Porth Ymchwil

Ysgol Gwyddorau Eigion

2451 - 2500 o blith 2,902Maint y tudalen: 50
Trefnu yn ôl: Math
  1. Pennod › Ymchwil › Adolygwyd gan gymheiriaid
  2. Cyhoeddwyd

    For a world without boundaries: connectivity between marine tropical ecosystems in times of change

    Earp, H., Prinz, N., Cziesielski, M. & Andskog, M., 2018, Oceans across boundaries: Learning from each other - The 2017 conference for YOUng MARine RESearchers in Kiel. Jungblut, S., Liebich, V. & Bode, M. (gol.). Berlin: Springer Science and Business Media Deutschland GmbH, t. 122-144

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Pennod › adolygiad gan gymheiriaid

  3. Cyhoeddwyd

    Geografski aspekti vrednovanja prirodnih resursa Općine Polača

    Barada, M. & Perić, Z., 2020, Polački kraj u prošlosti i sadašnjosti. 1 gol. Zadar, Croatia: Matica Hrvatska ZADAR, t. 591-620

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Pennod › adolygiad gan gymheiriaid

  4. Cyhoeddwyd

    Improved Understanding and Characterisation of Climate Hazards in the UK

    Catto, J., Brown, S., Barnes, C., Chan, S., Cotterill, D., Dale, M., Dawkins, L., Fowler, H., Garry, F., Keat, W., Kendon, E., Lowe, J., Manning, C., Pritchard, D., Robins, P., Sexton, D., Shooter, R. & Stephenson, D., 23 Rhag 2023, Quantifying Climate Risk and Building Resilience in the UK. Springer

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Pennod › adolygiad gan gymheiriaid

  5. Cyhoeddwyd

    Introduction to Ocean Renewable Energy

    Neill, S., 2021, Comprehensive Renewable Energy. 2nd gol. Elsevier

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Pennod › adolygiad gan gymheiriaid

  6. Cyhoeddwyd

    Life associated with Baltic Sea ice

    Thomas, D. N., Kaartokallio, H., Tedesco, L., Majaneva, M., Piiparinen, J., Eronen-Rasimus, E., Rintala, J.-M., Kuosa, H., Blomster, J., Vainio, J. & Granskog, M. A., 5 Ebr 2017, Biological Oceanography of the Baltic Sea. Snoeijs-Leijonmalm, P., Schubert, H. & Radziejewska, T. (gol.). 1 gol. Dordrecht: Springer Science, t. 333-357

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Pennod › adolygiad gan gymheiriaid

  7. Cyhoeddwyd

    Measuring and Observing the Ocean Renewable Energy Resource

    Christie, D. & Neill, S., 2021, Comprehensive Renewable Energy. 2nd gol.

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Pennod › adolygiad gan gymheiriaid

  8. Cyhoeddwyd

    Mixing in the Arctic Ocean

    Lenn, Y.-D., Fer, I., Timmermans, M.-L. & MacKinnon, J. A., 5 Hyd 2021, Ocean Mixing: Drivers, Mechanisms, Impacts. Meredith, M. & Garabato, A. (gol.). Elsevier, t. 275-299

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Pennod › adolygiad gan gymheiriaid

  9. Cyhoeddwyd

    Ocean Renewable Energy Test Centers

    Marti, V., Culina, J. & Neill, S., 9 Medi 2021, Earth Systems and Environmental Sciences. 2nd gol.

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Pennod › adolygiad gan gymheiriaid

  10. Cyhoeddwyd

    Physical controls on phytoplankton and nutrient cycles in the Clyde Sea, a fjordic system on the west coast of Scotland

    Jones, K., Grantham, B., Ezzi, I., Rippeth, T. & Simpson, J., 1995, Mare Nor Symposium on the Ecology of Fjords and Coastal Waters. t. 93-104

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Pennod › adolygiad gan gymheiriaid

  11. Cyhoeddwyd

    Radiological assessment of the Ribble Estuary

    Newstead, S., Mudge, S., Assinder, D. & Bourne, G., 1995, Environmental Impact of Radioactive Releases. t. 761-762 (International Atomic Energy Agency Proceedings Series 2 : Nuclear Safety and Environmental Protection).

