Introduction to Medical Imaging AI Medical imaging encompasses various imaging modalities such as X-ray, computed tomography (CT), magnetic resonance imaging (MRI), ultrasound, and positron emission tomography (PET). They behave as a window to investigate various characteristics of the human body. These imaging techniques enable clinical experts to observe internal organs, tissues, and physiological processes, aiding in the detection and diagnosis of diseases and injuries and further intervene to cure and prevent the disease. My research includes but is not limited to, developing Artificial In

Nowadays, a lot of movies are newly released, and plenty of movies are easy to find in everyday life. We now watch movies not only in theaters but in our homes with our mobile devices. However, are we fully watching the movies? A single movie contains much more information than one could imagine, and some of them go unnoticed throughout the movie. I understood this during my summer sessions. For my summer session, I took a class called “Understanding of the Film.” In this lecture we learned about the basics of movies and films, how they developed into the movies we know today, and what skills

Am I eccentric? Or, is there someone else like me too? Gruesome curiosity – that is a new word I learned recently. Of course, I have always had a quality of gruesome curiosity in me; I think we all humans do to a certain degree. But learning to put a name to it felt almost like a revelation because I can now explain many of my behaviors by ascribing to it. Like, for example, when I witnessed a young couple violently arguing on the street one evening, I could not help but find myself eavesdropping on their feud as I walked past them. Or, when I witness a traffic accident, part of me is repelled

Son Heung-min's Bending Shot. Even if you are not a big fan of soccer, you are likely to have heard about Son Heung-min, who won the Premier League Golden Boot award in the 2022/23 season. His bending shot is a masterpiece. At first glance, it may seem like the ball is going wide of the goalpost, but it exquisitely curves past the goalkeeper's hands and into the corner of the goalpost. The pressure differential in the air around a spinning ball and the resulting forces can be controlled by the direction and speed of the ball's spin, allowing for its curved trajectory in the air. In

After a challenging semester, you might feel proud and relieved, yet empty simultaneously. At that time, it is essential to find something to do with passion rather than just staying at home during the vacation. The Korean National University of Arts (K-Arts)’s summer session brought me out of the lethargy of repose. The reason why I chose K-Arts among other universities was to gain knowledge in art, which I always desired when studying natural sciences. Also, I wanted to see others who work hard to be an artist, which was my dream during elementary school but has now subsided. K-Arts covers a

There is a TV series named The Good Place that I enjoyed a few years back. In the show, the characters claim that the world became too complicated to judge whether a person is good or bad. You might buy a cup of coffee, but it might turn out to be a product of child labor, or by sending e-mails, you might be contributing to the acceleration of global warming without being aware of it. This idea left a strong impression on me, and I think it is not limited to only the good or bad of a person. Discrimination. This is a concept that has been a hot potato in our society for some time. We learn tha

To Juniper and Asher: May you know that your Grandpa tried. As a young boy, I grew up amongst the Amish culture of northern Indiana during the 1970s and early 80s. This simple country setting provided a panoramic view of large red barns and white two-story wooden houses surrounded by green fields of hay and corn. Dairy cows and large draft horses grazed out in open pastures, and Amish buggies drawn by Quarter horses traveled down long country roads of the Hoosier farmland. The pastoral backdrop of my boyhood would provide me the small-scale lessons of stewardship needed for living in a complex

Ever since the impressive debut of ChatGPT, numerous English teachers have expressed concerns that their jobs have become increasingly challenging, as students may simply rely on the AI system to generate text or use AI-powered translators to convert their Korean writing into English. As a result, teachers may find it difficult to manage writing classes effectively and to evaluate students’ writing skills accurately. While it is true that advanced AI systems like ChatGPT can generate impressive pieces of writing, it is important to remember that they are not a replacement for human creativity

The sun shone down on the open field of vibrant green covering the main quad, filled with the songs of birds, the soft scuttles of squirrels, and the amiable chatting of students. Rays of sunshine, occasionally veiled by wispy clouds, accompanied a gentle breeze. All seemed perfect. When was the last time I had simply enjoyed the sun? Had I even tried something similar before? After a decade of studiously hitting the books, the prospect of simply laying down and relaxing in between classes was too alien to me. Yet here, on the other side of the globe from home, it was the norm. Along the perip

At the start of a new job, enthusiasm and excitement abound. Possibilities seem endless, and the world brims with opportunities. However, as time passes and the job fails to meet expectations or receives a cold market response, that initial enthusiasm tends to fade. The allure of novelty dissipates, leaving a sense of disillusionment. Many individuals lose their drive at this crucial juncture, abandoning their pursuits in search of greener pastures. But what if this decline in enthusiasm is not a sign to quit but an opportunity for transformation? Enthusiasm, though fleeting, can ignite action

