GLORIA

GEOMAR Library Ocean Research Information Access

X
Sie haben 0 gespeicherte Treffer.
Markieren Sie die Treffer und klicken Sie auf "Zur Merkliste hinzufügen", um sie in dieser Liste zu speichern.
feed icon rss

Ihre E-Mail wurde erfolgreich gesendet. Bitte prüfen Sie Ihren Maileingang.

Leider ist ein Fehler beim E-Mail-Versand aufgetreten. Bitte versuchen Sie es erneut.

Vorgang fortführen?

Exportieren
Filter
  • Springer  (9)
  • American Heart Association (AHA)
  • Nature Publishing Group (NPG)
  • Oxford University Press
  • PANGAEA
  • 2015-2019
  • 1990-1994  (9)
  • 1975-1979
  • 1970-1974
  • 2013
  • 1990  (9)
Publikationsart
Schlagwörter
Verlag/Herausgeber
Erscheinungszeitraum
  • 2015-2019
  • 1990-1994  (9)
  • 1975-1979
  • 1970-1974
  • 2010-2014  (43)
Jahr
  • 1
    Digitale Medien
    Digitale Medien
    Buchbesprechungen (1990)
    Springer
    Journal of molecular medicine 68 (1990), S. 984-984 
    Details
    ISSN: 1432-1440
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01646659
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 2
    Digitale Medien
    Digitale Medien
    Erfahrungen mit der Anwendung eines intravasalen 6 French Endosonographiekatheters in vivo (1990)
    Springer
    Journal of molecular medicine 68 (1990), S. 570-575 
    Details
    ISSN: 1432-1440
    Schlagwort(e): Intravascular Ultrasound ; Atherosclerosis
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary Further progress in intraluminal sonography has led to the development of a 6 French ultrasound imaging catheter. This report demonstrates in vivo results using this new technique in a swine. Intraluminal echographic images obtained from the aorta and iliac arteries were of good quality. Artifacts such as image distortion were related to the 20 Mhz mechanically rotating tip motion and caused a loss of image quality. Atherosclerotic lesions could be visualized. The characteristics of the echo image of an atherosclerotic lesion related to the composition of corresponding histological sections of the lesion. Intraluminal sonography may develop into a new diagnostic tool, further enhancing progress in atherosclerosis research and improving the evaluation of coronary arteries and perivascular structures. Combined use with balloon angioplasty might also improve invasive therapeutic procedures.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01667150
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 3
    Digitale Medien
    Digitale Medien
    Serum immunoreactive erythropoietin of children in health and disease (1990)
    Springer
    European journal of pediatrics 149 (1990), S. 459-464 
    Details
    ISSN: 1432-1076
    Schlagwort(e): Newborn ; Erythropoiesis ; Anaemia ; Congenital heart disease ; Renal failure ; Arterial oxygen content
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract Serum immunoreactive erythropoietin (siEPO) was determined in cord serum from neonates (n=97, gestational age 36–43 weeks), in healthy children from birth to adolescence (n=260) and in children with haematological (n=30), renal (n=10) and congenital heart diseases (n=70). In healthy children siEPO levels decreased after birth (geometric mean cord siEPO 35.6 mU/ml with 95% range of 17–56 mU/ml in eutrophic, nondistressed fetuses) and reached lowest values during the first 2 months (geometric mean siEPO 11.5 mU/ml). Thereafter siEPO levels increased slightly and were constant between 2 months and adolescence. The geometric mean siEPO for healthy children after birth was 18.8 mU/ml with 95% range of 7–47 mU/ml. These estimates were not significantly different from normal adult values. In newborns with fetal distress (n=15) cord siEPO was significantly elevated (geometric mean 63.0 mU/ml;P〈0.001). In children with haematological disease, siEPO and Hb concentration were inversely correlated (log siEPO (mU/ml)=4.1−0.20×Hb (g/dl);r=−0.62;P〈0.0005). This relationship was significantly different in children with chronic renal failure (log siEPO (mU/ml)=0.67+0.035×Hb (g/dl);r=0.50;P=0.1). In children with heart disease the geometric mean siEPO was 19.2 mU/ml with 95% range 8–65 mU/ml for cyanotic (SaO2〈94%) and 17.7 mU/ml with 95% range of 12–36 mU/ml for acyanotic patients. In this group siEPO values were inversely correlated to the arterial oxygen content (log siEPO (mU/ml) =1.61−2.04×oxygen content (l/l);r=−0.28;P〈0.02).
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01959395
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 4
    Digitale Medien
    Digitale Medien
    The Marfan syndrome —analysis of growth and cardiovascular manifestation (1990)
    Springer
    European journal of pediatrics 149 (1990), S. 452-456 
    Details
    ISSN: 1432-1076
    Schlagwort(e): Marfan syndrome ; Cardiovascular manifestation ; Height and weight per centiles
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract Forty-eight children and adolescents (mean age 10.5 years, range 1.25–18 years) with clinical evidence of Marfan syndrome were studies. Height and weight percentiles were established. Cardiac dimensions and morphology were studied by M-mode and 2D-echocardiography. At diagnosis left atrial and left ventricular end-diastolic diameter and left ventricular posterior wall thickness were within normal limits except in a few adolescent patients. Interventricular septum was thickened in about 20% and aortic diameter increased in 56% of the patients. An additional 13% of patients developed aortic dilation during the study period. At diagnosis regression analysis revealed a significant (P〈0.05) correlation of the aortic diameter, septal thickness and the posterior left ventricular wall thickness and body surface area. Follow up studies of 19 patients allowed documentation of the development of aortic root dilation.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01959393
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 5
    Digitale Medien
    Digitale Medien
    The bacterial symbiont from the hydrothermal vent tubewormRiftia pachyptila is a sulfide specialist (1990)
    Springer
    Marine biology 106 (1990), S. 273-283 
    Details
    ISSN: 1432-1793
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract We have investigated the metabolic adaptations of the chemolithotrophic bacterial symbionts ofRiftia pachyptila. Specimens of the tubeworm were collected by submersible from depths of 2600 m at 13°N on the East Pacific Rise in 1987, and 2450 m at the Galápagos Rift in 1988. Isolated bacteria utilize sulfide, but not thiosulfate or sulfite, as their sole reduced-sulfur energy source. The bacteria rapidly oxidize a wide range of sulfide concentrations (5µM to 2 mM), with maximal respiration rates at concentrations 〉1 mM, and unlike many sulfur-oxidizing bacteria, show no inhibition in oxygen consumption at sulfide concentrations up to 2 mM. Incubations of freshly homogenized trophosome tissue or isolated bacteria with sodium [35S] sulfide and subsequent analysis of sulfur products by high-performance liquid chromatography and flow-through scintillation counting showed that sulfide disappeared almost completely within 1 min. Both soluble and insoluble products of sulfide oxidation were produced. The soluble fraction contained sulfate and polysulfides, with no thiosulfate produced. However, the majority of the radioactivity was in the water-insoluble fraction, mostly as elemental sulfur. Whole-worm experiments under pressure showed a rapid removal of35S-sulfide from the incubation water, with sulfide, sulfate, and polysulfides appearing in the blood within 4 h. There was no utilization of thiosulfate by the whole worms, freshly homogenized trophosome tissue, or isolated bacteria.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01314811
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 6
    Digitale Medien
    Digitale Medien
    pH-Dependent metabolism of thiosulfate and sulfur globules in the chemolithotrophic marine bacterium Thiomicrospira crunogena (1990)
    Springer
    Archives of microbiology 154 (1990), S. 231-238 
    Details
    ISSN: 1432-072X
    Schlagwort(e): Chemolithotroph ; Thiomicrospira ; Thiosulfate ; Sulfur globules ; Sulfur-oxidizer ; Hydrothermal vent
