1,087 research outputs found

    When the State Tries to See Like a Family: Cultural Pluralism and the Family Group Conference in New Zealand

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    In 1989 New Zealand legislators revised their child welfare legislation, partially in response to M¯aori and Pacific Island critiques that the previous state-centered regime had failed to take into account their culturally distinctive techniques for being a family and had failed to support culturally specific practices of decision making and conflict resolution. Legislators instituted a new and increasingly popular form of alternative dispute resolution—the family group conference—in an attempt to create a bureaucratic response to family dysfunction that was capacious enough to allow for any and every family’s involvement. In the process, however, they continued to understand what counts as a family along nuclear family lines. Against the New Zealand lawmakers’ assumptions, this article illustrates how, in the context of transnational migration, Samoan families experience tensions between the nuclear family unit that lawmakers envision and their lived extended kinship groups. As extended families, Samoan migrant families’ goal is not to produce socially productive citizens for the nation-state, but rather to produce a transnational family reputation. Thus, despite the legislators’ efforts to create culturally sensitive forms for family conflict resolution, Samoan social workers and community counselors had to translate the legislative act for Samoan families, negotiating and managing the conflicting presuppositions of what it means to be a nuclear family embedded in the act and what it means to be an extended family for Samoans

    Adaptive isocurves based rendering for freeform surfaces

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    Journal ArticleFreeform surface rendering is traditionally performed by approximating the surface with polygons and then rendering the polygons. This approach is extremely common because of the complexity in accurately rendering the surfaces directly. Recently, several papers presented methods to render surfaces as sequences of isocurves. Unfortunately, these methods start by assuming that an appropriate collection of isocurves has already been derived. The algorithms themselves neither automatically create an optimal or almost optimal set of isocurves so t h e whole surface would be correctly rendered without having pixels redundantly visited nor automatically compute the parameter spacing required between isocurves to guarantee such coverage. In this paper, a new algorithm is developed to fill these needs. An algorithm is introduced that automatically computes a set of almost optimal isocurves covering the entire surface area. This algorithm can be combined with a fast curve rendering method, to make surface rendering without polygonal approximation practical

    Hidden curve removal for free form surfaces

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    Journal ArticleThis paper describes a hidden curve algorithm specifically designed for sculptured surfaces. A technique is described to extract the visible curves for a given scene without the need to approximate the surface by polygons. This algorithm produces higher quality results than polygon based algorithms, as most of the output set has an exact representation. Surface coherence is used to speed up the process. Although designed for sculptured surfaces, this algorithm is also suitable for polygonal data

    Second order surface analysis using hybrid symbolic and numeric operators

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    Journal ArticleResults from analyzing the curvature of a surface can be used to improve the implementation, efficiency, and effectiveness of manufacturing and visualization of sculptured surfaces. In this paper, we develop a robust method using hybrid symbolic and numeric operators to create trimmed surfaces each of which is solely convex, concave, or saddle and partitions the original surface. The same method is also used to identify regions whose curvature lies within prespecified bounds

    Adaptive isocurves based rendering for freeform surfaces

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    technical reportFreeform surface rendering is traditionally performed by approximating the surface with polygons and then rendering the polygons This approach is extremely common because of the complexity in accurately rendering the surfaces directly Recently?? several papers presented methods to render surfaces as sequences of isocurves Unfortunately?? these methods start by assuming that an appropriate collection of isocurves has already been derived The algorithms themselves neither automatically create an optimal or almost optimal set of isocurves so the whole surface would be correctly rendered without having pixels redundantly visited nor automatically compute the parameter spacing required between isocurves to guarantee such coverage In this paper?? a new algorithm is developed to ll these needs An algorithm is introduced that automat ically computes a set of almost optimal isocurves covering the entire surface area This algorithm can be combined with a fast curve rendering method?? to make surface rendering without polygonal approximation practica

