11,451 research outputs found

    Style, Narrative, and Cultural Politics in Bullitt

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    Peter Yates’s 1968 film Bullitt cemented the reputation of its star, Steve McQueen, as “the essence of cool” – to borrow a phrase from the title of the 2005 documentary that reflects on the star’s legacy. As the film reveals, however, and the documentary explores, Bullitt is fraught with narrative problems, its now iconic set-pieces seemingly purchased at the expense of coherent and accessible plot development. Meanwhile the film’s formal experimentation – internally motivated by the thematic preoccupation with “noise” and freeways – heightens the ecstatic presentation of actor/protagonist as image (and of the autonomization of “style” in general), which in turn can be read as an ambivalent response to the cultural politics of the late 1960s. This paper explores the ways in which various elements of style, narrative, and cultural politics interact within the context of the film, placing Bullitt at a pivotal moment in both cinematic and cultural history.info:eu-repo/semantics/publishedVersio

    The Life and Work of George Dombek

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    George Dombek is an accomplished artist who graduated from the University of Arkansas with degrees in Architecture and Painting. His career as both professor and painter has taken him around the world and produced a substantial body of work. This work seeks to examine his art in a larger art historical context and consider the development of the subjects and style of his paintings over the span of his career

    Courts and Executives

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    William Howard Taft was both our twenty-seventh president and the tenth Chief Justice of the U.S. Supreme Court -- the only person to have ever held both high positions in our country. He once famously commented that presidents may come and go, but the Supreme Court goes on forever (Pringle 1998). His remark reminds us that presidents serve only four-year terms (and are now limited to two of them), but justices of the Supreme court are appointed for life and leave a legacy of precedent-setting cases after departing the High Court. Of course, presidents also leave a legacy of important decisions, not the least of which being their appointment of federal judges. [excerpt

    The Guanylate Cyclase C-cGMP Signaling Axis Opposes Intestinal Epithelial Injury and Neoplasia.

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    Guanylate cyclase C (GUCY2C) is a transmembrane receptor expressed on the luminal aspect of the intestinal epithelium. Its ligands include bacterial heat-stable enterotoxins responsible for traveler\u27s diarrhea, the endogenous peptide hormones uroguanylin and guanylin, and the synthetic agents, linaclotide, plecanatide, and dolcanatide. Ligand-activated GUCY2C catalyzes the synthesis of intracellular cyclic GMP (cGMP), initiating signaling cascades underlying homeostasis of the intestinal epithelium. Mouse models of GUCY2C ablation, and recently, human populations harboring GUCY2C mutations, have revealed the diverse contributions of this signaling axis to epithelial health, including regulating fluid secretion, microbiome composition, intestinal barrier integrity, epithelial renewal, cell cycle progression, responses to DNA damage, epithelial-mesenchymal cross-talk, cell migration, and cellular metabolic status. Because of these wide-ranging roles, dysregulation of the GUCY2C-cGMP signaling axis has been implicated in the pathogenesis of bowel transit disorders, inflammatory bowel disease, and colorectal cancer. This review explores the current understanding of cGMP signaling in the intestinal epithelium and mechanisms by which it opposes intestinal injury. Particular focus will be applied to its emerging role in tumor suppression. In colorectal tumors, endogenous GUCY2C ligand expression is lost by a yet undefined mechanism conserved in mice and humans. Further, reconstitution of GUCY2C signaling through genetic or oral ligand replacement opposes tumorigenesis in mice. Taken together, these findings suggest an intriguing hypothesis that colorectal cancer arises in a microenvironment of functional GUCY2C inactivation, which can be repaired by oral ligand replacement. Hence, the GUCY2C signaling axis represents a novel therapeutic target for preventing colorectal cancer

    Climbing Atop the Shoulders of Giants: The Impact of Institutions on Cumulative Research

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    While the cumulative nature of knowledge is recognized as central to economic growth, the microeconomic foundations of cumulativeness are less understood. This paper investigates the impact of a research-enhancing institution on cumulativeness, highlighting two effects. First, a selection effect may result in a high correlation between "high-quality" institutions and knowledge of high intrinsic quality. Second, an institution may have a marginal impact -- an incremental influence on cumulativeness, conditional on the type and quality of knowledge considered. This paper distinguishes these effects in the context of a specific institution, biological resource centers (BRCs). BRCs are "living libraries" that authenticate, preserve, and offer independent access to biological materials, such as cells, cultures, and specimens. BRCs may enhance the cumulativeness of knowledge by reducing the marginal cost to researchers of drawing on prior research efforts. We exploit three key aspects of the environment in which BRCs operate to evaluate how they affect the cumulativeness of knowledge: (a) the impact of scientific knowledge is reflected in future scientific citations, (b) deposit into BRCs often occurs with a substantial lag after initial research is completed and published, and (c) "lagged" deposits often result from shocks unrelated to the characteristics of the materials themselves. Employing a difference-in-differences estimator linking specific materials deposits to journal articles, we find evidence for both selection effects and the marginal impact of BRCs on the cumulativeness of knowledge associated with deposited materials. Moreover, the marginal impact increases with time and varies with the economic and institutional conditions in which deposit occurs.

    Evaluating Alternative Safety Net Programs in Alberta: A Firm-level Simulation Analysis

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    This paper examines alternative risk management strategies in terms of their effectiveness for three representative Alberta farm operations. Stochastic dynamic simulation methods are used to model financial performance for these farms, and alternative risk management programs are compared in terms of their ability to stabilize returns, support income and reduce the probability of bankruptcy. The results suggest that government programs such as the Net Income Stabilization Account (NISA) program or the Farm Income Disaster Program (FIDP) in Alberta have some benefits in terms of supporting income levels and reducing the chances of farm failure. Neither program is very effective, however, in stabilizing year to year income or cash flow for the farm operations. As a risk management program, FIDP is more effective than NISA but this improved performance comes at the price of higher government costs. Performance of NISA and FIDP, relative to alternative risk management programs and strategies such as forward contracting or crop insurance, is mixed. In some cases, NISA does not seem to provide benefits beyond those available from other strategies, while FIDP tends to perform better than the alternatives. Finally, while increased debt load weakens firm financial performance, NISA and FIDP still provide some benefits in terms of supporting income and reducing the probability of bankruptcy.Farm Management, Risk and Uncertainty,

    Who Chooses Defined Contribution Plans?

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    This paper provides new evidence on what types of individuals are most likely to choose a defined contribution (DC) plan over a defined benefit (DB) plan. Making use of administrative data from the State Universities Retirement System (SURS) of Illinois, we study the decisions of nearly 50,000 new employees who make a one-time, irrevocable choice between a traditional DB plan, a portable DB plan, and an entirely self-managed DC plan. Because the SURS-covered earnings of these employees are not covered under the Social Security system, their choices provides insight into the DB vs. DC preferences of individuals with regard to a primary source of their retirement income. We find that a majority of participants fail to make an active decision and are thus defaulted into the traditional DB plan after 6 months. We also find that those individuals who are most likely to be financially sophisticated are most likely to choose the self-managed DC plan, despite the fact that, given plan parameters, the DC plan is inferior to the portable DB plan under reasonable assumptions about future financial market returns. We discuss both rational and behavioral reasons that might explain this finding.

    Do free trade agreements actually increase members’ international trade?

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    For more than forty years, the gravity equation has been a workhorse for cross-country empirical analyses of international trade flows and, in particular, the effects of free trade agreements (FTAs) on trade flows. However, the gravity equation is subject to the same econometric critique as earlier cross-industry studies of U.S. tariff and nontariff barriers and U.S. multilateral imports: Trade policy is not an exogenous variable. The authors address econometrically the endogeneity of FTAs using instrumental-variable (IV) techniques, control-function (CF) techniques, and panel-data techniques; IV and CF approaches do not adjust for endogeneity well, but a panel-data approach does. Accounting econometrically for the FTA variable’s endogeneity yields striking empirical results: The effect of FTAs on trade flows is quintupled.

    A COMPARATIVE ANALYSIS OF RISK PREFERENCE ELICITATION PROCEDURES USING MAIL SURVEY RESULTS

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    Research Methods/ Statistical Methods, Risk and Uncertainty,
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