Results 221 to 230 of about 557,563 (269)

Principles of biological comparison.

Acta morphologica Neerlando-Scandinavica, 1989
The problems of comparative analyses in biology have been discussed, showing that a single comparative method does not exist. Several principles of comparison are elucidated, which include that comparisons do not have to possess a phylogenetic basis, can be horizontal or vertical, and can be genetic or nongenetic.
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A Comparison of the Paris Principles and the International Cataloguing Principles

Cataloging & Classification Quarterly, 2009
After more than forty-five years of cataloging experience with the Paris Principles and their impact on the international sharing of bibliographic data, the process of replacing them with a wider and deeper set of International Cataloguing Principles has been completed. This article compares the scope, technological context, process of decision making,
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The Comparison and Tangency Principles

2013
We introduce the comparison and the tangency principles that will be ones of the main tools employed in this book. They are obtained when writing locally a surface as the graph of a function z=u(x,y). Then the constancy of the mean curvature on the surface implies that u satisfies a second order partial differential equation of elliptic type.
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Elastography: history, principles, and technique comparison

Abdominal Imaging, 2015
Elastography is a relatively new imaging technology that creates images of tissue stiffness. It can be thought of an extension of the ancient technique of palpation but it gives better spatial localization information and is less subjective. Two main types of elastography are currently in use, strain elastography where the tissue displacement in ...
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Comparison as a Scientific Principle

1986
The foregoing considerations have shown that every new notion is in a kind of opposition to those already present, and that those already present are not uninfluenced by the new one. This leads to a comparison of the old with the new, and this comparison makes its appearance quite spontaneously even in isolated observers and thinkers.
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Distribution-free comparison of pricing principles

Insurance: Mathematics and Economics, 2001
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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A Comparison Principle and the Lipschitz Continuity for Minimizers

2001
The authors are interested in the minimizing problem \(\int_{\Omega} L(x,u,\nabla u) \,dx \to \min\) on \(\bar{u}+W^{1,q}_{0}(\Omega)\), \(L(x,z,p)\): \(\Omega \times \mathbb{R}\times \mathbb{R}^{n}\to \mathbb{R}\). Imposing only very weak assumptions (for instance no growth conditions and no differentiability properties on \(L\) are imposed), they ...
MARICONDA, CARLO, TREU, GIULIA
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Comparison principles in capillarity

1988
Introductory remarks i) Comparison of Volumes 2) The CP Principle 3) Applications I 4) Further Applications 4bis) Isolated Singularities 5 6 7 8 9 i0 ii 12 13 14 15 The Touching Principle Monotone Symmetry (MS) Gradient Bounds from Curvature Bounds I Gradient Bounds from Curvature Bounds II Barriers by Normal Perturbation Principle of n th Order ...
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Small-Gain Conditions and the Comparison Principle

IEEE Transactions on Automatic Control, 2010
The general input-to-state stability (ISS) small-gain condition for networks in a trajectory formulation is shown to be equivalent to the requirement that a discrete-time comparison system induced by the gain matrix of the network is ISS. This leads to a comparison principle, relating input-to-state stability of an artificial discrete-time system to ...
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Comparison of Principles and Practices of Study

The School Review, 1936
Academic achievement is largely dependent on the skill with which a person handles the techniques of study. He is compelled to use these procedures and devices if he would be efficient in scholastic endeavors whether in or out of school. His whole academic life turns about this pivotal point.
C. O. Mathews, Nora Toepfer
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