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Search Results: 1 - 10 of 211597 matches for " Nancy L. Dawson "
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Physician versus Patient Perception of Physician Hospital Discharge Communication: A Preliminary Study  [PDF]
Michael J. Maniaci, Michael G. Heckman, Nancy L. Dawson
Open Journal of Internal Medicine (OJIM) , 2014, DOI: 10.4236/ojim.2014.44016
Abstract: Background: Physician discharge instructions are critical to patient care because they are the link transitioning the hospital care plan to the home. We hypothesize that physician perception of discharge instructions communication is better than patient perception. Objective: In a preliminary study, to compare patient and physician perception of communication at discharge. Design: Observational, survey-based. Setting: 330-bed adult teaching hospital. Participants: Surveys were mailed to 100 patients discharged home and 49 internal medicine physicians responsible for those patients’ care. Each physician had between 1 and 4 patients surveyed. Measurements: Patients and physicians received anonymous 5-item questionnaires concerning physician communication at discharge. Patient surveys inquired about their physicians’ communication at the specific physician encounter, while physician surveys asked about the physicians’ overall self-perception of discharge communication skills. Results: Completed questionnaires were returned by 59 patients and 40 physicians. Physicians reported a noticeably better perception of communication than their patients regarding spending adequate time reviewing the discharge plan (83% vs. 61%, P = 0.027), speaking slowly enough to understand (98% vs. 80%, P = 0.013), using wording that could be easily understood (100% vs. 68%, P < 0.001) and taking time to answer questions before discharge (85% vs. 59%, P = 0.008). Perception of discharge communication improved with physician experience for several survey items. Conclusions: This study provides evidence suggesting that physician perception of communication at discharge is better than patient perception. Future studies of larger sample size and direct patient-physician pairing focusing on patient satisfaction and outcomes are needed.
Pneumatosis Intestinalis: A Case Report and Approach to Management
Sean Donovan,Joseph Cernigliaro,Nancy Dawson
Case Reports in Medicine , 2011, DOI: 10.1155/2011/571387
Abstract: Pneumatosis intestinalis (PI), defined as gas within the bowel wall, is an uncommon radiographic sign which can represent a wide spectrum of diseases and a variety of underlying diagnoses. Because its etiology can vary greatly, management of PI ranges from surgical intervention to outpatient observation (see, Greenstein et al. (2007), Morris et al. (2008), and Peter et al. (2003)). Since PI is infrequently encountered, clinicians may be unfamiliar with its diagnosis and management; this unfamiliarity, combined with the potential necessity for urgent intervention, may place the clinician confronted with PI in a precarious medical scenario. We present a case of pneumatosis intestinalis in a patient who posed a particularly challenging diagnostic dilemma for the primary team. Furthermore, we explore the differential diagnosis prior to revealing the intervention offered to our patient; our concise yet inclusive differential and thought process for rapid evaluation may be of benefit to clinicians presented with similar clinical scenarios.
Dopaminergic Neuronal Loss, Reduced Neurite Complexity and Autophagic Abnormalities in Transgenic Mice Expressing G2019S Mutant LRRK2
David Ramonet,Jo?o Paulo L. Daher,Brian M. Lin,Klodjan Stafa,Jaekwang Kim,Rebecca Banerjee,Marie Westerlund,Olga Pletnikova,Liliane Glauser,Lichuan Yang,Ying Liu,Deborah A. Swing,M. Flint Beal,Juan C. Troncoso,J. Michael McCaffery,Nancy A. Jenkins,Neal G. Copeland,Dagmar Galter,Bobby Thomas,Michael K. Lee,Ted M. Dawson,Valina L. Dawson,Darren J. Moore
PLOS ONE , 2012, DOI: 10.1371/journal.pone.0018568
Abstract: Mutations in the leucine-rich repeat kinase 2 (LRRK2) gene cause late-onset, autosomal dominant familial Parkinson's disease (PD) and also contribute to idiopathic PD. LRRK2 mutations represent the most common cause of PD with clinical and neurochemical features that are largely indistinguishable from idiopathic disease. Currently, transgenic mice expressing wild-type or disease-causing mutants of LRRK2 have failed to produce overt neurodegeneration, although abnormalities in nigrostriatal dopaminergic neurotransmission have been observed. Here, we describe the development and characterization of transgenic mice expressing human LRRK2 bearing the familial PD mutations, R1441C and G2019S. Our study demonstrates that expression of G2019S mutant LRRK2 induces the degeneration of nigrostriatal pathway dopaminergic neurons in an age-dependent manner. In addition, we observe autophagic and mitochondrial abnormalities in the brains of aged G2019S LRRK2 mice and markedly reduced neurite complexity of cultured dopaminergic neurons. These new LRRK2 transgenic mice will provide important tools for understanding the mechanism(s) through which familial mutations precipitate neuronal degeneration and PD.
La ense anza de los derechos humanos y del derecho humanitario en la universidad
Carlos López Dawson
Polis : Revista de la Universidad Bolivariana , 2001,
Peter Beyer and Lori Beaman, eds., Religion, Globalization and Culture. Leiden: Brill, 2007, 608 pp. $US 99.00 paper (978-90-04-15407-0)
Lorne L. Dawson
The Canadian Journal of Sociology , 2008,
QCD Corrections to Associated Higgs Boson Production
S. Dawson,L. Reina
Physics , 1997, DOI: 10.1103/PhysRevD.57.5851
Abstract: We compute QCD corrections to the processes $e^+e^-\to t \bar t h^0$ and $pp\to t \bar t h^0$ by treating the Higgs boson as a parton which radiates off a heavy quark. This approximatiion is valid in the limits $M_h<
Associated Higgs Production in the MSSM
S. Dawson,L. Reina
Physics , 1998, DOI: 10.1103/PhysRevD.60.015003
Abstract: We investigate the inclusive production of the Higgs bosons of the minimal supersymmetric model with a heavy quark pair, ($t {\bar t}$ and $b {\bar b}$), in e^+e^- collisions at high energies, $\sqrt{s}=500 GeV$ and $\sqrt{s}=1 TeV$. The ${\cal O}(\alpha_s)$ QCD radiative corrections are included and the dependence of the production rates on the parameters of the MSSM is explored. The associated production of a Higgs boson with a $b {\bar b}$ pair receives large resonant contributions and can have a significant rate.
Measuring the Higgs Yukawa Couplings at a Next Linear Collider
S. Dawson,L. Reina
Physics , 1999,
Abstract: We investigate the inclusive production of a Higgs boson with a pair of heavy quarks (t-tbar b-bbar), in e^+e^- collisions at high energies, sqrt(s)=500 GeV and sqrt(s)=1 TeV. We consider both the Standard Model and the supersymmetric case. In both cases O(alpha_s) QCD corrections are included. The associated production of a Higgs boson with a t-tbar pair is extremely sensitive to the top-Higgs Yukawa coupling and may allow the precision measurement of this coupling. In some regions of the supersymmetric parameter space the associated production of a Higgs boson with a b-bbar pair receives large resonant contributions and can have a significant rate.
Next-to-Leading Order Results for t-tbar-h Production at the Tevatron
L. Reina,S. Dawson
Physics , 2001, DOI: 10.1103/PhysRevLett.87.201804
Abstract: We compute the O(alpha_s^3) total cross section for the process (p pbar -> t tbar h) in the Standard Model, at \sqrt{s}=2 TeV. The next-to-leading order corrections drastically reduce the renormalization and factorization scale dependence of the Born cross section and slightly decrease the total cross section for renormalization and factorization scales between m_t and 2m_t.
Top Quark Yukawa Couplings and New Physics
S. Dawson,L. Reina
Physics , 2001, DOI: 10.1063/1.1394318
Abstract: We discuss associated production of a Higgs boson with a pair of $t {\bar t}$ quarks at a future high energy $e^+e^-$ collider. The process $e^+e^-\to t {\bar t}h$ is particularly sensitive to the presence of new physics and we consider the MSSM and models with extra dimensions at the $TeV$ scale as examples.
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