Results 341 to 350 of about 358,601 (360)
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Standardization of Poliovirus Neutralizing Antibody Tests
Clinical Infectious Diseases, 1984Recently the Forum for Advancement of Immunization Research sponsored a Collaborative Study on Poliovirus Antibody Titration. Twenty laboratories from 12 countries participated. There were considerable differences in detail of test performance and test results among laboratories.
Paul Albrecht +3 more
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Tests for the structure of the neutral current
Physical Review D, 1977The isospin and V,A structure of the weak neutral current may be determined from a study of the charge distribution of pions in neutrino and antineutrino reactions. Qualitative and quantitative relations are presented which are independent of any dynamical models.
D. Wyler, L. Wolfenstein
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A reexamination of Mishkin's neutrality test
Journal of Economics and Business, 1995Abstract Mishkin's 1982 paper is one of the most widely cited papers in empirical macroeconomics. His finding that anticipated money growth is not neutral in the US casts doubt on the policy ineffectiveness proposition. However, recent advances in econometrics suggest that Mishkin's model may be misspecified, thus raising questions concerning his ...
Frederick H. Wallace, Gary L. Shelley
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A neutral sampling formula for multiple samples and an ‘exact’ test of neutrality
Ecology Letters, 2007AbstractAs the utility of the neutral theory of biodiversity is increasingly being recognized, there is also an increasing need for proper tools to evaluate the relative importance of neutral processes (dispersal limitation and stochasticity). One of the key features of neutral theory is its close link to data: sampling formulas, giving the probability
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Journal of Monetary Economics, 1986
Abstract This paper derives and implements a robust test of the short-run neutrality of anticipated policy that is valid when the information set used to form expectations is incorrectly specified and the effect of unanticipated policy on deviations of output from the natural rate varies over time.
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Abstract This paper derives and implements a robust test of the short-run neutrality of anticipated policy that is valid when the information set used to form expectations is incorrectly specified and the effect of unanticipated policy on deviations of output from the natural rate varies over time.
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Neutralization Tests with Certain Neurotropic Viruses
The Journal of Immunology, 1944Abstract The relative lack of sensitivity of intracerebral virus-neutralization tests in mice, and their consequent limitations when applied to the investigation of certain epidemiologic or immunologic problems, is generally recognized. Inasmuch as the ability to detect or quantitate neutralizing antibodies in a serum is ...
Hilary Koprowski, Edwin H. Lennette
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Testing the generalized neutrality hypothesis
Theoretical Population Biology, 1979Abstract Various tests of the hypothesis of selective neutrality based on gene frequency are now available. These tests take as null hypothesis the concept of “strict neutrality”: all new mutants are required to be selectively identical to each other.
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Neutralization tests of a mN FEEP thruster
32nd Joint Propulsion Conference and Exhibit, 1996Neutralization of the ion beam produced by a FEEP thruster is in principle a task similar to the well-known problem of neutralizing a traditional ion rocket.On the other hand, the neutralization of a small, micronewton thrust level FEEP poses several practical problems.
GENOVESE A +3 more
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Neutral mutation hypothesis test [PDF]
Nature, 1991 Masatoshi Nei, Thomas S. Whittam
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The Neutralization Test in Lymphogranuloma Venereum
Journal of Infectious Diseases, 1940The neutralization test has proven a highly important aid in the recognition and epidemiological study of numerous virus diseases. In lymphogranuloma venereum as well, this test should be distinctly valuable, especially in those cases where it is not possible or practicable to perform the Frei test or where there is anergy or a doubtful skin reaction ...
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