109,202 research outputs found
H. Wegener, L'écriture sur le front droite et renversée
No full textHenri Victor. H. Wegener, L'écriture sur le front droite et renversée. In: L'année psychologique. 1897 vol. 4. pp. 622-623
Biogeochemical processes and microbial diversity of the Gullfaks and Tommeliten methane seeps (Northern North Sea).
No full textFluid flow related seafloor structures and gas seeps were detected in the North Sea in the 1970s and 1980s by acoustic sub-bottom profiling and oil rig surveys. A variety of features like pockmarks, gas vents and authigenic carbonate cements were found to be associated with sites of oil and gas exploration, indicating a link between these surface structures and the underlying, deep hydrocarbon reservoirs. In this study we performed acoustic surveys and videographic observation at Gullfaks, Holene Trench, Tommeliten, Witch's Hole and the giant pockmarks of the UK Block 15/25, to investigate the occurrence and distribution of cold seep ecosystems in the Northern North Sea. The most active gas seep sites, i.e. Gullfaks and Tommeliten, were investigated in detail. At both sites, gas bubbles escaped continuously from small holes in the seabed to the water column, reaching the upper mixed surface layer. At Gullfaks a gas emitting, flat area of 0.1 km(2) of sandy seabed covered by filamentous sulfur-oxidizing bacteria was detected. At Tommeliten, we found a patchy distribution of small bacterial mats indicating sites of gas seepage. Below the patches the seafloor consisted of sand from which gas emissions were observed. At both sites, the anaerobic oxidation of methane (AOM) coupled to sulfate reduction (SR) was the major source of sulfide. Molecular analyses targeting specific lipid biomarkers and 16S rRNA gene sequences identified an active microbial community dominated by sulfur-oxidizing and sulfate-reducing bacteria (SRB) as well as methanotrophic bacteria and archaea. Stable carbon isotope values of specific, microbial fatty acids and alcohols from both sites were highly depleted in the heavy isotope C-13, indicating that the microbial community incorporates methane or its metabolites. The microbial community composition of both shallow seeps shows high similarities to the deep water seeps associated with gas hydrates such as Hydrate Ridge or the Eel River ba
The Flinders sensitive line rat model of depression: 25 years and still producing
No full textApproximately 25 years have passed since the first publication suggesting the Flinders sensitive line (FSL) rat as an animal model of depression. At least 6 years of research on these rats was completed before that seminal paper, and there has been a steady stream of publications (130+) over the years. The present review will focus on several issues not previously covered in earlier reviews, summarize the several lines of ongoing investigations, and propose a novel mechanism that accounts for a number of previously unexplained observations. A key observation in the FSL rat relates to the antidepressant (AD)-like effects of known and putative antidepressants. The FSL rat typically exhibits an AD-like effect in behavioral tests for AD-like activity following chronic (14 days) treatment, although some studies have found AD-like effects after fewer days of treatment. In other observations, exaggerated swim test immobility in the FSL rat has been found to have a maternal influence, as shown by cross-fostering studies and observations of maternal behavior; the implications of this finding are still to be determined. Ongoing or recently completed studies have been performed in the laboratories of Marko Diksic of Canada, Aleksander Mathé of Sweden, Gregers Wegener of Denmark, Brian Harvey of South Africa, Paul Pilowsky and Rod Irvine of Australia, and Gal Yadid of Israel. Jennifer Loftis of Portland, Oregon, and Lynette Daws of San Antonio, Texas, have been working with the FSL rats in the United States. A puzzling feature of the FSL rat is its sensitivity to multiple chemicals, and its greater sensitivity to a variety of drugs with different mechanisms of action. It has been recently shown that each of these drugs feeds through G protein–coupled receptors to potassium-gated channels. Thus, an abnormality in the potassium channel could underlie the depressed-like behavior of the FSL rats.This research was supported by The Danish Medical Research Council (Grant 11-107897), the Lundbeck Foundation, and Aarhus
University Research Foundation (AU-IDEAS) (to G.W.)
SCHOPPER Fest
No full textChairman : V. SOERGEL. - The political role of scientific projects : Europe and beyond by Sir H. BONDI. (end of the talk) - Particle Physics : from table top to factory by Prof. D. WEGENER. - Big science and the man in the street by Nigel CALDER
Rad-Rundfahrten in Deutschland : Führer für Radfahrer ; beschreibender Text mit Karten und Ill
No full textvon E. Wegener u. J. GrüssErschienen: H. 1
Analyse d'ouvrage de H. SCHWARZBACH : "Wegener, le Père de la Dérivedes Continents" (traduit de l'allemand par E.BUFFETAUT)
No full textInternational audienceRecension de H. SCHWARZBACH : "Wegener, le Père de la Dérivedes Continents" (traduit de l'allemand par E.BUFFETAUT
Wegener\u27s granulomatosis mimicking a sternal abscess.
No full textBone destruction as a manifestation of Wegener\u27s granulomatosis has been reported, but these cases were limited to the head and face. We present a case in which a sternal abscess was the initial manifestation of Wegener\u27s granulomatosis. We believe this is the first reported case of bone destruction due to Wegener\u27s occurring in a location other than the head and face
H. Wegener: Das Weber'sche Gesetz und seine Bedeutung für die Biologie. Naturwissensch. Wochenschr. Bd. XII, Nr. 34, S. 397-401. 1897
No full textH. WEGENER: DAS WEBER'SCHE GESETZ UND SEINE BEDEUTUNG FÜR DIE BIOLOGIE. NATURWISSENSCH. WOCHENSCHR. BD. XII, NR. 34, S. 397-401. 1897
Zeitschrift für Psychologie und Physiologie der Sinnesorgane (-)
Zeitschrift für Psychologie und Physiologie der Sinnesorgane (17) (a0006)
H. Wegener: Das Weber'sche Gesetz und seine Bedeutung für die Biologie. Naturwissensch. Wochenschr. Bd. XII, Nr. 34, S. 397-401. 1897 (17) (p0277
H. Wegener: Die psychischen Fähigkeiten der Thiere. Zeitschr. für pädag. Psychol. u. Pathol. 2 (5), 383-398; (6), 457-480. 1900
No full textH. WEGENER: DIE PSYCHISCHEN FÄHIGKEITEN DER THIERE. ZEITSCHR. FÜR PÄDAG. PSYCHOL. U. PATHOL. 2 (5), 383-398; (6), 457-480. 1900
Zeitschrift für Psychologie und Physiologie der Sinnesorgane (-)
Zeitschrift für Psychologie und Physiologie der Sinnesorgane (27) (a0001)
H. Wegener: Die psychischen Fähigkeiten der Thiere. Zeitschr. für pädag. Psychol. u. Pathol. 2 (5), 383-398; (6), 457-480. 1900 (27) (p0289
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