There are a lot of theories -- nobody really knows what causes it.
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For the better part of a century, wood scientists have been beating up on each other's explanations of what causes it.
What causes it: Inflammation of the plantar fascia, a thick band of tissue that runs along the bottom of your foot from the heel to the toes.
Two centuries after Carl Linnaeus invented the system now used to describe it, and a century after Charles Darwin worked out what causes it, the ability of that diversity to surprise is still staggering.
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The business controls how much it decides to pay per check-in, what causes it would like to support, sets the donation limit per month and even provide an offer back to the user if they choose.
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The WHO said it is an "important and major challenge" to solve the riddle of what causes the infection, where it originates and how widespread it is.
Ove Hoegh-Guldberg of the University of Queensland, who has been studying coral bleaching since the early 1980s, presented new work to the conference on what exactly it is that causes the algae to become burdensome.
When people are totally out of sync with what tomorrow looks like, it causes brand damage.
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Any information that sheds light on what causes the disease and what stops it in its tracks has got to be great news.
It is also what causes the median and average of all returns to look higher even though in 50% of the one year periods the gold and real estate blended portfolio underperformed by 0.07% or more.
Right now, Lynch says, it is not clear what causes some patients to respond and others not to.
But what is it about a crisis that causes people and organizations to step up, often without being asked?
I've been trying to find out just what it is about pregnancy that causes all these symptoms to disappear and whether this quirk of nature could really be turned into the reality of a treatment.
It is not even clear what causes them, let alone anything else.
What is it about supply chain thinking that causes sustainability problems?
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In a world with a zillion causes (starving children, baby seals), it's hard to fathom what drives folks like Ms. Rojas to make charitable causes of their own ambitions, but that may be exactly the sort of mentality it takes to succeed here.
Something, it does not really matter what, causes an initial price rise.
What is it about the Harvard Business School brand that causes dollars to rain down on students and teachers alike?
We all know what happens when steel is left exposed and unmaintained: Corrosion causes it to revert to its base elements as rust.
Interestingly although much of her client base actively supports liberal to radical causes, Linda does not get deeply involved in what it is they are promoting.
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We immediately started asking questions, many of which went unanswered because there was either no relevant information available (including what causes brain cancer) or conflicting information (including how to treat it).
Philosophers and mathematicians can debate what causes mean reversion, but in the case of the markets, it seems to be a "wisdom of crowds" phenomenon--the historic return represents the prices investors put on future corporate earnings, which tend to climb in the long run.
For example, sometimes when a senior manager makes a request, it causes a cascade of activity that is far beyond what she intended.
But one of the most important causes, highlighted in a new report by McKinsey, is that there has been what it calls "an unprecedented weakness in private investment".
However he said the Lottery Commission had done what it was meant to do by choosing the bid that would give most to good causes without any ministerial or political interference.
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