However, there is so much information about implantation that Hang does not know how to choose. In the cutlery world group, Mr. Nguyen C. shared about collagen-only products imported from Korea and most of the customers who buy these products are spas. Students only need to register for a period of time to be able to stretch threads for customers. Assoc. Dr. BS. Do Quang Hung, General Secretary of the Ho Chi Minh City Plastic Surgery Association, said that currently, beauty stretch marks are applied a lot in spas. Assoc. Hung himself has received many cases of complications when thread tensioning. Typically, a 41-year-old female patient has just called for help because of complications of facial pain and inflammation in the surgical area due to a facelift with only a private cosmetic clinic. According to the patient’s account, because she wanted to look younger, she went to have a skin tightening on her temples at a beauty salon in District 3, Ho Chi Minh City. After suffering hundreds of needles, but a month later, she still felt pain in both temples, so she went to Dr. Hung to ask for help. Doctor Hung had to surgically remove her temporal skin due to festering complications. Stretch only beauty. According to master, specialist doctor II Nguyen Minh Quang – Deputy Head of the Department of Research and Application of Stem Cell Technology, National Hospital of Dermatology, stretching is a rather popular beauty method. However, when looking at the image provided by the reporter, Dr. Quang was not clear about how the implant was done. “The blue procedure glove does not understand what it is?, the essence of the word “collagen thread stretch” is wrong. It is a marketing language that actually “stretches only to increase collagen production” – Dr. Minh said. According to Dr. Quang, many facilities now advertise stretch only with beautiful words and in those establishments, almost the people who perform them are not doctors. Most are spas with no technical safety procedures, just unlicensed, floating items. This method is considered a minimally invasive method. Similar to using fillers such as fillers, toxin are methods that are considered to change the structure of skin tissue, thereby creating obvious cosmetic effects. Before performing this measure, it is necessary to have an evaluation by a plastic surgeon and a cosmetic dermatology doctor to see if it is suitable for the indications. If it is appropriate, the doctors will plan the treatment, then proceed to perform this technique. This is a quite popular cosmetic method at home and abroad, has been applied for about 7-8 years in Vietnam, in which it has emerged again for a few years now. With thread material, people currently use 2 types of thread, which are slow-draining threads (only 24k gold and standards PDO, PLLA, PLC, catgut). For this thread, when entering the skin tissue, there will be a supporting effect. At the same time then only this will dissipate in the skin organization. The process that exists in the skin will stimulate the production of collagen and elastin, thereby helping to rejuvenate the skin, while limiting the formation of wrinkles … Or in some cases, the thread is used for reducing fat, tightening the biceps, abdomen, etc. Depending on the material, the time spent can only be from 6 months to several years. Stretching is also contraindicated in some cases because of an allergy to the above thread materials,… When there is a need to stretch threads, it is best for customers to go to reputable medical facilities for advice before implementation.

