When it was reported that the Lambert W function provides an exact solution to the quantum-mechanical double-well Dirac delta function model for equal charges — a fundamental problem in physics — Corless and developers of the Maple Computer algebra system made a library search to find that this function was in fact ubiquitous to nature.

When the time interval between adjacent samples is a constant ( T ), the sequence of delta functions is called a Dirac comb.

When developing quantum electrodynamics in the 1930s, Max Born, Werner Heisenberg, Pascual Jordan, and Paul Dirac discovered that in perturbative calculations many integrals were divergent.

When integrating the above term over the fermion fields one obtains a factor of the square root of the determinant of the Dirac operator for each of the n Majorana fermions.

When constructing theories such as QED which is invariant under parity reversal, Dirac spinors may be used, while theories that do not, such as the electroweak force, must be formulated in terms of Weyl spinors.

When the host finally prodded him to respond, Dirac simply said, " That was a statement, not a question.

When Captain John Gibault of Salem had visited Burma in 1793 his ship, the Astra, had been promptly commandeered and taken by her captors up the Irrawaddy River.

When the fate of the individual is visited on the group, then ( the warm sweet butter dripped from her raised trembling fork and she pushed her head forward belligerently ), ah, then the true bitterness of existence could be tasted.

When she was nine years old, she wrote a description of a store she had visited.

When King Saud visited Washington, the overwhelming question consuming the press was the size of his family.

When Richard Nixon visited China in 1972, this song was played as the welcome music.

When Charlotte's friend Ellen Nussey visited Haworth in 1833, she reported that Emily and Anne were " like twins ", " inseparable companions ".

When Gianfranco Fini visited Israel in late November 2003 in the function of Italian Deputy Prime Minister, he labeled the racial laws issued by the fascist regime in 1938 as " infamous ", as also Giorgio Almirante, historic leader of MSI, had done before.

When Saint Macarius visited Saint Anthony, Saint Anthony clothed him with the monk's garb, and foretold him what would be of him.

When Bede was about 17 years old, Adomnan, the abbot of Iona Abbey, visited Monkwearmouth and Jarrow.

When Snodgrass and Heller visited Clipperton in 1898, they reported that " no land plant is native to the island ".

When Defoe visited in the mid 1720s, he claimed that the hostility towards his party was, " because they were English and because of the Union, which they were almost universally exclaimed against ".

When Dr Blackwell visited London in 1859, Elizabeth travelled to the capital.

When Orwell was in the sanatorium in Kent his wife's friend Lydia Jackson visited.

When Pausanias visited Thebes in Boeotia, in the second century AD, he was shown Hector's tomb and was told that the bones had been transported to Thebes according to a Delphic oracle.

When Mary Pickford visited Hawks at basic training, his superior officers were so impressed that they promoted him to flight instructor and sent him to Texas to teach new recruits.

When Keller visited Akita Prefecture in Japan in July 1937, she inquired about Hachikō, the famed Akita dog that had died in 1935.

" When James Bruce visited the area in the later 18th century, he noted that the locals counted 45 inhabited islands, but stated he believed that " the number may be about eleven.

When Susan B. Anthony visited Aberdeen, she stayed with the Baums.

When the early humanist Benzo d ' Alessandria visited Verona before 1310, he noted the " Laberinthum which is now called the Arena "; perhaps he was seeing the cubiculi beneath the arena's missing floor.

When Banda visited a city, a contingent of women were expected to greet him at the airport and dance for him.

When Jinnah called for Direct Action, on 16 August 1946, Gandhi was infuriated and visited the most riot prone areas to stop the massacres, personally.

When Maria's eldest sister Alexandra visited Gatchina in July 1894, she was surprised to see how weak her brother-in-law Alexander III had become.

Rowse wrote, ' When Menzies visited us All Souls College, Oxford he told me that he was a Cornish Sampson on his mother's side.

When Morse visited Rome, he refused to take his hat off in the presence of the Pope.

) When representatives of the science ministry visited DS9 in " Destiny ", they were noticeably less nationalistic than most Cardassians seen previously.

