Context. Among optical stellar interferometers, the CHARA Array located at Mt Wilson in California offers the potential of very long baselines (up to 330 m) and the prospect of coupling multiple beam combiners. This paper presents the principle and the measured performance of VEGA, Visible spEctroGraph and polArimeter installed in September 2007 at the coherent focus of the array. Aims. With 0....

about 60 percent of the world's known reserves of oil reside in the middle east region. as such, any developments of this region are of utmost importance for the world economy. the strait of hormuz is the export conduit for 90 percent of the oil of the countries bordering the persian gulf, supplying 40 percent of world oil consumption, and is controlled by our country. since assessment of ...

distribution and diversity of income in rural regions according to the characteristics of households and in the framework of sustainable livelihood must be investigated. in this study, in order to investigate the status of income distribution and diversity and its impact on the economy of rural households in alamout region multinomial logit model has been used. the required dates are related to...

classifying remote sensing imageries to obtain reliable and accurate landuse/cover (luc) information still remains a challenge that depends on many factors suchas complexity of landscape especially in arid region. the aim of this paper is to extractreliable luc information from land sat imageries of the pishkouh watershed of centralarid region, iran. the classical maximum likelihood classifier ...

JEL classification: C65, D63, D71, D81 Mathematics Subject Classification (2000): 91B16

To study whether foreign aid fuels personal, regional and ethnic favoritism, we use satellite data on nighttime light for any region in any aid-recipient country, and we determine for each year and each country the region in which the current political leader was born. Having a panel with 22,850 regions in 91 aid recipient countries with yearly observations from 1992 to 2005, we compare the eff...

One goal of state merit-based financial aid programs is to increase the stock of college-educated labor in the state by retaining college-educated persons in the state after college. However, there has been surprisingly little research on whether state merit aid programs are effective at this goal. This paper investigates the effect of state merit aid programs on the post-college location of 24...

This paper examines convergence of real GDP per capita in the selected East Asian countries and this relationship with selected Middle East countries during the period 1950-2009. The reason behind this refers to the fact that East Asia countries (including China, Hong Kong, Singapore, Malaysia, Indonesia, Thailand, Japan and South Korea) have been involved in achieving success arising from regi...