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  • Springer  (27)
  • American Meteorological Society (AMS)
  • 1985-1989  (23)
  • 1970-1974  (4)
  • 1935-1939
  • 1988  (23)
  • 1971  (4)
  • 1
    Digitale Medien
    Digitale Medien
    Thermogenic effects of thyrotrophin-releasing hormone and its analogues in the rat (1988)
    Springer
    Cellular and molecular life sciences 44 (1988), S. 40-42 
    Details
    ISSN: 1420-9071
    Schlagwort(e): TRH ; TRH analogues ; thermogenesis ; brown adipose tissue
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Summary Acute or chronic injection of RX 77368 (a TRH analogue; 1 mg/kg s.c.) stimulated oxygen consumption (VO2) and brown adipose tissue activity in the rat, and decreased weight gain Other TRH analogues (CG 3509, RGH 2202) and TRH itself also stimulated VO2. These thermogenic actions are probably mediated centrally by stimulation of sympathetic outflow to brown fat.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01960238
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Influence of sex on the urinary bilirubin excretion at increased free plasma haemoglobin levels in whole dogs and in isolated normothermic perfused dog kidneys (1971)
    Springer
    Cellular and molecular life sciences 27 (1971), S. 1264-1265 
    Details
    ISSN: 1420-9071
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Résumé Si le taux sanguin en hémoglobine libre dépasse les 50 mg/100 ml, l'excrétion rénale de la bilirubine est fortement augmentée chez le chien, tandis qu'elle reste faible chez la chienne. Les mêmes résultats sont obtenues par perfusion de reins isolés avec du sang hépariné ou défibriné.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02136676
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    Ethylene production and metabolism of 1-aminocyclopropane-1-carboxylic acid inChenopodium rubrum L. as influenced by photoperiodic flower induction (1988)
    Springer
    Journal of plant growth regulation 7 (1988), S. 241-247 
    Details
    ISSN: 1435-8107
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft
    Notizen: Abstract Chenopodium rubrum plants, induced to flower by three cycles of 12 h darkness and 12 h light, produced 42% less ethylene than vegetative plants kept under continuous light. Plants that had each dark cycle broken by 2 h light in the middle did not flower and produced almost as much ethylene as the vegetative plants. Shoots and roots of plants of all three experimental treatments had a similar content of 1-aminocyclopropane-1-carboxylic acid (ACC), the mean amounting to about 2 nmol · g−1 dry weight. Also the content of N-malonyl-ACC (MACC) was similar in shoots of all three treatments. MACC content in roots was shown to be much higher, especially in the treatments with three dark periods (about 85 nmol · g−1 dry weight). When labeled [2,3-14C] ACC was administered, the relative contents of ACC and MACC were very similar among all three treatments. The only process influenced by flower induction was ACC conversion to ethylene. Induced plants converted 36% less ACC than the vegetative ones. Plants subjected to night-break converted almost as much ACC to ethylene as vegetative plants. It is concluded that flower induction in the short-day plantChenopodium rubrum decreases ethylene production by decreasing their capability of converting ACC to ethylene.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02025266
    Standort Signatur Erwartet Verfügbarkeit
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  • 4
    Digitale Medien
    Digitale Medien
    Ladungszahl und Polymerisationsgrad des Metawolframations in wäßriger NaCl-haltiger Lösung nach Untersuchungen des Sedimentationsgleichgewichtes mit der Ultrazentrifuge (1971)
    Springer
    Colloid & polymer science 249 (1971), S. 1148-1154 
    Details
    ISSN: 1435-1536
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie , Maschinenbau
    Beschreibung / Inhaltsverzeichnis: Summary The chargez of the meta-tungstate ion in the ternary system Na6[H2W12O40]-NaCl-H2O is determined by ultracentrifugation experiments, evaluating the experimental data: 1. according to the limiting value ofLamm by eytrapolating the apparent molecular weight to zero-concentration, 2. according to the procedure ofJohnson, Kraus andScatchard. The discrepancy of the results ¦z¦=6 versus ¦z¦=2,85 is resolved by giving the proof that the latter value has no physical significance. For the molecular weight the first method gives the exact value, the second furnishes a very satisfying approximation.
