But again, the effect of these factors is tiny compared to genetics.
He said that salt may have a similar effect to other factors such as smoking and sunlight, which alter the odds of getting the disease.
The compounding effect of these factors was greater than we expected.
Better yet, it seems also to have a hugely positive effect on other risk factors for heart disease and on raising good cholesterol.
They also explained how people missing in the mountains were usually lost or injured, whereas these semi-urban searches were often for people suffering from dementia, feeling suicidal, or young children - all factors that could effect how the missing person acts.
What about combining of these two factors, The January Effect in small-caps and the Presidential Cycle?
It is true that other factors may dampen the effect of the shift into euros.
The effect held good when other possible factors, such as alcohol consumption and physical activity, were taken into consideration.
Businesses and cities across the country should take note: Locally-inspired public spaces, even temporary ones, and other quality-of-life factors have a real effect on economies.
However, an analysis of the lives of 5, 000 women born in Britain in March 1958 suggests that short women have larger families than tall ones, an effect that is independent of such factors as the tendency of people from poor families to be shorter than those from rich ones.
He said these social factors, combined with the effect of the disease on the body, might weaken the person's immune system.
Other aspects of climate change and land subsidence significantly exacerbate this effect though the relative importance of these factors varies from location.
House price weakness helps the buyer, who is usually less wealthy than the seller, one of several factors muting the negative wealth effect.
This effect would be small compared with other factors affecting wages over the next decade, points out David Greenaway, one of the report's authors.
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Temporary factors, including the damping effect of higher food and energy prices on consumer purchasing power and spending as well as supply chain disruptions associated with the tragic events in Japan, appear to account for only some of the recent weakness in economic activity.
And a reduction there undoubtedly is, even allowing for the effect of contracting-out rebates and other factors.
These - along with ambient temperature and other factors - can have a dramatic effect on performance.
It may seem obvious that a long-haul flight has caused the condition to develop in a passenger on such a flight, but there are other factors that can have an adverse effect on the circulation.
This was designed to eliminate confounding factors such as the 'comforting' effect of drinking a cup of tea.
Any decent economist would use standard econometrics to hold these other factors constant to isolate the ceteris paribus effect of taxes.
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However, if exposure to silicone is just one of a number of risk factors for contracting a disease, the effect may be too small to detect without looking at enormous numbers of women.
Co-author Professor Sheena Lewis stressed it was not possible to say whether the DNA damage caused by diabetes would have the same effect on fertility as DNA damage caused by other factors such as smoking.
Part of the reason why it is so important to re-energize the dialogue is that frequently discussions of HIV among Black men have had the effect of casting blame without spreading knowledge of the factors that cause Black men to be at heightened risk.
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But those factors only touch on how much of an effect a natural disaster can have on investment portfolios around the world.
So there appear to be predisposing factors at work, as well as the triggering effect of the autoantibodies.
So strong was the effect on the reefs that the researchers believe it usurps other factors, said lead author Lester Kwiatkowski.
BBC: Particles from fossil fuels 'affect the growth of corals'
While the study did indeed identify a striking correlation, researchers were unclear what actually drove this cause-and-effect relationship, with skeptics pointing out that a number of factors may have caused this link which were uncontrolled for in the study.
That is because one of Dr Yamanaka's transcription factors, c-Myc, sometimes has the unfortunate side-effect of causing cancer.
The WHO still doesn't know whether the effect on indigenous groups is because of the pandemic itself or because of underlying factors.
Pal Suren, the lead author of the Norwegian study, says that no adjustments for parental age or other factors seemed to make a big difference in the size of the effect.
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