University of Warwick

About: University of Warwick is a education organization based out in Coventry, Warwickshire, United Kingdom. It is known for research contribution in the topics: Population & Context (language use). The organization has 26212 authors who have published 77127 publications receiving 2666552 citations. The organization is also known as: Warwick University & The University of Warwick.

The McKay correspondence as an equivalence of derived categories

Abstract: The classical McKay correspondence relates representations of a finite subgroup G ⊂ SL(2,C) to the cohomology of the well-known minimal resolution of the Kleinian singularity C2/G. Gonzalez-Sprinberg and Verdier [10] interpreted the McKay correspondence as an isomorphism on K theory, observing that the representation ring of G is equal to the G-equivariant K theory of C2. More precisely, they identify a basis of the K theory of the resolution consisting of the classes of certain tautological sheaves associated to the irreducible representations of G.

Maternal and fetal risk factors for stillbirth: population based study

Abstract: Objective To assess the main risk factors associated with stillbirth in a multiethnic English maternity population. Design Cohort study. Setting National Health Service region in England. Population 92 218 normally formed singletons including 389 stillbirths from 24 weeks of gestation, delivered during 2009-11. Main outcome measure Risk of stillbirth. Results Multivariable analysis identified a significant risk of stillbirth for parity (para 0 and para ≥3), ethnicity (African, African-Caribbean, Indian, and Pakistani), maternal obesity (body mass index ≥30), smoking, pre-existing diabetes, and history of mental health problems, antepartum haemorrhage, and fetal growth restriction (birth weight below 10th customised birthweight centile). As potentially modifiable risk factors, maternal obesity, smoking in pregnancy, and fetal growth restriction together accounted for 56.1% of the stillbirths. Presence of fetal growth restriction constituted the highest risk, and this applied to pregnancies where mothers did not smoke (adjusted relative risk 7.8, 95% confidence interval 6.6 to 10.9), did smoke (5.7, 3.6 to 10.9), and were exposed to passive smoke only (10.0, 6.6 to 15.8). Fetal growth restriction also had the largest population attributable risk for stillbirth and was fivefold greater if it was not detected antenatally than when it was (32.0% v 6.2%). In total, 195 of the 389 stillbirths in this cohort had fetal growth restriction, but in 160 (82%) it had not been detected antenatally. Antenatal recognition of fetal growth restriction resulted in delivery 10 days earlier than when it was not detected: median 270 (interquartile range 261-279) days v 280 (interquartile range 273-287) days. The overall stillbirth rate (per 1000 births) was 4.2, but only 2.4 in pregnancies without fetal growth restriction, increasing to 9.7 with antenatally detected fetal growth restriction and 19.8 when it was not detected. Conclusion Most normally formed singleton stillbirths are potentially avoidable. The single largest risk factor is unrecognised fetal growth restriction, and preventive strategies need to focus on improving antenatal detection.

Chronic illness as biographical disruption or biographical disruption as chronic illness? Reflections on a core concept

Abstract: Taking as its point of departure Bury’s (1982) concept of chronic illness as biographical disruption, this paper provides a critical assessment of its fortunes since that time. Having ‘rescued’ the concept from recent postmodern and disability critiques, the paper provides a series of further reflections on its strengths and weaknesses, including the notion of ‘normal illness’; the importance of timing and context; the significance of continuity as well as loss; and the role of biographical disruption itself in the aetiology of illness. This, in turn, provides the basis for a broader set of reflections on the vicissitudes of the biographically embodied self in conditions of late modernity: a situation of chronic reflexivity in which our bodies/selves are continually problematised if not pathologised. The paper concludes, given this ‘balance sheet’, with a discussion of some potentially fruitful lines of future research, including links with the life-events and inequalities literature.

A Temporal Ratio Model of Memory

Abstract: A model of memory retrieval is described. The model embodies 4 main claims: (a) temporal memory-traces of items are represented in memory partly in terms of their temporal distance from the present; (b) scale-similarity-similar mechanisms govern retrieval from memory over many different timescales; (c) local distinctiveness-performance, on a range of memory tasks is determined by interference from near psychological neighbors; and (d) interference-based forgetting-all memory loss is due to interference and not trace decay. The model is applied to data on free recall and serial recall. The account emphasizes qualitative similarity in the retrieval principles involved in memory performance at all timescales, contrary to models that emphasize distinctions between short-term and long-term memory.