Semantics for existential graphs

This paper examines Charles Peirce's graphical notation for first-order logic with identity. The notation forms a part of his system of existential graphs, which Peirce considered to be his best work in logic. In this paper a Tarskian semantics is provided for the graphical system.     

Age differences in discrimination of simulated single-formant frequency transitions

We studied auditory discrimination of simulated single-formant frequency transitions that resembled portions of certain speech consonants. Significant age differences in transition discrimination occurred; both children and older adults required larger acoustic differences between transitions for discrimination than did teenagers/young adults. Longer transitions were more easily discriminated than shorter transitions by all listeners, and there were no differences between discriminations of rising and falling transitions. Teens/young adults and older adults, but not children, required larger frequency differences to discriminate frequency transitions followed by a steady-state sound than for transitions alone. There were also age differences in discrimination of steady-state sounds. These developmental-perceptual differences may help explain why children and older adults who have good pure-tone sensitivity may experience difficulty in understanding speech.     

Family interference with work and workplace cognitive failure: The mitigating role of recovery experiences

The first goal of this study was to test whether family interference with work (FIW) is positively related to increased workplace cognitive failure (WCF), which is defined as errors made at work that indicate lapses in memory (e.g., failing to recall work procedures), attention (e.g., not fully listening to instruction), and motor function (e.g., unintentionally pressing control switches on machines). The second goal was to determine whether recovery experiences (psychological detachment and relaxation) during free time on evenings and weekends can mitigate (weaken) the positive relationship between FIW and WCF. Results based on data collected from 118 water utility employees suggest that FIW is indeed related to more WCF, and that psychological detachment from work mitigates this positive relationship. It was relatively less evident that relaxation plays such a mitigating role.     

Performing gender justice: the 2005 woman-led prayer in New York

On March 18, 2005, a group of American Muslim women and men participated in a Friday prayer led by Dr. Amina Wadud, who also gave the Friday sermon. Widely publicized in various media and debated among Muslims around the world, this event was hailed as a turning point in Muslim gender discourses by the organizers and many media representatives. This article describes the prayer as a performance and argues that the organizers, participants, and media representatives all participated in the production of meaning embodied by the prayer. According to the organizers, the achievement of Qur'anic gender justice required changes in Muslim communities, and various forms of media were of vital importance for the discussion and realization of this goal. As such, the prayer was an act of symbolic significance, which despite its discursive, spatial, and temporal limitations, became much more than an act of Islamic worship.     

Being bored: Heidegger on patience and melancholy

In his reflections on ethics, Descartes distances himself from the eudaimonistic tradition in moral philosophy by introducing a distinction between happiness and the highest good. While happiness, in Descartes’s view, consists in an inner state of complete harmony and satisfaction, the highest good instead consists in virtue, i.e. in ‘a firm and constant resolution' (e.g. CSMK: 325/AT 5: 83) to always use our free will well or correctly. In Section 1 of this paper, I pursue the Cartesian distinction between happiness and the highest good in some detail. In Section 2, I discuss the question of how the motivation to virtue should be accounted for within Descartes’s ethical framework. In Section 3, I turn to Descartes’s defence of the view that virtue, while fundamentally distinct from happiness, is nevertheless sufficient for obtaining it. In the final section of the paper (Section 4), my concern is instead with a second and sometimes neglected distinction that Descartes makes between two different senses of the highest good. I show that this distinction does not remove the non-eudaimonistic character of Descartes’s ethics suggested in Section 1, and present two reasons for why the distinction is important for Descartes’s purposes.     

Cognitive versus Non‐Cognitive Individual Differences and the Dynamics of Career Success

We examine the effects of cognitive and non‐cognitive individual differences on the dynamics of career success (i.e. pay, occupational status) by comparing temporal changes in the validities of two measures of personality—Core Self Evaluations and the Big Five personality dimensions—to temporal changes in the validities of two standard intelligence tests. The main finding of two studies based on large representative samples is that the validity of intelligence clearly increases over time, whereas the validity of personality tends to be stable, indicating that intelligence, but not personality, drives career success.