Coleg Gwyddoniaeth a Pheirianneg

  1. 2024
  2. Cyhoeddwyd

    Getting bed shear stresses right in the wake of an object in TELEMAC 3D.

    Unsworth, C., McCarron, C., Van Landeghem, K., Whitehouse, R., Benson, T. & Barranco, I., 8 Hyd 2024, t. 1-7. 7 t.

    Allbwn ymchwil: Cyfraniad at gynhadleddPapuradolygiad gan gymheiriaid

  3. Cyhoeddwyd

    Decision tree insights analytics (DTIA) tool: an analytic framework to identify insights from large data records across fields of science

    Hossny, K., Hossny, M., Cougnoux, A., Mahmoud, L. & Villanueva, W., 7 Hyd 2024, Yn: Machine Learning: Science and Technology. 5, 4, 045004.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  4. E-gyhoeddi cyn argraffu

    Melt sensitivity of irreversible retreat of Pine Island Glacier

    Reed, B., Green, M., Jenkins, A. & Gudmundsson, H., 7 Hyd 2024, (E-gyhoeddi cyn argraffu) Yn: Cryosphere. 18, t. 4567-4587

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  5. Cyhoeddwyd

    Surging compound drought–heatwaves underrated in global soils

    Fan, X., Zhang, Y., Shi, K., Peng, J., Liu, Y., Zhou, Y., Liu, Y., Zhu, Q., Song, C., Wan, R., Zhao, X. & Woolway, R. I., 7 Hyd 2024, Yn: Proceedings of the National Academy of Sciences. 121, 42, t. e2410294121

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  6. Cyhoeddwyd

    Daily germination rates of temperate tree species’ seed under elevated ozone fumigation

    Atkin-Willoughby, J. (Arall), Smith, A. (Arall), Peters, T. (Arall) & Wang, Z. (Arall), 2 Hyd 2024

    Allbwn ymchwil: Ffurf annhestunolData/Bas Data

  7. Cyhoeddwyd

    Exploring diffusion bonding of niobium and its alloys with tungsten and a molybdenum alloy for high-energy particle target applications

    Griesemer, T., Ximenes, R. F., Ahdida, C., Izquierdo, G. A., Santillana, I. A., Callaghan, J., Dumont, G., Dutilleul, T., Terricabras, A. G., Höll, S., Jacobsson, R., Kyffin, W., Mamun, A. A., Mazzola, G., Fontenla, A. T. P., Frutos, O. S. D., Esposito, L. S., Sgobba, S. & Calviani, M., 2 Hyd 2024, arXiv.

    Allbwn ymchwil: Papur gweithioRhagargraffiad

  8. E-gyhoeddi cyn argraffu

    Among-individual differences in risk-taking behavior are associated with shell repair rate but not growth in a marine gastropod

    Cornwell, T., Colvin, C. & McCarthy, I., 1 Hyd 2024, (E-gyhoeddi cyn argraffu) Yn: Behavioral Ecology and Sociobiology. 78, 103

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  9. Cyhoeddwyd

    An ensemble-based projection of future hydro-climatic extremes in Iran

    Jahanshahi, A., Booij, M., Patil, S. & Gupta, H., 1 Hyd 2024, Yn: Journal of Hydrology. 642, 131892.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  10. Cyhoeddwyd

    An experimental study on the impact of particle surface wettability on melt infiltration in particulate beds

    Chen, L., Komlev, A., Ma, W., Bechta, S., Villanueva, W., Rangavittal, B. V., Glaser, B. & Hoseyni, S. M., 1 Hyd 2024, Yn: Annals of Nuclear Energy. 206, 110664.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  11. Cyhoeddwyd

    Building semi-supervised decision trees with semi-cart algorithm

    Abedinia, A. & Seydi, V., 1 Hyd 2024, Yn: International Journal of Machine Learning and Cybernetics. 15, 10, t. 4493-4510 18 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  12. Cyhoeddwyd

    Coral reef recovery in a remote and large marine protected area is resilient to cascading trophic interactions

    McDevitt-Irwin, J. M., Chapuis, M., Carlson, R., Meekan, M., Palmisciano, M., Roche, R., Taylor, B. M., Tietjen, K. L., Tillman, C. & Micheli, F., 1 Hyd 2024, Yn: Biological Conservation. 298

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  13. Cyhoeddwyd

    Field-based assessment of the effect of conventional and biodegradable plastic mulch film on nitrogen partitioning, soil microbial diversity, and maize biomass

    Graf, M., Greenfield, L., Reay, M. K., Bargiela, R., Golyshin, P., Evershed, R. P., Lloyd, C. E. M., Williams, G., Chadwick, D. & Jones, D. L., 1 Hyd 2024, Yn: Applied Soil Ecology. 202, 105595.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  14. Cyhoeddwyd

    Floating plastics as a potential dispersal vector for rafting marine non-native species

    González -Ortegó , E., Demmer, J., Robins, P. & Jenkins, S., 1 Hyd 2024, Yn: Marine Pollution Bulletin. 207, 116919.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  15. Cyhoeddwyd

    High among-species variability in the context dependence of herbivory across disturbance, weather and topoedaphic gradients

    Sutton, A., Ratajczak, Z. & Louthan, A., 1 Hyd 2024, Yn: Journal of Ecology. 112, 10, t. 2237-2248

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  16. Cyhoeddwyd

    Interlaboratory study of the operational stability of automated sorption balances.

    Zelinka, S., Glass, S., Lazarcik, E., Thybring, E., Altgen, M., Rautkari, L., Curling, S., Cao, J., Wang, Y., Kunniger, T., Nystrom, G., Dreimol, C. H., Burgert, I., Uyup, M. K. A., Khadiran, T., Roper, M., Broom, D., Schwarzkopf, M., Yudhanto, A., Subah, M., Lubineau, G., Fredriksson, M., Strojecki, M., Olek, W., Majka, J., Pedersen, N. B., Burnett, D., Garcia, A., Verdonck, E., Dreisbach, F., Waguespack, L., Schott, J., Esteban, L., Garcia-Iruela, A., Colinart, T., Remond, R., Mazian, B., Perre, P., Emmerich, L. & Ling, L., 1 Hyd 2024, Yn: Adsorption. 30, 7, t. 1663-1674 12 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  17. Cyhoeddwyd

    Phosphorus fertilization promotes carbon cycling and negatively affects microbial carbon use efficiency in agricultural soils: Laboratory incubation experiments

    Sánchez-Rodríguez, A., Carmen del Campillo, M., Torrent, J., Cooledge, E., Chadwick, D. & Jones, D. L., 1 Hyd 2024, Yn: Geoderma. 450, 117038.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  18. Cyhoeddwyd

    Flow-induced Interfacial Deformation Structures (FIDS): Implications for the interpretation of palaeocurrents, flow dynamics and substrate rheology

    Peakall, J., Best, J., Baas, J., Wignall, P. B., Hodgson, D. M. & Łapcik, P., Hyd 2024, Yn: Sedimentology. 71, 6, t. 1709-1743

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  19. Cyhoeddwyd

    Supporting STEM Students’ Self-Regulatory Skills through Developing their Assessment Literacy and Evaluative Judgement Capabilities

    Grange, L., Evans, C. & Zhu, X., Hyd 2024, Research Handbook on Innovations in Assessment and Feedback in Higher Education: Implications for Teaching and Learning. Evans, C. & Waring, M. (gol.). Edward Elgar Publishing Ltd, t. 170-195

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion CynhadleddPennodadolygiad gan gymheiriaid

  20. Cyhoeddwyd

    The effect of experimental warming on reproductive performance and parental care in the burying beetle Nicrophorus nepalensis

    Malik, T., Jarrett, B. & Sun, S.-J., Hyd 2024, Yn: Royal Society Open Science. 11, 10, t. 240653

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  21. Cyhoeddwyd

    The global loss of avian functional and phylogenetic diversity from anthropogenic extinctions

    Matthews, T. J., Triantis, K. A., Wayman, J. P., Martin, T. E., Hume, J. P., Cardoso, P., Faurby, S., Mendenhall, C. D., Dufour, P., Rigal, F., Cooke, R., Whittaker, R. J., Pigot, A. L., Thébaud, C., Jørgensen, M. W., Benavides, E., Soares, F. C., Ulrich, W., Kubota, Y., Sadler, J. P., Tobias, J. A. & Sayol, F., Hyd 2024, Yn: Science. 386, 6717, t. 55-60 6 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  22. Cyhoeddwyd

    Accounting for extinction dynamics unifies the geological and biological histories of Indo-Australian Archipelago

    Herrera-Alsina, L., Lancaster, L. T., Algar, A. C., Bocedi, G., Papadopulos, A. S. T., Gubry-Rangin, C., Osborne, O. G., Mynard, P., Creer, S., Villegas-Patraca, R., Made Sudiana, I., Fahri, F., Lupiyaningdyah, P., Nangoy, M., Iskandar, D. T., Juliandi, B., Burslem, D. F. R. P. & Travis, J. M. J., 30 Medi 2024, Yn: Proceedings of the Royal Society B: Biological Sciences. 291, 2031, t. 20240966

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  23. Cyhoeddwyd

    Chaotic Digital Filter-based Physical Layer Security for Heterogeneous Access Networks

    Giddings, R., He, J., Jin, W. & Tang, J., 30 Medi 2024.

    Allbwn ymchwil: Cyfraniad at gynhadleddPapuradolygiad gan gymheiriaid

  24. E-gyhoeddi cyn argraffu

    Design and performance of the Climate Change Initiative Biomass global retrieval algorithm

    Santoro, M., Cartus, O., Quegan, S., Kay, H., Lucas, R. M., Araza, A., Herold, M., Labriere, N., Chave, J., Rosenqvist, Å., Tadono, T., Kobayashi, K., Kellndorfer, J., Avitabile, V., Brown, H., Carreiras, J., Campbell, M., Cavlovic, J., da Conceição Bispo, P., Gilani, H., Latif Khan, M., Kumar, A., Lewis, S. L., Liang, J., Mitchard, E. T. A., Pascagaza, A. M. P., Phillips, O. L., Ryan, C. M., Saikia, P., Schepaschenko, D., Sukhdeo, H., Verbeeck, H., Vieilledent, G., Wijaya, A., Willcock, S. & Martin Seifert, F., 30 Medi 2024, (E-gyhoeddi cyn argraffu) Yn: Science of Remote Sensing. 10, t. 100169 100169.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  25. Cyhoeddwyd

    The role of communities and connections in social welfare legal advice

    Nason, S., Butcher, P., Closs-Davies, S., Jasny, L., Hughes, S. (Cyfrannwr), Martikke, S., Osifo , F. (Cyfrannwr) & Poole , L., 30 Medi 2024, Bangor University, British Academy & Nuffield Foundation . 77 t.

    Allbwn ymchwil: Llyfr/AdroddiadAdoddiad Aralladolygiad gan gymheiriaid

  26. E-gyhoeddi cyn argraffu

    Disintegration highway: Towards a psychogeography of planetary urban breakdown

    Wilson, J., 27 Medi 2024, (E-gyhoeddi cyn argraffu) Yn: Singapore Journal of Tropical Geography.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  27. Cyhoeddwyd

    Will Meta’s Orion smart glasses be the next ‘iPhone moment’? Expert Q&A

    Ap Cenydd, L., Ritsos, P. D. & Butcher, P., 27 Medi 2024, The Conversation.

    Allbwn ymchwil: Cyfraniad at gyhoeddiad arbenigolErthygl

  28. Cyhoeddwyd

    Polymorphism, parallel evolution, and purpose of dewlap hue in Lesser Antillean Dactyloa anoles

    Thorpe, R., Johansson, H., Surget-Groba, Y. & Thorpe, J., 26 Medi 2024, Yn: Caribbean Herpetology. 96, 96, t. 1-13 13 t., 96.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  29. Cyhoeddwyd

    Selective logging impacts on soil microbial communities and functioning in Bornean tropical forest

    Robinson, S. J. B., Elias, D. M. O., Goodall, T., Nottingham, A. T., McNamara, N. P., Griffiths, R. I., Majalap, N. & Ostle, N. J., 26 Medi 2024, Yn: Frontiers in Microbiology. 15, t. 1447999

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  30. Cyhoeddwyd

    Ancient DNA helped us uncover the Iberian lynx’s potential secret weapon against extinction

    Barlow, A., Paijmans, J. L. A. & Godoy, J., 24 Medi 2024, The Conversation.

    Allbwn ymchwil: Cyfraniad at gyhoeddiad arbenigolErthygl

  31. E-gyhoeddi cyn argraffu

    Sidelobe Suppression Method with Improved CLEAN Algorithm for Pulse Compression OTDR

    Huang, Y., Chen, X., Shen, W., Wei, Z., Hu, C., Deng, C., Wang, L., Zhang, Q., Chen, W., Zhang, X., Chen, L., Jin, W., Tang, J. & Wang, T., 23 Medi 2024, (E-gyhoeddi cyn argraffu) Yn: IEEE Photonics Technology Letters. 36, 22

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  32. Cyhoeddwyd

    Different model assumptions about plant hydraulics and photosynthetic temperature acclimation yield diverging implications for tropical forest gross primary production under warming

    Zarakas, C., Swann, A. L. S., Koven, C., Smith, M. & Taylor, T., 20 Medi 2024, Yn: Global Change Biology. 30, 9, e17449.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  33. Cyhoeddwyd

    Intermittent Dynamics Identification and Prediction from Experimental Data of Discrete-Mode Semiconductor Lasers by Reservoir Computing

    Feng, S. D., Zhong, Z. Q., Her, H., Liu, R., Chen, J., Huang, X., Zhu, Y. & Hong, Y., 19 Medi 2024, Yn: Optics Express. 32, 20, t. 35952-35963

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  34. Cyhoeddwyd

    Lake ice quality in a warming world

    Culpepper, J., Jakobsson, E., Weyhenmeyer, G. A., Hampton, S. E., Obertegger, U., Shchapov, K., Woolway, R. I. & Sharma, S., 19 Medi 2024, Yn: Nature Reviews Earth & Environment. 5, 10, t. 671-685 15 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  35. Cyhoeddwyd

    An interdisciplinary research agenda for climate change and cultural heritage

    Forino, G., Yorke, L., Del Pinto, M., Griffiths, H., Barker, L., Bates, M., Brummage, S., Davies, S., Patterson, C., Roberts, H., Robinson, G. & Webb, A., 18 Medi 2024, Royal Geographical Society with the Institute of British Geographers .

    Allbwn ymchwil: Cyfraniad arallCyfraniad Aralladolygiad gan gymheiriaid

  36. E-gyhoeddi cyn argraffu

    Cross-cultural applications of the New Ecological Paradigm in protected area contexts

    Dorward, L., Ibbett, H., Dwiyahreni, A. A., Kohi, E. M., Prayitno, K., Sankeni, S., Kaduma, J. F., Mawenya, R., Mchomvu, J., Sabiladiyni, H., Saputra, A. W., Supriatna, J., Trywidiarini, T. & St. John, F. A. V., 18 Medi 2024, (E-gyhoeddi cyn argraffu) Yn: Environment and Behavior.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  37. E-gyhoeddi cyn argraffu

    Volatile organic compound (VOC) emissions from no-added-formaldehyde lignosulphonate/pMDI particleboards and their effect on indoor air quality

    Goncalves, S., Curling, S., Ormondroyd, G., Paiva, N., Martins, J., Magalhaes, F. & Carvalho, L., 18 Medi 2024, (E-gyhoeddi cyn argraffu) Yn: Wood Material Science and Engineering. t. 1-9 9 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  38. E-gyhoeddi cyn argraffu

    Impacts of “Reef Star” coral restoration on multiple metrics of habitat complexity

    Vida, R., Razak, T. B., Mogg, A. O. M., Roche, R., Lynch, J., Williams, B., Alisa, C. A. G., Subhan, B., Agus, S. B., Graham, N. A. J. & Lamont, T. A. C., 16 Medi 2024, (E-gyhoeddi cyn argraffu) Yn: Restoration Ecology. e14263.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  39. Cyhoeddwyd

    Data-Driven Erbium-doped Fiber Amplifier Gain Modeling Using Gaussian Process Regression

    Harvey, C., Faruk, M. S. & Savory, S. J., 15 Medi 2024, Yn: IEEE Photonics Technology Letters. 36, 18, t. 1097-1100 4 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  40. Cyhoeddwyd

    National-scale antimicrobial resistance surveillance in wastewater: A comparative analysis of HT qPCR and metagenomic approaches

