TROLLing: Scope and operation of an open repository for linguistic datasets

Poster: TROLLing (opendata.uit.no) is an international archive for open linguistic data and statistical code (e.g. R scripts), launched in 2014 at UiT The Arctic University of Norway. With the increasing demand for archiving and sharing research data, as well as the problem of improper attribution, TROLLing aims to meet researchers’ needs by proposing safe storage of data files, and metadata templates based on international standards. Retrieval, sharing, and reuse of data is further facilitated by TROLLing being part of a global open data network. As regards attribution, the system automatically provides a dataset citation, comprising among other things the author name(s) and a persistent identifier (doi). A version control allows researchers to update their datasets at any time, previously published versions still being available open access. TROLLing is available to all subfields of linguistics, but is limited to structural data. The metadata template, however, allows linking to primary data, stored elsewhere.TROLLing (opendata.uit.no) is an international archive for open linguistic data and statistical code (e.g. R scripts), launched in 2014 at UiT The Arctic University of Norway. With the increasing demand for archiving and sharing research data, as well as the problem of improper attribution, TROLLing aims to meet researchers’ needs by proposing safe storage of data files, and metadata templates based on international standards. Retrieval, sharing, and reuse of data is further facilitated by TROLLing being part of a global open data network. As regards attribution, the system automatically provides a dataset citation, comprising among other things the author name(s) and a persistent identifier (doi). A version control allows researchers to update their datasets at any time, previously published versions still being available open access. TROLLing is available to all subfields of linguistics, but is limited to structural data. The metadata template, however, allows linking to primary data, stored elsewhere.This material is based upon work supported by the National Science Foundation under grant SMA-1447886

Constraints on a Parity-Conserving/Time-Reversal-Non-Conserving Interaction

Time-Reversal-Invariance non-conservation has now been unequivocally demonstrated in a direct measurement at CPLEAR. What about tests of time-reversal-invariance in systems other than the kaon system? Tests of time-reversal-invariance belong to two classes: searches for parity violating (P-odd)/time-reversal-invariance-odd (T-odd) interactions, and for P-even/T-odd interactions (assuming CPT conservation this implies C-conjugation non-conservation). Limits on a P-odd/T-odd interaction follow from measurements of the electric dipole moment of the neutron (with a present upper limit of 6 x 10^-26 e.cm [95% C.L.]). It provides a limit on a P-odd/T-odd pion-nucleon coupling constant which is less than 10^-4 times the weak interaction strength. Experimental limits on a P-even/T-odd interaction are much less stringent. Following the standard approach of describing the nucleon-nucleon interaction in terms of meson exchanges, it can be shown that only charged rho-meson exchange and A_1 meson exchange can lead to a P-even/T-odd interaction. The better constraints stem from measurements of the electric dipole moment of the neutron and from measurements of charge-symmetry breaking in neutron-proton elastic scattering. The latter experiments were executed at TRIUMF (497 and 347 MeV) and at IUCF (183 MeV). Weak decay experiments may provide limits which will possibly be comparable. All other experiments, like gamma decay experiments, detailed balance experiments, polarization - analyzing power difference determinations, and five-fold correlation experiments with polarized incident nucleons and aligned nuclear targets, have been shown to be at least an order of magnitude less sensitive.Comment: 15 pages LaTeX, including 5 PostScript figures. Uses ijmpe1.sty. To appear in International Journal of Modern Physics E (IJMPE). Slight change in short abstrac

Repository Experiences on Certification: DataverseNO

Presentation at the online EOSC-Nordic WP4 workshop: From Self-Assessment to Certification with FAIR Results, 03.06.21, arranged by EOSC-Nordic. https://www.eosc-nordic.eu/events/eosc-nordic-wp4-workshop-from-self-assessment-to-certification-with-fair-results/. This presentation gives a short introduction to the work done by DataverseNO to obtain CoreTrustSeal certification

Data Commons from a Library Perspective

Presentation at the online Data Commons Workshop, 23.10.20, arranged by Harvard University

DataverseNO: Building a national research data management support service based on the Dataverse software

Presentation at the online workshop "Training Webinar for DataverseCAT Repositories", 18.05. - 19.05.2021, arranged by Consorci de Serveis Universitaris de Catalunya (CSUC): https://www.csuc.cat/en.||||| Course objective: This course will familiarize participants with the Dataverse repository software, and give an introduction to how DataverseNO has established and provides a national research data management (RDM) support service based on the Dataverse software. Participants will be enabled to apply the provided information to their own work context. ||||| Methodology: The course will combine several short presentations of the main features of the DataverseNO repository and RDM support services with subsequent practical sessions where participants will be encouraged to interact with others in group tasks to discuss and apply the information from the presentations within the context of the Catalan Dataverse repository and associated RDM support services

Chemotherapy response assessment in stage IV melanoma patients—comparison of 18F-FDG-PET/CT, CT, brain MRI, and tumormarker S-100B

Purpose: This study aims to compare the use of 18F-FDG-PET/CT, CT, brain MRI, and tumormarker S-100B in chemotherapy response assessment of stage IV melanoma patients. Methods: In 25 patients with stage IV melanoma, FDG-PET/CT and S-100B after 2-3months (three cycles) of chemotherapy was compared with baseline PET/CT and baseline S-100B. Retrospectively, the response was correlated with the outcome. In patients with clinical suspicion for brain metastases, MRI or CCT was performed. Results: There was agreement between FDG-PET/CT and CT regarding response to chemotherapy in all patients. There was a clear trend to a longer OS of PET/CT responders (n = 10) compared with PET/CT non-responders (n = 15; p = 0.072) with remarkably better 1-year OS of 80% compared to 40% (p = 0.048). There was a significant longer PFS of PET/CT responders compared with PET/CT non-responders (p = 0.002). S-100B was normal at baseline in eight of 22 patients where it was available. Chemotherapy response assessment with S-100B failed to show correlation with OS or PFS. Eleven patients developed brain metastases during treatment, first detected by PET/CT in two and by MRI or CCT in nine of 11 patients. Appearance of brain metastases was associated with a poor survival. Conclusions: 18F-FDG-PET/CT and CT alone are equally suitable for chemotherapy response assessment in melanoma patients and clearly superior to S-100B. PET/CT responders have better early survival, but this is shortlived due to late therapy failure—often with brain recurrence. Additional brain MRI for therapy response assessment in such high-risk patients is mandatory to detect brain metastases missed by PET/C

CoreTrustSeal Certification of DataverseNO

Presentation at EOSC FAIR metrics and Data Quality Task Force Meeting, online, 10 March 2022.This presentation provides a short overview of the CoreTrustSeal certification of DataverseNO. The presentation is organized into the following sections: 1. Key facts about DataverseNO 2. CoreTrustSeal certification of DataverseNO - Motivation - Challenges and approaches - Where to get hel