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  • Articles: DFG German National Licenses  (38)
  • Electronic Resource  (38)
  • 11
    Electronic Resource
    Electronic Resource
    N-dealkylation of electronically excited coumarins by nitrobenzenes
    Amsterdam : Elsevier
    Journal of Photochemistry 32 (1986), S. 243-252 
    Details
    ISSN: 0047-2670
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0047-2670(86)87012-5
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    Paper (German National Licenses)
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  • 12
    Electronic Resource
    Electronic Resource
    Some factors influencing abusers' justification of their child abuse
    Amsterdam : Elsevier
    Child Abuse & Neglect 14 (1990), S. 337-345 
    Details
    ISSN: 0145-2134
    Keywords: Child's defiance ; Emotional distress ; Environmental stress ; Justification of abuse
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Psychology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0145-2134(90)90005-E
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    Paper (German National Licenses)
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  • 13
    Electronic Resource
    Electronic Resource
    Structure and properties of quasi-amorphous films prepared by ion beam techniques
    Amsterdam : Elsevier
    Thin Solid Films 72 (1980), S. 19-32 
    Details
    ISSN: 0040-6090
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0040-6090(80)90554-4
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    Paper (German National Licenses)
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  • 14
    Electronic Resource
    Electronic Resource
    Preparation and properties of hard i-C and i-BN coatings
    Amsterdam : Elsevier
    Thin Solid Films 96 (1982), S. 31-44 
    Details
    ISSN: 0040-6090
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0040-6090(82)90210-3
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    Paper (German National Licenses)
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  • 15
    Electronic Resource
    Electronic Resource
    Optical investigation and numerical simulation of prebreakdown in a hollow cathode pseudospark discharge
    Amsterdam : Elsevier
    Nuclear Instruments and Methods in Physics Research Section A: 294 (1990), S. 411-416 
    Details
    ISSN: 0168-9002
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0168-9002(90)90280-J
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    Paper (German National Licenses)
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  • 16
    Electronic Resource
    Electronic Resource
    Propsychotische Veränderung der binokulären Tiefeninversion durch Schlafentzug (1997)
    Springer
    Der Nervenarzt 68 (1997), S. 593-596 
    Details
    ISSN: 1433-0407
    Keywords: Schlüsselwörter Visuelle Illusionen ; Schlafentzug ; Key words Visual illusions ; Sleep deprivation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary Binocular depth inversion represents an illusion of visual perception. Such inversion does not occur in all cases, especially when objects with a higher degree of familiarity (e.g. photographs of faces) are displayed. Cognitive factors are assumed to override the binocular disparity cues of stereopsis. We tested the hypothesis that during sleep deprivation the human CNS is unable to correct the implausible perceptual information. Measurements of binocular depth inversion in perception of 3D objects were taken in sleep-deprived medical staff and healthy volunteers. The binocular depth inversion scores were highly elevated in the sleep-deprived group in comparison to the healthy volunteers. The data demonstrate a strong impairment of binocular depth inversion after sleep deprivation and support the view that sleep deprivation may be accompanied by a disorganisation of the interaction between sensory input and generation of perceptual hypotheses.
    Notes: Zusammenfassung Bei der Tiefeninversion handelt es sich um eine optische Illusion, die in Abhängigkeit vom präsentierten Objekt auftritt. Dabei wird die räumliche Tiefeninformation durch kognitive Faktoren in einem kritischen Interaktionsprozeß„überarbeitet”. In dieser Studie wird untersucht, ob durch Schlafentzug das ZNS dahingehend beeinfluß werden kann, implausible visuelle Information insuffizient zu korrigieren. In einem Tiefeninversionsparadigma wurde die Wahrnehmung von 3-D-Objekten bei nachtschichtig arbeitendem medizinischem Personal und gesunden Kontrollprobanden untersucht. Der Tiefeninversionsscore war bei den Schlafentzügigen im Vergleich zu den Kontrollprobanden deutlich erhöht. Die Daten verdeutlichen eine Beeinträchtigung der binokulären Tiefeninversion im Schlafentzug, möglicherweise hervorgerufen durch eine Störung der Interaktion zwischen visueller Perzeption (Bottom-up-Komponente) und der Generierung von Wirklichkeitshypothesen (Top-down-Komponente).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001150050167
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    Paper (German National Licenses)
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  • 17
    Electronic Resource
    Electronic Resource
    Bemerkungen zur Quantitativen Messung von Diffusionsvorgängen in Erzlagerstätten mit Hilfe der Elektronenmikrosonde (1966)
    Springer
    International journal of earth sciences 55 (1966), S. 359-365 
    Details
    ISSN: 1437-3262
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Description / Table of Contents: Abstract This paper mainly describes the following three methods of quantitative analysis of diffusion processes in ore minerals with the electron micro probe: 1. Spot analysis, whereby the electron probe is fixed on the questionable specimen part for a long time. 2. Line scanning along a distinct traverse of the specimen. 3. X-ray-scanning-picture method, which allows the photographic identification of very small chemical concentration differences in the specimen. Further, the main sources of error and the different constants of analysis, which influence the X-ray-pulse-rate, are listed.
