Ysgol Gwyddorau Iechyd

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

    The DNA-Binding Domain of S-pombe Mrc1 (Claspin) Acts to Enhance Stalling at Replication Barriers

    Zech, J., Godfrey, E. L., Masai, H., Hartsuiker, E. & Dalgaard, J. Z., 22 Gorff 2015, Yn: PLoS ONE. 10, 7

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  3. Cyhoeddwyd

    The Development of Videoconference-Based Support for People Living With Rare Dementias and Their Carers: Protocol for a 3-Phase Support Group Evaluation

    Waddington, C., Harding, E., Brotherhood, E., Davies Abbott, I., Barker, S., Camic, P., Ezeofor, V., Gardner, H., Grillo, A., Hardy, C., Hoare, Z., McKee-Jackson, R., Moore, K., O'Hara, T., Roberts, J., Rossi-Harries, S., Suarez-Gonzalez, A., Sullivan, M. P., Edwards, R. T., Van Der Byl Williams, M., Walton, J., Willoughby, A., Windle, G., Winrow, E., Wood, O., Zimmermann, N., Crutch, S. & Stott, J., 20 Gorff 2022, Yn: JMIR Research Protocols. 11, 7, 13 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  4. Cyhoeddwyd

    The Development of Virtual Videoconference-Based Support for People Living with Rare Dementias and Their Carers: Protocol for Support Group Evaluation

    Waddington, C., Harding, E., Brotherhood, E., Davies Abbott, I., Barker, S., Camic, P. M., Ezeofor, V., Gardner, H., Grillo, A., Hardy, C., Hoare, Z., McKee-Jackson, R., Moore, K., O'Hara, T., Roberts, J., Rossi-Harries, S., Saurez-Gonzalez, A., Pat Sullivan, M., Edwards, R. T., Van Der Byl Williams, M., Walton, J., Willoughby, A., Windle, G., Winrow, E., Wood, O., Zimmermann, N., Crutch, S. J. & Stott, J., 20 Gorff 2022, Yn: JMIR Research Protocols. 11, 7

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  5. Cyhoeddwyd

    The Development of a Consistent Europe-Wide Approach to Investigating the Economic Impact of Myalgic Encephalomyelitis (ME/CFS): A Report from the European Network on ME/CFS (EUROMENE)

    Pheby, D. F. H., Araja, D., Berkis, U., Brenna, E., Cullinan, J., de Korwin, J-D., Gitto, L., Hughes, D., Hunter, R. M., Trépel, D. & Wang-Steverding, X., 7 Ebr 2020, Yn: Healthcare. 8, 2, 88.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  6. Cyhoeddwyd

    The Diagnostic Pathway Experiences of People Living with Rare Dementia and Their Family Caregivers: A Cross-Sectional Mixed Methods Study Using Qualitative and Economic Analyses

    Davies Abbott, I., Anthony, B., Jackson, K., Windle, G. & Edwards, R. T., 16 Chwef 2024, Yn: International Journal of Environmental Research and Public Health. 21, 2, 231.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  7. Cyhoeddwyd

    The Digital Divide, social inclusion and health among persons with mental illness in Poland

    Ng, Y. L., Chan, K., Balwicki, L., Huxley, P. & Chiu, M. Y., 2019, Yn: International Journal of Communication. 13, t. 1652-1672

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  8. Cyhoeddwyd

    The Education versus Training and the Skills versus Competency Debate.

    Gibbs, T., Brigden, D. N. & Hellenberg, D., 1 Hyd 2004, Yn: South African Journal of Family Practice.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  9. Cyhoeddwyd

    The Effect of Trans-urethral Resection of the Bladder Tumour (TURBT) on Routine Haematological and Biochemical Blood Tests: A Clinical-pilot Observational Study

    Hughes, S. F., Lamb, R. M., Moyes, A., Ella-Tongwiis, P., Gill, A., Duckett, A. & Shergill, I., 1 Rhag 2020, Yn: International Journal of Biomedical Science. 16, 4, t. 68-74

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  10. Cyhoeddwyd

    The Effects of Aerobic and Resistance Exercise on Markers of Large Joint Health in Stable Rheumatoid Arthritis Patients: A Pilot Study

    Law, R-J., Saynor, Z. L., Gabbitas, J., Jones, J., Kraus, A., Breslin, A., Maddison, P. J. & Thom, J. M., Rhag 2015, Yn: Musculoskeletal Care. 13, 4, t. 222-235 14 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  11. Cyhoeddwyd

    The Goldberg-Huxley model of the pathway to psychiatric care: 21st-century systematic review

    Huxley, P., Krayer, A., Poole, R., Gromadzka, A., Lai Jie, D. & Nafees, S., Gorff 2023, Yn: BJPsych open. 9, 4, 8 t., e114.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  12. Cyhoeddwyd

    The IN-FAKT study protocol: INvestigating the experiences and management of individuals with FAiling Kidney Transplants

    Bailey, P., Selman, L., Exley, C., Griffin, S., Hancock, A., Maxted, P. & Noyes, J., 2023, Yn: International Journal of Qualitative Methods. 22, 8 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  13. Cyhoeddwyd

    The Influence of Connective Tissue Disease in the Management of Lower Limb Ischemia

    Harries, R., Ahmed, M., Majeed, M. U. & Williams, D., 1 Gorff 2014, Yn: Annals of Vascular Surgery. 28, 5, t. 1139-1142

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  14. Cyhoeddwyd

    The Meiotic Recombination Hotspots of Schizosaccharomyces pombe

    Pryce, D. & Mcfarlane, R. J., 1 Ion 2009, Yn: Meiosis. 5, t. 1-13

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  15. Cyhoeddwyd

    The Problem Management Plus psychosocial intervention for distressed and functionally impaired asylum seekers and refugees: the PROSPER feasibility RCT

    Dowrick, C., Rosala-Hallas, A., Rawlinson, R., Khan, N., Winrow, E., Chiumento, A., Burnside, G., Aslam, R., Billows, L., Eriksson-Lee, M., Lawrence, D., McCluskey, R., Mackinnon, A., Moitt, T., Orton, L., Roberts, E., Rahman, A., Smith, G., Edwards, R. T., Uwamaliya, P. & White, R., Hyd 2022, Yn: Public Health Research. 10, 10, 104 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  16. Cyhoeddwyd

    The QALY at 50: One story many voices

    Spencer, A., Rivero-Arias, O., Wong, R., Tsuchiya, A., Bleichrodt, H., Edwards, R. T., Norman, R., Lloyd, A. & Clarke, P., Maw 2022, Yn: Social Science and Medicine. 296, 114653.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  17. Cyhoeddwyd

    The Radiography students’ perspective of the impact of COVID-19 on education and training internationally: a across sectional survey of the UK Devolved Nations (UKDN) and the United Arab Emirates (UAE)

    Elshami, W., Abuzaid, M. M., McConnell, J., Stewart, S., Floyd, M., Hughes, D., McClintock, C., Eckloff, K., Leishman, L. & McFadden, S., Hyd 2022, Yn: Radiography. 28 , Suppl 1, t. S50-S58

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  18. Cyhoeddwyd

    The Reproductive System at a Glance, 3rd edn

    Delieu, J. M., 1 Rhag 2011, Yn: Journal of Anatomy. 219, 6, t. 778

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  19. Cyhoeddwyd

    The Role of Community Health Workers in Oral Health Promotion and the Impact of their services in Sub-Saharan Africa: A Systematic Review

    Khan, M. A., Okeah, B., Mbivnjo, E. L., Kisangala, E. & Pritchard, A., 2022, Yn: South African Dental Journal. 77, 05, t. 285–293

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  20. Cyhoeddwyd

    The SANAD II study of the effectiveness and cost-effectiveness of levetiracetam, zonisamide or lamotrigine for newly diagnosed focal epilepsy: an open-label, non-inferiority, multicentre, phase 4, randomised controlled trial

    Marson, A., Burnside, G., Appleton, R., Smith, D., Leach, J. P., Sills, G., Tudor-Smith, C., Plumpton, C., Hughes, D., Williamson, P., Baker, G. A., Balabanova, S., Taylor, C., Brown, R., Hindley, D., Howell, S., Maguire, M., Mohanraj, R. & Smith, P. E., 10 Ebr 2021, Yn: The Lancet. 397, 10282, t. 1363-1374

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  21. Cyhoeddwyd

    The SANAD II study of the effectiveness and cost-effectiveness of valproate versus levetiracetam for newly diagnosed generalised and unclassifiable epilepsy: an open-label, non-inferiority, multicentre, phase 4, randomised controlled trial

    Marson, A., Burnside, G., Appleton, R., Leach, J. P., Sills, G., Tudor-Smith, C., Plumpton, C., Hughes, D., Williamson, P., Baker, G. A., Balabanova, S., Taylor, C., Brown, R., Hindley, D., Howell, S., Maguire, M., Mohanraj, R. & Smith, P. E., 10 Ebr 2021, Yn: The Lancet. 397, 10282, t. 1375-1386

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  22. Cyhoeddwyd

    The UK stand together trial: protocol for a multicentre cluster randomised controlled trial to evaluate the effectiveness and cost effectiveness of KiVa to reduce bullying in primary schools

    Stand Together Team, Clarkson, S., Bowes, L., Coulman, E., Broome, M. R., Cannings-John, R., Charles, J. M., Edwards, R. T., Ford, T., Hastings, R. P., Hayes, R., Patterson, P., Segrott, J., Townson, J., Watkins, R., Badger, J. & Hutchings, J., 29 Maw 2022, Yn: BMC Public Health. 22, 1, t. 608

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  23. Cyhoeddwyd

    The accuracy of assessment of walking distance in the elective spinal outpatients setting.

    Okoro, T., Qureshi, A., Sell, B. & Sell, P., 1 Chwef 2010, Yn: European Spine Journal. 19, 2, t. 279-282

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  24. Cyhoeddwyd

    The activity of the gluconate-H+ symporter of Schizosaccharomyces pombe cells is down-regulated by D-glucose and exogenous cAMP

    Caspari, T. & Urlinger, S., 21 Hyd 1996, Yn: Febs Letters. 395, 2-3, t. 272-6 5 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  25. Cyhoeddwyd

    The benefits of need satisfaction depend on their relative importance for people with a unidimensional identity: an idiographic analysis

    Glendinning, F., Woodman, T., Hardy, L. & Ong, C. W., Rhag 2021, Yn: Motivation and Emotion. 45, 6, t. 728-746

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  26. Cyhoeddwyd

    The bornavirus-derived human protein EBLN1 promotes efficient cell cycle transit, microtubule organisation and genome stability

    Myers, K. N., Barone, G., Ganesh, A., Staples, C. J., Howard, A. E., Beveridge, R. D., Maslen, S., Skehel, J. M. & Collis, S. J., 14 Hyd 2016, Yn: Scientific Reports. 6, t. 35548

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  27. Cyhoeddwyd

    The clinical effectiveness and cost effectiveness of clozapine for inpatients with severe borderline personality disorder (CALMED study): A randomised placebo-controlled trial

    Crawford, M. J., Leeson, V., Evans, R., Barrett, B., McQuaid, A., Cheshire, J., Sanatina, R., Lamph, G., Sen, P., Anagnostakis, K., Millard, L., Qurashi, I., Larkin, F., Husain, N., Moran, P., Barnes, T. R. E., Paton, C., Hoare, Z., Picchioni, M. & Gibbon, S., 2022, Yn: Theraputic Advances in Psychopharmacology. 12, 14 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  28. Cyhoeddwyd

    The clinical evaluation of lower limb perfusion in diabetic foot disease.

    Williams, D. T., Price, P. & Harding, K. G., 1 Ion 2003, Yn: British Journal of Diabetes and Vascular Disease. 3, 6, t. 394-398

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  29. Cyhoeddwyd

    The control of bimanual reach-to-grasp movements in hemiparkinsonian patients.

    Jackson, G. M., Jackson, S. R. & Hindle, J. V., 1 Meh 2000, Yn: Experimental Brain Research. 132, 3, t. 390-398

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  30. Cyhoeddwyd

    The development and theoretical application of an implementation framework for dialectical behaviour therapy: a critical literature review

    Toms, G., Williams, L., Rycroft-Malone, J., Swales, M. & Feigenbaum, J., 12 Chwef 2019, Yn: Borderline Personality Disorder and Emotion Dysregulation. 6, 2, 16 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  31. Cyhoeddwyd

    The development of the Primary Care Clusters Multi-dimensional Assessment (PCCMA): a mixed-methods study

    Stanciu, M., Law, R-J., Myers, P., Parsonage, R., Hiscock, J., Williams, N. & Wilkinson, C., Chwef 2020, Yn: Health Policy. 124, 2, t. 152-163

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  32. Cyhoeddwyd

    The drinking water contaminant dibromoacetonitrile delays G1-S transition and suppresses Chk1 activation at broken replication forks

    Caspari, T., Dyer, J., Fenner, N., Dunn, C. & Freeman, C., 2017, Yn: Scientific Reports. 7, 12730.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  33. Cyhoeddwyd

    The economic burden of advanced Parkinson’s disease: an analysis of a UK patient dataset

    Findley, L. J., Wood, E., Lowin, J., Roeder, C., Bergman, A. & Schifflers, M., 17 Ion 2011, Yn: Journal of Medical Economics. 14, 1, t. 130-9 10 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  34. Cyhoeddwyd

    The effect of Butterworth and Metz reconstruction filters on volume and ejection fraction calculations.

    Vakhtangandze, T., Hall, D. O., Zananiri, F. & Rees, M. R., 1 Awst 2005, Yn: British Journal of Radiology. 78, 932, t. 733-736

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  35. Cyhoeddwyd

    The effect of observing trained conspecifics on the performance and motivation of goldfish, Carassius auratus, in a spatial task

    Blane, J. C. & Holland, R. A., Ebr 2024, Yn: Behavioural Processes. 217, 105021.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  36. Cyhoeddwyd

    The effect of serotonergic and noradrenergic antidepressants on face emotion processing in depressed patients.

    Tranter, R., Bell, D., Gutting, P., Harmer, C., Healy, D. & Anderson, I. M., 1 Tach 2009, Yn: Journal of Affective Disorders. 118, 1-3, t. 87-93

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  37. Cyhoeddwyd

    The effect of the COVID-19 pandemic on mental health in individuals with pre-existing mental illness

    Lewis, K. J. S., Lewis, C., Roberts, A., Richards, N. A., Evison, C., Pearce, H. A., LLoyd, K., Meudell, A., Edwards, B. M., Robinson, C., Poole, R., John, A., Bisson, J. I. & Jones, I., Maw 2022, Yn: BJPsych open. 8, 2, 9 t., e59.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  38. Cyhoeddwyd

    The effects of sex, parity and maternal age on birth weights in a specialist hospital setting in Nigeria.

    Okoro, T., Njokanma, F. & Goswami, K., 1 Medi 2004, Yn: Journal of Obstetrics and Gynaecology. 24, 6, t. 657-661

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  39. Cyhoeddwyd

    The ethics of ‘Trials within Cohorts’ (TwiCs): 2nd international symposium

    Peckham, E. J., 20 Gorff 2017, Yn: Trials. 18, Suppl 2

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  40. Cyhoeddwyd

    The evidence base for routine enquiry into adverse childhood experiences: A scoping review

    Ford, K., Hughes, K., Hardcastle, K., Di Lemma, L., Davies, A., Edwards, S. & Bellis, M., Mai 2019, Yn: Child Abuse and Neglect. 91, May, t. 131-146 15 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  41. Cyhoeddwyd

    The experience of potentially vulnerable people during cold weather: implications for policy and practice

    Jones, L. & Mays, N., Awst 2016, Yn: BMC Public Health. 137, t. 20-25

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  42. Cyhoeddwyd

    The experiences and perceptions of young people and older people living with dementia of participating in intergenerational programmes: A qualitative evidence synthesis

    Houghton, C., Hennessy, M., Smyth, S., Hennelly, N., Smalle, M., Jordan, F., Jones, C. H., Quinn, M., Casey, D. & Teahan, Á., Hyd 2022, Yn: Dementia. 21, 7, t. 2144-2171 28 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  43. Cyhoeddwyd

    The experiences of therapists providing psychological treatment for adults with depression and intellectual disabilities as part of a randomised controlled trial

    Smith, I., Huws, J., Appleton, K., Cooper, S-A., Dagnan, D., Hastings, R., Hatton, C., Jones, R. S. P., Melville, C., Scott, K., Williams, C. & Jahoda, A., Tach 2021, Yn: Journal of Applied Research in Intellectual Disabilities. 34, 6, t. 1442-1451 10 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  44. Cyhoeddwyd

    The feasibility of a Comprehensive Resilience-building psychosocial Intervention (CREST) for people with dementia in the community: protocol for a non-randomised feasibility study

    Casey, D., Gallager, N., Devane, D., Woods, B., Murphy, K., Smyth, S., Newell, J., Murphy, A. W., Clarke, C., Foley, T., Timmons, F., Droes, R-M., O'Halloran, M., Windle, G., Irving Lupton, K., Domegan, CH., O'Shea, E., Dolan, P. & Doyle, P., 16 Tach 2020, Yn: BMC Pilot and Feasibility Studies. 6, 177, t. 1-16 16 t., 6.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  45. Cyhoeddwyd

    The generation of consensus guidelines for carrying out process evaluations in rehabilitation research

    Masterson Algar, P., Rycroft-Malone, J. & Burton, C., 29 Rhag 2018, Yn: BMC Medical Research Methodology. 18, 180.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  46. Cyhoeddwyd

    The genetics of the repaor of 5-azacytidine-mediated DNA damage in the fission yeast Schizosaccharomyces pombe.

    Hegde, V., Mcfarlane, R., Taylor, E. M. & Price, C., 1 Meh 1996, Yn: Molecular Genetics and Genomics. 251, 4, t. 483-492

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  47. Cyhoeddwyd

    The immortal strand hypothesis: still non-randomly segregating opinion.

    Wakeman, J., Hmadcha, A., Soria, B. & Mcfarlane, R., 23 Maw 2012, Yn: Biomolecular Concepts. 3, 3, t. 203-211

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  48. Cyhoeddwyd

    The impact of COVID-19 on the clinical experience and training of undergraduate Student radiographers internationally: The clinical tutors’ perspective

    Elshami, W., Abuzaid, M. M., McConnell, J., Floyd, M., Hughes, D., Stewart, S. & McFadden, S., Hyd 2022, Yn: Radiography. 28, Supplement 1, t. S59-S67 9 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  49. Cyhoeddwyd

    The impact of behavioural risk factors on communicable diseases: a systematic review of reviews

    Wood, S., Harrison, S., Judd, N., Bellis, M., Hughes, K. & Jones, A., 17 Tach 2021, Yn: BMC Public Health. 21, 1, 2110.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  50. Cyhoeddwyd

    The impact of being homeless on the clinical outcomes of COVID-19, and the impact of the pandemic on health inequalities in this population: systematic review

    Ogbonna, O., Bull, F., Spinks, B., Williams, D., Lewis, R. & Edwards, A., 15 Medi 2023, Yn: Journal of Public Health. 68, 1605893.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  51. Cyhoeddwyd

    The impact of changing provider remuneration on clinical activity and quality of care: evaluation of a pilot NHS contract in Northern Ireland

    Hill, H., Howarth, E., Walsh, T., Tickle, M., Birch, S. & Brocklehurst, P., Hyd 2020, Yn: Community Dentistry and Oral Epidemiology. 48, 5, t. 395-401 7 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid