Professor Bob Woods

Emeritus Professor

  1. Cyhoeddwyd

    Can we change brain functioning with cognition-focused interventions in Alzheimer's disease? The role of functional neuroimaging.

    Linden, D., Van Paasschen, J., Clare, L., Woods, R. T. & Linden, D. E., 1 Ion 2009, Yn: Restorative Neurology and Neuroscience. 27, 5, t. 473-491

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  2. Cyhoeddwyd

    A comparison of the new executive functioning domains of the CAMCOG-R with existing tests of executive function in elderly stroke survivors.

    Leeds, L., Meara, R. J., Woods, R. T. & Hobson, J. P., 1 Mai 2001, Yn: Age and Ageing. 30, 3, t. 251-254

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  3. Cyhoeddwyd

    Psychological problems in older people

    Lamers, C. & Woods, B., Ebr 2016, The Handbook of Adult Clinical Psychology: An Evidence Based Practice Approach. Carr, A. & McNulty, M. (gol.). 2nd gol. Routledge, t. 919-950

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion CynhadleddPennod

  4. Cyhoeddwyd

    Care coordination: translating policy into practice for older people

    Krayer, A. M., Seddon, D., Krayer, A., Robinson, C. A., Woods, R. T. & Tommis, Y., 30 Mai 2013, Yn: Quality in Ageing and Older Adults. 2

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  5. Cyhoeddwyd

    Unified Assessment in Wales. Older people with complex needs and their families.

    Krayer, A. M., Seddon, D., Krayer, A., Robinson, C. A., Woods, R. T. & Tommis, Y., 1 Ion 2010, 2010 gol. Unknown.

    Allbwn ymchwil: Llyfr/AdroddiadAdroddiad Comisiwn

  6. Cyhoeddwyd

    Cognitive stimulation therapy for people with dementia: cost-effectiveness analysis.

    Knapp, M., Thorgrimsen, L., Patel, A., Spector, A., Hallam, A., Woods, R. T. & Orrell, M., 1 Meh 2006, Yn: British Journal of Psychiatry. 188, t. 574-580

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  7. Cyhoeddwyd

    Do caregiver profiles predict the use of dementia care services? Findings from the Actifcare study

    Kerpershoek, L., Woods, R., Wolfs, C., Verhey, F., Jelley, H., Bieber, A., Stephan, A., Michelet, M., Selbaek, G., Handels, R., Wimo, A., Hopper, L., Irving, K., Marques, M. J., Gonçalves-Pereira, M., Portolani, E., Zanetti, O., de Vugt, M. & Consortium Actifcare, 1 Chwef 2020, Yn: Aging and Mental Health. 24, 2, t. 272-279

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  8. Cyhoeddwyd

    Optimizing access to and use of formal dementia care: Qualitative findings from the European Actifcare study

    Kerpershoek, L., Wolfs, C., Verhey, F., Jelley, H., Woods, R., Bieber, A., Bartoszek, G., Stephan, A., Selbaek, G., Eriksen, S., Sjölund, B-M., Hopper, L., Irving, K., Marques, M. J., Gonçalves-Pereira, M., Portolani, D., Zanetti, O. & de Vught, M., Medi 2019, Yn: Health and Social Care in the Community. 27, 5, t. e814–e823 10 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  9. Cyhoeddwyd

    Access to timely formal dementia care in Europe: protocol of the Actifcare (ACcess to Timely Formal Care) study

    Kerpershoek, L., de Vugt, M., Wolfs, C., Jelley, H., Orrell, M., Woods, R., Stephan, A., Bieber, A., Meyer, G., Engedal, K., Selbaek, G., Handels, R., Wimo, A., Hopper, L., Irving, K., Marques, M., Gonçalves-Pereira, M., Portolani, E., Zanetti, O. & Verhey, F., 23 Awst 2016, Yn: BMC Health Services Research. 16, 423, t. 1-7 7 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  10. Cyhoeddwyd

    Needs and quality of life of people with middle-stage dementia and their family carers from the European Actifcare study. When informal care alone may not suffice

    Kerpershoek, L., de Vugt, M., Wolfs, C., Woods, R., Jelley, H., Orrell, M., Bieber, A., Meyer, G., Selbaek, G., Handels, R., Wimo, A., Hopper, L., Irving, K., Marques, M. J., Gonçalves-Pereira, M., Portolani, E., Zanetti, O. & Verhey, F., Gorff 2018, Yn: Aging and Mental Health. 22, 7, t. 897-902 6 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  11. Cyhoeddwyd

    INTERDEM masterclass: Involving people with dementia as advisors to your research

    Jones, C., Algar, K., Woods, R., Roberts, C. & Goodrick, J., 1 Tach 2016.

