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The impetus of religious reform between ca. 1380-1520, which expressed itself in a variety of Observant initiatives in many religious orders all over Europe, and also brought forth the Devotio moderna movement in the late medieval Low Countries, had considerable repercussions for the production of a wide range of religious texts, and the embrace of other forms of cultural production (scribal activities, liturgical innovations, art, music, religious architecture). At the same time, the very impetus of reform within late medieval religious orders and the wish to return to a more modest religious lifestyle in accordance with monastic and mendicant rules, and ultimately with the commands of Christ in the Gospel, made it difficult to wholeheartedly embrace the material consequences of learning, literary and artistic prowess, as the very pursuit of such pursuits ran against basic demands of evangelical poverty and humility. This volume explores how this tension was negotiated in various Observant and Devotio moderna contexts, and how communities connected with these movements instrumentalized various types of writing, learning, and other forms of cultural expression to further the cause of religious reform, defend it against order-internal and external criticism, to shape recognizable reform identities for themselves, and to transform religious life in society as a whole.

Number Fields is a textbook for algebraic number theory. It grew out of lecture notes of master courses taught by the author at Radboud University, the Netherlands, over a period of more than four decades. It is self-contained in the sense that it uses only mathematics of a bachelor level, including some Galois theory.Part I of the book contains topics in basic algebraic number theory as they may be presented in a beginning master course on algebraic number theory. It includes the classification of abelian number fields by groups of Dirichlet characters. Class field theory is treated in Part II: the more advanced theory of abelian extensions of number fields in general. Full proofs of its main theorems are given using a 'classical' approach to class field theory, which is in a sense a natural continuation of the basic theory as presented in Part I. The classification is formulated in terms of generalized Dirichlet characters. This 'ideal-theoretic' version of class field theory dates from the first half of the twentieth century. In this book, it is described in modern mathematical language. Another approach, the 'idèlic version', uses topological algebra and group cohomology and originated halfway the last century. The last two chapters provide the connection to this more advanced idèlic version of class field theory. The book focuses on the abstract theory and contains many examples and exercises. For quadratic number fields algorithms are given for their class groups and, in the real case, for the fundamental unit. New concepts are introduced at the moment it makes a real difference to have them available.

On 20 October 2022, the day that Radboud University celebrated its 99th anniversary, Dr. Katalin Karikó received a Radboud honorary doctorate in recognition of her scientific contributions to developing mRNA-based vaccines. This edition includes the laudatio of the honorary supervisor and the speech of the honorary doctor.Karikó spent years researching medical applications of mRNA. Her dream was to develop synthetic mRNA and use this to cure cancer, strokes, and influenza. Eventually, after years of toil, rejection, and criticism from colleagues, she and fellow researcher Drew Weissman demonstrated that it is possible to trigger an immune response in the body with mRNA without the body turning against the mRNA itself. With this breakthrough, a new revolutionary technique was born.Thanks to Karikó's scientific work, BioNTech/Pfizer and Moderna were able to develop the current mRNA vaccines against COVID-19. A prime example of the beneficial impact that fundamental research can eventually have on society. Honorary supervisor Floris Rutjes, Professor in Organic Synthesis: "With courage and determination, she pursued her scientific vision for a very long time, and by doing so, she has ultimately made a significant contribution to the fight against viral diseases."