Algorithmic skeleton has received attention as an efficient method of parallel programming in recent years. Using the method, the programmer can implement parallel programs easily. In this study, a set of efficient algorithmic skeletons is introduced for use in implementing parallel genetic algorithm (PGA).A performance modelis derived for each skeleton that makes the comparison of skeletons po...

Objective(s): Vascular calcification is one the major characteristics in patients with various types of chronic inflammatory disorders. MiRNAs have been shown to be involved in many normal biological functions as well as diseases; however, their role in vascular calcification has not received much attention. Materials and Methods: In the current study, we built a vascular calcification rat mode...

paraschistura prokofiev, 2009 is a newly described genus based on osteological characters, but detailed information for all species of the genus is not available. to describe osteological characteristics of the endemic species of paraschistura nielseni , twelve specimens were collected from the shapur river of persis basin which drains to the persian gulf and their osteological characteristics ...

The alternative double bonds and conjugation in the polyene compounds are one of the main properties in these compounds. Each carbon-carbon bonds in a polyene compound along the chain has appreciable double-bond character. The p-electrons are therefore not localized but are relatively free to move throughout the entire carbon skeleton as an one-dimensional box. The skeleton be considered as a r...

The continuous release of CO2 in the atmosphere is increasing acidity seawater worldwide, and pH predicted to be reduced by ~0.4 units 2100. Ocean acidification (OA) changing carbonate chemistry, jeopardizing life marine organisms, particular calcifying organisms. Because their calcareous skeleton limited ability regulate acid–base balance, echinoids are among organisms most threatened OA. In t...

formerly the turkmenian stone loach was the only member of the genus metaschistura based on osteological characters. but recently, it is placed in the genus paraschistura based on mtdna coi data. to provide a detailed description of the osteological characteristics of paraschistura cristata (berg 1898), ten specimens of p. cristata were collected from the hari river basin in iran and their oste...

Skeletal Mg/Ca in echinoderms is thought to be related ambient seawater Mg2+/Ca2+ ratio, which prompts the use of well-preserved fossil as paleoseawater proxies. Nonetheless, experimental studies testing effect ratio on echinoderm skeleton are limited one class, i.e., sea urchins (echinoids). Here, we investigated decreased skeletal composition (Mg/Ca ratio) a star Asterias rubens and brittle O...

osteological features are important to study the taxonomy and phylogenetic relationship of fishes. since there is no information is available about osteological features of squalius orientalis , therefore this study was aimed to provide a detailed description of the osteological features of this species from the urmia lake basin of iran and comparing it with population of s. orientalis from the...

Ca2+ compartments, Ca2+ transport and the calcification process were studied by using 45Ca as a tracer. The biological model used was clones of Stylophora pistillata developed into microcolonies whose skeleton is entirely covered by tissues, thus avoiding direct radioisotope exchange between the sea water and the skeleton. The study of Ca2+ compartments was performed by measuring two complement...

nitrogen containing bisphosphonate (n-bp) therapy is used extensively to treat osteoporosis and osteolytic bone lesions. recently, a special form of osteonecrosis limited to the maxillofacial skeleton has been discovered especially within those patients who are receiving either long-term n-bp therapy alone and/or associated with invasive dental procedure. bisphosphonates accumulate almost exclu...