NASA Astrophysics Data System (ADS)
Caballero, Marcos D.; Greco, Edwin F.; Murray, Eric R.; Bujak, Keith R.; Jackson Marr, M.; Catrambone, Richard; Kohlmyer, Matthew A.; Schatz, Michael F.
2012-07-01
The performance of over 5000 students in introductory calculus-based mechanics courses at the Georgia Institute of Technology was assessed using the Force Concept Inventory (FCI). Results from two different curricula were compared: a traditional mechanics curriculum and the Matter & Interactions (M&I) curriculum. Both were taught with similar interactive pedagogy. Post-instruction FCI averages were significantly higher for the traditional curriculum than for the M&I curriculum; the differences between curricula persist after accounting for factors such as pre-instruction FCI scores, grade point averages, and SAT scores. FCI performance on categories of items organized by concepts was also compared; traditional averages were significantly higher in each concept. We examined differences in student preparation between the curricula and found that the relative fraction of homework and lecture topics devoted to FCI force and motion concepts correlated with the observed performance differences. Concept inventories, as instruments for evaluating curricular reforms, are generally limited to the particular choice of content and goals of the instrument. Moreover, concept inventories fail to measure what are perhaps the most interesting aspects of reform: the non-overlapping content and goals that are not present in courses without reform.
Rasch model based analysis of the Force Concept Inventory
NASA Astrophysics Data System (ADS)
Planinic, Maja; Ivanjek, Lana; Susac, Ana
2010-06-01
The Force Concept Inventory (FCI) is an important diagnostic instrument which is widely used in the field of physics education research. It is therefore very important to evaluate and monitor its functioning using different tools for statistical analysis. One of such tools is the stochastic Rasch model, which enables construction of linear measures for persons and items from raw test scores and which can provide important insight in the structure and functioning of the test (how item difficulties are distributed within the test, how well the items fit the model, and how well the items work together to define the underlying construct). The data for the Rasch analysis come from the large-scale research conducted in 2006-07, which investigated Croatian high school students’ conceptual understanding of mechanics on a representative sample of 1676 students (age 17-18 years). The instrument used in research was the FCI. The average FCI score for the whole sample was found to be (27.7±0.4)% , indicating that most of the students were still non-Newtonians at the end of high school, despite the fact that physics is a compulsory subject in Croatian schools. The large set of obtained data was analyzed with the Rasch measurement computer software WINSTEPS 3.66. Since the FCI is routinely used as pretest and post-test on two very different types of population (non-Newtonian and predominantly Newtonian), an additional predominantly Newtonian sample ( N=141 , average FCI score of 64.5%) of first year students enrolled in introductory physics course at University of Zagreb was also analyzed. The Rasch model based analysis suggests that the FCI has succeeded in defining a sufficiently unidimensional construct for each population. The analysis of fit of data to the model found no grossly misfitting items which would degrade measurement. Some items with larger misfit and items with significantly different difficulties in the two samples of students do require further examination. The analysis revealed some problems with item distribution in the FCI and suggested that the FCI may function differently in non-Newtonian and predominantly Newtonian population. Some possible improvements of the test are suggested.
Analyzing false positives of four questions in the Force Concept Inventory
NASA Astrophysics Data System (ADS)
Yasuda, Jun-ichiro; Mae, Naohiro; Hull, Michael M.; Taniguchi, Masa-aki
2018-06-01
In this study, we analyze the systematic error from false positives of the Force Concept Inventory (FCI). We compare the systematic errors of question 6 (Q.6), Q.7, and Q.16, for which clearly erroneous reasoning has been found, with Q.5, for which clearly erroneous reasoning has not been found. We determine whether or not a correct response to a given FCI question is a false positive using subquestions. In addition to the 30 original questions, subquestions were introduced for Q.5, Q.6, Q.7, and Q.16. This modified version of the FCI was administered to 1145 university students in Japan from 2015 to 2017. In this paper, we discuss our finding that the systematic errors of Q.6, Q.7, and Q.16 are much larger than that of Q.5 for students with mid-level FCI scores. Furthermore, we find that, averaged over the data sample, the sum of the false positives from Q.5, Q.6, Q.7, and Q.16 is about 10% of the FCI score of a midlevel student.
Functional recovery patterns in seriously injured automotive crash victims.
McMurry, Timothy L; Poplin, Gerald S; Crandall, Jeff
2016-09-01
The functional capacity index (FCI) is designed to predict functional loss 12 months post-injury for each injury in the 2008 Abbreviated Injury Scale (AIS) manual on a scale from 0 (death) to 100 (full recovery), but FCI has never been validated. This study compared FCI predicted loss with patient-reported 12-month outcomes as measured through the Short Form 36 (SF-36) health assessment survey. Using follow-up data collected on 2,858 adult car crash occupants in the Crash Injury Research and Engineering Network (CIREN) database, we compared FCI predicted outcomes to occupants' Physical Component Summary (PCS) scores, which are weighted averages of the SF-36 items addressing physical function. Our analyses included descriptive statistics, plots of typical recovery patterns, and a mixed effects regression model that describes PCS as a function of FCI, demographics, comorbidities, and injury pattern while also adjusting for the occupants' pre-crash physical capabilities. We further examined injuries in patients who report a significant drop in PCS 12 months post-crash despite being predicted to fully recover. At baseline, the CIREN population exhibited PCS scores similar to the overall population (mean = 51.1, SD = 10.3). Twelve months post-crash, occupants with predicted impairment (FCI < 100) report a substantial decrease in physical function, and those who were predicted to fully recover still report some, albeit less, impairment. In the multivariate mixed-effects regression model, FCI is a strongly significant (P-value <.0001) predictor of PCS, with each 1-point drop in FCI predicting a 0.27-point drop in PCS. Maximum AIS severities in the head, spine, and lower extremity body regions were also significantly associated with PCS (P-values <.05). Among occupants who were expected to fully recover but who report a significant drop in PCS at 12 months, spinal fractures without cord involvement account for 5 of the 10 most common AIS 2+ injuries. FCI was associated with 12-month outcomes but may not adequately describe the recovery from some head, spine, and lower extremity injuries. Some occupants who were expected to recover still report functional loss 12 months post-injury.
Dividing the Force Concept Inventory into two equivalent half-length tests
NASA Astrophysics Data System (ADS)
Han, Jing; Bao, Lei; Chen, Li; Cai, Tianfang; Pi, Yuan; Zhou, Shaona; Tu, Yan; Koenig, Kathleen
2015-06-01
The Force Concept Inventory (FCI) is a 30-question multiple-choice assessment that has been a building block for much of the physics education research done today. In practice, there are often concerns regarding the length of the test and possible test-retest effects. Since many studies in the literature use the mean score of the FCI as the primary variable, it would be useful then to have different shorter tests that can produce FCI-equivalent scores while providing the benefits of being quicker to administer and overcoming the test-retest effects. In this study, we divide the 1995 version of the FCI into two half-length tests; each contains a different subset of the original FCI questions. The two new tests are shorter, still cover the same set of concepts, and produce mean scores equivalent to those of the FCI. Using a large quantitative data set collected at a large midwestern university, we statistically compare the assessment features of the two half-length tests and the full-length FCI. The results show that the mean error of equivalent scores between any two of the three tests is within 3%. Scores from all tests are well correlated. Based on the analysis, it appears that the two half-length tests can be a viable option for score based assessment that need to administer tests quickly or need to measure short-term gains where using identical pre- and post-test questions is a concern.
Standardized Testing in Physics via the World Wide Web.
ERIC Educational Resources Information Center
MacIsaac, Dan; Cole, Rebecca Pollard; Cole, David M.; McCullough, Laura; Maxka, Jim
2002-01-01
Examines the differences in paper-based and web-based administrations of a commonly used assessment instrument, the Force Concept Inventory (FCI). Results demonstrated no appreciable difference on FCI scores or FCI items based on the type of administration. Concludes that the web-based administration of the FCI appears to be as efficacious as the…
Gender Differences in Both Force Concept Inventory and Introductory Physics Performance
NASA Astrophysics Data System (ADS)
Docktor, Jennifer; Heller, Kenneth
2008-10-01
We present data from a decade of introductory calculus-based physics courses for science and engineering students at the University of Minnesota taught using cooperative group problem solving. The data include 40 classes with more than 5500 students taught by 22 different professors. The average normalized gain for males is 0.4 for these large classes that emphasized problem solving. Female students made up approximately 20% of these classes. We present relationships between pre and post Force Concept Inventory (FCI) scores, course grades, and final exam scores for females and males. We compare our results with previous studies from Harvard [2] and the University of Colorado [3,4]. Our data show there is a significant gender gap in pre-test FCI scores that persists post-instruction although there is essentially no gender difference in course performance as determined by course grade.
Understanding the relationship between student attitudes and student learning
NASA Astrophysics Data System (ADS)
Cahill, Michael J.; McDaniel, Mark A.; Frey, Regina F.; Hynes, K. Mairin; Repice, Michelle; Zhao, Jiuqing; Trousil, Rebecca
2018-02-01
Student attitudes, defined as the extent to which one holds expertlike beliefs about and approaches to physics, are a major research topic in physics education research. An implicit but rarely tested assumption underlying much of this research is that student attitudes play a significant part in student learning and performance. The current study directly tested this attitude-learning link by measuring the association between incoming attitudes (Colorado Learning Attitudes about Science Survey) and student learning during the semester after statistically controlling for the effects of prior knowledge [early-semester Force Concept Inventory (FCI) or Brief Electricity and Magnetism Assessment (BEMA)]. This study spanned four different courses and included two complementary measures of student knowledge: late-semester concept inventory scores (FCI or BEMA) and exam averages. In three of the four courses, after controlling for prior knowledge, attitudes significantly predicted both late-semester concept inventory scores and exam averages, but in all cases these attitudes explained only a small amount of variance in concept-inventory and exam scores. Results indicate that after accounting for students' incoming knowledge, attitudes may uniquely but modestly relate to how much students learn and how well they perform in the course.
Patterns of Incorrect Responses on the FCI and Course Success
NASA Astrophysics Data System (ADS)
Wells, James; Mokaya, Fridah; Valente, Diego
The Force Concept Inventory (FCI) is often used to measure the effectiveness of instructional pedagogy in introductory physics courses both at the algebra- and calculus-based level. Scores on the FCI are correlated with the performance of students in a class, as measured by their final course grade. We have collected data from several semesters of first-semester introductory mechanics courses at a public 4-year university, taught in large-scale classrooms with pedagogy including elements of Just-in-Time Teaching pedagogy along with active learning course components. The data collected includes pre- and post-test FCI scores, midterm exam grades, and final course grades. We examine whether certain patterns of incorrect answers on the FCI post-test are predictive of course grades, indicating whether certain specific student preconceptions are more detrimental than others to the success of students in an introductory mechanics course. Funding from UConn - College of Liberal Arts and Sciences (CLAS).
Declining financial capacity in mild cognitive impairment: A 1-year longitudinal study.
Triebel, K L; Martin, R; Griffith, H R; Marceaux, J; Okonkwo, O C; Harrell, L; Clark, D; Brockington, J; Bartolucci, A; Marson, Daniel C
2009-09-22
To investigate 1-year change in financial capacity in relation to conversion from amnestic mild cognitive impairment (MCI) to dementia. Seventy-six cognitively healthy older controls, 25 patients with amnestic MCI who converted to Alzheimer-type dementia during the study period (MCI converters), and 62 patients with MCI who did not convert to dementia (MCI nonconverters) were administered the Financial Capacity Instrument (FCI) at baseline and 1-year follow-up. Performance on the FCI domain and global scores was compared within and between groups using multivariate repeated-measures analyses. At baseline, controls performed better than MCI converters and nonconverters on almost all FCI domains and on both FCI total scores. MCI converters performed below nonconverters on domains of financial concepts, cash transactions, bank statement management, and bill payment and on both FCI total scores. At 1-year follow-up, MCI converters showed significantly greater decline than controls and MCI nonconverters for the domain of checkbook management and for both FCI total scores. The domain of bank statement management showed a strong trend. For both the checkbook and bank statement domains, MCI converters showed declines in procedural skills, such as calculating the correct balance in a checkbook register, but not in conceptual understanding of a checkbook or a bank statement. Declining financial skills are detectable in patients with mild cognitive impairment (MCI) in the year before their conversion to Alzheimer disease. Clinicians should proactively monitor patients with MCI for declining financial skills and advise patients and families about appropriate interventions.
A Comparison of Paper-Based and Web-Based Testing.
ERIC Educational Resources Information Center
Cole, Rebecca Pollard; MacIsaac, Dan; Cole, David M.
The purpose of this study (1,313 college student participants) was to examine the differences in paper-based and Web-based administrations of a commonly used assessment instrument, the Force Concept Inventory (FCI) (D. Hestenes, M. Wells, and G. Swackhamer, 1992). Results demonstrated no appreciable difference on FCI scores or FCI items based on…
Griffith, H Randall; Stewart, Christopher C; Stoeckel, Luke E; Okonkwo, Ozioma C; den Hollander, Jan A; Martin, Roy C; Belue, Katherine; Copeland, Jacquelynn N; Harrell, Lindy E; Brockington, John C; Clark, David G; Marson, Daniel C
2010-02-01
To better understand how brain atrophy in amnestic mild cognitive impairment (MCI) as measured using magnetic resonance imaging (MRI) volumetrics could affect instrumental activities of daily living (IADLs) such as financial abilities. Controlled, matched-sample, cross-sectional analysis regressing MRI volumetrics with financial performance measures. University medical and research center. Thirty-eight people with MCI and 28 older adult controls. MRI volumetric measurement of the hippocampi, angular gyri, precunei, and medial frontal lobes. Participants also completed neuropsychological tests and the Financial Capacity Instrument (FCI). Correlations were performed between FCI scores and MRI volumes in the group with MCI. People with MCI performed significantly below controls on the FCI and had significantly smaller hippocampi. Among people with MCI, performance on the FCI was moderately correlated with angular gyri and precunei volumes. Regression models demonstrated that angular gyrus volumes were predictive of FCI scores. Tests of mediation showed that measures of arithmetic and possibly attention partially mediated the relationship between angular gyrus volume and FCI score. Impaired financial abilities in amnestic MCI correspond with volume of the angular gyri as mediated by arithmetic knowledge. The findings suggest that early neuropathology within the lateral parietal region in MCI leads to a breakdown of cognitive abilities that affect everyday financial skills. The findings have implications for diagnosis and clinical care of people with MCI and AD.
NASA Astrophysics Data System (ADS)
Valente, Diego; Savkar, Amit; Mokaya, Fridah; Wells, James
The Force Concept Inventory (FCI) has been analyzed and studied in various ways with regards to students' understanding of basic physics concepts. We present normalized learning gains and effect size calculations of FCI scores, taken in the context of large-scale classes in a 4-year public university and course instruction that incorporates elements of Just-In-Time teaching and active learning components. In addition, we will present here a novel way of using FCI pre- and post-test as a predictor of students' performance on midterm and final exams. Utilizing a taxonomy table of physics concepts, we will look at student performance broken down by topic, while also examining possible correlations between FCI post-test scores and other course assessments. College of Liberal Arts and Sciences (CLAS), UConn.
FINANCIAL CAPACITY OF OLDER AFRICAN AMERICANS WITH AMNESTIC MILD COGNITIVE IMPAIRMENT
Triebel, Kristen L.; Okonkwo, Ozioma C.; Martin, Roy; Griffith, H. Randall; Crowther, Martha; Marson, Daniel C.
2010-01-01
This study investigated financial abilities of 154 patients with mild cognitive impairment (MCI) (116 Caucasian, 38 African American) using the Financial Capacity Instrument (FCI). In a series of linear regression models, we examined the effect of race on FCI performance and identified preliminary predictor variables that mediated observed racial differences on the FCI. Prior/premorbid abilities were identified. Predictor variables examined in the models included race and other demographic factors (age, education, gender), performance on global cognitive measures (MMSE, DRS-2 Total Score), history of cardiovascular disease (hypertension, diabetes, hypercholesterolemia), and a measure of educational achievement (WRAT-3 Arithmetic). African American patients with MCI performed below Caucasian patients with MCI on six of the seven FCI domains examined and on the FCI total score. WRAT-3 Arithmetic emerged as a partial mediator of group differences on the FCI, accounting for 54% of variance. In contrast, performance on global cognitive measures and history of cardiovascular disease only accounted for 14% and 2%, respectively, of the variance. Racial disparities in financial capacity appear to exist among patients with amnestic MCI. Basic academic math skills related to educational opportunity and quality of education account for a substantial proportion of the group difference in financial performance. PMID:20625268
Financial capacity of older African Americans with amnestic mild cognitive impairment.
Triebel, Kristen L; Okonkwo, Ozioma C; Martin, Roy; Griffith, Henry Randall; Crowther, Martha; Marson, Daniel C
2010-01-01
This study investigated financial abilities of 154 patients with mild cognitive impairment (MCI) (116 white, 38 African American) using the Financial Capacity Instrument (FCI). In a series of linear regression models, we examined the effect of race on FCI performance and identified preliminary predictor variables that mediated observed racial differences on the FCI. Prior/premorbid abilities were identified. Predictor variables examined in the models included race and other demographic factors (age, education, sex), performance on global cognitive measures (MMSE, DRS-2 Total Score), history of cardiovascular disease (hypertension, diabetes, hypercholesterolemia), and a measure of educational achievement (WRAT-3 Arithmetic). African American patients with MCI performed below white patients with MCI on 6 of the 7 FCI domains examined and on the FCI total score. WRAT-3 Arithmetic emerged as a partial mediator of group differences on the FCI, accounting for 54% of variance. In contrast, performance on global cognitive measures and history of cardiovascular disease only accounted for 14% and 2%, respectively, of the variance. Racial disparities in financial capacity seem to exist among patients with amnestic MCI. Basic academic math skills related to educational opportunity and quality of education account for a substantial proportion of the group difference in financial performance.
ERIC Educational Resources Information Center
Luangrath, Phimpho; Pettersson, Sune; Benckert, Sylvia
2011-01-01
In this study, we investigated why Laotian students had a low score, when they were tested by the Force Concept Inventory (FCI). About 400 first year university students answered the FCI or a Lao version of the FCI (LFCI) with the contexts of some questions changed. The students answered a questionnaire and 34 of the students were interviewed. The…
Food cravings among Brazilian population.
Queiroz de Medeiros, Anna Cecília; Pedrosa, Lucia de Fatima Campos; Yamamoto, Maria Emilia
2017-01-01
This study aimed to develop and validate a Brazilian version of the Food Craving Inventory (FCI-Br), adapted to the cultural-gastronomic context of Brazil, and to explore this behavior among adult Brazilians. The Study 1 population consisted of 453 adults from all regions of Brazil. Participants responded to a preliminary form of the instrument online. Exploratory factor analysis revealed an FCI-Br presenting 23 items and three factors: High Fat, Sweet Food and Traditional Meal. The FCI-Br overall reliability was considered adequate (α = 0.82), as were each of the sub-scales. The food items receiving higher average scores from the application of the instrument were chocolate (3.14 ± 1.28; women) and bread (2.94 ± 1.44, men). A significant association was observed between the specific-craving for Sweet Food and female respondents. Most participants reported experiencing more frequent episodes of food craving when alone (68.0%; n = 391) and during the afternoon (32.2%; n = 127) or evening (43.8%; n = 173) hours. Application of the FCI-Br in a population of 649 university students (Study 2) demonstrated a good adjustment of the model developed according to the Confirmatory factor analysis (χ 2 /gl = 2.82, CFI = 0.94; TLI = 0.93; RMSEA = 0.06). The current findings indicate that the FCI-Br has adequate psychometric properties to measure craving behavior with respect to specific food groups in the resident population of Brazil. The results of this study also shed light on the importance of considering the cultural diversity of a population when investigating eating behaviors. Copyright © 2016 Elsevier Ltd. All rights reserved.
NASA Astrophysics Data System (ADS)
Aggeliki, Anagnostopoulou; Miltiades, Kyprianou; Antigoni-Elisavet, Rota; Evangelia, Pavlatou; Loizos, Zaphiris
2017-09-01
Depression may essentially influence cognitive function contributing to poor school performance. The present study undertakes to determine the existence and strength of correlation between depressive symptomatology and other mental conditions with the acquired level of understanding of Newtonian physics taught in schools. The current study recruited 490 students (262 girls, 228 boys) attending the first semester of the Greek Second Grade of General Lyceum School. Force Concept Inventory (FCI) tested the depth of the students’ understanding of Newtonian Physics. Symptom Checklist-90-R assessed general mental status. The tests took place in the classroom during a 1 h session. Low FCI scores significantly correlated with mental conditions, with depression ranking first. Girls had higher scores in all nine symptoms scales of SCL-90 and lower FCI scores. Stepwise regression models proved that the gender effect on FCI could be effectively explained through the significant effect of depression. An understanding of Newtonian physics among high school students may be restricted by common problematic mental conditions, with depression being the greatest among all. Further research, using a more systematic approach to measure depression among adolescents with poor understanding of physics, would help to elucidate the nature of the effect.
Analyzing force concept inventory with item response theory
NASA Astrophysics Data System (ADS)
Wang, Jing; Bao, Lei
2010-10-01
Item response theory is a popular assessment method used in education. It rests on the assumption of a probability framework that relates students' innate ability and their performance on test questions. Item response theory transforms students' raw test scores into a scaled proficiency score, which can be used to compare results obtained with different test questions. The scaled score also addresses the issues of ceiling effects and guessing, which commonly exist in quantitative assessment. We used item response theory to analyze the force concept inventory (FCI). Our results show that item response theory can be useful for analyzing physics concept surveys such as the FCI and produces results about the individual questions and student performance that are beyond the capability of classical statistics. The theory yields detailed measurement parameters regarding the difficulty, discrimination features, and probability of correct guess for each of the FCI questions.
Gender fairness within the Force Concept Inventory
NASA Astrophysics Data System (ADS)
Traxler, Adrienne; Henderson, Rachel; Stewart, John; Stewart, Gay; Papak, Alexis; Lindell, Rebecca
2018-01-01
Research on the test structure of the Force Concept Inventory (FCI) has largely ignored gender, and research on FCI gender effects (often reported as "gender gaps") has seldom interrogated the structure of the test. These rarely crossed streams of research leave open the possibility that the FCI may not be structurally valid across genders, particularly since many reported results come from calculus-based courses where 75% or more of the students are men. We examine the FCI considering both psychometrics and gender disaggregation (while acknowledging this as a binary simplification), and find several problematic questions whose removal decreases the apparent gender gap. We analyze three samples (total Npre=5391 , Npost=5769 ) looking for gender asymmetries using classical test theory, item response theory, and differential item functioning. The combination of these methods highlights six items that appear substantially unfair to women and two items biased in favor of women. No single physical concept or prior experience unifies these questions, but they are broadly consistent with problematic items identified in previous research. Removing all significantly gender-unfair items halves the gender gap in the main sample in this study. We recommend that instructors using the FCI report the reduced-instrument score as well as the 30-item score, and that credit or other benefits to students not be assigned using the biased items.
Declining Financial Capacity in Mild Cognitive Impairment: A Six-Year Longitudinal Study.
Martin, Roy C; Gerstenecker, Adam; Triebel, Kristen L; Falola, Michael; McPherson, Tarrant; Cutter, Gary; Marson, Daniel C
2018-03-31
To investigate financial skill decline over a 6-year period in persons with mild cognitive impairment (MCI) presumed due to Alzheimer's disease (AD). Study participants were cognitively normal (CN) older adults (n = 82) and adults with MCI (n = 91) based on consensus conference diagnosis. Participants completed baseline and up to six annual follow-up assessments that included standardized financial skills measurement (Financial Capacity Instrument; FCI; nine FCI domain and two global scores). We examined FCI change over time using mixed-model repeated measures analysis adjusted for baseline age and follow-up duration. At baseline, the CN group performed better than the MCI group across both global and seven domain scores. Group × Time interaction effects (all p's <.02) were found for all global and domain scores. The largest interaction effects were observed for complex domains of Financial Conceptual Knowledge, Checkbook Management, Bank Statement Management, and Bill Payment (all p's <.0001). Annualized decline in the MCI group's global scores, calculated in relation to CN group performance, was 10-17% over the initial 3-year time span and 22-24% at 6 years. Decline in FCI domain scores ranged from 6% (Knowledge of Assets/Estate) to 22% (Investment Decision-Making) at 3 year follow-up, and from 15% (Basic Monetary Skills) to 37% (Financial Judgment) at 6 year follow-up. Over a 6-year period, persons with MCI demonstrated significant declines in multiple financial skills and in particular financial judgment. The findings highlight the importance of ongoing oversight by family members and clinicians of financial skills and activities in persons with MCI.
Experimental Validation of the Half-Length Force Concept Inventory
ERIC Educational Resources Information Center
Han, Jing; Koenig, Kathleen; Cui, Lili; Fritchman, Joseph; Li, Dan; Sun, Wanyi; Fu, Zhao; Bao, Lei
2016-01-01
In a recent study, the 30-question Force Concept Inventory (FCI) was theoretically split into two 14-question "half-length" tests (HFCIs) covering the same set of concepts and producing mean scores that can be equated to those of the original FCI. The HFCIs require less administration time and reduce test-retest issues when different…
Dividing the Force Concept Inventory into Two Equivalent Half-Length Tests
ERIC Educational Resources Information Center
Han, Jing; Bao, Lei; Chen, Li; Cai, Tianfang; Pi, Yuan; Zhou, Shaona; Tu, Yan; Koenig, Kathleen
2015-01-01
The Force Concept Inventory (FCI) is a 30-question multiple-choice assessment that has been a building block for much of the physics education research done today. In practice, there are often concerns regarding the length of the test and possible test-retest effects. Since many studies in the literature use the mean score of the FCI as the…
Can dual processing theory explain physics students' performance on the Force Concept Inventory?
NASA Astrophysics Data System (ADS)
Wood, Anna K.; Galloway, Ross K.; Hardy, Judy
2016-12-01
According to dual processing theory there are two types, or modes, of thinking: system 1, which involves intuitive and nonreflective thinking, and system 2, which is more deliberate and requires conscious effort and thought. The Cognitive Reflection Test (CRT) is a widely used and robust three item instrument that measures the tendency to override system 1 thinking and to engage in reflective, system 2 thinking. Each item on the CRT has an intuitive (but wrong) answer that must be rejected in order to answer the item correctly. We therefore hypothesized that performance on the CRT may give useful insights into the cognitive processes involved in learning physics, where success involves rejecting the common, intuitive ideas about the world (often called misconceptions) and instead carefully applying physical concepts. This paper presents initial results from an ongoing study examining the relationship between students' CRT scores and their performance on the Force Concept Inventory (FCI), which tests students' understanding of Newtonian mechanics. We find that a higher CRT score predicts a higher FCI score for both precourse and postcourse tests. However, we also find that the FCI normalized gain is independent of CRT score. The implications of these results are discussed.
NASA Astrophysics Data System (ADS)
Nieminen, Pasi; Savinainen, Antti; Viiri, Jouni
2010-07-01
This study investigates students’ ability to interpret multiple representations consistently (i.e., representational consistency) in the context of the force concept. For this purpose we developed the Representational Variant of the Force Concept Inventory (R-FCI), which makes use of nine items from the 1995 version of the Force Concept Inventory (FCI). These original FCI items were redesigned using various representations (such as motion map, vectorial and graphical), yielding 27 multiple-choice items concerning four central concepts underpinning the force concept: Newton’s first, second, and third laws, and gravitation. We provide some evidence for the validity and reliability of the R-FCI; this analysis is limited to the student population of one Finnish high school. The students took the R-FCI at the beginning and at the end of their first high school physics course. We found that students’ (n=168) representational consistency (whether scientifically correct or not) varied considerably depending on the concept. On average, representational consistency and scientifically correct understanding increased during the instruction, although in the post-test only a few students performed consistently both in terms of representations and scientifically correct understanding. We also compared students’ (n=87) results of the R-FCI and the FCI, and found that they correlated quite well.
Gerstenecker, Adam; Eakin, Amanda; Triebel, Kristen; Martin, Roy; Swenson-Dravis, Dana; Petersen, Ronald C; Marson, Daniel
2016-06-01
Financial capacity is an instrumental activity of daily living (IADL) that comprises multiple abilities and is critical to independence and autonomy in older adults. Because of its cognitive complexity, financial capacity is often the first IADL to show decline in prodromal and clinical Alzheimer's disease and related disorders. Despite its importance, few standardized assessment measures of financial capacity exist and there is little, if any, normative data available to evaluate financial skills in the elderly. The Financial Capacity Instrument-Short Form (FCI-SF) is a brief measure of financial skills designed to evaluate financial skills in older adults with cognitive impairment. In the current study, we present age- and education-adjusted normative data for FCI-SF variables in a sample of 1344 cognitively normal, community-dwelling older adults participating in the Mayo Clinic Study of Aging (MCSA) in Olmsted County, Minnesota. Individual FCI-SF raw scores were first converted to age-corrected scaled scores based on position within a cumulative frequency distribution and then grouped within 4 empirically supported and overlapping age ranges. These age-corrected scaled scores were then converted to age- and education-corrected scaled scores using the same methodology. This study has the potential to substantially enhance financial capacity evaluations of older adults through the introduction of age- and education-corrected normative data for the FCI-SF by allowing clinicians to: (a) compare an individual's performance to that of a sample of similar age and education peers, (b) interpret various aspects of financial capacity relative to a normative sample, and (c) make comparisons between these aspects. (PsycINFO Database Record (c) 2016 APA, all rights reserved).
Validating two questions in the Force Concept Inventory with subquestions
NASA Astrophysics Data System (ADS)
Yasuda, Jun-ichiro; Taniguchi, Masa-aki
2013-06-01
In this study, we evaluate the structural validity of Q.16 and Q.7 in the Force Concept Inventory (FCI). We address whether respondents who answer Q.16 and Q.7 correctly actually have an understanding of the concepts of physics tested in the questions. To examine respondents’ levels of understanding, we use subquestions that test them on concepts believed to be required to answer the actual FCI questions. Our sample size comprises 111 respondents; we derive false-positive ratios for prelearners and postlearners and then statistically test the difference between them. We find a difference at the 0.05 significance level for both Q.16 and Q.7, implying that it is possible for postlearners to answer both questions without an understanding of the concepts of physics tested in the questions; therefore, the structures of Q.16 and Q.7 are invalid. In this study, we only evaluate the validity of these two FCI questions; we do not assess the validity of previous studies that have compared total FCI scores.
Assessing students' conceptual knowledge of electricity and magnetism
NASA Astrophysics Data System (ADS)
McColgan, Michele W.; Finn, Rose A.; Broder, Darren L.; Hassel, George E.
2017-12-01
We present the Electricity and Magnetism Conceptual Assessment (EMCA), a new assessment aligned with second-semester introductory physics courses. Topics covered include electrostatics, electric fields, circuits, magnetism, and induction. We have two motives for writing a new assessment. First, we find other assessments such as the Brief Electricity and Magnetism Assessment and the Conceptual Survey on Electricity and Magnetism not well aligned with the topics and content depth of our courses. We want to test introductory physics content at a level appropriate for our students. Second, we want the assessment to yield scores and gains comparable to the widely used Force Concept Inventory (FCI). After five testing and revision cycles, the assessment was finalized in early 2015 and is available online. We present performance results for a cohort of 225 students at Siena College who were enrolled in our algebra- and calculus-based physics courses during the spring 2015 and 2016 semesters. We provide pretest, post-test, and gain analyses, as well as individual question and whole test statistics to quantify difficulty and reliability. In addition, we compare EMCA and FCI scores and gains, and we find that students' FCI scores are strongly correlated with their performance on the EMCA. Finally, the assessment was piloted in an algebra-based physics course at George Washington University (GWU). We present performance results for a cohort of 130 GWU students and we find that their EMCA scores are comparable to the scores of students in our calculus-based physics course.
NASA Astrophysics Data System (ADS)
Coletta, Vincent P.; Phillips, Jeffrey A.; Savinainen, Antti; Steinert, Jeffrey J.
2008-09-01
In a recent article, Ates and Cataloglu (2007 Eur. J. Phys. 28 1161-71), in analysing results for a course in introductory mechanics for prospective science teachers, found no statistically significant correlation between students' pre-instruction scores on the Lawson classroom test of scientific reasoning ability (CTSR) and post-instruction scores on the force concept inventory (FCI). As a possible explanation, the authors suggest that the FCI does not probe for skills required to determine reasoning abilities. Our previously published research directly contradicts the authors' finding. We summarize our research and present a likely explanation for their observation of no correlation.
Current food chain information provides insufficient information for modern meat inspection of pigs.
Felin, Elina; Jukola, Elias; Raulo, Saara; Heinonen, Jaakko; Fredriksson-Ahomaa, Maria
2016-05-01
Meat inspection now incorporates a more risk-based approach for protecting human health against meat-borne biological hazards. Official post-mortem meat inspection of pigs has shifted to visual meat inspection. The official veterinarian decides on additional post-mortem inspection procedures, such as incisions and palpations. The decision is based on declarations in the food chain information (FCI), ante-mortem inspection and post-mortem inspection. However, a smooth slaughter and inspection process is essential. Therefore, one should be able to assess prior to slaughter which pigs are suitable for visual meat inspection only, and which need more profound inspection procedures. This study evaluates the usability of the FCI provided by pig producers and considered the possibility for risk ranking of incoming slaughter batches according to the previous meat inspection data and the current FCI. Eighty-five slaughter batches comprising 8954 fattening pigs were randomly selected at a slaughterhouse that receives animals from across Finland. The mortality rate, the FCI and the meat inspection results for each batch were obtained. The current FCI alone provided insufficient and inaccurate information for risk ranking purposes for meat inspection. The partial condemnation rate for a batch was best predicted by the partial condemnation rate calculated for all the pigs sent for slaughter from the same holding in the previous year (p<0.001) and by prior information on cough declared in the current FCI (p=0.02) statement. Training and information to producers are needed to make the FCI reporting procedures more accurate. Historical meat inspection data on pigs slaughtered from the same holdings and well-chosen symptoms/signs for reporting, should be included in the FCI to facilitate the allocation of pigs for visual inspection. The introduced simple scoring system can be easily used for additional information for directing batches to appropriate meat inspection procedures. To control the main biological public health hazards related to pork, serological surveillance should be done and the information obtained from analyses should be used as part of the FCI. Copyright © 2016 Elsevier B.V. All rights reserved.
Confirmatory factor analysis applied to the Force Concept Inventory
NASA Astrophysics Data System (ADS)
Eaton, Philip; Willoughby, Shannon D.
2018-06-01
In 1995, Huffman and Heller used exploratory factor analysis to draw into question the factors of the Force Concept Inventory (FCI). Since then several papers have been published examining the factors of the FCI on larger sets of student responses and understandable factors were extracted as a result. However, none of these proposed factor models have been verified to not be unique to their original sample through the use of independent sets of data. This paper seeks to confirm the factor models proposed by Scott et al. in 2012, and Hestenes et al. in 1992, as well as another expert model proposed within this study through the use of confirmatory factor analysis (CFA) and a sample of 20 822 postinstruction student responses to the FCI. Upon application of CFA using the full sample, all three models were found to fit the data with acceptable global fit statistics. However, when CFA was performed using these models on smaller sample sizes the models proposed by Scott et al. and Eaton and Willoughby were found to be far more stable than the model proposed by Hestenes et al. The goodness of fit of these models to the data suggests that the FCI can be scored on factors that are not unique to a single class. These scores could then be used to comment on how instruction methods effect the performance of students along a single factor and more in-depth analyses of curriculum changes may be possible as a result.
Meta-analysis of teaching methods: a 50k+ student study
NASA Astrophysics Data System (ADS)
Sayre, Eleanor; Archibeque, Benjamin; Gomez, K. Alison; Heckendorf, Tyrel; Madsen, Adrian M.; McKagan, Sarah B.; Schenk, Edward W.; Shepard, Chase; Sorell, Lane; von Korff, Joshua
2015-04-01
The Force Concept Inventory (FCI) and the Force and Motion Conceptual Evaluation (FMCE) are the two most widely-used conceptual tests in introductory mechanics. Because they are so popular, they provide an excellent avenue to compare different teaching methods at different kinds of institutions with varying student populations. We conducted a secondary analysis of all peer-reviewed papers which publish data from US and Canadian colleges and universities. Our data include over fifty thousand students drawn from approximately 100 papers; papers were drawn from Scopus, ERIC, ComPADRE, and journal websites. We augment published data about teaching methods with institutional data such as Carnegie Classification and average SAT scores. We statistically determine the effectiveness of different teaching methods as measured by FCI and FMCE gains and mediated by institutional and course factors. As in the landmark 1998 Hake study, we find that classes using interactive engagement (IE) have significantly larger learning gains than classes using traditional instruction. However, we find a broader distribution of normalized gains occurs in each of traditional and IE classes, and the differences between IE and traditional instruction have changed over time and are more context dependent.
Measuring Student Effort and Engagement in an Introductory Physics Course
NASA Astrophysics Data System (ADS)
Bonham, Scott
2007-11-01
Multiple scales reflecting student effort were developed using factor and scale analysis on data from an introductory physics course. This data included interactions with an on-line homework system. One of the scales displays many characteristics of a metric of the individual level of engagement in the course. This scale is shown to be a good predictor of performance on class exams and the Force Concept Inventory (FCI). Furthermore, normalized learning gains on the FCI are well predicted by this scale while pre-instructional FCI scores provide no additional predictive ability, agreeing with observations by Richard Hake. This scale also correlates strongly with epistemological beliefs that learning is related to effort and is the responsibility of the student. The factors that enter into this scale, writing and mastering expert-like problem-solving, are consistent with this being a measure of individual levels of class engagement.
Tutorials in Introductory Physics: The Pain and the Gain
ERIC Educational Resources Information Center
Cruz, Emerson; O'Shea, Brian; Schaffenberger, Werner; Wolf, Steven; Kortemeyer, Gerd
2010-01-01
In an introductory physics sequence with a large enrollment of premedical students, traditional recitation sessions were replaced by "Tutorials in Introductory Physics," developed by the Physics Education Group at the University of Washington. Initially, summative test scores (as well as FCI scores) dramatically increased, but so did…
The effects of modeling instruction on high school physics academic achievement
NASA Astrophysics Data System (ADS)
Wright, Tiffanie L.
The purpose of this study was to explore whether Modeling Instruction, compared to traditional lecturing, is an effective instructional method to promote academic achievement in selected high school physics classes at a rural middle Tennessee high school. This study used an ex post facto , quasi-experimental research methodology. The independent variables in this study were the instructional methods of teaching. The treatment variable was Modeling Instruction and the control variable was traditional lecture instruction. The Treatment Group consisted of participants in Physical World Concepts who received Modeling Instruction. The Control Group consisted of participants in Physical Science who received traditional lecture instruction. The dependent variable was gains scores on the Force Concepts Inventory (FCI). The participants for this study were 133 students each in both the Treatment and Control Groups (n = 266), who attended a public, high school in rural middle Tennessee. The participants were administered the Force Concepts Inventory (FCI) prior to being taught the mechanics of physics. The FCI data were entered into the computer-based Statistical Package for the Social Science (SPSS). Two independent samples t-tests were conducted to answer the research questions. There was a statistically significant difference between the treatment and control groups concerning the instructional method. Modeling Instructional methods were found to be effective in increasing the academic achievement of students in high school physics. There was no statistically significant difference between FCI gains scores for gender. Gender was found to have no effect on the academic achievement of students in high school physics classes. However, even though there was not a statistically significant difference, female students' gains scores were higher than male students' gains scores when Modeling Instructional methods of teaching were used. Based on these findings, it is recommended that high school science teachers should use Modeling Instructional methods of teaching daily in their classrooms. A recommendation for further research is to expand the Modeling Instructional methods of teaching into different content areas, (i.e., reading and language arts) to explore academic achievement gains.
Toward equity through participation in Modeling Instruction in introductory university physics
NASA Astrophysics Data System (ADS)
Brewe, Eric; Sawtelle, Vashti; Kramer, Laird H.; O'Brien, George E.; Rodriguez, Idaykis; Pamelá, Priscilla
2010-06-01
We report the results of a five year evaluation of the reform of introductory calculus-based physics by implementation of Modeling Instruction (MI) at Florida International University (FIU), a Hispanic-serving institution. MI is described in the context of FIU’s overall effort to enhance student participation in physics and science broadly. Our analysis of MI from a “participationist” perspective on learning identifies aspects of MI including conceptually based instruction, culturally sensitive instruction, and cooperative group learning, which are consistent with research on supporting equitable learning and participation by students historically under-represented in physics (i.e., Black, Hispanic, women). This study uses markers of conceptual understanding as measured by the Force Concept Inventory (FCI) and odds of success as measured by the ratio of students completing introductory physics and earning a passing grade (i.e., C- or better) by students historically under-represented in physics to reflect equity and participation in introductory physics. FCI pre and post scores for students in MI are compared with lecture-format taught students. Modeling Instruction students outperform students taught in lecture-format classes on post instruction FCI (61.9% vs 47.9%, p<0.001 ), where these benefits are seen across both ethnic and gender comparisons. In addition, we report that the odds of success in MI are 6.73 times greater than in lecture instruction. Both odds of success and FCI scores within Modeling Instruction are further disaggregated by ethnicity and by gender to address the question of equity within the treatment. The results of this disaggregation indicate that although ethnically under-represented students enter with lower overall conceptual understanding scores, the gap is not widened during introductory physics but instead is maintained, and the odds of success for under-represented students is not different from majority students. Women, similarly enter with scores indicating lower conceptual understanding, and over the course of MI this understanding gap increases, yet we do not find differences in the odds of success between men and women. Contrasting these results with the participationist view on learning indicates a movement toward greater equity in introductory physics but also indicates that the instructional environment can be improved.