    Allbwn ymchwil: Cyfraniad at gynhadleddArall

  12. Cyhoeddwyd

    Factors of resilience in informal caregivers of people with dementia from integrative international data-analysis

    Joling, K. J., Windle, G., Droes, R-M., Meiland, F., van Hout, H. P. J., MacNeil Vroomen, J., van de Ven, P. M., Moniz-Cook, E. & Woods, R., Hyd 2016, Yn: Dementia and Geriatric Cognitive Disorders. 42, 3-4, t. 198-214 17 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  13. Cyhoeddwyd

    What are the essential features of resilience for informal caregivers of people living with dementia? A Delphi consensus examination

    Joling, K. J., Windle, G., Droes, R. M., Huisman, M., Hertogh, C. & Woods, R. T., 21 Rhag 2015, Yn: Aging and Mental Health.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  14. Cyhoeddwyd

    Carers’ experiences of timely access to and use of dementia care services in eight European countries

    Jelley, H., Kerpershoek, L., Verhey, F., Wolfs, C., de Vught, M., Bieber, A., Stephan, A., Meyer, G., Michelet, M., Selbaek, G., Sjölund, B-M., Skoldunger, A., Hopper, L., Irving, K., Marques, M. J., Conceição Balsinha, M., Gonçalves-Pereira, M., Portolani, D. M., Zanetti, O. & Woods, R., Chwef 2021, Yn: Ageing and Society. 41, 2, t. 403-420 18 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  15. Cyhoeddwyd

    ‘It's in the eyes’: how family members and care staff understand awareness in people with severe dementia

    Jelley, H. Y., Quinn, C., Clare, L., Jelley, H., Bruce, E. & Woods, R. T., 28 Awst 2013, Yn: Aging and Mental Health. 18, 2, t. 260-268

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  16. Cyhoeddwyd

    Caregiver profiles in dementia related to quality of life, depression and perseverance time in the European Actifcare study: The importance of social health

    Janssen, E., de Vugt, M., Kohler, S., Wolfs, C., Kerpershoek, L., Handels, R., Orrell, M., Woods, R., Jelley, H., Stephan, A., Bieber, A., Meyer, G., Engedal, K., Selbaek, G., Wimo, A., Irving, K., Hopper, L., Marques, M., Gonçalves-Pereira, M., Portolani, E., Zanetti, O. & Verhey, F., Ion 2017, Yn: Aging and Mental Health. 21, 1, t. 49-57 9 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  17. Cyhoeddwyd

    Impact of Untimely Access to Formal Care on Costs and Quality of Life in Community Dwelling People with Dementia

    Janssen, N., Handels, R. L., Skoldunger, A., Woods, B., Jelley, H., Edwards, R. T., Orrell, M., Selbaek, G., Rosvik, J., Goncalves-Pereira, M., Marques, M. J., Zanetti, O., Portolani, E., Irving, K., Hopper, L., Meyer, G., Bieber, A., Stephan, A., Kerpershoek, L., Wolfs, C. A. G., de Vugt, M. E., Verhey, F. R. J., Wimo, A. & Consortium Actifcare, 23 Tach 2018, Yn: Journal of Alzheimer's Disease. 66, 3, t. 1165-1174

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  18. Cyhoeddwyd

    Profiles of Met and Unmet Needs in People with Dementia According to Caregivers’ Perspective: Results from a European Multicenter Study

    Janssen, N., Handels, R. L., Kohler, S., Gonçalves-Pereira, M., Marques, M. J., Irving, K., Hopper, L., Bieber, A., Orrell, M., Selbæk, G., Michelet, M., Wimo, A., Zanetti, O., Portolani, D. M., Evers, S. M. A. A., Verhey, F. & Actifcare Consortium, 1 Tach 2020, Yn: Journal of the American Medical Directors Association. 21, 11, t. 1609-1616

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  19. Cyhoeddwyd

    'This is killing me inside': the impact of having a parent with young-onset dementia

    Huws, J., Aslett, H., Woods, R. & Kelly-Rhind, J., 1 Ebr 2019, Yn: Dementia: International Journal of Social Research and Practice. 18, 3, t. 1089-1107

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  20. Cyhoeddwyd

    A Collaborative approach: Care staff and families working together to safeguard the quality of life of residents living with advanced dementia

    Hughes, S., Woods, R., Algar-Skaife, K., Jelley, H. & Jones, C., 13 Mai 2019, Yn: Journal of Central Nervous System Disease. 11, t. 1-9 9 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  21. Cyhoeddwyd

    Understanding quality of life and well-being for people living with advanced dementia.

    Hughes, S., Woods, R., Algar-Skaife, K. & Jones, C., 22 Maw 2019, Yn: Nursing Older People. 31, 2, t. 18-24 6 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  22. Cyhoeddwyd

    Public health interventions to promote well-being in people aged 65 and over: systematic review of effectiveness and cost-effectiveness.

    Hughes, D., Linck, P. G., Windle, G., Hughes, D. A., Linck, P., Russell, I. T., Morgan, R., Woods, R. T., Burholt, V., Edwards, R. T., Reeves, C. & Yeo, S. T., 1 Ion 2008, 2008 gol. Unknown.

    Allbwn ymchwil: Llyfr/AdroddiadAdroddiad Comisiwn

  23. Cyhoeddwyd

    Public health interventions to promote well-being in people aged 65 and over: systematic review of effectiveness and cost-effectiveness: Evidence Tables.

    Hughes, D., Linck, P. G., Windle, G., Linck, P., Morgan, R., Hughes, D. A., Burholt, V., Reeves, C., Yeo, S. T., Woods, R. T., Edwards, R. T. & Russell, I. T., 1 Ion 2008, 2008 gol. Unknown.

    Allbwn ymchwil: Llyfr/AdroddiadAdroddiad Comisiwn

  24. Cyhoeddwyd

    Is exercise effective in promoting mental well-being in older age? A systematic review.

    Hughes, D., Linck, P. G., Windle, G., Hughes, D. A., Linck, P., Russell, I. T. & Woods, R. T., 1 Awst 2010, Yn: Aging and Mental Health. 14, 6, t. 652-669

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  25. Cyhoeddwyd

    Dementia and Imagination: Qualitative research findings from an art and dementia study

    Howson, T., Jones, C., Windle, G. & Woods, R., 2 Tach 2016.

    Allbwn ymchwil: Cyfraniad at gynhadleddCrynodebadolygiad gan gymheiriaid

  26. Cyhoeddwyd

    Changes in the quality of life of people with dementia living in care homes.

    Hoe, J., Hancock, G., Livingston, G., Woods, R. T., Challis, D. & Orrell, M., 1 Gorff 2009, Yn: Alzheimer Disease and Associated Disorders. 23, 3, t. 285-290

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  27. Cyhoeddwyd

    Peer support for family carers of people with dementia, alone or in combination with group reminiscence in a factorial design: study protocol for a randomised controlled trial

    Hoare, Z. S., Charlesworth, G., Burnell, K., Beecham, J., Hoare, Z., Hoe, J., Wenborn, J., Knapp, M., Russell, I., Woods, R. T. & Orrell, M., 15 Medi 2011, Yn: Trials. 12, 205, t. 1-9

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  28. Cyhoeddwyd

    “We’re happy as we are”: the experience of living with possible undiagnosed dementia.

