background and purpose: diabetes is the most common metabolic disorder which is caused by defects in insulin secretion, insulin action, or both .the most important factor in managing diabetes is self-care. since diabetes self-care behaviors are multifactorial and these factors may directly or indirectly affect self-care, it is possible through the application of path analysis to estimate the di...

The statistics of gravitationally lensed arcs, which can be used for a variety of cosmological tests, are sensitive to the intrinsic shapes of the source galaxies. I present an analytic formalism that makes it simple to include elliptical sources in analytic calculations of lens statistics. For cuspy lens models, sources with an axis ratio of 2:1 enhance the total number of arcs longer than 10:...

For every integer r > 3 and every ε > 0 we construct a graph with maximum degree r − 1 whose circular total chromatic number is in the interval (r, r + ε). This proves that (i) every integer r > 3 is an accumulation point of the set of circular total chromatic numbers of graphs, and (ii) for every ∆ > 2, the set of circular total chromatic numbers of graphs with maximum degree ∆ is infinite. Al...

This paper presents and estimates a dynamic stochastic general equilibrium model in which labor reallocations between production and organizational tasks and endogenous movements in measured TFP serve as an ampli…cation mechanism in business cycles. In our model, the organizational tasks are related to accumulation of organizational capital which enhances the …nancial relationships between …rms...

Can a country grow faster by saving more? We address this question both theoretically and empirically. In our model, growth results from innovations that allow local sectors to catch up with the frontier technology. In relatively poor countries, catching up with the frontier requires the involvement of a foreign investor, who is familiar with the frontier technology, together with effort on the...