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  • 1
    Electronic Resource
    Electronic Resource
    George de Hevesy-80 years
    Amsterdam : Elsevier
    The @International Journal Of Applied Radiation And Isotopes 16 (1965), S. 513-516 
    Details
    ISSN: 0020-708X
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0020-708X(65)90134-1
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Electrical impedance and erythrocyte sedimentation rate (ESR) of blood
    Amsterdam : Elsevier
    Biochimica et Biophysica Acta (BBA)/Biomembranes 1153 (1993), S. 243-248 
    Details
    ISSN: 0005-2736
    Keywords: Blood ; Electric conductivity ; Erythrocyte sedimentation rate ; Membrane ; Sedimentation
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Medicine , Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0005-2736(93)90411-R
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  • 3
    Electronic Resource
    Electronic Resource
    A mechanism to explain the generation of earthquake lights (1983)
    [s.l.] : Nature Publishing Group
    Nature 302 (1983), S. 28-33 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Explanations of how earthquake lights might arise have failed to show how large charge densities can be concentrated and sustained in a conductive Earth. A physical model is proposed, based on frictional heating of the fault, that solves this and related ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/302028a0
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Uptake of free and DNA-bound daunorubicin and doxorubicin into human leukemic cells (1979)
    Springer
    Cancer chemotherapy and pharmacology 2 (1979), S. 49-52 
    Details
    ISSN: 1432-0843
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Leukemic cells from seven patients with acute nonlymphoblastic leukemia and granulocytes, and mononuclear cells from three healthy controls were isolated by centrifugation on metrozoate-dextran. The intracellular accumulation of both the free and DNA-bound forms of daunorubicin and doxorubicin was studied in vitro. The uptake of unbound daunorubicin was higher than that of doxorubicin. At drug concentrations of 1.75 μM and higher the uptake of the free drugs was greater than that of the bound forms, but at lower drug concentrations the uptake was about the same. This could at least partly be explained by a greater dissociation of the DNA-drug complexes at lower drug concentrations. The uptake into normal leukocytes was of the same order of magnitude as that into leukemic cells. There was a great interindividual variation in the accumulation of both free and DNA-bound drugs in the cells from leukemic patients. This variation might be of importance for the prediction of individual sensitivity to the different drugs.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00253105
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  • 5
    Electronic Resource
    Electronic Resource
    Treatment of acute nonlymphoblastic leukemia in adults with daunorubicin-DNA complex: A preliminary report (1979)
    Springer
    Cancer chemotherapy and pharmacology 2 (1979), S. 73-76 
    Details
    ISSN: 1432-0843
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Forty-four adult patients under 60 years of age with acute nonlymphoblastic leukemia were randomized for induction treatment with one of the following three regimens: R 1 = courses of daunorubicin on day 1+ARA-C on days 1–5; R 2 = courses of daunorubicin on days 1 and 2+ARA-C on days 4–8; R 3 = courses of daunorubicin-DNA complex on days 1–2+ ARA-C on days 4–8. Out of 14 patients, 9 went into remission on R 1, 6 out of 14 on R 2, and 8 out of 16 on R 3. The preliminary results suggest that daunorubicin-DNA complex has the same efficacy for inducing remission as daunorubicin alone, if the same time intervals and dosages are used.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00253109
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  • 6
    Electronic Resource
    Electronic Resource
    A two-stage model of fracture of rocks (1996)
    Springer
    Pure and applied geophysics 146 (1996), S. 253-263 
    Details
    ISSN: 1420-9136
    Keywords: Fracture ; fault nucleation ; critical crack density ; hierarchic failure ; earthquakes ; thermal activation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract In this paper we propose a two-stage model of rock fracture. In the first stage, cracks or local regions of failure are uncorrelated and occur randomly throughout the rock in response to loading of pre-existing flaws. As damage accumulates in the rock, there is a gradual increase in the probability that large clusters of closely spaced cracks or local failure sites will develop. Based on statistical arguments, a critical density of damage will occur where clusters of flaws become large enough to lead to larger-scale failure of the rock (stage two). While crack interaction and cooperative failure is expected to occur within clusters of closely spaced cracks, the initial development of clusters is predicted based on the random variation in pre-existing flaw populations. Thus the onset of the unstable second stage in the model can be computed from the generation of random, uncorrelated damage. The proposed model incorporates notions of the kinetic (and therefore time-dependent) nature of the strength of solids as well as the discrete hierarchic structure of rocks and the flaw populations that lead to damage accumulation. The advantage offered by this model is that its salient features are valid for fracture processes occurring over a wide range of scales including earthquake processes. A notion of the rank of fracture (fracture size) is introduced, and criteria are presented for both fracture nucleation and the transition of the failure process from one scale to another.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00876492
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  • 7
    Electronic Resource
    Electronic Resource
    Quasi-static fault growth and shear fracture energy in granite (1991)
    [s.l.] : Nature Publishing Group
    Nature 350 (1991), S. 39-42 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The failure process in a brittle granite sample can be stabilized by controlling axial stress to maintain a constant rate of acoustic emission. As a result, the post-failure stress curve can be followed quasi-statically, extending to hours the fault growth process which normally would occur ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/350039a0
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  • 8
    Electronic Resource
    Electronic Resource
    Sites of the Physiological Breakdown of the Red Blood Corpuscles (1958)
    [s.l.] : Nature Publishing Group
    Nature 181 (1958), S. 911-911 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Since the plasma contains no radioiron, the only source of iron-59 present in the depot iron fractions is radioiron liberated from the transfused labelled red corpuscles. This line of thought induced us to replace red corpuscles contained in 20 ml. of rabbit blood with the corresponding amount of ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/181911a0
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  • 9
    Electronic Resource
    Electronic Resource
    Quantitation of Erythropoiesis (1963)
    [s.l.] : Nature Publishing Group
    Nature 199 (1963), S. 390-391 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Five hsematologically healthy subjects were examined and their PIT measured3. Inactive iron as iron-dextrin (Ferrigen, kindly supplied by Astra, Sodertalje) was slowly injected intravenously, in 100-mg doses, at the indicated intervals. Radioiron incorporation into the erythrocytes was followed for ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/199390a0
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  • 10
    Electronic Resource
    Electronic Resource
    Velocity anomalies: An alternative explanation based on data from laboratory experiments (1978)
    Springer
    Pure and applied geophysics 116 (1978), S. 765-772 
    Details
    ISSN: 1420-9136
    Keywords: Velocity anomalies ; Microfractures ; Stick-slip
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract Locations and velocities were calculated for microseisms occurring in samples of rock subjected to triaxial loading and injection of pore fluid. This was accomplished by analyzing arrival times of acoustic emission using an automatic first arrival picker. Apparent velocity anomalies were observed prior to both failure of intact samples and violent slip in samples containing saw cuts. Further analysis revealed that these fluctuations in calculated velocity were not due to changes in the true seismie velocity. Instead, variations in calculated velocity are shown to be related to sampling errors in picking first arrivals. The systematic picking of late first arrivals for small magnitude events was found to be a persistent bias resulting in low calculated velocities. This has encouraged the reexamination of earthquake records to determine how important sampling biases are in contributing to reported velocity anomalies.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00876537
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