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  • 1
    Electronic Resource
    Electronic Resource
    Calculation of the end-to-end vector distribution function for short poly(dimethylsiloxane), poly(oxyethylene), and poly(methylphenylsiloxane) chains (1985)
    s.l. : American Chemical Society
    Macromolecules 18 (1985), S. 2225-2231 
    Details
    ISSN: 1520-5835
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ma00153a028
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  • 2
    Electronic Resource
    Electronic Resource
    Potentiating effect of phenylephrine on isoproterenol activation of thyroxine type II deiodinase in the pineal gland of adult rats (1993)
    Springer
    Cellular and molecular life sciences 49 (1993), S. 329-331 
    Details
    ISSN: 1420-9071
    Keywords: Pineal ; thyroxine ; deiodinase ; phenylephrine ; isoproterenol
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract In the present study we show, for the first time, that phenylephrine (PHE), an α-adrenergic receptor agonist, potentiates the effect of isoproterenol (ISO), a β-adrenergic agonist, in activating pineal type II5′-deiodinase (5′-D) activity. The potentiating effect of PHE was observed only at doses of ISO which induce submaximal activation of the enzyme. However, at doses which lead to maximal activation of the enzyme, PHE was ineffective. The results suggest that not only β-, but also α-adrenergic receptors, are involved in the sympathetic noradrenergic regulation of pineal 5′-D activity in the adult rat.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01923413
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  • 3
    Electronic Resource
    Electronic Resource
    Morphological features of Pick's and atypical Alzheimer's disease in Down's syndrome (1982)
    Springer
    Acta neuropathologica 58 (1982), S. 249-254 
    Details
    ISSN: 1432-0533
    Keywords: Alzheimer's disease ; Pick's disease ; Down's syndrome ; Pick body ; Neurofibrillary change
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary This is a pathological analysis of a 50-year-old severely mentally retarded female with trisomy 21 who five years prior to her demise developed progressive dementia, epileptic seizures and choreiform movements. The necropsy revealed gross and microscopic features of Alzheimer's and Pick's disease. Ultrastructurally the majority of neurofibrillary changes and all studied Pick bodies consisted of 15 nm straight tubules. A few neurofibrillary changes were composed of 22 nm paired helical filaments, which were also found in the enlarged neurites of neuritic plaques. A few paired helical filaments were interspersed between straight tubules of Pick bodies. These findings in a patient with Down's syndrome and previous reports of atypical features of Alzheimer's disease indicate that very probably our case is a variant of Alzheimer's disease, thus broadening the spectrum of pathological changes observed in Alzheimer's disease.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00688605
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  • 4
    Electronic Resource
    Electronic Resource
    Defects Identified in SiC and Their Implications (2008)
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 600-603 (Sept. 2008), p. 285-290 
    Details
    ISSN: 1662-9752
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Defect signatures, such as deep level positions, hyperfine parameters, local vibrationalmodes and optical transitions characterize a defect and enable the identification of defect centers. Thisidentification is a key to an understanding of complex phenomena like the defect kinetics. Albeitdensity functional theory enabled the identification of several defects and their kinetic properties, anew approach is needed to address the optical excitation of defect. Within a quasiparticle theory andtaking into account excitonic effects we analyze the excited states of VC+
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/20/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.600-603.285.pdf
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  • 5
    Electronic Resource
    Electronic Resource
    Density functional study of adsorption of molecular hydrogen on graphene layers (2000)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 112 (2000), S. 8114-8119 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Density functional theory has been used to study the adsorption of molecular H2 on a graphene layer. Different adsorption sites on top of atoms, bonds and the center of carbon hexagons have been considered and compared. We conclude that the most stable configuration of H2 is physisorbed above the center of a hexagon. Barriers for classical diffusion are, however, very small. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.481411
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  • 6
    Electronic Resource
    Electronic Resource
    Multiple dens invaginatus affecting maxillary lateral incisors and a supernumerary tooth (1997)
    Oxford, UK : Blackwell Publishing Ltd
    Dental traumatology 13 (1997), S. 0 
    Details
    ISSN: 1600-0595
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract Dens invaginatus is a developmental variation resulting from an alteration in the normal growth pattern of the dental papilla of a tooth. This anomaly occurs predominantly in maxillary permanent lateral incisors. Multiple occurrence in maxillary incisor teeth in the same patient has frequently been reported, and examination of bilateral teeth for the anomaly is often carried out routinely. This paper reports an unusual case of multiple invaginations, including dens invaginatus affecting maxillary lateral incisors and a supernumerary tooth and minor imaginations of the upper canines. Moreover, the case illustrates the importance of examining all the teeth in patients who present with dens invaginatus and palatal pits in incisors and canines. The possibility that the supernumerary tooth had resulted from gemination of the lateral incisor tooth germ is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-9657.1997.tb00039.x
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  • 7
    Electronic Resource
    Electronic Resource
    Effect of eugenol on macrophage adhesion in vitro to plastic surfaces (1998)
    Oxford, UK : Blackwell Publishing Ltd
    Dental traumatology 14 (1998), S. 0 
    Details
    ISSN: 1600-0595
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract— This study was performed to investigate the in vitro effect of eugenol on substrate adherence capacity of macrophages. hlacro-phages were obtained from Wistar rats. The adherence capacity of macrophages to the plastic surface of Eppendorf tubes was determined. Assays were canied out in these tubes for 15 min of incubation at 37°C in a humidified atmosphere of 5% CO2 in air. Control peritoneal macrophages showed an adherence index=52.5%. Eugenol decreased the adherence index of macrophages in a dose-dependent manner. A 1:1000 dilution of eugenol decreased the adherence index of macrophages by 16.6% (P〈0.05). Lower dilutions (1:100 and 1:10) greatly decreased the adherence index by 51% and 96.2% respectively (P〈0.01). Taking into account that substrate adherence is the first step in the phagocytic process of macrophages and in antigen presentation, eugenol could inhibit macrophage function and modulate immune and inflammatory reactions in dental pulp and periapical tissues.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-9657.1998.tb00813.x
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  • 8
    Electronic Resource
    Electronic Resource
    Number of roots and canals in maxillary first premolars: study of an Andalusian population (1999)
    Oxford, UK : Blackwell Publishing Ltd
    Dental traumatology 15 (1999), S. 0 
    Details
    ISSN: 1600-0595
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract— A study of 150 extracted maxillary first premolars from citizens of Seville, Andalusia, southern Spain, revealed 60 teeth with one root (40.0%), 85 teeth with two roots (56.7%) and five teeth with three roots (3.3%). The distribution of root canal shapes in the sample showed that all teeth with two or three roots had type I root canals (each canal had one apical foramen). Conversely, most of the single-rooted maxillary first premolars had root canal shape type II (two canals converging in the same apical foramen). Only 1.3% of the teeth had a unique orifice in the pulp chamber and only one root canal. These results emphasized the importance of good knowledge of the root canal morphology and the need for a careful radiographic examination as part of competent root canal therapy of maxillary first premolars.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-9657.1999.tb00755.x
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  • 9
    Electronic Resource
    Electronic Resource
    A case of combined dental development abnormalities: importance of a thorough examination (1998)
    Oxford, UK : Blackwell Publishing Ltd
    Dental traumatology 14 (1998), S. 0 
    Details
    ISSN: 1600-0595
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract— This report describes a case of combined dental development abnormalities. A patient with a previous ectopically erupted supernumerary maxillary canine presented a new ectopically erupted supernumerary premaxillary tooth with dens invaginatus (Oehlers' type 2) and an aberrant coronal morphology, including a pit in the distal portion of the palatal surface. This tooth would have been diagnosed earlier if a panoramic radiograph had been taken at the first visit 5 months before. This case represents a good example of combined dental development abnormalities, i.e., a numerical anomaly (the supernumerary tooth), an alteration of dental position (the ectopic eruption), an alteration of dental morphology (the aberrant coronal shape), and the invagination. This case highlights the importance of a thorough examination, including complementary radiography, of patients with a dental anomaly.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-9657.1998.tb00819.x
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  • 10
    Electronic Resource
    Electronic Resource
    The formation of polymeric model biomembranes from diacetylenic fatty acids and phospholipids
    Amsterdam : Elsevier
    Biochimica et Biophysica Acta (BBA)/Biomembranes 602 (1980), S. 213-216 
    Details
    ISSN: 0005-2736
    Keywords: Cholesterol ; Diacetylene ; Fatty acid analog ; Gramicidin ; Phospholipid ; Polymeric membrane
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Medicine , Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0005-2736(80)90304-1
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