Prevalence and co-occurrence of hip dysplasia and elbow dysplasia in Dutch pure-bred dogs.
Lavrijsen, I C M; Heuven, H C M; Meij, B P; Theyse, L F H; Nap, R C; Leegwater, P A J; Hazewinkel, H A W
2014-05-01
Hip as well as elbow dysplasia (HD, ED) are developmental disorders leading to malformation of their respective joints. For a long time both disorders have been scored and targeted for improvement using selective breeding in several Dutch dog populations. In this paper all scores for both HD and ED, given to pure bred dogs in the Netherlands from 2002 to 2010, were analyzed. Heritabilities and correlations between HD and ED were calculated for the 4 most frequently scored breeds. Heritabilities ranged from 0.0 to 0.37 for HD related traits (FCI-score, osteoarthritis, congruity, shape and laxity (Norberg angle); FCI: Fédération Cynologique Internationale) and from 0.0 to 0.39 for ED related traits (IEWG score, osteoarthritis, sclerosis and indentation; IEWG: International Elbow Working Group). HD related traits showed high genetic and residual correlations among each other but were only to a minor extent correlated with ED related traits, which also showed high correlations among each other. Genetic correlations were higher than residual correlations. Phenotypic and genetic trends since 2001 for the four most scored breeds were slightly positive but decreasing over time, indicating that selection over the past decade has not been effective. Copyright © 2014. Published by Elsevier B.V.
Validation of the rheumatic disease comorbidity index.
England, Bryant R; Sayles, Harlan; Mikuls, Ted R; Johnson, Dannette S; Michaud, Kaleb
2015-05-01
There is no consensus on which comorbidity index is optimal for rheumatic health outcomes research. We compared a new Rheumatic Disease Comorbidity Index (RDCI) with the Charlson-Deyo Index (CDI), Functional Comorbidity Index (FCI), Elixhauser Total Score (ETS), Elixhauser Point System (EPS), and a simple comorbidity count (COUNT) using a US cohort of rheumatoid arthritis (RA) patients. Using administrative diagnostic codes and patient self-reporting, we tested predictive values of the RDCI, CDI, FCI, ETS, EPS, and COUNT for 2 outcomes: all-cause mortality and physical functioning. Indices were compared using 3 models: bare (consisting of age, sex, and race), administrative (bare plus visit frequency, body mass index, and treatments), and clinic (administrative plus erythrocyte sedimentation rate, nodules, rheumatoid factor positivity, and patient activity scale). The ETS and RDCI best predicted death, with FCI performing the worst. The FCI best predicted function, with ETS and RDCI performing nearly as well. CDI predicted function poorly. The order of indices remained relatively unchanged in the different models, though the magnitude of improvement in Akaike's information criterion decreased in the administrative and clinic models. The RDCI and ETS are excellent indices as a means of accounting for comorbid illness when the RA-related outcomes of death and physical functioning are studied using administrative data. The RDCI is a versatile index and appears to perform well with self-report data as well as administrative data. Further studies are warranted to compare these indices using other outcomes in diverse study populations. © 2015, American College of Rheumatology.
Improving student learning and views of physics in a large enrollment introductory physics class
NASA Astrophysics Data System (ADS)
Salehzadeh Einabad, Omid
Introductory physics courses often serve as gatekeepers for many scientific and engineering programs and, increasingly, colleges are relying on large, lecture formats for these courses. Many students, however, leave having learned very little physics and with poor views of the subject. In interactive engagement (IE), classroom activities encourage students to engage with each other and with physics concepts and to be actively involved in their own learning. These methods have been shown to be effective in introductory physics classes with small group recitations. This study examined student learning and views of physics in a large enrollment course that included IE methods with no separate, small-group recitations. In this study, a large, lecture-based course included activities that had students explaining their reasoning both verbally and in writing, revise their ideas about physics concepts, and apply their reasoning to various problems. The questions addressed were: (a) What do students learn about physics concepts and how does student learning in this course compare to that reported in the literature for students in a traditional course?, (b) Do students' views of physics change and how do students' views of physics compare to that reported in the literature for students in a traditional course?, and (c) Which of the instructional strategies contribute to student learning in this course? Data included: pre-post administration of the Force Concept Inventory (FCI), classroom exams during the term, pre-post administration of the Colorado Learning Attitudes About Science Survey (CLASS), and student work, interviews, and open-ended surveys. The average normalized gain (=0.32) on the FCI falls within the medium-gain range as reported in the physics education literature, even though the average pre-test score was very low (30%) and this was the instructor's first implementation of IE methods. Students' views of physics remained relatively unchanged by instruction. Findings also indicate that the interaction of the instructional strategies together contributed to student learning. Based on these results, IE methods should be adopted in introductory physics classes, particularly in classes where students have low pre-test scores. It is also important to provide support for instructors new to IE strategies.
Students' proficiency scores within multitrait item response theory
NASA Astrophysics Data System (ADS)
Scott, Terry F.; Schumayer, Daniel
2015-12-01
In this paper we present a series of item response models of data collected using the Force Concept Inventory. The Force Concept Inventory (FCI) was designed to poll the Newtonian conception of force viewed as a multidimensional concept, that is, as a complex of distinguishable conceptual dimensions. Several previous studies have developed single-trait item response models of FCI data; however, we feel that multidimensional models are also appropriate given the explicitly multidimensional design of the inventory. The models employed in the research reported here vary in both the number of fitting parameters and the number of underlying latent traits assumed. We calculate several model information statistics to ensure adequate model fit and to determine which of the models provides the optimal balance of information and parsimony. Our analysis indicates that all item response models tested, from the single-trait Rasch model through to a model with ten latent traits, satisfy the standard requirements of fit. However, analysis of model information criteria indicates that the five-trait model is optimal. We note that an earlier factor analysis of the same FCI data also led to a five-factor model. Furthermore the factors in our previous study and the traits identified in the current work match each other well. The optimal five-trait model assigns proficiency scores to all respondents for each of the five traits. We construct a correlation matrix between the proficiencies in each of these traits. This correlation matrix shows strong correlations between some proficiencies, and strong anticorrelations between others. We present an interpretation of this correlation matrix.
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Students' Proficiency Scores within Multitrait Item Response Theory
ERIC Educational Resources Information Center
Scott, Terry F.; Schumayer, Daniel
2015-01-01
In this paper we present a series of item response models of data collected using the Force Concept Inventory. The Force Concept Inventory (FCI) was designed to poll the Newtonian conception of force viewed as a multidimensional concept, that is, as a complex of distinguishable conceptual dimensions. Several previous studies have developed…
Polarization of Physics on Global Courses
ERIC Educational Resources Information Center
Alinea, Allan L.; Naylor, Wade
2015-01-01
Since October 2010, the Chemistry-Biology Combined Major Program, an international course taught in English at Osaka University, has been teaching small classes (no more than 20 in size). We present data from the Force Concept Inventory (FCI) given to first-year classical mechanics students (N = 47 students over three years) pre and post score,…
Evaluating learning and teaching using the Force Concept Inventory
NASA Astrophysics Data System (ADS)
Zitzewitz, Paul
1997-04-01
Teaching methods used in the calculus-based mechanics course for engineers and scientists (P150) at the University of Michigan-Dearborn were markedly changed in September, 1996. Lectures emphasize active learning with Mazur's ConcepTests, Sokoloff's Interactive Demonstrations, and Van Heuvelen's ALPS Kit worksheets. Students solve context-rich problems using Van Heuvelen's multiple representation format in cooperative groups in discussion sections. Labs were changed to use MBL emphasizing concepts and Experiment Problems to learn lab-based problem solving. Pre- and post-testing of 400 students with the Force Concept Inventory has demonstrated considerable success. The average increase in score has been 35-45methods as defined by Hake. The methods and results will be discussed. Detailed analyses of the FCI results will look at success in teaching specific concepts and the effect of student preparation in mathematics and high school physics.
Sweeten, Sara E.; Ford, W. Mark
2016-01-01
Within the central Appalachia Coalfields, the aquatic impacts of large-scale land uses, such as surface mining, are of particular ecological concern. Identification and quantification of land use impacts to aquatic ecosystems are a necessary first step to aid in mitigation of negative consequences to biota. However, quantifying physical environmental quality such as stream and riparian habitat often can be quite difficult, particularly when there is time or fiscal limitations. As such, standard protocols such as the U.S. EPA’s Stream Habitat Rapid Bioassessment Protocol have been established to be cost- and time-effective. This protocol estimates ten different stream and riparian conditions on a scale of 0 to 20. Unfortunately, using estimations can be problematic because of large potential variation in the scoring depending on differences in training, experience, and opinion of the personnel doing the estimations. In order to help negate these biases and provide a simplified process, the U.S. Army Corps of Engineers (USACE) developed a functional assessment for streams that measures 11 stream and riparian variables along with watershed land use to calculate three different scores, a hydrology score, biogeochemical score, and habitat score. In our study, we examined the correlation of stream salamander presence and abundance to the three USACE scores. In the summer of 2013, we visited 70 sites in the southwest Virginia Coalfields multiple times to collect salamanders and quantify stream and riparian microhabitat parameters. Using occupancy and abundance analyses, we found strong relationships among three Desmognathus spp. and the USACE Habitat FCI score. Accordingly, the Habitat FCI score provides a reasonable assessment of physical instream and riparian conditions that may serve as a surrogate for understanding the community composition and integrity of aquatic salamander in the region.
Suzuki, Sachiko; Fukuda, Katsuharu; Irie, Motoko; Hata, Yoji
2007-01-01
Ferrichrysin (Fcy), which is produced by Aspergillus oryzae and is present in foods used for human consumption, belongs to a group of hydroxamate siderophore ferric iron chelators. Fcy (100 mg/mL) dissolves completely at both pH 2.0 and 7.0, being very stable at a wide range of pH, high temperatures and pressures, with little reactivity to dietary iron absorption inhibitors, phytic acid, tannic acid, and catechin. We studied the effect of Fcy in male Sprague-Dawley rats with iron-deficiency anemia, which were separated into three different dietary groups (n=5) and supplementing diets as follows: (i) ferric citrate, (ii) heme iron concentrate, and (iii) Fcy (35 mg Fe/kg diet) for three weeks. Fcy exhibited the same beneficial effect in improving iron deficiency anemia as ferric citrate, being significantly greater than the effect of heme iron. The iron concentration of liver in the Fcy group was 35% greater than that in the ferric citrate group. These findings indicate that Fcy could be an efficient oral iron supplement to prevent or treat iron deficiency.
Strong correlation in incremental full configuration interaction
NASA Astrophysics Data System (ADS)
Zimmerman, Paul M.
2017-06-01
Incremental Full Configuration Interaction (iFCI) reaches high accuracy electronic energies via a many-body expansion of the correlation energy. In this work, the Perfect Pairing (PP) ansatz replaces the Hartree-Fock reference of the original iFCI method. This substitution captures a large amount of correlation at zero-order, which allows iFCI to recover the remaining correlation energy with low-order increments. The resulting approach, PP-iFCI, is size consistent, size extensive, and systematically improvable with increasing order of incremental expansion. Tests on multiple single bond, multiple double bond, and triple bond dissociations of main group polyatomics using double and triple zeta basis sets demonstrate the power of the method for handling strong correlation. The smooth dissociation profiles that result from PP-iFCI show that FCI-quality ground state computations are now within reach for systems with up to about 10 heavy atoms.
Fetal Intervention in Right Outflow Tract Obstructive Disease: Selection of Candidates and Results
Gómez Montes, E.; Herraiz, I.; Mendoza, A.; Galindo, A.
2012-01-01
Objectives. To describe the process of selection of candidates for fetal cardiac intervention (FCI) in fetuses diagnosed with pulmonary atresia-critical stenosis with intact ventricular septum (PA/CS-IVS) and report our own experience with FCI for such disease. Methods. We searched our database for cases of PA/CS-IVS prenatally diagnosed in 2003–2012. Data of 38 fetuses were retrieved and analyzed. FCI were offered to 6 patients (2 refused). In the remaining it was not offered due to the presence of either favourable prognostic echocardiographic markers (n = 20) or poor prognostic indicators (n = 12). Results. The outcome of fetuses with PA/CS-IVS was accurately predicted with multiparametric scoring systems. Pulmonary valvuloplasty was technically successful in all 4 fetuses. The growth of the fetal right heart and hemodynamic parameters showed a Gaussian-like behaviour with an improvement in the first weeks and slow worsening as pregnancy advanced, probably indicating a restenosis. Conclusions. The most likely type of circulation after birth may be predicted in the second trimester of pregnancy by means of combining cardiac dimensions and functional parameters. Fetal pulmonary valvuloplasty in midgestation is technically feasible and in well-selected cases may improve right heart growth, fetal hemodynamics, and postnatal outcome. PMID:22928144
Financial Capacity Following Traumatic Brain Injury: A Six-Month Longitudinal Study
Dreer, Laura E.; DeVivo, Michael J.; Novack, Thomas A.; Marson, Daniel C.
2015-01-01
Objective To longitudinally investigate financial capacity (FC) following traumatic brain injury (TBI). Design Longitudinal study comparing FC in cognitively healthy adults and persons with moderate to severe TBI at time of acute hospitalization (Time 1) and at six months post injury (Time 2). Setting Inpatient brain injury rehabilitation unit. Participants Twenty healthy adult controls and 24 adult persons with moderate to severe TBI. Main Outcome Measures Participants were administered the Financial Capacity Instrument (FCI-9), a standardized instrument that measures performance on eighteen financial tasks, nine domains, and two global scores. Between and within group differences were examined for each FCI-9 domain and global scores. Using control group referenced cut scores, participants with TBI were also assigned an impairment rating (intact, marginal, or impaired) on each domain and global score. Results At Time 1, participants with TBI performed significantly below controls on the majority of financial variables tested. At Time 2, participants with TBI demonstrated within group improvement on both simple and complex financial skills, but continued to perform below adult controls on complex financial skills and both global scores. Group by time interactions were significant for five domains and both global scores. At Time 1, high percentages of participants with TBI were assigned either ‘marginal’ or ‘impaired’ ratings on the domains and global scores, with significant percentage increases of ‘intact’ ratings at Time 2. Conclusions Immediately following acute injury, persons with moderate to severe TBI show global impairment of FC. Findings indicate improvement of both simple and complex financial skills over a six month period, but continued impairment on more complex financial skills. Future studies should examine loss and recovery of FC following TBI over longer time periods and a wider range of injury severity. PMID:22369113
Using a psychometric lens to examine gender differences on the FCI
NASA Astrophysics Data System (ADS)
Lindell, Rebecca; Papak, Alexis; Stewart, John; Traxler, Adrienne
2017-01-01
Multiple research studies show that there appears to be an inherent difference between male and female students' performance on the Force Concept Inventory (FCI). Unlike these studies, we chose to create two different samples, one with only female students and the other with only male students, to reduce the effects of the gender-imbalance inherent in a single sample of all physics students. Using a psychometric lens, we evaluate the differences between the male and female students' performance on the FCI. We utilized classical test theory to flag 13 items on the FCI that were poorly functioning for female students. Notably, most of these items were not flagged when the dataset was aggregated across genders. In the next stage of the research, we utilized Item Response Theory (IRT) to discover if the remaining 17 items on the FCI are also poorly functioning for female students. By eliminating the poorly functioning items on the FCI, we further examined the gender difference of the Force Concept Inventory.
Clark, D G; Kapur, P; Geldmacher, D S; Brockington, J C; Harrell, L; DeRamus, T P; Blanton, P D; Lokken, K; Nicholas, A P; Marson, D C
2014-06-01
We constructed random forest classifiers employing either the traditional method of scoring semantic fluency word lists or new methods. These classifiers were then compared in terms of their ability to diagnose Alzheimer disease (AD) or to prognosticate among individuals along the continuum from cognitively normal (CN) through mild cognitive impairment (MCI) to AD. Semantic fluency lists from 44 cognitively normal elderly individuals, 80 MCI patients, and 41 AD patients were transcribed into electronic text files and scored by four methods: traditional raw scores, clustering and switching scores, "generalized" versions of clustering and switching, and a method based on independent components analysis (ICA). Random forest classifiers based on raw scores were compared to "augmented" classifiers that incorporated newer scoring methods. Outcome variables included AD diagnosis at baseline, MCI conversion, increase in Clinical Dementia Rating-Sum of Boxes (CDR-SOB) score, or decrease in Financial Capacity Instrument (FCI) score. Receiver operating characteristic (ROC) curves were constructed for each classifier and the area under the curve (AUC) was calculated. We compared AUC between raw and augmented classifiers using Delong's test and assessed validity and reliability of the augmented classifier. Augmented classifiers outperformed classifiers based on raw scores for the outcome measures AD diagnosis (AUC .97 vs. .95), MCI conversion (AUC .91 vs. .77), CDR-SOB increase (AUC .90 vs. .79), and FCI decrease (AUC .89 vs. .72). Measures of validity and stability over time support the use of the method. Latent information in semantic fluency word lists is useful for predicting cognitive and functional decline among elderly individuals at increased risk for developing AD. Modern machine learning methods may incorporate latent information to enhance the diagnostic value of semantic fluency raw scores. These methods could yield information valuable for patient care and clinical trial design with a relatively small investment of time and money. Published by Elsevier Ltd.
Finding Frequent Closed Itemsets in Sliding Window in Linear Time
NASA Astrophysics Data System (ADS)
Chen, Junbo; Zhou, Bo; Chen, Lu; Wang, Xinyu; Ding, Yiqun
One of the most well-studied problems in data mining is computing the collection of frequent itemsets in large transactional databases. Since the introduction of the famous Apriori algorithm [14], many others have been proposed to find the frequent itemsets. Among such algorithms, the approach of mining closed itemsets has raised much interest in data mining community. The algorithms taking this approach include TITANIC [8], CLOSET+[6], DCI-Closed [4], FCI-Stream [3], GC-Tree [15], TGC-Tree [16] etc. Among these algorithms, FCI-Stream, GC-Tree and TGC-Tree are online algorithms work under sliding window environments. By the performance evaluation in [16], GC-Tree [15] is the fastest one. In this paper, an improved algorithm based on GC-Tree is proposed, the computational complexity of which is proved to be a linear combination of the average transaction size and the average closed itemset size. The algorithm is based on the essential theorem presented in Sect. 4.2. Empirically, the new algorithm is several orders of magnitude faster than the state of art algorithm, GC-Tree.
Kliemann, Dimas A; Wolff, Fernando H; Tovo, Cristiane V; Alencastro, Paulo R; Ikeda, Maria L R; Brandão, Ajácio B M; Barcellos, Nêmora; Fuchs, Sandra C
2016-01-01
The liver biopsy has been considered the gold standard for the diagnosis and quantification of fibrosis. However, this method presents limitations. In addition, the non-invasive evaluation of liver fibrosis is a challenge. The aim of this study was to validate the fibrosis cirrhosis index (FCI) index in a cohort of human immunodeficiency virus (HIV)/hepatitis C virus (HCV) coinfected patients, and compare to AST/ALT ratio (AAR), AST to platelet ratio index (APRI) and FIB-4 scores, as a tool for the assessment of liver fibrosis in coinfected patients. Retrospective cross sectional study including 92 HIV-HCV coinfected patients evaluated in two reference centers for HIV treatment in the Public Health System in Southern Brazil. Patients who underwent liver biopsy for any indication and had concomitant laboratory data in the 3 months prior to liver biopsy, to allow the calculation of studied noninvasive markers (AAR, APRI, FIB-4 and FCI) were included. APRI < 0.5 presents the higher specificity to detect no or minimal fibrosis, whereas APRI > 1.5 presents the best negative predictive value and FCI > 1.25 the best specificity to detect significant fibrosis. The values of noninvasive markers for each Metavir fibrosis stage showed statistically significant differences only for APRI. In conclusion, until better noninvasive markers for liver fibrosis are developed and validated for HIV-HCV coinfected patients, noninvasive serum markers should be used carefully in this population.
Gender Fairness within the Force Concept Inventory
ERIC Educational Resources Information Center
Traxler, Adrienne; Henderson, Rachel; Stewart, John; Stewart, Gay; Papak, Alexis; Lindell, Rebecca
2018-01-01
Research on the test structure of the Force Concept Inventory (FCI) has largely ignored gender, and research on FCI gender effects (often reported as "gender gaps") has seldom interrogated the structure of the test. These rarely crossed streams of research leave open the possibility that the FCI may not be structurally valid across…
Palmer, Cameron S; Cameron, Peter A; Gabbe, Belinda J
2017-03-01
The measurement of functional outcomes following severe trauma has been widely recognised as a priority for countries with developed trauma systems. In this respect, the Functional Capacity Index (FCI), a multi-attribute index which has been incorporated into the most recent Abbreviated Injury Scale (AIS) dictionary, is potentially attractive as it offers 12-month functional outcome predictions for patients captured by existing AIS-coded datasets. This review paper outlines the development, construction and validation of the predictive form of the FCI (termed the pFCI), the modifications made which produced the currently available 'revised' pFCI, and the extent to which the revised pFCI has been validated and used. The original pFCI performed poorly in validation studies. The revised pFCI does not address many of the identified limitations of the original version, and despite the ready availability of a truncated version in the AIS dictionary, it has only been used in a handful of studies since its introduction several years ago. Additionally, there is little evidence for its validity. It is suggested that the pFCI should be better validated, whether in the narrow population group of young, healthy individuals for which it was developed, or in the wider population of severely injured patients. Methods for accounting for the presence of multiple injures (of which two have currently been used) should also be evaluated. Many factors other than anatomical injury are known to affect functional outcomes following trauma. However, it is intuitive that any model which attempts to predict the ongoing morbidity burden in a trauma population should consider the effects of the injuries sustained. Although the revised pFCI potentially offers a low-cost assessment of likely functional limitations resulting from anatomical injury, it must be more rigorously evaluated before more comprehensive predictive tools can be developed from it. Copyright © 2017 Elsevier Ltd. All rights reserved.
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Examining the effects of testwiseness in conceptual physics evaluations
NASA Astrophysics Data System (ADS)
DeVore, Seth; Stewart, John; Stewart, Gay
2016-12-01
Testwiseness is defined as the set of cognitive strategies used by a student that is intended to improve his or her score on a test regardless of the test's subject matter. Questions with elements that may be affected by testwiseness are common in physics assessments, even in those which have been extensively validated and widely used as evaluation tools in physics education research. The potential effect of several elements of testwiseness were analyzed for questions in the Force Concept Inventory (FCI) and Conceptual Survey on Electricity and Magnetism that contain distractors that are predicted to be influenced by testwiseness. This analysis was performed using data sets collected between fall 2001 and spring 2014 at one midwestern U.S. university (including over 9500 students) and between Spring 2011 and Spring 2015 at a second eastern U.S. university (including over 2500 students). Student avoidance of "none of the above" or "zero" distractors was statistically significant. The effect of the position of a distractor on its likelihood to be selected was also significant. The effects of several potential positive and negative testwiseness effects on student scores were also examined by developing two modified versions of the FCI designed to include additional elements related to testwiseness; testwiseness produced little effect post-instruction in student performance on the modified instruments.
Rebello, Candida J; Nikonova, Elena V; Zhou, Sharon; Aronne, Louis J; Fujioka, Ken; Garvey, W Timothy; Smith, Steven R; Coulter, Ann A; Greenway, Frank L
2018-02-01
This study evaluated the effect of lorcaserin 10 mg twice daily (LOR BID), or with phentermine 15 mg once daily (LOR BID + PHEN QD) and 15 mg twice daily (LOR BID + PHEN BID), in conjunction with energy restriction on food cravings. Two hundred and thirty-five patients without diabetes but with obesity or overweight and ≥ 1 comorbidity received LOR BID, LOR BID + PHEN QD, or LOR BID + PHEN BID for 12 weeks in a randomized double-blind study. The Food Craving Inventory (FCI) and the Control of Eating Questionnaire (COEQ) were administered over 12 weeks. The FCI total score and the subscale scores reduced from baseline in all groups. The least squares means (95% confidence intervals) for the total scores were -0.65 (-0.75 to -0.55), -0.75 (-0.84 to -0.65), and -0.84 (-0.95 to -0.74) in the LOR BID, LOR BID + PHEN QD, and LOR BID + PHEN BID groups, respectively. Cravings assessed by COEQ reduced from baseline in all groups. In general, the combination treatments were more effective than lorcaserin alone. At week 12, except for fruit juice and dairy products, general and specific cravings reduced in LOR BID + PHEN BID compared with LOR BID (P < 0.05). Lorcaserin in combination with phentermine improves control of food cravings during short-term energy restriction. © 2018 The Obesity Society.
ERIC Educational Resources Information Center
Al rababah, Ibraheem Hasan; Rababah, Luqman
2017-01-01
Although Flipped Classroom Instruction (FCI) is not a new concept, the practice is relatively new in the Arab region, especially, in Jordan, where the face-to face approach is still widely used. This qualitative study examined the attitudes of Arabic language lecturers at three Jordanian public universities towards utilizing FCI in their…
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2012-04-02
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Conceptual physics differences by pedagogy and gender: Questioning the deficit model
NASA Astrophysics Data System (ADS)
Majors, Twanelle Deann Walker
The differences in physics performance between males and females have been studied extensively (Blue & Heller, 2003; Coletta, 2015; Madsen, McKagan, & Sayre 2013; McCullough, 2002, 2004, 2011; Pollock, Finkelstein, & Kost, 2007; Zohar & Sela, 2003). The purpose of this study was to look at the ways teaching methods and assessment choices have fabricated a gender gap. Deficit ways of thinking have further marginalized women by renegotiating prior acts of power that initiated and perpetuated marginalization. Outside of the deficit model, the blame for the underperformance of females has been attributed to discourses of power as well as less-than-critical ways of evaluating learning and schooling. Students in introductory algebra-based physics courses from 2008-2014 at Tennessee Technological University were self-enrolled in PHYS2010 sections that were taught using either a traditional or constructivist, interactive-engagement Learner-centered Environment for Algebra-based Physics (LEAP) pedagogy. Propensity scoring on all feasible and relevant independent variables was used to adjust for the probability of students choosing either LEAP or traditional sections. The Force Concept Inventory (FCI) and Gender Force Concept Inventory (GFCI) were used as the measures to gauge students' performance on physics concepts. The results showed that there were no differences in the FCI or GFCI performance of males and females. Results also showed that when accounting for pretest performance and the likelihood of choosing a LEAP section, LEAP pedagogy accounted for roughly 30% of performance differences. Not only was this true on the average, it was true for both genders. This meant that the main effect of LEAP pedagogy was even stronger and more generalizable. Gender did not moderate pedagogy, indicating that a pedagogy gap focus was more appropriate for evaluating physics learners.
Apolzan, John W.; Myers, Candice A.; Champagne, Catherine M.; Beyl, Robbie A.; Raynor, Hollie A.; Anton, Stephen A.; Williamson, Donald A.; Sacks, Frank M.; Bray, George A.; Martin, Corby K.
2017-01-01
Objective Food cravings are thought to be the result of conditioning or pairing hunger with consumption of certain foods. Methods In a two-year weight loss trial, subjects were randomized to one of four diets that varied in macronutrient content. The Food Craving Inventory (FCI) was used to measure cravings at baseline, 6, and 24 months. Also, food intake was measured at those time points. To measure free-living consumption of food items measured in the FCI, items on the FCI were matched to the foods consumed from the food intake assessments. Secondarily, we analyzed the amount of food consumed on food intake assessments from foods on the FCI. Results 367 subjects who were overweight and obese were included. There was an association between change from baseline FCI item consumption and change in cravings at months 6 (p<0.001) and 24 (p<0.05). There was no association between change from baseline amount of energy consumed per FCI item and change in cravings. Conclusions Altering frequency of consuming craved foods is positively associated with cravings; however, changing the amount of foods consumed does not appear to alter cravings. These results support the conditioning model of food cravings and provide guidance on how to reduce food cravings. PMID:28618170
DOE Office of Scientific and Technical Information (OSTI.GOV)
Lan, Keng-Hsueh; Shih, Yi-Sheng; Chang, Cheng Allen
Highlights: Black-Right-Pointing-Pointer EGFR-expressing epithelial cancers account for significant portion of cancer deaths. Black-Right-Pointing-Pointer EGF-EGFR signaling pathway is validated as an important anticancer drug target. Black-Right-Pointing-Pointer EGF and Fcy fusion protein (Fcy-hEGF) can bind to EGFR and convert 5-FC to 5-FU. Black-Right-Pointing-Pointer Fcy-hEGF combined with 5-FC preferentially inhibits EGFR-expressing cells viability. -- Abstract: Human epithelial cancers account for approximately 50% of all cancer deaths. This type of cancer is characterized by excessive activation and expression of the epidermal growth factor receptor (EGFR). The EGFR pathway is critical for cancer cell proliferation, survival, metastasis and angiogenesis. The EGF-EGFR signaling pathway has beenmore » validated as an important anticancer drug target. Increasing numbers of targeted therapies against this pathway have been either approved or are currently under development. Here, we adopted a prodrug system that uses 5-fluorocytosine (5-FC) and human EGF (hEGF) fused with yeast cytosine deaminase (Fcy) to target EGFR-overexpressing cancer cells and to convert 5-FC to a significantly more toxic chemotherapeutic, 5-fluorouracil (5-FU). We cloned and purified the Fcy-hEGF fusion protein from Pichia pastoris yeast. This fusion protein specifically binds to EGFR with a similar affinity as hEGF, approximately 10 nM. Fcy-hEGF binds tightly to A431 and MDA-MB-468 cells, which overexpress EGFR, but it binds with a lower affinity to MDA-MB-231 and MCF-7, which express lower levels of EGFR. Similarly, the viability of EGFR-expressing cells was suppressed by Fcy-hEGF in the presence of increasing concentrations of 5-FC, and the IC{sub 50} values for A431 and MDA-MB-468 were approximately 10-fold lower than those of MDA-MB-231 and MCF-7. This novel prodrug system, Fcy-hEGF/5-FC, might represent a promising addition to the available class of inhibitors that specifically target EGFR-expressing cancers.« less
Effect of Modeling Instruction on Concept Knowledge Among Ninth Grade Physics Students
NASA Astrophysics Data System (ADS)
Ditmore, Devin Alan
A basic knowledge of physics concepts is the gateway to success through high-paying careers in science, technology, engineering, and mathematics (STEM). Many students show little understanding of concepts following traditional physics instruction. As an alternative to current lecture-based approaches for high school physics instruction, Piaget's theory of cognitive development supports using real scientific experiences to lead learners from concrete to formal understanding of complex concepts. Modeling instruction (MI) is a pedagogy that guides learners through genuine scientific experiences. This project study analyzed the effects of MI on 9th grade physics students' gains on the test measuring mastery of physics concepts, Force Concept Inventory (FCI). A quasi-experimental design was used to compare the FCI scores of a traditional lecture-taught control group to a treatment group taught using MI. A t test t(-.201) = 180.26, p = .841 comparing the groups and an analysis of variance F(2,181) = 5.20 comparing female to male students indicated MI had no significant positive effect on students. A partial eta squared of the effect size showed that 5.4% of the variance in FCI gains was accounted for by gender, favoring female participants for both groups. The significant relationship between content and gender bears further inquiry. A lesson plan guide was designed to help teachers use computer simulation technology within the MI curriculum. The project promotes positive social change by exploring further ways to help adolescents experience success in physics at the beginning of high school, leading to future success in all STEM areas.
Neurocognitive predictors of financial capacity in traumatic brain injury.
Martin, Roy C; Triebel, Kristen; Dreer, Laura E; Novack, Thomas A; Turner, Crystal; Marson, Daniel C
2012-01-01
To develop cognitive models of financial capacity (FC) in patients with traumatic brain injury (TBI). Longitudinal design. Inpatient brain injury rehabilitation unit. Twenty healthy controls, and 24 adults with moderate-to-severe TBI were assessed at baseline (30 days postinjury) and 6 months postinjury. The FC instrument (FCI) and a neuropsychological test battery. Univariate correlation and multiple regression procedures were employed to develop cognitive models of FCI performance in the TBI group, at baseline and 6-month time follow-up. Three cognitive predictor models of FC were developed. At baseline, measures of mental arithmetic/working memory and immediate verbal memory predicted baseline FCI performance (R = 0.72). At 6-month follow-up, measures of executive function and mental arithmetic/working memory predicted 6-month FCI performance (R = 0.79), and a third model found that these 2 measures at baseline predicted 6-month FCI performance (R = 0.71). Multiple cognitive functions are associated with initial impairment and partial recovery of FC in moderate-to-severe TBI patients. In particular, arithmetic, working memory, and executive function skills appear critical to recovery of FC in TBI. The study results represent an initial step toward developing a neurocognitive model of FC in patients with TBI.
National Historic Preservation Act (NHPA) Section 106 Process: Florence Copper, Inc. (FCI)
Collection of National Historic Preservation Act (NHPA) documents relating to Public Notice of Intent to Issue a Class III Underground Injection Control Area Permit for Florence Copper, Inc. (FCI) - Florence, AZ (closed)
Core-core and core-valence correlation
NASA Technical Reports Server (NTRS)
Bauschlicher, Charles W., Jr.; Langhoff, Stephen R.; Taylor, Peter R.
1988-01-01
The effect of (1s) core correlation on properties and energy separations was analyzed using full configuration-interaction (FCI) calculations. The Be 1 S - 1 P, the C 3 P - 5 S and CH+ 1 Sigma + or - 1 Pi separations, and CH+ spectroscopic constants, dipole moment and 1 Sigma + - 1 Pi transition dipole moment were studied. The results of the FCI calculations are compared to those obtained using approximate methods. In addition, the generation of atomic natural orbital (ANO) basis sets, as a method for contracting a primitive basis set for both valence and core correlation, is discussed. When both core-core and core-valence correlation are included in the calculation, no suitable truncated CI approach consistently reproduces the FCI, and contraction of the basis set is very difficult. If the (nearly constant) core-core correlation is eliminated, and only the core-valence correlation is included, CASSCF/MRCI approached reproduce the FCI results and basis set contraction is significantly easier.
Expanding the FCI to Eevaluate Conceptual Mastery of Energy, Momentum, and Rotational Dynamics
NASA Astrophysics Data System (ADS)
Chediak, Alex; Hay, Katrina
2010-03-01
Normalized gain on the Force Concept Inventory (FCI) has deservedly become a widely accepted assessment tool to evaluate conceptual mastery in a high school, college, or university-level mechanics course. Left out of this assessment, however, are important physics concepts typically presented in the same course. Conservation of energy and momentum as well as rotational motion receive scant (if any) coverage on the FCI (or, for that matter, the Mechanics Baseline Test). Yet these concepts are foundational for popular majors such as mechanical engineering, where high failure rates are often a concern. A revised assessment tool is presented, one that incorporates the strengths of the FCI (and preserves the straightforward multiple choice format), but assesses these other mechanics-related concepts. Ten additional questions are included, inspired in part by material from the Physics Education Group at the University of Washington and in part by the authors' own experiences with common student misperceptions. The questions are given as pre- and post tests at the authors' institutions, California Baptist University and Pacific Lutheran University, in both calculus-based and algebra-based mechanics courses, exploring breadth of applicability for our findings. We present normalized gain data for the traditional thirty FCI questions and for our ten additional questions.
Subirá, D; Górgolas, M; Castañón, S; Serrano, C; Román, A; Rivas, F; Tomás, J F
2005-01-01
Neurological disorders are common in HIV-infected patients. Central nervous system (CNS) lymphoma should always be considered because it is an important cause of morbidity and mortality. To investigate the clinical utility of flow cytometry immunophenotyping (FCI) in diagnosing or discarding leptomeningeal involvement in HIV-infected patients and to compare its sensitivity with that of conventional cytological methods. Fifty-six cerebrospinal fluid (CSF) samples from 29 HIV-infected patients were independently evaluated by flow cytometry and cytology. The description of an aberrant immunophenotype was the criterion used to define the malignant nature of any CSF cell population. FCI and cytology gave concordant results for 48 of the 56 CSF samples studied: 37 were negative for malignancy and 11 had evidence of CNS lymphoma. Discordant results were obtained for eight CSF samples, and the accuracy of the FCI findings could be demonstrated for four CSF samples described as positive for malignancy according to the FCI criteria. A high level of agreement was found between the results obtained using the two methods, but FCI gave at least 25% higher sensitivity than conventional cytomorphological methods for the detection of malignant cells. This advantage suggests that, in case of negative flow cytometry results, disorders other than non-Hodgkin's lymphoma should be strongly considered.
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2013-08-14
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Modeling the adiabatic connection in H2.
Peach, Michael J G; Teale, Andrew M; Tozer, David J
2007-06-28
Full configuration interaction (FCI) data are used to quantify the accuracy of approximate adiabatic connection (AC) forms in describing the ground state potential energy curve of H2, within spin-restricted density functional theory (DFT). For each internuclear separation R, accurate properties of the AC are determined from large basis set FCI calculations. The parameters in the approximate AC form are then determined so as to reproduce these FCI values exactly, yielding an exchange-correlation energy expressed entirely in terms of FCI-derived quantities. This is combined with other FCI-derived energy components to give the total electronic energy; comparison with the FCI energy quantifies the accuracy of the AC form. Initial calculations focus on a [1/1]-Padé-based form. The potential energy curve determined using the procedure is a notable improvement over those from existing DFT functionals. The accuracy near equilibrium is quantified by calculating the bond length and vibrational wave numbers; errors in the latter are below 0.5%. The molecule dissociates correctly, which can be traced to the use of virtual orbital eigenvalues in the slope in the noninteracting limit, capturing static correlation. At intermediate R, the potential energy curve exhibits an unphysical barrier, similar to that noted previously using the random phase approximation. Alternative forms of the AC are also considered, paying attention to size extensivity and the behavior in the strong-interaction limit; none provide an accurate potential energy curve for all R, although good accuracy can be achieved near equilibrium. The study demonstrates how data from correlated ab initio calculations can provide valuable information about AC forms and highlight areas where further theoretical progress is required.
NASA Astrophysics Data System (ADS)
Goertzen, Renee Michelle; Brewe, Eric; Kramer, Laird H.; Wells, Leanne; Jones, David
2011-12-01
Florida International University has undergone a reform in the introductory physics classes by focusing on the laboratory component of these classes. We present results from the secondary implementation of two research-based instructional strategies: the implementation of the Learning Assistant model as developed by the University of Colorado at Boulder and the Open Source Tutorial curriculum developed at the University of Maryland, College Park. We examine the results of the Force Concept Inventory (FCI) for introductory students over five years (n=872) and find that the mean raw gain of students in transformed lab sections was 0.243, while the mean raw gain of the traditional labs was 0.159, with a Cohen’s d effect size of 0.59. Average raw gains on the FCI were 0.243 for Hispanic students and 0.213 for women in the transformed labs, indicating that these reforms are not widening the gaps between underrepresented student groups and majority groups. Our results illustrate how research-based instructional strategies can be successfully implemented in a physics department with minimal department engagement and in a sustainable manner.
Information-theoretic metric as a tool to investigate nonclassical correlations
NASA Astrophysics Data System (ADS)
Rudolph, Alexander L.; Lamine, Brahim; Joyce, Michael; Vignolles, Hélène; Consiglio, David
2014-06-01
We report on a project to introduce interactive learning strategies (ILS) to physics classes at the Université Pierre et Marie Curie, one of the leading science universities in France. In Spring 2012, instructors in two large introductory classes, first-year, second-semester mechanics, and second-year introductory electricity and magnetism, enrolling approximately 500 and 250 students, respectively, introduced ILS into some, but not all, of the sections of each class. The specific ILS utilized were think-pair-share questions and Peer Instruction in the main lecture classrooms, and University of Washington Tutorials for Introductory Physics in recitation sections. Pre- and postinstruction assessments [Force Concept Inventory (FCI) and Conceptual Survey of Electricity and Magnetism (CSEM), respectively] were given, along with a series of demographic questions. Since not all lecture or recitation sections in these classes used ILS, we were able to compare the results of the FCI and CSEM between interactive and noninteractive classes taught simultaneously with the same curriculum. We also analyzed final exam results, as well as the results of student and instructor attitude surveys between classes. In our analysis, we argue that multiple linear regression modeling is superior to other common analysis tools, including normalized gain. Our results show that ILS are effective at improving student learning by all measures used: research-validated concept inventories and final exam scores, on both conceptual and traditional problem-solving questions. Multiple linear regression analysis reveals that interactivity in the classroom is a significant predictor of student learning, showing a similar or stronger relationship with student learning than such ascribed characteristics as parents’ education, and achieved characteristics such as grade point average and hours studied per week. Analysis of student and instructor attitudes shows that both groups believe that ILS improve student learning in the physics classroom and increase student engagement and motivation. All of the instructors who used ILS in this study plan to continue their use.
NASA Astrophysics Data System (ADS)
Fulmer, Gavin W.; Liang, Ling L.; Liu, Xiufeng
2014-11-01
This exploratory study applied a proposed force and motion learning progression (LP) to high-school and university students and to content involving both one- and two-dimensional force and motion situations. The Force Concept Inventory (FCI) was adapted, based on a previous content analysis and coding of the questions in the FCI in terms of the level descriptors of the LP. Using a Rasch measurement model and latent class analysis, students' responses were tested for fit with the proposed LP. Results indicated that the recoded FCI response options are generally consistent with a progression of difficulties as proposed in the LP, and that the students could be organized into different groups with progressively different levels of ability. However, reliability for the ability estimates was only moderate and response options at lower levels of the LP were not well differentiated. Implications for the assessments with LPs and revisions for both the FCI and the force and motion LP are also discussed.
NASA Astrophysics Data System (ADS)
Bani-Salameh, Hisham N.
2017-01-01
We started this work with the goal of detecting misconceptions held by our students about force and motion. A total of 341 students participated in this study by taking the force concept inventory (FCI) test both before and after receiving instructions about force or motion. The data from this study were analysed using different statistical techniques with results from frequencies and the dominant incorrect answer reported in this paper. All misconceptions reported in the original paper of the designers of the FCI test (Hestenes et al 1992 Phys. Teach. 30 141-58) were examined and the results are reported. Only pre test results are reported in this paper leaving post data for future work. We used the modified version of the FCI containing 30 questions and therefore used the revised list of misconceptions. Problems with impetus and active force are among the most dominant ones found with the full list reported in this paper.
NASA Astrophysics Data System (ADS)
Motruk, Johannes; Pollmann, Frank
2017-10-01
We investigate the fate of hardcore bosons in a Harper-Hofstadter model which was experimentally realized by Aidelsburger et al. [Nat. Phys. 11, 162 (2015), 10.1038/nphys3171] at half-filling of the lowest band. We discuss the stability of an emergent fractional Chern insulator (FCI) state in a finite region of the phase diagram that is separated from a superfluid state by a first-order transition when tuning the band topology following the protocol used in the experiment. Since crossing a first-order transition is unfavorable for adiabatically preparing the FCI state, we extend the model to stabilize a featureless insulating state. The transition between this phase and the topological state proves to be continuous, providing a path in parameter space along which an FCI state could be adiabatically prepared. To further corroborate this statement, we perform time-dependent DMRG calculations which demonstrate that the FCI state may indeed be reached by adiabatically tuning a simple product state.
Personality types and student performance in an introductory physics course
NASA Astrophysics Data System (ADS)
Harlow, Jason J. B.; Harrison, David M.; Justason, Michael; Meyertholen, Andrew; Wilson, Brian
2017-12-01
We measured the personality type of the students in a large introductory physics course of mostly life science students using the True Colors instrument. We found large correlations of personality type with performance on the precourse Force Concept Inventory (FCI), both term tests, the postcourse FCI, and the final examination. We also saw correlations with the normalized gain on the FCI. The personality profile of the students in this course is very different from the profile of the physics faculty and graduate students, and also very different from the profile of students taking the introductory physics course intended for physics majors and specialists.
The Facilities Condition Index: A Useful Tool for Capital Asset Planning.
ERIC Educational Resources Information Center
Briselden, Don J.; Cain, David A.
2001-01-01
Describes the development and history of the Facilities Condition Index (FCI) and its use in rating a facility's condition and measuring the amount of deferred maintenance needed. Also discusses the FCI's position within the Strategic Assessment Model and its usefulness to facilities managers. (GR)
Bioliteracy and Teaching Efficacy: What Biologists Can Learn from Physicists
ERIC Educational Resources Information Center
Klymkowsky, Michael W.; Garvin-Doxas, Kathy; Zeilik, Michael
2003-01-01
The introduction of the Force Concept Inventory (FCI) by David Hestenes and colleagues in 1992 produced a remarkable impact within the community of physics teachers. An instrument to measure student comprehension of the Newtonian concept of force, the FCI demonstrates that active learning leads to far superior student conceptual learning than…
Personality Types and Student Performance in an Introductory Physics Course
ERIC Educational Resources Information Center
Harlow, Jason J. B.; Harrison, David M.; Justason, Michael; Meyertholen, Andrew; Wilson, Brian
2017-01-01
We measured the personality type of the students in a large introductory physics course of mostly life science students using the True Colors instrument. We found large correlations of personality type with performance on the precourse Force Concept Inventory (FCI), both term tests, the postcourse FCI, and the final examination. We also saw…
Bommannan, K; Sachdeva, M U S; Gupta, M; Bose, P; Kumar, N; Sharma, P; Naseem, S; Ahluwalia, J; Das, R; Varma, N
2016-10-01
A good bone marrow (BM) sample is essential in evaluating many hematologic disorders. An unsuccessful BM aspiration (BMA) procedure precludes a successful flow cytometric immunophenotyping (FCI) in most hematologic malignancies. Apart from FCI, most ancillary diagnostic techniques in hematology are less informative. We describe the feasibility of FCI in vortex-dislodged cell preparation obtained from unfixed trephine biopsy (TB) specimens. In pancytopenic patients and dry tap cases, routine diagnostic BMA and TB samples were complemented by additional trephine biopsies. These supplementary cores were immediately transferred into sterile tubes filled with phosphate-buffered saline, vortexed, and centrifuged. The cell pellet obtained was used for flow cytometric immunophenotyping. Of 7955 BMAs performed in 42 months, 34 dry tap cases were eligible for the study. Vortexing rendered a cell pellet in 94% of the cases (32 of 34), and FCI rendered a rapid diagnosis in 100% of the cases (32 of 32) where cell pellets were available. We describe an efficient procedure which could be effectively utilized in resource-limited centers and reduce the frequency of repeat BMA procedures. © 2016 John Wiley & Sons Ltd.
Novel method for comparing coverage by future methods of ballistic facial protection.
Breeze, J; Allanson-Bailey, L C; Hepper, A E; Lewis, E A
2015-01-01
The wearing of eye protection by United Kingdom soldiers in Afghanistan has reduced the morbidity caused by explosive fragments. However, the remaining face remains uncovered because there is a lack of evidence to substantiate the procurement of methods to protect it. Using a new computerised tool we entered details of the entry sites of surface wounds caused by explosive fragments in all UK soldiers who were injured in the face between 1 January 2010 and 31 December 2011. We compared clinical and predicted immediate and long term outcomes (as defined by the Abbreviated Injury Score (AIS) and the Functional Capacity Index (pFCI), respectively). We also used the tool to predict how additional protection in the form of a visor and mandible guard would affect outcomes. A soldier wearing eye protection was 9 times (1.03/0.12) less likely to sustain an eye injury than one without. However, 38% of soldiers in this series were not wearing eye protection at the time of injury. There was no significant difference between the AIS and pFCI scores predicted by the tool and those found clinically. There is limited evidence to support the use of a mandible guard; its greatest asset is better protection of the nose, but a visor would be expected to reduce long-term morbidity more than eye protection alone, and we recommend future trials to assess its acceptability to users. We think that use of this novel tool can help in the selection of future methods of ballistic facial protection. Copyright © 2014. Published by Elsevier Ltd.
NASA Astrophysics Data System (ADS)
Dietz, Laura
The Science Teaching Advancement through Modeling Physical Science (STAMPS) professional development workshop was evaluated for effectiveness in improving teachers' and students' content knowledge. Previous research has shown modeling to be an effective method of instruction for improving student and teacher content knowledge, evidenced by assessment scores. Data includes teacher scores on the Force Concept Inventory (FCI; Hestenes, Wells, & Swackhamer, 1992) and the Chemistry Concept Inventory (CCI; Jenkins, Birk, Bauer, Krause, & Pavelich, 2004), as well as student scores on a physics and chemistry assessment. Quantitative data is supported by teacher responses to a post workshop survey and classroom observations. Evaluation of the data shows that the STAMPS professional development workshop was successful in improving both student and teacher content knowledge. Conclusions and suggestions for future study are also included.
Examining Evolving Performance on the Force Concept Inventory Using Factor Analysis
ERIC Educational Resources Information Center
Semak, M. R.; Dietz, R. D.; Pearson, R. H.; Willis, C. W
2017-01-01
The application of factor analysis to the "Force Concept Inventory" (FCI) has proven to be problematic. Some studies have suggested that factor analysis of test results serves as a helpful tool in assessing the recognition of Newtonian concepts by students. Other work has produced at best ambiguous results. For the FCI administered as a…
Exploratory Factor Analysis of a Force Concept Inventory Data Set
ERIC Educational Resources Information Center
Scott, Terry F.; Schumayer, Daniel; Gray, Andrew R.
2012-01-01
We perform a factor analysis on a "Force Concept Inventory" (FCI) data set collected from 2109 respondents. We address two questions: the appearance of conceptual coherence in student responses to the FCI and some consequences of this factor analysis on the teaching of Newtonian mechanics. We will highlight the apparent conflation of Newton's…
Simpson, Guy R; Han, Ziqun; Liu, Binlei; Wang, Yibing; Campbell, Gregor; Coffin, Robert S
2006-05-01
We have previously developed an oncolytic herpes simplex virus-1 based on a clinical virus isolate, which was deleted for ICP34.5 to provide tumor selected replication and ICP47 to increase antigen presentation as well as tumor selective virus replication. A phase I/II clinical trial using a version of this virus expressing granulocyte macrophage colony-stimulating factor has shown promising results. The work reported here aimed to develop a version of this virus in which local tumor control was further increased through the combined expression of a highly potent prodrug activating gene [yeast cytosine deaminase/uracil phospho-ribosyltransferase fusion (Fcy::Fur)] and the fusogenic glycoprotein from gibbon ape leukemia virus (GALV), which it was hoped would aid the spread of the activated prodrug through the tumor. Viruses expressing the two genes individually or in combination were constructed and tested, showing (a) GALV and/or Fcy::Fur expression did not affect virus growth; (b) GALV expression causes cell fusion and increases the tumor cell killing at least 30-fold in vitro and tumor shrinkage 5- to 10-fold in vivo; (c) additional expression of Fcy::Fur combined with 5-fluorocytosine administration improves tumor shrinkage further. These results indicate, therefore, that the combined expression of the GALV protein and Fcy::Fur provides a highly potent oncolytic virus with improved capabilities for local tumor control. It is intended to enter the GALV/Fcy::Fur expressing virus into clinical development for the treatment of tumor types, such as pancreatic or lung cancer, where local control would be anticipated to be clinically advantageous.
Betancourt-Lineares, Armandor; Irigoyen-Camacho, María Esther; Mejía-González, Adriana; Zepeda-Zapeda, Marco; Sánchez-Pérez, Leonor
2013-01-01
To identify the prevalence and severity of dental fluorosis in communities located in 28 states of Mexico. The National Dental Caries Survey 2001 (NDCS2001) data base was analyzed. The information of 26,893 students, ages 12 and 15 years old, of 27 states and the Federal District was examined. Dean's dental fluorosis index was applied by standardized examiners. The fluorosis prevalence and the Community Fluorosis Index (FCI) were calculated. The fluorosis prevalence was 27.9% (95% CI 24.4, 28.5). A statistical significance difference in the fluorosis prevalence was observed among the states studied (p < 0.0001). The lowest prevalence was detected in Morelos (3.2%) and the highest in Durango (88.8%). In 18 (64.3%) of the states included more than 90% of the participants showed very mild or lower levels of the dental fluorosis index. A low level of the FCI was found in the localities belonging to 19 (67.9%) of the states studied (FCI < 0.4). The lowest FCI was found in Colima, Yucatán and Morelos. The highest FCI were found in Durango, Zacatecas, Aguascalientes and San Luis Potosí (1 ≤ ICF). This information indicates that in these states dental fluorosis is a public health problem. Two-thirds of the states had localities with low prevalence of dental fluorosis; however, approximately, one-third of the states investigated the fluorosis levels showed the need of a reduction in fluoride exposure among the young population.
ERIC Educational Resources Information Center
Maries, Alexandru; Singh, Chandralekha
2016-01-01
The Force Concept Inventory (FCI) has been widely used to assess student understanding of introductory mechanics concepts by a variety of educators and physics education researchers. One reason for this extensive use is that many of the items on the FCI have strong distractor choices which correspond to students' alternate conceptions in…
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2013-08-14
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Eye-tracking of visual attention in web-based assessment using the Force Concept Inventory
NASA Astrophysics Data System (ADS)
Han, Jing; Chen, Li; Fu, Zhao; Fritchman, Joseph; Bao, Lei
2017-07-01
This study used eye-tracking technology to investigate students’ visual attention while taking the Force Concept Inventory (FCI) in a web-based interface. Eighty nine university students were randomly selected into a pre-test group and a post-test group. Students took the 30-question FCI on a computer equipped with an eye-tracker. There were seven weeks of instruction between the pre- and post-test data collection. Students’ performance on the FCI improved significantly from pre-test to post-test. Meanwhile, the eye-tracking results reveal that the time students spent on taking the FCI test was not affected by student performance and did not change from pre-test to post-test. Analysis of students’ attention to answer choices shows that on the pre-test students primarily focused on the naïve choices and ignored the expert choices. On the post-test, although students had shifted their primary attention to the expert choices, they still kept a high level of attention to the naïve choices, indicating significant conceptual mixing and competition during problem solving. Outcomes of this study provide new insights on students’ conceptual development in learning physics.
Melaina, M; Webster, K
2011-05-01
Recent U.S. climate change policy developments include aggressive proposals to reduce greenhouse gas emissions, including cap-and-trade legislation with a goal of an 83% reduction below 2005 levels by 2050. This study examines behavioral and technological changes required to achieve this reduction within the light-duty vehicle (LDV) sector. Under this "fair share" sectoral assumption, aggressive near-term actions are necessary in three areas: vehicle miles traveled (VMT), vehicle fuel economy (FE), and fuel carbon intensity (FCI). Two generic scenarios demonstrate the important role of FCI in meeting the 2050 goal. The first scenario allows deep reductions in FCI to compensate for relatively modest FE improvements and VMT reductions. The second scenario assumes optimistic improvements in FE, relatively large reductions in VMT and less aggressive FCI reductions. Each generic scenario is expanded into three illustrative scenarios to explore the theoretical implications of meeting the 2050 goal by relying exclusively on biofuels and hybrid vehicles, biofuels and plug-in hybrid vehicles, or hydrogen fuel cell electric vehicles. These scenarios inform a discussion of resource limitations, technology development and deployment challenges, and policy goals required to meet the 2050 GHG goal for LDVs.
Active Learning in the Physics Classroom
NASA Astrophysics Data System (ADS)
Naron, Carol
Many students enter physics classes filled with misconceptions about physics concepts. Students tend to retain these misconceptions into their adult lives, even after physics instruction. Constructivist researchers have found that students gain understanding through their experiences. Researchers have also found that active learning practices increase conceptual understanding of introductory physics students. This project study sought to examine whether incorporating active learning practices in an advanced placement physics classroom increased conceptual understanding as measured by the force concept inventory (FCI). Physics students at the study site were given the FCI as both a pre- and posttest. Test data were analyzed using two different methods---a repeated-measures t test and the Hake gain method. The results of this research project showed that test score gains were statistically significant, as measured by the t test. The Hake gain results indicated a low (22.5%) gain for the class. The resulting project was a curriculum plan for teaching the mechanics portion of Advanced Placement (AP) physics B as well as several active learning classroom practices supported by the research. This project will allow AP physics teachers an opportunity to improve their curricular practices. Locally, the results of this project study showed that research participants gained understanding of physics concepts. Social change may occur as teachers implement active learning strategies, thus creating improved student understanding of physics concepts.
Halme, Nina; Tarkka, Marja-Terttu; Paavilainen, Eija; Nummi, Tapio; Astedt-Kurki, Päivi
2010-06-01
Despite the fact that father-child involvement has extensive effects on the health and well-being of the family, there is a paucity of research on fathers' presence in health care research. The design and development of an instrument for assessing the characteristics of fathers' availability and engagement with their preschool-aged children in Finland is presented. Data collection was undertaken in two separate periods involving 263 and 821 fathers. Results indicate that the father-child instrument (FCI) is ready for use in research seeking to assess fathers' availability and engagement with their preschoolers. Further research is nonetheless required to assess the potential for a more sensitive interaction and for the generalization of the FCI.
ERIC Educational Resources Information Center
Fulmer, Gavin W.; Liang, Ling L.; Liu, Xiufeng
2014-01-01
This exploratory study applied a proposed force and motion learning progression (LP) to high-school and university students and to content involving both one- and two-dimensional force and motion situations. The Force Concept Inventory (FCI) was adapted, based on a previous content analysis and coding of the questions in the FCI in terms of the…
ERIC Educational Resources Information Center
Bani-Salameh, Hisham N.
2017-01-01
We started this work with the goal of detecting misconceptions held by our students about force and motion. A total of 341 students participated in this study by taking the force concept inventory (FCI) test both before and after receiving instructions about force or motion. The data from this study were analysed using different statistical…
The influence of restrained and external eating patterns on overeating.
Burton, Pat; Smit, Hendrik J; Lightowler, Helen J
2007-07-01
Eating in response to an increasingly obesogenic environment has been strongly implicated as a salient aspect of eating behaviour, arguably influenced by learning and experience. Interindividual differences in susceptibility to weight gain may be due, in part, to variability in response to environmental triggers. The phenomenon of food craving may also be an important factor influencing appetite control. The present study tested a model, in which food craving was hypothesised to be an intervening causal variable, on a causal pathway between responsivity to environmental cues and the development of obesity. One hundred and twenty four participants (aged 21-71 years, 83 females and 41 males) completed the study. Participants completed the Dutch eating behaviour questionnaire (DEBQ), measuring external eating (externality), emotional eating (emotionality) and restrained eating behaviour (restraint), and an adapted form of the food craving inventory (FCI), assessing cravings for carbohydrate, fats, sweets and fast food fats, in addition to total food cravings. Initial analysis showed positive correlations between FCI-tot and body mass index (BMI), FCI-fats and BMI and FCI-fast food fats and BMI in both men and women, and between FCI-carbohydrates and BMI in men only. Multiple regression analyses showed externality as the principal predictor of food craving, which was greater in males compared to females, but differential for different food groups between genders. Restrained eating and cravings for fats and fast food fats were negatively associated in women only. As predicted, total cravings, and cravings for fats and fast food foods mediated the positive association between external eating and BMI. It is concluded that appetitive response to external cues as an important risk factor in appetite control is mediated through cravings for particular food groups and is gender-dependent.
The FCI on board MTG : optical design and performances
NASA Astrophysics Data System (ADS)
Ouaknine, J.; Viard, T.; Napierala, B.; Foerster, U.; Fray, S.; Hallibert, P.; Durand, Y.; Imperiali, S.; Pelouas, P.; Rodolfo, J.; Riguet, F.; Carel, J.-L.
2017-11-01
Meteosat Third Generation is the next ESA Program of Earth Observation dedicated to provide Europe with an operational satellite system able to support accurate prediction of meteorological phenomena until the late 2030s. The satellites will be operating from the Geostationary orbit using a 3 axes stabilized platform. The main instrument is called the Flexible Combined Imager (FCI), currently under development by Thales Alenia Space France. It will continue the successful operation of the Spinning Enhanced Visible and Infrared Imager (SEVIRI) on Meteosat Second Generation (MSG) with improved performance. This instrument will provide full images of the Earth every 10 minutes in 16 spectral channels between 0.44 and 13.3 μm. The ground resolution is ranging from 0.5 km to 2 km. The FCI is composed of a telescope developed by Kayser-Threde, which includes a Scan mirror for the full Earth coverage, and a calibration mechanism with an embedded black body dedicated to accurate in-flight IR radiometric calibration. The image produced by the telescope is split into several spectral groups by a spectral separation assembly (SSA) thanks to dichroïc beamsplitters. The output beams are collimated to ease the instrument integration before reaching the cryostat. Inside, the cold optics (CO-I) focalize the optical beams onto the IR detectors. The cold optics and IR detectors are accurately positioned inside a common cold plate to improve registration between spectral channels. Spectral filters are integrated on top of the detectors in order to achieve the required spectral selection. This article describes the FCI optical design and performances. We will focus on the image quality needs, the high line-of-sight stability required, the spectral transmittance performance, and the stray-light rejection. The FCI currently under development will exhibit a significant improvement of performances with respect to MSG.
Gardner, L J; Polski, J M; Fallon, R; Dunphy, C H
1998-07-01
CD56 and CD57 are commonly considered as natural killer and neuroectodermal markers, but their expression has been identified in a wide spectrum of neoplasms including some cases of Ewing's sarcoma (ES) and primitive neuroectodermal tumor (PNET). We report two cases of small, round blue cell tumor (SRBCT), in which flow cytometry immunophenotyping (FCI) detected strong expression of CD56 and CD57 (one case). Immunohistochemical staining with Leu-19 and Leu-7 confirmed the FI results. Although CD56 and CD57 expression is consistent with ES/PNET, it can be potentially misleading if results of FCI are interpreted in the absence of other findings. These cases suggest the utility of FCI in undifferentiated SRBCT. The literature on CD56 and CD57 expression in ES/PNET is reviewed and discussed.
Sixteen years of collaborative learning through active sense-making in physics (CLASP) at UC Davis
NASA Astrophysics Data System (ADS)
Potter, Wendell; Webb, David; Paul, Cassandra; West, Emily; Bowen, Mark; Weiss, Brenda; Coleman, Lawrence; De Leone, Charles
2014-02-01
This paper describes our large reformed introductory physics course at UC Davis, which bioscience students have been taking since 1996. The central feature of this course is a focus on sense-making by the students during the 5 h per week discussion/labs in which the students take part in activities emphasizing peer-peer discussions, argumentation, and presentations of ideas. The course differs in many fundamental ways from traditionally taught introductory physics courses. After discussing the unique features of CLASP and its implementation at UC Davis, various student outcome measures are presented that show increased performance by students who took the CLASP course compared to students who took a traditionally taught introductory physics course. Measures we use include upper-division GPAs, MCAT scores, FCI gains, and MPEX-II scores.
Core-core and core-valence correlation
NASA Technical Reports Server (NTRS)
Bauschlicher, Charles W., Jr.; Langhoff, Stephen R.; Taylor, Peter R.
1988-01-01
The effect of 1s core correlation on properties and energy separations are analyzed using full configuration-interaction (FCI) calculations. The Be1S - 1P, the C 3P - 5S,m and CH(+) 1Sigma(+) - 1Pi separations, and CH(+) spectroscopic constants, dipole moment, and 1Sigma(+) - 1Pi transition dipole moment have been studied. The results of the FCI calculations are compared to those obtained using approximate methods.
An item response curves analysis of the Force Concept Inventory
NASA Astrophysics Data System (ADS)
Morris, Gary A.; Harshman, Nathan; Branum-Martin, Lee; Mazur, Eric; Mzoughi, Taha; Baker, Stephen D.
2012-09-01
Several years ago, we introduced the idea of item response curves (IRC), a simplistic form of item response theory (IRT), to the physics education research community as a way to examine item performance on diagnostic instruments such as the Force Concept Inventory (FCI). We noted that a full-blown analysis using IRT would be a next logical step, which several authors have since taken. In this paper, we show that our simple approach not only yields similar conclusions in the analysis of the performance of items on the FCI to the more sophisticated and complex IRT analyses but also permits additional insights by characterizing both the correct and incorrect answer choices. Our IRC approach can be applied to a variety of multiple-choice assessments but, as applied to a carefully designed instrument such as the FCI, allows us to probe student understanding as a function of ability level through an examination of each answer choice. We imagine that physics teachers could use IRC analysis to identify prominent misconceptions and tailor their instruction to combat those misconceptions, fulfilling the FCI authors' original intentions for its use. Furthermore, the IRC analysis can assist test designers to improve their assessments by identifying nonfunctioning distractors that can be replaced with distractors attractive to students at various ability levels.
Quantum Algorithms for Scientific Computing and Approximate Optimization
NASA Astrophysics Data System (ADS)
Hadfield, Stuart Andrew
Diversity and inclusion has been a concern for the physics community for nearly 50 years. Despite significant efforts including the American Physical Society (APS) Conferences for Undergraduate Women in Physics (CUWiP) and the APS Bridge Program, women, African Americans, and Hispanics continue to be substantially underrepresented in the physics profession. Similar efforts within the field of engineering, whose students make up the majority of students in the introductory calculus-based physics courses, have also met with limited success. With the introduction of research-based instruments such as the Force Concept Inventory (FCI), the Force and Motion Conceptual Evaluation (FMCE), and the Conceptual Survey of Electricity and Magnetism (CSEM), differences in performance by gender began to be reported. Researchers have yet to come to an agreement as to why these "gender gaps" exist in the conceptual inventories that are widely used in physics education research and/or how to reduce the gaps. The "gender gap" has been extensively studied; on average, for the mechanics conceptual inventories, male students outperform female students by 13% on the pretest and by 12% post instruction. While much of the gender gap research has been geared toward the mechanics conceptual inventories, there have been few studies exploring the gender gap in the electricity and magnetism conceptual inventories. Overall, male students outperform female students by 3.7% on the pretest and 8.5% on the post-test; however, these studies have much more variation including one study showing female students outperforming male students on the CSEM. Many factors have been proposed that may influence the gender gap, from differences in background and preparation to various psychological and sociocultural effects. A parallel but largely disconnected set of research has identified gender biased questions within the FCI. This research has produced sporadic results and has only been performed on the FCI. The work performed in this manuscript will seek to synthesize these strands and use large datasets and deep demographic data to understand the persistent differences in male and female performance.
Dunphy, C H; Polski, J M; Johns, G; Evans, H L; Gardner, L J
2001-06-01
A diagnosis of the hypogranular variant of acute promyelocytic leukemia (APLv) may be difficult to establish based on cytomorphology alone. However, the great majority of cases have a classical immunophenotype by flow cytometric immunophenotyping (FCI) (CD13+, CD33+, dim CD64+, HLA-DR-, and CD34-) and a classical enzyme cytochemical (EC) staining pattern. [intensely staining with myeloperoxidase, Sudan Black B, and chloroacetate esterase (CAE) and negative with alpha'-naphthyl acetate and butyrate esterases]. Although the immunophenotype of APLv by FCI has varied in the literature (HLA-DR +/- and CD34 +/-), the EC staining pattern has remained constant. We report a case of APLv with characteristic cytomorphology, compatible FCI data (CD13+, CD33+, dim CD64+, HLA-DR +/-, and CD34-), chromosomal detection of t(15; 17), and molecular detection of the PML/RAR alpha fusion gene; however, staining of the leukemic cells with CAE was quite uncharacteristic. We describe our findings.
Isometric Arm Strength and Subjective Rating of Upper Limb Fatigue in Two-Handed Carrying Tasks
Li, Kai Way; Chiu, Wen-Sheng
2015-01-01
Sustained carrying could result in muscular fatigue of the upper limb. Ten male and ten female subjects were recruited for measurements of isometric arm strength before and during carrying a load for a period of 4 minutes. Two levels of load of carrying were tested for each of the male and female subjects. Exponential function based predictive equations for the isometric arm strength were established. The mean absolute deviations of these models in predicting the isometric arm strength were in the range of 3.24 to 17.34 N. Regression analyses between the subjective ratings of upper limb fatigue and force change index (FCI) for the carrying were also performed. The results indicated that the subjective rating of muscular fatigue may be estimated by multiplying the FCI with a constant. The FCI may, therefore, be adopted as an index to assess muscular fatigue for two-handed carrying tasks. PMID:25794159
Isometric arm strength and subjective rating of upper limb fatigue in two-handed carrying tasks.
Li, Kai Way; Chiu, Wen-Sheng
2015-01-01
Sustained carrying could result in muscular fatigue of the upper limb. Ten male and ten female subjects were recruited for measurements of isometric arm strength before and during carrying a load for a period of 4 minutes. Two levels of load of carrying were tested for each of the male and female subjects. Exponential function based predictive equations for the isometric arm strength were established. The mean absolute deviations of these models in predicting the isometric arm strength were in the range of 3.24 to 17.34 N. Regression analyses between the subjective ratings of upper limb fatigue and force change index (FCI) for the carrying were also performed. The results indicated that the subjective rating of muscular fatigue may be estimated by multiplying the FCI with a constant. The FCI may, therefore, be adopted as an index to assess muscular fatigue for two-handed carrying tasks.
NASA Astrophysics Data System (ADS)
Glastre, W.; Marque, J.; Compain, E.; Deep, A.; Durand, Y.; Aminou, D. M. A.
2017-09-01
The Meteosat Third Generation (MTG) Programme is being realised through the well-established and successful Cooperation between EUMETSAT and ESA. It will ensure the future continuity of MSG with the capabilities to enhance nowcasting, global and regional numerical weather prediction, climate and atmospheric chemistry monitoring data from Geostationary Orbit. This will be achieved through a series of 6 satellites named MTG-I and MTG-S to bring to the meteorological community continuous high spatial, spectral and temporal resolution observations and geophysical parameters of the Earth based on sensors from the geo-stationary orbit. In particular, the imagery mission MTG-I will bring an improved continuation of the MSG satellites series with the Flexible Combined Imager (FCI) a broad spectral range (from UV to LWIR) with better spatial and spectral resolutions. The FCI will be able to take high spatial resolution pictures of the Earth within 8 VNIR and 8 IR channels. As one of the mission of this instrument is to provide a quantitative analysis of atmosphere compounds, the absolute observed radiance needs to be known with a specified accuracy for VNIR as low as to 5% at k=3 over its full dynamic. While the FCI is regularly recalibrated every 6 month at equinoxes, it is however requiring initial ground calibration for the beginning of its mission. The Multi Optical Test Assembly (MOTA) is one of the Optical Ground Support Equipment (OGSE) dedicated to various missions necessary for the integration of the FCI . This equipment, provided by Bertin Technologies, will be delivered to TAS-F by the end of 2016. One of its mission, is the on-ground absolute calibration of VNIR channels. In order to handle this, the MOTA will be placed in front of the FCI under representative vacuum conditions and will be able to project a perfectly known, calibrated radiance level within the full dynamic of FCI instrument. The main difficulty is the very demanding calibration level with respect to primary standards down to 3% (k=3) coupled with constraining environment (vacuum), large dynamic (up to factor 100), high spectral resolution of 3 nm. Another main difficulty is to adapt the specific MOTA etendue (300 mm pupil, 9 mrad field) to available primary standards. Each of these constraints were addressed by specific tool design and production, a fine optimization of the calibration procedure with a large involvement of metrology laboratories. This paper introduces the missions of MTG satellites and particularly of the FCI instrument. The requirements regarding the absolute calibration over the different spectrometric channels and the global strategy to fulfill them are described. The MOTA architecture and calibration strategy are then discussed and final expected results are presented, showing state of the art performances.
An algorithm for direct causal learning of influences on patient outcomes.
Rathnam, Chandramouli; Lee, Sanghoon; Jiang, Xia
2017-01-01
This study aims at developing and introducing a new algorithm, called direct causal learner (DCL), for learning the direct causal influences of a single target. We applied it to both simulated and real clinical and genome wide association study (GWAS) datasets and compared its performance to classic causal learning algorithms. The DCL algorithm learns the causes of a single target from passive data using Bayesian-scoring, instead of using independence checks, and a novel deletion algorithm. We generate 14,400 simulated datasets and measure the number of datasets for which DCL correctly and partially predicts the direct causes. We then compare its performance with the constraint-based path consistency (PC) and conservative PC (CPC) algorithms, the Bayesian-score based fast greedy search (FGS) algorithm, and the partial ancestral graphs algorithm fast causal inference (FCI). In addition, we extend our comparison of all five algorithms to both a real GWAS dataset and real breast cancer datasets over various time-points in order to observe how effective they are at predicting the causal influences of Alzheimer's disease and breast cancer survival. DCL consistently outperforms FGS, PC, CPC, and FCI in discovering the parents of the target for the datasets simulated using a simple network. Overall, DCL predicts significantly more datasets correctly (McNemar's test significance: p<0.0001) than any of the other algorithms for these network types. For example, when assessing overall performance (simple and complex network results combined), DCL correctly predicts approximately 1400 more datasets than the top FGS method, 1600 more datasets than the top CPC method, 4500 more datasets than the top PC method, and 5600 more datasets than the top FCI method. Although FGS did correctly predict more datasets than DCL for the complex networks, and DCL correctly predicted only a few more datasets than CPC for these networks, there is no significant difference in performance between these three algorithms for this network type. However, when we use a more continuous measure of accuracy, we find that all the DCL methods are able to better partially predict more direct causes than FGS and CPC for the complex networks. In addition, DCL consistently had faster runtimes than the other algorithms. In the application to the real datasets, DCL identified rs6784615, located on the NISCH gene, and rs10824310, located on the PRKG1 gene, as direct causes of late onset Alzheimer's disease (LOAD) development. In addition, DCL identified ER category as a direct predictor of breast cancer mortality within 5 years, and HER2 status as a direct predictor of 10-year breast cancer mortality. These predictors have been identified in previous studies to have a direct causal relationship with their respective phenotypes, supporting the predictive power of DCL. When the other algorithms discovered predictors from the real datasets, these predictors were either also found by DCL or could not be supported by previous studies. Our results show that DCL outperforms FGS, PC, CPC, and FCI in almost every case, demonstrating its potential to advance causal learning. Furthermore, our DCL algorithm effectively identifies direct causes in the LOAD and Metabric GWAS datasets, which indicates its potential for clinical applications. Copyright © 2016 Elsevier B.V. All rights reserved.
British Military freezing cold injuries: a 13-year review.
Heil, Kieran M; Oakley, E H N; Wood, A M
2016-12-01
Cold injuries have been a recurrent feature of warfare for millennia and continue to present during British Military operations today. Those affecting the peripheries are divided into freezing cold injury (FCI) and non-FCI. FCI occurs when tissue fluids freeze at around -0.5°C and is commonly referred to as frostnip or frostbite. All FMED7 notes held at the Institute of Naval Medicine's Cold Weather Injury Clinic (CIC) from 2002 to 2014 were searched for the terms 'frostbite' and 'frostnip' and then analysed to identify common themes. In total 245 results were found and from these, 149 patients with a positive FCI diagnosis were identified and formed the cohort of this study. Royal Marines (RM) represented over 50% of patients and Arctic training in Norway accounted for over two thirds of the total cases. The extremities were almost always those areas which were affected by FCI. Further analysis of the RM cases showed the majority of those injured were of the most junior rank (Marine/Private or Lance Corporal). A lack of supporting climatic and activity data meant that it was difficult to draw additional conclusions from the data collected. In future, a greater emphasis should be placed on collection of climatic and additional data when FCIs are diagnosed. These data should be collated at the end of each deployment and published as was regularly done historically. It is hoped that these data could then be used as the starting point for an annual climatic study day, where issues related to FCIs could be discussed in a Tri-Service environment and lessons learned disseminated around all British Forces personnel. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/.
NASA Astrophysics Data System (ADS)
Oktarisa, Y.; Utami, I. S.; Denny, Y. R.
2017-02-01
This study has been done to 34 science teacher candidates of Teachers’ Training and Education Faculty of Sultan Ageng Tirtayasa University at their first year of study during 2015-2016 school years. This research focused on student’s misconception about motion and force and how Problem Based Learning (PBL) reducing it. Diagnostic test of misconception about motion and force has been detected by using Force Concept Inventory (FCI). FCI had been used in pretest and posttest, and to find the reducing of students’ misconception N-Gain pretest and posttest of each student had been calculated. Quasi experiment one group pretest and posttest had been used as the research method, and Problem Based Learning (PBL) used as the treatment of manipulation. After two weeks learning motion and force with PBL approach, N-gain which obtained prove that misconception about motion and force had been reducing.
Quantum computing applied to calculations of molecular energies: CH2 benchmark.
Veis, Libor; Pittner, Jiří
2010-11-21
Quantum computers are appealing for their ability to solve some tasks much faster than their classical counterparts. It was shown in [Aspuru-Guzik et al., Science 309, 1704 (2005)] that they, if available, would be able to perform the full configuration interaction (FCI) energy calculations with a polynomial scaling. This is in contrast to conventional computers where FCI scales exponentially. We have developed a code for simulation of quantum computers and implemented our version of the quantum FCI algorithm. We provide a detailed description of this algorithm and the results of the assessment of its performance on the four lowest lying electronic states of CH(2) molecule. This molecule was chosen as a benchmark, since its two lowest lying (1)A(1) states exhibit a multireference character at the equilibrium geometry. It has been shown that with a suitably chosen initial state of the quantum register, one is able to achieve the probability amplification regime of the iterative phase estimation algorithm even in this case.
Examining gender differences on FCI performance in algebra and calculus based physics courses
NASA Astrophysics Data System (ADS)
Kreutzer, Kimberley; Boudreaux, Andrew
2009-05-01
The Force Concept Inventory (FCI) has been widely used to asses student understanding of Newtonian principles. Studies have shown a marked difference in the performance of men and women on both pre- and post-tests [1,2] and also indicate that experiential based instruction may lead to a reduction in this gender gap [1,3]. This poster presents FCI data collected at Western Washington University. Initial analysis of gender differences are consistent with those reported nationally. We also discuss factors that may contribute to the differences in performance and propose instructional strategies that are designed to address the gender gap. [4pt] [1] M. Lorenzo, et. al., ``Reducing the gender gap in the physics classroom,'' AJP 74(2), 118-122 (2006) [0pt] [2] J. Docktor and K. Heller, ``Gender Differences in Both Force Concept Inventory and Introductory Physics Performance,'' Proceedings at the 2008 PERC [0pt] [3] S. Pollack, et. al., ``Reducing the gender gap in the physics classroom: How sufficient is interactive engagement?'' PRST-PER 3 (2007)
NASA Technical Reports Server (NTRS)
Bryant, Cody; Meza, David; Schoenstein, Nicole; Schuh, Susan
2017-01-01
The International Space Station (ISS) first became a home and research laboratory for NASA and International Partner crewmembers over 16 years ago. Each ISS mission lasts approximately 6 months and consists of three to six crewmembers. After returning to Earth, most crewmembers participate in an extensive series of 30+ debriefs intended to further understand life onboard ISS and allow crews to reflect on their experiences. Examples of debrief data collected include ISS crew feedback about sleep, dining, payload science, scheduling and time planning, health & safety, and maintenance. The Flight Crew Integration (FCI) Operational Habitability (OpsHab) team, based at Johnson Space Center (JSC), is a small group of Human Factors engineers and one stenographer that has worked collaboratively with the NASA Astronaut office and ISS Program to collect, maintain, disseminate and analyze this data. The database provides an exceptional and unique resource for understanding the "crew perspective" on long duration space missions. Data is formatted and categorized to allow for ease of search, reporting, and ultimately trending, in order to understand lessons learned, recurring issues and efficiencies gained over time. Recently, the FCI OpsHab team began collaborating with the NASA JSC Knowledge Management team to provide analytical analysis and visualization of these over 75,000 crew comments in order to better ascertain the crew's perspective on long duration spaceflight and gain insight on changes over time. In this initial phase of study, a text mining framework was used to cluster similar comments and develop measures of similarity useful for identifying relevant topics affecting crew health or performance, locating similar comments when a particular issue or item of operational interest is identified, and providing search capabilities to identify information pertinent to future spaceflight systems and processes for things like procedure development and training. In addition, the comments were scored for sentiment using a polarity scoring algorithm to identify both positive and negative comments for particular groups and clusters, allowing the team to make analytically informed decisions regarding future hardware and operating procedures. The use of polarity scoring with time series analysis was used to provide insight into how crew health and habitability is changing throughout various spaceflight increments or the station lifecycle as a whole. Finally, a visualization framework was developed to address the needs of the end users to search for and analyze comments by user, category or mission. This paper will discuss how the use of an analytical framework in conjunction with the current human interface, improved the understanding of crew perspective and shortened the time for analysis allowing for more informed decisions and rapid development of improvements. These methods are significantly optimizing the way that this valuable data can be assessed and applied to current and future spaceflight design and development. This collaboration allows the FCI OpsHab team to effectively analyze and share data in a more automated and timely fashion. Trends are no longer derived manually and can be illustrated effectively and accurately with these evolving techniques to an ever growing group of human spaceflight end users.
Accurate quantum chemical calculations
NASA Technical Reports Server (NTRS)
Bauschlicher, Charles W., Jr.; Langhoff, Stephen R.; Taylor, Peter R.
1989-01-01
An important goal of quantum chemical calculations is to provide an understanding of chemical bonding and molecular electronic structure. A second goal, the prediction of energy differences to chemical accuracy, has been much harder to attain. First, the computational resources required to achieve such accuracy are very large, and second, it is not straightforward to demonstrate that an apparently accurate result, in terms of agreement with experiment, does not result from a cancellation of errors. Recent advances in electronic structure methodology, coupled with the power of vector supercomputers, have made it possible to solve a number of electronic structure problems exactly using the full configuration interaction (FCI) method within a subspace of the complete Hilbert space. These exact results can be used to benchmark approximate techniques that are applicable to a wider range of chemical and physical problems. The methodology of many-electron quantum chemistry is reviewed. Methods are considered in detail for performing FCI calculations. The application of FCI methods to several three-electron problems in molecular physics are discussed. A number of benchmark applications of FCI wave functions are described. Atomic basis sets and the development of improved methods for handling very large basis sets are discussed: these are then applied to a number of chemical and spectroscopic problems; to transition metals; and to problems involving potential energy surfaces. Although the experiences described give considerable grounds for optimism about the general ability to perform accurate calculations, there are several problems that have proved less tractable, at least with current computer resources, and these and possible solutions are discussed.
NASA Astrophysics Data System (ADS)
Lehtola, Susi; Tubman, Norm M.; Whaley, K. Birgitta; Head-Gordon, Martin
2017-10-01
Approximate full configuration interaction (FCI) calculations have recently become tractable for systems of unforeseen size, thanks to stochastic and adaptive approximations to the exponentially scaling FCI problem. The result of an FCI calculation is a weighted set of electronic configurations, which can also be expressed in terms of excitations from a reference configuration. The excitation amplitudes contain information on the complexity of the electronic wave function, but this information is contaminated by contributions from disconnected excitations, i.e., those excitations that are just products of independent lower-level excitations. The unwanted contributions can be removed via a cluster decomposition procedure, making it possible to examine the importance of connected excitations in complicated multireference molecules which are outside the reach of conventional algorithms. We present an implementation of the cluster decomposition analysis and apply it to both true FCI wave functions, as well as wave functions generated from the adaptive sampling CI algorithm. The cluster decomposition is useful for interpreting calculations in chemical studies, as a diagnostic for the convergence of various excitation manifolds, as well as as a guidepost for polynomially scaling electronic structure models. Applications are presented for (i) the double dissociation of water, (ii) the carbon dimer, (iii) the π space of polyacenes, and (iv) the chromium dimer. While the cluster amplitudes exhibit rapid decay with an increasing rank for the first three systems, even connected octuple excitations still appear important in Cr2, suggesting that spin-restricted single-reference coupled-cluster approaches may not be tractable for some problems in transition metal chemistry.
