Prifysgol Bangor

  1. Erthygl › Ymchwil › Adolygwyd gan gymheiriaid
  2. Cyhoeddwyd

    High intensity fire accelerates accumulation of a stable carbon pool in permafrost peatlands under climate warming

    Gao, C., Wang, G., Cong, J., Freeman, C., Jiang, M. & Qin, L., 15 Meh 2023, Yn: Catena. 227, 107108.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  3. Cyhoeddwyd

    High level a initio exploration on the conversion of carbon dioxide into oxazolidinones: The mechanism and regioselectivity.

    Chasse, G. A., Mu, W. H., Chass, G. A. & Fang, D. C., 24 Gorff 2008, Yn: Journal of Physical Chemistry A. 112, 29, t. 6708-6714

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  4. Cyhoeddwyd

    High nitrogen availability reduces polyphenol content in Sphagnum peat

    Bragazza, L. & Freeman, C., 15 Mai 2007, Yn: Science of the Total Environment. 377, 2-3, t. 439-443

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  5. Cyhoeddwyd

    High nuclearity Ni(II) cages from hydroxamate ligands

    McDonald, C., Sanz, S., Brechin, E. K., Singh, M. K., Rajaraman, G., Gaynor, D. & Jones, L. F., 13 Awst 2014, Yn: RSC Advances. 4, t. 38182-38191

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  6. Cyhoeddwyd

    High open-circuit voltage bulk-heterojunction solar cells by using new dendritic acceptor material

    Alshahrani, T. M., Mabrook, M. F., Alshahrani, T., EL-Betany, A., Mabrook, M., Tai, H. & McKeown, N. B., 23 Gorff 2013, Yn: Nanotechnology 2013: Bio Sensors, Instruments, Medical, Environment and Energy. 3, t. 572-575

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  7. Cyhoeddwyd

    High order Fano resonances and giant magnetic fields in dielectric microspheres

    Wang, J., Luk'yanchuk, B., Yue, L., Yan, B., Monks, J., Dhama, R., Minin, O., Minin, I., Huang, S. & Fedyanin, A., 30 Rhag 2019, Yn: Scientific Reports. 9, 1, 20293.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  8. Cyhoeddwyd

    High performance perovskite solar cells using Cu9S5 supraparticles incorporated hole transport layers

    Zhou, X., Li, Z., Deng, X., Yan, B., Wang, J., Chen, X. & Huang, S., 14 Awst 2019, Yn: Nanotechnology. 30, 44, 12 t., 445401 .

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  9. Cyhoeddwyd

    High performing AgNW transparent conducting electrodes with a sheet resistance of 2.5 Ω Sq−1 based upon a roll-to-roll compatible post-processing technique

    Kumar, D., Stoichkov, V., Brousseau, E., Smith, G. C. & Kettle, J., 28 Maw 2019, Yn: Nanoscale. 11, 12, t. 5760-5769 10 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  10. Cyhoeddwyd

    High representation of archaea across all depths in oxic and low-pH sediment layers underlying an acidic stream

    Distaso, M., Bargiela, R., Brailsford, F., Williams, G., Wright, S., Lunev, E. A., Toshchakov, S. V., Yakimov, M. M., Jones, D. L., Golyshin, P. & Golyshina, O., 17 Tach 2020, Yn: Frontiers in Microbiology. 11, t. 576520

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  11. Cyhoeddwyd

    High resolution HPLC-MS confirms overestimation of urea in soil by the diacetyl monoxime (DAM) colorimetric method

    Reay, M. K., Yates, C. A., Johnes, P. J., Arthur, C. J., Jones, D. L. & Evershed, R. P., Awst 2019, Yn: Soil Biology and Biochemistry. 135, t. 127-133

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  12. Cyhoeddwyd

    High resolution evidence for linkages between European Ice Sheet instability and Atlantic Meridional Overturning Circulation.

    Peck, V. L., Hall, I. R., Zahn, R., Elderfield, H., Grousset, F., Hemming, S. R. & Scourse, J. D., 1 Ion 2006, Yn: Earth and Planetary Science Letters. 243, 3-4, t. 476-488

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  13. Cyhoeddwyd

    High resolution last deglaciation record from the Congo Fan reveals significance of mangrove pollen and biomarkers as indicators of shelf transgression.

    Scourse, J. D., Marret, F., Versteegh, G. J., Jansen, J. H., Schefuss, E. & Van Der Plicht, J., 1 Ion 2005, Yn: Quaternary Research. 64, (1), t. 57-69

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  14. Cyhoeddwyd

    High resolution synchrotron imaging of wheat root hairs growing in soil and image based modelling of phosphate uptake

    Keyes, S. D., Daly, K. R., Gostling, N. J., Jones, D. L., Talkboys, P., Pinzer, B. R., Boardman, R., Sinclair, I., Marchant, A. & Roose, T., 1 Meh 2013, Yn: New Phytologist. 198, 4, t. 1023-1029

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  15. Cyhoeddwyd

    High temperature, low neutron cross-section highentropy alloys in the Nb-Ti-V-Zr system

    King, D. J. M., Cheung, S. T. Y., Humphry-Baker, S. A., Parkin, C., Couet, A., Cortie, M. B., Lumpkin, G. R., Middleburgh, S. & Knowles, A. J., Maw 2019, Yn: Acta Materialia. 166, t. 435-446

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  16. Cyhoeddwyd

    High throughput shotgun sequencing of eRNA reveals taxonomic and derived functional shifts across a benthic productivity gradient

    Broman, E., Bonaglia, S., Norkko, A., Creer, S. & Nascimento, F. J. A., Gorff 2021, Yn: Molecular Ecology. 30, 13, t. 3023-3039 17 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  17. Cyhoeddwyd

    High-Entropy Alloys for Advanced Nuclear Applications

    Pickering, E., Carruthers, A., Barron, P., Middleburgh, S., Armstrong, D. & Gandy, A., 11 Ion 2021, Yn: Entropy. 23, 1, 98.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  18. Cyhoeddwyd

    High-Q inverted silica microtoroid resonators monolithically integrated into a silicon photonics platform

    Richter, J., Nezhad, M. P., Hadam, B., Taubner, T., Knoch, J., Merget, F., Moscoso-Mártir, A. & Witzens, J., 15 Hyd 2018, Yn: Optics Express. 26, 21, t. 27418-27440

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  19. Cyhoeddwyd

    High-Throughput Method for Rapid Induction of Prophages from Lysogens and Its Application in the Study of Shiga Toxin-Encoding Escherichia coli Strains

    McDonald, J. E., Smith, D. L., Fogg, P. C., McCarthy, A. J. & Allison, H. E., 1 Ebr 2010, Yn: Applied and Environmental Microbiology. 76, 7, t. 2360-2365

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  20. Cyhoeddwyd

    High-Throughput Quantitative Genetic Interaction Mapping in the Fission Yeast Schizosaccharomyces pombe.

    Roguev, A., Ryan, C. J., Hartsuiker, E. & Krogan, N. J., Chwef 2018, Yn: Cold Spring Harbor Protocols. 2018, 2, t. 75-81 7 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  21. Cyhoeddwyd

    High-intensity exercise and carbohydrate-reduced energy-restricted diet in obese individuals.

    Kubis, H., Sartor, F., De Morree, H., Matschke, V., Marcora, S. M., Milousis, A., Thom, J. M. & Kubis, H. P., 14 Gorff 2010, Yn: European Journal of Applied Physiology. 110, 5, t. 893-903

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  22. Cyhoeddwyd

    High-intensity interval training versus moderate-intensity steady-state training in UK cardiac rehabilitation programmes (HIIT or MISS UK): study protocol for a multicentre randomised controlled trial and economic evaluation

    McGregor, G., Nichols, S., Hamborg, T., Bryning, L., Edwards, R., Markland, D., Mercer, J., Birkett, S., Ennis, S., Powell, R., Begg, B., Haykowsky, M., Banerjee, P., Ingle, L., Shave, R. & Backx, K., 18 Tach 2016, Yn: BMJ Open. 6, 11, t. 1-9 9 t., 6:e012843.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  23. Cyhoeddwyd

    High-intensity training improves plasma glucose and acid-base regulation during intermittent maximal exercise in type 1 diabetes.

    Harmer, A. R., Chisholm, D. J., McKenna, M. J., Morris, N. R., Thom, J. M., Bennett, G. & Flack, J. R., 1 Mai 2007, Yn: Diabetes Care. 30, 5, t. 1269-1271

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  24. Cyhoeddwyd

    High-level athletes’ motivation for sport and susceptibility to doping: The mediating role of eating behaviours

    Scoffier-Mériaux, S., d’Arripe-Longueville, F., Woodman, T., Lentillon-Kaestner, V. & Corrion, K., 4 Maw 2021, Yn: European Journal of Sport Science. 21, 3, t. 412-420 9 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  25. Cyhoeddwyd

    High-level language processing regions are not engaged in action observation or imitation

    Pritchett, B. L., Hoeflin, C., Koldewyn, K., Dechter, E. & Fedorenko, E., Tach 2018, Yn: Journal of Neurophysiology. 120, 5, t. 2555-2570

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  26. Cyhoeddwyd

    High-precision branching ratio measurement and spin assignment implications for Ga-62 superallowed beta decay

    MacLean, A. D., Laffoley, A. T., Svensson, C. E., Ball, G. C., Leslie, J. R., Andreoiu, C., Babu, A., Bhattacharjee, S. S., Bidaman, H., Bildstein, V., Burbadge, C., Bowry, M., Cheng, C., Cross, D. S., Diaz-Varela, A., Dillmann, I., Dunlop, M. R., Dunlop, R., Evitts, L. J., Finlay, P., Gillespie, S., Garnsworthy, A. B., Garrett, P. E., Gopaul, E., Grinyer, G. F., Hackman, G., Jigmeddorj, B., Leach, K. G., Kassanda, E., McAfee, J., Moukaddam, M., Natzke, C., Nittala, S., Olaizola, B., Park, J., Paxman, C., Pore, J. L., Porzio, C., Radich, A. J., Ruotsalainen, P., Saito, Y., Sharma, S., Smallcombe, J., Sultana, R., Turko, J., Yates, D. & Zidar, T., 19 Tach 2020, Yn: Physical Review C. 102, 5, 054325.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  27. Cyhoeddwyd

    High-resolution maps show that rubber causes substantial deforestation

    Wang, Y., Hollingsworth, P. M., Zhai, D., West, C., Green, J. M. H., Chen, H., Hurni, K., Su, Y., Warren-Thomas, E., Xu, J. & Ahrends, A., 18 Hyd 2023, Yn: Nature. 623

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  28. Cyhoeddwyd

    High-resolution modelling of the shelf and open ocean adjacent to South Georgia, Southern Ocean

    Young, E. F., Meredith, M. P., Murphy, E. J. & Carvalho, G. R., 16 Rhag 2010, Yn: Deep Sea Research II: Topical Studies in Oceanography.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  29. Cyhoeddwyd

    High-sensitivity optical chemsensor based on etched D-fibre Bragg gratings

    Zhou, K., Chen, X., Zhang, L. & Bennion, I., 13 Ebr 2004, Yn: Electronics Letters. 40, 4, t. 232-234

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  30. Cyhoeddwyd

    High-speed transmission of adaptively modulated optical OFDM signals over multimode fibers using directly modulated DFBs

    Tang, J., Lane, P. M. & Shore, K. A., 1 Ion 2006, Yn: Journal of Lightwave Technology. 24, 1, t. 429-441

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  31. Cyhoeddwyd

    High-sugar perennial ryegrass as a feed-stock for bioconversion to platform chemicals

    Winters, A. L., Leemans, D., S. M., M., Pippel, J., Lovatt, A., Charlton, A. & Gallagher, J., 2010, Yn: Aspects of Applied Biology. 101, t. 79-86

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  32. Cyhoeddwyd

    High-throughput DNA sequencing of museum specimens sheds light on the long-missing species of the Bokermannohyla claresignata group (Anura: Hylidae ...

    Lyra, M., Pinheiro, P. D. P., Lourenco, A. C., Pezzuti, T. L., Baeta, D., Barlow, A., Hofreiter, M., Pombal, J. P., Haddad, C. F. B. & Faivovich, J., 17 Meh 2020, Yn: Zoological Journal of the Linnean Society. 190, 4

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  33. Cyhoeddwyd

    High-voltage 10 ns delayed paired or bipolar pulses for in vitro bioelectric experiments

    Orlacchio, R., Carr, L., Palego, C., Arnaud-Cormos, D. & Leveque, P., Chwef 2021, Yn: Bioelectrochemistry. 137, 107648.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  34. E-gyhoeddi cyn argraffu

    High-yield carbon derived from commercial phenol–formaldehyde resin for broadband microwave absorption by balancing conductivity and polarization loss

    Shi, Y., Li, X., Liu, Q., Zhang, C., Guo, W., Tian, K., Elias, R. & Wang, H., 19 Ebr 2023, (E-gyhoeddi cyn argraffu) Yn: Journal of Materials Science. 58, t. 7048-7059

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  35. Cyhoeddwyd

    Higher and Higher.

    Brigden, D. N. & Gupta, R., 19 Meh 2003, Yn: Health Service Journal.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  36. Cyhoeddwyd

    Higher dose L-methylfolate may be an effective adjunctive therapy for adults with major depression who have inadequate response to SSRIs. Commentary.

    Roberts, S. H., Roberts S.H., N. V. & Tranter, R., 26 Ebr 2013, Yn: Evidence Based Mental Health. 16, 3, t. 75

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  37. Cyhoeddwyd

    Higher-dimensional hypergroups

    Wensley, C. D., Brown, R., Morris, I., Shrimpton, J. & Al-Ali, M. I., 1997, Yn: Far East Journal of Mathematical Sciences. 5, 2, t. 329-335

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  38. Cyhoeddwyd

    Higher-energy plasma ions found near the termination shock: Analyses of Voyager 2 data in the heliosheath and in the outer heliosphere

    Intriligator, D. S., Intriligator, J. M., Miller, W. D., Webber, W. & Decker, R. B., 27 Gorff 2010, Yn: Journal of Geophysical Research. 115, t. A07107

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  39. Cyhoeddwyd

    Highly Sensitive Bend Sensor Based on Bragg Grating in Eccentric Core Polymer Fiber

    Chen, X., Zhang, C., Webb, D. J., Kalli, K. & Peng, G. D., 1 Meh 2010, Yn: IEEE Photonics Technology Letters. 22, 11, t. 850-852

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  40. Cyhoeddwyd

    Highly branched isoprenoids as proxies for variable sea ice conditions in the Southern Ocean

    Masse, G., Belt, S. T., Crosta, X., Schmidt, S., Snape, I., Thomas, D. N. & Rowland, S. J., Hyd 2011, Yn: Antarctic Science. 23, 5, t. 487-498

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  41. Cyhoeddwyd

    Highly client-oriented breeding, using local preferences and selection, produces widely adapted rice varieties.

    Joshi, K. D., Musa, A. M., Johansen, C., Gyawali, S., Harris, D. & Witcombe, J. R., 4 Ion 2007, Yn: Field Crops Research. 100, 1, t. 107-116

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  42. Cyhoeddwyd

    Highly contiguous assemblies of 101 drosophilid genomes

    Kim, B. Y., Wang, J., Miller, D. E., Barmina, O., Delaney, E. K., Thompson, A., Comeault, A., Peede, D., D'Agostino, E. R., Pelaez, J., Aguilar, J. M., Haji, D., Matsunaga, T., Armstrong, E., Zych, M., Ogawa, Y., Stamenković-Radak, M., Jelić, M., Savić Veselinović, M., Tanasković, M., Erić, P., Gao, J-J., Katoh, T. K., Toda, M. J., Watabe, H., Watada, M., Davis, J. S., Moyle, L., Manoli, G., Bertolini, E., Koštál, V., Hawley, R. S., Takahashi, A., Jones, C. D., Price, D. K., Whiteman, N. K., Kopp, A., Matute, D. R. & Petrov, D. A., 19 Gorff 2021, Yn: Elife. 10, e66405.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  43. Cyhoeddwyd

    Highly stereoselective conjugate additions of heteroaryl alkyl sulfoxides

    Casey, M., Gairns, R. S., Geraghty, G. M., Kelly, C. J., Murphy, P. J. & Walker, A. J., 2000, Yn: Synlett. 2000, 12, t. 1721-1724 4 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  44. Cyhoeddwyd

    Highs and Lows of Sympathetic Neuro-cardiovascular Transduction: Influence of Altitude Acclimatization and Adaptation: Phenotypic differences in neuro-cardiovascular transduction

    Berthelsen, L. F., Fraser, G. M., Simpson, L., Vanden Berg, E. R., Busch, S. A., Steele, A. R., Meah, V. L., Lawley, J. S., Figueroa- Mujica, R. J., Vizcardo-Galindo, G., Villafuerte, F., Gasho, C., Willie, C., Tymko, M. M., Ainslie, P. N., Stembridge, M., Moore, J. & Steinback, C. D., Rhag 2020, Yn: American Journal of Physiology - Heart and Circulatory Physiology. 319, 6, t. H1240-H1252

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  45. Cyhoeddwyd

    Himantura randalli sp. nov., a new whipray (Myliobatoidea: Dasyatidae) from the Persian Gulf

    Last, P., Manjaji-Matsumoto, B. M. & Moore, A., 2012, Yn: Zootaxa. 3327, t. 20-32

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  46. Cyhoeddwyd

    Hip fracture in the elderly multidisciplinary rehabilitation (FEMuR) feasibility study: testing the use of routinely collected data for future health economic evaluations

    Williams, N., Mawdesley, K., Roberts, J., Din, N., Totton, N., Charles, J., Hoare, Z. & Edwards, R., 7 Mai 2018, Yn: Pilot and Feasibility Studies. 4, 76.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  47. Cyhoeddwyd

    Histologic comparison of vibrating guidewire with conventional guidewire technique in an experimental coronary in vivo model

    Katsouras, C. S., Michalis, L. K., Malamou-Mitsi, V. D., Niokou, D., Giogiakas, V., Nikas, D., Massouras, G., Dallas, P., Tsetis, D. K., Sideris, D. A. & Rees, M. R., 1 Medi 2003, Yn: Cardiovascular and Interventional Radiology. 26, 5, t. 454-458

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  48. Cyhoeddwyd

    Historic Spatial Patterns of Storm-Driven Compound Events in UK Estuaries

    Lyddon, C., Robins, P., Lewis, M., Barkwith, A., Vasilopoulos, G., Haigh, I. & Coulthard, T., Ion 2023, Yn: Estuaries and Coasts. 46, 1, t. 30-56 27 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  49. Cyhoeddwyd

    Historical biogeography of the western rattlesnake (Serpentes : Viperidae : Crotalus viridis), inferred from mitochondrial DNA sequence information

    Pook, C. E., Wuster, W. & Thorpe, R. S., 1 Mai 2000, Yn: Molecular Phylogenetics and Evolution. 15, 2, t. 269-282

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  50. Cyhoeddwyd

    Historical comparisons reveal multiple drivers of decadal change of an ecosystem engineer at the range edge

    Firth, L., Mieszkowska, N., Grant, L. M., Bush, L., Davies, A., Frost, M. T., Moschella, P. S., Burrows, M. T., Cunningham, P. N., Dye, S. R. & Hawkins, S., Awst 2015, Yn: Ecology and Evolution. 5, 15, t. 3210-3222

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  51. Cyhoeddwyd

    Historical records, archives and photogrammetry

    Wilson, A., Wilson, H., Labrosse, F., Tiddeman, B. & Roberts, J. C., 23 Chwef 2016, Yn: Historic Environment: Policy & Practice. 7, 1, t. 25-42

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid