Several condensed matter systems are being studied with potential applications to quantum computation, including experimental systems like quantum dots, SQUIDs, and theoretical models like the toric code and the quantum dimer model.

Several competing models, although correctly dealing with the conformation of each individual peptide chain, gave way to the triple-helical " Madras " model, which provided an essentially correct model of the molecule's quaternary structure although this model still required some refinement .< ref > The packing structure of collagen has not been defined to the same degree outside of the fibrillar collagen types, although it has been long known to be hexagonal or quasi-hexagonal.

Several experimental treatments have shown promise in animal models.

Several three-cylinder, two-stroke-cycle models were built while most engines had straight or in-line cylinders.

* Several models of participation are possible: firstly, a model in which the employees form part of the supervisory board or of the administrative board, as the case may be ; secondly, a model in which the employees are represented by a separate body ; and finally, other models to be agreed between the management or administrative boards of the founder companies and the employees or their representatives in those companies, the level of information and consultation being the same as in the case of the second model.

Several models of " simplified English " have been suggested for teaching English as a foreign language:

Several companies were building and selling Lisp Machines in the 1980s: Symbolics ( 3600, 3640, XL1200, MacIvory and other models ), Lisp Machines Incorporated ( LMI Lambda ), Texas Instruments ( Explorer and MicroExplorer ) and Xerox ( InterLisp-D workstations ).

Several computational models of vocabulary acquisition have been proposed so far.

Several models have been proposed for understanding the activities required to manage material movements across organizational and functional boundaries.

Several models of SEM can examine any part of a semiconductor wafer, and some can tilt an object of that size to 45 °.

Several other minor refinements were made to stethoscopes, until in the early 1960s Dr. David Littmann, a Harvard Medical School professor, created a new stethoscope that was lighter than previous models and had improved acoustics.

Several economic models exist for vegetable farms: farms may grow large quantities of a few vegetables and sell them in bulk to major markets or middlemen, which requires large growing operations ; farms may produce for local customers, which requires a larger distribution effort ; farms may produce a variety of vegetables for sale through on-farm stalls, local farmer's markets, u-pick operations.

Several models, both phenomenological and analytical, have been developed to describe the energetics of Auger transitions.

Several previous unsuccessful attempts to unite the colonies were made, with proposed political models ranging from unitary, to loosely federal.

Several models for the origin of gamma-ray bursts postulated that the initial burst of gamma rays should be followed by slowly fading emission at longer wavelengths created by collisions between the burst ejecta and interstellar gas.

Several fashion models who were deemed to commercial and too curvacious were fed up with industry standard and took a different approach.

Several U. S. Navy warship models are on display, and a flight simulator for the new F-35 Lightning II is featured.

Several theoretical models have been developed to explain sensorimotor calibration in terms of synaptic plasticity within the cerebellum.

Several Peugeot models were assembled in Australia, commencing with the 203 in 1953.

Several pornographic actors and glamour models also act as fetish models.

Several boat and ship models were found in the tomb of Tutankhamen, dating to the Sixth Dynasty, and at Meketra ( 2061-2010BC ).

Several models have been created to describe coming out as a process for gay and lesbian identity development, e. g. Dank, 1971 ; Cass, 1984 ; Coleman, 1989 ; Troiden, 1989.

Several such models have been suggested.

Several stories feature clandestine efforts to liberate the Underpeople and grant them civil rights.

Several feature and television movies have been made about the Philip Marlowe character.

Several children's books feature the giraffe, including David A. Ufer's The Giraffe Who Was Afraid of Heights, Giles Andreae's Giraffes Can't Dance and Roald Dahl's The Giraffe and the Pelly and Me.

Several strategy games, such as Rise of Nations, Rome: Total War, Spartan Total Warrior, Empire Earth, Civilization, Ancient Wars: Sparta, Age of Empires, Etrian Odyssey III: The Drowned City and Age of Mythology, feature infantry units called " Hoplites " or " Phalanx ".

Several Sega titles such as Sega SuperStars, Sonic Adventure and Sonic Pinball Party feature minigames themed around the character ( the former of which takes its cue from the main game ).

* Several feature films ended up in Republic's possession ( as stated above ), yet others had been retained by Paramount due to other rights issues ( such as The Buccaneer and The Miracle of Morgan's Creek – it is presumed these remained under Paramount ownership so that remakes could be filmed for release in 1958, without having to license the rights ).

Several analogous systems are found that likewise feature a signature motif on the extracytoplasmic face, a C-terminal transmembrane domain, and cluster of basic residues on the cytosolic face at the protein's extreme C-terminus.

Several types of mushroom ( het ) also feature in Thai cuisine such as straw mushrooms ( het fang ) and white jelly fungus ( het hu nu khao ).

Several episodes of the American TV series Lost feature a wheel which can be physically turned in order to manipulate space and time.

Several stories within the One Thousand and One Nights feature early science fiction elements.

Several films have also been produced on the subject, including two English feature films in 2003 and 2005, and a documentary in 2005 ( both the latter were directed by James Twyman, a New Age writer ).

Several American coins feature the bison, most famously on the reverse side of the " buffalo nickel " from 1913 to 1938.

Several cafes feature live music, a few of which specialize in jazz music, including Jazzcafe De Spieghel on the Peperstraat.

Several outdoor scenes from the 1970 feature film House of Dark Shadows were filmed at the cemetery's receiving vault.

Several C compilers are available for the 8051, most of which feature extensions that allow the programmer to specify where each variable should be stored in its six types of memory, and provide access to 8051 specific hardware features such as the multiple register banks and bit manipulation instructions.

Several disaster films have also been made: released during the turbulence of World War I, the Danish feature film The End of the World revolves around the near-miss of a comet which causes fire showers and social unrest in Europe.

Several video games feature yeti-like creatures as opponents in icy or mountainous levels.

Several feature films were planned, but only one was completed in time, The Magic Box, a biographical film about cinema pioneer William Friese-Greene, made by Festival Film Productions.

Several Ming Dynasty texts list what were claimed as the Nine Offspring of the Dragon ( 龍生九子 ), and subsequently these feature prominently in popular Chinese stories and writings.

Several of their songs feature references to Michael Moorcock's work.

* Several episodes of Supernatural feature references to Enochian.

On March 30, 2007, it opened in select theaters in the United States and Canada and was released on DVD on November 13, 2007 as part of a deluxe box set with a director's cut of Burnett's sophomore feature My Brother's Wedding and three Burnett shorts: Several Friends ( a 1969 aesthetic precursor to Killer of Sheep ), The Horse ( an " allegory of the South " in Burnett's words ), and When It Rains ( praised as one of the greatest short films of all time by critic Jonathan Rosenbaum ).

* Several episodes of The Mask: The Animated Series feature the Mask going up against a time-travelling mad scientist, Dr. Amelia Chronos.

Several Hollywood feature films and notable independent films have used locations in Bastrop County.

Several of her books feature photographs by John Walmsley taken in Streatham, which depict residents of Streatham in their daily lives.