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  • Authors: Vlastimil Krivan;
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    Data supplement for the landscape connectivity study between Iron Age settlements (LT B-LT D) in Křivoklát Protected Landscape Area with focus on site of Nižbor (exact quotation of the paper will be added after its official publishing – Venclová, N. –Dreslerová, D. – Kyselý, R. – Dyčka, M. – Šebesta, J. – Pachnerová Brabcová, K. – Bíšková, J. – Matoušek, V. 2024: Paths to this and the next world: A La Tène sunken hut from Nižbor, Central Bohemia. Archeologické rozhledy 76, 329-358). The study is based on the analysis called Cumulative Focal Mobility Network (CFMN), which has been perfected for more than a decade. This method calculates directional-less movement in the artificial environment from a multitude of source points (grid of 256 equally spaced points in a 50 km radius around Nižbor) by means of the interpretation of slope model using hydrological tools (Fábrega-Álvarez 2006; Murrieta-Flores 2012). The resulting x-number of models, representing the most convenient paths to the selection of points, are then merged and analysed with the Density tool to find the highest number of overlaps (for the syntax, see Fig. 14). In practice, these are the corridors for the most convenient movement throughout the landscape (Bellavia 2001; Verhagen 2010; Déderix 2016). In other words, the analysis can be described as an ideal model of connectivity and accessibility of various locations in the terrain and of optimal pathways – natural corridors of movement – leading across the entire landscape (Verhagen et al. 2013; Stančo – Pažout 2020). The 5th generation Digital Terrain Model of the Czech Republic (DMR 5G) was used for the analysis. It was reclassified to an 8 m cell size and cleared of modern infrastructure developments (Novák et al. 2022). It was combined with the Model of Potential Floodplains in the Czech Republic (Novák 2017), which served as a further buffer for the movement. All analyses were calculated in ArcMap 10.8 software. To reconstruct the position of the studied site in the LT B–LT ­D period in a broader sense, the settlement pattern should be considered within the Křivoklát Protected Landscape Area and its surroundings (principally Beroun, Kladno, Praha-západ and Rakovník districts in Central Bohemia). An overview of La Tène sites was recently presented (Dreslerová et al. 2022) based on current archaeological records (AMCR database). Hence, in a 50 km radius around Nižbor, 344 positive confirmations of human activity can be found between LT B and LT D. For the needs of this study, the site location was refined by merging the immediately neighbouring ones into clusters, which are further treated as one site with positive confirmation of occupation in LT B­–LT D. A total of 149 sites were thus studied in relation to Nižbor. Sources: AMCR database: Archaeological Map of the Czech Republic. Available at: https://digiarchiv.aiscr.cz/ [accessed 01-01-2022]. Bellavia, G. 2001: Extracting "Natural Pathways" from a Digital Elevation Model. Applications to Landscape Archaeological Studies. In: G. Burenhult – J. Arvidsson (eds.), Archaeological Informatics: Pushing The Envelope. Proceedings of the CAA 2001. Oxford: Archaeopress, 5–12. Déderix, S. 2016: Travelling Across Archaeological Landscapes: the Contribution of Hierarchical Communication Networks. In: S. Campana et al. (eds.), Keep the revolution going. Proceedings of the 43rd Annual Conference of Computer Applications and Quantitative Methods in Archaeology, CAA 2015. Oxford: Archaeopress, 555–565. Dreslerová, D. – Venclová, N. – Demján, P. – Kyselý, R. – Matoušek, V. 2022: Did they leave or not? A critical perspective on the beginnings of the La Tène period in Bohemia. Archeologické rozhledy 74, 505–537. https://doi.org/10.35686/AR.2022.24 Fábrega-Álvarez, P. 2006: Moving without destination. A theoretical GIS-based determination of movement from a giving origin. Archaeological Computing Newsletter 64, 7–11. Murrieta-Flores, P. 2012: Understanding human movement through spatial technologies. The role of natural areas of transit in the Late Prehistory of south-western Iberia. Trabajos de Prehistoria 69, 103–122. Novák D. 2017: GIS data - Model potenciálních rozlivových zón na území ČR | GIS data - Model of Potential Floodplains in the Czech Republic. Zenodo. doi: 10.5281/zenodo.3367357. Novák D. – Pružinec F. – Lieskovský T. 2022: The Potential and Implications of Automated Pre-Processing of Lidar-Based Digital Elevation Models for Large-Scale Archaeological Landscape Analysis. Slovak Journal of Civil Engineering 30, 4. http://dx.doi.org/10.2139/ssrn.4063514 Stančo, L. – Pažout, A. 2020: Which way to Roxane: Mobility networks in the heartland of Central Asia. Journal of Archaeological Science: Reports 32, 102391. https://doi.org/10.1016/j.jasrep.2020.102391 Verhagen, P. 2010: On the Road to Nowhere? Least Cost Paths, Accessibility and the Predictive Modelling Perspective. In: F. Contreras – M. Farjas – F. J. Melero (eds.), Proceedings of the 38th Annual Conference on Computer Applications and Quantitative Methods in Archaeology, CAA 2010. Oxford: Archaeopress, 383–390. Verhagen, P. – Brughmans, T. – Nuninger, L. – Bertoncello, F. 2013: The Long and Winding Road: Combining Least Cost Paths and Network Analysis Techniques for Settlement Location Analysis and Predictive Modelling. In: E. Graeme (ed.), Archaeology in the Digital Era. Papers from the 40th Annual Conference of Computer Applications and Quantitative Methods in Archaeology (CAA), Southampton, 26-29 March 2012. Amsterdam: Amsterdam University Press, 357–366.

