A Convergent Parallel Mixed Methods Study Measuring the Impact of Math-Economics Cross Curricular Intervention

Research studies in the past have linked math ability to success in economics courses. However, most of these studies have utilized a quantitative study design with limited studies testing the influence of math interventions on student’s academic ability in economics courses. This study will use a convergent mixed-methods research design to quantitatively measure the impact of a Math intervention on High School 11th and 12th grade Economics students and qualitatively observe student engagement and motivation during the intervention. A causal-comparative research design will be utilized for the quantitative strand to compare math ability in economics courses between students who participated in the intervention (experimental group) and those who did not participate in the intervention (control group). Students will be selected for the intervention based on their algebra and/or geometry end of course test scores as well as Northwest Evaluation Association Measures of Academic Progress Math 6+ Growth scores. Participants must have earned a level of beginning or developing learner on one or both tests. This study will utilize cross-curriculum collaboration between math and economics departments to develop and refine the intervention. Two years of retrospective data will be analyzed because the intervention started in 2018-19 academic year in the targeted school. Additionally, the researcher will collect data on student’s knowledge in the beginning, middle, and end of semester in the 2020-21 academic year. A dependent t-test will be utilized to measure change in student knowledge during the intervention which would assess the extent to which the intervention is successful in improving the Economics benchmark test scores. A phenomenological research design will be used for the qualitative strand to explore student engagement and motivation during math based economic interventions. Triangulation of quantitative and qualitative strands will occur through embedding and linking integration techniques

Francisella tularensis Transmission by Solid Organ Transplantation, 20171.

In July 2017, fever and sepsis developed in 3 recipients of solid organs (1 heart and 2 kidneys) from a common donor in the United States; 1 of the kidney recipients died. Tularemia was suspected only after blood cultures from the surviving kidney recipient grew Francisella species. The organ donor, a middle-aged man from the southwestern United States, had been hospitalized for acute alcohol withdrawal syndrome, pneumonia, and multiorgan failure. F. tularensis subsp. tularensis (clade A2) was cultured from archived spleen tissue from the donor and blood from both kidney recipients. Whole-genome multilocus sequence typing indicated that the isolated strains were indistinguishable. The heart recipient remained seronegative with negative blood cultures but had been receiving antimicrobial drugs for a medical device infection before transplant. Two lagomorph carcasses collected near the donor's residence were positive by PCR for F. tularensis subsp. tularensis (clade A2). This investigation documents F. tularensis transmission by solid organ transplantation

Tolerance, bioavailability, and potential cognitive health implications of a distinct aqueous spearmint extract

Background: Cognitive function can decline during the aging process and significantly reduce quality of life. Although a number of interventions have been investigated for cognitive dysfunction, including antioxidants, this prominent health concern emphasizes a need to explore methods to support cognitive health later in the life span. An aqueous extract from a proprietary spearmint line has been developed which contains a number of antioxidant compounds, including rosmarinic acid, at levels that are higher than found in commercially-bred spearmint. Therefore, this pilot trial assessed the tolerance, bioavailability, and potential cognitive health implications of a proprietary spearmint extract in men and women with self-reported memory impairment. Methods: Subjects consumed 900 mg/day spearmint extract for 30 days. The sample population (N = 11) was 73% female and 27% male with a mean age of 58.7 ± 1.6 y. Tolerability parameters were assessed at baseline and end of treatment visits. Computerized cognitive function tests were completed and blood was drawn at pre- and post-dose (0.5 to 4 h) timepoints during baseline and end of treatment visits. Subjective cognition was also assessed at end of treatment. Results: No serious adverse events or clinically relevant findings were observed in any tolerability parameters. Plasma vanillic, caffeic, and ferulic acid sulfates, rosmarinic acid, and methyl rosmarinic acid glucuronide were detected in plasma following acute administration of the spearmint extract. Computerized cognitive function scores improved in reasoning (P = 0.023) and attention/concentration (P = 0.002) after 30 days of supplementation. After acute administration, subjects had improved attention/concentration in two tests at 2 (P = 0.042 and P = 0.025) and 4 h (P = 0.001 and P = 0.002). Conclusions: The results from this pilot trial suggest that the spearmint extract, which contains higher rosmarinic acid content relative to extracts from typical commercial lines, was welltolerated at 900 mg/day. In addition, the extract was bioavailable and further investigation is warranted regarding its potential for supporting cognitive healt

Mariana serpentinite mud volcanism exhumes subducted seamount materials: implications for the origin of life

