Coleg Gwyddoniaeth a Pheirianneg

  1. Cyhoeddwyd

    The unprecedented 2022 extreme summer heatwaves increased harmful cyanobacteria blooms

    Li, N., Zhang, Y., Zhang, Y., Shi, K., Qian, H., Yang, H., Niu, Y., Qin, B., Zhu, G., Woolway, R. I. & Jeppesen, E., 20 Hyd 2023, Yn: Science of the Total Environment. 896, 165312.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  2. Cyhoeddwyd

    The unique centromeric chromatin structure of Schizosaccharomyces pombe is maintained during meiosis.

    Mcfarlane, R. J., Smirnova, J. B. & McFarlane, R. J., 31 Mai 2002, Yn: Journal of Biological Chemistry. 277, 22, t. 19817-19822

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  3. Cyhoeddwyd

    The ultimate opportunists: consumers of seston

    Coma, R., Ribes, M., Gili, J. M. & Hughes, R. N., 10 Medi 2001, Yn: Marine Ecology Progress Series. 219, t. 305-308

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  4. Cyhoeddwyd

    The transmission performance of 100Gb/s 32QAM WDM signals.

    Tang, J. & Tang, J. M., 1 Ion 2003, 2003 gol. Unknown.

    Allbwn ymchwil: Llyfr/AdroddiadAdroddiad Comisiwn

  5. Cyhoeddwyd

    The transfer of natural resource management rights to local communities

    Pollini, J., Hockley, N., Muttenzer, F. D., Ramamonjisoa, B. S. & Scales, I. R. (gol.), 6 Maw 2014, Conservation and Environmental Management in Madagascar. 2014 gol. Routledge, t. 172-192

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion CynhadleddPennod

  6. Cyhoeddwyd

    The transcriptional programme of Salmonella enterica serovar Typhimurium reveals a key role for tryptophan metabolism in biofilms.

    Hamilton, S., Bongaerts, R. J., Mulholland, F., Cochrane, B., Porter, J., Lucchini, S., Lappin-Scott, H. M. & Hinton, J. C., 11 Rhag 2009, Yn: BMC Genomics. 10, t. 599

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  7. Cyhoeddwyd

    The trans-tissue pathway and chemical fate of C-14 photoassimilate in carrot taproot

    Korolev, A., Tomos, A. D. & Farrar, J., 1 Awst 2000, Yn: New Phytologist. 147, 2, t. 299-306

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  8. Cyhoeddwyd

    The trans-Himalayan flights of bar-headed geese (Anser indicus)

    Hawkes, L. A., Balachandran, S., Nyambayar, B., Butler, P. J., Frappell, P. B., Milsom, W. K., Tseveenmyadag, N., Newman, S., Scott, G. R., Sathiyaselvam, P., Takekawa, J. T., Wikelski, M. & Bishop, C. M., 7 Meh 2011, Yn: PNAS. 108, 23, t. 9516-9519

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  9. Cyhoeddwyd

    The toxicity of Irgarol 1051 and Sea-Nine 211 to the non-target macroalga Fucus serratus Linnaeus, with the aid of an image capture and analysis system.

    Braithwaite, R. A. & Fletcher, R. L., 14 Medi 2005, Yn: Journal of Experimental Marine Biology and Ecology. 322, 2, t. 111-121

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  10. Cyhoeddwyd

    The total synthesis of Goniofufurone

    Murphy, P. J. & Dennison, S. T., 23 Gorff 1993, Yn: Tetrahedron. 49, 30, t. 6695-6700 6 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  11. Cyhoeddwyd

    The tidal flux in the Firth of Forth

    Elliott, A. J. & Neill, S. P., 1 Maw 2007, Yn: Proceedings of the Institution of Civil Engineers - Maritime Engineering. 160, 1, t. 25-32

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  12. Cyhoeddwyd

    The tidal evolution of the NW European shelf seas from the Last Glacial Maximum to the present day: implications for the future.

    Scourse, J. D., Uehara, K., Horsburgh, K., Lambeck, K. & Purcell, A., 1 Ion 2003.

    Allbwn ymchwil: Cyfraniad at gynhadleddPapur

  13. Cyhoeddwyd

    The systemic and local acute phase response following acute brain injury.