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Pennod › adolygiad gan gymheiriaid

  12. Cyhoeddwyd

    Salinity Gradient Power

    Withers, T. & Neill, S., 20 Hyd 2021, Earth Systems and Environmental Sciences. 2nd gol. Elsevier Press

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Pennod › adolygiad gan gymheiriaid

  13. Cyhoeddwyd

    Sea Ice, Ice Drift, and Oceanic Circulation

    Thomas, D. N., Cottier, F. R. & Brandon, M. A., 6 Maw 2017, The International Encyclopedia of Geography: : People, the Earth, Environment and Technology. Richardson, D., Castree, N., Goodchild, M. F., Kobayashi, A., Liu, W. & Marston, R. A. (gol.). 1 gol. John Wiley & Sons, t. 6075-6084 10 t.

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Pennod › adolygiad gan gymheiriaid

  14. Cyhoeddwyd

    Seabirds and Marine Renewables: Are we Asking the Right Questions?

    Scott, B. E., Langton, R., Philpott, E. & Waggitt, J., Chwef 2014, Marine Renewable Energy Technology and Environmental Interactions. Springer, t. 81-92 11 t.

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Pennod › adolygiad gan gymheiriaid

  15. Cyhoeddwyd

    Supporting STEM Students’ Self-Regulatory Skills through Developing their Assessment Literacy and Evaluative Judgement Capabilities

    Grange, L., Evans, C. & Zhu, X., Hyd 2024, Research Handbook on Innovations in Assessment and Feedback in Higher Education: Implications for Teaching and Learning. Evans, C. & Waring, M. (gol.). Edward Elgar Publishing Ltd, t. 170-195

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Pennod › adolygiad gan gymheiriaid

  16. Cyhoeddwyd

    The Impact of Marine Renewable Energy Extraction on Sediment Dynamics

    Neill, S., Robins, P. & Fairley, I., 10 Ebr 2017, Marine Renewable Energy: Resource characterization and physical effects. Yang, Z. & Copping, A. (gol.). Springer, t. 279-304

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Pennod › adolygiad gan gymheiriaid

  17. Cyhoeddwyd

    The Intertidal Zone of the North-East Atlantic Region: Pattern and Process

    Hawkins, S. J., Pack, K. E., Firth, L. B., Mieszkowska, N., Evans, A. J., Martins, G. M., Åberg, P., Adams, L. C., Arenas, F., Boaventura, D. M., Bohn, K., Borges, C. D. G., Castro, J. J., Coleman, R. A., Crowe, T. P., Cruz, T., Davies, M. S., Epstein, G., Faria, J., Ferreira, J. G., Frost, N. J., Griffin, J. N., Hanley, M., Herbert, R. J. H., Hyder, K., Johnson, M. P., Lima, F. P., Masterson-Algar, P., Moore, P. J., Moschella, P. S., Notman, G. M., Pannacciulli, F. G., Ribeiro, P. A., Santos, A. M., Silva, A. C. F., Skov, M. W., Sugden, H., Vale, M., Wangkulangkul, K., Wort, E. J. G., Thompson, R. C., Hartnoll, R. G., Burrows, M. T. & Jenkins, S. R., Medi 2019, Interactions in the Marine Benthos: Global Patterns and Processes. Hawkins, S. J., Bohn, K., Firth, L. B. & Williams, G. A. (gol.). 1 gol. Cambridge: Cambridge University Press, Cyfrol 87. t. 7-46 40 t. (Systematics Assocations; Cyfrol Special Volume 87).

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Pennod › adolygiad gan gymheiriaid

  18. Cyhoeddwyd

    The seasonal cycle of stratification in a Scottish fjord

    Rippeth, T., Midgley, R. & Simpson, J., 1995, Mare Nor Symposium on the Ecology of Fjords and Coastal Waters. t. 85-92

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Pennod › adolygiad gan gymheiriaid

  19. Cyhoeddwyd

    Tides, the Moon and the Kaleidoscope of Ocean Mixing

    Rippeth, T. & Green, M., 16 Tach 2020, Oceanography and Marine Biology: An Annual Review. Hawkins, S. J., Allcock, A. L., Bates, A. E., Evans, A. J., Firth, L. B., McQuaid, C. D., Russell, B. D., Smith, I. P., Swearer, S. E. & Todd, P. A. (gol.). Taylor & Francis, Cyfrol 58. t. 319-350

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Pennod › adolygiad gan gymheiriaid

  20. Cyhoeddwyd

    Turbulence and Stratification in Estuaries and Coastal Seas

    Stacey, M., Rippeth, T. & Nash, J., 2011, Reference Module in Earth Systems and Environmental Sciences: Treatise on Estuarine and Coastal Science. Elsevier Science, Cyfrol 2. t. 9-35

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Pennod › adolygiad gan gymheiriaid

  21. Wedi ei Dderbyn / Yn y wasg

    Using mixed-clay sediment gravity flow rheology as an indicator for flow velocity and run-out distance

    Baker, M., Baas, J., Malarkey, J. & Silva Jacinto, R., 10 Gorff 2024, (Wedi ei Dderbyn / Yn y wasg) Particulate Gravity Currents in the Environment. American Geophysical Union

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Pennod › adolygiad gan gymheiriaid

  22. Cyfraniad i Gynhadledd › Ymchwil › Heb ei adolygu gan gymheiriaid
  23. Cyhoeddwyd

    Evaluation of spatial contamination patterns for norovirus and faecal indicator bacteria near to a coastal sewage discharge using Mytilus edulis as biosentinels

    Winterbourn, J. B., Clements, K., Malham, S., McDonald, J. & Jones, D. L., Ion 2013, 92 McLeod et al (eds.). Proc. 9th Int. Conf. Molluscan Shellfish Safety . t. 89-92

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Cyfraniad i Gynhadledd

  24. Cyhoeddwyd

    Fertilization success of the circumpolar Antarctic Seastar Odontaster validus: A diver-collected study

    Grange, L., Tyler, P. & Peck, L., 2011, Proceedings of the American Academy of Underwater Sciences 30th Symposium. Pollock, N. W. (gol.). t. 140-151 12 t.

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Cyfraniad i Gynhadledd

  25. Cyhoeddwyd

    Measuring tidal hydrodynamics and bedform evolution in the Dee estuary

    Bolaños, R., Souza, A. J., Bell, P. & Malarkey, J., 2009, Proceedings of the 6th Symposium on River, Coastal and Estuarine Morphodynamics (RCEM 2009): Santa Fe, Argentina, 21-25 Sep. 2009. CRC Press/Balkema, Cyfrol 2. t. 709-714

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Cyfraniad i Gynhadledd

  26. Cyfraniad i Gynhadledd › Ymchwil › Adolygwyd gan gymheiriaid
  27. Cyhoeddwyd

    Assessment of radiation exposure from discharges of uranium ore concentrate processing and nuclear fuel reprocessing facilities

    Assinder, D., Mudge, S. & Bourne, G., 1994, Radiation and society: comprehending radiation risk: proceedings of an International Conference on Radiation and Society: Comprehending Radiation Risk. t. 184 1 t.

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Cyfraniad i Gynhadledd › adolygiad gan gymheiriaid

  28. Cyhoeddwyd

    Behaviour of plutonium in the inter tidal sediments of the eastern Irish Sea

    Assinder, D., 1983, Ecological aspects of radionuclide release. Coughtrey, P., Bell, J. & Roberts, T. (gol.). 3 gol. British Ecological Society, Cyfrol Special Publication . 8 t. (Special Publication of the British Ecological Society).

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Cyfraniad i Gynhadledd › adolygiad gan gymheiriaid

  29. Cyhoeddwyd

    ECOWind-ACCELERATE: accelerated seabed mobility around offshore windfarms.

    Van Landeghem, K., 3 Ebr 2023, Valance, A., Garlan, T., MARID VII. Seventh International Conference on Marine and River Dune Dynamics. Rennes, France, 3-5 April 2023. University of Rennes 1 and Shom. 344 p.. University of Rennes 1 and Shom, t. 149-154 6 t.

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Cyfraniad i Gynhadledd › adolygiad gan gymheiriaid

  30. Cyhoeddwyd

    Evaluating an automated object-oriented method to delineate drumlins from both terrestrial and submarine digital elevation models.

    Saha, K. & Van Landeghem, K., 17 Meh 2021, ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences. Copernicus GmbH, Cyfrol 3-2021. t. 29-35

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Cyfraniad i Gynhadledd › adolygiad gan gymheiriaid

  31. Cyhoeddwyd

    Modelling scour around submerged objects with TELEMAC3D - GAIA

    Yiannoukos, I., Benson, T., Van Landeghem, K., Couldrey, A., Whitehouse, R., McCarron, C., Quinn, R., Morgan, J., Roberts, M. & Clayton-Smith, B., 30 Hyd 2020, Online proceedings of the papers submitted to the 2020 TELEMAC-MASCARET User Conference. Breugem, W. A., Frederickx, L., Koutrouveli, T., Kulkarni, R., Chu, K. & Decrop, B. (gol.). International Marine & Dredging Consultants, t. 68-73 6 t.

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Cyfraniad i Gynhadledd › adolygiad gan gymheiriaid

  32. Cyhoeddwyd

    Numerical Simulation of Tsunami waves on the beach with a large, inclined bottom

    Kannapiran, T., 22 Ebr 2012, NASA Simithsonian: NASA Astrophysics Data System .

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Cyfraniad i Gynhadledd › adolygiad gan gymheiriaid

  33. Cyhoeddwyd

    The Increasing Prevalence of High Frequency Internal Waves in an Arctic Ocean With Declining Sea Ice Cover

    Rippeth, T., Vlasenko, V., Stashchuk, N., Koslov, I., Scannell, B., Green, M., Lincoln, B. & Lenn, Y.-D., 11 Tach 2019, ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, OMAE2019-96621

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Cyfraniad i Gynhadledd › adolygiad gan gymheiriaid

  34. Cyhoeddwyd

    Wave energy converters, sediment transport and coastal erosion

    Vӧgler, A., Christie, D., Lidster, M. & Morrison, J., 2011, ICES Annual Science Conference, 19--23 September 2011, Gdask, Poland.

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Cyfraniad i Gynhadledd › adolygiad gan gymheiriaid

  35. Cyfraniad Pennod Arall › Ymchwil › Heb ei adolygu gan gymheiriaid
  36. Cyhoeddwyd

    Validated Sentinel fields for the set of met-ocean variables considered

    Rulent, J. (Cyfrannwr), Badger, M., Ahsbahs, T. (Cyfrannwr), Martin, A. C. H. (Cyfrannwr), Shaw, A. (Cyfrannwr), Boye Hansen, L. (Cyfrannwr), Abdalla, S. (Cyfrannwr), Bidlot, J. (Cyfrannwr), Bonaldo, D. (Cyfrannwr), Cavaleri, L. (Cyfrannwr), Espino, M. (Cyfrannwr), Wiesse, A. (Cyfrannwr) & Staneva, J. (Cyfrannwr), Maw 2018, COPERNICUS EVOLUTION AND APPLICATIONS WITH SENTINEL ENHANCEMENTS AND LAND EFFLUENTS FOR SHORES AND SEAS .

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Cyfraniad Pennod Arall

  37. Cyfraniad Pennod Arall › Ymchwil › Adolygwyd gan gymheiriaid
  38. Cyhoeddwyd

    Collecting quality echosounder data in inclement weather

    Jech, M., Schaber, M., ox, M., Escobar-Flores, P., Gastauer, S., Haris, K., Horne, J., Jarvis, T., Ladroit, Y., O'Driscoll, R., Pederson, G., Peña, M., Ryan, T., Sakinan, S., Thomas, R., Viehman, H., Wall, C. & Whitton, T., 1 Rhag 2021, ICES Cooperative Research Report. Anderson, E. (gol.). International Council for the Exploration of the Sea, Cyfrol 352. 108 t.

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Cyfraniad Pennod Arall › adolygiad gan gymheiriaid

  39. Papur › Ymchwil › Heb ei adolygu gan gymheiriaid
  40. Cyhoeddwyd

    1DV-model of sand transport by waves and currents in the rippled bed regime.

    Davies, A. G. & Thorne, P. D., 1 Ion 2002, t. 2599-2611.

    Allbwn ymchwil: Cyfraniad at gynhadledd › Papur

  41. Cyhoeddwyd

    A Comparative Study of O2 Measurements in Experimental (Interice II) and Natural (ISPOL, Western Weddell Sea, Antarctica) First Year Sea Ice.

    Tison, J. L., Mock, T., Thomas, D. N., Krell, A., Papadimitriou, E., Verbeke, V., Delille, B. & Dieckmann, G. S., 1 Ion 2005.

    Allbwn ymchwil: Cyfraniad at gynhadledd › Papur

  42. Cyhoeddwyd

    A cross-matched floating master shell chronology from growth lines in the shell of the Heart Cockle Glossus humanus (L.)

    Scourse, J. D., Young, G. (Golygydd) & Reynolds, D., 1 Ion 2009, t. 106-107.

    Allbwn ymchwil: Cyfraniad at gynhadledd › Papur

  43. Cyhoeddwyd

    A novel technique for measuring mixing using Acoustic Doppler Current Profilers (ADCPs)

    Wiles, P., Simpson, J. & Rippeth, T. P., 1 Ion 2005, t. 9-13.

    Allbwn ymchwil: Cyfraniad at gynhadledd › Papur

  44. Cyhoeddwyd

    A progress report on the control of the free surface in a 3D Navier Stokes solver for coastal applications.

    Gejadze, I., Copeland, G., Neill, S. P., Fang, F. & Pain, C., 1 Ion 2004, t. 681-694.

    Allbwn ymchwil: Cyfraniad at gynhadledd › Papur

  45. Cyhoeddwyd

    A simple model of oscillatory sheet flow

    Malarkey, J., Davies, A. G. & Li, Z., 1 Gorff 2002.

    Allbwn ymchwil: Cyfraniad at gynhadledd › Papur

  46. Cyhoeddwyd

    A transport model of graded sands in the oscillatory sheet-flow regime.

    Malarkey, J. & Davies, A. G., 4 Ebr 2006, t. 14.

    Allbwn ymchwil: Cyfraniad at gynhadledd › Papur

  47. Cyhoeddwyd

    An example of conservation and exploitation achieved through a voluntary fishery management system.

    Blyth, R. E., Kaiser, M. J., Edwards-Jones, G. & Hart, P. J., 1 Ion 2001.

    Allbwn ymchwil: Cyfraniad at gynhadledd › Papur

  48. Cyhoeddwyd

    An experimental model for turbulence modulation in natural clay-laden flows over flat beds, ripples and dunes.

    Baas, J. H., Best, J. L. & Kellman, P., 1 Ion 2006.

    Allbwn ymchwil: Cyfraniad at gynhadledd › Papur

  49. Cyhoeddwyd

    Bedform development below transient turbulent, partly cohesive open-channel flows.

    Baas, J. H., Best, J. L. & Kellman, P., 1 Ion 2007.

    Allbwn ymchwil: Cyfraniad at gynhadledd › Papur

  50. Cyhoeddwyd

    Bedforms in high concentration flows – Preliminary results of laboratory experiments.

    Kellman, P., Best, J. L., Baas, J. H., Peakall, J. & Parsons, D., 1 Ion 2006.

    Allbwn ymchwil: Cyfraniad at gynhadledd › Papur

  51. Cyhoeddwyd

    Behaviour of dissolved organic matter during experimental ice formation during the INTERICE 4 project.

    Haase, S., Stedmon, C., Granskog, M. A., Vähätalo, A., Norman, L., Dieckmann, G. S. & Thomas, D. N., 1 Ion 2010.

    Allbwn ymchwil: Cyfraniad at gynhadledd › Papur

  52. Cyhoeddwyd

    Behaviour of fully ponded turbidity currents in confined basins: An experimental study.

    Patacci, M., McCaffrey, W. M., Haughton, P., Baas, J. H. & Keevil, G., 1 Ion 2006.

    Allbwn ymchwil: Cyfraniad at gynhadledd › Papur

  53. Cyhoeddwyd

    Benthic foraminifera and stable isotopes as palaeostratification indicators in shelf seas.

    Scourse, J. D., Long, B. T., Scott, G. A. & Austin, W. E., 1 Ion 2001.

    Allbwn ymchwil: Cyfraniad at gynhadledd › Papur

  54. Cyhoeddwyd

    Biogeochemistry of sea ice at the limits of detection- what are we missing?

    Thomas, D. N., 1 Ion 2007.

    Allbwn ymchwil: Cyfraniad at gynhadledd › Papur

  55. Cyhoeddwyd

    Biogeochemistry of sea ice in a changing climate.

    Thomas, D. N., 1 Ion 2005.

    Allbwn ymchwil: Cyfraniad at gynhadledd › Papur

  56. Cyhoeddwyd

    Bonamia ostreae-induced mortalities in one-year old European flat oysters Ostrea edulis: experimental infection by cohabitation challenge.

    Lallias, D., Arzul, I., Heurtebise, S., Ferrand, S., Chollet, B., Robert, M., Beaumont, A. R., Boudry, P., Morga, I. & Lapegue, S., 1 Ion 2008.

    Allbwn ymchwil: Cyfraniad at gynhadledd › Papur

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