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  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK and Boston, USA : Blackwell Publishers Ltd.
    Economics & politics 13 (2001), S. 0 
    ISSN: 1468-0343
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Political Science
    Notes: Using a simple game-theoretical model, this paper analyzes the role of policy advisers in the policy-making process. We show that policy makers are inclined to appoint advisers whose preferences coincide with their own preferences. Furthermore, we show that policy makers are biased towards erecting permanent advisory units. This result stems from the policy makers' desire to affect the actions of their successors. A permanent advisory unit induces future policy makers to act in accordance with the preferences of current policy makers. The policy-makers' bias towards erecting permanent advisory units may drive a wedge between actual policy outcomes and socially desired policy outcomes.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    International journal of dermatology 25 (1986), S. 0 
    ISSN: 1365-4632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: : A 2.5% formulation of benzoyl peroxide was compared with its vehicle, and with a 5% and a 10% proprietary benzoyl peroxide gel preparation in three double-blind studies involving 153 patients with mild to moderately severe acne vulgaris. The 2.5% benzoyl peroxide formulation was more effective than its vehicle and equivalent to the 5% and 10% concentrations in reducing the number of inflammatory lesions (papules and pustules). Desquamation, erythema, and symptoms.of burning with the 2.5% gel were less frequent than with the 10% preparation but equivalent to the 5% gel. The 2.5% formulation also significantly reduced Propionibacterium acnes and the percentage of free fatty acids in the surface lipids after 2 weeks of topical application.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 573 (1989), S. 0 
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1365-2559
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Four monoclonal antibodies against antigens expressed differentially by the normal thymus epithelium, which define the cortical, medullary and subcapsular compartments, were used for immunohistological characterization of the epithelial cells in 14 thymomas. Furthermore, thymoma-associated lymphocytes were studied with monoclonal antibodies directed against T-lymphocyte differentiation antigens (CD1a, CD3, T-cell antigen receptor). Only four of the 14 thymomas could be classified into either medullary or cortical type thymoma based on the immunophenotype of epithelial cells. Ten cases escaped immunophenotypical classification due to co-expression of medullary and cortical antigens by the tumour cells. This aberration from the normal phenotype might indicate the failure of differentiation of such tumours. The immunophenotype of the associated lymphocytes, on the other hand, made it possible to classify the tumours as cortical (5 cases), mixed (2) and medullary (3) thymomas. Four thymomas escaped this classification scheme due to the absence of lymphocytes (2) or to a hybrid immunophenotype (2). Nevertheless, thymocytes of cortical type clearly predominated and were seen in all thymomas with associated lymphocytes. This feature may constitute a good diagnostic tool in differential diagnosis since, in 28 mediastinal or extramediastinal metastasis of tumours not derived from thymic epithelium and associated with various numbers of lymphocytes, none of them were found to contain CD1a positive lymphocytes.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1546-1718
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Medicine
    Notes: [Auszug] Tumor-necrosis factor (TNF), a pleiotropic cytokine, triggers physiological and pathological responses in several organs. Here we show that deletion of the mouse gene Timp3 resulted in an increase in TNF-α converting enzyme activity, constitutive release of TNF and activation of TNF signaling ...
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1434-6036
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We report on a study of the far-infrared reflection for a sintered YBa2Cu3O7 sample that contained a large portion of preferentially oriented crystallites with thea−b plane parallel to the surface and that showed extraordinary high far-infrared reflectivity. From experimental reflection data we determined, by Kramers-Kronig analysis, the dynamical conductivity and extracted the contributions due to free charge carriers and phonons, respectively. We find evidence for an anomalous behavior of the dynamical conductivity at temperatures aboveT c ; the dynamical conductivity increases strongly for temperatures approachingT c and is strongly frequency dependent. By use of the Mattis-Bardeen theory we obtain an estimate for the superconducting energy gap of 2Δ/kT c ≃4.6 (forT≪T c ). We find that the lowest frequency infrared-active phonon mode is less damped in the superconducting state than in the normal state.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 66 (1988), S. 533-539 
    ISSN: 1432-1440
    Keywords: Intestinal lipodystrophy ; Whipple's disease ; Atypical mycobacteria
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Twenty-two patients with Whipple's disease are reviewed (21 male, 1 female; mean age 49.3 years). All but one were diagnosed by small intestinal biopsy. The most frequent clinical symptoms at diagnosis were weight loss (14/21 patients), diarrhea (13/21), arthralgias (13/21), cramping abdominal pain (11/21), and skin pigmentation (8/21), which anteceded the diagnosis by from 6 months to 10 years (median 3.5 years). All but three patients were treated successfully with tetracycline given for at least 2 years. Follow-up was done for a median of 7.7 years (range 1–15 years). Two of 17 patients who were followed for 2 years relapsed, as did 2/11 followed for at least 5 years. One patient relapsed twice. Each relapse could be treated with success. In no case did relapse occur in the central nervous system. Thus, tetracycline appears to be effective in the treatment of Whipple's disease if given for at least 2 years. In two further patients with confirmed central nervous system involvement at diagnosis, who were treated with ampicillin plus chloramphenicol, characteristic SPC cells disappeared from the cerebrospinal fluid. In addition, the recently recognized problems in the differential diagnosis of Whipple's disease and atypical mycobacterial infection in AIDS patients are discussed.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 65 (1987), S. 49-52 
    ISSN: 1432-1440
    Keywords: Thymic hyperplasia ; Numeric thymic hyperplasia ; Thymic rebound
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The condition of true thymic hyperplasia is defined as an increase of both size and weight of the gland while it maintains normal microscopic architecture. It occurs in three different clinicopathologic forms: (1) True thymic hyperplasia without any other disease is extremely rare and only seven well documented examples could be found in a review of the literature. (2) Enlargement of the thymus gland is reported as a form of rebound phenomenon in a number of conditions like recovery from severe stress situations, after administration of steroids, and after treatment of malignant tumors. (3) Finally, thymic hyperplasia has been described in association with endocrine abnormalities, sarcoidosis, and Beckwith-Wiedeman syndrome.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 65 (1987), S. 53-60 
    ISSN: 1432-1440
    Keywords: Thymic hyperplasia ; Lymphofollicular hyperplasia of the thymus ; Immunohistology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The so-called lymphofollicular hyperplasia, which is caused by the occurrence of hyperplastic lymph follicles within the organ, is constantly associated with autoimmune diseases (e.g., myasthenia gravis) and in rare instances with malignant tumors. The architecture of lymphofollicular hyperplasia was studied immunohistochemically using antibodies against epithelial, vascular, lymphocytic, and histiocytic antigens. There is evidence, that the configuration, microtopography, cellular composition, and immunohistological findings of the lymph follicles with germinal centers in the myasthenic thymus are essentially the same as in those occurring in lymph nodes and in other lymphatic tissue. Furthermore it could be shown that the follicles originate in the interlobular septal space and displace the thymic parenchyma by extension.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Naturwissenschaften 75 (1988), S. 509-510 
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
    Type of Medium: Electronic Resource
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