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  • 11
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 50 (1991), S. 69-73 
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We study the Casimir effect on baryon-free quark-gluon plasma confined in a slab region. The energy and entropy densities of confined QGP at the transition temperature are 2∼3 times as large as those of unconfined QGP when the width of the slab is about 1 fm.
    Type of Medium: Electronic Resource
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  • 12
    Electronic Resource
    Electronic Resource
    Springer
    Fire technology 26 (1990), S. 156-168 
    ISSN: 1572-8099
    Keywords: Heat flux ; radiant strip heater ; liquid surface motion
    Source: Springer Online Journal Archives 1860-2000
    Topics: Architecture, Civil Engineering, Surveying
    Notes: Abstract In order to create and to study the effects of liquid surface motion, a radiant strip heater which consisted of a heated rod at the focal point of a parabolic mirror was designed. Several configurations were analyzed to determine the appropriate design for a heater and it was experimentally proven that a heater with eight heated rods placed in an encasement can provide a nearly uniform heat flux on a fuel surface with magnitude varying with vertical distance. Using a heat flux gauge at various horizontal locations at a specific vertical location, the ratio of measured heat flux between the center and the outer edge of the heater was found not to exceed 1.10.
    Type of Medium: Electronic Resource
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  • 13
    Electronic Resource
    Electronic Resource
    Springer
    International journal of legal medicine 104 (1991), S. 167-171 
    ISSN: 1437-1596
    Keywords: Child neglect ; Malnutrition ; Thymic involution ; Secondary immunodeficiency ; Pseudomonas aeruginosa infection ; Kindesvernachlässigung ; Mangelernährung ; Thymusinvolution ; Sekundäre Immundefizienz ; Pseudomonas aeruginosa-Infektion
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Law
    Description / Table of Contents: Zusammenfassung Beschreibung eines 9-Monate alten weiblichen Säuglings, welcher sich wegen Mangelernährung verzögert entwickelte. Die Entwicklungsstörung führte zu einer Immundefizienz, welche durch eine ausgeprägte Thymus-Involution charakterisiert war. Das Kind starb an einer systemischen Infektion durch Pseudomonas aeruginosa mit Manifestation einer Pneumonia, Lungenabszessen, bakterieller Endokarditis und Ecthyma gangraenosum. Bei der Obduktion war das Kind 64 cm lang — entsprechend einem Alter von 4–5 Monaten — und wog 5,1 kg — entsprechend einem Lebensalter von 2–3 Monaten. Die Haut des gesamten Körpers wies multiple gangränöse Ecthyme auf, welche aus tiefen Geschwüren, Verhärtung und Entzündung bestanden. Die Lungen zeigten eine hämorrhagische Pneumonie, zahlreiche Abszesse und eine nekrotisierende Arteriitis in den Abszessen und in den umgebenden Geweben. Der Thymus wog 2,3 g und zeigte eine ausgeprägte Involution. Die Histologie zeigte eine sog. „ernährungsbedingte Thymektomie”, welche durch schwere kortikale Atrophie charakterisiert war und durch Anhäufung, zystische Erweiterung und amorphe Veränderungen der Hassall'schen Körperchen. Im Herzen waren tiefbraune Warzen vorhanden. An den Anheftungsseiten der Sehnenfäden der Papillarmuskeln im vorderen und hinteren Segel der Mitralklappe, wie bei infektiöser Endokarditis. Die bakterielle Untersuchung wies Pseudomonas aeruginosa in den Ecthymen, den Lungenabszessen und im Blut nach. Da eine primäre Immundefizienz als unwahrscheinlich erachtet wurde, wurde eine sekundäre Immundefizienz aufgrund einer Thymusinvolution, bedingt durch Nahrungsmangel, für ursächlich für die Pseudomonas aeruginosa-Infektion gehalten, ein Keim, welcher generell wenig virulent ist. Dieser Umstand legt eine enge Assoziation zwischen der Entstehung dieser Infektion und der Immundefizienz durch Kindesvernachlässigung nahe.
    Notes: Summary The case of a 9-month-old baby girl who failed to develop normally due to nutritional neglect and secondary immunodeficiency characterized by marked thymic involution is reported. The child died of systemicPseudomonas aeruginosa (P. aeruginosa) infection manifested in pnenmonia, lung abscesses, bacterial endocarditis and ecthyma gangrenosum. At autopsy the child was 64 cm in height (normal for a 4- to 5-month-old child) and 5.1 kg in weight (normal for a 2- to 3-month-old child). Multiple gangrenous ecthymas, consisting of deep ulcers, induration and inflammation, were observed in the skin over the entire body. The lungs showed hemorrhagic pneumonia, multiple lung abscesses, and necrotizing arteritis in the abscesses and surrounding areas. The thymus weighed 2.3 g and showed marked involution. Histological examination showed so-called nutritional thymectomy characterized by servere cortical atrophy and clustering, cystic dilation and amorphous changes of the Hassall's corpuscles. In the heart, dark brown verrucae were present at the attachment sites of the tendinous cords of the papillary muscle in the anterior and posterior cusps of the mitral valve, suggesting infections endocarditis. Bacteriological examination demonstratedP. aeruginosa in the ecthymas, lung abscesses and blood. As primary immunodeficiency was considered unlikely, immunodeficiency secondary to thymic involution following malnutrition seemed to have led to a fatal systemic infection withP. aeruginosa, whose virulence is generally weak. This suggests a close association of the development of such infection and immunodeficiency with child neglect.
    Type of Medium: Electronic Resource
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  • 14
    Electronic Resource
    Electronic Resource
    Springer
    Pediatric surgery international 9 (1994), S. 534-535 
    ISSN: 1437-9813
    Keywords: Nerve sheath myxoma ; Vaccination
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A nerve-sheath myxoma beneath the dermis in the arm of a 5-year-old boy is reported. The tumor had developed on the site of chicken-pox vaccination the patient had received 2 years previously, and a foreign-body granuloma involving a nerve-fiber bundle was seen adjavent to the tumor. On the basis of previous reports, it is doubtful whether the varicella-zoster virus is tumorigenic. The present case suggests a possible relationship between the development of this tumor and factors associated with the vaccination.
    Type of Medium: Electronic Resource
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  • 15
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The position of the Thp and tLub2 deletions relative to cloned DNA markers1'8"10 is shown in Fig. 1. Of these marker loci, only Tcp-1 is deleted in the tLub2 chromosome, so the distance between the flanking marker loci D17Rpl7 and D17Leh66D gives the closest approximation of the limits of the ...
    Type of Medium: Electronic Resource
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  • 16
    Electronic Resource
    Electronic Resource
    Springer
    Acta neurochirurgica 114 (1992), S. 147-150 
    ISSN: 0942-0940
    Keywords: Intrasellar haematoma ; transsphenoidal surgery ; hypopituitarism ; pituitary apoplexy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary This report describes a rare case of primary intrasellar haematoma in a 66 year-old man with hypopituitarism. Computerized tomography (CT) and magnetic resonance imaging (MRI) showed an intrasellar cystic lesion with small suprasellar extension. Transsphenoidal surgery revealed that the lesion was a chronic haematoma, without evidence of a tumour or vascular anomaly. Pathological diagnosis confirmed this. This is the first report of a chronic intrasellar haematoma, which is probably primary.
    Type of Medium: Electronic Resource
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  • 17
    Electronic Resource
    Electronic Resource
    Springer
    Histochemistry and cell biology 96 (1991), S. 1-5 
    ISSN: 1432-119X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary We previously reported that a protein which has immunological cross-reactivity with and a molecular weight similar to dystrophin, the Duchenne muscular dystrophy (DMD) gene product, is expressed on the muscle cell membrane (Tanaka et al. 1989b). To examine if this is the translation product of the autosomal transcript with homology to dystrophin mRNA identified by Love et al. (1989), we raised an antibody (PDRP) against a synthetic peptide corresponding to the putative protein (DRP) and examined its expression and cellular localization in human and murine skeletal muscle samples. In immunoblotting, PDRP stained a band with a similar molecular weight to dystrophin in samples from DMD and Becker muscular dystrophy (BMD) patients and control (non-DMD/BMD) human. PDRP was expected not to cross-react with dystrophin because the antigenic peptide was not homologous to dystrophin. In fact, PDRP did not cross-react with dystrophin present in a BMD patient. Immunohistochemically, PDRP stained the muscle cell membrane in samples from DMB and BMD patients and from mdx mice. Only a slight staining was observed in muscles from control human and wild type mice. Our results confirm the presence of DRP in human and murine skeletal muscles, and further demonstrate that it is localized on the cell membrane. The abundance of DRP in dystrophin deficient muscles might be related to some compensatory mechanisms.
