991 resultados para Hecker-Stampehl, Jan
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"Liste générale des oeuvres de Jan Steen": p. [97]-189.
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At head of half-title: Masters in art, a series of illustrated monographs issued monthly.
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From Jan. 1826-July 1830 title reads: American journal of education. In August 1830 the title was changed to American Annuals of Education and instruction. The numbers for August-Dec. 1830, however, were issued both under this later title (as 3d ser., b.1, no 1-4) and under the title American journal and annals of education and instruction, new ser., v.1 of the 3d ser. They are preceded by 24 pages ("Editor's address" and "Sketches of Hofwyl") reprinted from the numbers for Aug.-Dec. 1830) In 1838 the title was shortened to American annuals of education. Editors: 1826-29, Williams Russell.--1830-37, W.C. Woodbridge.--1837--38 W.A. Alcott.
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Mode of access: Internet.
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Mode of access: Internet.
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Mode of access: Internet.
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Press Release from the School of Medicine Initiative published January 2005.
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This flyer promotes the event "A Conversation on the Economics of Transition in Cuba, Presentation by Jan švejnar, Columbia University with economists Jorge Salazar-Carrillo and Rolando Castaneda", sponsored by the Knight Foundation and co-sponsored by FlU's Cuban Research Institute.
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The surface and sub-ice layer habitats and their metazoan fauna were studied on a drifting pack-ice floe in the western Weddell Sea from 29 November 2004 to 1 January 2005 during the "Ice Station POLarstern" (ISPOL). Flooding of the floe occurred at some places, and the establishment of surface layers with a brownish colour due to growing algae was observed at several sampling sites. The average surface-layer temperature, brine salinity and brine volume were -1.4 °C, 25.3 and 54%, respectively. The temperature-salinity relationship in the surface layer was seldom at equilibrium conditions. Chlorophyll a (Chl a) concentrations in the brine varied between 1.0 and 53.5 µg /L. Surface-layer thickness, salinity, Chl a concentration and copepod abundances were generally higher at the edge of the floe than in the inner part. The sympagic copepod species Drescheriella glacialis/racovitzai and Stephos longipes, with abundances ranging between 0 and 3830 ind/L (median: 2 ind/L) and 0 and 1293 ind/L (median: 4 ind/L), respectively, were the dominant members of the surface-layer meiofauna. Their populations consisted mainly of adults and early naupliar stages, which points to an active reproduction of these species within the surface layer. Other taxa found in the surface layer were undetermined turbellarians, the gastropod Tergipes antarcticus, and, for the first time, the ctenophore Callianira antarctica, and the amphipods Eusirus antarcticus and Eusirus tridentatus. During the course of our study, slight melting at the ice underside took place, releasing sympagic organisms to the water column. Chl a concentrations in the sub-ice water layer were very low (0.1-0.5 µg /L), except for 25 December when the Chl a concentration at 0 m depth increased to 2.3 µg /L. The most dominant sympagic copepod species found in the sub-ice layer was Ectinosoma sp., with abundances ranging between 1 and 599 ind/m**3 (median: 25 ind/m**3). Other sympagic copepod species occurring regularly in this habitat were D. glacialis/racovitzai, Diarthrodes cf. lilacinus, Idomene antarctica and S. longipes. All of these sympagic species were generally found in higher abundances at 0 m depth underneath the ice than at 5 m depth, in contrast to pelagic copepod species that occurred more frequently at 5 m depth. Niche separation and probable life-cycle strategies of dominant sympagic metazoans are discussed.
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General note: Title and date provided by Bettye Lane.
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Photographs from the February 1997 Bermuda meeting. Courtesy of Gert-Jan van Ommen.