We consider the problem of budget feasible mechanism design proposed by Singer (2010), but in a Bayesian setting. A principal has a public value for hiring a subset of the agents and a budget, while the agents have private costs for being hired. We consider both additive and submodular value functions of the principal. We show that there are simple, practical, ex post budget balanced posted pri...

Land-cover mapping efforts within the USGS Gap Analysis Program have traditionally been state-centered; each state having the responsibility of implementing a project design for the geographic area within their state boundaries. The Southwest Regional Gap Analysis Project (SWReGAP) was the first formal GAP project designed at a regional, multi-state scale. The project area comprises the southwe...

to be able to reach the level of ultimate attainment in the second language, learners need to acquire not only the grammar of the l2 but also the language processing mechanisms involved in the comprehension of sentences in real time. contrary to its importance, very little is known yet about online l2 processing. this study examines whether advanced iranian learners of english reactivate disloc...

the density functional theory (dft) and the natural bond orbital (nbo) calculations basedmethod b3lyp/6-31g were carried out to study the interaction of dopamine with carbon nanotube.the nanotube used in this study, includes 60 c atoms (6, 6) type. relative and formation energies ofcompounds, muliken charges, occupancy, the highest occupied molecular orbital (homo) and thelowest unoccupied mole...

the present paper aims to highlight the origin of the youth movements in iran during the intervening years of 1971 and 2002. during these three decades, youth movement was one of the important social movements in the political arena of the country. while explaining the origin of the movement, two changes i.e. 'generation gap' and 'democracy' have been studied and it was found that the origin of...

this study focuses on the effect of social and cultural determinants on generation gap in tehranian families in 2011. the purpose of this study is to determine effective factors on generation gap in tehranian families, analytical and empirical patterns and be surveyed by related theories and effective factors. the research was prepared by questions including whether there is a relationship betw...