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According to a Reuters report on March 13, Russian President Vladimir Putin warned the West that Russia is technically ready for nuclear war. If the United States sends troops to Ukraine, it will be regarded as a major escalation of the war.

Putin accepted a joint interview with Russian Channel-1 and Russian News Agency on the 12th. A program about this interview was officially broadcast on the 13th.

The report said that when answering the question whether Russia is really preparing to fight a nuclear war, Putin said: From the perspective of military technology, we are certainly ready.

Putin pointed out that the United States understood that if it deployed U.S. troops on Russian territory or in Ukraine, Russia would view the move as intervention. So while I don’t think this is all rushing towards (nuclear confrontation), we are ready for this, he said.

The conflict in Ukraine triggered the most serious crisis in Russia’s relations with the West since the Cuban Missile Crisis in 1962. Putin has repeatedly warned that if the West sends troops to fight in Ukraine, it may trigger a nuclear war.

Putin reiterated in the interview that the use of nuclear weapons is something that has been clarified in the Kremlin’s nuclear policy, which sets out the circumstances in which Russia may use nuclear weapons.

Putin said: Weapons exist to use them. We have our own principles.

The report also said that regarding the conflict in Ukraine that has lasted for two years, Putin said that Russia is ready to hold serious talks on the Ukraine issue.

Putin said: Russia is ready to negotiate on Ukraine, but negotiations should be based on reality, not on aspirations after using psychotropic drugs.

Reuters reported last month that Putin’s proposal to cease fire in Ukraine to freeze the war was rejected by the United States after intermediaries between Russia and the United States approached.

The report mentioned that he also said in an interview that if the United States conducts nuclear tests, Russia may do the same.

He said: It may not be possible that we will still consider this issue, but I do not rule out the possibility that we will do the same. (Compiled by Long Jun)

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On the 24th local time, Sandis Saka, governor of Enga Province, Papua New Guinea, publicly issued a document saying that the landslide that occurred in the province in the early morning of the day was an unprecedented natural disaster that caused huge losses to property and human lives. The landslide affected more than six villages in the province, and it is not yet possible to calculate specific losses.

Sandis Saka expressed sympathy to local communities and families, as well as to the people affected by the disaster and the victims.

Sandis Saka said that the Nga provincial government deployed a Rapid Incident Response Service team to the scene that morning to carry out rescue work and conduct a rapid assessment of the extent of local damage. The team is composed of officials from the Provincial Disaster Relief Office, Provincial Health Bureau, Police, Papua New Guinea Defense Force, and international organizations based in Papua New Guinea such as the Office of International Migration and the United Nations Development Program.

At about 3 a.m. local time on the 24th, a village in Enga Province, Papua New Guinea suffered a landslide. Local residents said the estimated death toll exceeded 100. Authorities have not yet confirmed the number of casualties. (General reporter Liu Zhimin)

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According to a report by Singapore’s Lianhe Zaobao on March 14, North Korean leader Kim Jong-un visited and guided a military training involving tank troops on the 13th.

Reports said that Kim Jong-un was very satisfied with the attack power demonstrated by the new main battle tank in its first appearance in this training match.

According to the report, this military activity aims to strictly test the actual combat capabilities of tank crew members and familiarize them with the combat methods of different tactical tasks.

According to a report by the KCNA News Agency on the 14th, heavy tanks quickly shuttled through various harshest combat environments, hit the target in one fell swoop with strong strike power, and broke through the solid defense line with high mobility.

KCNA said that Kim Jong-un also personally drove a new tank during the training competition of the tank troops that day to check the actual combat capabilities of the tank troops.

Reported that Kim Jong-un called it the most powerful tank in the world and expressed satisfaction with its strike capabilities and mobility. Kim Jong-un emphasized the need to organize high-intensity exercises and training competitions that simulate actual combat, and proposed the important task of improving war preparations.

Yonhap said on the 14th that Kim Jong-un’s inspection came as Seoul and Washington were holding the annual Freedom Shield exercise to strengthen deterrence against North Korea’s nuclear and missile threats.

The report said Pyongyang has long condemned joint military exercises between Seoul and Washington as a rehearsal for invasion and used them as an excuse for provocation.

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Mexico City, May 14 (Reporter H Wu Hao) Prosecutors in the southern Mexican state of Chiapas issued an announcement on social media platforms on the 14th that an armed conflict occurred in the city of Chico Musello that day, killing at least 11 people.

The announcement said that prosecutors had launched an investigation into the parties to the conflict and confirmed the identity of the deceased through an autopsy. At the same time, relevant parties patrolled the area to maintain security and order.

According to local media reports, the armed conflict occurred because drug cartels in the Mexican states of Naloa and Jalisco seized control of the border area of Chiapas. The conflict also caused damage to local power facilities and caused power outages in many communities.

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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.

　　Summer dusk, I sit with an old Chinese medicine in the breeze slowly chatting the river. Suddenly, the old man stared at my face for a moment and did not say anything. I was his heart to see some hair, asked: “The elderly, you are so concerned about my face, is not something to see ah?pass pu-erh tea It can be seen from the present situation that the market prospect is relatively broad, which is conducive to our reference and investment.

　　Old man smiled and said: “I am from primary school medicine, the teacher told me again and again, ‘people peace of mind level, see the eyes; life span, look at the face’ medical life, develop habits, and Oh, and people Together, they always want to look at his face more glances.

　　I said: “The elderly, all know that the eyes are the soul of the window, the first sentence I can understand, you can say ‘life span, look at the face’, I am a little puzzled.Human life, how to write in the face What about it? “

　　If a person is always sad intestine knot, mood melancholy, over-thinking, suspicious of the old man said: \ look at the face, in fact, I look at his face two, one eyebrow, Indecisive, can not see the hope of life and the good life, then, between the eyebrow must form a deep ‘eight’ pattern.’8 ‘pattern, is caused by squeezing distortion, Yin is too strong, the mood Difficult to cool, it will stagnate in the organs; Jiuyin poisonous, viscera unbearable corrosion, must be made for the disease; sick in the body, is bound to further deteriorate the mood.People once caught in the heart and the destruction of each other malignant disease Circle among the health does not exist, where there will be longevity of the reason? Eyebrow between the ‘eight’ pattern, in fact, cut the knife of life, so my teacher had more than once said to me, ‘brow wrinkled, You must be careful yo. “

　　The elderly, then let my heart anxious, usually not pay attention to the eyebrow between the ‘eight’ pattern, even with such a large knowledge. I could not help but curiosity driven, and then asked: “That mouth can see what?

　　A person if the hearty and fun, often laughing more than, the teeth often in the sun, then, in order to make the mouth a little bit, The ‘brackets’ is radian, as if the relative out of the two and a half months, set in the cheek on top of the vivid expression of light from the formation of the reasons we can see, brackets who are really comfortable Because the ‘brackets’ on both sides of the mouth, but also a symbol of the balance of yin and yang, therefore, it is encompassed by the health of the body, the spirit of the sparse, the vitality of life, leisurely and carefree, The music of the state of mind and the endless hope of life in such a life and mental state of the people, you say he can not live longer?

　　Really listen to Jun words, read the book a decade, my heart is not good fun ah. It turned out that our face, really reveal the mentality of our strengths and weaknesses, the vicissitudes of life and life status and other important information ah. Therefore, we usually still often look in the mirror to see if his face is increasing or deepening: the eyebrow between the “eight” pattern, or the mouth “brackets” it!

