Tapping into the Potential of Peer Tutors

13-16 July 2002 A challenge facing all medical schools is how to ensure that all students have the skills they need to cope with the demands of their curriculum. Computer literacy is no longer optional - all students from day one need to be able to communicate by email, look up information about the timetable on the intranet, and use an elibrary. As well as they are expected to use standard software to prepare assignments, projects, and group presentation. For the past four years we have run a highly successful peer tutoring project to ensure that those who arrive without the necessary skills have the support they require. This paper will report on the methods (how we recruit and train the peer tutors and how we identify those who need help, how we deliver the training), the costs and the outcomes. We now have data on the IT skills of 1,5000 students

Rule 10b-5: Birth of the Concept of Market Insider and Its Application in a Criminal Case - United States v. Chiarella

This Note examines the necessity of the expansion of the market insider by the Second Circuit Court of Appeals in United States v. Chairella. It goes on to analyze whether or not the criminal conviction under Rule 10b-5 of Chiarella was appropriate given the lack of notice

The Rise of the Austrian Freedom Party in the 1990s: A Culturalist Approach

NoDer Beitrag gibt einen Überblick über unterschiedliche wissenschaftliche Erklärungsansätze zum bemerkenswerten Aufstieg der FPÖ Jörg Haiders in den 1990er Jahren. Daran anschließend werden einige kulturelle und historische Aspekte, die von anderen Ansätzen nicht beachtet wurden, welche aber einen wesentlichen politischen Hintergrund für Haiders Erfolg bildeten, beleuchtet. Es wird argumentiert, dass die FPÖ eine ausgesprochen erfolgreiche Strategie verfolgte, indem sie ein auf traditionellen und antimodernen Werten basierendes österreichisches Identitätskonzept (re-)konstruierte. Besonders deutlich wurde dies im aggressiven ¿Kulturkampf¿, den die FPÖ gegen KünstlerInnen und Personen des kulturellen Lebens Mitte der neunziger Jahre führte. Haiders Version des rechten Populismus erwies sich deswegen als besonders erfolgreich, weil sie einen in der österreichischen Gesellschaft nach 1945 stark verankerten Parochialismus politisch zu instrumentalisieren vermochte

The potential for super-Nyquist asteroseismology with TESS

The perfect 30-min cadence of the full-frame images from the Transiting Exoplanet Survey Satellite (TESS) will impose a hard Nyquist limit of 24 d$^{-1}$ ($\approx 278$ $\mu$Hz). This will be problematic for asteroseismology of stars with oscillation frequencies at or around that Nyquist limit, which will have insurmountable Nyquist ambiguities. TESS does offer some observing slots at shorter cadences, but these will be limited in number and competitive, while the full frame images will be the main data product for many types of variable stars. We show that the Nyquist ambiguities can be alleviated if, when TESS resumes observations after a downlink, integrations are not resumed at perfect cadence with those before the downlink. The time spent idling before integrations are resumed need only be around five minutes for satisfactory results, and observing time can be recouped from the downlink event if the telescope does not wait for a return to perfect cadence before resuming integrations. The importance of imperfect cadence after downlink is discussed in light of phase coverage of transit events.Comment: 7 pages; 9 figures, all of which use colour but have been checked for readability under grey-scale printing; 2 small tables; accepted for publication in MNRA

Kepler Fourier concepts: The performance of the Kepler data pipeline

Given the extreme precision attainable with the Kepler Space Telescope, the mitigation of instrumental artefacts is very important. In an earlier paper (Murphy 2012), the characteristics of Kepler data were discussed in light of their effect on asteroseismology. We continue this discussion now that data processed with the new PDC-MAP pipeline are publicly available; users should use the latest data reductions available at the Mikulski Archive for Space Telescopes (MAST), not just for PDC, but also for improvements in the attached meta-data. We discuss the injection of noise in the frequency range 0-24 c/d (up to ~277 {\mu}Hz) by the PDC-LS pipeline into ~15 per cent of light-curves.Comment: 4 pages, 7 figures of which 4 are colour. On material presented at the conference "The Modern Era of Helio- and Asteroseismology" held at Obergurgl, Austria, May 2012. Published in AN (Volume 333, Issue 10, Pages 1057-1060

Temperature effects on material characteristics

Some of the physical properties of the main elements of interest in high temperature technology are reviewed. Some general trends emerge when these properties are viewed as a function of melting point, but there are a few notable exceptions. Titanium, zirconium, niobium and tantalum all have disappointingly low moduli; chromium is excellent in many ways, but has a limited ductility at lower temperatures; molybdenum oxidises catastrophically above about 700° C, and niobium suffers from severe oxygen embrittlement. Beryllium and carbon (in the graphitic form) both stand out as exceptional materials, both have very low densities, beryllium a very high modulus but an unfortunately low ductility, while graphite has a relatively low strength at the lower temperatures, although at temperatures of 2000° C and above it emerges as a quite exceptional (and probably as the ultimate) high temperature material. Some of the fundamental factors involved in high temperature material development are examined, in the light, particularly, of past progress with the nickel alloys. If a similar progress can be achieved with other base elements then a considerable margin still remains to be exploited. Protection from oxidation at high temperatures is evidently a factor of major concern, not only with metals, but with graphite also. Successful coatings are therefore of high importance and the questions they raise, such as bonding, differential thermal expansion, and so on, represent aspects of an even wider class covered by the term “composite structures". Such structures appear to offer the only serious solution to many high temperature requirements, and their design, construction and utilization has created a whole series of new exercises in materials assessment. Matters have become so complex, that a very radical and fundamental reassessment is required if we are to change, in any very significant way, the wasteful and ad hoc methods which characterise so much of present-day materials engineering