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810 articles found
Economics
Gross domestic product (GDP) is one of the most important indicators in modern economics, used to measure the size and growth of a country's economy. By capturing the sum of a coun
Library & information science
A handy reference to the Korean Decimal Classification (KDC, 6th edition) used in Korean public and school libraries: how main classes, divisions, sections, and subdivisions work,
Psychology
A “list price” makes a sale price feel cheap, and an opening offer steers a whole negotiation—because the first number we see becomes our benchmark. This article explains the ancho
Food & nutrition
The Atwater general factor system estimates a food’s energy by multiplying each nutrient by a fixed value, such as 4kcal per gram for carbohydrate and protein and 9kcal per gram fo
Education
Learning theories are an important element that forms the foundation of education as a field of study, aiming to explain human learning processes and thereby propose effective teac
Psychology
Self-efficacy is the belief that an individual can achieve a goal in a particular situation, and it has an important influence on the individual's behavior, emotions, and overall q
Film & media
An anamorphic lens squeezes a wide scene only horizontally onto film or a sensor, then stretches it back by the same ratio to create a widescreen image. This article covers how it
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
Tourism studies
Film-induced tourism is travel to the filming locations of movies and dramas, or to studios and theme parks based on screen works. This article covers why it happens, famous exampl
Information technology
Frameworks provide standardized structures and methods for software development, helping developers build applications more efficiently and consistently. These tools are often clos
Chemistry
Why does water sometimes stay liquid below freezing? This article explains what supercooling is and how it works, everyday examples such as clouds, freezing rain, and hand warmers,
Tourism studies
Tourism is an activity in which individuals or groups visit other regions or countries for various purposes, such as relaxation, exploration, and education. These activities are la
