Labrador keratopathy (LK) is an acquired corneal degeneration thought to be caused by chronic exposure to solar irradiation. Reports so far suggest that it is a progressive or at least a stationary condition. There are no detailed reports on recommended therapy. A prospective clinical study was conducted to show regression of LK following extracapsular cataract extraction. Seventeen black patie...

We develop various aspects of the finite model theory of Lk(there exists) and Lk∞omega(there exists). We establish the optimality of normal forms for Lk∞omega(there exists) over the class of finite structures and demonstrate separations over the class of finite structures and demonstrate separations among descriptive complexity classes within Lk∞omega(there exists). We establish negative result...

Four subfamilies of voltage-gated K"*" channels {Shaker, Shal, Shab and Shaw) have been defined that are present in many species to regulate neuronal excitability. The well characterized simple leech nervous system is ideal to study the roles K+ channels have in regulating neuronal circuits. As a starting point for studies to examine the role of K+ channels in well defined leech circuitry, we r...

In various types of cells mechanical stimulation of the plasma membrane activates phospholipase C (PLC). However, the regulation of ion channels via mechanosensitive degradation of phosphatidylinositol 4,5-bisphosphate (PIP(2)) is not known yet. The mouse B cells express large conductance background K(+) channels (LK(bg)) that are inhibited by PIP(2). In inside-out patch clamp studies, the appl...

For a weighted graph E, we construct representation graphs F, and consequently, LK(E)-modules VF, where LK(E) is the Leavitt path algebra associated to with coefficients in field K. We characterise F such that VF are simple LK(E)-modules. show category of RG(E), disjoint union subcategories, each which contains unique universal object T gives an indecomposable LK(E)-module VT irreducible S, VS....

A k×n Latin rectangle L is a k×n array, with symbols from a set of cardinality n, such that each row and each column contains only distinct symbols. If k = n then L is a Latin square. Let Lk,n be the number of k×n Latin rectangles. We survey (a) the many combinatorial objects equivalent to Latin squares, (b) the known bounds on Lk,n and approximations for Ln, (c) congruences satisfied by Lk,n a...

Given two infinite binary sequences A, B we say that B can compress at least as well as A if the prefix-free Kolmogorov complexity relative to B of any binary string is at most as much as the prefix-free Kolmogorov complexity relative to A, modulo a constant. This relation, introduced in Nies (2005) [14] and denoted by A≤LK B, is a measure of relative compressing power of oracles, in the same w...

Human peripheral blood mononuclear cells activated with concanavalin A (Con A) or lipopolysaccharide (LPS) produce, respectively, lymphokines (LK) of 50,000 Mr or monokines (MK) of 20,000 Mr that inhibit the growth and collagen production of cultured human dermal fibroblasts. Because antigenic typing of the antiviral activity of these LK and MK preparations revealed that LK contained mainly gam...

We previously demonstrated that K depletion inhibited ROMK-like small-conductance K channels (SK) in the cortical collecting duct (CCD) and that the effect was mediated by superoxide anions that stimulated Src family protein tyrosine kinase (PTK) and mitogen-activated protein kinase (MAPK) (51). However, because animals on a K-deficient diet had a severe hypokalemia, superoxide-dependent signal...

Lanthionine ketimine (LK) represents a poorly understood class of thioethers present in mammalian CNS. Previous work has indicated high-affinity interaction of LK with synaptosomal membrane protein(s), but neither LK binding partners nor specific bioactivities have been reported. In this study, LK was chemically synthesized and used as an affinity agent to capture binding partners from mammalia...