The subduction of seamounts and ridge features at convergent plate boundaries plays an important role in the deformation of the overriding plate and influences geochemical cycling and associated biological processes. Active serpentinization of forearc mantle and serpentinite mud volcanism on the Mariana forearc (between the trench and active volcanic arc) provides windows on subduction processes. Here, we present (1) the first observation of an extensive exposure of an undeformed Cretaceous seamount currently being subducted at the Mariana Trench inner slope; (2) vertical deformation of the forearc region related to subduction of Pacific Plate seamounts and thickened crust; (3) recovered Ocean Drilling Program and International Ocean Discovery Program cores of serpentinite mudflows that confirm exhumation of various Pacific Plate lithologies, including subducted reef limestone; (4) petrologic, geochemical and paleontological data from the cores that show that Pacific Plate seamount exhumation covers greater spatial and temporal extents; (5) the inference that microbial communities associated with serpentinite mud volcanism may also be exhumed from the subducted plate seafloor and/or seamounts; and (6) the implications for effects of these processes with regard to evolution of life.Copyright 2020 The Authors. Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/ by/4.0/, which permits unrestricted use, provided the original author and source are credited

The James Webb Space Telescope Mission

Twenty-six years ago a small committee report, building on earlier studies, expounded a compelling and poetic vision for the future of astronomy, calling for an infrared-optimized space telescope with an aperture of at least $4m$. With the support of their governments in the US, Europe, and Canada, 20,000 people realized that vision as the $6.5m$ James Webb Space Telescope. A generation of astronomers will celebrate their accomplishments for the life of the mission, potentially as long as 20 years, and beyond. This report and the scientific discoveries that follow are extended thank-you notes to the 20,000 team members. The telescope is working perfectly, with much better image quality than expected. In this and accompanying papers, we give a brief history, describe the observatory, outline its objectives and current observing program, and discuss the inventions and people who made it possible. We cite detailed reports on the design and the measured performance on orbit.Comment: Accepted by PASP for the special issue on The James Webb Space Telescope Overview, 29 pages, 4 figure

Moderators of the effect of therapeutic exercise for knee and hip osteoarthritis: a systematic review and individual participant data meta-analysis

Background Many international clinical guidelines recommend therapeutic exercise as a core treatment for knee and hip osteoarthritis. We aimed to identify individual patient-level moderators of the effect of therapeutic exercise for reducing pain and improving physical function in people with knee osteoarthritis, hip osteoarthritis, or both. Methods We did a systematic review and individual participant data (IPD) meta-analysis of randomised controlled trials comparing therapeutic exercise with non-exercise controls in people with knee osteoathritis, hip osteoarthritis, or both. We searched ten databases from March 1, 2012, to Feb 25, 2019, for randomised controlled trials comparing the effects of exercise with non-exercise or other exercise controls on pain and physical function outcomes among people with knee osteoarthritis, hip osteoarthritis, or both. IPD were requested from leads of all eligible randomised controlled trials. 12 potential moderators of interest were explored to ascertain whether they were associated with short-term (12 weeks), medium-term (6 months), and long-term (12 months) effects of exercise on self-reported pain and physical function, in comparison with non-exercise controls. Overall intervention effects were also summarised. This study is prospectively registered on PROSPERO (CRD42017054049). Findings Of 91 eligible randomised controlled trials that compared exercise with non-exercise controls, IPD from 31 randomised controlled trials (n=4241 participants) were included in the meta-analysis. Randomised controlled trials included participants with knee osteoarthritis (18 [58%] of 31 trials), hip osteoarthritis (six [19%]), or both (seven [23%]) and tested heterogeneous exercise interventions versus heterogeneous non-exercise controls, with variable risk of bias. Summary meta-analysis results showed that, on average, compared with non-exercise controls, therapeutic exercise reduced pain on a standardised 0–100 scale (with 100 corresponding to worst pain), with a difference of –6·36 points (95% CI –8·45 to –4·27, borrowing of strength [BoS] 10·3%, between-study variance [τ2] 21·6) in the short term, –3·77 points (–5·97 to –1·57, BoS 30·0%, τ2 14·4) in the medium term, and –3·43 points (–5·18 to –1·69, BoS 31·7%, τ2 4·5) in the long term. Therapeutic exercise also improved physical function on a standardised 0–100 scale (with 100 corresponding to worst physical function), with a difference of –4·46 points in the short term (95% CI –5·95 to –2·98, BoS 10·5%, τ2 10·1), –2·71 points in the medium term (–4·63 to –0·78, BoS 33·6%, τ2 11·9), and –3·39 points in the long term (–4·97 to –1·81, BoS 34·1%, τ2 6·4). Baseline pain and physical function moderated the effect of exercise on pain and physical function outcomes. Those with higher self-reported pain and physical function scores at baseline (ie, poorer physical function) generally benefited more than those with lower self-reported pain and physical function scores at baseline, with the evidence most certain in the short term (12 weeks). Interpretation There was evidence of a small, positive overall effect of therapeutic exercise on pain and physical function compared with non-exercise controls. However, this effect is of questionable clinical importance, particularly in the medium and long term. As individuals with higher pain severity and poorer physical function at baseline benefited more than those with lower pain severity and better physical function at baseline, targeting individuals with higher levels of osteoarthritis-related pain and disability for therapeutic exercise might be of merit

