J. R. Jones yn ymateb i argyfyngau dynol y ceir sôn amdanynt yn y Beibl. Cyhoeddwyd hefyd fel rhan o gyfrol Ac Onide

The relaxation spectrum of a viscoelastic material holds the key to describing its relaxation mechanisms at a molecular level. It also plays a fundamental role in accessing the molecular weight distribution, and in modelling the dynamics of complex uids. The relaxation spectrum cannot be measured directly, but it may be locally determined from experimental measurements of viscoelastic response at a macroscopic level. In particular, the relaxation spectrum is a continuous distribution of relaxation times which may be recovered, at least locally, from measurements of the complex modulus of the material. Although mathematical expressions for the continuous spectrum have been known for over a century, these were inaccessible to numerical implementation for decades, since they involve inverse operators which are not continuous, resulting in severe instability. Progress was made when regularization methods for approximating discrete line spectra were introduced some two decades ago. It was not until 2012, however, that Davies and Goulding proposed a method of wavelet regularization for recovering continuous spectra in a mathematically rigorous framework. This work was further rened in 2016 by introducing a mathematical form of high-order derivative spectroscopy involving sequences of derivatives of dynamic moduli, termed Maclaurin sequences. In this article, a rigorous justication for the use of Maclaurin sequences is presented. Furthermore, a new sequence is presented, which is termed a wavelet correction sequence, achieving the same accuracy as Maclaurin sequences, but with a reduced order of differentiation.

Cynhaliwyd cynhadledd ymchwil cyfrwng Cymraeg gyntaf yr Ysgol Seicoleg ym Mangor ar 4 Tachwedd 2013. Dr Carl Hughes oedd y prif areithiwr, yn areithio ar Newid Ymddygiad. Gellir lawrlwytho copiau o'r cyflwyniadau Pwerbwynt o dan bob cyflwyniad fideo.Traddodwyd ar ystod eang o bynciau amrywiol: Amy Hulson Jones: 'Gwella sgiliau darllen sylfaenol' Awel Vaughan Evans: 'Trosglwyddiad gramadegol rhwng y Gymraeg a'r Saesneg' Catherine Sharp: 'Y Food Dudes. Y Rhaglen Blynyddoedd Cynnar. Astudiaeth Gwerthuso wedi ei Rheoli' Ceri Ellis: 'Allwn ni gynnal cred mewn un iaith, ond nid y llall? Astudiaeth o gredoau diwylliannol ac emosiynol mewn pobl ddwyieithog Cymraeg-Saesneg' Denise Foran: 'Canlyniadau plant a dderbyniodd ymyriad ABA dwysder isel mewn ysgol anghenion arbennig' Dr Carl Hughes: 'Newid Ymddygiad: Be di'r Broblem?' Dr Leah Jones: 'Ymwybyddiaeth Ofalgar er lles rhieni plant ag anableddau deallusol a datblygiadol: datblygu mesurau cyfrwng Cymraeg ar gyfer ymchwil iechyd meddwl' Dr Nia Griffith: 'Ymchwilio'r Blynyddoedd Cynnar yng Nghymru' Ela Cernyw: 'Lles seicolegol rhieni sy'n siarad Cymraeg a gyda phlentyn ag anabledd dysgu' Emma Hughes: 'Gyffredinoli trawsieithyddol o effaith therapi mewn anomia dwyieithog Cymraeg-Saesneg' Yvonne Moseley: 'Datblygu rhaglen ddarllen Cymraeg yn seiliedig ar wybodaeth, tystiolaeth ac ymchwil'

An illustration of the life of Karl Marx: his ideas, the roots of his philosophy and his influence on the world. 

Government statistics illustrate that by 2050 there will be a shortage of meat and milk due to globalpopulationgrowth and the increaseddemand from the Far East. Ensuring food security in terms of availability and nutritionalsafety is, therefore, important for our future existence. Central to achieving milk and meat security are ruminants. Ruminants have a four chambered stomach composed of the reticulum, rumen, abomasum and omasum with microbial fermentation of forage occurring in the rumen. Rumen microbial fermentation is largely responsible for animal production, ruminant product quality and much of greenhouse gas emissions. Indeed, when forage reaches the rumen, the rumen microbes degrade the plant cell wall and subsequently metabolise plant cell content, including plant amino acids and proteins which they convert into proteins that they can utilise. In order to ensure availability of milk and meat of the best possible quality (with the least greenhouse gas emissions) for the future, we must increase our understanding of the plant-microbe interactome using the principles of systems biology and 'omic' technology.

This article examines the way Michael Roes redefines friendship in his novel Geschichte der Freundschaft (The History of Friendship) by usig texts by other writers and philosophers. After placing Roes’ novel in its historical and cultural context, the article compares Geschichte der Freundschaft with Tahar Ben Jelloun's novel Partir / Leaving Tangier (2006). The final section of the article then interprets Roes’ use of intertexts on the subject of male-male friendships. The focus is on Roes’ appropriation of texts by Friedrich Nietzsche and Michel Foucault, which throws light on his treatment of the novel’s central theme, friendships between men, and homosexual relationships.

The Edward Lhuyd Lecture is an annual presentation on various aspects of academic and contemporary life in Wales and the world. The presentations cover a wide variety of themes including geology, literature, ecology or history. The lecture is organized between the Coleg Cymaeg and the Learned Society of Wales. Note, there were no lectures in 2020 - 2022 due to Covid-19.

Drawing on a rich seam of archival material on Welsh missionary activity in late nineteenth- and early twentieth-century Bengal, the article addresses ways in which care of the sick became a central, if problematic, part of Christian Mission. While the building of dispensaries, clinics and hospitals provided both a platform and a social visibility to the evangelisation process, they also exposed deeper tensions around the politics of gender and the implantation of Western medical practices in a colonised society.

This article contains an analysis of the pop charts of three Welsh newspapers during the year 1972, concentrating on regional and national trends, and also on the performance of rock records in the charts. It is argued that Welsh language pop charts are of use as indicators of likely sales, but also because of their role as a medium for the record-buying public to participate in the Welsh pop world.

Devolution has led to significant divergences between the law of Wales and the law of England. Furthermore, the question of whether a separate Welsh jurisdiction is needed is increasingly being given serious consideration. With this in mind, this article examines the issue of legal education in Wales, and considers what developments are needed in order to meet the challenges and opportunities resulting from devolution, as well as any additional developments that would be needed if a Welsh jurisdiction were to be established in the future. In so doing, the article sets out some key findings from an empirical research project carried out in Northern Ireland, which as a small jurisdiction with a devolved government within the United Kingdom, provides an instructive point of reference.

Mae afiechydon yn medru creu pwysau detholus cryf ar amryw o rywogaethau, gan gynnwys anifeiliaid gwyllt a domestig. Yn y cyflwyniad hwn i faes ecoleg afiechydon, mae Dr Gethin Thomas o Brifysgol Abertawe yn canolbwyntio ar y berthynas rhwng moch daear, gwartheg a'r diciau i esbonio sut mae'r rhyngweithiad rhwng anifeiliaid a'u pathogenau yn faes diddorol a cyfoes.

Cyfweliadau gyda chyfarwyddwyr theatr blaenllaw a ffilmiwyd yn ystod Penwythnos Cyfarwyddo Theatr 2013 a 2014. Dyma brosiect cydweithredol a drefnir gan Brifysgol De Cymru.