Items where Author is "Stephens, JA"

García‐Martín, EE, Sanders, R, Evans, CD, Kitidis, V, Lapworth, DJ, Spears, BM, Tye, A, Williamson, JL, Balfour, C, Best, M, Bowes, MJ, Breimann, S, Brown, IJ, Burden, A, Callaghan, N, Dise, NB, Farr, G, Felgate, SL, Fishwick, J, Fraser, M, Gibb, S, Gilbert, PJ, Godsell, N, Gomez‐Castillo, AP, Hargreaves, G, Harris, C, Jones, O, Kennedy, P, Lichtschlag, A, Martin, AP, May, R, Mawji, E, Mounteney, I, Nightingale, PD, Olszewska, J, Painter, SC, Pearce, CR, Pereira, MG, Peel, K, Pickard, A, Stephens, JA, Stinchcombe, MC, Thornton, B, Woodward, EMS, Yarrow, D and Mayor, DJ 2023 Sources, Composition, and Export of Particulate Organic Matter Across British Estuaries. Journal of Geophysical Research: Biogeosciences, 128 (4). https://doi.org/10.1029/2023JG007420

Dixon, JL, Hopkins, FR, Stephens, JA and Schäfer, H 2020 Seasonal Changes in Microbial Dissolved Organic Sulfur Transformations in Coastal Waters. Microorganisms, 8 (3). 337. https://doi.org/10.3390/microorganisms8030337

Dixon, JL, Hopkins, FE, Stephens, JA and Schaefer, H 2020 Seasonal Changes in Microbial Dissolved Organic Sulfur Transformations in Coastal Waters. [in special issue: Microbial Cycling of Atmospheric Trace Gases] Microorganisms, 8, 337. 20, pp. https://doi.org/10.3390/microorganisms8030337

Hopkins, FE, Nightingale, PD, Stephens, JA, Moore, CM, Richier, S, Cripps, G and Archer, SD 2020 A meta-analysis of microcosm experiments shows that dimethyl sulfide (DMS) production in polar waters is insensitive to ocean acidification. Biogeosciences, 17. 163-186. https://doi.org/10.5194/bg-17-163-2020

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Uncles, RJ, Hooper, T, Stephens, JA and Harris, C 2018 Seasonal variability of turbidity, salinity, temperature and suspended chlorophyll in a strongly tidal sub-estuary: The Lynher Marine Conservation Zone. Estuarine, Coastal and Shelf Science, 212. 253-264. https://doi.org/10.1016/j.ecss.2018.07.017

Hopkins, FE, Nightingale, PD, Stephens, JA, Moore, CM, Richier, S, Cripps, G and Archer, SD 2018 Dimethylsulfide (DMS) production in polar oceans is resilient to ocean acidification. Biogeosciences Discussions. https://doi.org/10.5194/bg-2018-55

Sims, RP, Schuster, U, Watson, AJ, Yang, M, Hopkins, FE, Stephens, JA and Bell, TG 2017 A measurement system for vertical seawater profiles close to the air–sea interface. Ocean Science, 13 (5). 649-660. https://doi.org/10.5194/os-13-649-2017

Smyth, TJ, Quartly, GD, Jackson, T, Tarran, GA, Woodward, EMS, Harris, C, Gallienne, CP, Thomas, R, Airs, RL, Cummings, DG, Brewin, RJW, Kitidis, V, Stephens, JA, Zubkov, MV and Rees, AP 2016 Determining Atlantic Ocean province contrasts and variations. Progress in Oceanography. https://doi.org/10.1016/j.pocean.2016.12.004

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Aiken, J, Brewin, RJW, Dufois, F, Polimene, L, Hardman-Mountford, NJ, Jackson, T, Loveday, BR, Mallor-hoya, S, Dall’Olmo, G, Stephens, JA and Hirata, T 2016 A synthesis of the environmental response of the North and South Atlantic Sub-Tropical Gyres during two decades of AMT. Progress in Oceanography. https://doi.org/10.1016/j.pocean.2016.08.004

