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  • Articles: DFG German National Licenses  (7)
  • 1995-1999  (3)
  • 1965-1969  (4)
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  • Articles: DFG German National Licenses  (7)
Material
Years
Year
Keywords
  • 1
    Electronic Resource
    Electronic Resource
    Sekundärglaukom durch Iristumor (1999)
    Springer
    Der Ophthalmologe 96 (1999), S. 342-343 
    Details
    ISSN: 1433-0423
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003470050416
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Some physiological effects of measured air ions (1965)
    Springer
    International journal of biometeorology 9 (1965), S. 127-139 
    Details
    ISSN: 1432-1254
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geography , Physics
    Description / Table of Contents: Zusammenfassung Ein Apparat zur Erzeugung dosierbarer Mengen Luftionen wird beschrieben. Applikationsversuche wurden mit Ratten durchgeführt, von denen nur die Nasenlöcher der ionisierten Luft exponiert wurden. Die wirkliche Ionendosis wurde aus dem gesamten Ionenstrom unddem elektrischen Stromfluss durch das Tier in die Erde berechnet. Die vorlÄufigen Ergebnisse zeigten, dass pos. und neg. Luftionen zur Anregung der Herzschlagfolge und der Atemfrequenz führten. Die dazu erforderliche Dosis war bei einzelnen Ratten verschieden.
    Abstract: Resume On décrit ici un appareil permettant d'émettre des quantités mesurables d'ions. On l'a utilisé sur des rats dont seules les narines étaient exposées à l'air ionisé.La dose véritable d'ions fut calculée en partant du courant d'ions total et du flux électrique passant de l'animal à la terre. Les résultats préliminaires montrent que les ions aussi bien positifs que négatifs accélèrent les pulsations du coeur et la respiration. La dose nécessaire à cela était pourtant différente selon les individus.
    Notes: Abstract An apparatus constructed for the generation and administration of measured air ion dosage is described. Experiments were performed on rats in which only the nostrils were exposed to the ionized air. Measurement of total ion current and of the electrical current to ground through the animal provided knowledge of the actual ion dosage. Initial experiments indicated that both positive and negative air ion treatments tended to stimulate heartbeat and respiratory frequencies. However the ion dosage per rat was subject to individual variability.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02188468
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Some physiological effects of air ion treatment without ion inhalation (1965)
    Springer
    International journal of biometeorology 9 (1965), S. 141-147 
    Details
    ISSN: 1432-1254
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geography , Physics
    Description / Table of Contents: Zusammenfassung In einer vorausgegangenen Arbeit wurde über Experimente berichtet, in denen nur die Nasenlöcher von Ratten ionisierter Luft ausgesetzt waren.Hier wurden die Ergebnisse von Ähnlichen Experimenten zusammengestellt,in denen nur die Umgebung der Nase von Ratten (enthaart) der ionisierten Luft ausgesetzt war und nicht die Atmung. Die Herzfrequenz blieb bei Einwirkung neg. Luftionen unverÄndert,bei Einwirkung pos. Luftionen war sie verlangsamt. Die Atemfrequenz blieb unbeeinflusst, es bestand jedoch die Möglichkeit einer Differenz am Ende der Behandlung mit neg. Ionen.
    Abstract: Resume Dans un mémoire précédent, on a rapporté sur des expériences faites en n'exposant que les narines de rats à de l'air ionisé.On donne ici le résultat d'essais semblables effectués en n'exposant que les alentours (rasés) des narines de rats à de l'air ionisé, mais à l'exclusion de l'air respiré. Les pulsations du coeur restèrent inchangées dans le cas d'ions négatifs, elles furent ralenties par des ions positifs. La respiration est restée la mÊme bien qu'une petite différence soit possible à la fin du traitement par ions négatifs.
    Notes: Abstract A companion paper describes experiments in which only the nostrils of rats were exposed to ionized air. This paper gives results obtained from experiments similar, except that the bridge of the animal's nose was exposed to ions but inhalation of the ionized atmosphere was prevented. The heart rate was unaffected by negative air ion exposure, positive air ions caused depressed heartrate.Respiration rate was generally unaffected by ions although there was a possible final difference under negative air ion treatment.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02188469
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Some effects of air ions on the activity of rats (1966)
    Springer
    International journal of biometeorology 10 (1966), S. 39-46 
    Details
    ISSN: 1432-1254
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geography , Physics
    Description / Table of Contents: Zusammenfassung Ein Kanalsystem zum Durchfluss von Luft bekannter Ionenkonzentration wurde eingerichtet. Angeschlossen war eine Kammer mit einem beweglichen dielektrischen Boden, der die Registrierung der Aktivität von Ratten ermöglichte. Neben der motorischen Aktivität wurden 6 andere Verhaltensformen der Tiere registriert.Die niedrigste Ionenkonzentration war am wirksamsten zur Anregung der Aktivität. Neben der Ionenkonzentration in der Kammer wurde der von den Tieren eingeatmete Ionenstrom gemessen; er variierte stark von Tier zu Tier.
