Medical Bill Problems Steady for U.S. Families, 2007-2010

Examines changes in the proportion of people in families having difficulty paying medical bills during the recession by age group, insurance status, income, amount owed, amount paid off, and estimated time to pay off bills. Considers contributing factors

Using Information From Income Tax Forms to Target Medicaid and CHIP Outreach: Preliminary Results of the Maryland Kids First Act

Examines the implementation and early results of Maryland's use of state income tax forms to identify low-income families and target outreach efforts to enroll eligible children in the State Children's Health Insurance Program. Discusses lessons learned

Effects Of The ACA’s Health Insurance Marketplaces On The Previously Uninsured: A Quasi-Experimental Analysis

Descriptive studies have suggested that the Affordable Care Act’s (ACA) health insurance Marketplaces improved access to care. However, no quasi-experimental evidence is currently available to support these findings. We use longitudinal survey data to compare previously- uninsured adults to adults who had employer-sponsored insurance (ESI) prior to the ACA, in the income range eligible for subsidized Marketplace coverage (138-400% of poverty). Among the previously-uninsured group, the ACA led to a significant decline in the uninsurance rate (-10.8 percentage points), decreased barriers to medical care, increased use of outpatient services and prescriptions drugs, and increased identification of high blood pressure, compared to a control group with stable ESI. Changes were largest among those with incomes between 138-250% of poverty, who were eligible for the ACA’s cost-sharing reductions. Our quasi-experimental approach provides rigorous new evidence that the ACA’s Marketplaces led to improvements in several important health care outcomes, particularly among lower-income adults

Insurance Churning Rates For Low-Income Adults Under Health Reform: Lower Than Expected But Still Harmful For Many

Changes in insurance coverage over time, or “churning,” may have adverse consequences, but there has been little evidence on churning since implementation of the major coverage expansions in the Affordable Care Act (ACA) in 2014. We explored the frequency and implications of churning through surveying 3,011 low-income adults in Kentucky, which used a traditional expansion of Medicaid; Arkansas, which chose a “private option” expansion that enrolled beneficiaries in private Marketplace plans; and Texas, which opted not to expand. We also compared 2015 churning rates in these states to survey data from 2013, before the coverage expansions. Nearly 25 percent of respondents in 2015 changed coverage during the previous twelve months—a rate lower than some previous predictions. We did not find significantly different churning rates in the three states over time. Common causes of churning were job-related changes and loss of eligibility for Medicaid or Marketplace subsidies. Churning was associated with disruptions in physician care and medication adherence, increased emergency department use, and worsening self-reported quality of care and health status. Even churning without gaps in coverage had negative effects. Churning remains a challenge for many Americans, and policies are needed to reduce its frequency and mitigate its negative impacts

Cross modal perception of body size in domestic dogs (Canis familiaris)

While the perception of size-related acoustic variation in animal vocalisations is well documented, little attention has been given to how this information might be integrated with corresponding visual information. Using a cross-modal design, we tested the ability of domestic dogs to match growls resynthesised to be typical of either a large or a small dog to size- matched models. Subjects looked at the size-matched model significantly more often and for a significantly longer duration than at the incorrect model, showing that they have the ability to relate information about body size from the acoustic domain to the appropriate visual category. Our study suggests that the perceptual and cognitive mechanisms at the basis of size assessment in mammals have a multisensory nature, and calls for further investigations of the multimodal processing of size information across animal species

Cytological and transcript analyses reveal fat and lazy persister-like bacilli in tuberculous sputum

As nonreplicating tubercle bacilli are tolerant to the cidal action of antibiotics and resistant to multiple stresses, identification of this persister-like population of tubercle bacilli in sputum presents exciting and tractable new opportunities to investigate both responses to chemotherapy and the transmission of tuberculosis

Measurement of the cosmic ray spectrum above 4×10184{\times}10^{18} eV using inclined events detected with the Pierre Auger Observatory

A measurement of the cosmic-ray spectrum for energies exceeding $4{\times}10^{18}$ eV is presented, which is based on the analysis of showers with zenith angles greater than $60^{\circ}$ detected with the Pierre Auger Observatory between 1 January 2004 and 31 December 2013. The measured spectrum confirms a flux suppression at the highest energies. Above $5.3{\times}10^{18}$ eV, the "ankle", the flux can be described by a power law $E^{-\gamma}$ with index $\gamma=2.70 \pm 0.02 \,\text{(stat)} \pm 0.1\,\text{(sys)}$ followed by a smooth suppression region. For the energy ($E_\text{s}$) at which the spectral flux has fallen to one-half of its extrapolated value in the absence of suppression, we find $E_\text{s}=(5.12\pm0.25\,\text{(stat)}^{+1.0}_{-1.2}\,\text{(sys)}){\times}10^{19}$ eV.Comment: Replaced with published version. Added journal reference and DO

Energy Estimation of Cosmic Rays with the Engineering Radio Array of the Pierre Auger Observatory

The Auger Engineering Radio Array (AERA) is part of the Pierre Auger Observatory and is used to detect the radio emission of cosmic-ray air showers. These observations are compared to the data of the surface detector stations of the Observatory, which provide well-calibrated information on the cosmic-ray energies and arrival directions. The response of the radio stations in the 30 to 80 MHz regime has been thoroughly calibrated to enable the reconstruction of the incoming electric field. For the latter, the energy deposit per area is determined from the radio pulses at each observer position and is interpolated using a two-dimensional function that takes into account signal asymmetries due to interference between the geomagnetic and charge-excess emission components. The spatial integral over the signal distribution gives a direct measurement of the energy transferred from the primary cosmic ray into radio emission in the AERA frequency range. We measure 15.8 MeV of radiation energy for a 1 EeV air shower arriving perpendicularly to the geomagnetic field. This radiation energy -- corrected for geometrical effects -- is used as a cosmic-ray energy estimator. Performing an absolute energy calibration against the surface-detector information, we observe that this radio-energy estimator scales quadratically with the cosmic-ray energy as expected for coherent emission. We find an energy resolution of the radio reconstruction of 22% for the data set and 17% for a high-quality subset containing only events with at least five radio stations with signal.Comment: Replaced with published version. Added journal reference and DO

Measurement of the Radiation Energy in the Radio Signal of Extensive Air Showers as a Universal Estimator of Cosmic-Ray Energy

We measure the energy emitted by extensive air showers in the form of radio emission in the frequency range from 30 to 80 MHz. Exploiting the accurate energy scale of the Pierre Auger Observatory, we obtain a radiation energy of 15.8 \pm 0.7 (stat) \pm 6.7 (sys) MeV for cosmic rays with an energy of 1 EeV arriving perpendicularly to a geomagnetic field of 0.24 G, scaling quadratically with the cosmic-ray energy. A comparison with predictions from state-of-the-art first-principle calculations shows agreement with our measurement. The radiation energy provides direct access to the calorimetric energy in the electromagnetic cascade of extensive air showers. Comparison with our result thus allows the direct calibration of any cosmic-ray radio detector against the well-established energy scale of the Pierre Auger Observatory.Comment: Replaced with published version. Added journal reference and DOI. Supplemental material in the ancillary file