Ysgol Gwyddorau Amgylcheddol a Naturiol
- Cyhoeddwyd
Increased frequency of drought reduces species richness of enchytraeid communities in both wet and dry heathland soils
Holmstrup, M., Sorensen, J. G., Maraldo, K., Schmidt, I. K., Mason, S., Tietema, A., Smith, A. R., Emmett, B., Schmelz, R. M., Bataillon, T., Beier, C. & Ehlers, B. K., 1 Hyd 2012, Yn: Soil Biology and Biochemistry. 53, t. 43-49Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Soil microarthropods are only weakly impacted after 13 years of repeated drought treatment in wet and dry heathland soils
Holmstrup, M., Sorensen, J. G., Schmidt, I. K., Nielsen, P. L., Mason, S., Tietema, A., Smith, A. R., Bataillon, T., Beier, C. & Ehlers, B. K., Tach 2013, Yn: Soil Biology and Biochemistry. 66, t. 110-118Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Deposition and characterisation by surface plasmon resonance of Langmuir-Blodgett monolayers of three macrocyclic conjugated tetrapyrrole compounds exposed to chlorine gas
Honeybourne, C. L., Portus, D., Ratcliffe, N. M., Richardson, T. & Ashwell, G. J., 1 Chwef 2002, Yn: Polish Journal of Chemistry. 76, 2-3, t. 367-376Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Reducing Uncertainty in Ecosystem Service Modelling through Weighted Ensembles
Hooftman, D., Bullock, J., Jones, L., Eigenbrod, F., Barredo, J., Forrest, M., Kinderman, G., Thomas, A. & Willcock, S., Chwef 2022, Yn: Ecosystem Services. 53, 22 t., 101398.Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
National scale mapping of supply and demand for recreational ecosystem services
Hooftman, D., Ridding, L., Redhead, J. & Willcock, S., Hyd 2023, Yn: Ecological Indicators. 154, 20 t., 110779.Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Rates, distributions and mechanisms of change in meander morphology over decadal timescales, River Dane, UK
Hooke, J. M. & Yorke, L., 1 Hyd 2010, Yn: Earth Surface Processes and Landforms. 35, 13, t. 1601-1614Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Channel bar dynamics on multi-decadal timescales in an active meandering river
Hooke, J. M. & Yorke, L., 1 Tach 2011, Yn: Earth Surface Processes and Landforms. 36, 14, t. 1910-1928Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Structural properties of the peroxisomal acetyl-CoA synthetase ACN1 from Arabidopsis.
Hooks, M., Nicholl, S., Grossman, G., McCullough, B. & Murphy, L. M., 1 Gorff 2008, t. S188.Allbwn ymchwil: Cyfraniad at gynhadledd › Papur
- Cyhoeddwyd
Modelling the peroxisomal carbon leak during lipid mobilization in Arabidopsis.
Hooks, M. A., Allen, E. & Watts, J. A., 1 Hyd 2010, Yn: Biochemical Society Transactions. 38, 5, t. 1230-1233Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Evidence that ACN1 (acetate non-utilizing 1) prevents carbon leakage from peroxisomes during lipid mobilization in Arabidopsis seedlings
Hooks, M. A., Allen, E., Moing, A., Wattis, J., Larson, T., Maucourt, M., Graham, I. A. & Rolin, D. H., 11 Mai 2011, Yn: Biochemical Journal. 437, t. 505-513Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
The Arabidopsis ALDP protein homologue COMATOSE is instrumental in peroxisomal acetate metabolism.
Hooks, M. A., Turner, J. E., Murphy, E. C., Johnston, K. A., Burr, S. & Jaroslawski, S., 15 Medi 2007, Yn: Biochemical Journal. 406, 3, t. 399-406Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Acetate non-utilizing mutants of Arabidopsis: evidence that organic acids influence carbohydrate perception in germinating seedlings.
Hooks, M. A., Turner, J. E., Murphy, E. C. & Graham, I. A., 1 Ebr 2004, Yn: Molecular Genetics and Genomics. 271, 3, t. 249-256Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Host-derived population genomics data provides insights into bacterial and diatom composition of the killer whale skin
Hooper, R., Brealey, J., van der Valk, T., Alberdi, A., Durban, J., Fearnbach, H., Baird, R., Hanson, M. B., Wade, P., Gilbert, M. T. P., Morin, P. A., Wolf, J. B. W., Foote, A. & Guschanski, K., Ion 2019, Yn: Molecular Ecology. 28, 2, t. 484-502 19 t.Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Free atmospheric CO2 enrichment did not affect symbiotic N2-fixation and soil carbon dynamics in a mixed deciduous stand in Wales.
