30,689 research outputs found

    PIP: a large solid angle detector for protons and pions

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    A ~1 sr solid angle detector for protons of up to ~200 MeV, and for pions of up to ~250 MeV energy is described. The detector has been developed to provide a charged particle trigger for use in (gamma,2N) and (gamma,piN) experiments with tagged photons at the MAMI-B 850 MeV electron microtron in Mainz. The design is based on a smaller detector previously used at lower energies at the 180 MeV MAMI-A accelerator. Many improvements have been made which will increase the performance of PIP with respect to the earlier detector. Positive pions which are stopped in the detector will be identified by looking for delayed pulses from the e+ in the pion decay chain

    Principles in Patterns (PiP) : Project Evaluation Synthesis

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    Evaluation activity found the technology-supported approach to curriculum design and approval developed by PiP to demonstrate high levels of user acceptance, promote improvements to the quality of curriculum designs, render more transparent and efficient aspects of the curriculum approval and quality monitoring process, demonstrate process efficacy and resolve a number of chronic information management difficulties which pervaded the previous state. The creation of a central repository of curriculum designs as the basis for their management as "knowledge assets", thus facilitating re-use and sharing of designs and exposure of tacit curriculum design practice, was also found to be highly advantageous. However, further process improvements remain possible and evidence of system resistance was found in some stakeholder groups. Recommendations arising from the findings and conclusions include the need to improve data collection surrounding the curriculum approval process so that the process and human impact of C-CAP can be monitored and observed. Strategies for improving C-CAP acceptance among the "late majority", the need for C-CAP best practice guidance, and suggested protocols on the knowledge management of curriculum designs are proposed. Opportunities for further process improvements in institutional curriculum approval, including a re-engineering of post-faculty approval processes, are also recommended

    Principles in Patterns (PiP) : User Acceptance Testing of Course and Class Approval Online Pilot (C-CAP)

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    The PiP Evaluation Plan documents four distinct evaluative strands, the first of which entails an evaluation of the PiP system pilot (WP7:37 – Systems & tool evaluation). Phase 1 of this evaluative strand focused on the heuristic evaluation of the PiP Course and Class Approval Online Pilot system (C-CAP) and was completed in December 2011. Phase 2 of the evaluation is broadly concerned with "user acceptance testing". This entails exploring the extent to which C-CAP functionality meets users' expectations within specific curriculum design tasks, as well as eliciting data on C-CAP's overall usability and its ability to support academics in improving the quality of curricula. The general evaluative approach adopted therefore employs a combination of standard Human-Computer Interaction (HCI) approaches and specially designed data collection instruments, including protocol analysis, stimulated recall and pre- and post-test questionnaire instruments. This brief report summarises the methodology deployed, presents the results of the evaluation and discusses their implications for the further development of C-CAP

    The view from Fortingall: the worlds of the Book of the Dean of Lismore

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    Theory of winds in late-type evolved and pre-main-sequence stars

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    Recent observational results confirm that many of the physical processes which are known to occur in the Sun also occur among late-type stars in general. One such process is the continuous loss of mass from a star in the form of a wind. There now exists an abundance of either direct or circumstantial evidence which suggests that most (if not all) stars in the cool portion of the HR diagram possess winds. An attempt is made to assess the current state of theoretical understanding of mass loss from two distinctly different classes of late-type stars: the post-main-sequence giant/supergiant stars and the pre-main-sequence T Tauri stars. Toward this end, the observationally inferred properties of the wind associated with each of the two stellar classes under consideration are summarized and compared against the predictions of existing theoretical models. Although considerable progress has been made in attempting to identify the mechanisms responsible for mass loss from cool stars, many fundamental problems remain to be solved

    Proofs of the fundamental theorem of algebra

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    Thesis (M.A.)--Boston University, 1929. This item was digitized by the Internet Archive

    Digital libraries and information literacy issues within virtual learning environments : an e-learning impasse?

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    The DIDET digital library and VLE approach places much of the responsibility for managing the digital library work flow into the hands of students, as well as academics and librarians. Student responsibilities include the application of metadata, as well as conventional information literacy competencies such as ascertaining information resource provenance, investigating intellectual property rights and/or digital rights management implications, before depositing digital resources within the library. This has obviously laid bare numerous research issues relating to future digital library and VLE design, student information literacy, the use of ICT in education and design, and related pedagogical issues, all of which are worthy of further investigation within the UK HE community and will be elucidated in this paper. More importantly, this paper will argue that such a model signifies a definite impasse in the evolution of e-learning models and questions the degree to which current information literacy models are effective in specific e-learning contexts. The paper will conclude by further recognising that greater student information literacy skills are necessary to unlock the potential of such radical approaches to e-learning and digital library creation

    Library systems: the trends, the developments, the future

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    This article introduces some of the latest developments and trends taking place with respect to library systems, and makes some informed judgements on what the future holds
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