Kinetics of diffusion via divacancies in a concentrated random fcc alloy

The diffusion kinetics in a concentrated fcc alloy are described by means of divacancies. The model chosen is the random alloy model with bound divacancies. We show that for the fcc structure the Manning formalism developed originally for monovacancies can be used intact to describe diffusion via divacancies. Monte Carlo simulation results for both tracer and collective correlation factors are in good agreement with the results of the formalism for a wide range of the component atom exchange frequencies with the divacancy except for the slower-moving component.     

Phonon densities of states of gamma-cerium and delta-cerium measured by time-of-flight inelastic neutron scattering

Time-of-flight inelastic neutron scattering spectra were measured on cerium metal at temperatures near the fcc (gamma)-to-bcc (delta) transition temperature. Phonon density-of-states (DOS) curves were extracted from data acquired over a wide range of momentum transfers. A large softening of the phonon DOS was found in going from gamma-cerium to delta-cerium, and this accounts for an increase in vibrational entropy of (0.71 +/- 0.05)k _B/atom. To be consistent with the latent heat of the gamma-delta transition, this increase in vibrational entropy must be accompanied by a large decrease in electronic entropy. The results not only confirm the recent discovery of a significant electronic contribution to the gamma-delta transition but also suggest that it may be twice that previously reported.     

Emotional Processing Therapy for post traumatic stress disorder

While prolonged exposure is considered one of the “gold standard” and recommended treatments for post traumatic stress disorder (PTSD), it has been poorly utilised in clinical practice. Individuals with PTSD often find it too distressing to confront memories, and therapists may be uncomfortable using the therapy. A new Emotional Processing Therapy is described in which an emotional approach to prolonged exposure provides individuals with a new insight into how trauma is processed. A conceptual analysis of exposure suggests that it is exposure to distressing emotional experiences which is a key element. Viewing it as an emotion-based therapy, allows the creative addition of new emotional elements. Through exploring the individual’s emotional processing style, previously learned and unhelpful patterns can be addressed, and the addition of an “emotional preparation” phase helps them understand why it is important to face emotionally distressing memories before exposure sessions begin. Emotional Processing Therapy is intuitive and makes sense to those affected by PTSD. It is framed in an emotional context and is presented as part of a lifestyle change that may reduce the likelihood of psychological problems developing in the future.     

General and supplementary factors of personality in genetic and environmental correlation matrices

Genetic and environmental correlation matrices among 7 personality scales were estimated, using samples of adult and young adult twins from Australia (2081 and 1178 pairs, respectively). A general factor of personality and two supplemental factors were obtained in each. The supplemental factors were tentatively identified as Social conformity and Other-dependence. Factors from the genetic and environmental correlations replicated well across samples, and they were similar in both the genetic and environmental covariation. It was concluded that the structure of personality is inherent in the evolved phenotype, and is not the immediate consequence of either genetic or environmental organizing factors.     

The Awakening of Global Reason The Logical and Ontological Foundation of Integral Science

This article suggests that we are in the midst of a profound dimensional shift in our rational capacity to process reality, and seeks to articulate the implications of this evolutionary shift to global reason for our scientific enterprise. As we enter the 21st century it is unmistakably clear that we are in the midst of an unprecedented shift in the human condition—a global renaissance that affects every aspect of our cultural lives, our self-understanding, and, of course, our rational enterprise. This evolutionary transformation, when seen through the expanded global lens, has been emerging through the ages on a global scale. In this brief reflection I suggest that this advance in our technology of mind is of an order of magnitude that is so radical and comprehensive that the very concept of a person, of what it means to be human, of our encounter with Reality and all our hermeneutical arts, including the sciences, are likewise taken to a higher global dimension. I suggest that the diverse voices included in this special edition are best situated in the context of this global awakening of reason, scientific knowing, and the holistic worldview.     

Emotional and hemispheric asymmetries in shifts of attention: An ERP study

Inhibition of return (IOR) refers to the larger response time to cued targets appearing at long cue-to-target intervals. Given emotion–attention interactions and associated visual field (VF) asymmetries, we examined the effects of emotions and hemispheric processing on object- and location-based IOR. We expected reduced IOR and right hemispheric bias accompanied by differences in event-related potentials (ERPs) including lack of suppression of cued N1 and enhancement of Nd components for sad targets. Reaction times and ERPs were recorded in an exogenous cuing detection task using happy and sad schematic faces. Results revealed reduced IOR for left compared to right VF with sad faces but no such asymmetry for happy faces. Cued N1 amplitudes were suppressed for happy targets but not for sad targets presented to the left VF. Nd amplitudes were enhanced for right-hemispheric sad faces especially with object-based IOR. The results indicate right-hemispheric advantage in the capture of attention by negative emotion especially with object-based selection.