2,686 research outputs found

    Implementing Cognitive Behavioral Therapy into Post Cerebral Vascular Accident Rehabilitation: An Occupational Therapy Guideline

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    Strokes are a leading cause of disability in the United States, with approximately 7 million adults currently living with a stroke. The incidence rate of strokes is expected to significantly increase by 2030, which demonstrates a need for this population to receive quality care (Billinger et al., 2014). There is extensive research on how occupational therapists provide skilled interventions for the physical and cognitive deficits of a stroke; however, a gap in the literature exists regarding treatment of the psychosocial impairments an individual may experience post-stroke. Specifically, there is limited research on how to treat post-stroke depression (PSD) and post-stroke anxiety (PSA), which are two prevalent psychosocial impairments resulting from a stroke, that lead to an interruption in occupational performance. Cognitive-behavioral therapy (CBT) is a common frame of reference implemented in mental health practice; the authors investigated how CBT techniques could be implemented into post-stroke therapy to target PSD and PSA, thereby leading to increased occupational performance. The authors completed an extensive literature review before creating the product; this included the overall need for addressing PSA and PSD in typical post-stroke rehabilitation, and evidence supporting the use of CBT with this population. The literature review was completed using reliable databases and journals that generated articles relevant to the proposed topic and profession. Upon completion of the literature review, the authors created the guide following the occupational therapy process addressed within the Occupational Therapy Practice Framework: Domain and Process (2014). The most evidence-based strategies and interventions were included within the guide. Additionally, the product was based on the Model of Human Occupation (MOHO), and contains five sections. Part 1 is an overview of the psychosocial limitations that may present after a stroke, and how CBT can be incorporated into occupational therapy interventions as an adjunctive method to enhance the therapy process and outcomes. Part II provides occupational therapists with assessments that are appropriate to use with individuals post-stroke. Part III is an overview of occupational therapy intervention planning strategies to facilitate collaboration between the client and therapist. Part IV is the actual guide, and contains several CBT strategies, handouts, and worksheets that can assist the occupational therapist in providing the client with helpful tools to learn more about and overcome the psychosocial impairments they are experiencing. This guide is not intended to replace existing methods of occupational therapy intervention, but rather to serve as a supplement for providing a more comprehensive approach to post-stroke rehabilitation. Part V is a summary of the materials presented in the guide, as well as explaining the need for continuing research. The overall purpose of this guide was to facilitate occupational performance and functioning among this post-stroke population by occupational therapists using CBT strategies as a means for treating post-stroke depression (PSD) and post-stroke anxiety (PSA)

    Good Laboratory Practices Are Not Synonymous with Good Scientific Practices, Accurate Reporting, or Valid Data

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    Reproduced with permission from Environmental Health Perspectives. DOI:10.1289/ehp.0901495In her commentary, Tyl (2009) responded to our criticism (Myers et al. 2009) of her bisphenol A (BPA) research (Tyl et al. 2008), and she defended the reliance on Good Laboratory Practices (GLP) in animal studies concerning risks posed by chemicals. Her commentary, however, provides additional evidence that her research on BPA is flawed and that GLP can be unreliable

    One Team’s Journey with iRubrics

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    This study explains the process of incorporating electronic grading rubrics into multiple sections of one Digital Literacy course at one online university. Researchers share their experience transitioning from paper rubrics to electronic iRubrics linked directly into each assignment, a process that involved evaluating existing course rubrics, revising them to align with assignments and institutional learning outcomes (ILOs), running pilot courses using the automated iRubrics tool, and training faculty on the use of these new rubrics and the iRubrics tool. The experiences suggest that using iRubrics instead of paper rubrics can significantly increase the efficiency of grading and offer quick access to performance reports based on ILOs and program objectives

    Mass and luminosity evolution of young stellar objects

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    A model of protostar mass and luminosity evolution in clusters gives new estimates of cluster age, protostar birthrate, accretion rate and mean accretion time. The model assumes constant protostar birthrate, core-clump accretion, and equally likely accretion stopping. Its parameters are set to reproduce the initial mass function, and to match protostar luminosity distributions in nearby star-forming regions. It obtains cluster ages and birthrates from the observed numbers of protostars and pre-main sequence (PMS) stars, and from the modal value of the protostar luminosity. In 31 embedded clusters and complexes the global cluster age is 1-3 Myr, matching available estimates based on optical spectroscopy and evolutionary tracks. This method of age estimation is simpler than optical spectroscopy, and is more useful for young embedded clusters where optical spectrocopy is not possible. In the youngest clusters, the protostar fraction decreases outward from the densest gas, indicating that the local star-forming age increases outward from a few 0.1 Myr in small protostar-dominated zones to a few Myr in large PMS-dominated zones.Comment: To appear in The Astrophysical Journal, Part

    Design and Analysis of a Dynamically Configured Log-based Distributed Security Event Detection Methodology

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    Military and defense organizations rely upon the security of data stored in, and communicated through, their cyber infrastructure to fulfill their mission objectives. It is essential to identify threats to the cyber infrastructure in a timely manner, so that mission risks can be recognized and mitigated. Centralized event logging and correlation is a proven method for identifying threats to cyber resources. However, centralized event logging is inflexible and does not scale well, because it consumes excessive network bandwidth and imposes significant storage and processing requirements on the central event log server. In this paper, we present a flexible, distributed event correlation system designed to overcome these limitations by distributing the event correlation workload across the network of event-producing systems. To demonstrate the utility of the methodology, we model and simulate centralized, decentralized, and hybrid log analysis environments over three accountability levels and compare their performance in terms of detection capability, network bandwidth utilization, database query efficiency, and configurability. The results show that when compared to centralized event correlation, dynamically configured distributed event correlation provides increased flexibility, a significant reduction in network traffic in low and medium accountability environments, and a decrease in database query execution time in the high-accountability case

    Green Chemistry: Terminology and Principles

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    Mergers in Double-Peaked [O III] Active Galactic Nuclei

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    As a natural consequence of galaxy mergers, binary active galactic nuclei (AGNs) should be commonplace. Nevertheless, observational confirmations are rare, especially for binaries with separations less than ten kpc. Such a system may show two sets of narrow emission lines in a single spectrum owing to the orbital motion of the binary. We have obtained high-resolution near-infrared images of 50 double-peaked [O III] 5007 AGNs with the Keck II laser guide star adaptive optics system. The Sloan Digital Sky Survey sample is compiled from the literature and consists of 17 type-1 AGNs between 0.18 < z < 0.56 and 33 type-2 AGNs between 0.03 < z < 0.24. The new images reveal eight type-1 and eight type-2 sources that are apparently undergoing mergers. These are strong candidates of kpc-scale binary AGNs, because they show multiple components separated between 0.6 and 12 kpc and often disturbed morphologies. Because most of the type-1s are at higher redshifts than the type-2s, the higher merger fraction of type-1s (47+/-20%) compared to that of type-2s (24+/-10%) can be attributed to the general evolution of galaxy merger fraction with redshift. Furthermore, we show that AGN mergers are outliers of the M_BH-sigma relation because of over-estimated stellar velocity dispersions, illustrating the importance of removing mergers from the samples defining the M_BH-sigma relations. Finally, we find that the emission-line properties are indistinguishable for spatially resolved and unresolved sources, emphasizing that scenarios involving a single AGN can produce the same double-peaked line profiles and they account for at least 70% of the double-peaked [O III] AGNs.Comment: ApJ accepted with major revisions, main results unchanged. 7 pages, 5 figures, 1 table, emulateapj styl

    Gravitational Microlensing of a Reverberating Quasar Broad Line Region - I. Method and Qualitative Results

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    The kinematics and morphology of the broad emission line region (BELR) of quasars are the subject of significant debate. The two leading methods for constraining BELR properties are microlensing and reverberation mapping. Here we combine these two methods with a study of the microlensing behaviour of the BELR in Q2237+0305, as a change in continuum emission (a "flare") passes through it. Beginning with some generic models of the BELR - sphere, bicones, disk - we slice in velocity and time to produce brightness profiles of the BELR over the duration of the flare. These are numerically microlensed to determine whether microlensing of reverberation mapping provides new information about the properties of BELRs. We describe our method and show images of the models as they are flaring, and the unlensed and lensed spectra that are produced. Qualitative results and a discussion of the spectra are given in this paper, highlighting some effects that could be observed. Our conclusion is that the influence of microlensing, while not strong, can produce significant observable effects that will help in differentiating the properties of BELRs.Comment: 17 pages, 14 low resolution figures, 1 table, accepted for MNRAS. v2: Corrected velocities p16, 8 to 0.08, 9 to 0.0
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