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  • 1
    Electronic Resource
    Electronic Resource
    Erratum: The effect of reagent excitation on the dynamics of the reaction O(1D2)+H2→OH(X 2P)+H [J. Chem. Phys. 95, 8038 (1991)] (1992)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 96 (1992), S. 6324-6324 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.462910
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  • 2
    Electronic Resource
    Electronic Resource
    The effect of reagent excitation on the dynamics of the reaction O(1D2)+H2→OH(X 2Π)+H (1991)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 95 (1991), S. 8038-8047 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The effect of H2 translational, rotational, and vibrational excitation on the dynamics of the O(1D2)/H2 reaction are explored in a semiclassical trajectory study involving both of the energetically accessible potential energy surfaces of the system. Landau–Zener probabilities determine surface hopping. At low reagent excitation, the deep H2O potential minimum dominates the dynamics, causing the reagents to reorient towards a H–O–H (insertion) configuration and form the H2O intermediate, irrespective of the initial approach geometry. High vibrational excitation enhances the probability for transitions onto the excited state potential during the interaction. Reactions which sample the excited state potential have fundamentally different dynamics from those which remain on the lower state. For reactions involving H2(v=4), the OH product has a bimodal vibrational distribution, peaking in OH(v'=2) and OH(v'=9). The lower peak is due to reactions which access the excited state potential; the higher peak results from those which remain on the lower state for the entire interaction. High translational excitation shortens the interaction time and reduces the effect of the potential minimum to reorient the reagents. Rotational excitation also reduces the effect of the potential minimum by causing the system to rotate out of the insertion geometry before entering the potential minimum.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.461284
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  • 3
    Electronic Resource
    Electronic Resource
    Compact standalone data acquisition system for submicrosecond time-resolved Fourier transform spectroscopy (1993)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 64 (1993), S. 2508-2514 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: We report the development of a data acquisition system which can be used with any commercial Michelson interferometer to carry out time-resolved Fourier transform spectroscopy with a time resolution of one microsecond. The sensitivity and spectral resolution of the experiment are limited only by the interferometer. The instrument occupies one slot on a conventional VME enclosure (6U height). It includes all hardware and firmware to control the experiment which generates the spectral transients and to collect the time-resolved interferograms. We are presently transferring this design to a single 6U height printed circuit board (with a mezzanine), in order to make it available as a standalone system for use with any VME platform.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1143912
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  • 4
    Electronic Resource
    Electronic Resource
    The effect of reagent translational excitation on the dynamics of the reaction H+Cl2→HCl(v',J')+Cl (1994)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 100 (1994), S. 1075-1084 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: We use fast time-resolved Fourier transform spectroscopy and low pressure infrared chemiluminescence techniques to determine the product energy distribution in the title reaction. We create the reagent hydrogen atoms with 2.3 eV of translational excitation by photofragmentation of H2S at 193 nm, and observe the time evolution of the infrared chemiluminescence from the product HCl(v',J') under single gas kinetic collision conditions. The initial vibrational distribution, determined from the first observation after creation of the H atoms is P(v'=1:2:3:4:5:6:7:8)=1.0:0.84:0.74:0.59:0.34:0.24:0.17:0.13. The initial HCl rotational distribution in each vibrational level is broad, showing no identifiable maximum. The fraction of the total available energy entering HCl vibration and rotation, respectively, are 0.19 and 0.10. The time evolution of the observed vibrational and rotational distributions gives information about the changes in the reaction dynamics consequent on reduction of the reagent translational energy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.466639
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  • 5
    Electronic Resource
    Electronic Resource
    Quantitation of the interaction of protein kinase C with diacylglycerol and phosphoinositides by time-resolved detection of resonance energy transfer (1993)
    s.l. : American Chemical Society
    Biochemistry 32 (1993), S. 13310-13317 
    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/bi00211a044
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  • 6
    Electronic Resource
    Electronic Resource
    Classification and severity of postdural puncture headache (1993)
    Oxford, UK : Blackwell Publishing Ltd
    Anaesthesia 48 (1993), S. 0 
    Details
    ISSN: 1365-2044
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Two hundred and five patients, aged 16–45 years, undergoing day care surgery were given a spinal anaesthetic using either a 26-or a 27-gauge Quincke point spinal needle. The occurrence of headache and accompanying symptoms postoperatively was analysed from 186 returned questionnaires. The incidence of classical postdural puncture headache was 4.5% following the use of a 26-gauge needle and 8% with a 27-gauge needle (p 〉 0.05). A further group of patients suffering headache after dural puncture was identified, the postdural puncture-related headache. The headache and accompanying symptoms were similar to that seen with a postdural puncture headache except that it was not aggravated by posture. A system of grading the severity of both type of headache is presented and standardised criteria for the classification of postdural puncture headache are proposed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2044.1993.tb07589.x
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  • 7
    Electronic Resource
    Electronic Resource
    Der Cholesteringehalt des Eieröls (1915)
    Springer
    European food research and technology 29 (1915), S. 9-10 
    Details
    ISSN: 1438-2385
    Source: Springer Online Journal Archives 1860-2000
    Topics: Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02025250
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  • 8
    Electronic Resource
    Electronic Resource
    Demonstration of specifically sensitized lymphocytes in patients treated with an aqueous mistletoe extract (Viscum album L.) (1991)
    Springer
    Journal of molecular medicine 69 (1991), S. 397-403 
    Details
    ISSN: 1432-1440
    Keywords: Mistletoe extracts ; Specific lymphocyte proliferation ; Lectin-induced cytotoxicity ; Anti-ML antibodies
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Lymphocytes of 25 patients treated with an aqueous mistletoe extract (Viscum album L.) for up to 6 months (group 1), up to 2 years (group 2), and more than 2 years (group 3) were examined in 3- and 7-day cultures for specifically sensitized lymphocytes. The whole extract (HM), the lectin-polysaccharide fraction (HM-LP), and the ‘viscotoxin’ fraction (HM-V) were added at concentrations ranging from 0.5 μg to 12.5 mg extract/ml. Lymphocytes from four of the nine group 2 patients and five of the ten group 3 patients reacted specifically with HM and HM-LP at an optimal dose of 5.0 mg/ml, but did not react with HM-V. Stimulation indices varied between 1.6 and 16. In the patients of group 3 this effect was observed only when their lymphocytes were costimulated in the 3-day cultures with phytohem-agglutinin (PHA), in contrast to the four patients of group 2 who reacted only in the 7-day cultures with HM-LP without PHA co-stimulation. Patients' lymphocytes had to be protected from mistletoe lectin-induced cytotoxicity by the addition of their own sera containing anti-mistletoe lectin antibodies. Lymphocytes from tumor patients (n=18) never treated with mistletoe extracts and healthy individuals (n=18) showed no specific proliferative response when tested in 3- and 7-day cultures. The production of granulocyte-macrophage colony-stimulating factor (GM-CSF) and interferon-γ (IFN-γ) was measured in the supernatants of lymphocyte cultures from all 25 patients and 36 controls exposed to HM, HM-LP, and HM-V in 3- and 7-day cultures. An increase of GM-CSF (up to 140%) was found only in those patients who responded specifically to the extract, while none of them produced increasing amounts of IFN-γ. These findings imply that a sub-population of T-helper cells may have been stimulated in the course of mistletoe therapy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01647413
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  • 9
    Electronic Resource
    Electronic Resource
    Anti-mistletoe lectin antibodies are produced in patients during therapy with an aqueous mistletoe extract derived fromViscum album L. and neutralize lectin-induced cytotoxicity in vitro (1990)
    Springer
    Journal of molecular medicine 68 (1990), S. 896-900 
    Details
    ISSN: 1432-1440
    Keywords: Anti-lectin-antibodies ; Antibodiesagainst mistletoe extract ; Lectin-induced cytotoxicity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The humoral response components of an aqueous mistletoe extract (HM) was evaluated in 23 tumor patients who had been treated from 2 months up to 6 years with increasing dosages of HM. IgG antibodies against mistletoe lectin and other components of this extract were detected by ELISA, immunodiffusion, and blotting technique, using either the aqueous extract (HM) or a purified lectin preparation (ML). Their activity depended upon dosage of HM and length of therapy. No anti-HM/ML antibodies of the IgM type could be detected. Immunoblotting revealed lectin-specific antigens at 62 kD, 33k D, and 29 kD. In the presence of ML or HM, PHA-induced proliferation of normal lymphocytes was decreased in a dosedependent manner; this effect was neutralized by adding the IgG fraction from pooled anti-HM-antibody-positive sera, indicating that the cytotoxic effect of lectins was eliminated by these specific antibodies. In view of these findings, it is questionable whether exposing tumor cells to mistletoe extracts in vivo exerts the same direct effect on tumor cells that is observed in vitro.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01649034
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  • 10
    Electronic Resource
    Electronic Resource
    A comparative study on antibodies to nucleoli and 5-hydroxytryptamine in patients with fibromyalgia syndrome and tryptophan-induced eosinophilia-myalgia syndrome (1994)
    Springer
    Journal of molecular medicine 72 (1994), S. 541-549 
    Details
    ISSN: 1432-1440
    Keywords: Eosinophilia myalgia syndrome ; Fibromyalgia syndrome ; Anti-serotonin antibodies ; Anti-ganglioside antibodies ; Anti-phospholipid antibodies ; Anti-nucleolar antibodies
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Eosinophilia myalgia syndrome (EMS) has been related to intake of “contaminated” L-tryptophan, and an alteration in tryptophan 5-hydroxytryptamine (5-HT, serotonin) metabolism has been reported in EMS patients. Recently we found that a defined autoantibody pattern consisting of antibodies to nucleoli, gangliosides, and phospholipids is closely related to the fibromyalgia syndrome (FS) which clinically resembles the EMS. We were therefore interested to see whether these antibodies can also be detected in patients with EMS. Studied were 27 patients with acute EMS (13 of whom were also examined 2 years after acute onset), 100 patients with FS, and 40 patients with progressive systemic sclerosis (PSS). As controls, sera from 100 blood donors were analyzed. Antibodies to nucleoli were demonstrated by immunofluorescence test on cell cultures in 52% of patients with acute EMS, 62% of patients with chronic EMS, and 37% of FS patients. Western blotting with a nuclear extract from HeLa cells revealed in both diseases the same epitopes at 63, 57, and 53 kDa. Antibodies to 5-HT, gangliosides (Gm1), and phospholipids were determined by enzyme-linked immunosorbent assay. Among patients with FS 73% had antibodies to 5-HT, in contrast to only 19% of patients with acute EMS. However, 77% of the 13 EMS patients analyzed 2 years later had become anti-5-HT antibody positive during that time. Also the incidence of antibodies to Gm1 increased from 37% at acute onset to 69% in patients with chronic EMS (30%). The various antibodies were detected in only 18% of healthy controls. Serum 5-HT levels were decreased in patients with acute EMS compared to those with chronic EMS or FS. In patients with PSS they were significantly increased. It is concluded that EMS may have been developed in patients with FS who may have reacted in an allergic manner to a more immunogenic (“contaminated”) L-tryptophan.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00207485
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