Mr. Nguyen Duc Hoang (Hai Ba Trung, Hanoi) said that he has lost his bald hair for about ten years. Although he is only 40 years old, his hair is already bald. Initially, Mr. Hoang also went to buy drugs to treat, stimulate hair growth … but the effect did not improve. Bald hair makes him lose confidence in communication. Many times I want to shave, but I can’t because of the specifics of the job, if I shave, I have to change the way I dress. Mr. Hoang works for a joint venture company specializing in supplying imported aluminum and plastic materials, so the reception is also a lot. Every time he goes out to meet a customer, everyone asks him “Are you a director, are you a boss”.. a lot. Many times Mr. Hoang goes with his boss to meet new customers, sometimes the partner rushes out to shake Mr. Hoang’s hand, leaving the real boss behind. Hoang only smiled wryly, sometimes his boss frowned because he was mistaken. Recently, Mr. Hoang heard about the hair transplant method, he was very interested in it, but when he consulted a few medical facilities, there were many problems that were not as simple as growing rice. Mr. Bui Phan Vinh (born 1987, Thai Binh) is also bald. Friends often joke that when he washes his face, it takes a long time to wash his hair. Vinh confided that to others, strong hair exudes masculinity, elegance and bravery, while he, on the contrary, loses confidence. Vinh went to the hospital and bought hair growth spray, but it didn’t work. Whenever there is an advertisement for a hair growth drug, Vinh buys and uses it from oral drugs to stimulate hair growth to spray and apply, but the results are not satisfactory, making him depressed. By now, at 34 years old, Vinh is still afraid to get married, because his hair is bald, he still feels guilty when taking pictures or having certain exchanges. Illustration. How is the treatment? BSCKII – Quach Thi Ha Giang – National Hospital of Dermatology said that male hormone hair loss is the most common type of hair loss in men. The forehead, top, and temples are common hair loss sites. In these areas, the hair becomes thin, reducing the diameter of the hair, and reducing the density of the hair. Many men are not too concerned about their problems, peacefully living with thinning hair that progresses naturally, but many people are very worried, guilty, low self-esteem, significantly affecting their quality of life. . Many men complain that baldness causes psychological guilt. Dr. Giang said that currently the treatment of male pattern baldness needs to determine the cause and there are many single or combination therapies that have been performed for patients with positive effects. However, dermatologists need to advise patients to understand the advantages and disadvantages of each therapy so that patients can adhere to and maintain treatment. Currently, hair transplant to treat baldness is of great interest to many people, according to Dr. Giang, this technique was first performed in 1930 in Japan for the hair loss area in the eyebrows. This is a measure that can clearly and long-term improve male pattern baldness. Hair transplant is a technique to permanently transfer hair follicles from the occipital area of ​​the scalp to the bald area at the top and forehead. With modern techniques, the survival rate of transplanted hair follicles can reach over 90%. The prerequisites for this procedure are stable hair loss and a sufficient amount of hair in the occipital region for implantation (> 40 hair follicles/cm2). According to Dr. Giang, there are two basic autologous hair transplant techniques: FUT (follicle unit transplantation) and FUE (follicle unit extraction). Each technique has different pros and cons. First, FUT hair transplant technique – take a scalp flap from 8-12mm wide, 20-30cm long in the occipital area or horizontally behind the ear, then separate each hair follicle to transplant into the bald area. The flap of skin that has just been cut will be sutured, there is a risk of scarring. Monday, FUE hair transplant technique – precisely remove individual hair follicles from the scalp, then graft to the bald area. This method has the advantage of less scarring, less pain, less swelling, but it takes a long time to perform the technique. After the hair transplant, Dr. Giang said, the hair follicles will enter a phase of cessation of growth, so it takes at least 3 months to see cosmetic improvements in those who are transplanted. Local hair follicles can still continue to progress naturally, so it is necessary to continue to maintain systemic and topical treatments such as minoxidil, finasteride for the best effect. In addition, men can be treated with other methods such as pills, low-dose laser…

Over the years, farmers northern provinces selected multi-element fertilizer (DYT) NPK Van Dien specialized in fertilizing rice crops with outstanding efficiency, the product lines of DYT NPK Van Dien fertilizer have 13 nutritional components, the ratio of nutrients depends on Depending on the type of fertilizer used for priming or for top dressing. According to local custom and also due to market demand, rice variety structure In the northern mountainous provinces, it is quite abundant: in addition to cold rice varieties such as hybrid rice, short-term pure rice KD18. Vnr20… group of semi-photosensitive rice varieties such as U17, U19, or tall sticky rice varieties; In many places, special photosensitive rice varieties are planted such as Bao Thai, yellow flower sticky rice… (Dinh Hoa – Thai Nguyen area). These are high quality rice varieties, but the percentage of flat seeds is high and it is easy to fall if lack of phosphorus and other medium and micro nutrients. From the agronomic characteristics of rice transplanting, as well as nutritional requirements, specialized NPK fertilizer Van Dien provide nutrients for rice plants, from transplanting to the time of flower differentiation (Nutritional growth stage). The fertilizer product lines DYT NPK Van Dien have all 13 nutritional ingredients Research on physiology and nutrition of rice shows that: The life of rice plants can be divided into 2 growth stages: vegetative and vegetative. The vegetative growth stage was counted from the sowing rice to the female standing rice. Crop season, this period usually lasts about 30-35 days with short-term cold varieties; (In particular, the photosensitive rice varieties must wait for a “short day”, which is close to the Bach Lo period, before the rice changes to the vegetative stage). At this stage, the roots develop in the shallow soil layer (about 3-5cm) and in the direction of spreading according to the cover of the rice leaves, when the set of rice leaves covers the row, the rice roots are also woven into the field. this period rice focus on tillering, spreading leaves, spreading sheath to make false stems, so the most nutritional needs are protein, potassium and less phosphorus and other medium and micronutrients. DYT NPK fertilizer specializing in fertilizing rice has many different formulations such as: multi-factor fertilizer NPK ( 16 :5 :17) has a content of N 16%, P2O5 5%. K2O 17% Mg 5%, SiO2 7%, CaO 8%, S 2%, etc. Currently, many places people use NPK . formula 13:3:10 +TE. These are fertilizers with high nutritional content of nitrogen, helping rice plants to lay strong, grow leaves, and grow stems. The nutrient content of potassium is quite high in the fertilizer to promote moderate tillering. In addition to the balance of NPK substances according to the needs of rice plants at tillering stage, there are also enough medium and micronutrients to help rice plants grow healthy, hard rhizomes, good resistance to pests and unfavorable environment. The stage of vegetative growth was calculated from the time of differentiation of the stem to the maturity of the rice. The long-term rice varieties have the time to stand female, while the short-term rice varieties usually do not show the time when the rice is female, but the rice plants may still have tillering but have differentiated. The time of transition to the vegetative stage is counted from when the rice leaf set is more upright, the leaves are “equal to the head” or when the rice begins to harden and round the base. From here, a second layer of roots develops into the soil layers below; When the rice plant blooms, it is the time when the trunk reaches its greatest height, the roots also go down to the plow layer and reach the greatest “depth”. Providing enough nutrients at this stage helps the process of making poles, favorable flowering, good and durable leaves and large flowers, many seeds. In addition to the micronutrients, rice plants need a lot of phosphorus and NK balance to differentiate flower sprouts, especially high silicon content to help harden the root, stem, and stand the leaves to increase resistance to pests and sugar accumulation. flour. NPK fertilizer specialized in fertilizing rice has many different formulas such as: NPK NPK 6:12:3 or NPK 5:12:3 , 10:10:5, 10:7:3 or multi factor rice fertilizer 1 specializing in fertilizing rice with sufficient and balanced nutrients NPK and micronutrients necessary for rice plants in the growing and flowering stage. Multi-element fertilizer (DYT) NPK Van Dien specializes in fertilizing rice crops to help achieve outstanding efficiency Cultivating seasonal rice in the northern provinces with fertilizer DYT NPK Van Dien: Manuring : Depending on the foot of the field, rice variety and the amount of organic fertilizer, balance the amount of fertilizer in the crop; average about 15-20 kg / sao. High-legged fields, less rice transplanted, less fertilizer, low-lying fields, more acidic, more rice transplanted, more fertilized, especially Bao Thai rice fields, tall sticky rice trees.. need to give priority to lining fertilizer, can fertilize 20-25kg/pole. In order for the fertilizer to be mixed evenly and sent to the soil layers below, meeting the nutritional needs of the rice growing and flowering stage; manure should be spread evenly on the field before harrowing for transplanting or before the last harrowing turn; If you are worried about dehydration or loss of manure, you can spread manure right after the harrowing is completed, when the water is still cloudy and the mud is still loose. Do not apply fertilizer after the water is clear, the mud has settled. Because when the sludge is settled, the nutrients have been attached to the soil grain and sink, in the water at this time only the substances that cause acid and alum remain, which are toxic to the rice roots. Therefore, to settle the sludge, in the water for 1-2 days, remove the clear water and then sow. Dressing: .Based on the bottom of the field, the amount of NPK multi-factor fertilizer applied as a primer and the growth situation of each rice variety that fertilizes seasonal rice as follows: – Thickly transplanted rice fields, large transplanted fields, low-lying fields… Fertilize about 8-12 kg / pole. – The fields are fertile, high, or dehydrated. High yielding rice varieties need to be fertilized about 12-15kg/sao. -The swampy fields, Bao Thai rice fields, tall sticky rice, or other easy-to-fall rice varieties… reduce the amount of fertilizer, (you can even remove fertilizer) and should only fertilize when transplanting. 7-10 days. – Particularly, the foot of the field is high and rapid, the rice variety is hard-bodied, the fertilizer is applied twice: 60-70% of the fertilizer is applied when the rice is ready to burn, and the rest of the fertilizer is applied. To reduce fertilizer loss due to evaporation, leaching or leaching, etc., fertilizer should not be applied when it is hot and when the field is full of water. Fertilizer should be applied when it is cool and the field is dry.

