Objectives: The N2b is an event-related potential component thought to index higher-order executive function. While the impact of concussion on executive functioning is frequently discussed in the literature, limited research has been done on the role of N2b in evaluating executive functioning in patients with concussion. The aims of this review are to consolidate an understanding of the cognitive functions reflected by the N2b and to account for discrepancies in literature findings regarding the N2b and concussion.Methods: A scoping review was (...) conducted on studies that used the N2b to measure cognitive functioning in healthy control populations, as well as in people with concussions.Results: Sixty-six articles that met inclusion criteria demonstrated that the N2b effectively represents stimulus-response conflict management, response selection, and response inhibition. However, the 19 included articles investigating head injury found widely varied results: some studies found the amplitude of the N2b to be increased in the concussion group, while others found it to be decreased or unchanged.Conclusion: Based on the available evidence, differences in the amplitude of the N2b have been linked to response selection, conflict, and inhibition deficits in concussion. However, due to large variations in methodology across studies, findings about the directionality of this effect remain inconclusive. The results of this review suggest that future research should be conducted with greater standardization and consistency. (shrink)

The present volume collects novel approaches to two classical topics within verbal semantics, namely argument structure and the treatment of time and aspect.

The present article provides a mereological analysis of Euclid’s planar geometry as presented in the first two books of his Elements. As a standard of comparison, a brief survey of the basic concepts of planar geometry formulated in a set-theoretic framework is given in Section 2. Section 3.2, then, develops the theories of incidence and order using a blend of mereology and convex geometry. Section 3.3 explains Euclid’s “megethology”, i.e., his theory of magnitudes. In Euclid’s system of geometry, megethology takes (...) over the role played by the theory of congruence in modern accounts of geometry. Mereology and megethology are connected by Euclid’s Axiom 5: “The whole is greater than the part.” Section 4 compares Euclid’s theory of polygonal area, based on his “Whole-Greater-Than-Part” principle, to the account provided by Hilbert in his Grundlagen der Geometrie. An hypothesis is set forth why modern treatments of geometry abandon Euclid’s Axiom 5. Finally, in Section 5, the adequacy of atomistic mereology as a framework for a formal reconstruction of Euclid’s system of geometry is discussed. (shrink)

The present article first places Mach’s consideration about space and geometry into the context of the discussion of these issues in the nineteenth and early twentieth century and then proposes three interpretations of Mach’s thesis, put forward in chapter XXI of his Knowledge and Error, that the problem of measuring the volumes of material bodies is the origin of geometry. According to the first of these interpretations, Mach’s thesis is an assertion about the historical origin of the science of geometry. (...) Alternatively, one may understand Mach as suggesting that our geometric theorizing is best understood by relating it to our handling of material bodies and our interest in their volumes. Finally, Mach’s thesis may be conceived as asserting that the most appropriate form of geometry would be a metric geometry of the volumes of solids. The article concludes with a discussion of objections raised by Brentano against both Mach’s thesis of the priority of the measurement of volumes and his conception of bodies as complexes as sensations. (shrink)

Charles Taylor indicates in A Secular Age his admiration for Henri de Lubac, Yves Congar, and other Catholic theologians associated with la nouvelle théologie. This essay reads de Lubac and Taylor on the secular, analyzing convergences as well as key differences. In particular, it argues that both underestimate the possibilities of political and liberation theologies. The concluding section puts de Lubac and Taylor in dialogue with forms of political theology that have been in dialogue with their work. The author argues (...) that a stronger political theology can be drawn out of the approach of de Lubac and Taylor despite the trepidations of each toward such a project. (shrink)

In the 1930s Otto Selz developed a novel approach to the psychology of perception which he called “synthetic psychology of wholes”. This “synthetic psychology” is based on a phenomenological description of the structural relationships between elementary items building up integral wholes. The present article deals with Selz’s account of spatial cognition within this general framework. Selz Zeitschrift für Psychologie, 114, 351–362 argues that his approach to spatial cognition delivers answers to the long-discussed question of the epistemological status of the laws (...) of geometry. More specifically he tries to derive the Euclidean axioms from the structural laws valid for phenomenal space. After a brief description of the discussion of the status of geometry in the 1920s/1930, the present article explains Selz’s understanding of “phenomenology”. Section 4 then deals with Selz’s attempt to derive the Euclidean laws from the structural phenomenological laws of space. Selz’s attempted derivation suffers from some formal shortcomings, which however can be repaired. The question arises, though, whether the necessary improvements do not rely upon more intricate geometric intuitions and thus render Selz’s attempt to base geometry upon the phenomenology of spatial cognition circular. (shrink)

Following ideas elaborated by Hering in his celebrated analysis of color, the psychologist and gestalt theorist Otto Selz developed in the 1930s a theory of “natural space”, i.e., space as it is conceived by us. Selz’s thesis is that the geometric laws of natural space describe how the points of this space are related to each other by directions which are ordered in the same way as the points on a sphere. At the end of one of his articles, Selz (...) tries to derive within his framework two of Hilbert’s axioms for Euclidean geometry. Such derivations would, according to Selz, disclose the psychological origin and meaning of the geometric axioms and would thus contribute to a clarification of their epistemological status. In the present article Selz’s theory is explained and analyzed, his basic principles are amended, and implicit assumptions are made explicit. It is shown that the resulting system is one of ordered affine geometry in which all of Hilbert’s axioms except the axioms of congruence and those of continuity are derivable. The primary aim of the present paper is to make explicit the basic principles behind Selz’s geometry of natural space. The question of the logical independence of these principle is not investigated. (shrink)

Papers presented at a workshop held during 17th-18th, January, 2008 at Technische Universit'at Berlin.

Background The wide proliferation of Covid-19 has impacted billions of people all over the world. This catastrophic pandemic outbreak and ostracism at work have posed challenges for all healthcare professionals, especially for nurses, and have led to a significant increase in the workload, several physical and mental problems, and a change in behavior that is more negative and counterproductive. Therefore, leadership behaviors that are moral in nature serve as a trigger and lessen the adverse workplace effects on nurses’ conduct. Aim (...) this research is directed to explore the impact of post-COVID-19 workplace ostracism on nurses’ counterproductive behavior and examine the role of moral leadership as a mediating factor in post-COVID-19 workplace ostracism and nurses’ counterproductive behavior. Ethical consideration Ethical review and approval Was received from Ethical Committee at the Faculty of Nursing, Alexandria University, Egypt. Methods A cross-sectional and correlation study was implemented in all units of medical, surgical, critical and intensive care units by using three tools; moral leadership questionnaire, Workplace Ostracism Instrument (WOS), and Counterproductive Work Behaviors Questionnaire (CWBs). A convenient sample of 340 from 699 bedside nurses was granted. Results This study revealed that nurses’ perceived moderate mean percent (55.49 ± 3.46) of overall workplace ostracism and counterproductive behavior (74.69 ± 6.15). However, they perceived a low mean percentage of moral leadership. There was a significant positive correlation between workplace ostracism and counterproductive behavior. Otherwise, a significant negative correlation was found between moral leadership, workplace ostracism and counterproductive behavior. Also, this study proved the mediating effect of moral leadership in decreasing workplace ostracism by 79.3% and counterproductive behavior by 36.7%. Conclusion Hospital administrators need to be aware of the significance of moral leadership and apply integrity in the clinical setting to reduce the drawback of isolation on nurses' conduct and increase value for the organization as a whole and nurses in particular. (shrink)

Robert de Sorbon’s De consciencia, edited here, is a pastoral work which concentrates on the examination of conscience as a preliminary to confession. Robert uses the structural motif of the university examination and explores the parallels and contrasts between the relatively severe Chancellor of the university of Paris and the uncompromisingly severe Judge of the Last Judgement. Apart from its pastoral contents the work presents illuminating glimpses of university life in 13th-century Paris. Though known to students in Chambon’s edition of (...) 1902, the De consciencia has hitherto never been printed in full. The reason for this is that Chambon and his 16th and 17th-century predecessors based themselves on a truncated manuscript version which presents only the first part, which constitues no more than half the treatise. An examination of all twenty hitherto identified manuscript versions of the work reveals, however, the existence of as many as four mutually independendent redactions of the work, three of which represent complete versions, whereas the fourth, represented by the Chambon version, is deficient. The present article contains a critical, annotated edition of what is probably the most interesting of the three full redactions, namely the one preserved in Paris, Bibliothèque Nationale, MS Latin 3218. The introduction to the edition contains sections discussing the contents of the work, its redactions and paraphrases, its structure and sources, as well as the relationship to Robert de Sorbon’s other works, including his sermons. (shrink)

According to doxastic involuntarism, we cannot believe at will. In this paper, I argue that permissivism, the view that, at times, there is more than one way to respond rationally to a given body of evidence, is consistent with doxastic involuntarism. Rober :837–859, 2019a, Philos Phenom Res 1–17, 2019b) argues that, since permissive situations are possible, cognitively healthy agents can believe at will. However, Roeber fails to distinguish between two different arguments for voluntarism, both of which can be shown (...) to fail by proper attention to different accounts of permissivism. Roeber considers a generic treatment of permissivism, but key premises in both arguments depend on different, more particular notions of permissivism. Attending to the distinction between single-agent and inter-subjective versions of permissivism reveals that the inference from permissivism to voluntarism is unwarranted. (shrink)

Arabo-Islamic alchemy enjoyed considerable popularity until well into the 19th and 20th centuries. It can be considered both as a predecessor of modern chemistry and as a natural philosophy whose purpose is to explain the world. Yet one of the unresolved questions concerning alchemy is how one was supposed to learn it, since it was an art that was meant to be kept secret and only revealed to a few select individuals. While the practicalities of the learning experience remain obscure, (...) it is noteworthy that Arabic alchemical literature often makes use of the literary form of the dialogue, a genre strongly associated with teaching and learning. This paper focuses on three Arabic dialogues on alchemy; namely, Masāʼil Khālid li-Maryānus al-rāhib, Kitāb Mihrārīs al-ḥakīm and Risālat al-ḥakīm Qaydarūs, and discusses how the transfer of secret knowledge is represented. I will focus on the literary frames of these texts, their mise-enscéne, the master-disciple relation as represented within them, and the question of interaction between unequal partners. (shrink)