Several elementary functions which are defined via power series may be defined in any unital Banach algebra ; examples include the exponential function and the trigonometric functions, and more generally any entire function.

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 free energy functions may be formulated based on system criteria.

Several lines of evidence indicate that some " junk DNA " sequences are likely to have unidentified functional activity, and other sequences may have had functions in the past.

Several maintenance and training functions previously operated in-house by America West were outsourced during the bankruptcy.

* Several run-down industrial buildings have been renovated and converted into prime real estate and other community functions.

Several hexokinase isoforms or isozymes that provide different functions can occur in a single species.

Several of the traditional head of state functions has instead been transferred to the Speaker of the Riksdag.

Several digital mixers include spectrograph and real time analyzer functions.

Several function classes have been proposed, and it soon became obvious that trapdoor functions are harder to find than was initially thought.

Several studies have demonstrated difficulties with executive functions in youth with spina bifida, with greater deficits observed in youth with shunted hydrocephalus.

Several psychiatric hospitals proved the style's adaptability to their size and functions.

Several technology research and development efforts exist to integrate the functions of aircraft flight control systems such as ailerons, elevators, elevons, flaps, and flaperons into wings to perform the aerodynamic purpose with the advantages of lower RCS for stealth via simpler geometries and lower complexity ( mechanically simpler, fewer or no moving parts or surfaces, less maintenance ), and lower mass, cost ( up to 50 % less ), drag ( up to 15 % less during use ) and, inertia ( for faster, stronger control response to change vehicle orientation to reduce detection ).

Several hospital pharmacies have decided to outsource high risk preparations and some other compounding functions to companies who specialize in compounding.

Several studies using neuroimaging techniques have also established that posterior visual areas in blind individuals may be active during the performance of nonvisual tasks such as Braille reading, memory retrieval, and auditory localization as well as other auditory functions.

Several technology research and development efforts exist to integrate the functions of aircraft flight control systems such as ailerons, elevators, elevons and flaps into wings to perform the aerodynamic purpose with the advantages of less: mass, cost, drag, inertia ( for faster, stronger control response ), complexity ( mechanically simpler, fewer moving parts or surfaces, less maintenance ), and radar cross section for stealth.

Several royal ceremonies and state functions are held within the walls of the palace every year.

Several researchers have reported that pranayama techniques are beneficial in treating a range of stress-related disorders, improving autonomic functions, relieving symptoms of asthma ( though a different study did not find any improvement ) and reducing signs of oxidative stress.

Several technology research and development efforts exist to integrate the functions of flight control systems such as ailerons, elevators, elevons, flaps, and flaperons into wings to perform the aerodynamic purpose with the advantages of less: mass, cost, drag, inertia ( for faster, stronger control response ), complexity ( mechanically simpler, fewer moving parts or surfaces, less maintenance ), and radar cross section for stealth.

Several technology research and development efforts exist to integrate the functions of aircraft flight control systems such as ailerons, elevators, elevons, flaps and flaperons into wings to perform the aerodynamic purpose with the advantages of less: mass, cost, drag, inertia ( for faster, stronger control response ), complexity ( mechanically simpler, fewer moving parts or surfaces, less maintenance ), and radar cross section for stealth.

Several supervisory functions are currently exercised by the Secretary of State for Telecommunications and the Information Society within the Ministry of Industry, Trade and Science.

Several functions were performed during and after the funeral ceremony.

Several areas of the brain have been shown to respond particularly to forms representational art perhaps due to the brain's ability to make object associations and other functions relating to attention and memory.

Several of these formations are still active, though they now are armoured formations, for example Guides Cavalry in Pakistan.

Several U. S. companies are active in this sector.

Several incarnations of political groups promoting lesbian issues have evolved ; 13 lesbian organizations were active in Mexico City in 1997.

Several armed militia groups are presently active in Iraq.

Several oil and gas exploration companies are active in the Seychelles offshore.

Several Song emperors, most notably Huizong, were active in promoting Taoism, collecting Taoist texts and publishing editions of the Daozang.

* Several typhoons and hurricanes resulted in extreme destruction in this decade, especially in 2005 ( the most active in recorded history ) with Hurricane Katrina nearly destroying New Orleans, followed by Hurricane Rita, which wreaked destruction along the U. S. Gulf Coast.

Several types of astrophysical objects emit, fluoresce, or reflect X-rays, from galaxy clusters, through black holes in active galactic nuclei ( AGN ) to galactic objects such as supernova remnants, stars, and binary stars containing a white dwarf ( cataclysmic variable stars and super soft X-ray sources ), neutron star or black hole ( X-ray binaries ).

Several medieval scholars were considered to be magicians in popular legend, notably Gerbert d ' Aurillac and Albertus Magnus: both men were active in the scientific research of their day as well as in ecclesiastical matters, which was enough to attach to them a nimbus of the occult.

Several bands patterning themselves after The Comets are also active in Europe, including Bill Haley's New Comets in Germany.

Several design houses are active in this space, prominent names being:

Several South African, Kuwaiti and other Muslim agencies are active in Mozambique, with one important one being the African Muslim Agency.

Several forms of the vitamin are known, but pyridoxal phosphate ( PLP ) is the active form and is a cofactor in many reactions of amino acid metabolism, including transamination, deamination, and decarboxylation.

Several bandmembers are currently active in UK music industry bodies – amongst them the FAC, whilst Mark Kelly was elected in November 2009 to both the Performer and Main Boards of the UK's PPL.

Several registered political parties are active and represented in the National Assembly, although Swapo Party has won every election since independence.

Several authors of internet-hosted trip reports have claimed that smoking dried coleus leaves causes effects similar to smoking dried Salvia divinorum leaves, and the active compounds in the two plants may have similar chemical structures.

Several new gaming conventions popped up in various parts of the country, some of which are still active.

Several manufacturers have developed video laryngoscopes which employ digital technology such as the CMOS active pixel sensor ( CMOS APS ) to generate a view of the glottis so that the trachea may be intubated.

* Several televangelists are very active in the national or international political arena ( e. g., Pat Robertson, Jerry Falwell, Jimmy Swaggart, John Hagee ), and often espouse conservative politics on their programs.

Several churches are active players in the community.

Several other groups including the Gun Owners of America and the Citizens Committee for the Right to Keep and Bear Arms, while smaller in size, are also politically active.

Several chapters are now active across the United States, mostly in large and diverse cities.

Several stories by Robert E. Howard, such as the novella Skull-Face and the short story " Scarlet Tears ", feature undying sorcerers who retain a semblance of life through mystical means, their bodies reduced to shriveled husks with which they manage to maintain inhuman mobility and active thought.

Several conditions are needed to produce foam: there must be mechanical work, surface active components ( surfactants ) that reduce the surface tension, and the formation of foam faster than its breakdown.

Several towns across the state have active musical venues, with several communities having a particularly important musical legacy.