They have launched a product that is a pair of hands for chickens with a wide selection of designs (dolls, athletic, T-rex dinosaurs) to colors. “Chicken Arms” – the product is made to add charm to the chickens and laughter for your family. These chicken arms are files that are available on free 3D websites, users can download for their own use. However, if you don’t have a 3D printer and just want to buy a cute set of arms for your chicken, there are stores that specialize in 3D printer designs that sell these products. Let’s see more of the chickens in their new look with their hands! 21st century version of “chicken T-rex”. Looking at this biceps, I wonder who dares to win food with the chicken. Even the body shape is much stronger thanks to the hands. Another cute “T-rex chicken” with the same red arm as the crest. “Chicken T-rex” appeared everywhere! Or if you don’t like muscular arms or T-rex dinosaurs, you can come up with doll hands, how gentle it looks. The pose of the chicken comes to life with the new arm.

The authors of Ho Chi Minh City University of Technology have applied blockchain technology to build a system for issuing and managing diplomas and certificates. To issue a certificate, the training institution registers an account and logs in to the system to create embryos. After filling in the student’s information, the course, etc., the training institution can print it to issue a certificate or issue a digital certificate. Each certificate is issued with a QR code, which can be looked up and verified on the student’s information and the certificate on the mobile application. The system helps to reduce time and costs for training institutions and quickly detect cases of tampering. The glue that helps regenerate nerve cells Researchers at the University of Georgia (USA) have studied a special glue in the form of hydrogel to aid in the recovery of brain cells. The researchers implanted the hydrogel into mice with traumatic brain injury. After 20 weeks, the mouse’s cell repair process was enhanced, motor function improved. The results showed that this glue not only protects tissues from damage, but also regenerates functional neurons at the affected site. The results of the study hold promise for the medical profession to prevent cognitive decline or tissue loss in patients with traumatic brain injury. New battery development Russian scientists have developed a new type of battery that can be charged about 10 times faster than commonly used lithium-ion batteries. Tests show that the new battery can work well in emergency charging situations and in low-temperature environments. The new battery is also safer for the environment.

Nathan Copeland controls a robotic arm using electrodes implanted in his brain. Published in the journal Science, the team say their work demonstrates that adding sensation to the technology significantly improves the function of prostheses for quadriplegics, compared with based solely on visual cues. Nathan Copeland, 34, told AFP: “I am the first person in the world to have a device implanted in the sensory cortex that scientists can use to stimulate my brain directly. And then, I felt like I had a real feel in my flesh and blood hand.” In 2004, Copeland was involved in a car accident that left him with a severe spinal cord injury and quadriplegia. He volunteered for scientific research and six years ago he underwent major surgery to implant tiny electrodes in his brain. Two sets of 88 electrodes the width of a human hair are arranged like tiny combs and penetrate deep into the cortex, which controls motor function. According to Associate Professor Rob Gaunt of the Department of Physical Medicine and Rehabilitation at the University of Pittsburgh, co-leader of the study, fewer than 30 people in the world have received such a transplant. What’s unique about Copeland’s case is that an additional set of electrodes is connected to his dorsal cortex, which receives and processes sensations. The idea of ​​sending haptic feedback to the tactile sensory cortex dates back decades, but doing so in a controlled and understandable way by brain circuitry used to be a major challenge. After Copeland underwent surgery to install the electrodes, the team was truly thrilled. Then came the decisive moment, when they tried sending the first tactile signal. “It felt really fuzzy,” Copeland recalls. He asked them to try again to make sure it was real. Before the interface could work with the robotic arm, the scientists had to perform a series of tests on Copeland. First, they needed to learn which electrodes cause what sensation when activated and which fingers are associated with them in order to set up the robotic hand correctly. They also made him watch a video of the robotic arm moving left or right and recorded the electrodes lighting up when he was asked to “think” it was him controlling it. Copeland sat next to a black metal robotic arm and was asked to pick up a series of small objects such as rocks and spheres and place them in a box – when the tactile sensors were turned on or off. He can complete each task in an average of twice as fast when the sensors are activated, and can even perform more complex tasks like picking up a glass and pouring its contents into a glass. another cup. The team wanted to further refine the prosthetics because they didn’t want to just do science experiments in the lab, but wanted to actually make devices that would be useful to people. Copeland has set up his brain-computer interface at home when the Covid-19 pandemic shut down universities and has used his downtime to learn how to draw on a tablet and even play video games. death. He does this by using his mind to send signals directly to the computer, instead of using his arms to press buttons.

The software helps to record the thoughts in the brain into writing on the computer. The combination of mental effort and modern technology has allowed a motionless man (T5) to communicate by text at a speed comparable to that of healthy colleagues texting. on smartphone. Study participant (T5) almost lost all mobility below the neck because of a spinal cord injury in 2007. The scientists placed two brain-computer interface chips, each about the same size. an aspirin pill, on the left side of T5’s brain. Each chip has 100 electrodes that pick up signals from trigger neurons in the motor cortex, an area on the outermost surface of the brain that governs hand movements. Those neural signals are sent over wires to a computer, where artificial intelligence algorithms decode the signal and infer the T5’s intended hand and finger movements. Algorithms were designed in Stanford’s Neural Prosthetic Translation Lab. T5 generated text at a rate of about 18 words per minute (the average person can say about 23 words per minute on a smartphone). Even, T5 then reached a record of 40 characters per minute. The study was published online May 12, 2021 in the journal Nature. It offers hope to hundreds of thousands of Americans and millions around the globe, who have lost the ability to use their upper limbs or speak due to spinal cord injury, stroke or amyotrophic lateral sclerosis.

Recently, the team upgraded the technique to power and program the multipoint biostimulator from a single transmitter. Thanks to new research, electrical and computer engineer Kaiyuan Yang and colleagues at the George R. Brown School of Engineering (Rice University) won an award at the Society of Electrical and Electrical Engineers’ Custom Integrated Circuits Conference death (IEEE). The researchers performed experiments showing that an alternating magnetic field can be controlled by a battery-powered generator outside the body. The transmitter can be mounted on a belt or harness, powering and programming two or more implants at least 60 millimeters away. The implant can be programmed with a delay measured in microseconds. That could allow them to coordinate the activation of multiple wireless pacemakers in individual heart chambers, says engineer Yang. “Our study shows that it is possible to program the implants to stimulate in a coordinated pattern. We sync every device, like a symphony. That gives us a lot of scope in stimulant treatments, whether it’s for the heart rhythm or the spinal cord.” The scientists also experimented using small implants. Each tissue is about the size and weight of a vitamin. Experiments performed on hydra vulgaris rodents have demonstrated that, for at least a short distance, such devices can stimulate two separate hydras to contract. Then, activate a fluorescent tag to respond to electrical signals and respond at controlled amplitudes along the rodent’s sciatic nerve. “A study on spinal cord regeneration showed that multipoint stimulation in a certain pattern helps restore the nervous system. Several clinical studies are underway, but all are using desktop devices. There is no implantable tool that can do this,” said engineer Yang. Lab devices, called MagNI (for electromagnetic nerve implantation). MagNI was introduced early last year as a cordless spinal cord stimulator for power and programming. That means the wire does not need to be passed through the patient’s skin. Because, putting the wire through the skin is a method that can cause infection.

Two patients with corneal patient. Photo: BV. Information from Hue Central Hospital said that recently, under the direction of Prof. Dr. Pham Nhu Hiep – Director of Hue Central Hospital, the Hospital’s Eye Center has conducted corneal transplant surgery for 2 diseases. benevolent corneal donor in Gia Lai. Before that, when receiving information from the National Organ Transplant Coordination Center about the case of a patient from Gia Lai who wishes to donate cornea, the physician of the Eye Center and the Organ Transplant Center, Hue Central Hospital went to visit the patient. After studying the feelings and aspirations of the corneal donor, the doctors returned to the hospital to conduct examination and selected the 2 most suitable patients from the long list of patients waiting for corneal transplant. When the corneal donor took the last breath, the physician of Hue Central Hospital took cornea and performed the transplant immediately for the ready patient. The first is a 43-year-old female patient in Quang Ninh district, Quang Binh. This patient with necrotic corneal ulceration that leads to perforation without early corneal transplantation is at higher risk of intraocular infection and eye damage. Thanks to the timely corneal transplant, the patient has preserved his eyes and restored his eyesight and can see within a distance of 3m. If the postoperative treatment results are good, the patient’s vision will surely increase much. The second person to receive a corneal transplant is a 74-year-old male patient residing in Huong Thuy, Thua Thien Hue. 2 eyes with corneal scarring for many years with both eyes vision can only distinguish light and dark. After a week of surgery, the patient’s vision was partially restored, he was able to walk and see everything within a distance of 2 meters. The patient’s foresight will be well restored in the future.

However, the mutant non-phytoplankton propagated by tissue culture method is surprisingly cheap.

More than 6,000 VND a mutant orchid 5 white wings Phu Tho

Recorded in forums, groups on social networks, some people are selling mutant orchids seeding and tissue transplanting.

For example, the 5 white Phu Tho, 5 white Hien Oanh mutant orchids, on the market, sell for 1.5-4 million VND / cm, these two plants are still produced by tissue culture method, which costs 160,000. -800,000 VND / bottle, depending on the number of trees.

Mr. Hai Phan, specializing in selling mutant orchids transplanting tissue in Binh Chanh district, Ho Chi Minh City, said that his shop has all kinds of mutant non-scallop orchids such as 5 white Phu Tho wings, 5 white Hien Oanh wings, 5 wings. White Peace …

In particular, the 5 white Phu Tho and 5 white Hien Oanh wings are the most popular mutant orchids on the market with a price of 160,000 VND / bottle of 20-25 trees, which is just over 6,000 VND / tree.

All samples of the baby mutant orchid plants were grown in cold rooms. Photo: Vu Cong.

“Plants, taking care of 2 years, will flower, commit to producing the right type of 5 white petals,” he said and explained that propagation by mass transplanting method should be cheap compared to the kie market. Small quantity should be expensive.

The owner of this shop also said that he is the one who implants that mutant spread tissue. “Transplanted mutant orchid plants will produce flowers similar to kie types, but will have slight variation, which means accuracy from 90-95%”, Mr. Phan shared.

Similarly, Mr. Vu Cong (Thu Dau Mot, Binh Duong) also sells mutant orchids of various types such as: 5 white Hien Oanh wings, 5 Phu Tho white wings, 5 Minh Vu white wings, Hong beauty, Hong Yen aquatic products … with prices from 800,000 to 1.2 million VND / bottle of 25-30 trees.

In addition, he also sells seedlings with a price of 250,000 VND / bottle per 40 trees, buying over 50 bottles will have a wholesale price. “If you take care of it quickly, it takes about 6-8 months to flower, and the tissue transplant method must take 1-1.5 years,” said Cong, who is more expensive because of the high technical requirements and the probability of flowering like the mother plant is also higher. This type he has just tested for more than a year but has no results, is expected to flower later this year.

Currently, each month he provides to the market about 200-300 bottles of tissue transplant mutant spreading. “I sell to customers but do not warrant flowers for anyone because I am not sure”, added Mr. Cong.

Not only that, on e-commerce sites such as Lazada, Sendo … also sell mutant orchids sowing seeds or transplanted mutant orchids with prices from 70,000-500,000 VND, depending on type.

It is possible to mass transplant tissues to spread billions of mutants

At the Institute of Vegetable and Fruit (Ministry of Agriculture and Rural Development) is also propagating thousands of mutant non-scallop orchids by tissue culture method.

Exchange with Zing, Assoc.Prof.Dr. Dang Van Dong, Deputy Director of the Fruit and Vegetable Research Institute, confirmed that mutant non-scallop orchids can be fully propagated by tissue culture method in large numbers.

According to this PGS, today many crops including mutant orchids can be created artificially (through physical and chemical agents) and when there are “mutant orchids”. in the true sense, with genetic stability, it is completely possible to asexual propagation (by cuttings or improved tissue culture).

A complete tissue culture (in the laboratory) process takes at least 10-12 months. Photo: Hai Phan.

Cuttings are easier to do, but the propagation coefficient is slower, while cell culture (also essentially cuttings in the optimal environment and conditions) requires high technology, large initial investment, but The multiplication coefficient is high, the quality of the plant is better.

“Both of these two methods retain the genetic properties of the mother plant and after a year can multiply thousands of seedlings,” he confirmed.

In addition, this Associate Professor said that the Fruit and Vegetable Research Institute has been multiplying thousands of mutant non-scallop seedlings with kie ordered by a customer. “The price of these seedlings is just equivalent to other normal orchids”, the expert information.

“As a biologist, scientific research on flowers in general about orchids in particular, I myself do not understand why ‘mutant orchids’ are not so terrible, they can be propagated in large numbers. but it is so expensive, “he added.

Faced with the fact that many people were deceived when buying the billion, Associate Professor, Dr. Dang Van Dong recommended that before buying, selling, and exchanging consumers, they should consider, learn carefully, and ask the seller to have a guarantee contract. closely seeded to avoid any unfortunate occurrence. At the same time, the seller needs to make commitments to ensure the right varieties and quality, including guidance for the buyers on planting and care techniques for such orchids.

The two halves of these nuclear submarines cut in half were Perle and Saphir, respectively. From these two halves, the French experts performed grafting into the complete ship.

The French expert said that the reason they can be joined together by two submarines of the same line, both of the Rubis class and identical design.

The two halves of the submarine were prepared to be grafted by France.

The fact that France had to use two halves of two different submarines to combine because in June 2020, a fierce fire that lasted for 14 hours made the front of the Perle submarine on the dock unusable due to steel structure is deformed, some places do not guarantee the original stability.

But the other half of the 73m-long submarine, which displaced 2,600 tons, was unaffected by the fire. Meanwhile, the French Navy has a Saphir, in the same class, which was decommissioned in 2019 and is waiting to be dismantled.

The front part of the Saphir was assessed to be structurally stable, qualified to be paired with the back of Perle to form a complete attack submarine.

The Perle was then cut in half in February and March. After being placed on a calibrated shelf, the second half of Perle and the front half of the Saphir are now fully welded, the French Navy said.

Paired product is still named Perle but a bit longer. Naval Group said that all pre-construction designs are 3D digital modeling and ensure reliability, safety and does not affect the inherent design of the ship’s combat capabilities.

Perle entered service in 1993, the newest of the six Rubis-class nuclear submarines in the French Navy. During a joint resistance exercise in 2015 between the French and US Navy, a Rubis submarine “sank” the US aircraft carrier USS Theodore Roosevelt.

This exercise took place within 10 days off the coast of Florida, to test the performance and combat capabilities of this aircraft carrier after 4 years of overhaul at a cost of up to 2.6 billion USD.

The French submarine named SNA Saphir S602, belonging to the Rubis nuclear attack submarine class participated in exercises with the US Navy’s Carrier Task Force No. 12, including the USS Theodore Roosevelt ( CVN-71), multiple Ticonderoga-class cruisers and Arleigh Burke class Aegis destroyers and a Los Angeles-class nuclear attack submarine.

Phase 1 of the maneuvers went well when the French navy’s SNA Saphir nuclear submarine was ordered to join the allied US forces in a simulated conflict, in which the states thought The statue attacked the economic and territorial interests of the United States.

By the second phase of the exercise, the submarine SNA Saphir acted as an enemy submarine, with the mission to find and destroy the giant US aircraft carrier.

To do this, Saphir spent days stalking, bypassing the outer barrier under constant threat from P-3C Orion anti-submarine patrol aircraft and P-8A Poseidon of the US Navy, zones Arleigh Burke class destroyers and other anti-submarine defense ships.

The Saphir dodged the detection of anti-submarine forces, broke into the defense systems of the carrier group to avoid detection of long-range anti-submarine equipment and quietly approached the ship. airports worth billions of dollars of the US Navy.

The Saphir was close to the American aircraft carrier USS Theodore Roosevelt and commanded the carrier to lock the target of the carrier in his periscope. The French submarines were then only a few hundred meters from the American aircraft carrier, within the effective range of anti-ship weapons such as torpedoes and Exoxet anti-ship missiles.

Both the US aircraft carrier combat information center held its breath when it discovered the incident and was alarmed when it was attacked by French ships. An attack order was issued, and the Saphir “sunk” theoretically the USS Theodore Roosevelt and most of her escort ships.