Applying the Socratic Method to Physics Education
NASA Astrophysics Data System (ADS)
Corcoran, Ed
2005-04-01
We have restructured University Physics I and II in accordance with methods that PER has shown to be effective, including a more interactive discussion- and activity-based curriculum based on the premise that developing understanding requires an interactive process in which students have the opportunity to talk through and think through ideas with both other students and the teacher. Studies have shown that in classes implementing this approach to teaching as compared to classes using a traditional approach, students have significantly higher gains on the Force Concept Inventory (FCI). This has been true in UPI. However, UPI FCI results seem to suggest that there is a significant conceptual hole in students' understanding of Newton's Second Law. Two labs in UPI which teach Newton's Second Law will be redesigned replacing more activity with students as a group talking through, thinking through, and answering conceptual questions asked by the TA. The results will be measured by comparing FCI results to those from previous semesters, coupled with interviews. The results will be analyzed, and we will attempt to understand why gains were or were not made.
Bondareva, S V; Vartbaronov, R A; Ponomarenko, K V; Bagaudinov, K G; Khomenko, M N
2009-01-01
The paper analyzes the data of expert tilt testing (-80 degrees, 20 min.) of 66 essentially healthy pilots. Hemodynamic reactions were characterized based on the standard concept of functional classes (FC). Good test tolerance was recorded in 86.4% of cases among which 36.4% were referred to FC-I and 50%--to FC-II. Adequate test tolerance (FC-II) was recorded in 10.6%; reduced and poor test tolerance (FC-IV and FC-V)--in 3%. According to ECG and computerized tachooscillography, the adaptive hemodynamic reactions were optimum in pilots of group FC-I as compared with group FC-II and all the more so when compared with FC-III. The last two groups showed some objective symptoms that had not been looked for in the past (a distinct lability of blood pressure, and incomplete hypertensive and hypotensive reactions) that differentiated these groups from FC-I. Results of the analysis made it possible to put forward additional clinical functional criteria to assess tilt tolerance of pilots with different levels of functional tolerance.
NASA Astrophysics Data System (ADS)
Baird, Dan; Asmus, Harald; Asmus, Ragnhild
2011-01-01
Flow networks of nine sub-systems consisting of 59 components each of the Sylt-Rømø Bight, German Wadden Sea, were constructed depicting the standing stocks and flows of material and energy within and between the sub-systems. Carbon, nitrogen and phosphorous were used as currencies for each sub-system, thus resulting in 27 network models, which were analyzed by ecological network analytical protocols. Results show substantial variability in the dynamics of these elements within and between the nine sub-systems, which differ in habitat structure, species diversity and in the standing stocks of their constituent living and non-living components. The relationship between the biodiversity and selected information indices and ratios, derived from ecological network analysis, of individual sub-systems is variable and differ substantially between them. Ecosystem properties such as the structure and magnitude of the recycling of these elements, number of cycles, and total sub-system activity were calculated and discussed, highlighting the differences between and complexity of the flow of C, N and P in a coastal marine ecosystem. The average number of cycles increase from 179 for C, to 16,923 and 20,580 for N and P respectively, while the average amount of recycled material, as measured by the Finn Cycling Index (FCI), increase from 17% for C, to 52% for P and to 61% for N. The number of cycles and the FCI vary considerably between the sub-systems for the different elements. The largest number of cycles of all three elements was observed in the muddy sand flat sub-system, but the highest FCIs were computed for both C (32%) and N (85%) in the Arenicola Flats, and in sparse Zostera noltii sea grass beds for P (67%). Indices reflecting on the growth, organization and resilience of the sub-systems also showed considerable variability between and within the inter-tidal ecosystems in the Bight. Indices such as, for example, the relative ascendency ratios increase on average from C to N to P, whereas others, such as the Average Mutual Information and Flow Diversity indices, were found to be higher in the N models than in the C or P ones.
The mechanistic basis of pH-dependent 5-flucytosine resistance in Aspergillus fumigatus.
Gsaller, Fabio; Furukawa, Takanori; Carr, Paul D; Rash, Bharat; Jöchl, Christoph; Bertuzzi, Margherita; Bignell, Elaine M; Bromley, Michael J
2018-04-02
The antifungal drug 5-flucytosine (5FC), a derivative of the nucleobase cytosine, is licenced for treatment of fungal diseases however it is rarely used as a monotherapeutic to treat Aspergillus infection. Despite being potent against other fungal pathogens, 5FC has limited activity against A. fumigatus when standard in vitro assays are used to determine susceptibility. However, in modified in vitro assays where the pH is set to pH 5 the activity of 5FC increases significantly.Here we provide evidence that fcyB , a gene that encodes a purine-cytosine permease orthologous to known 5FC importers is downregulated at pH 7 and is the primary factor responsible for the low efficacy of 5FC at pH 7. We also uncover two transcriptional regulators that are responsible for repression of fcyB and consequently mediators of 5FC resistance, the CCAAT binding complex (CBC) and the pH regulatory protein PacC. We propose that the activity of 5FC might be enhanced by perturbation of factors that repress fcyB expression such as PacC or other components of the pH sensing machinery. Copyright © 2018 American Society for Microbiology.
Barnes, Jo; Morris, Andrew
2009-01-01
The ability to predict impairment outcomes in large databases using a simplified technique allows researchers to focus attention on preventing costly impairing injuries. The dilemma that exists for researchers is to determine which method is the most reliable and valid. This study examines available methods to predict impairment and explores the differences between the IIS and pFCI applied to real world crash injury data. Occupant injury data from the UK Co-operative Crash Injury Study (CCIS) database have been coded using AIS 1990 and AIS 2005. The data have subsequently been recoded using the associated impairment scales namely the Injury Impairment Scale (IIS) and the predicted Functional Capacity Index (pFCI) to determine the predicted impairment levels of injuries at one year post crash. Comparisons between the levels of impairment were made and any differences further explored. Injury data for the period February 2006 to September 2008 from the CCIS database were used in the analysis which involved a dataset of 2,437 occcupants who sustained over 8000 injuries. This study found some differences between the impairment scales for injuries coded to the AIS 1990 and AIS 2005 coding dictionaries. The pFCI predicts 31.5% of injuries to be impairing in AIS 2005, less than the IIS (38.5%) using AIS 1990. Using CCIS data the pFCI predicted that only 6% of the occupants with a coded injury would have an impairing injury compared to 24% of occupants using the IIS. The main body regions identified as having the major differences between the two impairment scales for car occupants were the head and spine. Follow up data were then used for a small number of cases (n=31, lower extremity and whiplash injuries) to examine any differences in predicted impairment versus perceived impairment. These data were selected from a previous study conducted between 2003 and 2006 and identified the discrepancy between predicted impairment and actual perceived impairment as defined by the participant. Overall the work highlights the variaton between the pFCI and IIS and emphasises the importance and need for a single validated impairment scale that can be universally applied. This would allow emphasis to be directed towards preventing injuries that are associated with the most significant impairment outcomes. PMID:20184844
Barnes, Jo; Morris, Andrew
2009-10-01
The ability to predict impairment outcomes in large databases using a simplified technique allows researchers to focus attention on preventing costly impairing injuries. The dilemma that exists for researchers is to determine which method is the most reliable and valid. This study examines available methods to predict impairment and explores the differences between the IIS and pFCI applied to real world crash injury data. Occupant injury data from the UK Co-operative Crash Injury Study (CCIS) database have been coded using AIS 1990 and AIS 2005. The data have subsequently been recoded using the associated impairment scales namely the Injury Impairment Scale (IIS) and the predicted Functional Capacity Index (pFCI) to determine the predicted impairment levels of injuries at one year post crash. Comparisons between the levels of impairment were made and any differences further explored. Injury data for the period February 2006 to September 2008 from the CCIS database were used in the analysis which involved a dataset of 2,437 occcupants who sustained over 8000 injuries. This study found some differences between the impairment scales for injuries coded to the AIS 1990 and AIS 2005 coding dictionaries. The pFCI predicts 31.5% of injuries to be impairing in AIS 2005, less than the IIS (38.5%) using AIS 1990. Using CCIS data the pFCI predicted that only 6% of the occupants with a coded injury would have an impairing injury compared to 24% of occupants using the IIS. The main body regions identified as having the major differences between the two impairment scales for car occupants were the head and spine. Follow up data were then used for a small number of cases (n=31, lower extremity and whiplash injuries) to examine any differences in predicted impairment versus perceived impairment. These data were selected from a previous study conducted between 2003 and 2006 and identified the discrepancy between predicted impairment and actual perceived impairment as defined by the participant. Overall the work highlights the variation between the pFCI and IIS and emphasises the importance and need for a single validated impairment scale that can be universally applied. This would allow emphasis to be directed towards preventing injuries that are associated with the most significant impairment outcomes.
Theoretical study of the hyperfine parameters of OH
NASA Technical Reports Server (NTRS)
Chong, Delano P.; Langhoff, Stephen R.; Bauschlicher, Charles W., Jr.
1991-01-01
In the present study of the hyperfine parameters of O-17H as a function of the one- and n-particle spaces, all of the parameters except oxygen's spin density, b sub F(O), are sufficiently easily tractable to allow concentration on the computational requirements for accurate determination of b sub F(O). Full configuration-interaction (FCI) calculations in six Gaussian basis sets yield unambiguous results for (1) the effect of uncontracting the O s and p basis sets; (2) that of adding diffuse s and p functions; and (3) that of adding polarization functions to O. The size-extensive modified coupled-pair functional method yields b sub F values which are in fair agreement with FCI results.
Texas Science Teacher Characteristics and Conceptual Understanding of Newton's Laws of Motion
NASA Astrophysics Data System (ADS)
Busby, Karin Burk
Misconceptions of Newtonian mechanics and other physical science concepts are well documented in primary and pre-service teacher populations (Burgoon, Heddle, & Duran, 2009; Allen & Coole, 2012; Kruger, Summers, & Palacio, 1990; Ginns & Watters, 1995; Trumper, 1999; Asikainen & Hirovonen, 2014). These misconceptions match the misconceptions held by students, leaving teachers ill-equipped to rectify these concepts in the classroom (Kind, 2014; Kruger et al., 1990; Cochran & Jones, 1998). Little research has been devoted to misconceptions held by in-service secondary teachers, the population responsible for teaching Newtonian mechanics. This study focuses on Texas in-service science teachers in middle school and high school science, specifically sixth grade science, seventh grade science, eighth grade science, integrated physics and chemistry, and physics teachers. This study utilizes two instruments to gauge conceptual understanding of Newton's laws of motion: the Force Concept Inventory [FCI] (Hestenes, Wells, & Swackhamer, 1992) and a custom instrument developed for the Texas Regional Collaboratives for Excellence in Science and Mathematics Teaching (Urquhart, M., e-mail, April 4, 2017). Use of each instrument had its strengths and limitations. In the initial work of this study, the FCI was given to middle and high school teacher volunteers in two urban school districts in the Dallas- Fort Worth area to assess current conceptual understanding of Newtonian mechanics. Along with the FCI, each participant was asked to complete a demographic survey. Demographic data collected included participant's sex, years of service in teaching position, current teaching position, degrees, certification type, and current certifications for science education. Correlations between variables and overall average on the FCI were determined by t-tests and ANOVA tests with a post-hoc Holm-Bonferroni correction test. Test questions pertaining to each of Newton's three laws of motion were extrapolated to determine any correlations. The sample size for this study was small (n=24), requiring a second study investigate potential correlations to teacher characteristics. The second study was conducted using the 2013-2014 school year participants in the Texas Regional Collaboratives for Excellence in Science and Mathematics Teaching [TRC] (Texas Regional Collaborative for Excellence in Science and Mathematics Teaching, 2013), a statewide program led by The University of Texas at Austin Center for STEM Education (Texas Regional Collaborative for Excellence in Science and Mathematics Teaching, 2013). Participants completed a demographic survey and took the TRC Physics Assessment instrument developed for the TRC to determine current conceptual understanding of Newtonian mechanics as defined by the Texas Essential Knowledge and Skills. The TRC also collected demographic data including Texas Educational Agency region, participant's sex, years of service in teaching, current teaching position, level of highest degree earned, whether or not the participant had a STEM degree, and certification type. Correlations were determined between overall average and conceptual force questions only. The sample size was substantial (n=368) but due to time constraints in its development, the TRC Physics Assessment was unable to undergo reliability or validity testing before implementation. Test question pertaining to each of Newton's three laws of motion were extrapolated to determine any correlations. A significance value of p= 0.05 was used for all tests. Both content assessments indicated that, on average, teacher-participants had a considerable misunderstanding of Newtonian mechanics with Newton's third law questions especially difficult for the populations. Teachers' current teaching assignment was statistically significant for most tests, suggesting that high school physics teachers have more conceptual understanding of Newtonian mechanics than middle school teachers but have not necessarily mastered Newtonian mechanics. STEM majors and participant's sex were significant only for the TRC Physics Assessment. One outcome of this study is a recommendation that the Texas teacher certification process for middle school science change to include a general science test that includes physical science. Also, in-service science teachers responsible for teaching Newton's laws of motion should participate in specific professional development from a physics content educational expert to address misconceptions. Additional recommendations include that physics teachers take a mentoring role to help other teachers in physical science concepts and that middle school curriculum provide assistance to teachers for addressing misconceptions of Newton's third law.
Cognitive correlates of financial abilities in mild cognitive impairment.
Okonkwo, Ozioma C; Wadley, Virginia G; Griffith, H Randall; Ball, Karlene; Marson, Daniel C
2006-11-01
To investigate the cognitive correlates of financial abilities in mild cognitive impairment (MCI). Controlled, matched-sample, cross-sectional analysis regressing five cognitive composites on financial performance measures. University medical and research centers. Forty-three persons with MCI and 43 normal controls. The Financial Capacity Instrument (FCI) and a comprehensive neurocognitive battery. Patients with MCI performed significantly worse than controls on cognitive domains of executive function, memory, and language and on FCI domains of financial conceptual knowledge, bank statement management, and bill payment. Patients with MCI also needed significantly more time to complete a multistep financial task and were significantly more likely than controls to make errors on this task. Stepwise regression models revealed that, within the MCI group, attention and executive function were significant correlates of FCI performance. Although impaired memory is the cardinal deficit in MCI, the neurocognitive basis of lower functional performance in MCI appears to be emergent declines in abilities to selectively attend, self-monitor, and temporally integrate information. Compromised performance on cognitive measures of attention and executive function may constitute clinical markers of lower financial abilities and should be evaluated for its relationship to functional ability in general. These cognitive domains may be appropriate targets of future intervention studies aimed at preservation of functional independence in people with MCI.
DOE Office of Scientific and Technical Information (OSTI.GOV)
farahani, A.A.; Corradini, M.L.
Given some transient power/cooling mismatch is a nuclear reactor and its inability to establish the necessary core cooling, energetic fuel-coolant interactions (FCI`s commonly called `vapor explosions`) could occur as a result of the core melting and coolant contact. Although a large number of studies have been done on energetic FCI`s, very few experiments have been performed with the actual fuel materials postulated to be produced in severe accidents. Because of the scarcity of well-characterized FCI data for uranium allows in noncommercial reactors (cermet and silicide fuels), we have conducted a series of experiments to provide a data base for themore » foregoing materials. An existing 1-D shock-tube facility was modified to handle depleted radioactive materials (U{sub 3}O{sub 8}-Al, and U{sub 3}Si{sub 2}-Al). Our objectives have been to determine the effects of the initial fuel composition and temperature and the driving pressure (triggering) on the explosion work output, dynamic pressures, transient temperatures, and the hydrogen production. Experimental results indicate limited energetics, mainly thermal interactions, for these fuel materials as compared to aluminum where more chemical reactions occur between the molten aluminum and water.« less
NASA Astrophysics Data System (ADS)
Hill, Peter; Shanahan, Brendan; Dudson, Ben
2017-04-01
We present a technique for handling Dirichlet boundary conditions with the Flux Coordinate Independent (FCI) parallel derivative operator with arbitrary-shaped material geometry in general 3D magnetic fields. The FCI method constructs a finite difference scheme for ∇∥ by following field lines between poloidal planes and interpolating within planes. Doing so removes the need for field-aligned coordinate systems that suffer from singularities in the metric tensor at null points in the magnetic field (or equivalently, when q → ∞). One cost of this method is that as the field lines are not on the mesh, they may leave the domain at any point between neighbouring planes, complicating the application of boundary conditions. The Leg Value Fill (LVF) boundary condition scheme presented here involves an extrapolation/interpolation of the boundary value onto the field line end point. The usual finite difference scheme can then be used unmodified. We implement the LVF scheme in BOUT++ and use the Method of Manufactured Solutions to verify the implementation in a rectangular domain, and show that it does not modify the error scaling of the finite difference scheme. The use of LVF for arbitrary wall geometry is outlined. We also demonstrate the feasibility of using the FCI approach in no n-axisymmetric configurations for a simple diffusion model in a "straight stellarator" magnetic field. A Gaussian blob diffuses along the field lines, tracing out flux surfaces. Dirichlet boundary conditions impose a last closed flux surface (LCFS) that confines the density. Including a poloidal limiter moves the LCFS to a smaller radius. The expected scaling of the numerical perpendicular diffusion, which is a consequence of the FCI method, in stellarator-like geometry is recovered. A novel technique for increasing the parallel resolution during post-processing, in order to reduce artefacts in visualisations, is described.
Dual-energy-X-ray imaging to measure phase volume fractions in a transient multiphase flow
NASA Astrophysics Data System (ADS)
Loewen, Eric Paul
1999-12-01
The objective of this research was to visualize the pre-mixing phase of a fuel-coolant interaction (FCI) by using combinations of high-speed cinematography and dual energy X-ray imaging to identify and quantify the spatial and temporal characteristics of the three FCI phases---metal (fuel), liquid (coolant water), and voids (generated steam). (1) The high-speed cinematography imaging subsystem and the low-energy X-ray imaging subsystem provided visual photographs and distinguished generated voids from water. (2) The high-energy X-Ray imaging subsystem provided additional discernment of metal from water and vapor. This is the first time that dynamic dual X-ray images have been provided with quantitative results. The data provide new information concerning the melt fractions, melt jet configuration, melt jet velocity, and qualitative spatial and temporal quantification of the pre-mixing event. This information provides new insight into the FCI phenomenon that could not have been deduced from visible-light imaging or other instrumentation such as thermocouples, void sensors, or pressure transmitters. Significant findings include: (1) the fuel column (molten Pb jet) penetrated deeply (<7 cm) into the coolant (water) while maintaining its columnar shape. (2) Energetic FCIs occurred (and were imaged) below the melt-coolant interface temperature equal to the homogenous nucleation temperature (310°C). (3) The molten jet breakup was observed to be caused by hydrodynamic forces. (4) The Pb/water thermal interaction zone was imaged over melt temperatures from 330°C to 640°C and coolant subcooling of 4°C to 80°C. (5) The interface regions between the molten Pb and coolant was observed to grow with decreasing coolant subcooling. This imaging process can be applied to further study of the FCI phenomena at other test facilities. It can also be applied for observation of other two- or three-phase flow phenomena previously opaque to conventional imaging systems.
Putrik, Polina; Ramiro, Sofia; Lie, Elisabeth; Michaud, Kaleb; Kvamme, Maria K; Keszei, Andras P; Kvien, Tore K; Uhlig, Till; Boonen, Annelies
2018-03-01
To develop algorithms for calculating the Rheumatic Diseases Comorbidity Index (RDCI), Charlson-Deyo Index (CDI) and Functional Comorbidity Index (FCI) from the Medical Dictionary for Regulatory Activities (MedDRA), and to assess how these MedDRA-derived indices predict clinical outcomes, utility and health resource utilization (HRU). Two independent researchers linked the preferred terms of the MedDRA classification into the conditions included in the RDCI, the CDI and the FCI. Next, using data from the Norwegian Register-DMARD study (a register of patients with inflammatory joint diseases treated with DMARDs), the explanatory value of these indices was studied in models adjusted for age, gender and DAS28. Model fit statistics were compared in generalized estimating equation (prediction of outcome over time) models using as outcomes: modified HAQ, HAQ, physical and mental component summary of SF-36, SF6D and non-RA related HRU. Among 4126 patients with RA [72% female, mean (s.d.) age 56 (14) years], median (interquartile range) of RDCI at baseline was 0.0 (1.0) [range 0-6], CDI 0.0 (0.0) [0-7] and FCI 0.0 (1.0) [0-6]. All the comorbidity indices were associated with each outcome, and differences in their performance were moderate. The RDCI and FCI performed better on clinical outcomes: modified HAQ and HAQ, hospitalization, physical and mental component summary, and SF6D. Any non-RA related HRU was best predicted by RDCI followed by CDI. An algorithm is now available to compute three commonly used comorbidity indices from MedDRA classification. Indices performed comparably well in predicting a variety of outcomes, with the CDI performing slightly worse when predicting outcomes reflecting functioning and health. © The Author 2017. Published by Oxford University Press on behalf of the British Society for Rheumatology. All rights reserved. For Permissions, please email: journals.permissions@oup.com
Secondary analysis of teaching methods in introductory physics: A 50 k-student study
NASA Astrophysics Data System (ADS)
Von Korff, Joshua; Archibeque, Benjamin; Gomez, K. Alison; Heckendorf, Tyrel; McKagan, Sarah B.; Sayre, Eleanor C.; Schenk, Edward W.; Shepherd, Chase; Sorell, Lane
2016-12-01
Physics education researchers have developed many evidence-based instructional strategies to enhance conceptual learning of students in introductory physics courses. These strategies have historically been tested using assessments such as the Force Concept Inventory (FCI) and the Force and Motion Conceptual Evaluation (FMCE). We have performed a review and analysis of FCI and FMCE data published between 1995 and 2014. We confirm previous findings that interactive engagement teaching techniques are significantly more likely to produce high student learning gains than traditional lecture-based instruction. We also establish that interactive engagement instruction works in many settings, including those with students having a high and low level of prior knowledge, at liberal arts and research universities, and enrolled in both small and large classes.
NASA Astrophysics Data System (ADS)
Bruun, Jesper; Brewe, Eric
2013-12-01
The role of student interactions in learning situations is a foundation of sociocultural learning theory, and social network analysis can be used to quantify student relations. We discuss how self-reported student interactions can be viewed as processes of meaning making and use this to understand how quantitative measures that describe the position in a network, called centrality measures, can be understood in terms of interactions that happen in the context of a university physics course. We apply this discussion to an empirical data set of self-reported student interactions. In a weekly administered survey, first year university students enrolled in an introductory physics course at a Danish university indicated with whom they remembered having communicated within different interaction categories. For three categories pertaining to (1) communication about how to solve physics problems in the course (called the PS category), (2) communications about the nature of physics concepts (called the CD category), and (3) social interactions that are not strictly related to the content of the physics classes (called the ICS category) in the introductory mechanics course, we use the survey data to create networks of student interaction. For each of these networks, we calculate centrality measures for each student and correlate these measures with grades from the introductory course, grades from two subsequent courses, and the pretest Force Concept Inventory (FCI) scores. We find highly significant correlations (p<0.001) between network centrality measures and grades in all networks. We find the highest correlations between network centrality measures and future grades. In the network composed of interactions regarding problem solving (the PS network), the centrality measures hide and PageRank show the highest correlations (r=-0.32 and r=0.33, respectively) with future grades. In the CD network, the network measure target entropy shows the highest correlation (r=0.45) with future grades. In the network composed solely of noncontent related social interactions, these patterns of correlation are maintained in the sense that these network measures show the highest correlations and maintain their internal ranking. Using hierarchical linear regression, we find that a linear model that adds the network measures hide and target entropy, calculated on the ICS network, significantly improves a base model that uses only the FCI pretest scores from the beginning of the semester. Though one should not infer causality from these results, they do point to how social interactions in class are intertwined with academic interactions. We interpret this as an integral part of learning, and suggest that physics is a robust example.
Implications of Functional Capacity Loss and Fatality for Vehicle Safety Prioritization.
McMurry, Timothy L; Sherwood, Chris; Poplin, Gerald S; Seguí-Gómez, María; Crandall, Jeff
2015-01-01
We investigate the use of the Functional Capacity Index (FCI) as a tool for establishing vehicle safety priorities by comparing the life year burden of injuries to the burden of fatality in frontal and side automotive crashes. We demonstrate FCI's utility by investigating in detail the resulting disabling injuries and their life year costs. We selected occupants in the 2000-2013 NASS-CDS database involved in frontal and side crashes, merged their injuries with FCI, and then used the merged data to estimate each occupant's overall functional loss. Lifetime functional loss was assessed by combining this measure of impairment with the occupants' expected future life spans, estimated from the Social Security Administration's Actuarial Life Table. Frontal crashes produce a large number of disabling injuries, particularly to the lower extremities. In our population, these crashes are estimated to account for approximately 400,000 life years lost to disability in comparison with 500,000 life years lost to fatality. Victims of side crashes experienced a higher rate of fatality but a significantly lower rate of disabling injury (0.3 vs. 1.0%), resulting in approximately 370,000 life years lost to fatality versus 50,000 life years lost to disability. The burden of disabling injuries to car crash survivors should be considered when setting vehicle safety design priorities. In frontal crashes this burden in life years is similar to the burden attributable to fatality.
Li, Xiangzhu; Paldus, Josef
2009-09-21
The automerization of cyclobutadiene (CBD) is employed to test the performance of the reduced multireference (RMR) coupled-cluster (CC) method with singles and doubles (RMR CCSD) that employs a modest-size MR CISD wave function as an external source for the most important (primary) triples and quadruples in order to account for the nondynamic correlation effects in the presence of quasidegeneracy, as well as of its perturbatively corrected version accounting for the remaining (secondary) triples [RMR CCSD(T)]. The experimental results are compared with those obtained by the standard CCSD and CCSD(T) methods, by the state universal (SU) MR CCSD and its state selective or state specific (SS) version as formulated by Mukherjee et al. (SS MRCC or MkMRCC) and, wherever available, by the Brillouin-Wigner MRCC [MR BWCCSD(T)] method. Both restricted Hartree-Fock (RHF) and multiconfigurational self-consistent field (MCSCF) molecular orbitals are employed. For a smaller STO-3G basis set we also make a comparison with the exact full configuration interaction (FCI) results. Both fundamental vibrational energies-as obtained via the integral averaging method (IAM) that can handle anomalous potentials and automatically accounts for anharmonicity- and the CBD automerization barrier for the interconversion of the two rectangular structures are considered. It is shown that the RMR CCSD(T) potential has the smallest nonparallelism error relative to the FCI potential and the corresponding fundamental vibrational frequencies compare reasonably well with the experimental ones and are very close to those recently obtained by other authors. The effect of anharmonicity is assessed using the second-order perturbation theory (MP2). Finally, the invariance of the RMR CC methods with respect to orbital rotations is also examined.
Stimulated Brillouin scatter in a magnetized ionospheric plasma.
Bernhardt, P A; Selcher, C A; Lehmberg, R H; Rodriguez, S P; Thomason, J F; Groves, K M; McCarrick, M J; Frazer, G J
2010-04-23
High power electromagnetic waves transmitted from the HAARP facility in Alaska can excite low-frequency electrostatic waves by magnetized stimulated Brillouin scatter. Either an ion-acoustic wave with a frequency less than the ion cyclotron frequency (f(CI)) or an electrostatic ion cyclotron (EIC) wave just above f(CI) can be produced. The coupled equations describing the magnetized stimulated Brillouin scatter instability show that the production of both ion-acoustic and EIC waves is strongly influenced by the wave propagation relative to the background magnetic field. Experimental observations of stimulated electromagnetic emissions using the HAARP transmitter have confirmed that only ion-acoustic waves are excited for propagation along the magnetic zenith and that EIC waves can only be detected with oblique propagation angles. The ion composition can be obtained from the measured EIC frequency.
A Taxonomy of Introductory Physics Concepts.
NASA Astrophysics Data System (ADS)
Mokaya, Fridah; Savkar, Amit; Valente, Diego
We have designed and implemented a hierarchical taxonomic classification of physics concepts for our introductory physics for engineers course sequence taught at the University of Connecticut. This classification can be used to provide a mechanism to measure student progress in learning at the level of individual concepts or clusters of concepts, and also as part of a tool to measure effectiveness of teaching pedagogy. We examine our pre- and post-test FCI results broken down by topics using Hestenes et al.'s taxonomy classification for the FCI, and compare these results with those found using our own taxonomy classification. In addition, we expand this taxonomic classification to measure performance in our other course exams, investigating possible correlations in results achieved across different assessments at the individual topic level. UCONN CLAS(College of Liberal Arts and Science).
On the Foundations of the Two Measures Field Theory
DOE Office of Scientific and Technical Information (OSTI.GOV)
Guendelman, E. I.; Kaganovich, A. B.
2006-11-03
Two Measures Field Theory (TMT) uses both the Riemannian volume element {radical}(-g)d{sup 4}x and a new one Fcy d4x where the new measure of integration Fcy can be build of four scalar fields. Arguments in favor of TMT, both from the point of view of first principles and from the TMT results are summarized. Possible origin of the TMT and symmetries that protect the structure of TMT are reviewed. It appears that four measure scalar fields treated as 'physical coordinates' allow to define local observables in quantum gravity. The resolution of the old cosmological constant problem as a possible directmore » consequence of the TMT structure is discussed. Other applications of TMT to cosmology and particle physics are also mentioned.« less
Floquet high Chern insulators in periodically driven chirally stacked multilayer graphene
NASA Astrophysics Data System (ADS)
Li, Si; Liu, Cheng-Cheng; Yao, Yugui
2018-03-01
Chirally stacked N-layer graphene is a semimetal with ±p N band-touching at two nonequivalent corners in its Brillioun zone. We predict that an off-resonant circularly polarized light (CPL) drives chirally stacked N-layer graphene into a Floquet Chern insulators (FCIs), aka quantum anomalous Hall insulators, with tunable high Chern number C F = ±N and large gaps. A topological phase transition between such a FCI and a valley Hall (VH) insulator with high valley Chern number C v = ±N induced by a voltage gate can be engineered by the parameters of the CPL and voltage gate. We propose a topological domain wall between the FCI and VH phases, along which perfectly valley-polarized N-channel edge states propagate unidirectionally without backscattering.
Frequency of DEA 1 antigen in 1037 mongrel and PUREBREED dogs in ITALY.
Carli, E; Carminato, A; Ravagnan, S; Capello, K; Antognoni, M T; Miglio, A; Furlanello, T; Proverbio, D; Spada, E; Stefani, A; Mutinelli, F; Vascellari, M
2017-11-29
The prevalence of dog erythrocyte antigen (DEA 1) in canine population is approximately 40-60%. Often data are limited to a small number of breeds and/or dogs. The aims of this study were to evaluate frequency of DEA 1 in a large population of purebred and mongrel dogs including Italian native breeds and to recognize a possible association between DEA 1 and breed, sex, and genetic and phenotypical/functional classifications of breeds. Frequencies of DEA 1 blood group collected from screened/enrolled blood donors and from healthy and sick dogs were retrospectively evaluated. The breed and the sex were recorded when available. DEA 1 blood typing was assessed by immunocromatographic test on K3EDTA blood samples. The prevalence of DEA 1 antigen was statistically related to breed, gender, Fédération Cynologique Internationale (FCI) and genotypic grouping. Sixty-two per cent dogs resulted DEA 1+ and 38% DEA 1-. DEA 1- was statistically associated with Dogo Argentino, Dobermann, German Shepherd, Boxer, Corso dogs, the molossian dogs, the FCI group 1, 2 and 3 and the genetic groups "working dogs" and "mastiff". DEA 1+ was statistically associated with Rottweiler, Briquet Griffon Vendéen, Bernese mountain dog, Golden Retriever, the hunting breeds, the FCI group 4, 6, 7 and 8 and the genetic groups "scent hounds" and "retrievers". No gender association was observed. Data obtained by this work may be clinically useful to drive blood donor enrollment and selection among different breeds.
Jabson, Jennifer M
2015-12-01
Cancer survivors require follow-up care to ensure early detection of recurrence, management of late/long term effects, preventive screening for early detection of second primary malignancies, as well as other forms of preventive care. But not all survivors receive necessary follow-up care. Combining survivorship care plans and patient navigation may be a successful strategy to improve survivor's receipt of necessary follow-up care. Using data from the 2010 LIVESTRONG online survey of cancer survivors (N = 3854), this study tested associations between receipt of follow-up care instructions (FCI) and treatment summaries (TS) paired with patient navigation (PN), and survivor's receipt of cancer surveillance, preventive cancer screening, and attendance at regular medical appointments. Survivors who received FCI, TS, and patient navigation were the most likely to report attendance at all medical appointments (aOR 4.17, 95% CI 2.30, 7.57, p ≤ .001) and receipt of preventive cancer screening (aOR 3.56, 95% CI 2.28, 5.55, p ≤ .001). Likelihood of receiving follow-up care was greatest when survivors received FCI, TS, and PN. This pairing appeared to be most beneficial for survivor's attendance at medical appointments and receipt of preventive cancer screening. By improving attendance at medical appointments and prevention cancer screening, pairing SCP and PN could benefit survivors through reduced recurrence, earlier recurrence detection, and prevention of second primaries.
Nonaxisymmetric modelling in BOUT++; toward global edge fluid turbulence in stellarators
NASA Astrophysics Data System (ADS)
Shanahan, Brendan; Hill, Peter; Dudson, Ben
2016-10-01
As Wendelstein 7-X has been optimized for neoclassical transport, turbulent transport could potentially become comparable to neoclassical losses. Furthermore, the imminent installation of an island divertor merits global edge modelling to determine heat flux profiles and the efficacy of the system. Currently, however, nonaxisymmetric edge plasma modelling is limited to either steady state (non-turbulent) transport modelling, or computationally expensive gyrokinetics. The implementation of the Flux Coordinate Independent (FCI) approach to parallel derivatives has allowed the extension of the BOUT++ edge fluid turbulence framework to nonaxisymmetric geometries. Here we first investigate the implementation of the FCI method in BOUT++ by modelling diffusion equations in nonaxisymmetric geometries with and without boundary interaction, and quantify the inherent error. We then present the results of non-turbulent transport modelling and compare with analytical theory. The ongoing extension of BOUT++ to nonaxisymmetric configurations, and the prospects of stellarator edge fluid turbulence simulations will be discussed.
Sugisaki, Kenji; Yamamoto, Satoru; Nakazawa, Shigeaki; Toyota, Kazuo; Sato, Kazunobu; Shiomi, Daisuke; Takui, Takeji
2016-08-18
Quantum computers are capable to efficiently perform full configuration interaction (FCI) calculations of atoms and molecules by using the quantum phase estimation (QPE) algorithm. Because the success probability of the QPE depends on the overlap between approximate and exact wave functions, efficient methods to prepare accurate initial guess wave functions enough to have sufficiently large overlap with the exact ones are highly desired. Here, we propose a quantum algorithm to construct the wave function consisting of one configuration state function, which is suitable for the initial guess wave function in QPE-based FCI calculations of open-shell molecules, based on the addition theorem of angular momentum. The proposed quantum algorithm enables us to prepare the wave function consisting of an exponential number of Slater determinants only by a polynomial number of quantum operations.
Accelerating Full Configuration Interaction Calculations for Nuclear Structure
DOE Office of Scientific and Technical Information (OSTI.GOV)
Yang, Chao; Sternberg, Philip; Maris, Pieter
2008-04-14
One of the emerging computational approaches in nuclear physics is the full configuration interaction (FCI) method for solving the many-body nuclear Hamiltonian in a sufficiently large single-particle basis space to obtain exact answers - either directly or by extrapolation. The lowest eigenvalues and correspondingeigenvectors for very large, sparse and unstructured nuclear Hamiltonian matrices are obtained and used to evaluate additional experimental quantities. These matrices pose a significant challenge to the design and implementation of efficient and scalable algorithms for obtaining solutions on massively parallel computer systems. In this paper, we describe the computational strategies employed in a state-of-the-art FCI codemore » MFDn (Many Fermion Dynamics - nuclear) as well as techniques we recently developed to enhance the computational efficiency of MFDn. We will demonstrate the current capability of MFDn and report the latest performance improvement we have achieved. We will also outline our future research directions.« less
Fales, B Scott; Levine, Benjamin G
2015-10-13
Methods based on a full configuration interaction (FCI) expansion in an active space of orbitals are widely used for modeling chemical phenomena such as bond breaking, multiply excited states, and conical intersections in small-to-medium-sized molecules, but these phenomena occur in systems of all sizes. To scale such calculations up to the nanoscale, we have developed an implementation of FCI in which electron repulsion integral transformation and several of the more expensive steps in σ vector formation are performed on graphical processing unit (GPU) hardware. When applied to a 1.7 × 1.4 × 1.4 nm silicon nanoparticle (Si72H64) described with the polarized, all-electron 6-31G** basis set, our implementation can solve for the ground state of the 16-active-electron/16-active-orbital CASCI Hamiltonian (more than 100,000,000 configurations) in 39 min on a single NVidia K40 GPU.
GRILLIX: a 3D turbulence code based on the flux-coordinate independent approach
NASA Astrophysics Data System (ADS)
Stegmeir, Andreas; Coster, David; Ross, Alexander; Maj, Omar; Lackner, Karl; Poli, Emanuele
2018-03-01
The GRILLIX code is presented with which plasma turbulence/transport in various geometries can be simulated in 3D. The distinguishing feature of the code is that it is based on the flux-coordinate independent approach (FCI) (Hariri and Ottaviani 2013 Comput. Phys. Commun. 184 2419; Stegmeir et al 2016 Comput. Phys. Commun. 198 139). Cylindrical or Cartesian grids are used on which perpendicular operators are discretised via standard finite difference methods and parallel operators via a field line tracing and interpolation procedure (field line map). This offers a very high flexibility with respect to geometry, especially a separatrix with X-point(s) or a magnetic axis can be treated easily in contrast to approaches which are based on field aligned coordinates and suffer from coordinate singularities. Aiming finally for simulation of edge and scrape-off layer (SOL) turbulence, an isothermal electrostatic drift-reduced Braginskii model (Zeiler et al 1997 Phys. Plasmas 4 2134) has been implemented in GRILLIX. We present the numerical approach, which is based on a toroidally staggered formulation of the FCI, we show verification of the code with the method of manufactured solutions and show a benchmark based on a TORPEX blob experiment, previously performed by several edge/SOL codes (Riva et al 2016 Plasma Phys. Control. Fusion 58 044005). Examples for slab, circular, limiter and diverted geometry are presented. Finally, the results show that the FCI approach in general and GRILLIX in particular are viable approaches in order to tackle simulation of edge/SOL turbulence in diverted geometry.
Federal Register 2010, 2011, 2012, 2013, 2014
2013-08-14
... to Mexico a defense article, that is to wit: several AK-47 type rifles and magazines, without having..., or business organization related to Nino by affiliation, ownership, control or position of...
Use of Family Care Indicators and Their Relationship with Child Development in Bangladesh
Tofail, Fahmida; Hilaly, Afroza; Huda, Syed N.; Engle, Patrice; Grantham-McGregor, Sally M.
2010-01-01
Poor stimulation in the home is one of the main factors affecting the development of children living in poverty. The family care indicators (FCIs) were developed to measure home stimulation in large populations and were derived from the Home Observations for Measurement of the Environment (HOME). The FCIs were piloted with 801 rural Bangladeshi mothers of children aged 18 months. Five subscales were created: ‘play activities’ (PA), ‘varieties of play materials’ (VP), ‘sources of play materials’, ‘household books’, and ‘magazines and newspapers’ (MN). All subscales had acceptable short-term reliability. Mental and motor development of the children was assessed on the Bayley Scales of Infant Development and their language expression and comprehension by mothers’ report. After controlling for socioeconomic variables, VP and PA independently predicted four and three of the developmental outcomes respectively, and MN predicted both the Bayley scores. The FCI is promising as a survey-based indicator of the quality of children's home environment. PMID:20214083
Flight Crew Integration (FCI) ISS Crew Comments Database & Products Summary
NASA Technical Reports Server (NTRS)
Schuh, Susan
2016-01-01
This Crew Debrief Data provides support for design and development of vehicles, hardware, requirements, procedures, processes, issue resolution, lessons learned, consolidation and trending for current Programs; and much of the data is also used to support development of future Programs.
Risk based meat hygiene--examples on food chain information and visual meat inspection.
