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  • Springer  (289)
  • American Society of Hematology  (37)
  • International Union of Crystallography  (12)
  • 2020-2020
  • 2005-2009  (180)
  • 1975-1979  (118)
  • 1930-1934
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  • 1
    ISSN: 1618-2650
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 2
  • 3
    Publication Date: 2005-11-16
    Description: BACKGROUND: Angiogenesis and activation of coagulation system in cancer patients are common and are thought to be unfavorable clinical parameters. Vascular endothelial growth factor (VEGF) and fibroblast growth factor (bFGF) are well-known angiogenic cytokines. The elevations of plasma fibrinogen and D-dimer level indicate coagulation and fibrinolysis activation. There may be links between angiogenic cytokines and coagulation - fibrinolysis factors in cancer. Possible specific interactions include releasing angiogenic factors, such as VEGF by activated platelets and binding of VEGF and bFGF to fibrin and fibrinogen resulting in an increase in endothelial cell proliferation. AIM: The purpose of our study was: (a) to analyze relations of VEGF, bFGF serum levels and fibrinogen, D-dimer plasma levels with stage of disease according to Ann Arbor Staging System (AASS); (b) to evaluate correlation between serum levels of angiogenic cytokines and plasma levels of coagulation-fibrinolysis factors in non Hodgkin’s lymphoma patients. MATERIAL AND METHODS: 52 non Hodgkin’s lymphoma patients (31 men, 21 women; median age 52,1 ± 14,7 years) in II, III or IV stage of disease according to AASS were assessed. In stage II were 15, in stage III- 10 and in stage IV- 27 persons. Serum VEGF, bFGF and plasma D-dimer levels were measured by enzyme-linked immunosorbent assay (ELISA). Plasma levels of fibrinogen were determined using Behring Coagulation System (BCS) equipment. RESULTS: Plasma level of D-dimer was elevated in majority of patients, mean plasma D-dimer levels [ng/ml] were in stage II: 1654,3 ± 1301,5, in stage III: 1816,6 ± 1370,7, in stage IV: 2747,1 ± 1410,8. There was significantly higher D-dimer level in IV stage of disease in comparison to stage II and III. p
    Print ISSN: 0006-4971
    Electronic ISSN: 1528-0020
    Topics: Biology , Medicine
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Monatshefte für Mathematik 39 (1932), S. 359-370 
    ISSN: 1436-5081
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Monatshefte für Mathematik 40 (1933), S. A12 
    ISSN: 1436-5081
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Monatshefte für Mathematik 80 (1975), S. 161-170 
    ISSN: 1436-5081
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract In Part 1 we obtained lower and upper bounds of the expressionf(M φ(x;α),M ψ(y;α))−M χ(f(x,y);α) by replacing the given sets(x)=(x 1,...,x n ),(y)=(y 1,...,y n ) by two suitably chosen sets ((u)=(u 1,...,u m ),(v)=(v 1,...,v m ), in general withm≥4. Now, in the case of upper bounds, the numberm will, under additional hypotheses, be reduced tom=3 (§ 4) and finally tom=2 (§ 5). Inequalities, complementary to the inequalities of Hölder and Minkowski and to another inequality are given as illustrations.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Monatshefte für Mathematik 83 (1977), S. 177-189 
    ISSN: 1436-5081
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract Using symmetric forms $$M_{k_1 ,...,k_p } : = (1/A(n))\,\sum\limits_{v_1 ,...,v_p } {a_{v_1 }^{k_1 } ...a_{v_p }^{k_p } } $$ A(n)=number of terms of the sum,a ν〉0,k i≠0,i=1,...,n) the meansm k 1,...,kp:=(Mk 1,...,kp1/(k1+...+kp)(k1+...+kp≠0) are formed and investigated as to monotonicity under the hypothesis that the exponentsk 1,...,k p are certain linear functions of only one parameterk(k i =λ i k+β 1,λ i 〉0,β 1+...β p =0). (The means $$m_{\lambda _1 k_1 ,...,\lambda _1 k_p } $$ , e. g., are increasing ifk is increasing.) The proofs are elementary and use the known method of positive logarithmically convex (or concave) sequences and certain generalizations of Muirhead's theorem.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Journal of ornithology 120 (1979), S. 237-246 
