Library

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
    P-Funktionalisierte diferriophosphonium salze des typs [{CpFe(CO)2}2PPhR]+X- und [{CpFe(CO)2 }2PClR]+X-
    Amsterdam : Elsevier
    Journal of Organometallic Chemistry 475 (1994), S. 211-221 
    Details
    ISSN: 0022-328X
    Keywords: Carbonyl ; Iron ; Oxidative addition ; Phosphorus ; Trimethyisilyl
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0022-328X(94)84024-5
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Metamorphism and metallogeny in the Eastern Alps (1999)
    Springer
    Mineralium deposita 34 (1999), S. 614-629 
    Details
    ISSN: 1432-1866
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract The two Alpine orogenic phases of the Eastern Alps, in the Cretaceous and in the Tertiary, were both accompanied by the formation of mineral deposits. However, subduction-related magmatic belts as well as the typical “Andean” ore deposits are missing. Therefore, the role of metamorphism in East Alpine metallogeny was tentatively explored for more than 60 y, although for a long time without tangible results. Microthermometric, geochemical and isotopic investigations of fluid inclusions from selected Alpine mineral deposits presented allow a preliminary confirmation of the involvement of metamorphic fluids in their origin. Deposits which were formed immediately after the first, Cretaceous orogeny, were produced at high pressures by fluids of very high salinity and high density, and with an isotopic composition of the water falling into the metamorphic field. These fluids are best understood as products of metamorphic de-volatilization of rocks of the subducted South Pennine domain. In contrast to this, the deposits formed after the second, Tertiary orogeny, originated at relatively low pressures from fluids with an appreciable content of CO2 and of low to moderate salinities. Isotopic compositions of this carbon indicate a deep crustal or even mantle source for CO2, while the water is isotopically more heterogeneous and may have mixed sources, both surficial and metamorphic. Tectonic control of these mineralizations is late-orogenic trans-tensional faulting, which exposed hot metamorphic rocks to fluid convection along brittle structures. These deposits conform best to the model of metamorphogenic metallogenesis by retrograde leaching, although ponded metamorphic fluids and mantle volatiles may also have been involved.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001260050223
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    A new genetic model for the North African metasomatic siderite deposits (1986)
    Springer
    Mineralium deposita 21 (1986), S. 228-233 
    Details
    ISSN: 1432-1866
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Description / Table of Contents: Résumé Basée sur les notes publiées sur l'évolution diagénétique des diapirs évaporitiques, et sur les données géologiques et les résultats préliminaires concernant la géochimie et les inclusions fluides, un nouveau modèle génétique est présenté pour les minerais sidéritiques métasomatiques du Maghreb. Dans l'ensemble, des saumures chaudes, issues des évaporites enfouies, et/ou des eaux derivées du gypse et d'autres sediments, semblent avoir réagi avec leurs roches hôtes durant la diagenèse précoce, devenant ainsi acides et réductrices. Ceci entraine la mise en solution et le transport du fer et d'autres cations. Ces saumures sont canalisées vers les parties apicales des diapirs, où elles déposent leurs solutés par processus métasomatiques dans les fractures du toit carbonaté. D'autres modes de dépôt, aussi bien par chute de température et de pression que par mélange avec les eaux de subsurface, sont marqués par des filons occasionels minéralisés en fer et très rarement en barytine et fluorine. Le modèle est tout à fait comparable à ce publié récemment sur l'origine des minéralisations à Pb-Zn de la même région. Il est évident que les deux groupes de minéralisation partagent des caractéristiques métallogéniques non seulement spatiotemporelles mais aussi causales.
