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  • 1
    ISSN: 1600-0536
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The authors report a study allergic contact dermatitis in 329 Portuguese children of 14 years or younger. 170 children (64 male and 106 female) reacted to 1 or more allergens. Most of these were in the 11–14 years group. The main allergens were nickel, thimerosal, cobalt, mercury, fragrance-mix and potassium dichromate. Nickel reactivity predominated in females over the whole group, but a greater number of males younger than 5 years reacted to nickel. The number of positive reactions increased with age, but this was not accompained by an increase in the % of relevant tests. 12 children, all of them 13 or 14 years-old, had an occupational allergic contact dermatitis.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Journal of industrial microbiology and biotechnology 24 (2000), S. 403-409 
    ISSN: 1476-5535
    Keywords: Keywords: phenol; soil; enzyme; extracellular
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Two microorganisms isolated from Amazonian forest soil samples and identified as Candida tropicalis and Alcaligenes faecalis were capable of degrading phenol (16 and 12 mM, respectively) at high salt concentrations (15% and 5.6%, respectively). Chromatographic and enzymatic studies revealed that each microorganism cleaved phenol at the ortho position with total phenol mineralization. 14C-phenol mineralization assays showed that both microorganisms assimilated about 30% of the total label. No phenol degradation metabolite (i.e., catechol, cis, cis-muconic acid) was detected in the intercellular medium. The presence of phenol hydroxylase (EC 1.14.13.7) and catechol 1,2-dioxygenase (EC 1.13.11.1) extracellular activity suggested that these microorganisms may secrete these enzymes into the extracellular medium. Journal of Industrial Microbiology & Biotechnology (2000) 24, 403–409.
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  • 3
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1432-1335
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Wachsende Kulturen von Embryonalzellen des Schafes wurden mit Quinacrin, einem die Lysosomen markierenden Farbstoff, in verschiedener Konzentration (10−5, 10−6 und 10−7 g/ml des Kulturmediums) für 24 Std. inkubiert. Die durchschnittliche Zahl der Mitosen und der 24stündlich mit Thymidin markierten Zellen entsprechen einer Exponentialfunktion der anfänglichen Farbstoffkonzentration im Kulturmedium. Die Variationen der S-Phase (gemessen an autoradiographischen Impulsen in einer Stunde) legt das Vorhandensein zweier verschiedener Zeiten für Zellpopulationen bei 10−6 und 10−7 g/ml nahe. Der Vergleich des Prozentsatzes der Zellen mit sauerer Phosphatase mit dem Mitoseindex spricht für ein gegensätzliches Verhalten beider Parameter. Vielkernigkeit war bei den Zellen von den 10−5 g/ml-Präparaten sechsmal häufiger als in den Kontrollen. In den Präparaten zeigten 3,2% der Zellen Kern-Cytoplasma-Brücken ohne Thymidinmarkierung. Die intravital gefärbten Lysosomen enthielten sauere Phosphatase, eine PAS-positive Substanz, Ribonucleoprotein und einen blau fluorescierenden Stoff, der resistent war gegen Nucleaseverdauung.
    Notes: Summary Cultures of sheep embryonic cells, when actively growing, were incubated with quinacrine (a lysosome tagg) at concentrations of 10−7, 10−6, 10−5 g/ml of culture medium, for 24 hours. The mean number of mitosis and 24 hour thymidine labelled cells are an exponential function of the initial dye concentration on the culture medium. The variation of S compartment (on one hour pulse autoradiographs) suggests two different transit times of cell population at 10−6 and 10−7 g/ml. The distribution obtained by plotting the percentages of cells with acid phosphatase against mitotic index points to an inverse correlation between these two parameters. Multinucleation in cells obtained from 10−5 g/ml preparations was six times more frequent as compared to the controls. In such preparations 3.2% of the cells showed nucleus-cytoplasmatic bridging with no thymidine label. The intravital stained bodies (the lysosomes) contain acid phosphatase, a PAS positive substance, ribonucleoprotein and a blue fluorescent material resisting nuclease digestion.
