2,576 research outputs found
Faust an Fäden : das Puppenspiel vom Doktor Faust und seine Beziehung zu Goethe ; ein Beitrag zum Goethe-Gedenkjahr 1949 ; mit Aufnahmen aus der Inszenierung der Marionettenbühne Barthold / Helmut Fuchs. Hrsg. von der Marionettenbühne Barthold, Halle/Saale
No full textFAUST AN FÄDEN : DAS PUPPENSPIEL VOM DOKTOR FAUST UND SEINE BEZIEHUNG ZU GOETHE ; EIN BEITRAG ZUM GOETHE-GEDENKJAHR 1949 ; MIT AUFNAHMEN AUS DER INSZENIERUNG DER MARIONETTENBÜHNE BARTHOLD / HELMUT FUCHS. HRSG. VON DER MARIONETTENBÜHNE BARTHOLD, HALLE/SAALE
Faust an Fäden : das Puppenspiel vom Doktor Faust und seine Beziehung zu Goethe ; ein Beitrag zum Goethe-Gedenkjahr 1949 ; mit Aufnahmen aus der Inszenierung der Marionettenbühne Barthold / Helmut Fuchs. Hrsg. von der Marionettenbühne Barthold, Halle/Saale (1)
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Faust an Fäden (7)
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Larval responses to turbulence and temperature in a tidal inlet: Habitat selection by dispersing gastropods?
No full textAuthor Posting. © Sears Foundation for Marine Research, 2010. This article is posted here by permission of Sears Foundation for Marine Research for personal use, not for redistribution. The definitive version was published in Journal of Marine Research 68 (2010): 153-188, doi:10.1357/002224010793079013.Marine larval dispersal is affected by hydrodynamic transport and larval behavior, but little is known about how behavior affects large-scale patterns of dispersal and recruitment. Intertidal habitats are characterized by strong and variable turbulence relative to shelf and pelagic waters, so larval responses to turbulence may affect both dispersal and habitat selection. This study combined observations and theoretical approaches to model gastropod larval responses to multiple physical variables in a well-mixed tidal inlet. Physical measurements and larvae were collected in July 2004 in Barnstable Harbor, Massachusetts (USA). Physical measurements were incorporated in an advection-diffusion model where larval vertical velocity is a function of turbulence dissipation rate, temperature, and the temperature gradient. Modeled larval distributions were fitted to observed concentration profiles by maximum likelihood to estimate larval behavioral velocity (swimming or sinking) as a function of environmental conditions. These quantitative behavior estimates were used to test hypotheses about behavioral differences among groups and to assess the relative impact of different cues on overall larval behavior. Larvae of five common gastropod species from different coastal habitats reacted most strongly to turbulence but had genus-specific responses to environmental cues. Larvae of a species from tidal inlets (the mud snail Nassarius obsoletus) had near-zero velocities under calmer conditions and sank in strong turbulence. In contrast, larvae from exposed beach habitats (Crepidula spp. and Anachis spp.) sank in weak turbulence and swam up in strong turbulence, with additional responses to temperature and temperature gradient. Larval responses also differed between small and large size classes and between flood and ebb tides. Behavior of mud snail larvae would contribute to retention inside the inlet and near adult habitats, whereas behavior of beach snail larvae would contribute to rapid export from muddy inlets lacking suitable adult habitats.This work was funded by the Woods Hole Oceanographic Institution (WHOI) Coastal Ocean
Institute, the WHOI Rinehart Coastal Research Center, the National Science Foundation (NSF OCE-
0326734), NSF and US Office of Naval Research grants to S. Elgar and B. Raubenheimer, and the
WHOI Sea Grant (National Oceanic and Atmospheric Administration, Grant No. NA16RG2273,
project no. R/O-38-PD). Analyses were completed while HLF was a postdoctoral scholar at Scripps
Institution of Oceanography (SIO), supported by the California Current Ecosystem Long-Term Ecological
