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  • 1
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 93 (1989), S. 2181-2184 
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 275 (1978), S. 439-440 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Oestrogens given in physiological amounts to ovariectomised female rhesus monkeys increase the sexual behaviour of the pair, whereas injections of progestins antagonise the effects of oestrogen7. Testosterone given in pharmacological amounts to ovariectomised females both increases female sexual ...
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1572-879X
    Keywords: Methanol synthesis ; zinc-chromium mixed oxides
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The catalytic behaviour of Zn/Cr mixed oxides with different compositions was investigated as a function of the bulk and surface properties. It was observed that non-stoichiometric spinel-type phases were stable also in the reaction conditions, in which zinc-surface enrichment did not occur. The maximum productivity in methanol was observed for monophasic non-stoichiometric spinel-type samples with a Zn/Cr ratio near to one, whereas the samples richest in zinc, for which a side phase, ZnO also was detected, showed a strong decrease in activity. The catalytic data support the hypothesis that non-stoichiometric spinel is the active phase for the synthesis of methanol on coprecipitated Zn-Cr catalysts.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Annals of operations research 16 (1988), S. 1-12 
    ISSN: 1572-9338
    Keywords: Planning systems ; expert systems ; knowledge representation ; inspection plans ; construction plans
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Economics
    Notes: Abstract Traditional O.R. systems are compared with problem solving in Artificial Intelligence via Expert Systems. The discussion centers on explicit knowledge representation. The general aspects are illustrated by two planning systems: · LESP 2: A learning system for inspection plan generation · IDA: A system for finding functions and solutions in construction
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Annals of operations research 16 (1988), S. IX 
    ISSN: 1572-9338
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Economics
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Studia logica 47 (1988), S. 181-191 
    ISSN: 1572-8730
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Philosophy
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    European journal of clinical pharmacology 11 (1977), S. 459-461 
    ISSN: 1432-1041
    Keywords: 16α-gitoxin ; 16-acetyl-16α-gitoxin ; ouabain ; digitoxin ; albumin binding
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary The binding of semi-synthetic (16α-gitoxin and its 16-acetate) and naturally occurring cardioactive glycosides (digitoxin, ouabain) to human serum albumin was studied using equilibrium dialysis, ultracentrifugation and gel filtration. 16α-gitoxin was 75% bound and its 16-acetate 95%. The percentage binding of digitoxin and ouabain was in good agreement with values reported in literature.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Behavioral ecology and sociobiology 16 (1985), S. 165-170 
    ISSN: 1432-0762
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Polybia sericea (Olivier) (Hymenoptera: Vespidae) foragers were trained to visit experimental foraging plots and tests were conducted to determine the role of visual, olfactory, and chemotactile cues in prey location. Foragers approached prey from downwind and hovered downwind of visual and olfactory stimuli. Olfactory cues were more likely to elicit landing than were visual cues. Biting of potential prey was most consistently elicited by a combination of visual, tactile, and chemotactile cues. Foragers encountering large prey carried a piece back to the nest and returned for prey remains. These returning foragers used visual cues to direct intensive aerial search; olfactory prey cues elicited landing.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Journal of orofacial orthopedics 50 (1989), S. 294-300 
    ISSN: 1615-6714
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary A precondition for satisfactory (long-lasting) prosthetic results is a good occlusion. This can sometimes only be achieved with the aid of orthodontics. This article concludes that orthodontics can be carried out in patients with reduced periodontal support provided, thorough periodontal treatment is carried out initially and treatment goals and biomechanics are carefully considered.
    Abstract: Résumé Pour que de soins prothétiques soient durables, il est essentiel de veiller à une bonne occlusion. Ce qui n'est souvent possible qu'en ayant recours à l'orthodontie. Il a été démontré qu'avec un traitement parodontal précis au départ, la délimitation exacte de l'objet des soins une bonne connaissance de la biomécanique, l'orthodontie s'avérait possible et recommandable même chez les patients présentant des troubles parodontaux.
    Notes: Zusammenfassung Eine Grundvoraussetzung für eine dauerhafte prothetische Versorgung ist eine gute Okklusion. Das kann old nur mit Hilfe der Orthodontie erreicht werden. Es wird gezeigt, daß mit exakter initialer Parodontalbehandlung, genauer Absteckung der Behandlungsziele und der Kenntnis moderner Biomechanik Orthodontis auch beim parodontal reduzierten Patienten möglich und empfehlenswert ist.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Journal of orofacial orthopedics 38 (1977), S. 44-56 
    ISSN: 1615-6714
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary In this study the problems produced by congenital absence of teeth are considered. A group of 241 persons with missing teeth of the permanent dentition are described. In this condition certain teeth are not formed and others grow but are reduced in form and size. The large scale of the material examined allows a detailed phenogenetic analysis to be made of the variance of certain characteristics.
    Abstract: Résumé Les auteurs traitent ici des problèmes relatifs à l'hétérogénie des dysplasies dentaires héréditaires. Ils analysent un groupe de 241 personnes présentant une réduction du nombre des dents permanentes. Les causes des agénésies résultent de mutations héréditaires à dominance autosomale dont les effects peuvent aussi bien réduire la forme et la taille de certaines dents, que les supprimer. L'ampleur des phénomènes observés permet de se livrer à une analyse phénogénétique détaillée tant en ce qui concerne la multiplicité de la formation de ces caractères que celle du développement de ces caractères.
    Notes: Zusammenfassung Die Problematik der Heterogenie von erblichen Zahnmangelzuständen wird umrissen. Eine 241 Personen umfassende Sippe mit multipler Zahnunterzahl der bleibenden Dentition wird beschrieben. Die Ursache der Agenesien ist gegeben durch eine auf viele Zahnanlagen wirkende, autosomal dominant erbliche Mutation, wodurch bevorzugt bestimmte Zähne nicht angelegt werden und andere bezüglich Form und Größe reduziert zur Ausbildung gelangen. Der Umfang des Beobachtungsgutes erlaubt eine ausführliche phänogenetische Analyse insbesondere in bezug auf die Varianz der Merkmalsbildung und Merkmalsausprägung.
    Type of Medium: Electronic Resource
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