Influence of experience and training on dental students’ examination performance regarding panoramic images

Physician training has greatly benefitted from insights gained in understanding the manner in which experts search medical images for abnormalities. The aims of this study were to compare the search patterns of 30 fourth-year dental students and 15 certified oral and maxillofacial radiologists (OMRs) over panoramic images and to determine the most robust variables for future studies involving image visualization. Eye tracking was used to capture the eye movement patterns of both subject groups when examining 20 panoramic images classified as normal or abnormal. Abnormal images were further subclassified as having an obvious, intermediate, or subtle abnormality. The images were presented in random order to each participant, and data were collected on duration of the participants’ observations and total distance tracked, time to first eye fixation, and total duration and numbers of fixations on and off the area of interest (AOI). The results showed that the OMRs covered greater distances than the dental students (p<0.001) for normal images. For images of pathosis, the OMRs required less total time (p<0.001), made fewer eye fixations (p<0.01) with fewer saccades (p<0.001) than the students, and required less time before making the first fixation on the AOI (p<0.01). Furthermore, the OMRs covered less distance (p<0.001) than the dental students for obvious pathoses. For investigations of images of pathosis, time to first fixation is a robust parameter in predicting ability. For images with different levels of subtlety of pathoses, the number of fixations, total time spent, and numbers of revisits are important parameters to analyze when comparing observer groups with different levels of experience.

An Exercise in Legal Honesty: Re-writing the Court of Justice and the Bundesverfassungsgericht. IHS Political Science Series No. 136, February 2014

At a time of crisis – a true state of emergency – both the Court of Justice of the European Union and the German Federal Constitutional Court have failed the rule of law in Europe. Worse still, in their evaluation of the ersatz crisis law, which has been developed in response to financial and sovereign debt crises, both courts have undermined constitutionality throughout Europe. Each jurisdiction has been implicated within the techocratisation of democratic process. Each Court has contributed to an incremental process of the undermining of the political subjectivity of European Citizens. The results are depressing for lawyers who are still attached to notions of constitutionality. Yet, we must also ask whether the Courts could have acted otherwise. Given the original flaws in the construction of Economic and Monetary Union, as well as the politically pre-emptive constraints imposed by global financial markets, each Court might thus be argued to have been forced to suspend immediate legality in a longer term effort to secure the character of the legal jurisdiction as a whole. Crisis can and does defeat the law. Nevertheless, what continues to disturb is the failure of law in Europe to open up any perspective for a return to normal constitutionality post crisis, as well as its apparent inability to give proper and honest consideration to the hardship now being experienced by millions of Europeans within crisis. This contribution accordingly seeks to reimagine each Judgment in a language of legal honesty. Above all, this contribution seeks to suggest a new form of post-national constitutional language; a language which takes as its primary function, proper protection of democratic process against the ever encroaching powers of a post-national executive power. This contribution forms a part of an on-going effort to identify a new basis for the legitimacy of European Law, conducted jointly and severally with Christian Joerges, University of Bremen and Hertie School of Government, Berlin. Differences do remain in our theoretical positions; hence this individual essay. Nevertheless, the congruence between pluralist and conflict of law approaches to the topic are also readily apparent. See, for example, Everson & Joerges (2013).

The European Union as a System of Differentiated Integration: Interdependence, Politicization and Differentiation. IHS Political Science Series No. 137, 10 July 2014

This paper conceptualizes the European Union (EU) as a system of differentiated integration characterized by both variation in levels of centralization (vertical differentiation) and variation in territorial extension (horizontal differentiation) across policy areas. Differentiation has been a concomitant of deepening and widening and has increased and consolidated as the EU’s powers, policy scope, and membership have grown. Turning to explanation, the paper attributes the pattern of differentiated integration in the EU to the interaction of interdependence and politicization. Differentiation among the member states (internal differentiation) results from supranational integration under conditions of high interdependence and politicization. By contrast, external differentiation (the selective policy integration of non-member states) occurs in highly interdependent but weakly politicized policy areas. These constellations are illustrated in case studies of differentiation in the internal market, monetary union, and defence.

Strategic Voting in Proportional Systems: The Case of Finland. IHS Political Science Series No. 138, September 2014

Voters try to avoid wasting their votes even in PR systems. In this paper we make a case that this type of strategic voting can be observed and predicted even in PR systems. Contrary to the literature we do not see weak institutional incentive structures as indicative of a hopeless endeavor for studying strategic voting. The crucial question for strategic voting is how institutional incentives constrain an individual’s decision-making process. Based on expected utility maximization we put forward a micro-logic of an individual’s expectation formation process driven by institutional and dispositional incentives. All well-known institutional incentives to vote strategically that get channelled through the district magnitude are moderated by dispositional factors in order to become relevant for voting decisions. Employing data from Finland – because of its electoral system a particularly hard testing ground - we find considerable evidence for observable implications of our theory.

Influence of experience and training on dental students’ examination performance regarding panoramic images.

Physician training has greatly benefitted from insights gained in understanding the manner in which experts search medical images for abnormalities. The aims of this study were to compare the search patterns of 30 fourth-year dental students and 15 certified oral and maxillofacial radiologists (OMRs) over panoramic images and to determine the most robust variables for future studies involving image visualization. Eye tracking was used to capture the eye movement patterns of both subject groups when examining 20 panoramic images classified as normal or abnormal. Abnormal images were further subclassified as having an obvious, intermediate, or subtle abnormality. The images were presented in random order to each participant, and data were collected on duration of the participants’ observations and total distance tracked, time to first eye fixation, and total duration and numbers of fixations on and off the area of interest (AOI). The results showed that the OMRs covered greater distances than the dental students (p<0.001) for normal images. For images of pathosis, the OMRs required less total time (p<0.001), made fewer eye fixations (p<0.01) with fewer saccades (p<0.001) than the students, and required less time before making the first fixation on the AOI (p<0.01). Furthermore, the OMRs covered less distance (p<0.001) than the dental students for obvious pathoses. For investigations of images of pathosis, time to first fixation is a robust parameter in predicting ability. For images with different levels of subtlety of pathoses, the number of fixations, total time spent, and numbers of revisits are important parameters to analyze when comparing observer groups with different levels of experience.

The Puerto Rican study, 1953-1957; a report on the education and adjustment of Puerto Rican pupils in the public schools of the city of New York

Mode of access: Internet.

A political history of Parthia,

Mode of access: Internet.

The Roman Catholic Church as a factor in the political and social history of Mexico.

Bibliography: p. 187-188.

Contributions to the history of science,

Each part also published separately, 1915 and 1916 respectively.