Since the 1960s, composite airframes and quieter, more efficient engines have become available, and Concorde provided supersonic passenger service for more than two decades, but the most important lasting innovations have taken place in instrumentation and control.

Since the 1960s, the islands have diversified away from their traditionally agriculture-based economy towards tourism and financial services, becoming one of the wealthiest areas in the Caribbean.

Since the 1960s, the bass guitar has largely replaced the double bass in popular music as the bass instrument in the rhythm section.

Since the 1960s, blackjack has been a high profile target of advantage players, particularly card counters, who track the profile of cards that have been dealt and adapt their wager and playing strategies accordingly.

Since the 1960s / 1970s, Blissymbols have become popular as a method to teach disabled or handicapped people to communicate.

Since the 1960s, applied ethics has revived the ideas of casuistry in applying ethical reasoning to particular cases in law, bioethics and business ethics, so the reputation of casuistry is somewhat rehabilitated.

Since the international adoption of the MKS standard in the 1940s and the SI standard in the 1960s, the technical use of CGS units has gradually declined worldwide, in the United States more slowly than elsewhere.

Since the early 1960s, it has been known that volcanism has occurred on other planets and moons in the Solar System.

Since then McLean has stated that the lyrics are also somewhat autobiographical and present an abstract story of his life from the mid-1950s until the time he wrote the song in the late 1960s.

Since at least the 1960s, macroeconomics has been characterized by further integration as to micro-based modeling of sectors, including rationality of players, efficient use of market information, and imperfect competition.

Since at least the 1960s, when Marc Bloch's Feudal Society ( 1939 ) was first translated into English in 1961, many medieval historians have included a broader social aspect that includes not only the nobility but all three estates of the realm, adding the peasantry bonds of manorialism and the estates of the Church ; this is sometimes referred to as " feudal society " since it encompasses all members of society into the feudal system.

Since the 1960s, West and later reunified Germany has been attracting migrants primarily from Southern and Eastern Europe as well as Turkey, many of whom ( or their children ) over time acquired German citizenship.

Since the 1960s rather complex mathematical models have been developed, facilitated by the availability of high speed computers.

Since the 1960s, academic history has seen the emergence of new approaches and topics such as social history, demographic history, ethnic history, women's history, environmental history and cultural history.

Since the 1960s and 1970s a large body of scholarship has provided evidence and analysis of the extent to which heterosexuality and homosexuality are socially organized and historically changing.

Since the 1960s various Scottish shops and manufacturers have created vegetarian haggis, substituting various pulses, nuts and vegetables for the meat in the dish.

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

Since the early 1960s, it has published 12 volumes, the first in 1971 and most recently in 2008 ; three more volumes are planned.

Since the 1960s, he has worked with public interest, consumer, family farm, environmental and community organizations at the local, state and national level.

Since the 1960s, orca has steadily grown in popularity ; both names are now used.

Since the 1960s, a theory based on Linear B phonetic values suggests that Linear A language could be an Anatolian language, close to Luwian.

Since the beginning of the 1960s Ladoga has become considerably eutrophicated.

Since the 1960s, the mainland population has declined by 60-70 %; though there has been a small increase on Motunau Island.

Since the 1960s, the number of people claiming Native American ancestry has grown significantly and by the 2000 census, the number had more than doubled.

Since the 1960s the Chief rabbinate of Israel has moved somewhat closer to the positions of Haredi Judaism.

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

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.