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  • 1
    Electronic Resource
    Electronic Resource
    Antecedents of survey response bias in business-to-business services (2003)
    Bradford : Emerald
    The @journal of business & industrial marketing 18 (2003), S. 366-375 
    Details
    ISSN: 0885-8624
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Economics
    Notes: Using a large-scale database of a major business services company, self-reported usage volume data were compared with actual usage volume. Several business-related factors were then examined in relation to the survey response bias. Survey response bias was found to be lower for clients that use the services more extensively, had been in business for a longer period of time, and have smaller number of employees. Survey response bias was also found to be lower when the level of involvement with the service (lower level of management in this study) was greater. Such response bias information would be useful for managers when making sales forecasts or market share estimations using survey responses.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1108/08858620310480269
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Charophyta: their use in paleolimnology (1994)
    Springer
    Journal of paleolimnology 10 (1994), S. 43-52 
    Details
    ISSN: 1573-0417
    Keywords: Charophyta ; evolution ; gyrogonite morphology ; ecology-paleoecology ; Argentina ; South America
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences
    Notes: Abstract Charophyta are common algae in limnic waters from many regions and are an interesting group from an evolutionary point-of-view, as they are believed to be related to the Chlorophyceae and land plants. Paleontological-botanical systematics are discussed, taking into consideration some new advances. Charophytes live in all types of inland waters and are sensitive to ecological change, and so they are very useful paleolimnological markers. Gaps concerning gyrogonite morphology in extant taxa and their responses to different environmental conditions must be described. This paper discusses data concerning ecological factors affecting the distribution of Argentinian Charophyta (principally distributed between 30°S and 40°S), gyrogonite morphology related to different ecological conditions, and the way that Charophyta can modify the environment.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00683145
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  • 3
    Electronic Resource
    Electronic Resource
    Quaternary charophytes from Salina del Bebedero, Argentina: their relation with extant taxa and palaeolimnological significance (1999)
    Springer
    Journal of paleolimnology 21 (1999), S. 307-323 
    Details
    ISSN: 1573-0417
    Keywords: charophytes ; gyrogonite morphology ; saline lakes ; palaeoecology ; Palaeobiogeography ; Argentina ; microfossils
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences
    Notes: Abstract Charophyte (Charales, green macroscopic algae) assemblages found in Quaternary shoreline sediments from Salina del Bebedero, Argentina, are described in detail, illustrated, and statistically analysed. Fossil gyrogonites, Late Pleistocene and Holocene in age, of Chara cf. hispida var. major (Hartman) Wood, Chara halina García, Chara hornemannii Wallmann, Chara bulbillifera (Donterberg) García, Lamprothamnium haesseliae Donterberg and Lamprothamnium succinctum (Braun ex Ascherson) Wood were identified. A comparison with extant charophyte species of similar ecological requirements allowed for an accurate systematical determination and provided useful data for complementary palaeoecological and palaeobiogeographical approaches. On this basis, a reconstruction of palaeo-salinities for the Salina del Bebedero lake, represented by eleven palaeo-beaches, is proposed. Also the associations of charophytes with the ostracods Cyprideis sp., Limnocythere sp., Pampacythere sp., Cypridopsis sp., Darwinula sp., Ilyocypris gibba (Randohr) Brady and Norman, and the foraminifers Ammonia sp., Elphidium gunteri Cole, Quinqueloculina sp., and one species of Discorbacea are analysed, since they are present in both the fossil and modern environments.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1008067112334
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  • 4
    Electronic Resource
    Electronic Resource
    Pleistocene Charophyta from Arroyo Perucho Verna, Province of Entre Rios, Argentina (1994)
    Springer
    Journal of paleolimnology 10 (1994), S. 53-58 
    Details
    ISSN: 1573-0417
    Keywords: Charophyta ; evolution ; gyrogonite morphology ; ecology-paleoecology ; Argentina ; South America
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences
    Notes: Abstract The Pleistocene charophytes from Arroyo Perucho Verna, Province of Entre Ríos, were analyzed.Chara contraria Br. ex Kütz.,C. contraria var.longilinea Cáceres,C. globularis Thuill. andTolypella intricata (Trent. ex Roth.) Leonh. var.apiculata (A. Br.) Wood were described and illustrated with scanning electron microscope. The assemblage indicates fresh alkaline to slightly saline waters, not very deep, in a lentic or sometimes lotic environment. Extant assemblages provide data for this paleoecological reconstruction.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00683146
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  • 5
    Electronic Resource
    Electronic Resource
    INTERPRETING THE LARGE LIMB ERUPTION OF JULY 9, 1982 (1997)
    Springer
    Solar physics 173 (1997), S. 359-376 
