background: in spite of the increased range of inactivity and obesity among iranian adults, insufficient research has been done on environmental factors influencing physical activity. as a result adapting a subjective (self-report) measurement tool for assessment of physical environment in iran is critical. accordingly, in this study neighborhood environment walkability scale (news) was adapted...

Hotspot oceanic islands typically experience subsidence due to several processes related to migration of the oceanic plate away from the mantle plume and surface flexural loading. However, many other processes can interrupt subsidence, some of which may be associated with catastrophic events. A study of the biostratigraphy and sedimentology of Holocene deposits on Robinson Crusoe Island (RCI) o...

The use of the monomolecular film Arosurf@ MSF as a mosquito larvicide was first reported by Ganett and White (1977). Since then, the efficacy of this larvicide on many mosquito species has been demonstrated in a wide variety of aquatic habitats (Levy et al. 1981, 1982; Mulla et al. 1983, Takahashi et al. 1984). Aquatic plants which occur in fresh and salt water habitats are an important source...

A wearable 'helmet' version of the S cone isolating technique was constructed to explore vision at equiluminance. For my high school summer science project, I visited parks and streets while wearing the helmet and report that the helmet appears to have captured the main properties described for the large-scale, more cumbersome stage version.

normal 0 false false false en-us x-none ar-sa background: assessing educational environment is vital in determining the success or failure of any institute. a positive environment leads to achievements of students in learning while a negative one would hinder their accomplishments. the aim of this study was to evaluate the medical students’ perceptions of their educational environment and to id...

background: in spite of the increased range of inactivity and obesity among iranian adults, insufficient research has been done on environmental factors influencing physical activity. as a result adapting a subjective (self-report) measurement tool for assessment of physical environment in iran is critical. accordingly, in this study neighborhood environment walkability scale (news) was adapted...

writing has always been considered an important literacy skill for foreign/second language learners. the internet provides such unique applications for the writing skill as weblogs, wikis, and social networking websites. up to now researchers have put their focus on the learners’ performances in the traditional paper and pencil environment or wikis and blogs it is time to also consider learners...

Detecting karstification processes in hydrocarbon carbonate reservoirs is important because of their porosity, permeability and also the risk associated with their drilling. A very useful technique to locate buried karsts is 3D seismic. In this research, seismic frequency decomposition (spectral decomposition) and seismic inversion techniques used to identify these sub-surface diagenetic featur...

Sandy beaches support a wide variety of underappreciated biodiversity that is critical to coastal ecosystems. Prior to the 2010 Deepwater Horizon oil spill, the diversity and function of supratidal beach sediment microbial communities along Gulf of Mexico coastlines were not well understood. As such, it was unclear if microbial community compositional changes would occur following exposure to b...