GLORIA

GEOMAR Library Ocean Research Information Access

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Luminescence kinetic and association equilibria of lanthanide ions in aqueous solutions. II. Determination of the formation constant of Tb acetato complex by means of luminescence lifetime measurement (1985)
    Springer
    Journal of solution chemistry 14 (1985), S. 67-72 
    Details
    ISSN: 1572-8927
    Keywords: Terbium acetato complex ; ion association ; luminescence lifetime
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The association constant K of mono-acetato complex of Tb3+ has been determined at normal p and T conditions by measurement of its luminescence lifetime in aqueous solution containing increasing concentrations of acetate. Two experimental arrangements used for the measurement are described.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00646732
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Untersuchungen von Relaxationserscheinungen an Quecksilberatomen im metastabilen 63 P 2-Zustand mit einem Impulsverfahren (1968)
    Springer
    The European physical journal 212 (1968), S. 32-47 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The decay of rf signalsδm=±1 between the Zeeman sublevels of mercury atoms in the metastable 63 P 2 state was investigated by means of a sampling method. The density matrix of the state was expanded in terms of irreducible tensor operators. By solving the appropriate differential equations, we were able to show that the time constant of the decay obtained from the measurements is the relaxation time for the longitudinal component of the mean electric quadrupole moment (alignment) of the metastable atoms. The linewidths of the rf resonances reflect the relaxation rates of the transverse components however. From the decay time, the cross sectionσ 0=(1,80±0,11) · 10−14 cm2 for depolarizing collisions between metastable mercury atoms (even isotopes) and ground state atoms was derived. A comparison ofσ 0 with the value which was previously determined from the linewidths of rf resonances, indicates that the relaxation process in a weak magnetic field is essentially isotropic.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01379895
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Determination of theg j -factor in the72 P 3/2-state of133Cs by optical double resonance in a strong magnetic field (1972)
    Springer
    The European physical journal 253 (1972), S. 127-133 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The hfs in the 72 P 3/2-state of133Cs has been investigated by optical double resonance in a strong magnetic field. From the positions of the magnetic dipole transitions Δm j =± 1, Δm i =0 the magnetic hfs coupling con slanta (72 P 3/2)=16.591(25) MHz and theg j -factorg j (72 P 3/2)=1.33410(15) could be derived. Contrarily to recent measurements,g j agrees well with the value calculated from the Lande formula.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01379767
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Die Hyperfeinstruktur des angeregten 32P3/2-Zustandes von Natrium (1966)
    Springer
    The European physical journal 194 (1966), S. 270-279 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The hyperfine structure of the 32P3/2-state in the Na(I)-spektrum was investigated by optical double resonance. Three zero fieldrf-transitions (ΔF=±1, ΔmF=0) were detected and thus the unambiguous interpretation of therf-spectrum was made possible. From an analysis of therf-spectrum one obtains the magnetic hyperfine structure splitting constant a=(18.5 −0.2 +0.6 ) Mc/sec the electric quadrupole interaction constantb=(3.2±0.5) Mc/sec which yields an electric quadrupole moment Q(Na23)=(0.138±0.025)·1024cm2.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01571251
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Bildung von Pökelfarbstoff im Blut durch die Einwirkung von Natriumnitrit auf Hämoglobin (1971)
    Springer
    European food research and technology 147 (1971), S. 258-266 
    Details
    ISSN: 1438-2385
    Source: Springer Online Journal Archives 1860-2000
    Topics: Process Engineering, Biotechnology, Nutrition Technology
    Description / Table of Contents: Zusammenfassung Bei einem optimalen Zusatz von 150 mg Natriumnitrit zu 100 g Rinderblut konnten durch Erhitzen normalerweise nur etwa ein Drittel, im Höchstfall bis 50% des Hämoglobins in Pökelfarbstoff umgewandelt werden. Höhere Nitritmengen verursachen eine zunehmende Vergrünung unter Bildung von Verdiglobin. Durch Zusatz von Ascorbinsäure (400 mg je 100 g Blut) wird die Bildung von Pökelfarbstoff auf 100% gesteigert. Nitrat als Folgeprodukt der autokatalytischen Oxydation tritt unabhängig von der Höhe der Nitritzugabe im Verhältnis 0,5 −1 mol zu 1 mol Hemoglobin-Eisen auf. Für die nachfolgende Bildung des Stickoxid-Hämo-globinkomplexes war im günstigsten Fall nur 1 mol Nitrit pro mol NO-Hb erforderlich. Der NitrAverbrauch für Nebenreaktionen nahm mit steigender Nitritzufuhr stark zu. Die Schwankungen zwischen den Versuchen mit Blut verschiedener Tiere sind relativ hoch und größer als beim Fleisch.
