The archaeological site of Shahr-i Sokhta, in the Sistan region south-eastern Iran, is noted for exceptional preservation human remains documented its necropolis. This report describes results a non-destructive multidisciplinary investigation into double burial excavated at preserving two skeletons subadults. first part this study provides an archaeotanatological and bioarchaeological descripti...

rijab valley, located in 180 km west of kermanshah, is considered to be one of the tourists centers of kermanshah because of having various landscapes and monuments. however, the results of one of the field studies of 157 tourist subjects show that the majority of the tourists do not know much about all the attractions of the valley. in a way that about 31.2% of the tourists were not aware of t...

the world health organization (who) has supported and recommended study and research on the various aspects of leishmaniasis which is one of the six major tropical region diseases. cutaneous leishmaniasis is considered as a common parasitic disease in iran. considering the fact that few studies have been conducted about some centers of disease such as khorram-shahr and the information about the...

We have tested a relative spectral lag (RSL) method suggested earlier as a luminosity/redshift (or distance) estimator, using the generalized method by Schaefer & Collazzi. We find the derivations from the luminosity/redshift-RSL (L/R-RSL) relation are comparable with the corresponding observations. Applying the luminosityRSL relation to two different GRB samples, we find that there exist no vi...

Gamma-ray burst statistics are best explained by a source population at cosmological distances, while spectroscopy and intensity histories of some individual bursts imply an origin on Galactic neutron stars. To resolve this inconsistency I suggest the presence of two populations, one at cosmological distances and the other Galactic. I build on ideas of Shemi and Piran (1990) and of Mészáros and...

The final fate of spherically symmetric collapse of a perfect fluid which follows the γ-law equation of state and adiabatic condition is investigated. Full general relativistic hydrodynamics is solved numerically using a retarded time coordinate, the so-called observer time coordinate. Thanks to this coordinate, the causal structure of the resultant space-time is automatically constructed. Then...