background: the present study was aimed to investigate molecular diversity of echino-coccus granulosus isolates collected from human clinical samples using two mitochondrial genes cox1 and nad1 in iran . methods: forty seven human hydatid cysts were collected through surgery from two hospitals in tehran during 2010-2012. to determine the fertility of protoscoleces, the cyst fluids were subjecte...

background: hydatidosis or cystic hydatid disease is one of the most important diseases in human and animals. identification of strains is important for improvement of control and prevention of dis-ease. the aim of this study was to determine the strains isolated from human and domestic animals in ilam province, iran, using pcr-rflp method. methods: respectively, 30 and 4 animal and human hydat...

A neural implementation of the snapshot model of insect navigation proposed by Cartwright and Collett (1987, 1983) is presented. The neural circuit comprises simple model neurons with graded response and requires only local interconnections. As in the snapshot model, differences in bearings as well as differences in apparent size of landmarks are taken into account. The results obtained from si...

Snapshot isolation (SI) is a popular concurrency control protocol, but it permits non-serializable schedules that violate database integrity. The Serializable Snapshot Isolation (SSI) protocol ensures (view) serializability by preventing pivot structures in SI schedules. In this paper, we leverage the SSI approach and develop the Declarative Serializable Snapshot Isolation (DSSI) protocol, an S...

In this snapshot, Wally Feurzeig, one of the originators of Logo, and an innovative designer of mathematics education learning environments, recalls some compelling vignettes from the early history of Logo (including activities with the first Logo-controlled wireless turtle), with children ranging in age from pre-schoolers to fifth-graders. Wally passed away this past year. Wally was a long-tim...

The research community has adopted a sequence of snapshots as the logical representation of evolving graphs — graphs that change over time and whose history of evolution we want to preserve for analysis. This paper argues that the snapshot sequence model of evolving graphs is insufficient for representation and analysis of a wide range of networks. Instead, we propose to use the interval model ...

â  â  background hepatitis c virus (hcv) infection is responsible for considerable morbidity and mortality worldwide. the hcv genotype has a geographic distribution and an important role in clinical and histological outcomes. this study determined hcv genotypes and their related risk factors among patients from khuzestan province, southwest iran. methods in a cross-sectional study, 223 patients...

Data Snapshot technology is a standard feature of modern storage systems. Most such systems use copy-on-write techniques to manage snapshot data in order to optimize storage space requirements for maintaining history data. Copy-on-write methods tend to write data out-of-place at a location which may be far away from the original location of the data on the disk. This phenomenon gradually leads ...

Smartphones are being adopted en-masse throughout the world. Its adoption in education has witnessed a diversity of implementations with various outcomes. In particular, seamless learning is a broad pedagogical approach key in mobile learning design. With the goals of enhancing academic achievement and self-directed learners, a trial smartphone-enabled implementation was carried out for a unit ...

Regulated necrosis, termed necroptosis, is mediated by the kinase activity of RIPK1 and RIPK3. It has distinct cellular features that are different than apoptosis. Necroptosis can be triggered by extracellular stimuli known to activate inflammation and cell death and its intracellular signaling pathway involves necrosome formation and MLKL activation. Inhibition of necroptosis has been shown to...