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 potential methods of altering the climate of Mars may fall within humanity's technological capabilities, but at present the economic resources required to do so are far beyond that which any government or society is willing to allocate to the purpose.

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

Several organisations have begun calling for a new kind of agriculture in which agroecosystems provide food but also support vital ecosystem services so that soil fertility and biodiversity are maintained rather than compromised.

Several technologies have been proposed which both save fuel and provide significantly faster travel than Hohmann transfers.

Several other cantons – Vaud, Neuchâtel, Zürich and Ticino – provide for courts composed of both professional judges and laymen ( Schöffengerichte / tribunaux d ' échevins ).

Several manufacturers offer software that can provide computer-control of DCC layouts.

Several ancient philosophers expressed the idea that nature produces a huge variety of creatures, randomly, and that only those creatures that manage to provide for themselves and reproduce successfully survive ; well-known examples include Empedocles

Several multilateral organizations, such as the World Bank, the Asian Development Bank, and the UN Development Programme also provide assistance.

Several libraries are built on top of or beside OpenGL to provide features not available in OpenGL itself.

Several species are cultivated as ornamentals A few species of Triplaris provide lumber.

Several Perl modules available from CPAN provide serialization mechanisms, including and.

Several 1 MW · h units are used for power quality control in installations around the world, especially to provide power quality at manufacturing plants requiring ultra-clean power, such as microchip fabrication facilities.

Several modern hydrofoil boats also provide transportation across the Indian Ocean between Dar-es-Salaam and Zanzibar.

Several other atomic operations can be used to provide mutual exclusion of data structures ; most notable of these is Compare-And-Swap ( CAS ).

Several Disney business units continue to occupy the town's office buildings, and two utility companies, Smart City Telecom and Reedy Creek Energy Services, both operated from Walt Disney World, provide services to the town.

Several types of NIDs provide more than just a terminal for the connection of wiring.

Several lines of printers, such as the Printronix P7000 cartridge series of line matrix printers are ENERGY STAR ® qualified and provide 40 percent operational energy savings compared to laser printers.

Several reference books provide a comprehensive overview of the discipline.

Several islands in the lake provide critical nesting areas for various birds.

Several other natural gas plants provide extra power during times of peak demand.

Several distributors provide 64-bit z / Architecture versions of Linux, and some also provide ESA / 390-compatible versions.

Several national organizations provide support for those challenged by neurofibromatosis.

Several factors provide major obstacles to the growth of industry: the islands ' geographically isolated position, their distance from each other, a scarcity of raw materials and skilled labor, and the high cost of electricity ( energy is produced by hydropower, imported petroleum, and wood products ) and transportation.

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.