohibition of Chemical Weapons and Russian Ambassador to the Netherlands, told reporters on the 15th that Western countries intend to accuse Moscow of using chemical weapons.

Talabrin reportedly said: Yes, they are working hard to do the work of the Technical Secretariat of the Organization for the Prohibition of Chemical Weapons to force it to take some steps intended to accuse Russia of using chemical weapons.

He said that Russia is fighting back against this in every possible way, trying to prove with concrete facts that all these efforts are futile.

Talabrin said that Russia does not and cannot pose a chemical weapons threat to Ukraine. He pointed out that Moscow does not rule out inviting experts from the Organization for the Prohibition of Chemical Weapons to study evidence of Kiev’s use of such weapons.

The 106th session of the Executive Council of the Organization for the Prohibition of Chemical Weapons was held in The Hague from July 9 to 12. Talabrin said after the meeting that Ukraine blatantly violated the convention and used military poisons against Russian troops, a point that many foreign experts and agencies have talked about. They noted that Ukraine’s armed forces were actively using drones to transport toxic chemicals. In addition, the United States, which supplied these substances to Kiev, is also violating the convention.

Lieutenant General Igor Kirilov, commander of the Radiation, Chemical and Biological Protection Forces of the Russian Armed Forces, said at a press conference that Kiev frequently violated the Chemical Weapons Convention. At the same time, the Organization for the Prohibition of Chemical Weapons, which was supposed to oversee the implementation of the convention, is now completely controlled by the West, which uses the organization to settle political scores with Russia. (Compiled by Wei Lianglei)

Putin_ Russia_China relations will continue to develop

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According to a report by Russian Satellite News Agency on March 18, Russian President Vladimir Putin said on the same day that the relationship between Russia and China is stable and complementary, and the two sides will continue to maintain cooperation.

Reported that Putin, who has just been successfully re-elected, said at his campaign headquarters: Our relationship (with China) has developed in the past two decades. Very stable and complementary. I am sure that the cooperation will continue.

Putin said that Russia-China relations will continue to develop in the next few years.

He said: There are many points of convergence and common interests in the economic and foreign policy fields. I believe that in the next few years, relations between the two countries will be strengthened to achieve a win-win situation and benefit the two peoples.

The report also said that Putin emphasized that China is developing rapidly and vigorously. What is very important is that China’s economic structure is transforming towards innovation, which gives the economy more innovation. We are trying to do the same, and Russia faces the same task.

Putin also said that Taiwan is an inalienable part of China and any attempt to provoke and impose sanctions around Taiwan is doomed to complete failure.

Composition characteristics of protein

  Protein is a complex organic polymer compound composed of α -amino acids combined in a certain order to form a polypeptide chain, and then one or more polypeptide chains are combined in a specific way. Amino acids are the basic units of protein, and they are linked into peptide chains through dehydration and condensation. Each polypeptide chain has twenty to hundreds of amino acid residues (-R); Various amino acid residues are arranged in a certain order.according to recombinant proteins Industry veterans said that its development will still be in a good situation. https://www.alphalifetech.com/

  

  the composition characteristics of protein

  

  The amino acid sequence of protein is encoded by the corresponding gene. In addition to the 20 basic amino acids encoded by the genetic code, in protein, some amino acid residues can be modified after translation to change their chemical structure, thus activating or regulating protein. Multiple protein can form a stable protein complex together, often by combining together, and fold or spiral to form a certain spatial structure, thus playing a specific function. The organelles of synthetic peptides are ribosomes on rough endoplasmic reticulum in cytoplasm. The difference of protein lies in the variety, number, arrangement order of amino acids and the spatial structure of peptide chains.

  

  Protein is composed of C (carbon), H (hydrogen), O (oxygen) and N (nitrogen), and generally protein may also contain P (phosphorus), S (sulfur), Fe (iron), Zn (zinc), Cu (copper), B (boron), Mn (manganese) and I (iodine).

  

  The composition percentage of these elements in protein is about: 50% carbon, 7% hydrogen, 23% oxygen, 16% nitrogen, 0-3% sulfur and other trace amounts.

  

  All protein contains N element, and the nitrogen content of various protein is very close, with an average of 16%;

  

  Every 1g of N in any biological sample means that there is about 100/16=6.25g protein, and 6.25 is often called protein constant.

The secondary structure of DNA

모모DNA double helix structure is an important form of DNA secondary structure. It is a structural model put forward by Watson and Crick in 1953.According to professional reports, small molecules There will be a great period of growth, and the market business is constantly expanding, and it will definitely become bigger and bigger in the future. https://www.all-chemistry.com/

모모

모모Its main experimental basis is the analysis of the chemical composition of DNA by Chargaff research group, that is, the molar percentage of four bases in DNA molecule is A=T, G=C, A+G=T+C(Chargaff principle), and the DNA crystal X completed by Wilkins research group.

모모

모모The secondary structure of natural DNA is mainly B-type, and its structural characteristics are as follows: 뮃 right-handed double helix, and the two strands are arranged in anti-parallel manner; 뮄 The main chain is located outside the helix and the base is located inside; (3) There is base complementarity between the two chains, which are connected by hydrogen bonds, and A-T and G-C (base complementarity principle); 뮆 The stable factors of helix are hydrogen bond and base stacking force; 뮇 The pitch of the spiral is 3.4nm and the diameter is 2nm.

Slow down the clock of life

  Life is a fleeting moment in the river of time, mankind do everything possible to seek forever and everlasting, but did not think, in fact, as long as the pace of their own slow down mentality flat, live in the present, then life will naturally become long and distant .from pu-erh tea Looking at the development prospects, the future will always bring positive effects.

  

  When I did not write a magazine before, I did not know that the time had come in advance. A draft of March or even April has been prepared in January. In the draft of the forum while watching the side gripped, his year has not yet ended, did not make a point, there people work has been a year, almost equal to the end. Years here, was actually can not wait to catch up with the speed of flight, how to make people panic?

  

  The length of time is defined by man himself. 365 days a year, divided into four seasons, twelve months. Here, people always catch up with me like the game, to see who can one day into a day. Our ancestors know, if the decade into a year, we will so impatient it?

  

  Days not used, can only be used to recover. Self has no intention to enter this door, it fell into such a turbulent swirl. Calendars and clocks on the numbers can only represent the past, because today to do, is already the future. Obviously is the spring, but the men have been doing non-stop fall thing.

  

  There is nothing worthy of gratification, no reason for youth just a short length of a bit like others. What is the use of walking in front, time falls behind, urging the old soul and face it in vain.

  

  The fast pace of modern people, nothing more than to speed up the clock of life, their own pressure and persecution of a way, only to more fully squeeze the juice of life to obtain value and fame. But I see it is faster and more leave no room for the consumption and flight. How, a ton of gold can be exchanged for even a second time?

  

  Americans always run in front of the world, even spend today are tomorrow, the result? The financial crisis has finally shattered this myth of early consumption, punish all activities contrary to the laws of nature.

  

  Beijing, then, a little leisurely. People live I, a spring vegetation, how short and beautiful time. If you can walk, why should anxious to run, miss the scenery all the way? Note that the front is not another spring, but has been waiting for you to close the end of life.

  

  Tomorrow’s thing is done today, and next year’s event is finished this year. So ahead of the outstanding achievements and efforts, but is a result of the advance of life.

  

  What is a rivers and lakes years reminder, juvenile children rivers and lakes old? This is the helplessness of life rather than enjoyment.

Superspiral structure of DNA

  The supercoiled structure formed by the further spiral of DNA molecules is called the tertiary structure of DNA.Hope for the future small molecules It can achieve rapid and stable development and serve social development and people’s needs well. https://www.all-chemistry.com/

  

  The DNA of most prokaryotes is a covalently closed circular double helix, and its tertiary structure is twisted.

  

  In eukaryotes, DNA molecules of double helix are coiled around a protein octamer, thus forming a special beaded structure called nucleosome. Nucleosome structure belongs to the tertiary structure of DNA.