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  • 1
    Electronic Resource
    Electronic Resource
    Pyruvate carboxylase from a thermophilic bacillus: some molecular characteristics (1979)
    s.l. : American Chemical Society
    Biochemistry 18 (1979), S. 3647-3653 
    Details
    ISSN: 1520-4995
    Source: ACS Legacy Archives
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/bi00584a001
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Fast analytical procedure for the separation and determination of the polythionates found in Wackenroder's solution by high speed liquid chromatography (1973)
    s.l. : American Chemical Society
    Analytical chemistry 45 (1973), S. 2268-2270 
    Details
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ac60335a028
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Association of elevated lipoprotein(a) levels and coronary heart disease in NIDDM patients. Relationship with apolipoprotein(a) phenotypes (1994)
    Springer
    Diabetologia 37 (1994), S. 585-591 
    Details
    ISSN: 1432-0428
    Keywords: NIDDM ; lipoprotein(a) ; apo(a) isoforms ; coronary heart disease ; lipids ; lipoproteins ; cardiovascular risk factors
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Non-insulin-dependent diabetes mellitus (NIDDM) is a strong and independent risk factor for coronary heart disease. We assessed the potential relationship between plasma Lp(a) levels, apo(a) phenotypes and coronary heart disease in a population of NIDDM patients. Seventy-one patients with coronary heart disease, who previously have had transmural myocardial infarction, or significant stenosis on coronary angiography, or positive myocardial thallium scintigraphy, or in combination, were compared with 67 patients without coronary heart disease, who tested negatively upon either coronary angiography, myocardial thallium scintigraphy or a maximal exercise test. The prevalence of plasma Lp(a) levels elevated above the threshold for increased cardiovascular risk (〉0.30 g/l) was significantly higher (p=0.005) in patients with coronary heart disease (33.8%) compared to the control group (13.4%). The relative risk (odds ratio) of coronary heart disease among patients with high Lp(a) concentrations was 3.1 (95% confidence interval, 1.31–7.34;p=0.01). The overall frequency distribution of apo(a) phenotypes differed significantly between the two groups (p=0.043). However, the frequency of apo(a) isoforms of low apparent molecular mass (≤700 kDa) was of borderline significance (p=0.067) between patients with or without coronary heart disease (29.6% and 16.4%, respectively). In this Caucasian population of NIDDM patients, elevated Lp(a) levels were associated with coronary heart disease, an association which was partially accounted for by the higher frequency of apo(a) isoforms of small size. In multivariate analyses, elevated levels of Lp(a) were independently associated with coronary heart disease (odds ratio 3.48, p=0.0233).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00403377
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  • 4
    Electronic Resource
    Electronic Resource
    Association of elevated lipoprotein(a) levels and coronary heart disease in NIDDM patients. Relationship with apolipoprotein(a) phenotypes (1994)
    Springer
    Diabetologia 37 (1994), S. 585-591 
    Details
    ISSN: 1432-0428
    Keywords: Key words NIDDM, lipoprotein(a), apo(a) isoforms, coronary heart disease, lipids, lipoproteins, cardiovascular risk factors.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Non-insulin-dependent diabetes mellitus (NIDDM) is a strong and independent risk factor for coronary heart disease. We assessed the potential relationship between plasma Lp(a) levels, apo(a) phenotypes and coronary heart disease in a population of NIDDM patients. Seventy-one patients with coronary heart disease, who previously have had transmural myocardial infarction, or significant stenosis on coronary angiography, or positive myocardial thallium scintigraphy, or in combination, were compared with 67 patients without coronary heart disease, who tested negatively upon either coronary angiography, myocardial thallium scintigraphy or a maximal exercise test. The prevalence of plasma Lp(a) levels elevated above the threshold for increased cardiovascular risk (〉0.30 g/l) was significantly higher (p =0.005) in patients with coronary heart disease (33.8 %) compared to the control group (13.4 %). The relative risk (odds ratio) of coronary heart disease among patients with high Lp(a) concentrations was 3.1 (95 % confidence interval, 1.31–7.34; p =0.01). The overall frequency distribution of apo(a) phenotypes differed significantly between the two groups (p =0.043). However, the frequency of apo(a) isoforms of low apparent molecular mass (≤ 700 kDa) was of borderline significance (p =0.067) between patients with or without coronary heart disease (29.6 % and 16.4 %, respectively). In this Caucasian population of NIDDM patients, elevated Lp(a) levels were associated with coronary heart disease, an association which was partially accounted for by the higher frequency of apo(a) isoforms of small size. In multivariate analyses, elevated levels of Lp(a) were independently associated with coronary heart disease (odds ratio 3.48, p =0.0233). [Diabetologia (1994) 37: 585–591]
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00403377
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  • 5
    Electronic Resource
    Electronic Resource
