17,572 research outputs found
Als der Hochwohlehrwürdige und Hochwohlgelahrte Herr, Herr J. C. Fuchs, Wohlverdienter Lehrer des Evangelii bey der Gemeine Jesu Christi zu Grossen-Germersleben, Sich nach göttlicher Fügung mit der Wohledlen, Viel- Ehr und Tugendbegabten Frau, Frau E. C. Wefern, geb. Posin, ehelich verband, sollten, nachdem diese Vebindung am 4ten August dieses Jahrs durch priesterlichen Segen versiegelt wurde ... ihre kindliche Ergebenheit bezeugen, Dero gehorsamste Söhne J. C. Fuchs, der G. G. Beflissener, J. L. Fuchs, B. R. Befl. C. F. Fuchs, der G. G. Beflissener
No full textHochzeitsgedicht auf J. L. Fuchs, Pfarrer zu Grossen-Germersleben und E. L. Wefer, geb. Pose, 4. Aug. 1748Vorlageform der Veröffentlichungsangabe: "Halle, gedruckt bey Johann Justinus Gebauer. 1748.
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
De historia stirpium commentarii insignes
No full textDoor den Hoochgheleerden Doctoor in Medicijnen Leonhaert Fuchs ; Met drij Tafelen oft Registers ...Erscheinungsjahr aufgrund Vorrede auf frühestens 1543 datiertMit Druckermarken (Titelblatt, letzte Seite), Porträt von L. Fuchs, ZierinitialenOriginaltitel: De historia stirpiu
Franz Eugen L. Fuchs /
No full textA six page biography of the German lawyer Franz Eugen L. Fuchs, who was a lifelong functionary of Centralverein and who was deported to Auschwitz in July 1942.Lawyer, died 1942Processed for digitizationdigitize
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
Plankton community properties determined by nutrients and size-selective feeding
No full textThe potential impacts of climate change on marine planktonic ecosystems remain difficult to predict. Climate forcing can alter nutrient availability and predator community composition, and here we show that these shifts may dramatically alter plankton trophic structure, size distributions and biomass. We modeled phytoplankton and zooplankton as a highly resolved size spectrum with size-dependent nutrient uptake and predation and analyzed the model both as a size spectrum and as a food web. Model results identified 2 distinct regimes defined by the average zooplankton feeding preferences. Regime I communities, where planktonic predators are specialists or large relative to prey, had low omnivory, many top predators, low connectance and relatively flat size spectra. Regime II communities, where predators are generalists or small relative to prey, had a high degree of omnivory, no top predators, high connectance and steep size spectra. Model ecosystems with generalist predators had lower size diversity, smaller plankton and gappier size distributions than ecosystems with specialist predators. Nutrient availability had little influence on trophic structure but strongly impacted size structure and biomass. Most surprisingly, phytoplankton biomass sometimes decreased with added nutrients if predators were small relative to prey, implying that both predators and nutrients mediate shifts between bottom-up and top-down control. Based on our synthesized estimates of size-selective feeding parameters, we infer that size and trophic structure should be strongly affected by abundances of generalist, bloom-forming taxa such as salps and jellyfish, many of which are responsive to ocean temperature. Size-selective feeding fundamentally affects community structure and is a likely mechanism of change in planktonic ecosystems where community composition varies with temperature.Article accompanied by supplement (13 p.): Plankton community properties determined by nutrients and size-selective feedingPeer reviewe
Acanthoderes (Scythropopsis) virescens Fuchs 1962
No full textAcanthoderes (Scythropopsis) virescens (Fuchs, 1962) transfer Fig. 1 Acanthoderes (Psapharochrus) virescens Fuchs, 1962: 323. Psapharochrus virescens; Monné, 2005: 214 (catalogue). The flattened tibiae and the antennae shorter than the body in both sexes are the most remarkable characters of the subgenus Scythropopsis Thomson, 1864. The transfer is proposed based upon examination of the photograph of the female paratype (CHSV) and two specimens from MNRJ. Acanthoderes (Psapharochrus) virescens is very similar in colour and structure to Acanthoderes (Scythropopsis) albitarsis Laporte, 1840, largely distributed in east and south Brazil. Specimens examined. PERU, Huánuco: Rio Huallaga, female, I. 1985 (L. Peña) (MNRJ). Junin: Chanchamayo, female (MNRJ). Geographical distribution. Peru. 1, Acanthoderes (Scythropopsis) virescens (Fuchs), paratype female; 2, Eupromerella griseofasciata (Fuchs), holotype male; 3, Acanthoderes malleri Fuchs, holotype male = Hedypathes curvatocostatus Aurivillius; 4, Acanthoderes (Psapharochrus) minuta Fuchs, holotype male = Melzerus difficilis (Melzer); 5, Oreodera flavopunctata Fuchs, holotype female; 6, Oreodera hassenteufeli (Fuchs), holotype male.Published as part of Monné, Marcela L. & Monné, Miguel A., 2006, Notes on Acanthoderini (Coleoptera, Cerambycidae, Lamiinae) described by Ernst Fuchs, now in the Herbert Schmid Collection, Vienna, Austria, pp. 37-47 in Zootaxa 1365 on pages 38-39, DOI: 10.5281/zenodo.27364
Biophysical Constraints on Optimal Patch Lengths for Settlement of a Reef-Building Bivalve
No full textReef-building species form discrete patches atop soft sediments, and reef restoration often involves depositing solid material as a substrate for larval settlement and growth. There have been few theoretical efforts to optimize the physical characteristics of a restored reef patch to achieve high recruitment rates. The delivery of competent larvae to a reef patch is influenced by larval behavior and by physical habitat characteristics such as substrate roughness, patch length, current speed, and water depth. We used a spatial model, the ‘‘hitting-distance’’ model, to identify habitat characteristics that will jointly maximize both the settlement probability and the density of recruits on an oyster reef (Crassostrea virginica). Modeled larval behaviors were based on laboratory observations and included turbulence-induced diving, turbulenceinduced passive sinking, and neutral buoyancy. Profiles of currents and turbulence were based on velocity profiles measured in coastal Virginia over four different substrates: natural oyster reefs, mud, and deposited oyster and whelk shell. Settlement probabilities were higher on larger patches, whereas average settler densities were higher on smaller patches. Larvae settled most successfully and had the smallest optimal patch length when diving over rough substrates in shallow water. Water depth was the greatest source of variability, followed by larval behavior, substrate roughness, and tidal current speed. This result suggests that the best way to maximize settlement on restored reefs is to construct patches of optimal length for the water depth, whereas substrate type is less important than expected. Although physical patch characteristics are easy to measure, uncertainty about larval behavior remains an obstacle for predicting settlement patterns. The mechanistic approach presented here could be combined with a spatially explicit metapopulation model to optimize the arrangement of reef patches in an estuary or region for greater sustainability of restored habitats.Peer reviewe
Un accident : chansonnette créée par Madame Graindor [illustration G. Fuchs (Gustave Fuchs (1856-19..)]
No full textUn accident : chansonnette créée par Madame Graindor ; [illustration signée] G. Fuchs [Gustave Fuchs (1856-19..)] ; tampon (magasin Orléans) ; paroles O. Pradels (Octave Pradels) ; musique G. Michiels [Gustave Michiels] ; Aux cloches de Corneville, L. Bathlot éditeur, 39 rue de l'Echiquier, Paris [intérieur : mention artiste id. ; sans date, cotage LB3244, datation par cotage 1882 (Devriès et Lesure) ; verso vierge] ; incipit : "Devant me rendre chez ma tante"
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