    Wilcockson, D. C., Campbell, S. J., Anthony, D. C. & Perry, V. H., 1 Maw 2002, Yn: Journal of Cerebral Blood Flow and Metabolism. 22, 3, t. 318-326

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  14. Cyhoeddwyd

    The synthesis, molecular structure and fluxional properties of the 1-phenylpropyne complex WI2(CO){Ph2P(CH2)PPh2}(eta(2)-MeC2Ph)

    Baker, P. K., Beckett, M. A., Drew, M. G. B., Godinho, S., Robertson, N. & Underhill, A. E., 1998, Yn: Inorganica Chimica Acta. 279, 1, t. 65-68 4 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  15. Cyhoeddwyd

    The synthesis of single enantiomers of α-mycolic acids of M.tuberculosis with alternative cyclopropane stereochemistries

    Don Lawson, C., Maza-Iglesias, M., Sirhan, M. M., Al-Dulayymi, J. & Baird, M., 2017, Yn: SynOpen. 01, 01, t. 0103-0116 13 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  16. Cyhoeddwyd

    The synthesis of single enantiomers of trans-alkene-containing mycolic acids

    Koza, G., Schubert-Rowles, R., Theunissen, C., Al-Dulayymi, J. & Baird, M. S., 30 Rhag 2009, Yn: Tetrahedron Letters. 50, 52, t. 7259-7262

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  17. Cyhoeddwyd

    The synthesis of single enantiomers of trans-alkene containing mycolic acids and related sugar esters

    Ali, H., Koza, G., Hameed, R., Rowles, R., Davies, C., Al-Dulayymi, J. R., Gwenin, C. & Baird, M., 10 Tach 2016, Yn: Tetrahedron. 72, 45, t. 7143-7158 15 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  18. Cyhoeddwyd

    The synthesis of single enantiomers of mycobacterial ketomycolic acids containing cis-cyclopropanes.

    Koza, G., Theunissen, C., Al-Dulayymi, J. & Baird, M. S., 5 Rhag 2009, Yn: Tetrahedron. 65, 49, t. 10214-10229

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  19. Cyhoeddwyd

    The synthesis of single enantiomers of meromycolic acids from mycobacterial wax esters

    Al-Dulayymi, J., Baird, M. S., Roberts, E. & Minnikin, D. E., 18 Rhag 2006, Yn: Tetrahedron. 62, 51, t. 11867-11880

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  20. Cyhoeddwyd

    The synthesis of single enantiomers of a meromycolic acid

    Al Dulayymi, JR., Baird, MS. & Roberts, E., 2 Medi 2000, Yn: Tetrahedron Letters. 41, 36, t. 7107-7110 4 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  21. Cyhoeddwyd

    The synthesis of one enantiomer of the α-methyl-trans-cyclopropane unit of mycolic acids

    Al-Dulayymi, J., Baird, M., Mohammed, H., Roberts, E. & Clegg, W., 15 Mai 2006, Yn: Tetrahedron. 62, 20, t. 4851-4862

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  22. Cyhoeddwyd

    The synthesis of methoxy and keto mycolic acids containing methyl-trans-cyclopropanes

    Koza, G., Muzael, M., Schubert-Rowles, R. R., Theunissen, C., Al-Dulayymi, J. & Baird, M. S., 29 Gorff 2013, Yn: Tetrahedron. 69, 30, t. 6285-6296

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  23. Cyhoeddwyd

    The synthesis of both enantiomers of lactobacillic acid and mycolic acid analogues.

    Coxon, GD., Knobl, S., Roberts, E., Baird, MS., Al Dulayymi, JR., Besra, GS., Brennan, PJ. & Minnikin, DE., 3 Medi 1999, Yn: Tetrahedron Letters. 40, 36, t. 6689-6692 4 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  24. Cyhoeddwyd

    The synthesis of an analogue of the locust CRF-like diuretic peptide, and the biological activities of this and some C-terminal fragments.