Research program (NSF OCE-0417616) and by SIO funding to P. Franks
Mussel larval responses to turbulence are unaltered by larvalage or light condition
No full textLarval responses to hydromechanical cues potentially have important effects on larval dispersal and settlement. This study examined the behavior of mussel larvae (Mytilus edulis) in laboratory-generated turbulence representative of nearshore currents. We video recorded the behavior of early- and late-stage veligers in a grid-stirred tank at five turbulence levels under light and dark conditions. Water velocities and kinetic energy dissipation rates were measured using particle image velocimetry and acoustic Doppler velocimetry. We characterized the vertical velocity distributions for sinking, hovering, and swimming modes in still water and calculated the average larval behavioral velocity in turbulence. In still water, young larvae had more positive (upward) velocities than old larvae, and both stages had more positive velocities in light than in dark. In turbulence, the mean larval vertical velocity varied from positive at low dissipation rates to negative at dissipation rates above a threshold of 8.3 £ 1022 cm2 s23. At this threshold, the Kolmogorov length scale (h ¼ 590mm) was two to three times the mean larval shell lengths (171–256mm), implying that turbulence is detectable even by larvae that are smaller than the smallest eddies. Responses to turbulence were unaffected by larval age or light conditions and contributed substantial behavioral variation. By sinking in strong turbulence, mussel larvae could increase their flux to the bed in energetic coastal flows, particularly over rough substrates like mussel beds. The response to turbulence by early-stage larvae will also affect their dispersal and may help larvae remain near coastal populations.Peer reviewedOriginally published in Limnology and Oceanography: Fluids & Environments (2011) and available via this link: http://lofe.dukejournals.org/content/1/120.full.pdfCopyright 2011 by the Association for the Sciences of Limnology and Oceanography, Inc
Frieda Fuchs Collection 1907-1957
No full textThe collection contains materials representing the academic career of Frieda Fuchs, from her early school years, through her doctoral studies and research into psychology in Germany, to her career in the United States. The following material is from her earlier years in Germany: grade certificates from the Grossherzogliche Seminar für Volksschullehrerinnen in Darmstadt indicating good marks (1907-1914); her teaching contract for the Israelitische Volksschule (1916), certificates confirming satisfactory studies and a diploma granting a doctoral degree from the Universtät Frankfurt am Main, in recognition of her dissertation "Experimentelle Studien über das Bewegungsnachbild" (1927-1928). The following material is from either shortly before or after her emigration to the United States: editions of her curriculum vitae (1940-1941); letters of recommendation, job correspondence and offers (1939-1942), report entitled "Von Nachbildern und ihrer Bedeutung," undated. Also included is an offprint, signed by the author, Dr. S. Hirsch, entitled "Die letzten Millimeter der arteriellen Strombahn," and two photographs of Frieda Fuchs approximately ages 30 and 50.Frieda Fuchs was born in Dieburg in 1893. She studied at the teacher's college in Darmstadt and the University in Frankfurt, receiving her doctoral degree in in 1928. From 1914 through 1940 she taught at the Israelitische Volksschule in Frankfurt am Main. She also gave classes at the Heim des Juedischen Frauenbundes in Neu-Isenburg. She immigrated to the United States in 1940 and found employment with the congregation of Rabbi Dr. Breuer in New York. At the same time she enlisted the support of the American Psychological Association Committee on Displayed Foreign Psychologists. She died in New York in 1974.Processed for digitizationdigitized2007110
