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773 articles found
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
Logistics
When we order something from an online store, it arrives at our doorstep with a shipping label attached. This label contains all the information needed for delivery, including the
Statistics
After a standout exam or a praised flight, the next result often looks weaker—and after a flop, stronger. Much of that swing is regression toward the mean, not praise or blame. Thi
Economics
The basic concepts of supply and demand, how market equilibrium and the equilibrium price form, how price changes affect quantity demanded and supplied, what shifts the demand and
Psychology
Rapid technological advances and dramatic social changes in modern society are presenting many people with new challenges and considerable stress. These changes affect not only wor
Film & media
In cinematography, lighting is one of the core elements, playing an important role in determining the quality and atmosphere of the imagery. Lighting can convey emotions and storie
Earth science
Air pressure shapes our weather and is something we feel in everyday life. This article covers the basic concept of air pressure, the role and importance of atmospheric pressure, t
Logistics
Third-party logistics (3PL) means entrusting part or all of a company's logistics to an unaffiliated outside specialist under a long-term contract. This article covers what 3PL mea
Library & information science
Why do a handful of words appear on every page while most words show up only once or twice? This article covers how Zipf's Law became known, the inverse relationship between rank a
Library & information science
Why do a small number of researchers write so many papers? This article covers the inverse square law Lotka identified in 1926, its uses in bibliometrics, and its limits, such as e
Psychology
Have you ever felt that everyone notices only your mistakes? This article explains what the spotlight effect is, the T-shirt experiment, why the illusion arises, everyday examples,
Journalism & communication
Why do we pick the media we do? Uses and Gratifications Theory, systematized in the 1970s by Elihu Katz, Jay Blumler, and others, sees people not as passive receivers of messages b
