The Cauchy Problem for the Wave Equation in the Schwarzschild Geometry

The Cauchy problem is considered for the scalar wave equation in the Schwarzschild geometry. We derive an integral spectral representation for the solution and prove pointwise decay in time.Comment: 33 page

Studies of Tryptophans in Membrane- Spanning WALP Peptides by Deuterium NMR Spectroscopy

WALP pep tides of sequence acetyl-Gly-Trp-Trp-(Leu-Ala)-Trp-Trp-Ala-ethanolamine insert into lipid bilayers as membrane-spanning a-helices and modulate the lipid phase behavior as functions of n and the lipid acyl chain length. A key feature of the WALP peptides is the positioning of tryptophan (Trp) indole rings at the membrane/water interface. For the examples WALP19 with n = 6.5 and WALP23 with n = 8.5, we have labeled individual indoles with deuterium and incorporated the labeled peptides in oriented, hydrated bilayers of Dimyristoyl-phosphatidylcholine (DMPC). Deuterium NMR spectra from these samples show sharp resonances when the membrane normal is aligned either parallel (Beta = 0°) or perpendicular (Beta = 90°) to the magnetic field. The factor of two reduction in the deuterium quadrupolar splittings when Beta is changed from 0° to 90° indicates rapid molecular rotation about an axis parallel to the membrane normal. The magnitudes and ring assignments of the quadrupolar splittings vary with the position of an indole ring in a WALP sequence and indicate different average ring orientations for different locations in the sequence

He Was The Best of Kings; He Was the Worst of Kings: A Critique of the Literary Presentation of Richard I

In order to achieve a more holistic understanding of Mediterranean History during the Third Crusade, a critical analysis of Richard I is necessary. This paper questions how accurately Richard I was portrayed in literary sources during the Third Crusade and attempts to construct as complete an image of the various motivations that led to differing depictions of Richard I as possible through a critical analysis of literary sources. Focusing on how his actions during the Third Crusade were interpreted, this paper will show the various, often opposing, sentiments held by both Western and Muslim authors on Richard I. Once a comprehensive presentation of the literary representations of Richard I has been established, this paper will question motives behind authors’ characterizations of King Richard in order to create a greater understanding of the politics and cultural biases that were driving forces behind the actions of the Third Crusade and modern interpretation

Regulating Indecency: The Federal Communication Commission’s Threat to the First Amendment

This paper is adapted from a talk given by the author at Duke University School of Law on April 6, 2005. The author argues that the Federal Communication Commission\u27s recent crackdown on television indecency poses a significant threat to First Amendment protections by (1) limiting television viewers\u27 freedom of choice and (2) implying the possibility of punishment for failure to cooperate with the political objectives of the governing party

Listening skills instruction: practical tips for processing aural input

Two listening challenges faced by English L2 learners are (1) successfully identifying words in continuous speech and (2) understanding a speaker’s intended meaning. Listening is a skill L2 learners report wanting to improve, yet teaching practices often fail to advance learner knowledge and control of listening processes. Instructors can benefit from empirically-supported recommendations to help learners parse continuous speech, and discern speaker intent. This Teaching Tip shares two 3-part strategies to facilitate processing utterance content and interpreting message meaning. The practical tips presented here are consistent with a return in the larger TESOL field to a true communicative approach, relying on authentic materials and real communicative contexts rather than mere mimicry of connected speech features or particular intonation contours.Published versio

Combating the Stigmatization of Leprosy: How the first decade of The Star’s publication made the case for romantic relationships and the preservation of domestic life in the Carville Leprosarium

The stigmatization of leprosy has long been acknowledged as one of the primary obstacles to not only effectively treating leprous patients on a physical level, but also achieving their integration and acceptance into society. The Carville Leprosarium, founded as the Louisiana Leper Home in 1894, and the intense ostracism that it institutionalized, demonstrate one of the most influential expressions of this stigma. However, Carville residents were not passive in accepting their fate. The Star, a magazine founded by Stanley Stein and subsequently published in conjunction with his fellow residents, worked to combat such stigma. Building on the work of Heather John, this paper examines the first decade of The Star’s publication, from 1941 to 1951, and specifically explores how the magazine tackled questions of courtship, marriage, and love as these operated within the confines of Carville. By making such topics commonplace and even encouraging the development of romantic relationships, authors of The Star aimed to empower leprous patients to resist Carville’s restrictive regulations. Notably, these regulations included a ban on visitation between patients of opposite sexes and strong discouragement of cohabitation by married couples. Rather than emphasizing differences between leprous patients and the rest of society, publication of The Star in its inaugural years highlighted the similarities between leprous patients and others. Articles in The Star were inspired by, and strove to make widespread, the realization that the destigmatization of leprosy would necessitate granting the same human rights to those within the Carville Leprosarium as those outside its walls

Student Debt and the Class of 2007

Analyzes state-by-state trends in the average debt of 2007 graduates and percentages of graduates with debt. Lists high- and low-debt states and campuses. Interactive map provides campus-by-campus data on tuition and percentage of Pell Grants recipients

Full Jet Reconstruction in 2.76 TeV pp and Pb-Pb collisions in the ALICE experiment

Measurements of the suppression of high-pT particles and the away-side jets from heavy-ion collisions at RHIC have shown that medium-induced energy loss affects partons produced in the early stage of a heavy-ion collision. At LHC energies the initial production cross-section is much higher, which allows jets to be reconstructed with a wide kinematic range. Measuring fully reconstructed jets by taking advantage of the ALICE Electromagnetic Calorimeter allows for a more differential investigation of the parton energy loss. Parton energy loss will allow us to access key observables of the hot, dense matter created in heavy ion collisions. The data presented was collected during the 2.76 TeV Pb-Pb runs, as well as baseline measurements from the 2.76 TeV pp run. The procedures used to reconstruct jets and extract them from a fluctuating background will be discussed. The procedure for quantifying the background with a limited acceptance will also be discussed. These results are compared to pp measurements and simulations.Comment: 4 Pages, Hot Quarks 2012 Proceeding