82 research outputs found

    Model-Based Organization Analysis and Design for an ESG Organization

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    11th Command and Control Research and Technology Symposium (CCRTS), June 20-22, 2006, San Diego, C

    Attenuation of hemodynamic responses to laryngoscopy and tracheal intubation: Propacetamol versus lidocaine - A randomized clinical trial

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    The purpose of this study is to assess the effects of propacetamol on attenuating hemodynamic responses subsequent laryngoscopy and tracheal intubation compared to lidocaine. In this randomized clinical trial, 62 patients with the American Anesthesiologists Society (ASA) class I/II who required laryngoscopy and tracheal intubation for elective surgery were assigned to receive propacetamol 2 g/I.V./infusion (group P) or lidocaine 1.5 mg/kg (group L) prior to laryngoscopy. Systolic and diastolic blood pressures (SBP, DBP), mean arterial pressure (MAP), and heart rate (HR) were recorded at baseline, before laryngoscopy and within nine minutes after intubation. In both groups P and L, MAP increased after laryngoscopy and the changes were statistically significant (P < 0.001). There were significant changes of HR in both groups after intubation (P < 0.02), but the trend of changes was different between two groups (P < 0.001). In group L, HR increased after intubation and its change was statistically significant within 9 minutes after intubation (P < 0.001), while in group P, HR remained stable after intubation (P = 0.8). Propacetamol 2 gr one hour prior intubation attenuates heart rate responses after laryngoscopy but is not effective to prevent acute alterations in blood pressure after intubation. © 2014 Ali Kord Valeshabad et al

    Preparing Future Librarians and Current Information Professionals to Lead Libraries in Times of Crisis

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    Libraries today are expected to be a hub of information service providers and also serve as catalysts for community engagement. LIS education programs are responsible for producing proficient future librarians who will be strong advocates of innovative services to their communities and who can rise to the occasion in providing community-first disaster and health information services. However, one of the most difficult tasks is developing LIS pedagogy that can be delivered both in traditional classrooms and online. To that end, in October 2015, faculty members and graduate students from the School of Library and Information at the University of South Carolina began collaborating with professional librarians from local libraries and the South Carolina State Library to investigate public libraries’ value to their communities in providing critical information services, as well as the libraries’ legitimacy as partners of public health agencies at a time of catastrophic flooding. In 2017, a survey study examined how community members had accessed information during the 2015 flooding and during Hurricane Matthew in October 2016. Situation-specific research conducted in the third study targeted the Houston Public Library system’s main library and its branches affected by Hurricane Harvey in 2017. Librarians’ basic required competencies have been identified. The majority of these competencies and their skill sets have been integrated into the curriculum of the SLIS/USC. A new course, tentatively titled “Community Engagement and Empowerment through Information Environments,” is under development. Continuing education programs and professional development opportunities are also being developed to better prepare professional librarians to provide disaster and health information services

    Distinct sources of interannual subtropical and subpolar Atlantic overturning variability

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    The Atlantic meridional overturning circulation (AMOC) is pivotal for regional and global climate due to its key role in the uptake and redistribution of heat and carbon. Establishing the causes of historical variability in AMOC strength on different timescales can tell us how the circulation may respond to natural and anthropogenic changes at the ocean surface. However, understanding observed AMOC variability is challenging because the circulation is influenced by multiple factors that co-vary and whose overlapping impacts persist for years. Here we reconstruct and unambiguously attribute intermonthly and interannual AMOC variability at two observational arrays to the recent history of surface wind stress, temperature and salinity. We use a state-of-the-art technique that computes space- and time-varying sensitivity patterns of the AMOC strength with respect to multiple surface properties from a numerical ocean circulation model constrained by observations. While, on interannual timescales, AMOC variability at 26° N is overwhelmingly dominated by a linear response to local wind stress, overturning variability at subpolar latitudes is generated by the combined effects of wind stress and surface buoyancy anomalies. Our analysis provides a quantitative attribution of subpolar AMOC variability to temperature, salinity and wind anomalies at the ocean surface

    Overturning in the Subpolar North Atlantic Program: A New International Ocean Observing System

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    For decades oceanographers have understood the Atlantic meridional overturning circulation (AMOC) to be primarily driven by changes in the production of deep-water formation in the subpolar and subarctic North Atlantic. Indeed, current Intergovernmental Panel on Climate Change (IPCC) projections of an AMOC slowdown in the twenty-first century based on climate models are attributed to the inhibition of deep convection in the North Atlantic. However, observational evidence for this linkage has been elusive: there has been no clear demonstration of AMOC variability in response to changes in deep-water formation. The motivation for understanding this linkage is compelling, since the overturning circulation has been shown to sequester heat and anthropogenic carbon in the deep ocean. Furthermore, AMOC variability is expected to impact this sequestration as well as have consequences for regional and global climates through its effect on the poleward transport of warm water. Motivated by the need for a mechanistic understanding of the AMOC, an international community has assembled an observing system, Overturning in the Subpolar North Atlantic Program (OSNAP), to provide a continuous record of the transbasin fluxes of heat, mass, and freshwater, and to link that record to convective activity and water mass transformation at high latitudes. OSNAP, in conjunction with the Rapid Climate Change–Meridional Overturning Circulation and Heatflux Array (RAPID–MOCHA) at 26°N and other observational elements, will provide a comprehensive measure of the three-dimensional AMOC and an understanding of what drives its variability. The OSNAP observing system was fully deployed in the summer of 2014, and the first OSNAP data products are expected in the fall of 2017
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