Evidence of Convective Redistribution of Carbon Monoxide in Aura Tropospheric Emission Sounder (TES) and Microwave Limb Sounder (MLS) Observations

Vertical convective transport is a key element of the tropospheric circulation. Convection lofts air from the boundary layer into the free troposphere, allowing surface emissions to travel much further, and altering the rate of chemical processes such as ozone production. This study uses satellite observations to focus on the convective transport of CO from the boundary layer to the mid and upper troposphere. Our hypothesis is that strong convection associated with high rain rate regions leads to a correlation between mid level and upper level CO amounts. We first test this hypothesis using the Global Modeling Initiative (GMI) chemistry and transport model. We find the correlation is robust and increases as the precipitation rate (the strength of convection) increases. We next examine three years of CO profiles from the Tropospheric Emission Sounder (TES) and Microwave Limb Sounder (MLS) instruments aboard EOS Aura. Rain rates are taken from the Tropical Rainfall Measuring Mission (TRMM) 3B-42 multi-satellite product. Again we find a correlation between mid-level and upper tropospheric CO, which increases with rain rate. Our result shows the critical importance of tropical convection in coupling vertical levels of the troposphere in the transport of trace gases. The effect is seen most clearly in strong convective regions such as the Inter-tropical Convergence Zone

Freshwater mollusk sampling along the southern I-294 corridor.

Sampled 8 sites at 6 stream crossings• Spent 13.5 person-hours surveying (average of 2.3 mussels collected/hr)• Encountered 31 live individuals of 3 mussel species• Only 2 of the 8 sites had mussels• Recorded the following species:▷Giant Floater, Pyganodon grandis (n=29, 94%), most common▷Paper Pondshell, Utterbackia imbecillus (n=1, 3%)▷Lilliput, Toxolasma parvum (n=1, 3%)▷One native snail, Liver Elimia, Elimia livescens, was abundant in Salt Creek• Invasive Asian Clams, Corbicula fluminea, were common at sites▷Upstream reach of I-294 to Bemis Woods littered with relict shells of native unionidsIllinois State Toll Highway Authorityunpublishednot peer reviewe

The Atmospheric Effects of Stratospheric Aircraft: a First Program Report

Studies have indicated that, with sufficient technology development, high speed civil transport aircraft could be economically competitive with long haul subsonic aircraft. However, uncertainty about atmospheric pollution, along with community noise and sonic boom, continues to be a major concern; and this is addressed in the planned 6 yr HSRP begun in 1990. Building on NASA's research in atmospheric science and emissions reduction, the AESA studies particularly emphasizing stratospheric ozone effects. Because it will not be possible to directly measure the impact of an HSCT aircraft fleet on the atmosphere, the only means of assessment will be prediction. The process of establishing credibility for the predicted effects will likely be complex and involve continued model development and testing against climatological patterns. Lab simulation of heterogeneous chemistry and other effects will continue to be used to improve the current models

Obliterative surgery for the treatment of pelvic organ prolapse: A patient survey on reasons for surgery selection and post-operative decision regret and satisfaction

Objectives: To identify patient-reported reasons for selecting obliterative surgery for the purpose of predicting decision regret and satisfaction. Methods: We created a deidentified database of patients who underwent an obliterative procedure for prolapse from 2006 to 2013. Patients were excluded if they declined study participation, were deceased, or had dementia. Participants completed a survey regarding reasons for selecting obliterative surgery and a modified version of validated questionnaires on decision regret (Decision Regret Scale-Pelvic Floor Disorder) and satisfaction (Satisfaction with Decision Scale-Pelvic Floor Disorder). Parsimonious multivariate linear regression models were constructed to determine if any of the reasons given for choosing obliterative surgery were independent predictors of decision regret and satisfaction after controlling for significant sociodemographic, clinical, and surgical outcome data identified by bivariate analysis. Results: Seventy-seven women completed the surveys. "To follow my doctor's recommendations" and "no longer sexually active," and/or "did not plan to be" as reasons for selecting obliterative surgery made the most difference; however, these reasons were not identified as independent predictors of decision regret or satisfaction after controlling for confounders. The regret linear regression models identified preoperative sexual activity rather than the patient-reported reason "no longer sexually active and/or did not plan to be," as the only independent predictor of more decision regret after obliterative surgery (B coefficient 1.68, P < 0.01). The satisfaction linear regression models identified reoperation for any reason as an independent predictor of lower satisfaction ([beta], -0.24; P = 0.04) and the patient-reported reason for choosing obliterative surgery "not interested in pessary" as a predictor of higher satisfaction ([beta], 0.30, P = 0.01). Conclusions: This study advances our knowledge about the obliterative surgical decision making process. Behavioral and educational interventions directed at improving patient and physician communications concerning the dynamics of sexual health issues in an aging population will likely decrease regret when obliterative surgery is chosen. Minimizing reoperation after obliterative surgery through increased experience, knowledge, and improved surgical skills and patient validation when pessary is declined will likely improve satisfaction when obliterative surgery is chosen

A novel low-voltage electron-bombarded CCD readout

We present proof-of-concept results for a novel ultraviolet-sensitive, photon counting, solar blind detector that has the potential for high QE in a compact low voltage, low power, unsealed design. We utilize a delta-doped back-illuminated CCD to read out low energy electrons from a photocathode. In parallel, a new generation of high-QE ultraviolet-sensitive GaN photocathodes is being developed with initial success using delta-doping technology rather than cesiation. In this paper we present results with the new readout using a CsI test cathode, which produces events at under 1000 V accelerating potential

Chandra Observation of the Cluster Environment of a WAT Radio Source in Abell 1446

Wide-angle tail (WAT) radio sources are often found in the centers of galaxy clusters where intracluster medium (ICM) ram pressure may bend the lobes into their characteristic C-shape. We examine the low redshift (z=0.1035) cluster Abell 1446, host to the WAT radio source 1159+583. The cluster exhibits possible evidence for a small-scale cluster-subcluster merger as a cause of the WAT radio source morphology. This evidence includes the presence of temperature and pressure substructure along the line that bisects the WAT as well as a possible wake of stripped interstellar material or a disrupted cool core to the southeast of the host galaxy. A filament to the north may represent cool, infalling gas that's contributing to the WAT bending while spectroscopically determined redshifts of member galaxies may indicate some component of a merger occurring along the line-of-sight. The WAT model of high flow velocity and low lobe density is examined as another scenario for the bending of 1159+583. It has been argued that such a model would allow the ram pressure due to the galaxy's slow motion through the ICM to shape the WAT source. A temperature profile shows that the cluster is isothermal (kT= 4.0 keV) in a series of annuli reaching a radius of 400 kpc. There is no evidence of an ongoing cooling flow. Temperature, abundance, pressure, density, and mass profiles, as well as two-dimensional maps of temperature and pressure are presented.Comment: 40 AASTeX pages including 15 postscript figures; accepted for publication in Ap