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  • 1
    Electronic Resource
    Electronic Resource
    Secondary metabolites produced by Fusarium sporotrichioides DAOM 165006 in liquid culture (1988)
    s.l. : American Chemical Society
    Journal of agricultural and food chemistry 36 (1988), S. 216-219 
    Details
    ISSN: 1520-5118
    Source: ACS Legacy Archives
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jf00079a054
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  • 2
    Electronic Resource
    Electronic Resource
    Fractionation and characterization of Utah tar-sand bitumens: influence of chemical composition on bitumen viscosity (1991)
    s.l. : American Chemical Society
    Energy & fuels 5 (1991), S. 333-340 
    Details
    ISSN: 1520-5029
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ef00026a019
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  • 3
    Electronic Resource
    Electronic Resource
    Fractionation and characterization of Whiterocks tar-sand bitumen (1992)
    s.l. : American Chemical Society
    Energy & fuels 6 (1992), S. 160-165 
    Details
    ISSN: 1520-5029
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ef00032a007
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Surface charge of alkali halide particles as determined by laser-Doppler electrophoresis (1992)
    s.l. : American Chemical Society
    Langmuir 8 (1992), S. 1464-1469 
    Details
    ISSN: 1520-5827
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/la00041a036
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  • 5
    Electronic Resource
    Electronic Resource
    Verification of the internal reflection spectroscopy adsorption density equation by Fourier transform infrared spectroscopy analysis of transferred Langmuir-Blodgett films (1993)
    s.l. : American Chemical Society
    Langmuir 9 (1993), S. 3159-3165 
    Details
    ISSN: 1520-5827
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/la00035a068
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  • 6
    Electronic Resource
    Electronic Resource
    Photometric Determination of Nickel in Petroleum Cracking Catalyst (1956)
    s.l. : American Chemical Society
    Analytical chemistry 28 (1956), S. 1209-1209 
    Details
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ac60115a050
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  • 7
    Electronic Resource
    Electronic Resource
    A rodent model of infusion brain edema: Methodology and pathophysiological effects of saline and protein infusions (1990)
    Springer
    Acta neurochirurgica 105 (1990), S. 158-168 
    Details
    ISSN: 0942-0940
    Keywords: Brain edema ; cerebral blood flow ; brain tissue hydraulic resistance ; somatosensory evoked potential ; intracranial pressure
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary To evaluate the potency of putative secondary mediators of brain edema and their possible contribution to edema related brain dysfunction an infusion model of brain edema was developed in rats. 100 ul of fluid (saline, 20% nonautologous protein) was infused over one hour into the left forebrain white matter through a stereotaxically placed (+ 1.2 mm ant to bregma, 3 mm lateral and 2.9 mm depth) 25 G needle. Brain tissue hydraulic resistance (Rt), regional cerebral blood flow (rCBF), cortical somatosensory evoked potentials (SEPs) and intracranial pressure (ICP) (intraventricular needle) were monitored during the infusion and rCBF CO2 reactivity (hydrogen clearance), local brain water content (microgravimetry), BBB integrity (Evans Blue 2%) and brain histology (H & E, Solochrome-cyanin) were evaluated after the infusion. Saline infusates caused no physiological dysfunction despite ipsilateral expansion and vacuolation of the subcortical white matter, separation of axonal bundles and a significant decrease (p=3.8×10−5)in local subcortical tissue specific gravity. Cortical histology and specific gravity adjacent to the infusion locus were normal. Rt significantly decreased (p=6.5×10−4) during the infusion but there were only minor increases in ICP. Findings with 20% protein infusates were similar despite a focal 65% decrement in the rCBF CO2 reactivity adjacent to the infusion site. This study has shown that a simple and inexpensive model of infusion brain edema can be created in the rat and that it provides a useful model for assessing the physiological effects of mediator compounds in the infusate. Potential applications and methodological improvements for this model are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01670001
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  • 8
    Electronic Resource
    Electronic Resource
    Positive and negative impacts of longwall mine subsidence on a sandstone aquifer (1998)
    Springer
    Environmental geology 34 (1998), S. 223-233 
    Details
    ISSN: 1432-0495
    Keywords: Key words Aquifer properties ; Mining ; Subsidence
