this paper presents new sensitivity-based methods for detection of structural damage using incomplete noisy modal data. these methods are based on the first-order derivative of modal parameters. changes of natural frequency do not usually provide spatial information on the structural damage. they are also not sensitive to the local damage. in this paper, a new sensitivity function is proposed u...

Why do females increase parental effort when caring for the offspring of attractive males? First, attractive males may be poor fathers so that their females are compelled to increase their own contribution in order to fledge some young (the partnercompensation hypothesis). Second, females mated to attractive males may be willing to increase their parental effort to reap high indirect benefits f...

In this paper we rigorously formulate the Schema Theorem for Genetic Programming (GP). This involves defining a schema, schema order, and defining length and accounting for the variable length and the non-homologous nature of GP's representation. The GP Schema Theorem and the related notion of a GP Building Block are used to constlUct a testable hypothetical account of how GP' searches by hiera...

Let T denote a rooted b-ary tree and let {Sv}v∈T denote a branching random walk indexed by the vertices of the tree, where the increments are i.i.d. and possess a logarithmic moment generating function Λ(·). Let mn denote the minimum of the variables Sv over all vertices at the nth generation, denoted by Dn. Under mild conditions, mn/n converges almost surely to a constant, which for convenienc...

iranian historical houses constitute a significant part of the architectural heritage of the country both qualitatively and quantitatively though due research is not conducted on them. this study investigates t0he physical evolution of qajar house of baqeri in gorganand attempts to monitor life stream over its lifespan. the study also investigates the effect of external transformations on archi...

A popular theory of life's origins states that the first biocatalysts were not made of protein but were made of RNA or a very similar polymer. Experiments are beginning to confirm that the catalytic abilities of RNA are compatible with this 'RNA world' hypothesis. For example, RNA can synthesize short fragments of RNA in a template-directed fashion and promote formation of peptide, ester and gl...

In this paper we study two-sided, one-to-one matching problems and consider the most wellknown solution concept: the men-optimal solution. The men-optimal solution fails to satisfy consistency as well as converse consistency. Thanks to Sasaki and Toda (1992), we know that the minimal consistent extension of the men-optimal solution equals the core (Thomson, 1994a). In this paper, we compute the...