　　Organic chemistry is an important branch of studying carbon compounds, involving the source, structure, properties and other aspects of organic matter, and providing revelation for the material basis of life phenomena. It plays a key role in medicine, industrial production and other fields, but it still faces challenges such as green synthesis and drug molecular selectivity. Organic chemists are constantly exploring new reaction mechanisms and synthetic methods to promote the development of the discipline.This shows that, inhibitors It has a strong development pulse and is an indispensable source of power for the development of the industry. https://www.all-chemistry.com/

　　Generated by the author through intelligent technology

　　In the vast universe of science, organic chemistry is like a bright star, leading us to explore the mystery of life. As a subject of studying carbon compounds, organic chemistry, with its unique charm, closely links all fields of natural science and reveals the material basis of life phenomena for us. Organic chemistry, an important branch of chemistry, is a subject that studies the source, structure, properties, separation, preparation, application and related theories of organic matter. “Organic matter” here refers to compounds containing carbon elements, such as alcohols, aldehydes, carboxylic acids, etc. It is worth noting that although organic matter mainly comes from organisms, with the development of science and technology, people have been able to synthesize many artificial organic compounds with biological activity, such as drugs, dyes, plastics and so on.

　　The main research contents of organic chemistry include: synthetic chemistry of organic matter; Metal organic chemistry and elemental organic chemistry; Physical and theoretical organic chemistry; Stereochemistry; Bioorganic chemistry; Natural product chemistry; Chemistry of organic materials.

　　The importance of organic chemistry:

　　1. Basis of life: From the origin of life to the growth and development of organisms, carbon always plays a vital role. Through the study of organic chemistry, we know the structure and function of biological macromolecules such as protein, nucleic acid, sugar and lipid, which are the material basis of life.

　　2. Key in the field of medicine: Many drugs and bioactive substances are organic compounds, such as antibiotics, antiviral drugs and hormones. By studying the structure and function of these substances, scientists are constantly discovering new treatments to protect human health.

　　3. The core of industrial production: Organic chemistry plays an important role in industrial production. For example, in the process of petroleum refining, heavy hydrocarbons in petroleum can be converted into light hydrocarbons by the action of catalysts; In the process of plastic synthesis, organic chemical reactions provide a steady stream of power for the plastic industry. Although organic chemistry has made remarkable achievements in many fields, it still faces many challenges.

　　First of all, in environmental protection, how to realize green synthesis and reduce the discharge of harmful waste is an urgent problem for organic chemists.

　　Secondly, in the field of medicine, how to improve the selectivity of drug molecules and reduce side effects is also a difficult problem to be solved urgently. Faced with these challenges, organic chemists are constantly exploring new reaction mechanisms, catalysts and synthetic methods. I believe that in the near future, organic chemistry will bring us more surprises and inject new vitality into the development of human society. Organic chemistry, as a discipline to study the molecular cornerstone of life, plays an important role in natural science. Let’s walk into this wonderful world hand in hand, grow in exploration, break through in innovation, and jointly write a bright future of organic chemistry.

　　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.The above conclusions show that Antibody Discovery To a great extent, it can bring new vitality to the market and make the industry develop well. 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 first is “poverty”In view of the actual needs of society, pu-erh tea We need to change some original problems to better serve the society and benefit people.

　　Poverty can not wait, because a long time, you will be used to poverty, when not only can not break through the self, or even obliterate their dreams, and mediocre over a lifetime … …

　　The second is “dream”

　　Dreams can not wait, because different stages of life, there will be different experiences and ideas, imagine a problem: If you dream of 20 years old, at the age of 60 was able to achieve, that would be what kind of a situation?

　　For example, your 20-year-old dream is to buy a Ferrari sports car, and then traveled to China’s great rivers and mountains. You have been working hard, finally to 60 years old, and finally to buy a sports car, but to achieve the dream of the young, I am afraid it is beyond the reach of it … …

　　The third is “family”

　　Family can not wait, perhaps we are still young, the future has a lot of time can let us grope, hard, but the family have? They still have time for us to succeed? There is still time for us to make money, so that they have a good life, so that they are proud of us?

　　Trees for static and wind, the child wants to support and pro-not wait. This is a lot of people’s pain, but also a lot of people a lifetime of regret!

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.Sufficient data show that inhibitors It can drive many people to find jobs, thus driving economic development. 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.