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  • Articles  (75)
  • 2015-2019  (68)
  • 1975-1979  (7)
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  • 1
    Electronic Resource
    Electronic Resource
    Specialized Reference Works and Their Users. A Preliminary Study (1975)
    s.l. : American Chemical Society
    Journal of chemical information and modeling 15 (1975), S. 242-245 
    Details
    ISSN: 1520-5142
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ci60004a011
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Collineation groups generated by homologies of order greater than 2 (1978)
    Springer
    Geometriae dedicata 7 (1978), S. 387-398 
    Details
    ISSN: 1572-9168
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00152059
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Selective degeneration of two out of the nine types of synapses in cat caudate nucleus after cortical lesions (1978)
    Springer
    Experimental brain research 31 (1978), S. 67-80 
    Details
    ISSN: 1432-1106
    Keywords: Caudate ; Cat ; 9 Types of synapses ; Degenerated ; Cortico-striate boutons
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary In the cat caudate nucleus the same nine types of synapses are found as in putamen and fundus striati. The three parts of the striatum in the strict sense do not differ in the morphological differentiation of synapse types but only in their quantitative distribution. One-third of all synapses in the caudate nucleus are axo-spinous type IV synapses with a curved and divided asymmetric contact. This strongly suggests that the caudate nucleus interneuronal apparatus is dominated by centre-median input, in contrast to the putamen which is controlled by the cortico-striatal input to its internuncial cells and by its strong intrastriatal feedback mechanism. Extensive destruction of the convexity of the cortex and the medial cortex in one hemisphere results in dark degeneration of a large proportion of two of the nine types of caudate synapses: a) the axo-dendritic type VII synapses exciting the large aspiny caudate neurons and b) the axo-spinous type III synapses making contact with the small spiny neurons of the interneuronal cell apparatus.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00235805
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Catecholamines in adult iron deficiency patients (1979)
    Springer
    Cellular and molecular life sciences 35 (1979), S. 681-682 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Patients with iron deficiency whether uncomplicated or associated with other types of anemias, had plasma catecholamine levels which were significantly increased above normal controls. Patients with a variety of other anemias had no significant increase in catecholamine levels. Plasma catecholamine levels in uncomplicated iron deficient patients approached normal values as early as 3 h following oral FeSO4.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01960396
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Degeneration of two of nine types of synapses in the putamen after center median coagulation in the cat (1977)
    Springer
    Experimental brain research 28 (1977), S. 345-361 
    Details
    ISSN: 1432-1106
    Keywords: Putamen ; Cat ; Center median parvocellular neurons ; Ultrastructure ; Degenerated boutons (type VII and IV)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The cat putamen contains the identical nine types of synapses and the same proportion of axo-dendritic (or axo-somatic) synapses as described for the fundus striati. However, type III (cortico-striatal) (31∶16%) and type V (axon-collateral) (13∶1%) occur much more frequently and type I (nigro-striatal) much less frequently (14∶34%) in the putamen than in the fundus striati. Of the axo-spinous synapses only type IV, with densely arranged small round vesicles and interrupted, asymmetric contact, shows a dark degeneration after center median lesions, mainly in the parvocellular part. Of the six axo-dendritic (or axo-somatic) synapses, only type VII, with densely packed small round vesicles and asymmetric contact, is degenerated after the same lesion in the center median nucleus. However, after such lesions type VII synapses are much more frequently degenerated in the putamen than those of type IV.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00235716
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    Some pharmacological properties of the false cholinergic transmitter acetylpyrrolidinecholine and its precursor pyrrolidinecholine (1976)
    Springer
    Naunyn-Schmiedeberg's archives of pharmacology 295 (1976), S. 81-87 
    Details
    ISSN: 1432-1912
    Keywords: Acetylpyrrolidinecholine ; Pyrrolidinecholine ; Muscarine receptors ; Nicotine receptors ; Neuromuscular transmission
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The acetylcholine analogue acetylpyrrolidinecholine as well as the chline analogue pyrrolidinecholine were synthesized and the cholinergic properties of both substances were investigated on the guinea-pig ileum, rat blood pressure and frog rectus abdominis muscle. Acetylpyrrolidinecholine was 3–5 times less potent than acetylcholine on the three preparations tested. The dose-response curves to acetylpyrrolidinecholine were shifted to the right in a parallel manner by atropine and (+)-tubocurarine. The dissociation constants for atropine and (+)-tubocurarine obtained with acetylpyrrolidinecholine as agonist were not different from those obtained with acetylcholine. This indicates that acetylpyrrolidinecholine specifically stimulates muscarine and nicotine receptors. Eserine potentiated the effects of acetylcholine more than those of acetylpyrrolidinecholine. Pyrrolidinecholine was only a weak agonist on the guinea-pig ileum. It caused a rise of rat blood pressure in doses higher than 10 μmol per rat. Neuromuscular transmission of the phrenic nerve-diaphragm preparation of the rat was not impaired during a 150 min incubation period with 1 mM pyrrolidinecholine. It is suggested that the possible formation and release of acetylpyrrolidinecholine as a false cholinergic transmitter does not modify neuromuscular transmission in skeletal muscle.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00509777
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    Degenerated boutons in the fundus striati (nucleus accumbens septi) after lesion of the parafascicular nucleus in the cat (1976)
    Springer
    Cell & tissue research 172 (1976), S. 1-14 
    Details
    ISSN: 1432-0878
    Keywords: Fundus striati, cat ; Parafascicular neurons ; Degenerated boutons (two types) ; Parafasciculo-fundus projection ; Ultrastructure
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary An attempt has been made to reveal which of the nine different types of synapses in the fundus striati, discriminated in a previous study, degenerate following experimental lesions in the parafasciculo-center median complex of the cat. Two types of synaptic contacts were found to be degenerated two days after the lesion was performed: (1) the axo-spinous type IV, characterized by densely-packed, small, round vesicles and a strong asymmetric thickening, and, (2) the axo-dendritic or axo-somatic type VII, again characterized by small, round vesicles in a dense accumulation and an asymmetric thickening. After two days of survival the original characteristics of the boutons could still be recognized in both types of synapses. A positive correlation exists between the location and extent of the coagulation foci in the parafascicular nucleus and the appearance of degenerated boutons in the fundus striati. Therefore, the conclusion that the parafasciculofundus neurons terminate as type IV or type VII boutons is entirely justified. Additionally, the role of the special types of boutons in the synaptic organization of the fundus striati has beeen discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00226045
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    Paper (German National Licenses)
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  • 8
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    Shale gas: Energy innovation in a (non-)knowledge society: A press discourse analysis (2015)
    Oxford University Press
    Details
    Publication Date: 2015-04-07
    Description: For years, technological innovations have been the cause of controversy. In reaction to this, increasingly often the bodies responsible for implementing these innovations undertake social dialogue with stakeholders. An important environment for this is media discourse, which defines the problems and key actors and disseminates strategies for argumentation. Effective communication on public policies is one of the challenges in deliberative democracy. This paper aims to analyse the role of experts and knowledge in reference to the models of public communication on shale gas. Using a qualitative press analysis, an incoherence was observed in the understanding of knowledge and the profile of experts and the models of communication using them. The communication, which is rather oriented towards persuasion without legitimisation of scientific factual knowledge, fails. Reference in the discourse to the unknown or uncertain directs attention to the issues related to the strategic exploitation of nonknowledge.
    Print ISSN: 0302-3427
    Electronic ISSN: 1471-5430
    Topics: Nature of Science, Research, Systems of Higher Education, Museum Science
    Published by Oxford University Press
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  • 9
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    All-Cause Mortality up to and After Coronary Heart Disease and Stroke Events in European Middle-Aged Men: The PRIME Study [Brief Reports] (2015)
    American Heart Association (AHA)
    In: Stroke
    Details
    Publication Date: 2015-04-28
    Description: Background and Purpose— The aim was to investigate prospectively the all-cause mortality risk up to and after coronary heart disease (CHD) and stroke events in European middle-aged men. Methods— The study population comprised 10 424 men 50 to 59 years of age recruited between 1991 and 1994 in France (N=7855) and Northern Ireland (N=2747) within the Prospective Epidemiological Study of Myocardial Infarction. Incident CHD and stroke events and deaths from all causes were prospectively registered during the 10-year follow-up. In Cox’s proportional hazards regression analysis, CHD and stroke events during follow-up were used as time-dependent covariates. Results— A total of 769 CHD and 132 stroke events were adjudicated, and 569 deaths up to and 66 after CHD or stroke occurred during follow-up. After adjustment for study country and cardiovascular risk factors, the hazard ratios of all-cause mortality were 1.58 (95% confidence interval 1.18–2.12) after CHD and 3.13 (95% confidence interval 1.98–4.92) after stroke. Conclusions— These findings support continuous efforts to promote both primary and secondary prevention of cardiovascular disease.
    Keywords: Risk Factors, Epidemiology
    Print ISSN: 0039-2499
    Electronic ISSN: 1524-4628
    Topics: Medicine
    Published by American Heart Association (AHA)
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  • 10
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    The LMC geometry and outer stellar populations from early DES data (2015)
    Oxford University Press
    Details
    Publication Date: 2015-03-22
    Description: The Dark Energy Camera has captured a large set of images as part of Science Verification (SV) for the Dark Energy Survey (DES). The SV footprint covers a large portion of the outer Large Magellanic Cloud (LMC), providing photometry 1.5 mag fainter than the main sequence turn-off of the oldest LMC stellar population. We derive geometrical and structural parameters for various stellar populations in the LMC disc. For the distribution of all LMC stars, we find an inclination of i  = –38 $_{.}^{\circ}$ 14 ± 0 $_{.}^{\circ}$ 08 (near side in the north) and a position angle for the line of nodes of 0  = 129 $_{.}^{\circ}$ 51 ± 0 $_{.}^{\circ}$ 17. We find that stars younger than ~4 Gyr are more centrally concentrated than older stars. Fitting a projected exponential disc shows that the scale radius of the old populations is R 〉4 Gyr  = 1.41 ± 0.01 kpc, while the younger population has R 〈4 Gyr  = 0.72 ± 0.01 kpc. However, the spatial distribution of the younger population deviates significantly from the projected exponential disc model. The distribution of old stars suggests a large truncation radius of R t  = 13.5 ± 0.8 kpc. If this truncation is dominated by the tidal field of the Galaxy, we find that the LMC is ${\simeq } 24^{+9}_{-6}$ times less massive than the encircled Galactic mass. By measuring the Red Clump peak magnitude and comparing with the best-fitting LMC disc model, we find that the LMC disc is warped and thicker in the outer regions north of the LMC centre. Our findings may either be interpreted as a warped and flared disc in the LMC outskirts, or as evidence of a spheroidal halo component.
    Print ISSN: 0035-8711
    Electronic ISSN: 1365-2966
    Topics: Physics
    Published by Oxford University Press
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