Ellerbroek, Lüppo
2007-08-01
The Regulation (EC) No. 854/2004 refers in particularly to a broad spectrum of official supervision of products of animal origin. The supervision should be based on the most current relevant information which is available. The proposal presented includes forms for implementation of Food Chain Information (FCI) as laid down in the Regulation (EC) No. 853/2004 as well as suggestions for the implementation of the visual inspection and criteria for a practical approach to assist the competent authority and the business operator. These suggestions are summarised in two forms including the FCI and practical information from the farm of origin as well as from the slaughterhouse needed for the competent authority to permit the visual meat inspection of fattening pigs. The requested information from the farm level include i.e. an animal loss rate during the fattening period and diagnostic findings of carcasses and respectively on organs of the animals during meat inspection procedure. The evaluation of findings in liver and pleura at the slaughterhouse level indicate a correlation to the general health status of the fattening conditions at farm level. The criteria developed are in principle suited for a "gold standard" of the health status of fattening pigs and the criteria may serve as practical implementation of the term Good Farming Practice in relation to consumer protection. Only for fattening pigs deriving from farms fulfilling this "gold standard" the visual meat inspection shall be permitted. It is proposed to integrate the two forms for FCI and additional information for authorisation of visual meat inspection for fattening pigs in the working document of the DG SANCO titled "Commission regulation of laying down specific rules on official controls for the inspection of meat" (SANCO/2696/2006).
Adrenocortical reserves in hyperthyroidism.
Agbaht, Kemal; Gullu, Sevim
2014-02-01
Explicit data regarding the changes in adrenocortical reserves during hyperthyroidism do not exist. We aimed to document the capability (response) of adrenal gland to secrete cortisol and DHEA-S during hyperthyroidism compared to euthyroidism, and to describe factors associated with these responses. A standard-dose (0.25 mg/i.v.) ACTH stimulation test was performed to the same patients before hyperthyroidism treatment, and after attainment of euthyroidism. Baseline cortisol (Cor(0)), DHEA-S (DHEA-S(0)), cortisol binding globulin (CBG), ACTH, calculated free cortisol (by Coolen's equation = CFC), free cortisol index (FCI), 60-min cortisol (Cor(60)), and DHEA-S (DHEA-S(60)), delta cortisol (ΔCor), delta DHEA-S (ΔDHEA-S) responses were evaluated. Forty-one patients [22 females, 49.5 ± 15.2 years old, 32 Graves disease, nine toxic nodular goiter] had similar Cor(0), DHEA-S(0), CFC, FCI, and DHEA-S(60) in hyperthyroid and euthyroid states. Cor(60), ΔCor, and ΔDHEA-S were lower in hyperthyroidism. In four (10 %) patients the peak ACTH-stimulated cortisol values were lower than 18 μg/dL. When the test repeated after attainment of euthyroidism, all of the patients had normal cortisol response. Regression analysis demonstrated an independent association of Cor(60) with free T3 in hyperthyroidism. However, the predictors of CFC, FCI, and DHEA-S levels were serum creatinine levels in hyperthyroidism, and both creatinine and transaminase levels in euthyroidism. ACTH-stimulated peak cortisol, delta cortisol, and delta DHEA-S levels are decreased during hyperthyroidism, probably due to increased turnover. Since about 10 % of the subjects with hyperthyroidism are at risk for adrenal insufficiency, clinicians dealing with Graves' disease should be alert to the possibility of adrenal insufficiency during hyperthyroid stage.
Guandalini, Adolfo; Di Girolamo, Nicola; Santillo, Daniele; Andreani, Valentina; Corvi, Roberta; Bandini, Marina; Peruccio, Claudio
2017-09-01
To describe the epidemiology and the types of eye disorders that are presumed to be inherited (PIED) in three large Italian dog breeds. Three large Italian dog breeds: Neapolitan Mastiff (FCI code: 197), Maremma Sheepdog (FCI code: 201), and Italian Corso dog (FCI code: 343). All dogs that underwent a complete ophthalmic examination between 1992 and 2012 were included in this prospective observational study. The prevalence of eye disorders with 95% confidence intervals was reported for presumed healthy dogs and for dogs referred to a veterinary center for an ophthalmic consultation. Univariate and multivariate logistic regression techniques were used to generate odds ratios. Of 605 dogs examined during the study period, 351 dogs were affected by at least one PIED (58%; 95% CI: 54-62%). The prevalence of PIED was significantly lower in dogs presented for ophthalmic examination (53.8%) as compared to presumed healthy dogs (62.2%)(OR: 1.4; 95% CI: 1.02-1.9; P = 0.037). Also after multivariate adjustment for the period of observation, the odds of Neapolitan Mastiff (92.1%; OR: 21.4; 95% CI: 11.1-41.4) and of Cane Corso (57.7%; OR: 2.5; 95% CI: 1.7-3.6) suffering a PIED were greater than the Maremma Sheepdog (35.4%). The most common PIED in each breed were entropion (24.3% of all the PIED) in the Neapolitan Mastiff, ectropion (36.6%) in the Corso dog, and cataract (27.9%) in the Maremma Sheepdog. Clinicians should be aware that three large Italian dog breeds frequently suffer PIED. Breed standards should be reconsidered, and breeding programs should be directed at limiting such disorders. © 2016 American College of Veterinary Ophthalmologists.
Benchmarking the FCI at Illinois State's Residential Life.
ERIC Educational Resources Information Center
Cain, David A.
1998-01-01
Describes how Office of Residential Life at one university met maintenance challenges facing its residential and food-service facilities. Discusses study conducted in 1992 to evaluate widespread management practices and addresses its findings, including six recommended practices. Examines development and implementation of facilities audit,…
The role of optical sensors in environmental applications
DOE Office of Scientific and Technical Information (OSTI.GOV)
Coulter, S.L.; Klainer, S.M.; Saini, D.
1995-12-31
With the ever increasing regulations and public consciousness on pollution control there is an increasing demand for effective monitors for field use. The specifications for an effective field monitor are that it be an in situ sensor which presents real time data; that data are received without sampling or testing artifacts; and, that there is a low cost associated with running multiple tests. Fiber optic chemical sensors have been designed by FCI Environmental, Inc. which meet these specifications for the detection of hydrocarbons in air, water or soil. Recent developments at FCI Environmental in the field of optic chemical sensorsmore » include the development of a chip level waveguide sensor. With the improvements in the size and function of the sensor, which impacts the manufacturability and cost of the sensors, this new technology presents new opportunities in the fields of in situ monitoring. Current activities in the development of this technology and applications of specific solid-state immunoassay are discussed.« less
Evidence on the coherence-pieces debate from the force concept inventory
NASA Astrophysics Data System (ADS)
Badagnani, D.; Petrucci, D.; Cappannini, O.
2018-01-01
We use force concept inventory (FCI) data to probe the consistency of commonsense physics as a knowledge system. The source of this data is the administration of the FCI to first-year science university students. Data quality was checked using item response theory and studying answer distributions for each question. We find apparently paradoxical results: depending on how the data is analysed, answers seem highly systematic or almost random-like. These results are compatible with others found in the literature and can be construed as arising either from a coherent knowledge system or from knowledge in pieces. We hypothesise as a possible source of this apparent contradiction that predictions and explanations use different resources: the former would use reflex, low-cost cognitive resources while the latter would involve conceptualisations. We show that the articulation of both resources may be crucial for expert thinking productivity (the ability to apply a theory to novel situations). We sketch some consequences of the proposed structure of commonsense thinking for teaching and further research.
Electrostatic ion-cyclotron waves in a nonuniform magnetic field
NASA Technical Reports Server (NTRS)
Cartier, S. L.; Dangelo, N.; Merlino, R. L.
1985-01-01
The properties of electrostatic ion-cyclotron waves excited in a single-ended cesium Q machine with a nonuniform magnetic field are described. The electrostatic ion-cyclotron waves are generated in the usual manner by drawing an electron current to a small exciter disk immersed in the plasma column. The parallel and perpendicular (to B) wavelengths and phase velocities are determined by mapping out two-dimensional wave phase contours. The wave frequency f depends on the location of the exciter disk in the nonuniform magnetic field, and propagating waves are only observed in the region where f is approximately greater than fci, where fci is the local ion-cyclotron frequency. The parallel phase velocity is in the direction of the electron drift. From measurements of the plasma properties along the axis, it is inferred that the electron drift velocity is not uniform along the entire current channel. The evidence suggests that the waves begin being excited at that axial position where the critical drift velocity is first exceeded, consistent with a current-driven excitation mechanism.
Analysis of Newton's Third Law Questions on the Force Concepts Inventory at Georgia State University
NASA Astrophysics Data System (ADS)
Oakley, Christopher; Thoms, Brian
2012-03-01
A major emphasis of the Physics Education Research program at Georgia State University is an effort to assess and improve students' understanding of Newton's Laws concepts. As part of these efforts the Force Concepts Inventory (FCI) has been given to students in both the algebra-based and calculus-based introductory physics sequences. In addition, the algebra-based introductory physics sequence is taught in both a SCALE-UP and a traditional lecture format. The results of the FCI have been analyzed by individual question and also as categorized by content. The analysis indicates that students in both algebra and calculus-based courses are successful at overcoming Aristotelian misconceptions regarding Newton's Third Law (N3) in the context of a stationary system. However, students are less successful on N3 questions involving objects in constant motion or accelerating. Interference between understanding of Newton's Second and Third Laws as well as other possible explanations for lower student performance on N3 questions involving non-stationary objects will be discussed.
Cookbook Procedures in MBL Physics Exercises.
ERIC Educational Resources Information Center
Royuk, Brent; Brooks, David W.
2003-01-01
Presents results of a controlled experiment comparing the conceptual mechanics learning gains as measured by the Force Concept Inventory (FCI) between two laboratory groups. One group completed cookbook labs while the other completed Interactive-Engagement (IE) labs in RealTime Physics. Suggests that laboratory activities should engage students in…
Condition of Florida Educational Facilities and Balancing Budgets
ERIC Educational Resources Information Center
Jones, Margaret Moore
2012-01-01
The purpose of this study was to examine if relationships existed between the condition of instructional facilities within Florida Coastal School District, as measured by the Facilities Condition Index (FCI), and enrollment percentages for special education students, African American students, Caucasian students, and students receiving free and…
DOT National Transportation Integrated Search
2008-09-01
In recent years, several research projects have been conducted to study the feasibility of increasing the allowable : compressive stress in concrete at prestress transfer, currently defined as 0.60f'ci in the AASHTO LRFD Bridge : Design Specification...
Under NPDES permit CO-R042005, the Federal Corrections Institution (FCI), Englewood is authorized to discharge from all MS4 outfalls to receiving waters which include Bear Creek, the South Platte River in the City of Lakewood, Jefferson County, Colo.
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2012-01-24
... Administrative Division Including On-Site Leased Workers From JFC Including Teleworkers Located Throughout the United States Reporting to Etters, PA; Amended Certification Regarding Eligibility To Apply for Worker.... 2273, the Department of Labor issued a Certification of Eligibility To Apply for Worker Adjustment...
76 FR 56471 - Membership of the Senior Executive Service Standing Performance Review Boards
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2011-09-13
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76 FR 11756 - Action Affecting Export Privileges; Ali Amirnazmi; Order Denying Export Privileges
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2011-03-03
... DEPARTMENT OF COMMERCE Bureau of Industry and Security Action Affecting Export Privileges; Ali Amirnazmi; Order Denying Export Privileges In the Matter of: Ali Amirnazmi, Register 63302-066, FCI... release and forfeit $81,277.37. Section 766.25 of the Export Administration Regulations (``EAR'' or...
Assessing Conceptual Knowledge for the Physics of Semiconductors
ERIC Educational Resources Information Center
Ene, Emanuela
2013-01-01
Following the trend in science and engineering education generated by the visible impact created by the Force Concept Inventory (FCI), the investigator developed a Physics of Semiconductors Concept Inventory (PSCI). PSCI fills the need of standardized concept tests for undergraduate education in photonics and electrical engineering. The structure…
Changing classroom designs: Easy; Changing instructors' pedagogies: Not so easy...
NASA Astrophysics Data System (ADS)
Lasry, Nathaniel; Charles, Elizabeth; Whittaker, Chris; Dedic, Helena; Rosenfield, Steven
2013-01-01
Technology-rich student-centered classrooms such as SCALE-UP and TEAL are designed to actively engage students. We examine what happens when instructors adopt the classroom but not the pedagogy that goes with it. We measure the effect of using socio-technological spaces on students' conceptual change and compare learning gains made in groups using different pedagogies (active learning vs. conventional instruction). We also correlate instructors' self-reported instructional approach (teacher-centered, student-centered) with their classes' normalized FCI gains. We find that technology-rich spaces are only effective when implemented with student-centered active pedagogies. In their absence, the technology-rich classroom is not significantly different from conventional teacher-centered classrooms. We also find that instructors' self-reported perception of student-centeredness accounts for a large fraction of the variance (r2 = 0.83) in their class' average normalized gain. Adopting student-centered pedagogies appears to be a necessary condition for the effective use of technology-rich spaces. However, adopting a new pedagogy seems more difficult than adopting new technology.
Modifying ``Six Ideas that Shaped Physics'' for a Life-Science major audience at Hope College
NASA Astrophysics Data System (ADS)
Mader, Catherine
2005-04-01
The ``Six Ideas That Shaped Physics'' textbook has been adapted and used for use in the algebra-based introductory physics course for non-physics science majors at Hope College. The results of the first use will be presented. Comparison of FCI for pre and post test scores will be compared with results from 8 years of results from both the algebra-based course and the calculus-based course (when we first adopted ``Six Ideas that Shaped Physcs" for the Calculus-based course). In addition, comparison on quantitative tests and homework problems with prior student groups will also be made. Because a large fraction of the audience in the algebra-based course is life-science majors, a goal of this project is to make the material relevant for these students. Supplemental materials that emphasize the connection between the life sciences and the fundamental physics concepts are being be developed to accompany the new textbook. Samples of these materials and how they were used (and received) during class testing will be presented.
Rasch Model Based Analysis of the Force Concept Inventory
ERIC Educational Resources Information Center
Planinic, Maja; Ivanjek, Lana; Susac, Ana
2010-01-01
The Force Concept Inventory (FCI) is an important diagnostic instrument which is widely used in the field of physics education research. It is therefore very important to evaluate and monitor its functioning using different tools for statistical analysis. One of such tools is the stochastic Rasch model, which enables construction of linear…
Uncovering the Hidden Meaning of Cross-Curriculum Comparison Results on the Force Concept Inventory
ERIC Educational Resources Information Center
Ding, Lin; Caballero, Marcos D.
2014-01-01
In a recent study, Caballero and colleagues conducted a large-scale evaluation using the Force Concept Inventory (FCI) to compare student learning outcomes between two introductory physics curricula: the Matter and Interactions (M&I) mechanics course and a pedagogically-reformed-traditional-content (PRTC) mechanics course. Using a conventional…
ERIC Educational Resources Information Center
Nieminen, Pasi; Savinainen, Antti; Viiri, Jouni
2010-01-01
This study investigates students' ability to interpret multiple representations consistently (i.e., representational consistency) in the context of the force concept. For this purpose we developed the Representational Variant of the Force Concept Inventory (R-FCI), which makes use of nine items from the 1995 version of the Force Concept Inventory…
High performance equipped mirrors for MTG FCI-TA and IRS-FTO
NASA Astrophysics Data System (ADS)
Kazakov, T.; San Juan, J. L.; Serrano, J.; Moreno, J.; González, D.; Rodríguez, G.; López, D.; Vázquez, E.; Aivar, J.; Motos, A.; Rahmouni, Christophe; Imperiali, Stephan; Fappani, Denis
2017-09-01
The Meteosat Third Generation (MTG) Programme is being realised through the well established and successful Cooperation between EUMETSAT and ESA. It will ensure the future continuity of MSG with the capabilities to enhance nowcasting, global and regional numerical weather prediction, climate and atmospheric chemistry monitoring data from Geostationary Orbit.
NIF Rugby High Foot Campaign from the design side
NASA Astrophysics Data System (ADS)
Leidinger, J.-P.; Callahan, D. A.; Berzak-Hopkins, L. F.; Ralph, J. E.; Amendt, P.; Hinkel, D. E.; Michel, P.; Moody, J. D.; Ross, J. S.; Rygg, J. R.; Celliers, P.; Clouët, J.-F.; Dewald, E. L.; Kaiser, P.; Khan, S.; Kritcher, A. L.; Liberatore, S.; Marion, D.; Masson-Laborde, P.-E.; Milovich, J. L.; Morice, O.; Pak, A. E.; Poujade, O.; Strozzi, D.; Hurricane, O. A.
2016-05-01
The NIF Rugby High Foot campaign results, with 8 shots to date, are compared with the 2D FCI2 design simulations. A special emphasis is placed on the predictive features and on those areas where some work is still required to achieve the best possible modelling of these MJ-class experiments.
Assessing the Impacts of a Hybrid ``Flipped'' Approach to University Physics.
NASA Astrophysics Data System (ADS)
Hughes, Chris; Paulson, Scott
2015-03-01
Over the course of several years, the physics faculty at James Madison University has been gradually reforming the introductory calculus-based physics sequence to a hybrid model using a ``flipped classroom'' approach. The content traditionally delivered during lecture was divided into approximately 150 short (5-10 minute) videos. For homework, students are assigned 3-5 videos to watch before each class session. These assignments are combined with in-class activities including gouger problem solving and the tutorials developed by the University of Washington group to provide the students with focused guidance on concepts and skills that students traditionally have left our classes not having mastered. For the fall semester course on mechanics, the Force Concept Inventory (FCI) was used to evaluate student outcomes. For the spring semester course on E&M and optics, the Conceptual Survey of Electricity and Magnetism (CSEM) was used. Student reaction to the course structure was generally positive though there were some complaints in the student evaluations at the end of each semester. However, a positive impact on student outcomes was observed based on the Hake gains on the FCI.
Financial capacity in dementia: a systematic review.
Sudo, Felipe Kenji; Laks, Jerson
2017-07-01
Financial capacity (FC) refers to a set of cognitively mediated abilities related to one's competency to manage propriety and income. Identifying intact from impaired FC in older persons with dementia is a growing concern in geriatric practice, but the best methods to assess this function still need to be determined. This study aims to review data on FC in dementia and on instruments used to assess this domain of capacity. Database search was performed in Medline, ISI Web of Knowledge, LILACS and PsycINFO. Studies that objectively assessed FC in dementia of any etiology were included. Of a total of 125 articles, 10 were included. Mild Alzheimer's Disease (AD) was associated with impaired complex FC abilities, namely checkbook management, bank statement management and financial judgment, but simple FC skills were preserved. Moderate AD was associated with impairment in all domains of FC. The Financial Capacity Instrument (FCI) was applied in most of the selected studies and correlated with neuropsychological and neuroimaging variables. Early dementia is associated with partially preserved FC. More validation studies using objective and evidence-based FC assessment tools, such as the FCI, are still needed.
Image Reconstruction from Data Collected with an Imaging Interferometer
NASA Astrophysics Data System (ADS)
DeSantis, Z. J.; Thurman, S. T.; Hix, T. T.; Ogden, C. E.
The intensity distribution of an incoherent source and the spatial coherence function at some distance away are related by a Fourier transform, via the Van Cittert-Zernike theorem. Imaging interferometers measure the spatial coherence of light propagated from the incoherently illuminated object by combining light from spatially separated points to measure interference fringes. The contrast and phase of the fringe are the amplitude and phase of a Fourier component of the source’s intensity distribution. The Fiber-Coupled Interferometer (FCI) testbed is a visible light, lab-based imaging interferometer designed to test aspects of an envisioned ground-based interferometer for imaging geosynchronous satellites. The front half of the FCI testbed consists of the scene projection optics, which includes an incoherently backlit scene, located at the focus of a 1 m aperture f/100 telescope. The projected light was collected by the back half of the FCI testbed. The collection optics consisted of three 11 mm aperture fiber-coupled telescopes. Light in the fibers was combined pairwise and dispersed onto a sensor to measure the interference fringe as a function of wavelength, which produces a radial spoke of measurements in the Fourier domain. The visibility function was sampled throughout the Fourier domain by recording fringe data at many different scene rotations and collection telescope separations. Our image reconstruction algorithm successfully produced images for the three scenes we tested: asymmetric pair of pinholes, U.S. Air Force resolution bar target, and satellite scene. The bar target reconstruction shows detail and resolution near the predicted resolution limit. This research was developed with funding from the Defense Advanced Research Projects Agency (DARPA). The views, opinions and/or findings expressed are those of the author(s) and should not be interpreted as reflecting the official views or policies of the Department of Defense or the U.S. Government.
Learning physics concepts as a function of colloquial language usage
NASA Astrophysics Data System (ADS)
Maier, Steven J.
Data from two sections of college introductory, algebra-based physics courses (n1 = 139, n2 = 91) were collected using three separate instruments to investigate the relationships between reasoning ability, conceptual gain and colloquial language usage. To obtain a measure of reasoning ability, Lawson's Classroom Test of Scientific Reasoning Ability (TSR) was administered once near mid-term for each sample. The Force Concept Inventory (FCI) was administered at the beginning and at the end of the term for pre- and post-test measures. Pre- and post-test data from the Mechanics Language Usage instrument were also collected in conjunction with FCI data collection at the beginning and end of the term. The MLU was developed specifically for this study prior to data collection, and results of a pilot test to establish validity and reliability are reported. T-tests were performed on the data collected to compare the means from each sample. In addition, correlations among the measures were investigated between the samples separately and combined. Results from these investigations served as justification for combining the samples into a single sample of 230 for performing further statistical analyses. The primary objective of this study was to determine if scientific reasoning ability (a function of developmental stage) and conceptual gains in Newtonian mechanics predict students' usages of "force" as measured by the MLU. Regression analyses were performed to evaluate these mediated relationships among TSR and FCI performance as a predictor of MLU performance. Statistically significant correlations and relationships existed among several of the measures, which are discussed at length in the body of the narrative. The findings of this research are that although there exists a discernable relationship between reasoning ability and conceptual change, more work needs to be done to establish improved quantitative measures of the role language usage has in developing understandings of course content.
(Wh-)Indeterminates, Free Choice, and Expressive Content in Korean
ERIC Educational Resources Information Center
Park, Eun-Hae
2009-01-01
This dissertation investigates the semantics and pragmatics of two types of free choice items (FCIs) in Korean which employ a wh-indeterminate (i.e., wh-morphology. e.g., "nwukwu" "who/someone") and a non-deictic-indefinite (e.g., "amwu") respectively in combination with a suffixal particle--"na." Both wh-indeterminate-based FCI (wh-(N)-"na")…
1987-06-22
of approaching problems) and specfic coping efforts (behavioral or intra- psychic action taken in situations that are aimed at reducing stress... unemployed . Military Medicine, 1981, 146, 10. * I McCubbin, H.I., Boss, P., Wilson, L. & Dahl, B. Family Coping Inventory WI (FCI). In Family
Federal Register 2010, 2011, 2012, 2013, 2014
2013-03-29
...'') was convicted of violating the International Emergency Economic Powers Act (50 U.S.C. 1701, et seq..., license, or order issued under the International Emergency Economic Powers Act (50 U.S.C. 1701-1706); 18.... Obtain from the Denied Person in the United States any item subject to the Regulations with knowledge or...
Validating Two Questions in the Force Concept Inventory with Subquestions
ERIC Educational Resources Information Center
Yasuda, Jun-ichiro; Taniguchi, Masa-aki
2013-01-01
In this study, we evaluate the structural validity of Q.16 and Q.7 in the Force Concept Inventory (FCI). We address whether respondents who answer Q.16 and Q.7 correctly actually have an understanding of the concepts of physics tested in the questions. To examine respondents' levels of understanding, we use subquestions that test them on concepts…
Federal Register 2010, 2011, 2012, 2013, 2014
2013-06-24
... exported from the United States to Mexico four military spec Interceptor body armor vests, which were... owned, possessed or controlled by the Denied Person, or service any item, of whatever origin, that is... subject to the Regulations are the foreign-produced direct product of U.S.-origin technology. V. This...
ERIC Educational Resources Information Center
Normandeau, Magdalen; Iyengar, Seshu; Newling, Benedict
2017-01-01
Concept inventories (CI) are validated, research-based, multiple-choice tests, which are widely used to assess the effectiveness of pedagogical practices in bringing about conceptual change. In order to be a useful diagnostic tool, a CI must reflect only the student understanding of the conceptual material. The Force Concept Inventory (FCI) is…
NEW BEDFORD, ACUSHNET RIVER ESTUARY WETLANDS ASSESSMENT REPORT, 04-01-1988, SDMS#51719
2013-06-11
... FCiR]:) liicoLocnc^i. ,;;ER(/1:c:i::,;; ii' !! 0 Tn r n |;:» i k ..• 1 :! o :n d ... [1 I'll II ill EMI! I ill •• I:! 1 ,!> C: k Di.ldk 4 (in 4 , ;• A n in l.ytical Me t: Hi ocll 1:1 4-11 ...
Langenbach, Andreas; Pinther, Melina; Krinner, Sebastian; Grupp, Sina; Ekkernkamp, Axel; Hennig, Friedrich F; Schulz-Drost, Stefan
2017-01-01
Background: Flail chest injuries (FCI) are associated with a high morbidity and mortality rate. As a concomitant clavicle fracture in FCI even worsens the outcome, the question is how can those costoclavicular injuries (CCI) be managed surgically. Methods: 11 patients with CCI were surgically treated by a locked plate osteosynthesis of the Clavicle and the underlying ribs through limited surgical approaches under general anesthesia. Patients were followed up after 2, 6, 12, 26 and 52 weeks. Results: All patients showed severe chest wall deformity due to severely displaced fractures of the ribs and the clavicle. They were suffering from pain and restriction of respiratory movements. The chest wall could be restored to normal shape in all cases with uneventful bone healing and a high patient convenience. Fractures of the clavicle and the second rib were managed through an innovative clavipectoral approach, the others through standard approaches to the anterolateral and the posterolateral chest wall. Two patients complained about numbness around the lateral approach and lasting periscapular pain. Conclusions: Surgical stabilization might be the appropriate therapy in CCI with dislocated fractures since they would cause severe deformity and loss of function of the chest wall and the shoulder. Celsius.
Seniority and orbital symmetry as tools for establishing a full configuration interaction hierarchy.
Bytautas, Laimutis; Henderson, Thomas M; Jiménez-Hoyos, Carlos A; Ellis, Jason K; Scuseria, Gustavo E
2011-07-28
We explore the concept of seniority number (defined as the number of unpaired electrons in a determinant) when applied to the problem of electron correlation in atomic and molecular systems. Although seniority is a good quantum number only for certain model Hamiltonians (such as the pairing Hamiltonian), we show that it provides a useful partitioning of the electronic full configuration interaction (FCI) wave function into rapidly convergent Hilbert subspaces whose weight diminishes as its seniority number increases. The primary focus of this study is the adequate description of static correlation effects. The examples considered are the ground states of the helium, beryllium, and neon atoms, the symmetric dissociation of the N(2) and CO(2) molecules, as well as the symmetric dissociation of an H(8) hydrogen chain. It is found that the symmetry constraints that are normally placed on the spatial orbitals greatly affect the convergence rate of the FCI expansion. The energy relevance of the seniority zero sector (determinants with all paired electrons) increases dramatically if orbitals of broken spatial symmetry (as those commonly used for Hubbard Hamiltonian studies) are allowed in the wave function construction. © 2011 American Institute of Physics
Predictors of performance in an ophthalmology residency program.
Alfawaz, Abdullah M; Al-Dahmash, Saad A
2016-06-01
To assess the value of current selection criteria and additional factors as predictors of performance in an ophthalmology residency training program. A retrospective study. Data were collected from the files of 166 residents who were collectively trained in an ophthalmology residency program from 2000 to 2013. The program's selection criteria included medical school grade point average (GPA), Saudi licensing examination (SLE) score, multiple-choice question ophthalmology selection (MCQ) examination score, and interview mark. Indicators of performance included average scores in the promotion examination for 4 years of training (average R), King Saud University fellowship examination (KSU) score, and Saudi Board in Ophthalmology examination (SBO) score. An average of KSU and SBO scores was also used as a performance indicator. Times of program completion and average performance score across all years in the residency program were used as second-level indicators of performance. There were strong correlations between the MCQ examination score and each training performance indicator (average R, KSU score, SBO score, and average of KSU and SBO scores; p = 0.002, 0.008, 0.05, and 0.002, respectively). The interview mark correlated well with average R (p = 0.001) but not with other indicators. The MCQ examination score and the interview mark were the only predictors of second-level indicators of performance (p = 0.009 and 0.029, respectively). The MCQ examination score and interview mark were the 2 best predictors of performance as an ophthalmology resident. GPA and SLE score were poor predictors of performance. Copyright © 2016 Canadian Ophthalmological Society. Published by Elsevier Inc. All rights reserved.
Revitalizing the Physics Department: The Use of Interactive Technologies to Improve Student Learning
NASA Astrophysics Data System (ADS)
Sheldon, Peter; Groover, Holly
2002-04-01
The Physics Department at Randolph-Macon Woman's College, a liberal arts women's college of 720, has traditionally turned out approximately 0.6 majors/year. We have invigorated the program by adding community (e.g. SPS, physical space, organized activities), adding a significant technical component (e.g. web-assisted and computerized labs and more technology in the classes [1]), and incorporating new learning techniques (JITT, Physlets, Peer Instruction and Cooperative Learning [2]). Students have responded well as evidenced by significant increases in enrollments as well as strong scores on the FCI. We have seen mixed results in the lab, but increased performance in the class, which is attributed to the interactive learning techniques that are being implemented through new technologies. In this presentation, we will discuss the implementation of the new curricular developments and the specific changes we have seen in student learning. [1] This work is supported in part by the NSF CCLI Program under grant DUE-9980890. Additional support has been from the Virginia Foundation of Private Colleges and AT&T. [2] See, for example, the project Galileo website http://galileo.harvard.edu for a description of all of these techniques.
Analyzing False Positives of Four Questions in the Force Concept Inventory
ERIC Educational Resources Information Center
Yasuda, Jun-ichro; Mae, Naohiro; Hull, Michael M.; Taniguchi, Masa-aki
2018-01-01
In this study, we analyze the systematic error from false positives of the Force Concept Inventory (FCI). We compare the systematic errors of question 6 (Q.6), Q.7, and Q.16, for which clearly erroneous reasoning has been found, with Q.5, for which clearly erroneous reasoning has not been found. We determine whether or not a correct response to a…
ERIC Educational Resources Information Center
Fulmer, Gavin W.
2015-01-01
This study examines the validity of 2 proposed learning progressions on the force concept when tested using items from the Force Concept Inventory (FCI). This is the first study to compare students' performance with respect to learning progressions both for force and motion and for Newton's third law in parallel. It is also among the first studies…
The Development of Alternative Food Cost Indexes
1974-11-01
Frozen frufts, vegetables , fruit juices , and cake mixes are added and the quantity of purchased bread increased in this FCI. Comment was made that some... Grain , Frozen Vegetables , Mixed, Frozen Beans, Green, Frozen Peaches, Canned Apples, Fresh Oranges, Fresh Strawberries, Frozen Juice , Pineapple...also falls to recognize such accepted food service practices as the use of frozen fruits , vegetables , and juices , or prepared cake mixes, Tj,e
European Immunology Congress (7th), Jerusalem, Israel.
1985-11-22
Zan-Bar, Israel. glycoprotein hormone which plays a key tivity, and the authors postulated that immunoregulatory role by inducing ac- IL-2 may have a...the expres- tion relationship of this important im- sion of 33B31 receptors, slows down the . munoregulatory hormone . turnover of these receptors once...Israel) have been studying the stimula- stimulation with monoclonal anti-idio- tion of growth by an FCy receptor ex- typic antibodies against
Exciting Alfven Waves using Modulated Electron Heating by High Power Microwaves
NASA Astrophysics Data System (ADS)
Wang, Yuhou; Gekelman, Walter; Pribyl, Patrick; van Compernolle, Bart; Papadopoulos, Konstantinos
2014-10-01
Experiments exploring the physics of ionospheric modification with intense perpendicular propagating waves (k-> ⊥B->0) on the Large Plasma Device (LaPD) at UCLA have been upgraded with the addition of a high power rapidly pulsed microwave source. The plasma is irradiated with ten pulses (250 kW X-band) near the upper-hybrid frequency. The pulses are modulated at a frequency of a fraction (0.1-1.0) of fci (ion cyclotron frequency). Based on a previous single-pulse experiment, the modulated electron heating may drive a large amplitude shear Alfvén wave (f
NASA Astrophysics Data System (ADS)
Zavala, Genaro; Alarcón, Hugo; Benegas, Julio
2007-08-01
In this contribution we describe a short development course for in-service physics teachers. The course structure and materials are based on the results of educational research, and its main objective is to provide in-service teachers with a first contact with the active learning strategy “Tutorials in Introductory Physics,” developed by the Physics Education Research Group at the University of Washington. The course was organized in a constructivist, active learning environment, so that teachers have first to experience, as regular students, the whole Tutorial sequence of activities: Tutorial pre-test, Tutorial, and Tutorial Homework. After each Tutorial, teachers reflect on, and recognize their own students’ learning difficulties, discussing their teaching experiences with their colleagues in small collaborative groups first and the whole class later. Finally they read and discuss specific Physics Education Research literature, where these learning difficulties have been extensively studied by researchers. At the beginning and at the end of the course the participants were given the conceptual multiple-choice test Force Concept Inventory (FCI). The pre-/post-instruction FCI data were presented as a practical example of the use of a research-based test widely used in educational research and in formative assessment processes designed to improve instruction.
Jung, Hye-Seon; Jeong, Si-Yeon; Yang, Jiwon; Kim, So-Dam; Zhang, Baojin; Yoo, Hyun Seung; Song, Sun U; Jeon, Myung-Shin; Song, Yun Seon
2016-10-28
Bone marrow-derived mesenchymal stem cells (MSCs) are used in stroke treatment despite the poor understanding of its mode of action. The immune suppressive and anti-inflammatory properties of MSCs possibly play important roles in regulating neuroinflammation after stroke. We investigated whether MSCs reduce the inflammatory complement component 3 (C3) levels, thus, providing neuroprotection during stroke. Mice were subjected to transient focal cerebral ischemia (tFCI), after which MSCs were intravenously injected. The infarct volume of the brain was reduced in MSC-injected tFCI mice, and C3 expression was significantly reduced in both the brain and the blood. Additionally, the profiles of other inflammatory mediators demonstrated neuroprotective changes in the MSCs-treated group. In order to analyze the effect of MSCs on neurons during cerebral ischemia, primary cortical neurons were co-cultured with MSCs under oxygen-glucose deprivation (OGD). Primary neurons co-cultured with MSCs exhibited reduced levels of C3 expression and increased protection against OGD, indicating that treatment with MSCs reduces excessive C3 expression and rescues ischemia-induced neuronal damage. Our finding suggests that reduction of C3 expression by MSCs can help to ameliorate ischemic brain damage, offering a new neuroprotective strategy in stroke therapy. Copyright © 2016. Published by Elsevier Ireland Ltd.
Canaza-Cayo, A W; Silva, M V G B; Cobuci, J A; Martins, M F; Lopes, P S
2016-04-04
The objective of this study was to evaluate the effects of inclusion or non-inclusion of short lactations and cow (CGG) and/or dam (DGG) genetic group on the genetic evaluation of 305-day milk yield (MY305), age at first calving (AFC), and first calving interval (FCI) of Girolando cows. Covariance components were estimated by the restricted maximum likelihood method in an animal model of single trait analyses. The heritability estimates for MY305, AFC, and FCI ranged from 0.23 to 0.29, 0.40 to 0.44, and 0.13 to 0.14, respectively, when short lactations were not included, and from 0.23 to 0.28, 0.39 to 0.43, and 0.13 to 0.14, respectively, when short lactations were included. The inclusion of short lactations caused little variation in the variance components and heritability estimates of traits, but their non-inclusion resulted in the re-ranking of animals. Models with CGG or DGG fixed effects had higher heritability estimates for all traits compared with models that consider these two effects simultaneously. We recommend using the model with fixed effects of CGG and inclusion of short lactations for the genetic evaluation of Girolando cattle.
12 CFR Appendix B to Subpart A of... - Conversion of Scorecard Measures into Score
Code of Federal Regulations, 2014 CFR
2014-01-01
... 327—Conversion of Scorecard Measures into Score 1. Weighted Average CAMELS Rating Weighted average CAMELS ratings between 1 and 3.5 are assigned a score between 25 and 100 according to the following equation: S = 25 + [(20/3) * (C 2 −1)], where: S = the weighted average CAMELS score; and C = the weighted...
12 CFR Appendix B to Subpart A of... - Conversion of Scorecard Measures into Score
Code of Federal Regulations, 2013 CFR
2013-01-01
... 327—Conversion of Scorecard Measures into Score 1. Weighted Average CAMELS Rating Weighted average CAMELS ratings between 1 and 3.5 are assigned a score between 25 and 100 according to the following equation: S = 25 + [(20/3) * (C 2 −1)], where: S = the weighted average CAMELS score; and C = the weighted...
12 CFR Appendix B to Subpart A of... - Conversion of Scorecard Measures into Score
Code of Federal Regulations, 2012 CFR
2012-01-01
... 327—Conversion of Scorecard Measures into Score 1. Weighted Average CAMELS Rating Weighted average CAMELS ratings between 1 and 3.5 are assigned a score between 25 and 100 according to the following equation: S = 25 + [(20/3) * (C 2 −1)], where: S = the weighted average CAMELS score; and C = the weighted...
Shen, Jay J; Xu, Yu; Staples, Shelley; Bolstad, Anne L
2014-07-01
To assess interpersonal skills of internationally educated nurses (IEN) while interacting with standardized patients. Participants included 52 IEN at two community hospitals in the southwestern region of the USA. Standardized patients were used to create patient-nurse encounter. Seventeen items in four domains ("skills in interviewing and collecting information"; "skills in counseling and delivering information"; "rapport"; and "personal manner") in an Interpersonal Skills (IPS) instrument were measured by a Likert scale 1-4 with 4 indicating the best performance. The average composite score per domain and scores of the 17 items were compared across the domains. On 10 of the 17 items, the nurses received scores under 3. Counseling with an average score of 2.10 and closure with an average score of 2.44 in domain 2, small talk with an average score of 2.06 in domain 3, and physical exam with average score of 2.21 in domain 4 were below 2.5. The average composite score of domain 1 was 3.54, significantly higher than those of domains 2-4 (2.77, 2.81, and 2.71, respectively). Age was moderately related to the average score per domain with every 10 year increase in age resulting in a 0.1 increase in the average score. Sex and country of origin showed mixed results. The interpersonal skills of IEN in three of the four domains need improvement. Well-designed educational programs may facilitate the improvement, especially in areas of small talk, counseling, closure, and physical exam. Future research should examine relationships between the IPS and demographics factors. © 2013 The Authors. Japan Journal of Nursing Science © 2013 Japan Academy of Nursing Science.
NASA Astrophysics Data System (ADS)
Kroneberger, Monika; Calleri, Andrea; Ulfers, Hendrik; Klossek, Andreas; Goepel, Michael
2017-09-01
The Meteosat Third Generation (MTG) program will ensure the continuity and enhancement of meteorological data from geostationary orbit as currently provided by the Meteosat Second Generation (MSG) system. OHB-Munich, as part of the core team consortium of the industrial prime contractor for the space segment Thales Alenia Space (France), is responsible for the Flexible Combined Imager - Telescope Assembly (FCI-TA) as well as the Infrared Sounder (IRS).
Measuring coding intensity in the Medicare Advantage program.
Kronick, Richard; Welch, W Pete
2014-01-01
In 2004, Medicare implemented a system of paying Medicare Advantage (MA) plans that gave them greater incentive than fee-for-service (FFS) providers to report diagnoses. Risk scores for all Medicare beneficiaries 2004-2013 and Medicare Current Beneficiary Survey (MCBS) data, 2006-2011. Change in average risk score for all enrollees and for stayers (beneficiaries who were in either FFS or MA for two consecutive years). Prevalence rates by Hierarchical Condition Category (HCC). Each year the average MA risk score increased faster than the average FFS score. Using the risk adjustment model in place in 2004, the average MA score as a ratio of the average FFS score would have increased from 90% in 2004 to 109% in 2013. Using the model partially implemented in 2014, the ratio would have increased from 88% to 102%. The increase in relative MA scores appears to largely reflect changes in diagnostic coding, not real increases in the morbidity of MA enrollees. In survey-based data for 2006-2011, the MA-FFS ratio of risk scores remained roughly constant at 96%. Intensity of coding varies widely by contract, with some contracts coding very similarly to FFS and others coding much more intensely than the MA average. Underpinning this relative growth in scores is particularly rapid relative growth in a subset of HCCs. Medicare has taken significant steps to mitigate the effects of coding intensity in MA, including implementing a 3.4% coding intensity adjustment in 2010 and revising the risk adjustment model in 2013 and 2014. Given the continuous relative increase in the average MA risk score, further policy changes will likely be necessary.
NASA Astrophysics Data System (ADS)
Hitt, G. W.; Isakovic, A. F.; Fawwaz, O.; Bawa'aneh, M. S.; El-Kork, N.; Makkiyil, S.; Qattan, I. A.
2014-12-01
We report on efforts to design the "Collaborative Workshop Physics" (CWP) instructional strategy to deliver the first interactive engagement (IE) physics course at Khalifa University of Science, Technology and Research (KU), United Arab Emirates (UAE). To our knowledge, this work reports the first calculus-based, introductory mechanics course on the Arabian Peninsula using physics education research (PER)-based instruction. A brief history and present context of general university and STEM teaching in the UAE is given. We present this secondary implementation (SI) as a case study of a novel context and use it to determine if PER-based instruction can be successfully implemented far from the cultural context of the primary developer and, if so, how might such SIs differ from SIs within the United States (U.S.) in terms of criteria for and risks to their success. With these questions in view, a prereform baseline comprised of Maryland Physics Expectations in Physics survey, Force Concept Inventory (FCI), course exam grades, and English language proficiency data are used to design a hybrid implementation of Cooperative Group Problem Solving. We find that for students with high English proficiency, normalized gain on FCI improves substantially, from ⟨g⟩=0.16±0.10 prereform to ⟨g⟩=0.47±0.08 in the CWP pilot (standard errors), indicating a successful SI. However, we also find evidence that normalized gains on FCI are strongly modulated by language proficiency and discuss likely causes. Regardless of language ability, problem-solving skill is also substantially improved and course drop-fail-withdrawal rates are cut from 50% to 24%. In particular, we find evidence in postreform student interviews that prior classroom experiences, and not broader cultural expectations about education, are the more significant cause of expectations that are at odds with the classroom norms of well-functioning PER-based instruction. We present this result as evidence that PER-based innovations can be implemented across great changes in cultural context, provided that the method is thoughtfully adapted in anticipation of context and culture-specific student expectations. This case study should be valuable for future reforms at KU, the broader Gulf region, and other institutions facing similar challenges involving SI of PER-based instruction outside the U.S.