    Electrical and biochemical properties of an enzyme model of the sodium pump (1983)
    Springer
    The journal of membrane biology 74 (1983), S. 139-153 
    Details
    ISSN: 1432-1424
    Keywords: Na+, K+-ATPase ; sodium pump ; electrogenic ; computer simulation ; enzyme kinetics ; thermodynamics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Summary The electrochemical properties of a widely accepted six-step reaction scheme for the Na+, K+-ATPase have been studied by computer simulation. Rate coefficients were chosen to fit the nonvectorial biochemical data for the isolated enzyme and a current-voltage (I–V) relation consistent with physiological observations was obtained with voltage dependence restricted to one (but not both) of the two translocational steps. The vectorial properties resulting from these choices were consistent with physiological activation of the electrogenic sodium pump by intracellular and extracellular sodium (Na+) and potassium (K+) ions. The model exhibited K+/K+ exchange but little Na+/Na+ exchange unless the energy available from the splitting of adenosine triphosphate (ATP) was reduced, mimicking the behavior seen in squid giant axon. The vectorial ionic activation curves were voltage dependent, resulting in large shifts in apparent Km's with depolarization. At potentials more negative than the equilibrium or reversal potential transport was greatly diminished unless the free energy of ATP splitting was reduced. While the pump reversal potential is at least 100 mV hyperpolarized relative to the resting potential of most cells, the voltage-dependent distribution of intermediate forms of the enzyme allows the possibility of considerable slope conductance of the pumpI–V relation in the physiological range of membrane potentials. Some of the vectorial properties of an electrogenic sodium pump appear to be inescapable consequences of the nonvectorial properties of the isolated enzyme. Future application of this approach should allow rigorous quantitative testing of interpretative ideas concerning the mechanism and stoichiometry of the sodium pump.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01870503
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  • 6
    Electronic Resource
    Electronic Resource
    A study of several blue-green algae in the electron microscope (1962)
    Springer
    Archives of microbiology 44 (1962), S. 311-322 
    Details
    ISSN: 1432-072X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary All of the three blue-green algae, Anabaena cylindrica, Mastigocladus laminosus and Nostoc muscorum are characterized by the presence of multi-layered envelopes (sheath, wall and plasma membrane), photosynthetic lamellae and a variety of intracellular granules. Sections of heterocysts of Anabaena cylindrica showed the presence of an internal membrane system as well as lamellae. An unusual feature of the structure of Nostoc muscorum was the presence of densely stained intracellular membranes or lamellae. The results emphasize the variability in appearance of the internal structure of the blue-green algae and point to the need for detailed investigations of the influence of change in physiological environment on the anatomy of these organisms.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00510951
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  • 7
    Electronic Resource
    Electronic Resource
    A Device for visualizing the Pattern of Plane Polarized Light from Blue Sky (1958)
    [s.l.] : Nature Publishing Group
    Nature 181 (1958), S. 1393-1394 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The direction of certain flights of the beetle, Melolontha, appears to be influenced by the pattern of polarized sky light2. As a result of considering the possibility of a similar mechanism in the flight orientation of bark and ambrosia beetles (Scolytidae) at times, a method by, which the human ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/1811393a0
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  • 8
    Electronic Resource
    Electronic Resource
    Interpretation of Cosmic Noise Measurements at 3.8 Mc./s. from Satellite 1960 ηI (1961)
    [s.l.] : Nature Publishing Group
    Nature 191 (1961), S. 480-480 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The variation of cosmic noise across the sky can be removed from the field-strength data by plotting noise-field contours along the orbit, using one of the sky maps such as that computed by Steiger and Warwick at 18 Mc./s. (ref. 2). The field-strengths can then be normalized to a standard value of ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/191480a0
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  • 9
    Electronic Resource
    Electronic Resource
    The standardization of estrogen receptors
    Amsterdam : Elsevier
    The @Journal of Steroid Biochemistry and Molecular Biology 45 (1993), S. 367-373 
    Details
    ISSN: 0960-0760
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0960-0760(93)90005-H
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  • 10
    Electronic Resource
    Electronic Resource
    Sex differences in incidental recall for words and pictures
    Amsterdam : Elsevier
    Learning and Individual Differences 2 (1990), S. 263-285 
    Details
    ISSN: 1041-6080
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Education , Psychology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/1041-6080(90)90006-3
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