285 research outputs found

    The Conditions of Discretion: Autonomy, Community, Bureaucracy

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    A Review of The Conditions of Discretion: Autonomy, Community, Bureaucracy/em by Joel F. Handle

    A Simulation Model of Dietary Competition in the Great Smoky Mountains National Park

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    Interactive feeding among a group of vertebrates in the Great Smoky Mountains National Park was simulated. Consumer density, biomass production, consumer consumption rates, and seasonal food habits of adults of each species were calculated using field or literature values. The consumers included the European wild hog, black bear, raccoon, wild turkey, white-tailed deer, three sciurid species, and several rodents. The sciurids and rodents were considered as two respective canonical groups making a total of seven consumer groups. Literature values of requisite parameters from various studies, primarily in the Southeast, were utilized. These values were allowed to vary randomly. Simulations were run for five years at one-half month intervals with a four year comparison period. Mast and fungi were the most limited foods with various fruits also being rare. Grasses, various browse species, roots, blueberry, and animal foods were the most abundant. The European wild hog did not compete with the other consumers even when their population size was doubled. The sciurids were the major competitors. The black bear was the consumer best able to cope with the vicissitudes of life in the Park; however, all consumers gave evidence of being able to usually find enough to eat by relying on alternative foods. Suggestions for future research in the Park and improvements in the model are discussed

    Multiple mechanisms of spiral wave breakup in a model of cardiac electrical activity

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    It has become widely accepted that the most dangerous cardiac arrhythmias are due to re- entrant waves, i.e., electrical wave(s) that re-circulate repeatedly throughout the tissue at a higher frequency than the waves produced by the heart's natural pacemaker (sinoatrial node). However, the complicated structure of cardiac tissue, as well as the complex ionic currents in the cell, has made it extremely difficult to pinpoint the detailed mechanisms of these life-threatening reentrant arrhythmias. A simplified ionic model of the cardiac action potential (AP), which can be fitted to a wide variety of experimentally and numerically obtained mesoscopic characteristics of cardiac tissue such as AP shape and restitution of AP duration and conduction velocity, is used to explain many different mechanisms of spiral wave breakup which in principle can occur in cardiac tissue. Some, but not all, of these mechanisms have been observed before using other models; therefore, the purpose of this paper is to demonstrate them using just one framework model and to explain the different parameter regimes or physiological properties necessary for each mechanism (such as high or low excitability, corresponding to normal or ischemic tissue, spiral tip trajectory types, and tissue structures such as rotational anisotropy and periodic boundary conditions). Each mechanism is compared with data from other ionic models or experiments to illustrate that they are not model-specific phenomena. The fact that many different breakup mechanisms exist has important implications for antiarrhythmic drug design and for comparisons of fibrillation experiments using different species, electromechanical uncoupling drugs, and initiation protocols.Comment: 128 pages, 42 figures (29 color, 13 b&w

    Session 1: Innovation in Legal Services

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    This panel featured two “disrupters” who detailed their experiences innovating in the legal services space. The first panelist spoke about data-driven regulatory reform and the other spoke as an entrepreneur whose product introduces artificial intelligence (AI) into the legal recruiting process. Two additional panelists provided commentary regarding the second panelist’s presentation. The panel provided insight on the topics of: (1) the legal regulatory process at large; (2) how a data-driven and feedback-oriented sandbox provides an alternative regulatory process; (3) the legal hiring and recruiting process and (4) how AI allows law firms to consider alternative hiring metrics when assessing candidates and determining the likelihood of a candidate’s success at the firm. During the commentary, a client of the platform spoke about his experiences with the platform. An expert in legal hiring who has worked both on the academic side as well as with firms, asked additional questions about the platform. In the Q&A portions of each presentation, the panelists addressed questions from symposium organizers and attendees regrading equity and validity of their proposed “disruptions.

    Spatial audio in small display screen devices

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    Our work addresses the problem of (visual) clutter in mobile device interfaces. The solution we propose involves the translation of technique-from the graphical to the audio domain-for expliting space in information representation. This article presents an illustrative example in the form of a spatialisedaudio progress bar. In usability tests, participants performed background monitoring tasks significantly more accurately using this spatialised audio (a compared with a conventional visual) progress bar. Moreover, their performance in a simultaneously running, visually demanding foreground task was significantly improved in the eye-free monitoring condition. These results have important implications for the design of multi-tasking interfaces for mobile devices

    Session 1: Access to Legal Services - The Role of Innovation and Technology

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    This expert panel is addressing access to justice problems. People without access to lawyers and legal services suffer in many ways not limited to divorce, domestic violence, and educational roadblocks. This panel will ask what lawyers can do to help, in what ways can technology help or replace lawyers in the delivery of legal and non-legal services. It will also explore different legal services being offered by individuals who do not have a JD, online firms, and developing technology in a law firm owed subsidiary. There are six panelists who are broken into two categories: (1) the innovation and delivery of legal services; and (2) technology innovation and justice
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