20,079 research outputs found
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
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.
Katalog der Freiherrlich Fuchs-Nordhoff'schen Bildersammlung
No full textKATALOG DER FREIHERRLICH FUCHS-NORDHOFF'SCHEN BILDERSAMMLUNG
Katalog der Freiherrlich Fuchs-Nordhoff'schen Bildersammlung ([I])
Cover ( - )
Title page ([I])
Verzeichnis der Bilder (III)
Vorbemerkungen (1)
Beschreibung der Bilder (13)
XIV. Jahrhundert (15)
XV. Jahrhundert (19)
XVI. Jahrhundert (25)
XVII. Jahrhundert (41)
XVIII. Jahrhundert (61)
XIX. Jahrhundert (75)
Abbildungen ([1]r)
Madonna mit Kind ([1]r)
Heilige Familie ([2]r)
Christus im Tempel die Händler vertreibend ([3]r)
Madonna das Kind anbetend ([4]r)
Madonna mit Kind ([5]r)
Lucretia ([6]r)
Diana mit badenden Nymphen ([7]r)
Aphroditens Rückkehr ([8]r)
Bathseba ([9]r)
Zephyr und Psyche ([10]r)
Susanna ([11]r)
Mann, junge Frau und Putti mit Büchse ([12]r)
Schlafendes Christkind ([13]r)
Aphrodite erscheint dem jagenden Adonis ([14]r)
Diana und schlafender Endymion ([15]r)
Der Zinsgroschen ([16]r)
Die Ehebrecherin ([17]r)
Heilige Familie auf der Flucht ([18]r)
Beichtende ([19]r)
Die drei Grazien dem Amor die Waffen raubend ([20]r)
Chloris von Zephyr geküsst ([21]r
Quantified data and R-Scripts for Figures in Fuchs & Eickholt, J.Cell Sci., 2022
No full textprocessing and analysis of live-cell imaging data of axon branch precursor type, location and lifetime
Analysis scripts for Fuchs & Eickholt, 'Precursor types predict the stability of neuronal branches' https://www.biorxiv.org/content/10.1101/2021.04.23.441127v1
now published in: https://doi.org/10.1242/jcs.258983 </p
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
Situational Barriers Scale in Physical Exercise
No full textDie Skala SBB bildet das Ausmaß ab, in dem sich eine Person durch zeitlich variable situative Bedingungen ("Barrieren") von ihrer Verhaltensabsicht abbringen lässt, Sport zu treiben. Krämer und Fuchs (2010) unterscheiden zwei Typen von Barrieren gegen das Sporttreiben: negative Konsequenzerwartungen und situative Barrieren. Mit 13 Items werden innere Zustände und umweltseitige Gegebenheiten, die eine Person vom Sporttreiben abhalten können, auf den Skalen (1) Psychosoziale Barrieren, (2) Körperliche Barrieren und (3) Gesamtskala "Sportbezogene situative Barrieren" beschrieben. Reliabilität: Die interne Konsistenz lag bei Cronbachs Alpha = .81 (Gesamtskala) bzw. Alpha = .74 bis Alpha = .82 (Subskalen). Validität: Es wurden hypothesenkonform moderate bzw. geringe Zusammenhänge der Subskalen mit einem Maß für negative Konsequenzerwartungen des Sporttreibens nachgewiesen. "Psychosoziale Barrieren" war zudem in mittlerer Höhe mit sportbezogenen Selbstwirksamkeitserwartungen (r = -.34), der Stärke der Intention, Sport zu treiben (r = -.30) sowie dem Umfang sportlicher Aktivitäten in den letzten vier Wochen (r = -.27) korreliert. Situative Barrieren eignen sich zur Vorhersage des wöchentlichen Sportpensums (prädiktiven Validität), wenn zuvor die Selbstwirksamkeitsüberzeugungen kontrolliert wurden. Negative Konsequenzerwartungen und die Höhe der Selbstwirksamkeit zeigen einen prädiktiven Vorhersagewert auf.The Situational Barriers Scale in Physical Exercise represents the extent to which a person can be dissuaded from their intention to engage in sport by situational conditions that vary over time ("barriers"). Krämer and Fuchs (2010) distinguish between two types of barriers to sports: negative expectations of consequences and situational barriers. Thirteen items are used to describe inner states and environmental conditions that can prevent a person from doing sports on the scales of (1) psychosocial barriers, (2) physical barriers, and (3) total scale "Sports-related situational barriers". Reliability: The internal consistency was at Cronbach's Alpha = .81 (full scale) or Alpha = .74 to Alpha = .82 (subscales). Validity: In accordance with the hypothesis, moderate or low correlations of the subscales with a measure for negative expectations of consequences of sports activities were demonstrated. "Psychosocial barriers" were also correlated at a medium level with sport-related self-efficacy expectations (r = -.34), the strength of the intention to engage in sport (r = -.30) and the extent of sporting activities in the last four weeks (r = -.27). Situational barriers are suitable for predicting the weekly sports workload (predictive validity), if self-efficacy beliefs have been previously controlled. Negative consequence expectations and the level of self-efficacy indicate a predictive value.reviewedpublishedVersio
Situational Barriers Scale in Physical Exercise
No full textDie Skala SBB bildet das Ausmaß ab, in dem sich eine Person durch zeitlich variable situative Bedingungen ("Barrieren") von ihrer Verhaltensabsicht abbringen lässt, Sport zu treiben. Krämer und Fuchs (2010) unterscheiden zwei Typen von Barrieren gegen das Sporttreiben: negative Konsequenzerwartungen und situative Barrieren. Mit 13 Items werden innere Zustände und umweltseitige Gegebenheiten, die eine Person vom Sporttreiben abhalten können, auf den Skalen (1) Psychosoziale Barrieren, (2) Körperliche Barrieren und (3) Gesamtskala "Sportbezogene situative Barrieren" beschrieben. Reliabilität: Die interne Konsistenz lag bei Cronbachs Alpha = .81 (Gesamtskala) bzw. Alpha = .74 bis Alpha = .82 (Subskalen). Validität: Es wurden hypothesenkonform moderate bzw. geringe Zusammenhänge der Subskalen mit einem Maß für negative Konsequenzerwartungen des Sporttreibens nachgewiesen. "Psychosoziale Barrieren" war zudem in mittlerer Höhe mit sportbezogenen Selbstwirksamkeitserwartungen (r = -.34), der Stärke der Intention, Sport zu treiben (r = -.30) sowie dem Umfang sportlicher Aktivitäten in den letzten vier Wochen (r = -.27) korreliert. Situative Barrieren eignen sich zur Vorhersage des wöchentlichen Sportpensums (prädiktiven Validität), wenn zuvor die Selbstwirksamkeitsüberzeugungen kontrolliert wurden. Negative Konsequenzerwartungen und die Höhe der Selbstwirksamkeit zeigen einen prädiktiven Vorhersagewert auf.The Situational Barriers Scale in Physical Exercise represents the extent to which a person can be dissuaded from their intention to engage in sport by situational conditions that vary over time ("barriers"). Krämer and Fuchs (2010) distinguish between two types of barriers to sports: negative expectations of consequences and situational barriers. Thirteen items are used to describe inner states and environmental conditions that can prevent a person from doing sports on the scales of (1) psychosocial barriers, (2) physical barriers, and (3) total scale "Sports-related situational barriers". Reliability: The internal consistency was at Cronbach's Alpha = .81 (full scale) or Alpha = .74 to Alpha = .82 (subscales). Validity: In accordance with the hypothesis, moderate or low correlations of the subscales with a measure for negative expectations of consequences of sports activities were demonstrated. "Psychosocial barriers" were also correlated at a medium level with sport-related self-efficacy expectations (r = -.34), the strength of the intention to engage in sport (r = -.30) and the extent of sporting activities in the last four weeks (r = -.27). Situational barriers are suitable for predicting the weekly sports workload (predictive validity), if self-efficacy beliefs have been previously controlled. Negative consequence expectations and the level of self-efficacy indicate a predictive value.reviewedpublishedVersio
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
Victor R. Fuchs. — How We Live
No full textRichardot Sylviane. Victor R. Fuchs. — How We Live. In: Revue Française d'Etudes Américaines, N°24-25, mai 1985. L'impérialisme culturel américain ? pp. 325-326
Victor R. Fuchs. — The Health Economy
No full textHeffer Jean. Victor R. Fuchs. — The Health Economy. In: Revue Française d'Etudes Américaines, N°32, avril 1987. American Potpourri. p. 338
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