NASA Astrophysics Data System (ADS)
Sheldon, Peter; Wellington, Tracey
2003-03-01
The Physics Department at Randolph-Macon Woman's College, a liberal arts women's college of 720, has traditionally turned out approximately 0.6 majors/year. We have invigorated the program by adding community (e.g. SPS, physical space, organized activities), adding a significant technical component (e.g. web-assisted and computer interfaced labs and more technology in the classes [1]), and incorporating new learning techniques (JITT, Physlets, Peer Instruction [2], Interactive DVD's, and using the Personal Response System [3]). Students have responded well as evidenced by significant increases in enrollments as well as strong scores on the FCI. As an offshoot of this original project supported by the NSF, we have applied some of these teaching methods to teach younger children and teachers of younger children. In this presentation, we will discuss the implementation of the new curricular developments and the specific changes we have seen and hope to see in student learning. [1] This work is supported in part by the NSF CCLI Program under grant DUE-9980890. [2] See, for example, the project Galileo website http://galileo.harvard.edu for a description of all of these techniques. [3] The Personal Response System is a wireless response system made by Educue, www.educue.com.
Zhao, Xiaohui; Oppler, Scott; Dunleavy, Dana; Kroopnick, Marc
2010-10-01
This study investigated the validity of four approaches (the average, most recent, highest-within-administration, and highest-across-administration approaches) of using repeaters' Medical College Admission Test (MCAT) scores to predict Step 1 scores. Using the differential predication method, this study investigated the magnitude of differences in the expected Step 1 total scores between MCAT nonrepeaters and three repeater groups (two-time, three-time, and four-time test takers) for the four scoring approaches. For the average score approach, matriculants with the same MCAT average are expected to achieve similar Step 1 total scores regardless of whether the individual attempted the MCAT exam one or multiple times. For the other three approaches, repeaters are expected to achieve lower Step 1 scores than nonrepeaters; for a given MCAT score, as the number of attempts increases, the expected Step 1 decreases. The effect was strongest for the highest-across-administration approach, followed by the highest-within-administration approach, and then the most recent approach. Using the average score is the best approach for considering repeaters' MCAT scores in medical school admission decisions.
Force Balance Allocation Model
1982-11-19
1 53V jiAiA 2 400 , I,4 v 1 fCI A., . " 3,. 54 QVA fA 8,1...Virginia 22209 19 November 1982 Technical Report CONTRACT No. DNA 001-82-C-0283 C’ APPROVED FOR PUBLIC RELEASE; DISTRIBUTION UNLIMITED. N" . 1 ’ CI" THIS...JAN 1 2 1984 DEFENSE NUCLEAR AGENCY Washington, DC 20305 ’-’C *" ’ . . . • mw Destroy this report when it is no longer needed. Do not return to
NASA Astrophysics Data System (ADS)
Wang, Yuhou; Gekelman, Walter; Pribyl, Patrick; van Compernolle, Bart; Papadopoulos, Konstantinos
2015-11-01
ELF / ULF waves are important in terrestrial radio communications but difficult to launch using ground-based structures due to their enormous wavelengths. In spite of this generation of such waves by field-aligned ionospheric heating modulation was first demonstrated using the HAARP facility. In the future heaters near the equator will be constructed and laboratory experiments on cross-field wave propagation could be key to the program's success. Here we report a detailed laboratory study conducted on the Large Plasma Device (LaPD) at UCLA. In this experiment, ten rapid pulses of high power microwaves (250 kW X-band) near the plasma frequency were launched transverse to the background field, and were modulated at a variable fraction (0.1-1.0) of fci. Along with bulk electron heating and density modification, the microwave pulses generated a population of fast electrons. The field-aligned current carried by the fast electrons acted as an antenna that radiated shear Alfvén waves. It was demonstrated that a controllable arbitrary frequency (f
On ancestors of dog breeds with focus on Weimaraner hunting dogs.
Kropatsch, R; Streitberger, K; Schulte-Middelmann, T; Dekomien, G; Epplen, J T
2011-02-01
Paternally inherited Y chromosomal markers and maternally inherited mitochondrial (mt) DNA sequences were investigated in 27 dog breeds (Canis familiaris), of which the Weimaraner hunting dog was studied in greater detail. Altogether, nine potentially polymorphic markers of the Y chromosome were examined as well as parts of the canine mt genome (1947 base pairs) in 111 male dogs and four wolves for comparison. Twenty Y chromosomal and fifty-nine mitochondrial DNA (mtDNA) haplotypes were identified in the canine breeds and wolves. In 34 Weimaraners, four distinct Y chromosomal haplotypes were observed as well as three mtDNA types thus reflecting at least four male and three female ancestors for the current population in Germany. Tracing patri- and matrilineages, several entries in the Weimaraner stud book cannot be reconciled with the male-only, Y chromosomal neither the female-only, mt inheritance patterns, respectively. The investigated breeds represent 9 of 10 groups defined by the Fédération Cynologique Internationale (FCI). The level of Y chromosomal and especially mtDNA diversity was immense considering the relatively small number of individuals investigated per breed. Unique haplotypes were found only in a few breeds and the wolf. Other haplotypes were shared among several breeds, also across different FCI groups, suggesting that these canine breeds had common male and female ancestors. © 2010 Blackwell Verlag GmbH.
Beaudeau, Pascal; Valdes, Danièle; Mouly, Damien; Stempfelet, Morgane; Seux, René
2010-03-01
This geographical study aimed to show natural or water-processing-related factors of faecal contamination incidents (FCIs) of drinking water in continental France. We defined a FCI as the occurrence of at least 20 colony-forming Escherichia coli or enterococci among all the 100 mL samples collected for regulatory purpose within one day from a given drinking water supply zone (SZ). We explored correlations between the standardized number of FCIs per département (N_Pols) and various indicators related to weather, land cover, topography, geology and water management for three SZ size sub-classes. In 2003-2004, 2,739 FCIs occurred in SZs supplying fewer than 2,000 people, mainly with simply disinfected groundwater. N_Pols correlates with four covariates: (1) precipitation; (2) the extension of the karst outcrops; (3) the extent of disinfection; and (4) catchment protection. One hundred millimetres of yearly excess in precipitation increases the pollution risk by 28-37%, depending on the sub-class. A 10% extension of the karst areas, a 10% increase of unprotected resources, or of SZs with no disinfection, could entail a higher risk of FCI by about 10%. The correlations are reproducible over the three sub-classes and corroborate expert appraisals. These results encourage the ongoing effort to generalize disinfection and catchment protection.
Have Nursing Home Compare quality measure scores changed over time in response to competition?
Castle, Nicholas G; Engberg, John; Liu, Darren
2007-06-01
Currently, the Centers for Medicare and Medicaid Services report on 15 Quality Measures (QMs) on the Nursing Home Compare (NHC) website. It is assumed that nursing homes are able to make improvements on these QMs, and in doing so they will attract more residents. In this investigation, we examine changes in QM scores, and whether competition and/or excess demand have influenced these change scores over a period of 1 year. Data come from NHC and the On-line Survey Certification And Recording (OSCAR) system. QM change scores are calculated using values from January 2003 to January 2004. A series of regression analyses are used to examine the association of competition and excess demand on QM scores. Eight QMs show an average decrease in scores (ie, better quality) and six QMs show an average increase in scores (ie, worse quality). However, for 13 of the 14 QMs these average changes averaged less than 1%. The regression analyses show an association between higher competition and improving QM scores and an association between lower occupancy and improving QM scores. As would be predicted based on the market-driven mechanism underlying quality improvements using report cards, we show that it is in the most competitive markets and those with the lowest average occupancy rates that improvements in the QM scores are more likely.
The Influence of Protein Supplementation on Muscle Hypertrophy
NASA Astrophysics Data System (ADS)
Fardi, A.; Welis, W.
2018-04-01
The problem of this study was the lack of knowledge about nutrition, so the use of protein supplements to support the occurrence of muscle hypertrophy is not optimal. The use of natural supplements is a substitute of the manufacturer's supplements. The purpose of this study was to determine the effect of natural protein supplementation to muscle hypertrophy.The method of the research was a quasi experiment. There are 26 subject and were divided two group. Instrument of this research is to use tape measure and skinfold to measure muscle rim and thickness of fat in arm and thigh muscle. Then to calculate the circumference of the arm and thigh muscles used the formula MTC - (3.14 x TSF). MTC is the arm muscle or thigh muscle and TSF is the thickness of the muscles of the arm or thigh muscles. Data analysis technique used was t test at 5% significant level. The result of the research showed that average score of arm muscle hypertrophy at pretest control group was 255.61 + 17.69 mm and posttest average score was 263.48.58 + 17.21 mm and average score of thigh muscle hypertrophy at pretest control group was 458.32 + 8.72 mm and posttest average score was 468.78 + 11.54 mm. Average score of arm muscle hypertrophy at pretest experiment group was 252.67 + 16.05 mm and posttest average score was 274.58 ± 16.89 mm and average score of thigh muscle hypertrophy at pretest experiment group was 459.49 ± 6.99 mm and posttest average score was 478.70 + 9.05 mm. It can be concluded that there was a significant effect of natural protein supplementation on muscle hypertrophy.
Foxton, C R; Black, D; Muhlschlegel, J; Jardine, A
2014-12-01
To assess whether there is a difference in ENT knowledge amongst nurses caring for patients on a dedicated ENT ward and nurses caring for ENT patients in a similar hospital without a dedicated ENT ward. A test of theoretical knowledge of ENT nursing care was devised and administered to nurses working on a dedicated ENT ward and then to nurses working on generic non-subspecialist wards regularly caring for ENT patients in a hospital without a dedicated ENT ward. The test scores were then compared. A single specialist ENT/Maxillo-Facial/Opthalmology ward in hospital A and 3 generic surgical wards in hospital B. Both hospitals are comparable district general hospitals in the south west of England. Nursing staff working in hospital A and hospital B on the relevant wards were approached during the working day. 11 nurses on ward 1, 10 nurses on ward 2, 11 nurses on ward 3 and 10 nurses on ward 4 (the dedicated ENT ward). Each individual test score was used to generate an average score per ward and these scores compared to see if there was a significant difference. The average score out of 10 on ward 1 was 6.8 (+/-1.6). The average score on ward two was 4.8 (+/-1.6). The average score on ward three was 5.5 (+/-2.1). The average score on ward 4, which is the dedicated ENT ward, was 9.7 (+/-0.5). The differences in average test score between the dedicated ENT ward and all of the other wards are statistically significant. Nurses working on a dedicated ENT ward have an average higher score in a test of knowledge than nurses working on generic surgical wards. This difference is statistically significant and persists despite banding or training. © 2014 John Wiley & Sons Ltd.
Lesson plan profile of senior high school biology teachers in Subang
NASA Astrophysics Data System (ADS)
Rohayati, E.; Diana, S. W.; Priyandoko, D.
2018-05-01
Lesson plan have important role for biology teachers in teaching and learning process. The aim of this study was intended to gain an overview of lesson plan of biology teachers’ at Senior High Schools in Subang which were the members of biology teachers association in Subang. The research method was descriptive method. Data was collected from 30 biology teachers. The result of study showed that lesson plan profile in terms of subject’s identity had good category with 83.33 % of average score. Analysis on basic competence in fair category with 74.45 % of average score. The compatibility of method/strategy was in fair category with average score 72.22 %. The compatibility of instrument, media, and learning resources in fair category with 71.11 % of average score. Learning scenario was in good category with 77.00 % of average score. The compatibility of evaluation was in low category with 56.39 % of average score. It can be concluded that biology teachers in Subang were good enough in making lesson plan, however in terms of the compatibility of evaluation needed to be fixed. Furthermore, teachers’ training for biology teachers’ association was recommended to increasing teachers’ skill to be professional teachers.
2008-05-22
power via a coup. 2. Historical role is the modernization of society. 3. The bourgeoisie trades its political rights and power in exchange for the...years at Miami’s Federal Correctional Institution (FCI).60 General Noriega is now to be sent to France where he was convicted for money laundering...2165809,00.html (accessed December 22, 2007). 61 Cristina Machin, interview by author, Leavenworth, KS., October 7, 2007. In 1987 France gave General
Communication Interface for a System of Distributed Processes.
1981-03-03
Tnterprocess Communication Service Apnlied in a nistrihuted Data Rase System" (submitte to VCI, Miinchen 10/Rl) and "The Trans- port Service of an...1980 4) B6’-hme, K.: An Tnternrocess Communication Service Applied in a Distribut.1 Data Pase System. Submitted to FCI, tliinchen, Oct. 3091l 5) ribme...K(. The "ransport Service of an Tnterprocess Commiunication Systell. Snbmitte to 7th Data Cor’nunicatinrin rooi1 !’exico City, Oct. 1091 ’"’h~e oi1
[Systematic Review of the Methodology Quality in Lung Cancer Screening Guidelines].
Li, Jiang; Su, Kai; Li, Fang; Tang, Wei; Huang, Yao; Wang, Le; Huang, Huiyao; Shi, Jufang; Dai, Min
2016-10-20
Lung cancer is the most common malignancy and screening can decrease the mortality. High quality screening guideline is necessary and important for effective work. Our study is to review and evaluate the basic characteristics and methodology quality of the current global lung cancer screening guidelines so as to provide useful information for domestic study in the future. Electronic searches were done in English and Chinese databases including PubMed, the Cochrane Library, Web of Science, Embase, CNKI, CBM, Wanfang, and some cancer official websites. Articles were screened according to the predefined inclusion and exclusion criteria by two researchers. The quality of guidelines was assessed by AGREE II. At last, a total of 11 guidelines with methodology were included. The guidelines were issued mainly by USA (81%). Canada and China developed one, respectively. As for quality, the average score in the "Scale and objective" of all guidelines was 80, the average score in the "Participants" was 52, the average score in the "rigorism" was 50, the average score in the "clarity" was 76, the average score in the "application" was 43 and the average score in the "independence" was 59. The highest average score was found in 2013 and 2015. Canada guideline had higher quality in six domains. 7 guidelines were evaluated as A level. The number of clinical guidelines showed an increasing trend. Most guidelines were issued by developed countries with heavy burden. Multi-country contribution to one guideline was another trend. Evidence-based methodology was accepted globally in the guideline development.
Syntax and reading comprehension: a meta-analysis of different spoken-syntax assessments.
Brimo, Danielle; Lund, Emily; Sapp, Alysha
2018-05-01
Syntax is a language skill purported to support children's reading comprehension. However, researchers who have examined whether children with average and below-average reading comprehension score significantly different on spoken-syntax assessments report inconsistent results. To determine if differences in how syntax is measured affect whether children with average and below-average reading comprehension score significantly different on spoken-syntax assessments. Studies that included a group comparison design, children with average and below-average reading comprehension, and a spoken-syntax assessment were selected for review. Fourteen articles from a total of 1281 reviewed met the inclusionary criteria. The 14 articles were coded for the age of the children, score on the reading comprehension assessment, type of spoken-syntax assessment, type of syntax construct measured and score on the spoken-syntax assessment. A random-effects model was used to analyze the difference between the effect sizes of the types of spoken-syntax assessments and the difference between the effect sizes of the syntax construct measured. There was a significant difference between children with average and below-average reading comprehension on spoken-syntax assessments. Those with average and below-average reading comprehension scored significantly different on spoken-syntax assessments when norm-referenced and researcher-created assessments were compared. However, when the type of construct was compared, children with average and below-average reading comprehension scored significantly different on assessments that measured knowledge of spoken syntax, but not on assessments that measured awareness of spoken syntax. The results of this meta-analysis confirmed that the type of spoken-syntax assessment, whether norm-referenced or researcher-created, did not explain why some researchers reported that there were no significant differences between children with average and below-average reading comprehension, but the syntax construct, awareness or knowledge, did. Thus, when selecting how to measure syntax among school-age children, researchers and practitioners should evaluate whether they are measuring children's awareness of spoken syntax or knowledge of spoken syntax. Other differences, such as participant diagnosis and the format of items on the spoken-syntax assessments, also were discussed as possible explanations for why researchers found that children with average and below-average reading comprehension did not score significantly differently on spoken-syntax assessments. © 2017 Royal College of Speech and Language Therapists.
Li, Zhijian; Hou, Jiale; Lu, Lin; Tang, Shenglan; Ma, Jin
2012-01-01
Health care system reform is a major issue in many countries and therefore how to evaluate the effects of changes is incredibly important. This study measured residents' satisfaction with community health care service in Shanghai, China, and aimed to evaluate the effect of recent health care system reform. Face-to-face interviews were performed with a stratified random sample of 2212 residents of the Shanghai residents using structured questionnaires. In addition, 972 valid responses were retrieved from internet contact. Controlling for sex, age, income and education, the study used logistic regression modeling to analyze factors associated with satisfaction and to explain the factors that affect the residents' satisfaction. Comparing current attitudes with those held at the initial implementation of the reform in this investigation, four dimensions of health care were analyzed: 1) the health insurance system; 2) essential drugs; 3) basic clinical services; and 4) public health services. Satisfaction across all dimensions improved since the reform was initiated, but differences of satisfaction level were found among most dimensions and groups. Residents currently expressed greater satisfaction with clinical service (average score=3.79, with 5 being most satisfied) and the public health/preventive services (average score=3.62); but less satisfied with the provision of essential drugs (average score=3.20) and health insurance schemes (average score=3.23). The disadvantaged groups (the elderly, the retired, those with only an elementary education, those with lower incomes) had overall poorer satisfaction levels on these four aspects of health care (P<0.01). 25.39% of the respondents thought that their financial burden had increased and 38.49% thought that drugs had become more expensive. The respondents showed more satisfaction with the clinical services (average score=3.79) and public health services/interventions (average score=3.79); and less satisfaction with the health insurance system (average score=3.23) and the essential drug system (average score=3.20). Disadvantaged groups showed lower satisfaction levels overall relative to non-disadvantaged groups.
Examining evolving performance on the Force Concept Inventory using factor analysis
NASA Astrophysics Data System (ADS)
Semak, M. R.; Dietz, R. D.; Pearson, R. H.; Willis, C. W.
2017-06-01
The application of factor analysis to the Force Concept Inventory (FCI) has proven to be problematic. Some studies have suggested that factor analysis of test results serves as a helpful tool in assessing the recognition of Newtonian concepts by students. Other work has produced at best ambiguous results. For the FCI administered as a pre- and post-test, we see factor analysis as a tool by which the changes in conceptual associations made by our students may be gauged given the evolution of their response patterns. This analysis allows us to identify and track conceptual linkages, affording us insight as to how our students have matured due to instruction. We report on our analysis of 427 pre- and post-tests. The factor models for the pre- and post-tests are explored and compared along with the methodology by which these models were fit to the data. The post-test factor pattern is more aligned with an expert's interpretation of the questions' content, as it allows for a more readily identifiable relationship between factors and physical concepts. We discuss this evolution in the context of approaching the characteristics of an expert with force concepts. Also, we find that certain test items do not significantly contribute to the pre- or post-test factor models and attempt explanations as to why this is so. This may suggest that such questions may not be effective in probing the conceptual understanding of our students.
Pair 2-electron reduced density matrix theory using localized orbitals
NASA Astrophysics Data System (ADS)
Head-Marsden, Kade; Mazziotti, David A.
2017-08-01
Full configuration interaction (FCI) restricted to a pairing space yields size-extensive correlation energies but its cost scales exponentially with molecular size. Restricting the variational two-electron reduced-density-matrix (2-RDM) method to represent the same pairing space yields an accurate lower bound to the pair FCI energy at a mean-field-like computational scaling of O (r3) where r is the number of orbitals. In this paper, we show that localized molecular orbitals can be employed to generate an efficient, approximately size-extensive pair 2-RDM method. The use of localized orbitals eliminates the substantial cost of optimizing iteratively the orbitals defining the pairing space without compromising accuracy. In contrast to the localized orbitals, the use of canonical Hartree-Fock molecular orbitals is shown to be both inaccurate and non-size-extensive. The pair 2-RDM has the flexibility to describe the spectra of one-electron RDM occupation numbers from all quantum states that are invariant to time-reversal symmetry. Applications are made to hydrogen chains and their dissociation, n-acene from naphthalene through octacene, and cadmium telluride 2-, 3-, and 4-unit polymers. For the hydrogen chains, the pair 2-RDM method recovers the majority of the energy obtained from similar calculations that iteratively optimize the orbitals. The localized-orbital pair 2-RDM method with its mean-field-like computational scaling and its ability to describe multi-reference correlation has important applications to a range of strongly correlated phenomena in chemistry and physics.
Bioliteracy and Teaching Efficacy: What Biologists Can Learn from Physicists
Klymkowsky, Michael W.; Garvin-Doxas, Kathy; Zeilik, Michael
2003-01-01
The introduction of the Force Concept Inventory (FCI) by David Hestenes and colleagues in 1992 produced a remarkable impact within the community of physics teachers. An instrument to measure student comprehension of the Newtonian concept of force, the FCI demonstrates that active learning leads to far superior student conceptual learning than didactic lectures. Compared to a working knowledge of physics, biological literacy and illiteracy have an even more direct, dramatic, and personal impact. They shape public research and reproductive health policies, the acceptance or rejection of technological advances, such as vaccinations, genetically modified foods and gene therapies, and, on the personal front, the reasoned evaluation of product claims and lifestyle choices. While many students take biology courses at both the secondary and the college levels, there is little in the way of reliable and valid assessment of the effectiveness of biological education. This lack has important consequences in terms of general bioliteracy and, in turn, for our society. Here we describe the beginning of a community effort to define what a bioliterate person needs to know and to develop, validate, and disseminate a tiered series of instruments collectively known as the Biology Concept Inventory (BCI), which accurately measures student comprehension of concepts in introductory, genetic, molecular, cell, and developmental biology. The BCI should serve as a lever for moving our current educational system in a direction that delivers a deeper conceptual understanding of the fundamental ideas upon which biology and biomedical sciences are based. PMID:14506504
NASA Astrophysics Data System (ADS)
Bernhardt, Paul; Selcher, Craig A.
High Power electromagnetic (EM) waves transmitted from the HAARP facility in Alaska can excite low frequency electrostatic waves by several processes including (1) direct magnetized stimulated Brillouin scatter (MSBS) and (2) parametric decay of high frequency electrostatic waves into electron and ion Bernstein waves. Either an ion acoustic (IA) wave with a frequency less than the ion cyclotron frequency (fCI) or an electrostatic ion cyclotron (EIC) wave just above fCI can be produced by MSBS. The coupled equations describing the MSBS instabil-ity show that the production of both IA and EIC waves is strongly influenced by the wave propagation direction relative to the background magnetic field. Experimental observations of stimulated electromagnetic emissions (SEE) using the HAARP transmitter in Alaska have confirmed the theoretical predictions that only IA waves are excited for propagation along the magnetic zenith and that EIC waves can only be detected with oblique propagation angles. The electron temperature in the heated plasma is obtained from the IA spectrum offsets from the pump frequency. The ion composition can be determined from the measured EIC frequency. Near the second harmonic of the electron cyclotron frequency, the EM pump wave is converted into an electron Bernstein (EB) wave that decays into another EB wave and an ion Bernstein (IB) wave. Strong cyclotron resonance with the EB wave leads to acceleration of the electrons. Ground based SEE observations are related to the theory of low-frequency electrostatic wave generation.
Yao, Ruan; Li-Ying, Wang; Ting-Jun, Zhu; Men-Bao, Qian; Chun-Li, Cao; Yu-Wan, Hao; Tian, Tian; Shi-Zhu, Li
2017-03-01
To assess the theoretical knowledge and practical skills of parasitic diseases among technicians from disease control and prevention institutions. The Assessment on National Parasitic Disease Control and Prevention Techniques was organized in September, 2015. Together, 124 subjects from disease control and prevention institutions at province, prefecture or county levels in 31 provinces joined the assessment. A database was built consisting of subjects' basic information and assessment scores. Statistical analysis was used to analyze the scores by gender, age, professional title, institutions and places of participants. The average total score of all the subjects was 123.3, with a passing rate of 57.3%. The average scores of male subjects (48 subjects) and female subjects (76 subjects) were 125.9 and 121.7 respectively; the average scores of the subjects aged under 30 years (57 subjects), between 30 and 40 years (61 subjects) and above 40 years (6 subjects) were 119.6, 128.1 and 111.2 respectively; the average scores of persons with junior (94 subjects), intermediate (28 subjects) and senior (2 subjects) professional titles were 119.2, 135.9 and 140.5 respectively. The average theoretical assessment score of all the subjects was 61.9, with a passing rate of 62.9%. The average practical skill assessment score of all the subjects was 61.4, with a passing rate of 58.1%. The theoretical assessment results range widely. The theoretical knowledge results of technicians from disease control and prevention institutions are low in general. Therefore, the specific training based on daily work needs to be enhanced.
ERIC Educational Resources Information Center
National Center for Education Statistics, 2011
2011-01-01
This one-page report presents overall results, achievement level percentages and average score results, scores at selected percentiles, average scores for district and large cities, results for student groups (school race, gender, and eligibility for National School Lunch Program) in 2011, and score gaps for student groups. In 2011, the average…
ERIC Educational Resources Information Center
National Center for Education Statistics, 2011
2011-01-01
This one-page report presents overall results, achievement level percentages and average score results, scores at selected percentiles, average scores for district and large cities, results for student groups (school race, gender, and eligibility for National School Lunch Program) in 2011, and score gaps for student groups. In 2011, the average…
ERIC Educational Resources Information Center
National Center for Education Statistics, 2011
2011-01-01
This one-page report presents overall results, achievement level percentages and average score results, scores at selected percentiles, average scores for district and large cities, results for student groups (school race, gender, and eligibility for National School Lunch Program) in 2011, and score gaps for student groups. In 2011, the average…
ERIC Educational Resources Information Center
National Center for Education Statistics, 2011
2011-01-01
This one-page report presents overall results, achievement level percentages and average score results, scores at selected percentiles, average scores for district and large cities, results for student groups (school race, gender, and eligibility for National School Lunch Program) in 2011, and score gaps for student groups. In 2011, the average…
ERIC Educational Resources Information Center
National Center for Education Statistics, 2011
2011-01-01
This one-page report presents overall results, achievement level percentages and average score results, scores at selected percentiles, average scores for district and large cities, results for student groups (school race, gender, and eligibility for National School Lunch Program) in 2011, and score gaps for student groups. In 2011, the average…
ERIC Educational Resources Information Center
National Center for Education Statistics, 2011
2011-01-01
This one-page report presents overall results, achievement level percentages and average score results, scores at selected percentiles, average scores for district and large cities, results for student groups (school race, gender, and eligibility for National School Lunch Program) in 2011, and score gaps for student groups. In 2011, the average…
ERIC Educational Resources Information Center
National Center for Education Statistics, 2011
2011-01-01
This one-page report presents overall results, achievement level percentages and average score results, scores at selected percentiles, average scores for district and large cities, results for student groups (school race, gender, and eligibility for National School Lunch Program) in 2011, and score gaps for student groups. In 2011, the average…
ERIC Educational Resources Information Center
National Center for Education Statistics, 2011
2011-01-01
This one-page report presents overall results, achievement level percentages and average score results, scores at selected percentiles, average scores for district and large cities, results for student groups (school race, gender, and eligibility for National School Lunch Program) in 2011, and score gaps for student groups. In 2011, the average…
ERIC Educational Resources Information Center
National Center for Education Statistics, 2011
2011-01-01
This one-page report presents overall results, achievement level percentages and average score results, scores at selected percentiles, average scores for district and large cities, results for student groups (school race, gender, and eligibility for National School Lunch Program) in 2011, and score gaps for student groups. In 2011, the average…
ERIC Educational Resources Information Center
National Center for Education Statistics, 2011
2011-01-01
This one-page report presents overall results, achievement level percentages and average score results, scores at selected percentiles, average scores for district and large cities, results for student groups (school race, gender, and eligibility for National School Lunch Program) in 2011, and score gaps for student groups. In 2011, the average…
ERIC Educational Resources Information Center
National Center for Education Statistics, 2011
2011-01-01
This one-page report presents overall results, achievement level percentages and average score results, scores at selected percentiles, average scores for district and large cities, results for student groups (school race, gender, and eligibility for National School Lunch Program) in 2011, and score gaps for student groups. In 2011, the average…
ERIC Educational Resources Information Center
National Center for Education Statistics, 2011
2011-01-01
This one-page report presents overall results, achievement level percentages and average score results, scores at selected percentiles, average scores for district and large cities, results for student groups (school race, gender, and eligibility for National School Lunch Program) in 2011, and score gaps for student groups. In 2011, the average…
ERIC Educational Resources Information Center
National Center for Education Statistics, 2011
2011-01-01
This one-page report presents overall results, achievement level percentages and average score results, scores at selected percentiles, average scores for district and large cities, results for student groups (school race, gender, and eligibility for National School Lunch Program) in 2011, and score gaps for student groups. In 2011, the average…
ERIC Educational Resources Information Center
National Center for Education Statistics, 2011
2011-01-01
This one-page report presents overall results, achievement level percentages and average score results, scores at selected percentiles, average scores for district and large cities, results for student groups (school race, gender, and eligibility for National School Lunch Program) in 2011, and score gaps for student groups. In 2011, the average…
ERIC Educational Resources Information Center
National Center for Education Statistics, 2011
2011-01-01
This one-page report presents overall results, achievement level percentages and average score results, scores at selected percentiles, average scores for district and large cities, results for student groups (school race, gender, and eligibility for National School Lunch Program) in 2011, and score gaps for student groups. In 2011, the average…
ERIC Educational Resources Information Center
National Center for Education Statistics, 2011
2011-01-01
This one-page report presents overall results, achievement level percentages and average score results, scores at selected percentiles, average scores for district and large cities, results for student groups (school race, gender, and eligibility for National School Lunch Program) in 2011, and score gaps for student groups. In 2011, the average…
ERIC Educational Resources Information Center
National Center for Education Statistics, 2011
2011-01-01
This one-page report presents overall results, achievement level percentages and average score results, scores at selected percentiles, average scores for district and large cities, results for student groups (school race, gender, and eligibility for National School Lunch Program) in 2011, and score gaps for student groups. In 2011, the average…
ERIC Educational Resources Information Center
National Center for Education Statistics, 2011
2011-01-01
This one-page report presents overall results, achievement level percentages and average score results, scores at selected percentiles, average scores for district and large cities, results for student groups (school race, gender, and eligibility for National School Lunch Program) in 2011, and score gaps for student groups. In 2011, the average…
ERIC Educational Resources Information Center
Guzeller, Cem Oktay
2012-01-01
In this research, the relationship between written exam scores of science and technology class of 6th, 7th, and 8th grades, project, participation in class activities and performance work, year-end academic success point averages and sub-test raw scores of LDT science of 6th, 7th and 8th grades. Academic success point averages were used as…
The Effect of Paid Leave on Maternal Mental Health.
Mandal, Bidisha
2018-06-07
Objectives I examined the relationship between paid maternity leave and maternal mental health among women returning to work within 12 weeks of childbirth, after 12 weeks, and those returning specifically to full-time work within 12 weeks of giving birth. Methods I used data from 3850 women who worked full-time before childbirth from the Early Childhood Longitudinal Study-Birth Cohort. I utilized propensity score matching techniques to address selection bias. Mental health was measured using the Center for Epidemiologic Studies Depression (CESD) scale, with high scores indicating greater depressive symptoms. Results Returning to work after giving birth provided psychological benefits to women who used to work full-time before childbirth. The average CESD score of women who returned to work was 0.15 standard deviation (p < 0.01) lower than the average CESD score of all women who worked full-time before giving birth. Shorter leave, on the other hand, was associated with adverse effects on mental health. The average CESD score of women who returned within 12 weeks of giving birth was 0.13 standard deviation higher (p < 0.05) than the average CESD score of all women who rejoined labor market within 9 months of giving birth. However, receipt of paid leave was associated with an improved mental health outcome. Among all women who returned to work within 12 weeks of childbirth, those women who received some paid leave had a 0.17 standard deviation (p < 0.05) lower CESD score than the average CESD score. The result was stronger for women who returned to full-time work within 12 weeks of giving birth, with a 0.32 standard deviation (p < 0.01) lower CESD score than the average CESD score. Conclusions The study revealed that the negative psychological effect of early return to work after giving birth was alleviated when women received paid leave.
Bayesian Model Averaging for Propensity Score Analysis
ERIC Educational Resources Information Center
Kaplan, David; Chen, Jianshen
2013-01-01
The purpose of this study is to explore Bayesian model averaging in the propensity score context. Previous research on Bayesian propensity score analysis does not take into account model uncertainty. In this regard, an internally consistent Bayesian framework for model building and estimation must also account for model uncertainty. The…
Advanced Electron Optics for Vibrational Spectroscopy.
1987-10-02
observations of vibrational losses measured 0 2z b n t l o a i r u e h s i by inelastic elctron scattering from surfaces. The basic dif- ference...AFOSR-86-6291 UNCLASSIFIED F/Ci 26/14 U EhEilEEEEEBI / E /EEiEEElh E /EEEE~h R-~ ~ 3 -00 0 0 S *...S :04 *.: UNA A ASSIFIED 469 RT CLASSIFICATION OF THIS...Surfaces", J.L. Erskine, American Vacuum Society Lecture, Texas A&M Unversity, College Station, Texas, April 24,1984. e "Electron Energy Loss Studies of
Pledgeted repair of giant hiatal hernia provides excellent long-term results.
Kang, Thomas; Urrego, Hernan; Gridley, Asahel; Richardson, William S
2014-10-01
Use of mesh in hiatal hernia repairs is a topic of debate. We present our experience in laparoscopic primary (nonmesh) repair of giant hiatal hernia. All laparoscopic antireflux procedures done by a single surgeon from November 1997 to October 2006 were retrospectively reviewed. Inclusion criteria were primary crural closure with pledgets and giant hiatal hernia (greater than one-third of the stomach in the chest by esophagram, greater than 5 cm in length endoscopically, or greater than one-third of the stomach in the chest operatively). We attempted to reach all patients who met inclusion criteria and administered the Reflux Symptom Index (RSI) and Quality of Life Scale for Gastroesophageal Reflux Disease (QLSGR) questionnaires. In total, 89 patients met inclusion criteria. The male-to-female ratio was 32:57. Average age was 62.7 years. Average body mass index was 29.3 kg/m(2). Average length of stay was 2 days, and mean clinic follow-up was 161 days. At the most recent follow-up, 62% of patients were asymptomatic. The most common postoperative symptoms were dysphagia (16%), reflux/emesis (5%), bloating (5%), nausea (4%), epigastric pain (4%), and heartburn (3%). There were six (6.7%) recurrences on esophagogastroduodenoscopy or upper gastrointestinal examination. Five patients with recurrence were symptomatic. Of the 89 patients, 29 (33%) completed the questionnaire, with a mean follow-up of 69.7 months. Average RSI score was 12 (maximum possible score, 45). In six of nine categories, the average score was less than 1 (possible score, 0-5). Average QLSGR score was 12 (maximum possible score, 45). For satisfaction with the present condition, the average score was 4.34 (maximum score, 5), and 82.7% of respondents were satisfied or very satisfied with their present condition. Laparoscopic primary repair of giant hiatal hernia provides excellent long-term results. We found that 62% of patients were asymptomatic at the last follow-up and that 82% of respondents were satisfied or very satisfied. The recurrence rate was 6.7%.
Peer Teaching to Foster Learning in Physiology.
Srivastava, Tripti K; Waghmare, Lalitbhushan S; Mishra, Ved Prakash; Rawekar, Alka T; Quazi, Nazli; Jagzape, Arunita T
2015-08-01
Peer teaching is an effective tool to promote learning and retention of knowledge. By preparing to teach, students are encouraged to construct their own learning program, so that they can explain effectively to fellow learners. Peer teaching is introduced in present study to foster learning and pedagogical skills amongst first year medical under-graduates in physiology with a Hypothesis that teaching is linked to learning on part of the teacher. Non-randomized, Interventional study, with mixed methods design. Cases experienced peer teaching whereas controls underwent tutorials for four consecutive classes. Quantitative Evaluation was done through pre/post test score analysis for Class average normalized gain and tests of significance, difference in average score in surprise class test after one month and percentage of responses in closed ended items of feedback questionnaire. Qualitative Evaluation was done through categorization of open ended items and coding of reflective statements. The average pre and post test score was statistically significant within cases (p = 0.01) and controls (p = 0.023). The average post test scores was more for cases though not statistically significant. The class average normalized gain (g) for Tutorials was 49% and for peer teaching 53%. Surprise test had average scoring of 36 marks (out of 50) for controls and 41 marks for cases. Analysed section wise, the average score was better for Long answer question (LAQ) in cases. Section wise analysis suggested that through peer teaching, retention was better for descriptive answers as LAQ has better average score in cases. Feedback responses were predominantly positive for efficacy of peer teaching as a learning method. The reflective statements were sorted into reflection in action, reflection on action, claiming evidence, describing experience, and recognizing discrepancies. Teaching can stimulate further learning as it involves interplay of three processes: metacognitive awareness; deliberate practice, and self-explanation. Coupled with immediate feedback and reflective exercises, learning can be measurably enhanced along with improved teaching skills.
Peer Teaching to Foster Learning in Physiology
Srivastava, Tripti K; Waghmare, Lalitbhushan S.; Mishra, Ved Prakash; Rawekar, Alka T; Quazi, Nazli; Jagzape, Arunita T
2015-01-01
Introduction Peer teaching is an effective tool to promote learning and retention of knowledge. By preparing to teach, students are encouraged to construct their own learning program, so that they can explain effectively to fellow learners. Peer teaching is introduced in present study to foster learning and pedagogical skills amongst first year medical under-graduates in physiology with a Hypothesis that teaching is linked to learning on part of the teacher. Materials and Methods Non-randomized, Interventional study, with mixed methods design. Cases experienced peer teaching whereas controls underwent tutorials for four consecutive classes. Quantitative Evaluation was done through pre/post test score analysis for Class average normalized gain and tests of significance, difference in average score in surprise class test after one month and percentage of responses in closed ended items of feedback questionnaire. Qualitative Evaluation was done through categorization of open ended items and coding of reflective statements. Results The average pre and post test score was statistically significant within cases (p = 0.01) and controls (p = 0.023). The average post test scores was more for cases though not statistically significant. The class average normalized gain (g) for Tutorials was 49% and for peer teaching 53%. Surprise test had average scoring of 36 marks (out of 50) for controls and 41 marks for cases. Analysed section wise, the average score was better for Long answer question (LAQ) in cases. Section wise analysis suggested that through peer teaching, retention was better for descriptive answers as LAQ has better average score in cases. Feedback responses were predominantly positive for efficacy of peer teaching as a learning method. The reflective statements were sorted into reflection in action, reflection on action, claiming evidence, describing experience, and recognizing discrepancies. Conclusion Teaching can stimulate further learning as it involves interplay of three processes: metacognitive awareness; deliberate practice, and self-explanation. Coupled with immediate feedback and reflective exercises, learning can be measurably enhanced along with improved teaching skills. PMID:26435969
2013-07-01
on the BISWA on the pretest to an average score of 100% on the BISWA posttest , whereas the participants in the control group showed...only a 1% improvement from the pretest to the posttest . On the BISPA, participants in the test group improved from an average score of 0% during...the pretest to an average score of 100% during the posttest , whereas participants in the control group showed no improvement from pretest to
Jiang, Wen-cai; Li, Jian; Xu, Xiang-zhen; Shen, Ming-xue; Jin, Xiao-lin
2013-08-01
To evaluate the effect of the training of human intestinal parasitic diseases for basic health staff. A workshop including theory courses and practical operations was carried out. At the end of the workshop, the effects were evaluated through the examinations of theory and film-reading. The total score of film-reading was one hundred including reading ten modified thick Kato-Katz slides in five minutes per slide. The results were analyzed statistically with SAS 9.0. There were 162 trainees from 13 cities. All of them took part in the final examination. The highest score of theory test was 99 and the lowest was 60 with the average of 86.3. The average score of the female was higher than that of the male, and the average score of 30-40 years' age group was higher than that of the other groups. The average score of the staff in Northern Jiangsu Province was higher than that of the staff in southern area and middle area of Jiangsu Province (P < 0.05). The highest score of film-reading was 100 and the lowest score was 20 with the average of 73.4. Among the total 9 species, the egg detection rates of five species were more than 60.00%. The detection rate of Trichuris trichiura was highest (88.17%) and the rate of Taenia was only 14.7%. The total average score of the staff in Nanjing City was highest (181.3) and the score of the staff in Changzhou City was lowest (138.3). There were significant differences among different regions (P < 0.05). The technical capability of examining the human intestinal parasitic diseases of basic health staff is different among the different regions of Jiangsu Province. We still need to strengthen the capability of pathogen detection for basic health staff.
