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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 315 (1984), S. 121-122 
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Nuclear excitation was observed in197Au when the Au atom was ionized by pulsed electrons of 100 keV. It is attributable to NEET of Ml interaction. The NEET probability was found to be (2.2±1.8)×10−4.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 311 (1983), S. 303-309 
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A radiochemical study has been made to search for dineutron2 n produced in the simultaneous two-neutron emission of the excited6He nuclei,6He*, induced in the reaction of9Be+n→-6He*+α with fast neutrons in a reactor. It was attempted to detect the radio-activity of28Mg as a product of the reaction2 n+27Al→28Mg+p. The28Mg radioactivity observed in heterogeneous samples composed of the2 n-producing target Be and the2 n-detecting target Al separately was not found to be more than that of a side reaction,27Al{(n, p)(n th, γ)+(n th, γ)(n, p)}28Mg, whereas it clearly exceeded that of the side reaction in alloy samples made of Be and Al metals. The former experiment gives an upper limit of the production rate of the dineutron in the bound state 1×10−7 per event of the simultaneous two-neutron emission. A tentative explanation for the excessive28Mg radioactivity observed in the latter experiment is the following two-step process,9Be+n→6He+α and27Al+6He→+28Mg+α+p, rather than the process induced by the dineutron in a virtual state.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Journal of neural transmission 21 (1960), S. 300-313 
    ISSN: 1435-1463
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Klinische Beobachtungen an Patienten, die der präsacralen Neurektomie unterzogen wurden, um sie von der Cystalgie zu befreien, zeigten bemerkenswerte Erfolge und nur geringe Komplikationen dieses Eingriffs. Die Resultate sprechen für eine derartige Operation nach sorgfältiger Indikationsstellung. Darüber hinaus wurden die Mechanismen durch Experimente an Hunden untersucht.
    Abstract: Résumé L'observation clinique de malades qui ont été soumis à la neurectomie présacrale pour les soulager des douleurs de la vessie, a démontré l'efficacité et la rarité des complications chirurgicales. Le résultat indique que l'opération doit être faite après un triage sévère des indications. Les mécanismes d'action ont été, en outre, étudiés au moyen d'expériences sur des chiens.
    Notes: Summary A clinical observation on patients subjected to presacral neurectomy to relieve them from cystalgia showed remarkable effectiveness and slight complications. The result indicates that the operation should be performed, strictly choosing the indications. Moreover, its mechanisms were investigated by the experiment employing dogs.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1435-1463
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Es wurden bei 187 Hunden Durchtrennungen bestimmter Anteile der Blaseninnervation vorgenommen und jeweils die hierdurch bedingten Veränderungen der Blase cystometrisch und gleichzeitig biochemisch ausgewertet. Dabei fiel auf, daß nach Durchtrennung der vorderen und hinteren Wurzeln der entsprechenden Sacralnerven mit gleichzeitiger Entfernung der Sacralganglien Blasenvolumen und Blaseninnendruck sich gleich verhielten wie nach Durchtrennung der Nn. pelvici; d. h. das Blasenvolumen sank und der Innendruck stieg an. Wurden bei Durchtrennung der hinteren und vorderen Wurzeln der Sacralnerven die Sacralganglien jedoch belassen, so stieg das Blasenvolumen an und der Innendruck fiel ab. Biochemisch wurde festgestellt, daß nach Durchtrennung der jeweiligen Blaseninnervation regelmäßig jeweils der O2-Verbrauch die CO2-Abgabe, die Bernsteinsäuredehydrogenase und die Cholinesterase in der Blase sich verminderten, während die Milchsäuredehydrogenase und die P32-Aufnahme in die energiereichen Phosphatverbindungen anstiegen. Diese Relation war nach Entfernung der Sacralganglien nicht mehr nachweisbar.
    Abstract: Résumé Chez 187 chiens nous avons sectionné des rameaux définis des nerfs innervants la vessie et déterminé les modifications consécutives sur la vessie autant au point de vue cystométrique que biochimique. Nous avons observé ainsi que la section des racines antérieures et postérieures des nerfs sacrés correspondants et l'enlèvement concomitant des ganglions sacraux amènent les mêmes modifications que celles que l'on observe après section des nerfs pelviens, à savoir une diminution du volume de la vessie et une augmentation de la pression intravésicale. En respectant les ganglions sacraux et en limitant à sectionner les sources antérieures et postérieure il y a au contraire augmentation du volume vésical et chute de la pression intravésicale. La section des nerfs innervant la vessie amène une chute de la consommation d'oxygène et de la production d'acide carbonique de la paroi vésicale ainsi qu'une diminution de l'activité de la succino-déhydrogénase et de la cholinestérase, alors que l'activité de la lacto-déhydrogènase et la vitesse d'incorporation du P32 dans les composés phosphoriques riches en énergie augmentent. Ces faits ne s'observent plus après suppression concomitante des ganglions sacraux.
    Notes: Summary In 187 dogs we cut through certain branches of the nerves innervating the urinary bladder and we determined the changes caused thereby from a cytometrical and a biochemical point of view. We thus observed that the section of the corresponding ventral and dorsal sacral nerves accompanied by the removal of the sacral ganglions brought about the same changes as those observed after section of the pelvic nerves, i. e., a diminution of the volume of the urinary bladder and an augmentation of the intravesical pressure. Leaving the sacral ganglions and restricting ourselves to the section of the ventral and dorsal roots, we ascertained, however, an augmentation of the vesical volume a diminution of the intravesical pressure. The section of the nerves innervating the urinary bladder brought about a diminution of the consumption of oxygen and of the production of carbonic acid of the vesical wall as well as a diminution of the activity of the succinodehydrase and of the cholinesterase while the activity of the lacto-dehydrase and the speed of incorporation of the P32 into the phosphoric compounds rich in energy augmented. These facts were no more observed after the simultaneous suppression of the sacral ganglions.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 36 (1980), S. 1235-1236 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Human anterior pituitary cells derived from a somatotropin-secreting adenoma were capable of generating action potentials with Ca2+ and tetrodotoxin-sensitive Na+ components. A major fraction of the action current was carried by Na ions.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1432-0711
    Keywords: Pregnancy-specific ß-glycoprotein (SP1) ; ß-hCG ; Urinary hCG ; Trophoblastic tumours
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Using immunological techniques urinary hCG, pregnancy-specific ß-glycoprotein (SP1) and ß-subunit of hCG (ß-hCG) levels were measured in the serum and cerebrospinal fluid of patients with trophoblastic tumours. After removal of hydatidiform moles, urinary hCG, ß-hCG and SP1 levels were similar, but SP1 levels tended to exceed serum ß-hCG levels. SP1 usually disappeared first. In patients with metastatic choriocarcinoma, SP1 levels appeared to be lower than ß-hCG values in serum and cerebrospinal fluid, but urinary hCG, ß-hCG and SP1 concentrations all decreased during chemotherapy. Measurements of SP1 levels may well be useful in the monitoring of patients being treated for trophoblastic tumours.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Histochemistry and cell biology 65 (1980), S. 83-92 
    ISSN: 1432-119X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The histochemical study of Mg++-activated adenosine triphosphatase (Mg++-ATPase) activity was carried out on the peripheral nerves of mouse digital skin by light and electron microscopy. Under the light microscope, the ATPase activity was clearly demonstrated on the nerve fibers as a fine network in the subepidermal regions. Under the electron microscope, the reaction product of enzyme activity was located in the interspace between axolemma and the surrounding Schwann cells of the unmyelinated nerve fibers. No reaction product was observed in the space between the axolemma and the Schwann cells associated with myelinated nerve fibers. Demonstrable activity was absent at the nodes of Ranvier as well as on the para- and internodal regions of these myelinated axons. The part of the axolemma lacking a Schwann cell sheath failed to show a reaction product. The perineural epithelial cells surrounding the nerve fibers displayed reaction product in the caveolae. These results suggest a functional difference in the axon-Schwann interface of myelinated as compared to unmyelinated nerve fibers. The function of the perineural epithelial cell would be expected to be a regulatory one in transferring materials across the epithelium to keep the proper humoral environment around nerve fibers.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Histochemistry and cell biology 73 (1981), S. 201-209 
    ISSN: 1432-119X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Localization of carbonic anhydrase activity was studied electron microscopically on cells of the rat choroid plexus epithelium. For the ultracytochemical detection of these activities, Yokota's technique (1969), which is the modification of Hansson's method (1967) was employed. Numerous electron dense reaction products were observed in the microvilli of the choroidal epithelial cell. The reaction deposits were also remarkably present in the infoldings of the basal plasmalemma but to a lesser extent than in the microvilli. The localization sites were mainly on the plasma membrane, but some reaction products were also observed in the cytoplasm near the plasma membrane. Hardly any reaction product was found in the intracellular organelles except for the mitochondria in which reaction products were occasionally observed on the cristae. These activities were completely inhibited by acetazolamide. As the carbonic anhydrase activity was histochemically seen in the microvilli and the basal infoldings, it is likely that carbonic anhydrase is related to an active transport process in the secretion of cerebrospinal fluid as is Na+, K+-ATPase (Masuzawa et al. 1980).
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Histochemistry and cell biology 72 (1981), S. 489-498 
    ISSN: 1432-119X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Electron microscopic cytochemical studies on the rat choroid plexus epithelium have revealed enzymatic sites for the activities of acid phosphatase, glucose-6-phosphatase and thiamine pyrophosphatase on different organelles. Only the activity of acid phosphatase has been previously described. Acid phosphatase, glucose-6-phosphatase and thiamine pyrophosphatase were respectively situated mainly in the lysosomes, in the endoplasmic reticulum and nuclear envelope, and in the Golgi complex. These three enzymes can thus be considered as marker enzymes for their respective organelles in the choroid plexus epithelial cells as well as in other tissue cells. The possible function of these enzymes in the choroid plexus epithelial cells is also briefly discussed.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Journal of cancer research and clinical oncology 97 (1980), S. 51-62 
    ISSN: 1432-1335
    Keywords: Gastric carcinoma ; Dog ; MNNG ; Endoscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Serial studies by endoscopy and biopsy were made in a Beagle dog during and after oral administration of N-methyl-N′-nitro-N-nitrosoguanidine (MNNG). Between the 23rd and the 45th week of observation erosions and ulcers appeared at the angulus of the stomach and turned into ulcer scar. A depression with atypical glands was seen in the ulcer scar of the posterior wall of the angulus at the 94th week. It developed elevated margins at the 102nd week, when a well differentiated adenocarcinoma was found histopathologically. Ulceration and reepithelialization were observed in the early carcinoma. The carcinoma progressed into a larger one of Borrmann's type 2 at the 115th week and further into its type 3 at the 181st week. A second carcinoma with signet ring cell carcinoma developed in the anterior wall of the angulus. The two carcinomas fused and formed a single lesion. At autopsy in the 216th week the carcinoma invaded the serosa, and metastasis to regional lymph nodes was observed.
    Type of Medium: Electronic Resource
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