1,721,520 research outputs found
The trial of an audience response system to facilitate problem-based learning in legal education
No full textThis chapter provides a case study of how an associate lecturer in the School of Law at the Queensland University of Technology (QUT) used an ARS (ARS) in a lecture for a second year core undergraduate law subject to facilitate problem based learning. It recognizes the positive student response to the use of an ARS and the main benefits, for example, to actively engage students in the learning process, facilitate formative assessment where the students develop initiative and peer relationships, and to provide timely and worthwhile feedback. The chapter also identifies some of the problems that the author faced in the trial and provides some suggested solutions and recommendations. The author hopes to encourage other lecturers to take advantage of an ARS to enhance student learning and identifies some future ARS research opportunities
Symbolic Amplification and Suboptimal Weapons Procurement: Appendix
No full textIn this appendix we provide further detail on the methods we used for recruitment of and data collection from interview participants for this study
The 9th European Symposium on Language for Special Purposes Bergen (Norvège), 6-9 août 1993
No full textBanks David. The 9th European Symposium on Language for Special Purposes Bergen (Norvège), 6-9 août 1993. In: Cahiers de l'APLIUT, volume 13, numéro 2, 1993. Les Langues de spécialité dans le monde. pp. 60-61
Femtosecond laser induced forward transfer techniques for the deposition of nanoscale, intact, and solid-phase material
No full textThe subject of this thesis is the study of the Laser Induced Forward Transfer (LIFT) technique with femtosecond duration pulses. In principle, femtosecond-LIFT should offer a number of advantages over traditional nanosecond-LIFT in terms of achievable resolution and transferring intact and solid phase material.A novel solid phase etching technique that uniquely allows for simultaneous deposition of the etched material, also in solid phase, has been presented. Micron deep holes and trenches have been produced in Si and silica substrates by the generation of large shocks in a thin Cr layer by absorption of femtosecond pulses. The shock initiated the propagation of cracks in the bulk substrates that ultimately lead to etching of whole sections of material
Optimizing the JSM Program
Full text linkSometimes the Joint Statistical Meetings (JSM) is frustrating to attend, because multiple sessions on the same topic are scheduled at the same time. This paper uses seeded Latent Dirichlet Allocation and a scheduling optimization algorithm to very significantly reduce overlapping content in the original schedule for the 2020 JSM program. Specifically, a measure based on total variation distance that ranges from 0 (random scheduling) to 1 (no overlapping content) finds that the original schedule had a score of 0.058, whereas our proposed schedule achieved a score of 0.371. This is a huge improvement that would (1) increase participant satisfaction as measured by the post-JSM satisfaction survey, and (2) save the American Statistical Association significant money by obviating the need for the traditional in-person meeting of the 47 program chairs and other organizers. The methodology developed in this work immediately applies to future JSMs and is easily modified to improve scheduling for any other scientific conference that has parallel sessions
Fluid and gas migration in the North German Basin: fluid inclusion and stable isotope constraints
Full text linkFluid inclusions have been studied in minerals infilling fissures (quartz, calcite, fluorite, anhydrite) hosted by Carboniferous and Permian strata from wells in the central and eastern part of the North German Basin in order to decipher the fluid and gas migration related to basin tectonics. The microthermometric data and the results of laser Raman spectroscopy reveal compelling evidence for multiple events of fluid migration. The fluid systems evolved from a H2O–NaCl±KCl type during early stage of basin subsidence to a H2O–NaCl–CaCl2 type during further burial. Locally, fluid inclusions are enriched in K, Cs, Li, B, Rb and other cations indicating intensive fluid–rock interaction of the saline brines with Lower Permian volcanic rocks or sediments. Fluid migration through Carboniferous sediments was often accompanied by the migration of gases. Aqueous fluid inclusions in quartz from fissures in Carboniferous sedimentary rocks are commonly associated with co-genetically trapped CH4–CO2 inclusions. P–T conditions estimated, via isochore construction, yield pressure conditions between 620 and 1,650 bar and temperatures between 170 and 300°C during fluid entrapment. The migration of CH4-rich gases within the Carboniferous rocks can be related to the main stage of basin subsidence and stages of basin uplift. A different situation is recorded in fluid inclusions in fissure minerals hosted by Permian sandstones and carbonates: aqueous fluid inclusions in calcite, quartz, fluorite and anhydrite are always H2O–NaCl–CaCl2-rich and show homogenization temperatures between 120 and 180°C. Co-genetically trapped gas inclusions are generally less frequent. When present, they show variable N2–CH4 compositions but contain no CO2. P–T reconstructions indicate low-pressure conditions during fluid entrapment, always below 500 bar. The entrapment of N2–CH4 inclusions seems to be related to phases of tectonic uplift during the Upper Cretaceous. A potential source for nitrogen in the inclusions and reservoirs is Corg-rich Carboniferous shales with high nitrogen content. Intensive interaction of brines with Carboniferous or even older shales is proposed from fluid inclusion data (enrichment in Li, Ba, Pb, Zn, Mg) and sulfur isotopic compositions of abundant anhydrite from fissures. The mainly light δ34S values of the fissure anhydrites suggest that sulfate is either derived through oxidation and re-deposition of biogenic sulfur or through mixing of SO 2−4 -rich formation waters with variable amounts of dissolved biogenic sulfide. An igneous source for nitrogen seems to be unlikely since these rocks have low total nitrogen content and, furthermore, even extremely altered volcanic rocks from the study area do not show a decrease in total nitrogen content
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
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