Serret, P, Robinson, C, Aranguren-Gassis, M, García-Martín, EE, Gist, N, Kitidis, V, Lozano, J, Stephens, JA, Harris, C and Thomas, R 2015 Both respiration and photosynthesis determine the scaling of plankton metabolism in the oligotrophic ocean. Nature Communications, 6. 6961. https://doi.org/10.1038/ncomms7961

Weller, DI, Law, CS, Marriner, A, Nodder, SD, Chang, FH, Stephens, JA, Wilhelm, SWW, Boyd, PW and Sutton, P 2013 Temporal variation of dissolved methane in a subtropical mesoscale eddy during a phytoplankton bloom in the southwest Pacific Ocean. Progress in Oceanography, 116. 193 - 206. https://doi.org/10.1016/j.pocean.2013.07.008

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Uncles, RJ, Stephens, JA and Harris, C 2013 Estimating estuarine turbidity: An application to estuaries of the Isle of Man and northeast Irish Sea. Ocean & Coastal Management, 79. 42 - 51. https://doi.org/10.1016/j.ocecoaman.2012.05.013

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Hopkins, FE, Kimmance, SA, Stephens, JA, Bellerby, RGJ, Brussaard, CPD, Czerny, JC, Schulz, K and Archer, SD 2013 Response of halocarbons to ocean acidification in the Arctic. Biogeosciences, 10. 2331 - 2345. https://doi.org/10.5194/bg-10-2331-2013

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Uncles, RJ, Stephens, JA and Harris, C 2013 Towards predicting the influence of freshwater abstractions on the hydrodynamics and sediment transport of a small strongly tidal estuary: The Devonshire Avon. Ocean & Coastal Management, 79. 83 - 96. https://doi.org/10.1016/j.ocecoaman.2012.05.006

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Archer, SD, Kimmance, SA, Stephens, JA, Hopkins, FE, Bellerby, RGJ, Schulz, K, Piontek, J and Engel, A 2013 Contrasting responses of DMS and DMSP to ocean acidification in Arctic waters. Biogeosciences, 10. 1893 - 1908. https://doi.org/10.5194/bg-10-1893-2013

Bruun, JT, Rees, AP, Stephens, JA, Thomalla, S, Philibert, R, Waldron, HN, Somerfield, PJ, Jeansson, E, Bellerby, RGJ and Moiseev, D 2012 Assessment of seasonal and decadal signals in the in situ Atlantic plankton data. ICES CM. R:11 - R:11.

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Archer, SD, Kimmance, SA, Stephens, JA, Hopkins, FE, Bellerby, RGJ, Shulz, KG, Piontek, J and Engel, A 2012 Contrasting responses of DMS and DMSP to ocean acidification in Arctic waters. Biogeosciences Discussions, 9. 12803 - 12843. https://doi.org/10.5194/bgd-9-12803-2012

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Uncles, RJ and Stephens, JA 2011 The Effects of Wind Runoff and Tides on Salinity in a Strongly Tidal Sub-estuary. Estuaries and Coasts, 34. 758 - 774. https://doi.org/10.1007/s12237-010-9365-3

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Archer, SD, Tarran, GA, Stephens, JA, Butcher, LJ and Kimmance, SA 2011 Combining cell sorting with gas chromatography to determine phytoplankton group-specific intracellular dimethylsulphoniopropionate. Aquatic Microbial Ecology, 62. 109 - 121. https://doi.org/10.3354/ame01464

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Smyth, TJ, Fishwick, J, Gallienne, CP, Stephens, JA and Bale, AJ 2010 Technology Design and Operation of an Autonomous Buoy System in the Western English Channel. Journal of Atmospheric and Oceanic Technology, 27. 2056 - 2064. https://doi.org/10.1175/2010JTECHO734.1

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Uncles, RJ, Bale, AJ, Stephens, JA, Frickers, PE and Harris, C 2010 Observations of floc sizes in a muddy estuary. Estuarine, Coastal and Shelf Science, 87. 186 - 196. https://doi.org/10.1016/j.ecss.2009.12.018

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Uncles, RJ and Stephens, JA 2010 Turbidity and sediment transport in a muddy sub-estuary. Estuarine, Coastal and Shelf Science, 87. 213 - 224. https://doi.org/10.1016/j.ecss.2009.03.041

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Huebert, BJ, Blomquist, BW, Yang, M, Archer, SD, Nightingale, PD, Yelland, MJ, Stephens, JA, Pascal, RW and Moat, BI 2010 Linearity of DMS transfer coefficient with both friction velocity and wind speed in the moderate wind speed range. Geophysical Research Letters, 37 (L01605). 0 - 0. https://doi.org/10.1029/2009GL041203

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Brooks, IM, Yelland, MJ, Upstill-Goddard, RC, Nightingale, PD, Archer, SD, d'Asaro, E, Beale, R, Beatty, C, Blomquist, BW, Bloom, AA, Brooks, B, Cluderay, J, Coles, D, Dacey, J, DeGrandpre, MD, Dixon, JL, Drennan, WM, Gabriele, J, Goldson, LE, Hardman-Mountford, NJ, Hill, MK, Horn, M, Hsueh, PC, Huebert, BJ, de Leeuw, G, Leighton, TG, Liddicoat, MI, Lingard, JJN, McNeil, C, McQuaid, JB, Moat, BI, Moore, GF, Neil, C, Norris, SJ, O'Doherty, SJ, Pascal, RW, Prytherch, J, Rebozo, M, Sahlee, E, Salter, M, Schuster, U, Skjelvan, I, Slagter, H, Smith, MH, Smith, PD, Srokosz, MA, Stephens, JA, Taylor, P, Telszewski, M, Walsh, R, Ward, B, Woolf, DK, Young, D and Zemmelink, H 2009 Physical exchanges at the air-sea interface UK-SOLAS Field Measurements. Bulletin of the American Meteorological Society, 5. 629 - 644. https://doi.org/10.1175/2008BAMS2578.1

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Bale, AJ, Stephens, JA and Harris, C 2007 Critical erosion profiles in macro-tidal estuary sediments: Implications for the stability of intertidal mud and the slope of mud banks. Continental Shelf Research, 27. 2303 - 2313. https://doi.org/10.1016/j.csr.2007.05.015

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Uncles, RJ, Stephens, JA and Harris, C 2006 Runoff and tidal influences on the estuarine turbidity maximum of a highly turbid system: The upper Humber and Ouse Estuary UK. Marine Geology, 235 (1 - 4). 213 - 228. https://doi.org/10.1016/j.margeo.2006.10.015

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Bale, AJ, Widdows, J, Harris, C and Stephens, JA 2006 Measurements of the critical erosion threshold of surface sediments along the Tamar Estuary using a mini-annular flume. Continental Shelf Research, 26. 1206 - 1216. https://doi.org/10.1016/j.csr.2006.04.003

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Uncles, RJ, Stephens, JA and Harris, C 2006 Properties of suspended sediment in the estuarine turbidity maximum of the highly turbid Humber Estuary system UK. Ocean Dynamics, 56 (3 - 4). 235 - 247. https://doi.org/10.1007/s10236-005-0053-y

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Uncles, RJ, Stephens, JA and Law, DJ 2006 Turbidity Maximum in the Macrotidal Highly Turbid Humber Estuary UK: Flocs Fluid Mud Stationary Suspensions and Tidal Bores. Estuarine, Coastal and Shelf Science, 67. 30 - 52. https://doi.org/10.1016/j.ecss.2005.10.013

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Uncles, RJ, Stephens, JA and Harris, C 2004 Estimated accretion on a proposed managed retreat area of the Humber Estuary: the Alkborough setback. Proceedings of: Littoral 2004 20-22 September 2004 Aberdeen Scotland, 2. 496 - 501.

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Uncles, RJ, Stephens, JA and Smith, RE 2002 The dependence of estuarine turbidity on tidal intrusion length tidal range and residence time. Continental Shelf Research, 22 (Nov-13). 1835 - 1856. https://doi.org/10.1016/S0278-4343(02)00041-9

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Uncles, RJ, Lavender, SJ and Stephens, JA 2001 Remotely sensed observations of the turbidity maximum in the highly turbid Humber estuary UK. Estuaries, 24 (5). 745 - 755. https://doi.org/10.2307/1352882

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Uncles, RJ and Stephens, JA 2001 The annual cycle of temperature in a temperate estuary and associated heat fluxes to the coastal zone. Journal of Sea Research, 46 (2). 143 - 159. https://doi.org/10.1016/S1385-1101(01)00078-8

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Uncles, RJ and Stephens, JA 2000 Observations of currents salinity turbidity and intertidal mudflat characteristics and properties in the Tavy Estuary UK. Continental Shelf Research, 20 (Dec-13). 1531 - 1549. https://doi.org/10.1016/S0278-4343(00)00036-4

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Uncles, RJ and Stephens, JA 1999 Suspended sediment fluxes in the tidal Ouse UK. Hydrological Processes, 13 (7). 1167 - 1179.

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Uncles, RJ, Morris, KP, Stephens, JA, Robinson, MC and Murphy, RJ 1999 Aircraft and sea-truth observations of salinity and temperature within the Tweed Estuary and coastal-zone frontal system. International Journal of Remote Sensing, 20 (3). 609 - 625. https://doi.org/10.1080/014311699213370

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Woodward, EMS, Rees, AP and Stephens, JA 1999 The influence of the south-west monsoon upon the nutrient biogeochemistry of the Arabian Sea. Deep Sea Research Part II: Topical Studies in Oceanography, 46 (03-Apr). 571 - 591. https://doi.org/10.1016/S0967-0645(98)00118-0

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Uncles, RJ, Joint, IR and Stephens, JA 1998 Transport and retention of suspended particulate matter and bacteria in the Humber-Ouse Estuary United Kingdom and their relationship to hypoxia and anoxia. Estuaries, 21 (4A). 597 - 612. https://doi.org/10.2307/1353298

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Taylor, AH, Jordan, MB and Stephens, JA 1998 Gulf Stream shifts following ENSO events. Nature, 393 (6686). 638 - 638. https://doi.org/10.1038/31380

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Stephens, JA, Jordan, MB, Taylor, AH and Proctor, R 1998 The effects of fluctuations in North Sea flows on zooplankton abundance. Journal of Plankton Research, 20 (5). 943 - 956. https://doi.org/10.1093/plankt/20.5.943

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Taylor, AH and Stephens, JA 1998 The North Atlantic oscillation and the latitude of the Gulf Stream. Tellus Series A-Dynamic Meteorology and Oceanography, 50 (1). 134 - 142. https://doi.org/10.1034/j.1600-0870.1998.00010.x

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Uncles, RJ, Wood, RG, Stephens, JA and Howland, RJM 1998 Estuarine nutrient fluxes to the Humber coastal zone UK during June 1995. Marine Pollution Bulletin, 37 (03-Jul). 225 - 233.

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Uncles, RJ and Stephens, JA 1997 Dynamics of turbidity in the tweed estuary. Estuarine, Coastal and Shelf Science, 45 (6). 745 - 758. https://doi.org/10.1006/ecss.1997.0232

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Uncles, RJ, Stephens, JA and Murphy, RJ 1997 Aircraft and sea-truth observations of a small-scale estuarine intrusion front. Journal of Marine Systems, 12 (01-Apr). 199 - 219. https://doi.org/10.1016/S0924-7963(96)00098-X

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Grabemann, I, Uncles, RJ, Krause, G and Stephens, JA 1997 Behaviour of turbidity maxima in the Tamar (UK) and Weser (FRG) estuaries. Estuarine, Coastal and Shelf Science, 45 (2). 235 - 246. https://doi.org/10.1006/ecss.1996.0178

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Uncles, RJ and Stephens, JA 1996 Salt intrusion in the Tweed Estuary. Estuarine, Coastal and Shelf Science, 43 (3). 271 - 293. https://doi.org/10.1006/ecss.1996.0070

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Uncles, RJ, Barton, ML and Stephens, JA 1994 Seasonal Variability Of Fine-Sediment Concentrations In The Turbidity Maximum Region Of The Tamar Estuary. Estuarine, Coastal and Shelf Science, 38 (1). 19 - 39. https://doi.org/10.1006/ecss.1994.1002

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Uncles, RJ and Stephens, JA 1993 Nature Of The Turbidity Maximum In The Tamar Estuary UK. Estuarine, Coastal and Shelf Science, 36 (5). 413 - 431. https://doi.org/10.1006/ecss.1993.1025

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Uncles, RJ and Stephens, JA 1993 The Fresh-Water-Saltwater Interface And Its Relationship To The Turbidity Maximum In The Tamar Estuary United-Kingdom. Estuaries, 16 (1). 126 - 141. https://doi.org/10.2307/1352770

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Taylor, AH and Stephens, JA 1993 Diurnal-Variations Of Convective Mixing And The Spring Bloom Of Phytoplankton. Deep Sea Research Part II: Topical Studies in Oceanography, 40 (01-Feb). 389 - 408. https://doi.org/10.1016/0967-0645(93)90023-G

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Taylor, AH, Colebrook, JM, Stephens, JA and Baker, NG 1992 Latitudinal Displacements Of The Gulf-Stream And The Abundance Of Plankton In The North-East Atlantic. Journal of the Marine Biological Association of the United Kingdom, 72 (4). 919 - 921.

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Stephens, JA, Uncles, RJ, Barton, ML and Fitzpatrick, F 1992 Bulk Properties Of Intertidal Sediments In A Muddy Macrotidal Estuary. Marine Geology, 103 (01-Mar). 445 - 460. https://doi.org/10.1016/0025-3227(92)90031-C

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Uncles, RJ and Stephens, JA 1990 The Structure Of Vertical Current Profiles In A Macrotidal Partly-Mixed Estuary. Estuaries, 13 (4). 349 - 361. https://doi.org/10.2307/1351780

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Uncles, RJ and Stephens, JA 1990 Computed And Observed Currents Elevations And Salinity In A Branching Estuary. Estuaries, 13 (2). 133 - 144. https://doi.org/10.2307/1351582

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West, JR, Uncles, RJ, Stephens, JA and Shiono, K 1990 Longitudinal Dispersion Processes In The Upper Tamar Estuary. Estuaries, 13 (2). 118 - 124. https://doi.org/10.2307/1351580

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Uncles, RJ and Stephens, JA 1989 Distributions Of Suspended Sediment At High Water In A Macrotidal Estuary. Journal of Geophysical Research-Oceans, 94 (C10). 14395 - 14405. https://doi.org/10.1029/JC094iC10p14395

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Uncles, RJ, Stephens, JA and Woodrow, TY 1988 Seasonal Cycling Of Estuarine Sediment And Contaminant Transport. Estuaries, 11 (2). 108 - 116. https://doi.org/10.2307/1351998

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Uncles, RJ, Woodrow, TY and Stephens, JA 1987 Influence Of Long-Term Sediment Transport On Contaminant Dispersal In A Turbid Estuary. Continental Shelf Research, 7 (11-Dec). 1489 - 1493. https://doi.org/10.1016/0278-4343(87)90058-6

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Uncles, RJ, Stephens, JA and Barton, ML 1994 Seasonal Variability Of Fine-Sediment Fluxes In The Tamar Estuary. UNSPECIFIED, 17 - 22.

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Uncles, RJ and Stephens, JA 1996 Seasonal variability of fine-sediment in the Tamar estuary. In: International Symposium on Suspended Particulate Matter in Rivers and Estuaries, REINBEK, GERMANY, MAR 21-25, 1994. ADVANCES IN LIMNOLOGY 47: SUSPENDED PARTICULATE MATTER IN RIVERS AND ESTUARIES, ERGEBNISSE DER LIMNOLOGIE, 411 - 414.

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Uncles, RJ, Stephens, JA and Harris, C 2007 Final Report on the Sediments and Hydrography of the Devonshire Avon Estuary. [Dissemination / Communication]

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Uncles, RJ and Stephens, JA 2007 SEA 8 Technical Report - Hydrography. [Dissemination / Communication]

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Uncles, RJ, Stephens, JA and Harris, C 2007 Review of Salinity Temperature and Suspended Sediment Data for estuaries of the South West Region. [Dissemination / Communication]

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