Hoosbeck, M. R., Lukac, M., Velthorst, E. J. & Godbold, D. L., 4 Meh 2010, Yn: Biogeosciences Discussions. 7, 3, t. 4153-4180Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
More new carbon in the mineral soil of a poplar plantation under Free Air Carbon Enrichment (POPFACE): cause of increased priming effect?
Hoosbeek, M. R., Lukac, M., Van Dam, D., Godbold, D. L., Velthorst, E. J., Biondi, F. A., Peressotti, A., Cotrufo, M. F., De Angelis, P. & Scarascia-Mugnozza, G., 16 Maw 2004, Yn: Global Biogeochemical Cycles. 18, 1, t. GB1040Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Free atmospheric CO2 enrichment increased above ground biomass but did not affect symbiotic N-2-fixation and soil carbon dynamics in a mixed deciduous stand in Wales
Hoosbeek, M. R., Lukac, M., Velthorst, E., Smith, A. R. & Godbold, D. L., 14 Chwef 2011, Yn: Biogeosciences. 8, 2, t. 353-364Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Addition of base cations increases microbial carbon use efficiency and biomass in acidic soils
Horn, E. L., Cooledge, E., Jones, D. L., Hoyle, F. C., Brailsford, F. L. & Murphy, D. V., Hyd 2021, Yn: Soil Biology and Biochemistry. 161, 108392.Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Pentafluorophenylboronic acid.
Horton, P. N., Hursthouse, M. B., Beckett, M. A. & Rugen-Hankey, M. P., 1 Rhag 2003, Yn: Acta Crystallographica Section E: Structure Reports Online. 60, 12, t. o2204-o2206Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Phylogenomics and species delimitation for effective conservation of manta and devil rays
Hosegood, J., Humble, E., Ogden, R., De Bruyn, M., Creer, S., Stevens, G. M. W., Abudaya, M., Bassos-Hull, K., Bonfil, R., Fernando, D., Foote, A., Hipperson, H., Jabado, R. W., Kaden, J., Moazzam, M., Peel, L. R., Pollett, S., Ponzo, A., Poortvliet, M., Salah, J., Senn, H., Stewart, J. D., Wintner, S. & Carvalho, G., Rhag 2020, Yn: Molecular Ecology. 29, 24, t. 4783-4796Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
The role of seasonality in lettuce consumption: a case study of environmental and social aspects.
Hospido, A., Mila I Canals, L., McLaren, S., Truninger, M., Edwards-Jones, G. & Clift, R., 1 Gorff 2009, Yn: International Journal of Life Cycle Assessment. 14, 5, t. 381-391Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- 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 gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Greenhouse Gas Mitigation of Rural Household Biogas Systems in China: A Life Cycle Assessment
Hou, J., Zhang, W., Wang, P., Dou, Z., Gao, L. & Styles, D., 2017, Yn: Energies. 10, 14 t., 239.Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
A note on the effect of farmer mental health on adoption: The case of agri-environment schemes.
Hounsome, B., Edwards, R. T. & Edwards-Jones, G., 1 Rhag 2006, Yn: Agricultural Systems. 91, 3, t. 229-241Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Changes in antioxidant compounds in white cabbage during winter storage.
Hounsome, N., Hounsome, B., Tomos, A. D. & Edwards-Jones, G., 1 Mai 2009, Yn: Postharvest Biology and Technology. 52, 2, t. 173-179Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Psychological Morbidity of Farmers and Non-farming Population: Results from a UK Survey
Hounsome, B., Edwards, R. T., Hounsome, N. & Edwards-Jones, G., 1 Awst 2012, Yn: Community Mental Health Journal. 48, 4, t. 503-510Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
A Soluble Fucose-Specific Lectin from Aspergillus fumigatus Conidia - Structure, Specificity and Possible Role in Fungal Pathogenicity
Houser, J., Komarek, J., Kostlanova, N., Cioci, G., Varrot, A., Kerr, S. C., Lahmann, M., Balloy, V., Fahy, J. F., Chignard, M., Imberty, A. & Wimmerova, M., 10 Rhag 2013, Yn: PLoS ONE.Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Solvothermal Synthesis of Discrete Cages and Extended Networks Comprising {Cr(III)3O(O2CR)3(oxime)3}2- (R = H, CH3, C(CH3)3, C14H9) Building Blocks.
Houton, E., Comar, P., Pitak, M. B., Coles, S. J., Ryder, A. G., Piligkos, S., Brechin, E. K. & Jones, L., 28 Gorff 2016, Yn: RSC Advances. 77, t. 73668-73676Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Bulking up: Hexanuclear oximato Fe(III) complexes surrounded by sterically demanding co-ligands
Houton, E., Meally, S. T., Sanz, S., Brechin, E. K. & Jones, L. F., 1 Medi 2014, Yn: Inorganica Chimica Acta. 421, t. 416-422Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Ferromagnetic exchange in a twisted, oxime-bridged [Mn-2(III)] dimer
Houton, E., Taylor, S. M., Beedle, C. C., Cano, J., Piligkos, S., Hill, S., Ryder, A. G., Brechin, E. K. & Jones, L. F., 2012, Yn: Dalton Transactions. 41, 27, t. 8340-8347Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Synthesis of a novel C2-symmetric guanidine base
Howard-Jones, A., Murphy, P. J. & Thomas, D. A., 15 Ion 1999, Yn: Journal of Organic Chemistry. 64, 3, t. 1039-1041 3 t.Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Fabrication of biodegradable scaffolds via supercritical carbon dioxide foaming: Effect of polymer composition and processing conditions
Howdle, S. M., Shakesheff, K. M. & Tai, H., 19 Awst 2007, Yn: Abstracts of papers - American Chemical Society. 234Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Time to stop monkeying around? Climate change impacts on the biogeography of Callitrichidae species
Howe, B. & Winder, I. C., Ebr 2020.Allbwn ymchwil: Cyfraniad at gynhadledd › Crynodeb › adolygiad gan gymheiriaid
- Cyhoeddwyd
Members of the crustacean hyperglycemic hormone (CHH) peptide family are differentially distributed both between and within the neuroendocrine organs of Cancer crabs: implications for differential release and pleiotropic function.
Hsu, Y. W., Messinger, D. I., Chung, J. S., Webster, S. G., De La Iglesia, H. O. & Christie, A. E., 15 Awst 2006, Yn: Journal of Experimental Biology. 209, 16, t. 3241-3256Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Environmental assessment of small-scale vegetable farming systems in peri-urban areas of the Yangtze River delta region, China.
Huang, B., Shi, X., Yu, D., Oborn, I., Blomback, K., Pagella, T. F., Wang, H., Sun, W. & Sinclair, F. L., 1 Maw 2006, Yn: Agriculture, Ecosystems and Environment. 112, 4, t. 391-402Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Asynchronous carbon sink saturation in African and Amazonian tropical forests
Hubau, W., Lewis, S. L., Phillips, O. L., Affum-Baffoe, K., Beeckman, H., Cuní-Sanchez, A., Daniels, A. K., Ewango, C. E. N., Fauset, S., Mukinzi, J. M., Sheil, D., Sonké, B., Sullivan, M. J. P., Sunderland, T. C. H., Taedoumg, H., Thomas, S. C., White, L. J. T., Abernethy, K. A., Adu-Bredu, S., Amani, C. A., Baker, T. R., Banin, L. F., Baya, F., Begne, S. K., Bennett, A. C., Benedet, F., Bitariho, R., Bocko, Y. E., Boeckx, P., Boundja, P., Brienen, R. J. W., Brncic, T., Chezeaux, E., Chuyong, G. B., Clark, C. J., Collins, M., Comiskey, J. A., Coomes, D. A., Dargie, G. C., de Haulleville, T., Kamdem, M. N. D., Doucet, J-L., Esquivel-Muelbert, A., Feldpausch, T. R., Fofanah, A., Foli, E. G., Gilpin, M., Gloor, E., Gonmadje, C., Gourlet-Fleury, S., Hall, J. S., Hamilton, A. C., Harris, D. J., Hart, T. B., Hockemba, M. B. N., Hladik, A., Ifo, S. A., Jeffery, K. J., Jucker, T., Yakusu, E. K., Kearsley, E., Kenfack, D., Koch, A., Leal, M. E., Levesley, A., Lindsell, J. A., Lisingo, J., Lopez-Gonzalez, G., Lovett, J. C., Makana, J-R., Malhi, Y., Marshall, A. R., Martin, J., Martin, E. H., Mbayu, F. M., Medjibe, V. P., Mihindou, V., Mitchard, E. T. A., Moore, S., Munishi, P. K. T., Bengone, N. N., Ojo, L., Ondo, F. E., Peh, K. S-H., Pickavance, G. C., Poulsen, A. D., Poulsen, J. R., Qie, L., Reitsma, J., Rovero, F., Swaine, M. D., Talbot, J., Taplin, J., Taylor, D. M., Thomas, D. W., Toirambe, B., Mukendi, J. T., Tuagben, D., Umunay, P. M., van der Heijden, G. M. F., Verbeeck, H., Vleminckx, J., Willcock, S., Wöll, H., Woods, J. T. & Zemagho, L., 5 Maw 2020, Yn: Nature. 579, 7797, t. 80-87 8 t.Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Challenges and opportunities for early-career Teaching-Focussed academics in the biosciences
Hubbard, K., Gretton, S., Jones, K. & Tallents, L., Maw 2015, Yn: F1000Research. 4Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Detection and Identification of Species-Specific Bacteria Associated with Synanthropic Mites
Hubert, J., Kopecký, J., Perotti, M. A., Nesvorná, M., Braig, H. R., Ságová-Marečková, M., Macovei, M. & Zurek, L., 1 Mai 2012, Yn: Microbial Ecology. 63, 4, t. 919-928Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Origin and fate of Vanadium in the Hazeltine Creek Catchment following the 2014 Mount Polley mine tailings spill, British Columbia, Canada
Hudson-Edwards, K. A., Byrne, P., Bird, G., Brewer, P. A., Burke, I. T., Jamieson, H. E., Macklin, M. G. & Williams, R. D., 16 Ebr 2019, Yn: Environmental Science and Technology. 53, 8, t. 4088–4098Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Kin or self-recognition? Colonial fusibility of the bryozoan Celleporella hyalina.
Hughes, R. N., Manriquez, P. H., Morley, S., Craig, S. F. & Bishop, J. D., 1 Tach 2004, Yn: Evolution and Development. 6, 6, t. 431-437Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Two intertidal fish species use visual association learning to track the status of food patches in a radial maze
Hughes, R. N. & Blight, C. M., 1 Maw 2000, Yn: Animal Behaviour. 59, 3, t. 613-621Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Wavepacket dynamics on arbitrary Lagrangian-Eulerian grids: application to an Eckart barrier
Hughes, K. H. & Wyatt, R. E., 1 Ion 2003, Yn: Physical Chemistry Chemical Physics. 5, 18, t. 3905-3910Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Female investment is retarded pending reception of allosperm in a hermaphroditic colonial invertebrate.
Hughes, R. N., Manriquez, P. H. & Bishop, J. D., 1 Tach 2002, Yn: Proceedings of the National Academy of Sciences of the USA. 99, 23, t. 14884-14886Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Stress promotes maleness in hermaphroditic modular animals.
Hughes, R. N., Manriquez, P. H., Bishop, J. D. & Burrows, M. T., 1 Medi 2003, Yn: Proceedings of the National Academy of Sciences of the USA. 100, 18, t. 10326-10330Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Patterns of self compatibility, inbreeding depression, outcrossing, and sex allocation in a marine bryozoan suggest the predominating influence of sperm competition.
Hughes, R. N., Wright, P. J., Carvalho, G. R. & Hutchinson, W. F., 1 Tach 2009, Yn: Biological Journal of the Linnean Society. 98, 3, t. 519-531Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Plastic and Heritable Components of Phenotypic Variation in Nucella lapillus: An Assessment Using Reciprocal Transplant and Common Garden Experiments
Hughes, R. N., Pascoal, S., Carvalho, G. R., Creer, S., Rock, J., Kawaii, K., Mendo, S. & Hughes, R., 27 Ion 2012, Yn: PLoS ONE. 7, 1, t. e30289Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Quantum hydrodynamics for mixed states.
Hughes, K. H., Parry, S. M., Burghardt, I., Shalashilin, D. V. (gol.) & De Miranda, M. P. (gol.), 1 Ion 2009, Multidimensional Quantum Mechanics with Trajectories. 2009 gol. CCP, Daresbury, t. 74-76Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Pennod
- Cyhoeddwyd
A hybrid hydrodynamic lliouvillian approach to non-Markovian dynamics.
Hughes, K. H., Burghardt, I. & Chattaraj, P. (gol.), 1 Ion 2010, Quantum Trajectories. 2010 gol. Taylor and FrancisAllbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Pennod
- Cyhoeddwyd
Boltzmann wavepacket dynamics of tunnelling of molecules through symmetric and asymmetric energy barriers on non-periodic potential functions.
Hughes, K. H. & Macdonald, J. N., 1 Awst 2000, Yn: Physical Chemistry Chemical Physics. 2, 16, t. 3539-3547Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Closure of quantum hydrodynamic moment equations.
Hughes, K. H., Parry, S. M. & Burghardt, I., 7 Chwef 2009, Yn: Journal of Chemical Physics. 130, 5, t. 054115Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Effective-mode representation of non-Markovian dynamics: A hierarchical approximation of the spectral density. I. Application to single surface dynamics.
Hughes, K. H., Christ, C. D. & Burghardt, I., 14 Gorff 2009, Yn: Journal of Chemical Physics. 131, 2, t. 024109Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid