2,147 research outputs found
Communication of military couples during deployment predicting generalized anxiety upon reunion
This study draws on the emotional cycle of deployment model (Pincus, House, Christenson, & Adler, 2001) to consider how the valence of communication between military personnel and at-home partners during deployment predicts their generalized anxiety upon reunion. Online survey data were collected from 555 military couples (N = 1,110 individuals) once per month for 8 consecutive months beginning at homecoming. Dyadic growth curve modeling results indicated that peopleâs anxiety declined across the transition. For at-home partners, constructive communication during deployment predicted a steeper decline in anxiety over time. For both returning service members and at-home partners, destructive communication during deployment predicted more anxiety upon reunion but a steeper decline in anxiety over time. Results were robust beyond the frequency of communication during deployment and a host of individual, relational, and military variables. These findings advance the emotional cycle of deployment model, highlight the importance of the valence of communication during deployment, and illuminate how the effects of communication during deployment can endure after military couples are reunited
Military Childrenâs Difficulty with Reintegration after Deployment: A Relational Turbulence Model Perspective
This study drew on the relational turbulence model to investigate how the interpersonal dynamics of military couples predict parentsâ reports of the reintegration difficulty of military children upon homecoming after deployment. Longitudinal data were collected from 118 military couples once per month for 3 consecutive months after reunion. Military couples reported on their depressive symptoms, characteristics of their romantic relationship, and the reintegration difficulty of their oldest child. Results of dyadic growth curve models indicated that the mean levels of parentsâ depressive symptoms (H1), relationship uncertainty (H2), and interference from a partner (H3) were positively associated with parentsâ reports of military childrenâs reintegration difficulty. These findings suggest that the relational turbulence model has utility for illuminating the reintegration difficulty of military children during the postdeployment transition
Verbal Response Modes in Action:Microrelationships as the Building Blocks of Relationship Role Dimensions
Dimensions of interpersonal relationships, such as attentiveness, directiveness, and presumptuousness, have typically been assessed through impressionistic ratings or by aggregate scores derived from coding of specific (e.g., verbal) behaviors. However, the meanings of these dimensions rest on the interpersonal microrelationships that are actually observed by the raters or coders. In this qualitative study, the way these global relationship qualities were built from microrelationships at the utterance level was examined in passages from one medical interaction. Applications of microrelationships to future communications research are suggested
Asymmetry of temporal cross-correlations in turbulent shear flows
We investigate spatial and temporal cross-correlations between streamwise and
normal velocity components in three shear flows: a low-dimensional model for
vortex-streak interactions, direct numerical simulations for a nearly
homogeneous shear flow and experimental data for a turbulent boundary layer. A
driving of streamwise streaks by streamwise vortices gives rise to a temporal
asymmetry in the short time correlation. Close to the wall or the bounding
surface in the free-slip situations, this asymmetry is identified. Further away
from the boundaries the asymmetry becomes weaker and changes character,
indicating the prevalence of other processes. The systematic variation of the
asymmetry measure may be used as a complementary indicator to separate
different layers in turbulent shear flows. The location of the extrema at
different streamwise displacements can be used to read off the mean advection
speed; it differs from the mean streamwise velocity because of asymmetries in
the normal extension of the structures.Comment: 10 pages, 7 Postscript figures (low quality due to downsizing
Convergence and Divergence of Themes in Successful Psychotherapy: An Assimilation Analysis
Theme convergence is the linking of seemingly unrelated problem domains as they advance through assimilation stages-a developmental sequence of cognitive and affective changes through which problematic content is hypothesized to pass during successful psychotherapy. Theme divergence is the contradiction or conflict of solutions to different problems, so that progress in one domain leads to stagnation or regression in another domain. An intensive qualitative method called assimilation analysis was used to examine theme convergence and divergence in a successful psychodynamic psychotherapy with a 20âyrâold female patient. Because specific problems often fail to progress monotonically, even in successful psychotherapy cases, it is suggested that clients\u27 problems cannot be resolved in isolation; instead, they may influence each other toward resolution or stagnation in complex and unpredictable ways
Mental Health Symptoms and The Reintegration Difficulty of Military Couples Following Deployment: A Longitudinal Application of The Relational Turbulence Model
Objective
Understanding the factors that predict the reintegration difficulty of military couples during the postdeployment transition has important implications for theory, research, and practice. Building on the logic of the relational turbulence model, this paper evaluates the relationship processes of reunion uncertainty and reintegration interference from a partner as mediators of the connection between people\u27s mental health symptoms and their difficulty with reintegration after deployment. Method
Dyadic longitudinal data were collected from 555 US military couples once per month for 8 consecutive months. Results
Findings mapped the trajectory of reintegration difficulty and suggested reunion uncertainty and reintegration interference from a partner as mediators of the link between people\u27s depressive and posttraumatic stress symptoms and the magnitude of their reintegration difficulty. Conclusion
These results highlight relationship processes as a key domain of intervention to preserve the wellâbeing of military couples during the postdeployment transition
Normal and Abnormal Personality Traits are Associated with Marital Satisfaction for both Men and Women: An ActorâPartner Interdependence Model Analysis
Research has demonstrated associations between relationship satisfaction and personality traits. Using the ActorâPartner Interdependence Model, we explored associations between self-reported relationship satisfaction in couples (n = 118) and various measures of normal and abnormal personality, including higher-order dimensions of PE/Extraversion, NE/Neuroticism, Constraint (CON), and their lower-order facets. We also examined gender differences and moderators of associations. Consistent with the Vulnerability Stress Adaptation Model, self- and partner-reported NE and PE were related to satisfaction, and their lower-order traits demonstrated differential associations with satisfaction. Further, abnormal personality traits specific to the interpersonal domain and personality disorder symptoms demonstrated effects. Relationship length emerged as a significant moderator, with associations weakening as relationship duration increased
A posteriori optimization of parameters in stabilized methods for convection-diffusion problems --- Part I
Stabilized finite element methods for convection-dominated problems require the choice of appropriate stabilization parameters. From numerical analysis, often only their asymptotic values are known. This paper presents a general framework for optimizing the stabilization parameters with respect to the minimization of a target functional. Exemplarily, this framework is applied to the SUPG finite element method and the minimization of a residual-based error estimator and error indicator. Benefits of the basic approach are shown and further improvements are discussed
Isolas of 2-Pulse Solutions in Homoclinic Snaking Scenarios
Homoclinic snaking refers to the bifurcation structure of symmetric localised roll patterns that are often found to lie on two sinusoidal âsnakingâ bifurcation curves, which are connected by an infinite number of ârungâ segments along which asymmetric localised rolls of various widths exist. The envelopes of all these structures have a unique maximum and we refer to them as symmetric or asymmetric 1-pulses. In this paper, the existence of stationary 1D patterns of symmetric 2-pulses that consist of two well-separated 1-pulses is established. Corroborating earlier numerical evidence, it is shown that symmetric 2-pulses exist along isolas in parameter space that are formed by parts of the snaking curves and the rungs mentioned above
The Stability of Magnetized Rotating Plasmas with Superthermal Fields
During the last decade it has become evident that the magnetorotational
instability is at the heart of the enhanced angular momentum transport in
weakly magnetized accretion disks around neutron stars and black holes. In this
paper, we investigate the local linear stability of differentially rotating,
magnetized flows and the evolution of the magnetorotational instability beyond
the weak-field limit. We show that, when superthermal toroidal fields are
considered, the effects of both compressibility and magnetic tension forces,
which are related to the curvature of toroidal field lines, should be taken
fully into account. We demonstrate that the presence of a strong toroidal
component in the magnetic field plays a non-trivial role. When strong fields
are considered, the strength of the toroidal magnetic field not only modifies
the growth rates of the unstable modes but also determines which modes are
subject to instabilities. We find that, for rotating configurations with
Keplerian laws, the magnetorotational instability is stabilized at low
wavenumbers for toroidal Alfven speeds exceeding the geometric mean of the
sound speed and the rotational speed. We discuss the significance of our
findings for the stability of cold, magnetically dominated, rotating fluids and
argue that, for these systems, the curvature of toroidal field lines cannot be
neglected even when short wavelength perturbations are considered. We also
comment on the implications of our results for the validity of shearing box
simulations in which superthermal toroidal fields are generated.Comment: 24 pages, 12 figures. Accepted for publication in ApJ. Sections 2 and
5 substantially expanded, added Appendix A and 3 figures with respect to
previous version. Animations are available at
http://www.physics.arizona.edu/~mpessah/research
- âŚ