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777 articles found
Logistics
Why does steady consumer demand turn into wild swings in orders further up the supply chain? This article explains how the bullwhip effect works, its four main causes, the Beer Gam
Social welfare
Providing fair opportunities and benefits to everyone is a very important task in modern society. In particular, people with disabilities face various difficulties in daily life an
Physics
Cherenkov radiation is the cone of light given off when a charged particle moves through a material such as water or glass faster than light travels in that material. Learn how it
Psychology
Have you ever heard things like "Aren't you being too sensitive?", "I'm saying all this for your own good, so why are you acting like that?", or "When did I ever do that? You must
General knowledge
This time, I would like to cover the basics of writing a personal statement that you need when applying to a school, company, or similar institution. A personal statement (self-int
Library & information science
This time, I would like to write about MARC, which is used in libraries. MARC and cataloging cover such an extensive range of material that I plan to divide the discussion into sev
Statistics
Simpson's paradox is the phenomenon in which a relationship seen within separate groups weakens or even reverses when the groups are combined. This article covers its definition, w
General knowledge
Cunningham’s Law is the internet adage that the best way to get the right answer online is not to ask a question but to post a wrong answer. This article covers where the law came
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
Chemistry
Analytical chemistry is a branch of chemistry that scientifically analyzes the composition, structure, and chemical properties of substances. This discipline plays a very important
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
Film & media
Bullet time is a visual effect in which time seems to slow down or stop while the camera keeps moving around the scene at normal speed. This article explains how it differs from sl
