Several dentists and patients with special dental problems have experimented with the device.

Several other similar systems also existed with even higher performance, but these often required special cabling that was incompatible with LocalTalk / PhoneNet, and also required patches to the networking stack that often caused problems.

Several concepts that provide alternative definitions for the reaction mechanisms involved and their application in solving related problems exist.

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 foundation-related engineering problems, such as the Leaning Tower of Pisa, prompted scientists to begin taking a more scientific-based approach to examining the subsurface.

Several algorithms are freely available to solve knapsack problems, based on dynamic programming approach, branch and bound approach or hybridizations of both approaches.

Several serious problems resulted from this:

Several other examples of provable quantum speedups for query problems have subsequently been discovered, such as for finding collisions in two-to-one functions and evaluating NAND trees.

Several theoretical problems have been found with the AAH, and some claims made by the AAH have been challenged as having explanations aside from a period of aquatic adaptation.

Several linguistic problems arise in the attempt to relate Sumerian with known language families.

Several of the fundamental problems caused by the transition to sound were soon solved with new camera casings, known as " blimps ", designed to suppress noise and boom microphones that could be held just out of frame and moved with the actors.

Several other newspapers launched in the 1980s, including the Sunday Correspondent, had collapsed without winning enough readers to be profitable, and The Independent was experiencing similar problems.

Several prominent civil engineer considered the problems of Deeping Fen and the river outfall at the end of the 1700s.

Several studies have shown the importance of the Internet in providing social support, particularly to groups with chronic health problems.

" Several mathematicians accepted the challenge, notably Fields Medalist Steve Smale, who responded to a request of Vladimir Arnold by proposing a list of 18 problems.

Several problems with MR led to the development of the newer systems:

Several solutions to these problems were explored in the 1960s.

Several problems of gameplay are left woefully ambiguous or completely untouched in Linnaeus ' notes, and some translations are problematic.

Several essays about aesthetics followed, whereupon Schlick turned his attention to problems of epistemology, the philosophy of science, and more general questions about science.

Several modifications of the basic CSP definition have been proposed to adapt the model to a wide variety of problems.

Several of the processes investigated did not come to fruition owing to political and economic problems but the establishment of the ICI Pruteen process for the production of bacterial SCP for animal feed was a milestone in the development of the fermentation industry.

Several problems are related to shade in pasture areas.

Several radio stations have been forced to drop the program because of this policy, thus reducing Dr. Demento's affiliate count ( seven affiliates in 2008, versus over 100 at its peak ), further exacerbating the show's financial problems.

Several projects resulted in financial problems and many of the new buildings had fire code violations.

Several years of her life have been spent in the homeland, and she had written to friends to alert them of our coming.

Several conventions have been held in recent months in hotels on a nonsegregated basis.

Several germanium resistors have been thermally cycled from 300 to 4.2 Af and their resistances have been found to be reproducible within 1/3 millidegree when temperatures were derived from a vapor pressure thermometer whose tubing is jacketed through most of the liquid helium.

Several financial institutions, both banks and insurance companies, have been sounded out.

Several days after the companies had received the questionnaire, members of the research team contacted the presidents of eleven of these companies in person or by phone to discuss any ambiguities or difficulties the addressees might have experienced in completing the questionnaire.

Several signers affixed their names, it was learned, after being told that no tax increase would be possible without consent of the General Assembly and that a provision could be included in the charter to have the town take over the Johnston Sanitary District sewer system.

( Several times recently I have wondered whether shows were being staged for the sake of the script or just to entertain the audience with the spectacle of scenery being shifted right in front of their eyes.

Several of these double entries have been collected by Ben Bagley and Michael McWhinney, along with Rodgers and Hart songs that disappeared permanently en route to New York and others that reached Broadway but have not become part of the constantly heard Rodgers and Hart repertory, in a delightfully refreshing album, Rodgers And Hart Revisited ( Spruce Records, 505 Fifth Avenue, New York ).

Several robot cities have been planned for the country: the first will be built in 2009 at a cost of 500 billion won, of which 50 billion is direct government investment.

Several of the dialects have been influenced by contact with non-Germanic linguistic groups, such as the dialect of Carinthia, where in the past many speakers were bilingual with Slovene, and the dialect of Vienna, which has been influenced by immigration during the Austro-Hungarian period, particularly from what is today the Czech Republic.

Several AFI Alums have received both national and international recognition.

Several unusual applications, such as a nuclear battery or fuel for space ships with nuclear propulsion, have been proposed for the isotope < sup > 242m </ sup > Am, but they are as yet hindered by the scarcity and high price of this nuclear isomer.

Several biographical programs have been made, such as the 2004 BBC television programme entitled Agatha Christie: A Life in Pictures, in which she is portrayed by Olivia Williams, Anna Massey, and Bonnie Wright.

Several additional candidates for written ASL have appeared in over the years, including Sutton SignWriting, Sign Script, ASL-phabet, and Si5s.

Several genres of fiction have been confused as alternate histories.

Several volcanoes on offshore islands have records of historic activity.

Several of Ambrose's works have recently been published in the bilingual Latin-German Fontes Christiani series ( currently edited by Brepols ).

Several religious brotherhoods which have sprung up in and around Milan at various times since the 14th century have been called Ambrosians.

Several saints and six popes have borne this name, including the only English pope, Adrian IV, and the only Dutch pope, Adrian VI.

Several alternatives to the human sacrifice have been presented in Greek mythology.

Several other princes have borne the name Alexander: