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  1. Artikel ; Online: Significant variability of structure and predictability of Arctic Ocean surface pathways affects basin-wide connectivity

    Chris Wilson / Yevgeny Aksenov / Stefanie Rynders / Stephen J. Kelly / Thomas Krumpen / Andrew C. Coward

    Communications Earth & Environment, Vol 2, Iss 1, Pp 1-

    2021  Band 10

    Abstract: The Transpolar Drift, which governs the transport of freshwater, nutrients, carbon and contaminants across the Arctic Ocean, varies interannually, and is affected by fine-scale flow structures and processes, according to high-resolution simulations and ... ...

    Abstract The Transpolar Drift, which governs the transport of freshwater, nutrients, carbon and contaminants across the Arctic Ocean, varies interannually, and is affected by fine-scale flow structures and processes, according to high-resolution simulations and satellite data.
    Schlagwörter Geology ; QE1-996.5 ; Environmental sciences ; GE1-350
    Sprache Englisch
    Erscheinungsdatum 2021-08-01T00:00:00Z
    Verlag Nature Portfolio
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  2. Artikel ; Online: Match-play movement and metabolic power demands of elite youth, sub-elite and elite senior Australian footballers.

    Stephen J Kelly / Mark L Watsford / Michael J Rennie / Rob W Spurrs / Damien Austin / Matthew J Pine

    PLoS ONE, Vol 14, Iss 2, p e

    2019  Band 0212047

    Abstract: AIMS:Currently minimal research has quantified physical requirement differences in match-play between youth and senior Australian football players. The aim of the current research was to describe and compare the movement profiles and energy cost of youth, ...

    Abstract AIMS:Currently minimal research has quantified physical requirement differences in match-play between youth and senior Australian football players. The aim of the current research was to describe and compare the movement profiles and energy cost of youth, sub-elite and elite senior Australian football match-play. METHODS:Fifty-seven Australian footballers playing in an elite senior 20, sub-elite senior 16 and elite youth competition 21 participated in this study. Distance, speed based indices and metabolic power measures recording via Global Positioning System (GPS) devices were compared across three competition tiers. Kicks and handballs were collected via a commercial statistics provider (Champion Data) and compared across the competition tiers. RESULTS:Youth players recorded less field time (elite: ES = 1.37/sub-elite: ES = 1.68), total distance (elite: ES = 1.64 /sub-elite: ES = 1.55) and high speed running (elite: ES = 0.90/sub-elite: ES = 0.26) compared to the elite and sub-elite players. The average energy cost of elite (ES = 2.19) and sub-elite (ES = 1.58) match-play was significantly higher that youth match-play. CONCLUSIONS:A progressive increase regarding physical demands was evident across AF competition tiers. The findings suggest that sub-elite match-play can provide a viable pathway for youth players to develop physical capacity and technical skills before transitioning to elite senior match-play.
    Schlagwörter Medicine ; R ; Science ; Q
    Thema/Rubrik (Code) 796 ; 360
    Sprache Englisch
    Erscheinungsdatum 2019-01-01T00:00:00Z
    Verlag Public Library of Science (PLoS)
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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