Protoconch morphology of Conoteuthis (Diplobelida, Coleoidea) and its implications on the presumed origin of the Sepiida
No full textThe phylogenetic origin of the Sepiida is still unclear. The presumed derivation from diplobelid belemnoids can be tested by comparison of their initial chambers (protoconchs). The first investigation of a juvenile phragmocone of the diplobelid Conoteuthis hayakawai from the Cenomanian of Hokkaido (northern Japan) yielded surprising insights into the internal protoconch morphology of the Diplobelida. The Conoteuthis protoconch exhibits in many aspects a mosaic of the belemnitid and the spirulid protoconch types. Whereas the sepiid protoconch represents most probably a modification of the spirulid type, the Conoteuthis protoconch is unique in having a closed (imperforated) proseptum. Apart from this, Conoteuthis differs in many other characters from the earliest sepiids (Ceratisepia, Belosepia), which makes a closer relationship unlikely. (C) 2011 Elsevier Ltd. All rights reserved.German Research Foundation [FU 762/1-1
Transparenz löst ein Dilemma: Akustik und Raum. Tl.1
No full textS.26-30"Laute Räume" werden landläufig durch Absorptionsmaßnahmen bedämpft, die sich auf mittlere und hohe Frequenzen konzentrieren. Ein Fehler, meint Prof. Dr. Helmut Fuchs, denn gerade hier sorgen wertvolle Informationen für die Verständlichkeit von Sprache. Prof. Fuchs plädiert dagegen für eine tiefe Frequenzen ausgedehnte Absorption. Dass es hierzu bereits marktreife Lösungen gibt, erläutert er in einem zweiteiligen Bericht. Im ersten Teil zeigt er scheinbar unlösbare akustische Probleme auf.Nr.
Transparenz löst ein Dilemma: Akustik und Raum. Tl.2
No full textS.32-35"Laute Räume" werden landläufig durch Absorptionsmaßnahmen bedämpft, die sich auf mittlere und hohe Frequenzen konzentrieren. Ein Fehler, meint Prof. Dr. Helmut Fuchs, denn gerade hier sorgen wertvolle Informationen für die Verständlichkeit von Sprache. Prof. Fuchs plädiert dagegen für eine auf tiefe Frequenzen ausgedehnte Absorption. Im zweiten Teil stellt er innovative Bauteile zur Erzeugung einer transparenten Raumakustik vor, die den Konflikt mit transparenter Architektur auflösen.Nr.
Kriminalitätsfurcht und ihre Ursachen
No full textKriminalitätsfurcht ist eine Größe, die oftmals (partei) politisches Handeln initiiert und begründet. Steigende Furcht vor Verbrechen führt häufig zu Forderungen an die Politik, etwas gegen die "überhandnehmende" Kriminalität zu tun. Im gleichen Atemzug werden schärfere Gesetze und härtere Sanktionen gefordert. Die kriminologische Forschung hingegen zeigt, dass es keinen bzw. allenfalls einen geringen Zusammenhang zwischen Verbrechensfurcht und tatsächlicher Kriminalitätsbelastung gibt. Obwohl das Konstrukt "Kriminalitätsfurcht" methodisch schwer zu fassen ist, kommen deutsche und internationale Studien zu diesem übereinstimmenden Ergebnis. Die von Helmut Kury und Joachim Obergfell-Fuchs vorgestellten Studien belegen, dass die individuelle Ausprägung von Verbrechensfurcht weitgehend unabhängig ist von der Kriminalitätsbelastung. Vielmehr wird sie beeinflusst von dem in den Medien dargestellten "Kriminalitätsbild", von der politischen "Großwetterlage", von verschiedenen demografischen Merkmalen der Bürger und Bürgerinnen (z.B. Geschlecht und Alter), von ihren Lebensbedingungen sowie von der Persönlichkeit des Einzelnen. Von daher scheint die Schaffung und Umsetzung kriminalpräventiver Maßnahmen vielversprechender zu sein als der Ruf nach unangemessenen Reaktionen des Staates und härteren Strafen für die Täter
Anmeldelse af Joachim Böger, Helmut Diekmann, Harmut Lenk & Caren Schröder: Suomi-saksa opiskelusanakirja ('Finsk-tysk studieordbok')
No full textAnmeldt værk:Joachim Böger, Helmut Diekmann, Harmut Lenk & Caren Schröder:Suomi-saksa opiskelusanakirja ('Finsk-tysk studieordbok'). Helsinki/Porvoo/Juva: WSOY 1999
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