Limited Wars in the Periphery:

Stereoacuity in the periphery is limited by internal noise.

It is well-established that depth discrimination is finer in the fovea than the periphery. Here, we study the decline in depth discrimination thresholds with distance from the fovea using an equivalent noise analysis to separate the contributions of internal noise and sampling efficiency. Observers discriminated the mean depth of patches of "dead leaves" composed of ellipses varying in size, or...

The Center and Periphery of Composite Graphs

The center (periphery) of a graph is the set of vertices with minimum (maximum) eccentricity. In this paper, the structure of centers and peripheries of some classes of composite graphs are determined. The relations between eccentricity, radius and diameter of such composite graphs are also investigated. As an application we determine the center and periphery of some chemical graphs such as nan...

The New Wars Debate:

The Role of the Crusade Wars in Transition of Islamic-Persian Medicine to Europe

One of the most important and influential events in the interaction between Islamic civilization and the West was the Crusades, which lasted for nearly two centuries and extended from Europe to the Levant and Egypt. The main reasons for these wars, apparently, were the religious zeal of the Christians to seize Jerusalem from the Muslims and, in fact, the territorial expansion and influx of the ...

the u.s. policy in central asia and its impact on the colored revolutions in the region (the case study of tulip revolution in kyrgyzstan)

چکیده ندارد.