Interoperator test for anatomical annotation of earprints

As part of the Forensic Ear Identification (FearID) research project, which aims to obtain estimators for the strength of evidence of earmarks found on crime scenes, a large database of earprints (over 1200 donors) has been collected. Starting from a knowledge-based approach where experts add anatomical annotations of minutiae and landmarks present in prints, comparison of pairs of prints is done using the method of Vector Template Matching (VTM). As the annotation process is subjective, a validation experiment was performed to study its stability. Comparing prints on the basis of VTM, it appears that there are interoperator effects, individual operators yielding significantly more consistent results when annotating prints than different operators. The operators being well trained and educated, the observed variation on both clicking frequency and choice of annotation points suggests that implementation of the above is not the best way to go about objectifying earprint comparison. Processes like the above are relevant for any forensic science dealing with identification (e.g., of glass, tool marks, fibers, faces, fingers, handwriting, speakers) where manual (nonautomated) processes play a role. In these cases, results may be operator dependent and the dependencies need to be studied.     

Community-Kirchen im Wandel

The first section of this article describes a hiatus dominating present-day research on immigrants’ religious associations: On the one hand, the theoretical debates among sociologists of religion are more or less based on the analysis of Western Christianity. On the other hand, empirical researchers focus predominantly on the associations of Muslim and Asian immigrants. On this basis, the author presents a heuristic model that adds the distinction between immigration society and immigrants’ community to the classical sect-church typology. Following this line of thought, the article highlights the concept of community-churches, referring to Max Weber’s ideal type of the ?church“ as well as Friedrich Heckmann’s idea of the ?community“. Starting with the 1950s, the development of Christian immigrants’ associations appears to be dominated by groups close to the community-church type. Since the mid-1990s, these associations are developing in different directions: First, new types of religious institutions are developing among the immigrants. Second, the religious groups are linking themselves more and more to the immigration society.     

Ethnische Ressourcen: Das Beispiel der Bilingualität

Taking bilingualism as an example, this contribution addresses the hypothesis that ethnic resources play an important role for the integration of migrants. This assumption is particularly prevalent in more recent concepts of the sociology of migration like, for example, in the concept of “segmented assimilation”. We will address four different questions: the importance of mother tongue skills for school achievement, the effects of mother tongue education programs on school achievement, the impact of mother tongue skills on labour market success in general and then particularly in Canada as a frequently cited example for a country pursuing an “adequate” language and integration policy. The evidence suggests that mother tongue skills (as well as inner-ethnic relations) virtually never display empirically provable effects on educational and labour market success. At least regarding processes of language acquisition and its consequences, the concept of intergenerational absorption through (linguistic) acculturation is still valid, which also holds for Canada.     

The Development of Posttraumatic Stress Disorder (PTSD) in a Sample of Child Witnesses to Mother Assault

This exploratory study examined the relationship between the development of posttraumatic stress disorder (PTSD) and a number of coping variables in child witnesses to mother assault. The sample consisted of 84 children (mean age 11 years) who had been referred from shelters for battered women and child welfare agencies. Comparisons of those who met PTSD criteria (n = 47) and those who did not meet PTSD criteria (n = 37) found significant differences on variables of age, duration, and frequency of witnessing children. Child self-report instruments indicated that the PTSD group differed significantly from the non-PTSD group on the basis of assault anxiety, depression, dissociation, anger, and negative attributions. Hierarchical multiple regression analysis indicated that factors related to negative attributions and assault variables each contributed significantly to explaining 71% of the variance of PTSD symptoms, after the variables of age and sex were controlled. Discriminant function analysis correctly classified 84.3% of the respondents. The relevance of PTSD to child witnesses is considered, along with study limitations.     

University–industry collaboration and regional wealth

Substantial research has been conducted towards understanding why and how universities shape regional wealth and competitiveness. In this paper we extend this literature to examine empirically causal relationships between university-induced knowledge spillovers and regional wealth using a hand collected panel data set from 1998 to 2012. Literature has identified three possible effects of causality, namely that a university exogenously fosters and spurs regional wealth, second that universities are endogenously shaped by regional wealth and finally that regional wealth and universities follow an interlinked and co-evolutionary path. Our findings support the latter direction in that universities and their regional endowment are linked together.     

Keeping Friends Close and Enemies Closer: Classical Realist Statecraft and Economic Exchange in U.S. Interwar Strategy

This article addresses the relationship between economic exchange and grand strategy and explains why rival states exchange with each other. The theoretical debate among realists is defined, while a novel, yet classical, realist exchange theory is proffered and evaluated against the record of U.S.-Japanese exchange, 1918–41. In this particular case, the origins of Japan's oil dependency on the United States are detailed for the first time as is the U.S. policy toward Britain and the Netherlands that created this dependency. The article finds U.S. strategic coordination of Japan's economic vulnerabilities and their use advanced U.S. grand strategy leading into WWII. The article concludes that the July 1941 U.S. oil embargo against Japan was purposeful and the product of a larger policy arc from the early post-WWI period.     

Generalizing about peasant movements

Latin American Peasant Movements edited by Henry Landsberger. Ithaca and London: Cornell University Press, 1969. Pp. xi, 476; $12.0 and £5–95. Agrarian Problems and Peasant Movements in Latin America edited by Rodolfo Stavenhagen. New York and London: Doubleday‐Anchor, 1970. Pp. xi, 583; $2.45 and £1.25. Peasant Wars of the Twentieth Century by Eric Wolf. New York: Harper and Row, 1969, and London: Faber & Faber, 1971. Pp. xix, 328; $4.45 and £3.00. Zapata and the Mexican Revolution by John Womack Jr. New York: Vintage Books, 1969, and London: Thames & Hudson, 1970. Pp. 457; £4.20.     

National systems of innovation

The perhaps broadest approach to economic performance at the level of a country is the concept of national systems of innovation. Despite the emergence of a compelling literature identifying the persistence of innovative activities and country specific institutional effects, evidence on the nature of national systems of innovation is still missing and a number of crucial questions and answers remain unanswered. To shed light on these issues, as of leading scholars of entrepreneurship and innovation was assembled from around the world for a conference on “National Systems of Entrepreneurship and Innovation” at the ZEW Mannheim in November 2014. This article draws on the NSI framework, sets it in a larger context, examines the logic of the approach and introduces the special issue by summarizing the papers presented at the conference and selected for this special issue.