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Social psychiatry and psychiatric epidemiology 34 (1999), S. 316-322 
    ISSN: 1433-9285
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Background: A cross-sectional survey was conducted in Pelotas, southern Brazil, to assess the relationship between the use of benzodiazepines (BZD), minor psychiatric disorders (MPD) and social factors. Methods: A representative sample (n = 1277) was interviewed using the Self-Reporting Questionnaire (SRQ-20) for MPD. Subjects were asked about the use of BZD in the preceding 2 weeks and were also asked for socioeconomic details. Results: A total of 152 (11.9%; 95% CI 10.1–13.7) subjects had taken psychotropic drugs, with BZD being the most commonly reported (8%). The prevalence of MPD was 22.7% (95% CI 20.4–25.0): males 17.9% and females 26.5%. An inverse relationship was seen between level of income, schooling and prevalence of MPD (P 〈 0.001), but a positive relationship was found between income and BZD consumption (P 〈 0.05). Conclusions: These data suggest that the inverse care law operates in prescribing psychotropic medications for MPD.
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  • 7
    ISSN: 1432-8798
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary No progeny virus is detected by determination of the infectivity titres when embryo muscle cell cultures are exposed to a concentration of 10−5 M of 5-fluorodeoxyuridine at the time of sheeppox virus infection. The autoradiographic preparations of FUdR treated cells showed cytoplasmic labelling into viral DNA (tritiated deoxyuridine) in 4 to 9% of the cells during the first 24 hours of infection. In cells exposed to FUdR in which viral DNA synthesis was detected by autoradiography, progeny virus not detectable by infectivity test might be produced. The demonstration of viral proteins by immunofluorescence served to establish that viral DNA synthesis is not essential for viral protein synthesis in FUdR treated cells. Under light microscopy, there is no apparent difference between the cytopathic effects of viral infection in treated and in untreated cells.
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  • 8
    ISSN: 1432-8798
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular histology 6 (1974), S. 237-243 
    ISSN: 1573-6865
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Synopsis We have previously reported that granules of tumour cells supravitally stained with thiazine dyes show a fluorescence which changes when exposed to light. This paper reports studies of the action spectra of this reaction. Action spectra of Sarcoma 37 ascitic tumour cells, fixed and living, stained with the oxazine dye Nile Blue, the thiazine dye Azure II, and the monoazo dye Janus Green B, display maxima in the 365–400 nm region. The action spectra peaks do not coincide with the absorption maxima of the dyes in solution. The information given in these action spectra has enabled the effects of fixation to be studied.
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  • 10
    Publication Date: 2022-03-25
    Description: Quantifying the anthropogenic fluxes of CO2 is important to understand the evolution of carbon sink capacities, on which the required strength of our mitigation efforts directly depends. For the historical period, the global carbon budget (GCB) can be compiled from observations and model simulations as is done annually in the Global Carbon Project's (GCP) carbon budgets. However, the historical budget only considers a single realization of the Earth system and cannot account for internal climate variability. Understanding the distribution of internal climate variability is critical for predicting the future carbon budget terms and uncertainties. We present here a decomposition of the GCB for the historical period and the RCP4.5 scenario using single‐model large ensemble simulations from the Max Planck Institute Grand Ensemble (MPI‐GE) to capture internal variability. We calculate uncertainty ranges for the natural sinks and anthropogenic emissions that arise from internal climate variability, and by using this distribution, we investigate the likelihood of historical fluxes with respect to plausible climate states. Our results show these likelihoods have substantial fluctuations due to internal variability, which are partially related to El Niño‐Southern Oscillation (ENSO). We find that the largest internal variability in the MPI‐GE stems from the natural land sink and its increasing carbon stocks over time. The allowable fossil fuel emissions consistent with 3 C warming may be between 9 and 18 Pg C yr−1. The MPI‐GE is generally consistent with GCP's global budgets with the notable exception of land‐use change emissions in recent decades, highlighting that human action is inconsistent with climate mitigation goals.
    Description: Key Points: We use a single‐model large ensemble to estimate uncertainties from internal climate variability in the global carbon budget. The land sink accounts for most internal climate uncertainty which may permit 9–18 Pg C yr−1 in allowable emissions by 2050 (for 3°C warming).
    Description: European Union's Horizon 2020
    Keywords: ddc:551.9 ; ddc:551.6
    Language: English
    Type: doc-type:article
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