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809 articles found
Business administration
Porter's Five Forces is a framework for judging how profitable an industry is by looking at five pressures around a company. This article covers why it emerged, what the five force
Education
Educational evaluation plays an essential role in the education system and is an important means of assessing learners' achievement and improving the quality of education. Through
Physics
Black holes are among the most mysterious objects in the universe. This article looks at how they form, from dying massive stars to the first stars after the Big Bang, traces the h
Logistics
In modern society, logistics is like the vast bloodstream that keeps cities and nations moving. Millions of parcel boxes move every day, container ships come and go around the worl
Robotics
How do robot arms and drones stop right at their target? This article covers the history of PID control starting with Minorsky, the roles of the proportional, integral and derivati
Statistics
Significance plays an important role in data analysis and the interpretation of results, and it is a concept that directly affects the reliability and validity of research. This ar
Psychology
The Myers-Briggs Type Indicator (MBTI) is one of the most widely used personality tools in psychology. This guide covers MBTI concepts, the four preference dimensions, all 16 types
Economics
Why can good products disappear from a market where buyers cannot judge quality? This article covers Akerlof's 1970 paper, how adverse selection drives good goods out, examples bey
General knowledge
Godwin’s Law is the internet adage that the longer an online discussion grows, the closer the probability of someone comparing others to Nazis or Hitler gets to 1. This article cov
Social welfare
What community welfare is, why it matters, its three types (preventive, supportive, and developmental), and five examples of community welfare services from regions across Korea.
Physics
Relativity is a groundbreaking theory that fundamentally changed the paradigm of physics. Proposed by Albert Einstein, it challenged traditional concepts of time and space. Relativ
Chemistry
Chemiluminescence is the phenomenon in which energy released by a chemical reaction comes out as light instead of heat. This piece covers how excited molecules produce this ‘cold l
