44 research outputs found
Laboratory Astrophysics White Paper (based on the 2010 NASA Laboratory Astrophysics Workshop in Gatlinberg, Tennessee, 25-28 October 2010)
The purpose of the 2010 NASA Laboratory Astrophysics Workshop (LAW) was, as given in the Charter from NASA, "to provide a forum within which the scientific community can review the current state of knowledge in the field of Laboratory Astrophysics, assess the critical data needs of NASA's current and future Space Astrophysics missions, and identify the challenges and opportunities facing the field as we begin a new decade". LAW 2010 was the fourth in a roughly quadrennial series of such workshops sponsored by the Astrophysics Division of the NASA Science Mission Directorate. In this White Paper, we report the findings of the workshop
Recommended from our members
Pregnancy during Residency
To identify possible barriers to women physicians who wish to combine parenting with medical careers, we studied 56 of 64 pregnancies from the past 10 years in 63 of 66 Harvard-affiliated residency programs. Pregnancies during residency were common (one in eight married women in 1983) and were usually planned (77 percent). Most institutions were unprepared for pregnancies among members of the house staff; four fifths of the programs had no maternity-leave policy. No one quit a residency program because of pregnancy, and pregnancy rarely affected achievement of board certification. Whether the pregnant women found pregnancy during residency a "pleasant" experience was determined largely by whether the program director was supportive, whether the issue of pregnancy was openly discussed within the program, and whether the woman was permitted to return to work on a part-time basis for the first weeks after maternity leave. We conclude that pregnancy within residency programs should be expected and planned for and that if proper arrangements are made, it need not be a major problem for either the training program or the pregnant resident. (N Engl J Med 1986; 314:418–23.
Foreign Nurse Importation to the United States and the Supply of Native Registered Nurses
Importing foreign nurses has been used as a strategy to ease nursing shortages in the United States. The effectiveness of this policy critically depends on the long-run response of native-born nurses. We examine how the immigration of foreign-born registered nurses (RNs) affects the occupational choice and long-run employment decisions of native RNs. Using a variety of empirical strategies that exploit the geographical distribution of immigrant nurses across U.S. cities, we find evidence of large displacement effects - over a 10-year period, for every foreign nurse that migrates to a city, between one and two fewer native nurses are employed in that city. We find similar results at the state level using data on individuals taking the nursing board exam - an increase in the flow of foreign nurses significantly reduces the number of natives sitting for licensure exams in the states that are more dependent on foreign-born nurses compared to those states that are less dependent on foreign nurses. Using data on self-reported workplace satisfaction among a sample of California nurses, we find evidence suggesting that some of the displacement effects could be driven by a decline in the perceived quality of the workplace environment
Identification of Post-cardiac Arrest Blood Pressure Thresholds Associated With Outcomes in Children: An ICU-Resuscitation Study
INTRODUCTION: Though early hypotension after pediatric in-hospital cardiac arrest (IHCA) is associated with inferior outcomes, ideal post-arrest blood pressure (BP) targets have not been established. We aimed to leverage prospectively collected BP data to explore the association of post-arrest BP thresholds with outcomes. We hypothesized that post-arrest systolic and diastolic BP thresholds would be higher than the currently recommended post-cardiopulmonary resuscitation BP targets and would be associated with higher rates of survival to hospital discharge.
METHODS: We performed a secondary analysis of prospectively collected BP data from the first 24 h following return of circulation from index IHCA events enrolled in the ICU-RESUScitation trial (NCT02837497). The lowest documented systolic BP (SBP) and diastolic BP (DBP) were percentile-adjusted for age, height and sex. Receiver operator characteristic curves and cubic spline analyses controlling for illness category and presence of pre-arrest hypotension were generated exploring the association of lowest post-arrest SBP and DBP with survival to hospital discharge and survival to hospital discharge with favorable neurologic outcome (Pediatric Cerebral Performance Category of 1-3 or no change from baseline). Optimal cutoffs for post-arrest BP thresholds were based on analysis of receiver operator characteristic curves and spline curves. Logistic regression models accounting for illness category and pre-arrest hypotension examined the associations of these thresholds with outcomes.
