Results 251 to 260 of about 492,016 (299)
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Fertility and Sterility, 1981
Ninety-six males underwent vasovasostomy from 1976-1978. Seventy-six of 83 patients who returned for a semen analysis demonstrated sperm in the ejaculate for a 92% surgical patency rate. Thirty-two of 71 eligible patients initiated a pregnancy for a functional success rate of 45%.
R, Kessler, F, Freiha
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Ninety-six males underwent vasovasostomy from 1976-1978. Seventy-six of 83 patients who returned for a semen analysis demonstrated sperm in the ejaculate for a 92% surgical patency rate. Thirty-two of 71 eligible patients initiated a pregnancy for a functional success rate of 45%.
R, Kessler, F, Freiha
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Macroscopic variables of the macroscopic system and the theory of measurement
Physical Review A, 1987Macroscopic variables of the macroscopic system lose the quantum fluctuations in the macroscopic limit. A separate Hilbert space corresponds to each c-number value of these macroscopic variables. The measuring process in quantum mechanics consists of recording these c-number values and amounts to determination of the Hilbert space to which the system ...
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PAMM, 2003
AbstractWe present a continuum‐mechanically based model to describe erosion/deposition, growth/atrophy and remodeling phenomena. The considered model is based on the thermodynamically consistent Theory of Porous Media. The mixture is assumed to consist of a solid constituent, a fluid constituent and an abrasive constituent containing the fluidized ...
Steeb, H., Diebels, Stefan
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AbstractWe present a continuum‐mechanically based model to describe erosion/deposition, growth/atrophy and remodeling phenomena. The considered model is based on the thermodynamically consistent Theory of Porous Media. The mixture is assumed to consist of a solid constituent, a fluid constituent and an abrasive constituent containing the fluidized ...
Steeb, H., Diebels, Stefan
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Biomacromolecules, 2007
Presently there is great interest in the construction of nanostructures from DNA fragments. Here we report the preparation of much larger helical textures with different shapes from pure DNA fragments. We have observed them while preparing crystals of the dodecamer d(AAAAAATTTTTT), which only contains adenine and thymine.
Juan A, Subirana +3 more
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Presently there is great interest in the construction of nanostructures from DNA fragments. Here we report the preparation of much larger helical textures with different shapes from pure DNA fragments. We have observed them while preparing crystals of the dodecamer d(AAAAAATTTTTT), which only contains adenine and thymine.
Juan A, Subirana +3 more
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On the Decoherence of Macroscopic Bodies
Foundations of Physics Letters, 2006We consider the field, either gravitational or electric, associated to a macroscopic source. Tracing over the field's degrees of freedom we show that the reduced density matrix diagonalizes on the position basis for macroscopic separations. The non diagonal reduced density matrix elements are quenched by a factor which is independent of the body being ...
CARAZZA, Bruno +1 more
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Is macroscopic quantum coherence incompatible with macroscopic realism?
Il Nuovo Cimento B, 1995The proposal by Leggett and Leggettet al. (Suppl. Prog. Theor. Phys.,69 (1980) 80;Directions in Condensed Matter Physics, edited byG. Grinstein andG. Mazenko (World Scientific, Singapore) 1986, p. 189;Jpn. J. Appl. Phys.,26 (1987) 1986,Suppl. 26–3;Phys. Rev.
Chiatti L, Cini M, SERVA, Maurizio
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A macroscopic formulation of electromagnetophoresis
The Bulletin of Mathematical Biophysics, 1968A macroscopic conservation equation is derived for electromagnetophoresis of a dilute suspension. The governing equation and auxiliary conditions are formulated for transport in a rectangular cell, these being reduced to standard form by dimensional methods.
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The Macroscopic Theory of Irreversibility
Reports on Progress in Physics, 1956This article reviews certain aspects of irreversible thermodynamics. There are two main parts. The first part considers the Onsager theory of the approach to equilibrium of isolated systems under non-uniform conditions. The whole system is treated as being made up of macroscopic but small sub-systems, which are in `local equilibrium' in the sense that ...
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A macroscopic view of self-replication
Proceedings of the IEEE, 2004In 1953, Crick and Watson published their landmark paper revealing the detailed structure of the DNA double helix. Several years earlier, von Neumann embedded a very complex configuration, a universal interpreter-copier, into a cellular array. Astoundingly, the structure of this configuration, able to realize the self-replication of any computing ...
Mange, D. +3 more
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Superposition and macroscopic observation
Synthese, 1974The principle of superposition has long plagued the quantum mechanics of macrosopic bodies. Macroscopic objects are taken to be composed of a large number of interacting constituents, each in its interaction with others governed by the laws of quantum mechanics.
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