A stochastic model for wound healing

We present a discrete stochastic model which represents many of the salient features of the biological process of wound healing. The model describes fronts of cells invading a wound. We have numerical results in one and two dimensions. In one dimension we can give analytic results for the front speed as a power series expansion in a parameter, p, that gives the relative size of proliferation and diffusion processes for the invading cells. In two dimensions the model becomes the Eden model for p near 1. In both one and two dimensions for small p, front propagation for this model should approach that of the Fisher-Kolmogorov equation. However, as in other cases, this discrete model approaches Fisher-Kolmogorov behavior slowly.Comment: 16 pages, 7 figure

Children’s experiences of domestic violence and abuse: siblings’ accounts of relational coping

This article explores how young people see their relationships, particularly their sibling relationships, in families affected by domestic violence, and how relationality emerges in their accounts as a resource to build an agentic sense of self. The ‘voice’ of children is largely absent from domestic violence literature, which typically portrays them as passive, damaged and relationally incompetent. Children’s own understandings of their relational worlds are often overlooked, and consequently existing models of children’s social interactions give inadequate accounts of their meaning-making-in-context. Drawn from a larger study of children’s experiences of domestic violence and abuse, this paper uses two case studies of sibling relationships to explore young people’s use of relational resources, for coping with violence in the home. The paper explores how relationality and coping intertwine in young people’s accounts, and disrupts the taken for granted assumption that children’s ‘premature caring’ or ‘parentification’ is (only) pathological in children’s responses to domestic violence. This has implications for understanding young people’s experiences in the present, and supporting their capacity for relationship building in the future

Implementing Faith Community Nursing Interventions to Promote Healthy Behaviors in Adults

Purpose: To report the implementation of faith community nursing interventions to promote healthy behaviors in adults. Callaghan (2015) reported the development of this intervention, which was based on previous studies that support the importance of spiritual growth on the initiative and responsibility for self-care across the life span (Callaghan, 2003, 2005, 2006). The intervention also included strategies to increase self-efficacy of healthy behaviors. The results of three separate implementations of the health promotion intervention are presented in this report. Procedures: Three health promotion programs were implemented over a five year period (2010 – 2015). These programs were offered for the following populations/settings: families consisting of adolescents, adults, and/or older adults in a faith community; nursing students in a university community; older adults in an urban community. The outcomes of the programs were measured by the Health-Promoting Lifestyle Profile II (HPLPII) scale using paired t-Tests to test the hypothesis that post-intervention scores would be higher than the pre-intervention scores. Findings: The mean scores of participants in the health promotion programs all increased from pre-intervention to post-intervention. Significant differences were found in the nursing student and the older adult samples. Conclusions: The results of these studies suggest that faith community nursing-led health promotion interventions that focus on spiritual growth as the foundation of health as well as use self-efficacy enhancing strategies can increase participants’ practice of healthy behaviors. These programs also give faith community nurses an opportunity to expand practice beyond the walls of their faith communities

The Development of a Faith Community Nursing Intervention to Promote Health across the Life Span

Purpose: To report the development of a faith community nursing intervention to promote health across the life span. Studies by Callaghan (2003, 2005, 2006), that investigated the relationships among self-care agency, self-care self-efficacy, and health-promoting self-care behaviors, support the importance of spiritual growth on older adults’, adults’, and adolescents’ initiative and responsibility for self-care. This report will focus on applying these results and the research evidence that supports the integration of these concepts in the development of a health promotion intervention. Procedures: Data was merged from Callaghan’s studies (2003, 2005, 2006) in order to investigate to what extent do self-care agency and self-care self-efficacy explain health-promoting self-care behaviors across the life span. The sample consisted of 870 subjects with ages ranging from 14 to 98 years. The instrumentation included the following scales: Exercise of Self-Care Agency, Self-Rated Abilities for Health Practices, Health-Promoting Lifestyle Profile II, demographic questionnaire. The data was analyzed using a canonical correlation statistic. Findings: A significant canonical variate with a canonical correlation of .81 (p \u3c .001) accounting for 65% of the variance explained was identified. The canonical loadings identified all of the study variables as significantly contributing to this variate. Conclusions: The study results support the integration of the concepts of self-care agency, self-care self-efficacy, and health-promoting self-care behaviors in the development of a faith community nursing intervention to promote health across the life span. The development of an intervention based on this evidence is presented

Evaluation of Unmanned Aircraft Flying Qualities Using a Stitched Learjet Model

In recent years, military UAVs have taken over missions that were too dull, dirty, or dangerous for manned aircraft. The increased demand has led to a build-fly-fix-fly development mentality, plaguing the early lifecycle with staggering mishap rates. Currently, MIL-STD-1797 lists flying qualities for UAVs as TBD, and the standards for manned fixed wing are inadequate when applied to UAVs. In an effort to expand the database of UAV flying qualities, an analysis was completed on a Simulink model of an LJ-25D developed from Calspans Variable Stability System aircraft at the United States Test Pilot School. Three maneuvers were simulated: (1) a non-precision, non-aggressive climbing spiral, (2) a precision, non-aggressive side step landing, and (3) a precision, non-aggressive aerial refueling task. These maneuvers were chosen to evaluate the performance and workload of the aircraft as four stability and control parameters were scaled. The data were utilized in identifying trends between the scaled stability and control parameters and resulting workload and performance metrics. Thumbprint plots were generated to identify Level 1, Level 2, and Level 3 flying qualities and compared to MIL-STD-1797 plots. Results point to utilizing a combination of classical aircraft literal factors, such as ςsp and CAP, with newly developed mathematical techniques, such as L2 norm and TIC, to assess the workload of the flight controller and performance during the maneuver

Alien Registration- Callaghan, Annie M. (Portland, Cumberland County)

https://digitalmaine.com/alien_docs/24215/thumbnail.jp