Prifysgol Bangor
- Cyhoeddwyd
MEDEX 2015: Heart Rate Variability Predicts Development of Acute Mountain Sickness
Sunderland, A., Freer, J., Evans, L., Dolci, A., Crotti, M. & Macdonald, J., 1 Medi 2017, Yn: High Altitude Medicine and Biology. 18, 3, t. 199-208Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
MEDEX 2015: Prophylactic effects of positive expiratory pressure in trekkers at very high altitude.
Rupp, T., Maufrais, C., Walther, G., Esteve, F., Macdonald, J., Bouzat, P. & Verges, S., 21 Medi 2021, Yn: Frontiers in Physiology. 12, 710622.Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
MEDEX2015: Greater sea-level fitness is associated with lower sense of effort during Himalayan trekking without worse Acute Mountain Sickness
Rossetti, G., Macdonald, J., Smith, M., Jackson, A., Callender, N., Newcombe, H. K., Storey, H., Willis, S., van den Beukel, J., Woodward, J., Pollard, J., Wood, B., Newton, V., Virian, J., Haswell, O. & Oliver, S., 1 Meh 2017, Yn: High Altitude Medicine and Biology. 18, 2, t. 152-162Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
MHC adaptice divergence between closely related and sympatric african cichlids.
Blais, J., Rico, C., Van Oosterhout, C., Cable, J., Turner, G. F. & Bernatchez, L., 15 Awst 2007, Yn: PLoS ONE. 2, 8, t. e734Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
MIMO generalized predictive control for a hydroelectric power station.
Jones, D. I., Munoz-Hernandez, G. A. & Jones, D., 1 Ion 2006, Yn: IEEE Transactions on Energy Conversion. 21, 4, t. 921-929Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
MIR and NIR nonlinear optical processing using intersubband x(3) in triple quantum well structures.
Banerjee, S. & Shore, K. A., 1 Gorff 2003, Yn: Semiconductor Science and Technology. 18, 7, t. 655-660Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
MOCVD of highly conductive CdO thin films.
Ellis, D. M. & Irvine, S. J., 1 Meh 2004, Yn: Journal of Materials Science: Materials in Electronics. 15, 6, t. 369-372Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
MODELLING THE EFFECTS OF GLOBAL TEMPERATURE INCREASE ON THE GROWTH OF SALT MARSH PLANTS
Couto, T., Martins, I., Duarte, B. & Cacador, I., 1 Awst 2014, Yn: Applied Ecology and Environmental Research. 12, 3, t. 753-764Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
MRI Gastric Images Processing using a Multiobjective Fly Algorithm
Al-Maliki, S., Lutton, E., Boue, F. & Vidal, F., 8 Medi 2018.Allbwn ymchwil: Cyfraniad at gynhadledd › Papur › adolygiad gan gymheiriaid
- Cyhoeddwyd
MRNIP is a replication fork protection factor
Bennett, L., Wilkie, A., Antonopoulou, E., Ceppi, I., Sanchez, A., Vernon, E., Gamble, A., Myers, K. N., Collis, S. J., Cejka, P. & Staples, C., 10 Gorff 2020, Yn: Science Advances. 6, 28, 10 t., eaba5974.Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
MRNIP/C5orf45 Interacts with the MRN Complex and Contributes to the DNA Damage Response
Staples, C. J., Barone, G., Myers, K. N., Ganesh, A., Gibbs-Seymour, I., Patil, A. A., Beveridge, R. D., Daye, C., Beniston, R., Maslen, S., Ahel, I., Skehel, J. M. & Collis, S. J., 6 Medi 2016, Yn: Cell. 16, 10, t. 2565-75 11 t.Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
MaKE Measures: A Synthesis of a KM Process with Intangible Assets: Proceedings of the 5th Conference on Knowledge Management
Sharp, P. & Begley, S., Medi 2004, t. 805-818. 14 t.Allbwn ymchwil: Cyfraniad at gynhadledd › Papur › adolygiad gan gymheiriaid
- Cyhoeddwyd
Machine bundles woodfuel bales from the residue of clear-fell sites
Walmsley, J. D., 1 Ion 2007, Yn: Gwlad. 61, t. 15Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Machine learning for ecosystem services
Willcock, S., Martinez-Lopez, J., Hooftman, D., Bagstad, K., Balbi, S., Marzo, A., Prato, C., Sciandrello, S., Signorello, G., Voigt, B., Villa, F., Bullock, J. & Athanasiadis, I., Hyd 2018, Yn: Ecosystem Services. 33 pt B, t. 165-174 19 t.Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Machine learning in marine ecology an overview of techniques and applications
Rubbens, P., Brodie, S., Cordier, T., Destro Barcellos, D., Devos, P., A Fernandes-Salvador, J., I Fincham, J., Gomes, A., Olav Handegard, N., Howell, K. L., Jamet, C., Heldal Kartveit, K., Moustahfid, H., Parcerisas, C., Politikos, D., Sauzède, R., Sokolova, M., Uusitalo, L., Van den Bulcke, L., TM van Helmond, A., T Watson, J., Welch, H., Beltran-Perez, O., Chaffron, S., S Greenberg, D., Kühn, B., Kiko, R., Lo, M., M Lopes, R., Ove Möller, K., Michaels, W., Pala, A., Romagnan, J-B., Schuchert, P., Seydi, V., Villasante, S., Malde, K. & Irisson, J-O., 1 Medi 2023, Yn: ICES Journal of Marine Science. 80, 7Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Macht und Ohnmacht des positivistischen Denkens. Der Positivismus in der deutschsprachigen Ur- und Frühgeschichte unter besonderer Berücksichtigung des Instituts für Ur- und Frühgeschichte in Wien
Karl, R., 1 Ion 2010, Beier & Beran.Allbwn ymchwil: Llyfr/Adroddiad › Llyfr
- Cyhoeddwyd
Macro- and micro-geographic variation in pantophysin (Panl) allele frequencies in NE Atlantic cod Gadus morhua
Case, R. A., Hutchinson, W. F., Hauser, L., Van Oosterhout, C. & Carvalho, G. R., 11 Hyd 2005, Yn: Marine Ecology Progress Series. 301, t. 267-278Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Macro- and microplastic accumulation in soil after 32 years of plastic film mulching
Li, S., Ding, F., Flury, M., Wang, Z., Xu, L., Li, S., Jones, D. L. & Wang, J., 1 Mai 2022, Yn: Environmental Pollution. 300Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Macro-nutrient concentrations in Antarctic pack ice: Overall patterns and overlooked processes
Fripiat, F., Meiners, K. M., Vancoppenolle, M., Papadimitriou, S., Thomas, D. N., Ackley, S. F., Arrigo, K. R., Carnet, G., Cozzi, S., Delille, B., Dieckmann, G. S., Dunbar, R. B., Fransson, A., Kattner, G., Kennedy, H., Lannuzel, D., Munro, D. R., Nomura, D., Rintala, J-M., Schoemann, V., Stefels, J., Steiner, N. & Tison, J-L., 29 Maw 2017, Yn: Elementa: Science of the Anthropocene. 5Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Macroalgae exhibit diverse responses to human disturbances on coral reefs
Cannon, S., Donner, S., Liu, A., Gonzalez Espinosa, P., Baird, A., Baum, J., Bauman, A., Beger, M., Benkwitt, C., Birt, M., Chancerelle, Y., Cinner, J., Crane, N., Denis, V., Depczynski, M., Fadli, N., Fenner, D., Fulton, C., Golbuu, Y., Graham, N., Guest, J., Harrison, H., Hobbs, J-P., Hoey, A., Holmes, T., Houk, P., Januchowski-Hartley, F., Jompa, J., Kuo, C-Y., Valentino Limmon, G., Lin, Y., McClanahan, T., Muenzel, D., Paddack, M., Planes, S., Pratchett, M., Radford, B., Reimer, J., Richards, Z., Ross, C., Rulmal Jr., J., Sommer, B., Williams, G. J. & Wilson, S., 1 Meh 2023, Yn: Global Change Biology. 29, 12, t. 3318-3330Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Macroalgal responses to experimental nutrient enrichment in shallow coastal waters: growth, internal nutrient pools, and isotopic signatures.
Teichberg, M., Fox, S. E., Aguila, C., Olsen, Y. S. & Valiela, I., 25 Medi 2008, Yn: Marine Ecology Progress Series. 368, t. 117-126Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Macrocosm and Microcosm in Household Manuscript Cambridge University Library Ff.2.38
Radulescu, R., 9 Hyd 2019, Household Knowledges in late-Medieval England and France. Burger, G. D. & Critten, R. (gol.). Manchester University Press, t. 201-18 18 t. (Manchester Medieval Literature and Culture).Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Pennod › adolygiad gan gymheiriaid
- Cyhoeddwyd
Macrofaunal communities associated with chemosynthetic habitats from the US Atlantic margin: A comparison among depth and habitat types
Bourque, J. R., Robertson, C. M., Brooke, S. & Demopoulos, A. W. J., Maw 2017, Yn: Deep Sea Research Part II: Topical Studies in Oceanography. 137, t. 42-55Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Macrofaunal patterns and animal–sediment relationships in Uruguayan estuaries and coastal lagoons (Atlantic coast of South America)
Gimenez, L., Venturini, N., Kandratavicius, N., Hutton, M., Lanfranconi, A., Rodriguez, M., Brugnoli, E. & Muniz, P., 1 Maw 2014, Yn: Journal of Sea Research. 87, t. 46-55Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Macropedius, Georgius
Schmidt, T. C., Schmidt-Beste, T. C., Vente, M. A. & Finscher, L. (gol.), 1 Ion 2004, Die Musik in Geschichte und Gegenwart. 2004 gol. Bärenreiter / Metzler, t. 772-73Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Pennod
- Cyhoeddwyd
Macrophage inflammatory protein-1 alpha receptors are present on cells enriched for CD34 expression from patients with chronic myeloid leukemia.
RC, C., GS, L., PJ, O-L., A, P. & AD, W., 1 Rhag 1995, Yn: Blood. 86, 11, t. 4270-4277Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Macroprudential Policy and Bank Risk
Altunbas, Y., Binici, M. & Gambacorta, L., 18 Gorff 2017, CEPR Discussion Paper, t. 1, 47 t.Allbwn ymchwil: Papur gweithio › Papur Gwaith
- Cyhoeddwyd
Macroprudential Policy and Bank Risk
Altunbas, Y., Binici, M. & Gambacorta, L., 3 Gorff 2017, Bank for International Settlements (BIS), t. 1, 48 t. (BIS Working Papers; Rhif 646).Allbwn ymchwil: Papur gweithio › Papur Gwaith
- Cyhoeddwyd
Macroprudential policy and bank risk
Altunbas, Y., Binici, M. & Gambacorta, L., 1 Maw 2018, Yn: Journal of International Money and Finance. 81, March, t. 203-220Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Macroscopic 'acid streamer' growths in acidic, metal-rich mine waters in north Wales consist of novel and remarkably simple bacterial communities
Hallberg, K., Coupland, K., Kimura, S. & Johnson, D. B., 1 Maw 2006, Yn: Applied and Environmental Microbiology. 72, 3, t. 2022-2030Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Macrotidal rip current experiment : circulation and dynamics
Austin, M. J., Scott, T. M., Brown, J. W., Brown, J. A. & Macmahan, J. H., 2009, Yn: Journal of Coastal Research. 2009, 56, t. 24-28Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Macsen: A Voice Assistant for Speakers of a Lesser Resourced Language
Jones, D., Mai 2020, t. 194-201.Allbwn ymchwil: Cyfraniad at gynhadledd › Papur › adolygiad gan gymheiriaid
- Cyhoeddwyd
Madagascar's extraordinary biodiversity: Evolution, distribution, and use
Antonelli, A., Smith, R. J., Perrigo, A. L., Crottini, A., Hackel, J., Testo, W., Farooq, H., Torres Jiménez, M. F., Andela, N., Andermann, T., Andriamanohera, A. M., Andriambololonera, S., Bachman, S. P., Bacon, C. D., Baker, W. J., Belluardo, F., Birkinshaw, C., Borrell, J. S., Cable, S., Canales, N. A., Carrillo, J. D., Clegg, R., Clubbe, C., Cooke, R. S. C., Damasco, G., Dhanda, S., Edler, D., Faurby, S., de Lima Ferreira, P., Fisher, B. L., Forest, F., Gardiner, L. M., Goodman, S. M., Grace, O. M., Guedes, T. B., Henniges, M. C., Hill, R., Lehmann, C. E. R., Lowry, P. P., Marline, L., Matos-Maraví, P., Moat, J., Neves, B., Nogueira, M. G. C., Onstein, R. E., Papadopulos, A. S. T., Perez-Escobar, O. A., Phelps, L. N., Phillipson, P. B., Pironon, S., Przelomska, N. A. S., Rabarimanarivo, M., Rabehevitra, D., Raharimampionona, J., Rajaonah, M. T., Rajaonary, F., Rajaovelona, L. R., Rakotoarinivo, M., Rakotoarisoa, A. A., Rakotoarisoa, S. E., Rakotomalala, H. N., Rakotonasolo, F., Ralaiveloarisoa, B. A., Ramirez-Herranz, M., Randriamamonjy, J. E. N., Randriamboavonjy, T., Randrianasolo, V., Rasolohery, A., Ratsifandrihamanana, A. N., Ravololomanana, N., Razafiniary, V., Razanajatovo, H., Razanatsoa, E., Rivers, M., Sayol, F., Silvestro, D., Vorontsova, M. S., Walker, K., Walker, B. E., Wilkin, P., Williams, J., Ziegler, T., Zizka, A. & Ralimanana, H., 2 Rhag 2022, Yn: Science. 378, 6623, eabf0869.Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Madagascar's extraordinary biodiversity: Threats and opportunities
Ralimanana, H., Perrigo, A. L., Smith, R. J., Borrell, J. S., Faurby, S., Rajaonah, M. T., Randriamboavonjy, T., Vorontsova, M. S., Cooke, R. S. C., Phelps, L. N., Sayol, F., Andela, N., Andermann, T., Andriamanohera, A. M., Andriambololonera, S., Bachman, S. P., Bacon, C. D., Baker, W. J., Belluardo, F., Birkinshaw, C., Cable, S., Canales, N. A., Carrillo, J. D., Clegg, R., Clubbe, C., Crottini, A., Damasco, G., Dhanda, S., Edler, D., Farooq, H., de Lima Ferreira, P., Fisher, B. L., Forest, F., Gardiner, L. M., Goodman, S. M., Grace, O. M., Guedes, T. B., Hackel, J., Henniges, M. C., Hill, R., Lehmann, C. E. R., Lowry, P. P., Marline, L., Matos-Maraví, P., Moat, J., Neves, B., Nogueira, M. G. C., Onstein, R. E., Papadopulos, A. S. T., Perez-Escobar, O. A., Phillipson, P. B., Pironon, S., Przelomska, N. A. S., Rabarimanarivo, M., Rabehevitra, D., Raharimampionona, J., Rajaonary, F., Rajaovelona, L. R., Rakotoarinivo, M., Rakotoarisoa, A. A., Rakotoarisoa, S. E., Rakotomalala, H. N., Rakotonasolo, F., Ralaiveloarisoa, B. A., Ramirez-Herranz, M., Randriamamonjy, J. E. N., Randrianasolo, V., Rasolohery, A., Ratsifandrihamanana, A. N., Ravololomanana, N., Razafiniary, V., Razanajatovo, H., Razanatsoa, E., Rivers, M., Silvestro, D., Testo, W., Torres Jiménez, M. F., Walker, K., Walker, B. E., Wilkin, P., Williams, J., Ziegler, T., Zizka, A. & Antonelli, A., 2 Rhag 2022, Yn: Science. 378, 6623, eadf1466.Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl adolygu › adolygiad gan gymheiriaid
- Cyhoeddwyd
Madagascar: Crime threatens biodiversity
Jones, J. P. G., Ratsimbazafy, J., Ratsifandrihamanana, A. N., Watson, J. E. M., Andrianandrasana, H. T., Cabeza, M., Cinner, J. E., Goodman, S. M., Hawkins, F., Mittermeier, R. A., Rabearisoa, A. L., Rakotonarivo, O. S., Razafimanahaka, J. H., Razafimpahanana, A. R., Wilmé, L. & Wright, P. C., 22 Chwef 2019, Yn: Science. 363, 6429, t. 825-825Allbwn ymchwil: Cyfraniad at gyfnodolyn › Llythyr › adolygiad gan gymheiriaid
- Cyhoeddwyd
Madera modificada: un futuro robusto para la utilización de la madera
Ormondroyd, G. A., 30 Medi 2011.Allbwn ymchwil: Cyfraniad at gynhadledd › Papur
- Cyhoeddwyd
Madness explained: Psychosis and human nature
Bentall, R. P., 1 Ion 2004, Penguin.Allbwn ymchwil: Llyfr/Adroddiad › Llyfr
- Cyhoeddwyd
Madness explained: Why we must reject the Kraepelinian paradigm and replace it with a 'complaint-orientated' approach to understanding mental illness.
Bentall, R. P., 1 Ion 2006, Yn: Medical Hypotheses. 66, 2, t. 220-233Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Madrigals and church music reform: New perspectives on parody masses and spiritual madrigals in Italy and Central Europe
Leitmeir, C., Maw 2012, The Boundaries of Musical Humanism: Slavic Regions & Mediterranean Culture. Guerrieri, M. & Zara, V. (gol.).Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Cyfraniad i Gynhadledd
- Cyhoeddwyd
Mae Kinnock yn ddieuog - yn y bôn.
Edwards, A. C., 1 Maw 2009, Yn: Barn. 554, t. 17-18Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Mae Pawb yn Cyfrif: stori ryfeddol y Cymry a’u rhifau
Ffowc Roberts, G., 2012, Gomer Press.Allbwn ymchwil: Llyfr/Adroddiad › Llyfr
- Cyhoeddwyd
Mae angen dŵr a haul i dyfu: tlodi addysg wledig yng Nghymru
Spencer, L. H. & ap Gruffudd, G. S., 3 Gorff 2018Allbwn ymchwil: Cyfraniad arall › Cyfraniad Arall
- Cyhoeddwyd
Mae gennyf gred, mae gennyf gân': Rhai themâu ym marddoniaeth Pennar Davies.
Morgan, D. D., 1 Gorff 2005, Yn: Llên Cymru. 28, t. 160-177Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Maessins, Pieter
Schmidt, T. C., Schmidt-Beste, T. C., Wessely, O. & Finscher, L. (gol.), 1 Ion 2004, Die Musik in Geschichte und Gegenwart. 2004 gol. Bärenreiter / Metzler, t. 792-93Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Pennod
- Cyhoeddwyd
Mafia, devotion and religious festivals : power between the sacred and the profane.
Merlino, R., 4 Tach 2013Allbwn ymchwil: Ffurf annhestunol › Safe Gwe / Cyhoeddiad Gwe
- Cyhoeddwyd
Magdalen College and the organ, 1597-1733: religious outlook and physical location.
Harper, J. M., 10 Ebr 2008.Allbwn ymchwil: Cyfraniad at gynhadledd › Papur
- Cyhoeddwyd
Magdalenenberg.
Karl, R. & Koch, J. T. (gol.), 1 Ion 2006, Celtic Culture: A Historical Encyclopedia.. 2006 gol. ABC-CLIO Ltd, t. 1240-1241Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Pennod
- Cyhoeddwyd
Magical Mammals: Red squirrels in North West Wales
Shuttleworth, C., 2021, Saving the red squirrel: landscape recovery. Shuttleworth, C. M., Lurz, P. W. W. & Robinson, N. J. (gol.). Red Squirrel Survival Trust, t. 269-278Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Pennod
- Cyhoeddwyd
Magical ideation and its relation to lateral preference.
Nicholls, M. E., Orr, C. A. & Lindell, A. K., 1 Tach 2005, Yn: Laterality. 10, 6, t. 503-515Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Magie, Akupunktur und Penizillin: Medizinischer Pluralismus bei den Purhépecha
Schmidt, B. E. & Schmidt, B., 1 Ion 2004Allbwn ymchwil: Ffurf annhestunol › Safe Gwe / Cyhoeddiad Gwe