Group divisible designs with block size 4 and group sizes 4 and 7

In this paper, we consider the existence of group divisible designs (GDDs) with block size $4$ and group sizes $4$ and $7$. We show that there exists a 4-GDD of type $4^t 7^s$ for all but a finite specified set of feasible values for $(t, s)$.Comment: arXiv admin note: substantial text overlap with arXiv:2109.1122

GBRDs over groups of orders ≤100 or of order pq with p, q primes

AbstractThere are well-known necessary conditions for the existence of a generalized Bhaskar Rao design over a group G, with block size k=3. It has been conjectured that these necessary conditions are indeed sufficient. We prove that they are sufficient for groups G of order pq where p,q are primes and for groups of all orders ≤100 except possibly 32, 36, 48, 54, 60, 64, 72, 96

2016 update of the EULAR recommendations for the management of early arthritis

Objectives: Since the 2007 recommendations for the management of early arthritis have been presented, considerable research has been published in the field of early arthritis, mandating an update of the 2007 EULAR recommendations for management of early arthritis. Methods: In accordance with the 2014 EULAR Standardised Operating Procedures, the expert committee pursued an approach that was based on evidence in the literature and on expert opinion. The committee involved 20 rheumatologists, 2 patients and 1 health professional representing 12 European countries. The group defined the focus of the expert committee and target population, formulated a definition of “management” and selected the research questions. A systematic literature research (SLR) was performed by 2 fellows with the help of a skilled librarian. A set of draft recommendations was proposed on the basis of the research questions and the results of the SLR. For each recommendation the categories of evidence were identified, the strength of recommendations was derived and the level of agreement was determined through a voting process. Results: The updated recommendations comprise 3 overarching principles and 12 recommendations for managing early arthritis. The selected statements involve the recognition of arthritis, referral, diagnosis, prognostication, treatment (information, education, pharmacological and non-pharmacological interventions), monitoring and strategy. Eighteen items were identified as relevant for future research. Conclusion: These recommendations provide rheumatologists, general practitioners, health professionals, patients and other stakeholders with an updated EULAR consensus on the entire management of early arthritis

The radio serial industry in Australia: an historical study of the production of serials in Australia, and the influence of the industry in the development of commercial radio

Typescript.Thesis (Ph. D.) -- Macquarie University, 1992.Bibliography: leaves 380-389.Serials were an important element of commercial programming from the 1930s to the 1960s because they performed particular functions for stations and advertisers. Drama was expensive, however, so broadcasters had to organise cooperative production of recorded serials for distribution by networking, a process which continually challenged the Government regulations designed to prevent just that. The success of the broadcasters in popularising broadcast advertising provoked newspapers to involve themselves in broadcasting and stations to seek a reciprocal advantage through association with newspapers. The Government’s response was to restrict the formation of chains of ownership and/or control, but to permit the operation of cooperative networks which made country stations economic inclusions in sponsorship contracts. The demand for serials encouraged the formation of many independent production companies, but competition from cheap American transcriptions depressed their sales and prices. Moreover, the small size of the local market meant that many found it necessary to sell overseas to make a profit, so serials which had already been shaped to appeal to the mass audience in Australia, had to be further modified - 'internationalised' - to make them accessible to foreign mass audiences. This loss of Australian-ness, plus the circulation of American serials, led to a still-unresolved discussion about the nature of Australian 'culture', whether it should be protected, and if so, how best to do it. During the 1940s and 1950s, the radio serial industry was able to support a great many artists and technicians. The economics of the industry, however, were such that its viability depended on their accepting low fees and onerous working conditions. After 1956, wherever a television station began broadcasting, audiences lost interest in radio drama, and so too did advertisers. Sales of new serials began to fall off, and by 1960 the serial production industry was dead, and most of the artists unemployed.Mode of access: World wide web1 online resource ( 389 leaves