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  • 1
    Keywords: Forschungsbericht ; Forschungsdaten ; Lehre ; Curriculum
    Type of Medium: Online Resource
    Pages: 1 Online-Ressource (42 Seiten, 1,99 MB) , Illustrationen, Diagramme
    Language: German
    Note: Paralleltitel dem englischen Berichtsblatt entnommen , Förderkennzeichen BMBF 16FDM025 , Unterschiede zwischen dem gedruckten Dokument und der elektronischen Ressource können nicht ausgeschlossen werden , Sprache der Zusammenfassung: Deutsch, Englisch
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  • 2
    Keywords: Forschungsbericht ; Flachwasser ; Hydrothermalgebiet ; Versauerung
    Type of Medium: Online Resource
    Pages: 1 Online-Ressource (63 Seiten, 23,34 MB) , Illustrationen, Diagramme
    Language: German
    Note: Förderkennzeichen BMBF 03F0784A , Unterschiede zwischen dem gedruckten Dokument und der elektronischen Ressource können nicht ausgeschlossen werden
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  • 3
    Publication Date: 2024-06-07
    Type: Conference or Workshop Item , NonPeerReviewed
    Format: text
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  • 4
    Publication Date: 2023-02-23
    Description: Annotation of research data with rich metadata is important to make that data findable, accessible, interoperable, and reusable (Wilkinson et al. [2016]). This ensures the conducted research data is durable. Within the Helmholtz Association, the Helmholtz Metadata Collaboration (HMC) coordinates the mission to enrich Helmholtz-based research data with metadata by providing (information about) technical solutions, advice and ensuring uniform scientific standards for the use of metadata. In 2021, HMC conducted its first community survey to align its services with the needs of Helmholtz researchers. A question catalogue with 49 (sub-)questions was designed and disseminated among researchers in all six Helmholtz research fields. The conditional succession of the questions was aligned with predetermined expertise levels ("no prior knowledge", "intermediate prior knowledge", "high level of prior knowledge"). 631 completed survey replies were obtained for analysis. The HMC Community Survey 2021 provides insight into the management of research data as well as the data publication practices of researchers in the Helmholtz Association. The characterization of research-field-dependent communities will enable HMC to further develop targeted, community-directed support for the documentation of research data with metadata.
    Type: Report , NonPeerReviewed
    Format: text
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  • 5
    Publication Date: 2024-02-07
    Description: Highlights • Silicoflagellates include ten Cenozoic genera, starting with Corbisema. • Rotated apical structures begin with Dictyocha byronalis in early Eocene. • Neogene rotation of Dictyocha apical bridge is an independent evolution. • Multi-windowed Stephanopsis are common from early Oligocene. • Paramesocena develops from Stephanopsis and is a possible ancestor of Octactis. Cenozoic silicoflagellate evolution led to ten known genera derived from two groups classified together in Corbisema that may have survived the end-Cretaceous extinction. These underwent rapid diversification and gave rise to at least five genera before the end of the Paleocene, including Dictyocha and Naviculopsis. Important silicoflagellate evolutionary events include the emergence of corner-aligned double skeleton configuration by the early Paleocene and the sinistral rotation of the Dictyocha byronalis apical bridge in early to middle Eocene that evolved into the apically-ringed silicoflagellate genera (e.g., Distephanopsis and Stephanocha). We interpret Paramesocena and Octactis as descended from Stephanocha, although their precise evolutionary paths remain uncertain. The earliest Octactis has thicker apical ring elements than modern O. pulchra, and is here described as the new species O. kosciuszkoi. New combinations are provided for Stephanocha antarctica and Dityocha octangulata. Overall, Cenozoic silicoflagellates show a trend towards more complicated apical geometries and smaller portals. These features enable silicoflagellate double skeletons to form near-spherical skeletal structures that support the external cell boundaries during mitosis. Silicoflagellates employ various strategies to hold double skeletons together and support the cell boundaries across the portal and window openings. Variability is an important feature of the silicoflagellate skeleton and occurs in two broadly different contexts. The first occurs for all silicoflagellate species, with occasional variant skeletal designs distinct from the predominant morphology. The second variability is associated with a single taxon, where multiple unusual skeletal shapes occur in a silicoflagellate plexus over a geologically narrow time interval and limited geographic extent.
