Media Literacy and the Broadcast “Nation”: Making Sense of What We Have Signed on For

In this paper, the author provides a response to Dunn (2013) and Martin (2013). Focusing on the relationship between the media and intercollegiate sport, the author examined the impact of intercollegiate athletics on the finances, mission, and outcomes of the broader institutions in which they are housed. Recommendations for future action are offered

Testosterone Therapy and Risk of Recurrence After Treatment for Prostate Cancer

Evidence-Based Answer: Men with symptomatic androgen deprivation who have had clinically curative treatment for organ-confined prostate cancer may have symptomatic improvement with testosterone replacement therapy. (Strength of Recommendation [SOR]: C, based on two small case series.) There are no studies evaluating the risk of cancer recurrence in patients receiving testosterone replacement therapy. However, testosterone replacement therapy may be associated with increased prostate-specific antigen (PSA) levels. (SOR: C, based on one case report.) Some men discontinue therapy because their symptoms do not improve. (SOR: C, based on a small case series.

COVID-19, colleagues, confusion, and conversations

During the COVID-19 pandemic, doctors in a community hospital reflect on their decision-making regarding treatment options for COVID-19. Whether to use hydroxychloroquine is the treatment discussed in most detail

Fragmentation Kinematics in Comet 332P/Ikeya-Murakami

We present initial time-resolved observations of the split comet 332P/Ikeya-Murakami taken using the Hubble Space Telescope. Our images reveal a dust-bathed cluster of fragments receding from their parent nucleus at projected speeds in the range 0.06 to 3.5 m s$^{-1}$ from which we estimate ejection times from October to December 2015. The number of fragments with effective radii $\gtrsim$20 m follows a differential power law with index $\gamma$ = -3.6$\pm$0.6, while smaller fragments are less abundant than expected from an extrapolation of this power-law. We argue that, in addition to losses due to observational selection, torques from anisotropic outgassing are capable of destroying the small fragments by driving them quickly to rotational instability. Specifically, the spin-up times of fragments $\lesssim$20 m in radius are shorter than the time elapsed since ejection from the parent nucleus. The effective radius of the parent nucleus is $r_e \le$ 275 m (geometric albedo 0.04 assumed). This is about seven times smaller than previous estimates and results in a nucleus mass at least 300 times smaller than previously thought. The mass in solid pieces, $2\times10^9$ kg, is about 4% of the mass of the parent nucleus. As a result of its small size, the parent nucleus also has a short spin-up time. Brightness variations in time-resolved nucleus photometry are consistent with rotational instability playing a role in the release of fragments.Comment: 19 pages, 1 table, 4 figures, To be published on ApJ

Implications of pediatric extracorporeal cardiopulmonary resuscitation simulation for intensive care team confidence and coordination: A pilot study

Introduction Extracorporeal cardiopulmonary resuscitation (ECPR) is associated with improved outcomes in select populations, however, crisis resource management (CRM) in this setting is logistically challenging. This study evaluates the impact of ECPR simulation on self-perceived confidence and collaboration of intensive care unit team members. Methods This is a prospective observational study analyzing data obtained between July 2018–December 2019. This study focused on non-surgical members of critical care team consisting of pediatric intensivists, resident physicians, registered nurses, respiratory therapists. Participants were expected to perform cardiopulmonary resuscitation (CPR) during the ECPR event, participate in code-team responsibilities and provide ancillary support during cannulation. Pre- and post-simulation surveys employed the Likert scale (1 = not at all confident, 5 = highly confident) to assess self-perceived scores in specified clinical competencies. Results Twenty-nine providers participated in the simulation; 38% had prior ECPR experience. Compared to mean pre-study Likert scores (2.4, 2.4, 2.5), post-simulation scores increased (4.2, 4.4, 4.3) when self-evaluating: confidence in assessing patients needing ECPR, confidence in participating in ECPR workflow and confidence in performing high-quality CPR, respectively. Post-simulation values of \u3e3 were reported by 100% of participants in all domains (p \u3c .0001). All participants indicated the clinical scenario and procedural environment to be realistic and appropriately reflective of situational stress. Additionally, 100% of participants reported the simulation to improve perceived team communication and teamwork skills. Conclusion This study demonstrated preliminary feasibility of pediatric ECPR simulation in enhancing independent provider confidence and team communication. This self-perceived improvement may establish a foundation for cohesive CRM, in preparation for a real life ECPR encounter

