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Null Value

Known as: None, Null 
A special value that may be stored in some database columns to represent an unknown, missing, not applicable, or undefined value.(from Free On-Line… Expand
National Institutes of Health

Papers overview

Semantic Scholar uses AI to extract papers important to this topic.
Review
2010
Review
2010
Bayesian data analysis.
  • J. Kruschke
  • Wiley interdisciplinary reviews. Cognitive…
  • 2010
    • Corpus ID: 7101807
Bayesian methods have garnered huge interest in cognitive science as an approach to models of cognition and perception. On the… Expand
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Review
2008
Review
2008
Simultaneous inference in general parametric models.
Simultaneous inference is a common problem in many areas of application. If multiple null hypotheses are tested simultaneously… Expand
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Highly Cited
2007
Highly Cited
2007
High-Resolution Profiling of Histone Methylations in the Human Genome
Histone modifications are implicated in influencing gene expression. We have generated high-resolution maps for the genome-wide… Expand
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Highly Cited
2004
Highly Cited
2004
Linear Models and Empirical Bayes Methods for Assessing Differential Expression in Microarray Experiments
  • G. Smyth
  • Statistical applications in genetics and…
  • 2004
    • Corpus ID: 564309
The problem of identifying differentially expressed genes in designed microarray experiments is considered. Lonnstedt and Speed… Expand
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Highly Cited
2004
Highly Cited
2004
Micro-Checker: Software for identifying and correcting genotyping errors in microsatellite data
DNA degradation, low DNA concentrations and primer-site mutations may result in the incorrect assignment of microsatellite… Expand
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Highly Cited
1998
Highly Cited
1998
Defective LPS signaling in C3H/HeJ and C57BL/10ScCr mice: mutations in Tlr4 gene.
Mutations of the gene Lps selectively impede lipopolysaccharide (LPS) signal transduction in C3H/HeJ and C57BL/10ScCr mice… Expand
Review
1997
Review
1997
p53, the Cellular Gatekeeper for Growth and Division
The author would like to thank Maureen Murphy, Stuart Lutzker, and Deborah Freedman for critical input and advice. The author… Expand
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Highly Cited
1993
Highly Cited
1993
The C. elegans heterochronic gene lin-4 encodes small RNAs with antisense complementarity to lin-14
lin-4 is essential for the normal temporal control of diverse postembryonic developmental events in C. elegans. lin-4 acts by… Expand
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Highly Cited
1992
Highly Cited
1992
Testing the null hypothesis of stationarity against the alternative of a unit root: How sure are we that economic time series have a unit root?
The standard conclusion that is drawn from this empirical evidence is that many or most aggregate economic time series contain a… Expand
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Highly Cited
1979
Highly Cited
1979
The file drawer problem and tolerance for null results
For any given research area, one cannot tell how many studies have been conducted but never reported. The extreme view of the… Expand
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