Since the mid 1950s, when urethane foam first made its appearance in the American market, growth has been little short of fantastic.

Since the 1950s, this type of fiction has to a large extent merged with science fictional tropes involving cross-time travel between alternate histories or psychic awareness of the existence of " our " universe by the people in another ; or ordinary voyaging uptime ( into the past ) or downtime ( into the future ) that results in history splitting into two or more time-lines.

Since the 1950s, Prince Philip has also added herbaceous borders and a water garden.

Since the growth of global fishing enterprises after the 1950s, intensive fishing has spread from a few concentrated areas to encompass nearly all fisheries.

" Since the 1950s conservatism in the United States has been chiefly associated with the Republican Party.

* Since the 1950s, the United States Atomic Energy Commission has named its highest honor, the Fermi Award, after him.

Since the 1950s, hydrology has been approached with a more theoretical basis than in the past, facilitated by advances in the physical understanding of hydrological processes and by the advent of computers and especially geographic information systems ( GIS ).

Since the 1950s, when Lacan and Foucault argued that each epoch has its own knowledge system, which individuals are inexorably entangled with, many post-structuralists have used historicism to describe the view that all questions must be settled within the cultural and social context in which they are raised.

Since the 1950s, many blues harmonica players have amplified their instrument with microphones and tube amplifiers.

Since the 1950s and 1960s in particular, the Irish have become assimilated into the British population.

Since the 1950s, manga has steadily become a major part of the Japanese publishing industry, representing a ¥ 406 billion market in Japan in 2007 ( approximately $ 3. 6 billion ) and ¥ 420 billion ($ 5. 5 billion ) in 2009.

Since the 1950s however, manufacturing shortcuts have resulted in a quality decline of machetes.

Since trade was restricted in the 1950s they have found work as high altitude porters, guides, cooks and other accessories to tourism and alpinism.

Since the early 1970s, oral history in Britain has grown from being a method in folklore studies ( see for example the work of the School of Scottish Studies in the 1950s ) to becoming a key component in community histories.

Since the 1950s, the club's helmets have featured eagle wings, originally silver on a kelly green helmet.

Since the late 1950s, almost all phono input stages have used the RIAA equalization standard.

Since the 1950s, television has been the main medium for molding public opinion.

Since the 1950s, television has been the main medium for molding public opinion.

Since the 1950s, Montevideo's prosperous middle classes have tended to abandon the formerly fashionable downtown areas for the more modern high-rise apartment buildings of Pocitos, a beachfront neighborhood east of the center.

Since the late 1950s, aerospace engineers have used the term " unobtainium " when referring to unusual or costly materials, or when theoretically considering a material perfect for their needs in all respects, except that it does not exist.

Since the end of the 20th century, the economic strength during the 1920s has drawn close comparison with the 1950s and 1990s, especially in the United States of America.

Since the 1950s, Real Madrid and Barcelona have dominated the championship.

: Since the 1950s, both the atmospheric CO < sub > 2 </ sub > level and obesity levels have increased sharply.

Since then, the Cockney accent has been more accepted as an alternative form of the English Language rather than an ' inferior ' one ; in the 1950s the only accent to be heard on the BBC ( except in entertainment programmes such as Sooty ) was RP, whereas nowadays many different accents, including Cockney or ones heavily influenced by it, can be heard on the BBC.

A final class of exceptional lines is identifiable from the following considerations: Since no two generators of Af can intersect, it follows that their image curves can have no free intersections.

Since I have already discussed his moral position, that discussion is incorporated by reference into the following pages, which will focus on the empirical and analytic side of Fromm's treatment.

Since the change to better nutrition, he feels he can report on improvements in health, though he considers the following statements observations and not scientific proof.

Since the Catholic Church expresses such desire that the Sacred Scriptures be read, the following taken from the Holy Bible ( New Catholic Edition ) will prove a means of grace and a source of great spiritual blessing.

Since the administrative reforms in Bavaria in the 1970s, the town also encompasses the following Ortsteile:

Since we require the process to be adiabatic, the following equation needs to be true

Since its video release it has acquired a cult following, along with the other two films in the trilogy.

Since the following two hundred years saw the rise of the Classical Greek civilization, which has been enduringly influential in western society, the Battle of Marathon is often seen as a pivotal moment in European history.

Since the area has been referred to as the Balkans, notable conflicts have included the following

Since 1964, following clashes between the two communities, the Turkish Cypriot seats in the House remained vacant, while the Greek Cypriot Communal Chamber was abolished.

Since the 1980s, following the popularization of computer technology, it has become fashionable in marketing for names of products and companies, and for 1990s online video games where players use pseudonyms ( when spaces were not allowed ).

Since the corona has been photographated at high resolution in the X-rays by the satellite Skylab in 1973, and then later by Yohkoh and the other following space instruments, it has been seen that the structure of the corona is very various and complex: different zones have been immediately classified on the coronal disc

Since the Iraq War, evangelicalism has begun to make inroads in Iraq, capitalizing on a new openness to Western missionaries following the US-led invasion of the country, although the vast majority of converts are from other sects of Christianity present in Iraq .< ref >

Since Arafat's death, he is formally head of Fatah's political bureau and chairman, but his actual political following within Fatah appears limited.

Since July 2007, following the 2006 Palestinian legislative election and the following Battle of Gaza, Hamas has functioned as the de-facto ruler in the Gaza Strip, forming an alternative Hamas Government in Gaza.

Since then, and even in recent years, public spokesmen in Haiti as well as international academics and statesmen have denounced this event as the payment of an illegitimate debt, in several cases calling on the French government to repay it ( the French government has never been willing to repay it, though there was a hoax following the 2010 Haiti Earthquake involving a fake website purporting to offer reparation payment on behalf of the French Government ).

Since homomorphisms are morphisms, the following specific kinds of morphisms defined in any category are defined for homomorphisms as well.

Since 1990, Hezbollah has been accused of the following attacks and attempted attacks.

Since cast iron was becoming cheaper and more plentiful, it also became a major structural material following the building of the innovative Iron Bridge in 1778 by Abraham Darby III.

Since 1980, linguists studying children, such as Melissa Bowerman, and psychologists following Jean Piaget, like Elizabeth Bates and Jean Mandler, came to suspect that there may indeed be many learning processes involved in the acquisition process, and that ignoring the role of learning may have been a mistake.

Since July 2012, Odyssey has been back in full, nominal operation mode following three weeks of ' safe ' mode on remote maintenance.

Since 2003, following the death in custody of a prisoner, Naseem, the Maldives experienced several anti-government demonstrations calling for political reforms, more freedoms and, and end to torture and oppression.

Since its economy was highly dependent on the rest of the former Soviet Union for energy and raw materials, the breakdown in trade following the breakup of the Soviet Union had a serious effect, exacerbated at times by drought and civil conflict.