Connecting the Kuramoto Model and the Chimera State

Since its discovery in 2002, the chimera state has frequently been described as a counter-intuitive, puzzling phenomenon. The Kuramoto model, in contrast, has become a celebrated paradigm useful for understanding a range of phenomena related to phase transitions, synchronization and network effects. Here we show that the chimera state can be understood as emerging naturally through a symmetry breaking bifurcation from the Kuramoto model's partially synchronized state. Our analysis sheds light on recent observations of chimera states in laser arrays, chemical oscillators, and mechanical pendula.Comment: 5 pages, 6 figure

Calendar 2009

BACKGROUND: Given the increase in skin cancer (SC) it seems inevitable that general practitioners (GPs) will play a larger role in SC care in the near future. OBJECTIVES: To obtain insights into the opinion of GPs with respect to their role in SC care, and their SC knowledge and skills. METHODS: A self-administered questionnaire was sent to GPs in the region of Nijmegen, the Netherlands. RESULTS: In total 268 GPs (49%) responded. An overwhelming majority were willing to extend their role in SC care. Furthermore, we noted the following results: (i) > 50% of GPs requested additional SC knowledge; (ii) GPs often treat actinic keratosis (AK) themselves, primarily with cryotherapy; (iii) > 50% would treat (low-risk) basal cell carcinoma (BCC) after additional training; (iv) only a few GPs are familiar with BCC guidelines; (v) the majority of patients with high-risk SC are referred to dermatologists; (vi) only a few GPs perform total body inspection and palpation of lymph nodes; and (vii) a large number of GPs inform their patients on risk factors in SC development. CONCLUSIONS: Most GPs are willing to extend their role in SC care; however, more training is requested and the usage of guidelines should be encouraged. Those willing to extend their role should focus on improving their clinical diagnosis of skin tumours, treatment of low-risk skin (pre)malignancies, including field-directed treatment of AK and noninvasive treatment of BCC, and on prevention

Participant music listening behaviours in interactive multimedia music instruction

While emerging technologies such as interactive multimedia are increasingly being employed in computerised music instruction, understanding of participant music listening behaviours in interactive multimedia music instruction is currently very limited. With the aim of elucidating music listening behaviour, the central concern of this work is to identify and explain participant interactions with the audio components of interactive multimedia music instruction. The investigation employs a novel documentation procedure, which extends the application of digital audio recording technology, to provide a finely calibrated analysis of the audio activity of a sample of 20 undergraduate music education majors during individual sessions with two commercially-available interactive multimedia music instruction programs. Graphically-based Sound Activity Profiles, which the researcher developed specifically for the current investigation, characterise and summarise participant interactions with audio components, while an analysis of questionnaire responses and follow-up interview transcripts provides supplementary information that further explains participants' music listening behaviours. The results of the investigation show that music listening behaviours during the study sessions were highly variable. While extensive participant interaction with music examples occasionally reflected attentive music listening behaviours, many study sessions were characterised by brief, fragmentary music excerpts and lengthy periods of silence. Participants spent as little as five percent of their session time listening to music and as much as 88 percent of the session time in silence. A substantial number of the study cohort frequently interrupted the music examples they had activated. Participants' perceptions of the extent of their interaction with music examples were frequently inaccurate, as subjects often substantially overestimated the amount of session time they had spent listening to music. The study findings suggest that many interactive multimedia music instruction participants would benefit from interventions that elicit more extensive and prolonged interaction with music examples. Accordingly, recommendations include a call for research to develop and test software designs that incorporate automated monitoring of session audio activity so that dynamic on-screen information about music listening behaviour can be provided to interactive multimedia music instruction participants. Such information may encourage participants to modify inappropriate music listening behaviours

Quantitative multivariate analysis of bilinear data in the presence of spectral interferents

Contains fulltext : mmubn000001_148005918.pdf (publisher's version ) (Open Access)Promotores : G. Kateman en B. Vandeginste157 p

Fluorescentiediagnostiek in de dermatologie.

Item does not contain fulltex

Een hardnekkig handeczeem?

Contains fulltext : 25713___.PDF (publisher's version ) (Open Access

Transglutaminase-positive cells in psoriatic epidermis during treatment with calcitriol (1alpha,25 dihydroxy vitamin D3) and tacalcitol (1alpha,24 dihydroxy vitamin D3)

Contains fulltext : 21393___.PDF (publisher's version ) (Open Access

Remissie van psoriasis pustulosis palmoplantaris na cholecystectomie.

Item does not contain fulltex