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Freeman R.H.,Northcentral University
Procedia Computer Science | Year: 2015

In rocket engine failures of F-1 and Titan-II, chamber combustion instabilities (CI) caused damage, reflecting behavioral complexities at the component level. Combustion chamber walls with embedded acoustic nodes self-excited by the heat released to cause amplification of acoustic oscillations, showed increases in the thermo-kinetic related pressure. Although the causes of the failed launch were determined decades after the accident, the problem-solving process identified the CI problem domain with information describing the internal representation of the problem. Rocket engine complexity may be described by the high number of component parts contained; alternatively, of the constituent processes occurring. Interactive behaviors not accounted for, occur at the interface between the parts or result from coupling of different processes within the combustion chamber. Unlike monolithic systems, rocket engines exhibit performance behaviors emergent, unpredictable and uncoordinated. Over half propulsion technologies of prospective mission competence have a Technical Readiness Level (TRL) less than 5. However, operational risk needs mitigation through increased development of technological readiness related to not only structural performance but to processes enacted of their functions. Increasingly complex propulsion technologies and the thousands of stakeholder requirements needed for analysis are important for framing problems to be solved. The purpose of this paper is to correlate complexity of propulsion technology at the subsystem level with development of technological readiness for performance reliability. Nonlinear performance behaviors connote system complexity. © 2015 The Authors. Published by Elsevier B.V.


Pilcher J.W.,Baylor University | Bedford L.,Northcentral University
Journal for Nurses in Staff Development | Year: 2011

To what extent are nurses willing to learn with technology-enhanced tools, such as online education, podcasts, webcasts, mobile learning, and realistic simulations? What factors influence their willingness? This article includes a description of a mixed methodology study that addressed these questions. Nurses of all ages indicated a willingness to learn with a variety of technological tools. Primary determinants of willingness were associated with ease of use, familiarity, convenience, and perceived benefit. © 2011 Lippincott Williams & Wilkins, Inc.


Laszloffy T.,Northcentral University | Habekost J.,Alliant International University
Journal of Marital and Family Therapy | Year: 2010

Approximately 60% of accredited MFT master's programs now offer a single course devoted to diversity and oppression, which is noteworthy given that this is not mandated by accreditation standards. For educators and trainers seeking guidance on how to most effectively teach diversity issues and train therapists who will be culturally competent, the MFT literature does an excellent job of providing support for enhancing cultural awareness, for example, cognizance of, insight into, and knowledge about diversity issues. However, far less attention is focused on assisting educators in how to enhance cultural sensitivity, for example, attunement to, emotional resonance with, and meaningful responsiveness to the needs and feelings of others. This article presents a model for how to teach about issues of diversity in ways that promote both cultural awareness and sensitivity but with emphasis on enhancing sensitivity through the use of a series of experiential tasks. © 2010 American Association for Marriage and Family Therapy.


Harris E.,Naval Health Research Center | McNamara P.,Boston University | McNamara P.,Northcentral University | Durso R.,Boston University
Journal of Geriatric Psychiatry and Neurology | Year: 2013

Background: In previous studies among patients with Parkinson disease (PD) who were administered the Apathy Evaluation Scale (AES), between 12% and 51% evidenced clinically significant apathy. Although apathy is a risk factor for dementia, its causes and clinical correlates have not been adequately studied. In particular, side of onset of disease, though a likely predictor of apathy and dementia, has not been thoroughly investigated. Methods: A total of 30 mid-stage patients with PD and 35 community-dwelling elderly control patients (CPs) were administered the AES (self version) along with a battery of cognitive and neuropsy-chiatric assessments. Persons close to patients with PD and CPs completed the AES-other (informant) version about the patient or CP. Multiple linear regression analysis examined predictors of apathy severity after controlling for mood, levodopa dosage equivalents (LDEs), gender, age, and disease severity (Hoehn-Yahr [H-Y] stage). Results: Patients with right-onset disease more frequently exhibited apathy and evidenced significantly higher total AES scores than left-onset patients with PD or CPs (P < .03). Of all the patients, 42% with right-onset PD versus 11.1% of the patients with left-onset PD exhibited clinically significant levels of apathy. There were no differences for self versus informant scores for right-onset patients with PD. The AES scores were not correlated with depression, stress, anxiety, LDEs, gender, age, and H-Y stage. There were no gender differences for any AES variables. Conclusion: Clinically significant levels of apathy are much more likely to occur in patients with right-onset disease. These patients may be at greater risk of PD-related dementia. © The Author(s) 2013.


Seshadri G.,Brandman University | Seshadri G.,Northcentral University | Knudson-Martin C.,Loma Linda University
Journal of Marital and Family Therapy | Year: 2013

This study focused on how couples managed their interracial and intercultural differences. To understand their experiences, a qualitative grounded theory analysis was used (n=17). Analysis revealed that couples experienced most issues as cultural issues; race only occurred during their interactions with "others." They appeared to organize their responses according to four relationship structures: Integrated, Singularly Assimilated, Coexisting, and Unresolved. Couples in each of these structures managed daily process through four sets of relationship strategies: (a) creating a "we," (b) framing differences, (c) emotional maintenance, and (d) positioning in relationship to familial and societal context. These findings are a step toward a strength-based and research-informed education and clinical interventions for this population. © 2012 American Association for Marriage and Family Therapy.

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