Witold Maciejewski

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We show that many observations of W44, a supernova remnant in the galactic plane at a distance of about 2500 pc, are remarkably consistent with the simplest realistic model. The model remnant is evolving in a smooth ambient medium of fairly high density, about 6 cm on average, with a substantial density gradient. At the observed time it has an age of about(More)
Cardiac manifestations are reported in 0.3%–4.0% of European patients withBorrelia burgdorferi (B.b.) infection. Usually symptoms disappear within 6 weeks. We report a case with persistent impairment of atrioventricular (AV) conduction. Diagnosis was confirmed by demonstration of IgM antibodies and increase of IgG antibody titers against B.b. in serum, by(More)
In 4 cases of allergic vasculitis circulating immune complexes (IC) were demonstrated. Spontaneous and histamine induced vascular changes were studied by immunofluorescence microscopy. The early events in IC vasculitis were investigated at the ultrastructural level by immunoelectronmicroscopy using the peroxidase-antiperoxidase multistep technique. Our(More)
A 39 year-old man developed on trunk, buttock and thighs scaling, atrophic, erythematous lesions which in some places became infiltrated and ulcerated. The clinical, histopathological and immunlogical picture corresponded with the diagnosis of discoid lupus erythematosus. In sites of infiltrations and necrosis, however, histological features of panniculitis(More)
BACKGROUND In 1979, Provost described two patients with the clinical features of disseminated cicatricial pemphigoid for the first time. Until now, only four additional cases of disseminated cicatricial pemphigoid have been described. Existence of diagnosis of disseminated cicatricial pemphigoid has been discussed controversially because in four cases(More)
After an acute course of pharyngitis and bronchitis treated with Bactrim (trimethoprim and sulfamethoxazol), a 52 year old woman suddenly developed a widespread, sterile pustular eruption with predilection of the distal parts of the extremities. The histological and electron microscopical examinations showed intraepidermal pustules with underlying distinct(More)
The principle of immunoelectronmicroscopic studies using horseradish perpoxidase is described. This method, especially the peroxidase-antiperoxidase multistep technique, reveals more details about the exact localization of immunophenomena in different dermatological diseases. The results of immunological investigations performed on the ultra-structural(More)
Since the discovery that EM (erythema migrans), ACA (acrodermatitis chronica atrophicans) and BL (borrelial lymphocytoma) have an infectious etiology, these syndromes have been receiving particular attention. This report describes four patients whose dermatological symptoms did not at first indicate borreliosis. In all four cases serological antibody tests(More)
We consider long-slit emission-line spectra of galactic nuclei when the slit is wider than the instrumental PSF, and the target has large velocity gradients. The finite width of the slit generates complex distributions of brightness at a given spatial point in the measured spectrum, which can be misinterpreted as coming from additional physically distinct(More)