Several fields of discrete mathematics, particularly theoretical computer science, graph theory, and combinatorics, are important in addressing the challenging bioinformatics problems associated with understanding the tree of life.

Several institutions, besides those already mentioned, played important parts.

Several billion kilograms of polyesters are produced industrially annually, important products being polyethylene terephthalate, acrylate esters, and cellulose acetate.

Several important cinematic movements, including the Nouvelle Vague, began in the country.

Several types are existent in Qing dynasty and used in dishes of stewing hams ( 火腿炖肘子 ), and vegetables, or for a wide variety of soup and important soup stocks.

Several important institutional changes took place in this period, such as free and mandatory schooling introduced 1842 ( as first country in the world ), the abolishment of a previous national monopoly on trade in handicrafts in 1846, and a stock company law in 1848.

His critically acclaimed book Lyrics on Several Occasions of 1959, an amalgam of autobiography and annotated anthology, is an important source for studying the art of the lyricist in the golden age of American popular song.

Several formerly important franchise courts were not officially abolished until Courts Act of 1971.

Several important buildings and structures were built during this time, including the Kansas City City Hall and the Jackson County Courthouse — both added new skyscrapers to the city's growing skyline.

Several industry groups also recognize light pollution as an important issue.

Several types of molecules are particularly important during morphogenesis.

Several of the more important ways observations can be affected by human psychology are given below.

Several other important engravers also made cards, including Master ES and Martin Schongauer.

Several economically important products come from Rosaceae, including many edible fruits ( such as apples, apricots, plums, cherries, peaches, pears, raspberries, and strawberries ), almonds, and ornamental trees and shrubs ( such as roses, meadowsweets, photinias, firethorns, rowans, and hawthorns ).

Several important political innovations of classical antiquity came from the Greek city-states and the Roman Republic.

Several Referendums supported the state being in control of the most important utilities and energy companies.

Several important modern cities, including Stockholm and Lviv, were founded in the 1250s.

Several important cultural achievements were made in the decade, including publication of Roger Bacon's important scientific work Opus Majus and Thomas Aquinas ' Summa contra Gentiles.

Several lakesthe most important of which are Lake Herăstrău, Lake Floreasca, Lake Tei, and Lake Colentinastretch across the northern parts of the city, along the Colentina River, a tributary of the Dâmbovița.

Several singular oak trees, such as the Royal Oak in Britain and the Charter Oak in the United States, are of great historical or cultural importance ; for a list of important oaks, see Individual oak trees.

Several important trade routes from India and China ( including the Silk Road ) passed through Bactria and, as early as the Bronze Age, this had allowed the accumulation of vast amounts of wealth by the mostly nomadic population.

Several of Gauthier's students are now important moral, political, and legal philosophers in the United States and Canada.

Several important features of visual perception can be traced to the retinal encoding and processing of light.

Several important diseases of the nervous system are associated with dysfunctions of the dopamine system.

* 1989 – Several hundred East Germans cross the frontier between Hungary and Austria during the Pan-European Picnic, part of the events which began the process of the Fall of the Berlin Wall.

Several events of late 1920 greatly escalated the conflict.

Several key events occurred, which raised public awareness of the New Age subculture: the production of the musical Hair: The American Tribal Love-Rock Musical ( 1967 ) with its opening song " Aquarius " and its memorable line " This is the dawning of the Age of Aquarius "; publication of Linda Goodman's best-selling astrology books Sun Signs ( 1968 ) and Love Signs ( 1978 ); the release of Shirley MacLaine's book Out on a Limb ( 1983 ), later adapted into a television mini-series with the same name ( 1987 ); and the " Harmonic Convergence " planetary alignment on August 16 and 17, 1987, organized by José Argüelles at Sedona in the U. S. state of Arizona.

Several passages in earlier books seem to be setting up the events of Book 24, so if it were indeed a later addition, the offending editor would seem to have changed earlier text as well.

Several different versions of the course of events following the elevation of Silverius exist.

Several figures from the 1970s, including philosopher Antonio Negri who was wrongly accused of being the " mastermind " of the BR, have called for a new analysis of the events which happened during the " years of lead " in Italy.

Several countries run a series of national level events held as part of series ' throughout each of those countries and sometimes across country borders.

Several Vintage Dance Societies hold balls and events to promote and teach Vintage dances.

Several minor events of Leo's pontificate are worthy of mention.

Several events concerning the Shang dynasty are mentioned in various Chinese classics, including the Classic of History and the Commentary of Zuo.

Several of his albums have been released to coincide with large-scale outdoor events, and he is now perhaps as well known as a performer as a musician.

Several clinical trials have already reported positive results using rAAV to treat Leber's Congenital Amaurosis, showing that the therapy was both safe and effective There were no serious adverse events, and patients in all three studies showed improvement in their visual function as measured by a number of methods.

Several such events are visible every year from various places on Earth.

Several times near New Year, Robertson has announced that God told him several truths or events that would happen in the following year.

Several now legendary events took place on the Wartburg in the following decades, best known is the " Singers ' Contest on the Wartburg " ( Sängerkrieg, which is part of the Tannhäuser legend ).

Several centuries after the events of Second Foundation, two citizens of the Foundation seek to find Earth, the legendary planet where humans are said to have originated.

Several years before the events of the games, a demon army known as the Burning Legion intent on Azeroth's destruction corrupted a race called the Orcs, and sent them through a portal to attack Azeroth.

Several of Davis's friends commented that Hyman's depictions of events were not accurate ; one said, " so much of the book is out of context ".

Several economists and historians, amongst them Hufbauer and Schoot ( 2005 ), have analyzed some of the events and policy mistakes that precipitated the crisis of December 1994.

Several significant annual festivals and events are held in or near Athens:

Several stories depict Jade before the events in Heir to the Empire, showing her training under Palpatine and executing his orders.

Several songs, films and other television programs, including The Simpsons, reference or parody characters and events from the show, including the memorable "... can turn the world on with her smile " line from the title song.

Several events connect to the Star Wars: Shadows of the Empire story, such as a mission to assist Dash Rendar in the capture of the Imperial freighter Suprosa, which carries the plans to the second Death Star.

Several Star Trek tales are stories or events within stories, such as Gene Roddenberry's novelization of Star Trek: The Motion Picture, J.

Several major events are celebrated annually in Mataró.