The influence of afterload on the rate of force generation by the myocardium was investigated using two types of preparations: the in situ dog heart (dP/dt) and isolated papillary muscle of rats (dT/dt). Thirteen anesthetized, mechanically ventilated and thoracotomized dogs were submitted to pharmacological autonomic blockade (3.0 mg/kg oxprenolol plus 0.5 mg/kg atropine). A reservoir connected...

BACKGROUND The human asialoglycoprotein receptor (ASGPR) is composed of two polypeptides, designated H1 and H2. While variants of H2 have been known for decades, the existence of H1 variants has never been reported. PRINCIPAL FINDINGS We identified two splice variants of ASGPR H1 transcripts, designated H1a and H1b, in human liver tissues and hepatoma cells. Molecular cloning of ASGPR H1 vari...

Given two graphs H1 and H2, a graph is (H1,H2)-free if it contains no induced subgraph isomorphic to or H2. Let Pt be the path on t vertices. A bull obtained from triangle with disjoint pendant edges. In this paper, we show that there are finitely many 5-vertex-critical (P5, bull)-free graphs.

where U : H1 → H1 and T : H2 → H2 are two firmly quasi-nonexpansive operators with nonempty fixed-point sets F(U) = {x ∈ H1 : Ux = x} and F(T ) = {x ∈ H2 : Tx = x}. Note that by taking H2 = H3 and B = I, we recover the split common fixed-point problem originally introduced in Censor and Segal (J. Convex Anal. 16:587-600, 2009). In this paper, we will continue to consider the split common fixed-...

Let H1 and H2 be two subgraphs of a graph G. We say that G is the 2-sum of H1 and H2, denoted by H1 ⊕2 H2, if E(H1)∪E(H2)=E(G), |V (H1)∩ V (H2)| = 2, and |E(H1)∩E(H2)| = 1. A triangle-path in a graph G is a sequence of distinct triangles T1T2 · · ·Tm in G such that for 1 i m − 1, |E(Ti) ∩ E(Ti+1)| = 1 and E(Ti) ∩ E(Tj ) = ∅ if j > i + 1. A connected graph G is triangularly connected if for any ...

Two human faeces carriage isolates of Listeria monocytogenes (H1 and H2) were compared to reference strains (ScottA and LO28) with regard to their lethality in 14-day-old chick embryos, their haemolytic and phospholipase (phosphatidylcholine-phospholipase C and phosphatidylinositol-phospholipase C) activities and their invasiveness towards Caco-2 cells. Experimental infection of chick embryos a...

Three methods of determining the actual size of objects on the living fundus were utilized to measure the horizontal disc diameter (H) in 68 volunteers. H1 was calculated from fundus photographs based on the refractive power of the eye and according to the formula of Bengtsson and Krakau. H2 was derived from Littmann's trigonometric curves based on the anterior corneal curvature and the refract...