Explaining altruistic cooperation is one of the greatest challenges faced by sociologists, economists, and evolutionary biologists. The problem is determining why an individual would carry out a costly behavior that benefits another. Possible solutions to this problem include kinship, repeated interactions, and policing. Another solution that has recently received much attention is the threat o...

Nearly two million more young Americans under the age of 30 voted in the 2008 presidential elections as compared to the 2004 elections, according to new Census data analyzed and released by CIRCLE. The increase is a continuation of the trend observed in the 2004 and 2006 elections. Youth turnout was 11 percentage points higher than in 1996, which was the low point after decades of decline. Whil...

Webster’s asserts that color is “a phenomenon of light or visual perception that enables one to differentiate otherwise identical objects,” and then goes on to say that the Latin root is celare, “to conceal.” It’s a fine definition, because human perception of color is seamless to the extent that it conceals from us almost every causal detail. This talk will discuss common sources of light, the...

PETRI, S. (1937).-Acta Med. Scand., Vol. XCIII, p. 450. PIRIE, A. (1943).-Brit. JI. QOphthal.. Vol. XXVII, p. 291. POCK-STEEN, P. H. (1939).-Ji. Amer. Med Assoc., Vol. CXIII, P. (Abstract). POLLAK, H. (1943).-Trans. Ophthal. Soc. U.K., Vol. LXIII, p. 69. RHOADS, C. P. (1941).-Jl. Nat. Cancer Inst., Vol. I, p. 511. SEBRELL, W. H. and BUTLER, R. E. (1§39).-Public Health Rep., Vol. LIV, p 2882. SH...

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Abstract Glazed decoration in Iran from the Middle Elamite to Achaemenid periods includes world art milestones. With exception of Hasanlu IVB, for most sites, comprehensive chemical and mineralogical data are lacking, owing generally profound alteration vitreous material. To bridge information gap, enable reconstruct operation production chains a diachronic fashion, thirty-six glazed artefacts ...

Abstract At the critical junction of Early and Middle Bronze Ages, marked by fall Ur iii polity, city Susa in today’s southwest Iran left Mesopotamian control became lowland seat Shimashki then Sukkalmah dynasts Zagros mountains, who elevated Elam as a significant power on dynamic early Age Near Eastern geopolitical stage. This transition ushered new political, economic, social conditions, whic...