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  • 11
    Electronic Resource
    Electronic Resource
    Springer
    Diabetologia 23 (1982), S. 143-143 
    ISSN: 1432-0428
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 12
    Electronic Resource
    Electronic Resource
    Springer
    European journal of plant pathology 106 (2000), S. 135-146 
    ISSN: 1573-8469
    Keywords: Cicer arietinum ; quantitative epidemiology ; disease modelling
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Artificial inoculation experiments were carried out at 25°C to determine the effects of inoculum density of Fusarium oxysporum f.sp. ciceris races 0 (Foc-0) and 5 (Foc-5) and susceptibility of chickpea cultivars P-2245 and PV-61 on development of Fusarium wilt. Foc-5 proved much more virulent than Foc-0. Increasing the inoculum density of F. oxysporum f.sp. ciceris caused an exponential reduction in disease incubation period and a monomolecular increase of disease incidence and the area under the disease intensity progress curve. The extent of these effects was highest in the most conducive ‘P-2245’/Foc-5 combination and decreased in the less susceptible ‘PV-61’ and for the less virulent Foc-0, in that order. For ‘P-2245’/Foc-5, the highest disease intensity was attained with 6 chlamydospores g−1 of soil, the lowest inoculum density in the study. One thousand chlamydospores g−1 of soil of the same race were needed to attain a comparable disease intensity in ‘PV-61’. Twenty thousand chlamydospores g−1 of soil of Foc-0 were required for maximum disease intensity in ‘P-2245’. The disease intensity curves were adequately described by the Gompertz model. Using this model, a response surface for disease intensity was developed, in which the model parameters are expressed as a function of both time from inoculation and inoculum density. This response surface confirmed that the final amount of disease intensity increases in a monomolecular relationship with increasing inoculum density and showed that the relative rate of disease progress increases exponentially with increasing inoculum density of the pathogen.
    Type of Medium: Electronic Resource
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  • 13
    Electronic Resource
    Electronic Resource
    Springer
    Protoplasma 211 (2000), S. 198-206 
    ISSN: 1615-6102
    Keywords: Apoptosis ; Atherosclerosis ; Endothelium ; Lipoproteins
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Endothelial lesion by oxidized low-density liproproteins (LDL) is one of the first stages in the development of atherosclerosis. The effect of these lipoproteins can range from a functional lesion of the endothelium to death of the endothelial cells by apoptosis. High-density lipoproteins (HDL) are one of the factors which can have a protective effect against the development of atheromatous plaques. The aim of this study is to establish whether the death of endothelial cells by apoptosis induced by oxidized LDLs is prevented by HDLs. ECV304 endothelial cells and bovine aorta endothelial cells were incubated with native LDLs, oxidized LDLs, and a combination of both oxidized LDLs and HDLs. Oxidized LDLs caused a significant increase of mortality mainly by apoptosis. However, when HDLs were added together with oxidized LDLs the percentage of total mortality, the degree of lipoprotein oxidation in the medium, and the percentage of cells in apoptosis were all significantly decreased. HDLs protect against the cytotoxicity of oxidized LDLs possibly by preventing the propagation of the oxidative chain in these lipoproteins.
    Type of Medium: Electronic Resource
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  • 14
    Electronic Resource
    Electronic Resource
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 239-241 (Nov. 1996), p. 439-442 
    ISSN: 1662-9752
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 15
    Electronic Resource
    Electronic Resource
    Springer
    Digestive diseases and sciences 40 (1995), S. 481-484 
    ISSN: 1573-2568
    Keywords: cholesterol embolism ; atheroembolism ; gastrointestinal tract ; intestinal performation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 16
    Electronic Resource
    Electronic Resource
    Springer
    Journal of neural transmission 105 (1998), S. 703-708 
    ISSN: 1435-1463
    Keywords: Keywords: Amyotrophic lateral sclerosis ; motoneuron disease ; alpha-tocopherol ; vitamin E ; cerebrospinal fluid levels ; serum levels.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary. We compared CSF and serum levels, and the CSF/serum ratio of alpha-tocopherol (vitamin E), measured by HPLC, in 30 patients with sporadic amyotrophic lateral sclerosis (SALS) and 78 matched controls. The mean CSF and serum vitamin E levels did not differ significantly between the 2 study groups. These values were not influenced by the clinical form (spinal versus bulbar) of SALS. CSF alpha-tocopherol levels did not correlate with age, age at onset, and duration of the disease. These results suggest that CSF and serum alpha-tocopherol concentrations are unrelated with the risk for ALS.
    Type of Medium: Electronic Resource
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  • 17
    Electronic Resource
    Electronic Resource
    Springer
    ISSN: 1435-4373
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Cerebrospinal fluid (CSF) anti-mycobacterial antigen 60 (A60) IgM, IgG and IgA in patients affected by meningitis of different etiologies were assayed as a rapid diagnostic test in cases of tuberculous meningitis. A commercial EIA was used to test 127 CSF samples classified as follows: tuberculous meningitis (n=27 CSF samples from 16 patients, 6 of them with AIDS), pyogenic meningitis (n=13), non-tuberculous aseptic meningitis (n=43) and 44 normal CSF samples (16 of them from HIV-positive patients, 8 of whom had extraneurological tuberculosis). Anti-A60 IgM was positive only in two cases (1 tuberculous meningitis and 1 self-resolving aseptic meningitis). Positive CSF anti-A60 IgG and IgA were observed in eight and nine out of 16 patients with tuberculous meningitis, but only in four and five out of 13 samples studied prior to or in the first ten days of treatment, respectively. Most of the patients with false-positive IgG and IgA (16 %) had pyogenic meningitis, but without intrathecal synthesis of antibodies. In patients with aseptic meningitis, the finding of CSF anti-A60 IgG plus IgA, initially or during follow-up, can be used as a diagnostic criterion for tuberculous meningitis, with a specificity of 100 %, a positive predictive value of 1, and a negative predictive value of 0.81. However, its sensitivity is only 50 % in immunocompetent patients and 16 % in patients with AIDS.
    Type of Medium: Electronic Resource
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  • 18
    Electronic Resource
    Electronic Resource
    Springer
    Biotechnology letters 16 (1994), S. 853-858 
    ISSN: 1573-6776
    Source: Springer Online Journal Archives 1860-2000
    Topics: Process Engineering, Biotechnology, Nutrition Technology
    Notes: Abstract In this work we studied the production of betalains by suspension culture of Beta vulgaris. The B. vulgaris grew at a doubling time of 4.8 days. The betalains production was found to be not-growth related. The culture's response to different carbon sources was investigated. Best growth and pigment production was obtained with sucrose.
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  • 19
    Electronic Resource
    Electronic Resource
    Springer
    Microchimica acta 80 (1983), S. 349-354 
    ISSN: 1436-5073
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Vanadin bildet bei pH 8,10 (Tris-HClO4-buffer) mit 4-(1′H-1′,2′,4′-tri-azolyl-3′-azo)-2-methylresorcin ein rosenrot-violettes Chelat, dessen Absorptionsmaximum bei 525 nm in Gegenwart von 50% Methylalkohol gemessen wird. Dieser 1∶1-Komplex entspricht bei einer Vanadin-Konzentration von 0,1–1,51μg/ml dem Beerschen Gesetz; seine molare Absorptivität ist 2,55×104l·mol−1·cm−1. Das Verfahren wurde zur Bestimmung des Vanadins in Stahl verwendet.
    Notes: Summary 4-(1′H-1′,2′,4′-Triazolyl-3′-azo)-2-methylresorcinol reacts with vanadium(V) at pH 8.10 (Tris-HClO4 buffer solution) to produce a pink-violet 1∶1 complex (λ max=525 nm,ε=2.55×104l·mol−1· cm−1) in a 50% (v/v) methanol-water medium, which allows the spectrophotometric determination of 0.1 to 1.51 ppm of vanadium. The method has been applied for the determination of the vanadium content in low alloy steels.
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  • 20
    Electronic Resource
    Electronic Resource
    Springer
    Astrophysics and space science 263 (1998), S. 339-342 
    ISSN: 1572-946X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Type of Medium: Electronic Resource
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