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  • 1
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    The Carboniferous Timescale (2020)
    London : The Geological Society
    Details
    Keywords: Carboniferous; Pangaea; ice age; biochronology; biostratigraphy; magnetostratigraphy; radioisotopic age
    Description / Table of Contents: 10 December 2020 --- Proposed chronostratigraphic units for the Carboniferous and Early Permian of the southwestern Gondwana margin / Carlos R. González and Pamela Díaz Saravia / Geological Society, London, Special Publications, 512, https://doi.org/10.1144/SP512-2020-48 --- 7 December 2020 --- A geomagnetic polarity timescale for the Carboniferous / Mark W. Hounslow / Geological Society, London, Special Publications, 512, https://doi.org/10.1144/SP512-2020-102 --- 1 December 2020 --- Carboniferous Smaller Foraminifera: Convergences and Divergences / Daniel Vachard and François Le Coze / Geological Society, London, Special Publications, 512, https://doi.org/10.1144/SP512-2020-42 --- 30 November 2020 --- Carboniferous Crinoids / William I. Ausich, Thomas W. Kammer and Georgy V. Mirantsev / Geological Society, London, Special Publications, 512, https://doi.org/10.1144/SP512-2020-71 --- 27 November 2020 --- Carboniferous macrofloral biostratigraphy – an overview / Stanislav Opluštil, Christopher J. Cleal, Jun Wang and Mingli Wan / Geological Society, London, Special Publications, 512, https://doi.org/10.1144/SP512-2020-97 --- 26 November 2020 --- The biostratigraphy of Carboniferous chondrichthyans / Michał Ginter / Geological Society, London, Special Publications, 512, https://doi.org/10.1144/SP512-2020-91 --- 25 November 2020 --- Carboniferous isotope stratigraphy / Jitao Chen, Bo Chen and Isabel P. Montañez / Geological Society, London, Special Publications, 512, https://doi.org/10.1144/SP512-2020-72 --- 24 November 2020 --- Carboniferous conodont biostratigraphy / James E. Barrick, Alexander S. Alekseev, Silvia Blanco-Ferrera, Natalia V. Goreva, Keyi Hu, Lance L. Lambert, Tamara I. Nemyrovska, Yuping Qi, Scott M. Ritter and Javier Sanz-López / Geological Society, London, Special Publications, 512, https://doi.org/10.1144/SP512-2020-38
    Pages: Illustrationen, Diagramme, Karten
    Edition: online first
    URL: https://sp.lyellcollection.org/online-first/512
    Language: English
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  • 2
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    PTEN regulates NK cell trafficking [Immunology and Inflammation] (2015)
    National Academy of Sciences
    Details
    Publication Date: 2015-02-18
    Description: Phosphatase and tensin homolog (PTEN) is a critical negative regulator of the phosphoinositide-3 kinase pathway, members of which play integral roles in natural killer (NK) cell development and function. However, the functions of PTEN in NK cell biology remain unknown. Here, we used an NK cell-specific PTEN-deletion mouse model to...
    Print ISSN: 0027-8424
    Electronic ISSN: 1091-6490
    Topics: Biology , Medicine , Natural Sciences in General
    Published by National Academy of Sciences
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  • 3
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    Neuroscience. Neural stem cells, excited (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-03-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hsieh, Jenny -- Schneider, Jay W -- New York, N.Y. -- Science. 2013 Mar 29;339(6127):1534-5. doi: 10.1126/science.1237576.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA. jenny.hsieh@utsouthwestern.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23539589" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain/*cytology/*physiology ; Calcium Channels/physiology ; Cells, Cultured ; Humans ; Neural Stem Cells/*physiology ; *Neurogenesis ; Receptors, N-Methyl-D-Aspartate/physiology ; *Synaptic Transmission ; gamma-Aminobutyric Acid/physiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 4
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    Activation of the myogenic lineage by MEF2A, a factor that induces and cooperates with MyoD (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-11-18
    Description: Muscle enhancer factor-2A (MEF2A), a member of the MADS family, induced myogenic development when ectopically expressed in clones of nonmuscle cells of human clones, a function previously limited to the muscle basic helix-loop-helix (bHLH) proteins. During myogenesis, MEF2A and bHLH proteins cooperatively activate skeletal muscle genes and physically interact through the MADS domain of MEF2A and the three myogenic amino acids of the muscle bHLH proteins. Thus, skeletal myogenesis is mediated by two distinct families of mutually inducible and interactive muscle transcription factors, either of which can initiate the developmental cascade.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kaushal, S -- Schneider, J W -- Nadal-Ginard, B -- Mahdavi, V -- New York, N.Y. -- Science. 1994 Nov 18;266(5188):1236-40.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cardiology, Children's Hospital, Harvard Medical School, Boston, MA 02115.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7973707" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Binding Sites ; Cell Differentiation ; Cell Line ; DNA/metabolism ; DNA-Binding Proteins/genetics/*metabolism ; *Gene Expression Regulation ; Genes, Reporter ; Haplorhini ; Helix-Loop-Helix Motifs ; Humans ; MADS Domain Proteins ; MEF2 Transcription Factors ; Mice ; Molecular Sequence Data ; Muscle, Skeletal/*cytology/metabolism ; MyoD Protein/biosynthesis/*metabolism ; Myogenic Regulatory Factors ; Myogenin/biosynthesis/genetics/metabolism ; Transcription Factors/genetics/*metabolism ; Transfection
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 5
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    Reversal of terminal differentiation mediated by p107 in Rb-/- muscle cells (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-06-03
    Description: The terminal differentiation of mammalian muscle cells requires the tumor suppressor retinoblastoma protein (Rb). Unlike their wild-type counterparts, multinucleated myotubes from mouse cells deficient in Rb (Rb-/-) were induced by serum to re-enter the cell cycle. Development of the myogenic phenotype in Rb-/- cells correlated with increased expression of p107, which interacted with myogenic transcription factors. Serum-induced cell cycle reentry, on the other hand, correlated with decreased p107 expression. Thus, although p107 could substitute for Rb as a cofactor for differentiation, it could not maintain the terminally differentiated state in Rb-/- myotubes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schneider, J W -- Gu, W -- Zhu, L -- Mahdavi, V -- Nadal-Ginard, B -- New York, N.Y. -- Science. 1994 Jun 3;264(5164):1467-71.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cardiology, Children's Hospital, Harvard Medical School, Boston, MA 02115.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8197461" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Blood ; Cell Cycle ; Cell Differentiation ; Cell Line ; Culture Media ; Gene Expression ; Helix-Loop-Helix Motifs ; Humans ; Mice ; Muscles/*cytology/metabolism ; Myogenin/metabolism ; *Nuclear Proteins ; Proteins/genetics/*physiology ; Recombinant Fusion Proteins/metabolism ; Retinoblastoma Protein/genetics/*physiology ; Retinoblastoma-Like Protein p107 ; Transcriptional Activation ; Transfection ; Tumor Cells, Cultured
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 6
    Electronic Resource
    Electronic Resource
    Terminal Groups of Tobacco Mosaic Virus (1955)
    [s.l.] : Nature Publishing Group
    Nature 176 (1955), S. 456-457 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Harris and Knight1 found that the only amino-acid liberated by treatment of the native virus with carboxypeptidase was threontne. Assuming a molecular weight of 40 X 106 for the tobacco mosaic virus, the number of terminal threonine residues would be 2,700. We have confirmed this experimental ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/176456a0
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  • 7
    Electronic Resource
    Electronic Resource
    Internal magnetic fields in the high-temperature superconductor YBa2Cu3O7−δ from muon spin rotation experiments (1988)
    Springer
    The European physical journal 72 (1988), S. 175-180 
    Details
    ISSN: 1434-6036
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Muon spin rotation (μSR) measurements of the internal magnetic fields in sintered YBa2Cu3O7−δ samples are reported. Pronounced differences between field-cooled (FC) and zero-field-cooled (ZFC) μSR signals, hysteresis effects and flux trapping are observed. The μSR results are compared with the results of macroscopic experiments (susceptibility, magnetization, resistivity) and with predictions obtained from models of weakly-coupled superconducting regions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01312133
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  • 8
    Electronic Resource
    Electronic Resource
    Muonium states in zincblende-structured compounds (1986)
    Springer
    Hyperfine interactions 32 (1986), S. 607-612 
    Details
    ISSN: 1572-9540
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The authors present a list of results of μSR experiments in materials with the diamond and zincblende structure. Besides the muonium hyperfine parameters, additional information is tabulated: the formation probability for the different muon states, the highest temperatures at which muonium states have been observed and the types of transitions found to occur between these states. The muonium hyperfine parameters show a linear rise as a function of host ionicity from Ge to GaAs to ZnSe followed by a sharp drop to CuBr.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02394963
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  • 9
    Electronic Resource
    Electronic Resource
    Absolute sign of the Mu* hyperfine parameters in diamond (1986)
    Springer
    Hyperfine interactions 32 (1986), S. 583-588 
    Details
    ISSN: 1572-9540
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Standard μSR experiments in diamond have shown that the relative sign of the hyperfine parameters of the anisotropic Mu* state is negative (A ‖/A ⊥〈0). We report an experimental determination of theabsolute sign of the Mu* hyperfine parameters by studying the transferred muon polarization during the thermally-activated transition from the isotropic Mu state to Mu*. The results demonstrate that the isotropic part of the Mu* hyperfine interaction is negative. In a nitrogen-poor diamond, both the Mu disappearance rate and the enhancement of the Mu* signals are well-described by a single Arrhenius law.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02394959
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  • 10
    Electronic Resource
    Electronic Resource
    Influence of a transport current on the local magnetic field distribution in sintered YBa2Cu3Ox (1991)
    Springer
    Hyperfine interactions 63 (1991), S. 33-39 
    Details
    ISSN: 1572-9540
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The influence of a transport current on the magnetic flux-line distribution in sintered YBCO was studied by means of μSR. Pronounced differences between zero-field-cooled (ZFC) and field-cooled (FC) signals and irreversible behavior were observed. In the ZFC case even a small transport current (10 A/cm2) tends to orderirreversibly the inhomogeneous flux-line distribution considerably, suggesting a broad distribution of pinning barriers. However, for a FC sample no noticeable change in the flux distribution in the presence of a transport current (up to 40 A/cm2) was detected, indicating that the FC state represents a stable flux-line configuration.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02395982
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