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  • 1
    Electronic Resource
    Electronic Resource
    College Park, Md. : American Institute of Physics (AIP)
    Journal of Mathematical Physics 31 (1990), S. 763-770 
    ISSN: 1089-7658
    Source: AIP Digital Archive
    Topics: Mathematics , Physics
    Notes: A model for composite systems consisting of fermions with internal degrees of freedom interacting via intermediate vector bosons (IVB) is constructed. Highly localized, low-mass bound states are found in the Hartree–Fock approximation. The dependence of these states as function of the coupling constant and vector boson mass is investigated. In the limit of infinite vector boson mass the interaction is described by Fermi-type contact forces.
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  • 2
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Tetrahedron Letters 35 (1994), S. 6615-6618 
    ISSN: 0040-4039
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-0428
    Keywords: Diabetes mellitus ; epidemiology of diabetes ; obesity ; renal glycosuria ; prevalence of diabetes ; prevalence of obesity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé Les auteurs exposent la méthodologie et les résultats obtenus dans le dépistage du diabète sucré parmi de larges groupes de population. — L'exploration a été effectuée en deux phases : la glycosurie et la glycémie prise deux heures après la charge en glucose et après l'exploration parle test du GTT chez des sujets ayant des taux de glycémie dépassant les limites définies comme normales pour chaque groupe d'âge. — Chez un groupe de 1314 personnes parmi la population rurale et 7113 parmi la population urbaine, âgées de 25 à 65 ans, l'incidence du diabète sucré a été respectivement de 1.44% etde3.7%.Dansle calcul final on a considéré aussi les diabétiques déjà en traitement dans un centre médical spécial. Des investigations plus approfondies ont été faites sur 74.5% des malades du milieu urbain dépistés et sur 88.7% des malades provenant du milieu rural. -L'incidence de l'obésité parmi les diabétiques dépistés a été de 51% dans la population urbaine et de 69% dans la population rurale. — A part les cas de diabète sucré, les recherches en masse ont montré une proportion de 2.15% de glycosurie pour une glycémie normale lors du GTT, ce qui suggère que cette catégorie de malades devrait être recensée dans un centre médical et soumise à un controle périodique. -En même temps on a démontré que la méthode de dépistage du diabète sucré seulement d'après la glycosurie est insuffisante et erronée.
    Abstract: Zusammenfassung Es werden die Methoden und Resultate bei der Aufdeckung von Diabetikern in großen Bevölkerungsgruppen dargelegt. Die Untersuchungen erfolgten in zwei Teilen. Zunächst wurden der Harn- und Blutzucker zwei Stunden nach einer Glucosebelastung ermittelt. Später wurden bei den Personen mit im Vergleich zu den Normalwerten ihrer Altersgruppe erhöhten Blutzuckerwerten detailliertere Glucosetoleranzteste durchgeführt. -In einer Gruppe von 1314 Personen einer Landbevölkerung und in einer Gruppe von 7113 Personen einer Stadtbevölkerung zwischen 25 und 65 Jahren war die Häufigkeit des Diabetes 1.44% bzw. 3.7%. In der Endrechnung wurden schon bekannte Diabetiker, die in Diabeteszentren behandelt wurden, mit eingerechnet. An 74.5% der Stadtbevölkerung und 88.7% der Landbevölkerung wurden weitere Untersuchungen angeschlossen. Die Häufigkeit der Übergewichtigkeit unter den neu entdeckten Diabetikern lag bei 51% in der Stadtund bei 69% in der Landbevölkerung. Neben den Diabetikern ergaben die Massenuntersuchungen in 2.15% der Fälle eine Glykosurie bei normalen Blutzuckerwerten während des Glucosetoleranztestes. Diese Gruppe von Patienten benötigte eine ständige Überwachung. -Gleichzeitig wurde festgestellt, daß die Aufdeckung von Diabetikern allein mit dem Harnzuckernachweis unzureichend und fehlerhaft ist.
    Notes: Summary This paper presents the methodology and the results of screening forDiabetes mellitus in large population groups. The investigation consisted of two phases : the detection of glycosuria and blood sugar level 2 h after on oral glucose load; and afterwards, the performance of GTT on people with blood sugar levels above the limits defined as normal for each age group. — The screening of 1314 subjects from a rural population and 7113 from an urban population, between 25 and 65 years of age indicated a prevalence ofDiabetes mellitus of 1.44% and 3.7% respectively. This estimate includes diabetics already known to a special medical centre. −74.5% of the urban population and 88.7%, of the rural population were included in the screening. -Obesity was found in 51% and 69% of the newly found urban and rural diabetics, respectively. In 2.15% of the group, glycosuria was found with normal blood sugar levels during GTT, suggesting that this group should be specially recorded and subjected to periodical survey. — Screening forDiabetes mellitus solely by glycosuria testing is both inadequate and erroneous.
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Experimental brain research 7 (1969), S. 275-298 
    ISSN: 1432-1106
    Keywords: Flash-evoked post-primary cortical component ; Steady light ; Night-active and Day-active monkeys
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary 1. In the night-active Galago crassicaudatus the extent of cortical areas striata (17) and prestriata (18), and the stereotaxic coordinates of the optic tract, lateral geniculate body and pulvinar were anatomically determined. Electric shocks applied to the lateral geniculate elicit area prestriata response patterns which differ from and are longer in latency than area striata responses. 2. In the dark-adapted Galago, light-flashes of progressive intensity or duration evoke in visual cortex a primary a wave, with 16–22 msec latency, and a subsequent post-primary b complex consisting of one or two positive waves within the latency range of 30–70 msec. In the day-active Saimiri sciureus, a different response is elicited, composed of 6–9 early low-voltage oscillations followed by late, higher voltage waves exceeding 70 msec in latency. 3. Simultaneously applied steady light produces in Galago an elective postprimary b complex potentiation, which contrasts with the reduction of the oscillations recorded from the optic tract and lateral geniculate body, and the reduction of the cortical primary a wave; in Saimiri, it induces only a slight potentiation of cortical oscillations in the latency range of 45–60 msec, and, as in Galago, a reduction of lateral geniculate oscillations. In both species the steady light effects of cortical potentiation are elicited also by applying steady light to the retina opposite to that stimulated by the testing flash, thus suggesting a central origin of these effects and a binocular cortical convergence. 4. In both species, flash-evoked responses in area striata (17) and area prestriata (18) undergo the same alterations during steady light. 5. Flash-evoked responses were recorded from the intergeniculate (inferior) nucleus of the pulvinar; during steady light they were depressed in Galago and totally suppressed in Saimiri. 6. Within the limits of the investigation modalities used, the present results on Galago did only slightly differ from previous ones on cat, but those in Saimiri proved to differ from both.
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Annals of hematology 39 (1979), S. 351-357 
    ISSN: 1432-0584
    Keywords: Hirnthrombose ; DeformabilitÄt und AggregabilitÄt der Erythrozyten ; Blutgruppen ; Cerebral thrombosis ; Erythrocyte deformability and aggregability ; Blood groups
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary Within a few hours after a cerebral thrombosis in 220 patients, the flow-properties of the red blood cells (RBC) were analyzed by a filtration test that expresses quantitatively the deformability and aggregability of the RBC by the filtration indexes pT. Abnormal deformability of the RBC washed clean of plasma was found in 27.5% of the patients. Aggregability disorders, caused by the plasma trapped between the unwashed RBC, were found in 78.6 % of the patients: computation of correlation coefficients between pT indexes and fibrinogen, which was found abnormally high in 88.2% of cases, demonstrated significantly that in the patients with A and B blood groups these aggregability disorders were due to fibrinogen and that they were caused by other components of plasma in patients with O and AB blood groups. All these disorders can account for blood hyperviscosity.
    Notes: Zusammenfassung Innerhalb weniger Stunden nach Bildung eines Thrombus in einer Hirnarterie wurden bei 220 Patienten die DeformabilitÄt and AggregabilitÄt der Erythrozyten untersucht. Die Filtration von gewaschenen Erythrozyten zeigte bei 27,5% der Patienten VerÄnderungen der DeformabilitÄt. Die Filtration ungewaschener Erythrozyten ergab bei 78,6% der Patienten eine Zunahme der AggregabilitÄt der Erythrozyten. Die Berechnung der Korrelationskoeffizienten zwischen Filtrations-index und Fibrinogenkonzentration, die bei 88,2% der Patienten erhöht war, weist darauf hin, da\ Störungen der AggregabilitÄt nur bei Patienten mit den Blutgruppen A und B abhÄngig von Fibrinogen sind, wÄhrend es sich bei den Blutgruppen 0 und AB um andere Plasmafaktoren handeln mu\.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1432-1440
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Experimental brain research 4 (1967), S. 256-274 
    ISSN: 1432-1106
    Keywords: Flash-evoked post-primary component ; Steady light ; Visual cortex
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary 1. The visual cortex response to a contralateral flash is composed in the dark-adapted unanaesthetized cat of an initial (a) wave, with 14–22 msec latency, and a subsequent (post-primary) b complex, at 40–50 msec after the onset of the photic stimulus, consisting of a single or two main deflections followed by a fast (60–100 per sec) afterdischarge. The complex alterations of the cortical afterdischarge induced by variations in parameters of photic stimulation are not referrable to the optic tract oscillatory activity. The central (cortical) origin of the post-primary component is suggested, among other evidences, by its selective enhancement following a conditioning stimulation of the lateral geniculate body. 2. Steady light applied to the same retina as the testing flash electively potentiates the post-primary component evoked in the contralateral striate and parastriate cortex (increase in amplitude, shortening of latency and faster evolution), developing it to the pattern of a shock-evoked response, with positive spikes preceding the diphasic wave. The potentiation of the post-primary component by continuous illumination is additive with that induced by lateral geniculate or direct visual cortex stimulation. Inequalities between surface- and depth-recorded flash-evoked components become more marked under steady light, which induces a greater potentiation of the reversed post-primary components in the depth than at the surface. Steady light potentiation at the cortical level is associated with reduction of the first deflection and ensuing oscillations evoked at the level of the optic tract and lateral geniculate body. 3. The level of steady light potentiating effect and its mechanisms are discussed.
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Acta mathematica hungarica 18 (1967), S. 283-295 
    ISSN: 1588-2632
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Acta mathematica hungarica 21 (1970), S. 21-26 
    ISSN: 1588-2632
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    European archives of psychiatry and clinical neuroscience 210 (1967), S. 263-273 
    ISSN: 1433-8491
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary 1. A primary epileptic focus was produced by local injection of Penicillin in the dorsal hippocampus; the electric epileptic events projected to neocortex and resulted in the development of a secondary epileptic focus in the ectosilvius medius gyrus. 2. In this secondary neocortical focus the relationship was studied between the epileptic slow waves and neuronal extracellular discharges. 3. From 421 neurons, 82% discharged spikes in definite time-relation with the slow waves: the majority (75%) discharged mostly a single spike synchronous with a constant phase of the slow wave, the development of this synchronization being a progressive event; from the other group of neurons (7%), some discharged synchronous with the slow wave during the postictal period of electrical silence; other neurons, which started to discharge at onset of the seizure, stopped their discharges before the seizure ended. 4. The spontaneous discharge pattern in 18% of neurons were not affected by the epileptic events. 5. Some similarities and differences were discussed concerning the discharging manner of neocortical neurons belonging to a secondary focus, projected from hippocampus, versus the secondary focus projected via the corpus calosum.
    Notes: Zusammenfassung 1. Durch lokale Penicillininjektion in den dorsalen Hippocampus wurde ein primärer epileptischer Herd gesetzt. Dieser projizierte zum Neocortex, wo im Gyrus ectosylvius medius ein sekundärer Krampfherd entstand. 2. In diesem neocortical projizierten Krampfherd wurden die Beziehungen zwischen den epileptiformen langsamen Wellen und den neuronalen Zellentladungen untersucht. 3. Die Entladungen von 82% der Neurone standen in einem zeitlichen Verhältnis zu den langsamen Wellen: die Mehrzahl (75%) entlud meistens einen einzigen spike synchron mit einer bestimmten Phase der langsamen Wellen (die Entwicklung dieser Synchronisation entstand als ein fortschreitender Vorgang). Andere 7% der Neurone entluden synchron mit den langsamen Wellen während des Krampfes, oder auch während der postkritischen elektrischen Stille. Spontane Entladungen anderer Neurone sistierten während der Entwicklung der langsamen Wellen. 4. Die Spontanentladung von 18% der Neurone blieb während des Krampfgeschehens unverändert. 5. Einige Unterschiede und Ähnlichkeiten des Verhaltens der Neuronenentladungen aus dem sekundär vom Hippocampus und dem transkallosal projizierten Herd werden besprochen.
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