Words without Near-Repetitions

We find an infinite word w on four symbols with the following property: Two occurrences of any block in w must be separated by more than the length of the block. That is, in any subword of w of the form xyx, the length of y is greater than the length of x. This answers a question of C. Edmunds connected to the Burnside problem for groups.The research of the first author was supported by an NSERC Operating Grant. The second author was supported by an NSERC Undergraduate Summer Research Award.https://www.cambridge.org/core/journals/canadian-mathematical-bulletin/article/words-without-nearrepetitions/F86509D865F222F1FC63ACA8545C069

The structure and function of the verbal piece in the Jebero language.

After the preface, table of contents and list of symbols, an introductory chapter gives details about the Jebero people and language, including an account of all previously published material, describes the circumstances and scope of this present study and summarizes some of the general characteristics of the language. The second chapter containing on explanation of the transcription used in the thesis is followed by an outline description of the phonology. The remainder of the thesis is a grammatical study of the verbal piece considered at different stages of grammatical analysis from the sentence to the morpheme. The function of the verbal piece is first given and this entails a description of the sentence-types found in the material examined since the function of the verbal piece is stated in terms of these sentence-types. The structure of the verbal piece is then taken up and this is set out in terms of the smaller elements of which the verbal piece may be said to be composed, namely the clause, phrase, and word, each of which is dealt with in turn. The Validity of the word as a grammatical element is shown and the basis for the establishment of word classes is described. A full description of each word class follows, giving details concerning stems, roots, and affixes of various classes and subclasses, In this way all the morphemes, words, and larger units which can enter into a verbal piece are classified as members of one or other system of grammatical elements. Some texts with translations are provided and for the first of these a full grammatical analysis is given. The thesis ends with two appendioes and a bibliography

Hierarchical structures in Guajajara.

This thesis presents an analysis of the phonology and the grammar of the Guajajara language, each in turn being described within a hierarchical framework. Following a general introduction to the Guajajara people and language, (Chapter One), and an account of the transcription employed, (Chapter Two), a theoretical introduction to the analytical framework of the study and a summary of the hierarchies, are found in Chapter Three. Chapters Four to Seven describe the phonological hierarchy, starting with the largest unit, the Span, (Chapter Four) and working down through successively smaller units, the Foot (Chapter Five) and the Syllable (Chapter Six) to the smallest ones, Consonants and Vowels. Chapters Eight to Fourteen describe the grammatical hierarchy. The Sentence, and specially the favourite sentence, is dealt with in Chapter Eight, verbal and Nominal Units in Chapters Nine and Ten respectively, other units of phrase rank in Chapter Eleven, and Particles in Chapter Twelve. Chapter Thirteen describes non-favourite sentences, and Chapter Fourteen, constructions larger than the sentence. Theoretical conclusions are drawn in Chapter Fifteen, and a parsed text presented in Chapter Sixteen. The thesis ends with a bibliography, both of general linguistic works, and of works relating to the Guajajara people and language, and with an index and a key to the abbreviations used

Preventing type 1 diabetes in childhood

Type 1 diabetes (T1D) is an autoimmune disease in which the insulin-producing β cells of the pancreas are destroyed by T lymphocytes. Recent studies have demonstrated that monitoring for pancreatic islet autoantibodies, combined with genetic risk assessment, can identify most children who will develop T1D when they still have sufficient β cell function to control glucose concentrations without the need for insulin. In addition, there has been recent success in secondary prevention using immunotherapy to delay the progression of preclinical disease, and primary prevention approaches to inhibiting the initiating autoimmune process have entered large-scale clinical trials. By changing the focus of T1D management from late diagnosis and insulin replacement to early diagnosis and β cell preservation, we can anticipate a future without the need for daily insulin injections for children with T1D

Towards a Responsible Innovation Agenda for HCI

In recent years responsible innovation has gained significant traction and can be seen to adorn a myriad of research platforms, education programs, and policy frameworks. In this workshop, we invite HCI researchers to discuss the relations between the CHI community and responsible innovation. This workshop looks to build provocations and principles for and with HCI researchers who are or wish to become responsible innovators. The workshop looks to do this by asking attendees to think about the social, environmental, and economic impacts of ICT and HCI and explore how research innovation frameworks speak to responsible HCI innovation. Through the workshop we look to examine 5 questions to develop a set of provocations and principles, which will help encourage HCI and computer science researchers, educators, and innovators to reflect on the impact of their research and innovatio

Language endangerment and language documentation in Africa

Non peer reviewe