Malice and the Ridiculous as Self-ignorance: A Dialectical Argument in Philebus 47d-50e

Abstract: In the Philebus, Socrates constructs a dialectical argument in which he purports to explain to Protarchus why the pleasure that spectators feel when watching comedy is a mixture of pleasure and pain. To do this he brings in phthonos (malice or envy) as his prime example (47d-50e). I examine the argument and claim that Socrates implicitly challenges Protarchus’ beliefs about himself as moderate and self-knowing. I discuss two reasons to think that more is at stake in the argument than the mixed pleasure and pain of comic malice

Variability in Exposure to Subspecialty Rotations During Orthopaedic Residency: A Website-based Review of Orthopaedic Residency Programs.

IntroductionThe variability in exposure to various subspecialty rotations during orthopaedic residency across the United States has not been well studied.MethodsData regarding program size, resident's sex, department leadership, university-based status of the program, outsourcing of subspecialty rotation, and geographic location were collected from websites of 151 US allopathic orthopaedic residency programs. The relationship of these factors with the time allotted for various clinical rotations was analyzed.ResultsThe number of residents in a program correlated positively with time allocated for elective rotations (r = 0.57, P = 0.0003). Residents in programs where the program director was a general orthopaedic surgeon spent more time on general orthopaedic rotations (22 versus 9.9 months, P = 0.001). Programs where the program director or chairman was an orthopaedic oncologist spent more time on oncology rotations ([3.8 versus 3 months, P = 0.01] and [3.5 versus 2.7 months, P = 0.01], respectively). Residents in community programs spent more time on adult reconstruction than university-based programs (6.6 versus 5.5 months, P = 0.014). Based on multiple linear regression analysis, time allotted for adult reconstruction (t = 2.29, P = 0.02) and elective rotations (t = 2.43, P = 0.017) was positively associated with the number of residents in the program.ConclusionsSubstantial variability exists in the time allocated to various clinical rotations during orthopaedic residency. The effect of this variability on clinical competence, trainees' career choices, and quality of patient care needs further study

Imaging the Solar Tachocline by Time-Distance Helioseismology

The solar tachocline at the bottom of the convection zone is an important region for the dynamics of the Sun and the solar dynamo. In this region, the sound speed inferred by global helioseismology exhibits a bump of approximately 0.4% relative to the standard solar model. Global helioseismology does not provide any information on possible latitudinal variations or asymmetries between the Northern and Southern hemisphere. Here, we develop a time-distance helioseismology technique, including surface- and deep-focusing measurement schemes and a combination of both, for two-dimensional tomographic imaging of the solar tachocline that infers radial and latitudinal variations in the sound speed. We test the technique using artificial solar oscillation data obtained from numerical simulations. The technique successfully recovers major features of the simplified tachocline models. The technique is then applied to SOHO/MDI medium-l data and provides for the first time a full two-dimensional sound-speed perturbation image of the solar tachocline. The one-dimensional radial profile obtained by latitudinal averaging of the image is in good agreement with the previous global helioseismology result. It is found that the amplitude of the sound-speed perturbation at the tachocline varies with latitude, but it is not clear whether this is in part or fully an effect of instrumental distortion. Our initial results demonstrate that time-distance helioseismology can be used to probe the deep interior structure of the Sun, including the solar tachocline.Comment: accepted for publication by Ap

Inherited crustal deformation along the East Gondwana margin revealed by seismic anisotropy tomography

Acknowledgments We thank Mallory Young for providing phase velocity measurements in mainland Australia and Tasmania. Robert Musgrave is thanked for making available his tilt-filtered magnetic intensity map. In the short term, data may be made available by contacting the authors (S.P. or N.R.). A new database of passive seismic data recorded in Australia is planned as part of a national geophysics data facility for easy access download. Details on the status of this database may be obtained from the authors (S.P., N.R., or A.M.R.). There are no restrictions on access for noncommercial use. Commercial users should seek written permission from the authors (S.P. or N.R.). Ross Cayley publishes with the permission of the Director of the Geological Survey of Victoria.Peer reviewedPublisher PD

Seismic arrival enhancement through the use of noise whitening

A constant feature in seismic data, noise is particularly troublesome for passive seismic monitoring where noise commonly masks microseismic events. We propose a statistics-driven noise suppression technique that whitens the noise through the calculation and removal of the noise’s covariance. Noise whitening is shown to reduce the noise energy by a factor of 3.5 resulting in microseismic events being observed and imaged at lower signal to noise ratios than originally possible - whilst having negligible effect on the seismic wavelet. The procedure is shown to be highly resistant to most changes in the noise properties and has the flexibility of being used as a stand-alone technique or as a first step before standard random noise attenuation methods

Magical Beliefs of Hindus

Master of Arts (MA

Neuroligin-1 knockdown reduces survival of adult-generated newborn hippocampal neurons

Survival of adult-born hippocampal granule cells is modulated by neural activity, and thought to be enhanced by excitatory synaptic signaling. Here, we report that a reduction in the synaptogenic protein neuroligin-1 in adult-born neurons in vivo decreased their survival, but surprisingly, this effect was independent of changes in excitatory synaptic function. Instead, the decreased survival was associated with unexpected changes in dendrite and spine morphology during granule cell maturation, suggesting a link between cell growth and survival

Multimodal Composing Across Disciplines: Examining Community College Professors’ Perceptions of Twenty-First Century Literacy Practices

Providing a close examination of how professors approach twenty-first century literacy practices and production of multimodal texts, this project focuses on community college professors’ perceptions and expectations of students’ composing abilities pertaining to academic discourse across disciplines. Participants included 24 professors from a variety of disciplines at a large community college. The project examined survey responses, assignment guidelines, course syllabi, course outcomes, and video interviews of five of the 24 participants. Video interviews provided greater insight into participants’ perceptions and expectations. Additionally, research questions targeted course and assignment design, course outcomes, and assessment practices. Data findings suggest that despite access to technology, increased availability of mobile devices (for both instructors and students), and ample information technology support, student production of multimodal texts is occurring minimally at the site in question. Participants appear to struggle with meeting course outcomes and addressing course content when attempting to integrate modes other than written or alphabetic; therefore, they do not actively pursue a multimodal pedagogy. Recognizing the value of integrating digital technologies into course and assignment designs is often challenging for community college instructors who might struggle with understanding the technologies available to them or who do not possess the skills or time to develop technologically advanced courses. However, literacy practices today include producing texts in written, visual, aural or digital modes, all of which encourage the use of digital technologies and production of multimodal texts. Most recent scholarship has not fully examined whether making meaning of and producing multimodal texts is congruent with academic discourse in a community college setting. Indeed, community colleges enroll “43% (7.5 million credit students) of the postsecondary education student population, yet they continue to be the most understudied” (Kater & Levin, 2013, p. ix). Reporting on faculty perceptions across disciplines, this study provides a valuable analysis of the challenges community college professors confront and confirms an interest in developing a multimodal pedagogy, but recognizes that resistance occurs due to limitations in time and ensuring alignment with course outcomes