    Teaching Television Production in the Age of YouTube

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    In this paper, we offer an examination of why traditional television producation pedagogy remains congent into the second decade of the 21st century. The shift to smaller distribution platforms and the democratization of television distribution through YouTube will cuase production teachers to shift emphases in their overall approach. Our thesis is that regardless of the delivery device, composition, the grammar of television and story structure still matter. Teachers of the art and craft of television production routinely deal with a paradox; specifically, prepping their students for the future while adhering to their own educational and professional training that is often deeply rooted in the past. For decades, educators updated knowledge and upgraded skill levels by attending conferences and symposia, doing their own production work, and/or periodically re-immersing themselves in professional environments. New production technologies, practices and workflows have continually evolved but with some effort, teachers have always been able to keep their knowledge and skill bases current. Keeping pace with hardware has een a different tale. While industry trade shows have always tantalized attendees with the newest and coolest of technologies, collegiate budget lines have historically been guided by many things other than the need to be on the cutting edge.This has not helped college keep pace with ever-escalating changes in technology and equipment. As a result, teaching at the collegiate level has historically meant working in under-resourced facilities, with equipment and technologies just slightly behind those used in the professional world. Despite constant technological changes, however, it could be argued that the basic television production pedagogy learned in the last decades of the 20th century has remained relatively unchanged, viable and applicable well into the first decade of the 21st. As we enter the digital age, television production proccesses and workflows have undergone a shift of tectonic proportions, and that raises questions about the methodology and information necessary to now teach it. Optimistically, television production can still be taught the same it has always been, with updated information regarding digital production and distribution technologies, as well as mobile and social-media distribution outlets. But in order to succeed in the digital world enveloping them, educators will likely have to make some changes in how they approach teaching. And that will include understanding how the cultural terrain has changed for television production students, as well

    Nonradiative interaction and entanglement between distant atoms

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    We show that nonradiative interactions between atomic dipoles placed in a waveguide can give rise to deterministic entanglement at ranges much larger than their resonant wavelength. The range increases as the dipole-resonance approaches the waveguide's cutoff frequency, caused by the giant density of photon modes near cutoff, a regime where the standard (perturbative) Markov approximation fails. We provide analytical theories for both the Markovian and non-Markovian regimes, supported by numerical simulations, and discuss possible experimental realizations.Comment: 9 pages, 2 figure

    Current in vivo models of varicella-zoster virus neurotropism

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    © 2019 by the authors. Licensee MDPI, Basel, Switzerland. Varicella-zoster virus (VZV), an exclusively human herpesvirus, causes chickenpox and establishes a latent infection in ganglia, reactivating decades later to produce zoster and associated neurological complications. An understanding of VZV neurotropism in humans has long been hampered by the lack of an adequate animal model. For example, experimental inoculation of VZV in small animals including guinea pigs and cotton rats results in the infection of ganglia but not a rash. The severe combined immune deficient human (SCID-hu) model allows the study of VZV neurotropism for human neural sub-populations. Simian varicella virus (SVV) infection of rhesus macaques (RM) closely resembles both human primary VZV infection and reactivation, with analyses at early times after infection providing valuable information about the extent of viral replication and the host immune responses. Indeed, a critical role for CD4 T-cell immunity during acute SVV infection as well as reactivation has emerged based on studies using RM. Herein we discuss the results of efforts from different groups to establish an animal model of VZV neurotropism

    Non-Markovian control of qubit thermodynamics by frequent quantum measurements

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    We explore the effects of frequent, impulsive quantum nondemolition measurements of the energy of two-level systems (TLS), alias qubits, in contact with a thermal bath. The resulting entropy and temperature of both the system and the bath are found to be completely determined by the measurement rate, and unrelated to what is expected by standard thermodynamical rules that hold for Markovian baths. These anomalies allow for very fast control of heating, cooling and state-purification (entropy reduction) of qubits, much sooner than their thermal equilibration time.Comment: 8 pages, 9 figure
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