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- [Foreigner’s SKKU life] Twin sisters Rafia and Afia
- The foreigner's SKKU life met with twin sisters Rafia and Afia, who came from Bangladesh. Older sister Rafia is in Chemical Engineering and Polymer Science and Engineering, and her sister Afia is in Biological Sciences. The two friends who have been friendly to each other throughout the interview say they are best friends. Let's hear their special story. Relationship with Korea Ten years have passed since Rafia and Afia, came to Korea after their parents at the age of six. Life in Korea is now called daily life. "We were born when my parents were taking a master's course in Japan. I grew up in Japan until the age of two, and in Bangladesh until the age of six. After that I came to Korea following my parents' research, mom and dad are always together. Dad is working as a professor at his lab with mom. Mom finished her doctorate a few years ago when he stopped raising us. Both of them have a great enthusiasm in research. We are always respectful. It's one of the main reasons why we put our efforts on our studies. " Sisters spent their school days in Korea. "We went to elementary, middle, and high school with our Korean friends instead of a foreign school. So I went to elementary school one year late. I learned Korean for a year, so it was easier to accept Korean. I remember the time I got the best grade in Korean entrance exam for the 3rd grade. After enrolling, I had the same school days as my Korean friends. I had adolescence at junior high school and I had fallen in love with my teacher at high school. I also met the teacher I respect a lot. In my senior year in high school, my homeroom teacher was the one who changed my eyes on the world. I was grateful in everyday life. Thirteen of our classmates, who were still very strong in friendship, were a big support for our high school life. " Life at Sungkyunkwan University "We always applied the same universities to go to university together. We also applied to SKKU in different majors. By the chance of following my parents participating the Australian Society in the third grade of high school., we met Sungkyunkwan University at the institute for the first time. It was the only Korean university that attended the conference. I've been interested in Sungkyunkwan University since then. I think the meeting with Sungkyunkwan University was fate. It is a well-welfare place for foreign students. I am satisfied with my school life. " Of course, they had been in adversity, too. "Until high school, we spend a lot of time with friends wearing uniforms. Many Korean friends did not classify us as foreigners. I came to university and many people recognized us as foreigners. Many of them think we cannot speak Korean. This kind of treatment as foreigners was unfamiliar. Korea's culture and emotions are part of us as long as we live in Korea. But when it is classified as a foreigner simply because of its appearance, it is bitter. " Parents' role in sister's academic interest was great. "Both of parents were in major of chemistry at the time of undergraduate and are currently working on biosensors. I was able to observe various scientific associations with my parents. I have been affected naturally at home since I was a child. " Afia said she had no regrets in her major choice. "I really like Biological Sciences. I can say that I liked it when I was born. You know, people put a lot of effort into their favorite subjects. I remember studying while I was working hard in high school. I got good score on the test of Biology. Biological Sciences is a field of learning not only for animals, plants, but also for various life forms. Every single detailed area is interesting. Next semester, I will take a class to study antigens and antibodies through rabbits. I'm really looking forward to the experiment. " Sisters also resemble academic schools. "I think both of us regard study as the first thing. That's why I do not have clubs or other activities that are difficult to work with. I think receiving good grades is a way to give back to my parents. My parents' happiness is our happiness. If we get good results after our efforts, we are proud too. The habit of self-study at night during high school was a great help. When I go to the dormitory for dinner and study, my memories come to my mind in high school. We cheer each other up when we are tired. " "I want to help foreigners staying in Korea. It's one of the reasons we study harder. I would like to serve foreign friends who go to the general school, especially those friends who can not be accommodated and become bullied. I want to help you study at school. I especially want to teach my friends Korean language so that language does not become a barrier. I would be glad if our experience would help foreign friends adjust to Korea. Parents always say, "If you want to do something, do your best right now." My current studies are a preparation for the future. " "I want to help foreigners staying in Korea. It 's one of the reasons we study harder. I would like to serve foreign friends who go to the general school, especially those friends who cannot adjust well become bullied. I want to help them study at school. I especially want to teach my them Korean language so that language does not become a barrier. I would be glad if our experience would help foreign friends adjust to Korea. Parents always say, "If you want to do something, do your best right now." My current studies are a preparation for the future. " Originally, they were good sisters, but they seemed to realize the importance of each other in college. "I am glad I came to the same university. I think it is the best choice. If we have gone to different schools, we would regret it. If I were alone, I would be lonely. It is fun to eat midnight snack. Foreigners do not have LC, but it seems like it was a chance for us to go Hongdae, Incheon, Han River etc. We went to many places together. We also took lectures of general classes such as speech and debate. When you are sick, we are the greatest strength of each other. If you are alone when you are sick, it is too sad. We ran to each other being away from everything. I realize the love of family. Being asked each of future goals, both sisters had opened up various possibilities. It was same that they have ambition to help Bangladesh, their home country. "Bangladesh has a strong sense of community. It is important to share in Muslim culture. Parents always care for Bangladesh international students. Every weekend, we gather various international students from Bangladesh to make Bangladeshi dishes. We also want to follow our parents’ way. Our family goal is to help Bangladesh. Like father who is trying to research biosensors to diagnose disease at low price. I want to play a role of connecting Korea and Bangladesh. I think there are many points to learn about welfare and education in Korea. No matter what we do, we'll experience a lot of things.
