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  • 1990-1994  (16)
  • 1985-1989
  • 1915-1919
  • 1994  (6)
  • 1992  (4)
  • 1990  (6)
  • 1
    Electronic Resource
    Electronic Resource
    The value of serial ultrasounds in the management of recurrent uterine scar rupture (1994)
    Oxford, UK : Blackwell Publishing Ltd
    BJOG 101 (1994), S. 0 
    Details
    ISSN: 1471-0528
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1471-0528.1994.tb13163.x
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  • 2
    Electronic Resource
    Electronic Resource
    Improved stability of thin cobalt disilicide films using BF2 implantation (1992)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 61 (1992), S. 2920-2922 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The thermal stability of ∼50 nm CoSi2 and TiSi2 thin films after BF2+ implantation was investigated. The electrical characteristics of silicide films were evaluated after high temperature annealing as a function of implanted BF2+ energy. It was observed that implantation with a projected range near the silicide/silicon interface produced the most stable films. The silicide/silicon interface morphology was investigated using scanning tunneling microscopy, where with appropriate BF2 implantation conditions, smoother interfaces were seen after high temperature annealing. The stabilizing effect is attributed to fluorine segregation into the silicide grain boundaries and at the silicide/silicon interface.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.108022
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  • 3
    Electronic Resource
    Electronic Resource
    Water availability in a restored soil (1992)
    Oxford, UK : Blackwell Publishing Ltd
    Soil use and management 8 (1992), S. 0 
    Details
    ISSN: 1475-2743
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract. The water contents of a restored and an undisturbed soil were monitored over two ‘dry’ growing seasons in order to examine the differences in crop water availability from different horizons. Bulk density was approximately 10% greater in the topsoil of restored land than in undisturbed land, and the water holding capacity was less, probably because there was less organic matter. In the subsoil a major problem was the inability of the soil to allow winter rainfall to recharge the water reserves. Bulk density and penetration resistance were greater in the restored subsoil than in the undisturbed subsoil. Increases in penetration resistance on drying may have restricted rooting activity, especially in the restored subsoil.Ripping of the subsoil to a depth greater than the usual 0.5 m, possibly early in the year in a grass crop to allow new root growth to exploit the cracks, may increase water availability for future dry seasons.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1475-2743.1992.tb00897.x
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    The influence of soil factors on the growth of a grass/clover sward on a restored opencast site in Northumberland, UK (1994)
    Oxford, UK : Blackwell Publishing Ltd
    Grass and forage science 49 (1994), S. 0 
    Details
    ISSN: 1365-2494
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: The growth of grass and clover components in mixed swards on a site restored after opencast coal mining and an undisturbed control site were compared. Soil nitrogen supply was reduced at the restored site. This inhibited grass growth but was beneficial for the clover component.Growth at the restored site was also inhibited by a compacted subsoil, which reduced available soil water content and impeded access to available soil water. This inhibited crop production from the middle of the second silage crop onwards. In 1989 this was associated with the soil at the restored site reaching permanent wilting point at 40cm. In 1990 this effect was associated with the restored site soil reaching permanent wilting point at 70cm. These drought effects reduced clover growing point population and stolon mass. Grass tiller populations were unaffected.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2494.1994.tb02022.x
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  • 5
    Electronic Resource
    Electronic Resource
    Allergic contact dermatitis from TENS gel (1994)
    Oxford, UK : Blackwell Publishing Ltd
    Contact dermatitis 30 (1994), S. 0 
    Details
    ISSN: 1600-0536
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0536.1994.tb00608.x
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  • 6
    Electronic Resource
    Electronic Resource
    The immunology of primary sclerosing cholangitis (1990)
    Springer
    Springer seminars in immunopathology 12 (1990), S. 121-128 
    Details
    ISSN: 1432-2196
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Conclusion A number of recent studies have been discussed which provide strong evidence that genetic and immunological factors are important in the pathogenesis of PSC. Current evidence suggests that PSC is, like primary biliary cirrhosis, an immunologically mediated disease [8]. It seems likely that the immunological destruction of the biliary system is triggered in genetically predisposed individuals by viruses or bacteria [8]. The association with ulcerative colitis may be explained by the passage of viral or bacterial organisms across the damaged colonic epithelial barrier into the systemic circulation. Further studies are needed to confirm this attractive hypothesis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00192687
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  • 7
    Electronic Resource
    Electronic Resource
    Interactions between two neurons in contact chemosensilla of the grasshopper, Schistocerca americana (1990)
    Springer
    Journal of comparative physiology 167 (1990), S. 431-436 
    Details
    ISSN: 1432-1351
    Keywords: Contact chemosensilla ; Grasshopper ; Inhibition ; Nicotine
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The tibial contact chemosensilla of Schistocerca americana contain several neurons, one of which responds to nicotine hydrogen tartrate and certain other compounds. The activity of this cell is sometimes briefly interrupted by the firing of a second cell in the same sensillum which usually only fires a few times in the first 500 ms of a stimulation. The evidence suggests that the nicotine-sensitive cell is directly inhibited by the activity of the second cell. Not all cells in the sensillum produce the same effect.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00192578
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    Paper (German National Licenses)
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  • 8
    Electronic Resource
    Electronic Resource
    Of animals and men (1992)
    [s.l.] : Nature Publishing Group
    Nature 357 (1992), S. 187-187 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR - I was surprised that Nature1 thought it necessary to make something of a conundrum of the fact that Charles Darwin was a strong supporter of physiology and recognized the need for experiment on animals. In 1875, largely in response to a vigorous antivivisection-ist campaign, the Cardwell ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/357187a0
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  • 9
    Electronic Resource
    Electronic Resource
    A novel resin-filled ion-sensitive micro-electrode suitable for intracellular measurements in isolated cardiac myocytes (1990)
    Springer
    Pflügers Archiv 416 (1990), S. 196-200 
    Details
    ISSN: 1432-2013
    Keywords: Myocyte ; Intracellular ions
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A method for the manufacture of ion-sensitive micro-electrodes, which can be readily used with small single cells, is described in detail. A glass pipette with a tip size of 1 μm, essentially similar to those used as suction electrodes in whole-cell recording, when silanized and with its tip filled with a suitable ion-sensitive resin, producesan ion-sensitive electrode with fast electrical and chemical response times. These electrodes can be applied to the cell membrane of isolated myocytes and penetration achieved without cell damage, by the application of suction. For the estimation of intracellular ionic activities they can be used in conjunction with a separate conventional KCl-filled micro-electrode or a suction voltage electrode. The technique is illustrated by the measurement of intracellular Na+, Ca2+ and pH. It is possible that these electrodes can also be used to measure local changes in ionic activity in restricted areas.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00370242
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  • 10
    Electronic Resource
    Electronic Resource
    Olfactory sensitivity of gomphocerine grasshoppers to the odours of host and non-host plants (1990)
    Springer
    Entomologia experimentalis et applicata 55 (1990), S. 205-212 
    Details
    ISSN: 1570-7458
    Keywords: Olfactory sensitivity ; grasshoppers ; electroantennogram ; Larrea ; hostplant
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Résumé Les réponses antennaires ont été examinées par électroantennogramme aux odeurs de plantes hôtes et non hôtes d'orthoptères Gomphocerinae de comportements alimentaires différents: Bootettix argentatus, monophage sur une dicotylédone, Larrea; Ligurotettix coquilletti, oligophage de dicotylédones; Cibolacris parviceps, polyphage; Chorthippus curtipennis, graminivore. Les types de réponse des quatre espèces étaient très voisins, mais les réponses aux odeurs de Larrea de B. argentatus et L. coquilletti, spécialistes de cette plante, étaient relativement plus fortes. Ces résultats suggèrent une similarité globale considérable dans la composition des populations de récepteurs olfactifs de ces quatre espèces d'orthoptères mais aussi une certaine spécificité pour les odeurs de la plante hôte au niveau antennaire.
    Notes: Abstract Antennal responses to host and non-host odours were recorded, using the electroantennogram technique, from four gomphocerine grasshoppers with different feeding habits: Bootettix argentatus (monophagous on Larrea, a dicotyledonous plant), Ligurotettix coquilletti (oligophagous on dicotyledonous plants), Cibolacris parviceps (polyphagous) and Chorthippus curtipennis (graminivorous). The patterns of responses across the plant odours were similar for all four grasshopper species, but there was a relatively greater response to the odour of Larrea in B. argentatus and L. coquilletti which specialise on this plant. This suggests that there is considerable overall similarity in the make up of the olfactory receptor populations of these four grasshoppers species, but that some specificity for hostplant odour does exist at the antennal level.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00190659
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