The argument that school vouchers increases quality and efficiencies in schools forced to compete is supported by studies such as " When Schools Compete: The Effects of Vouchers on Florida Public School Achievement " ( Manhattan Institute for Policy Research's, 2003 ), which concluded that public schools located near private schools that were eligible to accept voucher students made significantly more improvements than did similar schools not located near eligible private schools.

When he retired from Virginia in 1994, he became Distinguished Research Professor at the Institute for Humane Studies at George Mason University until 2000.

When the group ’ s grant was exhausted, he joined the faculty of Illinois Institute of Technology, where he was a professor of political science from 1942 to 1949, and also served as department chairman.

When Maroger's book became available, Reginald Marsh drew on Maroger's book-jacket an airplane dropping an atomic bomb on the Maryland Art Institute, a reference to the controversy Maroger was causing in the local press over the abstract art versus realism debate.

When the challenge failed, the college had to become a segregated school, but it set aside funds to help establish the Lincoln Institute near Louisville to educate black students.

When the Institute opened in 1891, the Press had 540 employees eligible to join it, including apprentices.

When the Oregon Institute was established, the community was known as the Institute.

When the Institute was dissolved, the trustees decided to lay out a townsite on the Institute lands.

* Madison Powers and Ruth Faden ,“ Racial and Ethnic Disparities in Health Care: An Ethical Analysis of When and How They Matter ,” in Unequal Treatment: Confronting Racial and Ethnic Disparities in Health Care, Washington, DC: National Academy of Sciences, Institute of Medicine, 2002: 722 – 38

When store owner Max Levinson was approached by Carter about stocking the device, he called in his brother-in-law Abe Bookman, a graduate of Ohio Mechanics Institute.

When tuberculosis hit the new town, the Mechanics ’ Institute persuaded the industrial pioneers of North Wiltshire to agree that the railway's former employees should continue to receive medical attention from the doctors of GWR Medical Society Fund, which the Institute had played a role in establishing and funding .< ref > Background – New Mechanics Institution Preservation Society.

Tomorrow, When the War Began became the highest-grossing domestic film of 2010 and it was nominated for nine Australian Film Institute Awards.

When the Royal Canadian Air Force donated land adjacent to RCAF Station Downsview to the Institute, the operations were quickly moved.

When interviewed on Melvyn Bragg's Front Row, Radio 4, November 2004 Mr. Fisher placed Temple Newsam House in the top three non-national museums in the country, along with Birmingham's Barber Institute and the Dulwich Picture Gallery.

When Freud fled Vienna for London after the Anschluss, Trotter became his personal physician, and Wilfred Bion and Ernest Jones became key members of the Freudian psychoanalysis movement in England, and would develop the field of Group Dynamics, largely associated with the Tavistock Institute where many of Freud's followers worked.

When Terrace ended the experiment, Nim was transferred back to the Institute for Primate Studies in Oklahoma, who later sold him to the Laboratory for Experimental Medicine and Surgery in Primates, a pharmaceutical animal testing laboratory managed by NYU.

When Fischer was appointed the Director of the Institute, Otmar Freiherr von Verschuer was simultaneously appointed as director of Department of Human Genetics.

When Chiba University and Tokyo's Institute for Sustainable Energy Policies compiled a list of prefectures meeting demands for reusable energy, Oita ranked number one with a 25. 2 % rate of self-sufficiency through the use of geothermal energy and hot spring heat.

When in 1992 the Romanian Academy changed the official orthography of Romanian language, the Institute of Linguistics at the Academy of Sciences of Moldova did not make the changes, and the official orthography continued as before until 2001 when the changes introduced by the Romanian Academy were adopted by the Moldovan Academy.

When he died in 1950, the works were donated to the Minneapolis Institute of Arts.

When the family's fortunes improved, Rambert was able to pursue his studies for the ministry, but he was more attracted by literature, and in 1845 became professor of French literature at the academy of Lausanne, and in 1860 at the Swiss Federal Institute of Technology in Zürich, where he remained till 1881, when he again became professor at Lausanne.

When Washoe was five, the Gardners decided to move on to other projects, and she was moved to the University of Oklahoma's Institute of Primate Studies in Norman, Oklahoma, under the care of the Foutses.