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  • 1
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    The modulation of the seasonal cross-shelf sea level variation by the cold pool in the Middle Atlantic Bight (2015)
    Wiley
    Details
    Publication Date: 2015-10-16
    Description: This study explores the influence of the cold pool in the Middle Atlantic Bight (MAB) to cross-shelf sea surface slope by fitting an annual harmonic to temperature and salinity profiles from 1993 to 2012, and compares to the 20-year-averaged altimetry sea level anomaly (SLA). The consistency within bottom temperature, thermal steric height, total steric height and altimetry observation validates that the cold pool induces depressed sea level in the middle shelf overlapping with the dominant surface seasonal cycles. Temporally, the cold pool pattern is most apparent in July and August as a result of magnitude competition between the thermal and haline steric height. In addition, Ensemble Empirical Mode Decomposition (EEMD) is employed to reconstruct the altimetry SLA and reveals the middle-shelf depression pattern from single year's SLA data. The locations of the SLA depression from 1993 to 2012 agree with the cold pool locations identified from in-situ measurements, suggesting a promising application of altimetry SLA in the cold pool study. Conclusively, this study reveals the modulation of the cross-shelf sea level variation by the cold pool, and contributes to the understanding of the sea level response to water masses on the continental shelf. This article is protected by copyright. All rights reserved.
    Print ISSN: 0148-0227
    Topics: Geosciences , Physics
    Published by Wiley on behalf of American Geophysical Union (AGU).
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  • 2
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    Pyrosequencing Reveals Bacterial Communities in Unchlorinated Drinking Water Distribution System: An Integral Study of Bulk Water, Suspended Solids, Loose Deposits, and Pipe Wall Biofilm (2014)
    American Chemical Society (ACS)
    Details
    Publication Date: 2014-05-04
    Description: Environmental Science & Technology DOI: 10.1021/es5009467
    Print ISSN: 0013-936X
    Electronic ISSN: 1520-5851
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Published by American Chemical Society (ACS)
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  • 3
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    Far-reaching effects of the Hawaiian Islands on the Pacific Ocean-atmosphere system (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-06-16
    Description: Using satellite data, we detected a wind wake trailing westward behind the Hawaiian Islands for 3000 kilometers, a length many times greater than observed anywhere else on Earth. This wind wake drives an eastward ocean current that draws warm water from the Asian coast 8000 kilometers away, leaving marked changes in surface and subsurface ocean temperature. Standing in the path of the steady trade winds, Hawaii triggers an air-sea interaction that provides the feedback to sustain the influence of these small islands over a long stretch of the Pacific Ocean.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Xie, S P -- Liu, W T -- Liu, Q -- Nonaka, M -- New York, N.Y. -- Science. 2001 Jun 15;292(5524):2057-60.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉International Pacific Research Center, School of Ocean and Earth Science and Technology, University of Hawaii, 2525 Correa Road, Honolulu, HI 96822, USA. xie@soest.hawaii.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11408652" target="_blank"〉PubMed〈/a〉
    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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    PHF8 mediates histone H4 lysine 20 demethylation events involved in cell cycle progression (2010)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2010-07-14
    Description: While reversible histone modifications are linked to an ever-expanding range of biological functions, the demethylases for histone H4 lysine 20 and their potential regulatory roles remain unknown. Here we report that the PHD and Jumonji C (JmjC) domain-containing protein, PHF8, while using multiple substrates, including H3K9me1/2 and H3K27me2, also functions as an H4K20me1 demethylase. PHF8 is recruited to promoters by its PHD domain based on interaction with H3K4me2/3 and controls G1-S transition in conjunction with E2F1, HCF-1 (also known as HCFC1) and SET1A (also known as SETD1A), at least in part, by removing the repressive H4K20me1 mark from a subset of E2F1-regulated gene promoters. Phosphorylation-dependent PHF8 dismissal from chromatin in prophase is apparently required for the accumulation of H4K20me1 during early mitosis, which might represent a component of the condensin II loading process. Accordingly, the HEAT repeat clusters in two non-structural maintenance of chromosomes (SMC) condensin II subunits, N-CAPD3 and N-CAPG2 (also known as NCAPD3 and NCAPG2, respectively), are capable of recognizing H4K20me1, and ChIP-Seq analysis demonstrates a significant overlap of condensin II and H4K20me1 sites in mitotic HeLa cells. Thus, the identification and characterization of an H4K20me1 demethylase, PHF8, has revealed an intimate link between this enzyme and two distinct events in cell cycle progression.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3059551/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3059551/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Liu, Wen -- Tanasa, Bogdan -- Tyurina, Oksana V -- Zhou, Tian Yuan -- Gassmann, Reto -- Liu, Wei Ting -- Ohgi, Kenneth A -- Benner, Chris -- Garcia-Bassets, Ivan -- Aggarwal, Aneel K -- Desai, Arshad -- Dorrestein, Pieter C -- Glass, Christopher K -- Rosenfeld, Michael G -- R01 CA097134/CA/NCI NIH HHS/ -- R01 CA097134-09/CA/NCI NIH HHS/ -- R01 DK018477/DK/NIDDK NIH HHS/ -- R01 DK018477-35/DK/NIDDK NIH HHS/ -- R01 DK039949/DK/NIDDK NIH HHS/ -- R01 DK039949-18/DK/NIDDK NIH HHS/ -- R01 HL065445/HL/NHLBI NIH HHS/ -- R01 NS034934/NS/NINDS NIH HHS/ -- R01 NS034934-21/NS/NINDS NIH HHS/ -- R37 DK039949/DK/NIDDK NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2010 Jul 22;466(7305):508-12. doi: 10.1038/nature09272. Epub 2010 Jul 11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, School of Medicine, University of California at San Diego, 9500 Gilman Drive, La Jolla, California 92093, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20622854" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Triphosphatases/chemistry/metabolism ; Cell Cycle/*physiology ; Cell Line ; Chromatin/metabolism ; Chromosomal Proteins, Non-Histone/chemistry/deficiency/genetics/*metabolism ; DNA-Binding Proteins/chemistry/metabolism ; HeLa Cells ; Histone Demethylases/chemistry/genetics/*metabolism ; Histone-Lysine N-Methyltransferase/metabolism ; Histones/chemistry/*metabolism ; Host Cell Factor C1/genetics/metabolism ; Humans ; Lysine/*metabolism ; Methylation ; Multiprotein Complexes/chemistry/metabolism ; Phosphorylation ; Promoter Regions, Genetic ; Protein Structure, Tertiary ; Transcription Factors/chemistry/deficiency/genetics/*metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 5
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    Insights into the phylogeny and coding potential of microbial dark matter (2013)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2013-07-16
    Description: Genome sequencing enhances our understanding of the biological world by providing blueprints for the evolutionary and functional diversity that shapes the biosphere. However, microbial genomes that are currently available are of limited phylogenetic breadth, owing to our historical inability to cultivate most microorganisms in the laboratory. We apply single-cell genomics to target and sequence 201 uncultivated archaeal and bacterial cells from nine diverse habitats belonging to 29 major mostly uncharted branches of the tree of life, so-called 'microbial dark matter'. With this additional genomic information, we are able to resolve many intra- and inter-phylum-level relationships and to propose two new superphyla. We uncover unexpected metabolic features that extend our understanding of biology and challenge established boundaries between the three domains of life. These include a novel amino acid use for the opal stop codon, an archaeal-type purine synthesis in Bacteria and complete sigma factors in Archaea similar to those in Bacteria. The single-cell genomes also served to phylogenetically anchor up to 20% of metagenomic reads in some habitats, facilitating organism-level interpretation of ecosystem function. This study greatly expands the genomic representation of the tree of life and provides a systematic step towards a better understanding of biological evolution on our planet.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rinke, Christian -- Schwientek, Patrick -- Sczyrba, Alexander -- Ivanova, Natalia N -- Anderson, Iain J -- Cheng, Jan-Fang -- Darling, Aaron -- Malfatti, Stephanie -- Swan, Brandon K -- Gies, Esther A -- Dodsworth, Jeremy A -- Hedlund, Brian P -- Tsiamis, George -- Sievert, Stefan M -- Liu, Wen-Tso -- Eisen, Jonathan A -- Hallam, Steven J -- Kyrpides, Nikos C -- Stepanauskas, Ramunas -- Rubin, Edward M -- Hugenholtz, Philip -- Woyke, Tanja -- England -- Nature. 2013 Jul 25;499(7459):431-7. doi: 10.1038/nature12352. Epub 2013 Jul 14.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉DOE Joint Genome Institute, Walnut Creek, California 94598, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23851394" target="_blank"〉PubMed〈/a〉
    Keywords: Archaea/*classification/*genetics/isolation & purification/metabolism ; Bacteria/*classification/*genetics/isolation & purification/metabolism ; Ecosystem ; Genome, Archaeal/genetics ; Genome, Bacterial/genetics ; Metagenome/genetics ; *Metagenomics ; Molecular Sequence Data ; *Phylogeny ; Sequence Analysis, DNA ; Single-Cell Analysis
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 6
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    Molecular architecture of the human U4/U6.U5 tri-snRNP (2016)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2016-02-26
    Description: The U4/U6.U5 triple small nuclear ribonucleoprotein (tri-snRNP) is a major spliceosome building block. We obtained a three-dimensional structure of the 1.8-megadalton human tri-snRNP at a resolution of 7 angstroms using single-particle cryo-electron microscopy (cryo-EM). We fit all known high-resolution structures of tri-snRNP components into the EM density map and validated them by protein cross-linking. Our model reveals how the spatial organization of Brr2 RNA helicase prevents premature U4/U6 RNA unwinding in isolated human tri-snRNPs and how the ubiquitin C-terminal hydrolase-like protein Sad1 likely tethers the helicase Brr2 to its preactivation position. Comparison of our model with cryo-EM three-dimensional structures of the Saccharomyces cerevisiae tri-snRNP and Schizosaccharomyces pombe spliceosome indicates that Brr2 undergoes a marked conformational change during spliceosome activation, and that the scaffolding protein Prp8 is also rearranged to accommodate the spliceosome's catalytic RNA network.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Agafonov, Dmitry E -- Kastner, Berthold -- Dybkov, Olexandr -- Hofele, Romina V -- Liu, Wen-Ti -- Urlaub, Henning -- Luhrmann, Reinhard -- Stark, Holger -- New York, N.Y. -- Science. 2016 Mar 25;351(6280):1416-20. doi: 10.1126/science.aad2085. Epub 2016 Feb 18.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cellular Biochemistry, Max Planck Institute for Biophysical Chemistry, D-37077 Gottingen, Germany. ; Bioanalytical Mass Spectrometry, Max Planck Institute for Biophysical Chemistry, D-37077 Gottingen, Germany. Bioanalytics Group, Institute for Clinical Chemistry, University Medical Center Gottingen, D-37075 Gottingen, Germany. ; Department of 3D Electron Cryomicroscopy, Georg-August Universitat Gottingen, D-37077 Gottingen, Germany. Department of Structural Dynamics, Max Planck Institute for Biophysical Chemistry, D-37077 Gottingen, Germany. ; Bioanalytical Mass Spectrometry, Max Planck Institute for Biophysical Chemistry, D-37077 Gottingen, Germany. Bioanalytics Group, Institute for Clinical Chemistry, University Medical Center Gottingen, D-37075 Gottingen, Germany. reinhard.luehrmann@mpi-bpc.mpg.de hstark1@gwdg.de henning.urlaub@mpibpc.mpg.de. ; Department of Cellular Biochemistry, Max Planck Institute for Biophysical Chemistry, D-37077 Gottingen, Germany. reinhard.luehrmann@mpi-bpc.mpg.de hstark1@gwdg.de henning.urlaub@mpibpc.mpg.de. ; Department of 3D Electron Cryomicroscopy, Georg-August Universitat Gottingen, D-37077 Gottingen, Germany. Department of Structural Dynamics, Max Planck Institute for Biophysical Chemistry, D-37077 Gottingen, Germany. reinhard.luehrmann@mpi-bpc.mpg.de hstark1@gwdg.de henning.urlaub@mpibpc.mpg.de.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26912367" target="_blank"〉PubMed〈/a〉
    Keywords: Cryoelectron Microscopy ; Crystallography, X-Ray ; DEAD-box RNA Helicases/chemistry ; Enzyme Activation ; HeLa Cells ; Humans ; Models, Molecular ; Peptide Elongation Factors/chemistry ; Protein Conformation ; RNA Helicases/chemistry ; RNA-Binding Proteins/chemistry ; Ribonucleoprotein, U4-U6 Small Nuclear/*chemistry ; Ribonucleoprotein, U5 Small Nuclear/*chemistry ; Ribonucleoproteins, Small Nuclear/chemistry ; Saccharomyces cerevisiae Proteins/chemistry ; Schizosaccharomyces/metabolism ; Ubiquitin Thiolesterase/chemistry
    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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  • 7
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    Electron temperature and density probe for small aeronomy satellites (2015)
    American Institute of Physics (AIP)
    Details
    Publication Date: 2015-08-22
    Description: A compact and low power consumption instrument for measuring the electron density and temperature in the ionosphere has been developed by modifying the previously developed Electron Temperature Probe (ETP). A circuit block which controls frequency of the sinusoidal signal is added to the ETP so that the instrument can measure both T e in low frequency mode and N e in high frequency mode from the floating potential shift of the electrode. The floating potential shift shows a minimum at the upper hybrid resonance frequency (f UHR ). The instrument which is named “TeNeP” can be used for tiny satellites which do not have enough conductive surface area for conventional DC Langmuir probe measurements. The instrument also eliminates the serious problems associated with the contamination of satellite surface as well as the sensor electrode.
    Print ISSN: 0034-6748
    Electronic ISSN: 1089-7623
    Topics: Electrical Engineering, Measurement and Control Technology , Physics
    Published by American Institute of Physics (AIP)
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  • 8
    Electronic Resource
    Electronic Resource
    Characterization of restriction endonuclease maps of hepatitis B viral DNAS
    Amsterdam : Elsevier
    Biochemical and Biophysical Research Communications 129 (1985), S. 797-803 
    Details
    ISSN: 0006-291X
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0006-291X(85)91962-X
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  • 9
    Electronic Resource
    Electronic Resource
    Visible and band edge electroluminescence from indium tin oxide/SiO2/Si metal–oxide–semiconductor structures (2001)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 89 (2001), S. 323-326 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Characteristics of electroluminescence from indium tin oxide (ITO)/SiO2/Si metal–oxide–semiconductor (MOS) structures fabricated on both p-type and n-type Si wafers were investigated. The ITO/SiO2/Si MOS on p-type Si could have both the visible and band edge electroluminescence, while the ITO/SiO2/Si MOS on n-type Si has only band edge emission. The reason for the difference is attributed to the impact ionization that only occurs for ITO/SiO2/Si(p) MOS. The study indicates that the band edge emission and visible luminescence are competing processes. The electroluminescence from ITO/SiO2/Si(n) is also discovered to be less than that from the Al/SiO2/Si(n). The reason is possibly due to the damage of the oxide bonding and the SiO2/Si interface during the ITO sputtering. © 2001 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1331647
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  • 10
    Electronic Resource
    Electronic Resource
    Hot carrier recombination model of visible electroluminescence from metal–oxide–silicon tunneling diodes (2000)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 77 (2000), S. 4347-4349 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We report the visible electroluminescence at room temperature from metal–oxide–silicon tunneling diodes. As biased in the Fowler–Nordheim regime, the electrons tunnel from the gate electrode through the ultrathin oxide and reach the Si anode with sufficiently high energy. The hot electrons cause the impact ionization, and generate the secondary hot electrons and hot holes in Si substrates. The visible light comes from the radiative recombination between the secondary hot electrons and hot holes, and the hot carrier recombination model can fit the visible electroluminescence spectra. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1332825
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