44227 research outputs found
Sort by
Correction: Interneuron migration impairment and brain regionspecific DNA damage response following irradiation during early neurogenesis in mice
No full textas long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit h t t p : / / c r e a t i v e c o m m o n s. o r g / l i c e n s e s / b y / 4. 0 /. Publisher's note Springer Nature remains neutral with regard to juris-dictional claims in published maps and institutional affiliations. Correction: Cellular and Molecular Life Sciences (2025) 82:118 h t t p s : / / d o i. o r g / 1 0. 1 0 0 7 / s 0 0 0 1 8-0 2 5-0 5 6 4 3-7 The original article can be found online at h t t p s : / / d o i. o r g / 1 0. 1 0 0 7 / s 0 0 0 1 8-0 2 5-0 5 6 4 3-7. Roel Quinten
Indoor radon and NORM in building materials: Critical analysis of the current European regulation and road map for the next decade
No full textThis position paper deals with the critical analysis of the existing European regulation of indoor radon and NORM in building materials. It represents an opinion of the initiative group of experts created during the Workshop of European NORM Association (ENA) held in Rome, 15-17 May 2024. The main conclusions and propositions of the experts have been also discussed at the round table during the IX Terrestrial Radioisotopes in Environment International Conference on Environmental Protection, 19-22 November 2024, Vonyarcvashegy, Hungary. The current paper lists and discusses several missing points and challenges within the European regulatory system in the field of NORM in building materials and indoor radon, consisting of three interconnecting functional levels: Legislative, Normative, and Methodological. It also serves as a Road Map for the regulatory development in the next decade. Our analysis identifies areas for improvement. While the normative guidance (mid-tier of the hierarchical regulatory pyramid) is robust, the legislative framework has gaps, and methodological support remains underdeveloped with several serious deficiencies. These issues significantly hinder the global implementation of GRPs. To address these gaps, new harmonized standards and guidelines are necessary. It is concluded that enhancing radon and NORM regulations can be achieved by developing and globally implementing several relevant European (international) standards and guidelines within rational ISO/IEC concepts. From a legal-philosophical perspective, these findings are intended as an invitation to dialogue, not merely a critique.The authors are thankful to the participants of the Workshop of European NORM Association (ENA), Rome, 15–17 May 2024, and the IX Terrestrial Radioisotopes in Environment International Conference on Environmental Protection, 19–22 November 2024, Vonyarcvashegy, Hungary. Special thanks are extended to Dr. Govert de With (NRG, Pallas, The Netherlands
Stress ervaring bij jongeren in de derde graad: Hoe kan de school hen hier op een positieve manier mee leren omgaan?
No full textIn dit onderzoek wordt de stress ervaring van jongeren in de derde graad van het secundair onderwijs onderzocht. Het doel is om een duidelijk beeld te krijgen van de factoren die bij jongeren stress veroorzaken en te achterhalen hoe scholen hen op een positieve manier kunnen ondersteunen in het omgaan met deze stress. Waar vaak gedacht wordt dat stress ervaringen deel zijn van het groeien als jongere, tonen de tekorten in de psychologische hulpverlening dat voor veel jongeren deze stress te veel wordt. Bewustwording van de manier waarop leerlingen stress ervaren vormt een eerste stap voor scholen en leerkrachten.
Uit de literatuurstudie blijkt dat stress factoren bij jongeren onderverdeeld kunnen worden in de drie domeinen thuis, vrije tijd en school. Op basis van deze inzichten werd een enquête opgesteld en afgenomen bij 112 leerlingen uit de derde graad, verdeeld over DOD, DGD en D/A studierichtingen. Voor leerkrachten is bijbehorend aan deze paper ook een website ontwikkeld, die een duidelijk overzicht biedt van de bevindingen in het onderzoek, samen met enkele concrete tips. Het doel hierbij is om te zorgen voor meer bewustwording rond het thema stress bij jongeren, zodat scholen een ondersteunende omgeving kunnen vormen
Zijn ons fiscaal strafrecht en strafprocesrecht op een gerechtvaardigde manier georganiseerd ?
