News tagged with hypothesis
Queen of spades key to new evolutionary hypothesis
(Phys.org) -- Sleight of hand is a trait that belongs mainly to humans. Or so scientists thought. Studies of common, microscopic ocean plankton named Prochlorococcus show that humans aren't the only ones w ...
May 11, 2012 |
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New evidence argues against prehistoric extraterrestrial impact event
(Phys.org) -- Evidence used to support a possible extraterrestrial impact event is likely the result of natural processes, according to a new collaborative study led by U.S. Geological Survey scientists.
Space & Earth / Earth Sciences
Apr 23, 2012 |
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Fossilized plant matter points to desertification near Tibetan Plateau
Roughly 22 million years ago, at the onset of the Miocene, the Tibetan Plateau started to lift upward. The rising land curbed the flow of moist air from the south, sparking the onset of central Asian desertification. Or, ...
Space & Earth / Earth Sciences
Apr 23, 2012 |
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Research shows that red is not a proxy signal for female genitalia in humans
New research from anthropologists at the University of Kent may have important ramifications for the future study of the role of colour signals in human social and sexual interactions.
Other Sciences / Social Sciences
Apr 19, 2012 |
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Sticking to our goals: What's the best approach for success?
Consumers have an easier time starting toward a goal than finishing it, but according to a new study in the Journal of Consumer Research, a shift in attention can make all the difference in reaching the finish line.
Other Sciences / Social Sciences
Apr 16, 2012 |
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Stem cells 'by default'
In spite of considerable research efforts around the world, we still do not know the determining factors that confer stem cells their main particular features: capacity to self-renew and to divide and proliferate. The scientist ...
Apr 12, 2012 |
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Professor's hypothesis may be game changer for evolutionary theory
(PhysOrg.com) -- A new hypothesis posed by a University of Tennessee, Knoxville, associate professor and colleagues could be a game changer in the evolution arena. The hypothesis suggests some species are ...
Apr 04, 2012 |
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Research on stickleback fish shows how adaptation to new environments involves many genes
A current controversy raging in evolutionary biology is whether adaptation to new environments is the result of many genes, each of relatively small effect, or just a few genes of large effect. A new study ...
Apr 03, 2012 |
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Contact networks have no influence on cooperation among individuals
Researchers at Carlos III University of Madrid and the University of Zaragoza theoretically predict, in a scientific study, that contact networks have no influence on cooperation among individuals.
Apr 02, 2012 |
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The Black Queen Hypothesis: A new evolutionary theory
Microorganisms can sometimes lose the ability to perform a function that appears to be necessary for their survival, and yet they still somehow manage to endure and multiply. How can this be? The authors of an opinion piece ...
Mar 27, 2012 |
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Runner's high motivated the evolution of exercise
In the last century something unexpected happened: humans became sedentary. We traded in our active lifestyles for a more immobile existence. But these were not the conditions under which we evolved. David Raichlen from the ...
Mar 22, 2012 |
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Study shows insect mimic abilities related to size
(PhysOrg.com) -- A group of Canadian researchers who found themselves wondering why some plants or animals are good mimics while others are not, has undertaken a study on the matter and believe they have found ...
Mar 22, 2012 |
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Baboons, infants show similar gesturing behavior, suggesting shared communication systems
Both human infants and baboons have a stronger preference for using their right hand to gesture than for a simple grasping task, supporting the hypothesis that language development, which is lateralized in the left part of ...
Mar 21, 2012 |
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Artificial comet contains building blocks of life
The first molecules of life form naturally in comets, reveals a French-German study led by Uwe Meierhenrich and Cornelia Meinert at the Institut de Chimie de Nice and by Louis Le Sergeant d'Hendecourt at the ...
Space & Earth / Space Exploration
Mar 21, 2012 |
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Emotional expression in music and speech share similar tonal properties
Music is a very strong emotional communicator, and different cultures have different emotional associations for different musical "modes". Now, a new cross-cultural study shows that tonal trends used to express feelings in ...
Other Sciences / Social Sciences
Mar 14, 2012 |
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Hypothesis
A hypothesis (from Greek ὑπόθεσις [iˈpoθesis]) consists either of a suggested explanation for an observable phenomenon or of a reasoned proposal predicting a possible causal correlation among multiple phenomena. The term derives from the Greek, hypotithenai meaning "to put under" or "to suppose." The scientific method requires that one can test a scientific hypothesis. Scientists generally base such hypotheses on previous observations or on extensions of scientific theories. Even though the words "hypothesis" and "theory" are often used synonymously in common and informal usage, a scientific hypothesis is not the same as a scientific theory. A hypothesis is never to be stated as a question, but always as a statement with an explanation following it. It is not to be a question because it states what the experimenter thinks will occur. Hypotheses are usually written in the "if-then form": If X, then Y.
For more information about Hypothesis, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
