390 research outputs found
Cracking the Conundrum
From 2004 to 2006, the FOMC raised the target federal funds rate by 4.25%, yet long-maturity yields and forward rates fell. We consider several possible explanations for this "conundrum." The most likely, in our view, is a fall in the term premium, probably associated with some combination of diminished macroeconomic and financial market volatility, more predictable monetary policy, and the state of the business cycle.
Cracking the Conundrum
From 2004 to 2006, the FOMC raised the target federal funds rate by 4.25%, yet long-maturity yields and forward rates fell. We consider several possible explanations
for this \conundrum." The most likely, in our view, is a fall in the term premium, probably associated with some combination of diminished macroeconomic and financial market volatility, more predictable monetary policy, and the state of the business cycle
The distribution of mesopelagic fishes in the equatorial and western North Atlantic Ocean
Examination of about 290 midwater trawl hauls made to a depth of 1000 m in the equatorial and western North Atlantic Ocean from 1961 to 1968 suggests that at least 10 physical boundaries determine the ranges of mesopelagic fishes. The boundaries delimit six pelagic regions----the Slope Water Region, the Northern Sargasso Sea, the Southern Sargasso Sea, the Gulf of Mexico, the Caribbean Sea, and the Amazonian Region----and partly delimit four others----the Eastern Gyre and the Labrador, Lesser Antillean, and Guinean regions...
Cracking the Conundrum
From 2004 to 2006, the FOMC raised the target federal funds rate by 4.25%, yet long-maturity yields and forward rates fell. We consider several possible explanations
for this \conundrum." The most likely, in our view, is a fall in the term premium, probably associated with some combination of diminished macroeconomic and financial market volatility, more predictable monetary policy, and the state of the business cycle
Interdisciplinary study of warm core ring physics, chemistry, and biology
We are conducting an interdisciplinary study of the structure and
dynamics of Gulf Stream \Warm Core Rings by a time series investigation of
selected rings. This program consists of highly integrated components
which include physical, chemical, and biological investigation and
modeling studies. These components are designed to provide information
on the structure of rings and exchange mechanisms at ring boundaries, on their marine chemistry, and on the environmental controls of biological
activity of selected constituents associated with Warm Core Rings. This
research is being conducted by approximately two dozen investigators from
thirteen marine institutions. An interdisciplinary program of the scope
proposed is required in order to understand the interdependence among
biological, chemical, and physical processes in the ocean. This study of
the structure and evolution of Warm Core Rings will enhance the understanding
of fundamental oceanic processes and the role of rings in the
region where they occur
Optimized Discretization of Sources Imaged in Heavy-Ion Reactions
We develop the new method of optimized discretization for imaging the
relative source from two particle correlation functions. In this method, the
source resolution depends on the relative particle separation and is adjusted
to available data and their errors. We test the method by restoring assumed pp
sources and then apply the method to pp and IMF data. In reactions below 100
MeV/nucleon, significant portions of the sources extend to large distances (r >
20 fm). The results from the imaging show the inadequacy of common Gaussian
source-parametrizations. We establish a simple relation between the height of
the pp correlation function and the source value at short distances, and
between the height and the proton freeze-out phase-space density.Comment: 36 pages (inc. 9 figures), RevTeX, uses epsf.sty. Submitted to Phys.
Rev.
The breakthrough listen search for intelligent life: 1.1â1.9 GHz observations of 692 nearby stars
We report on a search for engineered signals from a sample of 692 nearby stars using the Robert C. Byrd
Green Bank Telescope, undertaken as part of the Breakthrough Listen Initiative search for extraterrestrial intelligence. Observations were made over 1.1â1.9 GHz (L band), with three sets of five-minute observations of the
692 primary targets, interspersed with five-minute observations of secondary targets. By comparing the âONâ
and âOFFâ observations we are able to identify terrestrial interference and place limits on the presence of engineered signals from putative extraterrestrial civilizations inhabiting the environs of the target stars. During the
analysis, eleven events passed our thresholding algorithm, but a detailed analysis of their properties indicates
they are consistent with known examples of anthropogenic radio frequency interference. We conclude that, at
the time of our observations, none of the observed systems host high-duty-cycle radio transmitters emitting between 1.1 and 1.9 GHz with an Equivalent Isotropic Radiated Power of ⌠1013 W, which is readily achievable
by our own civilization. Our results suggest that fewer than ⌠0.1% of the stellar systems within 50 pc possess
the type of transmitters searched in this survey
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