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 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 geostatistical methods provide ways of relaxing this stationarity assumption.

Several days prior to the assassination, Minerva had appeared to him in a dream, announcing she had been disarmed by Jupiter, and would no longer be able to protect him.

Several animal vaccines have been made to protect against RVF infection.

Several safety provisions of probate law in the U. S. protect the decedent's assets from mismanagement, loss, and embezzlement, such as the requirement that the executor of the will be bonded, the real property insured, the executor ’ s sale of real estate monitored, and itemized accountings filed with the court during and at the end of probate administration.

Several archaeological digs in the castro of La Carisa ( municipality of Lena ) have found remnants of a defensive line whose main purpose was to protect the valleys of central Asturias from invaders who came from the Meseta through the Pajares pass: the construction of these fortifications reveals a high degree of organization and cooperation between the several Asturian communities, in order to defend themselves from the southern invaders.

" Several thinkers have argued that a healthy society needs not only to protect, but also to encourage dissent.

Several years later, in 1650, the first document to protect the quality of Rioja wines was drawn up.

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 airports were built to protect the Panama Canal from foreign aggression.

Several trade organizations, such as the Trade Federation and Commerce Guild, kept armies of droids in order to protect their profits and occasionally took advantage of this, such as when the Trade Federation invaded and occupied Naboo, resulting in the Battle of Naboo.

Several federal, state, county and local law enforcement agencies protect the town.

Several orchid species thought to be extinct in the United Kingdom including one native species in this genus have been found in habitat and are currently the subject of aggressive conservation efforts to protect and restore these showy plants to their native ranges.

Several of the proteins that anchor to GPI on the cell membrane are used to protect the cell from destruction by the complement system, and, without these anchors, the cells are more easily targeted by the complement proteins.

Several personal rumors about Shaw had been discussed, and Shaw sought to protect the reputation of the college from such rumors.

Several environmental conservation leaders are working to protect the valley, including Pronatura Noreste.

Several southeastern states, such as Florida, Georgia, and South Carolina have conservation laws which protect Sarracenia.

Several of the drivers had to swerve to avoid him and the safety car had to be deployed to protect him and the competitors.

( Several versions tell that Havelok was raised under a false name, Cuaran, in order to protect his identity, though the Middle English version omits this detail.

Several breakwaters have been constructed along the north coast of the island to protect the beach and impede the process.

Several times it has promised to improve our condition, and many it has deceived to us, and it is not left us more resource than to appeal to the arms to defend our properties, to protect our lives and to save our honor.

Several organizations, such as the Arunachal Wildlife and Nature Foundation and the Wildlife Trust of India, have been trying to stop the Nyishi hunting these birds in order to protect them from extinction.

Several tenant families, despite being Puritans like Knightley, used aggressive action as well as national legal arbitration to protect their rights.

Several national and international conservation organisations are working with the Kenya Wildlife Service to protect the park.

Several dedicated parks organizations, including the Emerald Necklace Conservancy, the Friends of the Public Garden, the Franklin Park Coalition, and the Arboretum Park Conservancy, were created to protect, maintain, restore and advocate for the Emerald Necklace parks through the work of their staff, the donations of their constituents and the efforts of their volunteers.

Several additions were made over decades, primarily covered loading docks to protect delivery trucks from weather and a garage to repair trucks.