That remained the state of affairs until the late 1960s when Harald Loe ( at the time a professor at the Royal Dental College in Aarhus, Denmark ) demonstrated that a chlorhexidine compound could prevent the build-up of dental plaque.

Farming of abalone began in the late 1950s and early 1960s in Japan and China.

Collins decided to record it in the late 1960s amid an atmosphere of counterculture introspection ; she was part of an encounter group that ended a contentious meeting by singing " Amazing Grace " as it was the only song to which all the members knew the words.

The last of the Ainu households disappeared in the late 1960s, when Yamanaka Kitaro committed suicide after the death of his wife.

His attitude towards conjectures was that one should not dignify a guess as a conjecture lightly, and in the Taniyama case, the evidence was only there after extensive computational work carried out from the late 1960s.

By the late 1960s he had started to become interested in scientific areas outside of mathematics.

From the late 1940s to the early 1960s, following the creation of the state of Israel, most of these Jews fled their countries of birth and are now mostly concentrated in Israel.

One story is that The Rolling Stones went to stay at Korner's house late one night, in the early 1960s, after a performance.

Although he himself was a blues purist, Korner criticised better-known British blues musicians during the blues boom of the late 1960s for their blind adherence to Chicago blues, as if the music came in no other form.

This practice was particularly popular in the late 1960s.

However, the late 1950s and early 1960s saw the onset of a lasting transformation of the city by the tourist industry.

The local economy is based upon tourism directed to the beaches of the Costa Blanca and particularly the second residence construction boom which started in the 1960s and reinvigorated again by the late 1990s.

From the late 1820s until the mid 1960s, Arapawa Island was a base for whaling in the Sounds.

The region was a major producer of raw opium ( hence the name Afyon ) until the late 1960s when under international pressure, from the USA in particular, the fields were burnt and production ceased.

Remains of the walls of this fort were discovered west of the castle when excavating the foundations for a new post office and telephone exchange building in the late 1960s.

By the late 1960s, the area of LAFTA had a population of 220 million and produced about $ 90 billion of goods and services annually.

Throughout the late 1950s and into the 1960s, the United States and the Soviet Union had been developing a series of missile systems with the ability to shoot down incoming ICBM warheads.

* About 50 people in Vernon, Florida collected insurance claims for loss-of-limb accidents in the late 1950s and early 1960s ; this was more than two-thirds of all such claims in the United States during that time.

He changed his surname from Einstein ( to avoid confusion with the famous physicist ) and began a comedy career that quickly made him a regular on variety and talk shows during the late 1960s and early 1970s.

A standardized form of the Basque language, called Euskara Batua, was developed by the Basque Language Academy in the late 1960s.

In the late 1960s and early 1970s, Thackeray built the party by forming temporary alliances with nearly all of Maharashtra's political parties.

However, in the late 1950s and early 1960s, base-stealing was brought back to prominence primarily by Luis Aparicio and Maury Wills, who broke Cobb's modern single-season record by stealing 104 bases in 1962.

During the late 1960s, the Baseball Players Union became much stronger and conflicts between owners and the players ' union led to major work stoppages in 1972, 1981, and 1994.

The BASIC language was also central to the HP Time-Shared BASIC system in the late 1960s and early 1970s, and the Pick operating system.

Following a brief modeling career in the late 1960s, Berenson became a freelance photographer.

On the other hand, the bright vision of the future has been directly stated in science fiction concerned with projecting ideal societies -- science fiction, of course, is related, if sometimes distantly, to that utopian literature optimistic about science, literature whose period of greatest vigor in the late nineteenth and early twentieth centuries produced Edward Bellamy's Looking Backward and H. G. Wells's A Modern Utopia.

Although americium was likely produced in previous nuclear experiments, it was first intentionally synthesized, isolated and identified in late autumn 1944, at the University of California, Berkeley by Glenn T. Seaborg, Leon O. Morgan, Ralph A. James, and Albert Ghiorso.

In the late 1970s, the Continuing Anglican movement produced a number of new church bodies in opposition to women's ordination, prayer book changes, and the new understandings concerning marriage.

Subgenus Alnus: Trees with stalked shoot buds, male and female catkins produced in autumn ( fall ) but stay closed over winter, pollinating in late winter or early spring, about 15 – 25 species, including:

Shrubs wit shoot buds not stalked, male and female catkins produced in late spring ( after leaves appear ) and expanding and pollinating then, one to four species:

The leaves are produced in the autumn or early spring in warm climates depending on the onset of rain and eventually die down by late spring.

Amathus still flourished and produced a distinguished patriarch of Alexandria, St. John the Merciful, as late as 606-616, and a ruined Byzantine church marks the site ; but it declined and was already almost deserted when Richard Plantagenet won Cyprus by a victory there over Isaac Comnenus in 1191.

In the late 1960s the D2000, D4000 range was produced ( also known as the TC500 — Terminal Computer 500 ) which had a golf ball printer and a 1K ( 80 bit ) disk memory.

About 100 tonnes of dysprosium are produced worldwide each year, with 99 % of that total produced in China Dysprosium prices have climbed nearly twentyfold, from $ 7 per pound in 2003, to $ 130 a pound in late 2010.

DDT also continued to be produced in the US for foreign markets until as late as 1985, when over 300 tons were exported.

The English Wikipedia became the world's largest encyclopedia in 2004 at the 300, 000 article stage and by late 2005, Wikipedia had produced over two million articles in more than 80 languages with content licensed under the copyleft GNU Free Documentation License.

Electronic music was once associated almost exclusively with Western art music but from the late 1960s on the availability of affordable music technology meant that music produced using electronic means became increasingly common in the popular domain.

Critics in the late 19th and early 20th centuries, Karl von Baer and Wilhelm His, did not believe that living embryos reproduce the evolutionary process and produced embryo drawings of their own which emphasized the differences in early embryological development.

Originally titled The Girls Upstairs, the musical was originally to be produced by David Merrick and Leland Hayward in late 1967, but the plans ultimately fell through, and Stuart Ostrow became the producer, with Joseph Hardy to direct.

It is only from the late nineteenth century that art historical scholarship, in seeking an understanding of artistic output in the cultural context in which it was produced, has come to recognise Bernini's achievements and restore his artistic reputation.

Scholars in the first half of the 20th century came to the conclusion that the Yahwist was produced in the monarchic period, specifically at the court of Solomon, and the Priestly work in the middle of the 5th century BC ( the author was even identified as Ezra ), but more recent thinking is that the Yahwist was written either just before or during the Babylonian exile of the 6th century, and the Priestly final edition was made late in the Exilic period or soon after.

This produced a smoother and more consonant type of polyphony which we now consider to be definitive of late Renaissance music, given Palestrina's position as Europe's leading composer ( along with Lassus ) in the wake of Josquin ( d. 1521 ).

Over the course of the late 1980s and early 1990s as fewer new hits were produced, game shows lost their permanent place in the daytime lineup.

From 1969 until the late 1980s, Hee Haw was produced by Yongestreet Productions, named after Yonge Street, a major thoroughfare in Toronto.

The split between Aristide and Préval produced a dangerous political deadlock, and the government was unable to organize the local and parliamentary elections due in late 1998.

The Glasgow School, which developed in the late 19th century, and flourished in the early 20th century, produced a distinctive blend of influences including the Celtic Revival the Arts and Crafts Movement, and Japonisme, which found favour throughout the modern art world of continental Europe and helped define the Art Nouveau style.

High fidelity — or hi-fi or hifi — reproduction is a term used by home stereo listeners and home audio enthusiasts ( audiophiles ) to refer to high-quality reproduction of sound to distinguish it from the poorer quality sound produced by inexpensive audio equipment, or the inferior quality of sound reproduction characteristic of recordings made until the late 1940s.

Some disco songs incorporated sounds produced with synthesizers and drum machines, and some compositions were entirely electronic ; examples include Giorgio Moroder's late 1970s productions such as Donna Summer's hit single " I Feel Love " from 1977, Cerrone's Supernature ( 1977 ), Yellow Magic Orchestra's synth-disco-pop productions from their self-titled album ( 1978 ), Solid State Survivor ( 1979 ), and several early 1980s disco-pop productions by the Hi-NRG group Lime.