Such performance-based exams have a big advantage over multiple choice: They go beyond whether students can regurgitate a set of facts on a certain day to assess their know-how.
All of these facts together may make it seem more likely that kids are getting a fever on a certain day of the week even though it may just be a coincidence.
In the swap, Enron agreed to pay the billing service for heating degree days above a certain amount, and get paid for every heating degree day below a certain amount.
The daily deals can also be used by businesses to unload extra inventory or fill seats during slow periods during a certain time of day or week.
Also, viruses and bacteria can live for hours on some surfaces some viral particles have been found to be active up to a day in certain places.
Memory products might be 10-15% off for a certain two to three-day span, for example.
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Or set aside a certain amount of time each day (e.g. 20 minutes) to attack email, slash-and-burn your way through it.
And Richard Sosis, an anthropologist at the University of Connecticut, has already done some research which suggests that the long-term co-operative benefits of religion outweigh the short-term costs it imposes in the form of praying many times a day, avoiding certain foods, fasting and so on.
Whether altruism exists or not is a question for another day, but I am certain that tax advantages for charitable donations play a significant role in this decision.
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"I know I'm supposed to do certain exercises five times a day, but I don't know if it's working, " he says.
While the software-marketing professional visits Facebook five to 10 times a day, there are certain topics she would rather broach on Social Number.
The curbs called for the market to be closed for cool-off periods if the Dow fell a certain number of points in a day.
But essentially, what has happened today is that the prime minister has shifted to say you WILL get a referendum one day - in certain circumstances.
On a good day, Zimbabwe's Robert Mugabe can still muster a certain snarling comic timing, while his nemesis, Morgan Tsvangirai sometimes leans a little to heavily on his footsteps-of-Mandela image.
And, as part of a celebration of the Famicom's 30th anniversary, Nintendo's offering up a trial campaign that'll make certain titles available to download for 30 cents over a 30 day period.
"It was not a very good day, " said the American, who is almost certain to end a year without a title for the first time in his career.
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Rich Products two weeks ago announced a voluntary recall of certain Farm Rich and Market Day brand products because of the possible E. coli contamination.
"The jitters will be there to a certain extent, but at the end of the day it's basketball, " he said.
One reason for the candidates' tardiness in addressing crucial economic issues may be new campaign laws restricting them from certain kinds of electioneering until a month before polling day.
They basically tell themselves, at the beginning of the day, that they have to make a certain amount of money and are then allowed to go home.
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And it was dad who helped me move into my new Philadelphia home following law school on what was a record breaking hot day even though I am fairly certain that he wanted me to come back home to NC.
There are certain things some kids can't do on a given day because it's too hard.
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Since I had a chance to go over a certain amount of these things with many of you on the day of the State of the Union and many of the details will be later, let me just do a sketch of the overall approach.
On this one day certain each year, the future best of a profession in the world are starting their journey.
We put them on an education assembly line every day, starting with one station that teaches them a certain subject before automatically moving them to the next class after a certain period of time.
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The smells are dispensed by a fan which can be programmed to switch on at certain times of the day.
There was a certain irony to those words since, at a hearing later in the day, Ms. Jackson pleaded guilty to filing false tax returns in connection with the same campaign fund, also a felony.
We have a committed group of players and, from Day 1, we gave ourselves certain goals to achieve.
There is a certain cosmic symmetry to the fact that Margo Carlisle passed away on the same day as Cap Weinberger, a man she served with great distinction.
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