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  • 1
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Analytical chemistry 27 (1955), S. 971-974 
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 53 (1988), S. 651-653 
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Laser direct writing reactions for molybdenum etching and Cr/Cr2O3 cermet conductivity transformation have been developed for concurrent phase and amplitude trimming of surface acoustic wave devices on LiNbO3. The molybdenum etching reaction utilizes photolytic decomposition of Cl2 with 488 nm light as a means to achieve low process temperature and avoid substrate damage. The cermet reaction utilizes a solid-state transformation in an O2 environment to render the film highly nonattenuating to surface acoustic waves with no underlying substrate damage. These techniques have been applied to trimming of reflective array compressors and have provided order-of-magnitude improvement in phase and amplitude accuracy over devices compensated by lithographic processing.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 52 (1988), S. 404-406 
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Phase transformations of a thin film of Ba2YCu3Ox were induced with a focused laser beam in chemical ambients. The transformations, involving superconductive and nonsuperconductive phases, are achieved rapidly and with a high degree of spatial control. They are fully reversible, and the appropriate processing parameters have been studied. These effects are interpreted within present models, which relate the superconducting properties of Ba2YCu3Ox to its oxygen content and crystalline structure.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Plant pathology 38 (1989), S. 0 
    ISSN: 1365-3059
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Twenty-two cultivars of Phaseolus vulgaris, mentioned in the literature as differential cultivars or sources of resistance, were screened with isolates representing 10 races of Colletotrichum lindemuthianum, to test their suitability as differentials. Single-plant selections from eight cultivars were chosen, with genetic uniformity for resistance and with clear positive or negative reactions following inoculation with all 10 individual races. These differentials are proposed as a standard set for international use, to make the identification of C. lindemuthianum races internationally more comparable. The criteria for a set of differentials, and the influence of cultivar, fungus race and environment on the host-pathogen reaction are discussed.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 183 (1959), S. 257-258 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The various penicillins (formula I) may all be regarded as acyl derivatives of a common parent amine, 6-amino-penicillanic acid (formula II: for nomenclature see Sheehan et al.2). We wish to report the isolation of pure 6-amino-penicillanic acid from penicillin fermentations carried out in the ...
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Cambridge : Cambridge University Press
    The @classical review 36 (1986), S. 139-140 
    ISSN: 0009-840X
    Source: Cambridge Journals Digital Archives
    Topics: Classical Studies
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Catalysis letters 1 (1988), S. 81-84 
    ISSN: 1572-879X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Titanium-silicalite can be prepared by subsequent dealumination of ZSM-5 with hydrochloric acid and reaction with titaniumtetrachloride vapour at elevated temperatures. The titanium atoms are probably inserted into lattice vacancies which were formed upon acid leaching.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Catalysis letters 2 (1989), S. 43-47 
    ISSN: 1572-879X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The catalytic hydroxylation of phenol to hydroquinone and catechol can be used for checking the quality of titanium silicate catalysts since the selectivity of these catalysts is strongly affected by the presence of small amounts of non-framework titania. Titanium silicates prepared by modification of [Al]ZSM-5 exhibits the same catalytic properties as hydrothermally synthesized TS-1 of high purity.
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 1437-9813
    Keywords: Congenital diaphragmatic hernia ; Bochdalek hernia
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Congenital diaphragmatic hernia (CDH) of the newborn constitutes an emergency. The overall mortality exceeds 50%. Touloukian and Markowitz described a preoperative X-ray scoring system for predicting outcome following repair of CDH. We reviewed the preoperative X-ray of 33 newborns with CDH according to this system. All infants had to be operated within 24 h of age because of serious respiratory distress. Unlike Touloukian and Markowitz, we were not able to identify the survivors by this scoring system. A number of arguments are presented which may contribute to an explanation for this discrepancy. We conclude from our series and that of Touloukian and Markowitz that a preoperative pneumothorax and a diaphragmatic defect which cannot be closed primarily seem to constitute the only reliable unfavorable signs in emergency cases.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1432-2323
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé La valeur de la mammographie dans le dépistage du cancer mammaire primitif controlatéral a été étudié chez 55 malades qui ont présenté un cancer bilatéral du sein. Quinze des 23 malades (65%) dans le groupe synchrone et seize des 32 malades (50%) dans le groupe métachrone présentaient un cancer cliniquement occulte dans le sein opposé. Exclusion faite de 2 cas de tumeurs malignes découverts par une mammectomie prophylactique la mammographie à elle seule permit de dépister dans le sein opposé 29 (52.7%) cas de cancers impalpables. La série, au total 110 cas de tumeurs malignes, comprenait 41 cancers impalpables dont 12 étaient non invasifs (7 cancers in situ canaliculaires et 5 cancers in situ lobulaires) et 29 étaient invasifs (25 cancers canaliculaires de type variable et 4 cancers lobulaires). En ce qui concerne les ganglions axillaires ils étaient envahis dans 20 (54.1%) des 37 des cancers palpables et 3 (11.5%) des 26 cancers non palpables. Le taux de foyers multiples était particulièrement élevé dans les tumeurs synchrones (70.6%), dans les cancers lobulaires invasifs (73.3%) et dans les cancers non invasifs (75%). Le taux favorable de survie à 5 ans et à 10 ans des malades atteints de cancers du sein, aussi bien dans le groupe synchrone que dans le groupe métachrone justifie de les traiter avec aggressivité et optimisme.
    Abstract: Resumen La significación de la mamografía en la detección del cáncer mamario primario contralateral fue valorada en 55 pacientes con enfermedad mamaria bilateral. Quince (65%) de 23 pacientes en el grupo con enfermedad síncrona y 16 (50%) de 32 pacientes en el grupo con enfermedad metácrona poseían carcinoma clínicamente oculto en el otro seno. Excluyendo las 2 neoplasias malignas descubiertas en mastectomfa profiláctica, la mamografía de por sí fue responsable de la detección de 29 (52.7%) carcinomas contralaterales no palpables. La totalidad de la serie de 110 neoplasias malignas comprendió 41 carcinomas no palpables, de los cuales 12 fueron no invasivos (7 carcinomas ductales in situ y 5 carcinomas lobulillares in situ) y los 29 restantes fueron carcinomas invasivos, unos ductales de diversos tipos (25) y otros lobulillares (4). En relación con los ganglios axilares valorables, 20 (54.1%) de 37 cánceres palpables y sólo 3 (11.5%) de 26 carcinomas no palpables tenían ganglios linfáticos palpables. La tasa de multicentricidad apareció particularmente alta en los tumores síncronos (70.6%) y en los carcinomas lobulillares invasivos (73.3%) y no invasivos (75%). La supervivencia favorable a 5 y 10 años de los pacientes, tanto en el cáncer primario bilateral síncrono como en el metácrono, justifica que sean tratadas con agresivo optimismo.
    Notes: Abstract The significance of mammography in the detection of contralateral primary breast cancer was evaluated in 55 patients with bilateral breast disease. Fifteen (65%) of 23 patients in the synchronous group and 16 (50%) of 32 patients in the metachronous group had clinically occult carcinoma in the opposite breast. Excluding the 2 malignancies discovered by prophylactic mastectomy, mammography alone was responsible for the detection of 29 (52.7%) nonpalpable, contralateral breast carcinomas. The whole series of 110 malignant breasts comprised 41 nonpalpable carcinomas, of which 12 were noninvasive [ductal carcinoma in situ (7) and lobular carcinoma in situ (5)] and the remaining 29 were invasive carcinomas, either ductal of various types (25) or lobular (4). With regard to the évaluable axillary nodes, 20 (54.1%) of 37 palpable breast cancers and only 3 (11.5%) of 26 nonpalpable breast carcinomas had positive lymph nodes. The multicentricity rate was particularly high in synchronous tumors (70.6%), and in invasive lobular (73.3%) and noninvasive (75%) carcinomas. The favorable 5- and 10-year survival of patients, both in synchronous and metachronous bilateral primary breast cancer, justify that they be treated with aggressive optimism.
    Type of Medium: Electronic Resource
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