196 research outputs found

    Industry complexity and the importance of industry leadership versus engagement office size on the quality of audit outcomes

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    Title from PDF of title page (University of Missouri--Columbia, viewed on October 22, 2012).The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file.Dissertation advisor: Dr. Jere R. FrancisVita.Ph. D. University of Missouri--Columbia 2011."May 2011"I examine how industry accounting complexity affects the relative importance of audit industry leadership and engagement office size, for quality of audit outcomes. Recent studies report that both office level industry leaders and larger engagement offices provide higher quality audits. Given the low correlation between industry leadership and office size, these findings are puzzling. I argue that the effects of these office level characteristics vary according to industry complexity. In a sample of clients of Big 4 auditors from 2003 - 2009, my results are consistent with this prediction. Office industry leadership affects audit quality to a greater extent for clients in industries with more complex accounting, while office size matters more for clients in less complex industries. I infer differential audit quality from properties of client earnings and the likelihood of a going concern report. Finally, I find that the differential effects are priced in the market for audit services, as industry leaders earn incrementally higher fees in complex industries.Includes bibliographical reference

    Competition, Proprietary Costs of Financial Reporting, and Financial Statement Comparability

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    Competitors often pay close attention to rivals’ financial reports. For firms with high levels of proprietary information, competition may increase the costs of public disclosure. Theory suggests that such costs, which we refer to as the proprietary costs of financial reporting, may lead to strategic financial reporting. We find that financial statement comparability is decreasing in the proprietary costs of financial reporting. Our results are robust to the use of alternative measures of comparability and alternative measures of proprietary costs of financial reporting. In addition, theory suggests that financial reports will contain stronger signals of managers’ private information when information asymmetry is high. We show that the negative relation between the proprietary costs of financial reporting and financial statement comparability is stronger for firms with poorer information environments. Together, our findings suggest that through the discretion afforded in Generally Accepted Accounting Principles (GAAP), managers of firms with high levels of proprietary information report in a way that reduces the comparability of their financial statements, particularly when information asymmetry is high

    The Effects of Slow Deep Breathing on Measures of Microvascular and Autonomic Function in an Irritable Bowel Syndrome Population

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    Irritable Bowel Syndrome (IBS) is a functional disorder linked to disruptions in autonomic nervous system regulation, which could impair vascular homeostasis. Studies have shown that slow, deep breathing reduces muscle sympathetic nerve activity and arterial stiffness; however, its effects on autonomic regulation in adults with IBS have not been previously investigated. Moreover, the effects of breathing on microvascular endothelium function are unknown. PURPOSE: To investigate the effects of slow, deep breathing on measures of autonomic function and microvascular endothelial function in adults with IBS. METHODS: Adults (ages 18-65 years) with a formal diagnosis of IBS were enrolled and randomized to 4-week controlled breathing or time-control conditions. The experimental group followed a 20-minute slow, deep breathing video 4 to 6 days per week while the control group maintained their regular activity. To assess autonomic function, heart rate variability (HRV) and exercise heart rate recovery (HRR) were measured at baseline and week 4. The HRV test was accompanied by respiration rate measurements to ensure no significant deviations in respiration occurred between assessments as this could impact HRV. Exercise HRR was assessed 30, 60, and 120 seconds following a Balke treadmill VO2 max test. Laser Doppler flowmetry was assessed at baseline (33°C) and in response to local heating up to 43.5°C while blood pressure was measured throughout for the calculation of cutaneous vascular conductance (CVC). RESULTS: Of the 14 participants enrolled, 12 (n=6 for control and experimental groups) completed the study. At baseline, age (p = 0.47) and body mass index (p=0.14) were similar between groups. Respiration rate was similar between HRV assessments in both groups. In the experimental group, %CVC max significantly increased (p = 0.027) at week 4 while HRR was unchanged. A tendency toward a time by group interaction was observed for HRV low frequency to high frequency (LF/HF) ratio (p = 0.066) with slight reductions in the breathing group and increases in the control group. In the control group, %CVC max and HRR were unaltered, though HRR at 120 seconds tended to improve (p=0.08). CONCLUSIONS: Preliminary results from this ongoing study suggest that microvascular endothelial function can improve with 4 weeks of slow, deep breathing exercises in adults with IBS. These alterations in vascular function were unaccompanied by significant changes in autonomic function though trends were observed in HRV. Results show that slow, deep breathing is a viable alternative to physical exercise for improving microvascular function. Findings also suggest that this intervention could result in improved sympathovagal balance in adults with IBS and potentially other individuals with functional disorders

    BioMagResBank

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    The BioMagResBank (BMRB: www.bmrb.wisc.edu) is a repository for experimental and derived data gathered from nuclear magnetic resonance (NMR) spectroscopic studies of biological molecules. BMRB is a partner in the Worldwide Protein Data Bank (wwPDB). The BMRB archive consists of four main data depositories: (i) quantitative NMR spectral parameters for proteins, peptides, nucleic acids, carbohydrates and ligands or cofactors (assigned chemical shifts, coupling constants and peak lists) and derived data (relaxation parameters, residual dipolar couplings, hydrogen exchange rates, pKa values, etc.), (ii) databases for NMR restraints processed from original author depositions available from the Protein Data Bank, (iii) time-domain (raw) spectral data from NMR experiments used to assign spectral resonances and determine the structures of biological macromolecules and (iv) a database of one- and two-dimensional 1H and 13C one- and two-dimensional NMR spectra for over 250 metabolites. The BMRB website provides free access to all of these data. BMRB has tools for querying the archive and retrieving information and an ftp site (ftp.bmrb.wisc.edu) where data in the archive can be downloaded in bulk. Two BMRB mirror sites exist: one at the PDBj, Protein Research Institute, Osaka University, Osaka, Japan (bmrb.protein.osaka-u.ac.jp) and the other at CERM, University of Florence, Florence, Italy (bmrb.postgenomicnmr.net/). The site at Osaka also accepts and processes data depositions

    The NMR restraints grid at BMRB for 5,266 protein and nucleic acid PDB entries

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    Several pilot experiments have indicated that improvements in older NMR structures can be expected by applying modern software and new protocols (Nabuurs et al. in Proteins 55:483–186, 2004; Nederveen et al. in Proteins 59:662–672, 2005; Saccenti and Rosato in J Biomol NMR 40:251–261, 2008). A recent large scale X-ray study also has shown that modern software can significantly improve the quality of X-ray structures that were deposited more than a few years ago (Joosten et al. in J. Appl Crystallogr 42:376–384, 2009; Sanderson in Nature 459:1038–1039, 2009). Recalculation of three-dimensional coordinates requires that the original experimental data are available and complete, and are semantically and syntactically correct, or are at least correct enough to be reconstructed. For multiple reasons, including a lack of standards, the heterogeneity of the experimental data and the many NMR experiment types, it has not been practical to parse a large proportion of the originally deposited NMR experimental data files related to protein NMR structures. This has made impractical the automatic recalculation, and thus improvement, of the three dimensional coordinates of these structures. We here describe a large-scale international collaborative effort to make all deposited experimental NMR data semantically and syntactically homogeneous, and thus useful for further research. A total of 4,014 out of 5,266 entries were ‘cleaned’ in this process. For 1,387 entries, human intervention was needed. Continuous efforts in automating the parsing of both old, and newly deposited files is steadily decreasing this fraction. The cleaned data files are available from the NMR restraints grid at http://restraintsgrid.bmrb.wisc.edu

    What is the future of targeted therapy in rheumatology: biologics or small molecules?

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    Background: Until late in the 20th century, the therapy of rheumatic diseases relied on the use of drugs that had been developed through empirical approaches without detailed understanding of the molecular mechanisms involved. That approach changed with the introduction of biologic therapeutics at the end of the 20th century and by the recent development of small-molecule inhibitors of intracellular signal transduction pathways. Here we compare and discuss the advantages and disadvantages of those two groups of targeted anti-inflammatory therapeutics.Discussion: TNF-blocking biologic agents were introduced into the therapy of rheumatoid arthritis and other autoimmune and inflammatory diseases in the late 1990s. Further biologic agents targeting cytokine networks or specific lymphocyte subsets have since been added to the armamentarium of anti-rheumatic therapy. During the last few years, another wave of novel discoveries led to the development of a new class of small molecule anti-inflammatory compounds targeting intracellular signal transduction molecules, such as tyrosine kinases. In all those cases, the specific targets of the drugs are well defined and significant knowledge about their role in the disease pathomechanism is available, qualifying them for being targeted therapeutics for inflammatory rheumatic diseases. While both groups of targeted therapeutics offer significant clinical benefit, they clearly differ in several aspects, such as the localization of their targets, their route of administration and target specificity, as well as technical details such as manufacturing procedures and cost basis. In this debate paper, we compare the advantages and disadvantages of the two different approaches, aiming to shed light on the possible future of targeted therapies.Summary: Biologic therapeutics and small-molecule inhibitors both have significant advantages and disadvantages in the therapy of rheumatic diseases. The future of targeted therapies is one of the most exciting questions of current rheumatology research and therapy. © 2014 Mócsai et al.; licensee BioMed Central Ltd

    America's Rural Hospitals: A Selective Review of 1980s Research

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    We review 1980s research on American rural hospitals within the context of a decade of increasing restrictiveness in the reimbursement and operating environments. Areas addressed include rural hospital definitions, organizational and financial performance, and strategic management activities. The latter category consists of hospital closure, diversification and vertical integration, swing-bed conversion, sole community provider designation, horizontal integration and multihospital system affiliation, marketing, and patient retention. The review suggests several research needs, including: developing more meaningful definitions of rural hospitals, engaging in methodologically sound work on the effects of innovative programs and strategic management activities—including conversion of the facility itself—on rural hospital performance, and completing studies of the effects of rural hospital closure or conversion on the health of the communities served.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/74857/1/j.1748-0361.1990.tb00682.x.pd

    Human and mouse essentiality screens as a resource for disease gene discovery.

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    The identification of causal variants in sequencing studies remains a considerable challenge that can be partially addressed by new gene-specific knowledge. Here, we integrate measures of how essential a gene is to supporting life, as inferred from viability and phenotyping screens performed on knockout mice by the International Mouse Phenotyping Consortium and essentiality screens carried out on human cell lines. We propose a cross-species gene classification across the Full Spectrum of Intolerance to Loss-of-function (FUSIL) and demonstrate that genes in five mutually exclusive FUSIL categories have differing biological properties. Most notably, Mendelian disease genes, particularly those associated with developmental disorders, are highly overrepresented among genes non-essential for cell survival but required for organism development. After screening developmental disorder cases from three independent disease sequencing consortia, we identify potentially pathogenic variants in genes not previously associated with rare diseases. We therefore propose FUSIL as an efficient approach for disease gene discovery
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