    Henley, J., Hillman, A., Jones, I. R., Woods, B., MacLeod, C., Pentecost, C. & Clare, L., Medi 2023, Yn: Ageing and Society. 43, 9, t. 2041 - 2066 26 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  29. Cyhoeddwyd

    Quality of Life, Care Resource Use, and Costs of Dementia in 8 European Countries in a Cross-Sectional Cohort of the Actifcare Study

    Handels, R., Skoldunger, A., Bieber, A., Edwards, R., Gonçalves-Pereira, M., Hopper, L., Irving, K., Jelley, H., Kerpershoek, L., Marques, M. J., Meyer, G., Michelet, M., Portolani, E., Røsvik, J., Selbaek, G., Stephan, A., de Vught, M., Wolfs, C., Woods, R., Zanetti, O., Verhey, F. & Wimo, A., 23 Tach 2018, Yn: Journal of Alzheimer's Disease. 66, 3, t. 1027-1040

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  30. Cyhoeddwyd

    The needs of older people with dementia in residential care.

    Hancock, G. A., Woods, R. T., Challis, D. & Orrell, M., 1 Ion 2006, Yn: International Journal of Geriatric Psychiatry. 21, 1, t. 43-49

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  31. Cyhoeddwyd

    Characteristics of people living with undiagnosed dementia: findings from the CFAS Wales study.

    Gamble, L., Matthews, F., Jones, I., Hillman, A., Woods, B., MacLeod, C., Martyr, A., Collins, R., Pentecost, C., Rusted, J. & Clare, L., 10 Mai 2022, Yn: BMC Geriatrics. 22, 1, 409.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  32. Cyhoeddwyd

    ‘Just because the mind is confused it doesn’t mean the spirit is confused’: Exploring the role of Anglican clergy in ministry to persons with dementia.

    Friedrich Jr, R., Woods, B. & Williams, S., Chwef 2021, Yn: Dementia. 20, 2, t. 698–716

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  33. Cyhoeddwyd

    Living alone and cognitive function in later life

    Evans, I. E. M., Llewellyn, D. J., Matthews, F. E., Woods, R., Brayne, C., Clare, L. & CFAS-Wales research team, Maw 2019, Yn: Archives of Gerontology and Geriatrics. 81, March-April, t. 222-233

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  34. Cyhoeddwyd

    Social isolation, cognitive reserve, and cognition in healthy older people

    CFAS-Wales research team, 17 Awst 2018, Yn: PLoS ONE. 13, 8, e0201008.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  35. Cyhoeddwyd

    Strain in nursing care of people with dementia: Nurses’ experience in Australia, Sweden and United Kingdom

    Edberg, A. E., Bird, M., Richards, D. A., Woods, R. T., Keeley, P. & Davis-Quarrell, V., Maw 2008, Yn: Aging and Mental Health. 12, 2, t. 236-243

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  36. Cyhoeddwyd

    What do general practitioners tell people with dementia and their families about the condition? A survey of experiences in Scotland

    Downs, M., Clibbens, R., Rae, C., Cook, A. & Woods, R. T., 1 Ion 2002, Yn: Dementia. 1, 1, t. 47-58

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  37. Cyhoeddwyd

    Older adults and withdrawal from benzodiazepine hypnotics in general practice: Effects on cognitive function, sleep, mood and quality of life.

    Curran, H. V., Collins, R., Fletcher, S., Kee, S. C., Woods, R. T. & Iliffe, S., 25 Medi 2003, Yn: Psychological Medicine. 33, 7, t. 1223-1237

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  38. Cyhoeddwyd

    Staff factors associated with perception of behaviour as 'challenging' in residential and nursing homes

    Cook, E. M., Woods, R. T. & Gardiner, E., 1 Chwef 2000, Yn: Aging and Mental Health. 4, 1, t. 48-55

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  39. Cyhoeddwyd

    Measuring the well-being of people with dementia: a conceptual scoping review.

    Clarke, C., Woods, B., Moniz-Cook, E., Mountain, G., Øksnebjerg, L., Chattat, R., Diaz, A., Gove, D., Vernooij-Dassen, M. & Wolverson, E., 24 Gorff 2020, Yn: Health and Quality of Life Outcomes. 18, 1, 14 t., 249.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  40. Cyhoeddwyd

    Self-concept in early stage dementia: profile, course, correlates, predictors and implications for quality of life

    Clare, L., Whitaker, C. J., Nelis, S. M., Martyr, A., Markova, I. S., Roth, I., Woods, R. T. & Morris, R. G., 1 Mai 2013, Yn: International Journal of Geriatric Psychiatry. 28, 5, t. 494-503

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  41. Cyhoeddwyd

    A quiet revolution: advances in the understanding of dementia.

