Hypothesis

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hypothesis : a tentative assumption made in order to draw out and test its logical or empirical consequences — Webster

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Hypothesis (plural hypotheses) is a proposed explanation for a phenomenon. For a hypothesis to be a scientific hypothesis, the scientific method requires that one can test it. Scientists generally base scientific hypotheses on previous observations that cannot satisfactorily be explained with the available scientific theories. Even though the words “hypothesis” and “theory” are often used synonymously, a scientific hypothesis is not the same as a scientific theory. A working hypothesis is a provisionally accepted hypothesis proposed for further research.

A different meaning of the term hypothesis is used in formal logic, to denote the antecedent of a proposition; thus in the proposition “If P, then Q”, P denotes the hypothesis (or antecedent); Q can be called a consequent. P is the assumption in a (possibly counterfactual) What If question.

The adjective hypothetical, meaning “having the nature of a hypothesis”, or “being assumed to exist as an immediate consequence of a hypothesis”, can refer to any of these meanings of the term “hypothesis”. — Wikipedia

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  • Rainbow colors reveal cell history - Science Daily
    on September 22, 2017 at 2:11 pm

    Science DailyRainbow colors reveal cell historyScience DailyThus, our hypothesis is that the in vivo environment in the zebrafish pancreas provides powerful signals for rapid β-cell functional maturation. We will now identify these signals, as this knowledge can help to produce functional human β-cells in vitro ...and more » […]

  • The Recent Decline in Drought Over the Southeast...
    on September 22, 2017 at 2:08 pm

    The Recent Decline in Drought Over the Southeast USACO2 Science MagazineOne way to test this hypothesis is to examine historic trends in drought for evidence of recent change during the modern era, in particular over the past two or three decades, during which time the atmosphere experienced the bulk of the carbon dioxide ... […]

  • Convicted toddler killer Mussie Debresay...
    on September 21, 2017 at 5:46 am

    Convicted toddler killer Mussie Debresay acquitted, will walk free from prisonThe AgeThe man convicted of killing his partner's two-year-old daughter by stomping on her has been acquitted of the crime and will walk free from jail. Mussie Debresay was jailed for 11 years for killing the toddler in his Footscray unit in May 2005.and more » […]

  • Mathematics predicts a sixth mass extinction -...
    on September 20, 2017 at 10:43 pm

    Science DailyMathematics predicts a sixth mass extinctionScience DailyTaking this reasoning forward in time, Rothman predicts that, given the recent rise in carbon dioxide emissions over a relatively short timescale, a sixth extinction will depend on whether a critical amount of carbon is added to the oceans. That amount ...and more » […]

  • A new study is changing how scientists think...
    on September 20, 2017 at 5:08 pm

    Science MagazineA new study is changing how scientists think about Alzheimer's diseaseScience MagazineThis week, however, one of the main proponents of the hypothesis that ApoE4 exacerbates amyloid pathology stunned many of his colleagues by showing that its most toxic effects may result from a damaging immune response to a different protein: tau.and more » […]