A survey of announcement effects on foreign exchange returns

Researchers have long studied the reaction of foreign exchange returns to macroeconomic announcements in order to infer changes in policy reaction functions and foreign exchange micro­structure, including the speed of market reaction to news and how order flow helps impound public and private information into prices. These studies have often been disconnected, however; and this article critically reviews and evaluates the literature on announcement effects on foreign exchange returns.Foreign exchange

Mesoscopic dynamical differences from quantum state preparation in a Bose-Hubbard trimer

Conventional wisdom is that quantum effects will tend to disappear as the number of quanta in a system increases, and the evolution of a system will become closer to that described by mean field classical equations. In this letter we combine newly developed experimental techniques to propose and analyse an experiment using a Bose-Hubbard trimer where the opposite is the case. We find that differences in the preparation of a centrally evacuated trimer can lead to readily observable differences in the subsequent dynamics which increase with system size. Importantly, these differences can be detected by the simple measurements of atomic number.Comment: 5 pages, 4 figures, theor

INTIMATE INDIGENEITIES: ASPIRATIONAL AFFECTIVE SOLIDARITY IN 21\u3csup\u3eST\u3c/sup\u3e CENTURY INDIGENOUS MEXICAN REPRESENTATION

This dissertation analyzes six contemporary texts (2008–18) that represent indigenous Mexicans to transnational audiences. Despite being disparate in authorship, genre, and mode of presentation, all address the failings of the Mexican state discourse of mestizaje that exalts indigenous antiquities while obfuscating the racialized socioeconomic hierarchies that marginalize contemporary indigenous peoples. Casting this conflict synecdochally as the national imposing itself on quotidian life, the texts help the reader/viewer come to understand it in personal, affective terms. The audience is encouraged to identify with how it feels to exist in a space where, paradoxically, the interruption of everyday life has become the status quo. Questioning the status quo by appealing to international audiences, these texts form a contestatory current against state mestizaje within the same transnational networks of legitimation employed in the 19th and 20th centuries to promote it. In this way, the texts work to build political solidarity via affective means in order to promote and propagate in the popular discourse a questioning how the Mexican state apprehends its indigenous citizens. Ultimately, they seek more inclusive, representative governmental policies for indigenous peoples in Mexico without rejecting capitalist hegemony: they are articulating it against itself

Modeling Employee Burnout and Stress Levels Using Generalized Linear Models

In recent years, mental health has become a more prominent problem worldwide. One specific area of rising concern is the increase in the amount of stress and burnout that many people are experiencing. This research seeks to investigate the factors that are affecting stress and burnout as they pertain to the workplace environment. A series of multinomial logistic regression models and Poisson regression models are used to identify the factors affecting employees’ stress and burnout with respect to the workplace environment using the most recent Work, Family, and Health Study (WFHS) dataset from the Work, Family, and Health Network. This research found that important factors affecting stress and burnout include decision authority, job demands, and job satisfaction

Edge Effects and the Population Structure of Humboldt Bay, California, Eelgrass ( Zostera marina

The physical structure of a habitat (e.g., fragmentation) may affect the distribution of genetic diversity within a population, and genetic diversity may alter ecological function. This study investigates the population genetics of Humboldt Bay, California, eelgrass in light of the habitat’s fragmented physical structure. Historical and ongoing dredging operations in the bay maintain channels between fragmented tidal mudflats that are inhabited by eelgrass. A sample of 469 individuals, from 11 discrete fragments, was genotyped using microsatellite analysis. Ramets were collected at multiple points located at the edge and in the interior of each fragment. The sampling scheme was designed to detect evidence of population structure within and between fragments, as well as between edge and interior bed positions. Genetic diversity is not shown to differ among fragments and is not consistent with widespread clonality. Heterozygosity levels indicate that Hardy-Weinberg equilibrium predominates across loci in most instances. Comparisons of edge and interior bed positions also reveal similarities between positions for the metrics described above. Results suggest efficient gene flow between fragments and between bed positions. Such findings, which indicate the unstructured nature of the population, can guide resource managers in making evolutionarily informed conservation decisions by discouraging assumptions of low genetic diversity and insignificant sexual reproduction

Reducing numerical diffusion for incompressible flow calculations

A number of approaches for improving the accuracy of incompressible, steady-state flow calculations are examined. Two improved differencing schemes, Quadratic Upstream Interpolation for Convective Kinematics (QUICK) and Skew-Upwind Differencing (SUD), are applied to the convective terms in the Navier-Stokes equations and compared with results obtained using hybrid differencing. In a number of test calculations, it is illustrated that no single scheme exhibits superior performance for all flow situations. However, both SUD and QUICK are shown to be generally more accurate than hybrid differencing