Athletic Training Students Demonstrate Supplemental Oxygen Administration Skill Decay, but Retain Knowledge Over Six Months

Purpose: Research suggests skill decay occurs with emergency skills, such as supplemental oxygen administration (OA), since the frequency of medical emergencies in clinical settings is low. Identifying the presence and timeline for skill decay allows educators to employ strategies to prevent this occurrence. Therefore, this study evaluated retention of knowledge and clinical skills associated with supplemental oxygen administration, specifically nasal cannula (NC) and non-rebreather mask (NrM) usage in professional athletic training students. Methods: Cross-sectional study. Twenty-nine athletic training students (males=11, females=18; age=21.03+1.38) enrolled in a Commission on Accreditation of Athletic Training Education (CAATE)-accredited professional athletic training programs. Participants’ supplemental oxygen administration knowledge and skills was assessed five times (baseline-T4). The baseline assessment was followed by an educational review session. Participants’ knowledge and skills were re-assessed (T1) and then randomly assigned to two groups. The experimental group’s supplemental oxygen administration knowledge and skills were re-evaluated at 1-month (T2), 3-months (T3), and 6-months (T4). The control at 6-months (T4). Results: Analysis revealed no significant differences between the groups on knowledge (F2,54=.15, P=.86) and overall clinical skills (F2,54=1.52, P=.23). A significant main effect for time on knowledge (F2,54=65.30, P1.89,50.98=112.55, P1.55,41.88=108.03, P Conclusions: Both groups retained supplemental oxygen administration knowledge over 6-months. Conversely, nasal cannula and non-rebreather mask skills decayed from review session to 6-month follow-up. Regular rehearsal and practice of acute care clinical skills should be integrated into educational programs to avoid decay of skills. Since these skills are not frequently utilized in the clinical education environment, integrating opportunities to practice these skills to maintain the competence level of students and prepare them for clinical practice is warranted

Ground state cooling of atoms in optical lattices

We propose two schemes for cooling bosonic and fermionic atoms that are trapped in a deep optical lattice. The first scheme is a quantum algorithm based on particle number filtering and state dependent lattice shifts. The second protocol alternates filtering with a redistribution of particles by means of quantum tunnelling. We provide a complete theoretical analysis of both schemes and characterize the cooling efficiency in terms of the entropy. Our schemes do not require addressing of single lattice sites and use a novel method, which is based on coherent laser control, to perform very fast filtering.Comment: 12 pages, 7 figure

Mexican-Origin Parents’ Stress and Satisfaction: The Role Of Emotional Support

Guided by a process model of parenting and the integrative model, this study examined sources of emotional support (i.e., partner, maternal, paternal) as related to stress and satisfaction resulting from the parenting role in a sample of Mexican-origin young adult parents who participated in the National Longitudinal Study of Adolescent to Adult Health (Add Health) during Wave IV. Participants were male and female parents (26–35 years of age; 59% female; N = 737) who had children and a partner. Results from structural equation modeling revealed support from mothers as salient; high levels of maternal support were associated with high levels of parenting satisfaction. Tests of indirect effects suggested that parenting satisfaction played an intervening role in the link between maternal support and parenting stress. The pattern of results held across levels of linguistic acculturation but varied by gender. Understanding the mechanisms that predict parenting stress and satisfaction within the Mexican-origin population may help in the identification of culturally sensitive intervention strategies. Keywords: Mexican-origin families, Parenting stress, Parenting satisfaction, Social suppor

HD DVD substrates for surface enhanced Raman spectroscopy analysis : fabrication, theoretical predictions and practical performance

Commercial HD DVDs provide a characteristic structure of encoding pits which were utilized to fabricate cost efficiently large area SERS substrates for chemical analysis. The study targets the simulation of the plasmonic structure of the substrates and presents an easily accessible fabrication process to obtain highly sensitive SERS active substrates. The theoretical simulation predicted the formation of supermodes under optimized illumination conditions, which were verified experimentally. First tests of the developed SERS substrates demonstrated their excellent potential for detecting vitamin A and pro- vitamin A at low concentration levels

