Scaling of Magneto-Quantum-Radiative Hydrodynamic Equations: From Laser-produced Plasmas to Astrophysics

We introduce here the equations of magneto-quantum-radiative hydrodynamics. By rewriting them in a dimensionless form, we obtain a set of parameters that describe scale-dependent ratios of all the characteristic hydrodynamic quantities. We discuss how these dimensionless parameters relate to the scaling between astrophysical observations and laboratory experiments.Comment: 12 page

Periodic Sequences of Arbitrage: A Tale of Four Currencies

This paper investigates arbitrage chains involving four currencies and four foreign exchange trader-arbitrageurs. In contrast with the three-currency case, we find that arbitrage operations when four currencies are present may appear periodic in nature, and not involve smooth convergence to a "balanced" ensemble of exchange rates in which the law of one price holds. The goal of this article is to understand some interesting features of sequences of arbitrage operations, features which might well be relevant in other contexts in finance and economics.Comment: 35 pages, 48 bibliography references, submitted to Metroeconomic

Cognitively Engineering a Virtual Collaboration Environment for Crisis Response

Crisis response situations require collaboration across many different organizations with different backgrounds, training, procedures, and goals. The Indian Ocean Tsunami in 2004 and the Hurricane Katrina relief efforts in 2005 emphasized the importance of effective communication and collaboration. In the former, the Multinational Planning Augmentation Team (MPAT) supported brokering of requests for assistance with offers of help from rapidly deployed military and humanitarian assistance facilities. In the aftermath of Hurricane Katrina, the National Guard Soldiers and active component Army Soldiers assisted other state, federal, and non-government organizations with varying degrees of efficiency and expediency. Compounding the challenges associated with collaboration during crisis situations is the distributed nature of the supporting organizations and the lack of a designated leader across these military, government, nongovernment organizations. The Army Research Laboratory is collaborating with the University of Edinburgh, University o

Periodic Sequences of Arbitrage: A Tale of Four Currencies

This paper investigates arbitrage chains involving four currencies and four foreign ex-change trader-arbitrageurs. In contrast with the three-currency case, we find that arbitrage operations when four currencies are present may appear periodic in nature, and not involve smooth convergence to a "balanced" ensemble of exchange rates in which the law of one price holds. The goal of this article is to understand some interesting features of sequences of arbitrage operations, features which might well be relevant in other contexts in finance and economics.Limits to arbitrage, Four currencies, Recurrent sequences, Asynchronous systems

Faculty and Advisor Advice for Cybersecurity Students: Liberal Arts, Interdisciplinarity, Experience, Lifelong Learning, Technical Skills, and Hard Work

The value of academic advising has been increasingly emphasized in higher education. In this study, attention is given to the most significant types of advice that a sample of cybersecurity faculty and advisors from the Commonwealth of Virginia recommend giving to cybersecurity students. The results show that faculty and advisors recommended that students be aware of six different aspects of cybersecurity education including the value of experience, the need for lifelong learning, the importance of hard work, the need to develop technical skills, the interdisciplinary nature of cybersecurity, and the need to develop liberal arts or professional/soft skills. Implications of the findings include the need to embrace the advising of cybersecurity students, the importance of helping cybersecurity faculty and advisors deliver effective advising, and recognition that good advising is more than simply telling students which classes to take

Sagittal Subtalar and Talocrural Joint Assessment During Ambulation With Controlled Ankle Movement (CAM) Boots

