1,720,982 research outputs found
Unlocking the Power of Mineral Data in Global Geochemical Databases
No full textNovel methods of data analysis have led to numerous innovations in mineralogical research in recent years, requiring increasingly larger precompiled datasets. Whilst dedicated, high-quality expert compilations are invaluable for addressing specific research questions, comprehensive and curated global databases, such as GEOROC and PetDB, are essential for realising the full scientific potential of mineralogical data.
Since the late 90s, the GEOROC and PetDB databases have collated, archived and curated over a century’s worth of geochemical analyses of natural minerals. The databases currently contain 17,531,666 and 2,664,189 individual mineral data values, respectively, which makes up over half of their total data holdings. These data are compiled together with carefully selected metadata that capture the diversity of mineral geochemical data, while also enabling targeted data quality assessment.
To continue to obtain new insights from the accumulated data collected by mineralogists worldwide, our community needs to come together to ensure the continued improvement and sustainability of such curated databases
Overcoming Fragmentation of Geochemical Data Resources: Collaboration between EarthChem, Astromat, GEOROC, and MetBase
No full textGlobal geochemical datasets are increasingly valuable for solving research questions in geochemistry, volcanology and beyond. To support new research, open sharing and access of geochemical data needs to be easy for researchers so they can take full advantage of the rapidly growing volume of data generated in laboratories across the globe, and to comply with the principles of Open Science. Instead, the fragmented landscape of geochemical data systems makes it difficult for researchers to find, access, and contribute their data: Geochemical data are curated and published in a range of thematic, institutional, and programmatic data systems that differ in architecture, metadata schemas, terminology, and data output formats. Researchers have to figure out where to obtain the data they need; learn to use different search applications; retrieve data from multiple databases and painstakingly reformat the datasets they obtained from different systems to integrate them. They need to select an appropriate repository for their data, and potentially work with different submission systems and templates. Collaboration among geochemical data systems is a critical step to overcome this fragmentation and facilitate geochemical data management and access for the research community by coordinating, aligning, and integrating their systems. Through collaboration, data repositories and databases can also leverage each other’s expertise and resources to operate their services more effectively and efficiently.
We here report about new collaborative efforts among four geochemical data systems that aim to harmonize and integrate their data holdings and software ecosystem for the benefit of the research community and to improve their sustainability: EarthChem (https://earthchem.org/), GEOROC (https://georoc.eu/), MetBase (https://metbase.org/), and the Astromaterials Data System (https://www.astromat.org/). Building on the long-term collaboration between EarthChem and GEOROC, this collaboration leverages the new development of the Astromaterials Data System with modern technology and two new projects funded to overhaul the infrastructure of the GEOROC and MetBase databases as an opportunity to jointly develop a more resilient, sustainable platform for data exchange. Results of the collaboration so far include: a) alignment of the Astronaut and MetBase data models b) migration of the MetBase data holdings into the Astromat synthesis database; c) alignment of the EarthChem and GEOROC data models; d) new automated synchronization process of GEOROC data to the ECP; e) harmonized vocabularies for chemical variables, analytical methods (Others are in development in alignment with emerging efforts of the OneGeochemstry initiative); f) design of the future shared architecture of EarthChem and GEOROC that includes plans for a joint data entry tool for curators and a single data submission platform for researchers to contribute their data to the affiliated domain repositories.
The ultimate goal of this harmonization between EarthChem, Astromat, GEOROC and MetBase is to make it easier for researchers to access and contribute data. We hope to integrate further systems in the future, building on ongoing collaborations with the Australian Geochemistry Network, the US Geological Survey, SAMIS (Sample Analysis Microinformation System), the GFZ Data Services, and the Sparrow software
Synchronizing GEOROC and EarthChem towards Global Geochemical Data Exchange
No full textGEOROC and EarthChem provide services for open data publication, archiving, and interactive access of geochemical and isotopic data of igneous and metamorphic rocks, minerals and inclusions. The two data providers have collaborated since the early 2000s to deliver consistent and complementary data to the geochemistry community. Curation work for PetDB and GEOROC relies on a strong foundation of consultation with the broader geochemical community, to establish which dataset quality related metadata needs to be included to provide end-users with truly reusable datasets. Data exchange is currently implemented through the EarthChem Portal (ECP). The ECP was developed as a global open data service to the geochemical, petrological, mineralogical, and related communities. It provides a single point of access to >45 million analytical values for >1 million samples, aggregated from independently operated databases (PetDB, NAVDAT, GEOROC, USGS, MetPetDB, DARWIN).
