This study drew upon Kress and Van Leeuwen’s (2006, [1996]) visual grammar and Van Leeuwen’s (2008) social semiotic model to interrogate ways through which social actors of different races are visually and textually represented in four award-winning English-learning software packages.  The analysis was based on narrative actional/reactional processes at the ideational level; mood, perspective, ...

This paper presents a novel feedback method on the motion planning for unicycle robots in environments with static obstacles, along with an extension to the distributed planning and coordination in multi-robot systems. The method employs a family of 2-dimensional analytic vector fields, whose integral curves exhibit various patterns depending on the value of a parameter λ. More specifically, fo...

The concept of Iranian traditional musical modes, namely DASTGÄH, is the basis for the traditional music system. The concept introduces seven DASTGÄHs. It is not an easy process to distinguish these modes and such practice is commonly performed by an experienced person in this field. Apparently, applying artificial intelligence to do such classification requires a combination of the basic infor...

Prevention of medication errors in neonatal intensive care units (NICUs) is of paramount importance due to age-specific and physiological conditions of neonates. This study aimed to evaluate the risk of medication prescription and administration via failure mode and effects analysis (FMEA), which was carried out at the Research and Medical Teaching Center of Imam Reza Hospital in Mashhad, Iran....

in this paper, we investigated the corrected plasmon dispersion relation for graphene in presence of a constant magnetic field which it includes a quantum term arising from the collective electron density wave interference effects. by using quantum hydrodynamic plasma model which incorporates the important quantum statistical pressure and electron diffraction force, the longitudinal plasmons ar...

assessment of the correlation between rock brittleness and rock fracture toughness has been the subject of extensive research works in the recent years. unfortunately, the brittleness measurement methods have not yet been standardized, and rock fracture toughness cannot be estimated satisfactorily by the proposed indices. in the present study, statistical analyses are performed on some data col...

For the production of smooth animation of flow simulation out of only several data steps many interpolated intermediate data steps are needed. Especially for the meteorological visualization of moving clouds for TV broadcasting purposes such interpolations are of high importance. The traditional method for the animation production is to fade one dataset out and to fade the next dataset in. The ...

During the history of geometry people gradually acquired physical knowledge of space, and later consolidated it in a more abstract form of knowledge, geometry. In this paper we describe how elementary school students used physical manipulatives in conjunction with the digital interface of educational software for geometry. The addition of physical manipulatives helped the students to consolidat...

Capability of the Proper Orthogonal Decomposition (POD) method in extraction of the coherent structures from a spatio-temporal chaotic field is assessed in this paper. As the chaotic field, an ensemble of 40 snapshots, obtained from Direct Numerical Simulation (DNS) of the Kuramoto-Sivashinsky (KS) equation, has been used. Contrary to the usual methods, where the ergodicity of the field is need...

Introdouction: Dentinal hypersensitivity (DH) is one of the most painful chronic problems reported in dental offices. Various methods have been applied for the treatment of DH. However, majority of them are either ineffective or last for a short period of time. It has been reported that lasers, particularly Neodymium- doped: Yttrium Aluminum Garnet laser (Nd: YAG), can be helpful in the treatme...