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810 articles found
Chemistry
Chemical bonds form through the interaction of atoms and electrons and determine the properties of matter. Explore the basic principles of chemical bonding and how ionic, covalent,
Business administration
This time, I would like to prepare material on the product life cycle, which describes a product's life from its launch through growth and decline. Understanding it can help busine
Statistics
What the null and alternative hypotheses are, how to set them up for hypothesis testing, how significance level and statistical power shape the results, and three worked examples f
Physics
The universe we live in is filled with countless forms of matter. The desk in front of us, the air we breathe, and even we ourselves all have mass. But one of the most fundamental
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
Robotics
Unimate, installed at a General Motors plant in New Jersey in 1961, is regarded as the world’s first industrial robot. Learn how it grew from George Devol’s patent, how its hydraul
Social welfare
Two people with the same income can lead very different lives. This article explains the capability approach of Amartya Sen and Martha Nussbaum, from functionings and capabilities
Information technology
Programming (coding) is a language used to give instructions to a computer, and it requires following specific syntax. To this end, this material will cover various syntax elements
Information technology
A deadlock is a state in which several programs each wait for a resource the other holds, so none of them can move forward. This article covers how deadlocks arise, the four Coffma
Tourism studies
Dark tourism (known in Korean as travel to learn lessons from history) is a form of travel that explores human curiosity and the desire to understand historical and social events.
Robotics
Asimov’s Three Laws of Robotics are a set of prioritized rules: a robot must not harm humans, must obey human orders, and must protect itself. We look at how the laws were born, wh
Library & information science
In this article, we aim to present information on the criteria and priorities for selecting library materials. Libraries select and purchase a variety of book and non-book material
