News tagged with number
Researchers identify mechanism that maintains stem cells readiness
An immune-system receptor plays an unexpected but crucially important role in keeping stem cells from differentiating and in helping blood cancer cells grow, researchers at UT Southwestern Medical Center report today in the ...
May 31, 2012 |
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Proposed new Internet neighborhoods unveiled June 13
The agency in charge of website addresses has picked June 13 as the day it will reveal proposed new names for online neighborhoods breaking the ".com" mold.
May 30, 2012 |
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Engineered materials: Custom-made magnets
A novel approach to designing artificial materials could enable magnetic devices with a wider range of properties than those now available. An international team of researchers have now extended the properties ...
May 24, 2012 |
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Website address 'revolution' back in motion
The Internet domain name "revolution" was back in action on Tuesday with the agency in charge of website addresses once again taking applications for online neighborhoods breaking the ".com" mold.
May 22, 2012 |
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ICANN resumes bids for new Internet suffixes
(AP) -- The organization overseeing a major expansion of Internet addresses has reopened its system for letting companies and organizations submit proposals.
May 22, 2012 |
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Internet safe spot planned at ".secure" domain
Internet security specialists have applied for a ".secure" domain that they plan to turn into an online safe zone where bad guys aren't allowed.
May 11, 2012 |
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Digital 'wallets' proliferate at cellphone show
Cash, coins and credit cards are so Twentieth Century. At least, that's the opinion of the electronics manufacturers, phone companies, banks and credit card issuers that expect cellphones to be the main way consumers pay ...
May 10, 2012 |
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Social Security's IT system could benefit by joining the cloud, scientist says
The Social Security Administration (SSA) should restructure its already massive information technology (IT) systems so they can be readily scaled up, much like the systems used by Google and Amazon, William L. Scherlis, professor ...
Technology / Computer Sciences
May 09, 2012 |
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ICANN targets May 22 to resume name expansion
(AP) -- The organization behind a major expansion of Internet address suffixes hopes to resume taking proposals on May 22 following a technical glitch that shut down its computer system for weeks. ...
May 09, 2012 |
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ICANN offers refunds to domain name applicants
(AP) -- The organization behind a major expansion of Internet address suffixes is offering full refunds to companies and organizations affected by a weeks-long delay in taking proposals.
May 08, 2012 |
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Freezing liquids help to predict properties of prime numbers
(Phys.org) -- The same freezing which is responsible for transforming liquids into glasses can help to predict some patterns observed in prime numbers, according to a team of scientists from Queen Mary, University ...
May 03, 2012 |
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Website address 'revolution' on hold
The Internet domain name "revolution" was on hold Friday due to a flaw that let some aspiring applicants peek at unauthorized information at the registration website.
Apr 27, 2012 |
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US seizes websites in stolen credit card crackdown
US authorities have ordered the seizure of 36 websites engaged in selling and distributing stolen credit card numbers, officials said Thursday.
Apr 26, 2012 |
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Learned, not innate human intuition: Study finds twist to the story of the number line
Tape measures. Rulers. Graphs. The gas gauge in your car, and the icon on your favorite digital device showing battery power. The number line and its cousins – notations that map numbers onto space and ...
Apr 25, 2012 |
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Accelerating climate change exerts strong pressure on Europe's mountain flora
A pan-European study published in Science shows that mountain plants across the continent are moving to higher altitudes. This often results in raised species numbers on mountain tops, when colonizers from l ...
Apr 19, 2012 |
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Number
A number is a mathematical object used to count and measure. In mathematics, the definition of number has been extended over the years to include such numbers as zero, negative numbers, rational numbers, irrational numbers, and complex numbers.
Mathematical operations are certain procedures that take one or more numbers as input and produce a number as output. Unary operations take a single input number and produce a single output number. For example, the successor operation adds one to an integer, thus the successor of 4 is 5. Binary operations take two input numbers and produce a single output number. Examples of binary operations include addition, subtraction, multiplication, division, and exponentiation. The study of numerical operations is called arithmetic.
A notational symbol that represents a number is called a numeral. In addition to their use in counting and measuring, numerals are often used for labels (telephone numbers), for ordering (serial numbers), and for codes (e.g., ISBNs).
In common use, the word number can mean the abstract object, the symbol, or the word for the number.
For more information about Number, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
