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A Soxhlet extractor is a piece of laboratory apparatus [1] invented in 1879 by Franz von Soxhlet. [2] It was originally designed for the extraction of a lipid from a solid material. Typically, Soxhlet extraction is used when the desired compound has a limited solubility in a solvent , and the impurity is insoluble in that solvent.
Barak Victor Rosenshine (August 13, 1930 – May 22, 2017) was an educational researcher and professor of educational psychology, who developed a set of teaching principles known as "Rosenshine's Principles of Instruction." These principles provided a bridge between educational research and classroom practice and are widely used in education.
Researchers in the field of educational psychology have identified several principles of learning (sometimes referred to as laws of learning) which seem generally applicable to the learning process. These principles have been discovered, tested, and applied in real-world scenarios and situations. They provide additional insight into what makes ...
The Soxhlet extractor was invented by Franz Soxhlet in 1879 for the lipid extraction from milk powder [9] and is one of the most common semi-continuous methods for lipid extraction from solid food samples. The sample is dried, ground to a fine powder and placed on a porous thimble inside the extraction chamber.
Getting a good night's sleep can be a little more challenging amid the hype of the holidays. With changes in routine, diet and potentially time zones, quality sleep could be difficult to come by ...
Malcolm Shepherd Knowles (August 24, 1913 – November 27, 1997) was an American adult educator, famous for the adoption of the theory of andragogy—initially a term coined by the German teacher Alexander Kapp.
Al Zein, a Syrian shawarma restaurant in Alpharetta, Georgia, is going viral for an ad so "brilliant'," people say they’re going to drive hours to try its food.
Coffee beans are hitting record high prices not seen in nearly 50 years after difficult growing seasons among some of the world's top producing regions. Earlier this week, the Wall Street Journal ...