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  • 1
    Electronic Resource
    Electronic Resource
    SODA: The reduced database for the TdeV tokamak : Proceedings of the eleventh topical conference on high temperature plasma diagnostics (1997)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 68 (1997), S. 955-958 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: SODA which stands for Système d'Organisation des Données et d'Analyse, is a general database for TdeV. SODA has the following goals: to produce a database of a reduced set of physical data; to ensure that these data are validated; to record all the parameters relevant to tokamak operation and experiments; to facilitate the retrieval of data using given selection criteria; and to improve data accessibility and analysis. The relational database ORACLE™ has been chosen to provide flexibility and to accommodate the increasing expectations of the TdeV researchers. In-house expertise allows custom-made tables and centralized data management. In the process of creating SODA several new interfaces for the scientific coordinator, machine operator, and diagnosticians have been added to provide a better definition of the experiment for the archiving system. The database includes the more relevant machine and diagnostic parameters, plasma perturbations (rf, biasing, gas...), mean and standard deviation of physical signals, plasma profiles, and code results (equilibrium...) for selected time windows in a discharge. Users of the X-window interface of SODA are not required to know the database structure or the SQL language. SODA has been operating successfully for over a year and its capabilities are continuously expanding. © 1997 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1147724
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  • 2
    Electronic Resource
    Electronic Resource
    Fate of carbofuran in a model ecosystem (1974)
    s.l. : American Chemical Society
    Journal of agricultural and food chemistry 22 (1974), S. 431-434 
    Details
    ISSN: 1520-5118
    Source: ACS Legacy Archives
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jf60193a036
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  • 3
    Electronic Resource
    Electronic Resource
    Improved current transport properties of post annealed Y1Ba2Cu3O7−x thin films using Ag doping (1996)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 79 (1996), S. 7062-7068 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The influence of Ag doping on the transport properties of Y1Ba2Cu3O7−x thin films prepared by Y, BaF2, and Cu co-evaporation and optimized ex situ post annealing has been investigated. Both undoped and Ag doped films have values of Tc above 90 K, but Jc (77 K) is highly dependent on the nominal thickness (tnom) of the as-deposited film. For undoped films with tnom≤300 nm Jc (77 K) ((very-much-greater-than)106 A/cm2) decreases monotonically with increasing film thickness. Above 300 nm Jc (77 K) decreases rapidly to values below 5×105 A/cm2. Ag doped films with tnom≥200 nm have higher Jc (77 K) values than those of undoped films. Ag doped films have a maximum in Jc (77 K) around 250 nm. As for the undoped films, there is a large decrease in Jc (77 K) for Ag doped films with tnom≥300 nm. It was found that the higher values of Jc (77 K) for the Ag doped films were due to a better epitaxial growth of the YBCO compound. The low values of Jc (77 K) for both undoped and Ag doped single layer films with tnom≥300 nm were found to be due to the absence of 1–2–4 inclusions in these films. Based on these findings high Jc (77 K) films with tnom(approximately-greater-than)300 nm were grown by successive deposition and annealing of films with tnom〈300 nm on top of each other. A 2×150 nm undoped film was found to have a Jc (77 K) value of 4, 1×106 A/cm2. This is almost a doubling of the Jc (77 K) value as compared to the value for the 300 nm single layer undoped film (2,2×106 A/cm2). Ag doped double layer films of 2×150 nm and 2×215 nm had comparable Jc (77 K) values (5,8×106 and 5,6×106 A/cm2, respectively). In comparison with the undoped 2×150 nm film Jc (77 K) is thus further increased (by about 50%) when doping with Ag. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.361473
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  • 4
    Electronic Resource
    Electronic Resource
    Intermediates in nucleophilic aromatic substitution. VII. Kinetic, calorimetric, and proton magnetic resonance studies of the formation of Meisenheimer complexes of the isomeric 2,4,6-dicyanonitroanisoles (1970)
    s.l. : American Chemical Society
    The @journal of organic chemistry 35 (1970), S. 287-295 
    Details
    ISSN: 1520-6904
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jo00827a001
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  • 5
    Electronic Resource
    Electronic Resource
    Preparation and Electronic Structure of Substituted Aromatic Dithiolene Complexes of Gold(III) (1995)
    s.l. : American Chemical Society
    Inorganic chemistry 34 (1995), S. 3688-3694 
    Details
    ISSN: 1520-510X
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ic00118a016
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  • 6
    Electronic Resource
    Electronic Resource
    Modification of Ni(111) reactivity toward CH4, CO, and D2 by two-dimensional alloying (1996)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 104 (1996), S. 7289-7295 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Alloying Au into the outermost atomic layer of Ni(111) significantly alters the physical and chemical properties of the surface. The reactivity is investigated by the use of seeded supersonic molecular beams of CH4 and it is found that the nobleness of Au reduces the overall reactivity toward CH4. This is accounted for in an ensemble model resolving the sticking probability on Ni atoms having different nearest neighbor surroundings. Although a mean field description of site distributions is found to be a very good approximation it is improved by using experimentally determined ensemble statistics from STM images. The strong influence of the vibrational temperature on the sticking coefficients of CH4 vs translational energy on the pure Ni(111) is also demonstrated. Desorption energies of CO and D2 is observed to decrease approximately 25–30 kJ/mole as the coverage of Au is increased from 0.0 to 0.7 ML. In TPD spectra of deuterium saturated surface alloys a new clearly resolved desorption state is observed at 180–220 K with maximum intensity around θAu=0.3–0.4 ML. This state is clearly related to chemisorption sites involving both Au and Ni. A site model based on mean field statistics adequately accounts for the appearance of this state. The effect of Au is also evident in the TPD spectra of CO saturated Au/Ni(111) surface alloys where the saturation coverage decreases and new structure develops. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.471395
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  • 7
    Electronic Resource
    Electronic Resource
    Carbonium ion formation by oxidation of hydrocarbons by fluorosulfonic acid solutions (1974)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 96 (1974), S. 2284-2285 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja00814a067
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  • 8
    Electronic Resource
    Electronic Resource
    Dissociative sticking of CH4 on Ru(0001) (1999)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 110 (1999), S. 2637-2642 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: In this study the CH4 dissociation probability on Ru(0001) is found for various translational and vibrational energies. The absolute sticking values are determined from King and Wells experiments and carbon uptake curves. The carbon amount is determined from the recombination signal of carbon with oxygen obtained after the beam exposure when heating in an oxygen atmosphere. The measured sticking coefficient of CH4 is strongly enhanced both by increasing the translational and the vibrational energy of the CH4 molecule. A model is applied to the data and an estimate of the thermal activation energy for CH4 dissociation is found to be in good agreement with previous bulb experiments. © 1999 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.477985
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  • 9
    Electronic Resource
    Electronic Resource
    Crossreactivity and T-cell epitope specificity of Bet v 1-specific T cells suggest the involvement of multiple isoallergens in sensitization to birch pollen (1997)
    Oxford, UK : Blackwell Publishing Ltd
    Clinical & experimental allergy 27 (1997), S. 0 
    Details
    ISSN: 1365-2222
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background Allergen-specific T lymphocytes play an important role in the pathophysiology of atopic disease. Detailed studies of their epitope-specificity and crossreactivity are required for the development of novel approaches for specific immunotherapy.Objectives The aim of the study was to characterize the fine specificity of Bet v 1-specific T cells from allergic donors.Methods Polyclonal T-cell lines (TCL) and T-cell clones (TCC), specific for Bet v 1, the major birch (Betula verrucosa) pollen allergen, were isolated from the peripheral blood of three birch-allergic patients. Their epitope-specificity was studied using overlapping synthetic peptides, and crossreactivity with other tree pollen allergens of the Fagales order was evaluated. In addition, the Bet v 1-specific TCC were studied for their phenotype and cytokine production.Results All isolated Bet v 1-specific TCC (19/21 CD4+, 2/21 CD8+) reacted with affinity purified Bet v 1, but showed different reactivities with recombinant Bet v 1 (rBet v 1), and with group 1 allergens from other Fagales species. Epitope mapping of rBet v 1-reactive TCC with synthetic peptides of Bet v 1 showed the presence of four T-cell epitopes. Polyclonal T-cell lines reacted with 13 different peptides, and displayed even broader crossreactivity with group 1 pollen allergens from other Fagales members.Conclusion This study demonstrates that apart from T-cell epitopes of rBet v 1, many other crossreactive or Bet v 1 isoallergen-specific epitopes exist. This indicates that isoallergenic variation plays an important role in the induction of Bet v 1-specific and crossreactive T-cell responsiveness to allergens.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2222.1997.tb01236.x
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  • 10
    Electronic Resource
    Electronic Resource
    Competition for peptides and amino acids among periodontal bacteria (1995)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of periodontal research 30 (1995), S. 0 
    Details
    ISSN: 1600-0765
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: We recently studied the utilization of glutathione (l-γ-glutamyl-l-cysteinylglycine), l-cysteinylglycine and l-cysteine by anaerobic bacteria. The rate of hydrogen sulfide formation from these compounds was determined and it was concluded that Peptostreptococcus micros and Fusobacterium nucleatum subsp. nucleatum had an active transport of small peptides. In the present study it is shown that methyl mercaptan formation from l-methionine and l-methionyl-containing peptides can also be used to study peptide utilization. There were differences among the periodontal bacteria P. micros, F. nucleatum subsp. nucleatum, and Porphyromonas gingivalis in their capacity to use l-cysteine and l-methionine and peptides containing these amino acids. The peptides were used more efficiently by P. micros and F. nucleatum subsp. nucleatum than by P. gingivalis. All three species used the peptides more efficiently than the free amino acids. The efficiency in utilizing various amino acids and peptides may be among the key determinants of the periodontal microbial ecology.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0765.1995.tb01292.x
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