Several of the proven archaeological sites have been only partially studied, and other sites of great potential have yet to be mapped.

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 kinds of cytochrome exist and can be distinguished by spectroscopy, exact structure of the heme group, inhibitor sensitivity, and reduction potential.

Several organizations, typically government sponsored, exist globally to qualify and approve such lubricants by evaluating their potential for environmental harm.

Several companies have been working on and creating potential candidates for the U. S. Army's next primary weapon.

Several potential pitfalls have been identified:

Several herbs were grown in pots and assigned the name of a potential lover.

Several residents of Peoria, Illinois, were enticed by descriptions of the area ’ s climate and agricultural potential and soon purchased among them.

Several chemical compounds with potential biological activities are found in sundews, including flavonoids ( kaempferol, myricetin, quercetin and hyperoside ), quinones ( plumbagin, hydroplumbagin glucoside and rossoliside ( 7 – methyl – hydrojuglone – 4 – glucoside )), and other constituents such as carotenoids, plant acids ( e. g. butyric acid, citric acid, formic acid, gallic acid, malic acid, propionic acid ), resin, tannins and ascorbic acid ( vitamin C ).

Several types of channels that are capable of producing the positive feedback necessary to generate an action potential exist.

Several types of cells support an action potential, such as plant cells, muscle cells, and the specialized cells of the heart ( in which occurs the cardiac action potential ).

Several candidates were invited to preach sermons as potential replacements, including the young Bullinger.

Several European countries established the European Working Group for Legionella Infections ( EWGLI ) to share knowledge and experience about monitoring potential sources of Legionella.

Several methods of altering or reallocation of the carriageway ( UK ) or roadway ( USA ) to decrease the potential for social friction during overtaking and passing have been added to many of the manuals used by designers.

Several of these agents also have abuse potential, and their prescription is strictly controlled.

Several research groups are investigating cancer stem cells and their potential to cause tumors.

Several other kinds of medications have potential for use in treating hyperuricemia.

' Several thousands of years later commentaries additionally suggested that the true pronunciation of this name is composed entirely of vowels, such as the Greek Ιαουε, as they allow the creation of language, thus conveying the absolute infinite potential of God's character.

Several gaming websites were impressed by the handheld's computing capabilities and looked forward to the system's potential as a gaming platform.

Several papers by Daniel Teichroew fired a whole generation of enthusiasts with the potential of automated systems development.

Several of these characters are shown to have motive with respect to the potential demise of one their number ( typically an unlikeable individual ).

Several senior staffers and aides advised against the phrase, saying anything that might cause further East-West tensions or potential embarrassment to Gorbachev, with whom President Reagan had built a good relationship, should be omitted.

Several drivers have credited Uber for increasing their potential earnings by 30 %.

Several independent mass estimates, obtained by different methods, suggest that an adult Albertosaurus weighed between 1. 3 tonnes ( 1. 4 short tons ) and 1. 7 tonnes ( 1. 9 tons ).

Several proteins are involved, but two main methods of regulation have been identified: targeting mitochondria functionality, or directly transducing the signal via adaptor proteins to the apoptotic mechanisms.

* Several computer operating systems have various methods of running software originally designed for older versions or other OSs:

Several methods exist to compute the value of without actually expanding a binomial power or counting k-combinations.

Several of these methods may be directly extended to give definitions of e < sup > z </ sup > for complex values of z simply by substituting z in place of x and using the complex algebraic operations.

Several methods of calculation have been proposed, and although there may be small differences in the numerical values of the electronegativity, all methods show the same periodic trends between elements.

Several methods of loading are available, including pellet loading, cast loading, and press loading, the choice being determined by the characteristics of the explosive.

Several cooking methods used to soften often tough cuts have evolved into national specialties, including Sauerbraten ( sour roast ), involving marinating beef or venison in a vinegar or wine vinegar mixture over several days.

Several methods exist to dispel the curse, depending on the actor.

Several methods exist for disseminating nerve agents on the battlefield.

Several detailed studies using various methods to measure growth curves among known specimens have demonstrated that there is actually only one valid Pterodactylus species, P. antiquus.

Several methods to protect user's privacy when using location based services have been proposed, including the use of anonymizing servers, blurring of information e. a.

Several methods exist to aid the design of real-time systems, an example of which is MASCOT, an old but very successful method which represents the concurrent structure of the system.

Several methods of RNA splicing occur in nature ; the type of splicing depends on the structure of the spliced intron and the catalysts required for splicing to occur.

) Several types of naval " torpedo " were developed and deployed, most often by the Confederates, who faced a severe disadvantage in more traditional warfare methods.

Several of the trials were intended to established tactical methods of using submarines in warfare.

Several methods for heating an exhaust fluid using the gamma rays produced by positron annihilation have been proposed.

Several methods have been proposed to remedy this by increasing genetic diversity somehow and preventing early convergence, either by increasing the probability of mutation when the solution quality drops ( called triggered hypermutation ), or by occasionally introducing entirely new, randomly generated elements into the gene pool ( called random immigrants ).

Several but not all methods of altitude classification treat clouds with significant vertical extent as a separate family.

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 methods of Bayesian estimation select measurements of central tendency from the posterior distribution.

Several methods that can reduce the exposure to ionizing radiation during a CT scan exist.

Several geostatistical methods provide ways of relaxing this stationarity assumption.