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  • 1
    Electronic Resource
    Electronic Resource
    Determination of the geometrical configuration of naturally occurring mono-cis-lutein epoxides
    Amsterdam : Elsevier
    Phytochemistry 27 (1988), S. 547-549 
    Details
    ISSN: 0031-9422
    Keywords: 9-, 9'-, 13-, and 13'-mono-cis-lutein epoxides ; Compositae ; Helianthus annuus ; geometrical configuration. ; mono-cis-xanthophyll epoxides
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0031-9422(88)83139-X
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Isolation and characterization of 3,5,6-trihydroxy-carotenoids from petals ofLilium tigrinum (1998)
    Springer
    Chromatographia 48 (1998), S. 27-31 
    Details
    ISSN: 1612-1112
    Keywords: Column liquid chromatography ; Lilium tigrinum ; Carotenoids ; Xanthins
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary Reinvestigation by HPLC of the petals ofLilium tigrinum and the isolation of some minor compounds is reported. Using HPLC-controlled, preparative-column chromatography, 5,6-diakarpoxanthin (6), 6-epikarpoxanthin (2), 5,6-diacapsokarpoxanthin (8), and 9Z-antheraxanthin (9Z-13) were isolated and characterized. Based on spectroscopic data the absolute configurations of6 and8 were identical with those originating from paprika, thus the 5,6-diakarpoxanthin (6) and 5,6-diacapsokarpoxanthin (8) have the 3S, 5S, 6S configuration and 6-epikarpoxanthin (2) has the 3S, 5R, 6S configuration.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02467511
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  • 3
    Electronic Resource
    Electronic Resource
    SU(2)×SU(2) ELECTROWEAK THEORY IN LEP 1 DATA ON Z PARTICLE PRODUCTION (2000)
    Springer
    Foundations of physics 13 (2000), S. 193-196 
    Details
    ISSN: 1572-9524
    Keywords: LEP 1 data ; SU(2)×SU(2) ; electroweak theory ; Z′ bosons ; GUTS
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Recent data obtained by LEP1 are discussed and their potential implication for the existence of a Z′ particle. This letter advocates that this fits within the basic tenet of an SU(2)×SU(2) extended theory of the standard model of electroweak interactions. This extended electroweak model is motivated by nonabelian electrodynamics that provides an effective calculus for nonlinear optics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1007887601668
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    Paper (German National Licenses)
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  • 4
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    Gravity anomalies and flexure of the Brazilian Shield beneath the Bolivian Andes (1985)
    In:  Other Sources
    Details
    Publication Date: 2011-08-19
    Keywords: GEOPHYSICS
    Type: Earth and Planetary Science Letters (ISSN 0012-821X); 75; 1, Se; 81-92
    Format: text
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  • 5
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    Gravity anomalies and the structure of western Tibet and the southern Tarim Basin (1984)
    In:  Other Sources
    Details
    Publication Date: 2011-08-19
    Description: Gravity anomalies across the western part of the Tarim Basin and the Kunlun mountain belt show that this area is not in local isostatic equilibrium. These data can be explained if a strong plate underlying the Tarim Basin extends southwestward beneath the belt at least 80 km and supports part of the topography of northwest Tibet. This corroborates Norin's inference that late Tertiary crustal shortening has occurred in this area by southward underthrusting of the Tarim Basin beneath the Kunlun. This study places a lower bound on the amount of underthrusting.
    Keywords: GEOPHYSICS
    Type: Geophysical Research Letters (ISSN 0094-8276); 11; 1251-125
    Format: text
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  • 6
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    Seismicity, fault plane solutions, depth of faulting, and active tectonics of the Andes of Peru, Ecuador, and southern Colombia (1983)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: The long-period P waveforms observed for 17 earthquakes in the Peruvian Andes during 1963-1976 are compared with synthetic waveforms to obtain fault-plane solutions and focal depths. The morphological units of the Peruvian Andes are characterized: coastal plains, Cordillera Occidental, altiplano and central high plateau, Cordillera Oriental, and sub-Andes. The data base and analysis methodology are discussed, and the results are presented in tables, diagrams, graphs, maps, and photographs illustrating typical formations. Most of the earthquakes are shown to occur in the transition zone from the sub-Andes to the Cordillera Oriental under formations of about 1 km elevation at focal depths of 10-38 km. It is suggested that the sub-Andean earthquakes reflect hinterland deformation of a detached fold and thrust belt, perhaps like that which occurred in parts of the Canadian Rockies. From the total crustal shortening evident in Andean morphology and the shortening rate of the recent earthquakes it is estimated that the topography and crustal root of the Andes have been formed during the last 90-135 Myr.
    Keywords: GEOPHYSICS
    Type: Journal of Geophysical Research (ISSN 0148-0227); 88; 10403-10
    Format: text
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  • 7
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    Focal depths and fault plane solutions of earthquakes under the Tibetan plateau (1983)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: Seismic data are used to place constraints on the focal depths and fault plane solutions of 16 crustal earthquakes beneath the highest parts of the Tibetan plateau. Synthetic seismograms were computed for large events from 1962 to 1976, and compared with the observed waveforms. All of the events studied are found to have occurred at depths less than 15 km and probably between 5 and 10 km, suggesting that the crust below 10-15 km is essentially aseismic, as in most of the Western United States. Fault-plane solutions show combinations of normal and strike slip faulting with T axes consistently oriented approximately east-west, supporting the inference that the upper crust of Tibet is actively extending in an east-west direction. In addition, solutions for two intermediate-depth events at depths of 90 and 85 km show primarily normal faulting with east-west T axes. Results show that brittle deformation occurs at shallow depths in the crust and in the uppermost mantle, but the lower crust seems to be aseismic.
    Keywords: GEOPHYSICS
    Type: Journal of Geophysical Research; 88; Feb. 10
    Format: text
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  • 8
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    The uppermost mantle P wave velocities beneath Turkey and Iran (1980)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Keywords: GEOPHYSICS
    Type: Geophysical Research Letters; 7; Jan. 198
    Format: text
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  • 9
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    A possible dependence of tectonic strength on the age of the crust in Asia (1981)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: In Asia, the intensity and style of active tectonics appears to depend on the age of the last orogenic activity. The shields have remained essentially undeformed during the India-Eurasian collision, but Paleozoic and Mesozoic orogenic belts apparently have been reactivated by this collision, with a suggestion of greater reactivation and more diffuse deformation of the younger belts. If the greater observed heat flow in regions of more recent orogenic activity reflects, at least in part, a greater heat flow from the mantle beneath the younger belts, then the temperatures in the mantle beneath the younger belts should be higher than beneath older belts and shields. Because of the strong dependence on temperature of the creep strength of minerals, particularly of olivine, the crust and mantle beneath the hotter, younger belts should be much weaker than those beneath older belts. This difference in temperature, and consequent difference in strength, may be the cause of the greater reactivation of younger belts.
    Keywords: GEOPHYSICS
    Type: Earth and Planetary Science Letters; 52; 1, Ja; Jan. 198
    Format: text
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  • 10
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    Tectonic deformation of the Andes and the configuration of the subducted slab in central Peru: Results from a micro-seismic experiment (1983)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: The vast majority of the microearthquakes recorded occurred to the east: on the Huaytapallana fault in the Eastern Cordillera or in the western margin of the sub-Andes. The sub-Andes appear to be the physiographic province subjected to the most intense seismic deformation. Focal depths for the crustal events here are as deep as 50 km, and the fault plane solutions, show thrust faulting on steep planes oriented roughly north-south. The Huaytapallana fault in the Cordillera Oriental also shows relatively high seismicity along a northeast-southwest trend that agrees with the fault scarp and the east dipping nodal plane of two large earthquakes that occurred on this fault in 1969. The recorded microearthquakes of intermediate depth show a flat seismic zone about 25 km thick at a depth of about 100 km. This agrees with the suggestion that beneath Peru the slab first dips at an angle of 30 deg to a depth of 100 km and then flattens following a quasi-horizontal trajectory. Fault plane solutions of intermediate depth microearthquakes have horizontal T axes oriented east-west.
    Keywords: GEOPHYSICS
    Type: NASA-CR-175445 , NAS 1.26:175445
    Format: application/pdf
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