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A model comparing the theoretical relative frequency of gastrointestinal adverse effects and cost effectiveness of celecoxib, nonspecific NSAIDs alone, NSAIDs plus a proton pump inhibitor, NSAIDs plus an H < sub > 2 </ sub > receptor antagonist, NSAIDs plus misoprostol, and diclofenac / misoprostol, found the lowest probability of adverse gastrointestinal events for celecoxib, followed by NSAIDs plus a proton pump inhibitor, NSAIDs plus an H < sub > 2 </ sub > receptor antagonist, NSAID plus misoprostol, diclofenac / misoprostol, and NSAID alone.
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model and comparing
The term ' family ' comes from the tree model of language origination in historical linguistics, which makes use of a metaphor comparing languages to people in a biological family tree or in a subsequent modification to species in a phylogenetic tree of evolutionary taxonomy.
For example, the Student's t-test for comparing the means of two groups can be formulated as seeing if an estimated parameter in the model is different from 0.
When comparing the predicted expansion rate of the universe as given by the tracker solutions with cosmological data, a main feature of tracker solutions is that one needs four parameters to properly describe the behavior of their equation of state, whereas it has been shown that at most a two-parameter model can optimally be constrained by mid-term future data ( horizon 2015-2020 ).
Due to processing power limitations, the program uses a probabilistic model ( by using a random number generator or RNG ) instead of actually generating random text and comparing it to Shakespeare.
However, Maranzano's scheming, his arrogant treatment of his subordinates, and his fondness for comparing his organization to the Roman Empire ( he attempted to model the organization after Caesar's military chain of command ) did not sit well with Luciano and his ambitious friends, like Vito Genovese, Frank Costello and others.
Deviance is calculated by comparing a given model with the saturated model-a model with a theoretically perfect fit.
To assess the contribution of individual predictors one can enter the predictors hierarchically, comparing each new model with the previous to determine the contribution of each predictor.
No two klystrons are exactly identical ( even when comparing like part / model number klystrons ), and so every card is specific to the individual unit.
Today, the Cornell Box is often used to show off renderers in a similar way as the Stanford Bunny, the Utah teapot, and Lenna: computer scientists often use the scene just for its visual properties without comparing it to test data from a physical model.
Crusoe saw a painted clay model on May 18, 1953, which corresponded closely to the final car ; he gave the car the go-ahead in September after comparing it with current European trends.
He illustrated Kelvin's model by comparing it with the collision of a steel ring and an anvil-the anvil would not be shaken very much, but the steel ring would be in a state of vibration and therefore departs with diminished velocity.
It is most often used when comparing statistical models that have been fitted to a data set, in order to identify the model that best fits the population from which the data were sampled.
The validity of the model can be tested by comparing simulation results with time series observations.
In the UK this bottom third of the TV band is known as group A, see gain graph comparing grouped aerials to a wideband aerial of the same size / model.
RHEED specialists characterize film morphologies by measuring the changes in beam intensity and comparing these changes to theoretical calculations, which can effectively model the dependence of the intensity of diffracted beams on the azimuth angle.
The model can be tested by comparing its results with the data collected in behavioral experiments.
SSM was used to develop a reference model relevant to protective services which, together with information categories for each of the SSM activities and conceptual measures of performance, was used to analyse the efficacy of Micro-Analysis by comparing and contrasting information content.
conducted a survey the same year comparing the computer model of LB1's skull with a sample of microcephalic human skulls, concluding that the skull size of LB1 falls in the middle of the size range of the human samples and is not inconsistent with microcephaly.
When comparing both theories with contemporary research in cognitive psychology, Rogers ' personality is to be preferred over the Freudian model.
Project goals include identifying common responses of AGCMs to imposed paleoclimate " boundary conditions ," understanding the differences in model responses, comparing model results with paleoclimate data, and providing AGCM results for use in helping in the analysis and interpretation of paleoclimate data.
In particular, the framework is too static in its view upon semantic quality, mainly considering models, not modeling activities, and comparing these models to a static domain rather than seeing the model as a facilitator for changing the domain.
Marken ( 1986 ) conducted an experiment comparing the behavior of a perceptual control hierarchy computer model with that of six healthy volunteers in three experiments.
model and theoretical
As far as atoms and their electron shells were concerned, not only did this yield a better overall description, i. e. the atomic orbital model, but it also provided a new theoretical basis for chemistry
The term is also used, especially in the description of algorithms, to mean associative array or " abstract array ", a theoretical computer science model ( an abstract data type or ADT ) intended to capture the essential properties of arrays.
* Alternating Turing machine, model of computation used in theoretical computer science
Between 70 K and room temperature, berkelium behaves as a Curie – Weiss paramagnetic material with an effective magnetic moment of 9. 69 Bohr magnetons ( µ < sub > B </ sub >) and a Curie temperature of 101 K. This magnetic moment is almost equal to the theoretical value of 9. 72 µ < sub > B </ sub > calculated within the simple atomic L-S coupling model.
Paul Drude proposed the first theoretical model for a classical electron moving through a metallic solid.
The first theoretical description of metals was given by Paul Drude in 1900 with the Drude model, which explained electrical and thermal properties by describing a metal as an ideal gas of then-newly discovered electrons.
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.
* British mathematician Alan Turing created a theoretical model for a machine, now called a universal Turing machine, that could carry out calculations from inputs,
The Capability Maturity Model Integration ( CMMI ) project was formed to sort out the problem of using multiple models for software development processes, thus the CMMI model has superseded the CMM model, though the CMM model continues to be a general theoretical process capability model used in the public domain.
The model provides a theoretical continuum along which process maturity can be developed incrementally from one level to the next.
In modern theoretical physics, the Casimir effect plays an important role in the chiral bag model of the nucleon ; and in applied physics, it is significant in some aspects of emerging microtechnologies and nanotechnologies.
Diesel spent two more years making improvements and in 1896 demonstrated another model with a theoretical efficiency of 75 percent, in contrast to the 10 percent efficiency of the steam engine.
The term semi-empirical is sometimes used to describe theoretical methods that make use of basic axioms, established scientific laws, and previous experimental results in order to engage in reasoned model building and theoretical inquiry.
Exact solutions of great theoretical interest include the Gödel universe ( which opens up the intriguing possibility of time travel in curved spacetimes ), the Taub-NUT solution ( a model universe that is homogeneous, but anisotropic ), and Anti-de Sitter space ( which has recently come to prominence in the context of what is called the Maldacena conjecture ).
Communist leaders like Mao Zedong and North Vietnamese Ho Chi Minh both implemented guerrilla warfare giving it a theoretical frame which served as a model for similar strategies elsewhere, such as the Cuban " foco " theory and the anti-Soviet Mujahadeen in Afghanistan.
The theoretical model can be refined and augmented with actual data from an operating engine, using tools such as an indicator diagram.
In any case, fully understanding an engine and its efficiency requires gaining a good understanding of the ( possibly simplified or idealized ) theoretical model, the practical nuances of an actual mechanical engine, and the discrepancies between the two.
The Hawk-Dove game is arguably his single most influential game theoretical model.
In a 1995 review of Rushton's Race, Evolution and Behavior, anthropologist and population geneticist Henry Harpending expressed doubt as to whether all of Rushton's data fit the r / K model he proposed, but nonetheless praised the book for its proposing of a theoretical model that makes testable predictions about differences between human groups.
Once memory theories like the Atkinson-Shiffrin memory model and Baddeley's working memory model were established as a theoretical framework in cognitive psychology, new cognitive frameworks of learning began to emerge during the 1970s, 80s, and 90s.
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