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract Respiring cells of the chemolithotrophic bacterium Thiomicrospira crunogena produced sulfur globules from the sulfane sulfur of thiosulfate below pH 7, and consumed the globules above pH 7. The switch in metabolism was immediate and reversible upon titration of the culture. The consumed sulfur globules remained in a membrane-bound form and were not oxidized unless the medium was depleted of thiosulfate. Sulfur globule production but not uptake was blocked by azide. Anoxia, thiol-binding agents, and inhibitors of protein synthesis blocked globule uptake. Transitory accumulations of sulfite and polythionates appeared to be reaction products of thiosulfate and sulfur globules. A model depicting the pH sensitivity and biochemistry of sulfur globule production and consumption is proposed.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00248960
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 7
    Digitale Medien
    Digitale Medien
    Analytical examination of mortars from the medieval derelict village Holzheim (1990)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 338 (1990), S. 133-137 
    Details
    ISSN: 1618-2650
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Summary The elemental composition of medieval mortars from the derelict village Holzheim and from Fritzlar was determined using energy-dispersive X-ray fluorescence analysis with radionuclide excitation. By comparison with sands and limes from different sites in Chattia/FRG the origin of the raw materials could be ascertained.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00321874
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 8
    Digitale Medien
    Digitale Medien
    Oxidative detoxification of sulfide by mitochondria of the California killifish Fundulus parvipinnis and the speckled sanddab Citharichthys sitgmaeus (1990)
    Springer
    Journal of comparative physiology 160 (1990), S. 519-527 
    Details
    ISSN: 1432-136X
    Schlagwort(e): Mitochondrial sulfide detoxification ; Fundulus parvipinnis
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Summary Earlier whole-animal experiments have shown that the California killifish (Fundulus parvipinnis) from tidal marshes is highly tolerant to sulfide while the speckled sanddab (Citharichtys stigmaeus) from the open coast is intolerant to sulfide. In the present paper, we demonstrate that the liver mitochondria of the California killifish detoxify sulfide by oxidizing it to thiosulfate and produce ATP in the process. Sulfide oxidation is obligately and stoichiometrically linked to mitochondrial electron transport to oxygen. Concentrations up to 20 μM sulfide stimulate mitochondrial respiration while 50 μM sulfide causes half-inhibition. Sulfide oxidation by mitochondria is adversely affected at pH〈7.4. ATP production is maximal at 10 μM sulfide. The finding of sulfide oxidation coupled to ATP production by killifish mitochondria is unprecedented among vertebrates. In comparison, mitochondria of the specked sanddab oxidize sulfide at a much lower rate. This is the first demonstration of biochemical adaptation to sulfide among coastal marine fishes.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00258979
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 9
    Digitale Medien
    Digitale Medien
    Nuclear spectroscopic quantities under influences of covalency (1990)
    Springer
    Hyperfine interactions 61 (1990), S. 1185-1188 
    Details
    ISSN: 1572-9540
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract On the basis of Mössbauer isomer shift data, nuclear quadrupole interactions and NMR1J(13C−119Sn) spin-spin coupling constants, the problem of the nonadditivity of the isomer shifts and unexpected quadrupole interactions in tin organic compounds SnX4−nRn (X-halide, R-org. lig.) with the degree of substitution n has been treated by means of pseudopotential HF SCF calculations supplemented by efficient methods for comprehending core reorganizations and nucleus near electronic charge distributions. The nonadditivity of the isomer shifts and the progression of the nuclear quadrupole interactions has been explained by the evident momentum separated electronic reorganization. The clearly proved relation between s electron densities and higher orbital imbalances brings the isomer shift in relation to the valence part of the electric field gradient (EFG). An interrelation between isomer shifts and NMR spin-spin coupling constants has been deduced.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02407598
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
Schließen ⊗
Diese Webseite nutzt Cookies und das Analyse-Tool Matomo. Weitere Informationen finden Sie hier...