When the Water Rises: Recent Paintings

This exhibition catalogue features recent works by artist Julie Heffernan included in LSU Museum of Art?s exhibition, When the Water Rises . Essays by Curator Courtney Taylor, art writer and critic Eleanor Heartney, and LSU School of Art professor Kelli Scott Kelley as well as a statement by Julie Heffernan accompany the full-color plates in this richly illustrated catalogue.Julie Heffernan?s recent paintings imagine alternative habitats as creative responses to climate change. With waters rising all over the globe, Heffernan imagines worlds in trees or life on rafts in which undulating mattresses, tree branches, and road signs act as guides for the wayward journey. Construction zones interrupt the landscape, signaling places to stop and enter interior worlds, to reflect on the human condition?its feckless activity, violence, and failure. Heffernan reveals worlds within worlds, where her characters repurpose luxury items and safeguard bounties we cannot live without. Figures tending, nurturing, and creating suggest redemption?that we can adapt to a changed environment. With these paintings, Heffernan spells out the dilemma of climate change, but offers a vision of a creative sublime to carry us forward.https://repository.lsu.edu/facultybooks/1106/thumbnail.jp

Seizures and Antiseizure Medications are Important to Parents of Newborns With Seizures.

BackgroundNeonatal seizures and antiseizure medications both have potentially serious consequences on the developing brain. As such, optimal treatment of neonatal seizures remains unclear. Moreover, little is known about parental experiences, concerns, or unanswered questions. We conducted an online survey to assess parental perspectives regarding neonatal seizures and their management, along with their suggestions for specific high priority research topics.MethodsParents whose children had neonatal seizures were recruited through social media support groups to complete an online survey. Respondents progressed through a tiered series of questions about their experiences with neonatal seizures and antiseizure medications.ResultsThere were 126 eligible respondents. On a Likert scale, parents reported that neonatal seizures had a major effect on their families (median 10 of 10; interquartile range 3; n = 85). They also reported that antiseizure medications had a significant impact on their families (median 7 of 10; interquartile range 5.5; n = 75). The emotional impact of the uncertainty regarding seizures and medications was highlighted. Effects on neurodevelopment, continued seizures, and adverse effects of medications were some of the most commonly reported parental concerns and their highest priority research topics.ConclusionsBoth neonatal seizures and the medications used to treat them contribute to parental worries and have major impact on families. Patient-centered outcomes research should focus on the risk-benefit ratio of neonatal seizures and antiseizure medication. The emotional impact on parents related to the uncertainty regarding both immediate and long-term neonatal seizure management is important to address in the clinical setting

Seizures and Antiseizure Medications are Important to Parents of Newborns With Seizures.

BackgroundNeonatal seizures and antiseizure medications both have potentially serious consequences on the developing brain. As such, optimal treatment of neonatal seizures remains unclear. Moreover, little is known about parental experiences, concerns, or unanswered questions. We conducted an online survey to assess parental perspectives regarding neonatal seizures and their management, along with their suggestions for specific high priority research topics.MethodsParents whose children had neonatal seizures were recruited through social media support groups to complete an online survey. Respondents progressed through a tiered series of questions about their experiences with neonatal seizures and antiseizure medications.ResultsThere were 126 eligible respondents. On a Likert scale, parents reported that neonatal seizures had a major effect on their families (median 10 of 10; interquartile range 3; n = 85). They also reported that antiseizure medications had a significant impact on their families (median 7 of 10; interquartile range 5.5; n = 75). The emotional impact of the uncertainty regarding seizures and medications was highlighted. Effects on neurodevelopment, continued seizures, and adverse effects of medications were some of the most commonly reported parental concerns and their highest priority research topics.ConclusionsBoth neonatal seizures and the medications used to treat them contribute to parental worries and have major impact on families. Patient-centered outcomes research should focus on the risk-benefit ratio of neonatal seizures and antiseizure medication. The emotional impact on parents related to the uncertainty regarding both immediate and long-term neonatal seizure management is important to address in the clinical setting

Development and Validation of a Scale to Measure Research Self-Efficacy in Graduate Students

The purpose of this study was to develop and validate a short instrument focusing on research self-efficacy, to be used across disciplines for all graduate students. Using exploratory factor analysis, we provide evidence of the construct validity of the scale, and also describe its internal consistency and predictive validity. Participants were 162 graduate students (15% response rate) at a midsize university in Georgia who were or had been enrolled in graduate courses during the past academic year. Participants responded to the 12 items on the Graduate Student Research Self Efficacy Scale (GRSES) and 8 items of an outcomes expectations (OE) scale. Results suggest that a two factor-model was appropriate. The first factor (41% of the variance) was related to application or implementation of research. The second factor (9% of the variance) was related to acquisition of knowledge in research, early stages or conceptualization of research. The scale showed strong reliability (α = 0.886), and good predictive validity for outcomes expectations of research (r = .423). The overall reliability and predictive validity of the scale are sufficient to recommend the GRSES for future use. Recommendations for item modification or deletion, based on factor analysis results are discussed