u. t. place claims that philosophical problems concerning the true nature of mind-brain relationship disappears or is settled adhering to materialism, especially type identity theory of mind. he takes above claim as a reasonable scientific hypothesis. i shall argue why it is not as he claims. at first, to pave the way for refutation, i will briefly clarify place's approach to the subject i...

Privacy is needed in ad hoc networks. An ad hoc on-demand position-based private routing algorithm, called A02P, is proposed for communication anonymity. Only the position of the destination is exposed in the network for route discovery. To discover routes with the limited routing information, a receiver contention scheme is designed for determining the next hop. pseudo identifiers are used for...

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abraham ungar is professor in the department of mathematics at north dakota state university. after gaining his b.sc. (1965) and m.sc. (1967) from the hebrew university in pure mathematics and ph.d. (1973) from tel-aviv university in applied mathematics, he held a postdoctoral position at the university of toronto (1974). ungar moved from toronto to pretoria where he held the position of a seni...

A general-purpose and useful mobility model must be able to describe complex movement dynamics, correlate movement dynamics with the nodes geographic position and be sufficiently generic to map the characteristics of the movement dynamics to general geographic regions. Moreover, it should also be possible to infer the mobility model parameters from empirical data and predict the location of any...