    Type: Article , PeerReviewed
    Format: text
    Format: archive
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  • 6
    Publication Date: 2024-02-07
    Description: Highlights: • Silicoflagellates more common and diverse in late Eocene, lower in Oligocene. • Record of new species Corbisema tajmahalii from Late Eocene, with interpreted double skeleton (DS). • First known Bachmannocena DS, has corner-aligned configuration. • Observation of early evolution of Stephanocha raupii, transferred to Distephanopsis. Abstract Study of the South Pacific Ocean sediments from IODP Expedition 378, Holes U1553A and U1553B, shows 19 late Eocene to late Oligocene silicoflagellate species. The late Eocene includes Corbisema tajmahalii n. sp., observed over a ∼ 8.4 m interval and proposed as a new subzone within the Corbisema apiculata Zone. The new species is characterized by the presence of basal ring that has three sides and an arrowhead-shaped outline with the two minor-axis corners more closely spaced. This study has found the first known Bachmannocena double skeleton, in corner-aligned configuration that suggests evolutionary relationship with the Corbisema triacantha group of Cenozoic silicoflagellates. Also observed is the apparent early evolution of Stephanocha raupii at ∼29.6 Ma, derived from a skeletal diversity related to Distephanopsis crux, thus the species is here transferred to Distephanopsis (abbreviated as Ds.). Silicoflagellate skeletal abundance declines after the Eocene-Oligocene boundary, with generally low abundance except for two sediment samples immediately below the Ds. raupii n. comb. first appearance.
    Type: Article , PeerReviewed
    Format: text
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  • 7
    Publication Date: 2023-05-10
    Description: Die Anschlussfähigkeit bestehender Helmholtz-Dateninfrastrukturen an nationale und internationale Initiativen (z.B. NFDI, EOSC und andere), ist ein wichtiges zentren-übergreifendes Ziel der Helmholtz-Gemeinschaft. Dafür ist es entscheidend, die bestehenden Zusammenhänge der Forschungsdaten-erhebenden und -nachnutzenden sowie die Dateninfrastrukturen (DIS) entlang der FAIR-Prinzipien1 zu ordnen. Ziel dieser Erhebung ist es, einen Überblick über bestehende Praktiken und Entwicklungs-stände der Dateninfrastrukturen (DIS) in der Helmholtz Gemeinschaft im Bereich Erde und Umwelt zu erhalten, um eine konsistente Strategie zur Umsetzung eines FAIRen Datenraumes entwickeln zu können. Es stellt sich heraus, dass, den DIS die FAIR-Prinzipien bekannt sind, sie sich mehrheitlich dazu bekennen und bestrebt sind, diese bestmöglich umzusetzen. Dabei wählen sie zum Teil sehr unterschiedliche Umsetzungsstrategien und treffen auf unterschiedliche Herausforderungen und Hindernisse. Dabei wird deutlich, dass die Schwierigkeiten in der Umsetzung mit der Tiefe und organisatorischen Komplexität bei der Implementierung der FAIR-Prinzipien zunehmen. Während beispielsweise einige Kriterien zur Auffindbarkeit (Findability) und Zugriffsmöglichkeit (Accessability) bereits bei vielen DIS z.B. durch den Einsatz von DOIs und Metadatenstandards erfüllt sind, ist es offensichtlich schwieriger, die Interoperabilität (Interoperabilty) und Nachnutzbarkeit (Reusability) der Daten umzusetzen. Der HMC Hub Erde und Umwelt (EuU) kann aus der Erhebung für den Forschungsbereich EuU eine Reihe von Empfehlungen ableiten. Dazu gehört unter anderem die Notwendigkeit eines einheitlichen Verständnisses von FAIR. Innerhalb des Forschungsdatenmanagements (FDM) sollte der Fokus insbesondere auf eine einheitliche Umsetzung persistenter Identifier (PIDs) / Handles, FAIR Digital Objekts (FDOs), semantischer Konzepte und Provenienz gerichtet werden, weil deren Einsatz wichtige Bausteine für die Umsetzung der FAIR-Prinzipien sind. Infolgedessen könnte die Rolle von HMC sein, den einheitlichen Umgang mit Forschungsdaten innerhalb der Helmholtz-Gemeinschaft zu moderieren und zu koordinieren. Dadurch würden Prozesse zu etabliert die es erlauben, dass alle erhobenen Daten in den verschiedenen Forschungsbereichen gefunden, verwendet und einheitlich referenziert werden können. Langfristig gilt es einen Community Co-Design Prozess zu etablieren, der es erlaubt, möglichst konkrete, gemeinschaftlich getragene Vereinbarungen zum Datenaustausch zu treffen und diese in Helmholtz Empfehlungen zum Umgang mit Forschungsdaten, also Policies, umzusetzen. Dadurch würde ein für alle nachvollziehbarer, interoperabler Helmholtz Datenraum geschaffen.
    Type: Report , NonPeerReviewed
    Format: text
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    Format: other
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