No full textAdding Parallelism to Shredded Yannakakis
No full textJoin-operaties zijn een belangrijk deel van query engines, ze laten ons toe om data te combineren vanuit verschillende tabellen. Met dat de datasets die we gebruiken groeien, wordt het belangrijk dat de efficiëntie van deze operatoren meegroeit. Hiervoor bestaan algoritmen als Yannakakis' algoritme die deze berekeningen kunnen versnellen. Recent werk heeft een aangepaste versie van het algoritme gemaakt om het bruikbaar te maken in de praktijk. Om dit mogelijks nog verder te versnellen, kunnen we berekeningen in parallel laten verlopen. Deze thesis heeft als doel om parallellisme te implementeren in de bestaande implementatie van Shredded Yannakakis in Apache DataFusion. Hiervoor werd een exchange operator gemaakt die werkt als meta-operator, hij zal data partitioneren en parallelle werkers opstarten die de partities tegelijk kunnen verwerken. De operator werd dan in de 2-phase NSA plannen die bij Shredded Yannakakis horen verwerkt. Evaluatie van de parallelle runtimes toonde aan dat verticale en horizontale parallellisme aanwezig was via de nieuwe operator, waardoor de meeste runtimes versterkt werden. Het kiezen van het correcte aantal partities om de data in op te splitsen bleek een belangrijke factor te zijn in de efficiëntie van de parallellisatie. Uit deze resultaten kunnen we ook verder bewijzen dat een correcte integratie van parallellisme tijdswinsten kan opbrengen in praktische query engines
A New Analytical Framework to Investigate the Precipitation Kinetics of Discharge Products in Li-S Batteries
No full textPolysulfides are central to the inner workings of lithium-sulfur (Li-S) batteries. They are responsible for the inertia and snowballing effects at play on the dynamics of the battery, among those, the infamous shuttle effect. For this reason, it is very challenging to establish analytical tools for quantitative investigations of Li-S batteries. The need for such analytical tools is particularly crucial when applied to precipitation dynamics, which is a key limiting step to the sulfur utilization and rate performance of the Li-S battery. Here, controlled experimentation is conducted to record the precipitation signatures for micro-electrodes and conventional porous electrodes for Li-S chemistry. It is unraveled how the polysulfide species, involved in the disproportionation reactions, control the peak shape and trends in the chronoamperometric profile of a sulfur electrode. This enables the foundation to be set for a new analytical framework for quantitative characterization of the precipitation mechanism in Li-S batteries.The authors are grateful for financial support from FWO-Vlaanderen. A.C.R. and H.H. are PhD research fellow and junior Postdoc fellow (12A1R24N), respectively, of the Research Foundation Flanders (FWO Vlaanderen). The authors are also grateful for the work and contribution of Hilde Pellears concerning the preparation and measurements of the SEM samples
From stigma to strategy: advancing the conservation and perception of metazoan parasites
No full textParasites play essential roles in ecosystems by facilitating biomass transfer, maintaining food web complexity, regulating host populations, and driving evolutionary processes in other species. Yet, they remain among the least protected by wildlife and ecosystem conservation initiatives with Red Listing of parasites being in its infancy. During a workshop on conservation and Red Listing of parasites organised in 2024 (in Belgium), experts undertook a collaborative effort to establish priorities enabling assessment of metazoan parasites of animals. Applying an adapted version of the Nominal Group Technique, we addressed five themes, including ethics and perceptions. Indeed, recent research provides empirical evidence that emotional responses to different species are key factors influencing people's willingness to support conservation efforts, which makes the human perception of parasites a similarly important aspect. The World Archives of Species Perception (WASP) project represents the most extensive and inclusive scientific effort, to date to address the knowledge gap surrounding public perceptions of biodiversity. Building upon the general WASP project methodology, and inspired by the above-mentioned workshop, we developed a spin-off for human perception of parasites (WASP-P), to understand how different traits of individual species across metazoan parasite taxa are perceived by the public and how this can help facilitate more effective conservation. Preliminary results suggest rich patterns in public perception of different parasite species that warrant deeper investigation. The ongoing efforts will provide valuable insights for the IUCN SSC Parasite Specialist Group and contribute to the development of more effective, targeted strategies for parasite conservation and policy engagement globally
