37,839 research outputs found

    You No Real Man : Constructing Gender, Sexuality, and the Asian American Subject in Jana Monji\u27s Kim

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    Jana Monji\u27s short story Kim offers a stunning plot twist that challenges readers initial interpretations of the characters as well as many assumptions and stereotypes about Asian American identity, gender, sexuality, and culture. Its pedagogical value for introducing basic literary theory, heterogeneity within gender and sexual identities, and Asian American culture and history is immeasurable. In this essay, I offer an overview of the story, my interpretations of the text, and the pedagogical strategies I use to introduce undergraduate students to concepts that often challenge their world views. Ultimately, this story provides instructors with an accessible and multifaceted text through which to present the basic tenets of gender theory, queer theory, and Asian American culture and history

    Three isoparametric solid elements for NASTRAN

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    Linear, quadratic, and cubic isoparametric hexahedral solid elements have been added to the element library of NASTRAN. These elements are available for static, dynamic, buckling, and heat-transfer analyses. Because the isoparametric element matrices are generated by direct numerical integration over the volume of the element, variations in material properties, temperatures, and stresses within the elements are represented in the computations. In order to compare the accuracy of the new elements, three similar models of a slender cantilever were developed, one for each element. All elements performed well. As expected, however, the linear element model yielded excellent results only when shear behavior predominated. In contrast, the results obtained from the quadratic and cubic element models were excellent in both shear and bending

    An architecture for efficient gravitational wave parameter estimation with multimodal linear surrogate models

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    The recent direct observation of gravitational waves has further emphasized the desire for fast, low-cost, and accurate methods to infer the parameters of gravitational wave sources. Due to expense in waveform generation and data handling, the cost of evaluating the likelihood function limits the computational performance of these calculations. Building on recently developed surrogate models and a novel parameter estimation pipeline, we show how to quickly generate the likelihood function as an analytic, closed-form expression. Using a straightforward variant of a production-scale parameter estimation code, we demonstrate our method using surrogate models of effective-one-body and numerical relativity waveforms. Our study is the first time these models have been used for parameter estimation and one of the first ever parameter estimation calculations with multi-modal numerical relativity waveforms, which include all l <= 4 modes. Our grid-free method enables rapid parameter estimation for any waveform with a suitable reduced-order model. The methods described in this paper may also find use in other data analysis studies, such as vetting coincident events or the computation of the coalescing-compact-binary detection statistic.Comment: 10 pages, 3 figures, and 1 tabl

    Age Differences in Personal Risk Perceptions: A Note on an Exploratory Descriptive Study

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    The authors test for differences in risk perceptions among different age groups

    ARE CROP YIELDS NORMALLY DISTRIBUTED?

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    This paper revisits the issue of crop yield distributions using improved model specifications, estimation and testing procedures that address the methodological concerns raised in recent literature that could have invalidated previous conclusions of yield non-normality. It shows beyond reasonable doubt that some crop yield distributions are non-normal, kurtotic and right or left skewed, depending on the circumstances. A procedure to jointly estimate non-normal farm- and aggregate-level yield distributions with similar means but different variances is illustrated, and the consequences of incorrectly assuming yield normality are explored.Yield non-normality, probability distribution function models, Corn Belt yields, West Texas dryland cotton yields, Crop Production/Industries,
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