Several additions have been made to the mask decorations over the years with the most prevalent and visually striking being foam horns and fake hair attached to the mask.

Several times Gaskell attempts to mask her strong beliefs in the novel by disclaiming her knowledge of such matters as economics and politics, but the powerful language she gives to her characters, especially John Barton in the opening chapter, is a clear indication of the author's interest in the class divide.

Several times in October 1994, Keirn wore a black mask to attack Hogan during and after Hogan's matches .< ref >

Several materials may be deposited or patterned directly using techniques like soft lithography, Dip-Pen Nanolithography, evaporation through a shadow mask or stencil ...

Several experimental treatments have shown promise in animal models.

Several treatments are used for hyperinsulinemic hypoglycemia, depending on the exact form and severity.

Several varieties of treatments are used, depending on the patient's particular type and pattern of veins and on the physician's preferences.

Several alternative treatments for coronary artery disease exist.

In 2006 Hera Flor ( Clinical Neuroscience, University of Heidelberg ) stated that " Several studies, including large surveys of amputees, have shown that most currently available treatments for phantom limb pain, which range from analgesic and antidepressant medication to stimulation, are ineffective and fail to consider the mechanisms that underlie production of the pain ".

Several alternate therapies, including radiation and vitamin E treatment, have been tried in the past, although those studies generally lacked control groups and most contemporary doctors do not place much value on those treatments.

Several medical treatments shift potassium ions from the bloodstream into the cellular compartment, thereby reducing the risk of complications.

Several treatments are available, and successful control of the disease is common.

Several new experimental treatments may alleviate symptoms.

Several diseases, treatments, and medications can cause xerostomia.

Several optional rear roof treatments were available making these models true factory-built semi-custom-type vehicles.

Several litres of fluid may be drained during the procedure ; however, if more than two litres are to be drained it will usually be done over the course of several treatments.

Several other compounds are known to combine indium ( I ) and indium ( III ), such as In < sup > I </ sup >< sub > 6 </ sub >( In < sup > III </ sup > Cl < sub > 6 </ sub >) Cl < sub > 3 </ sub >, In < sup > I </ sup >< sub > 5 </ sub >( In < sup > III </ sup > Br < sub > 4 </ sub >)< sub > 2 </ sub >( In < sup > III </ sup > Br < sub > 6 </ sub >), In < sup > I </ sup > In < sup > III </ sup > Br < sub > 4 </ sub >.

Several adaptations combine to protect the woodpecker's brain from the substantial pounding that the pecking behaviour causes: it has a relatively thick skull with relatively spongy bone to cushion the brain ; there is very little cerebrospinal fluid in its small subarachnoid space ; the bird contracts mandibular muscles just before impact, thus transmitting the impact past the brain and allowing its whole body to help absorb the shock ; its relatively small brain is less prone to concussion than other animals '.

Several electronic makers such as " Korg " combine a metronome function with the pitchpipe function.

* Several MOSs combine both in a back-to-back combined course called One Station Unit Training ( OSUT ), the longest recruit training in United States Armed Services, which can last up to 22 weeks.

Several operators have launched services that combine SMS with mobile instant messaging ( MIM ) and presence.

Several user interfaces have been written to combine SANE with an easy user method of controlling it.

Several koros combine to form a Tikina, two or more of which comprise a province.

Several changes were made to combine the traditions of Tankiteke and Arcoon and adapt a new lodge program.

Several firms are merchandising enzyme preparation through feed manufacturers.

Several proteins coded for in the tra or trb locus seem to open a channel between the bacteria and it is thought that the traD enzyme, located at the base of the pilus, initiates membrane fusion.

Several factors affect the activity of enzymes ( and other catalysts ) including temperature, pH, concentration of enzyme, substrate, and products.

Several other therapies are currently under investigation, including gene therapy, large neutral amino acids, and enzyme substitution therapy with phenylalanine ammonia lyase ( PAL ).

Several radiotracers ( i. e. radioligands ) have been developed for PET that are ligands for specific neuroreceptor subtypes such as raclopride and fallypride for dopamine D2 / D3 receptors, McN 5652 and DASB for serotonin transporters, or enzyme substrates ( e. g. 6-FDOPA for the AADC enzyme ).

Several rare SD mutations were discovered as researchers resolved cases of enzyme deficiency among suspected TSD carriers, but no cases of the disease itself have been reported.

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

Several companies also saw possibilities in using the technique for extruding or molding vinyl products with a slight cellular core that would reduce costs yet would not affect physical properties of the end product to any great extent.

Several police cars, loaded with armed officers, raced alongside, blazing away at the tires of the big jet.

Several of the replies to Mr. Toynbee, without conscious resort to the traditional terminology with regard to the permission of evil, succeed in restoring the actual context in which present moral and political decisions must be made, by distinguishing between choosing a great evil and choosing in danger of this evil.

( 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 photographs and charts of galaxies help the non-scientist keep up with the discussion, and the smooth language indicates the contributors were determined to avoid the jargon that seems to work its way into almost every field.

Several of the sights on her trip inspired her, and they found their way into her poem, including the World's Columbian Exposition in Chicago, the " White City " with its promise of the future contained within its alabaster buildings ; the wheat fields of America's heartland Kansas, through which her train was riding on July 16 ; and the majestic view of the Great Plains from high atop Zebulon's Pikes Peak.

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 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 genera are popular with the horticultural community, including marigold, pot marigold ( also known as calendula ), cone flowers, various daisies, fleabane, chrysanthemums, dahlias, zinnias, and heleniums.

Several vapour-vesicles may unite while the rock is still viscous, and thus form a large cavity which may become the home of an agate of exceptional size ; thus a Brazilian geode lined with amethyst and weighing 35 tons was exhibited at the Düsseldorf Exhibition of 1902.

Several cultivars are known, such as ' Albus ' ( with white flowers ), ' Sapphire ' ( dark blue flowers ), ' Aureus ' ( leaves striped with yellow ), and ' Variegatus ' ( leaves almost entirely white with a few green bands ).

Several of Alexander's works were published in the Aldine edition of Aristotle, Venice, 1495 – 1498 ; his De Fato and De Anima were printed along with the works of Themistius at Venice ( 1534 ); the former work, which has been translated into Latin by Grotius and also by Schulthess, was edited by J. C. Orelli, Zürich, 1824 ; and his commentaries on the Metaphysica by H. Bonitz, Berlin, 1847.

Several organizations concerned with antimicrobial resistance are lobbying to eliminate the unnecessary use of antibacterials.

Several of ASU's graduate schools also appear among the top of the US News & World Report rankings, including the 30th-ranked W. P. Carey School of Business ( along with its 4th-ranked program in Supply Chain Management and the 15th-ranked program in Information Systems ), the 26th-ranked Sandra Day O ' Connor College of Law, the 43rd-ranked Ira A. Fulton School of Engineering ( including five individual programs ranked in the top 30 ), the 16th-ranked School of Public Affairs, the 26th-ranked Mary Lou Fulton Teachers College, the 21st-ranked College of Nursing and Health, and 25th-ranked Healthcare Management.

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 Evangelical groups reject the practice so as not to be identified with charismatic and Pentecostal groups, which practice it widely.

Several hundred peaceful demonstrators, rioters, and police were injured and hundreds were arrested during the days surrounding the G8 meeting ; most of those arrested have been charged with some form of " criminal association " under Italy's anti-mafia and anti-terrorist laws.

Several other incidents connected with the story of Aeacus are mentioned by Ovid.