3,514 research outputs found
Literary Fiction and the Cultivation of Virtue
Many philosophers have claimed that reading literary fiction makes people more virtuous. This essay begins by defending the view that this claim is empirical. It goes on to review the empirical literature and finds that this literature supports the claim philosophers have made. Three mechanisms are identified whereby reading literary fiction makes people more virtuous: empathy is increased when readers enter imaginatively into the lives of fictional characters; reading literary fiction promotesself-reflection; and readers mimic the prosocial behaviour of fictional characters. The paper concludes with a caution: there is a danger that readers could mimic antisocial behaviour displayed in literary fiction. If they do, reading some literary fiction could make readers less virtuous
Evidence of a Plasmoid-Looptop Interaction and Magnetic Inflows During a Solar Flare/CME Eruptive Event
Observational evidence is presented for the merging of a downward-propagating
plasmoid with a looptop kernel during an occulted limb event on 2007 January
25. RHESSI lightcurves in the 9-18 keV energy range, as well as that of the 245
MHz channel of the Learmonth Solar Observatory, show enhanced nonthermal
emission in the corona at the time of the merging suggesting that additional
particle acceleration took place. This was attributed to a secondary episode of
reconnection in the current sheet that formed between the two merging sources.
RHESSI images were used to establish a mean downward velocity of the plasmoid
of 12 km/s. Complementary observations from the SECCHI suite of instruments
onboard STEREO-Behind showed that this process occurred during the acceleration
phase of the associated CME. From wavelet-enhanced EUVI, images evidence of
inflowing magnetic field lines prior to the CME eruption is also presented. The
derived inflow velocity was found to be 1.5 km/s. This combination of
observations supports a recent numerical simulation of plasmoid formation,
propagation and subsequent particle acceleration due to the tearing mode
instability during current sheet formation.Comment: 8 pages, 9 figures, ApJ (Accepted
Senator James O. Eastland, Bob Dole, Milton R. Young, Carl T. Curtis, George McGovern, James B. Allen, and Hubert H. Humphrey to President Jimmy Carter, 30 September 1977
Copy typed letter signed dated 30 September 1977 from Eastland, Bob Dole, Milton R. Young, Carl T. Curtis, George McGovern, James B. Allen, and Hubert H. Humphrey to Carter, re: sugar tariffs, S. 275 (Food and Agriculture Act of 1977); 2 pages.https://egrove.olemiss.edu/joecorr_h/1064/thumbnail.jp
The Impact of Exercising During Haemodialysis on Blood Pressure, Markers of Cardiac Injury and Systemic Inflammation - Preliminary Results of a Pilot Study
This article is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
License (CC BY-NC-ND) (http://www.karger.com/Services/OpenAccessLicense). Usage and distribution
for commercial purposes as well as any distribution of modified material requires written permission.Background/Aims: Patients requiring haemodialysis have cardiovascular and immune
dysfunction. Little is known about the acute effects of exercise during haemodialysis. Exercise
has numerous health benefits but in other populations has a profound impact upon blood
pressure, inflammation and immune function; therefore having the potential to exacerbate
cardiovascular and immune dysfunction in this vulnerable population. Methods: Fifteen
patients took part in a randomised-crossover study investigating the effect of a 30-min
bout of exercise during haemodialysis compared to resting haemodialysis. We assessed
blood pressure, plasma markers of cardiac injury and systemic inflammation and neutrophil
degranulation. Results: Exercise increased blood pressure immediately post-exercise; however,
1 hour after exercise blood pressure was lower than resting levels (106±22 vs. 117±25 mm
Hg). No differences in h-FABP, cTnI, myoglobin or CKMB were observed between trial arms.
Exercise did not alter circulating concentrations of IL-6, TNF-α or IL-1ra nor clearly suppress
neutrophil function. Conclusions: This study demonstrates fluctuations in blood pressure
during haemodialysis in response to exercise. However, since the fall in blood pressure
occurred without evidence of cardiac injury, we regard it as a normal response to exercise
superimposed onto the haemodynamic response to haemodialysis. Importantly, exercise did
not exacerbate systemic inflammation or immune dysfunction; intradialytic exercise was well
tolerated
X- and gamma-ray observations of the 15 November 1991 Solar Flare
This work expands the current understanding of the 15 November 1991 Solar Flare. The flare was a well observed event in radio to gamma-rays and is the first flare to be extensively studied with the benefit of detailed soft and hard X-ray images. In this work, we add data from all four instruments on the Compton Gamma Ray Observatory. Using these data we determined that the accelerated electron spectrum above 170 keV is best fit with a power law with a spectral index of −4.6, while the accelerated proton spectrum above 0.6 MeV is fit with a power law of spectral index −4.5. From this we computed lower limits for the energy content of these particles of∼1023 ergs (electrons) and ∼1027 ergs (ions above 0.6 MeV). These particles do not have enough energy to produce the white-light emission observed from this event. We computed a time constant of 26+20−15 s for the 2.223 MeV neutron capture line, which is consistent at the 2σ level with the lowest values of ∼70 s found for other flares. The mechanism for this short capture time may be better understood after analyses of high energy EGRET data that show potential evidence for pion emission near ∼100 MeV
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