    Abstract: Résumé Trois possibilités pour mesurer le phénomène de diffusion dans minéral métallifère avec le sonde électronique sont décrites: 1. L'analyse pointillée, ici le rayon électronique est fixé longtemps sur l'échantillon de recherche. 2. Scannig le long d'une ligne de l'échantillon. 3. Méthode de rayon X scanning-image, qui permet de recevoir les très petites différences de concentration chimique dans l'échantillon. Les erreurs principales et les faits d'analyse, qui influencent la source de rayon X essentiellement, sont résumées de plus.
    Notes: Zusammenfassung Hauptsächlich drei Möglichkeiten zur quantitativen Messung von Diflusionsvorgängen in Erzmineralien mit der Elektronenmikrosonde werden diskutiert: 1. Die Punktanalyse, bei der über eine längere Meßzeit der Elektronenstrahl starr auf die jeweilige Untersuchungsstelle gerichtet ist. 2. Das Linienscanning entlang einer Untersuchungsstrecke des Präparates. 3. Die Röntgenrasterbildmethode, die über lange Aufnahmezeiten extrem geringe Konzentrationsdifferenzen im Präparat zu erfassen gestattet. Weiterhin werden die hauptsächlichen Fehlerquellen und Analysenfakten, die die Röntgenimpulsausbeute wesentlich beeinflussen, zusammengestellt.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01765773
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    Paper (German National Licenses)
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  • 18
    Electronic Resource
    Electronic Resource
    A high resolution numerical study of Gulf of Mexico fronts and eddies (1997)
    Springer
    Meteorology and atmospheric physics 64 (1997), S. 187-201 
    Details
    ISSN: 1436-5065
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geography , Physics
    Notes: Summary The Gulf of Mexico (GOM) circulation is simulated using the DieCAST ocean model, with a horizontal resolution of 1/12° and 20 vertical layers. The results compare well with observations of both large and small scale features, including Loop Current frontal occlusions associated with frontal eddies. The simulation is carried out without any data assimilation. The frontal eddies tend to be spaced at about 90° intervals around the Loop Current, leading to a Loop Current head shaped like a square with rounded corners. The pattern rotates as the eddies circle the Loop, and frontal eddies elongate as they squeeze through the Florida Strait. Major warm core eddies separate regularly from the Loop Current and propagate to the western GOM. Old warm core eddies in the western Gulf dissipate through bottom drag effects, which also generate cyclonic parasitic eddies. Newly arrived warm core eddies merge with old ones in the western GOM. Recently separated elongated Loop Current eddies can rotate and reattach temporarily to the Loop Current. The barotropic flow component develops eddies between the main separated warm core eddy and the Loop Current due to eastward dispersion, as the main eddy itself propagates westward into the Gulf.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01029692
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    Paper (German National Licenses)
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  • 19
    Electronic Resource
    Electronic Resource
    Toxicity of Organophosphorus Insecticides in the Zebra Mussel, Dreissena polymorpha P. (1996)
    Springer
    Archives of environmental contamination and toxicology 30 (1996), S. 373-378 
    Details
    ISSN: 1432-0703
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Notes: Abstract. The 96-h toxicity of four organophosphates (thiometon, disulfoton, malathion, and demeton-S-methyl, the oxygen analogue of thiometon) in the freshwater bivalve mollusc Dreissena polymorpha was tested using different nominal concentrations ranging between 6 and 50 mg/L. No mortalities were observed in mussels exposed to malathion and demeton-S-methyl (26 mg/L and 6 mg/L, respectively), and at the lowest concentrations of thiometon and disulfoton (6 and 10 mg/L, respectively). At higher thiometon and disulfoton concentrations, mortalities occurred. At the highest concentrations of 50 mg thiometon/L and 30 mg disulfoton/L, mussel mortalities of 88 and 93%, respectively, were determined. Organophosphate concentrations of up to a factor 10 times higher than in the ambient water were found in exposed mussels, irrespective of whether they were alive or dead. The search for organophosphate metabolites via GC/MS analysis of mussel tissue extracts was negative, suggesting lacking or low oxidative activation of the insecticides used. The mollusc is highly resistant to toxic effects of organophosphate insecticides and their biological active oxygen analogues.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002449900050
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  • 20
    Electronic Resource
    Electronic Resource
    Mortality of birds of prey following field application of granular carbofuran: A case study (1995)
    Springer
    Archives of environmental contamination and toxicology 29 (1995), S. 140-145 
    Details
    ISSN: 1432-0703
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Notes: Abstract The death of buzzards (Buteo buteo) found in fodder and sugar beet fields treated with granular carbofuran was investigated. To determine if there was a causal relationship between carbofuran treatment and bird mortality, earthworms of a specific fodder beet field as well as the crop contents of dead buzzards were analyzed for carbofuran contamination. Earthworms of the fodder beet field contained carbofuran concentrations up to 3.2 mg/kg, while remains of earthworms and carbofuran were detected in all buzzard crop contents. The carbofuran concentrations found in the earthworms as well as in the crops of the buzzards corroborate the suspicion that the buzzards found on fodder and sugar beet fields treated with granular carbofuran had died of secondary poisoning with carbofuran via contaminated earthworms.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00213099
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