    Type of Medium: Electronic Resource
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  • 18
    Electronic Resource
    Electronic Resource
    Springer
    Journal of neurology 237 (1990), S. 393-398 
    ISSN: 1432-1459
    Keywords: Joseph's disease ; Olivopontocerebellar atrophy ; Cerebellar ataxia ; Ophthalmoplegia ; Pupillary reflex
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The oculomotor abnormalities of 12 patients of a large Japanese family with Joseph's disease were investigated and compared with those of 27 patients with olivopontocerebellar atrophy (OPCA). All 12 patients had limitation of upward gaze, impairment of convergence and horizontal gaze nystagmus. However, none had abnormalities of pupillary shape or light reflexes. Impairments of saccadic and pursuit eye movements were frequently present. Further, difficulty of eyelid opening, bulging eyes, impairment of optokinetic and caloric responses and square wave jerks were seen in some of the patients. The autopsy examination of 1 patient revealed marked neuronal loss in the oculomotor nucleus with preservation of the Edinger-Westphal nucleus and neuronal decrease, myelin loss and gliosis of the dorsal midbrain including superior colliculus, pretectum and posterior commissures. Disturbance of upward gaze, sparing of pupillary light reflexes and horizontal gaze nystagmus were frequent and early symptoms. The pattern of oculomotor disturbances is different from that of OPCA and evaluation of the oculomotor system is useful for clinical diagnosis of the disease.
    Type of Medium: Electronic Resource
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  • 19
    ISSN: 1432-2013
    Keywords: Ca2+ channels ; G protein ; Sympathetic ganglion ; Acetylcholine ; Noradrenaline ; Muscarinic receptors ; α-adrenergic receptors
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Effects of acetylcholine (ACh) and noradrenaline (NA) on voltage-gated ion channels of sympathetic neurones acutely dissociated from rat superior cervical ganglion (SCG) were examined using the whole-cell voltage-clamp technique. Depolarizing voltage steps elicited two types of low- and high-voltage-activated (LVA and HVA) Ca2+ currents. Pressure applications of ACh and NA produced concentration-dependent inhibition of the HVA Ca2+ current without affecting the LVA Ca2+ current. The inhibitory action of ACh on the Ca2+ current was blocked by a muscarinic antagonist, atropine. The action of NA was suppressed by an α 2-adrenergic antagonist, yohimbine, but not by an α 1-adrenergic antagonist, prazosin. Delayed rectifying outward K+ currents and inward rectifying K+ current were not affected by either ACh or NA. Tetrodotoxin-sensitive and -insensitive Na+ currents also remained unaffected under actions of ACh and NA. When recorded with electrode containing guanosine-5′-O-(3-thiotriphosphate) (GTP-γ-S), the inhibitory actions of ACh and NA on Ca2+ currents became irreversible. After treatment of SCG neurones with pertussis toxin, the inhibitory action of ACh on the Ca2+ current was almost completely abolished, whereas the action of NA was only partially reduced. The results suggest that ACh and NA differentially inhibit the HVA Ca2+ current via different G proteins coupling muscarinic and α 2-adrenergic receptors to Ca2+ channels in rat SCG neurones.
    Type of Medium: Electronic Resource
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  • 20
    Electronic Resource
    Electronic Resource
    Springer
    Journal of materials science 27 (1992), S. 587-591 
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The internal structure of yttrium-doped tetragonal zirconia powder compact was characterized using the immersion liquid technique, mercury porosimetry, scanning electron microscopy, and a compaction test. The specimens examined were prepared by pressing spray-dried granules at various pressures from 5–600 M Pa. The immersion liquid technique had numerous potential advantages, over the other methods for evaluating defects of 1–10 μm in size. With this technique, intergranular interfaces and pores were found to be present even in the specimen prepared at 600 M Pa. A feature, which is considered to be an agglomerate, was also found. The significance of the large defects on ceramic processing, as well as a comparison of the technique with the other methods, is presented.
    Type of Medium: Electronic Resource
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