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- 작성일 2017-07-13
- 조회수 3146
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- [SKKU People Now] Mr. Jung, the “Creator”
- Recently, people expressing themselves in media such as SNS (Social Network Service) and Youtube are rapidly increasing. Through SNS, users can post opinions and information and communicate with other users. Soccer manager Ferguson said, "SNS is a waste of life." SNS is fatigued and depressed by many people to the word 'SNS fatigue syndrome'. There are still many opinions on the effects and side effects of SNS. However, if the number of creators with the same thoughts and consciousness as Jung Seon-ho is increased, the side effects of SNS will decrease. Now, I met this creator Jeong Seon-ho, the creator of the college. "Hello, I am Jung Seon-ho the person who enjoys the present. After finishing Master’s degree in Sungkyunkwan University, I am currently studying for Ph.D here conducting experiment and research until late evening, just like other students. I am doing things such as composing and shooting video to suit my goal of enjoying the moment. Sometimes when I do various things, I feel physically exhausted. Last year I only slept four hours a day. However when I do my favorite things, I feel that I am healed mentally. I am happy to do what I want to do. " ☞ Mr. Jung, the “Creator” "There is no special motivate to shoot a video. By winter 2015 my mother and I went to the Kakao Friends Pop-up Store in Yonsei-ro. Some dolls were cute enough to look alone, so I took the first video, edited it and uploaded it. Doll video alone was flat, so I inserted music without thinking. When I woke up, The video was pressed for about 230,000 times of ‘Like’. There were about 6,000 'followers'. I’ve received lots of messages saying that the dolls were too cute or the music seemed to go well. At that time, I was delighted with what I was able to achieve. It seems to be similar to the reward that comedian men feel after gag. From then on, I found the videos and started reworking them. As a result, the followers are close to 100,000. One day I changed my profile picture to new one. Then the people reacted badly. I felt a slight loss in the reaction. I was happy to like the video I made, but the original author, I was lost. After that, I started the video I was casting. As the work originally started to have fun gets bigger, I paid less attention to my parents. I tried to find ways to spent time with my mother and wondered how to build up memories. I came up with an idea of shooting with a hidden camera with my mother. Based on that idea, I began to shoot with my mother. I liked the fact that I could spend time with my mother while working on the video. The reaction was also explosive. My mom did not dislike to shoot video, but she liked it so much that her video was uploaded somewhere. My mother is both open and conservative, but she is open to this kind of things. At first, the video I shot on my mother was too funny to watch alone, so I edited. I showed it to my mother and she told me to go on the internet first. So I put it up. Sneaky ideas of cameras and images literally get from the moments of everyday life. Every time I get inspired, I make a note on a cell phone notepad and take a shot. I only upload 1/3 of the footage. I do not upload if my mother notices in the middle or the shot is not satisfying. Not all images are successful. I expected it to be really fun, but I did not upload it unless the video go through the story I wanted. There are a growing number of 1person creators and the market is expanding recently. I am proud to hear that many people want to do what I do. I feel it is a transition period now. There are many people who post videos that are offensive to others so I'm worried about that. I think if people do not watch such a video, people will not shoot it. I think the situation will get better if there is awareness of watching". ☞ Mr. Jung, the “Musician” "I want to say that I want to enjoy the present. I liked music before I shot the video. I also did DJing and mixing. After that, I started composing. As a creator, my values have changed a lot. So I wrote the first song in hopes that it was a song that conveyed a meaningful message prior to the full-scale music activity. I want to make a happy community. In order to do that, it is important for individuals to have positive thoughts, but we have to strive for a little happier community. It is important to be positive, but it is the way to a happy community to look at others more and to be interested. I did my first song as a donation to show that I could do that in the form of music. I wanted to show you that you can make something and donate value-added things even if you do not have many things. It's a song with a message that you can help someone in your music. The next album is a little more popular and I want to start full-scale musical activities with my own colored songs. " ☞ Future goal & what he wants to say "There is no future goal. I'll just enjoy the present. I will do my best when the opportunity comes. I do not want to be overwhelmed by the evaluation of others. There are too many moments to be evaluated. I hope you do not lose confidence in the evaluation of others. I would like to do my best to enjoy what is given to the present situation. I want to be a person who does what I like and goes ahead with something. "
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- 작성일 2017-07-06
- 조회수 3198
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- Development of novel gamma amino acid synthesis method using biomimetic hydrophobic hydration effect
- "Water enables an organic reaction that has never been possible" The team found a groundbreaking synthesis method for synthesizing new gamma amino acid derivatives with an all-carbon quaternary stereogenic center. Gamma amino acids are widely used in various neurological and psychiatric diseases and are typical of pregabalin having a tertiary carbon chiral center of pajusa, a global pharmaceutical company for treating epilepsy, peripheral neuropathic pain and anxiety disorders. Therefore, the synthesis of novel gamma amino acid derivatives is a field of continuous research and efforts in the pharmaceutical industry in order to reduce side effects and improve drug efficacy. However, although gamma amino acids with quaternary carbon chiral centers are expected to have better pharmacological effects, they have not been able to overcome the synthetic difficulties and have been unable to develop related new drugs. As a result of the study, new gamma amino acid derivatives are expected to be available for the development of new drugs in the therapeutic drug. According to the results of this study, hydrophobic hydration, which occurs when water is used as a reaction medium in the in vivo reaction, is precisely controlled using a hydrophobic organic catalyst. It has become possible to produce gamma amino acid derivatives having a quaternary carbon chiral center which could not be synthesized in the previous method. As a result of these studies, research on related drugs has become more active and the first steps toward the development of new drugs have been made. The results of this study were published in the February 2017 issue of 'Angewandte Chemie International Edition', a global scientific journal of chemistry, and it was named as a ‘hot paper’ in recognition of its importance. * Title: "Water-Enabled Catalytic Asymmetric Michael Reactions of Unreactive Nitroaklenes: One-Pot Synthesis of Chiral GABA-Analogs with All-Carbon Quaternary Stereogenic Centers" (1st author Shim, Jaehoon; Corresponding author: Song, Choongeui)
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- 작성일 2017-07-04
- 조회수 3064
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- [interview] Ryu Deok-hee, the chairman of Kyungdong Pharmaceutical (Chemistry 56’) (2)
- ◎ Creating a warm world of President Ryu Deok-Hee What is 'Service' for President Ryu? “As you can see from my dedication, I think that service is a guide to human health and happiness. Simply medicines cannot enrich people's lives. I think service is helping others materially and mentally. It is the first step of service to be willing to spend my time for others. Would not it be a service to be interested in others' happiness and try to nurture or protect that happiness?” Life to practice sharing He is known to donate large sums of money to social welfare facilities and his alma mater. But he says that his actions are 'sharing' rather than 'donation'. He practices sharing in the charity community of love and the fool sharing foundation among social welfare facilities. Social welfare facilities include facilities for people with disabilities and facilities for single mothers. In order for disabled people to be treated and living in a better environment, President Ryu gives his property to social welfare facilities so that unmarried mothers can become independent. In addition, he helped build preschool and mental retardation treatment centers. The Center for Mentally Retarded Healers named 'Solsaem our Center' as the 'Solsaem' of President Ryu Deok-Hee’s pen name. People with disabilities in this center receive a monthly salary compared to the amount of money they make and sell. President Ryu purchases cookies made by people with disabilities and helps them economically. He also distributes medicines manufactured by Kyungdong Pharma at facilities where the elderly are living. "I cannot make a society, but I can make society a better and warmer place. I am practicing sharing to make a better world. I believe that a better world will come by increasing the number of people who share my own thoughts and behaviors." In addition to his social facilities, he also shared Sungkyunkwan University Development Fund, Global Center Building Fund, Songcheon Medical Research Fund, Songcheon Foundation Scholarship Fund, Department Development Fund. As for this amount, he says: “As proceeding, I split so much money. When I was in school, I was able to study with a scholarship and subsidy. I am glad that I helped the school that helped me again and that it was spent to help my juniors study in a better environment.” “Our school has made me now. This is because studying chemistry at Sungkyunkwan University is the cornerstone of Kyungdong Pharma. Isn’t our school developing more and more? I am proud to see Sungkyunkwan University now rank higher in the world university rankings these days. I was able to give the same amount of money to my alma mater because my alma mater brought me up. "In addition to my alma mater and social welfare facilities, President Ryu does not spare any help to his employees. Indeed, two of the company's executives each died of liver cancer in 1985 and a heart attack in 1988. Ryu did not only role of chief mourner of the two, but also continued to pay the families' salaries and subsidized their tuition. "In fact, there was a lot of objection to helping both of them. However, the company has a concept of 'us'. I thought it was natural because they were our members before employees. What's even better is that my company's employees have deepened their affection for the company, as I see my constant interest in employees. I think this made the company a little more sticky and affectionate. “ Love of President Ryu Deok-Hee's alma mater He also served as general director of our school. From 2006 to 2008, and from 2010 to 2016, he was the chairman of the general meeting. Kyungdong Pharmaceutical and General Diversity Chairman, as well as a fund to build a global center. The Global Center is currently being used as the Sungkyunkwan University general meeting building. In order to build this building, he earned 12.3 billion won from our school alumni. "I feel bad when I see old building because the building is not so good, but it is nice to see a nice building now. I feel very good because I think that our school alumni have provided me with a meeting place in the future. I think that the establishment of this building is also meaningful for showing Sungkyunkwan University as one. " One word for juniors "Above all, I want you to find something you want to do. Work in a job that can reflect your values and what you like and what you can do well. I also want you to do anything hard. It never betray sweat and effort. Spend your youth in a better picture of yourself. I believe that you will be a talented person to shine Sungkyunkwan University. Thank you."
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- 작성일 2017-06-27
- 조회수 3001
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- Increase of electrochemical catalytic efficiency using phase transition of transition metal oxide film
- Increasing demand for energy and increasing demand for alternative energy, development of the technology is essential. The electrochemical catalytic reaction is the basic operation of the fuel cell, the hydrogen charging device and the storage device. In electrochemical energy evaluation, reaction at cathode in electrolysis is called Oxygen Evolution Reaction (OER). Careful research is needed for an electrochemical reaction since the process of generating anions in the reaction decides efficiency of an overall reaction. Compared to most of the previous studies which have focused on improving the efficiency of nanostructures that are not well defined by the lattice, the team have synthesized high-quality single crystal materials with well-ordered crystal structures to identify the underlying physicochemical mechanisms of electrochemical catalysis. Furthermore, by introducing atomic defect control method of Pulsed Laser Epitaxy (PLE), other parameters were minimized, and the change of electrochemical catalyst efficiency by lattice and electronic structural phase transition in the same material was confirmed. (SrRuO3) thin films with perovskite structure were fabricated as high - quality thin films with controlled element defects, and the crystal structure changes due to defects in single thin films were observed. This change in the symmetry of the crystal structure inevitably leads to a change in the electronic structure around the Fermi energy. Such a change in the electronic structure causes a great influence on the electron exchange through adsorption and desorption of oxygen or OH molecules occurring during electrochemical catalysis. In particular, when the symmetry of the lattice structure was changed from orthorhombic to tetragonal, it was confirmed that the energy required for the oxygen generation reaction was reduced by 30% or more. It was confirmed that this is caused by covalent bonding of ruthenium and oxygen in the tetragonal structure or decrease of hybridization of the total population. The analytical method used in this study will be applicable to other semiconductor materials with layered structure, and it is expected that the time for realizing high performance new material semiconductors will be accelerated. Through this study, it was confirmed that strong interactions of perovskite oxide, which exhibits a variety of useful physical properties, are essential for energy related research such as oxygen generation reaction. It is also a step closer to understanding the underlying mechanisms of electrochemical catalysis by studying the microscopic lattice structures or electronic structures that are relatively insufficient in energy research. This study was published in the April issue of Journal Energy & Environmental Science (IF = 25.427, JCR 0.44%).
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- 작성일 2017-06-19
- 조회수 2975
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- College of Science Achievement Scholarship awarding ceremony was held
- College of Science Achievement Scholarship awarding ceremony of 2017 spring Semester was held on April 14 (Friday) in Dean’s office of College of Science. Achievement scholarship recipients are student council members of the College of Science- president(1), vice-president(1) and executives(3). Recipients also include presidents(4) of student councils of the 4 department- Biological Science, Mathematics, Physics and Chemistry). Dean of the College of Science, in this ceremony has awarded scholarships to student council members of the College of Science and each department head professors has awarded scholarships to presidents of student councils of the 4 departments. The term of duty as student council’s members is 1 academic year, so they are expected to wrap up the activities in November this year.
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- 작성일 2017-06-16
- 조회수 3107
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- Biomimetic organic catalyst system development
- "Succeeded in converting toxic substances into high-value drugs using artificial enzymes." The team has developed a new biomimetic catalyst system with the motif of the metabolic pathway in vivo. A variety of glyoxal (alpha-oxoaldehyde) compounds, such as methylglyoxal, which is highly cytotoxic during various metabolic reactions occurring in the human body, are produced as byproducts, which are converted to an alpha-hydroxy acid such as harmless lactic acid by Glyoxalase I and II enzymes. The lab has focused on the asymmetric isomerization of hemisioacetal (produced by glyoxal and glutathione) promoted by the Glyoxalase enzyme. Getting an idea from it, the team has developed a novel biomimetic organic catalyst system with high yield and high optical selectivity that can produce chiral a-hydroxythioester compound (which are considered to be key materials for the synthesis of natural products) from the toxic glyoxal compounds. And chiral α-hydroxythioesters, which are used in various medicinal activities such as anticancer activity and antipyretic effect, and α-hydroxyamides, which have a therapeutic effect on Alzheimer's disease, have also been proved to be commercially useful for a novel artificial enzyme system. In addition, since the activity of glyoxalase is decreased due to aging and various oxidative stresses, it is possible to accumulate glyoxal, which is toxic to the body, and cause various diseases. Therefore, the development of artificial glyoxalase enzyme may provide a new starting point of drug discovery research. The findings are published in the April 2017 issue of Nature Communications, a world-renowned science journal. We are also announcing groundbreaking research results on related organic catalysts in almost every year (2012, 2013, 2015) in the 'Science' and 'Nature Communications' editions. * Title: "Biomimetic Catalytic Transformation of Toxic α-Oxoaldehydes to High-Value Chiral α-Hydroxythioesters using Artificial Glyoxalase I" (1st author Park, Sangyeon, 2nd author Hwang, Insoo Hwang, 3rd author Lee, Hyeonjoo; Corresponding author: Song, Choongeui)3 The source from: http://www.skku.edu/new_home/etc/research/research40.html
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- 작성일 2017-06-09
- 조회수 3179
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- [interview] Ryu Deok-hee, the chairman of Kyungdong Pharmaceutical (Chemistry 56’) (1)
- Making a Warm World by Sharing In March of this year, most students will be amazed at the new café and the renovated restaurant menu. Looking at the ever-changing enrichment of schools, we might have wondered who supports our school life. The change of the school begins with donations from seniors of Sungkyunkwan University. Many graduates are striving for the development of school and the more abundant life of their juniors. Among them, I met Ryu Deok-hee, the chairman of Kyungdong Pharmaceutical (Chemistry 56’), who contributed about 9 billion of the school development fund, the global center establishment fund, and the department development fund to the school. The footsteps of President Ryu Deok-Hee Ryu Duk Hee was born on May 20, 1938, in Hwaseong, Gyeonggi Province. In high school he was a very intelligent curious student. During his high school year as a second grader, he studied chemistry hard to tease ignorance of his teacher. As a result, he took the first place in the chemical test. Since then, his interest in chemistry has grown. Having been interested in chemistry, he eventually entered the chemistry department of our school in 1956. He was the son of a poor family of seven brothers and sisters. When the financial situation was not really good with his family, he worked for a company called Seoul Electric during the leave of absence period to earn his tuition. He worked hard on the campus, but he served as student president during the second semester of the third grade. As student chairperson, he participated in the 4.19 democratization movement. After graduating from university in 1961, he started his business in 1975 and founded Kyungdong Pharmaceutical. ◎ The companion of President Ryu Deok-Hee, the director of Kyungdong Pharmaceutical Pathway of Kyungdong Pharmaceutical Kyungdong Pharmaceutical is a pharmaceutical manufacturer. It started in September 1975 as the name of Yu-il Sangsa and changed its name to Kyungdong Pharmaceutical in 1976. At the beginning of Kyungdong Pharmaceutical, it manufactured and sold gastric medicines and vitamins that less burden on them unlike aspirin. Furthermore, in the 1980s, he led localization of imported medicines and developed drug raw materials under the leadership of President Ryu Deok-Hee. At this time, he applied for a patent on the raw material of the developed drug and earned a profit. Drugs currently produced include digestive tract solvents, antibiotics, antimicrobial agents, antivirals, and various other medicines. Since the 1990s, the company have entered overseas markets and now export raw pharmaceuticals and finished products to Southeast Asia and Latin America. In 1985, 1995 and 1998, Kyungdong Pharmaceutical was selected as a promising SME and it was selected as a good SME in 1999. Since then, Kyungdong have been spurring exports, winning the "Million Dollar Export Tower" in 2001, "The Tower of Exports of 3 Million Dollars" in 2007, and the "Tower of Exports of 10 Million Dollars" in 2013. President Ryu revealed that he hoped to further increase exports through international standardization work. Looking at KyungDong Pharmaceutical Kyungdong Pharma's name is based on the fact that it started in the east of Seoul. In spite of this, President Ryu said, "Kyungdong Pharmacy" is soft and comfortable and the name is quite good. Kyungdong Pharma's motto is 'to be a guide to the health and happiness of mankind by creating truthfully and diligently, developing and serving the heart.' This is all the value that President Ryu emphasizes. President Ryu said that Kyung-dong Pharm was able to succeed because of "the staff's ball" and "the self-reliance"."The reason our company could be so big is thanks to the employees. Everyone has done their job diligently and tried to make better medicines. I would like to give my employees a chance to succeed in our company who have believed and followed me. I would like to add that the reason for my success is that I did not fill my self-interest. (Laughs) I was embarrassed to speak with my mouth, but I tried to provide people with better medicines cheaper than the company's profits. Could it be that Kyungdong Pharma could come to this position because people knew that? "However, Kyungdong Pharma was not always successful. When President Ryu first borrowed money from the banks when he founded the company, economic burden was huge. The collateral was held in the bank and the company was not able to make big sales when it was founded. It is not too much to say that economic difficulties had been solved by the insight of President Ryu Deok-Hee of Kyungdong Pharma has found that as the life span of people increases, diseases in the cardiovascular and urological systems increase. Also, most Koreans have found that there are problems with the gastrointestinal tract. Based on these insights, he focused on the circulatory and digestive systems. In addition, as Korea is economically stable, it has also developed a dermatologic line of medicine considering that people care about cosmetics. Reading the demands of the times and developing appropriate medicine for them helped Kyungdong Pharma out of the initial economic difficulties.
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- 작성일 2017-05-25
- 조회수 3196
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- [Window of science] artificial intelligence is also 'intelligence together'
- [Window of science] artificial intelligence is also 'intelligence together' Kim Beomjun Professor, Dept. of Physics, Sungkyunkwan University There is much more to it than what you know, through what process a person's thinking takes place. However, it can be said that the neurons are gathered in the brain safely wrapped with a rigid skull and the information is processed through electrical signals by connecting them together. One nerve cell normally keeps the voltage inside it lower than outside. Then, when the sum of the currents flowing from other neurons is larger than a certain value, the voltage of the neuron is rapidly increased and then reduced to a negative value, as if the arrow fires rapidly. It is the 'fire' phenomenon of neurons. As stronger as they are aiming at the target by pulling tightly before the shot, the nerve cells use a large amount of energy to maintain a low voltage before ignition. In other words, our brain is an inefficient body organ that uses a lot of energy even when it is not processing information. Ignited neurons transmit electrical signals to other neurons through long branches. There is a structure called 'synapse' between two neurons, which is known to store information in this area. The bigger way the nerve cell works is actually simple. The information sent by the other neurons is added to reflect the weights given to each synapse, and the total amount is then calculated to determine whether or not to ignite. An electrical signal that is ignited is output to other neurons and then input to the next neuron. In this way, it is not much different from simple electric device operation. It is a reason why we cannot comprehend the wonderful intelligence of a person to a single nerve cell. Although each operation is simple, the 'connection' of many neurons makes intelligence. A person's intelligence is also 'intelligence together’. The contributions of physicists have been great in the development of artificial intelligence. In the artificial neural network of Hopfield, we simply describe the state in which the neuron is in a state of being ignited by +1 and the state when it is in a resting state quietly. It is similar to the spin of an electron with only two values: up and down. I have also made an artificial intelligence program that recognizes Hangeul characters. It was not new from the beginning. In physics research, we have already modified some of the programs we have already created and changed them into character recognition programs. It is interesting that physics’ finding of the energy floor of the spin system and recognizing the Korean alphabet using an artificial neural network are the same problem. Deep-learning artificial neural networks nowadays are the same. One nerve cell is very simple to implement like the spin of physics, but like a real person's brain, it is a complex artificial neural network that collects a lot of these things. It builds neural networks into layers and learns the network as a person learns, realizing astonishing artificial intelligence like Alpha Go. Just as information learned by humans is ultimately imprinted on synapses that connect neurons in the brain, the learning of Go followed by a method of adjusting the weights of interconnects connecting artificial neurons. I am more wondering of the accomplishments and accomplishments of the accumulated scientists who have learned from the working principle of the human brain than by the skill of the Go of the Alpha Go, and have made this remarkable artificial intelligence. Artificial intelligence is also the result of man's learning from a man. However, scientists do not even know how the latest artificial intelligence created by humans works. As for the intellect of man, there are only a few fragmented clues at present, and no one still knows what process is recorded in information and rises to the surface of consciousness again. We learn something new every day, but we have not yet learned what it is to learn how to learn. Source: http://news.chosun.com/site/data/html_dir/2017/04/04/2017040403568.html
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- 작성일 2017-05-11
- 조회수 3235
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- Professor of Chemistry and Professor Song Choongeui, using artificial enzymes to convert toxic substances into high-valu
- Sungkyunkwan University said that the team of Professor Song Choong-ui of the Department of Chemistry has developed a new biomimetic catalyst system with the motif of the metabolism process in vivo. Among various metabolic reactions occurring in the human body, various glyoxal (alpha-oxoaldehyde) compounds, such as methylglyoxal, which is highly cytotoxic, are converted into lactic acid which is harmless to the human body by detoxification of Glyoxalase I and II enzymes. The team of Sungkyunkwan University School of Medicine and Professor Song Choongeui focused on the asymmetric isomerization of hemicythioacetal (produced by glyoxal and glutathione) catalyzed by Glyoxalase I enzyme, and hinted at the toxic glyoxal compound. They developed a novel biomimetic organic catalyst system capable of producing chiral α-hydroxythioester compounds with high yield and high optical selectivity, which are considered to be key materials for the synthesis of pharmaceuticals and natural. Professor Song successfully used chiral α-hydroxythioesters and α-hydroxyamides, which have a variety of medicinal activities, such as chiral drugs, chiral drugs, thereby demonstrated the commercial utility of the new artificial enzyme system. "It is a biomimetic technology mimicking the natural detoxification enzyme reaction and has originality of research in that it has not only been used as a core raw material for pharmaceuticals but also has developed a new technology capable of synthesizing chiral compounds having various pharmaceutical activities. "This is the first biomimetic catalytic reaction available for industrial applications and is expected to provide a new paradigm for future academic and industry research." In particular, Professor Song said, "The activity of glyoxal degrading enzymes is reduced by aging and various oxidative stresses, which causes accumulation of toxic glyoxal in the body, resulting in various diseases. Therefore, he said that the development of artificial glyoxal degrading enzyme will provide a new starting point for research. Professor Song Choongeui's team is announcing the groundbreaking results of related organic catalysts in Science and Nature Communications almost every year (2012, 2013, 2015). “Biomimetic Catalytic Transformation of Toxic α-Oxoaldehydes to High-Value Chiral α-Hydroxythioesters using Artificial Glyoxalase I” (1st author Park, Sangyeon, 2nd author, Hwang Insoo, 3rd author, Lee Hyeonjoo, Contact author Song Choongeui)
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- 작성일 2017-05-08
- 조회수 3368