Background: The purpose of the current study was to determine sagittal plane talocrural and subtalar kinematic differences between barefoot and controlled ankle movement (CAM) boot walking. This study used fluoroscopic images to determine talar motion relative to tibia and calcaneal motion relative to talus. Methods: Fourteen male subjects (mean age 24.1 ± 3.5 years) screened for normal gait were tested. A fluoroscopy unit was used to collect images at 200 Hz during stance. Sagittal motion of the talocrural and subtalar joints were analyzed barefoot and within short and tall CAM boots. Results: Barefoot talocrural mean maximum plantar and dorsiflexion were 9.2 ± 5.4 degrees and −7.5 ± 7.4 degrees, respectively; short CAM boot mean maximum plantar and dorsiflexion were 3.2 ± 4.0 degrees and −4.8 ± 10.2 degrees, respectively; and tall CAM boot mean maximum plantar and dorsiflexion were −0.2 ± 3.5 degrees and −2.4 ± 5.1 degrees, respectively. Talocrural mean range of motion (ROM) decreased from barefoot (16.7 ± 5.1 degrees) to short CAM boot (8.0 ± 4.9 degrees) to tall CAM boot (2.2 ± 2.5 degrees). Subtalar mean maximum plantarflexion angles were 5.3 ± 5.6 degrees for barefoot walking, 4.1 ± 5.9 degrees for short CAM boot walking, and 3.0 ± 4.7 degrees for tall CAM boot walking. Mean minimum subtalar plantarflexion angles were 0.7 ± 3.2 degrees for barefoot walking, 0.7 ± 2.9 degrees for short CAM boot walking, and 0.1 ± 4.8 degrees for tall CAM boot walking. Subtalar mean ROM decreased from barefoot (4.6 ± 3.9 degrees) to short CAM boot (3.4 ± 3.8 degrees) to tall CAM boot (2.9 ± 2.6 degrees). Conclusion: Tall and short CAM boot intervention was shown to limit both talocrural and subtalar motion in the sagittal plane during ambulation. The greatest reductions were seen with the tall CAM boot, which limited talocrural motion by 86.8% and subtalar motion by 37.0% compared to barefoot. Short CAM boot intervention reduced talocrural motion by 52.1% and subtalar motion by 26.1% compared to barefoot. Clinical Relevance: Both short and tall CAM boots reduced talocrural and subtalar motion during gait. The short CAM boot was more convenient to use, whereas the tall CAM boot more effectively reduced motion. In treatments requiring greater immobilization of the talocrural and subtalar joints, the tall CAM boot should be considered

Landowner Participation in the Wetlands Reserve Program: Evidence From Nine Oklahoma Counties

The results of the survey were used to develop multivariate logistic regression models predicting awareness of the WRP and application to the program. Several variables proved to be important predictors of awareness and application. In the final model for awareness of the WRP, duck hunting and contact with an NRCS district conservationist (DC) were the most important predictor variables. Duck hunters and those in contact with DCs were more likely to be aware of the WRP. Contact with the DCs was itself predicted by larger landholdings (or percent of annual income derived from the land), participation in other conservation programs, and awareness of large wetland projects. In the final model for application to the WRP, participation in other conservation programs, awareness of large wetland projects, and a favorable attitude towards wetlands were all important positive predictors. Although not included in the final model, how the landowner learned about the WRP and the landowner's attitude towards government involvement in the management of natural resources were also potentially important predictors. Those who applied to the WRP rated wildlife benefits, personal recreation benefits, and assistance with restoration as the most important reasons for their decision to apply. Those rejecting involvement with the program often did so because of perceived ineligibility, concerns about land use restrictions, or a negative overall attitude towards wetlands and government. Economic considerations were not rated as highly, but their importance is difficult to determine without more data on applicants and their responses to economic factors such as land values and assessed easement values.Environmental Sciences Progra

Focused Anticoagulation Service in Family Medicine Residencies

A report on the creation of a new program to improve family medicine residents\u27 understanding, and quality of care, of anticoagulation patients. Patients requiring anticoagulation therapy pose unique issues requiring a systematic approach to their care, balancing the potential benefit from therapy with possible adverse events. Here, we describe a model that helps to standardize both the care received by patients on anticoagulation therapy as well as the training of family medicine residents caring for those patients. A team-based model of care (family medicine residents, clinical pharmacists, and nurses) is used to achieve the goals of improved care and education. Clinical pharmacists are used in concert with family medicine residents and attendings to assess patients\u27 medication profiles and help direct patient care and resident learning. Both the idea itself and the formal structure are presented in a model for possible adaptation to other program

Effectiveness of an Adapted Virtual Medication Reconciliation OSCE Compared with In Person OSCE

Introduction: The objective of this study was to measure virtually-based objective structured clinical exam (OSCE) pass rates of student pharmacists who received remote, synchronous instruction on medication reconciliation compared with OSCE pass rates from the previous class, who received face to face synchronous instruction and OSCEs. The secondary objective was to measure student perceptions of remote instruction and OSCE preparation. Materials and Methods: Second year student pharmacists attended four online preparatory labs to learn and practice the process of performing a medication reconciliation. A virtually-based OSCE was used to assess student competency of identifying the primary or life-threatening medication related problem (MRP). Failing to identify the MRP represented a “kill point” and an automatic failing grade. A brief 10-item survey designed to measure student perceptions was sent to all participants post OSCE. Results: Seventy-seven students completed the OSCE and the overall pass rates were similar between the 2020 and 2019 class years (97% vs 94%, respectively; p = 0.24). Survey responses showed students lacked confidence, preferred face-to-face learning rather than online and most described their remote environments as not conducive to learning. Conclusion: Online instruction and assessment was at least as effective as traditional face-to-face methods. however the virtual-based platform was not preferred by learners