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  • 1
    Electronic Resource
    Electronic Resource
    Pertinence of nuclear envelope nucleoside triphosphatase activity to ribonucleic acid transport (1980)
    s.l. : American Chemical Society
    Biochemistry 19 (1980), S. 2748-2756 
    Details
    ISSN: 1520-4995
    Source: ACS Legacy Archives
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/bi00553a033
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  • 2
    Electronic Resource
    Electronic Resource
    Schwoebel-Ehrlich barrier: from two to three dimensions (2002)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 80 (2002), S. 3295-3297 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The Schwoebel-Ehrlich barrier—the additional barrier for an adatom to diffuse down a surface step—dictates the growth modes of thin films. The conventional concept of this barrier is two dimensional (2D), with the surface step being one monolayer. We propose the concept of a three-dimensional (3D) Schwoebel-Ehrlich barrier, and identify the 2D to 3D transition, taking aluminum as a prototype and using the molecular statics method. Our results show that: (1) substantial differences exist between the 2D and 3D barriers; (2) the transition completes in four monolayers; and (3) there is a major disparity in the 3D barriers between two facets; further, alteration of this disparity using surfactants can lead to the dominance of surface facet against thermodynamics. © 2002 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1475774
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  • 3
    Electronic Resource
    Electronic Resource
    Destabilization of dislocation dipole at high velocity (2001)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 79 (2001), S. 3621-3623 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Under mechanical deformation of very high strain rates, it is expected that dislocations may move very fast (being subsonic, transonic, or even supersonic). As a result, two dislocations may approach each other at high velocities. Our earlier analyses of linear elasticity indicate that a dipole is destabilized when the approaching velocity is high enough—even below the speed of sound. In this letter, using the molecular dynamics method, we demonstrate that a dipole indeed can be destabilized above a critical velocity, and stable below that. © 2001 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1421425
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  • 4
    Electronic Resource
    Electronic Resource
    Photoaffinity labeling of the major nucleoside triphosphatase of rat liver nuclear envelope (1984)
    s.l. : American Chemical Society
    Biochemistry 23 (1984), S. 3501-3507 
    Details
    ISSN: 1520-4995
    Source: ACS Legacy Archives
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/bi00310a018
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  • 5
    Electronic Resource
    Electronic Resource
    Current Oscillation of Piezoelectric–Ceramic Vibrators Driven by a Constant High Electric Field (2005)
    Oxford, UK : Blackwell Science Inc
    Journal of the American Ceramic Society 88 (2005), S. 0 
    Details
    ISSN: 1551-2916
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Current oscillation will occur when a piezoelectric ceramic vibrator is driven by a high electric field. The mechanism of current oscillation is discussed, based on the results of the present experiment. Ring-shaped lead zirconate titanate (PZT) piezoelectric vibrators are driven by a 5.65 V electric field with a fixed frequency of slightly less than resonance, to form an oscillating current. The sample current, temperature, and phase between the driven electric field and sample current are recorded. The resonance frequency of PZT rings shifts in the direction of low frequency under a high electric field due to the heat produced by dissipated power, and then shifts back due to the effects of aging, which results in current oscillation. The oscillation phenomenon is explained according to the production of strong internal stresses due to abrupt change in temperature, and then, aging process through the rearrangement of domains to relieve various stresses.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1551-2916.2005.00125.x
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  • 6
    Electronic Resource
    Electronic Resource
    Evidence for almost point-like behavior of off-shell particles in field theory
    Amsterdam : Elsevier
    Physics Letters B 58 (1975), S. 328-332 
    Details
    ISSN: 0370-2693
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0370-2693(75)90666-8
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  • 7
    Electronic Resource
    Electronic Resource
    Chaos, ineffectiveness, and the contrast between classical and quantal physics (1989)
    Springer
    Foundations of physics 19 (1989), S. 57-76 
    Details
    ISSN: 1572-9516
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Classical and quantal physics are fundamentally different in the way that each deals with complexity. We examine both the algorithmic and the computational aspects of this difference. Any comprehensive deterministic theory must contain a certain ineffectiveness in producing long-term predictions of the future, whereas a probabilistic theory is not so handicapped. The relevance of these considerations to chaos is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00737766
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  • 8
    Electronic Resource
    Electronic Resource
    Amorphous structure in laser clad Ni-Cr-Al coating on Al-Si alloy (2000)
    Springer
    Journal of materials science 19 (2000), S. 1193-1196 
    Details
    ISSN: 1573-4811
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1006727730339
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  • 9
    Electronic Resource
    Electronic Resource
    In vitro release of α1-acid glycoprotein RNA sequences shows fidelity with the acute phase response in vivo (1986)
    Springer
    Molecular biology reports 11 (1986), S. 163-172 
    Details
    ISSN: 1573-4978
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The acute phase reaction of rat liver to subcutaneous turpentine challenge results in a 20- to 100-fold increase in α1-acid glycoprotein (αAGP) mRNA. We utilized this response to establish conditions appropriate for study of RNA transport in vitro using hybridization with 32P-labeled exon and intron αAGP sequences. Contamination of nuclear preparations by membrane-absorbed cytoplasmic RNA was eliminated by detergent-rinsing. The in vitro incubation conditions that most reflected the in vivo state required RNase inhibitor (purified from placenta), polyvinylpyrrolidone to prevent nuclear swelling, and addition of ATP. Under these circumstances, αAGP sequences were transported only from turpentine-stimulated preparations, were found only in poly(A) + RNA, and were the same size as authentic cytoplasmic mRNA. Omission of polyvinylpyrrolidone resulted in release of some αAGP sequences in smaller, more heterogeneous poly(A)-RNA, and leakage of some αAGP sequences was observed from control preparations. Omission of ATP resulted in restriction of mature αAGP mRNA to the nucleus. In contrast to αAGP mRNA, transport of albumin mRNA was decreased 3-4X in turpentine-treated preparations. The largest αAGP intron was not found in RNA transported from treated nuclei in complete medium. The intron-containing fragments remained in the nucleus, largely in poly(A)- RNA of a size consistent with free intron. Some hybridization of intron sequences was observed with cytoplasmic and nuclear membrane-associated poly(A) + RNA preparations which may represent 3′-processing catabolites; leakage of these sequences was considerably greater in the absence of PVP. On the basis of densitometric estimates, a 5-fold increase in the amount of αAGP exon sequences was observed in nuclear RNA, comparing treated with control animals, but transport of αAGP exon sequences was detectable only from treated nuclei, indicating at least a 50-fold increase in abundance of αAGP sequences. This suggests that a selective gating mechanism may be operative at the level of post-transcriptional nucleocytoplasmic transport during induction of αAGP in the acute phase response.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00419737
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  • 10
    Electronic Resource
    Electronic Resource
    Modulation of RNA transport by polyvinylpyrrolidone (1984)
    Springer
    Molecular biology reports 10 (1984), S. 105-107 
    Details
    ISSN: 1573-4978
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract A number of studies have documented substantial loss of nuclear protein during aqueous nuclear isolation procedures. This loss can, to some extent, be counteracted by addition of impermeable macromolecules like polyvinylpyrrolidone, which prevent nuclear swelling. While nucleic acids appear to be much less susceptible to leakage during isolation, the effects of these additives on RNA release duringin vitro incubation have not been examined. Here we show that addition of polyvinylpyrrolidone results in significant decreases in RNA transport; inhibition becomes maximal at 50–75 μM addition.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00776982
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