Search Results - (Author, Cooperation:S. Malek)

Showing 1 - 12 results of 12, query time: 0.19s Refine Results
  1. 1
    Staff View
    Publication Date:
    2013-08-13
    Publisher:
    Nature Publishing Group (NPG)
    Print ISSN:
    0028-0836
    Electronic ISSN:
    1476-4687
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Keywords:
    Allosteric Regulation/drug effects ; Azetidines/pharmacology ; Cell Survival/drug effects ; Clinical Trials as Topic ; Crystallography, X-Ray ; Enzyme Activation/drug effects ; Feedback, Physiological/drug effects ; Genes, ras/*genetics ; HCT116 Cells ; Humans ; MAP Kinase Signaling System/drug effects ; Mitogen-Activated Protein Kinase Kinases/*antagonists & ; inhibitors/chemistry/metabolism ; Models, Molecular ; Neoplasms/*enzymology/*genetics/pathology ; Oncogene Protein p21(ras)/*genetics ; Phosphorylation/drug effects ; Phosphoserine/metabolism ; Piperidines/pharmacology ; Protein Kinase Inhibitors/*pharmacology ; Proto-Oncogene Proteins B-raf/genetics/*metabolism
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  2. 2
    Staff View
    Publication Date:
    2018-02-23
    Publisher:
    Wiley-Blackwell
    Print ISSN:
    0043-1397
    Electronic ISSN:
    1944-7973
    Topics:
    Architecture, Civil Engineering, Surveying
    Geography
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  3. 3
    Kerdja, T. ; Abdelli, S. ; Ghobrini, D. ; Malek, S.

    [S.l.] : American Institute of Physics (AIP)
    Published 1996
    Staff View
    ISSN:
    1089-7550
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Notes:
    Time- and space-resolved emission spectroscopy measurements were performed to investigate plasma dynamics during laser evaporation of a graphite target. The evolution of the velocity and the emission intensity of the excited species versus the distance and the pressure of the foreign gas are studied. The time-resolved emission intensity of C II* transition at 426.7 nm shows a double-peak structure, resulting from the stratification of the plasma into fast and slow components. Intense molecular emission is found to occur behind a front separating the plasma from the foreign gas. Two stages of expansion are found in the generated plume, the first one starting just after the laser irradiation, the second beginning some time later depending on the nature and the pressure of the foreign gas. The two stages are well described, using a viscous drag force model for the first one and a delayed ideal blast wave model for the second. © 1996 American Institute of Physics.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  4. 4
    DENNELL, R. ; MALEK, S. R. A.

    [s.l.] : Nature Publishing Group
    Published 1953
    Staff View
    ISSN:
    1476-4687
    Source:
    Nature Archives 1869 - 2009
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Notes:
    [Auszug] THE insect epicuticle is known to be a complex structure, and the different views that have been put forward regarding its constitution have been difficult to reconcile. Wigglesworth has indicated the presence in Rhodnius1, Tenebrio2 and Periplaneta* of four epicuticular layers the cuticulin, ...
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  5. 5
    MALEK, S. R. A.

    [s.l.] : Nature Publishing Group
    Published 1963
    Staff View
    ISSN:
    1476-4687
    Source:
    Nature Archives 1869 - 2009
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Notes:
    [Auszug] The reason for this peculiarity has been examined during the course of an investigation into the cuticle of the scorpion Buthus quinquestriatus. Sheets of cuticles of this scorpion were subjected, after chitosan transformation, to different treatments: they were either stored in alcohol or washed ...
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  6. 6
    MALEK, S. R. A.

    [s.l.] : Nature Publishing Group
    Published 1960
    Staff View
    ISSN:
    1476-4687
    Source:
    Nature Archives 1869 - 2009
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Notes:
    [Auszug] In the course of this work, it was found that J5-(3: 4-dihydroxyphenyl)propionic acid is present in the soft cuticle of ScMstocerca. This is important, for Hackman3 has suggested that the degradation of J5-(3: 4-dihydroxyphenyl)alanine may not proceed through the propionic derivative. In the full ...
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  7. 7
    Malek, S. R. A. ; Bawab, F. M.
    Springer
    Published 1971
    Staff View
    ISSN:
    1420-9071
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Biology
    Medicine
    Notes:
    Résumé Le spermatophore chezPenaeus trisulcatus (Crustacés Décapodes) a une structure très compliquée. Sa dureté est dûe à un tannage phénolique qui ressemble à ce qui a lieu en général dans les cuticules d'arthropodes, bien qu'il n'implique pas de polyphénols libres.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  8. 8
    MALEK, S. R. A.