    Goldsworthy, G. J., Chung, J. S., Simmonds, S. J., Tatari, M., Varouni, S. & Poulos, C. P., 1 Hyd 2003, Yn: Peptides. 24, 10, t. 1607-1613

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  25. Cyhoeddwyd

    The synthesis of a single enantiomer of a major α-mycolic acid of M. tuberculosis

    Al-Dulayymi, J., Baird, M. S. & Roberts, E., 12 Rhag 2005, Yn: Tetrahedron. 61, 50, t. 11939-11951

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  26. Cyhoeddwyd

    The synthesis of a single enantiomer of a major a-mycolic acid of Mycobacterium tuberculosis

    Al-Dulayymi, J., Baird, M. S. & Roberts, E., 1 Ion 2003, Yn: Chemical Communications. 2, t. 228-229

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  27. Cyhoeddwyd

    The synthesis of a major α′-mycolic acid of Mycobacterium smegmatis.

    Muzael, M., Koza, G., Al-Dulayymi, J. & Baird, M. S., 1 Medi 2010, Yn: Chemistry and Physics of Lipids. 163, 7, t. 678-684

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  28. Cyhoeddwyd

    The synthesis of (11R,12S)-lactobacillic acid and its enantionmer.

    Coxon, G. D., Al-Dulayymi, J., Baird, M. S., Knobl, S., Roberts, E. & Minnikin, D. E., 2 Mai 2003, Yn: Tetrahedron Asymmetry. 14, 9, t. 1211-1222

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  29. Cyhoeddwyd

    The synthesis and characterisation of a poly (maleimide ether) containing pendent thiophene rings

    Edge, S., Charlton, A., Varma, K. S., Underhill, A., Hansen, T. K., Becher, J. & Kathirgamanathan, P., 1992, Yn: Journal of Polymer Science Part A: Polymer Chemistry. 30, 13, t. 2773-2780

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  30. Cyhoeddwyd

    The synthesis and biological activity of the marine metabolite cylindrospermopsin

    Murphy, P. J. & Thomas, C. W., 1 Medi 2001, Yn: Chemical Society Reviews. 30, 5, t. 303-312

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  31. Cyhoeddwyd

    The sweet and the bitter: Intertwined positive and negative social impacts of a biodiversity offset

    Bidaud, C., Schreckenberg, K., Rabeharison, M., Ranjatson, P., Gibbons, J. & Jones, J. P. G., 2017, Yn: Conservation & Society. 15, 1, t. 1-13

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  32. Cyhoeddwyd

    The sustainability of rice‐crayfish coculture systems: a mini review of evidence from Jianghan plain in China

    Hou, J., Styles, D., Cao, Y. & Ye, X., 1 Gorff 2021, Yn: Journal of the Science of Food and Agriculture. 101, 9, t. 3843-3853 11 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  33. Cyhoeddwyd

    The supplementation of a prebiotic improves the microbial community in the gut and the skin of Atlantic salmon (Salmo salar)

    Baumgärtner, S., James, J. & Ellison, A., 1 Awst 2022, Yn: Aquaculture Reports. 25, 101204.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  34. Cyhoeddwyd

    The summer distribution of coastal minke whales (Balaenoptera acutorostrata) in the southern outer Moray Firth, NE Scotland, in relation to co-occurring mesoscale oceanographic features.

    Tetley, M. J., Mitchelson-Jacob, E. G. & Robinson, K. P., 15 Awst 2008, Yn: Remote Sensing of the Environment. 112, 8, t. 3449-3454

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  35. Cyhoeddwyd

    The structure of dissipation in the western Irish Sea front.

    Simpson, J. H., Green, M., Rippeth, T. P., Osborn, T. R. & Nimmo-Smith, W. A., 1 Meh 2009, Yn: Journal of Marine Systems. 77, 4, t. 428-440

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  36. Cyhoeddwyd

    The structure and functioning of the northern Baltic Sea ice assemblages along a salinity gradient from freshwater source to the open sea.

    Kaartokallio, H., Granskog, M. A., Thomas, D. N., Ehn, J. & Kuosa, H., 1 Ion 2003.

    Allbwn ymchwil: Cyfraniad at gynhadleddPapur

  37. Cyhoeddwyd

    The structural and functional diversification of the Toxicofera reptile venom system

    Wuster, W., Fry, B. G., Casewell, N. R., Wüster, W., Vidal, N., Young, B. & Jackson, T. N., 15 Medi 2012, Yn: Toxicon. 60, 4, t. 434-448

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  38. Cyhoeddwyd

    The strategic significance of wastewater sources to pollutant phosphorus levels in English rivers and to environmental management for rural, agricultural and urban catchments

    Neal, C., Jarvie, H. P., Withers, P., Whitton, B. A. & Neal, M., 1 Maw 2010, Yn: Science of the Total Environment. 408, 7, t. 1485-1500

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  39. Cyhoeddwyd

    The stoichiometric dissociation constants of carbonic acid in seawater brines from 298 to 267 K

    Papadimitriou, E., Loucaides, S., Rerolle, V., Kennedy, D., Achtberberg, E. P., Dickson, A. G., Mowlem, M. & Kennedy, H., 1 Ion 2018, Yn: Geochimica et Cosmochimica Acta. 220, t. 55-70

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  40. Cyhoeddwyd

    The status of the world's land and marine mammals: diversity, threat, and knowledge.

    Jenkins, R., Schipper, J., Chanson, J. S., Chiozza, F., Cox, N. A., Hoffman, M., Katariya, V., Lamoreux, J., Rodrigues, A. S., Stuart, S. N., Temple, H. J., Baille, J., Boitani, L., Lacher, T. E., Mittermeier, R. A., Smith, A. T., Absolon, D., Aguiar, J. M., Amori, G., Bakkour, N., Baldi, R., Berridge, R. J., Bielby, J., Black, P. A., Blanc, J. J., Brooks, T. M., Burton, J. A., Butynski, T. M., Catullo, G., Chapman, R., Cokeliss, Z., Collen, B., Conroy, J., Cooke, J. G., Da Fonseca, G. A., Derocher, A. E., Dublin, H. T., Duckworth, J. W., Emmons, L., Emslie, R. H., Festa-Biancet, M., Foster, M., Foster, S., Garshelis, D. L., Gates, C., Gimenez-Dixon, M., Gonzalez, S., Gonzalez-Maya, J., Good, T. C., Hammerson, G., Hammond, P. S., Happold, D., Happold, M., Hare, J., Harris, R. B., Hawkins, C. E., Haywood, M., Heaney, L. R., Hedges, S., Helgen, K. M., Hilton-Taylor, C., Hussain, S. A., Ishii, N., Jefferson, T. A., Jenkins, R. K., Johnston, C. H., Keith, M., Kingdon, J., Knox, D. H., Kovacs, K. M., Langhammer, P., Leus, K., Lewison, R., Lichtenstein, G., Lowry, L. F., Macavoy, Z., Mace, G. M., Mallon, D. P., Masi, M., McKnight, M. W., Medellin, R. A., Medici, P., Mills, G., Moehlman, P. D., Molur, S., Mora, A., Nowell, K., Oates, J. F., Olech, W., Oliver, W. R., Opera, M., Patterson, B. D., Perrin, W. F., Polidoro, B. A., Pollock, C., Powel, A., Protas, Y., Racey, P., Ragle, J., Ramani, P., Rathbun, G., Reeves, R. R., Reilly, S. B., Reynolds, J. E., Rondinini, C., Rosell-Ambal, R. G., Rulli, M., Rylands, A. B., Savini, S., Schank, C. J., Sechrest, W., Self-Sullivan, C., Shoemaker, A., Sillero-Zubiri, C., De Silva, N., Smith, D. E., Srinivasulu, C., Stephenson, P. J., Van Strien, N., Talukdar, B. K., Taylor, B. L., Timmins, R., Tirira, D. G., Tognelli, M. F., Tsytsulina, K., Veiga, L. M., Vie, J. C., Williamson, E. A., Wyatt, S. A., Xie, Y. & Young, B. E., 10 Hyd 2008, Yn: Science. 322, 5899, t. 225-230

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  41. Cyhoeddwyd

    The status of Arctic charr Salvelinus alpinus in Britain and Ireland.

    Maitland, P. S., Winfield, I. J., McCarthy, I. D. & Igoe, F., 1 Maw 2007, Yn: Ecology of Freshwater Fish. 16, 1, t. 6-19

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  42. Cyhoeddwyd

    The statistical design of feeding experiments

    Ruohonen, K., Kettunen, J., King, J. W., Houlihan, D. (gol.), Boujard, T. (gol.) & Jobling, M. (gol.), 1 Ion 2001, Feed Intake in Fish. 2001 gol. Blackwell Scientific, t. 88-107

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion CynhadleddPennod

  43. Cyhoeddwyd

    The spread of genetic constructs in natural insect populations.

    Braig, H. R., Yan, G., Letourneau, D. K. (gol.) & Burrows, B. E. (gol.), 1 Ion 2002, Genetically Engineered Organisms: Assessing Environmental and Human Health Effects. 2002 gol. CRC Press, t. 251-314

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion CynhadleddPennod

  44. Cyhoeddwyd

    The spotted gar genome illuminates vertebrate evolution and facilitates human-teleost comparisons

    Braasch, I., Gehrke, A. R., Smith, J. J., Kawasaki, K., Manousaki, T., Pasquier, J., Amores, A., Desvignes, T., Batzel, P., Catchen, J., Berlin, A. M., Campbell, M. S., Barrell, D., Martin, K. J., Mulley, J. F., Ravi, V., Lee, A. P., Nakamura, T., Chalopin, D., Fan, S., Wcisel, D., Cañestro, C., Sydes, J., Beaudry, F. E., Sun, Y., Hertel, J., Beam, M. J., Fasold, M., Ishiyama, M., Johnson, J., Kehr, S., Lara, M., Letaw, J. H., Litman, G. W., Litman, R. T., Mikami, M., Ota, T., Saha, N. R., Williams, L., Stadler, P. F., Wang, H., Taylor, J. S., Fontenot, Q., Ferrara, A., Searle, S. M., Aken, B., Yandell, M., Schneider, I., Yoder, J. A., Volff, J., Meyer, A., Amemiya, C. T., Venkatesh, B., Holland, P. W., Guiguen, Y., Bobe, J., Shubin, N. H., Di Palma, F., Alföldi, J., Lindblad-Toh, K. & Postlethwait, J. H., 7 Maw 2016, Yn: Nature Genetics.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  45. Cyhoeddwyd

    The spatial ecology of Rajidae from mark-recapture tagging and its implications for assessing fishery interactions and efficacy of Marine Protected Areas

    Simpson, S., Humphries, N. E. & Sims, D. W., 1 Awst 2020, Yn: Fisheries Research. 228, 105569.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  46. Cyhoeddwyd

    The sorption of water vapour by anhydride modified softwood

    Hill, C., Papadopoulos, A. N. & Hill, C. A., 1 Rhag 2003, Yn: Wood Science and Technology. 37, 3-4, t. 221-231

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  47. Cyhoeddwyd

    The sorption of Volatile Organic Compounds (VOCS) by modified MDF panels and effects on mould colonisation and growth

    Stefanowski, B. K., Stefanowski, B., Curling, S. F. & Ormondroyd, G. A., 7 Hyd 2015, t. 175-184.

    Allbwn ymchwil: Cyfraniad at gynhadleddPapur

  48. Cyhoeddwyd

    The solid-state partitioning of contaminant metals and As in river channel sediments of the mining affected Tisa drainage basin, northwestern Romania and eastern Hungary

    Bird, G., Brewer, P., Macklin, M., Balteanu, D., Driga, B., Serban, M. & Zaharia, S., 1 Ion 2003, Yn: Applied Geochemistry. 18, 10, t. 1583-1595

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  49. Cyhoeddwyd

    The soil microbial community and plant biomass differentially contribute to the retention and recycling of urinary-N in grasslands

    Reay, M. K., Marsden, K., Powell, S., Rivera, L. M., Chadwick, D., Jones, D. L. & Evershed, R. P., 1 Mai 2023, Yn: Soil Biology and Biochemistry. 180, 109011.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  50. Cyhoeddwyd

    The smalleye stingray Dasyatis microps (Myliobatiformes: Dasyatidae) in the Gulf

    Moore, A., 2010, Yn: Zoology in the Middle East. 49, t. 101-103

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid