However, isolated examples of copper-zinc alloys are known in China from as early as the 5th Millennium BC.

However, the art form combining words and pictures evolved gradually, and there are many examples of proto-comic strips.

However, by identifying clusters of observable properties that are associated with core examples of clitics on the one hand, and core examples of affixes on the other, one can pick out a battery of tests that provide an empirical foundation for a clitic / affix distinction.

However, despite earlier concepts of a strict Early Historic evolution, Irish excavations are increasingly uncovering examples which date to the ' missing ' Iron Age in Ireland.

This has come into question, though, that confidential information has been used to blackmail possible defectors ( see Fair Game ( Scientology )) However, a few transcripts of auditing sessions with confidential information removed have been published as demonstration examples.

* However, if we think of as the field of real numbers, then the direct product does not exist-naively defining in a similar manner to the above examples would not result in a field since the element does not have a multiplicative inverse.

However, there have been examples of poor manufacture ( underprocessing ) and poor hygiene allowing contamination of canned food by the obligate anaerobe Clostridium botulinum, which produces an acute toxin within the food, leading to severe illness or death.

However, a number of Local Governments in Victoria have taken steps to recognize the cultural heritage value of some examples of graffiti, such as prominent political graffiti.

However simple examples such as the indiscrete topological space show that not all topological spaces can be expressed using Grothendieck topologies.

However, syllables such as DAX, BOK, and YAT would all be acceptable ( though Ebbinghaus left no examples ).

However several of the examples below rely on the fact that many expressions do not immediately return success or failure, returning values in the meantime.

However, there are circumstances in which the isomorphism class of an object conceals vital internal information about it ; consider these examples:

However there are other topological 3-spaces, and in some of the non-orientable examples a Klein bottle can be embedded such that it is two-sided, though due to the nature of the space it remains non-orientable.

However, there are some examples of agape used to mean the same as eros.

However, a few examples of these medieval libraries, such as the libraries of Chinguetti in West Africa, remain intact and relatively unchanged.

However this is inadequate for many applications, because many natural examples of infinite dimensional Lie groups are not Banach manifolds.

However, others stress the complex music in some examples as being uncharacteristic of dance melodies and interpret Froissart's poem to mean that the dancing begins with the carol.

However, some species exhibit sex-role reversed behavior in which it is males that are most selective in mate choice ; the best-known examples of this pattern occur in some fishes of the family Syngnathidae, though likely examples have also been found in amphibian and bird species.

However, in Byzantine and in Western European history, dynastic marriages were quite usual and there are many examples which were much more strange.

However, unlike the cited examples, a number of Oxford's poems did appear in printed miscellanies in his lifetime, and the first poem published under Oxford's name was printed in 1572, 17 years before Puttenham's book was published.

However, other structures do exist ; for example, elements such as silicon form familiar materials such as silicones, examples being Silly Putty and waterproof plumbing sealant.

However, unlike the examples given above in English, all of which are anti-proverbs, Tatira's examples are standard proverbs.

However, there are still several types of calls that necessitate the use of telephone operators.

However, if their United States income is not subject to the withholding of tax on wages, their returns are due June 15, 1962, if they use a calendar year, or the 15th day of the 6th month after the close of their fiscal year.

However, the use of tripods is not allowed.

However, there is also much to be gained by making use of the abilities of the local people who are available and interested in recreation.

However, Plato reports that syntax was devised before him, by Prodicus of Ceos, who was concerned by the correct use of words.

However, it did not come into general use until Joseph Greenberg ( 1963 ) formally proposed its adoption.

However, they will often use the same den as their mother until the next breeding season.

However, several telescope manufacturers have recently developed telescope systems that are calibrated with the use of built-in GPS, decreasing the time it takes to set up a telescope at the start of an observing session.

However, expressing these properties as axioms requires use of second-order logic.

However, the use of AU to refer to the astronomical unit is widespread.

However, commonly there are delays in regulatory and legislative actions to limit the use of antibacterials, attributable partly to resistance against such regulation by industries using or selling antibacterials, and to the time required for research to test causal links between antibacterial use and resistance.

However, the increasing prevalence of antibiotic-resistant bacterial infections seen in clinical practice stems from antibiotic use both within human medicine and veterinary medicine.

However, after the victorious Battle of Marathon in 490 BC, they decided to revise the plan and use marble instead.

However, careful design, testing, construction and use minimizes risks.

However, since Paul was from Cilicia and refers to himself using this name ( see Acts 21: 39, 22: 3 ), it seems very natural that the name Cilicia would have continued to be in colloquial use among its residents despite its hiatus in official Roman nomenclature.

However, exploring all n nodes of the tree in this manner would use each link exactly twice: one traversal to enter the subtree rooted at that node, and another to leave that node's subtree after having explored it.

However the original kit version lacked many features that prevented its use as a serious computer system.

However, the term came into wide use only after the publication of a review article by O. Jacobsen in the chemical dictionary of Albert Ladenburg in the 1880s.

However, the University of Washington was unwilling to let the fledgling league use Husky Stadium, probably due to the excessive wear and tear that would have caused to the facility's grass surface.

However most of his best prints are etchings, many of landscapes ; in these he was able most easily to use his drawing style.

However, with the use of cre-lox technology, a caspase 8 knock-out has been created that exhibits an increase in peripheral T cells, an impaired T cell response, and a defect in neural tube closure.

However, there is limited evidence that mistletoe's effects on the immune system help the body fight cancer .... At present, the use of mistletoe cannot be recommended outside the context of well-designed clinical trials.

However, air observers have been use since the beginning of indirect fire and were quickly joined by air photography.

However, for many acts the " off season " does not mean a period of inactivity, they use time for maintenance and practice.