Excoffier and his colleagues developed
theoretical models predicting that if modern humans migrated as small bands, then the populations that broke off from their original African family should progressively accumulate slightly harmful mutations — a mutation load.
Theoretical models predicted that the supernova should leave behind a neutron star (an ultradense stellar residue), but so far there is no sign of it.
He did not expect to find any massive galaxies earlier than about 9 billion years ago because
theoretical models predict that such large objects form last.
Theoretical models predict that migration occurs either early in the lives of giant planets while still embedded within the protoplanetary disk, or else much later, once multiple planets are formed and interact, flinging some of them into the immediate vicinity of their star.
Major
theoretical models predict either a parallel line structure, or a checkerboard pattern.
The data collected by Spitzer and other telescopes reveal the exoplanets» sizes and distances to their stars, while
theoretical models predict additional information about the planets» atmospheres and surfaces.
At rooflite, our soil systems have optimized properties for both water management and plant health, which always leads to significantly better stormwater retention results than what current
theoretical models predict.
«What we saw was exactly what
the theoretical model predicted,» says Weis.
Theoretical models predict that parenting strategies should be aimed at parents of inhibited children, however empirical evidence has yet to fully support this notion and would suggest that all parents should be taught to use strategies to increase a child's autonomy (rather than overprotective strategies).
Hence, the primary aim of the present study was to examine how well the proposed
theoretical model predicted APP in young adulthood, in a large, community - based sample assessed in early childhood, adolescence, and emerging adulthood.
Not exact matches
To address those questions, Yarin and his colleagues built a
theoretical model to
predict the pattern made by blood spraying outward from a gunshot wound as it splashes on the floor.
Wong and Amir answered this question with a
theoretical model which quantitatively
predicted both how the bacteria would grow to recover its straight shape and how long it would take.
The
theoretical model is consistent with the data, the scientists note, and also correctly
predicts the lifetime of each layer, giving rise to a step-wise release of inner droplets.
«That's a big problem for the
theoretical models of dark energy which
predicted a considerably higher amount of energy for the early universe,» adds Dr. Matteo Martinelli, postdoc at the ITP.
Economists at North Carolina State University and Indiana University have found that the most widely used
model for
predicting how U.S. government spending affects gross domestic product (GDP) can be rigged using
theoretical assumptions to control forecasts of how government spending will stimulate the economy.
«There has been a long - standing problem with the masses of cepheids — they usually turn out to be less massive than
theoretical models of stellar evolution had
predicted.
Theoretical models of galaxy evolution
predict that present - day galaxies more massive than the Milky Way should be bursting with star formation, but that is not the case.
«Our measurements of the bright spot suggest there are powerful shock waves in the star's atmosphere that reach higher temperatures than are
predicted by current
theoretical models for AGB stars,» says Theo Khouri, astronomer at Chalmers and member of the team.
Advanced x-ray and spectroscopic tools confirmed the crystalline structure the team had created under these conditions, and
theoretical model - based calculations allowed them to
predict the thermodynamic nature and physical properties of Ti3N4.
The idea is to use our
theoretical model of the multiverse to
predict the constants of nature that we can expect to measure in our local region.
Existing
theoretical models of consciousness would
predict that deep convolutional networks are not conscious.
This remarkable behavior of nearly frictionless motion was
predicted by a
theoretical model and has now been verified for molecules on a gold surface.
When experimentalists at RHIC finally crunched through all their data, they confirmed that the quark - gluon fluid indeed had a low viscosity, at or near the
theoretical minimum value
predicted by the five - dimensional black - hole
model.
Based on the
theoretical models, they
predicted experimentally observable parameters of the reaction, such as the rate of hydrogen peroxide decomposition.
«If
theoretical concepts, membrane
models, and cell experiments move closer together and encourage a common language, we will also improve our ability to
predict whether the materials we design will achieve their intended purpose.»
It's already clear that the result rules out many
theoretical models of inflation — most of them, in fact — because they
predict a signal much weaker than the one detected.
There are several ways to produce them, as
predicted by the
theoretical framework known as the Standard
Model, and the most common one was the first one discovered: a collision in which the strong nuclear force creates a pair consisting of a top quark and its antimatter cousin, the anti-top quark.
Such a particle would be «much more thrilling than the Higgs boson», says Christoffer Petersson, a
theoretical physicist at Chalmers University of Technology in Gothenburg, Sweden — the Higgs was already
predicted by the standard
model of particle physics when it was discovered in 2012.
The
theoretical work, led by Fabris, allowed the researchers to develop a «system
model» on the computer able
predict the behaviour of the material.
A
theoretical model (left) quantitatively
predicts how E. coli (right) grown in confined, micro-chambers recover their straight, rod - like morphologies overtime.
A comparison of its luminosity to the values
predicted by
theoretical evolutionary
models suggests that the substellar object has a mass of 0.051 + / - 0.014 Solar - masses, or around 50 times Jupiter's mass in a range between 22 and 57 Jupiter - masses (Luhman et al, 2006; and Mugrauer et al 2006).
Consequently, in the past 20 years his research has evolved from an early focus on prioritizing the effects that humans have on coral reefs and the role that marine protected areas play in conserving biological diversity and ecological processes, to developing
theoretical and simulation
models of coral reefs that will help
predict and suggest alternatives to reduce detrimental effects, to developing practical means to restore degraded reefs through manipulation of the food web and management.
«This is an interesting
theoretical paper using mathematical
modelling to
predict the possible effects of influenza vaccines that have not yet been developed on the circulation and evolution of flu viruses.
The authors show that the inclusion of these effects in the
theoretical model significantly changes the
predicted shape of the galaxy velocity function.
Theoretical models also
predict how black holes with their disks and jets look like in polarized light.
The researchers found that the dusty disks around some protostars, as young stars are called, are even bigger than
theoretical models have
predicted.
«This
theoretical paper by Subramanian and others uses a mathematical
model to
predict the effect of future influenza vaccination, using either a strain - specific or cross-reactive (or «universal») vaccine, which currently does not exist.
They can now use the
theoretical model to make atomic level tweaks and
predict the catalyst's behavior.
If dark matter interacts very weakly with more familiar particles, as
predicted by leading
models, «then it is quite likely that strings will form in it,» says
theoretical astrophysicist Alex Vilenkin at Tufts University in Medford, Massachusetts.
Some
theoretical models have
predicted that dark galaxies were common in the early universe when galaxies had more difficulty forming stars — partly because their density of gas was not sufficient to form stars — and only later did galaxies begin to ignite stars, becoming like the galaxies we see today.
Traditionally, weather
models have used
theoretical principles from meteorology to build top - down
models to
predict what will happen in the future (e.g., when storms will happen and their severity).
Gonzalez - Torres himself had formulated a brilliant
theoretical approach to the circulation of images, objects, and ideas, based on a
model of virality, that incisively responded to the horrors of the AIDS crisis while accurately
predicting the terms of our current cultural epoch.
They define the probability of development of these vorticies into TCs through a «genesis»
model that conditions the favorability of development on various characteristics of the background climate state, and they use a
theoretical model to
predict TC intensities.
Some
models predict a significant die - back in Amazonia (Cox et al,
Theoretical and Applied Climatology, 2004), which could easily outweigh gains in the Arctic.
These results, while confirming that anthropogenic - added climate forcing might have progressively played a dominant role in climate change during the last century, also suggested that the solar impact on climate change during the same period is signficantly stronger than what some
theoretical models have
predicted.»
Nature Geosci 1 (6), 399 - 403, http://dx.doi.org/10.1038/ngeo208 note «Climate
models and
theoretical expectations have
predicted that the upper troposphere should be warming faster than the surface.
Both theory and
models predict the SIE in the Antarctic to decrease.That both CMIP5 and PMIP3 (paleo) fail to capture both observations (The spreads are in the Mkm ^ 2) and
theoretical expectations suggest that systemic bias in the
models.
With respect to hurricane intensity, there are observed trends indicating this and
model results
predicting this, and while there are problems in each (data problems with hurricanes, coarse resolution in global
models, etc.),
theoretical arguments also make clear that there will be more energy and water vapor available in the atmosphere to cause more intense hurricanes, so a very strong case can be made for this happening.
The third uses climate
models to
predict the
theoretical effect of a doubling of carbon dioxide based on scientists» understanding of how different elements of the climate system interact.
«Climate
models and
theoretical expectations have
predicted that the upper troposphere should be warming faster than the surface.