    Notes: Abstract Based on published accounts of the diagenetic evolution of evaporite diapirs and geological, preliminary geochemical, and fluid inclusion data a new genetic model is presented for the North African metasomatic siderite deposits. Essentially, hot brines from the buried evaporites, gypsum-derived and/or other formation waters are thought to have reacted with their host rocks during early diagenesis becoming acid and reducing, thus allowing solution and transport of Fe and other cations. They were channeled toward the apical parts of diapirs where they deposited their solute by metasomatic processes in fractured roof carbonates. Other depositional modes by pressure and temperature drop as well as by mixing with near-surface waters are indicated by the occasional vein-type iron ores and very minor barite and fluorite. The model is quite comparable to recently published thoughts on the origin of the Pb-Zn deposits of the same area. Obviously, both groups of deposits share not only temporal and spatial but also causal metallogenic characteristics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00199805
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    3-palmitoyl-7-oxy-coumarin—a new lipoid pH indicator (1978)
    Springer
    Naturwissenschaften 65 (1978), S. 652-653 
    Details
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00401910
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Influenza specific antibodies in the female genital tract of mice after oral administration of live influenza vaccine (1987)
    Springer
    Archives of gynecology and obstetrics 240 (1987), S. 153-157 
    Details
    ISSN: 1432-0711
    Keywords: Urogenital tract ; Immunization ; Secretory antibodies ; Influenza vaccine
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary In order to investigate the possible stimulation of antibodies in the genital tract by immunization female NMRI-mice were given orally a live influenca vaccine (A/PR/8/34, HlNl) on two occasions which were 10 days apart. Subsequently, virus specific IgA antibodies measured by an enzyme immunoassay in homogenates of urinary bladder, uterus and vagina and also in uterine washings. Specific IgA antibodies were not detectable in the sera of immunized mice. The high IgA titer in uterine washings, and in the homogenates suggests enhancement by vaccine of IgA antibody production in the genital tract.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00207710
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    On an implementation of standard bases and syzygies in SINGULAR (1996)
    Springer
    Applicable algebra in engineering, communication and computing 7 (1996), S. 235-249 
    Details
    ISSN: 1432-0622
    Keywords: Standard bases ; Syzygies ; Computer algebra system ; Highest corner ; EcartMethod
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science , Mathematics , Technology
    Notes: Abstract We describe an implementation of a general standard basis algorithm, valid for any monomial ordering compatible with the natural semigroup structure. We concentrate on new strategies which have proved useful, in particular in the non-wellordering case. Moreover, we describe the first implementation of Schreyer's method to compute syzygies and compare it with other, more classical methods. Comparisons of the computing time of several examples in the system SINGULAR give hints as to which strategies should be used in different classes of examples.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01190332
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    On an Implementation of Standard Bases and Syzygies in SINGULAR (1996)
    Springer
    Applicable algebra in engineering, communication and computing 7 (1996), S. 235-249 
    Details
    ISSN: 1432-0622
    Keywords: Key words Standard bases ; Syzygies ; Computer algebra system ; Highest corner ; EcartMethod.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science , Mathematics , Technology
    Notes: Abstract  We describe an implementation of a general standard basis algorithm, valid for any monomial ordering compatible with the natural semigroup structure. We concentrate on new strategies which have proved useful, in particular in the non-wellordering case. Moreover, we describe the first implementation of Schreyer’s method to compute syzygies and compare it with other, more classical methods. Comparisons of the computing time of several examples in the system SINGULAR give hints as to which strategies should be used in different classes of examples.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01190332
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    Fluorescence polarization in planar lipid membranes (1980)
    Springer
    European biophysics journal 6 (1980), S. 95-95 
    Details
    ISSN: 1432-1017
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00647567
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    Untersuchungen zur armverhältnisbestimmung am spätreplizierenden X-Chromosom des Menschen (1971)
    Springer
    Human genetics 〈Berlin〉 12 (1971), S. 302-315 
    Details
    ISSN: 1432-1203
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Description / Table of Contents: Zusammenfassung Das Armverhältnis des spätreplizierenden X-Chromosoms wurde bei 5 Kontrollpersonen, 5 47,XXY Klinefelter-Patienten, 1 46/47,XX/XXX-Mosaik und 1 45/46,X/XX-Mosaik bestimmt. Die statistische Analyse der erhaltenen Werte zeigt, daß die Methode der Armverhältnisbestimmung durch Messung der Armlängen an vergrößert projizierten Chromosomen als geeignet erscheint. Die Mittelwerte der Armverhältnisse der 5 Kontroll-personen können nicht als gleich angesehen werden. Der gesamte Mittelwert der Armverhältnisse ist signifikant kleiner (1,487) für die Klinefelter-Patienten als für die Kontrollpersonen (1,546). Die Werte für die Mosaike XX/XXX (1,557) und XO/XX (1,528) liegen im Bereich der Normalwerte.
    Notes: Summary The arm ratio of the late replicating X-chromosome was determined in 5 control persons, 5 47,XXY Klinefelter patients, 1 46/47,XX/XXX mosaic and 1 45/46,X/XX mosaic. The analysis of the values obtained shows that the method of defining the arm ratio by means of measuring arm lengths on drawings of highly magnified projected chromosomes proves practicable. The mean values of the arm ratios of the 5 control persons cannot be valued as equal. The total mean value of the arm ratios is significantly smaller (1.487) for the Klinefelter patients than for the normal control persons (1.546). The values of the mosaics XX/XXX (1.557) and XO/XX (1.528) lie in the range of the control values.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00278050
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    Metabolite des Glykolysecyclus und des Adenylsäure-Phosphokreatin-Systems im Warmblüterherzen bei künstlichem Herzstillstand und nach Wiederaufnahme der Coronardurchblutung in Abhängigkeit von den Methoden zur Stillstandseinleitung (1963)
    Springer
    Pflügers Archiv 278 (1963), S. 110-110 
    Details
    ISSN: 1432-2013
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00672642
    Library Location Call Number Volume/Issue/Year 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...