The following articles are being highlighted as part of Circulation: Cardiovascular Imaging’s Topic Review. This series summarizes the most important articles, as selected by the editors, that have published in the Circulation portfolio. The studies included in this article represent the most significant research in the area of structural heart disease, cardiac function, aortic disease, and mol...

This paper argues that the textbook search and matching model cannot generate the observed business-cycle-frequency fluctuations in unemployment and job vacancies in response to shocks of a plausible magnitude. In the United States, the standard deviation of the vacancy-unemployment ratio is almost 20 times as large as the standard deviation of average labor productivity, while the search model...

Previous reports indicate that mutations within the Autographa californica nucleopolyhedrosis virus FP25K gene (open reading frame 61) significantly reduce incorporation of enveloped nucleocapsids into viral occlusions. We report that FP25K is a nucleocapsid protein of both the budded virus (BV) and occluded virus (ODV), and we describe the effects of two FP25K mutations (480-1 [N-terminal trun...

The following articles are being highlighted as part of Circulation: Cardiovascular Imaging’s Topic Review. This series summarizes the most important articles, as selected by the editors, that have published in the Circulation portfolio. The studies included in this article represent the most significant research in the area of structural heart disease, cardiac function, aortic disease, and mol...

Department of Obstetrics and Gynecology, Hadassah Medical Center, Jerusalem, Israel Clinical Research Center, Massachusetts Institute of Technology, E17-445 Cambridge, MA 02139, USA Clinical Research Center, Massachusetts Institute of Technology, E25-604, Cambridge, MA 02139, USA Robertson Centre for Biostatisics, University of Glasgow, Glasgow, Scotland, UK Department of Anatomy and Neurobiolo...

The following articles are being highlighted as part of Circulation: Cardiovascular Imaging’s Topic Review. This series summarizes the most important articles, as selected by the editors, that have published in the Circulation portfolio. The studies included in this article represent the most significant research in the area of structural heart disease, cardiac function, aortic disease, and mol...

The following articles are being highlighted as part of Circulation: Cardiovascular Imaging’s Topic Review. This series summarizes the most important articles, as selected by the editors, that have published in the Circulation portfolio. The studies included in this article represent the most significant research in the area of structural heart disease, cardiac function, aortic disease, and mol...

Peter Dayan E25-210, MIT Cambridge, MA 02139 We provide a model of the standard watermaze task, and of a more challenging task involving novel platform locations, in which rats exhibit one-trial learning after a few days of training. The model uses hippocampal place cells to support reinforcement learning, and also, in an integrated manner, to build and use allocentric coordinates.

The following articles are being highlighted as part of Circulation: Cardiovascular Imaging’s Topic Review. This series summarizes the most important articles, as selected by the editors, that have published in the Circulation portfolio. The studies included in this article represent the most significant research in the area of structural heart disease, cardiac function, aortic disease, and mol...