background: considering the role of laboratory tests as a central part of controlling health expenditure, this study intends to investigate laboratory tests overutilization in iran to pave the way for future interventions.   methods: inappropriate laboratory utilization was reviewed in a cross-sectional survey through the retrospective analysis of 384 medical records at a tertiary center. to pa...

The pricing mechanism in the gasoline market has often been subject of public debate Greece during crisis years. Inefficient could imply oligopolistic practices and losses to consumers’ welfare. A way test for inefficient pricing, is by testing asymmetries adjustment domestic prices world oil price changes. present paper tests asymmetric variations Greek examines whether structural reforms that...

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We study spacecraft motion near a binary asteroid by means of theoretical and computational tools from geometric mechanics and dynamical systems. We model the system assuming that one of the asteroids is a rigid body (ellipsoid) and the other a sphere. In particular, we are interested in finding periodic and quasi-periodic orbits for the spacecraft near the asteroid pair that are suitable for o...

We investigate the spectrum of elementary particles and fields arising from the superposition of string configurations weighted according to their entropy in the string phase space. We find that this superposition describes a universe with a physical content phenomenologically compatible with the experimental observations and measurements. Masses and couplings are determined as functions of the...

Observations in the region of the Pribilof Islands and Canyon (PIC) reveal a clockwise circulation around the group of islands and around each of the two largest islands, St. Paul and St. George. Six current meters deployed around St. Paul Island revealed a steady clockwise flow around the island, which was strongest south of the island and weakest to the east. We use a high-resolution tidal mo...

Korhonen, Phillips, Teich and Wallenius (1998), in their letter to the Editor, observe with some dismay that people are often not willing to improve the compromises they have achieved through negotiations and provide some possible explanations and remedies. In this note we attempt to address several of the concerns raised in the letter and point the reader to relevant literature. Acceptance of ...

We consider the stability under adaptive learning dynamics of steady state equilibria in Diamond’s (1965) overlapping generations growth model with capital and money. Interior steady state equilibria of this model can be either dynamically inefficient or dynamically efficient. We show that a necessary condition for an equilibrium of this model to be stable under adaptive learning is that the eq...

Gamete production for both males and females can be energetically expensive such that selection should maximize fertilization opportunities while minimizing fertilization costs. In laboratory studies of Drosophila reproduction, however, the failure of eggs to yield adult progeny can be quite high, suggesting that female control over gamete utilization is surprisingly inefficient. We examined ga...