    Knight, M. E., Webster, G., Perry, W. B., Baldwin, A., Rushton, L., Pass, D. A., Cross, G., Durance, I., Muziasari, W., Kille, P., Farkas, K., Weightman, A. J. & Jones, D. L., 15 Medi 2024, Yn: Water research. 262, t. 121989

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  41. Cyhoeddwyd

    Palaeogenomic data from a Late Pleistocene coprolite clarifies the phylogenetic position of Sicilian cave hyena

    Catalano, G., Iurino, D. A., Modi, A., Paijmans, J., Sardella, R., Sineo, L., Caramelli, D. & Barlow, A., 15 Medi 2024, Yn: Quaternary Science Reviews. 340, 108859.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  42. E-gyhoeddi cyn argraffu

    Communications enhance sustainable intentions despite other ongoing crises

    Nguyen, T. H. N., Willcock, S. & Hassan, L., 14 Medi 2024, (E-gyhoeddi cyn argraffu) Yn: Sustainability Science. 40 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  43. Cyhoeddwyd

    Substantial increase of organic carbon storage in Chinese lakes

    Liu, D., Shi, K., Chen, P., Yan, N., Ran, L., Kutser, T., Tyler, A. N., Spyrakos, E., Woolway, R. I., Zhang, Y. & Duan, H., 14 Medi 2024, Yn: Nature Communications. 15, 1

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  44. E-gyhoeddi cyn argraffu

    Book Review: Global Libidinal Economy

    Wilson, J., 13 Medi 2024, (E-gyhoeddi cyn argraffu) Yn: Journal for the Psychoanalysis of Culture and Society.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  45. E-gyhoeddi cyn argraffu

    Estimating common whelk (Buccinum undatum) abundance using baited remote underwater video (BRUV)

    Garratt, M., Bloor, I., Coleman, M., Colvin, C., Hiddink, J. G., Hold, N., Phillips, E., Ward, S. & Jenkins, S., 11 Medi 2024, (E-gyhoeddi cyn argraffu) Yn: ICES Journal of Marine Science.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  46. E-gyhoeddi cyn argraffu

    Path-based Design Model for Constructing and Exploring Alternative Visualisations

    Jackson, J., Ritsos, P. D., Butcher, P. & Roberts, J. C., 10 Medi 2024, (E-gyhoeddi cyn argraffu) Yn: IEEE Transactions on visualization and computer graphics. 11 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  47. Cyhoeddwyd

    VR for fieldwork enhancement: EDI and beyond

    Jones, R. & Dallison, R., 10 Medi 2024.

    Allbwn ymchwil: Cyfraniad at gynhadleddPapuradolygiad gan gymheiriaid

  48. E-gyhoeddi cyn argraffu

    Attention-Aware Visualization: Tracking and Responding to User Perception Over Time

    Srinivasan, A., Ellemose, J., Butcher, P., Ritsos, P. D. & Elmqvist, N., 9 Medi 2024, (E-gyhoeddi cyn argraffu) Yn: IEEE Transactions on visualization and computer graphics. t. 1-11

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  49. E-gyhoeddi cyn argraffu

    No evidence of increased forest loss from a mining rush in Madagascar’s eastern rainforests

    Devenish, K., Willcock, S., Goodenough, K., Heriniaina, R., Rakotonarivo, S. & Jones, J. P. G., 6 Medi 2024, (E-gyhoeddi cyn argraffu) Yn: Communications Earth and Environment. 5, 46 t., 489.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  50. E-gyhoeddi cyn argraffu

    Generalized Equalization Enhanced Phase Noise in Coherent Optical Transceivers Using Arbitrary Raised Cosine Filters

    Liu, Y., Yi, X., Zhang, J., Lu, G.-W. & Li, F., 5 Medi 2024, (E-gyhoeddi cyn argraffu) Yn: Journal of Lightwave Technology. t. 1-7

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  51. Cyhoeddwyd

    SuperNANO: Enabling Nanoscale Laser Anti-Counterfeiting Marking and Precision Cutting with Super-Resolution Imaging

    Chen, Y., Yan, B., Yue, L., Baxter, C. & Wang, Z., 5 Medi 2024, Yn: Photonics. 11, 846.

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid