Search Results - (Author, Cooperation:N. Butt)

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  1. 1
    Staff View
    Publication Date:
    2018-05-26
    Publisher:
    The American Society for Biochemistry and Molecular Biology (ASBMB)
    Print ISSN:
    0021-9258
    Electronic ISSN:
    1083-351X
    Topics:
    Biology
    Chemistry and Pharmacology
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  2. 2
  3. 3
    N. Butt ; H. L. Beyer ; J. R. Bennett ; D. Biggs ; R. Maggini ; M. Mills ; A. R. Renwick ; L. M. Seabrook ; H. P. Possingham
    American Association for the Advancement of Science (AAAS)
    Published 2013
    Staff View
    Publication Date:
    2013-10-26
    Publisher:
    American Association for the Advancement of Science (AAAS)
    Print ISSN:
    0036-8075
    Electronic ISSN:
    1095-9203
    Topics:
    Biology
    Chemistry and Pharmacology
    Computer Science
    Medicine
    Natural Sciences in General
    Physics
    Keywords:
    *Biodiversity ; *Conservation of Natural Resources ; *Fossil Fuels ; Risk
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  4. 4
    Staff View
    ISSN:
    0162-0134
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Biology
    Chemistry and Pharmacology
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  5. 5
    Staff View
    ISSN:
    0162-0134
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Biology
    Chemistry and Pharmacology
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  6. 6
    Collier, H. O. J. ; Butt, N. M. ; Saeed, S. A.

    Oxford, UK : Blackwell Publishing Ltd
    Published 1982
    Staff View
    ISSN:
    1471-4159
    Source:
    Blackwell Publishing Journal Backfiles 1879-2005
    Topics:
    Medicine
    Notes:
    Abstract: Peptide extracts of rat brain powerfully inhibited the cyclic AMP phosphodiesterase activity of rat brain homogenate. Similar extracts of ox brain showed comparable although less potent activity. Preliminary investigation of the physicochemical properties of brain extracts indicated that the rat brain extract contained an active peptide of low molecular weight (about 1400), whereas ox brain contained two such peptides (about 1400 and 900). These studies indicate that endogenous oligopeptides that inhibit cyclic AMP phosphodiesterase are present in brain. Experiments on several pure peptides known to be present in the CNS showed that the majority were inactive against brain phosphodiesterase, but ACTH(1.24), somatostatin, substance P and Lys8-vasopressin, in descending order of potency, were active. To help distinguish the peptides found in rat and ox brain extracts from known peptides, preliminary analyses of amino acid composition were performed. These suggested that the peptides found in brain extracts were distinct from known peptides having the ability to inhibit cyclic AMP phosphodiesterase.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  7. 7
    Staff View
    ISSN:
    1476-4687
    Source:
    Nature Archives 1869 - 2009
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Notes:
    [Auszug] Mammalian serum and plasma contain an endogenous inhibitor of prostaglandin synthetase (EIPS). Human plasma fractions rich in EIPS show anti-inflammatory activity in vivo. In rats, glucocorticoids raise EIPS activity of plasma and serum. These findings suggest the existence of a natural mechanism ...
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  8. 8
    Butt, N. M. ; Bashir, J. ; Nasir Khan, M. ; Willis, B. T. M.
    Springer
    Published 1994
    Staff View
    ISSN:
    1573-4811
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  9. 9
    Butt, N. M. ; Bashir, J. ; Khan, M. Nasir
    Springer
    Published 1993
    Staff View
    ISSN:
    1573-4803
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes:
    Abstract The recommended value of the Debye-Waller thermal parameter, B, for 22 cubic elements, based on experimental measurements using X-ray, neutron, and γ-ray diffraction as well as high-voltage electron diffraction, has recently been published. Using these data, interesting correlations can be made of the parameter B with thermal, mechanical and defect properties of these cubic elements. These results show an evident relationship between the microscopic and bulk properties.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  10. 10
    Staff View
    ISSN:
    1573-4803
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes:
    Abstract A glass-ceramic of nominal composition Bi1.5Pb0.4Sb0.1Sr2Ca2Cu3Ox was prepared by the melt-quenching method. The subsequent heat treatment of the sample at 860±5°C showedT c(zero) at 94 K. Exposure of the sample for 4 days in air improved itsT c(zero) to 140 K. In another similarly heat-treated sample, a two-step transition in the p-Tcurve at 140 K and at 1 1 1 K, was observed. The superconducting transition appeared to be of a percolative nature.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  11. 11
    Raza, S. M. ; Butt, N. Z.
    Springer
    Published 1984
    Staff View
    ISSN:
    1573-4811
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  12. 12
    Arshed, M. ; Butt, N. M. ; Siddique, M. ; Anwar-ul-Islam, M.
    Springer
    Published 1992
    Staff View
    ISSN:
    1588-2780
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Chemistry and Pharmacology
    Energy, Environment Protection, Nuclear Power Engineering
    Notes:
    Abstract Mössbauer study of the rust formed on SS-304 exposed to sea water for about 30 d indicates that ferrihydrite and β-FeOOH are formed as corrosion products, the cause of corrosion being the presence of chloride ions in sea water. Ferrihydrite is found to exhibit two doublets at 300 K while at 80 K it exhibits a doublet and a sextet. This is contrary to earlier studies in which it was reported that at 80 K ferrihydrite is fully magnetically ordered and exhibits a sextet only.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  13. 13
    Staff View
    ISSN:
    1588-2780
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Chemistry and Pharmacology
    Energy, Environment Protection, Nuclear Power Engineering
    Notes:
    Abstract The Mössbauer technique has been used to study the oxidation of alloy 1.4306S (SS-304L) at 1200°C exposed in atmospheres of air and steam, for, 1, 6, 24, 100 and 400 hours. By oxidation in air the major products are α-FE2O3, γ-FE2O3, and Fe3O4 while, during oxidation in steam they are δ-FeOOH, γ-Fe2O3 and Fe3O4. A minor phase detected following both kinds of oxidation may be ascribed to MnCrFeO4, Cr2FeO4, δ-FeOOH and γ-FeOOH produced in steam only while the base material is found following air oxidation. The proportion of Fe3O4 on the scale remains constant for all exposure durations in air oxidation, while it becomes constant in steam oxidation only in cases where the entire sample has been oxidized.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  14. 14
    Staff View
    ISSN:
    1588-2780
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Chemistry and Pharmacology
    Energy, Environment Protection, Nuclear Power Engineering
    Notes:
    Abstract Room temperature corrosion studies have been made on the rust of commercially available mild steel in a simulated acid rain environment using the method of transmission Mössbauer spectroscopy. The main corrosion products identified are α-FeOOH, γ-FeOOH, and a product with unfamiliar parameters which seems to be amorphous in nature (being very large linewidth −2.5 mm/s) and may be considered as an intermediate phase. A small amount of γ-Fe2O3 (6–8%) is also observed.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  15. 15
    Arshed, M. ; Anwar-ul-Islam, M. ; Siddique, M. ; Butt, N. M.
    Springer
    Published 1993
    Staff View
    ISSN:
    1588-2780
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Chemistry and Pharmacology
    Energy, Environment Protection, Nuclear Power Engineering
    Notes:
    Abstract The corrosion of mild steel as a result of 3 years of immersion in deionized water, using Mössbauer results, indicates that γ-FeOOH, α-FeOOH and Fe3O4 are formed as corrosion products. This study shows that purified water will produce α-FeOOH only when the exposure time is long. It is proposed that ferrihydrite, which is formed as an intermediate corrosion product, is converted to γ-FeOOH, which in turn is converted to α-FeOOH and Fe3O4.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses