Typically understood only within the cultural history of the post–World War II folk music revival, documentarian Alan Lomax's “Cantometrics” research and artist Harry Smith's Folkways Anthology of American Music also deserve to be positioned within the broader Cold War–era rise of the digital computer and tactics of computation in American society. Linking what Ross Cole describes as the “folkloric imagination” to what we might call the Cold War “computational imagination,” Lomax and Smith each examined folk music not through conventional ethnographic or musicological modes, but rather through computational lenses of data analysis, systems theory, informatics, and cybernetics. Both sought to expand cultural democracy by doing so, carrying Popular Front ideals into the postwar milieu while also presaging dilemmas found in today's fraught context of data analytics, artificial intelligence, and the application of digital technologies to almost all aspects of human culture.

Background: Hand hygiene is one of the most effective measures to prevent healthcare-associated infections and transmission of multidrug-resistant organisms in healthcare settings. The WHO proposes a multimodal intervention strategy to improve hand hygiene in healthcare settings. In 2008, a voluntary national campaign for hand hygiene was implemented in the German healthcare system. The objective of this study was to evaluate participation, practices, and performance of hand hygiene in German acute-care hospitals. Methods: In 2008 a national hand hygiene campaign began in Germany. Based on voluntary participation, the campaign’s goal was to implement the WHO 5 Moments model, to establish a national surveillance system for compliance to hand hygiene, to improve availability of alcohol-based hand-rub (ABHR) dispensers at points of care, and to implement interdisciplinary executive boards at each hospital to ensure sustainable implementation. Annual data on ABHR consumption and patient days (PD) were collected within the national surveillance system (HAND-KISS) on the individual ward level and were validated. Direct observation of compliance was performed according the recommendations of the WHO. Results: Overall, 1,047 of 1,942 acute-care hospitals in Germany participated in the national hand hygiene campaign in 2018, covering 81,571,917 patient days. Moreover, 9,360 regular wards (RWs), 338 intermediate care units (IMCs) and 1,342 intensive care units (ICUs) provided data on ABHR consumption. Between 2007 and 2018 in the ICU, ABHR consumption increased continuously from 70 mL/PD (IQR, 52–98) to 129 mL/PD (IQR, 102–162). In intermediate care units, ABHR consumption increased from 40 mL/PD (IQR, 15–54) to 67 mL/PD (IQR, 46–95), and on regular wards, ABHR consumption increased from 14 mL/PD (IQR, 10–21) to 29 mL/PD (IQR, 22–39). These increases were especially pronounced in wards that continuously provided annual data for ABHR consumption over the past 12 years. In 2014, electronic documentation for direct observation of compliance to hand hygiene was established. From 2014 until 2018, 1,598,209 opportunities were observed on 1,907 wards of 422 hospitals. The median directly observed compliance in 2018 was 76% (IQR, 66%–84%). Median compliance to the 5 Moments was 71% (IQR, 57%–82%) before touching a patient, 68% (IQR, 51%–85%) before clean or aseptic procedures, 83% (IQR, 72%–92%) after body fluid exposure or risk, 84% (IQR, 75%–90%) after touching a patient, and 74% (IQR, 61%–84%) after touching patient surroundings. Conclusions: The WHO multimodal intervention strategy has been successfully established in German acute-care hospitals. A surveillance system for ABHR consumption and direct observation of compliance to hand hygiene are widely used by hospitals in Germany. Hand hygiene practices have significantly improved in the German healthcare system.

Funding: None

Disclosures: None

Fast Radio Bursts (FRBs) are millisecond-long bursts of radio emission of extragalactic origin. The nature or FRBs is still unknown. Whether all FRBs are representatives of the same source population, or whether multiple underlying populations exist, is also unknown. One class that stands out is that of the “repeaters”, i.e. FRBs from which multiple bursts have been detected. In these cases, appropriate models should be non-cataclysmic but yet being able to create powerful coherent radio emission. Magnetars are among those source types that are considered as possible explanation for (repeating) FRBs. This review will summarise the basic properties of FRBs and those of magnetars to provide a critical assessment of the possible physical connection between these classes of sources. We conclude that while magnetars may indeed be related to the FRB phenomenon, it is unlikely that they explain all FRBs, i.e. at least two classes of FRBs exist.

We describe an ultra-wide-bandwidth, low-frequency receiver recently installed on the Parkes radio telescope. The receiver system provides continuous frequency coverage from 704 to 4032 MHz. For much of the band ( ${\sim}60\%$ ), the system temperature is approximately 22 K and the receiver system remains in a linear regime even in the presence of strong mobile phone transmissions. We discuss the scientific and technical aspects of the new receiver, including its astronomical objectives, as well as the feed, receiver, digitiser, and signal processor design. We describe the pipeline routines that form the archive-ready data products and how those data files can be accessed from the archives. The system performance is quantified, including the system noise and linearity, beam shape, antenna efficiency, polarisation calibration, and timing stability.

OBJECTIVES/SPECIFIC AIMS: (1) Identify current barriers to coordinated care between behavior consultation and PCIT services. (2) Identify current facilitators to coordinated care between behavior consultation and PCIT services. (3) Utilize this knowledge to create and pilot a coordinated care model that will enhance PCIT and behavior consultation service outcomes. METHODS/STUDY POPULATION: Objectives 1 and 2: Two focus groups consisting of 8–10 behavior consultants will be conducted to gather initial information on barriers and facilitators to coordinated care. Participants will be recruited from the state-funded behavior consultation team, to represent consultation occurring in rural and urban settings. All focus groups will be recorded and transcribed to capture questions and comments. Focus groups will be provided with an initial 10-minute overview of PCIT, including theory, prescribed strategies, and mode of intervention. A grand tour question will then be asked to elicit consultant perceptions of PCIT (e.g., “What are your thoughts on the compatibility between PCIT and behavior consultation services”), followed by probe questions deigned to elicit more detailed information about any perceived differences based on philosophical approach; differences in what is recommended in childcare settings Versus at home, etc.; and perceived barriers to coordinated care between school and outpatient services (e.g., “What factors make coordinating care with outpatient providers challenging?). Participants will be asked about their willingness to participate in a second focus group to review materials created to enhance coordinated care, based on their feedback. Objective 3. Based on feedback from the focus groups and quantitative data regarding factors associated with PCIT outcomes, we will develop an enhanced childcare component(s) for eventual implementation. To confirm our approach, we will invite the members of both focus groups back for a second session, in which we provide them with the created materials and elicit their feedback. We will start with a grand tour question (e.g., “How do you think parents and teachers would react to these materials?”) and then follow-up with probe questions related to feasibility (e.g., “How do you anticipate using these tools?”), appropriateness (e.g., “How adequately do you feel these materials address concerns with coordinated care?”), and acceptability (e.g., “How likely are you to begin using these tools within your consultation?”). Both focus groups will be recorded and transcribed to capture questions and comments. RESULTS/ANTICIPATED RESULTS: (1) Barriers and facilitators to coordinated care will include individual (e.g., acceptability of PCIT framework) and system-level factors (e.g., ease of communication between providers). (2) There will be significant overlap in coordination between the first phase of PCIT (which focuses on positive parenting strategies) and what is prescribed by behavior consultants. (3) There will be less compatibility between the second phase of PCIT (which focuses on disciplinary strategies) and what is prescribed by behavior consultants. (4) A coordinated are model will be rated as more feasible, appropriate, and acceptable to behavior consultants than PCIT services as currently prescribed. DISCUSSION/SIGNIFICANCE OF IMPACT: Childhood disruptive behaviors are among the most frequent reasons for referral to outpatient child/adolescent mental health clinics (Sukhodolsky et al., 2016). Disruptive and aggressive behaviors are problematic, not only for victims of children who are aggressive but also for aggressive children as they age. Although effective treatments exist, families are often provided with conflicting strategies for behavior management by outpatient clinicians and behavior consultants in the daycare setting, thus providing children inconsistent feedback which will delay their attainment of new skills. These data will provide the initial foundation for the development of a coordinated care model that promotes treatment efficacy by improving the compatibility between clinic-based PCIT and daycare-based behavior consultation services.

Objectives: Concussions cause diverse symptoms that are often measured through a single symptom severity score. Researchers have postulated distinct dimensions of concussion symptoms, raising the possibility that total scores may not accurately represent their multidimensional nature. This study examined to what degree concussion symptoms, assessed by the Sport Concussion Assessment Tool 3 (SCAT3), reflect a unidimensional versus multidimensional construct to inform how the SCAT3 should be scored and advance efforts to identify distinct phenotypes of concussion. Methods: Data were aggregated across two prospective studies of sport-related concussion, yielding 219 high school and college athletes in the acute (<48 hr) post-injury period. Item-level ratings on the SCAT3 checklist were analyzed through exploratory and confirmatory factor analyses. We specified higher-order and bifactor models and compared their fit, interpretability, and external correlates. Results: The best-fitting model was a five-factor bifactor model that included a general factor on which all items loaded and four specific factors reflecting emotional symptoms, torpor, sensory sensitivities, and headache symptoms. The bifactor model demonstrated better discriminant validity than the counterpart higher-order model, in which the factors were highly correlated (r=.55–.91). Conclusions: The SCAT3 contains items that appear unidimensional, suggesting that it is appropriate to quantify concussion symptoms with total scores. However, evidence of multidimensionality was revealed using bifactor modeling. Additional work is needed to clarify the nature of factors identified by this model, explicate their clinical and research utility, and determine to what degree the model applies to other stages of injury recovery and patient subgroups. (JINS, 2018, 24, 793–804)

Very Long Baseline Interferometry (VLBI) at sub-millimeter waves has the potential to image the shadow of the black hole in the Galactic Center, Sagittarius A* (Sgr A*), and thereby test basic predictions of the theory of general relativity. We investigate the imaging prospects of a new Space VLBI mission concept. The setup consists of two satellites in polar or equatorial circular Medium-Earth Orbits with slightly different radii, resulting in a dense spiral-shaped uv-coverage with long baselines, allowing for extremely high-resolution and high-fidelity imaging of radio sources. We simulate observations of a general relativistic magnetohydrodynamics model of Sgr A* for this configuration with noise calculated from model system parameters. After gridding the uv-plane and averaging visibilities accumulated over multiple months of integration, images of Sgr A* with a resolution of up to 4 μ as could be reconstructed, allowing for stronger tests of general relativity and accretion models than with ground-based VLBI.

The overview of a Phased Array Feed (PAF) system and the early results with it on the 100 m diameter telescope at Effelsberg are presented in the paper.

The challenges of detecting and localising Fast Radio Bursts in real time can be met with the use of Phased Array Feeds. One such system, capable of creating up to 36 simultaneous beams, is currently being commissioned at the Effelsberg radio telescope in Germany following testing at the 64 m Parkes radio telescope. The PAFINDER (Phased Array Feed FRB Finder) pipeline will be used with this receiver to enable real–time single–pulse detection and localisation.

Fifty years of pulsars also mean fifty years of using them as tools to probe other phenomena and physics. One prominent example is the usage of pulsars to test theories of gravity. Probing the quasi-stationary strong-field regime, pulsars allow high precision tests that will maintain their importance even in the era of gravitation wave observations with ground-based detectors. This contribution summarise the methods and status of the field and provides a brief outlook into the future.