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810 articles found
Physics
The universe is a place with a structure so vast and complex that it surpasses our perception and imagination. Various theories have emerged to unravel the secrets hidden within it
Chemistry
An in-depth look at chromatography, an essential tool in chemical analysis: its basic principles and history, major techniques such as HPLC, GC, IC, SEC, and paper and thin-layer c
Psychology
Depression is emerging as an important issue in society, and many people suffer from this condition. Depression is a serious illness that goes beyond a simple low mood, involves ps
Psychology
In modern society, conflict is an unavoidable reality. Various forms of conflict exist, including friction between individuals, disputes within organizations, and clashes between c
Statistics
Reliability and validity always come up when studying surveys in statistics, marketing, or opinion polling. This guide uses two illustrated examples, shooting and makeup, to make t
General knowledge
What does it mean to be “left-brained” or “right-brained”? This article explains how the two hemispheres divide their roles, explains their cooperation, and discusses the limits of
Library & information science
Why are the papers on a subject concentrated in just a few journals? This article explains how Bradford's law came about, dividing journals into zones in the ratio 1 : n : n², its
Chemistry
Organic chemistry is a branch of chemistry that studies the structures, properties, and reactions of carbon-based compounds, and it is closely connected to various disciplines, inc
Physics
Rayleigh scattering, worked out by Lord Rayleigh in 1871, is the scattering of light by particles much smaller than its wavelength, such as air molecules, and it is far stronger fo
Library & information science
The theory and practice of information organization play a central role in maximizing information discovery and use through the systematic classification and arrangement of materia
Information technology
Why have computers kept getting smaller, faster, and cheaper for more than half a century? This article explains Moore’s Law: how it began, what it really means, how it changed the
Tourism studies
Last chance tourism is travel to see vanishing landscapes, wildlife, or cultures before they are gone. This piece covers the concept and its origins, why people are drawn to it, we