    Notizen: Zusammenfassung Die Ladungszahlz des Metawolframations in dem ternären System Na6[H2W12O40]-NaCl-H2O wird nach zwei verschiedenen Verfahren durch Untersuchung des Sedimentations—Diffusionsgieichgewichtes mit der Ultrazentrifuge bestimmt: 1. Mit Hilfe der Lammschen Grenzbeziehung durch Extrapolation der scheinbaren Molmasse auf die Konzentration Null und 2. nach der Methode vonJohnson, Kraus undScatchard. Die Ergebnisse sind ¦z¦=6 bzw. ¦z¦=2,85. Es wird gezeigt, daß dem nach dem Verfahren vonJohnson, Kraus undScatchard erhaltenen Wert ¦z¦=2,85 keine physikalische Realitat zukommt.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01556986
    Standort Signatur Erwartet Verfügbarkeit
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  • 5
    Digitale Medien
    Digitale Medien
    Five new bogidiellid Amphipoda from Spain — the first freshwater records in the Iberian Peninsula (1988)
    Springer
    Hydrobiologia 164 (1988), S. 75-95 
    Details
    ISSN: 1573-5117
    Schlagwort(e): Amphipoda ; Bogidiella ; Medigidiella ; Spain ; freshwater
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract Five new species of the amphipod genus Bogidiella are described from fresh groundwaters in Spain. No freshwater Bogidiellidae were known previously from the Iberian peninsula.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00014351
    Standort Signatur Erwartet Verfügbarkeit
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  • 6
    Digitale Medien
    Digitale Medien
    Copepods associated with reef corals: a comparison between the Atlantic and the Pacific (1988)
    Springer
    Hydrobiologia 167-168 (1988), S. 545-547 
    Details
    ISSN: 1573-5117
    Schlagwort(e): Copepoda ; endoassociates ; corals ; biogeography ; tropical Atlantic ; Pacific
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract Endoparasitic copepods are very numerous in Indo-West Pacific corals. In West Indian corals they were thought to be absent, but recent studies have shown that a varied endoparasitic copepod fauna exists as well. Striking is the taxonomic composition of the coral-inhabiting copepods: In the Indo-West Pacific Lichomolgidae and Xarifiidae are the dominant families, both are absent in the West Indies. On the other hand, Corallovexiidae and Asterocheridae dominate in the West Indies; the former family is absent and the latter is apparently rare and not very diversified in the Indo-West Pacific.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00026350
    Standort Signatur Erwartet Verfügbarkeit
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  • 7
    Digitale Medien
    Digitale Medien
    Stygofauna of the Canary Islands, 6 A new Rhipidogammarus (Crustacea, Amphipoda) from Tenerife: first record of the genus outside the Mediterranean region and its biogeographic implications (1988)
    Springer
    Hydrobiologia 169 (1988), S. 279-292 
    Details
    ISSN: 1573-5117
    Schlagwort(e): Canary Islands ; groundwater Amphipoda ; Rhipidogammarus ; biogeography ; geological origin
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract The discovery of a new species ofRhipidogammarus, Rh. nivariae n. sp., in water supply shafts of Tenerife (Canary Islands), presents an interesting biogeographic problem. Up to now, members of the genus were known exclusively from stygohabitats in the peri-Mediterranean belt. Its sister-genus is found in very shallow waters of the Mediterranean, and on morphological grounds the genus seems to have got adapted only fairly recently to continental hypogean waters. The occurrence of a member ofRhipidogammarus on an oceanic island like Tenerife can be explained by one of the following two scenarios: (1) Tenerife is a fragment of the African plate, or (2) the island's volcanic outcrops arose from a very shallow submarine bank and drifted later into deeper waters.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00007551
    Standort Signatur Erwartet Verfügbarkeit
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  • 8
    Digitale Medien
    Digitale Medien
    Soil nitrogen mineralization in a coastal fynbos succession (1988)
    Springer
    Plant and soil 106 (1988), S. 295-298 
    Details
    ISSN: 1573-5036
    Schlagwort(e): fynbos ; fire ; mineralization ; nitrification ; succession
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft
    Notizen: Abstract Patterns of net nitrogen mineralization and nitrification in 0–7.5 cm deep mineral soils of different stages (seral ages 1, 6 and 20 years) of a post-fire coastal fynbos succession were assayed using laboratory andin situ incubations. No evidence of increasing allelopathic inhibition of nitrification with successional development was found as NO3−N was the predominant product at all seral stages and the NO3−N∶NH4−N ratio remained constant. Rather the results of field incubations of soils beneathProtea repens stands of different successional ages showed that increased mineralization and nitrification appeared to be associated with increased soil total N content rather than with successional age. Further, the incubation of soilsin situ during the dry summer months showed that NO3−N production appears to be closely related to temperature and soil moisture content, both of which are variables that vary throughout succession due to the changing structure of the vegetation.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02371229
    Standort Signatur Erwartet Verfügbarkeit
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  • 9
    Digitale Medien
    Digitale Medien
    Preface (1988)
    Springer
    The European physical journal 38 (1988), S. 1-1 
    Details
    ISSN: 1434-6052
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01574508
    Standort Signatur Erwartet Verfügbarkeit
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  • 10
    Digitale Medien
    Digitale Medien
    A comparative study of respirable particulate microenvironmental concentrations and personal exposures (1988)
    Springer
    Environmental monitoring and assessment 10 (1988), S. 105-122 
    Details
    ISSN: 1573-2959
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Energietechnik
    Notizen: Abstract Personal monitoring (PM) for respirable suspended particulate matter (RSP) of thirty subjects was performed as part of an air pollution health effects study conducted in Houston, Texas. Parallel RSP measurements were performed in the study subjects' homes and two fixed site monitoring stations. The participants' daytime activities were independently recorded by study techicians. These data were used to characterize RSP concentrations in each microenvironment visited by the participants. Four estimates of daytime exposure to RSP were calculated based on two different microenvironmental models, and home and fixed site mean daytime RSP concentrations. These estimates were compared to mean daytime personal exposure from PM. Hourly estimates of exposure were calculated from a microenvironmental model and mean hourly home RSP concentrations and compared to hourly PM data. The results of the study indicate that, as in the case of NO2, it is important to characterize indoor microenvironmental RSP concentrations according to location, sources, and concurrent activities, both qualitatively and quantitatively. Stratification of concentrations according to sources present and self-reported activity can lead to misclassification of exposures. For RSP and, probably, other pollutants with indoor sources and with short exposure integration times, adequate measures of exposure can only be obtained with very detailed and complex microenvironmental models or comprehensive personal monitoring.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00401776
    Standort Signatur Erwartet Verfügbarkeit
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