    Details
    ISSN: 1573-093X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A time series of K3 spectroheliograms taken at the Coimbra Observatory exhibits an erupting loop on the east limb on July 9, 1982 in active region NOAA 3804. The Goddard SMM Hard X-Ray Burst Spectrometer (HXRBS) observations taken during this period reveal a hard X-ray flare occurring just before the loop eruption is observed, and SMS-GOES soft X-ray observations reveal a strong long-duration event (LDE) following the impulsive phase of the flare. A Solwind coronagram exhibits a powerful coronal mass ejection (CME) associated with the erupting loop. Hα flare and prominence observations as well as centimeter and decimeter radio observations of the event are also reviewed. A large, north–south-oriented quiescent prominence reported within the upper part of the CME expansion region may play a role in the eruption as well. The spatial and temporal correlations among these observations are examined in the light of two different current models for prominence eruption and CME activation: (1) The CME is triggered by the observed hard X-ray impulsive flare. (2) The CME is not triggered by a flare, and the observed soft X-ray flare is an LDE due to reconnection within the CME ‘bubble’. It is concluded that this event is probably of a ‘mixed’ type that combines characteristics of models (1) and (2). The July 9 event is then compared to three other energetic CME and flare eruptions associated with the same active-region complex, all occurring in the period July 9 through September 4, 1982. It is noted that these four energetic events coincide with the final evolutionary phase of a long-lasting active-region complex, which is discussed in a companion paper (Bumba, Garcia, and Jordan, 1997). The paper concludes by addressing ‘the solar flare myth’ controversy in the light of this work.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1004907008317
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  • 6
    Electronic Resource
    Electronic Resource
    Chromospheric synoptic charts for the solar eclipse of November 3, 1994 (1995)
    Springer
    Solar physics 158 (1995), S. 379-381 
    Details
    ISSN: 1573-093X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The synoptic charts of the filaments and active regions near the solar limb are given for the eclipse of November 3, 1994, along with the positions of the prominences. A table helps to associate coronal and chromospheric structures.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00795670
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  • 7
    Electronic Resource
    Electronic Resource
    Quaternary and recent Lamprothamnium groves (Charophyta) from Argentina (1993)
    Springer
    Hydrobiologia 267 (1993), S. 143-154 
    Details
    ISSN: 1573-5117
    Keywords: Lamprothamnium ; Charophyta ; gyrogonite morphology ; ecology ; paleoecology ; Argentina ; South America
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Only recently have extant Lamprothamnium species been reported from the American continent. L. succinctum (A. Br. in Asch.) R. D. W. was found in Lago Titicaca, Bolivia and L. haesseliae Dont. en Laguna Luro and Laguna La Salada, Argentina. Fossil gyrogonites of L. succinctum and L. haesseliae, however, are here reported to be widely distributed in Quaternary sediments of Argentina, associated with other charophytes, ostracods and foraminiferans. Localities include Laguna del Siasgo, Laguna Salada Grande, Laguna Mar Chiquita, Laguna La Amarga and Salina del Bebedero. Lamprothamnium is a genus that prefers shallow, alkaline, hyposaline to mesosaline environments. Analysis of the characteristics of Laguna La Salada contributes information on the factors that influence the distribution of the genus. The morphology characteristics of the gyrogonites and oospores of L. haesseliae and the gyrogonites of L. succinctum are described. The use of Lamprothamnium as a biomarker and its application in the reconstruction of Quaternary saline environments are also discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00018796
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  • 8
    Electronic Resource
    Electronic Resource
    The Gleissberg Cycle of Minima (1998)
    Springer
    Solar physics 180 (1998), S. 495-498 
    Details
    ISSN: 1573-093X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract In this short article we show that the sunspot cycle minima exhibit a long cycle (Gleissberg) in addition to the 11-yr cycle. From 1750 onwards, three periods of the Gleissberg cycle can be detected.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1005018712900
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  • 9
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    New Approach to Fully Ordered fct-FePt Nanoparticles for Much Enhanced Electrocatalysis in Acid (2015)
    American Chemical Society
    Details
    Publication Date: 2015-03-03
    Print ISSN: 1530-6984
    Electronic ISSN: 1530-6992
    Topics: Chemistry and Pharmacology , Physics
    Published by American Chemical Society
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  • 10
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    Ultrathin Graphene-Like Carbon-Coated Iron Oxide Nanocrystals for Applications in Corrosive Environments (2019)
    American Chemical Society
    Details
    Publication Date: 2019-02-04
    Electronic ISSN: 2574-0970
    Topics: Chemistry and Pharmacology
    Published by American Chemical Society
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