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
    Enthalpy of mixing of hydrated melts. II. Evidence for an endothermic step in the chlorocomplex formation of zinc (1986)
    Springer
    Journal of solution chemistry 15 (1986), S. 717-725 
    Details
    ISSN: 1572-8927
    Keywords: Calorimetry ; mixing enthalpy ; concentrated aqueous solutions ; ZnCl2, LiCl, LiNO3 ; hydrated melts ; complex formation ; hydration
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The enthalpies of mixing measured for the systems x(ZnCl2+RH2O)-(1−x)(LiCl+RH2O) are reported. In contrast to the exothermic effects for R=4, the mixing processes at R=6 are considerably endothermic. For R=5, the sign of ΔH M depends on the composition. The mixing enthalpies of these hydrated melts are controlled by an endothermic step in the chlorocomplex formation of zinc and the exothermic hydration of lithium cations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00646713
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Enthalpy of crystallization of lithium chloride from aqueous solution at 25°C (1986)
    Springer
    Journal of solution chemistry 15 (1986), S. 269-282 
    Details
    ISSN: 1572-8927
    Keywords: Activity coefficients ; enthalpy of crystallization ; enthalpy of dissolution ; enthalpy of formation ; lithium chloride ; solubility
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The enthalpies of crystallization of LiCl and LiCl·H2O from aqueous solutions at 25°C are reported as measured by a calorimetric method and derived from the previously published concentration dependence of the enthalpy of solution data. The results are compared with those obtained from the concentration dependence of activity coefficients and from the temperature dependence of solubilities.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00646695
    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 comparative study of perineal ultrasound scanning and urethrocystography in patients with genuine stress incontinence (1988)
    Springer
    Archives of gynecology and obstetrics 244 (1988), S. 39-45 
    Details
    ISSN: 1432-0711
    Keywords: Genuine stress incontinence ; Perineal scan ; Urethrocystography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Perineal scanning using linear array ultrasound was used as an alternative to radiologic urethrocystography in the investigation of female urinary incontinence. The posterior urethro-vesical angle (β) and the angle of inclination (α) of 30 patients (age: 48±10.2 years) with genuine stress incontinence were measured by both procedures. In all cases the radiologic and ultrasound findings correlated well. Perineal scan provides similar information to that obtained by the radiographic procedure without exposure to X-rays. In contrast to urethrocystography perineal scan is fast, inexpensive, readily accessible and more acceptable to the patient.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00931401
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Histochemical demonstration of peptidases in the human kidney (1985)
    Springer
    Histochemistry and cell biology 83 (1985), S. 337-341 
    Details
    ISSN: 1432-119X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The localization of several peptidases in the human kidney was investigated histochemically. The membrane-bound peptidases, aminopeptidase A (APA), aminopeptidase M, γ-glutamyltransferase (γ-GT) and dipeptidylpeptidase IV, were mainly demonstrable in the brush border of the proximal tubule. In addition, APA was found in the glomeruli, while γ-GT was found in the basal labyrinth of the proximal tubule. The lysosomal peptidases, dipeptidylpeptidase I and cathepsin B, were most strongly concentrated in the different-sized lysosomes of the proximal tubule, but they were also found in the small lysosomes of the distal tubule. Dipeptidylpeptidase II showed only a weak reaction in lysosomes of the proximal tubule. It is concluded that, in comparison with other previously studied species, the human kidney has a well-developed equipment with membrane-bound and lysosomal peptidases.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00684380
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Histochemical demonstration of sodium-dependent glutamate uptake in brain tissues by glutamate dehydrogenase reaction (1986)
    Springer
    Experimental brain research 62 (1986), S. 659-662 
    Details
    ISSN: 1432-1106
    Keywords: Glutamate uptake ; Glutamate dehy drogenase ; Histochemistry ; Hippocampus ; Cerebellum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Using a special tetrazolium salt technique, a striking correlation was observed between Na+ concentration of the incubation medium and the formation of formazan catalyzed by glutamate dehydrogenase (GDH) in glutaniatergic neuropil areas of the hippocampal formation, cerebellum, and other brain regions. Na+ concentrations of 130–150 mmol/l caused maximal formazan production. The GDH catalyzed sodium-dependent increase in formazan production is suggested to be a consequence of the sodium dependence of glutamate uptake in glutaniatergic brain structures supplying the enzyme with substrate.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00236047
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    High-affinity uptake of L-[3H]glutamate and D-[3H]aspartate during postnatal development of the hippocampal formation: a quantitative autoradiographic study (1988)
    Springer
    Experimental brain research 70 (1988), S. 50-54 
    Details
    ISSN: 1432-1106