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    ZENODO
    Dataset . 2024
    License: CC BY
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    ZENODO
    Dataset . 2024
    License: CC BY
    Data sources: Datacite
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      ZENODO
      Dataset . 2024
      License: CC BY
      Data sources: ZENODO
      ZENODO
      Dataset . 2024
      License: CC BY
      Data sources: Datacite
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  • Authors: Schuldt, Kenneth N.; Aalto, Tuula; Arlyn Andrews; Aoki, Shuji; +162 Authors

    This product is constructed using the Observation Package (ObsPack) framework [Masarie et al., 2014; www.earth-syst-sci-data.net/6/375/2014/]. The framework is designed to bring together atmospheric greenhouse gas (GHG) observations from a variety of sampling platforms, prepare them with specific applications in mind, and package and distribute them in a self-consistent and well-documented product. ObsPack products are intended to support GHG budget studies and represent a new generation of cooperative value-added GHG data products. This product includes 429 atmospheric methane datasets derived from observations made by 54 laboratories from 22 countries. Data for the period 1983-2021 (where available) are included.

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  • Authors: Vlastimil Krivan; Ludek Berec;
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    Authors: Li, Yan-Da; Kundrata, Robin; Tihelka, Erik; Liu, Zhenhua; +2 Authors

    Bioluminescent beetles of the superfamily Elateroidea (fireflies, fire beetles, glow-worms) are the most speciose group of terrestrial light-producing animals. The evolution of bioluminescence in elateroids is associated with unusual morphological modifications, such as soft-bodiedness and neoteny, but the fragmentary nature of the fossil record discloses little about the origin of these adaptations. We report the discovery of a new bioluminescent elateroid beetle family from the mid-Cretaceous of northern Myanmar (ca. 99 Ma), Cretophengodidae fam. nov. Cretophengodes azari gen. et sp. nov. belongs to the bioluminescent lampyroid clade, and represents a transitional fossil linking the soft-bodied Phengodidae + Rhagophthalmidae clade and hard-bodied elateroids. The fossil male possesses a light organ on the abdomen which presumably served a defensive function, documenting a Cretaceous radiation of bioluminescent beetles coinciding with the diversification of major insectivore groups such as frogs and stem-group birds. The discovery adds a key branch to the elateroid tree of life and sheds light on the timing of the evolution of soft-bodiedness and historical biogeography of elateroid beetles. The Burmese amber specimen studied here originates from amber mines near the Noije Bum Hill (26°20' N, 96°36' E), Hukawng Valley, Kachin State, northern Myanmar. The specimen is deposited in the Nanjing Institute of Geology and Palaeontology (NIGP), Chinese Academy of Sciences, Nanjing, China. The amber piece was trimmed with a small table saw, ground with emery papers of different grain sizes, and finally polished with polishing powder. Photographs under incident light were taken with a Zeiss Discovery V20 stereo microscope. Widefield fluorescence images were captured with a Zeiss Axio Imager 2 light microscope combined with a fluorescence imaging system. Confocal images were obtained with a Zeiss LSM710 confocal laser scanning microscope. Images under incident light and widefield fluorescence were stacked in Helicon Focus 7.0.2 or Zerene Stacker 1.04. Confocal images were manually stacked in Adobe Photoshop CC. Images were further processed in Adobe Photoshop CC to enhance contrast. 

