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

Point interactions in acoustics: one dimensional models

A one dimensional system made up of a compressible fluid and several mechanical oscillators, coupled to the acoustic field in the fluid, is analyzed for different settings of the oscillators array. The dynamical models are formulated in terms of singular perturbations of the decoupled dynamics of the acoustic field and the mechanical oscillators. Detailed spectral properties of the generators of the dynamics are given for each model we consider. In the case of a periodic array of mechanical oscillators it is shown that the energy spectrum presents a band structure.Comment: revised version, 30 pages, 2 figure

Andreas-Holger Maehle, Contesting Medical Confidentiality, Origins of the Debate in the United States, Britain and Germany

No abstract available

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

GEOL 112: Hazards, Risks of Earthquakes and Volcanoes Textbook Alternatives

Poster summarizing cost saving textbook alternatives for GEOL 112: Hazards, Risks of Earthquakes and Volcanoes.https://scholarworks.sjsu.edu/davinci_tap2014/1005/thumbnail.jp

Regularity of Bound States

We study regularity of bound states pertaining to embedded eigenvalues of a self-adjoint operator $H$, with respect to an auxiliary operator $A$ that is conjugate to $H$ in the sense of Mourre. We work within the framework of singular Mourre theory which enables us to deal with confined massless Pauli-Fierz models, our primary example, and many-body AC-Stark Hamiltonians. In the simpler context of regular Mourre theory our results boils down to an improvement of results obtained recently in \cite{CGH}.Comment: 70 page

Drawing Lines: Racial Gerrymandering in Bethune-Hill v. Virginia Board of Elections

In Bethune-Hill v. Virginia Board of Elections, the Supreme Court had to decide whether twelve Virginia challenged legislative districts, in which a one-size-fits-all 55% black voting age population floor was imposed, withstood constitutional scrutiny. The Court, though stating that the lower court misapplied precedent, declined to hold that race predominated in the formation of the districts and that strict scrutiny would be triggered, instead remanding to the lower court for reexamination. This commentary argues that the Court missed an opportunity to hold that a 55% BVAP floor prioritized above all else is per se racial predomination, and such a holding would be justified by serious policy goals

Inclusive jet spectra in 2.76 TeV collisions from ALICE

Measurements of high-pT particle production in heavy-ion collisions at RHIC have shown that medium-induced energy loss affects the partons produced in the early stage of a heavy-ion col- lision. The increased initial production cross section for partons at LHC energies makes fully reconstructed jets available in a wide kinematic range, which allows for a more differential in- vestigation of parton energy loss. Partonic energy loss allows us to access key observables of the hot deconfined nuclear matter produced in heavy-ion collisions. The inclusive cross-section of reconstructed jets using the ALICE tracking detectors and electromagnetic calorimeter is pre- sented from data collected during the 2.76 TeV pp runs. The procedures used to reconstruct jets and extract them from a fluctuating background in Pb-Pb collisions are discussed.Comment: 4 pages, 3 figures, proceedings from Quark Matter 2012 at Washington D