Coleg Gwyddoniaeth a Pheirianneg
1051 - 1100 o blith 10,796Maint y tudalen: 50
- Cyhoeddwyd
The preparation and physical characterisation of modified soybean polysaccharides.
Fang, J., Fowler, P. A., Fang, J. M., Fowler, P., Tomkinson, J. & Hill, C. A., 1 Hyd 2002, Yn: Journal of the Science of Food and Agriculture. 82, 13, t. 1523-1527Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
The preparation and characterisation of a series of chemically modified potato starches.
Fang, J. M., Fowler, P. A. & Tomkinson, J. H., 15 Chwef 2002, Yn: Carbohydrate Polymers. 47, 3, t. 245-252Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
The prediction of adaptive evolution: empirical application of the secondary theorem of selection and comparison to the breeder's equation
Morrissey, M. B., Parker, D. J., Korsten, P., Pemberton, J. M., Kruuk, L. E. B. & Wilson, A. J., 1 Awst 2012, Yn: Evolution. 66, 8, t. 2399-410 12 t.Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
The predicted shapes of voids and Xe bubbles in UO2
Galvin, C. O. T., Rushton, M., Cooper, M. W. D., Burr, P. A. & Grimes, R. W., 1 Ion 2021, Yn: Journal of Nuclear Materials. 543, 152622.Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
The precipitation of calcium carbonate as ikaite crystals in Antarctic sea ice; implications.
Dieckmann, G. S., Nehrke, G., Gottlicher, J., Steininger, R., Papadimitriou, S., Kennedy, H. A. & Thomas, D. N., 1 Ion 2009.Allbwn ymchwil: Cyfraniad at gynhadledd › Papur
- E-gyhoeddi cyn argraffu
The power of citizen science to advance fungal conservation
Haelewaters, D., Quandt, C. A., Bartrop, L., Cazabonne, J., Crockatt, M. E., Cunha, S. P., De Lange, R., Dominici, L., Douglas, B., Drechsler-Santos, E. R., Heilmann-Clausen, J., Irga, P. J., Jakob, S., Lofgren, L., Martin, T. E., Muchane, M. N., Stallman, J. K., Verbeken, A., Walker, A. K. & Gonçalves, S. C., 22 Maw 2024, (E-gyhoeddi cyn argraffu) Yn: Conservation Letters. 17, 3, t. e13013Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl adolygu › adolygiad gan gymheiriaid
- Cyhoeddwyd
The potential role of ectoparasites in the epidemiology of squirrelpox virus: a possible novel means of intervention to reduce the impact of the disease?
Cowan, D. P., Mill, A. C., Everest, D. J., McInnes, C. J., Rushton, S. P., Shirley, M. D. F., Start, C. & Shuttleworth, C., 2016, The grey squirrel: ecology and management in Europe . Shuttleworth, C. M., Lurz, P. W. W. & Gurnell, J. (gol.). European Squirrel Initiative, t. 255-289Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Pennod › adolygiad gan gymheiriaid
- Cyhoeddwyd
The potential of the Global Person Generated Index for evaluating the perceived impacts of conservation interventions on subjective well-being
Rasolofoson, R., Nielsen, M. R. & Jones, J. P. G., Mai 2018, Yn: World Development. 105, t. 107-118Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
The potential of native species aquaculture to achieve conservation objectives: freshwater crayfish in Madagascar
Jones, J. P. G., Hockley, N. J. & Andriahajaina, F. B., 1 Rhag 2007, Yn: International Journal of Biodiversity Science and Management. 3, 4, t. 217-222Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
The potential of ikaite to record the evolution of oceanic δ18O.
Rickaby, R. E., Shaw, S., Bennitt, G., Kennedy, H., Zabel, M. & Lennie, A., 1 Meh 2006, Yn: Geology. 34, 6, t. 497-500Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
The potential of combined Mg/Ca and δ18O measurements within the shell of the bivalve Pecten maximus to estimate seawater δ18O composition
Freitas, P. S., Clarke, L. J., Kennedy, H. & Richardson, C. A., 6 Ion 2012, Yn: Chemical Geology. 291, t. 286-293Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
The potential impact of climate change on the infectious diseases of commercially important shellfish populations in the Irish Sea—a review
Robins, P. E., Malham, S., Rowley, A. F., Cross, M. E., Culloty, S. C., Lynch, S. A., Mackenzie, C. L., Morgan, E., O'Riordan, R. M., Robbins, P. E., Smith, A. L., Thrupp, T. J., Vogan, C. L., Wootton, E. C. & Malham, S. K., 1 Mai 2014, Yn: ICES Journal of Marine Science. 71, 4, t. 741-759Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
The potential for lynx reintroduction to Scotland: Innovative modelling provides robust scientific evidence to inform decision making
Ovenden, T., Palmer, S., Travis, J. & Healey, J., Mai 2019, University of Stirling. 3 t. (University of Stirling Policy Brief)Allbwn ymchwil: Llyfr/Adroddiad › Adoddiad Arall › adolygiad gan gymheiriaid
- Cyhoeddwyd
The potential for land sparing to offset greenhouse gas emissions from agriculture
Lamb, A., Green, R., Kasoar, T., Phalan, B., zu Ermgassen, E. K. H. J., Balmford, A., Crane, E., Field, R., Bateman, I., Broadmeadow, M., Bruce, T., Goulding, K., Pickett, J., Burney, J., Carey, P., Griffiths, H., Chadwick, D., Hastings, A., Smith, P., Kindred, D. & Wall, E., Mai 2016, Yn: Nature Climate Change. 2016, 6, t. 488-492Allbwn ymchwil: Cyfraniad at gyfnodolyn › Llythyr › adolygiad gan gymheiriaid
- Cyhoeddwyd
The potential for crop production from salt affected lands; an overview
Wyn Jones, R. G., Gorham, J., Hollington, P. A., Akhtar, J. (gol.) & Qureshi, R. H. (gol.), 1 Rhag 2006, t. 9-16.Allbwn ymchwil: Cyfraniad at gynhadledd › Papur
- Cyhoeddwyd
The population structure and biology of the ocean quahog, Arctica islandica, in Belfast Lough, Northern Ireland
Ridgway, I. D., Richardson, C. A., Scourse, J. D., Butler, P. G. & Reynolds, D. J., 1 Mai 2012, Yn: Journal of the Marine Biological Association of the United Kingdom. 92, 3, t. 539-546Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
The population biology of the thornback ray, Raja clavata in Caernarfon Bay, north Wales
Whittamore, J. M. & McCarthy, I. D., 1 Hyd 2005, Yn: Journal of the Marine Biological Association of the United Kingdom. 85, 5, t. 1089-1094Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
The population biology of the thornback ray, Raja clavata L., in Caernarfon Bay, North Wales.
Whittamore, J. M. & McCarthy, I. D., 1 Ion 2004.Allbwn ymchwil: Cyfraniad at gynhadledd › Papur
- Cyhoeddwyd
The politics of the rural and relational values: Contested discourses of rural change and landscape futures in west wales
Holmes, G., Clemoes, J., Wynne-Jones, S. & Marriot, K., 3 Gorff 2022, Yn: Geoforum. 133, t. 153-164Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
The politics of "non-planning" interventions in African cities: unravelling the international and local dimensions in Harare and Maputo.
Kamete, A., Kamete, A. Y. & Lindell, I., 1 Rhag 2010, Yn: Journal of Southern African Studies. 36, 4, t. 889-912Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
The political economy of forest entitlements: can community based forest management reduce vulnerability at the forest margin?
Chomba, S., Treue, T. & Sinclair, F. L., 12 Rhag 2014, Yn: Forest Policy and Economics. 58, t. 37-46Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
The policy role of systematic reviews: Past, present and future
Haddaway, N. R. & Pullin, A. S., 29 Hyd 2014, Yn: Springer Science Reviews. 2, 1-2, t. 179-183Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
The platform for European root science, COST action E38: an introduction and overview.
Godbold, D. L. & Brunner, I., 1 Tach 2007, Yn: Plant Biosystems. 141, 3, t. 390-393Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
The phylogeny of cobras inferred from mitochondrial DNA sequences: Evolution of venom spitting and the phylogeography of the African spitting cobras (Serpentes : Elapidae : Naja nigricollia complex)
Wuster, W., Wüster, W., Crookes, S., Ineich, I., Mane, Y., Pook, C. E., Trape, J. F. & Broadley, D. G., 1 Tach 2007, Yn: Molecular Phylogenetics and Evolution. 45, 2, t. 437-453Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
The photonics academy for Wales.
Shore, K. A., Barwis, V., Davies, R., Doodson, S., Jones, D., Lord, J., Martin, A., Maxwell, I., Rimmer, D. & Smith, C., 1 Meh 2007.Allbwn ymchwil: Cyfraniad at gynhadledd › Papur
- Cyhoeddwyd
The phase lag of turbulent dissipation in tidal flow.
Simpson, J. H., Rippeth, T. P., Campbell, A. R. & Yanagi, T. (gol.), 1 Ion 2000, Interactions between Estuaries: Coastal Seas and Shelf Seas. 2000 gol. Terra Scientific Publishing, t. 57-67Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Pennod
- Cyhoeddwyd
The pervasive role of biological cohesion in bedform development
Malarkey, J., Baas, J. H., Hope, J. A., Aspenden, R. J., Parsons, D. R., Peakall, J., Peterson, D. M., Schindler, R. J., Ye, L., Lichtman, I. D., Bass, S. J., Davies, A. G., Manning, A. J. & Thorne, P. D., 6 Chwef 2015, Yn: Nature Communications. 6, 6257Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
The persistent spatial patchiness of limpet grazing.
Johnson, M. P., Hanley, M. E., Frost, N. J., Mosley, M. W. & Hawkins, S. J., 31 Hyd 2008, Yn: Journal of Experimental Marine Biology and Ecology. 365, 2, t. 136-141Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
The periodic table at a glance.
Beckett, M. A. & Platt, A. W., 1 Ion 2006, Wiley-Blackwell.Allbwn ymchwil: Llyfr/Adroddiad › Llyfr
- Cyhoeddwyd
The perfect invader: a parthenogenic crayfish poses a new threat to Madagascar's freshwater biodiversity.
Jones, J. P. G., Rasamy, J. R., Harvey, A., Toon, A., Oidtmann, B., Randrianarison, M. H., Raminosoa, N. & Ravoahangimalala, O. R., 1 Meh 2009, Yn: Biological Invasions. 11, 6, t. 1475-1482Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
The patterns of bacterial community and relationships between sulfate-reducing bacteria and hydrochemistry in sulfate-polluted groundwater of Baogang rare earth tailings
An, X., Baker, P., Li, H., Su, J., Yu, C. & Cai, C., Tach 2016, Yn: Environmental Science and Pollution Research. t. 21766-21779 13 t.Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
The path for innovative severe accident neutronics studies in ZPRs. part I.2-Interpretation of SNEAK-12A experiment for core disruption in LMFBRs impact of nuclear data uncertainties on reactivity coefficients
Margulis, M., Blaise, P., Mellier, F. & Gilad, E., 1 Ebr 2017, Yn: Progress in Nuclear Energy. 96, t. 97-117Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
The path for innovative severe accident neutronics studies in ZPRs. Part II.2-Interpretation of SNEAK-12B experiment for core disruption in LMFBRs impact of nuclear data uncertainties on reactivity coefficients
Margulis, M., Blaise, P., Mellier, F. & Gilad, E., 1 Mai 2018, Yn: Progress in Nuclear Energy. 105, t. 124-135Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
The path for innovative severe accident neutronics studies in ZPRs. Part I.1-Analysis of SNEAK-12A experiments for core disruption in LMFBRs
Margulis, M., Blaise, P., Gabrielli, F., Gruel, A., Mellier, F. & Gilad, E., 1 Ion 2017, Yn: Progress in Nuclear Energy. 94, t. 106-125Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
The path for innovative severe accident neutronics studies in ZPRs - Analysis of SNEAK-12B experiments for core disruption in LMFBRs
Margulis, M., Blaise, P., Gabrielli, F., Gruel, A., Mellier, F. & Gilad, E., 1 Chwef 2019, Yn: Annals of Nuclear Energy. 124, t. 119-131Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
The passive control of air pollution exposure in Dublin, Ireland: A combined measurement and modelling case study
Gallagher, J., Gill, L. W. & MacNabola, A., 1 Awst 2013, Yn: Science of the Total Environment. 458, t. 331-343Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
The paradox of extreme high-altitude migration in bar-headed geese Anser indicus
Hawkes, L. A., Balachandran, S., Batbayar, N., Butler, P. J., Chua, B., Douglas, D. C., Frappell, P. B., Hou, Y., Milsom, W. K., Newman, S. H., Prosser, D. J., Sathiyaselvam, P., Scott, G. R., Takekawa, J. Y., Natsagdorj, T., Wikelski, M., Witt, M. J., Yan, B. & Bishop, C. M., 18 Maw 2013, Yn: Proceedings of the Royal Society B: Biological Sciences. 280, t. 1750Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
The pace of shifting seasons in lakes
Woolway, R. I., 13 Ebr 2023, Yn: Nature Communications. 14, 2101.Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
The pH optimum of soil exoenzymes adapt to long term changes in soil pH
Puissant, J., Jones, B., Goodall, T., Mang, D., Blaud, A., Gweon, H. S., Malik, A., Jones, D. L., Clark, I. M., Hirsch, P. R. & Griffiths, R., Tach 2019, Yn: Soil Biology and Biochemistry. 138, 107601.Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
The oxidation of uranium diboride in flowing air atmospheres
Mistarihi, Q., Martini, F., Buckley, J., Middleburgh, S., Abram, T. & Turner, J., 1 Gorff 2023, Yn: Journal of Nuclear Materials. 154417.Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
The origin of Heinrich layers: evidence from H2 for European precursor events.
Scourse, J. D., Hall, I. R., McCave, I. N., Young, J. R. & Sugdon, C., 1 Ion 2001.Allbwn ymchwil: Cyfraniad at gynhadledd › Papur
- Cyhoeddwyd
The origin of Heinrich layers: evidence from H2 for European precursor events.
Scourse, J. D., Hall, I. R., McCave, I. N., Young, J. R. & Sugdon, C., 1 Ion 2001.Allbwn ymchwil: Cyfraniad at gynhadledd › Papur
- Cyhoeddwyd
The origin of Heinrich layers: evidence from H2 for European precursor events.
Scourse, J. D., Hall, I. R., McCave, I. N., Young, J. R. & Sugdon, C., 30 Hyd 2000, Yn: Earth and Planetary Science Letters. 182, 2, t. 187-195Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
The origin and hazard of inputs to crop protection in organic farming systems: Are they sustainable?
Edwards-Jones, G. & Howells, O., 1 Ion 2001, Yn: Agricultural Systems. 67, 1, t. 31-47Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
The origin and evolution of the Toxicofera reptile venom system.
Fry, B. G., Sunagar, K., Casewell, N. R., Kochva, E., Roelants, K., Scheib, H., Wüster, W., Vidal, N., Young, B., Burbink, F., Pyron, R. A., Vonk, F. J. & Jackson, T. N. W., Rhag 2015, Venomous Reptiles and Their Toxins: Evolution, Pathophysiology and Biodiscovery. Fry, B. G. (gol.). Oxford: Oxford: OUP, t. 1 31 t.Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Pennod › adolygiad gan gymheiriaid
- Cyhoeddwyd
The orientationally controlled assembly of genetically modified enzymes in an amperometric biosensor
Gwenin, C., Kalaji, M., Williams, P. A. & Jones, R. M., 15 Meh 2007, Yn: Biosensors and Bioelectronics. 22, 12, t. 2869-2875Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
The optical efficiency of flocs in shelf seas and estuaries.
Bowers, D. G., Braithwaite, K. M., Nimmo-Smith, W. A. & Graham, G. W., 10 Chwef 2011, Yn: Estuarine, Coastal and Shelf Science. 91, 3, t. 341-350Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
The ocean sampling day consortium
Golyshin, P., Kopf, A., Bicak, M., Kottmann, R., Schnetzer, J., Kostadinov, I., Lehmann, K., Fernandez-Guerra, A., Jeanthon, C., Rahav, E., Ullrich, M., Wichels, A., Gerdts, G., Polymenakou, P., Kotoulas, G., Siam, R., Abdallah, R. Z., Sonnenschein, E. C., Cariou, T., O'Gara, F., Jackson, S., Orlic, S., Steinke, M., Busch, J., Duarte, B., Cacador, I., Canning-Clode, J., Bobrova, O., Marteinsson, V., Reynisson, E., Loureiro, C. M., Luna, G. M., Quero, G. M., Loscher, C. R., Kremp, A., DeLorenzo, M. E., Ovreas, L., Tolman, J., LaRoche, J., Penna, A., Frischer, M., Davis, T., Katherine, B., Meyer, C. P., Ramos, S., Magalhaes, C., Jude-Lemeilleur, F., Aguirre-Macedo, M. L., Wang, S., Poulton, N., Jones, S., Collin, R., Fuhrman, J. A., Conan, P., Alonso, C., Stambler, N., Goodwin, K., Yakimov, M. M., Baltar, F., Bodrossy, L., Van De Kamp, J., Frampton, D. M., Ostrowski, M., Van Ruth, P., Malthouse, P., Claus, S., Deneudt, K., Mortelmans, J., Pitois, S., Wallom, D., Salter, I., Costa, R., Schroeder, D. C., Kandil, M. M., Amaral, V., Biancalana, F., Santana, R., Pedrotti, M. L., Yoshida, T., Ogata, H., Ingleton, T., Munnik, K., Rodriguez-Ezpeleta, N., Berteaux-Lecellier, V., Wecker, P., Cancio, I., Vaulot, D., Bienhold, C., Ghazal, H., Chaouni, B., Essayeh, S., Ettamimi, S., Zaid, E., Boukhatem, N., Bouali, A., Chahboune, R., Barrijal, S., Timinouni, M., El Otmani, F., Bennani, M., Mea, M., Todorova, N., Karamfilov, V., ten Hoopen, P., Cochrane, G., L'Haridon, S., Bizsel, K. C., Vezzi, A., Lauro, F. M., Martin, P., Jensen, R. M., Hinks, J., Gebbels, S., Rosselli, R., De Pascale, F., Schiavon, R., dos Santos, A., Villar, E., Pesant, S., Cataletto, B., Malfatti, F., Edirisinghe, R., Silveira, J. A., Barbier, M., Turk, V., Tinta, T., Fuller, W. J., Salihoglu, I., Serakinci, N., Ergoren, M. C., Bresnan, E., Iriberri, J., Nyhus, P. A., Bente, E., Karlsen, H. E., Golyshin, P. N., Gasol, J. M., Moncheva, S., Dzhembekova, N., Johnson, Z., Sinigalliano, C. D., Gidley, M. L., Zingone, A., Danovaro, R. & Tsiamis, G., 19 Meh 2015, Yn: Giga Science. 4, 27Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
The occurrence of the copepods Stephos longipes (Calanoida) and Drescheriella glacialis (Harpacticoida) in summer sea ice in the Weddell Sea.
Schnack-Schiel, S. B., Thomas, D. N., Haas, C., Dieckmann, G. S. & Alheit, R., 1 Meh 2001, Yn: Antarctic Science. 13, 2, t. 150-157Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
The occurrence of imposex in Hexaplex trunculus from the Croatian Adriatic.
Prime, M., Peharda, M., Jelic, K., Mladineo, I. & Richardson, C. A., 1 Gorff 2006, Yn: Marine Pollution Bulletin. 52, 7, t. 810-812Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid