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While petroleum jelly is a non-polar hydrocarbon hydrophobic ( water-repelling ) and insoluble in water, glycerol ( not a hydrocarbon but an alcohol ) is the opposite: it is so strongly hydrophilic ( water-attracting ) that by continuous absorption of moisture from the air, it produces the feeling of wetness on the skin, similar to the greasiness produced by petroleum jelly.
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While and petroleum
While petroleum has decreased in importance in recent years due to depleting reserves and growth in other industries, it is still the mainstay of the economy.
While that was about twice the petroleum fuel cost in 2010, it is expected to be much less than the market price in less than five years if recent trends continue.
While economists and historians agree that access to and control of the access of others to important resources has throughout history been a factor in warfare and in diplomacy, oil imperialism theorists generally tend to assert that control of petroleum reserves has played an overriding role in international politics since World War I.
While petroleum oil was known prior to this, there was no appreciable market for it.
While the petroleum industry features heavily amongst the industrial landscape in Poza Rica, the city also has a wide variety of other industries.
While the company has significantly expanded its participation in its core business of food, beverage and packaging through regional acquisitions and integration, it has also made inroads into the power, mining, petroleum, infrastructure and telecommunication industries.
While that was about twice the petroleum fuel cost in 2010, it is expected to be much less than the market price in less than five years if recent trends continue.
While these notions have been proven unfounded, the basic idea that petroleum is associated with magmatism persisted.
While most SEG members are involved in exploration for petroleum, SEG members also are involved in application of geophysics methods to mineral exploration as well as environmental and engineering problems, archaeology, and other scientific endeavors.
While the special forces launched an amphibious assault from the Persian Gulf to secure Basra and the surrounding petroleum fields, the main invasion army moved into southern Iraq, occupying the region and engaging in the Battle of Nasiriyah on 23 March.
While he continued studying, he also worked as a nurse on trading and petroleum ships of the Argentine national shipping-company.
While prominent in the area of petroleum production, the South Plains is mainly an agricultural region, producing a great percentage of the nation's cotton and possessing numerous large cattle ranches.
While its largest businesses are primarily involved in the chemical, petroleum and energy industries, it also has South Korea's largest wireless mobile phone service provider, SK Telecom, and provides services in construction, shipping, marketing, local telephone, high-speed Internet, and wireless broadband service WiBro.
While the Carrizo Plain is dotted with dry holes drilled and abandoned by oil companies in decades past, no commercially viable quantities of petroleum have ever been found on the Plain itself.
While and jelly
While some people consider the inclusion of jelly to be a recent variation, the earliest known recipe to include jelly dates from 1747, and the poet Oliver Wendell Holmes wrote of trifles containing jelly in 1861.
While and is
While the pattern is uneven, some having gained more than others, nationalism has in fact served the Western peoples well.
While sovereignty has roots in antiquity, in its present usage it is essentially modern.
While it is hazardous to project the trend of history, it seems clear that a genuine community is painfully emerging in the Western world, particularly among the countries of Western Europe.
While he is worldly, the musician often cultivates public attitudes of childlike astonishment and naivete.
While some think we move too fast and others too slowly, Florida's record is a good one and stands out among the 50.
While white is the coolest summer shade, there are lots of pastel hues along with tintable fabrics that will blend with any wardrobe color.
While it is easy enough to ridicule Hawkins' pronouncement in Pleas Of The Crown from a metaphysical point of view, the concept of the `` oneness '' of a married couple may reflect an abiding belief that the communion between husband and wife is such that their actions are not always to be regarded by the criminal law as if there were no marriage.
While this may well be true in general, I believe it is also important to keep in mind that some recent developments suggest that over the next year or so military electronics may be one of the most strongly growing areas in an economy which is not expanding rapidly in other directions.
While clay is still pressed in mold, press three equally spaced holes 1/4'' '' deep, using pencil eraser, in bottom of clay to allow for proper drying and firing.
While assembled lid is still on design head, gently but firmly press it on plaster board.
While some regression is inevitable, it is discouraged rather than encouraged so that the transference does not follow the stages of planned regression associated with certain casework adaptations of the psychoanalytic model for insight therapy.
While other conditions might be even more effective in bringing about a change from immobility to mobility in Kohnstamm reactivity, it is our hypothesis that all such conditions would have as a common factor the capacity to induce an attitude in the subject which enabled him to divorce himself temporarily from feelings of responsibility for his behavior.
While we had expected that compulsive children in the unstructured school setting would have difficulty when compared to those in the structured, we were surprised to find that the achievement of the high compulsives within the schools where the whole-word method is used in beginning reading compares favorably with that of the low compulsives.
While roleplaying for testing is not too well understood at the present time, it represents one of the major uses of this procedure.
While the phonemes can be very easily stated, no one is likely to be satisfied with the statement until phonemic occurrences can be related in some way to morphemic units, i.e. until the morphophonemics is worked out, or at least far enough that it seems reasonable to expect success.
While the U. S. Department of Labor has a program of projecting industry and occupational employment trends and publishing current outlook statements, there is little tangible evidence that these projections have been used extensively in local curriculum planning.
While it had long been known in general, that `` the public is always wrong '', the use of odd-lot indices now puts the adage on a statistical basis.
While there may be several such industries to which the model of this paper is applicable, the authors make particular claim of relevance to the explanation of the course of wages and prices in the steel industry of the United States since World War 2.
While this influence is a complex matter, depending upon personality factors in the individual as well as upon his social-class experience, there probably are some general statements about social-class background and educational policy that can be made with a fair degree of truth.
While one element is announcing progress, another is delineating its problems.
While and hydrocarbon
While stable operation has been achieved on a variety of hydrocarbon fuels, these cells typically rely on external fuel processing.
While Naftalan crude oil is too heavy for normal export uses ( unlike Azerbaijan's plentiful Caspian Sea oil ), it contains about 50 percent naphthalene, a hydrocarbon that is the active ingredient in coal tar soaps, which are used to treat psoriasis.
While and hydrophobic
While hydrophobic substances are usually lipophilic, there are exceptions — such as the silicones and fluorocarbons.
While the initial attraction between cardiolipin and cytochrome c is electrostatic due to the extreme positive charge on cytochrome c, the final interaction is hydrophobic, where a hydrophobic tail from cardiolipin inserts itself into the hydrophobic portion of cytochrome c.
While native whey protein does not aggregate upon renneting or acidification of milk, denaturing the whey protein triggers hydrophobic interactions with other proteins, and the formation of a protein gel.
While and insoluble
While it is also insoluble in neutral salt solutions, it is readily dispersible in dilute alkalis and in salt solutions such as sodium oxalate and sodium acetate.
While unsubstituted poly ( p-phenylene vinylene ) ( PPV ) is typically insoluble, a number of PPVs and related poly ( naphthalene vinylene ) s ( PNVs ) that are soluble in organic solvents or water have been prepared via ring opening metathesis polymerization.
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