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract  Subsidence due to longwall underground coal mining changes the hydraulic properties, heads, yields, and in some cases the groundwater chemistry of overlying bedrock aquifers. A 7-year study of a sandstone aquifer overlying an active longwall mine in Illinois has supported a comprehensive model of these impacts. Subsidence caused increases in permeability and storativity over the longwall panel. These changes initially caused a major decline in water levels in the sandstone, but the aquifer recovered slightly within a few months and fully within several years after mining. The enhanced hydraulic properties combined with potentiometric recovery resulted in a zone of greater well yield. However, at sites with very poor transmissivity and inadequate recharge pathways, recovery may not occur. Also, at the study site, the physical enhancement was accompanied by a deterioration in groundwater quality from slightly brackish, sodium bicarbonate water to more brackish water with increased sulfate levels.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002540050274
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  • 9
    Electronic Resource
    Electronic Resource
    The morphopathologic substrates of concussion? (1979)
    Springer
    Acta neuropathologica 47 (1979), S. 1-11 
    Details
    ISSN: 1432-0533
    Keywords: Experimental Concussion ; Peroxidase, neuronal uptake ; Electron microscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Neuronal inundation with i.v. infused horseradish peroxidase was studied following concussive brain injury by means of both light and electron microscopy. In animals sustaining mechanical brain injury of insufficient intensity as to elicit either microscopic intraparenchymal hemorrhage or other neuropathological change, yet of sufficient intensity as to provoke a physiological concussive response, vascular peroxidase exudation concomitant with neuronal peroxidase inundation occurred throughout the raphe and reticular core. Initially such inundated neurons were totally flooded with the tracer and as such appeared reminiscent of cells visualized in Golgi preparations. However, over the course of a 24-h period these peroxidase flooded neurons apparently organized the peroxidase into vesicles and vacuoles which assumed a perinuclear position from where the peroxidase ultimately reached both the nucleus und nucleolus. It was remarkable that these events occurred without any evidence of subcellular alteration. We interpret such initial inundation with this protein tracer, its ultimate reorganization, and its nuclear and nucleolar uptake as being consistent with some form of subtle and transient neuronal perturbation. We speculate that as such this neuronal perturbation may constitute a morphological correlate of the concussive episode.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00698266
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  • 10
    Electronic Resource
    Electronic Resource
    The role of postischemic recirculation in the development of ischemic neuronal injury following complete cerebral ischemia (1981)
    Springer
    Acta neuropathologica 55 (1981), S. 205-220 
    Details
    ISSN: 1432-0533
    Keywords: Postischemic recirculation ; Complete cerebral ischemia ; Ischemic neuronal injury ; Electron microscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The neuronal response to complete cerebral ischemia (CCI) of 5–15 min duration was evaluated at the light and electron microscopic level subsequent to postischemic recirculation periods of up to 60 min. Following postischemic reperfusion, the homogeneous neuronal changes characteristic of permanent CCI were modified into a heterogeneous pattern of selectively vulnerable neuronal responses. Four basic types of neuronal injury were represented within this heterogeneous neuronal population. The Type I neuronal response was most numerous and consisted of chromatin clumping, nucleolar condensation and a breakdown of polysomes. This response may represent a reversal of some of the neuronal changes observed after permanent CCI. In addition to the above changes, Type II neurons contained swollen mitochondria and Golgi saccules which appeared as microvacuoles under the light microscope. Type III neurons displayed varying degrees of neuronal shrinkage and numerous swollen mitochondria. Type IV neurons were markedly shrunken and electron-dense with few identifiable subcellular structures. The distribution of Type I neurons was random but the other neuronal responses occurred in “selectively vulnerable” brain regions. The number of Type II, III, and IV neurons increased with extended insult durations but were unaffected by the length of recirculation. Ten minutes of CCI represented the threshold for a significant increase in the number of severely altered neurons. These findings suggest that considerable neuronal injury may be present after 10–15 min of CCI, and the lack of a recirculation period following CCI appears to afford the brain parenchyma an extensive degree of structural protection.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00691320
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