The category of finite cardinals (or, equivalently, of finite sets) is the symmetric analogue of the category of finite ordinals, and the ground category of a relevant category of presheaves, the augmented symmetric simplicial sets. We prove here that this ground category has characterisations similar to the classical ones for the category of finite ordinals, by the existence of a universal sym...

An algebraic classification of second order symmetric tensors in 5-dimensional Kaluza-Klein-type Lorentzian spaces is presented by using Jordan matrices. We show that the possible Segre types are [1, 1111], [2111], [311], [z z̄ 111], and the degeneracies thereof. A set of canonical forms for each Segre type is found. The possible continuous groups of symmetry for each canonical form are also stu...

OBJECTIVE The purpose of this study was to evaluate if the measurement of peri-operative parathyroid hormone (PTH) is able to identify patients with increased risk of developing symptoms of hypocalcemia. SUBJECTS AND METHODS Forty patients who underwent total thyroidectomy were studied prospectively. Ionized serum calcium and PTH were measured after induction of anesthesia, one hour (PTH1) an...

This article presents an empirical examination of the usefulness of Bowen family systems theory as a framework for understanding fibromyalgia syndrome. This cross-sectional Internet-based survey included 201 participants diagnosed with fibromyalgia syndrome. Results indicated that more severe symptoms of fibromyalgia syndrome are significantly correlated with higher levels of perceived stress, ...

The body of work on multi-body factorization separates between objects whose motions are independent. In this work we show that in many cases objects moving with different 3D motions will be captured as a single object using these approaches. We analyze what causes these degeneracies between objects and suggest an approach for overcoming some of them. We further show that in the case of multipl...

The presence of degeneracies can considerably worsen the measure of the neutrino oscillation parameters θ13 and δ. We study the physics reach of a specific “CERN” setup, using a standard β-Beam and Super-Beam facility. These facilities have a similar sensitivity in both parameters. Their combination does not provide any dramatic improvement as expected due to their almost identical L/E ratio. W...

The Voyager 2 cosmic ray experiment 0•erved the signature of a magnetic utoff of cosmic ray ia• immediately after the closest approach. to Neptune. The cutoff signature shows that the simultaneous ,.•ation of a trapped particle dropout could not have •urred at high magnetic latitudes, but is likely to be a •ft shadow of the planet caused by the large offset of' the ..•c!e drift shells. The OTD2...

A decade ago, small observational studies using light transmittance aggregometry suggested that post-stenting ischemic event occurrences were not linearly related to ontreatment platelet reactivity (OPR) levels but instead largely occurred above a moderate threshold level (1,2). For example, in the CREST (Carotid Revascularization Endarterectomy Versus Stenting Trial) study of 20 patients with ...

UNLABELLED Attenuation, photon scatter, and distance-dependent collimator-detector response are major degrading factors in myocardial SPECT images. The current study investigated whether compensation for these factors improves perfusion defect detectability, and compared the results for human observers with a previous study using a mathematical observer. METHODS Four methods were investigated...