165,207 research outputs found
The construction of Karen Karnak: The multi-author-function
No full textThis thesis is situated within the comparatively recent developments of Web 2.0 and the emergence of interactive WikiMedia, and explores the mode of authorship within a Read/Write culture compared to that of a Read/Only tradition. The hypothesis of this study is that the role of the audience has become merged with the author, and as such, represents new functions and attributes, distinct from a more conventional concept of authorship, in which the roles of audience and author are more separate. Read/Write and participatory culture, as defined by this study, is focused on collaboration, and includes the influences of D.I.Y. culture, Open-Source practices and the production of text by multiple authors. Multi-authorship presents a re-thinking of several concepts which support the notion of the individual author, since the focus of multi-authorship is not on attribution and ownership of a finished text, but on the continued malleability of a text. Modes of multi-authorship, demonstrated in the use of the pseudonyms Alan Smithee and Karen Eliot, represent declarative authors whose names signify multiple origins, whilst concurrently indicating a distinct body of work. The function of these names form an important context to this study, since primary research involves the construction of an experimental mode of multi-authorship utilising WikiMedia technology and the interaction of thirty nine participants, who are invited to create a body of work under the collective pseudonym Karen Karnak. The data generated by this experiment is analysed using aspects of Michel Foucault's author-function to identify and determine power structures inherent in the WikiMedia context. The interplay of power structures, including concepts such as identity, ownership and the body of work, affect the resulting mode of authorship and contribute to the construction of Karen Karnak, suggesting further areas of research into the emerging multi-author
Sylvilagus obscurus (Lagomorpha: Leporidae)
No full textEdelman, Andrew J (2019): Sylvilagus obscurus (Lagomorpha: Leporidae). Mammalian Species 51 (984): 128-135, DOI: 10.1093/mspecies/sez018, URL: http://dx.doi.org/10.1093/mspecies/sez01
J Waves of Osborn Revisited
No full textIn 1953, Joseph Osborn examined the physiologic effects of hypothermia and defined typical associated changes in the electrocardiogram (ECG), now known as J waves of Osborn. There is a subtlety, however: Osborn's J waves were absent in hypothermic animals whose pH was maintained via mechanical ventilation. Osborn wrote: “We regard this as evidence that the ECG changes … may not be associated with the low temperature directly, but rather may be more closely associated with faulty elimination of CO2under hypothermic conditions” (1).
This principle is illustrated in a 64-year-old man who presented hypothermic to 92°F and profoundly acidemic (pH 7.03) after cardiac arrest. Striking J waves are evident on initial ECG (A). Controlled cooling was initiated; hypothermia was maintained to preserve brain function. Intubation and resuscitation restored bicarbonate, carbon dioxide concentrations, and pH. At pH 7.33, although body temperature was identical at 92°F, the J waves had resolved (B)
[Report to Chief J. E. Curry, by an unknown author #1]
No full textReport to Chief J. E. Curry, by an unknown author. The report contains a list of officers who gave depositions to the United States Attorney
[Report to Chief J. E. Curry, by an unknown author #2]
No full textReport to Chief J. E. Curry, by an unknown author. The report contains a list of officers who gave depositions to the United States Attorney
Den-site selection of eastern spotted skunks in the southern Appalachian Mountains
No full textSprayberry, Tyler R, Edelman, Andrew J (2018): Den-site selection of eastern spotted skunks in the southern Appalachian Mountains. Journal of Mammalogy 99 (1): 242-251, DOI: 10.1093/jmammal/gyx168, URL: http://dx.doi.org/10.1093/jmammal/gyx16
Fig. 3 in Sylvilagus obscurus (Lagomorpha: Leporidae)
No full textFig. 3.—Distribution of Sylvilagus obscurus based on Campbell et al. (2010) and county distribution records from state natural heritage inventory databases of Pennsylvania, Maryland, West Virginia, Virginia, Kentucky, Tennessee, North Carolina, South Carolina, Georgia, and Alabama.Published as part of Edelman, Andrew J, 2019, Sylvilagus obscurus (Lagomorpha: Leporidae), pp. 128-135 in Mammalian Species 51 (984) on page 130, DOI: 10.1093/mspecies/sez018, http://zenodo.org/record/716890
A general procedure for infrared thermography heat transfer measurements in hypersonic wind tunnels
No full textHeat transfer measurements in hypersonic wind tunnels are particularly challenging when dealing with fully three-dimensional geometries and/or flows with high spatial temperature gradients. In the present work, a full and consistent description of a general procedure to perform infrared thermography heat transfer measurements is proposed. Radiometric and optical camera calibration, spectral directional emissivity characterization, model oscillations correction and 3D surface temperature reconstruction problems are theoretically and practically analyzed along with new solutions. A novel hybrid heat transfer problem is proposed. This technique is based on the solution of the direct problem during the wind tunnel unsteady start-up to accurately estimate the initial condition for the inverse problem solution during the quasi-steady test phase. The data reduction procedure was validated through an experimental campaign conducted in the Boeing/AFOSR Mach-6 Quiet Tunnel on a sharp cone at 0 deg angle of attack. The experimental Stanton number obtained by solving a one-dimensional heat transfer problem is in agreement with the theoretical laminar solution for a range of free-stream conditions with an average error between −1.1÷0.64% and a standard deviation of 1.55%. Finally, a two-dimensional heat transfer problem has been solved when the cone is tested at 6 deg angle of attack demonstrating the IR procedure capability to analyze multi-dimensional flows and to take into account tangential conduction effects caused by surface temperature gradients due to the presence of crossflow vortices
Reconsidering the Edelman equation: impact of plasma sodium concentration, edema and body weight
No full textBackground: Guidelines recommend treatment of dysnatremias to be guided by formulas based on the Edelman equation. This equation describes the relation between plasma sodium concentration and exchangeable cations. However, this formula does not take into account clinical parameters that have recently been associated with local tissue sodium accumulation, which occurs without concurrent water retention. We investigated to what extent such clinical factors affect the Edelman equation and dysnatremia treatment. Methods: We performed a post-hoc analysis with original data of the Edelman study. Linear regression was used to examine the effect of age, sex, weight, edema, total body water (TBW) and heart and kidney failure on the Edelman equation. With attenuated correction, we corrected for measurement errors of both variables. Using piecewise regression, we analyzed whether the Edelman association differs for different plasma sodium concentrations. Results: Data was available for 82 patients; 57 males and 25 females with a mean (SD) age of 57 (15) years. The slope of the Edelman equation was significantly affected by weight (p=0.01) and edema (p=0.03). Also, below and above plasma sodium levels of 133 mmol/L the slope of the Edelman equation was significantly different (1.25 x0025vs 0.58x0025, p<0.01). Conclusion: Edelman's equation's coefficients are significantly affected by weight, edema and plasma sodium, possibly reflecting differences in tissue sodium accumulation capacity. The performance of Edelman-based formulas in clinical settings may be improved by taking these clinical characteristics into account
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