lf as the grammatical locus of semantic interpretation in minimalism implies that lf is the only level at which any structural condition can be checked. accordingly, cross over effects provides some evidence for the existence of lf. to provide further evidence for the universality of cross over effects at lf, a comparative research between persian-english, turkish-english and persian-turkish ha...

The controversial rule of Quantifier Raising cannot be fully subsumed under the standard definition of the Move operation. We argue that the differences between overt movement and QR can be accounted for if the syntactic computation proceed s top-down (and left-right), rather than bottom-up. In a bottom-up derivation, a phrase must be first merged in argument position, and the remerge position ...

We present efficient Pure Pointer Machine (PPM) algorithms to test for “leftness” in dynamic search trees and related problems. In particular, we show that the problem of testing if a node x is in the leftmost branch of the subtree rooted in node y, in a dynamic tree that grows and shrinks at the leaves, can be solved on PPMs in worst-case O((lg lg n)) time per operation in the semidynamic case...

gut, resulting from the shift to the right side, of tissue derived from the left side of the embryo. Rightness and leftness of derivation are maintained and can be observed in later development when these regions have been stained. When stain was localized in the right wall of the duodenum after application to the right or midventral region in the level of the prospective duodenum, or posterior...

Human beings have remarkable social attention skills. From the initial processing of cues, such as eye gaze, head direction, and body orientation, we perceive where other people are attending, allowing us to draw inferences about the intentions, desires, and dispositions of others. But before we can infer why someone is attending to something in the world we must first accurately represent wher...

lefty-1, lefty-2, and nodal are expressed on the left side of developing mouse embryos and are implicated in left-right (L-R) determination. The role of lefty-1 was examined by analyzing mutant mice lacking this gene. The lefty-1-deficient mice showed a variety of L-R positional defects in visceral organs. Unexpectedly, however, the most common feature of lefty-1-/- mice was thoracic left isome...