abstract         sasanian dynasty, who governed as the last and the most glorious dynasty before islam in iran, has had an important role in enrichment of sasanian silver works and we owe the majority of silver works to this era. metalwork is one of the oldest arts iniranian civilization. the prominent metalwork crafts‚ left from different ages‚ acknowledge this fact. the art of this era has di...

Work was conducted among traditional, subsistence whale hunters in Lamalera, Indonesia, in order to test if strict biological kinship or lineage membership is more important for explaining the organization of cooperative hunting parties ranging in size from 8 to 14 men. Crew identifications were collected for all 853 hunts that occurred between May 3 and August 5, 1999. Lineage identity and gen...

toos fertile plain, located between two mountain ranges hezarmasjed and binalood, has attracted different ethnic groups through ages due to environmental conditions, and has provided a proper ground for human inhabitation and continuation of life since oldest times. discovery of handmade tools dated to lower paleolithic age in the middle of the plain and banks of kashaf river (kashaf rud), exis...

Most online feedback mechanisms publish unbiased statistics (usually averages) of past ratings. Such mechanisms fail in environments where the same seller sells products of many different qualities, such as marketplaces of used cars and collectibles. This paper presents a novel feedback management mechanism that succeeds in facilitating efficient transactions in such settings. One particularly ...

Empirical tests of resource-intensification models argue for diminishing foraging efficiency among hunter–gatherers in California over the past 2000 years (Basgall, 1987, Research in Economic Anthropology 9, 21–52; Broughton, 1994a, Journal of Archaeological Science 21, 501–514; 1994b, Journal of Anthropological Anthropology 13, 371–401). The evidence for this long-term trajectory consists of d...

abstract:   video embossed tiles, the tiles are fairly large group makes up period, the number of these tiles at golestan palace museum's main hall is used. the study of these works, illuminating many issues and matters relating to art is in period. the phenomenon is illustrated in qajar embossed tiles, cultural factors, social and arts related courses. in this article, the influence of cu...

Finding effective ways of conserving large carnivores is widely recognised as a priority in conservation. However, there is disagreement about the most effective way to do this, with some favouring top-down 'command and control' approaches and others favouring collaboration. Arguments for coercive top-down approaches have been presented elsewhere; here we present arguments for collaboration. In...