Since the absorption of radio waves in rocklike material varies with wave length, it should be possible to sample the temperature variation at different depths beneath the surface and possibly detect changes in the structure or composition of the lunar surface material.

Since Lavoisier's knowledge of strong acids was mainly restricted to oxoacids, such as ( nitric acid ) and ( sulphuric acid ), which tend to contain central atoms in high oxidation states surrounded by oxygen, and since he was not aware of the true composition of the hydrohalic acids ( HF, HCl, HBr, and HI ), he defined acids in terms of their containing oxygen, which in fact he named from Greek words meaning " acid-former " ( from the Greek οξυς ( oxys ) meaning " acid " or " sharp " and γεινομαι ( geinomai ) meaning " engender ").

Since orbital energies are unique to an atom of a specific element, analysis of the ejected electrons can yield information about the chemical composition of a surface.

Since Biot's time, analysis of meteorites has resulted in accurate measurements of the chemical composition of the solar system.

« Since autumn 99, I have undertaken the composition of a new series of pieces with the general title Exploitation of the concepts.

Since approximately 1900, composers tended to assign an opus number to a composition, published or not.

Since the late 1980s Townshend has predominantly used Synclavier Digital Audio systems for keyboard composition, particularly solo albums and projects.

Since the invention of digital technology and audio sampling, many low budget films have been able to rely on digital samples to imitate the sound of live instruments, and many scores are created and performed wholly by the composers themselves, by using sophisticated music composition software.

Since the multiplication of unit quaternions corresponds to the composition of three dimensional rotations, this property can be made intuitive by showing that three dimensional rotations are not commutative in general.

Since then the apostomes have been added, but otherwise its composition has remained relatively constant, with the main variations being the positions of the peniculids and plagiopylids.

Since the 1980s it has been recognized that, rarely, rocks are dry enough and of a refractory enough composition to record without melting " ultra-high " metamorphic temperatures of 900-1100 ° C.

Since its composition in the late 1st century, numerous apocryphal stories have embellished the gospel's account.

Since its creation, there has been an ongoing debate in Irish society over the song – both in terms of its political suitability, and in terms of the quality of the composition.

Since according to Marx the source of capitalist profit is this surplus labor of the workers, and since in this theory only new, living labor produces profit, it would appear to be logical that enterprises with a low organic composition ( a higher proportion of capital spent on new living labor ) would have a higher rate of profit than enterprises with a high organic composition ( a higher proportion of capital spent on raw materials and means of production ).

Since the overall chemical composition and connectivity of the DNA does not change, the tangled and untangled DNAs are chemical isomers, differing only in their global topology, thus their name.

Since the 19th century, much critical debate has centered on the origins of the chansons de geste, and particularly on explaining the length of time between the composition of the chansons and the actual historical events which they reference.

Since the 1980s he has fulfilled a number of large commissions, including Sudden Time ( for orchestra ), Three Inventions ( for chamber orchestra ) and Antara ( for ensemble and electronics, realised at IRCAM and the first composition ever published using the Sibelius notation program ).

Since 1997 he has taught music theory, history, and composition at Bard College in upstate New York.

Since its composition, it has been considered one of the pinnacles of the Romantic repertoire.

Since functors are required to preserve composition, this says that the linear map corresponding to a sewn together morphism is just the composition of the linear map for each piece.

Since there are faster methods available which do not use radioactive material to analyse the elemental composition of a sample, this compact and low power method is most often used on space missions.

Since this is not normal behaviour for asteroids, it is suspected that Elst – Pizarro has a different, probably icy, composition.

Since patents and regulation ( e. g., U. S. Food and Drug Administration regulation in the U. S .) are very important issues for biotech enterprises, bioengineers are often required to have knowledge related to these issues.

Since the movie omits the religious and mythical elements of Dick's original novel ( e. g. empathy boxes and Wilbur Mercer ), it falls more strictly within the cyberpunk genre than the novel does.

In the first step, the final nonzero remainder r < sub > N − 1 </ sub > is shown to divide both a and b. Since it is a common divisor, it must be less than or equal to the greatest common divisor g. In the second step, it is shown that any common divisor of a and b, including g, must divide r < sub > N − 1 </ sub >; therefore, g must be less than or equal to r < sub > N − 1 </ sub >.

Since r < sub > N − 1 </ sub > is a common divisor of a and b, r < sub > N − 1 </ sub > ≤ g.

Since the first part of the argument showed the reverse ( r < sub > N − 1 </ sub > ≤ g ), it follows that g = r < sub > N − 1 </ sub >.

Since English, German and Dutch have many of the same etymological origins, there actually are a great number of words in both languages that are very similar and do have the same meaning ( e. g. word / Wort / woord, book / Buch / boek, house / Haus / huis, water / Wasser / water ...).

Since then, gubernatorial elections have been offset by two years from U. S. Presidential elections ( e. g., Presidential elections were in 2000 and 2004, gubernatorial elections were in 1998 and 2002 ).

Since Imbolc is immediately followed ( on 2 February ) by Candlemas ( Irish Lá Fhéile Muire na gCoinneal " feast day of Mary of the Candles ", Welsh Gŵyl Fair y Canhwyllau ), Irish imbolc is sometimes rendered as " Candlemas " in English translation ; e. g. iar n-imbulc, ba garb a ngeilt translated as " after Candlemas, rough was their herding ".

* The atomic mass unit ( u ) is defined so that a single carbon-12 atom has a mass of 12 u ; 1 u is approximately .< ref group =" note "> Since the Avogadro constant N < sub > A </ sub > is defined as the number of atoms in 12 g of carbon-12, it follows that 1 u is exactly 1 /( 10 < sup > 3 </ sup > N < sub > A </ sub >) kg .</ ref > The atomic mass unit is convenient for expressing the masses of atoms and molecules.

Since at a minimum the starting code address vector must always be valid on reset, systems commonly included some nonvolatile memory ( e. g. ROM ) starting at address zero to contain the vectors and bootstrap code.

Since all events are sets, they are usually written as sets ( e. g.

Since W ′ is isotropic, multiplication of elements of W ′ inside Cℓ ( V, g ) is skew.

Since 1982, when the International Organization for Standardization adopted Pinyin as the standard romanization of Chinese, many Western languages have changed from spelling this loanword dao in national systems ( e. g., French EFEO Chinese transcription and English Wade – Giles ) to dao in Pinyin.

Since the implementation of the international yard and pound agreement of 1959, a grain has been defined as exactly 64. 79891 milligrams ( mg ); hence one troy ounce is 31. 1034768 grams ( g ) ( exact by definition ), about 10 percent more than the avoirdupois ounce, which is 28. 349523125 g ( exact ).

Since the early 2000s, this rule was changed by the FEI so that each second or fraction of a second over the time allowed would result in 1 time penalty ( e. g. with a time allowed of 72 seconds, a time of 73. 09 seconds would result in 2 time faults ).

Since many dinosaur fossils were found in Mongolia, their names often use Mongolian words, e. g. Tarchia from tarkhi, meaning " brain ", or Saichania meaning " beautiful one ".

Since the early 1960s, with the availability of oracles for certain combinatorial games, also called tablebases ( e. g. for 3x3-chess ) with any beginning configuration, small-board dots-and-boxes, small-board-hex, and certain endgames in chess, dots-and-boxes, and hex ; a new area for data mining has been opened.

Since many components of natural foods have E numbers ( and the number simply is a synonym for the chemical component ), e. g. vitamin C ( E300 ) and lycopene ( E160d ), this is incorrect ; presumably the intent is that the ingredients list does not list any food additives by E number, that is, pure forms of the substances are not intentionally added.

Since the publication of the two original documents, a number of additional Microsoft memoranda on related topics have also been leaked and published ( e. g. Halloween VII ).

Since social capital is readily available no matter the type of community, it is able to override more traditional queues for political engagement ( e. g., education, employment, civil skills, etc .…).

For most bands and most small-to mid-size venues ( e. g., nightclubs and bars ), standard bass guitar speaker enclosures or keyboard amplifiers will provide sufficient sound pressure levels for onstage monitoring. Since a regular electric bass has a low " E " ( 41 Hz ) as its lowest note, most standard bass guitar cabinets are only designed with a range that goes down to about 40 Hz.