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  • 1
    Electronic Resource
    Electronic Resource
    Femtosecond four wave mixing spectroscopy of conjugated polymers (1993)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 99 (1993), S. 1597-1606 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Time-resolved four wave mixing (4WM) signals of conjugated polymers are calculated using a density matrix approach and the Hartree–Fock approximation. The influence of the Coulomb interaction as well as size effects on the nonlinear optical response are examined. For the Hückel model (no Coulomb interaction), quantum beats due to the coherent excitation of several band states are found for small sizes, and photon echo-like behavior is obtained for infinite size. The Coulomb interaction changes the nature of the response and gives rise to a broad delayed signal whose temporal profile is determined by the dephasing time.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.465328
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  • 2
    Electronic Resource
    Electronic Resource
    PANTOPRAZOLE AND 24-HOUR INTRAGASTRIC ACIDITY (1993)
    Oxford, UK : Blackwell Publishing Ltd
    Alimentary pharmacology & therapeutics 7 (1993), S. 0 
    Details
    ISSN: 1365-2036
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2036.1993.tb00077.x
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  • 3
    Electronic Resource
    Electronic Resource
    Single intravenous administration of the H+, K+-ATPase inhibitor BY 1023/SK&F 96022—inhibition of pentagastrin-stimulated gastric acid secretion and pharmacokinetics in man (1990)
    Oxford, UK : Blackwell Publishing Ltd
    Alimentary pharmacology & therapeutics 4 (1990), S. 0 
    Details
    ISSN: 1365-2036
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The effects of the H+, K+-ATPase inhibitor BY 1023/SK&F 96022 on pentagastrin-stimulated acid secretion have been studied in healthy male volunteers (n= 12). The gastric acid response to submaximal pentagastrin-stimulation (0.6 μg/h/kg b.w.) was dose-dependently inhibited. A single dose of 5 mg decreased acid output by 22% while after 60 mg and 80 mg secretion was almost completely abolished.A good dose linearity was observed for AUC (0, 〉) and Cmax over the dose range from 5 to 80 mg. Elimination half-life, total clearance and volume of distribution of the parent compound were independent of the dose.The drug was well tolerated up to the highest dose of 80 mg. No clinically relevant influence was found on either laboratory screen or cardiovascular parameters.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2036.1990.tb00468.x
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  • 4
    Electronic Resource
    Electronic Resource
    On integer points in polyhedra (1992)
    Springer
    Combinatorica 12 (1992), S. 27-37 
    Details
    ISSN: 1439-6912
    Keywords: 52 A 25 ; 90 C 10
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract We give an upper bound on the number of vertices ofP I , the integer hull of a polyhedronP, in terms of the dimensionn of the space, the numberm of inequalities required to describeP, and the size ϕ of these inequalities. For fixedn the bound isO(m n ϕ n− ). We also describe an algorithm which determines the number of integer points in a polyhedron to within a multiplicative factor of 1+ε in time polynomial inm, ϕ and 1/ε when the dimensionn is fixed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01191202
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  • 5
    Electronic Resource
    Electronic Resource
    A topological characterization for closed sets under polar duality in ℚ n (1990)
    Springer
    Mathematical programming 49 (1990), S. 281-283 
    Details
    ISSN: 1436-4646
    Keywords: Linear duality ; polar duality ; closed sets
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science , Mathematics
    Notes: Abstract A topological characterization is given for closed sets in ℚ n under the restriction of (cone) polar duality to ℚ n .
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01588793
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  • 6
    Electronic Resource
    Electronic Resource
    Study of circulating immune complexes in three hematologic diseases: Acute myeloid leukemia, acute lymphatic leukemia, and hematosarcoma (1980)
    Springer
    Cancer immunology immunotherapy 8 (1980), S. 161-166 
    Details
    ISSN: 1432-0851
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Circulating immune complexes (CIC) were detected by means of the polyethylen glycol (PEG) precipitation method, in the serum of untreated patients with hematologic diseases including acute myeloid leukemia (AML), acute lymphatic leukemia (ALL) and hematosarcoma (HS). Immunoglobulins (Ig) and the C 4 fraction of complement were quantitated in the precipitate dissociated by potassium cyanate (KCNO) and in the serum. When compared to control sera, the results showed a simultaneous increase of both precipitate and Ig component. The proportion of each Ig in the precipitate was stable for the controls but variable for the patients. On the whole precipitated proteins, 30% were systematically quantitated in patients and controls. In the remaining portion were noticed Clq and C 3 fractions of complement as well as haptoglobin and albumin. The nature of the antigen was discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00205667
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  • 7
    Electronic Resource
    Electronic Resource
    The influence of different levels of PEEP on peripheral tissue perfusion measured by subcutaneous and transcutaneous oxygen tension (1992)
    Springer
    Intensive care medicine 18 (1992), S. 474-478 
    Details
    ISSN: 1432-1238
    Keywords: Subcutaneous oxygens tension ; Transcutaneous oxygen tension ; Tissue perfusion ; PEEP ; Cardiac output ; Oxygen delivery
