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, following the lead of D. W. Jefferson, there are those who argue that, whatever its legacy of influence may be, Tristram Shandy in its original context actually represents a resurgence of a much older, Renaissance tradition of " Learned Wit " – owing a debt to such influences as the Scriblerian approach.

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.

Since arriving here, however, I have formed a far different religious picture of present-day England.

Since that time, however, the 7800 has been emulated successfully and is now common on emulation sites.

Since the Belgian Blue ’ s bone structure is the same as a normal cow, however holding a greater amount of muscle, causes them to have a greater meat to bone ratio.

Since 1982, however, the arguments have been easier to make, because lawyers have been able to cite the relevant sections of the constitution rather than rely upon legal abstraction.

Since 2008, however, racism has become an even more pressing concern.

Since 2000, with a struggling Gateway was taken over by eMachines, this left only Dell as Compaq's major competitor, however Dell became the number one supplier of PCs in 2001.

Since that time, however, Eisenhower's reputation has risen.

Since 2004, the colón stopped circulating and is now never used in the country for any type of transaction ; however some stores still have prices in both colons and U. S. dollars.

Since 2002, FNC has been broadcast to Brazil ; however, commercials are replaced with Fox Extra.

Since 1968, however, the lowest published count for power-of-two was long achieved by the split-radix FFT algorithm, which requires real multiplications and additions for.

Since no copy of the Ur-Hamlet has survived, however, it is impossible to compare its language and style with the known works of any of its putative authors.

Since the days of the Sanhedrin, however, no body or authority has been generally regarded as having the authority to create universally recognized precedents.

Since the Second Lebanon War, however, Iran has restructured Hezbollah to limit the power of Hassan Nasrallah, and invested billions of dollars " rehabilitating " Hezbollah.

Since the 2008 onset of the Irish economic and banking crisis, however, the country's economy has suffered, and since then Ireland has experienced net emigration once again.

Since Brahms himself clearly originated the story, however, some have questioned Hoffman's theory.

Since the people of Lesotho believe sex requires a penis, however, they do not consider their behavior sexual, nor label themselves lesbians.

Since democracy returned to Brazil, however, there has been a steady increase in the percentage of literate people.

Since error theory denies that there are moral truths, error theory entails moral nihilism and, thus, moral skepticism ; however, neither moral nihilism nor moral skepticism conversely entails error theory.

Since the early 1970s, however, the dominant scholarship has noted dissimilarities between Persian Mithra-worship and the Roman Mithraic mysteries, and the mysteries of Mithras are now generally seen as a distinct product of the Roman Imperial religious world.

Since 1996, however, the collection has also included oral histories of senior NASA administrators and officials, astronauts, and project managers, part of a broader project to document the lives of key agency individuals.

Since it depends only on the basic mechanic of betting in rounds, strip poker can be played with any form of poker ; however, it is usually based on simple variants with few betting rounds, like five card draw.

Since 2007, however, it is no longer a legal requirement in European countries ( such as Germany ) to declare ESL milk as ultra-heated, consequently, it is now often labeled as " fresh milk " and just advertised as having an " extended shelf life ", making it increasingly difficult to distinguish ESL milk from traditionally pasteurized fresh milk.

Since 2000 however, the government has taken a comprehensive initiative to modernize the existing bus fleets and minimally impact the environment.

Since his death in 1981, however, Askin's legacy has been tarnished by persistent unproven allegations that he was involved in organised crime and official corruption.