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    DRYAD; ZENODO
    Dataset . 2020
    License: CC 0
    Data sources: Datacite; ZENODO
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      DRYAD; ZENODO
      Dataset . 2020
      License: CC 0
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  • Authors: International Conference on Autonomous Agents and Multi-Agent Systems 2021; Bredereck, Robert; Figiel, Aleksander; Kaczmarczyk, Andrzej; +2 Authors

    Read the paper: http://www.ifaamas.org/Proceedings/aamas2021/pdfs/p260.pdf Chat about this paper on Discord: https://discord.com/channels/827790531085336607/833013847086333992 Discord is intended for in-depth chat with authors, independently from the AAMAS schedule. Please post any questions to the authors you would like them to address during the live Q&A right here on Underline. Watch the video on SlidesLive: https://slideslive.com/38954920/highmultiplicityfairallocationmademore-robertbredereck-aleksanderfigiel-38954920-0nNX.mp4 Abstract: The envy-free, Pareto-efficient allocation of indivisible goods leads to computationally hard problems. There is a big variety of modeling issues, such as agent-specific utility functions or (high numbers of) different types of goods. In recent work, Bredereck et al. [ACM EC~2019] addressed this topic by showing (theoretical) fixed-parameter tractability results for "high-multiplicity fair allocation", exploiting parameters such as number of agents or maximum absolute utility values. To this end, they used a number of tools from (theoretical) integer linear programming. We "engineer" their work towards practical usefulness, thereby being able to solve all real-world instances from the state-of-art online platform "spliddit.org for provably fair solutions". Besides providing the foundations for a fast tool for fair allocations, we also offer a flexible framework with the possibility to relax fairness or efficiency demands so to, e.g., allow tradeoffs between fairness and social welfare. Moreover, our framework provides ways to interpret and explain "solution paths" which makes it possible to perform further explorations in cases when no envy-free and efficient allocations exist.

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    Authors: Moravec, Jiří; Brzoska, David; Vybíral, Jan;

    FIGURES 40–49. Physodeutera (Microlepidia) peyrierasi Rivalier. 40—habitus, ♁, 10.3 mm, Mahamasina (CCJM); 41— part of head, type locality Ankarana (CCJM ex APCA); 42–44—labrum: 42—♁, type locality (CCJM ex APCA); 43—♁, Mahamasina (CCJM); 44—♀, ibid.; 45—pronotum, ♁, ibid.; 46—aedeagus showing internal sac, type locality (CCJM ex APCA); 47–49—elytron: 47—♁, type locality (CCJM ex APCA); 48—♁, Mahamasina (CCJM); 49—♁, ibid. (CCJM). Bars = 1 mm. Published as part of Moravec, Jiří, Brzoska, David & Vybíral, Jan, 2021, New or rare Madagascar tiger beetles-21. Physodeutera (Microlepidia) propripenis sp. nov., Ph. (M.) marginemaculata (W. Horn) and Ph. (M.) peyrierasi Rivalier (Coleoptera: Cicindelidae), pp. 33-50 in Zootaxa 4941 (1) on page 46, DOI: 10.11646/zootaxa.4941.1.2, http://zenodo.org/record/4594651

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    ZENODO
    Image . 2021
    Data sources: Datacite
    ZENODO
    Image . 2021
    Data sources: ZENODO
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      ZENODO
      Image . 2021
      Data sources: Datacite
      ZENODO
      Image . 2021
      Data sources: ZENODO
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  • Authors: Vlastimil Krivan;
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    Authors: Singh, Arvind; Němec, Hynek; Kunc, J.; Kužel, Petr;

    Data in ASCII format related to the figures in the publication. Each figure has a description file (TXT) which contains the list of spreadsheet names and the data file (DAT, containing all the data relevant to the listed spreadsheets). \nFig1.dat.txt (description file)\nFig1.dat (data file)\n…\nFig8-9.dat.txt\nFig.8-9.dat\nEach spreadsheet in the data file contains a header where all the parameters of the experiment are listed.\n

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    ASEP Repository
    Dataset . 2024
    License: CC BY
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  • Authors: Petr Pohunek; Jana Djakow;
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  • Authors: Vlastimil Krivan;
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    Data supplement for the landscape connectivity study between Iron Age settlements (LT B-LT D) in Křivoklát Protected Landscape Area with focus on site of Nižbor (exact quotation of the paper will be added after its official publishing – Venclová, N. –Dreslerová, D. – Kyselý, R. – Dyčka, M. – Šebesta, J. – Pachnerová Brabcová, K. – Bíšková, J. – Matoušek, V. 2024: Paths to this and the next world: A La Tène sunken hut from Nižbor, Central Bohemia. Archeologické rozhledy 76, 329-358). The study is based on the analysis called Cumulative Focal Mobility Network (CFMN), which has been perfected for more than a decade. This method calculates directional-less movement in the artificial environment from a multitude of source points (grid of 256 equally spaced points in a 50 km radius around Nižbor) by means of the interpretation of slope model using hydrological tools (Fábrega-Álvarez 2006; Murrieta-Flores 2012). The resulting x-number of models, representing the most convenient paths to the selection of points, are then merged and analysed with the Density tool to find the highest number of overlaps (for the syntax, see Fig. 14). In practice, these are the corridors for the most convenient movement throughout the landscape (Bellavia 2001; Verhagen 2010; Déderix 2016). In other words, the analysis can be described as an ideal model of connectivity and accessibility of various locations in the terrain and of optimal pathways – natural corridors of movement – leading across the entire landscape (Verhagen et al. 2013; Stančo – Pažout 2020). The 5th generation Digital Terrain Model of the Czech Republic (DMR 5G) was used for the analysis. It was reclassified to an 8 m cell size and cleared of modern infrastructure developments (Novák et al. 2022). It was combined with the Model of Potential Floodplains in the Czech Republic (Novák 2017), which served as a further buffer for the movement. All analyses were calculated in ArcMap 10.8 software. To reconstruct the position of the studied site in the LT B–LT ­D period in a broader sense, the settlement pattern should be considered within the Křivoklát Protected Landscape Area and its surroundings (principally Beroun, Kladno, Praha-západ and Rakovník districts in Central Bohemia). An overview of La Tène sites was recently presented (Dreslerová et al. 2022) based on current archaeological records (AMCR database). Hence, in a 50 km radius around Nižbor, 344 positive confirmations of human activity can be found between LT B and LT D. For the needs of this study, the site location was refined by merging the immediately neighbouring ones into clusters, which are further treated as one site with positive confirmation of occupation in LT B­–LT D. A total of 149 sites were thus studied in relation to Nižbor. Sources: AMCR database: Archaeological Map of the Czech Republic. Available at: https://digiarchiv.aiscr.cz/ [accessed 01-01-2022]. Bellavia, G. 2001: Extracting "Natural Pathways" from a Digital Elevation Model. Applications to Landscape Archaeological Studies. In: G. Burenhult – J. Arvidsson (eds.), Archaeological Informatics: Pushing The Envelope. Proceedings of the CAA 2001. Oxford: Archaeopress, 5–12. Déderix, S. 2016: Travelling Across Archaeological Landscapes: the Contribution of Hierarchical Communication Networks. In: S. Campana et al. (eds.), Keep the revolution going. Proceedings of the 43rd Annual Conference of Computer Applications and Quantitative Methods in Archaeology, CAA 2015. Oxford: Archaeopress, 555–565. Dreslerová, D. – Venclová, N. – Demján, P. – Kyselý, R. – Matoušek, V. 2022: Did they leave or not? A critical perspective on the beginnings of the La Tène period in Bohemia. Archeologické rozhledy 74, 505–537. https://doi.org/10.35686/AR.2022.24 Fábrega-Álvarez, P. 2006: Moving without destination. A theoretical GIS-based determination of movement from a giving origin. Archaeological Computing Newsletter 64, 7–11. Murrieta-Flores, P. 2012: Understanding human movement through spatial technologies. The role of natural areas of transit in the Late Prehistory of south-western Iberia. Trabajos de Prehistoria 69, 103–122. Novák D. 2017: GIS data - Model potenciálních rozlivových zón na území ČR | GIS data - Model of Potential Floodplains in the Czech Republic. Zenodo. doi: 10.5281/zenodo.3367357. Novák D. – Pružinec F. – Lieskovský T. 2022: The Potential and Implications of Automated Pre-Processing of Lidar-Based Digital Elevation Models for Large-Scale Archaeological Landscape Analysis. Slovak Journal of Civil Engineering 30, 4. http://dx.doi.org/10.2139/ssrn.4063514 Stančo, L. – Pažout, A. 2020: Which way to Roxane: Mobility networks in the heartland of Central Asia. Journal of Archaeological Science: Reports 32, 102391. https://doi.org/10.1016/j.jasrep.2020.102391 Verhagen, P. 2010: On the Road to Nowhere? Least Cost Paths, Accessibility and the Predictive Modelling Perspective. In: F. Contreras – M. Farjas – F. J. Melero (eds.), Proceedings of the 38th Annual Conference on Computer Applications and Quantitative Methods in Archaeology, CAA 2010. Oxford: Archaeopress, 383–390. Verhagen, P. – Brughmans, T. – Nuninger, L. – Bertoncello, F. 2013: The Long and Winding Road: Combining Least Cost Paths and Network Analysis Techniques for Settlement Location Analysis and Predictive Modelling. In: E. Graeme (ed.), Archaeology in the Digital Era. Papers from the 40th Annual Conference of Computer Applications and Quantitative Methods in Archaeology (CAA), Southampton, 26-29 March 2012. Amsterdam: Amsterdam University Press, 357–366.

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  • Authors: Schuldt, Kenneth N.; Aalto, Tuula; Arlyn Andrews; Aoki, Shuji; +162 Authors

    This product is constructed using the Observation Package (ObsPack) framework [Masarie et al., 2014; www.earth-syst-sci-data.net/6/375/2014/]. The framework is designed to bring together atmospheric greenhouse gas (GHG) observations from a variety of sampling platforms, prepare them with specific applications in mind, and package and distribute them in a self-consistent and well-documented product. ObsPack products are intended to support GHG budget studies and represent a new generation of cooperative value-added GHG data products. This product includes 429 atmospheric methane datasets derived from observations made by 54 laboratories from 22 countries. Data for the period 1983-2021 (where available) are included.

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  • Authors: Vlastimil Krivan; Ludek Berec;
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    Authors: Li, Yan-Da; Kundrata, Robin; Tihelka, Erik; Liu, Zhenhua; +2 Authors

    Bioluminescent beetles of the superfamily Elateroidea (fireflies, fire beetles, glow-worms) are the most speciose group of terrestrial light-producing animals. The evolution of bioluminescence in elateroids is associated with unusual morphological modifications, such as soft-bodiedness and neoteny, but the fragmentary nature of the fossil record discloses little about the origin of these adaptations. We report the discovery of a new bioluminescent elateroid beetle family from the mid-Cretaceous of northern Myanmar (ca. 99 Ma), Cretophengodidae fam. nov. Cretophengodes azari gen. et sp. nov. belongs to the bioluminescent lampyroid clade, and represents a transitional fossil linking the soft-bodied Phengodidae + Rhagophthalmidae clade and hard-bodied elateroids. The fossil male possesses a light organ on the abdomen which presumably served a defensive function, documenting a Cretaceous radiation of bioluminescent beetles coinciding with the diversification of major insectivore groups such as frogs and stem-group birds. The discovery adds a key branch to the elateroid tree of life and sheds light on the timing of the evolution of soft-bodiedness and historical biogeography of elateroid beetles. The Burmese amber specimen studied here originates from amber mines near the Noije Bum Hill (26°20' N, 96°36' E), Hukawng Valley, Kachin State, northern Myanmar. The specimen is deposited in the Nanjing Institute of Geology and Palaeontology (NIGP), Chinese Academy of Sciences, Nanjing, China. The amber piece was trimmed with a small table saw, ground with emery papers of different grain sizes, and finally polished with polishing powder. Photographs under incident light were taken with a Zeiss Discovery V20 stereo microscope. Widefield fluorescence images were captured with a Zeiss Axio Imager 2 light microscope combined with a fluorescence imaging system. Confocal images were obtained with a Zeiss LSM710 confocal laser scanning microscope. Images under incident light and widefield fluorescence were stacked in Helicon Focus 7.0.2 or Zerene Stacker 1.04. Confocal images were manually stacked in Adobe Photoshop CC. Images were further processed in Adobe Photoshop CC to enhance contrast. 

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  • Authors: International Conference on Autonomous Agents and Multi-Agent Systems 2021; Bredereck, Robert; Figiel, Aleksander; Kaczmarczyk, Andrzej; +2 Authors

    Read the paper: http://www.ifaamas.org/Proceedings/aamas2021/pdfs/p260.pdf Chat about this paper on Discord: https://discord.com/channels/827790531085336607/833013847086333992 Discord is intended for in-depth chat with authors, independently from the AAMAS schedule. Please post any questions to the authors you would like them to address during the live Q&A right here on Underline. Watch the video on SlidesLive: https://slideslive.com/38954920/highmultiplicityfairallocationmademore-robertbredereck-aleksanderfigiel-38954920-0nNX.mp4 Abstract: The envy-free, Pareto-efficient allocation of indivisible goods leads to computationally hard problems. There is a big variety of modeling issues, such as agent-specific utility functions or (high numbers of) different types of goods. In recent work, Bredereck et al. [ACM EC~2019] addressed this topic by showing (theoretical) fixed-parameter tractability results for "high-multiplicity fair allocation", exploiting parameters such as number of agents or maximum absolute utility values. To this end, they used a number of tools from (theoretical) integer linear programming. We "engineer" their work towards practical usefulness, thereby being able to solve all real-world instances from the state-of-art online platform "spliddit.org for provably fair solutions". Besides providing the foundations for a fast tool for fair allocations, we also offer a flexible framework with the possibility to relax fairness or efficiency demands so to, e.g., allow tradeoffs between fairness and social welfare. Moreover, our framework provides ways to interpret and explain "solution paths" which makes it possible to perform further explorations in cases when no envy-free and efficient allocations exist.

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