Results 311 to 320 of about 7,252,224 (344)
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Batch Variations

Dermatologic Clinics, 1990
One of the basic principles in the investigation of suspected contact dermatitis is always to test with the patient's "own" product or chemical, the one to which he or she was actually exposed. An equally basic second principle is not to rely solely on a positive test reaction.
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Variations on Dynamic Variations

Human Development, 2002
Steenbeek, H.W., Van Geert, P. L. C.
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Needle Variation

Journal of Mathematical Sciences, 2002
The paper investigates the notion of a needle variation and examines the behavior of the phase trajectory depending on the parameters of the variation for measurable and locally bounded controls following [\textit{L. S. Pontryagin}, \textit{V. G. Boltyanskiĭ}, \textit{R. V. Gamkrelidze} and \textit{E. F.
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Symmetric Variation

2020
The author deals with functions \(f: R\to R\) (\(R\) --- the real line). Let \(E\subset R\) and let \(\delta\) be a positive function on \(E\). Then \[ S_ \delta(f,E)=\sup\sum^ n_{i=1}| f(x_ i+h_ i)-f(x_ i-h_ i)|, \] where the supremum is with regard to all sequences \(\{[x_ i- h_ i, x_ i+h_ i]\}\) of nonoverlapping intervals with centers \(x_ i\in E\)
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Epigenetic Variation

2010
Epigenetics is a fast moving field and our understanding of epigenetic mechanisms has dramatically improved in recent decades. We present the role that epigenetics plays in genomic control in humans; the molecular basis of this control and the role that epigenetic aberrations play in the aetiology of human disease.
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Distinguishing physiologic variation from analytic variation

Journal of Chronic Diseases, 1970
WHEN REPEATED measurements of an individual’s blood chemistry or other physiologic variable are made over an extended period of time, the problem arises of separating long-term analytic or ‘laboratory’ deviation from the truly physiologic component of the total observed variation.
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Variational sequences

2008
This chapter is a review on the topic of variational sequences. Here for the first time all the most important approaches to the subject are covered, and an extensive bibliography is provided. Variational sequences are an important tool in the variational analysis of classical and quantum theories of mechanics and fields.
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Variation in the reversibility of evolution

Nature, 2000
Henrique Teotónio, Michael R. Rose
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