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  • 1
    ISSN: 1540-8183
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The technical challenges in the development of a quality-controlled registry of percutaneous coronary interventions (PCIs) are currently unknown. This article describes the authors' experience in the development of a regional, quality-controlled PCI registry. In 1996, 16 centers in Michigan were invited to participate in a multicenter PCI registry. Nine centers agreed to a pilot data collection and, as of July 2001, eight centers are still actively collecting data. An Oracle database was developed by the coordinating center. A common data collection form and a standard set of definitions were agreed on during several meetings. Data validity was insured through review of each form by a trained nurse, by automatic database diagnostic routines, and by site visits that included a review of the catheterization laboratory logs and a review of randomly selected charts. The average number of forms requiring query resolution was 33% in 1997 (range 7–76%), and it decreased to 5% in 1999 (range 1.4–10%). The most commonly queried variables were outcomes prior to discharge, lesion category, lesion complexity, date of birth, device used, gender, postprocedural percent stenosis, presence of left main disease, and MI date. Invalid dates, identification of the doctor, the presence of duplicate forms, and of duplicate outcomes were additional common queries generated by the internal diagnostic routines. In conclusion, the number of queries and diagnostic reports generated in the database suggests that the development of a quality-controlled PCI registry requires the institution of a careful diagnostic and data quality assessment system.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Bradford : Emerald
    Library consortium management journal 2 (2000), S. 145-159 
    ISSN: 1466-2760
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Information Science and Librarianship
    Notes: Examines the information value chain and some of its concepts, first for printed information and second for electronic information. Discusses the procurement process and, in the light of the analysis made earlier in the paper, evaluates the various emerging models for procuring electronic information.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of oral rehabilitation 9 (1982), S. 0 
    ISSN: 1365-2842
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Ten edentulous adults were investigated to learn more about the preferred vertical dimension of occlusion (PVDO) and the comfortable zone. A screw jack device was employed, using the forced-choice and external approach methods. The dimensional discrimination ability of each subject was assessed at the mean PVDO, and at points 3 mm above and below it.For each subject, both the forced-choice and external approach methods gave a mean PVDO value which was reasonably constant. The comfortable zone widths were less consistent. In all but two of the subjects the mean PVDO values appeared consistent with a clinically acceptable occlusal vertical dimension.No relationship was found between the dimensional discrimination ability of the subjects and their definition of PVDO and comfortable zone.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of oral rehabilitation 8 (1981), S. 0 
    ISSN: 1365-2842
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: It has been suggested that hypersensitivity and awareness of dentures are causes of retching associated with dentures and dental treatment. Oral form recognition (OFR) and oral motor (OM) ability were examined in fifty-three pairs of retchers and controls. The retchers had all had problems with retching when wearing dentures or during dental procedures. The controls were the same sex as the retchers and were matched with them as closely as possible for age, remaining teeth and edentulous spaces.No difference in OFR and OM ability was found between the paired subjects which might indicate that increased oral awareness contributed to the retchers' symptoms.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of oral rehabilitation 11 (1984), S. 0 
    ISSN: 1365-2842
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Thirteen edentulous adults were investigated to see whether their preferred vertical dimension of occlusion (PVDO) was affected by vertical and horizontal body posture. The PVDO was found by the forced choice method using a graduated series of sticks in random sequence. The subjects were tested in both postures on two separate occasions. No significant difference was found between the PVDO's when the subjects were sitting upright and when they were supine. Nor was there any significant difference in the PVDO of the first and second sessions for either position.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of oral rehabilitation 11 (1984), S. 0 
    ISSN: 1365-2842
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The dependence of the preferred vertical dimension of occlusion (PVDO) of edentulous subjects on the height of the complete dentures the subjects were wearing was investigated. Two experiments were carried out. Experiment I tested whether PVDO is influenced by a change in the vertical dimension of occlusion of the dentures. Experiment II compared PVDO values before and after insertion of dentures that had been constructed with an occlusal vertical dimension equal to PVDO. It is concluded that PVDO is independent of the height of the complete dentures the subject is wearing. Clinical implications are discussed.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 275 (1978), S. 468-468 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] MUCH attention is currently being given to the concept of 'public participation' in policy decisions on technical and scientific matters. In referring to decisions on recombinant DNA research during a commencement address at the University of Michigan, Joseph Califano, Secretary of Health, ...
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Cambridge : Cambridge University Press
    Journal of linguistics 24 (1988), S. 553-559 
    ISSN: 0022-2267
    Source: Cambridge Journals Digital Archives
    Topics: Linguistics and Literary Studies
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    New York : Cambridge University Press
    Language variation and change 2 (1990), S. 255-275 
    ISSN: 0954-3945
    Source: Cambridge Journals Digital Archives
    Topics: Linguistics and Literary Studies
    Notes: Auditory phonetic transcription is a stock-in-trade of sociolinguists; it is transcriptions, not actual speech, that form the raw data of much of sociolinguistics. Given its importance, it is surprising that phonetic transcription has rarely been examined by sociolinguists from the point of view of its validity and its reliability — despite the existence of a certain amount of discussion in the phonetic literature. Rather, it has been treated as a pretheoretical notion. In this article, we report an experiment that compares the auditory transcriptions of trained phoneticians with physiological data on the same utterances, using the technique of electropalatography. The experiment shows that (a) there are intervening factors of a psycho-acoustic nature that impinge on a phonetician's transcription, thus affecting validity; and (b) there is considerable inconsistency, both between phoneticians and between a single phonetician's different attempts at transcribing the same token. Both of these latter factors show that a high degree of reliability cannot be assumed.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1432-0851
    Keywords: Tumor necrosis factor ; Pleiotropic drug resistance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary This study has addressed the question of whether there may be some common mechanism underlying the induction or expression of acquired cytokine and drug resistance in a tumor cell line. This study employed the tumor-necrosis-factor(TNF)-sensitive U937 tumor cell line as a model system to determine if selection of a tumor cell variant for cytokine resistance would also result in drug resistance and vice versa. Variants were selected by culturing in the presence of purified recombinant TNF or a mixed-lymphokine-containing supernatant derived from concanavalin-A-stimulated peripheral blood lymphocytes. The resulting variants were resistant not only to TNF, but also to certain chemotherapeutic drugs. The variants were most resistant to colchicine and theVinca alkaloids, requiring drug concentrations 50- to 5000-fold higher to mediate levels of cytotoxicity comparable to that seen with the parental U937. The variants were moderately resistant to cycloheximide, actinomycin D, and mitomycin C. In contrast, these lines were relatively sensitive to doxorubicin or daunomycin. This phenomenon was not unique to U937 cells since we obtained a similar pattern of drug resistance by selecting TNF-resistant variants of the WEHI-164 tumor cell line. The cytokine-selected U937 variants were still lysed by NK cells, although they were somewhat less sensitive than the parental U937. Both variants were relatively resistant to lysis by activated macrophages, probably because of their TNF resistance. In an alternative selection procedure, U937 variants were derived by culturing in the presence of increasing concentrations of colchicine. The resulting variants were relatively resistant to TNF, providing further support for the existence of some common mechanism operating in induction or expression of acquired cytokine and drug resistance. The resistance mechanism apparently does not involve the P glycoprotein since the cytokine-selected U937 variants do not overexpress the mdr gene. This study has demonstrated that selection of TNF-resistant variants results in coexpression of a unique form of drug resistance that is characterized by resistance to microtubule-active drugs but not to the anthracycline antibiotics and is not associated with overexpression of the mdr gene.
    Type of Medium: Electronic Resource
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