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Objective To compare subcutaneous (PscO2) and transcutaneous (PtcO2) oxygen tension measurements in relation to hemodynamic variables at different levels of PEEP, and to evaluate the usefulness of these measurements as monitors of peripheral tissue perfusion. Design Prospective trial. Setting Intensive care unit in a university hospital. Patients Seven patients with gastric cancer who where undergoing total gastrectomy. Interventions Silicone catheter was placed in the upper arm and transcutaneous oxygen monitor was placed on the upper part of the chest. A pulmonary artery catheter was placed in the right pulmonary artery. Measurements and results PscO2 and PtcO2 together with hemodynamic variables were measured at different levels of PEEP. Progressive increase of PEEP reduced cardiac index (CI) (p〈0.05) with a concomitant decrease of PscO2 (p〈0.05) and oxygen delivery (DO2) (p〈0.05). Changes in PtcO2 parallelled changes in arterial oxygen tension (PaO2), but no correlation was found between PtcO2, CI and DO2. Conclusion PscO2 is a sensitive indicator of subcutaneous tissue perfusion, which can be used to identify the PEEP level, with optimum peripheral perfusion. PscO2 seems to be a more reliable indicafor of tissue perfusion than PtcO2.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01708584
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  • 8
    Electronic Resource
    Electronic Resource
    Insulin receptors in syncytitrophoblast and fetal endothelium of human placenta. Immunohistochemical evidence for developmental changes in distribution pattern (1994)
    Springer
    Histochemistry and cell biology 101 (1994), S. 277-285 
    Details
    ISSN: 1432-119X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract The localisation of insulin receptors (IR) was investigated on cryosections of human non-pathologic first trimester and full term placentae by indirect immunohistochemistry with three different monoclonal antibodies (MABS). In placentae from 6 to 10 weeks post-menstruation (p-m.), only syncytiotrophoblast was stained, predominantly that of mesenchymal villi and syncytial sprouts, which are areas of high proliferative activity. In placentae from 11 to 14 weeks p-m., endothelial cells commenced to react with the IR MABS and the syncytiotrophoblast was less intensely labelled than at weeks 6 to 10 p-m. In term placentae, the microvillous membrane of the syncytiotrophoblast showed only patches of weak immunoreactivity. In contrast, the endothelial cells in the placenta but not in the umbilical cord were strongly stained. The amniotic epithelium in the chorionic plate and fibroblasts in the stroma were conspicuously labelled. The data indicate: (1) the receptor density on villous syncytiotrophoblast decreases and that of fetal endothelium increases throughout gestation; (2) syncytiotrophoblast of human term placentae expresses a low level per unit area of surface IR; and (3) the majority of IR in human term placentae is located in fetal endothelium. Apart from yet unknown functional effects of maternal and fetal insulin at the placental barrier, the results suggest a growth promoting effect on the trophoblast of maternal insulin in first trimester as well as developmental effects of fetal insulin on the feto-placental vessels at term.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00315915
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  • 9
    Electronic Resource
    Electronic Resource
    Umschriebene Sudomotorenkrisen im Ulnarisareal der linken Hand (1980)
    Springer
    European archives of psychiatry and clinical neuroscience 228 (1980), S. 183-190 
    Details
    ISSN: 1433-8491
    Keywords: Vegetative nervous system ; Sweating ; Vasomotor dysregulation ; Vegetative fits ; Ulnar nerve lesions ; Vegetatives Nervensystem ; Schwitzen ; Vasomotorenstörung ; Vegetative Anfälle ; Ulnarisläsionen
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Zwei Fälle von zirkumskripten sudomotorischen und vasomotorischen Paroxysmen an der Ulnarseite der linken Hand (Gebiet der Rami dorsales manus und der Nervi digitorum dorsales) werden beschrieben. Die Störungen traten, ohne klinisch evidente Vorschädigung, jeweils um das 10. Lebensjahr herum auf. Als Ursache der Krankheit wird eine überschießende visceral-efferente Fehlregeneration nach unbekannter Schädigung des Nervus ulnaris in der Kindheit diskutiert.
    Notes: Summary Two patients with circumscribed sudomotor and vasomotor attacks in the area of the ulnar nerve of the left hand are described. The onset of the disease in both cases occurred at approximately 10 years of age. Etiology is discussed in terms of an excessive and erroneous visceral-efferent regeneration after unknown trauma of the ulnar nerve during childhood.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00365605
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  • 10
    Electronic Resource
    Electronic Resource
    Detection of damaged membranes in alkali chloride electrolysers (1994)
    Springer
    Journal of applied electrochemistry 24 (1994), S. 1201-1205 
    Details
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract Holes in cation exchange membranes of alkali chloride cells can have a number of different causes. They do not represent a source of great danger during operation of a membrane electrolyser as long as their number is limited or their combined diameter does not exceed a certain size. Of the different methods for detection of holes in membranes, two procedures are described in detail: the cell voltage test and the leak test with measurement of the gas flow through the holes. The cell voltage test is performed with low time consumption during start-up of an electrolyser. It mainly shows the large membrane holes in a cell. In contrast to this, with the leak test all holes in a membrane are detected. However, the procedure is time consuming and is possible only with a totally drained electrolyser. It is recommended to perform these tests immediately after installing new membranes and then from time to time in order to avoid damage to the cells or to the plant chlorine system.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00249882
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