The critical role and effect of teacher assessment in ELT has been ratified by researchers among whom are Darling-Hammond (2000); Knox (2002); Bailey (2006); Davison & Cummins (2007); and Blum (2009).Taking this issue into account, this exploratory study seeks to investigate the underlying criteria of both recruiting and assessing in-service EFL teachers in private language institutes of Iran. ...

Background: The assessment of RBE quantity in the treatment of cancer tumors with proton beams in treatment planning systems (TPS) is of high significance. Given the significance of the issue and the studies conducted in the literature, this quantity is fixed and is taken as equal to 1.1.Objective: The main objective of this study was to assess RBE quantity of proton beams and their variations ...

A polarimetric imaging system capable of continuously selecting imaging depth in a turbid media is demonstrated. The proposed system is based on the orthogonal polarization spectral (OPS) technique, and is able to detect microstructure and microvessel. First, we compare the performance of four polarization imaging channels on a biological phantom, and find that there is a linear relation betwee...

This is the first comprehensive assessment of the aerosol optical depth (AOD) product retrieved from the near-UV observations by the Ozone Monitoring Instrument (OMI) onboard the Aura satellite. The OMI-retrieved AOD by the UV aerosol algorithm (OMAERUV version 1.4.2) was evaluated using collocated Aerosol Robotic Network (AERONET) level 2.0 direct Sun AOD measurements over 8 years (2005–2012)....

The majority of health problems encountered in association with travel stem from preexisting, perhaps latent, illness in the individual which may be exacerbated by the rigours and hazards of travel. It is essential that the advising physician understands the hazards that are likely to be encountered during travel in order that they may develop informed decisions regarding fitness for travel and...

background and aim: although play seems to be a simple concept, it is complex and varies according to individual experiences. play is a process that follows no rule. it is a spontaneous, funny, flexible, completely attractive, vital, and challenging behavior that aims at no goal. pretend play starts in childhood since 18 months. the play is a potential source for assessment of academic skills a...