About my Research My research area is cognitive psychology. It examines how we think and process information, from receiving it to interpreting it and acting upon it. My area of interest is how people can focus on important information that aligns with their goals while ignoring irrelevant ones everywhere. This ability is especially critical given the overwhelming volume of information in our daily lives. Imagine you chat with a friend in a noisy place, you might need to concentrate on your friend while disregarding the background noise. You could have a conversation with your friend if the no

Learning a new skill can be both challenging and rewarding. For me, learning to play the guitar was a journey that started in 2020. Inspired by my friends in a school band and the legendary guitarist Slash from Guns n' Roses, I embarked on a journey to learn the guitar with no formal lessons. It was tough at first, but with advice from my friends, I gradually learned the basic strumming skills. However, I soon realized that I wanted to do more than just strumming. I wanted to play solos like Slash. It was a challenging goal, and I almost gave up several times. No matter how much I tried, I

For those who have been following my opinion piece over the past couple of years will know of my slight dissatisfaction with my current mode of life. I feel as though I am not doing justice to my youth by spending it in lecture halls every day frantically jotting down notes as if the words might run away. Meanwhile, there is nothing I am doing to prevent my youth from running away. There is so much in the world to see, to experience, and to live. There are so many emotions to feel, and so many lives that could have been but did not. I have always wanted to be a writer, but I guess I found my p

Once in class, I asked a Postechian how much money it would take before he would allow someone to put a tattoo on his body. He was a person who did not currently have any tattoos and did not plan on getting one in the future. He said that he would only consider it for 100 million KRW, and other Postechians nodded in agreement. The conversation highlighted the reluctance of individuals to allow an indelible mark on their bodies against their wishes. Indeed, even a simple line drawn on one's back could be difficult to accept, as it would still be a permanent and unwanted alteration to one

Have you ever wondered if you are a follower or a pioneer in your lifestyle? Followers are people who tend to go along with the crowd. They are comfortable following the traditions and norms of their culture or society. They may be risk-averse and prefer to stick with what is known and familiar rather than trying something new. They often adopt lifestyles that are common or popular. Pioneers, on the other hand, are more likely to explore new lifestyle choices. They are curious and adventurous, and they enjoy trying new things. They may be more open to different ideas and perspectives, and they

I lived a very lazy life during summer vacation. I always played until past 4 A.M. and fell asleep and didn’t wake up until 2 P.M. During those three months, there were many goals to achieve, such as taking an English test, studying foreign languages, and getting a driver’s license, but nothing was achieved, and the second semester began. As winter vacation came back, I reflected on my life in the previous summer vacation. Unlike when I couldn’t achieve anything, I decided to wake up early and start the day and make time to do what I wanted to do. However, trying to get up early from the begin

Introducing My Research I am majoring in financial economics. It studies how a financial deal is made, and how the specificity of financial trades, where general goods and services are distinguished, affects the efficiency of resource allocation. The most important function of financial markets is to promote the efficient allocation of funds and the attainment of added value by connecting creditors and debtors. I study policy designs that minimize the side effects of policy while preventing the financial crises that can occur due to uncertainties, so-called "information asymmetry," in which cr

Nowadays, being young in 2022, the public conversation around artificial intelligence (AI) was rekindled with the introduction of ChatGPT, an AI chatbot developed by OpenAI. While natural language models are not a recent invention, the capabilities of ChatGPT surprised many. Notably, ChatGPT has passed US medical, law, and business school exams without any additional training; in The New York Times article conducting a “Turing test” of the AI, not even experts could distinguish between an AI-generated writing or a genuine human’s work with absolute certainty. But I am not writing this article

The 2022 Undergraduate Group Research Program (UGRP) was held From April 26, 2022, to Feb. 3, 2023. A team of three undergraduates or more study and research the fields they like for a year and have a chance to win an award. There are teams that develop an application or platform, teams that research AI models or blockchain, teams that make robots based on engineering skills, teams that do experiments regarding fundamental science, and teams that converge these fields. There are no limits. All POSTECH members including professors and graduates help undergraduates with their research. Undergrad

There is something undignifying about living in an apartment complex. I say this not to offend those who live in an apartment which, if looking around is not obvious enough, is a significant proportion of the Korean population including myself but purely out of my subjective impression from the experience of living in one. I feel as though I have become a cog in a machine, an ant living in a toy ant house, a caged chicken in a factory farm, an insignificant being in the grand scheme of the universe. This is not totally untrue, but being reminded of this fact every time I press the button from