Hubble Space Telescope Observations of Comet 9P/Tempel 1 during the Deep Impact Encounter

We report on the Hubble Space Telescope program to observe periodic comet 9P/Tempel 1 in conjunction with NASA's Deep Impact mission. Our objectives were to study the generation and evolution of the coma resulting from the impact and to obtain wide-band images of the visual outburst generated by the impact. Two observing campaigns utilizing a total of 17 HST orbits were carried out: the first occurred on 2005 June 13-14 and fortuitously recorded the appearance of a new, short-lived fan in the sunward direction on June 14. The principal campaign began two days before impact and was followed by contiguous orbits through impact plus several hours and then snapshots one, seven, and twelve days later. All of the observations were made using the Advanced Camera for Surveys (ACS). For imaging, the ACS High Resolution Channel (HRC) provides a spatial resolution of 36 km (16 km/pixel) at the comet at the time of impact. Baseline images of the comet, made prior to impact, photometrically resolved the comet's nucleus. The derived diameter, 6.1 km, is in excellent agreement with the 6.0 +/- 0.2 km diameter derived from the spacecraft imagers. Following the impact, the HRC images illustrate the temporal and spatial evolution of the ejecta cloud and allow for a determination of its expansion velocity distribution. One day after impact the ejecta cloud had passed out of the field-of-view of the HRC.Comment: 15 pages, 14 postscript figures. Accepted for publication in Icarus special issue on Deep Impac

Prediction of Fall Risk Among Community-Dwelling Older Adults Using a Wearable System

Falls are among the most common cause of decreased mobility and independence in older adults and rank as one of the most severe public health problems with frequent fatal consequences. In the present study, gait characteristics from 171 community-dwelling older adults were evaluated to determine their predictive ability for future falls using a wearable system. Participants wore a wearable sensor (inertial measurement unit, IMU) affixed to the sternum and performed a 10-m walking test. Measures of gait variability, complexity, and smoothness were extracted from each participant, and prospective fall incidence was evaluated over the following 6-months. Gait parameters were refined to better represent features for a random forest classifier for the fall-risk classification utilizing three experiments. The results show that the best-trained model for faller classification used both linear and nonlinear gait parameters and achieved an overall 81.6 ± 0.7% accuracy, 86.7 ± 0.5% sensitivity, 80.3 ± 0.2% specificity in the blind test. These findings augment the wearable sensor\u27s potential as an ambulatory fall risk identification tool in community-dwelling settings. Furthermore, they highlight the importance of gait features that rely less on event detection methods, and more on time series analysis techniques. Fall prevention is a critical component in older individuals’ healthcare, and simple models based on gait-related tasks and a wearable IMU sensor can determine the risk of future falls

Cardiac Tamponade: Innovative Sternotomy Simulation Model for Training Pediatric Cardiac Intensive Care Team

