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  • Articles: DFG German National Licenses  (60)
  • 1
    Electronic Resource
    Electronic Resource
    The Acquisition of Autonomic Control Through Biofeedback: Some Tests of Discrimination Theory (1981)
    Oxford, UK : Blackwell Publishing Ltd
    Psychophysiology 18 (1981), S. 0 
    Details
    ISSN: 1469-8986
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine , Psychology
    Notes: Thirty-two subjects participated in 6 biofeedback training sessions to produce increases and decreases in skin conductance (SC) or heart rate (HR). Performance on control trials was examined with respect to SC and HR, as well as respiratory and somatomotor variables. The subjects also participated in 3 test sessions (on days 2, 5, and 9), which evaluated their ability to discriminate the target autonomic response, and sought to identify the bases for SC and HR discriminations. This design permitted examination of three major predictions from Brener's theory about the process which underlies the acquisition of autonomic control through biofeedback. The first prediction, that positive correlations should be obtained between control and discrimination performance throughout training, was not supported by the data. The other predictions, that control and discrimination performance both should become more specific to the target response as a function of training, were likewise not supported. On the whole, neither for SC nor for HR control was the pattern of results favorable to Brener's views.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1469-8986.1981.tb01826.x
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    The Acquisition of Autonomic Control Through Biofeedback: The Case Against an Afferent Process and a Two-Process Alternative (1981)
    Oxford, UK : Blackwell Publishing Ltd
    Psychophysiology 18 (1981), S. 0 
    Details
    ISSN: 1469-8986
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine , Psychology
    Notes: Brener has proposed a general theory of the development of voluntary control which offers as its focus an account of the process underlying the acquisition of control over autonomic responses. This account views the acquisition process as consequent to the development of the subject's ability to discriminate afferentation related to the response state to be produced and to his formulating an appropriate response image on the basis of this afferentation. The paper begins with an extensive review of biofeedback studies pertinent to the theory. This review yields little convincing evidence for Brener's views. Selected studies on the performance and the acquisition of motor skills and on the nature of the image are then examined. These suggest that the development of control of a response may rely primarily on efferent processes, with afferent processes playing, at most, a secondary role. A two-process theory of the acquisition of autonomic control is then presented. The theory proposes that, in most instances, biofeedback training leads to autonomic control through a process consisting primarily in the identification of efferent behavioural programmes already within the subject's repertoire. The theory further proposes that an afferent acquisition process such as postulated by Brener may also underlie the development of autonomic control, but only under conditions where behavioural programmes effective in controlling the target response are either unavailable or inaccessible to the subject.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1469-8986.1981.tb01828.x
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Lateralization in the Electrodermal System as a Function of Cognitive/Hemispheric Manipulations (1979)
    Oxford, UK : Blackwell Publishing Ltd
    Psychophysiology 16 (1979), S. 0 
    Details
    ISSN: 1469-8986
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine , Psychology
    Notes: Three experiments examined patterns of bilateral differences in skin conductance as a function of cognitive tasks intended to produce specific manipulations in the relative activation of the two hemispheres. Experiments 1 and 2 employed right-handed subjects, and examined the effects of Verbal (left-hemispheric) and Spatial (right-hemispheric) tasks. In both experiments response amplitudes were substantially smaller in the hand contralateral to the more activated hemisphere than in the ipsilateral hand. Experiment 2 also examined the effects of Music and Number tasks, intended to produce a similar level of activation in the two hemispheres: these tasks were not accompanied by reliable bilateral differences in electrodermal activity. Experiment 3 consisted of a replication of Experiment 2 with subjects (sinistrals) known, as a group, to exhibit little functional hemispheric specialization. In these subjects, bilateral electrodermal differences did not vary systematically as a function of tasks. These findings argue strongly for the presence of lateralized cortical influences on electrodermal activity, and their implications for psychological and neurophysiological models of electrodermal functioning are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1469-8986.1979.tb01454.x
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  • 4
    Electronic Resource
    Electronic Resource
    Deep-level transient spectroscopy study of n-type GaAs epitaxial layers grown by close-spaced vapor transport (1989)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 65 (1989), S. 1126-1129 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We have done a deep-level transient spectroscopy study of deep donor traps existing in n-type GaAs epitaxial layers grown by close-spaced vapor transport. All the samples exhibited a bulk trap having an important concentration ((approximately-greater-than)1014 cm−3), which we have noted ELCS1 and identified with the trap EL12, which was observed in vapor-phase epitaxy materials. Other bulk traps were observed in some samples, but in a weaker concentration (∼1013 cm−3). In other samples, in addition to ELCS1, two more traps were seen; their concentration increased towards the surface. One of them is probably localized near the surface; the other one (ΔEa=0.83 eV, σna=0.8×10−13 cm2) must be identified with the donor trap EL2; it is also present in the bulk, but with a lower concentration.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.343049
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    NPL superconducting linac control system (1986)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 57 (1986), S. 784-786 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: The control system for the Nuclear Physics Lab (NPL) linac is based on a Microvax II host computer connected in a star network with nine satellite computers. These satellites use single-board versions of DEC's PDP 11 processor. The operator's console uses high-performance graphics and touch-screen technology to display the current linac status and as the means for interactively controlling the operation of the accelerator.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1138865
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    Improvement of symptoms of non-allergic chronic rhinitis by local treatment with capsaicin (1991)
    Oxford, UK : Blackwell Publishing Ltd
    Clinical & experimental allergy 21 (1991), S. 0 
    Details
    ISSN: 1365-2222
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Sixteen adult patients suffering from severe chronic non-allergic rhinitis with nasal vasoconstrictor abuse for more than a year, received, under local anaesthesia, an intra-nasal spray of capsaicin (3.3 × 10−3 mol), the pungent agent in hot pepper, once weekly for 5 weeks. The subjective intensity of their nasal obstruction, rhinorrhoea and sneezing frequency were evaluated throughout the study and the vascular effects of capsaicin on the nasal mucosa were recorded by anterior rhinomanometry and laser Doppler flowmetry. Calcitonin gene-related peptide (CGRP) is a vasodilator agent present in sensory nerves and may play a major role in the vascular component of neurogenic inflammation. Therefore, the nasal mucosa content of CGRP-like immunoreaclivity (CGRP-LI) was determined by radioimmunoassay in biopsies obtained before and after the capsaicin treatment. Intra-nasal capsaicin application evoked a larger vascular response in patients with rhinitis than in controls (P〈0.05). Both nasal vascular responses and subjective discomfort following capsaicin were markedly reduced after the fifth application (P〈 0.01). In parallel, a 50% reduction of the CG RP- LI content in the nasal biopsies was observed. All symptoms were significantly improved throughout a 6 month follow-up period. No significant side-effects occurred and weaning from nasal vasoconstrictor agents was possible. Both the subjective symptom score and objective measurements of vascular reactivity suggest that repeated intra-nasal capsaicin application could be beneficial for patients with chronic rhinitis, possibly by reducing hyperreactive nasal reflexes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2222.1991.tb00852.x
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  • 7
    Electronic Resource
    Electronic Resource
    Synthesis and cytotoxic activity of new alkyl[3-(2-chloroethyl)ureido]benzene derivatives
    Amsterdam : Elsevier
    European Journal of Medicinal Chemistry 29 (1994), S. 963-966 
    Details
    ISSN: 0223-5234
    Keywords: alkyl[3-(2-chloroethyl)ureido]benzene derivative ; chloroethyl urea ; cytotoxic agent ; structure-activity relationship
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0223-5234(94)90196-1
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    Paper (German National Licenses)
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  • 8
    Electronic Resource
    Electronic Resource
    Light and electron microscopic immunolocalization of two nuclear antigens in the liver of Pleurodeles waltl using monoclonal antibodies
    Amsterdam : Elsevier
    Biology of the Cell 64 (1988), S. 343-352 
    Details
    ISSN: 0248-4900
    Keywords: Pleurodeles ; immuno-electron microscopy ; immunofluorescence ; monoclonal antibodies ; nuclear antigens
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0248-4900(88)90008-1
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  • 9
    Electronic Resource
    Electronic Resource
    The dichotomy between germ line and somatic line, and the origin of cell mortality
    Amsterdam : Elsevier
    Trends in Genetics 9 (1993), S. 7-11 
    Details
    ISSN: 0168-9525
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0168-9525(93)90065-P
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  • 10
    Electronic Resource
    Electronic Resource
    Measurement of low-level radioactivity in the Modane underground laboratory
    Amsterdam : Elsevier
    Nuclear Instruments and Methods in Physics Research Section A: 339 (1994), S. 309-317 
    Details
    ISSN: 0168-9002
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0168-9002(94)91823-6
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