A remarkable result of I. Shemer [4] states that the combinatorial structure of a neighbourly 2m-polytope determines the combinatorial structure of each of its subpolytopes. From this, it follows that every subpolytope of a cyclic 2m-polytope is cyclic. In this note, we present a direct proof of this consequence that also yields that certain subpolytopes of a cyclic (2m+ 1)-polytope are cyclic.

Titanium oxide clusters are generated in a supersonic expansion by laser ablation of the metal and reaction with oxygen (0.1-6%) in He expansion gas. Mass spectra of the titanium oxide clusters are observed by photoionization with lasers of three different wavelengths: 118, 193, and 355 nm. Only the 118 nm (10.5 eV) light can ionize Ti(m)O(n) neutral clusters without fragmentation. Both the 193...

In this paper we investigate the spectrum of $OSp(n|2m)$ quantum spin chains with free boundary conditions. We compute surface energy these models which, similar to other properties in thermodynamic limit including effective central charge underlying conformal field theory, depends on $n-2m$ only. For several regime $n-2m< 2$ have studied finite-size subleading logarithmic corrections scaling. ...

A Simpson-Visser spacetime has two nonnegative parameters $a$ and $m$ its metric is correspond with (i) a Schwarzschild for $a=0$ $m\neq0$, (ii) regular black hole $a<2m$, (iii) one-way traversable wormhole $a=2m$, (vi) two-way $a>2m$, (v) an Ellis-Bronnikov $a\neq0$ $m=0$. The one of the most useful spacetimes purpose comprehensively understanding gravitational lensing light rays reflected by ...

Human plasma kallikrein is inactivated by plasma protease inhibitors. This study was designed to determine the nature of these protease inhibitors and to assess their relative importance in the inactivation of kallikrein. Therefore, the kinetics of kallikrein inactivation and the formation of kallikrein inhibitor complexes were studied in normal plasma and in plasma depleted of either alpha 2-m...

We have found markedly deficient expression of the class I major histocompatibility antigens HLA-A,B,C and beta 2m on human small-cell lung cancer (SCLC) lines and fresh tumor samples. The deficit of HLA-A,B,C and beta 2-microglobulin (beta 2m) antigen expression was demonstrated with both radiobinding assays and indirect immunofluorescence assays. Immunoprecipitation of metabolically labeled c...

Novel peptide antigens complexed with human leukocyte antigen (HLA) and beta 2-microglobulin (beta 2M) molecules are presented at the cell surface to cytotoxic T lymphocytes (CTLs), provoking lysis of the antigen-presenting cell [1]. In tumor cells, genetically altered or abnormally expressed proteins provide a source of peptides that can be presented to CTLs; the resulting anti-tumour CTL resp...

The lysyl amino groups of bovine trypsin were covalently modified by acetylation, succinylation, or reductive methylation. The enzymatically active derivatives were still capable of reaction with alpha 2-macroglobulin (alpha 2M), although to a lesser extent than native enzyme. The resulting enzyme-alpha 2M complexes, however, were much more susceptible to dissociation by sodium dodecyl sulfate ...

The European Association of Preventive Cardiology Exercise Prescription in Everyday Practice and Rehabilitative Training (EXPERT) tool has been developed for digital training decision support cardiovascular disease patients clinical practice. prescription recommendation systems sub-healthy people are essential to enhance this dominant group’s physical ability as well. This study aims construct ...

We consider the dual billiard map with respect to a smooth strictly convex closed hypersurface in linear 2m-dimensional symplectic space and prove that it has at least 2m distinct 3-periodic orbits. AMS Classi cation 37J45, 70H12