Dependence of the persistent photoconductivity in doping-modulated a-Si: H multilayers on the exposure temperature

Abstract

We find that the photo-induced excess conductivity (persistent photoconductivity, PPC) in doping-modulated hydrogenated amorphous silicon (a-Si: H) is thermally activated for exposure temperatures above 220 K in agreement with Kakalios and with Hundhausen and Ley. However, we find a temperature regime between 80 and 220 Kin which the PPC measured at 300 K is independent of excitation temperature. Whether the PPC is excited in the thermally activated regime above 220 K or in the temperature-independent regime, the annealing occurs at 410 K. The pre-exponential factor and the activation energy of PPC are related by the Meyer-Neldel rule independent of the excitation temperature.     

Detention conditions’ impact on anxiety and depression levels of prisoners

IntroductionThe mortality rate in Portuguese prisons is the highest of the European Community. Two thirds of these deaths concern individuals in preventive detention, who have not yet faced trial.ObjectiveOur objective is to examine the impact of different detention conditions on the anxiety and depression rates of inmates. We predict that the anxiety and depression rates would be higher for inmates in preventive detention.ResultsResults have shown that the depression rates of inmates in open detention were the lowest. Depression rates were highest among inmates in preventive detention.DiscussionThe results do not allow us to confirm our hypothesis regarding anxiety rates. Considering our results, inmates in preventive detention seem to represent the most vulnerable population of the prison in relation to the two other groups.     

Attentional biases to threat in social anxiety disorder: time to focus our attention elsewhere?

Background: Cognitive models propose that attentional biases to threat contribute to the maintenance of social anxiety disorder (SAD). However, the specific characteristics of such biases are still object to debate.

Objectives: The current study aimed to disentangle effects of trait and state social anxiety on attention allocation towards social stimuli.

Methods: Participants with SAD (n?=?67) and healthy controls (n?=?62) completed three visual search tasks while their eye movements were recorded. Half of the participants in each group were randomly assigned to a state anxiety induction.

Results: Contrary to our predictions, neither trait nor state social anxiety was associated with a facilitated attention to or a delayed disengagement from threat. However, participants with SAD did show reduced fixation durations for threatening stimuli, indicating an avoidance of threat. Induction of state anxiety led to an increased distractibility by threat.

Conclusions: We suggest that attention allocation in SAD is characterized by an avoidant rather than a vigilant attentional bias. Accordingly, our results contradict previous results that associate SAD with facilitated attention to threat and existing approaches to modify attentional biases, that aim to decrease attention towards threatening stimuli.     

Teaching Violence Prevention

Summary

This paper defines violence from a Public Health perspective. It offers recommendations for creating a curriculum to teach health professionals about the critical issues involved in establishing a more peaceful society. Specific learning objectives, teaching methods, and examples of group discussion activities are presented, as well as an extensive bibliography. The intention is to make available to health professionals information that promotes an understanding of the overall impact of violence in our society, and specific skills in the recognition and management of victims of violence. Because of the importance of domestic violence as the center of the web of violence in our culture, emphasis is placed on understanding the dynamics and effects of this specific form of violent behavior. Teaching violence prevention occupies a critical role for medical education.     

Eye movement desensitization and reprocessing (EMDR) therapy in the treatment of victims of domestic violence: A pilot study

IntroductionThe purpose of this study was to determine the effectiveness of EMDR in reducing PTSD symptoms, anxiety and depression.MethodThirty-six women participated in this study; 12 were treated with EMDR, 12 received eclectic psychotherapy, and 12 were assigned to the control group.ResultWomen in the EMDR condition showed significantly reduced PTSD and anxiety compared with those in the eclectic psychotherapy condition. The two psychotherapy approaches led to significantly reduced scores (PTSD, depression, anxiety) after treatment compared to the control group. These effects were maintained at the 6-month follow-up. Finally, effect sizes for the IES and STAI scores were greater for the subjects in the EMDR condition.ConclusionThis study met our expectations in the sense that our findings confirm the advantages and the potential of EMDR.     

Objects of Heart's Desire

SUMMARY

We enter the world with an expectancy of love and a need to love. That which we love is dictated by our histories and limited by our fears. This paper explains some of the consequences of that for the individual and the couple.     

