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
    Boron ion implantation in p-type Hg0.8Cd0.2Te (1990)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 68 (1990), S. 5564-5566 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Differential Hall measurements at 77 K were done on 150-keV boron implanted p-type mercury-cadmium-telluride (HgCdTe). n+ layers formed as a result of implantation with various doses were very sharp and thicknesses of the n+ layers were found to depend on boron dose. The sheet carrier concentration tends to saturate above the dose 1×1013 cm−2.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.347016
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Interaction of bacterial acidic polysaccharide with cationic dyes (1993)
    Springer
    Colloid & polymer science 271 (1993), S. 1042-1048 
    Details
    ISSN: 1435-1536
    Keywords: Bacterial polymer ; cationic dye ; dye-polymer interaction ; metachromasy ; chromotropic property ; thermodynamic parameters
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The interaction of acidic capsular polysaccharide isolated fromKlebsiella K26 with cationic dyes pinacyanol chloride, acridine orange and phenosafranin has been studied by spectral measurements. The polymer induces metachromasy in pinacyanol chloride dye, indicating a blue shift in the visibly absorption spectrum of the dye from 600 to 500 nm. The stoichiometry of polymer/dye in the metachromatic compound, thermodynamic parameters of interaction, and effects of different cosolvents on the stability of the complex have been studied. Spectrophotometric and spectrofluorometric properties of the interaction between the polymer and all three dyes are presented. The chromotropic property of the polymer has been established.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00659293
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    The effects of chemical reactions on the dispersion of air pollutants over area sources (1990)
    Springer
    Earth, moon and planets 48 (1990), S. 99-111 
    Details
    ISSN: 1573-0794
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract An analytical study has been performed to examine the characteristics of two-dimensional steady-state advective-diffusive transport of air pollutants emitted from ground-based area sources. The solutions for the concentration of air pollutants are obtained by Integral and Variational Imbedding methods taking chemical reaction process into account. A comparative study of concentration is displayed graphically, followed by a quantitative discussion.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00054094
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Purification and characterization of a low molecular weight zinc binding protein from human placenta (1994)
    Springer
    Molecular and cellular biochemistry 136 (1994), S. 77-83 
    Details
    ISSN: 1573-4919
    Keywords: zinc ; metallothionein ; placenta
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Notes: Abstract A low molecular weight, native zinc binding, cytosolic protein (LMZP) has been isolated, purified and characterized from human normal term placenta. Gel filtration of heat treated placental cytosol after sequential acetone precipitation (80% ppt) revealed a major zinc binding protein in the range of low molecular weight. This partially purified zinc binding fraction was further fractionated on DEAE-Sephadex A-25. The zinc was eluted in one of the three peak fractions. Further, the purity of zinc binding protein was confirmed on fast protein liquid chromatography (FPLC). The purified placental LMZP was homogenous on SDS-polyacrylamide gel electrophoresis with a single band. Ultraviolet (UV) spectrum of LMZP showed an absorption maximum at 257 nm which disappeared at pH 2. Molecular weight of LMZP as determined by gel chromatography, SDS-polyacrylamide gel electrophoresis and amino acid analysis was 6 kDa. It was calculated that 1 g atom of zinc was bound to 1 mole of the LMZP. Unlike in classical metallothionein, the amino acid composition of placental LMZP revealed the presence of aromatic amino acids, lower content of cysteine and higher content of histidine, glutamic acid and aspartic acid (10, 9 and 5 residues/mole, respectively).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00931608
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Chronobiology of urinary citrate excretion amongst stone-formers and healthy males from North Western India (1991)
    Springer
    Urological research 19 (1991), S. 203-206 
    Details
    ISSN: 1434-0879
    Keywords: Urinary calculi ; Citrate ; Circadian rhythm
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Urinary citrate excretion was estimated colorimetrically from urine samples collected every 3 h for 24 h from 25 healthy adult males (non-stone formers; mean age 39±7 years) and 25 male patients suffering from calcium nephrolithiasis (stone formers; mean age 41±6 years). The 24 h citrate excretion was 2.47±0.65 mmol in non-stone formers and 2.02±0.71 mmol in stone formers. This difference was not significant. However, cosinor rhythmometry revealed a significant circadian rhythmicity in urinary citrate excretion in the healthy males which was absent in the stone formers; the amplitude was 0.06 mmol in non-stone formers and 0.017 mmol in stone formers. The acrophase was located at 14:25 h in non-stone formers and at 23:30 h in stone formers.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00303752
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Effect of combined supplementation of magnesium oxide and pyridoxine in calcium-oxalate stone formers (1994)
    Springer
    Urological research 22 (1994), S. 161-165 
    Details
    ISSN: 1434-0879
    Keywords: Magnesium oxide ; Pyridoxine ; Calcium oxalate ; Urolithiasis ; Therapeutic effect
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A combined supplement of magnesium oxide (300 mg/day) and pyridoxine·HCl (10 mg/day) was given p.o. to 16 recurrent calcium oxalate (CaOx) stone formers, and its therapeutic efficacy was biochemically evaluated by measuring various parameters of blood (Na, K, Mg, urea, creatinine, calcium, phosphate, uric acid, alanine transaminase, aspartate transaminase and alkaline phosphatase) and urine (volume, pH, creatinine, Na, K, Mg, uric acid, calcium, phosphate, oxalate and citrate) at 0, 30, 60, 90 and 120 days of treatment. Serum Mg significantly (P〈0.01) increased after 30 days of treatment and remained constant thereafter while other blood parameters were unaltered. Combined treatment led to a significant increase in the urinary excretion of Mg and citrate over pretreatment values while oxalate excretion showed a gradual and significant decline during the therapy. The results confirmed the efficacy of MgO-pyridoxine supplementation in terms of changes in urinary excretion of lithogenic and inhibitory components, leading to a significant (P〈0.01) decrease in CaOx risk index from 0.09±0.04 at 0 day to 0.05±0.02 after 120 days of treatment.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00571844
    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...