    Keywords: Glutamate ; Aspartate ; High-affinity uptake ; Postnatal development ; Hippocampal formation ; Quantitative autoradiography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Quantitative autoradiography was used to determine the topographical and time patterns of L-[3H]glutamate and D-[3H]aspartate high-affinity uptake system in the hippocampal formation of the rat during postnatal development. Extended control experiments were performed to verify the specificity of labelling. For short incubation periods of 3–10 min, the data demonstrated a conspicuously low rate of glutamate accumulation in the hippocampal formation of newborn animals and a marked increase in labelling of hippocampal neuropil areas during the first weeks of postnatal life. Our autoradiographic data on developmental increase in glutamate high-affinity uptake levels are consistent, in terms of time and topography, in many ways with other parameters of maturation of glutamatergic and/or aspartatergic structures in the hippocampal formation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00271846
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Effect of hematin on the activities of nitrite reductase and catalase in lactobacilli (1988)
    Springer
    Archives of microbiology 149 (1988), S. 220-224 
    Details
    ISSN: 1432-072X
    Keywords: Nitrite reductase ; Catalase ; Hematin activation ; Lactobacillus plantarum ; L. curvatus ; L. sake ; Starter cultures
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The effect of the addition of hematin on the activities of nitrite reductase and catalase was studied with cell suspensions of strains of lactobacillus species. In cells of Lactobacillus plantarum grown under aerobic or anaerobic conditions nitrite reductase was present. This activity was not exhibited by cells of L. curvatus and only rarely by L. sake. In addition, catalase activity was detected in aerobically grown cells only, with all strains of L. plantarum and L. sake; again L. curvatus was devoid of this activity. Ammonia was formed as the main product of nitrite reduction by L. plantarum. With lactate as the electron donor, the end products of carbohydrate catabolism were carbon dioxide, acetoin and acetate. The activities of nitrite reductase and catalase in strains of lactobacillus species may be used for optimizing the quality of starter cultures applied for the production of raw sausages.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00422008
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    Respiration of Sepia officinalis during embryonic and early juvenile life (1985)
    Springer
    Marine biology 90 (1985), S. 35-39 
    Details
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Adult Sepia officinalis L. were caught in June 1984, in the coastal waters of Wimereux (France). Deposition of the eggs took place in the seawater aquaria of the “Station Marine”. The oxygen consumption of S. officinalis was measured during embryonic and juvenile development. Aerobic metabolism occurs as soon as the early embryonic Stage 21. Oxygen diffuses through the initially thick egg shell; the oxygen level in the perivitelline liquid reaches a maximal value just before hatching (116.7±6.9 mm Hg). Hatchings display only a slight increase in oxygen consumption compared to embryos in the last stage of development. Respiration experiments with 40 d old juveniles showed that oxygen consumption increases with temperature, but is not affected by photoperiod. Experiments under increasing hypoxia revealed that S. officinalis juveniles are good regulators and maintain a constant oxygen consumption in the range of 4 to 7 mg O2l-1. Juveniles successfully recover from an hypoxic stress of 2 mg O2l-1 maintained for 1 h. This suggests that the respiratory pigments (pre-hemocyanins) of 40 d-old juveniles have a high oxygen affinity and/or that these juveniles have the ability to adapt to anaerobic conditions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00428212
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    Concluding Remarks on ESTAC 4 (1988)
    Springer
    Journal of thermal analysis and calorimetry 33 (1988), S. 1249-1252 
    Details
    ISSN: 1572-8943
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01912759
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    Regulation of respiration during juvenile development of Sepia officinalis (Mollusca: Cephalopoda) (1988)
    Springer
    Marine biology 97 (1988), S. 365-371 
    Details
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract A culture of juvenile Sepia officinalis L. was kept during summer 1985 in the aquaria of the “Station Marine”, Wimereux, France. During the first four months of juvenile development, oxygen consumption under increasing hypoxia was measured with a closed respirometer. The experiments revealed a high regulatory capacity of juvenile S. officinalis. The critical oxygen concentrations were calculated and their ontogenetical evolution was studied. The critical oxygen concentration increased with increasing development. A linear relationship emerged between the critical oxygen concentration and the logarithm of the wet weight [COc (mg O2 l-1)=-0.393+0.893×log10(W w )]. The decreasing regulatory capacity of growing S. officinalis is most probably related to adaptations to a changing ecological environment during development. Another possibility is a physiological change, most probably related to the shift from embryonic to adult hemocyanin.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00397767
    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...