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In organic chemistry, Fehling's solution is a chemical reagent used to differentiate between water-soluble carbohydrate and ketone (>C=O) functional groups, and as a test for reducing sugars and non-reducing sugars, supplementary to the Tollens' reagent test. The test was developed by German chemist Hermann von Fehling in 1849. [1]
Hermann von Fehling was born in Lübeck.With the intention of taking up pharmacy he entered Heidelberg University about 1835. After graduating he went to Gießen as preparateur to Justus von Liebig, with whom he elucidated the composition of paraldehyde and metaldehyde.
The two-factor model of personality is a widely used psychological factor analysis measurement of personality, behavior and temperament. It most often consists of a matrix measuring the factor of introversion and extroversion with some form of people versus task orientation.
The two-factor theory (also known as Herzberg's motivation-hygiene theory and dual-factor theory) states that there are certain factors in the workplace that cause job satisfaction while a separate set of factors cause dissatisfaction, all of which act independently of each other.
In finance, factor theory is a collection of related mathematical models that explain asset returns as driven by distinct economic risks called factors.In less formal usage, a factor is simply an attribute or collection of related attributes that explain an asset's returns.
The two-factor theory of emotion posits when an emotion is felt, a physiological arousal occurs and the person uses the immediate environment to search for emotional cues to label the physiological arousal. The theory was put forth by researchers Stanley Schachter and Jerome E. Singer in a 1962 article.
Frederick Irving Herzberg (April 18, 1923 – January 19, 2000 [1]) was an American psychologist who became one of the most influential names in business management. [2] [3] He is most famous for introducing job enrichment and the Motivator-Hygiene theory.
Barfoed's test is a chemical test used for detecting the presence of monosaccharides.It is based on the reduction of copper(II) acetate to copper(I) oxide (Cu 2 O), which forms a brick-red precipitate.