RESULTS: Among 693 index events with 0-6 h post-arrest BP data, identified thresholds were: SBP \u3e 10th percentile and DBP \u3e 50th percentile for age, sex and height. Fifty-one percent (n = 352) of subjects had lowest SBP above threshold and 50% (n = 346) had lowest DBP above threshold. SBP and DBP above thresholds were each associated with survival to hospital discharge (SBP: aRR 1.21 [95% CI 1.10, 1.33]; DBP: aRR 1.23 [1.12, 1.34]) and survival to hospital discharge with favorable neurologic outcome (SBP: aRR 1.22 [1.10, 1.35]; DBP: aRR 1.27 [1.15, 1.40]) (all p \u3c 0.001).
CONCLUSIONS: Following pediatric IHCA, subjects had higher rates of survival to hospital discharge and survival to hospital discharge with favorable neurologic outcome when BP targets above a threshold of SBP \u3e 10th percentile for age and DBP \u3e 50th percentile for age during the first 6 h post-arrest
Recommended from our members
Challenges and Strategies for Implementing Battlefield Acupuncture in the Veterans Administration: A Qualitative Study of Provider Perspectives
Objective: Battlefield Acupuncture (BFA) is an auricular needling protocol for pain. More than 1300 Veterans Health Administration (VHA) clinicians have been trained in BFA delivery. However, little is known about how well BFA has been implemented at the VHA. The aim of this research was to identify the challenges providers experience in implementing BFA and to look for any successful strategies used to overcome these challenges. Materials and Methods: Semistructured telephone interviews were conducted from June 2017 to January 2018, using an interview guide informed by the integrated Promoting Action on Research Implementation in Health Services framework to address several implementation domains: knowledge and attitudes about BFA; professional roles and training in BFA; organization of BFA delivery and resources to provide BFA; and implementation challenges and strategies to address challenges. The interviews were analyzed, using a grounded theory-informed approach. This research was conducted at 20 VHA facilities and involved 23 VHA BFA providers nationwide. Results: Nine main implementation themes were identified: (1) providers organizing BFA delivery in various ways; (2) insufficient time to provide BFA to meet patient demand; (3) beliefs and knowledge about BFA; (4) lack of BFA indication guidelines or effectiveness data; (5) self-efficacy; (6) time delay between training and practice; (7) limited access to resources; (8) key role of leadership and administrative buy-in, and (9) written consent an unwarranted documentation burden. Providers offered some possible strategies to address these issues. Conclusions: System- and provider-level challenges can impede BFA implementation. However, several providers discovered strategies to address some challenges that can be used within and outside the VHA, which, in turn, might improve access to this potentially promising pain-management intervention
SARS-CoV-2 detection in setting of viral swabs scarcity: Are MRSA swabs and viral swabs equivalent?
BackgroundThe global pandemic of Severe Acute Respiratory Syndrome-Related Coronavirus 2 (SARS-CoV2) has resulted in unprecedented challenges for healthcare systems. One barrier to widespread testing has been a paucity of traditional respiratory viral swab collection kits relative to the demand. Whether other sample collection kits, such as widely available MRSA nasal swabs can be used to detect SARS-CoV-2 is unknown.MethodsWe compared simultaneous nasal MRSA swabs (COPAN ESwabs ® 480C flocked nasal swab in 1mL of liquid Amies medium) and virals wabs (BD H192(07) flexible mini-tip flocked nasopharyngeal swabs in 3mL Universal Transport Medium) for SARS-CoV-2 PCR testing using Simplexa COVID-19 Direct assay on patients over a 4-day period. When the results were discordant, the viral swab sample was run again on the Cepheid Xpert Xpress ® SARS-CoV-2 assay.ResultsOf the 81 included samples, there were 19 positives and 62 negatives in viral media and 18 positives and 63 negative in the MRSA swabs. Amongst all included samples, there was concordance between the COPAN ESwabs ® 480C and the viral swabs in 78 (96.3%).ConclusionWe found a high rate of concordance in test results between COPAN ESwabs ® 480C in Amies solution and BD H192(07) nasopharyngeal swabs in in 3 mL of Universal Viral Transport medium viral media. Clinicians and laboratories should feel better informed and assured using COPAN ESwabs ® 480C to help in the diagnosis of COVID-19