MATHEMATICAL EXPLANATION AND INDISPENSABILITY ARGUMENTS

We defend Joseph Melia's thesis that the role of mathematics in scientific theory is to 'index' quantities, and that even if mathematics is indispensable to scientific explanations of concrete phenomena, it does not explain any of those phenomena. This thesis is defended against objections by Mark Colyvan and Alan Baker.     

Eliciting intelligence from sources informed about counter‐interrogation strategies: An experimental study on the Scharff technique

The Scharff technique aims to elicit information by affecting the source's perception of the interviewer's existing knowledge. Although the technique has been found to be effective for gathering new information, countermeasures to the technique have not been examined. In a 2 × 2 between‐subjects experiment, we informed half of the 120 sources about the counter‐interrogation strategy of carefully considering the interviewer's prior knowledge and the tactic of providing information perceived as already known to the interviewer. After this, sources were interviewed with the Scharff technique or the Direct approach, widely used in human intelligence‐gathering situations and consisting of open‐ended and direct questions. We found that “informed sources” did not succeed in revealing information already known to the interviewer, where informed sources and uninformed sources revealed known information to a similar degree (1.62 pieces vs. 1.65 pieces). Sources interviewed with the Direct approach (vs. Scharff technique) revealed a larger amount of information previously known to the interviewer (2.18 pieces vs. 1.08 pieces). When interviewed with the Scharff technique, sources informed about the counter‐interrogation strategy attempted to adopt more counter‐interrogation strategies. The present study replicates earlier research on the Scharff technique as a technique effective in affecting the source's perception of the interviewer's prior knowledge. The results of the current study indicate that both the Scharff technique and the Direct approach might be similarly robust against counter‐interrogation strategies, in terms of gathering new information. Future studies should focus on implementing more comprehensive training in counter‐interrogation strategies for the sources.     

A manifesto for the new MCDA era

The following manifesto has been prepared by five prominent workers in the field of MCDA. We are currently preparing a special issue on the issues that they raise (see Call for Papers on p. 128). We invite you to contribute to the debate in that issue, either in the form of a paper or a letter to the Editor.     

Valuing the future: a MADA example involving nuclear waste storage

Intertemporal decision making involves decisions that have consequences that span several periods of time and often extend far into the future. The purpose of this paper is to discuss and highlight the differences associated with different evaluation methods designed to cope with the long-term impacts of a decision including discounting. The concepts and ideas are illustrated in the context of a decision about a nuclear waste facility. We show how applying different discounting methodologies can greatly affect the decision made, especially over long time periods. © 1998 John Wiley & Sons, Ltd.     

From landsmanshaften to vinkln: Mediating community among Yiddish speakers in America

Vinkln (“corners”) in America have spread since the 1970s as an organizational strategy by Yiddish-speaking, non-pietistic, East European Jewish immigrants, many of whom have a Holocaust experience. The vinkln provide a privatized, immersive experience for Yiddish language and culture as a way to offer community identity to Yiddish speakers within the wider Jewish community. They arose out of landsmanschaften, or “hometown associations,” in the early twentieth century, but the vinkln function to ritually reproduce culture rather than offer mutual aid based on old-country affiliation. Although secularized, the organized social structure and performed communication of the vinkln invoke rituals and roles of Jewish religious services from traditional community experience. They displace old-country affiliations with pronounced loyalties to Israel and America, although the location of Yiddish in performance is often centered in Poland. The vinkln mediate community by suggesting cultural reproduction even as the bonds of language and society among Yiddish speakers are weakening. Its symbols and associations are restricted to an elderly age cohort, and therefore not likely to perpetuate the very culture that its organizers purport to preserve. It is differentiated from other structures of Yiddish conservation and appreciation such as Internet networks and community center conversation groups. This revised version was published online in June 2006 with corrections to the Cover Date.     

Normativity à la Mode

This paper sets out to raise questions about the metaphor of the spaceof reasons. It argues that a proper appreciation of Wittgensteinundermines the metaphysical or dualistic way of taking the metaphor thatis supposed to prevent the naturalization of reason.     

Collaborative Discovery in a Scientific Domain

This study compares Pairs of subjects with Single subjects in a task of discovering scientific laws with the aid of experiments. Subjects solved a molecular genetics task in a computer micro-world (Dunbar, 1993). Pairs were more successful in discovery than Singles and participated more actively in explanatory activities (i.e., entertaining hypotheses and considering alternative ideas and justifications). Explanatory activities were effective for discovery only when the subjects also conducted crucial experiments. Explanatory activities were facilitated when paired subjects made requests of each other for explanation and focused on them. The study extends from individual to collaborative discovery activities the importance to the discovery process of setting goals to find hypotheses and evidence (Dunbar, 1993) and to construct explanations of phenomena and processes encountered in examples (Chi, Bassok, Lewis, & Glaser, 1989).     

Predicting Suicide Attempts for Racial and Ethnic Groups of Patients During Routine Clinical Care

The aim of this study was to examine variation in suicide ideation and its relationship to risk of suicide attempt in the subsequent 90 days by race and ethnicity. Participants were adults who completed the Patient Health Questionnaire depression module (PHQ9) during an outpatient encounter between January 10, 2010, and December 12, 2012 (N = 509,945 patients; N = 1,228,308 completed PHQ9). Data came from the Virtual Data Warehouse from four health care systems in the Mental Health Research Network. The sample was majority female (73.7%), primarily 30–64 years old (60.1%), healthy (64.5% comorbidity index = 0), and over half were non‐Hispanic White (52.9%). Only Asian patients (OR: 1.31; 95% CI: 1.24, 1.39) had higher odds of reporting suicide ideation when compared to non‐Hispanic White people. All racial and ethnic groups had increased risk for suicide attempt with increased frequency of suicide ideation. The PHQ9 item 9 can be used as an indicator of suicide ideation and risk for suicide attempt up to 90 days after the reported ideation in racial and ethnic minority patients during routine clinical care.     

The Eucharist before Nature and Culture

This article examines the claim by Bruno Latour that the modern division between the realms of nature and culture is in collapse. Following Latour, the division of nature and culture is located within a “modern constitution” which also includes the bracketing of God and a non-theological ontology. Technology is examined as a means of overcoming the chaotic collapse of the dualism of nature and culture. Particular reference is made to the work of Donna Haraway. However, it is argued that technology, in being mimetic, is not able to re-configure the relationship between nature and culture. Instead, through a comparison of the theologies of John Calvin and St. Thomas Aquinas, nature and culture are seen to be reconfigured in a non-mimetic understanding of the Eucharist in which the natural and cultural elements of the Church's liturgy reach their telos through participation in the divine life.