Jacqueline Higgins

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Analytic expressions for the internal partition function and helix content in the limit of infinite molecular weight, fhd-9 are derived for homopolymeric, a-helical, two-chain, coiled coils (dimers) in which the effects of loop entropy and mismatch are neglected, Le., the neglect-loop-entropy model. We examine the behavior off$ as a function of the(More)
We report a detailed magnetic and structural analysis of highly reduced Co doped rutile TiO(2-delta) films displaying an anomalous Hall effect (AHE). The temperature and field dependence of magnetization, and transmission electron microscopy, clearly establish the presence of nanosized superparamagnetic cobalt clusters of approximately 8-10 nm size in the(More)
The occurrence of room temperature ferromagnetism is demonstrated in pulsed laser deposited thin films of Sn(1-x)Co(x)O(2-delta) (x<0.3). Interestingly, films of Sn(0.95)Co(0.05)O(2-delta) grown on R-plane sapphire not only exhibit ferromagnetism with a Curie temperature close to 650 K, but also a giant magnetic moment of 7.5+/-0.5 micro(B)/Co, not yet(More)
Coordination in healthcare settings is a complex distributed process, mediated by a number of artifacts. We describe the coordination mechanisms in a surgical unit and identify the critical themes and structures of coordination that reveal the coordination needs of clinicians. Interestingly, we find that intra-team coordination works well despite the fact(More)
The first three decades of my research career closely map the development of neutron scattering techniques for the study of molecular behavior. At the same time, the theoretical understanding of organization and motion of polymer molecules, especially in the bulk state, was developing rapidly and providing many predictions crying out for experimental(More)
A specialised clinic for the antenatal care of high-risk patients was established in Cork in January 2004. It is led by 2 specialists in materno-fetal medicine and provides care for patients from a large catchment area. Small clinic numbers, specialised midwives, ready access to medical experts and fetal assessment facilities, facilitate an efficient use of(More)
We present the designs of probes for making critical current density (Jc) measurements on anisotropic high-temperature superconducting tapes as a function of field, field orientation, temperature and strain in our 40 mm bore, split-pair 15 T horizontal magnet. Emphasis is placed on the design of three components: the vapour-cooled current leads, the(More)
It has been suggested that, due to topological constraints, rings in the melt may assume a more compact shape than Gaussian chains. In this paper, we exploit the availability of narrow fractions of perdeuterated linear and cyclic polydimethylsiloxane (PDMS) and, through the analysis of the small angle neutron scattering (SANS) profiles, demonstrate the(More)
This paper reports a study that examines process breakdowns in the operations of a hospital’s surgical unit. We find a correlation between the stage in the surgical process in which a breakdown is detected and the breakdown impact. We derive a model of the relationship between breakdown detection, impact, and safety within the surgical domain. We discuss(More)