Let X be an irreducible smooth projective curve of genus g ≥ 3 defined over the complex numbers and let Mξ denote the moduli space of stable vector bundles on X of rank n and determinant ξ, where ξ is a fixed line bundle of degree d. If n and d have a common divisor, there is no universal vector bundle on X ×Mξ. We prove that there is a projective bundle on X ×Mξ with the property that its rest...

The posterior cruciate ligament (PCL) is known to be the main posterior stabilizer of the knee. Anatomic single-bundle PCL reconstruction, focusing on reconstruction of the larger anterolateral bundle, is the most commonly performed procedure. Because of the residual posterior and rotational tibial instability after the single-bundle procedure and the inability to restore the normal knee kinema...

Hyperholomorphic bundles over a hyperkähler manifold. 0. Intruduction. The main object of this paper is the notion of a hyperholomorphic bundle (Definition 2.4) over a hyperkähler manifold M (Definition 1.1). The hyperholomorphic bundle is a direct sum of holomorphic stable holomor-phic bundles. The first Chern class of a hyperholomorphic bundle is of zero degree. Roughly speaking, the hyperhol...

ELECTROCARDIOGRAPHY is a subject now sufficiently old that it should contain more science than art, partiQularly in view of the sophisticated methods currently available to study the electrical activity of the heart. That many quaint terms have persisted in electrocardiographic nomenclature may be more attributable to their charming lilt than their scientific accuracy. We have long suspected th...

Electrophysiologic studies using the His bundle electrogram (HBE) and histologic studies of serial sections of the conduction system were correlated in two groups of deceased patients. Group 1 consisted of five patients with chronic complete atrioventricular block (CAVB) who had narrow QRS complexes and AH block (block proximal to the His bundle deflection). Group 2 consisted of four patients w...

gram. Tachyeardias originating in the left bundle branch and documented by right, left, and His bundle recordings have been produced in animals given excessive digitalis. We have noted a similar tachycardia in a patient with ischemic heart disease receiving digitalis during hypokalemia. The QRS complexes were 0.10 sec in duration and by contour suggested an ectopic focus located in the posterio...

Lewis (1925) stated that delay in the passage of the impulse down a bundle branch could alter materially the form of the electrocardiogram. Wilson (1940) defined incomplete bundle branch block as due to a conduction defect that merely retards the passage of the impulse through one of the main bundle branches, and stated that it gives rise to electrocardiograms which are " transitional, both as ...

Leaves of plants possessing the C4-dicarboxylic acid CO2fixation pathway (14) are characterized by outer mesophyll cells containing granal chloroplasts and inner bundle sheath cells which contain chloroplasts with varying degrees of grana development depending on the species. As judged by Hill activities and fluorescence yield, bundle sheath chloroplasts which contain few grana have less photos...

Introduction In 2010 a care bundle was introduced by the Department of Health (DH) to reduce surgical site infections (SSIs) in England. To date, use of the care bundle has not been evaluated despite incorporating interventions with resource implications. The aim of this study was to evaluate the DH SSI care bundle in open colorectal surgery. Methods A prospective cohort design was used at two ...

1. M. Hirsch [3] has shown that the immersion problem for manifolds is just a cross section problem for the stable normal bundle. Our object here is to find conditions under which sections of the tangent bundle will imply sections in the normal bundle (and conversely). First we need some notation. Given an integer /, let j(t) be the maximum integer such that the 2*-f old Whitney sum of the Hopf...