In an effort to improve the FAIRness of their data services and the interoperability of their data systems, a new suite of API-driven architecture is being developed by both systems. EarthChem and DIGIS (Digital Geochemical Data Infrastructure initiative for GEOROC 2.0) have committed to cooperation on system architecture design, data models, data curation, methodologies, best practices and standards for their geochemical data infrastructures. This effort will include working towards harmonized vocabularies for the core database concepts as well as dataset quality information.
These common vocabularies are being developed as part of the Observations Data Model 2 (ODM2) ecosystem. Versioning of the vocabularies will ensure dynamic response to evolving community requirements. This will allow for versatility for expansions to other data types, after more rounds of community consultations to determine best practices. The vocabularies further build on established concepts from other communities, such as mineralogy and chemistry.
These common vocabularies developed between EarthChem and DIGIS will be the foundation of future seamless API-driven data exchange that can act as a prototype for the distributed data framework envisioned by OneGeochemistry
OneGeochemistry Interim Governance
No full textOneGeochemistry is an international collaboration between multiple national and international organisations that support geochemistry capability and data production. This document describes the interim governance of OneGeochemistry that will be valid until the network is formally constituted (planned for mid 2024)
Unlocking the Power of Mineral Data in Global Geochemical Databases
No full textNovel methods of data analysis have led to numerous innovations in mineralogical research in recent years, requiring increasingly larger precompiled datasets. Whilst dedicated, high-quality expert compilations are invaluable for addressing specific research questions, comprehensive and curated global databases, such as GEOROC and PetDB, are essential for realising the full scientific potential of mineralogical data.
Since the late 90s, the GEOROC and PetDB databases have collated, archived and curated over a century’s worth of geochemical analyses of natural minerals. The databases currently contain 17,531,666 and 2,664,189 individual mineral data values, respectively, which makes up over half of their total data holdings. These data are compiled together with carefully selected metadata that capture the diversity of mineral geochemical data, while also enabling targeted data quality assessment.
To continue to obtain new insights from the accumulated data collected by mineralogists worldwide, our community needs to come together to ensure the continued improvement and sustainability of such curated databases
Introducing OneGeochemistry, landscape of data resources and standards: showcases growing list of publications on data reporting standards etc
No full textThis presentation was part of the Goldschmidt 2022 workshop <em>“Earth Science meets Data Science: what are our needs for geochemical data, services and analytical capabilities in the 21st century?. </em>It covers uses for geochemical data; the need for FAIR standards for geochemical data; the history of developing geochemistry standards so far; equivalent initiatives in climate, seismology, crystallography and pure and applied chemistry; proposed methods to develop the required standards through 'expert' communities; and an introduction to the CODATA-led WorldFAIR project<strong>: </strong>Global cooperation on FAIR data policy and practice
Synchronizing GEOROC and EarthChem towards Global Geochemical Data Exchange
No full textGEOROC and EarthChem provide services for open data publication, archiving, and interactive access of geochemical and isotopic data of igneous and metamorphic rocks, minerals and inclusions. The two data providers have collaborated since the early 2000s to deliver consistent and complementary data to the geochemistry community. Curation work for PetDB and GEOROC relies on a strong foundation of consultation with the broader geochemical community, to establish which dataset quality related metadata needs to be included to provide end-users with truly reusable datasets. Data exchange is currently implemented through the EarthChem Portal (ECP). The ECP was developed as a global open data service to the geochemical, petrological, mineralogical, and related communities. It provides a single point of access to >45 million analytical values for >1 million samples, aggregated from independently operated databases (PetDB, NAVDAT, GEOROC, USGS, MetPetDB, DARWIN).
In an effort to improve the FAIRness of their data services and the interoperability of their data systems, a new suite of API-driven architecture is being developed by both systems. EarthChem and DIGIS (Digital Geochemical Data Infrastructure initiative for GEOROC 2.0) have committed to cooperation on system architecture design, data models, data curation, methodologies, best practices and standards for their geochemical data infrastructures. This effort will include working towards harmonized vocabularies for the core database concepts as well as dataset quality information.
These common vocabularies are being developed as part of the Observations Data Model 2 (ODM2) ecosystem. Versioning of the vocabularies will ensure dynamic response to evolving community requirements. This will allow for versatility for expansions to other data types, after more rounds of community consultations to determine best practices. The vocabularies further build on established concepts from other communities, such as mineralogy and chemistry.
These common vocabularies developed between EarthChem and DIGIS will be the foundation of future seamless API-driven data exchange that can act as a prototype for the distributed data framework envisioned by OneGeochemistry
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
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