2,827 research outputs found
One million additional children in poverty since 2009: 2010 data reveal nearly one in four southern children now live in poverty
In this brief, the authors use the ACS data released on September 22 to focus on child poverty. The authors report that between 2009 and 2010 an additional one million children joined the ranks of those in poverty. This brings the total to an estimated 15.7 million poor children in 2010, an increase of 2.6 million since the Great Recession began in 2007
Over sixteen million children in poverty in 2011
In this brief, authors Marybeth Mattingly, Jessica Bean, and Andrew Schaefer use American Community Survey data released on September 20, 2012 to address patterns of child poverty. To evaluate the changes in child poverty, they focused on two time periods -- change since 2007, as the nation entered the recession, and change since 2010. According to the American Community Survey, the overall child poverty rate for the United States rose slightly from 21.6 in 2010 to 22.5 percent in 2011, resulting in an estimated 16.4 million children living in poverty. Of these children, 6.1 million are young (under age 6). Forty-five percent, or 32.7 million, of America’s children reside in families with incomes below 200 percent of the poverty threshold. They conclude that, in the wake of the recession, child poverty remains high, presenting significant challenges for children’s futures
The Effect of Health Insurance on Out of Pocket Expenditure
The dependent care provision of the Affordable Care Act went into effect September 2010. This change in insurance policy can be used as a natural experiment to examine the effect of health insurance on healthcare expenditures using a control function two-part model to address endogeneity
Swearing by New Technology: Strengthening the Fourth Amendment by Utilizing Modern Warrant Technology While Satisfying the Oath or Affirmation Clause
Constraining Charming Betsy: Textual Ambiguity as a Predicate to Applying the Charming Betsy Doctrine
Past and present deepwater contour-current bedforms at the base of the Sigsbee Escarpment, northern Gulf of Mexico
Using a high-resolution deep-towed seismic system, we have discovered a series
of contour-current bedforms at the base of the Sigsbee Escarpment in the Bryant Canyon
region of the northern Gulf of Mexico. We identify a continuum of bedforms that
include furrows, meandering furrows, flutes and fully eroded seafloor. These contourcurrent
bedforms are linked to current velocities ranging from 20 to upwards of 60 cm/s
based on nearby current meter measurements and similar flume generated bedforms
(Allen, 1969). We identify erosion and non-deposition of up to 25 meters of surface
sediment at the base of Sigsbee Escarpment.
Using 3-D and high-resolution seismic data, sediment samples, and submersible
observations from the Green Knoll area, we further define contour-current bedforms
along the Sigsbee Escarpment. The study area is divided into eleven zones based on
bedform morphology, distribution, and formation processes. We identify a contourcurrent
bedform continuum similar to that of the Bryant Canyon region, while the data
reveals additional features that result from the interaction between topography and
contour-currents. Three regional seismic marker horizons are identified, and we establish an age of ~19 kyr on the deepest horizon. The seismic horizons are correlated
with very subtle changes in sediment properties, which in turn define the maximum
depth of erosion for each of the individual bedforms.
Finally, we show for the first time that furrowed horizons can be acoustically
imaged in three dimensions below seafloor. Analysis of imagery of several horizons
obtained from 3-D seismic data from the Green Knoll region establishes the existence of
multiple paleo-furrow events. The contour current pattern preserved by the paleofurrows
is similar to the presently active seafloor furrows. And, based on the
morphology and development that we establish for the active seafloor furrows, we show
that paleo-furrows are likely formed by currents that are in the same range as those
measured today (20-60 cm/s), that erode into sediments with similar physical properties
to the fine-grained hemipelagic sediments of the present-day seafloor. We further
suggest the possibility that furrows are formed during inter-glacial highstands and buried
during glacial lowstands
Reliability assessment of the 1964 mariner mars spacecraft
Numerical exercise of reliability model of Mariner Mars spacecraft and spacecraft subsystems reliabilit
Past and present deepwater contour-current bedforms at the base of the Sigsbee Escarpment, northern Gulf of Mexico
Using a high-resolution deep-towed seismic system, we have discovered a series
of contour-current bedforms at the base of the Sigsbee Escarpment in the Bryant Canyon
region of the northern Gulf of Mexico. We identify a continuum of bedforms that
include furrows, meandering furrows, flutes and fully eroded seafloor. These contourcurrent
bedforms are linked to current velocities ranging from 20 to upwards of 60 cm/s
based on nearby current meter measurements and similar flume generated bedforms
(Allen, 1969). We identify erosion and non-deposition of up to 25 meters of surface
sediment at the base of Sigsbee Escarpment.
Using 3-D and high-resolution seismic data, sediment samples, and submersible
observations from the Green Knoll area, we further define contour-current bedforms
along the Sigsbee Escarpment. The study area is divided into eleven zones based on
bedform morphology, distribution, and formation processes. We identify a contourcurrent
bedform continuum similar to that of the Bryant Canyon region, while the data
reveals additional features that result from the interaction between topography and
contour-currents. Three regional seismic marker horizons are identified, and we establish an age of ~19 kyr on the deepest horizon. The seismic horizons are correlated
with very subtle changes in sediment properties, which in turn define the maximum
depth of erosion for each of the individual bedforms.
Finally, we show for the first time that furrowed horizons can be acoustically
imaged in three dimensions below seafloor. Analysis of imagery of several horizons
obtained from 3-D seismic data from the Green Knoll region establishes the existence of
multiple paleo-furrow events. The contour current pattern preserved by the paleofurrows
is similar to the presently active seafloor furrows. And, based on the
morphology and development that we establish for the active seafloor furrows, we show
that paleo-furrows are likely formed by currents that are in the same range as those
measured today (20-60 cm/s), that erode into sediments with similar physical properties
to the fine-grained hemipelagic sediments of the present-day seafloor. We further
suggest the possibility that furrows are formed during inter-glacial highstands and buried
during glacial lowstands
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