Introduction: Cardiac tamponade occurring after cardiac surgery is rare but life threatening and requires simultaneous resuscitation and emergent sternotomy by the intensive care team. A simulated scenario using innovative mannequin with sternotomy wound has the capability of reproducing cardiac arrest associated with postoperative tamponade. We evaluated the face validity of this innovative mannequin, the confidence level and crisis resource management skills of the team during sternotomy to manage postoperative cardiac tamponade. Methods: The simulation case scenario was developed using innovative sternotomy mannequin for children’s hospital cardiac intensive care unit (CICU) teams. The case involved a 3-year old male, intubated, mechanically ventilated after surgical repair of CHD, progressing to cardiac arrest due to cardiac tamponade. We conducted a structured, video debriefing following each scenario. We conducted a formative learner assessment before and after each scenario and analyzed the data using student t-test. Results: Of the 72 CICU providers, a statistically significant proportion of providers (p \u3c 0.0001) showed improved confidence in assessing and managing cardiac arrest occurring following postoperative cardiac tamponade. All the providers scored ≥ 3 for impact of the scenario on practice, teamwork, communication, assessment skills, improvement in CPR and opening the chest and their confidence in attending similar clinical situation in future. Most (96–100%) scored ≥ 3 for perception on realism of mannequin, the scenario, re-opening the sternotomy and level of stress. Conclusions: Innovative adaptation of a high-fidelity mannequin for cardiac tamponade simulation can achieve a realistic and reproducible training model with a positive impact on multi-disciplinary team training

Moving the Needle on Poverty

Contents: Preface - Pathways to Poverty Reduction through Community-Campus Partnerships Chapter One: Creating Strategic Partnerships to Influence Policy (Liz Weaver) Chapter Two: Models of Community-Campus Engagement in the Poverty Reduction Hub of CFICE (Karen Schwartz) Chapter Three: University and Community Collaboration: Achieving Social Change (Erin Bigney, Tracey Chiasson, Melanie Hientz, Robert MacKinnon and Cathy Wright) Chapter Four: On a Path of True Reconciliation: Investing in a Poverty-free Saskatoon (Colleen Christopherson-Côté, Lisa Erickson, Isobel M. Findlay and Vanessa Charles) Chapter Five: Using Campus Community Engagement to Build Capacity for Poverty Reduction (Amanda Lefrancois) Chapter Six: Shifting Societal Attitudes Regarding Poverty: Reflections on a Successful Community-University Partnership ( Mary MacKeigan, Jessica Wiese, Terry Mitchell, Colleen Loomis and Alexa Stovold) Chapter Seven: Models of Collaboration: Does Community Engagement with University Colleges Have an Impact on Poverty Reduction? (Polly Leonard and Karen Schwartz) Chapter Eight: A Peephole into the Student Experience: Student Research Assistants on their Experiences in the Poverty Reduction Hub (Aaron Kozak, Zhaocheng Zeng and Natasha Pei) Chapter Nine: Poverty Reduction Hub Evaluation (Aaron Kozak, Karen Schwartz, Amanda Lefrancois and Liz Weaver) Chapter Ten: Conclusion (Magdalene Goemans)</small

Finding Concealed Active Faults: Extending the Southern Whidbey Island Fault across the Puget Lowland, Washington

The southern Whidbey Island fault zone (SWIF), as previously mapped using borehole data, potential field anomalies, and marine seismic reflection surveys, consists of three subparallel, northwest trending strands extending ~100 km from near Vancouver Island to the northern Puget Lowland. East of Puget Sound, the SWIF makes landfall between the cities of Seattle and Everett but is concealed beneath a thick mantle of young glacial deposits and vegetation. A ~20-km-wide, northwest trending swath of subparallel, low-amplitude aeromagnetic anomalies crosses this region of the Puget Lowland and is on strike with the SWIF. The most prominent aeromagnetic anomaly, the Cottage Lake lineament, extends at least 18 km and lies approximately on strike with the SWIF on Whidbey Island. Subtle scarps and topographic lineaments on Pleistocene surfaces, visible on high-resolution lidar topography at a number of locations along the SWIF, lie on or near these magnetic anomalies. In the field, scarps exhibit northeast-side-up and vertical relief of 1 to 5 m. Excavations across several lidar scarps lying on or near magnetic anomalies show evidence for multiple folding and faulting events since deglaciation, most likely above buried reverse/oblique faults. Excavations in areas away from magnetic anomalies do not show evidence of tectonic deformation. In total, paleoseismological evidence suggests that the SWIF produced at least four earthquakes since deglaciation about 16,400 years ago, the most recent less than 2700 years ago