Let m,n ≥ 2, m ≤ n. It is well-known that the number of (twodimensional) threshold functions on an m× n rectangular grid is t(m,n) = 6 π (mn) +O(mn logn) +O(mn log logn) = 6 π (mn) +O(mn logm). We improve the error term by showing that t(m,n) = 6 π (mn) +O(mn).

Background: Most of the cytogenetic dosimetry, except Premature Chromosome Condensation assay, saturates at 6 Gy. Present studies are aimed to assess feasibility of simple CB-MN assay for prescreening of high dose accidental exposures. Materials and Methods: Human peripheral blood lymphocytes from two donors were gamma irradiated to different doses ranging from 0-15Gy, cultured for 72 h. Cytoch...

We present inelastic neutron scattering results on [email protected]#O3.94 for temperatures T between 4 K and 295 K. We find that this compound is a charge-disordered material, in which both Mn-Mn and Mn-Mn nonlinear chains are formed once the electrons have become localized. Unlike the case for the parent material LiMn2O4, we find that the Jahn-Teller active Mn 31 ions in the Li-doped system are...

Microbially mediated oxidation of Mn(II) to Mn(III/IV) oxides influences the cycling of metals and remineralization of carbon. Despite the prevalence of Mn(II)-bearing minerals in nature, little is known regarding the ability of microbes to oxidize mineral-hosted Mn(II). Here, we explored oxidation of the Mn(II)-bearing mineral rhodochrosite (MnCO3 ) and characteristics of ensuing Mn oxides by ...

Manganese redox enzymes play crucial roles in a variety of biological systems. These include the photosynthetic oxidation of water m dioxygen, the disproport ionat ion of hydrogen peroxide, the disproport ionat ion of superoxide, and ribonucleotide reduction. The Mn sites in two of these systems, the photosynthetic oxygen evolving complex (OEC) and the Mn catalase from L. planrarum have been ch...

Introduction: Median Nerve (MN) originated from medial and lateral cords of Brachial Plexus can be affected by anatomical variations which may lead to several diagnostic and therapeutic mistakes. This paper aim is to study about MN variations investigated by cadaveric studies. Materials and Methods: This study is based on research in electronic databases. Full text of all relevant papers has b...

Manganese (Mn) is an essential element. However, excess Mn causes neurotoxicity. Fetuses and neonates have been discussed as potentially sensitive subpopulations for Mn. In the present study, a previously published physiologically based pharmacokinetic model for Mn in adult rats was extended to examine exposure conditions that could lead to increased central nervous system Mn in developing rats...

Barley (Hordeum vulgare) genotypes display a marked difference in their ability to tolerate growth at low manganese (Mn) concentrations, a phenomenon designated as differential Mn efficiency. Induction of Mn deficiency in two genotypes differing in Mn efficiency led to a decline in the quantum yield efficiency for both, although faster in the Mn-inefficient genotype. Leaf tissue and thylakoid M...