Blocking without obstruction

Pressure Gradients without Obstruction

OBSTRUCTION to left ventricular outflow has been considered a characteristic and functionally important feature of "hypertrophic subaortic stenosis." The presence of obstruction has been inferred from the finding of a pressure gradient within the left ventricle during catheterization of the left heart in certain patients with idiopathic left ventricular hypertrophy. Indeed, the disease was not ...

tracheal intubation without the use of neuromuscular blocking agents

Tracheal intubation without neuromuscular blocking agents

The LOT: transform coding without blocking effects

The Lapped Orthogonal Transform (LOT) is a new tool for block transform coding with basis functions that overlap adjacent blocks [1]-[3]. The LOT can reduce the blocking effect to very low levels. In this paper, an exact derivation of an optimal LOT is presented. The optimal LOT is related to the discrete cosine transform (DCT) in such a way that a fast algorithm for a nearly optimal LOT is der...

G-designs without blocking sets, Note

For an undirected graph G and a natural number n, a G-design of order n is an edge partition of the complete graph Kn with n vertices into subgraphs G1, G2, . . . , each isomorphic to G. A set T ⊂ V (Kn) is called a blocking set if it meets the vertex set V (Gi) of each Gi in the decomposition, but contains none of them. In a previous paper [J. Combin. Designs 4 (1996), 135–142] the first and t...