Boston College

About: Boston College is a education organization based out in Boston, Massachusetts, United States. It is known for research contribution in the topics: Population & Poison control. The organization has 9749 authors who have published 25406 publications receiving 1105145 citations. The organization is also known as: BC.

Colossal mid-infrared bulk photovoltaic effect in a type-I Weyl semimetal.

Abstract: Broadband, efficient and fast conversion of light to electricity is crucial for sensing and clean energy. The bulk photovoltaic effect (BPVE) is a second-order nonlinear optical effect that intrinsically converts light into electrical current. Here, we demonstrate a large mid-infrared BPVE in microscopic devices of the Weyl semimetal TaAs. This discovery results from combining recent developments in Weyl semimetals, focused-ion beam fabrication and theoretical works suggesting a connection between BPVE and topology. We also present a detailed symmetry analysis that allows us to separate the shift current response from photothermal effects. The magnitude and wavelength range of the assigned shift current may impact optical detectors, clean energy and topology, and demonstrate the utility of Weyl semimetals for practical applications.

Constructing Emotion The Experience of Fear as a Conceptual Act

Abstract: This study examined the hypothesis that emotion is a psychological event constructed from the more basic elements of core affect and conceptual knowledge. Participants were primed with conceptual knowledge of fear, conceptual knowledge of anger, or a neutral prime and then proceeded through an affect-induction procedure designed to induce unpleasant, high-arousal affect or a neutral affective state. As predicted, only those individuals for whom conceptual knowledge of fear had been primed experienced unpleasant core affect as evidence that the world was threatening. This study provides the first experimental support for the hypothesis that people experience world-focused emotion when they conceptualize their core affective state using accessible knowledge about emotion.

A Theory of the Syndicate: Form Follows Function

Abstract: We relate the organizational form of investment banking syndicates to moral hazard in team production. Although syndicates are dissolved upon deal completion, membership stability across deals represents a barrier to entry that enables the capture of quasi-rents. This improves incentives for individual bankers to cultivate investor relationships that translate into greater expected proceeds. Reputational concerns of lead bankers amplify the effect. We derive conditions under which restricted entry and designation of a lead banker strictly Pareto dominate, in which case it is also strictly Pareto dominant for the syndicate's fee to be greater than members' cost of participation. Copyright The American Finance Association 2001.

The Effectiveness of Alternative Risk Assessment and Program Planning Tools in a Fraud Setting

Abstract: This study examines the impact of alternative risk assessment (standard risk checklist versus no checklist) and program development (standard program versus no program) tools on two facets of fraud planning effectiveness: (1) the quality of audit procedures relative to a benchmark validated by a panel of experts, and (2) the propensity to consult fraud experts. A between-subjects experiment, using an SEC enforcement fraud case, was conducted to examine these relationships. Sixty-nine auditors made risk assessments and designed an audit program. We found that auditors who used a standard risk checklist, structured by SAS No. 82 risk categories, made lower risk assessments than those without a checklist. This suggests that the use of the checklist was associated with a less effective diagnosis of the fraud. We also found that auditors with a standard audit program designed a relatively less effective fraud program than those without this tool but were not more willing to seek consultation with fraud experts. This suggests that standard programs may impair auditors' ability to respond to fraud risk. Finally, our results show that fraud risk assessment (FRASK) was not associated with the planning of more effective fraud procedures but was directly associated with the desire to consult with fraud specialists. This suggests that one benefit of improved FRASK is its relation with consultation. Overall, the findings call into question the effectiveness of standard audit tools in a fraud setting and highlight the need for a more strategic reasoning approach in an elevated risk situation.