Postpartum osteoporosis associated with proximal tibial stress fracture

A 33-year-old woman presented with acute nonspecific knee pain, 6months postpartum. MR imaging, computed tomography and radiography were performed and a proximal tibia plateau insufficiency fracture was detected. Bone densitometry demonstrated mild postpartum osteoporosis. To our knowledge these findings have not been described in this location and in this clinical setting. The etiology of the atraumatic fracture of the tibia is presumed to be due to a low bone mineral density. The bone loss was probably due to pregnancy, lactation and postpartum hormonal changes. There were no other inciting causes and the patient was normocalcemic. We discuss the presence of a postpartum stress fracture in a hitherto undescribed site in a patient who had lactated following an uncomplicated pregnancy and had no other identifiable cause for a stress fractur

The effect of acquisition moves on income, pre-tax profits and future strategy of logistics firms

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Distribution of Maximal Luminosity of Galaxies in the Sloan Digital Sky Survey

Extreme value statistics (EVS) is applied to the distribution of galaxy luminosities in the Sloan Digital Sky Survey (SDSS). We analyze the DR8 Main Galaxy Sample (MGS), as well as the Luminous Red Galaxies (LRG). Maximal luminosities are sampled from batches consisting of elongated pencil beams in the radial direction of sight. For the MGS, results suggest a small and positive tail index $\xi$, effectively ruling out the possibility of having a finite maximum cutoff luminosity, and implying that the luminosity distribution function may decay as a power law at the high luminosity end. Assuming, however, $\xi=0$, a non-parametric comparison of the maximal luminosities with the Fisher-Tippett-Gumbel distribution (limit distribution for variables distributed by the Schechter fit) indicates a good agreement provided uncertainties arising both from the finite batch size and from the batch size distribution are accounted for. For a volume limited sample of LRGs, results show that they can be described as being the extremes of a luminosity distribution with an exponentially decaying tail, provided the uncertainties related to batch-size distribution are taken care of

Using Fan Passion to Investigate Constraints to Student Attendance at College Football Games

Given the decline in average student attendance at college football games nationwide, it is important for marketers to understand the constraints inhibiting student attendance. The current study addresses this issue by testing for differences in constraints affecting student nonattendance decisions based on their passion for the home team. Data were collected from students not attending games on six college campuses during actual football games. A total of 33 potential constraints to attendance were assessed. Results indicated statistically significant differences among intrapersonal, event-specific, and marketing-related constraints. Regardless of passion level, prior commitments to school and work were among the most highly-rated constraints to attendance. For highly-passionate fans, beverage costs, poor team performance, and watching the game on television were also highly-rated constraints. Low-passion fans, however, were constrained by time commitment necessary to attend, as well as lack of interest in football

Tibial or hip BMD predict clinical fracture risk equally well: results from a prospective study in 700 elderly Swiss women

Summary: In a randomly selected cohort of Swiss community-dwelling elderly women prospectively followed up for 2.8 ± 0.6years, clinical fractures were assessed twice yearly. Bone mineral density (BMD) measured at tibial diaphysis (T-DIA) and tibial epiphysis (T-EPI) using dual-energy X-ray absorptiometry (DXA) was shown to be a valid alternative to lumbar spine or hip BMD in predicting fractures. Introduction: A study was carried out to determine whether BMD measurement at the distal tibia sites of T-EPI and T-DIA is predictive of clinical fracture risk. Methods: In a predefined representative cohort of Swiss community-dwelling elderly women aged 70-80years included in the prospective, multi-centre Swiss Evaluation of the Methods of Measurement of Osteoporotic Fracture risk (SEMOF) study, fracture risk profile was assessed and BMD measured at the lumbar spine (LS), hip (HIP) and tibia (T-DIA and T-EPI) using DXA. Thereafter, clinical fractures were reported in a bi-yearly questionnaire. Results: During 1,786 women-years of follow-up, 68 clinical fragility fractures occurred in 61 women. Older age and previous fracture were identified as risk factors for the present fractures. A decrease of 1 standard deviation in BMD values yielded a 1.5-fold (HIP) to 1.8-fold (T-EPI) significant increase in clinical fragility fracture hazard ratio (adjusted for age and previous fracture). All measured sites had comparable performance for fracture prediction (area under the curve range from 0.63 [LS] to 0.68 [T-EPI]). Conclusion: Fracture risk prediction with BMD measurements at T-DIA and T-EPI is a valid alternative to BMD measurements at LS or HIP for patients in whom these sites cannot be accessed for clinical, technical or practical reason