    Abstract: Resume On a construit un canal dans lequel il est possible de faire circuler de l'air dont la concentration en ions est contrôlable. On y a adjoint une cellule dont le sol est constitué par un diélectrique flexible permettant de déceler électriquement l'activité de petits animaux.En exposant des rats à des concentrations ioniques variables et de polarité différente, on peut constater des effets prononcés sur le comportement des animaux. En effet, en plus de l'activité motrice, on a enregistré six autres formes de ce comportement. Ce sont les plus faibles concentrations qui produisent le plus d'effets. A part la concentration en ions à l'intérieur de la cellule, on a également mesuré la quantité d'ions absorbés par les bêtes par voie respiratoire. Cette quantité varie fortement d'un individu à l'autre.
    Notes: Abstract A duct system was arranged through which flowed air of controlled ion concentration. In series was a chamber with a flexible dielectric floor which made possible electrical detection of activity.Exposure to various ion concentrations of either polarity produced pronounced effects.In addition to gross motor activity six other behavioural parameters were recorded. The lowest ion concentration were most effective. In addition to presenting a controlled ambient ion concertration the ion current drawn by the animal was measured. This varied markedly from rat to rat.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01636119
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Peak changes in electrocardiograms of rats exposed to air ions (1966)
    Springer
    International journal of biometeorology 10 (1966), S. 101-102 
    Details
    ISSN: 1432-1254
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geography , Physics
    Notes: Abstract Electrocardiograms were obtained from rats exposed to air ions both by inhalation and by non inhalation. Progressive changes were noted in the peak heights of the P, Q, and S waves when ions were inhaled. No such changes were observed when ion exposure was by external surface contact alone.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01636125
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    Determination of the pore widths of highly porous materials with NMR microscopy (1997)
    Springer
    Fresenius' journal of analytical chemistry 357 (1997), S. 508-513 
    Details
    ISSN: 1432-1130
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The quantitative characterization of macro-porous materials with regard to pore width and pore width distribution was accomplished for the first time by using 1H-NMR microscopy in combination with suitable methods of digital image analysis. Here we present the newly developed algorithm and discuss the first experimental results. Large-pored glass filter systems filled with silicon oil as intrusion fluid were used as references. Silicates of unknown pore width were analyzed both with the new method and with Hg intrusion. NMR image data were recorded using a 3D spin echo sequence, which gave 128 slice images with a spatial resolution of 14.5 μm × 14.5 μm within each slice, with a slice-thickness of 37 μm or 48 μm. A quantitative evaluation of the 3D NMR data, with regard to pore width and pore width distribution, was done using the appropriate image processing function of the HORUS program. Individual slice evaluation was performed first, followed by an analysis of the binding elements between the slices. Pore widths of the glass filters determined using this analytical algorithm were in accordance with the manufacturer’s values, and silicate pore widths were in good agreement with the values determined by Hg intrusion.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002160050203
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    Effects of warning signals and fixation point offsets on the latencies of pro- versus antisaccades: implications for an interpretation of the gap effect (1995)
    Springer
    Experimental brain research 103 (1995), S. 287-293 
    Details
    ISSN: 1432-1106
    Keywords: Gap effect ; Express saccades ; Oculomotor ; Human
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The present study was designed to evaluate whether fixation point offsets have the same effects on the average latencies of prosaccades (responses towards target) and antisaccades (responses away from target). Gap and overlap conditions were run with and without an acoustic warning signal. The ‘gap effect’ was taken to be the difference in mean reaction time between gap and overlap trials. This effect was dramatically reduced by the presentation of the warning signal. Without this signal, fixation offsets can serve as warning signals themselves, which artifactually inflates the magnitude of the gap effect. The warning effect of fixation offsets was equivalent for pro and antisaccades. A significant gap effect is still evident with the acoustic warning signal; however, in this case it is associated primarily with prosaccades. These results replicate and extend our previous work demonstrating that, if their warning effects are controlled, the facilitatory effects of fixation point offsets are response dependent, and suggesting the existence of a component process (fixation release) which is closely linked with the processing architecture underlying target-directed saccades.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00231715
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    Paper (German National Licenses)
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