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  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Scandinavian journal of immunology 17 (1983), S. 0 
    ISSN: 1365-3083
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Human lymphocytes alloactivated in vitro were cloned by limiting dilution in the presence of filler cells and interleukin 2 (IL 2)-containing supernatants of phytohaemagglutinin-stimulated lymphocytes. Clones with allospecific proliferative reactivity (PLT clones), measured by tritiated thymidine (3H-TdR) incorporation, were selected for extensive IL 2-dependent expansion. The cloned lines had finite lifespans, ranging from an estimated minimum of 28 to 〉 65 doublings. Function as PLT reagents, however, was retained in all cases for only an estimated 30 cell doublings. This apparent cessation of function was not caused by loss of the ability to metabolize thymidine, since lines continuing to grow for 〉 30 doublings still incorporated 3H-TdR in the presence of IL 2. An altered requirement for stimulating antigen (number of stimulating cells), or altered response kinetics, did not contribute to loss of PLT function. Exogenous IL 2 added during restimulation to responders previously ‘rested’ overnight without IL 2 did not restore the response. Thus, under present experimental conditions, functional lifespans of cloned PLT reagents appear fixed at ˜ 30 cell doublings.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Clinical and experimental pharmacology and physiology 9 (1982), S. 0 
    ISSN: 1440-1681
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: 1. The effect on renal function in sheep of inhibiting converting enzyme with captopril was examined before and after 5 days ACTH administration.2. Glomerular filtration rate, effective renal plasma flow, effective renal blood flow, mean arterial pressure and plasma sodium were all significantly incereased by ACTH treatment and plasma potassium was decreased. Captopril (20 mg i.v.) had no effect on renal function or blood pressure before or after ACTH treatment, although urinary potassium excretion decreased following captopril on day 6 of ACTH treatment.3. The increase in glomerular filtration rate and effective renal plasma flow seen with ACTH treatment in sheep does not appear to be mediated by the renin-angiotensin system.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    European journal of wildlife research 26 (1980), S. 126-132 
    ISSN: 1439-0574
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Description / Table of Contents: Summary In a wild boar enclosure in Austria, one individual several years old was observed smell marking and defending food. Apples were smell marked with urine and saliva. Young animals did not eat this food after having tested it by sniffing, although the marking ♂ did. The wild boar defended his feeding ground against men. In the process, he showed in a weaker or ritualised form behavioural patterns from the innate characteristics of parading, threatening and fighting. In addition, there is a report of an old boar in which acoustic impulses (the noises of a food container being used by another boar) triggered off a demonstration of rank and appropriation at the feeding ground. This trigger was more forceful than „avoidance of the enemy“. Mention is made of a case of imitation and learning in the overcoming of an obstacle.
    Abstract: Résumé Dans un parc à sangliers situé en Autriche un sanglier mâle adulte a été observé lorsqu'il procédait à des marquages olfactifs et lorsqu'il défendait sa nourriture. Des pommes furent marquées olfactivement au moyen d'urine et de salive. Contrairement au mâle en question, des sujets juvéniles n'ont pas absorbé cette nourriture apreast en avoir goûté par voie olfactive. Le verrat défendit son lieu de nourrissage contre les humains. A cette occasion il manifesta, sous une forme atténuée ou ritualisée, un comportement spécifique de défi, de menace et de combat. On fait également état d'une démonstration de rang social et d'appropriation sur une aire de nourrissage par un sanglier mâle âgé déclenchée par des stimuli acoustiques simulant le bruit provoqué par l'utilisation de mangeoires par d'autres sangliers. Ce déclencheur était plus puissant que l'„évitement d'un ennemi“. On signale un cas d'imitation et d'apprentissage lors du franchissement d'un obstacle.
