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Single neurons in monkey prefrontal cortex encode volitional initiation of vocalizations (2013)

Steffen R. Hage; Andreas Nieder

Springer Nature

In: Nature Communications

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Publikationsdatum: 2013-09-08

Beschreibung: Article The Broca area is located in the human prefrontal cortex and is involved in voluntary speech. Hage and Nieder now show that a monkey homologue of Broca’s area is similarly responsible for monkey volitional vocalizations. Nature Communications doi: 10.1038/ncomms3409 Authors: Steffen R. Hage, Andreas Nieder

Digitale ISSN: 2041-1723

Thema: Biologie , Chemie und Pharmazie , Allgemeine Naturwissenschaft , Physik

Publiziert von Springer Nature

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Quantal and graded stimulation of B lymphocytes as alternative strategies for regulating adaptive immune responses (2013)

E.D. Hawkins; M.L. Turner; C.J. Wellard; J.H.S. Zhou; M.R. Dowling; P.D. Hodgkin

Springer Nature

In: Nature Communications

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Publikationsdatum: 2013-09-08

Beschreibung: Article B lymphocytes respond to stimulation by proliferating and differentiating. Here the authors quantify and model the responses of B lymphocytes to TLR and CD40-dependent stimulation, and find that the latter induces a more complex response to signals of varying strength. Nature Communications doi: 10.1038/ncomms3406 Authors: E.D. Hawkins, M.L. Turner, C.J. Wellard, J.H.S. Zhou, M.R. Dowling, P.D. Hodgkin

Digitale ISSN: 2041-1723

Thema: Biologie , Chemie und Pharmazie , Allgemeine Naturwissenschaft , Physik

Publiziert von Springer Nature

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Erratum: TRF1 is a stem cell marker and is essential for the generation of induced pluripotent stem cells (2013)

Ralph P. Schneider; Ianire Garrobo; Miguel Foronda; Jose A. Palacios; Rosa M. Marión; Ignacio Flores; Sagrario Ortega; Maria A. Blasco

Springer Nature

In: Nature Communications

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Publikationsdatum: 2013-09-08

Beschreibung: Erratum Nature Communications doi: 10.1038/ncomms3309 Authors: Ralph P. Schneider, Ianire Garrobo, Miguel Foronda, Jose A. Palacios, Rosa M. Marión, Ignacio Flores, Sagrario Ortega, Maria A. Blasco

Digitale ISSN: 2041-1723

Thema: Biologie , Chemie und Pharmazie , Allgemeine Naturwissenschaft , Physik

Publiziert von Springer Nature

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4

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Assessing high-resolution analysis of surface heat fluxes in the gulf stream region (2013)

Xiangze Jin, Lisan Yu

Wiley

In: Journal of Geophysical Research JGR - Oceans

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Publikationsdatum: 2013-09-08

Beschreibung: A satellite-based global analysis of high-resolution (0.25o) ocean surface turbulent latent and sensible heat fluxes was developed by the Objectively Analyzed air-sea Fluxes (OAFlux) project. Resolving air-sea flux down to the order to 0.25o is critical for the description of the air-sea interaction on mesoscale scales. In this study, we evaluate the high-resolution product in depicting air-sea exchange in the eddy-rich Gulf Stream region. Two approaches were used for evaluation, one is point-to-point validation based on six moored buoys in the region, and another is basin-scale analysis in terms of wavenumber spectra and probability density functions (PDFs). An intercomparison is also carried out between OAFlux-0.25o, OAFlux-1o, and four atmospheric reanalyses. Results indicate that OAFlux-0.25 o is able to depict sharp oceanic fronts and has the best performance among the six participating products in comparison with buoy measurements. The mean OAFlux-0.25 o differences in latent and sensible heat flux with respect to the buoy are 7.6 Wm -2 (7.7%) with root-mean-square (RMS) difference of 44.9 Wm -2 , and 0.0 Wm -2 with RMS difference of 19.4 Wm -2 , respectively. Large differences are primarily due to mismatch in SST between gridded data and point measurements when strong spatial gradients are presented. The wavenumber spectra and decorrelation length scale analysis indicate OAFlux-0.25 o depicts eddy variability much better than OAFlux-1 o and the four reanalyses; however, its capability in detecting eddies with smaller scale still needs to be improved. Among the four reanalyses, CFSR stands out as the best in comparison with OAFlux-0.25°.

Print ISSN: 0148-0227

Thema: Geologie und Paläontologie , Physik

Publiziert von Wiley im Namen von American Geophysical Union (AGU).

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5

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Roles of breaking waves and langmuir circulation in the surface boundary layer of a Coastal Ocean (2013)

Shuang Li, Ming Li, Gregory P. Gerbi, Jinbao Song

Wiley

In: Journal of Geophysical Research JGR - Oceans

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Publikationsdatum: 2013-09-08

Beschreibung: Breaking waves and Langmuir circulation are two important turbulent processes in the wind-driven upper ocean. To investigate their roles in generating turbulence in the surface boundary layer of a coastal ocean, a Large Eddy Simulation (LES) model is used to simulate the turbulence measurements collected at the Marthad's Vineyard Coastal Observatoryd's Air-Sea Interaction Tower, during the Coupled Boundary Layers and Air-Sea Transfer (CBLAST) experiment in 2003. The model provides reasonable predictions for the vertical profiles of vertical velocity variance, turbulent kinetic energy (TKE), energy dissipation rates and heat flux. It shows breaking waves dominating turbulence generation near the ocean surface and turbulent large eddies characteristic of Langmuir circulation deeper in the water column. Diagnostic analysis of TKE budget in the model shows a dominant balance between turbulent transport and dissipation near the surface and a dominant balance between shear production and dissipation at deeper depths. Although the Stokes production is a significant term in the TKE budget balance near the surface, it is smaller than shear production. The turbulent transport is large in the near-surface zone and is still significant in the region affected by Langmuir circulation. These results are in agreement with a conclusion inferred from a recent analysis of the near-surface turbulence measurements at the CBLAST site.

Print ISSN: 0148-0227

Thema: Geologie und Paläontologie , Physik

Publiziert von Wiley im Namen von American Geophysical Union (AGU).

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Noble metal nanoclusters and nanoparticles precede mineral formation in magmatic sulphide melts (2013)

Hassan M. Helmy; Chris Ballhaus; Raúl O.C. Fonseca; Richard Wirth; Thorsten Nagel; Marian Tredoux

Springer Nature

In: Nature Communications

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Publikationsdatum: 2013-09-08

Beschreibung: Article It has long been suggested, but never shown, than nanometre-sized particles precede mineral formation in magmatic systems. Here, Helmy et al. demonstrate that platinum and arsenic self-organize to nanoparticle precursors in magmatic liquids before mineral crystallization. Nature Communications doi: 10.1038/ncomms3405 Authors: Hassan M. Helmy, Chris Ballhaus, Raúl O.C. Fonseca, Richard Wirth, Thorsten Nagel, Marian Tredoux

Digitale ISSN: 2041-1723

Thema: Biologie , Chemie und Pharmazie , Allgemeine Naturwissenschaft , Physik

Publiziert von Springer Nature

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7

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High-resolution three-dimensional mapping of mRNA export through the nuclear pore (2013)

Jiong Ma; Zhen Liu; Nicole Michelotti; Sethuramasundaram Pitchiaya; Ram Veerapaneni; John R. Androsavich; Nils G. Walter; Weidong Yang

Springer Nature

In: Nature Communications

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Publikationsdatum: 2013-09-08

Beschreibung: Article Messenger RNAs and their associated proteins are transported from the nucleus through highly selective nuclear pore complexes. Using ultrahigh resolution single-molecule imaging, the authors visualise the path taken by each messenger RNA as it negotiates the pore’s selectivity filter. Nature Communications doi: 10.1038/ncomms3414 Authors: Jiong Ma, Zhen Liu, Nicole Michelotti, Sethuramasundaram Pitchiaya, Ram Veerapaneni, John R. Androsavich, Nils G. Walter, Weidong Yang

Digitale ISSN: 2041-1723

Thema: Biologie , Chemie und Pharmazie , Allgemeine Naturwissenschaft , Physik

Publiziert von Springer Nature

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8

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Identification of a splice variant of mouse TRPA1 that regulates TRPA1 activity (2013)

Yiming Zhou; Yoshiro Suzuki; Kunitoshi Uchida; Makoto Tominaga

Springer Nature

In: Nature Communications

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Publikationsdatum: 2013-09-08

Beschreibung: Article TRPA1 is a transient receptor potential channel family member and is involved in the detection of nociceptive stimuli. Zhou et al. identify an alternative splice variant of TRPA1, which increases TRPA1 plasma expression and channel function, and enhances pain-like behaviour in mice. Nature Communications doi: 10.1038/ncomms3399 Authors: Yiming Zhou, Yoshiro Suzuki, Kunitoshi Uchida, Makoto Tominaga

Digitale ISSN: 2041-1723

Thema: Biologie , Chemie und Pharmazie , Allgemeine Naturwissenschaft , Physik

Publiziert von Springer Nature

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9

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Corrigendum: Delivery of therapeutic agents by nanoparticles made of grapefruit-derived lipids (2013)

Qilong Wang; Xiaoying Zhuang; Jingyao Mu; Zhong-Bin Deng; Hong Jiang; Lifeng Zhang; Xiaoyu Xiang; Baomei Wang; Jun Yan; Donald Miller; Huang-Ge Zhang

Springer Nature

In: Nature Communications

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Publikationsdatum: 2013-09-08

Beschreibung: Corrigendum Nature Communications doi: 10.1038/ncomms3358 Authors: Qilong Wang, Xiaoying Zhuang, Jingyao Mu, Zhong-Bin Deng, Hong Jiang, Lifeng Zhang, Xiaoyu Xiang, Baomei Wang, Jun Yan, Donald Miller, Huang-Ge Zhang

Digitale ISSN: 2041-1723

Thema: Biologie , Chemie und Pharmazie , Allgemeine Naturwissenschaft , Physik

Publiziert von Springer Nature

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10

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In situ observation of filamentary conducting channels in an asymmetric Ta2O5−x/TaO2−x bilayer structure (2013)

Gyeong-Su Park; Young Bae Kim; Seong Yong Park; Xiang Shu Li; Sung Heo; Myoung-Jae Lee; Man Chang; Ji Hwan Kwon; M. Kim; U-In Chung; Regina Dittmann; Rainer Waser; Kinam Kim

Springer Nature

In: Nature Communications

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Publikationsdatum: 2013-09-08

Beschreibung: Article Despite its importance for non-volatile memory, the origin of resistive switching in a metal insulator-metal structure is unclear. Park et al. fabricate such a structure inside a transmission electron microscope to show that switching occurs via oxygen-vacancy migration, which changes the conduction channels. Nature Communications doi: 10.1038/ncomms3382 Authors: Gyeong-Su Park, Young Bae Kim, Seong Yong Park, Xiang Shu Li, Sung Heo, Myoung-Jae Lee, Man Chang, Ji Hwan Kwon, M. Kim, U-In Chung, Regina Dittmann, Rainer Waser, Kinam Kim

Digitale ISSN: 2041-1723

Thema: Biologie , Chemie und Pharmazie , Allgemeine Naturwissenschaft , Physik

Publiziert von Springer Nature

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