    Clare, L., Baddeley, A., Moniz-Cook, E. D. & Woods, R. T., 1 Ion 2003, Yn: Psychologist. 16, t. 250-254

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  42. Cyhoeddwyd

    Memory Awareness Profiles Differentiate Mild Cognitive Impairment from Early-Stage Dementia: Evidence from Assessments of Performance Monitoring and Evaluative Judgement

    Clare, L., Whitaker, C. J., Roberts, J. L., Nelis, S. M., Martyr, A., Markova, I. S., Roth, I., Woods, R. T. & Morris, R. G., 1 Mai 2013, Yn: Dementia and Geriatric Cognitive Disorders. 35, 5-6, t. 266-279

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  43. Cyhoeddwyd

    Marital relationship quality in early-stage dementia: Perspectives from people with dementia and their Spouses

    Clare, L., Nelis, S. M., Whitaker, C. J., Martyr, A., Markova, I. S., Roth, I., Woods, R. T. & Morris, R., 13 Rhag 2011, Yn: Alzheimer Disease and Associated Disorders.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  44. Cyhoeddwyd

    AwareCare: a pilot randomized controlled trial of an awareness-based staff training intervention to improve quality of life for residents with severe dementia in long-term care settings

    Clare, L., Whitaker, R., Woods, R. T., Quinn, C., Jelley, H. Y., Hoare, Z. S., Woods, J., Downs, M. & Wilson, B. A., 1 Ion 2013, Yn: International Psychogeriatrics. 25, 1, t. 128-139

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  45. Cyhoeddwyd

    “I Don’t Think Of It As An Illness”: Illness Representations in Mild to Moderate Dementia

    Clare, L., Quinn, C., Rees Jones, I. & Woods, R., 27 Chwef 2016, Yn: Journal of Alzheimer's Disease. 51, 1, t. 139-150

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  46. Cyhoeddwyd

    Longitudinal trajectories of awareness in early-stage dementia

    Clare, L., Nelis S.M., N. V., Martyr A., N. V., Roberts, J., Whitaker, C. J., Markova, I. S., Roth, I., Woods, R. T. & Morris, R. G., 13 Rhag 2011, Yn: Alzheimer Disease and Associated Disorders.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  47. Cyhoeddwyd

    Individual goal-oriented cognitive rehabilitation to improve everyday functioning for people with early-stage dementia: a multi-centre randomised controlled trial (the GREAT trial)

    Clare, L., Kudlicka, A., Oyebode, J. R., Jones, R. W., Bayer, A., Leroi, I., Kopelman, M., James, I., Culverwell, A., Pool, J., Brand, A., Henderson, C., Hoare, Z., Knapp, M. & Woods, R., Mai 2019, Yn: International Journal of Geriatric Psychiatry. 34, 5, t. 709-721 13 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  48. Cyhoeddwyd

    Cognitive rehabilitation in dementia: A Special Issue of Neuropsychological Rehabilitation

    Clare, L. (gol.) & Woods, B. (gol.), 19 Gorff 2001, 2001 gol. Psychology Press. 338 t.

    Allbwn ymchwil: Llyfr/AdroddiadLlyfr

  49. Cyhoeddwyd

    Goal-setting in cognitive rehabilitation for people with early-stage Alzheimer's disease

    Clare, L., Evans, S., Parkinson, C., Woods, R. T. & Linden, D., 19 Ebr 2011, Yn: Clinical Gerontologist. 34, 3, t. 220-236

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  50. Cyhoeddwyd

    Goal-oriented cognitive rehabilitation for early-stage Alzheimer's and related dementias: the GREAT RCT

    Clare, L., Kudlicka, A., Oyebode, J. R., Jones, R. W., Bayer, A., Leroi, I., Kopelman, M., James, I., Culverwell, A., Pool, J., Brand, A., Henderson, C., Hoare, Z., Knapp, M., Morgan-Trimmer, S., Burns, A., Corbett, A., Whitaker, R. & Woods, R., 15 Maw 2019, Yn: Health Technology Assessment. 23, 10, t. 1-242 242 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid