Coleg Gwyddoniaeth a Pheirianneg

  1. 2016
  2. Cyhoeddwyd

    Comparison of harvested rate and nacre deposition parameters between cultured pearls issued from initial graft and second nucleus insertion in P. margaritifera

    Demmer, J., Cabral, P. & Ky, C-L., 1 Hyd 2016, Yn: Aquaculture Research. 47, 10

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  3. Cyhoeddwyd

    How the proposed reintroduction of Eurasian lynx to Britain illustrates competing values and contrasting views associated with humans and the natural world

    Gray, J., Brockington, J., Hayward, M. & Walmsley, J., 1 Hyd 2016, Yn: Country-Side Magazine. 36, 2

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  4. Cyhoeddwyd

    Isolation studies reveal a shift in the cultivable microbiome of oak affected with Acute Oak Decline

    Denman, S., Plummer, S., Peace, A. & McDonald, J., 1 Hyd 2016, Yn: Systematic and Applied Microbiology. 39, 7, t. 484-490

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  5. Cyhoeddwyd

    Phosphorus speciation by 31P NMR spectroscopy 1 in bracken 2 (Pteridium aquilinum (L.) Kuhn) and bluebell (Hyacinthoides non3 scripta (L.) Chouard ex Rothm.) dominated semi-natural upland soil

    Ebuele, V., Santoro, A. & Thoss, V., 1 Hyd 2016, Yn: Science of the Total Environment. 566-567, October, t. 1318-1328

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  6. Cyhoeddwyd

    Relationships between on-farm tree stocks and soil organic carbon along an altitudinal gradient, Mount Kilimanjaro, Tanzania

    Mathew, M. M., Majule, A. E., Sinclair, F. & Marchant, R., 1 Hyd 2016, Yn: Forests, Trees and Livelihoods. 25, 4, t. 255-266 12 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  7. Cyhoeddwyd

    Saving the World's Terrestrial Megafauna

    Ripple, W. J., Chapron, G., López-Bao, J. V., Durant, S. M., Macdonald, D. W., Lindsey, P. A., Bennett, E. L., Beschta, R. L., Bruskotter, J. T., Campos-Arceiz, A., Corlett, R. T., Darimont, C. T., Dickman, A. J., Dirzo, R., Dublin, H. T., Estes, J. A., Everatt, K. T., Goswami, V. R., Galetti, M., Hayward, M., Hedges, S., Hoffmann, M., Hunter, L. T. B., Kerley, G. I. H., Letnic, M., Levi, T., Maisels, F., Morrison, J. C., Nelson, M. P., Newsome, T. M., Painter, L., Pringle, R. M., Sandom, C. J., Terborgh, J., Treves, A., Van Valkenburgh, B., Vucetich, J. A., Wirsing, A. J., Wallach, A. D., Wolf, C., Woodroffe, R., Young, H. & Zhang, L., 1 Hyd 2016, Yn: BioScience. 66, 10, t. 807-812

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  8. Cyhoeddwyd

    Termite activity and decomposition are influenced by digging mammal reintroductions along an aridity gradient

    Coggan, N. V., Hayward, M. & Gibb, H., 1 Hyd 2016, Yn: Journal of Arid Environments. 133, October, t. 85-93

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  9. Cyhoeddwyd

    The reliability of evidence review methodology in environmental science and conservation

    O'Leary, B., Kvist, K., Bayliss, H. R., Derroire, G., Healey, J., Hughes, K., Kleinschroth, F., Sciberras, M., Woodcock, P. & Pullin, A., 1 Hyd 2016, Yn: Environmental Science and Policy. 64, t. 75-82

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  10. Cyhoeddwyd

    A review of Pinaceae resistance mechanisms against needle and shoot pathogens with a focus on the Dothistroma–Pinus interaction

    Fraser, S., Martin-Garcia, J., Perry, A., Kabir, M. S., Owen, T., Solla, A., Brown, A. V., Bulman, L. S., Barnes, I., Hale, M., Vasconcelos, M. W., Lewis, K. J., Doğmuş-Lehtijarvi, H. T., Markovskaja, S., Woodward, S. & Bradshaw, R. E., Hyd 2016, Yn: Forest Pathology. 46, 5, t. 453-471

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  11. Cyhoeddwyd

    A simplified method to estimate tidal current effects on the ocean wave power resource

    Hashemi, M. R., Grilli, S. T. & Neill, S., Hyd 2016, Yn: Renewable Energy. 96, Part A, t. 257-269

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  12. Cyhoeddwyd

    Bottom trawling affects fish condition through changes in the ratio of prey availability to density of competitors

    Hiddink, J., Moranta, J., Balestrini, S., Sciberras, M., Cendrier, M., Bowyer, R., Kaiser, M., Skold, M., Jonsson, P., Bastardie, F. & Hinz, H., Hyd 2016, Yn: Journal of Applied Ecology. 53, t. 1500-1510

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  13. Cyhoeddwyd

    Comparing the transitional behaviour of kaolinite and bentonite suspension flows

    Baas, J., Best, J. L. & Peakall, J., Hyd 2016, Yn: Earth Surface Processes and Landforms. 41, 13, t. 1911-1921

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  14. Cyhoeddwyd

    Dylunio 'Laser Tonfedd Ddeuol'

    Roberts, D. & Pierce, I., Hyd 2016, Yn: Gwerddon. 22, t. 75-93 18 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  15. Cyhoeddwyd

    Niche partitioning between invasive and native corixids (Hemiptera, Corixidae) in south-west Spain

    Coccia, C., Fry, B., Ramirez, F., Boyero, L., Bunn, S. E., Diz-Salgado, C., Walton, M., Le Vay, L. & Green, A. J., Hyd 2016, Yn: Aquatic Sciences. 78, 4, t. 779-791

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  16. Cyhoeddwyd

    Resilience of tropical dry forests – a meta-analysis of changes in species diversity and composition during secondary succession

    Derroire, G., Balvanera, P., Castellanos-Castro, C., Decocq, G., Kennard, D. K., Lebrija-Trejos, E., Leiva, J. A., Oden, P., Powers, J. S., Rico-Gray, V., Tigabu, M. & Healey, J. R., Hyd 2016, Yn: Oikos. 125, 10, t. 1386-1397

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  17. Cyhoeddwyd

    Temporal dynamics and persistence of sponge assemblages in a Central Pacific atoll lagoon

    Knapp, I. S. S., Williams, G. & Bell, J. J., Hyd 2016, Yn: Marine Ecology. 37, 5, t. 1147-1153

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  18. Cyhoeddwyd

    The family Ferroplasmaceae

    Golyshina, O., Lunsdorf, H. & Golyshin, P., 30 Medi 2016, Bergey's Manual of Systematics of Archaea and Bacteria. John Wiley & Sons, t. 1-3

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion CynhadleddPennodadolygiad gan gymheiriaid

  19. Cyhoeddwyd

    The genus Acidiplasma

    Golyshina, O., Lunsdorf, H. & Golyshin, P., 30 Medi 2016, Bergey's Manual of Systematics of Archaea and Bacteria. t. 1-7

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion CynhadleddPennodadolygiad gan gymheiriaid

  20. Cyhoeddwyd

    The genus Ferroplasma

    Golyshina, O., Lunsdorf, H. & Golyshin, P., 30 Medi 2016, Bergey's Manual of Systematics of Archaea and Bacteria. John Wiley & Sons, t. 1-6

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion CynhadleddPennodadolygiad gan gymheiriaid

  21. Cyhoeddwyd

    Low-dispersion 180° phase shifter using two synchronized MEMS switches

    Gholizadeh, V., Asadi, M. J., Ning, Y., Palego, C., Hwang, J. C. M., Scarbrough, D. & Goldsmith, C. L., 29 Medi 2016, Lester Eastman Conference (LEC), 2016.

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion CynhadleddCyfraniad i Gynhadleddadolygiad gan gymheiriaid

  22. Cyhoeddwyd

    Moving the Goalposts: Possible Effects of Changes in Opportunity Costs on Conservation Triage

    Woodcock, P. & Hayward, M., 28 Medi 2016, Yn: Frontiers in Ecology and Evolution. 4, 113

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  23. Cyhoeddwyd

    Trade-offs in marine protection: multispecies interactions within a community-led temperate marine reserve

    Howarth, L. M., Dubois, P., Gratton, P., Judge, M., Christie, B., Waggitt, J. J., Hawkins, J. P., Roberts, C. M. & Stewart, B. D., 28 Medi 2016, Yn: ICES Journal of Marine Science. 74, 1, t. 263-276

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  24. Cyhoeddwyd

    Wind-driven mixing at intermediate depths in an ice-free Arctic Ocean

    Lincoln, B., Rippeth, T., Lenn, Y-D., Timmermans, M-L., Willaims, W. & Bacon, S., 28 Medi 2016, Yn: Geophysical Research Letters. 43, 18, t. 9749-9756

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  25. Cyhoeddwyd

    Plant diversity patterns in neotropical dry forests and their conservation implications

    DRYFLOR, McDonald, M., Banda-R, K., Delgado-Salinas, A., Dexter, K. G., Linares-Palomino, R., Oliveira-Filho, A., Prado, D., Pullan, M., Quintana, C., Riina, R., Rodríguez M, G. M., Weintritt, J., Acevedo-Rodríguez, P., Adarve, J., Álvarez, E., Aranguren B., A., Arteaga, J. C., Aymard, G., Castaño, A. & Ceballos-Mago, N., 23 Medi 2016, Yn: Science. 353, 6306, t. 1383-1387 4 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  26. Cyhoeddwyd

    The Application of Long-Lived Bivalve Sclerochronology in Environmental Baseline Monitoring

    Steinhardt, J., Butler, P., Carroll, M. & Hartley, J., 23 Medi 2016, t. 1-26. 26 t.

    Allbwn ymchwil: Cyfraniad at gynhadleddPapuradolygiad gan gymheiriaid

  27. Cyhoeddwyd

    Draft Genome Sequence of Clostridium sp. strain W14A isolated from a cellulose-degrading biofilm in a landfill leachate microcosm

    Ransom-Jones, E. & McDonald, J., 22 Medi 2016, Yn: Genome Announcements. 4, 5, e0098516.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  28. Cyhoeddwyd

    Method for preparing a herbicidal compound

    Tverezovskiy, V., Braganca, R., Howard, F. A., Gould, S. M., Fowler, P. A. & Baird, M., 20 Medi 2016, 26 Tach 2016, Dyddiad blaenoriaeth 26 Tach 2016

    Allbwn ymchwil: Patent

  29. Cyhoeddwyd

    Corrigendum

    Kleinschroth, F., Healey, J., Sist, P., Mortier, F. & Gourlet-Fleury, S., 17 Medi 2016, Yn: Journal of Applied Ecology. 53, 6, t. 1890 1 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  30. Cyhoeddwyd

    Analogues of Marine Guanidine Alkaloids Are in Vitro Effective against Trypanosoma cruzi and Selectively Eliminate Leishmania (L.) infantum Intracellular Amastigotes

    Martins, L. F., Mesquita, J. T., Pinto, E. G., Costa-Silva, T. A., Borborema, S. E. T., Galisteo Junior, A. J., Neves, B. J., Andrade, C. H., Bennett, E., Black, G., Harper, P., Evans, D., Fituri, H., Leyland, J. P., Martin, C., Roberts, T., Thornhill, A. J., Vale, S., Howard-Jones, A., Thomas, D., Williams, H. L., Overman, L., Berlinck, R., Murphy, P. & Tempone, A., 16 Medi 2016, Yn: Journal of natural products. 79, 9, t. 2202-2210 9 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  31. Cyhoeddwyd

    Recent advances in crystalline hydrated borates with non-metal or transition-metal complex cations

    Beckett, M., 15 Medi 2016, Yn: Coordination Chemistry Reviews. 323, t. 2-14

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  32. Cyhoeddwyd

    The ecologist’s field guide to sequence-based identification of biodiversity

    Creer, S., Deiner, K., Frey, S., Porazinska, D., Taberlet, P., Thomas, W. K., Potter, C. & Bik, H. M., 13 Medi 2016, Yn: Methods in Ecology and Evolution. 7, t. 1008-1018 11 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  33. Cyhoeddwyd

    Biobasierte In-situ-Gewinnung von Industriemetallen aus unzugänglichen Lägerstatten zur EU-Rohstoffsicherung

    Matthies, R., Hejny, H., Hirsch, K., Kahnt, R., Marten, H. & Johnson, D., 12 Medi 2016, Yn: Georesources Zeitschrift. t. 34-38

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  34. Cyhoeddwyd

    Mycobacterium tuberculosis-associated synthetic mycolates differentially exert immune stimulatory adjuvant activity

    Smet, M., Pollard, C., De Beuckelaer, A., Van Hoecke, L., Beken, S. V., De Koker, S., Al-Dulayymi, J. R., Huygen, K., Verschoor, J., Baird, M. & Grooten, J., 7 Medi 2016, Yn: European Journal of Immunology. 46, t. 2149-2154 6 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  35. Cyhoeddwyd

    Single-Walled Carbon-Nanotubes-Based Organic Memory Structures

    Mabrook, M., Fakher, S., Nejm, R., Ayesh, A., AL-Ghaferi, A. & Zeze, D., 2 Medi 2016, Yn: Molecules. 21, 9, t. 1166 11 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  36. Cyhoeddwyd

    Improving livestock production efficiencies presents a major opportunity to reduce sectoral greenhouse gas emissions

    Hyland, J., Styles, D., Jones, D. & Williams, A., 1 Medi 2016, Yn: Agricultural Systems. 147, t. 123-131

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  37. Cyhoeddwyd

    Minutes matter: brief hatching asynchrony adversely affects late-hatched hihi nestlings, but not life beyond the nest

    MacLeod, K. J., Brekke, P., Ewen, J. G. & Thorogood, R., 1 Medi 2016, Yn: Animal Behaviour. 119, t. 111-118

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  38. Cyhoeddwyd

    Plasticity in response to feed availability: Does feeding regime influence the relative growth performance of domesticated, wild and hybrid Atlantic salmon Salmo salar parr?

    Harvey, A., Solberg, M. F., Glover, K. A., Taylor, M. I., Creer, S. & Carvalho, G., 1 Medi 2016, Yn: Journal of Fish Biology. 89, 3, t. 1754-1768

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  39. Cyhoeddwyd

    Towards ethical robots: Revisiting Braitenberg's vehicles

    Headleand, C. J., Cenydd, L. A. & Teahan, W., 1 Medi 2016, 2016 SAI Computing Conference (SAI). t. 469-477 9 t.

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion CynhadleddCyfraniad i Gynhadleddadolygiad gan gymheiriaid

  40. Cyhoeddwyd

    Use of a coupled soil-root-leaf model to optimise phosphate fertiliser use efficiency in barley

    Heppell, J., Payvandi, S., Talboys, P., Zygalakis, K. C., Langton, D., Sylvester-Bradley, R., Edwards, A. C., Walker, R., Withers, P., Jones, D. & Roose, T., 1 Medi 2016, Yn: Plant and Soil. 406, 1-2, t. 341-357

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  41. Cyhoeddwyd

    Warming alters competition for organic and inorganic nitrogen between co-existing grassland plant species

    Kuster, T. M., Wilkinson, A., Hill, P. W., Bardgett, R. D. & Jones, D., 1 Medi 2016, Yn: Plant and Soil. 406, 1-2, t. 117-129

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  42. Cyhoeddwyd

    Antibacterial Activity and Mechanism of Action of a novel Antimicrobial Peptide Palg1 and its potential against Enterococcus Faecalis Infection

    Oyama, L., Crochet, J. -A., Girdwood, S., Cookson, A., Prive, F., Fernandez-Fuentes, N., Edwards, J., Mikut, R., Hilpert, K., Golyshin, P., Golyshina, O., Creevey, C. & Huws, S., Medi 2016, Yn: Journal of Peptide Science. 22, S2, t. S188-S188

    Allbwn ymchwil: Cyfraniad at gyfnodolynCrynodeb Cyfarfodadolygiad gan gymheiriaid

  43. Cyhoeddwyd

    Connectivity in the deep: Phylogeography of the velvet belly lanternshark

    Gubili, C., Macleod, K., Perry, W., Hanel, P., Batzakas, I., Farrell, E. D., Lynghammar, A., Mancusi, C., Mariani, S., Menezes, G. M., Neat, F., Scarcella, G. & Griffiths, A. M., Medi 2016, Yn: Deep Sea Research Part I: Oceanographic Research Papers. 115, t. 233-239

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  44. Cyhoeddwyd

    Constructed wetlands may lower inorganic nutrient inputs but enhance DOC loadings into a drinking water reservoir in North Wales

    Scholz, C., Dunn, C., Jones, T., West, M., Ehbair, A. & Freeman, C., Medi 2016, Yn: Environmental Science and Pollution Research. 23, 18, t. 18192-18199

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  45. Cyhoeddwyd

    Detection, identification and typing of Acidithiobacillus species and strains: a review

    Nuñez, H., Covarrubias, P. C., Moya-Beltrán, A., Issotta, F., Atavales, J., Acuña, L. G., Johnson, D. B. & Quatrini, R., Medi 2016, Yn: Research in Microbiology. 167, 7, t. 555-567

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  46. Cyhoeddwyd

    Environmental enrichment in captive juvenile thornback rays, Raja clavata (Linnaeus 1758)

    Greenway, E., Jones, K. & Cooke, G., Medi 2016, Yn: Applied Animal Behaviour Science. 182, t. 86-93

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  47. Cyhoeddwyd

    Hawaiʻi Coral Disease database (HICORDIS): species-specific coral health data from across the Hawaiian archipelago

    Caldwell, J. M., Burns, J. H. R., Couch, C., Ross, M., Runyon, C., Takabayashi, M., Vargas-Ángel, B., Walsh, W., Walton, M., White, D., Williams, G. & Heron, S. F., Medi 2016, Yn: Data in Brief. 8, t. 1054-1058

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  48. Cyhoeddwyd

    Inter-annual variability of headland sandbanks affecting nearshore wave climates and flood risk.

    Rulent, J., Lewis, M., Vafeidis, A., Scott, T., Conley, D. & Neill, S., Medi 2016.

    Allbwn ymchwil: Cyfraniad at gynhadleddMurlen

  49. Cyhoeddwyd

    Isolation and characterisation of mineral-oxidizing “Acidibacillus” spp. from mine sites and geothermal environments in different global locations

    Holanda, R., Hedrich, S., Nancucheo, I., Oliveira, G., Grail, B. & Johnson, D., Medi 2016, Yn: Research in Microbiology. 167, 7, t. 613-623

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  50. Cyhoeddwyd

    Prioritization of knowledge-needs to achieve best practices for bottom trawling in relation to seabed habitats

    Kaiser, M. J., Hilborn, R., Jennings, S., Amaroso, R., Andersen, M., Balliet, K., Barratt, E., Bergstad, O. A., Bishop, S., Bostrom, J. L., Boyd, C., Bruce, E. A., Burden, M., Carey, C., Clermont, J., Collie, J. S., Delahunty, A., Dixon, J., Eayrs, S., Edwards, N., Fujita, R., Gauvin, J., Gleason, M., Harris, B., He, P., Hiddink, J. G., Hughes, K. M., Inostroza, M., Kenny, A., Kritzer, J., Kuntzsch, V., Lasta, M., Lopez, I., Loveridge, C., Lynch, D., Masters, J., Mazor, T., McConnaughey, R. A., Moenne, M., Francis, Nimick, A. M., Olsen, A., Parker, D., Parma, A., Penney, C., Pierce, D., Pitcher, R., Pol, M., Richardson, E., Rijnsdorp, A. D., Rilatt, S., Rodmell, D. P., Rose, C., Sethi, S. A., Short, K., Suuronen, P., Taylor, E., Wallace, S., Webb, L., Wickham, E., Wilding, S. R., Wilson, A., Winger, P. & Sutherland, W. J., Medi 2016, Yn: Fish and Fisheries. 17, 3, t. 637-663

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  51. Cyhoeddwyd

    Systematic bias in baroclinic energy estimates in shelf seas

    Stephenson, G., Green, M. & Inall, M. E., Medi 2016, Yn: Journal of Physical Oceanography. 46, 9

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid