cancer is not just one disease, but a large group of almost one hundred diseases. its two main characteristics are uncontrolled growth of the cells in the human body and the ability of these cells to migrate from the original site and spread to distant sites. if the spread is not controlled, cancer can result in death. there has been continuous progress in the development of therapy for cancer....

A quorum system is a collection of subsets of nodes, called quorums, with the property that each pair of quorums have a non-empty intersection. Quorum systems are the key mathematical abstraction for ensuring consistency in fault-tolerant and highly available distributed computing. This paper is a brief overview of the evolution of quorum systems, with emphasis on their role in two fundamental ...

In this paper we survey recent results on the precedence constraint single machine scheduling problem to minimize the weighted sum of completion times. We show how we can benefit from known results in dimension theory of partial orders to obtain improved approximate solutions when precedence constraints have low fractional dimension. We believe that dimension theory of partial orders could be o...

1,3-dibromo-5,5-dimethylhydantoin (dbh) and benzyltriphenylphosphoniumtribromide (btptb) were used as efficient catalysts for the promotion of the synthesis of 1,8-dioxo-octahydroxanthene derivatives (doxos) via a one-pot three component condensation of aldehydes and cyclic 1,3-dicarbonyl compounds in the absence of solvent.

background: many public health agencies rank residential radon exposure as the second leading cause of lung cancer after cigarette smoking. it has been shown that the risk coefficient for lung cancer is higher for children than that for adults. therefore, indoor radon measurements were carried out in the elementary schools of tulkarem province, west bank, palestine. materials and methods: two h...

objectives: controversial findings exist regarding the association between neonate gender and umbilical cord blood lipid levels. this study aims to compare the levels of lipids and lipoprotein b-100 in the umbilical cord blood of male and female newborns and assess the impact of these factors on neonatal anthropometric measurements. methods: this cross-sectional study was performed on 75 health...

a case o f the electrical alternans of t he tu wave and peri odic nega t ive u wave associated with c l ini cal symptoms , e lectrocardi ographic a nd postmortem findi ng s o f romano- ward syndrome has been pres ented. no e lec ~ r o l y te d ist urbance was found t o be r esponsible for t his exceptional l y rare situation . changes i n a-v conduct i on and left bu n• d ie branch block could ...