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810 articles found
Social welfare
The settlement house movement sent educated young people to live in poor neighborhoods alongside residents, combining education, everyday support, and social reform. We look at how
Chemistry
Chemical catalysts are essential substances for accelerating chemical reactions or optimizing reaction conditions. Catalysts can maximize reaction efficiency without being consumed
Logistics
Why do warehouses hold more inventory than they expect to sell? This article explains what safety stock is and how it relates to the reorder point, how to calculate it from the ser
Psychology
This time, I would like to put together some material on the concept of memory as an element of psychology. Understanding the content of this material may help with studying and le
Social welfare
The strengths perspective is a social work approach that places the talents, resources, and hopes of people, families, and communities at the center of helping. We look at its orig
Economics
There is growing attention to the effects of interest rate hikes on the South Korean economy. A central bank's decision to raise interest rates can bring significant changes for co
Statistics
If a coin lands heads five times in a row, will the next toss be tails? This article explains the gambler's fallacy, the belief that past results change what comes next, along with
Information technology
The Two Generals’ Problem is a thought experiment showing that, over a channel where messages can be lost, two parties can never be completely certain they have agreed to act toget
Statistics
Probability sampling randomly selects cases so that every member of a population has a known probability greater than zero of being chosen for the sample; these probabilities need
Business administration
In the business environment, a deep understanding of organizational behavior has become an essential element of successful organizational operations. Organizational behavior explor
Food & nutrition
In modern society, food plays an indispensable role in our daily lives. Various food additives that help maintain the taste and quality of food and allow it to be stored longer hav
Psychology
In everyday life, we face countless tasks and challenges that require concentration. Concentration plays a very important role in learning, work, and achieving personal goals. In m
