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Effects of Dual-Frequency Environment Exploration on Stiffness Discrimination Thresholds
Get PDFPreviously, excitation frequency has been found to alter perceptual discrimination thresholds of stiffness, mass, and damping. Here, we explore how the blending of two frequencies could affect the just noticeable difference for stiffness. In a perceptual experiment based on the method of adjustments, we tested participants’ ability to match a reference stiffness moving at combinations of two frequencies to explore the effects on stiffness discrimination. As more of the lower frequency was added, participants’ ability to accurately match the reference was hampered. Results suggest that as two frequencies are excited, the resulting perceptual thresholds are blended between the levels for the individual frequencies
LGBTQ Emerging Adults and COVID-19
Get PDFEmerging LGBTQ adults experience a period of major developmental milestones complicated by multiple marginalizations, and now, a global pandemic that has disrupted the social world. Both emerging adulthood and the COVID-19 pandemic are short but intense periods occurring concurrently for young people at this time, and both factors influence the spheres of housing, family, school, and friends for LGBTQ emerging adults in this study. Emerging adults are at particular risk of being negatively affected by the ways the pandemic has altered their life course and social world, and LGBTQ emerging adults are even more at risk due to their marginalized identities. While some LGBTQ emerging adults were negatively affected by the challenges and disruptions posed by the pandemic, others saw improvements in their family relationships or housing situations during this time. Qualitative interview data indicates that the COVID-19 pandemic complicates life transitions and events for LGBTQ emerging adults, who are uniquely positioned between newfound independence as emerging adults and extended dependence on their families and caregivers
Explorations in Distributed Ray Tracing and Photometry of Large Scenes
Get PDFThis work encapsulates three explorations into different implementations of distributed ray tracing, that is to say, ray tracing that has been distributed across multiple machines. Our goals lie in the rendering of scenes with more geometry than can fit within the memory of a single computer, so we focus on the distribution of memory. Ultimately, this work discusses a Spark standard (or classical) distributed ray tracer, a Spark photometric distributed ray tracer, and a single-machine Akka Typed photometric ray tracer with some basis for future distribution. Individual timing results for each ray tracer are included, but they cannot be compared due to differences in their generation. Qualitative comparisons between the ray tracers and their approaches are made, and recommendations are given to future researchers in this niche
Light and Time in the Narrative Fiction Film
No full textThis article turns to the ideas of Paul Ricœur to develop an account of film lighting grounded in the theory of narrative as temporal experience. Narrative films structure lighting as an unfolding configuration, pointing forward and back in time. When we interpret a film’s lighting as part of such a configuration, experiences of memory and expectation enrich our attention to the image before us. The narrative power of lighting rests in its ability to create this experience of a threefold present. Examples draw from a range of films, including Umberto D. (Vittorio De Sica, 1952), Apocalypse Now Redux (Francis Ford Coppola, 2001), and Mudbound (Dee Rees, 2017)
Connecting Students to Community: Engaging Students Through Course Embedded Service-Learning Activities
No full textHigher education can be a transformative experience for students by enhancing interpersonal skills and increasing social awareness of needs within their community to impact philanthropic development. Service-learning activities embedded in courses provide one avenue to integrate academics, the profession, and the community. This study analyzes two service-learning projects: a semester long endeavor and an activity completed in a single class period. Survey results indicate that students believe business curricula should prepare graduates to be civic leaders as well as business leaders and analysis suggests that those students who are involved in a semester long project compared to a single class project have a stronger view of business school\u27s role in the development of civic mindedness. We find evidence that incorporating service learning within a single class period is beneficial to students\u27 perception of engagement in the course and the community, even more so when the service-learning activities are semester long as compared to a single class. Regression results provide evidence that incorporating a semester long service-learning activity has a significantly greater impact on students\u27 self-efficacy toward service compared to a single class activity. Even one course during a semester can make a significant difference in student\u27s self-efficacy toward service
Making an Inclusive Collective Party or Building LGBTQ+ Community? Tensions in LGBTQ Festival Events in American Mardi Gras
No full textSmall-scale festival events run by the lesbian, gay, bisexual, transgender, and queer (LGBTQ) community that are part of larger urban festivals like Mardi Gras are often pulled in two conflicting directions. There is pressure on these events to be inclusive collective parties that support heterosexual attendees. Also, LGBTQ events are an important site for developing community cohesiveness and solidarity, which may be hampered by too much heterosexual attendance. This article analyzes the tensions between these two (at times) conflicting aims during small-scale LGBTQ festival events in Mobile, Alabama
Visual Documentation for Barnett Newman’s Curatorial Projects, 1944-1946 PART II: Commentary and Assessment
Get PDFThe article discusses visual documentation for American artist Barnett Newman\u27s curatorial projects, 1944-1946. Topics include two exhibitions curated by Barnett Newman, Pre-Columbian Stone Sculpture and Northwest Coast Indian Painting; drawing using brush and ink on paper by Newman and double-faced wolf mask; and how Newman\u27s embodied identification with the art of pre-Hispanic and Indigenous American Indian art, as represented in his drawing and in his portrait photograph
Vlast\u27 i Vlist\u27 Power and Influence: LGBT Violence in Chechnya and Activist Responses
Get PDFIn my research I provide a genealogy of the LGBT violence in Chechnya that began in 2017. Beginning in the Soviet period, when sexual citizenship entered public discourses, and through the post-Soviet period. I turn to Diane Richardson’s theory of sexual citizenship and Bert Kulpa and Anna Mizielinska’s writings on contemporary peripheries to approach sexual citizenship in Russia and the Caucasus with a critical lens that decenters Western perspectives. I provide a historical primer on the imperial relationship between Russia and Chechnya in order to further explain how imperial dynamics impact sexual citizenship. I turn to LGBT activism since the fall of the Soviet Union to illustrate how activists are forced to contend with narratives of traditionalism based in the conservative Russian imaginary. I interviewed two LGBT Russian activists who connect state homophobia in Chechnya to larger problems of homophobia and injustice in Russia and globally. These Russian activists must contend with their role as a member of an imperial nation, while also navigating their own persecution by their state and violent homophobes
Mi estilo lo confirma letra por letra : La literatura criminal en El Niño Proletario de Osvaldo Lamborghini
Get PDFEl presente ensayo examina el discurso del narrador en el cuento “El niño proletario” de Osvaldo Lamborghini como una reflexión ideológica sobre la complicidad entre literatura y violencia. Mediante la inspección del estilo lingüístico del narrador asesino, este trabajo propone que el cuento de Lamborghini presenta la escritura como una forma de expresión vinculada a la violencia y acusa a la tradición literaria hispanoamericana, específicamente al naturalismo y al modernismo, de participar en la violencia social que el relato denuncia. De esta manera, el sustrato ideológico del cuento de Lamborghini va más allá del desmonte de la tradicional dicotomía civilización-barbarie, al presentar un comentario acerca del rol de la literatura y el letrado en la violencia social. Con ello, “El niño proletario” se inscribe dentro de una tradición de ‘grafofobia’ en la narrativa latinoamericana moderna que, como explica Aníbal González, ve con recelo el poder de la palabra escrita y de la cultura letrada
Evidence for a Semisolid Phase State of Aerosols and Droplets Relevant to the Airborne and Surface Survival of Pathogens
Get PDFThe phase state of respiratory aerosols and droplets has been linked to the humidity-dependent survival of pathogens such as SARS-CoV-2. To inform strategies to mitigate the spread of infectious disease, it is thus necessary to understand the humidity-dependent phase changes associated with the particles in which pathogens are suspended. Here, we study phase changes of levitated aerosols and droplets composed of model respiratory compounds (salt and protein) and growth media (organic-inorganic mixtures commonly used in studies of pathogen survival) with decreasing relative humidity (RH). Efflorescence was suppressed in many particle compositions and thus unlikely to fully account for the humidity-dependent survival of viruses. Rather, we identify organic-based, semisolid phase states that form under equilibrium conditions at intermediate RH (45 to 80%). A higher-protein content causes particles to exist in a semisolid state under a wider range of RH conditions. Diffusion and, thus, disinfection kinetics are expected to be inhibited in these semisolid states. These observations suggest that organic-based, semisolid states are an important consideration to account for the recovery of virus viability at low RH observed in previous studies. We propose a mechanism in which the semisolid phase shields pathogens from inactivation by hindering the diffusion of solutes. This suggests that the exogenous lifetime of pathogens will depend, in part, on the organic composition of the carrier respiratory particle and thus its origin in the respiratory tract. Furthermore, this work highlights the importance of accounting for spatial heterogeneities and time-dependent changes in the properties of aerosols and droplets undergoing evaporation in studies of pathogen viability