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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.
Phylogenetic comparative methods (PCMs) use information on the historical relationships of lineages (phylogenies) to test evolutionary hypotheses. The comparative method has a long history in evolutionary biology; indeed, Charles Darwin used differences and similarities between species as a major source of evidence in The Origin of Species .
Soxhlet is also known as the first scientist who fractionated the milk proteins in casein, albumin, globulin and lactoprotein. Furthermore, he described for the first time the sugar present in milk, lactose. The Soxhlet solution is an alternative to Fehling's solution for preparation of a comparable cupric/tartrate reagent to test for reducing ...
In biology, phenetics (/ f ɪ ˈ n ɛ t ɪ k s /; from Ancient Greek φαίνειν (phainein) 'to appear'), also known as taximetrics, is an attempt to classify organisms based on overall similarity, usually with respect to morphology or other observable traits, regardless of their phylogeny or evolutionary relation.
This cream is vitamin-rich and promises to even skin tone, brighten skin, replenish moisture and visibly smooth fine lines and wrinkles.
Stereology is a method that utilizes random, systematic sampling to provide unbiased and quantitative data. It is an important and efficient tool in many applications of microscopy (such as petrography , materials science , and biosciences including histology , bone and neuroanatomy ).
CVS Health's Caremark, Cigna's Express Scripts and UnitedHealth Group's Optum control the majority of the U.S. pharmacy benefit market, with their parent companies also operating health insurance ...
A new trial program in Philadelphia is offering financial support to people during pregnancy. The Philly Joy Bank program is giving $1,000 a month to 250 pregnant Philadelphia residents, from ...