n engl j med 372;9 nejm.org february 26, 2015 875 dent Barack Obama’s promise in his 2013 State of the Union address to enact gun-control legislation was stymied, and the composition of the current Congress augurs ill for such federal legislation. Surveys show that a strong majority of Americans want better gun control, and the medical community is solidly behind them. So what stands in the way...

The southern Brazilian highland plateau is a mosaic of two contrasting plant communities, Araucaria forests and grasslands, both differing in the relative abundances and spatial patterns of soil nitrate and ammonium. However, we still do not know the inorganic N preferences of one key species in this mosaic, Araucaria angustifolia, the dominant tree species in the Araucaria forests and an impor...

Nitrogen metabolism was examined in the intertidal seaweeds Fucus vesiculosus, Fucus serratus, Fucus spiralis and Laminaria digitata in a temperate Irish sea lough. Internal NO(3) (-) storage, total N content and nitrate reductase activity (NRA) were most affected by ambient NO(3) (-), with highest values in winter, when ambient NO(3) (-) was maximum, and declined with NO(3) (-) during summer. ...

Standards for vaccine production have been increasing at a rapid rate. Current standards of good manufacturing practice (GMP) had been thought to be out of the reach of developing country vaccine producers, many of whom are in the public sector, overseen by unvalidated national regulatory authorities (NRAs). With the advent of the GMP regulations in 1963 and their application to vaccine product...

In response to a “crisis” in Social Security financing two decades ago Congress implemented an increase in the Normal Retirement Age (NRA) of two months per year for cohorts born in 1938 and after. These cohorts began reaching retirement age in 2000. This paper studies the effects of these benefit cuts on recent retirement behavior. The evidence strongly suggests that the mean retirement age of...

Distant speech recognition over microphone arrays is challenging, especially in multi source environments. In this paper, a non reference anchor array (NRA) framework for distant speech recognition is proposed. The NRA framework uses a non reference anchor array to capture the interfering speech sources, in addition to the primary array that captures the speech source of interest. The framework...

We report for the first time the use of a perovskite (CH3NH3PbI3) absorber in combination with ZnO nanorod arrays (NRAs) for solar cell applications. The perovskite material has a higher absorption coefficient than molecular dye sensitizers, gives better solar cell stability, and is therefore more suited as a sensitizer for ZnO NRAs. A solar cell efficiency of 5.0% was achieved under 1000 W m(-...

El propósito de este artículo es revisar las corrientes eclesiológicas y teológicas que impulsaron el origen desarrollo del modelo G-12 iglesias celulares, aparte analizar su conceptualización e implementación como una marca refleja en parte espíritu McDonalizador presente muchas organizaciones eclesiásticas, la búsqueda lograr eficiencia, calculabilidad, predictabilidad control, para garantiza...

We investigate a query language for complex-object databases, which is designed to (1) express only tractable queries, and (2) be as expressive over flat relations as first order logic with fixpoints. The language is obtained by extending the nested relational algebra NRA with a "bounded fixpoint" operator. As in the flat case, all PTime computable queries over ordered databases are expressible...

The CAMOUFLAGE Project is a national german research initiative led by the Deutsche Telekom. It aims at the provision of a TINA conform distributed processing environment based on existing legacy telecommunication systems. The envisaged target architecture is a switched ATM network deploying B-ISDN. Using an integrative approach a mutual stimulation between the TINA technology and the BISDN tec...