    Notes: Summary Hemoglobin in beef blood is converted only to about 30% (max. 50%) to the curing pigment by adding 150 mg sodium nitrite to 100 g blood and heating. Raising of nitrite causes a green discoloration by formation of verdiglobin. The development of curing pigment is enhanced to 100% by addition of ascorbic acid (400 mg/100 g blood). Nitrate is formed by auto catalytic oxydation in the rate of 0,5 −1 mol to 1 mol hemoglobin-Fe and in the following step advantageously 1 mol NO-hemoglobin by I mol nitrite. Increasing addition of nitrite leads to a higher consumption due to side-reactions. The variations between the blood samples of different animals are relatively higher than in meat.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02078236
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Interleukin-6 in autoimmune diseases (1993)
    Springer
    Journal of molecular medicine 71 (1993), S. 664-671 
    Details
    ISSN: 1432-1440
    Keywords: Interleukin-6 ; Autoimmune diseases ; Rheumatoid arthritis ; Mesangioproliferative glomerulonephritis ; Systemic lupus erythematosus
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00184499
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Präoperative Kurzzeitstrahlentherapie in der chirurgischen Therapie des Rectumcarcinoms Langzeitergebnisse einer prospektiv-randomisierten Studie (1998)
    Springer
    Der Chirurg 69 (1998), S. 759-765 
    Details
    ISSN: 1433-0385
    Keywords: Key words: Colorectal carcinoma ; Operative procedure ; Preoperative radiotherapy ; Randomized trial ; Local recurrence. ; Schlüsselwörter: Colorectales Carcinom ; Operationsverfahren ; präoperative Strahlentherapie ; randomisierte Studie ; locoregionäres Rezidiv.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung. Zur Klärung der Frage, ob die präoperative Kurzzeitstrahlentherapie die lokale Tumorkontrolle und das Überleben von Patienten mit primär operablem Rectumcarcinom verbessern kann, wurde im Zeitraum von 1988 bis 1993 eine prospektiv randomisierte Studie durchgeführt. 93 Patienten mit histologisch gesichertem Rectumcarcinom wurden entweder primär operiert (n = 46) oder mit 5 × 3,3 Gy vorbestrahlt und unmittelbar danach operiert (n = 47). Bei entsprechender Indikation (T4, UICC-Stadium III, R1/R2-Resektion) erfolgte eine postoperative Strahlentherapie. Bezüglich des Operationsverfahrens (abdominoperineale Rectumamputation vs. anteriore Rectumresektion) ergab sich kein signifikanter Unterschied des 5-Jahres-Überlebens (p = 0,393). Bei R0-Resektionen (n = 77) fand sich bei vorbestrahlten Patienten im statistischen Trend eine bessere lokale Tumorkontrolle (p = 0,08). Die 5-Jahres-Überlebensrate wurde durch die Kurzzeitvorbestrahlung signifikant verbessert (p = 0,027). Die niedrig dosierte Vorbestrahlung ist keine unabhängige Variable bzgl. des Überlebens (p = 0,078) oder der lokalen Tumorkontrolle (p = 0,07). Entsprechend den Ergebnissen anderer Autoren ließ sich in der vorgestellten Arbeit die lokale Tumorkontrolle beim Rectumcarcinom durch die Kurzzeitvorbestrahlung verbessern, das 5-Jahres-Überleben ist in der vorbestrahlten Gruppe sogar statistisch signifikant verlängert.
    Notes: Summary. To ascertain whether preoperative short-term radiotherapy can improve local tumor control and the long-term survival of patients with operable rectal cancer, a prospective randomised trial was performed from 1988 to 1993. Ninety-three patients with rectal cancer were either directly treated with surgery (n = 46) or underwent preoperative radiotherapy with 5 × 3.3 Gy irradiation and operation within 48 h (n = 47). If indicated (T4, UICC stage III) patients also received postoperative irradiation. Comparison of the methods of operation (abdominoperineal amputation versus anterior resection) revealed no significant difference in 5-year survival rate (P = 0.393). Local control of R0-resected tumors was improved after preoperative irradiation (P = 0.08). The 5-year survival rate was significantly higher after preoperative short-term radiotherapy (P = 0.027). Preoperative radiotherapy is not an independent factor according to overall survival (P = 0.078) and local recurrence (P = 0.07). In agreement with the results of other authors the present study indicates improved local tumor control of rectal cancer after preoperative radiation therapy. The 5-year survival rate was significantly better after preoperative radiotherapy than after surgery alone.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001040050487
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    Phosphohexose isomerase in hypernephroma (1988)
    Springer
    Urological research 16 (1988), S. 345-349 
    Details
    ISSN: 1434-0879
    Keywords: Phosphohexose Isomerase ; Hypernephroma ; Serum and Tissue Activities ; Isozyme Pattern
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary In hypernephroma an overall diagnostic sensitivity of 72% and a specificity of 87% was found for the serum tumor marker phosphohexose isomerase (PHI). Both in early stage disease and in well differentiated tumors a sensitivity of about 60% was reached. In contrast the sensitivity of three other glycolytic enzymes tested was found to be less than 20%. Since the cancer induced elevation of PHI activity in the tumor was found to be comparable to those of the other test enzymes, elevated PHI serum activities cannot be attributed to overproportional PHI synthesis and unspecific cell-lysis. In 6 of 10 cases studied differences in the PHI isozyme pattern between the tumor and the normal tissue were found suggesting the occurence of cancer associated structural alterations of PHI.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00256040
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    Skeletal metastases from a pineoblastoma (1994)
    Springer
    European radiology 4 (1994), S. 584-586 
    Details
    ISSN: 1432-1084
    Keywords: Pineal body, neoplasms ; Bone neoplasms, secondary
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A case of histologically proven skeletal metastases from pineoblastoma is presented. The primary tumor was initial1y treated by surgery and radiotherapy. To the best of our knowledge this is the third reported case of skeletal metastases arising from such primary tumor.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00226836
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    Evidence for a respiration-modulated cholinergic action on the activity of medullary respiration-related neurons in the rabbit (1989)
    Springer
    Pflügers Archiv 415 (1989), S. 72-80 
    Details
    ISSN: 1432-2013
    Keywords: Respiration-related neurons ; Acetylcholine ; Muscarinic receptors ; Nicotinic receptors ; Phasic effects ; Phase-switching ; Rβ-neurons
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Effects of the iontophoretically administered cholinergic agonists acetylcholine, bethanechol and DMPP on the activity of medullary respiration-related neurons were examined in urethane-anaesthetized rabbits. Inhibitory effects prevailed over excitatory effects. Analysis of cholinergic effects by cycle-triggered averaging revealed three major types of neuronal responses: (i) constant alterations of spike-density throughout the whole period of activity (“constant effects”), (ii) effects increasing during the progression of the burst of discharge or effects restricted to a particular fraction of the burst (“phasic effects”) and (iii) effects which were characterized by an excitation during one respiratory phase and an inhibition during the other phase (“bi-phasic effects”). The latter type of effects was observed in phase-spanning respiration-related neurons. Phasic effects were mainly observed in inspiration-related neurons which were predominantly inhibited by stimulation of muscarinic receptors. Inspiratory Rβ-neurons in no case were phasically affected by cholinergic agents. The mean muscarinic inhibition of inspiration-related neurons increased with the progression of inspiration. The mean nicotinic inhibition of expiration-related neurons decreased with the progression of expiration. Results suggest that the efficacy of (i) a central inspiration terminating mechanism and (ii) the onset of discharge of expiratory neurons is modulated by acetylcholine.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00373143
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...