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  • 1
    Electronic Resource
    Electronic Resource
    The increasing scope of training and development competency (2002)
    Bingley : Emerald
    Benchmarking 9 (2002), S. 43-61 
    Details
    ISSN: 1463-5771
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Technology
    Notes: Organizations find it increasingly difficult to stay competitive in today's global economy. Leaders in the workplace are using benchmarking, competency, competency models, and competency studies to help make human resource decisions, such as hiring, training, and promotions. In training and development (T&D), it is helpful for competencies to focus on knowledge, skills and/or abilities. But neither the field of T&D, nor competency within the field, is static. Reported here is a careful review of literature showing the trends in competency over the past three decades in the training and development field, and provides some speculation regarding competencies needed in the near future for professionals in T&D. Two of the most apparent changes in T&D are the shift to performance improvement and the use of technology. Thus the skills, knowledge, and abilities involving these areas will continue to become increasingly necessary for T&D professionals.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1108/14635770210418579
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  • 2
    Electronic Resource
    Electronic Resource
    Neue Quecksilberluftpumpen (1896)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 35 (1896), S. 58-60 
    Details
    ISSN: 1618-2650
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01415243
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  • 3
    Electronic Resource
    Electronic Resource
    Synthesis of 5,7-dimethoxyindole (1970)
    s.l. : American Chemical Society
    Journal of medicinal chemistry 13 (1970), S. 1248-1249 
    Details
    ISSN: 1520-4804
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jm00300a066
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  • 4
    Electronic Resource
    Electronic Resource
    Response to "Comment on ‘A Lyapunov functional for stability of ideal magnetohydrodynamic systems in arbitrary motion' " [Phys. Plasmas 5, 1566 (1998)] (1998)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 5 (1998), S. 1568-1571 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: In this response I will try to clarify the issues brought forward by this comment (hereafter referred to as H&I). © 1998 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.872817
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  • 5
    Electronic Resource
    Electronic Resource
    Nonlinear propagation of self-guided ultra-short pulses in ionized gases (2000)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 7 (2000), S. 210-230 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The nonlinear propagation regimes of femtosecond pulses in noble gases and air are analyzed from an extended nonlinear Schrödinger equation coupled with the inertial response of an electron plasma created by multiphoton process and avalanche ionization. By means of integral relations supplemented by two variational approaches, it is shown that the electron density produced by photo-ionization defocuses the beam and arrests the self-focusing promoted by the Kerr response of the gas, so that a balance between both these effects can be realized for incident pulses with sufficiently high input power. Theoretical descriptions of self-guided beams emphasize the distortions caused by multiphoton sources in the temporal pulse profiles and they are confronted with direct numerical simulations. Dissipative effects as multiphoton absorption and the delayed Kerr response induced by air are finally discussed. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.873816
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  • 6
    Electronic Resource
    Electronic Resource
    A Lyapunov functional for stability of ideal magnetohydrodynamic systems in arbitrary motion (1997)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 4 (1997), S. 1201-1212 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The stability properties of an ideal magnetohydrodynamic (MHD) fluid (compressible) in an arbitrary state of motion is explored. A stability condition is formulated in general terms based on the concept of a Lyapunov functional for the system which can be taken to be the Hamiltonian. Special consideration is given to stationary systems where the fluid is bounded by a surface on which the normal component of the fluid velocity is zero. For this case a necessary and sufficient condition for stability in terms of an energy principle is formulated. This can be considered to be a generalization of the classic MHD energy principle. A comparison to normal mode solutions is made. Systems being subjected to forced oscillations around a static equilibrium that may be unstable are of prime interest for dynamic stabilization problems. The present theory also includes results relevant to this type of system, although no details of such problems are presented. The emphasis is on general theory, however, one example of an ordinary fluid which is rotating is discussed in order to get a better understanding of the theoretical results. © 1997 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.872300
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  • 7
    Electronic Resource
    Electronic Resource
    Self-focusing dynamics of nonlinear waves in media with parabolic-type inhomogeneities (1997)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 4 (1997), S. 1227-1237 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The possibility of accelerating the self-focusing dynamics of light beams in nonlinear and dispersive media with either a constant or a weakly oscillating parabolic density profile is investigated. It is shown that the self-compression of wave packets, that freely self-focus in homogeneous media, can be enhanced by the action of appropriate parabolic inhomogeneities, whose lensing influence shortens the focal time of the wave. A similar property also occurs when the scalar envelope of a nonlinear waveform interacts with a uniform external magnetic field. The motion of light beamlets, originating from the filamentation instability of an incident beam, is analytically described for inhomogeneous media with focusing and defocusing density profiles. © 1997 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.872302
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  • 8
    Electronic Resource
    Electronic Resource
    Multisplitting and collapse of self-focusing anisotropic beams in normal/anomalous dispersive media (1996)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 3 (1996), S. 824-843 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Three-dimensional self-focusing light pulses in normal and anomalous dispersive media are investigated by means of a waveguide instability analysis, a Lagrangian approach, and a quasi-self-similar analysis. In the case of normal dispersion for which no localized ground state exists, it is shown that a high-intensity elongated beam cannot self-similarly collapse. Even when the incident beam power widely exceeds the critical power for a two-dimensional self-focusing, the beam is shown to split into multiple cells that ultimately disperse when their individual mass lies below the critical power. The mechanism underlying this fragmentation process is described in terms of a stretching of the self-focusing beam along its propagation axis. The focal point, where the splitting process develops, is identified. Finally, it is shown that the longitudinal dynamical motions of self-focusing elongated pulses also play an important role in an anomalous dispersive medium. In this case, unlike the former one, the beam self-contracts along its propagation axis and reconcentrates its shape back toward the center where it ultimately collapses in a finite time. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.871783
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  • 9
    Electronic Resource
    Electronic Resource
    Generalized analysis of quasi-steady-state and quasi-transient measurements of carrier lifetimes in semiconductors (1999)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 86 (1999), S. 6218-6221 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Recently, a simple yet powerful carrier lifetime technique for semiconductor wafers has been introduced that is based on the simultaneous measurement of the light-induced photoconductance of the sample and the corresponding light intensity [Appl. Phys. Lett. 69, 2510 (1996)]. In combination with a light pulse from a flash lamp, this method allows the injection level dependent determination of the effective carrier lifetime in the quasi-steady-state mode as well as the quasi-transient mode. For both cases, approximate solutions (those for steady-state and transient conditions) of the underlying semiconductor equations have been used. However, depending on the actual lifetime value and the time dependence of the flash lamp, specific systematic errors in the effective carrier lifetime arise from the involved approximations. In this work, we present a generalized analysis that avoids these approximations and hence substantially extends the applicability of the quasi-steady-state and quasi-transient methods beyond their previous limits. © 1999 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.371633
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  • 10
    Electronic Resource
    Electronic Resource
    Molecular Polymorphism of Head Acetylcholinesterase from Adult Houseflies (Musca domestica L.) (1987)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of neurochemistry 49 (1987), S. 0 
    Details
    ISSN: 1471-4159
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract: Acetylcholinesterase (AChE) from housefly heads was purified by affinity chromatography. Three different native forms were separated by electrophoresis on poly-acrylamide gradient gels; Two hydrophilic forms presented apparent molecular weights of 75,000 (AChE1) and 150,000 (AChE2). A third component (AChE3) had a migration that depended on the nature and concentration of detergents. In the presence of sodium deoxycholate in the gel, AChE3 showed an apparent molecular weight very close to that of AChE2. Among the three forms, AChE3 was the only one found in purified membranes. The relationships among the various forms were investigated using reduction with 2-mercaptoethanol or proteolytic treatments. Such digestion converted purified AChE3 into AChE2 and AChE1, and reduction of AChE3 and AChE2 by 2-mercaptoethanol gave AChE1, in both cases with a significant loss of activity. These data indicate that the three forms of purified AChE may be classified as an active hydrophilic monomeric unit (G1) plus hydrophilic and amphiphilic dimers. These two components were termed G2sand G2m, where “s” refers to soluble and “m” to membrane bound.).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1471-4159.1987.tb01014.x
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