    ISSN: 1439-0361
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Summary During three trips across the Tanezrouft desert, in spring 1973 and 1977 (Fig. 1), migrating palaearctic birds were observed and fallouts recorded (Tab. 1). ForStreptopelia turtur, Merops apiaster, Calandrella brachydactyla, Oenanthe oenanthe, andCercotrichas galactotes regular intermediate stops in the desert are discussed. 20 exhausted or dead migrants, and 18 control birds, were analyzed for fat content, water content (Tab. 2), and chlorinated hydrocarbon residues. Small birds in Tanezrouft had failed because of exhausted fat stores, larger birds apparently because of water deprivation, while their fat reserves were not exhausted. Pesticide residues had no demonstrable influence on mortality. All migrants in the desert had low water indices. 42 (4 %) out of 1062 observed migrants (only a small fraction of the total number of migrating birds at the same localities and at the same time) had failed. The real mortality rate during the crossing of the western Sahara might usually be far below these 4 %, and especially low in some species, e. g.Merops apiaster, Calandrella brachydactyla, Cercotrichas galactotes, warblers.
    Notes: Zusammenfassung Bei drei Durchquerungen der Tanezrouft-Wüste im März und April 1973 und 1977 wurden durchziehende paläarktische Vögel beobachtet, gezählt und Verluste erfaßt. FürStreptopelia turtur, Merops apiaster, Calandrella brachydactyla, Oenanthe oenanthe, Cercotrichas galactotes wird die Möglichkeit regelmäßiger Zwischenlandungen diskutiert. 20 erschöpft gegriffene oder tot gefundene Durchzügler sowie 18 Kontrolltiere wurden u. a. auf Fettgehalt, Wassergehalt und Rückstände chlorierter Kohlenwasserstoffe untersucht. Kleinvögel waren in der Tanezrouft am aufgezehrten Fettdepot gescheitert, größere Vögel am Wasserverlust bei hohen Fettreserven. Biozidrückstände waren ohne nachweisbaren Einfluß auf die Mortalität. Die Wasserindices aller untersuchten Durchzügler aus der Wüste waren erniedrigt. Von 1062 beobachteten Zugvögeln (das ist nur ein Bruchteil der dort in der Beobachtungszeit zu erwartenden Durchzügler) hatten 42 (4 %) versagt. Die tatsächlichen Mortalitätsraten bei der Überquerung der Westsahara dürften gewöhnlich weit unter diesen 4 % liegen, besonders niedrig bei manchen Arten, wieMerops apiaster, Calandrella brachydactyla, Cercotrichas galactotes, Grasmücken- und Laubsängerarten.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Colloid & polymer science 256 (1978), S. 415-415 
    ISSN: 1435-1536
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Journal of applied electrochemistry 7 (1977), S. 239-245 
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract The electro-reduction of oxygen is effectively catalysed by metal chelates of the N4-type. The mechanism of this process has been found to be a modified ‘redox catalysis’. O2 molecules and the products of their reaction, at least up to H2O2, remain strongly co-ordinated to the central metal ion of the chelates XMeII. The potential-determining step, which regenerates the reduced form, is the following: (XMeIII...O2H)++H++ 2e→XMeII+H2O2. H2O2 is further decomposed via the catalase action of the electrocatalyst. The mechanism is confirmed by experimental results with iron phthalocyanine (FePc) and cobalt-dibenzotetraazaannulene (CoTAA) as a O2-slurry electrode at various O2 pressures. The latter shows anodic reaction-limited currents, which seem to involve also oxygen-containing intermediates. The implication of the presented mechanism in regard to other electrochemical processes is discussed briefly.
    Type of Medium: Electronic Resource
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