Search Results - (Author, Cooperation:C. Haffner)

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  1. 1
    M. Florio ; M. Albert ; E. Taverna ; T. Namba ; H. Brandl ; E. Lewitus ; C. Haffner ; A. Sykes ; F. K. Wong ; J. Peters ; E. Guhr ; S. Klemroth ; K. Prufer ; J. Kelso ; R. Naumann ; I. Nusslein ; A. Dahl ; R. Lachmann ; S. Paabo ; W. B. Huttner
    American Association for the Advancement of Science (AAAS)
    Published 2015
    Staff View
    Publication Date:
    2015-02-28
    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:
    Animals ; Cell Separation ; GTPase-Activating Proteins/chemistry/genetics/*physiology ; Gene Duplication ; *Gene Expression Regulation, Developmental ; Humans ; Lateral Ventricles/cytology ; Mice ; Neocortex/cytology/*embryology/metabolism ; Neural Stem Cells/*cytology/metabolism ; Neurogenesis/*genetics ; Neuroglia/cytology/metabolism ; Neurons/cytology/metabolism ; Protein Structure, Tertiary ; Transcriptome
    Published by:
    http://www.aaas.org/

    Latest Papers from Table of Contents or Articles in Press
  2. 2
    Staff View
    Publication Date:
    2018-09-12
    Publisher:
    National Academy of Sciences
    Print ISSN:
    0027-8424
    Electronic ISSN:
    1091-6490
    Topics:
    Biology
    Medicine
    Natural Sciences in General
    Keywords:
    Letters
    Published by:
    http://www.nasonline.org/

    Latest Papers from Table of Contents or Articles in Press
  3. 3
    Folwaczny, M. ; Mehl, A. ; Haffner, C. ; Hickel, R.

    Munksgaard : Munksgaard International Publishers
    Published 1999
    Staff View
    ISSN:
    1600-051X
    Source:
    Blackwell Publishing Journal Backfiles 1879-2005
    Topics:
    Medicine
    Notes:
    Abstract. It was the aim of this in vitro study to determine the potential effects of 308 nm XeCl excimer laser radiation on root surfaces when used for removing calcified deposits. The source of laser radiation was a XeCl-excimer laser (MAX 10, Fa. Medolas, Germany) emitting ultraviolet radiation at a wavelength of 308 nm with a pulse duration of 60 ns. Subjects of irradiation were 60 extracted teeth which were devided into 2 groups of 30 samples each with (group 1) and without calculus (group 2). Specimens were irradiated with 800 laser pulses at 5 different energy-densities per pulse of 1.0 J/cm2, 2.0 J/cm2, 3.0 J/cm2, 4.0 J/cm2 and 5.0 J/cm2. For each parameter 6 samples (n=6) were exposed to 308 nm excimer-laser radiation. The ablation of hard tissue on the treated root surfaces was measured 3-dimensionally with a laser scanning device (100,000 surface points per sample; accuracy: 5 μm) and evaluated with a special image analyzing software (volume, mean, median, standard deviation). In addition, a scanning electron microscopic (SEM) evaluation of the irradiated root surfaces was performed. Statistical analysis was done using ANOVA with the Scheffé-test. The lowest amount of ablation on teeth without calculus was induced with 14.01 (±5.86) μm using laser radiation at an energy density of 2.0 J/cm2. Maximum tissue removal in this sample group was obtained with 56.67 (±21.05) μm with laser treatment at an energy density of 5.0 J/cm2. While no ablation of dental cementum was detectable after irradiating root surfaces without calculus at 1.0 J/cm2, a strong removal of calculus with a mean value of 31.91 (±4.2) μm was observed under these conditions. The results seem to indicate that a selective removal of subgingival calculus creating a homogenous shape of the root surface with 308 nm excimer laser radiation is possible. Furthermore, no signs of the formation of a smear layer nor the induction of thermal side-effects were observed.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1034/j.1600-051X.1999.260508.x

    Articles: DFG German National Licenses
  4. 4
    Haffner, C.

    Amsterdam : Elsevier
    Staff View
    ISSN:
    0040-4039
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Chemistry and Pharmacology
    Type of Medium:
    Electronic Resource
    URL:
    http://linkinghub.elsevier.com/retrieve/pii/S0040-4039(00)76215-0

    Articles: DFG German National Licenses