    Notes: Zusammenfassung In einem österreichischen Wildschweingatter wurde ein mehrjähriger Keiler beim Duftmarkieren und Verteidigen von Futter beobachtet. Mit Harn und Speichel wurden Äpfel geruchlich markiert. Jungtiere haben dieses Futter nicht verzehrt, nachdem sie es olfaktorisch geprüft hatten, wohl aber das markierende ♂. Gegenüber Menschen verteidigte der Keiler seinen Futterplatz. Dabei zeigte er in abgeschwächter od. ritualisierter Form Verhaltensweisen aus dem innerartlichen Imponier-, Droh- und Kampfverhalten. Es wird ferner berichtet über einen alten Keiler, bei dem akustische Reize, die Geräusche eines von anderen Wildschweinen benutzten Futterbehälters, eine Rang- und Inbesitznahmedemonstration am Futterplatz auslösten. Dieser Auslöser war stärker als die „Feindvermeidung“. Ein Fall von Nachahmung und Lernen bei der Überwindung eines Hindernisses wird erwähnt.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 39 (1980), S. 233-238 
    ISSN: 1434-6036
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The characteristic ferroelectric dispersion of the complex dielectric constant of the ferroelectric AgNa(NO2)2 is measured as function of temperature and hydrostatic pressure. For the first time the temperature and pressure dependences of the static order parameter susceptibility and the order parameter relaxation time could be reproducibly determined. The results are interpreted in terms of a kinetic Ising model, whose parameters show a characteristic pressure dependence. The results are discussed on the basis of thermodynamic relations and related to the dynamical behaviour of other order-disorder ferroelectrics.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The isochronal and isothermal recovery of the electrical resistivity after large homogeneous compression of copper and silver was measured with a low frequency eddy current method. Two relations between the recovery data and the flow stress were found: 1. For high purity copper and silver the recovery of the electrical resistivity with recrystallization is proportional to the square of the flow stress. 2. The temperature at which half of the resistivity decrease with recrystallization is reached may be related to the flow stressσ by the equation $$\sigma ^2 e^{ - a/T_R } = const$$ . The present experiments indicate that a simple relation between the quantitya and the activation energy for recrystallization cannot be given.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 296 (1980), S. 81-85 
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The half-life of the 1/2− isomer in89Mo has been determined in an experiment where an enriched92Mo target was irradiated by 350 or 700 ms bursts of 60 MeV protons. Analysis of the gamma-ray spectra collected as a function of time between irradiations revealed gamma rays at 118.8 and 268.5 keV decaying with a 190±15 ms half-life. The hindrance ofE3 transitions inN=47 andZ=47 nuclides is discussed.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    European food research and technology 138 (1968), S. 307-307 
    ISSN: 1438-2385
    Source: Springer Online Journal Archives 1860-2000
    Topics: Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Archives of dermatological research 178 (1938), S. 168-176 
    ISSN: 1432-069X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Zusammenfassung 1. Bei 188 hautgesunden Personen wurden, im Vergleich zu den bisher für Carotin und Vitamin A angegebenen Durchschnittswerten, sehr hochliegende Zahlen für Carotin und Vitamin A gefunden. Diese lassen sich jahreszeitlich (Frühjahr und Sommer) und durch die quantitativ und qualitativ reichliche Ernährungsweise der hiesigen Bevölkerung erklären. 2. Untersuchungen an 290 Hautkranken ergaben gegenüber den Gesunden eine durchschnittliche Herabsetzung des Carotin- (29%) und Vitamin A-Gehaltes (35,5%). Dabei zeigten flächenhafte Hauterkrankungen (Ekzem, Psoriasis, Dermatitiden) keine stärkere Herabsetzung der Werte als die übrigen Dermatosen. 3. 6 Lupuspatienten wiesen bei fast normalem Carotingehalt einen abnorm niedrigen Vitamin A-Durchschnittswert auf. Als Ursache wird eine mögliche Leberfunktionsstörung, bedingt durch die flächenhafte Hautentzündung, die mit intensiver ultravioletter und radioaktiver Strahlenwirkung kombiniert ist, in Erwägung gezogen. 4. Patienten mit alter Lues zeigten bei normalem Carotingehalt einen erniedrigten Vitamin A-Spiegel, der ebenfalls mit einer Leberfunktionsschädigung, infolge der reichlichen Zufuhr von Wismut, in Zusammenhang gebracht wird. Kontrolluntersuchungen bei 22 Patientennach einer vorgenommenen Malariakur lassen lediglich eine Herabsetzung des Serumcarotinspiegels, die der Ausdruck einer durch das Fieber bedingten Stoffwechselsteigerung sein dürfte, bei gleichbleibendem Vitamin A-Gehalt erkennen.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Archives of gynecology and obstetrics 205 (1968), S. 151-161 
    ISSN: 1432-0711
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 14 (1935), S. 1454-1456 
    ISSN: 1432-1440
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Zusammenfassung 1. Therapeutische Vitamin C-Zufuhr ruft, wenn auch nicht regelmäßig, eine Abnahme des Globulin-N und eine Zunahme des Albumin-N hervor, wobei gleichzeitig eine Herabsetzung der Blutsenkungsgeschwindigkeit stattfindet. 2. Der Vitamin C-Gehalt des Blutserums scheint in der Jugend höher zu liegen als im Alter. Hypovitaminosen sind zur Zeit mit Hilfe von Serumbestimmungen noch nicht sicher erfaßbar. 3. Gleichzeitige Zufuhr von thyreotropem Hormon und Vitamin C ruft eine Vergrößerung und Gewichtszunahme der Nebennieren hervor, die, im Gegensatz zur alleinigen Hormonzufuhr, nicht auf Zunahme der Rinden-, sondern der Marksubstanz beruht.
    Type of Medium: Electronic Resource
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