    [s.l.] : Nature Publishing Group
    Published 1957
    Staff View
    ISSN:
    1476-4687
    Source:
    Nature Archives 1869 - 2009
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Notes:
    [Auszug] The cuticle of the last nymphal instar of the desert locust, Schistocerca gregaria (Forskal), is pale and not amber-coloured, although, like that of the cockroach Periplaneta1, it appears to be phenolically tanned. It contains melanin only in well-defined patches. A critical study of melanin ...
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  9. 9
    MALEK, S. R. A.

    [s.l.] : Nature Publishing Group
    Published 1956
    Staff View
    ISSN:
    1476-4687
    Source:
    Nature Archives 1869 - 2009
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Notes:
    [Auszug] A similar membrane has been found between new and old cuticles of the locust Schistocerca gregaria at the time of moulting from nymph to adult and at all the preceding nymphal moults. Its origin has been studied in successive stages of the nymphal-adult moult. No trace of the membrane is seen until ...
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  10. 10
    Alsharif, H. ; Ezzat, Sh. ; Hay, A. ; Motty, N. A. ; Malek, S. A.
    Springer
    Published 1979
    Staff View
    ISSN:
    0942-0940
    Keywords:
    Cervical spondylosis myelopathy ; radiculopathy ; cervical laminectomy ; foramen magnum decompression
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Medicine
    Notes:
    Summary Twenty-six patients with cervical spondylosis and radiculomyelopathy were treated surgically. Eight patients had cervical laminectomy C1-C7, and 16 patients had complete cervical laminectomy C1-C7 with excision of the posterior rim of the foramen magnum. Follow-up of patients was from two months to eight years. The majority of patients improved markedly, and some of them had excellent results.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  11. 11
    Ishak, M. M. ; Abdel-Malek, S. A.
    Springer
    Published 1980
    Staff View
    ISSN:
    1573-5117
    Keywords:
    Lake Qarun ; Saline lakes ; Lakes environment
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Biology
    Notes:
    Abstract The lake situation and morphometry, climatic conditions, water balance and level, hydrology and hydrochemistry of lake Qarun were investigated. Salinity proved to be the most important factor affecting the lake water. Annual changes in salinity of the lake water were recorded. In 1906, the salinity ranged from 10.65 and 11.26‰, while in 1974–1976 it reached 30.9–34.5‰. The physico-chemical properties of the lake change greatly owing to climatic and anthropological factors.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  12. 12
    Abdel-Malek, S. A. ; Ishak, M. M.
    Springer
    Published 1980
    Staff View
    ISSN:
    1573-5117
    Keywords:
    Hydrobiology ; Plankton-Benthos
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Biology
    Notes:
    Abstract Distribution and abundance of phyto-, zooplankton and benthic organisms in Lake Qarun were investigated during the period from January 1974 to December 1977. Average number of phytoplankton cells was 152,300 cells/L and its biomass was 0.365 g/C/m3; average number of zooplankton was 31.44 × 103/m3 and its biomass was 194.19 mg/m3. The average number of benthic fauna was 19889/m2 and its biomass was 400.22 g/m2 (dry wt.). Therefore, Lake Qarun may be considered as a highly eutrophic body of water. Freshwater planktonic species, that used to inhabit the lake, such as Diaptomus salinus and the cladoceran Moina salinarum, disappeared completely when the salinity of the lake water reached 30–34‰ However, some Rotatoria were able to withstand the high salinity. The new composition of the zooplankton community shows that the marine zooplankton species include not only Acartia latisetosa and Cirripedia nauplii, but also other species such as Polychaeta, Obelia medusae, etc. The benthos of Lake Qarun is characterised by an intensive growth of few species. The major part (i.e. 93.54% by weight) of bottom fauna in the lake is Mollusca, mainly Cerastoderma glaucum (69·84% by weight).
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses