Given two non negative integers h and k, an L(h, k)-labeling of a graphG = (V,E) is a map from V to a set of labels such that adjacent vertices receive labels at least h apart, while vertices at distance at most 2 receive labels at least k apart. The goal of the L(h, k)-labeling problem is to produce a legal labeling that minimizes the largest label used. Since the decision version of the L(h, ...

Forssman antigen, a neutral glycosphingolipid carrying five monosaccharides, was localized in epithelial MDCK cells by the immunogold technique. Labeling with a well defined mAb and protein A-gold after freeze-substitution and low temperature embedding in Lowicryl HM20 of aldehyde-fixed and cryoprotected cells, resulted in high levels of specific labeling and excellent retention of cellular ult...

Plasmodium falciparum triose-phosphate isomerase, a homodimeric enzyme, contains four cysteine residues at positions 13, 126, 196, and 217 per subunit. Among these, Cys-13 is present at the dimer interface and is replaced by methionine in the corresponding human enzyme. We have investigated the effect of sulfhydryl labeling on the parasite enzyme, with a view toward developing selective covalen...

Background: The purpose of this study was to elucidate the association between sentinel lymph node (SLN) metastasis and Ki67 labeling index and to elucidate whether Ki-67 was useful or not for prediction of SLN metastasis in breast cancer. Methods: We identified 343 invasive breast cancer patients with sentinel lymph node biopsy (SLNB) from 2003 to 2012. The association between SLN status and c...

For any non negative real values h and k, an L(h, k)-labeling of a graph G = (V, E) is a function L : V → R such that |L(u) − L(v)| ≥ h if (u, v) ∈ E and |L(u)−L(v)| ≥ k if there exists w ∈ V such that (u, w) ∈ E and (w, v) ∈ E. The span of an L(h, k)-labeling is the difference between the largest and the smallest value of L. We denote by λh,k(G) the smallest real λ such that graph G has an L(h...

Researchers are still searching for the ways to identify different categories of employees according to their exposure to negative acts and psychological experience of workplace bullying. We followed Notelaers and Einarsen's application of the ROC analysis to determine the NAQ-R cut-off scores applying a "lower" and "higher" threshold. The main goal of this research was to develop and test diff...

Labeling refers to the behavior that a person uses specific words label and tends describe according label. For example, when labeled as “environmentally-conscious”, one will enhance his/her pro-environmental behaviors. Thus strengthen environmental self-identity, which, in turn, promote This paper looks into effects of four labels on The study elephant protection found negative can significant...