X-ray Signatures of Circumnuclear Gas in AGN

X-ray spectra of AGN are complex. X-ray absorption and emission features trace gas covering a wide range of column densities and ionization states. High resolution spectra show the absorbing gas to be outflowing, perhaps in the form of an accretion disk wind. The absorbing complex shapes the form of the X-ray spectrum while X-ray reverberation and absorption changes explain the spectral and timing behaviour of AGN. We discuss recent progress, highlighting some new results and reviewing the implications that can be drawn from the data.Comment: Proceedings of the conference "Suzaku 2011, Exploring the X-ray Universe: Suzaku and Beyond

The Global Implications of the Hard X-ray Excess in Type 1 AGN

Recent evidence for a strong 'hard excess' of flux at energies > 20 keV in some Suzaku observations of type 1 Active Galactic Nuclei (AGN) has motivated an exploratory study of the phenomenon in the local type 1 AGN population. We have selected all type 1 AGN in the Swift Burst Alert Telescope (BAT) 58-month catalog and cross-correlated them with the holdings of the Suzaku public archive. We find the hard excess phenomenon to be a ubiquitous property of type 1 AGN. Taken together, the spectral hardness and equivalent width of Fe K alpha emission are consistent with reprocessing by an ensemble of Compton-thick clouds that partially cover the continuum source. In the context of such a model, ~ 80 % of the sample has a hardness ratio consistent with > 50% covering of the continuum by low-ionization, Compton-thick gas. More detailed study of the three hardest X-ray spectra in our sample reveal a sharp Fe K absorption edge at ~ 7 keV in each of them, indicating that blurred reflection is not responsible for the very hard spectral forms. Simple considerations place the distribution of Compton-thick clouds at or within the optical broad line region.Comment: Accepted for publication in Ap

Wikipedia as Distributed Knowledge Laboratory: The Case of Neoliberalism

Merit, Expertise and Measuremen

Advanced crew procedures development techniques

The development of an operational computer program, the Procedures and Performance Program (PPP), is reported which provides a procedures recording and crew/vehicle performance monitoring capability. The PPP provides real time CRT displays and postrun hardcopy of procedures, difference procedures, performance, performance evaluation, and training script/training status data. During post-run, the program is designed to support evaluation through the reconstruction of displays to any point in time. A permanent record of the simulation exercise can be obtained via hardcopy output of the display data, and via magnetic tape transfer to the Generalized Documentation Processor (GDP). Reference procedures data may be transferred from the GDP to the PPP

Dance/movement therapy impact on quality of life in clients with co-occurring HIV, addiction, and mood disorders.

The purpose of this experimental clinical case study was to investigate dance/movement therapy as an integrated interpersonal form of treatment that would meet the needs of a person with co-occurring diagnoses. To pursue this goal, three subjects diagnosed with co-occurring HIV, addiction, and mood disorders received individual dance/movement therapy twice a week for four weeks during the intervention phase of the study. A search of the literature found that clients with these particular cooccurring disorders generally received either psychiatric care with substance use treatment or medical care. One basis of the treatment outcome provided through dance/movement therapy offered these chents an opportunity to experience integration of cognitive, physical, emotional, and social aspects of being. This treatment modality provided a nonverbal approach to therapy that allowed the client to directly express emotions through the body; hence, stimulating unrestricted verbal expression of painful and frightening emotions.The eight-week study was a multiple baseline single-case experimental design using the ABA format (i.e. baseline-intervention-baseline phases) with repeated measures. Data was collected and analyzed from 1) pre- and post Health-Related Quality of Life assessment tool Medical Outcomes Study Short Form-36 version 2 Health Survey (MOS SF-36v2), 2) pre- and post interviews, and 3) researcher field notes of individual dance/movement therapy sessions. The results of the study partially supported the hypothesis that dance/movement therapy impacts quality of life in mental and physical health for the targeted population.M.A., Creative Arts in Therapy -- Drexel University, 200