ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

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
    facet.materialart.
    Unknown
    Ketamine elicits antidepressant effects via HDAC5 [Neuroscience] (2015)
    National Academy of Sciences
    Details
    Publication Date: 2015-12-24
    Description: Ketamine produces rapid antidepressant-like effects in animal assays for depression, although the molecular mechanisms underlying these behavioral actions remain incomplete. Here, we demonstrate that ketamine rapidly stimulates histone deacetylase 5 (HDAC5) phosphorylation and nuclear export in rat hippocampal neurons through calcium/calmodulin kinase II- and protein kinase D-dependent pathways. Consequently, ketamine...
    Print ISSN: 0027-8424
    Electronic ISSN: 1091-6490
    Topics: Biology , Medicine , Natural Sciences in General
    Published by National Academy of Sciences
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 2
    facet.materialart.
    Unknown
    The Effect of Chromite Crystallization on the Distribution of Osmium, Iridium, Ruthenium and Rhodium in Picritic Magmas: an Example from the Emeishan Large Igneous Province, Southwestern China (2016)
    Oxford University Press
    Details
    Publication Date: 2016-07-01
    Description: The positive correlations between whole-rock concentrations of Cr and Os, Ir and Ru (referred to collectively as iridium-like platinum-group elements, IPGE) in both sulphide-poor plutonic and volcanic rocks suggest that chromite contributes to the collection of these elements during the early stages of sulphide-undersaturated magma differentiation. However, it is not clear whether these correlations are the result of IPGE partitioning into chromite or whether other minerals are involved. Positive correlations between MgO and IPGE have been observed, suggesting that these elements could be incorporated into olivine as well as into chromite. Alternatively, given the siderophile nature of IPGE, they may crystallize as discrete minerals together with chromite, as suggested by the presence of platinum-group minerals in chromite-rich rocks such as mantle podiform and crustal stratiform chromitites. To investigate the effect of chromite crystallization on the distribution of IPGE and Rh in picritic magmas, we have determined the content of these elements in chromites from the Emeishan Large Igneous Province (southwestern China) by in situ laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS). The time-resolved analysis signals are generally uniform, indicating that the IPGE and Rh are homogeneously distributed within the chromite crystals. The median concentrations are 30 ppb Os, 23 ppb Ir, 248 ppb Ru and 21 ppb Rh. The incorporation of Rh in chromites appears to be influenced by the oxidation state of the magma from which they crystallize because there is a positive correlation between the degree of inversion of the chromite structure [expressed by Fe 3+ /(Cr + Al + Fe 3+ )] and the Rh content of the analyzed crystals. In contrast, the enrichments of Os, Ir and Ru in chromites appear to be controlled by other parameters such as temperature or the S content of the magma. Based on empirical calculations, we determined that partition coefficients between chromite and melt are higher for Ru (127) than for Os (23), Ir (27) and Rh (32). Despite these high partition coefficients, mass-balance calculations show that chromite does not account for all the IPGE and Rh concentrations in the rocks, with chromite accounting for maxima of 84, 49, 22 and 20% of the whole-rock Ru, Rh, Ir and Os budgets, respectively. In situ LA-ICP-MS and scanning electron microscopy analyses reveal the presence of micrometric-sized PGE-rich minerals, including laurite (RuS 2 ), Os–Ir ± Ru alloys, sperrylite (PtAs 2 ) and Pt–Fe (± IPGE and Rh) alloys, in association with chromite crystals. The presence of these minerals may account for the balance of IPGE and Rh. Alternatively, if IPGE and Rh are compatible with olivine, the balance may be accounted for by the large amount of olivine crystals found in the Emeishan picrites. Based on numerical modelling, we conclude that chromite, olivine and platinum-group minerals all contribute to the collection of IPGE and Rh during the early stages of picritic magma differentiation. Also, we establish that the preferential incorporation of Ru into chromite is responsible for the negative Ru anomalies observed in the PGE patterns of the Emeishan flood basalts. On the other hand, the relative importance of olivine and platinum-group minerals in controlling IPGE and Rh remains uncertain and is a key subject for further investigation.
    Print ISSN: 0022-3530
    Electronic ISSN: 1460-2415
    Topics: Geosciences
    Published by Oxford University Press
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 3
    facet.materialart.
    Unknown
    Stem cell research in Korea (2004)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2004-08-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Song, Sang-yong -- New York, N.Y. -- Science. 2004 Aug 13;305(5686):944-5; author reply 944-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15310877" target="_blank"〉PubMed〈/a〉
    Keywords: Bioethical Issues ; Blastocyst/*cytology ; Cell Line ; Cloning, Organism/*ethics ; Embryo Research/*ethics ; Embryo, Mammalian/cytology ; Ethics Committees ; Ethics Committees, Research ; Humans ; Korea ; *Pluripotent Stem Cells
    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)
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 4
    facet.materialart.
    Unknown
    Generation of gut-homing IgA-secreting B cells by intestinal dendritic cells (2006)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2006-11-18
    Description: Normal intestinal mucosa contains abundant immunoglobulin A (IgA)-secreting cells, which are generated from B cells in gut-associated lymphoid tissues (GALT). We show that dendritic cells (DC) from GALT induce T cell-independent expression of IgA and gut-homing receptors on B cells. GALT-DC-derived retinoic acid (RA) alone conferred gut tropism but could not promote IgA secretion. However, RA potently synergized with GALT-DC-derived interleukin-6 (IL-6) or IL-5 to induce IgA secretion. Consequently, mice deficient in the RA precursor vitamin A lacked IgA-secreting cells in the small intestine. Thus, GALT-DC shape mucosal immunity by modulating B cell migration and effector activity through synergistically acting mediators.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mora, J Rodrigo -- Iwata, Makoto -- Eksteen, Bertus -- Song, Si-Young -- Junt, Tobias -- Senman, Balimkiz -- Otipoby, Kevin L -- Yokota, Aya -- Takeuchi, Hajime -- Ricciardi-Castagnoli, Paola -- Rajewsky, Klaus -- Adams, David H -- von Andrian, Ulrich H -- AI-061663/AI/NIAID NIH HHS/ -- G0601816/Medical Research Council/United Kingdom -- HL54936/HL/NHLBI NIH HHS/ -- HL56949/HL/NHLBI NIH HHS/ -- HL62524/HL/NHLBI NIH HHS/ -- R37 AI054636/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2006 Nov 17;314(5802):1157-60.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉CBR Institute for Biomedical Research and Department of Pathology, Harvard Medical School, Boston, MA 02115, USA. mora@cbr.med.harvard.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17110582" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; B-Lymphocytes/*immunology/secretion ; Cell Movement ; Cells, Cultured ; Chemotaxis, Leukocyte ; Dendritic Cells/*immunology ; Immunity, Mucosal ; Immunoglobulin A/*biosynthesis/immunology ; Interleukin-5/immunology ; Interleukin-6/immunology ; Intestinal Mucosa/immunology ; Intestines/cytology/*immunology ; Lymphoid Tissue/cytology/immunology ; Mice ; Mice, Inbred C57BL ; Receptors, Antigen, B-Cell/biosynthesis ; Tretinoin/immunology ; Vitamin A/physiology ; Vitamin A Deficiency/immunology ; Vitamins/immunology
    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)
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 5
    facet.materialart.
    Unknown
    Reactive oxygen species-responsive miR-210 regulates proliferation and migration of adipose-derived stem cells via PTPN2 (2013)
    Springer Nature
    Details
    Publication Date: 2013-04-12
    Description: Reactive oxygen species-responsive miR-210 regulates proliferation and migration of adipose-derived stem cells via PTPN2 Cell Death and Disease 4, e588 (April 2013). doi:10.1038/cddis.2013.117 Authors: J H Kim, S G Park, S-Y Song, J K Kim & J-H Sung
    Keywords: adipose-derived stem cellmiR-210reactive oxygen speciesElk1NF-κBPTPN2
    Electronic ISSN: 2041-4889
    Topics: Biology , Medicine
    Published by Springer Nature
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 6
    facet.materialart.
    Unknown
    Improved control strategy for PI-R current of DFIG considering voltage and current harmonics compensation (2016)
    Institute of Physics (IOP)
    Details
    Publication Date: 2016-09-27
    Description: With the rapid development of wind power generation, the related research of wind power control and integration issues has attracted much attention, and the focus of the research are shifting away from the ideal power grid environment to the actual power grid environment. As the main stream wind turbine generator, a doubly-fed induction generator (DFIG) is connected to the power grid directly by its stator, so it is particularly sensitive to the power grid. This paper studies the improvement of DFIG control technology in the power grid harmonic environment. Based on the DFIG dynamic model considering the power grid harmonic environment, this paper introduces the shortcomings of the common control strategy of DFIG, and puts forward the enhanced method. The decoupling control of the system is realized by compensating the coupling between the rotor harmonic voltage and harmonic current, improving the control performance. In addition, the simulation experiments on PSCAD/EMTDC are ca...
    Print ISSN: 1755-1307
    Electronic ISSN: 1755-1315
    Topics: Geography , Geosciences , Physics
    Published by Institute of Physics (IOP)
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 7
    facet.materialart.
    Unknown
    An improved AVC strategy applied in distributed wind power system (2016)
    Institute of Physics (IOP)
    Details
    Publication Date: 2016-09-27
    Description: Traditional AVC strategy is mainly used in wind farm and only concerns about grid connection point, which is not suitable for distributed wind power system. Therefore, this paper comes up with an improved AVC strategy applied in distributed wind power system. The strategy takes all nodes of distribution network into consideration and chooses the node having the most serious voltage deviation as control point to calculate the reactive power reference. In addition, distribution principles can be divided into two conditions: when wind generators access to network on single node, the reactive power reference is distributed according to reactive power capacity; when wind generators access to network on multi-node, the reference is distributed according to sensitivity. Simulation results show the correctness and reliability of the strategy. Compared with traditional control strategy, the strategy described in this paper can make full use of generators reactive power output ability acc...
    Print ISSN: 1755-1307
    Electronic ISSN: 1755-1315
    Topics: Geography , Geosciences , Physics
    Published by Institute of Physics (IOP)
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 8
    Electronic Resource
    Electronic Resource
    Cyclic 3',5'-nucleotide phosphodiesterase. Distribution and developmental changes of the enzyme and its protein activator in mammalian tissues and cells
    Amsterdam : Elsevier
    BBA - Enzymology 341 (1974), S. 402-411 
    Details
    ISSN: 0005-2744
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0005-2744(74)90233-2
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    Cyclic 3',5'-nucleotide phosphodiesterase properties of the enzyme of human blood platelets
    Amsterdam : Elsevier
    BBA - Enzymology 242 (1971), S. 593-605 
    Details
    ISSN: 0005-2744
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0005-2744(71)90152-5
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    Differential gene expression of fibroblast growth factor receptor isoforms in rat ovary
    Amsterdam : Elsevier
    Molecular and Cellular Endocrinology 104 (1994), S. 75-80 
    Details
    ISSN: 0303-7207
    Keywords: In situ hybridization ; Rat ovary ; bFGF receptor isoform
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Medicine
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0303-7207(94)90053-1
    Location Call Number Expected 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...