{sl let $[n]={1,dots, n}$ be colored in $k$ colors. a rainbow ap$(k)$ in $[n]$ is a $k$ term arithmetic progression whose elements have different colors. conlon, jungi'{c} and radoiv{c}i'{c} cite{conlon} prove that there exists an equinumerous 4-coloring of $[4n]$ which is rainbow ap(4) free, when $n$ is even. based on their construction, we show that such a coloring of ...

background : cryptosporidium parvum is a ubiquitous protozoan, which develops within the microvillous membrane of enterocytes in a wide variety of vertebrates, including man. cryptosporidiosis is an important parasite causing severe diseases in the immunodeficient people especially aids patients. cryptosporidiosis has been also reported as a com-mon serious primary cause of outbreaks of diarrhe...

Abstrac t. T he essential operations of a quantum computer can be accomplished using solely optical elements, with di€ erent polarization or spatial modes representing the individual qubits. We present a simple all-optical implementation of Grover’ s algorithm for e cient searching, in which a database of four elements is searched with a single query. By `compiling’ the actual set-up, we have ...

YASAMIN MOSTOFI Q. Why are cooperative sensor networks interesting as a research topic? What are some of the benefits and challenges of this technology? Yasamin: The unprecedented growth of sensing, communication, and computation in the past few years has the potential for fundamentally changing the way we interact with our environment. The vision of a multi-agent robotic network cooperatively ...

background and purpose: the 2-chlorophenol (2-cp) and 4-chlorophenol (4-cp) are phenolic compounds which may have adverse effects on human and environment. therefore, removing these compounds from water and wastewater is necessary. this study aims to analyze 2-cp and 4-cp removal by using azolla filiculoides biomass. materials & methods: azolla biomass was sun dried, crushed and sieved to parti...