Are Our Concepts conscious state and conscious creature Vague?

Intuitively it has seemed to many that our concepts conscious state and conscious creature are sharp rather than vague, that they can have no borderline cases. On the other hand, many who take conscious states to be identical to, or realized by, complex physical states are committed to the vagueness of those concepts. In the paper I argue that conscious state and conscious creature are sharp by presenting four necessary conditions for conceiving borderline cases in general, and showing that some of those conditions cannot be met with conscious state. I conclude that conscious state is sharp, and the conclusion is then extended to conscious creature. The paper ends with a brief discussion of some implications.

Why We Must Leave Our Organs to Others

Organ procurement presents several ethical concerns (from what constitutes acceptable criteria for death to issues involved in specifically designating to whom an organ can be given), but none is more central than the concern for what are appropriate means for acquiring organs. The following discussion attempts a different perspective on the issue of organ procurement by arguing that, rather than appealing to our charitable consciences or our pocketbooks, relinquishing our organs after death in this day and age is, in fact, obligatory for most people. Each of us is pressed by the growing demand for our organs should we die “rightly,” and that desperate need has risen to such a level that not to release our organs for transplantation would constitute a serious moral wrong.     

A French validation of the short Need For Affect scale

IntroductionThe way we interact with our environment depends on our spontaneous tendency to approach or to avoid emotional experiences triggered by that environment. This dimension of the emotional experience is called the need for affect, that is, the tendency of individuals to adopt approaching or avoidance behaviour with regard to emotional stimuli.MethodsThe Need For Affect (NFA) Scale has been the subject of numerous studies since the validation of the original version (Maio & Esses, 2001) and its short version (Appel et al., 2012). However, no validation of the latter scale has been conducted in French. We propose a French version of the short NFA scale on a student sample and a sample from the general population.ResultsWe found the structure of the original scale in a French translation (of the English version). In addition, invariance tests showed that this structure remained the same for both samples.ConclusionWe recommend the use of this version of the short NFA scale for studies conducted on French-speaking samples.     

The Scandal of Reason: A Critical Theory of Political Judgment

Abstract

Carruthers argues that knowledge of our own propositional attitudes is achieved by the same mechanism used to attain knowledge of other people’s minds. This seems incompatible with ‘privileged access’ – the idea that we have more reliable beliefs about our own mental states, regardless of the mechanism. At one point Carruthers seems to suggest he may be able to maintain privileged access, because we have additional sensory information in our own case. We raise a number of worries for this suggestion, concluding that Carruthers’s new theory cannot clearly preserve the superior reliability of our beliefs about our own attitudes.     

On an Intuitionistic Modal Logic

In this paper we consider an intuitionistic variant of the modal logic S4 (which we call IS4). The novelty of this paper is that we place particular importance on the natural deduction formulation of IS4— our formulation has several important metatheoretic properties. In addition, we study models of IS4— not in the framework of Kirpke semantics, but in the more general framework of category theory. This allows not only a more abstract definition of a whole class of models but also a means of modelling proofs as well as provability.     

Awareness of one's body as subject and object

Abstract

This paper rejects Hume's famous claim that we never perceive our selves, by arguing that, under conditions specified, our perception of our bodies is perception of our selves. It takes as its point of departure Quassim Cassam's defence of a position to a similar effect but puts a different interpretation on the distinction between perceiving the body as an object, having spatial attributes, and perceiving it as a self or subject of experiences.     

Effects of workaholism on volunteer firefighters’ performance: a moderated mediation model including supervisor recognition and emotional exhaustion

ABSTRACT

Background and Objectives: Although workaholism has been associated with job performance, the mechanisms that explain this relationship remain unclear. In this study, we investigated the conditional indirect effects of workaholism on performance via emotional exhaustion, across low and high levels of supervisor recognition.

Methods: We conducted an empirical cross-sectional study using a sample of 1028 volunteer firefighters who completed a self-report questionnaire assessing workaholism, emotional exhaustion, work performance, and supervisor recognition.

Results: Tests of latent interactions were performed using the latent moderated structural equation modeling approach. Consistent with our predictions, results revealed that the negative indirect effects of workaholism on performance, through emotional exhaustion, were stronger when supervisor recognition was low.

Conclusions: Theorical contributions and perspectives, as well as implications for practice are discussed.     

Do we weep for Cordelia?

Abstract

Much of the contemporary debate concerning the nature and role of fictive emotions has argued that we do feel garden-variety emotions for fictional characters; the puzzle has been to account for this, given our knowledge of their fictional status. In this paper I argue that many of the emotional responses we have towards fictional characters are nothing like the emotions we feel in ordinary life. The implications for our engagement with literary fictions are subsequently examined.     

Toward a Comprehensive Theology of Divine Action

This paper proposes a fundamental premise for the conversation between science and theology: In our experience of the natural world we encounter an excess of awareness and of meaning that overwhelm our perceptions, language, and thought. We attempt to construct the coherence of our awareness through our science, and we attempt to render it meaningful in our thoughts and language. Metaphor and symbol are primary vehicles for our attempts at meaning. Since its task is to articulate meaning, theology must acknowledge this premise, if it is to engage the sciences adequately.     

Are There Algorithms That Discover Causal Structure?

There have been many efforts to infer causation from association byusing statistical models. Algorithms for automating this processare a more recent innovation. In Humphreys and Freedman[(1996) British Journal for the Philosophy of Science 47, 113–123] we showed that one such approach, by Spirtes et al., was fatally flawed. Here we put our arguments in a broader context and reply to Korb and Wallace [(1997) British Journal for thePhilosophy of Science 48, 543–553] and to Spirtes et al.[(1997) British Journal for the Philosophy of Science 48, 555–568]. Their arguments leave our position unchanged: claims to have developed a rigorous engine for inferring causation from association are premature at best, the theorems have no implications for samples of any realistic size, and the examples used to illustrate the algorithms are indicative of failure rather than success. The gap between association and causation has yet to be bridged.     

Assessing decision-making style in French-speaking populations: Translation and validation of the general decision-making style questionnaire

IntroductionIndividual differences in decision-making are a fundamental component of our understanding of the decision-making process. Scott and Bruce (1995) developed the General Decision-Making Style (GDMS) questionnaire to assess five decision-making styles: rational, intuitive, dependent, avoidant, and spontaneous.ObjectiveThe purpose of our study was to translate and validate the GDMS into French. This measure has been used frequently to assess decision-making style since its creation. Yet, the scale is currently unavailable in French despite being already available in Slovak, Italian, and Swedish.MethodFollowing best practices for scale translation (e.g., Vallerand, 1989), the original version of the GDMS was administered to a group of 345 English-speaking participants and the translated version of the questionnaire was administered to a group of 325 French-speaking participants.ResultsThe properties of the translated questionnaire were then compared to those of the original questionnaire. Results of item-level, scale-level and measurement invariance analyses demonstrate that the translated measure, the Échelle des styles décisionnels, is a valid and reliable assessment of decision-making style in French-speaking populations.ConclusionThis measure already exists in languages that are much less commonly spoken than French. The newly translated Échelle des styles décisionnels will now allow researchers to validly assess decision-making style in French-speaking populations, thereby greatly increasing the ability to assess cross-cultural stability of decision-making theories.     

When grandiose meets vulnerable: narcissism and well-being in the organizational context

ABSTRACT

Objective

In this article, we explore the implications of vulnerable narcissism in an organizational context, particularly with regard to work-related well-being and leader–follower interactions. We tested whether employees’ vulnerable narcissism affects their work engagement and emotional exhaustion. Furthermore, we examined whether leaders’ grandiose narcissism impacts such as working relationships. We used job demands-resources theory in order to derive our hypotheses at the intra- and inter-individual level. Method: Multi-level analyses in a sample of 235 followers in 71 teams confirmed some of our hypotheses. Results: We demonstrate that vulnerable narcissism is positively related to followers’ emotional exhaustion and negatively related to work engagement. Moreover, leaders’ grandiose narcissism exacerbates the negative relationship between followers’ vulnerable narcissism and their work engagement. Conclusions: Our results indicate that the various facets of narcissism play an important role in an organizational context and suggest that vulnerable narcissism in particular, which has been largely neglected in previous research, is an important determinant of work-related well-being. Further, we form a holistic understanding of the leadership process by emphasizing the interaction between leaders’ and followers’ personalities, adding to the leadership literature by integrating leader and follower characteristics.