Seymour, Nicky; Lakhani, Raj; Hartley, Benjamin; Cochrane, Lesley; Jephson, Christopher
2015-01-01
Patients should have access to high-quality health information websites on which to base their decision-making. There are concerns regarding the accuracy and quality of some health websites. We aimed to objectively measure website quality related to cochlear implantation. Selected patient-information websites were scored, depending on how highly they ranked on search engines and if they were ranked on more than one of the search engines used. The top 40 websites from three major search engines were analysed. The quality of each website was scored using the DISCERN tool and the readability was scored using the Flesch-Kincaid reading ease and the Gunning-Fog index. The average Flesch-Kincaid score was 49.7, giving an average reading age of a 15-17 years old, and the average Gunning-fog score was 13.1, which equals that of an 18 years old. Internet-based information regarding cochlear implantation is of varied quality and is written above the expected reading level of an average person.
Readability assessment of online thyroid surgery patient education materials.
Patel, Chirag R; Cherla, Deepa V; Sanghvi, Saurin; Baredes, Soly; Eloy, Jean Anderson
2013-10-01
Published guidelines recommend written health information be written at or below the sixth-grade level. We evaluate the readability of online materials related to thyroid surgery. Thyroid surgery materials were evaluated using Flesch Reading Ease Score (FRES), Flesch Kincaid Grade Level (FKGL), Gunning Frequency of Gobbledygook (GFOG), and Simple Measure of Gobbledygook (SMOG). Thirty-one documents were evaluated. FRES scores ranged from 29.3 to 67.8 (possible range = 0 to 100), and averaged 50.5. FKGL ranged from 6.9 to 14.9 (possible range = 3 to 12), and averaged 10.4. SMOG scores ranged from 11.8 to 14.5 (possible range = 3 to 19), and averaged 13.0. GFOG scores ranged from 10.6 to 18.0 (possible range = 3 to 19), and averaged 13.5. Readability scores for online thyroid surgery materials are higher (i.e., more difficult) than the recommended levels. However, readability is only one aspect of comprehension. Written information should be designed with that fact in mind. Copyright © 2013 Wiley Periodicals, Inc.
Rural Health, Center of Excellence for Remote and Medically Under-served Area (CERMUSA)
2007-05-01
Pretest I Posttest of Cognitive Knowledge, • Pretest I Posttest of Knowledge (Self Perception), • VCS Feature Comparison. Pretest I Posttest of Cognitive...This measurement was the change between the pretest and posttest scores. Figure 6 represents the average pretest , posttest , and difference scores for...to the educational intervention, each case student’s average posttest scores increased over the pretest scores. Also, in each case, the
Ehsan, Rubab; Hirani, Rahul; Bhesania, Nasha Homi; Zehra, Nosheen
2017-10-01
Primary health care (PHC) is the best approach to achieve health goals in a country. As medical students are a prominent part of future health care providers, it is important to assess their knowledge regarding basic concepts and functions of PHC. Total 400 medical students, 200 (50%) each from public and private medical universities responded in this study. Mean score was 15.21 ± 2.43 and 14.9 ± 2.89 respectively with no significant difference (P=0.370). On the basis of mean score the data is dichotomized into two groups i.e. above average and average (score > 15) and below average (score <15). Hence, 137 (68.5%) students from public and 131 (65.5%) students from the private university fell in the average and above average category. This study shows challenges related to the knowledge and the medical students' level of understanding of the functioning of PHC system.
The total position-spread tensor: Spin partition
DOE Office of Scientific and Technical Information (OSTI.GOV)
El Khatib, Muammar, E-mail: elkhatib@irsamc.ups-tlse.fr; Evangelisti, Stefano, E-mail: stefano@irsamc.ups-tlse.fr; Leininger, Thierry, E-mail: Thierry.Leininger@irsamc.ups-tlse.fr
2015-03-07
The Total Position Spread (TPS) tensor, defined as the second moment cumulant of the position operator, is a key quantity to describe the mobility of electrons in a molecule or an extended system. In the present investigation, the partition of the TPS tensor according to spin variables is derived and discussed. It is shown that, while the spin-summed TPS gives information on charge mobility, the spin-partitioned TPS tensor becomes a powerful tool that provides information about spin fluctuations. The case of the hydrogen molecule is treated, both analytically, by using a 1s Slater-type orbital, and numerically, at Full Configuration Interactionmore » (FCI) level with a V6Z basis set. It is found that, for very large inter-nuclear distances, the partitioned tensor growths quadratically with the distance in some of the low-lying electronic states. This fact is related to the presence of entanglement in the wave function. Non-dimerized open chains described by a model Hubbard Hamiltonian and linear hydrogen chains H{sub n} (n ≥ 2), composed of equally spaced atoms, are also studied at FCI level. The hydrogen systems show the presence of marked maxima for the spin-summed TPS (corresponding to a high charge mobility) when the inter-nuclear distance is about 2 bohrs. This fact can be associated to the presence of a Mott transition occurring in this region. The spin-partitioned TPS tensor, on the other hand, has a quadratical growth at long distances, a fact that corresponds to the high spin mobility in a magnetic system.« less
NASA Astrophysics Data System (ADS)
Muñoz, P.; García-Cortés, I.; Sánchez, F. J.; Moroño, A.; Malo, M.; Hodgson, E. R.
2017-09-01
Radiation damage to flow channel insert (FCI) materials is an important issue for the concept of dual-coolant blanket development in future fusion devices. Silicon Carbide (SiC) is one of the most suitable materials for FCI. Because of the severe radiation environment and exposure to tritium during operation it is of fundamental importance to study hydrogen isotope trapping and release in these materials. Here the trapping, detrapping, and diffusion of deuterium implanted into SiC is studied in correlation with pre- and post-damage induced under different conditions. For this, SiC samples are pre-damaged with 50 keV Ne+ ions at different temperatures (20, 200, 450, 700 °C) to different damage doses (1, 3.6, 7 dpa). Next, deuterium is introduced into the samples at 450 °C by ion implantation at 7 keV. The implanted deuterium retained in the sample is analysed using secondary ion mass spectrometry (SIMS) and thermo-stimulated desorption (TSD) measurements. The results indicate that with increasing neon damage dose, the maximum deuterium desorption occurs at higher temperatures. In contrast, when increasing neon implantation temperature for a fixed dose, the maximum deuterium desorption release temperature decreases. It is interpreted that the neon bombardment produces thermally stable traps for hydrogen isotopes and the stability of this damage increases with neon pre-implantation dose. A decrease of the trapping of implanted deuterium is also observed to occur due to damage recovery by thermal annealing during pre-implantation at the higher temperatures. Finally, direct particle bombardment induced deuterium release is also observed.
Haag, Kim H.; Pfeiffer, William R.
2012-01-01
WAP scores and weighted average scores for wetland vegetation were generally consistent with the results of the flooded area analysis. The WAP scores and weighted average scores were higher overall and did not decline with time at four wetlands in well fields (W-33, W-56, Starkey N, and Starkey 108) during the years following reductions in groundwater-withdrawal rates. These four wetlands also had increases in the extent and duration of the flooded area during the post-reduction period. Scores for trees were more consistent than scores for shrubs and groundcover. WAP scores remained relatively low or generally declined at five well-field wetlands (Q-1, W-17, W-41, Starkey D, and Starkey E) during the years following reductions in groundwater-withdrawal rates, and weighted average scores either declined over time or remained low. These five wetlands either did not have an increase in the extent and duration of the flooded area, or if there was an increase, it was small.
The influence of community well-being on mortality among Registered First Nations people.
Oliver, Lisa N; Penney, Chris; Peters, Paul A
2016-07-20
Living in a community with lower socioeconomic status is associated with higher mortality. However, few studies have examined associations between community socioeconomic characteristics and mortality among the First Nations population. The 1991-to-2006 Census Mortality and Cancer Cohort follow-up, which tracked a 15% sample of Canadians aged 25 or older, included 57,300 respondents who self-identified as Registered First Nations people or Indian band members. The Community Well-Being Index (CWB), a measure of the social and economic well-being of communities, consists of income, education, labour force participation, and housing components. A dichotomous variable was used to indicate residence in a community with a CWB score above or below the average for First Nations communities. Age-standardized mortality rates (ASMRs) were calculated for First Nations cohort members in communities with CWB scores above and below the First Nations average. Cox proportional hazards models examined the impact of CWB when controlling for individual characteristics. The ASMR for First Nations cohort members in communities with a below-average CWB was 1,057 per 100,000 person-years at risk, compared with 912 for those in communities with an above-average CWB score. For men, living in a community with below-average income and labour force participation CWB scores was associated with an increased hazard of death, even when individual socioeconomic characteristics were taken into account. Women in communities with below-average income scores had an increased hazard of death. First Nations people in communities with below-average CWB scores tended to have higher mortality rates. For some components of the CWB, effects remained even when individual socioeconomic characteristics were taken into account.
Falling Behind: New Evidence on the Black-White Achievement Gap
ERIC Educational Resources Information Center
Levitt, Steven D.; Fryer, Roland G.
2004-01-01
On average, black students typically score one standard deviation below white students on standardized tests--roughly the difference in performance between the average 4th grader and the average 8th grader. Historically, what has come to be known as the black-white test-score gap has emerged before children enter kindergarten and has tended to…
ACT Average Composite by State: 2000 ACT-Tested Graduates.
ERIC Educational Resources Information Center
American Coll. Testing Program, Iowa City, IA.
This table contains average composite scores by state for high school graduates who took the ACT Assessment in 2000. For each state the percentage of graduates taking the ACT Assessment and the average composite score are given, with the same information for those who completed the recommended core curriculum and those who did not, as well as for…
Customer care. Patient satisfaction in the prehospital setting.
Doering, G T
1998-09-01
The focus of the study was to prioritize six emergency medical service treatment factors in terms of their impact upon patient satisfaction in the prehospital setting. The six treatment areas analyzed were: EMS response time; medical care provided on scene; explanation of care by the provider; the provider's ability to reduce patient anxiety; the provider's ability to meet the patient's non-medical needs; and the level of courtesy/politeness shown by the EMS provider toward the patient. Telephone interviews were conducted with both patients and bystanders to obtain their perception of how well the system met their needs. The study analyzed how the six issues were rated and then evaluated the impact an individual's low score in a category had on that person's overall rating of the service provided. The overall satisfaction rating is not a calculated score, but an overall score specified by the respondent. The effect each issue had on the respondent's overall rating was determined by averaging the overall ratings for a category's low scorers, averaging the overall ratings for high scorers and then measuring the difference. Results of the study indicate that the factor with the greatest negative impact on patient satisfaction came from a perceived lack of crew courtesy and politeness. Respondents who indicated a fair to poor score in this category decreased their overall score by 60.2%. Ratings in other categories yielded the following results: When respondents rated the response time as fair to poor, their average overall rating showed an 18.4% decrease. When respondents rated the quality of medical care as fair to poor, their average overall rating showed a decrease of 22.6%. When the crew's ability to explain what was happening to the patient was rated as fair to poor, the average overall score dropped 33.6%. When the EMT's and medic's ability to reduce the patient's anxiety was rated fair to poor, average overall score declined by 32.6%. Finally, when the crew's ability to satisfy a patient's non-medical needs was rated as fair to poor, the average overall score diminished by 37.4%.
Communication skills in pediatrics – the relationship between pediatrician and child
Mărginean, Cristina Oana; Meliţ, Lorena Elena; Chinceşan, Mihaela; Mureşan, Simona; Georgescu, Anca Meda; Suciu, Nicoleta; Pop, Anisoara; Azamfirei, Leonard
2017-01-01
Abstract Interpersonal and communication skills are 2 essential qualities of every physician. These are separate and distinct parts of the professional character of every physician. In pediatrics these abilities present even a higher impact. We performed a survey-type prospective study based on questionnaires on 100 subjects, equally divided into 4 groups: 25 children, 25 pediatricians, 25 care-givers (parents, tutors, and relatives), and 25 health care staff, in a Tertiary Pediatric Clinic from Romania, between January 2017 and April 2017. We included 100 participants in our study, equally divided into 4 groups: pediatric patients, pediatricians, care-givers, and health care staff. The 1st group comprised 25 children diagnosed with different chronic conditions, presenting the age between 5 and 14 years. The male gender predominated among the children (57%). The lowest general average score for “Communication” section was encountered among pediatricians group, 3.8, while the other 3 groups presented the same average score for this section, that is, 4.6. The children and the health care staff offered the same average score for “Transparency,” that is, 4.6, while the pediatricians offered a score of 4.5, and the care-givers of 4.7. The lowest average score for the item “Hospital environment” was given by the doctors, that is, 3.3, followed by care-givers with a score of 3.6, health care staff 3.7, and children with an average score of 3.8. All the 4 groups included in the study offered a general average of 4.9 out of 5 for the “Intercultural issues” section. The lowest average score for “Time management” section was offered by both children and pediatricians, that is, 4.1, while care-givers and health care staff had a slightly better perception regarding this item, offering 4.2 and 4.3, respectively. The opinion among the 4 groups included in the study was generally similar regarding the 5 items assessed by our questionnaires. Therefore, the main aspects that need to be improved in the health care system in downward order are the following: hospital environment, time management, communication, transparency, and intercultural issues. PMID:29069036
Communication skills in pediatrics - the relationship between pediatrician and child.
Mărginean, Cristina Oana; Meliţ, Lorena Elena; Chinceşan, Mihaela; Mureşan, Simona; Georgescu, Anca Meda; Suciu, Nicoleta; Pop, Anisoara; Azamfirei, Leonard
2017-10-01
Interpersonal and communication skills are 2 essential qualities of every physician. These are separate and distinct parts of the professional character of every physician. In pediatrics these abilities present even a higher impact.We performed a survey-type prospective study based on questionnaires on 100 subjects, equally divided into 4 groups: 25 children, 25 pediatricians, 25 care-givers (parents, tutors, and relatives), and 25 health care staff, in a Tertiary Pediatric Clinic from Romania, between January 2017 and April 2017.We included 100 participants in our study, equally divided into 4 groups: pediatric patients, pediatricians, care-givers, and health care staff. The 1st group comprised 25 children diagnosed with different chronic conditions, presenting the age between 5 and 14 years. The male gender predominated among the children (57%). The lowest general average score for "Communication" section was encountered among pediatricians group, 3.8, while the other 3 groups presented the same average score for this section, that is, 4.6. The children and the health care staff offered the same average score for "Transparency," that is, 4.6, while the pediatricians offered a score of 4.5, and the care-givers of 4.7. The lowest average score for the item "Hospital environment" was given by the doctors, that is, 3.3, followed by care-givers with a score of 3.6, health care staff 3.7, and children with an average score of 3.8. All the 4 groups included in the study offered a general average of 4.9 out of 5 for the "Intercultural issues" section. The lowest average score for "Time management" section was offered by both children and pediatricians, that is, 4.1, while care-givers and health care staff had a slightly better perception regarding this item, offering 4.2 and 4.3, respectively.The opinion among the 4 groups included in the study was generally similar regarding the 5 items assessed by our questionnaires. Therefore, the main aspects that need to be improved in the health care system in downward order are the following: hospital environment, time management, communication, transparency, and intercultural issues.
Department of Defense HIV/AIDS Prevention Program (DHAPP): 2010 Annual Report
2011-04-01
training sessions that took place in FY10 to assess the program’s effectiveness. MEASURES OF EFFECTIVENESS Pretest and posttests have been developed with...competence level among the trainees. Pretest scores ranged from 32.5% to 67.5%, while posttest scores ranged from 65.0% to 75.0%, making it clear that...it was a valuable training. The average pretest score went from approximately 50% to a posttest average of 70%. Below is a table of scores, followed
The Apgar score has survived the test of time.
Finster, Mieczyslaw; Wood, Margaret
2005-04-01
In 1953, Virginia Apgar, M.D. published her proposal for a new method of evaluation of the newborn infant. The avowed purpose of this paper was to establish a simple and clear classification of newborn infants which can be used to compare the results of obstetric practices, types of maternal pain relief and the results of resuscitation. Having considered several objective signs pertaining to the condition of the infant at birth she selected five that could be evaluated and taught to the delivery room personnel without difficulty. These signs were heart rate, respiratory effort, reflex irritability, muscle tone and color. Sixty seconds after the complete birth of the baby a rating of zero, one or two was given to each sign, depending on whether it was absent or present. Virginia Apgar reviewed anesthesia records of 1025 infants born alive at Columbia Presbyterian Medical Center during the period of this report. All had been rated by her method. Infants in poor condition scored 0-2, infants in fair condition scored 3-7, while scores 8-10 were achieved by infants in good condition. The most favorable score 1 min after birth was obtained by infants delivered vaginally with the occiput the presenting part (average 8.4). Newborns delivered by version and breech extraction had the lowest score (average 6.3). Infants delivered by cesarean section were more vigorous (average score 8.0) when spinal was the method of anesthesia versus an average score of 5.0 when general anesthesia was used. Correlating the 60 s score with neonatal mortality, Virginia found that mature infants receiving 0, 1 or 2 scores had a neonatal death rate of 14%; those scoring 3, 4, 5, 6 or 7 had a death rate of 1.1%; and those in the 8-10 score group had a death rate of 0.13%. She concluded that the prognosis of an infant is excellent if he receives one of the upper three scores, and poor if one of the lowest three scores.
Chae, Jin Seok; Park, Jin; So, Wi-Young
2017-07-28
The purpose of this study was to suggest a ranking prediction model using the competition record of the Ladies Professional Golf Association (LPGA) players. The top 100 players on the tour money list from the 2013-2016 US Open were analyzed in this model. Stepwise regression analysis was conducted to examine the effect of performance and independent variables (i.e., driving accuracy, green in regulation, putts per round, driving distance, percentage of sand saves, par-3 average, par-4 average, par-5 average, birdies average, and eagle average) on dependent variables (i.e., scoring average, official money, top-10 finishes, winning percentage, and 60-strokes average). The following prediction model was suggested:Y (Scoring average) = 55.871 - 0.947 (Birdies average) + 4.576 (Par-4 average) - 0.028 (Green in regulation) - 0.012 (Percentage of sand saves) + 2.088 (Par-3 average) - 0.026 (Driving accuracy) - 0.017 (Driving distance) + 0.085 (Putts per round)Y (Official money) = 6628736.723 + 528557.907 (Birdies average) - 1831800.821 (Par-4 average) + 11681.739 (Green in regulation) + 6476.344 (Percentage of sand saves) - 688115.074 (Par-3 average) + 7375.971 (Driving accuracy)Y (Top-10 finish%) = 204.462 + 12.562 (Birdies average) - 47.745 (Par-4 average) + 1.633 (Green in regulation) - 5.151 (Putts per round) + 0.132 (Percentage of sand saves)Y (Winning percentage) = 49.949 + 3.191 (Birdies average) - 15.023 (Par-4 average) + 0.043 (Percentage of sand saves)Y (60-strokes average) = 217.649 + 13.978 (Birdies average) - 44.855 (Par-4 average) - 22.433 (Par-3 average) + 0.16 (Green in regulation)Scoring of the above five prediction models and the prediction of golf ranking in the 2016 Women's Golf Olympic competition in Rio revealed a significant correlation between the predicted and real ranking (r = 0.689, p < 0.001) and between the predicted and the real average score (r = 0.653, p < 0.001). Our ranking prediction model using LPGA data may help coaches and players to identify which players are likely to participate in Olympic and World competitions, based on their performance.
Towards nonaxisymmetry; initial results using the Flux Coordinate Independent method in BOUT++
NASA Astrophysics Data System (ADS)
Shanahan, B. W.; Hill, P.; Dudson, B. D.
2016-11-01
Fluid simulation of stellarator edge transport is difficult due to the complexities of mesh generation; the stochastic edge and strong nonaxisymmetry inhibit the use of field aligned coordinate systems. The recent implementation of the Flux Coordinate Independent method for calculating parallel derivatives in BOUT++ has allowed for more complex geometries. Here we present initial results of nonaxisymmetric diffusion modelling as a step towards stellarator turbulence modelling. We then present initial (non-turbulent) transport modelling using the FCI method and compare the results with analytical calculations. The prospects for future stellarator transport and turbulence modelling are discussed.
The effect of constraint on fuel-coolant interactions in a confined geometry
DOE Office of Scientific and Technical Information (OSTI.GOV)
Park, H.; Corradini, M.L.
A Fuel-Coolant Interaction (FCI or vapor explosion) is the phenomena in which a hot liquid rapidly transfers its internal energy into a surrounding colder and more volatile liquid. The energetics of such a complex multi-phase and multi-component phenomenon is partially determined by the surrounding boundary conditions. As one of the boundary conditions, we studied the effect of constraint on FCIs. The WFCI-D series of experiments were performed specifically to observe this effect. The results from these and our previous WFCI tests as well as those of other investigators are compared.
ERIC Educational Resources Information Center
Shaw, Emily J.; Kobrin, Jennifer L.
2013-01-01
This study examines the relationship between students' SAT essay scores and college outcomes, including first-year grade point average (FYGPA) and first-year English course grade average (FY EngGPA), overall and by various demographic and academic performance subgroups. Results showed that the SAT essay score has a positive relationship with both…
Cochran, Grant; Renninger, Christopher; Tompane, Trevor; Bellamy, Joseph; Kuhn, Kevin
2017-09-01
There are 2 Level I studies comparing open reduction and internal fixation (ORIF) and primary arthrodesis (PA) in high-energy Lisfranc injuries. There are no studies comparing ORIF and PA in young athletic patients with low-energy injuries. All operatively managed low-energy Lisfranc injuries sustained by active duty military personnel at a single institution were identified from 2010 to 2015. The injury pattern, method of treatment, and complications were reviewed. Implant removal rates, fitness test scores, return to military duty rates, and Foot and Ankle Ability Measure (FAAM) scores were compared. Thirty-two patients were identified with the average age of 28 years. PA was performed in 14 patients with ORIF in 18. The PA group returned to full duty at an average of 4.5 months whereas the ORIF group returned at an average of 6.7 months ( P = .0066). The PA group ran their fitness test an average of 9 seconds per mile slower than their preoperative average whereas the ORIF group ran it an average of 39 seconds slower per mile ( P = .032). There were no differences between the 2 groups in the FAAM scores at an average of 35 months. Implant removal was performed in 15 (83%) in the ORIF group and 2 (14%) in the PA group ( P = .005). Low-energy Lisfranc injuries treated with primary arthrodesis had a lower implant removal rate, an earlier return to full military activity, and better fitness test scores after 1 year, but there was no difference in FAAM scores after 3 years. Level III, comparative cohort study.
i-Assess: Evaluating the impact of electronic data capture for OSCE.
Monteiro, Sandra; Sibbald, Debra; Coetzee, Karen
2018-04-01
Tablet-based assessments offer benefits over scannable-paper assessments; however, there is little known about the impact to the variability of assessment scores. Two studies were conducted to evaluate changes in rating technology. Rating modality (paper vs tablets) was manipulated between candidates (Study 1) and within candidates (Study 2). Average scores were analyzed using repeated measures ANOVA, Cronbach's alpha and generalizability theory. Post-hoc analyses included a Rasch analysis and McDonald's omega. Study 1 revealed a main effect of modality (F (1,152) = 25.06, p < 0.01). Average tablet-based scores were higher, (3.39/5, 95% CI = 3.28 to 3.51), compared with average scan-sheet scores (3.00/5, 95% CI = 2.90 to 3.11). Study 2 also revealed a main effect of modality (F (1, 88) = 15.64, p < 0.01), however, the difference was reduced to 2% with higher scan-sheet scores (3.36, 95% CI = 3.30 to 3.42) compared with tablet scores (3.27, 95% CI = 3.21 to 3.33). Internal consistency (alpha and omega) remained high (>0.8) and inter-station reliability remained constant (0.3). Rasch analyses showed no relationship between station difficulty and rating modality. Analyses of average scores may be misleading without an understanding of internal consistency and overall reliability of scores. Although updating to tablet-based forms did not result in systematic variations in scores, routine analyses ensured accurate interpretation of the variability of assessment scores. This study demonstrates the importance of ongoing program evaluation and data analysis.
Medical Students’ Perception of Their Educational Environment
Pai, Preethi G; Menezes, Vishma; Srikanth; Subramanian, Atreya M.; Shenoy, Jnaneshwara P.
2014-01-01
Background: Students’ perception of the environment within which they study has shown to have a significant impact on their behavior, academic progress and sense of well-being. This study was undertaken to evaluate the students’ perception of their learning environment in an Indian medical school following traditional curricula and to study differences, if any, between the students according to the stages of medical education, i.e., the pre-clinical and clinical stages. Methodology: In the present study, the Dundee Ready Education Environment Measure (DREEM) inventory was administered to undergraduate medical students of first (n = 227), third (n = 175), fifth (n = 171) and seventh (n = 123) semesters. Scores obtained were expressed as mean ± Standard Deviation (SD) and analyzed using one-way ANOVA and Dunnett’s test. P-value < 0.05 was considered as significant. Results: The mean DREEM score for our medical school was 123/200.The first-year students were found to be more satisfied with learning environment (indicated by their higher DREEM score) compared to other semester students. Progressive decline in scores with each successive semester was observed. Evaluating the sub-domains of perception, the registrars in all semesters had a more positive perception of learning (Average mean score: 29.44), their perception of course organizers moved in the right direction (Average mean score: 26.86), their academic self-perception was more on the positive side (Average mean score: 20.14), they had a more positive perception of atmosphere (Average mean score: 29.07) and their social self-perception could be graded as not too bad (Average mean score: 17.02). Conclusion: The present study revealed that all the groups of students perceived their learning environment positively. However, a few problematic areas of learning environment were perceived such as: students were stressed more often; they felt that the course organizers were authoritarian and emphasized factual learning. Implementing more problem-based learning, student counseling and workshops on teaching-learning for educators might enable us to remedy and enrich our learning environment. PMID:24596737
State Test Score Trends through 2008-09, Part 1: Rising Scores on State Tests and NAEP. Nevada
ERIC Educational Resources Information Center
Center on Education Policy, 2010
2010-01-01
This paper profiles Nevada's test score trends through 2008-09. Between 2005 and 2009, the percentages of students reaching the proficient level on the state test and the basic level on NAEP increased in grade 8 reading and math. Average annual gains were larger on the state test than on NAEP in both subjects. Trends in average (mean) test scores…
Analysis of 2009-10 WCPSS SAT Scores. Measuring Up. E&R Report No. 10.25
ERIC Educational Resources Information Center
Holdzkom, David; Gilleland, Kevin
2010-01-01
Wake County Public School System (WCPSS) students continue to fare well on the SAT test as compared with students in the state and nation. While there was a decline in average test scores in 2009-10 as compared with the prior year, the posted scores continue a trend of measurable improvement over time. Over the past 20 years, the average SAT…
ERIC Educational Resources Information Center
Radunzel, Justine; Noble, Julie
2012-01-01
This study compared the effectiveness of ACT[R] Composite score and high school grade point average (HSGPA) for predicting long-term college success. Outcomes included annual progress towards a degree (based on cumulative credit-bearing hours earned), degree completion, and cumulative grade point average (GPA) at 150% of normal time to degree…
Very high stability systems: LMJ target alignment system and MTG imager test setup
NASA Astrophysics Data System (ADS)
Compain, Eric; Maquet, Philippe; Kunc, Thierry; Marque, Julien; Lauer-Solelhac, Maxime; Delage, Laurent; Lanternier, Catherine
2015-09-01
Most of space instruments and research facilities require test equipment with demanding opto-mechanical stability. In some specific cases, when the stability performance directly drives the final performance of the scientific mission and when feasibility is questionable, specific methods must be implemented for the associated technical risk management. In present paper, we will present our heritage in terms of methodology, design, test and the associated results for two specific systems : the SOPAC-POS and the MOTA, generating new references for future developments. From a performance point of view, we will emphasis on following key parameters : design symmetry, thermal load management, and material and structural choices. From a method point of view the difficulties arise first during design, from the strong coupling between the thermal, mechanical and optical performance models, and then during testing, from the difficulty of conceiving test setup having appropriate performance level. We will present how these limitations have been overcome. SOPAC-POS is the target alignment system of the LMJ, Laser Mega Joule, the French inertial confinement fusion research center. Its stability has been demonstrated by tests in 2014 after 10 years of research and development activities, achieving 1μm stability @ 6m during one hour periods. MOTA is an Optical Ground Support Equipment aiming at qualifying by tests the Flexible Combined Imager (FCI). FCI is an instrument for the meteorological satellite MTG-I, a program of and funded by the European Space Agency and under prime contractorship of Thales Alenia Space. Optimized design will allow to get better than 0.2 μrad stability for one hour periods, as required for MTF measurement.
LoGalbo, Anthony; Sawrie, Stephen; Roth, David L; Kuzniecky, Ruben; Knowlton, Robert; Faught, Edward; Martin, Roy
2005-05-01
Previous studies have shown that structural integrity (i.e., presence/absence of mesial temporal sclerosis (MTS)) of the left mesial temporal lobe is associated with verbal memory outcome following left anterior temporal lobectomy (ATL). However, the functional integrity of the left temporal lobe, as exemplified by preoperative verbal memory performance, has also been associated with verbal memory outcome following surgery. We investigated the risk of verbal memory loss in patients with known structural abnormality (i.e., left mesial temporal sclerosis by MRI) and normal preoperative verbal memory performance who undergo left ATL. Seventeen patients with left temporal lobe epilepsy, MRI-based exclusive left MTS, and normal preoperative verbal memory were identified. Normal verbal memory was defined as performance on both Acquisition (learning across trials 1-5) and Retrieval (long delayed free recall) portions of the California Verbal Learning Test (CVLT) above a T score of 40 (>16%ile). Postoperative verbal memory outcome was established by incorporating standardized regression-based (SRB) change scores. Postoperative declines across both CVLT Retrieval T scores and Acquisition T scores (average 20% and average 15% declines from baseline scores, respectively) were measured for the group. The average CVLT Retrieval SRB change score was -2.5, and the average CVLT Acquisition SRB change score was -1.0. A larger proportion of patients demonstrated postoperative declines on Retrieval scores than Acquisition scores (64.7% vs 17.6%, respectively). Even in the presence of left MTS, patients exhibiting normal presurgical verbal memory are at risk for verbal memory declines following ATL. These results suggest that the functional integrity of the left mesial temporal lobe may play an important role in the verbal memory outcome in this patient group.
Dexter, Franklin; Szeluga, Debra; Masursky, Danielle; Hindman, Bradley J
2016-06-01
Anesthesia residents in our department evaluate the supervision provided by the faculty anesthesiologist with whom they worked the previous day. What advice managers can best provide to the faculty who receive below-average supervision scores is unknown. The residents provided numerical answers (1 "never," 2 "rarely," 3 "frequently," or 4 "always") to each of the 9 supervision questions, resulting in a total supervision score. A written comment could also be provided. Over 2.5 years, the response rate to requests for evaluation was 99.1%. There were 13,664 evaluations of 76 faculty including 1387 comments. There were 25 evaluations with a comment of disrespectful behavior. For all 25, the question evaluating whether "the faculty treated me respectfully" was answered <4 (i.e., not "always"). The supervision scores were less than for the other evaluations with comments (P < 0.0001). Each increase in the faculty's number of comments of being disrespectful was associated with a lesser mean score (P = 0.0002). A low supervision score (<3.00; i.e., less than "frequent") had an odds ratio of 85 for disrespectful faculty behavior (P < 0.0001). The predictive value of the supervision score not being low for absence of a comment of disrespectful behavior was 99%. That finding was especially useful because 94% of scores below average (<3.80) were not low (≥3.00). There were 6 evaluations with a comment of insufficient faculty presence. Those evaluations had lesser scores than the other evaluations with comments (P < 0.0001). The 6 faculty with 1 such comment had lesser mean scores than the other faculty (P = 0.0071). There were 34 evaluations with a comment about poor-quality teaching. The evaluations related to poor teaching had lesser scores than the other evaluations with comments (P < 0.0001). The faculty who each received such a comment had lesser mean scores than the other faculty (P < 0.0001). Each increase in the faculty's number of comments of poor-quality teaching was associated with a lesser mean score (P = 0.0002). The 9 supervision questions were internally consistent (Cronbach α = 0.948). A faculty with a comment about poor-quality teaching had significant odds of also having a comment about insufficient presence (P = 0.0044). A comment with negative sentiment had significant odds of being about poor-quality teaching rather than being about insufficient presence (odds ratio, 6.00; P < 0.0001). A faculty who has insufficient presence cannot be providing good teaching. Furthermore, there was negligible correlation between supervision scores and faculty clinical assignments. Thus, insufficient faculty presence accounted for a small proportion of below-average supervision scores and low-quality supervision. Furthermore, scores ≥3 have a predictive value for the absence of disrespectful behavior ≅99%. Approximately 94% of the faculty supervision scores that were below average were still ≥3. Consequently, for the vast majority of the faculty-resident-days, quality of teaching distinguished between below- versus above-average supervision scores. This result is consistent with our prior finding of a strong correlation between 6-month supervision scores and assessments of teaching effectiveness. Taken together, when individual faculty anesthesiologists are counseled about their clinical supervision scores, the attribute to emphasize is quality of clinical teaching.
Liu, Chung-Ting; Lu, Yung-Chang; Huang, Chang-Hung
2015-09-01
In some situations, harvested hamstring tendon grafts are not qualified for anterior cruciate ligament (ACL) reconstruction. This study aimed to present a reinforcing method with additional half peroneus longus tendon (half-PLT) graft augmentation. Eight cases underwent ACL reconstruction with unqualified hamstring tendon grafts (diameter <7 mm) and were salvaged by additional half-PLT graft augmentation. The pivot shift test and KT-1000 tests were performed 3 years after surgery. Functional evaluation of subjective International Knee Documentation Committee (IKDC) and Lysholm scores was also done. In addition, Foot and Ankle Disability Index (FADI) scores were used to evaluate the function of the ankle donor site. The diameter of unqualified four-strand hamstring tendon grafts was 6.2 mm on average (range, 6.0-6.5 mm). The average diameter of hamstring grafts with half-PLT augmentation was 9.6 mm (range, 9.5-10.0 mm). The pivot shift test was negative in all patients. No significant differences between normal and abnormal knees were found by KT-1000. The average IKDC score was 86.0 (range, 83 to 89), and the average Lysholm score was 84.4 (range, 80-90). The average FADI score for the donor sites of half-PLT was 135.8 (range, 134-136). Additional half-PLT can successfully and safely reinforce unqualified hamstring tendon grafts for ACL reconstruction.
An examination of anxiety levels of nursing students caring for patients in terminal period
Sancar, Behire; Yalcin, Ayse Saba; Acikgoz, Inci
2018-01-01
Objective: To investigate the anxiety levels of the nursing students who are caring for the patients in the terminal period and to determine whether there is a difference between 3rd, 4th grade in this direction. Methods: A 40-item “State and Trait Anxiety Scale” was used together with the questionnaire on “Determining the Level of Anxiety Levels of Nursing Students Caring for the Patient at the Terminal Period” for determining the data. Results: The mean scores and standard deviations of all students from the state and trait anxiety scales were respectively 41.95±5.06, 48.15±5.44. Averages of 3rd state anxiety scale score was 42.03 ± 5.26, trait anxiety scale averages were 48.08 ± 5.59; Averages of 4th state anxiety scale score was 41.85 ± 4.83, trait anxiety scale averages were 48.24 ± 5.30. Conclusion: In our study, it was found that there wasn't significant difference between the 3rd, 4th grade students related to ill patient care in terms of high level of state and trait anxiety during communication and patient care. The state and trait anxiety scores of the students in both grades were found to be higher than the average scores of the scale's previous applications. PMID:29643886
Clinical use of the ABO-Scoring Index: reliability and subtraction frequency.
Lieber, William S; Carlson, Sean K; Baumrind, Sheldon; Poulton, Donald R
2003-10-01
This study tested the reliability and subtraction frequency of the study model-scoring system of the American Board of Orthodontists (ABO). We used a sample of 36 posttreatment study models that were selected randomly from six different orthodontic offices. Intrajudge and interjudge reliability was calculated using nonparametric statistics (Spearman rank coefficient, Wilcoxon, Kruskal-Wallis, and Mann-Whitney tests). We found differences ranging from 3 to 6 subtraction points (total score) for intrajudge scoring between two sessions. For overall total ABO score, the average correlation was .77. Intrajudge correlation was greatest for occlusal relationships and least for interproximal contacts. Interjudge correlation for ABO score averaged r = .85. Correlation was greatest for buccolingual inclination and least for overjet. The data show that some judges, on average, were much more lenient than others and that this resulted in a range of total scores between 19.7 and 27.5. Most of the deductions were found in the buccal segments and most were related to the second molars. We present these findings in the context of clinicians preparing for the ABO phase III examination and for orthodontists in their ongoing evaluation of clinical results.
Low agreement of visual rating for detailed quantification of pulmonary emphysema in whole-lung CT.
Mascalchi, Mario; Diciotti, Stefano; Sverzellati, Nicola; Camiciottoli, Gianna; Ciccotosto, Cesareo; Falaschi, Fabio; Zompatori, Maurizio
2012-02-01
Multidetector spiral computed tomography (CT) has opened the possibility of quantitative evaluation of emphysema extent in the whole lung. Visual assessment can be used for such a purpose, but its reproducibility has not been established. To assess agreement of detailed assessment of pulmonary emphysema on whole-lung CT using a visual scale. Thirty patients with chronic obstructive pulmonary disease underwent whole-lung inspiratory CT. Four chest radiologists rated the same 22 ± 2 thin sections using a visual scale which defines a range of emphysema extent between 0 and 100. Two of them repeated the rating two months later. Inter- and intra-operator agreement was evaluated with the Bland and Altman method. In addition, the percentage of emphysema at -950 Hounsfield units in the whole lung was determined using fully automated commercially available software for 3D densitometry. In three of six operator pairs and in one of two intra-operator pairs the Kendall τ test showed a significant correlation between the difference and the average magnitude of visual scores. Among different operators the half-width of 95% limits of agreement (95% LoA) was wide ranging between a score of 14.2-27.7 for an average visual score of 20 and between 18.5-36.8 for an average visual score of 80. Within the same operator the half-width of 95% LoA ranged between a score of 10.9-21.0 for an average visual score of 20 and between 25.1-30.1 for an average visual score of 80. The visual scores of the four radiologists were correlated with the results of densitometry (P < 0.001; r = 0.65-0.81). The inter- and intra-operator agreement of detailed assessment of emphysema in the whole lung using a visual scale is low and decreases with increasing emphysema extent.
Wen, Guodao; Cong, ZiXiang; Liu, KaiDong; Tang, Chao; Zhong, Chunyu; Li, Liwen; Dai, XuJie; Ma, Chiyuan
2016-06-01
We aimed to present a practical three-dimensional (3D) printed simulator to comprehensively and effectively accelerate the learning curve of endoscopic endonasal transsphenoidal surgery (EETS). The 3D printed simulator consists of three parts: (1) skull frame, (2) the nasal passage and the nasal alar of the face, and (3) a modified sella turcica. We aimed to improve three basic operational skills of surgeons: drilling, curetting, and aspirating. Eighteen neurosurgeons and five post-graduates were recruited and consented for the training. For trainees, (1) as the training progressed, the scores increased gradually, (2) a significant increase in the average scores was observed in the tenth training compared to the first training, and (3) there is a significant decrease in trainee variability in the shortening of the gap. The 18 neurosurgeons were divided into three groups: experts, assistants, and observers. For all three basic operations, (1) the average score of experts was obviously higher than that of the assistants, observers, and trainees' tenth training and (2) the average scores of assistants and observers were obviously higher than that of trainees' first training. A significant high in the average score between the assistants and the observers was seen for aspirating, but not for drilling or curetting. For curetting and aspirating, the tenth training average score of trainees was obviously higher than that of assistants and observers. This 3D printed simulator allows different endoscopic basic operations to be simulated and improves the EETS techniques of surgeons. We believed it to be a practical, simple, and low-cost simulator.
Motor ability and inhibitory processes in children with ADHD: a neuroelectric study.
Hung, Chiao-Ling; Chang, Yu-Kai; Chan, Yuan-Shuo; Shih, Chia-Hao; Huang, Chung-Ju; Hung, Tsung-Min
2013-06-01
The purpose of the current study was to examine the relationship between motor ability and response inhibition using behavioral and electrophysiological indices in children with ADHD. A total of 32 participants were recruited and underwent a motor ability assessment by administering the Basic Motor Ability Test-Revised (BMAT) as well as the Go/No-Go task and event-related potential (ERP) measurements at the same time. The results indicated that the BMAT scores were positively associated with the behavioral and ERP measures. Specifically, the BMAT average score was associated with a faster reaction time and higher accuracy, whereas higher BMAT subset scores predicted a shorter P3 latency in the Go condition. Although the association between the BMAT average score and the No-Go accuracy was limited, higher BMAT average and subset scores predicted a shorter N2 and P3 latency and a larger P3 amplitude in the No-Go condition. These findings suggest that motor abilities may play roles that benefit the cognitive performance of ADHD children.
Selection criteria of residents for residency programs in Kuwait
2013-01-01
Background In Kuwait, 21 residency training programs were offered in the year 2011; however, no data is available regarding the criteria of selecting residents for these programs. This study aims to provide information about the importance of these criteria. Methods A self-administered questionnaire was used to collect data from members (e.g. chairmen, directors, assistants …etc.) of residency programs in Kuwait. A total of 108 members were invited to participate. They were asked to rate the importance level (scale from 1 to 5) of criteria that may affect the acceptance of an applicant to their residency programs. Average scores were calculated for each criterion. Results Of the 108 members invited to participate, only 12 (11.1%) declined to participate. Interview performance was ranked as the most important criteria for selecting residents (average score: 4.63/5.00), followed by grade point average (average score: 3.78/5.00) and honors during medical school (average score: 3.67/5.00). On the other hand, receiving disciplinary action during medical school and failure in a required clerkship were considered as the most concerning among other criteria used to reject applicants (average scores: 3.83/5.00 and 3.54/5.00 respectively). Minor differences regarding the importance level of each criterion were noted across different programs. Conclusions This study provided general information about the criteria that are used to accept/reject applicants to residency programs in Kuwait. Future studies should be conducted to investigate each criterion individually, and to assess if these criteria are related to residents' success during their training. PMID:23331670
Diversity efforts, admissions, and national rankings: can we align priorities?
Heller, Caren A; Rúa, Sandra Hurtado; Mazumdar, Madhu; Moon, Jennifer E; Bardes, Charles; Gotto, Antonio M
2014-01-01
Increasing student body diversity is a priority for national health education and professional organizations and for many medical schools. However, national rankings of medical schools, such as those published by U.S. News & World Report, place a heavy emphasis on grade point average (GPA) and Medical College Admissions Test (MCAT) scores, without considering student body diversity. These rankings affect organizational reputation and admissions outcomes, even though there is considerable controversy surrounding the predictive value of GPA and MCAT scores. Our aim in this article was to explore the relationship between standard admissions practices, which typically aim to attract students with the highest academic scores, and student body diversity. We examined how changes in GPA and MCAT scores over 5 years correlated with the percentage of enrolled students who are underrepresented in medicine. In a majority of medical schools in the United States from 2005 to 2009, average GPA and MCAT scores of applicants increased, whereas the percentage of enrolled students who are underrepresented in medicine decreased. Our findings suggest that efforts to increase the diversity of medical school student bodies may be complicated by a desire to maintain high average GPA and MCAT scores. We propose that U.S. News revise its ranking methodology by incorporating a new diversity score into its student selectivity score and by reducing the weight placed on GPA and MCAT scores.
ERIC Educational Resources Information Center
Pangaribuan, Tagor; Manik, Sondang
2018-01-01
This research held at SMA HKBP 1 Tarutung North Sumatra on the research result of test XI[superscript 2] and XI[superscript 2] students, after they got treatment in teaching writing in recount text by using buzz group and clustering technique. The average score (X) was 67.7 and the total score buzz group the average score (X) was 77.2 and in…
2009 Department of Defense HIV/AIDS Prevention Program (DHAPP)
2010-05-01
FY08 to assess the program’s effectiveness. MEASURES OF EFFECTIVENESS Pretest and posttests have been developed with the expertise of the physicians...among the trainees. Pretest scores ranged from 55.0% to 80.0%, while posttest scores ranged from 72.5% to 82.5%, making it clear that it was a...valuable training for all participants. The average pretest score ranged from approximately 67.5% to a posttest average of 79.0%, showing clear
Allam, Eman; Ghoneima, Ahmed; Tholpady, Sunil S; Kula, Katherine
2018-06-19
The aim of this study was to determine whether molar incisor hypomineralization (MIH) is greater in patients with cleft lip and palate (CLP) who underwent primary alveolar grafting (PAG) as compared with CLP waiting for secondary alveolar grafting (SAG) and with controls. A retrospective analysis of intraoral photographs of 13 CLP patients who underwent a PAG, 28 CLP prior to SAG, and 60 controls without CLP was performed. Mantel-Haenszel χ tests were used to compare the 3 groups for differences in MIH scores, and Wilcoxon rank sum tests were used to compare the groups for differences in average MIH scores. A 5% significance level was used for all tests. Molar incisor hypomineralization scores were significantly higher for the PAG and SAG groups compared with the control group (P < 0.001). The PAG group had significantly higher incisor MIH (P = 0.016) compared with the SAG group. Molar incisor hypomineralization average scores were significantly higher for the 2 graft groups compared with the controls (P < 0.0001). The PAG group had significantly higher average MIH score and average MIH score for incisors compared with the SAG group (P = 0.03). Cleft lip and palate patients have significantly greater MIH compared with controls, and CLP patients with PAGs have significantly greater MIH in the incisor region compared with CLP patients with SAGs, indicating that subjects with PAGs have more severely affected dentition.
Application of Peterson's stray light model to complex optical instruments
NASA Astrophysics Data System (ADS)
Fray, S.; Goepel, M.; Kroneberger, M.
2016-07-01
Gary L. Peterson (Breault Research Organization) presented a simple analytical model for in- field stray light evaluation of axial optical systems. We exploited this idea for more complex optical instruments of the Meteosat Third Generation (MTG) mission. For the Flexible Combined Imager (FCI) we evaluated the in-field stray light of its three-mirroranastigmat telescope, while for the Infrared Sounder (IRS) we performed an end-to-end analysis including the front telescope, interferometer and back telescope assembly and the cold optics. A comparison to simulations will be presented. The authors acknowledge the support by ESA and Thales Alenia Space through the MTG satellites program.
Interband excitations in the 1D limit of two-band fractional Chern insulators
NASA Astrophysics Data System (ADS)
Jaworowski, Błażej; Kaczmarkiewicz, Piotr; Potasz, Paweł; Wójs, Arkadiusz
2018-05-01
We investigate the stability of the one-dimensional limit of ν = 1 / 3 Laughlin-like fractional Chern insulator with respect to the interband interaction. We propose a construction for the excitations in the infinite-interaction case and show that the energy gap remains finite in the thermodynamic limit. Next, by means of exact diagonalization and Density Matrix Renormalization Group approaches, we consider deviations from ideal dimerization and show that they reduce the stability of the FCI-like states. Finally, to show that our approach is not restricted to one model, we identify the dimer structure behind the thin-torus limit of other system - the checkerboard lattice.
Interpretation of symmetry experiments on Omega
NASA Astrophysics Data System (ADS)
Lours, Laurence; Bastian, Josiane; Monteil, Marie-Christine; Philippe, Franck; Jadaud, Jean-Paul
2006-10-01
The interpretation of the symmetry experiments performed on Omega in 2005 with 3 cone LMJ-like irradiation is presented here. The goal of this campaign was the characterization of the irradiation symmetry by X-ray imaging of the D2Ar capsule. Images of backlit implosion (as done in earlier campaigns with foam balls) and core emission were obtained on the same shot, and can be compared to FCI2 simulations. This set of shots comfirms former results with foam balls of a good symmetry control with 3 cones in empty hohlraums. The influence of the hohlraum shape on symmetry is also studied by comparison of cylindrical hohlraums vs rugby ones.
Estimation of Uncertainties in the Global Distance Test (GDT_TS) for CASP Models.
Li, Wenlin; Schaeffer, R Dustin; Otwinowski, Zbyszek; Grishin, Nick V
2016-01-01
The Critical Assessment of techniques for protein Structure Prediction (or CASP) is a community-wide blind test experiment to reveal the best accomplishments of structure modeling. Assessors have been using the Global Distance Test (GDT_TS) measure to quantify prediction performance since CASP3 in 1998. However, identifying significant score differences between close models is difficult because of the lack of uncertainty estimations for this measure. Here, we utilized the atomic fluctuations caused by structure flexibility to estimate the uncertainty of GDT_TS scores. Structures determined by nuclear magnetic resonance are deposited as ensembles of alternative conformers that reflect the structural flexibility, whereas standard X-ray refinement produces the static structure averaged over time and space for the dynamic ensembles. To recapitulate the structural heterogeneous ensemble in the crystal lattice, we performed time-averaged refinement for X-ray datasets to generate structural ensembles for our GDT_TS uncertainty analysis. Using those generated ensembles, our study demonstrates that the time-averaged refinements produced structure ensembles with better agreement with the experimental datasets than the averaged X-ray structures with B-factors. The uncertainty of the GDT_TS scores, quantified by their standard deviations (SDs), increases for scores lower than 50 and 70, with maximum SDs of 0.3 and 1.23 for X-ray and NMR structures, respectively. We also applied our procedure to the high accuracy version of GDT-based score and produced similar results with slightly higher SDs. To facilitate score comparisons by the community, we developed a user-friendly web server that produces structure ensembles for NMR and X-ray structures and is accessible at http://prodata.swmed.edu/SEnCS. Our work helps to identify the significance of GDT_TS score differences, as well as to provide structure ensembles for estimating SDs of any scores.
Mattos, Jose L; Schlosser, Rodney J; Mace, Jess C; Smith, Timothy L; Soler, Zachary M
2018-05-02
Olfactory-specific quality of life (QOL) can be measured using the Questionnaire of Olfactory Disorders Negative Statements (QOD-NS). Changes in the QOD-NS after treatment can be difficult to interpret since there is no standardized definition of clinically meaningful improvement. Patients with chronic rhinosinusitis (CRS) completed the QOD-NS. Four distribution-based methods were used to calculate the minimal clinically important difference (MCID): (1) one-half standard deviation (SD); (2) standard error of the mean (SEM); (3) Cohen's effect size (d) of the smallest unit of change; and (4) minimal detectable change (MDC). We also averaged all 4 of the scores together. Finally, the likelihood of achieving a MCID after sinus surgery using these methods, as well as average QOD-NS scores, was stratified by normal vs abnormal baseline QOD-NS scores. Outcomes were examined on 128 patients. The mean ± SD improvement in QOD-NS score after surgery was 4.3 ± 11.0 for the entire cohort and 9.6 ± 12.9 for those with abnormal baseline scores (p < 0.001). The MCID values using the different techniques were: (1) SD = 6.5; (2) SEM = 3.1; (3) d = 2.6; and (4) MDC = 8.6. The MCID score was 5.2 on average. For the total cohort analysis, the likelihood of reporting a MCID ranged from 26% to 51%, and 49% to 70% for patients reporting preoperative abnormal olfaction. Distribution-based MCID values of the QOD-NS range between 2.6 and 8.6 points, with an average of 5.2. When stratified by preoperative QOD-NS scores the majority of patients reporting abnormal preoperative QOD-NS scores achieved a MCID. © 2018 ARS-AAOA, LLC.
Exploring the Gender Gap in the Conceptual Survey of Electricity and Magnetism
ERIC Educational Resources Information Center
Henderson, Rachel; Stewart, Gay; Stewart, John; Michaluk, Lynnette; Traxler, Adrienne
2017-01-01
The "gender gap" on various physics conceptual evaluations has been extensively studied. Men's average pretest scores on the Force Concept Inventory and Force and Motion Conceptual Evaluation are 13% higher than women's, and post-test scores are on average 12% higher than women's. This study analyzed the gender differences within the…
Mauntel, Timothy C; Padua, Darin A; Stanley, Laura E; Frank, Barnett S; DiStefano, Lindsay J; Peck, Karen Y; Cameron, Kenneth L; Marshall, Stephen W
2017-11-01
The Landing Error Scoring System (LESS) can be used to identify individuals with an elevated risk of lower extremity injury. The limitation of the LESS is that raters identify movement errors from video replay, which is time-consuming and, therefore, may limit its use by clinicians. A markerless motion-capture system may be capable of automating LESS scoring, thereby removing this obstacle. To determine the reliability of an automated markerless motion-capture system for scoring the LESS. Cross-sectional study. United States Military Academy. A total of 57 healthy, physically active individuals (47 men, 10 women; age = 18.6 ± 0.6 years, height = 174.5 ± 6.7 cm, mass = 75.9 ± 9.2 kg). Participants completed 3 jump-landing trials that were recorded by standard video cameras and a depth camera. Their movement quality was evaluated by expert LESS raters (standard video recording) using the LESS rubric and by software that automates LESS scoring (depth-camera data). We recorded an error for a LESS item if it was present on at least 2 of 3 jump-landing trials. We calculated κ statistics, prevalence- and bias-adjusted κ (PABAK) statistics, and percentage agreement for each LESS item. Interrater reliability was evaluated between the 2 expert rater scores and between a consensus expert score and the markerless motion-capture system score. We observed reliability between the 2 expert LESS raters (average κ = 0.45 ± 0.35, average PABAK = 0.67 ± 0.34; percentage agreement = 0.83 ± 0.17). The markerless motion-capture system had similar reliability with consensus expert scores (average κ = 0.48 ± 0.40, average PABAK = 0.71 ± 0.27; percentage agreement = 0.85 ± 0.14). However, reliability was poor for 5 LESS items in both LESS score comparisons. A markerless motion-capture system had the same level of reliability as expert LESS raters, suggesting that an automated system can accurately assess movement. Therefore, clinicians can use the markerless motion-capture system to reliably score the LESS without being limited by the time requirements of manual LESS scoring.
Hyper-parenting is negatively associated with physical activity among 7-12year olds.
Janssen, Ian
2015-04-01
To explore associations between helicopter, little emperor, tiger mom, and concerted cultivation hyper-parenting styles with child physical activity. 724 North American parents of 7-12 year olds completed a survey (May, 2014) that assessed their engagement in the hyper-parenting styles and the frequency that their child played outdoors, walked/bicycled, and played organized sports. Z-scores were generated for each hyper-parenting style and four groups were created: low (<-1 SD), below average (-1 to -0.49 SD), average (-0.50 to 0.50 SD), above average (0.51 to 0.1.0 SD), and high (>1 SD). Outdoor play, active transportation, and organized sport did not differ across helicopter parenting groups. Children in the low little emperor group had higher (P<0.005) outdoor play and active transportation scores than children in the average, above average, and high groups (exception: high group for outdoor play). Children in the low tiger mom and concerted cultivation groups had higher (P<0.005) outdoor play, active transportation, and organized sport scores than children in the average, above average, and high groups (exceptions: average and high tiger mom groups for organized sport). Little emperor, tiger mom, and concerted cultivation parenting styles were associated with lower physical activity among 7-12 year olds. Copyright © 2015. Published by Elsevier Inc.
Academic status and progress of deaf and hard-of-hearing students in general education classrooms.
Antia, Shirin D; Jones, Patricia B; Reed, Susanne; Kreimeyer, Kathryn H
2009-01-01
The study participants were 197 deaf or hard-of-hearing students with mild to profound hearing loss who attended general education classes for 2 or more hours per day. We obtained scores on standardized achievement tests of math, reading, and language/writing, and standardized teacher's ratings of academic competence annually, for 5 years, together with other demographic and communication data. Results on standardized achievement tests indicated that, over the 5-year period, 63%-79% of students scored in the average or above-average range in math, 48%-68% in reading, and 55%-76% in language/writing. The standardized test scores for the group were, on average, half an SD below hearing norms. Average student progress in each subject area was consistent with or better than that made by the norm group of hearing students, and 79%-81% of students made one or more year's progress annually. Teachers rated 69%-81% of students as average or above average in academic competence over the 5 years. The teacher's ratings also indicated that 89% of students made average or above-average progress. Students' expressive and receptive communication, classroom participation, communication mode, and parental participation in school were significantly, but moderately, related to academic outcomes.
Bernard, Larry C; Walsh, R Patricia
2002-10-01
The present study replicated and extended earlier research on temporal sampling effects in university subject pools. Data were obtained from 236 participants, 79 men and 157 women, in a university subject pool during a 15-wk. semester. Without knowing the purpose of the study, participants self-selected to participate earlier (Weeks 4 and 5; n = 105) or later (Weeks 14 and 15; n = 131). Three hypotheses were investigated: (1) that the personality patterns of earlier and later participants on the NEO Personality Inventory-Revised and the Personality Research Form differ significantly, with earlier participants scoring higher on the latter scales reflecting social responsibility and higher on former Conscientiousness and Neuroticism scales; (2) that there are similar significant differences between participants in the earlier and later groups compared to the male and female college normative samples for the two tests: and (3) that earlier participants will have higher actual Scholastic Assessment Test scores and Grade Point Averages. Also investigated was whether participants' foreknowledge that their actual Scholastic Assessment Test scores and Grade Point Averages would be obtained would affect their accuracy of self-report. In contrast to prior research, neither the first nor second hypothesis was supported by the current study; there do not appear to be consistent differences on personality variables. However, the third hypothesis was supported. Earlier participants had higher actual high school Grade Point Average, college Grade Point Average, and Scholastic Assessment Test Verbal scores. Foreknowledge that actual Scholastic Assessment Test scores and Grade Point Averages would be obtained did not affect the accuracy of self-report. In addition, later participants significantly over-reported their scores, and significantly more women than men and more first-year than senior-year subjects participated in the early group.
Impact of Residency Training Redesign on Residents' Clinical Knowledge.
Waller, Elaine; Eiff, M Patrice; Dexter, Eve; Rinaldo, Jason C B; Marino, Miguel; Garvin, Roger; Douglass, Alan B; Phillips, Robert; Green, Larry A; Carney, Patricia A
2017-10-01
The In-training Examination (ITE) is a frequently used method to evaluate family medicine residents' clinical knowledge. We compared family medicine ITE scores among residents who trained in the 14 programs that participated in the Preparing the Personal Physician for Practice (P4) Project to national averages over time, and according to educational innovations. The ITE scores of 802 consenting P4 residents who trained in 2007 through 2011 were obtained from the American Board of Family Medicine. The primary analysis involved comparing scores within each academic year (2007 through 2011), according to program year (PGY) for P4 residents to all residents nationally. A secondary analysis compared ITE scores among residents in programs that experimented with length of training and compared scores among residents in programs that offered individualized education options with those that did not. Release of ITE scores was consented to by 95.5% of residents for this study. Scores of P4 residents were higher compared to national scores in each year. For example, in 2011, the mean P4 score for PGY1 was 401.2, compared to the national average of 386. For PGY2, the mean P4 score was 443.1, compared to the national average of 427, and for PGY3, the mean P4 score was 477.0, compared to the national PGY3 score of 456. Scores of residents in programs that experimented with length of training were similar to those in programs that did not. Scores were also similar between residents in programs with and without individualized education options. Family medicine residency programs undergoing substantial educational changes, including experiments in length of training and individualized education, did not appear to experience a negative effect on resident's clinical knowledge, as measured by ITE scores. Further research is needed to study the effect of a wide range of residency training innovations on ITE scores over time.
Baykal, Bahadir; Erdim, Ibrahim; Ozbay, Isa; Oghan, Fatih; Oncu, Fatih; Erdogdu, Zeynep; Kayhan, Fatma Tulin
2015-11-01
To investigate the relationship between body dysmorphic syndrome and self-esteem in rhinoplasty candidates. A negative statistical correlation was evident between Rosenberg Self-Esteem Scale (RSES) and Body Dysmorphic Disorder Examination-Self Report (BDDE-SR) scores. In terms of responses to the first Body Dysmorphic Disorder Questionnaire (BDDQ) question, which focuses on general attitude toward body dysmorphic syndrome, the average RSES "YES" score was significantly less than the "NO" score. No significant differences appeared between RSES scores and scores for the 4th subgroup of BDDQ questions (subgroups A, B, and C; these questions explore how much time is spent daily on maintenance of bodily appearance). However, significant differences appeared between scores for the 4th subgroup of BDDQ questions and BDDE-SR scores. The average BDD-SR score of subgroup A (less than 1 hour spent on bodily maintenance) was significantly lower than those of group B (1-3 hours) and group C (more than 3 hours). However, no significant differences appeared in average BDD-SR scores between subgroups B and C. In this prospective study, 56 patients (31 females and 25 males) were evaluated preoperatively using the BDDQ, the BDDE-SR, and the RSES. Patients younger than 15 years and those with deformities caused by trauma were excluded. Rhinoplasty candidates had higher levels of body dysmorphic disorder (BDD). Although patients with low RSES scores were more likely to have BDD, rhinoplasty candidates were not notably deficient in self-esteem. However, in rhinoplasty candidates with low RSES scores, the frequency of BDD was elevated. Therefore, the authors suggest that rhinoplasty candidates with low RSES scores should be investigated carefully in terms of BDD.
Kazerani, Maryam; Davoudian, Atefeh; Zayeri, Farid; Soori, Hamid
2017-01-01
Background: Systematic reviews and meta-analysis have significant advantages over conventional reviews in that all available data should be presented. This study aimed to evaluate Iranian systematic reviews and meta-analysis abstracts indexed in WOS and Scopus during 2003-2012 based on PRISMA checklist. Methods: This is an analytical study. We evaluated 46 article abstracts indexed in WOS, 89 article abstracts indexed in Scopus and 158 article abstracts indexed in WOS and Scopus both (overlapped group). The quality of the abstracts was evaluated according to the PRISMA checklist for abstracts. Some indicators including distribution per year, total citation, average citations per year, average citations per documents and average citations per year in each article were determined through searching the WOS and Scopus Databases' analytical section. Then, the correlations between the abstract's PRISMA scores, average citations per year, and publication year were calculated. Results: The abstract's quality is not desirable as far as the PRISMA criteria are concerned. In other words, none of the articles' abstracts is in line with the PRISMA items. The average of scores of the current study was 5.9 while the maximum score was 12. The PRISMA criteria showed the highest compliance with "Objectives" (98.6%), the second highest with "Synthesis of result" (85%) and "Title" (80.2%) and the lowest compliance with "Registration" (2%). There was a positive correlation between the compliance of PRISMA score and the average citations per year while there was a negative correlation between PRISMA score and the publication year. Conclusion: It seems that the suggested criteria for reporting Iranian systematic reviews and meta-analysis are not considered adequately by the writers and even scientific journal editors.
Kazerani, Maryam; Davoudian, Atefeh; Zayeri, Farid; Soori, Hamid
2017-01-01
Background: Systematic reviews and meta-analysis have significant advantages over conventional reviews in that all available data should be presented. This study aimed to evaluate Iranian systematic reviews and meta-analysis abstracts indexed in WOS and Scopus during 2003-2012 based on PRISMA checklist. Methods: This is an analytical study. We evaluated 46 article abstracts indexed in WOS, 89 article abstracts indexed in Scopus and 158 article abstracts indexed in WOS and Scopus both (overlapped group). The quality of the abstracts was evaluated according to the PRISMA checklist for abstracts. Some indicators including distribution per year, total citation, average citations per year, average citations per documents and average citations per year in each article were determined through searching the WOS and Scopus Databases’ analytical section. Then, the correlations between the abstract's PRISMA scores, average citations per year, and publication year were calculated. Results: The abstract’s quality is not desirable as far as the PRISMA criteria are concerned. In other words, none of the articles’ abstracts is in line with the PRISMA items. The average of scores of the current study was 5.9 while the maximum score was 12. The PRISMA criteria showed the highest compliance with "Objectives" (98.6%), the second highest with "Synthesis of result" (85%) and "Title" (80.2%) and the lowest compliance with "Registration" (2%). There was a positive correlation between the compliance of PRISMA score and the average citations per year while there was a negative correlation between PRISMA score and the publication year. Conclusion: It seems that the suggested criteria for reporting Iranian systematic reviews and meta-analysis are not considered adequately by the writers and even scientific journal editors. PMID:28955668
Care and Justice orientations to moral decision making in veterinary students.
Quinn, C; Kinnison, T; May, S A
2012-11-03
An adapted version of the Moral Justification Scale was used to assess moral decision-making orientation in veterinary students, comparing sex and year of study. The Scale consists of vignettes and related statements, each of which was classified as Justice, Care for People or Care for Animals. The importance of each statement in the decision-making process was rated by 204 students on a 10-point Likert Scale. An average score of importance for Justice, Care for People and Care for Animals related statements were calculated for each individual. General inclination scores were calculated by subtracting an individual's average Care score from their average Justice score. Inclination scores suggested that two-thirds of students have a balanced approach, using Justice and Care almost equally in approaching ethical dilemmas. The majority of students, however, show an overall Justice orientation. The attitude towards the importance of Justice did not vary between students of different years or sexes. Students' attitudes towards the importance of Care for People in their decision making were, however, significantly lower for final-year students. Reasons hypothesised include the start of placements. Care for Animals scores were affected by sex, whereby females give more importance to such statements than males.
Chen, H; Hu, X; Yang, G; Xiang, M
2017-04-01
Minimal invasive plate osteosynthesis (MIPO) is one of the most important techniques in the treatment for humeral shaft fractures. This study was performed to evaluate the efficacy of MIPO technique for the treatment for humeral shaft fractures. We retrospectively evaluated 128 cases with humeral shaft fractures that were treated with MIPO technique from March 2005 to August 2008. All the patients were followed up by routine radiological imaging and clinical examinations. Constant-Murley score and HSS elbow joint score were used to evaluate the treatment outcome. The average duration of the surgery was 60 min (range 40-95 min) without blood transfusion. All fractures healed without infection. All cases recovered carrying angle except four cases with 10°-15° cubitus varus. After the average follow-up of 23 (13-38) months, satisfactory function was achieved according to Constant-Murley score and HSS elbow joint score. Constant-Murley score was 80 on average (range 68-91). According to HSS elbow joint score, there were 123 cases of excellent clinical outcome and five cases of effective outcome. It seems to be a safe and effective method for managing humeral shaft fractures with MIPO technique.
Yuta, Atsushi; Ukai, Kotaro; Sakakura, Yasuo; Tani, Hideshi; Matsuda, Fukiko; Yang, Tian-qun; Majima, Yuichi
2002-07-01
We made a prediction of the Japanese cedar (Cryptomeria japonica) pollen counts at Tsu city based on male flower-setting conditions of standard trees. The 69 standard trees from 23 kinds of clones, planted at Mie Prefecture Science and Technology Promotion Center (Hakusan, Mie) in 1964, were selected. Male flower-setting conditions for 276 faces (69 trees x 4 points of the compass) were scored from 0 to 3. The average of scores and total pollen counts from 1988 to 2000 was analyzed. As the results, the average scores from standard trees and total pollen counts except two mass pollen-scattered years in 1995 and 2000 had a positive correlation (r = 0.914) by linear function. On the mass pollen-scattered years, pollen counts were influenced from the previous year. Therefore, the score of the present year minus that of the previous year were used for analysis. The average scores from male flower-setting conditions and pollen counts had a strong positive correlation (r = 0.994) when positive scores by taking account of the previous year were analyzed. We conclude that prediction of pollen counts are possible based on the male flower-setting conditions of standard trees.
NASA Astrophysics Data System (ADS)
Kim, Kwang Hyeon; Lee, Suk; Shim, Jang Bo; Yang, Dae Sik; Yoon, Won Sup; Park, Young Je; Kim, Chul Yong; Cao, Yuan Jie; Chang, Kyung Hwan
2018-01-01
The aim of this study was to derive a new plan-scoring index using normal tissue complication probabilities to verify different plans in the selection of personalized treatment. Plans for 12 patients treated with tomotherapy were used to compare scoring for ranking. Dosimetric and biological indexes were analyzed for the plans for a clearly distinguishable group ( n = 7) and a similar group ( n = 12), using treatment plan verification software that we developed. The quality factor ( QF) of our support software for treatment decisions was consistent with the final treatment plan for the clearly distinguishable group (average QF = 1.202, 100% match rate, n = 7) and the similar group (average QF = 1.058, 33% match rate, n = 12). Therefore, we propose a normal tissue complication probability (NTCP) based on the plan scoring index for verification of different plans for personalized treatment-plan selection. Scoring using the new QF showed a 100% match rate (average NTCP QF = 1.0420). The NTCP-based new QF scoring method was adequate for obtaining biological verification quality and organ risk saving using the treatment-planning decision-support software we developed for prostate cancer.
Sisson, Stephen D; Bertram, Amanda; Yeh, Hsin-Chieh
2015-03-01
A core objective of residency education is to facilitate learning, and programs need more curricula and assessment tools with demonstrated validity evidence. We sought to demonstrate concurrent validity between performance on a widely shared, ambulatory curriculum (the Johns Hopkins Internal Medicine Curriculum), the Internal Medicine In-Training Examination (IM-ITE), and the American Board of Internal Medicine Certifying Examination (ABIM-CE). A cohort study of 443 postgraduate year (PGY)-3 residents at 22 academic and community hospital internal medicine residency programs using the curriculum through the Johns Hopkins Internet Learning Center (ILC). Total and percentile rank scores on ILC didactic modules were compared with total and percentile rank scores on the IM-ITE and total scores on the ABIM-CE. The average score on didactic modules was 80.1%; the percentile rank was 53.8. The average IM-ITE score was 64.1% with a percentile rank of 54.8. The average score on the ABIM-CE was 464. Scores on the didactic modules, IM-ITE, and ABIM-CE correlated with each other (P < .05). Residents completing greater numbers of didactic modules, regardless of scores, had higher IM-ITE total and percentile rank scores (P < .05). Resident performance on modules covering back pain, hypertension, preoperative evaluation, and upper respiratory tract infection was associated with IM-ITE percentile rank. Performance on a widely shared ambulatory curriculum is associated with performance on the IM-ITE and the ABIM-CE.
Song, You Hong; Chang, Hyun Jung; Shin, Yong Beom; Park, Young Sook; Park, Yun Hee; Cho, Eun Sol
2018-04-01
To evaluate the validity of the Test of Infant Motor Performance (TIMP) and general movements (GMs) assessment for predicting Alberta Infant Motor Scale (AIMS) score at 12 months in preterm infants. A total of 44 preterm infants who underwent the GMs and TIMP at 1 month and 3 months of corrected age (CA) and whose motor performance was evaluated using AIMS at 12 months CA were included. GMs were judged as abnormal on basis of poor repertoire or cramped-synchronized movements at 1 month CA and abnormal or absent fidgety movement at 3 months CA. TIMP and AIMS scores were categorized as normal (average and low average and >5th percentile, respectively) or abnormal (below average and far below average or <5th percentile, respectively). Correlations between GMs and TIMP scores at 1 month and 3 months CA and the AIMS classification at 12 months CA were examined. The TIMP score at 3 months CA and GMs at 1 month and 3 months CA were significantly correlated with the motor performance at 12 months CA. However, the TIMP score at 1 month CA did not correlate with the AIMS classification at 12 months CA. For infants with normal GMs at 3 months CA, the TIMP score at 3 months CA correlated significantly with the AIMS classification at 12 months CA. Our findings suggest that neuromotor assessment using GMs and TIMP could be useful to identify preterm infants who are likely to benefit from intervention.
The Nation's Report Card Reading 2011 State Snapshot Report. Oregon. Grade 8, Public Schools
ERIC Educational Resources Information Center
National Center for Education Statistics, 2011
2011-01-01
Each state and jurisdiction that participated in the National Assessment of Educational Progress (NAEP) 2011 reading assessment receives a one-page snapshot report that presents key findings and trends in a condensed format. Overall results, achievement level percentages and average score results, comparison of the average score in 2011 to other…
The Nation's Report Card Reading 2011 State Snapshot Report. Oregon. Grade 4, Public Schools
ERIC Educational Resources Information Center
National Center for Education Statistics, 2011
2011-01-01
Each state and jurisdiction that participated in the National Assessment of Educational Progress (NAEP) 2011 reading assessment receives a one-page snapshot report that presents key findings and trends in a condensed format. Overall results, achievement level percentages and average score results, comparison of the average score in 2011 to other…
The Nation's Report Card Mathematics 2011 State Snapshot Report. Oregon. Grade 4, Public Schools
ERIC Educational Resources Information Center
National Center for Education Statistics, 2011
2011-01-01
Each state and jurisdiction that participated in the National Assessment of Educational Progress (NAEP) 2011 mathematics assessment receives a one-page snapshot report that presents key findings and trends in a condensed format. Overall results, achievement level percentages and average score results, comparison of the average score in 2011 to…
The Nation's Report Card Mathematics 2011 State Snapshot Report. Oregon. Grade 8, Public Schools
ERIC Educational Resources Information Center
National Center for Education Statistics, 2011
2011-01-01
Each state and jurisdiction that participated in the National Assessment of Educational Progress (NAEP) 2011 mathematics assessment receives a one-page snapshot report that presents key findings and trends in a condensed format. Overall results, achievement level percentages and average score results, comparison of the average score in 2011 to…
The Nation's Report Card Reading 2011 State Snapshot Report. Minnesota. Grade 4, Public Schools
ERIC Educational Resources Information Center
National Center for Education Statistics, 2011
2011-01-01
Each state and jurisdiction that participated in the National Assessment of Educational Progress (NAEP) 2011 reading assessment receives a one-page snapshot report that presents key findings and trends in a condensed format. Overall results, achievement level percentages and average score results, comparison of the average score in 2011 to other…
The Nation's Report Card Mathematics 2011 State Snapshot Report. Minnesota. Grade 4, Public Schools
ERIC Educational Resources Information Center
National Center for Education Statistics, 2011
2011-01-01
Each state and jurisdiction that participated in the National Assessment of Educational Progress (NAEP) 2011 reading assessment receives a one-page snapshot report that presents key findings and trends in a condensed format. Overall results, achievement level percentages and average score results, comparison of the average score in 2011 to other…
The Nation's Report Card Mathematics 2011 State Snapshot Report. Minnesota. Grade 8, Public Schools
ERIC Educational Resources Information Center
National Center for Education Statistics, 2011
2011-01-01
Each state and jurisdiction that participated in the National Assessment of Educational Progress (NAEP) 2011 mathematics assessment receives a one-page snapshot report that presents key findings and trends in a condensed format. Overall results, achievement level percentages and average score results, comparison of the average score in 2011 to…
The Nation's Report Card Reading 2011 State Snapshot Report. Minnesota. Grade 8, Public Schools
ERIC Educational Resources Information Center
National Center for Education Statistics, 2011
2011-01-01
Each state and jurisdiction that participated in the National Assessment of Educational Progress (NAEP) 2011 reading assessment receives a one-page snapshot report that presents key findings and trends in a condensed format. Overall results, achievement level percentages and average score results, comparison of the average score in 2011 to other…
ERIC Educational Resources Information Center
National Center for Education Statistics, 2011
2011-01-01
Each state and jurisdiction that participated in the National Assessment of Educational Progress (NAEP) 2011 mathematics assessment receives a one-page snapshot report that presents key findings and trends in a condensed format. Overall results, achievement level percentages and average score results, comparison of the average score in 2011 to…
The Nation's Report Card Reading 2011 State Snapshot Report. West Virginia. Grade 8, Public Schools
ERIC Educational Resources Information Center
National Center for Education Statistics, 2011
2011-01-01
Each state and jurisdiction that participated in the National Assessment of Educational Progress (NAEP) 2011 reading assessment receives a one-page snapshot report that presents key findings and trends in a condensed format. Overall results, achievement level percentages and average score results, comparison of the average score in 2011 to other…
The Nation's Report Card Reading 2009 State Snapshot Report. West Virginia. Grade 4, Public Schools
ERIC Educational Resources Information Center
National Center for Education Statistics, 2010
2010-01-01
Each state and jurisdiction that participated in the National Assessment of Educational Progress (NAEP) 2009 reading assessment receives a one-page snapshot report that presents key findings and trends in a condensed format. Overall results, achievement level percentages and average score results, comparison of the average score in 2009 to other…
ERIC Educational Resources Information Center
National Center for Education Statistics, 2011
2011-01-01
Each state and jurisdiction that participated in the National Assessment of Educational Progress (NAEP) 2011 mathematics assessment receives a one-page snapshot report that presents key findings and trends in a condensed format. Overall results, achievement level percentages and average score results, comparison of the average score in 2011 to…
The Nation's Report Card Reading 2009 State Snapshot Report. West Virginia. Grade 8, Public Schools
ERIC Educational Resources Information Center
National Center for Education Statistics, 2010
2010-01-01
Each state and jurisdiction that participated in the National Assessment of Educational Progress (NAEP) 2009 reading assessment receives a one-page snapshot report that presents key findings and trends in a condensed format. Overall results, achievement level percentages and average score results, comparison of the average score in 2009 to other…
The Nation's Report Card Reading 2011 State Snapshot Report. West Virginia. Grade 4, Public Schools
ERIC Educational Resources Information Center
National Center for Education Statistics, 2011
2011-01-01
Each state and jurisdiction that participated in the National Assessment of Educational Progress (NAEP) 2011 reading assessment receives a one-page snapshot report that presents key findings and trends in a condensed format. Overall results, achievement level percentages and average score results, comparison of the average score in 2011 to other…
ERIC Educational Resources Information Center
Bromberg, Marni; Theokas, Christina
2013-01-01
Typically, achievement gaps between groups of students are measured as either differences in average scores or differences in proficiency rates. But, practitioners, policymakers, and researchers have long recognized that these approaches don't tell the whole story. Average scores, for example, are good at summarizing trends but can mask real…
The Nation's Report Card Reading 2009 State Snapshot Report. Idaho. Grade 8, Public Schools
ERIC Educational Resources Information Center
National Center for Education Statistics, 2010
2010-01-01
Each state and jurisdiction that participated in the National Assessment of Educational Progress (NAEP) 2009 reading assessment receives a one-page snapshot report that presents key findings and trends in a condensed format. Overall results, achievement level percentages and average score results, comparison of the average score in 2009 to other…
The Nation's Report Card Mathematics 2011 State Snapshot Report. Idaho. Grade 8, Public Schools
ERIC Educational Resources Information Center
National Center for Education Statistics, 2011
2011-01-01
Each state and jurisdiction that participated in the National Assessment of Educational Progress (NAEP) 2011 mathematics assessment receives a one-page snapshot report that presents key findings and trends in a condensed format. Overall results, achievement level percentages and average score results, comparison of the average score in 2011 to…
The Nation's Report Card Reading 2009 State Snapshot Report. Idaho. Grade 4, Public Schools
ERIC Educational Resources Information Center
National Center for Education Statistics, 2010
2010-01-01
Each state and jurisdiction that participated in the National Assessment of Educational Progress (NAEP) 2009 reading assessment receives a one-page snapshot report that presents key findings and trends in a condensed format. Overall results, achievement level percentages and average score results, comparison of the average score in 2009 to other…
The Nation's Report Card Reading 2011 State Snapshot Report. Idaho. Grade 8, Public Schools
ERIC Educational Resources Information Center
National Center for Education Statistics, 2011
2011-01-01
Each state and jurisdiction that participated in the National Assessment of Educational Progress (NAEP) 2011 reading assessment receives a one-page snapshot report that presents key findings and trends in a condensed format. Overall results, achievement level percentages and average score results, comparison of the average score in 2011 to other…
The Nation's Report Card Reading 2011 State Snapshot Report. Idaho. Grade 4, Public Schools
ERIC Educational Resources Information Center
National Center for Education Statistics, 2011
2011-01-01
Each state and jurisdiction that participated in the National Assessment of Educational Progress (NAEP) 2011 reading assessment receives a one-page snapshot report that presents key findings and trends in a condensed format. Overall results, achievement level percentages and average score results, comparison of the average score in 2011 to other…
The Nation's Report Card Mathematics 2011 State Snapshot Report. Idaho. Grade 4, Public Schools
ERIC Educational Resources Information Center
National Center for Education Statistics, 2011
2011-01-01
Each state and jurisdiction that participated in the National Assessment of Educational Progress (NAEP) 2011 reading assessment receives a one-page snapshot report that presents key findings and trends in a condensed format. Overall results, achievement level percentages and average score results, comparison of the average score in 2011 to other…
The Nation's Report Card Reading 2011 State Snapshot Report. New Hampshire. Grade 8, Public Schools
ERIC Educational Resources Information Center
National Center for Education Statistics, 2011
2011-01-01
Each state and jurisdiction that participated in the National Assessment of Educational Progress (NAEP) 2011 reading assessment receives a one-page snapshot report that presents key findings and trends in a condensed format. Overall results, achievement level percentages and average score results, comparison of the average score in 2011 to other…
The Nation's Report Card Reading 2011 State Snapshot Report. New Hampshire. Grade 4, Public Schools
ERIC Educational Resources Information Center
National Center for Education Statistics, 2011
2011-01-01
Each state and jurisdiction that participated in the National Assessment of Educational Progress (NAEP) 2011 reading assessment receives a one-page snapshot report that presents key findings and trends in a condensed format. Overall results, achievement level percentages and average score results, comparison of the average score in 2011 to other…
ERIC Educational Resources Information Center
National Center for Education Statistics, 2011
2011-01-01
Each state and jurisdiction that participated in the National Assessment of Educational Progress (NAEP) 2011 reading assessment receives a one-page snapshot report that presents key findings and trends in a condensed format. Overall results, achievement level percentages and average score results, comparison of the average score in 2011 to other…
The Nation's Report Card Reading 2009 State Snapshot Report. New Hampshire. Grade 4, Public Schools
ERIC Educational Resources Information Center
National Center for Education Statistics, 2010
2010-01-01
Each state and jurisdiction that participated in the National Assessment of Educational Progress (NAEP) 2009 reading assessment receives a one-page snapshot report that presents key findings and trends in a condensed format. Overall results, achievement level percentages and average score results, comparison of the average score in 2009 to other…
ERIC Educational Resources Information Center
National Center for Education Statistics, 2011
2011-01-01
Each state and jurisdiction that participated in the National Assessment of Educational Progress (NAEP) 2011 mathematics assessment receives a one-page snapshot report that presents key findings and trends in a condensed format. Overall results, achievement level percentages and average score results, comparison of the average score in 2011 to…
The Nation's Report Card Reading 2009 State Snapshot Report. New Hampshire. Grade 8, Public Schools
ERIC Educational Resources Information Center
National Center for Education Statistics, 2010
2010-01-01
Each state and jurisdiction that participated in the National Assessment of Educational Progress (NAEP) 2009 reading assessment receives a one-page snapshot report that presents key findings and trends in a condensed format. Overall results, achievement level percentages and average score results, comparison of the average score in 2009 to other…
ERIC Educational Resources Information Center
Mayo, Sandra Sims
2012-01-01
Improving college performance and retention is a daunting task for colleges and universities. Many institutions are taking action to increase retention rates by exploring their academic programs. Regression analysis was used to compare the effectiveness of ACT mathematics scores, high school grade point averages (HSGPA), and demographic factors…
The Nation's Report Card Reading 2011 State Snapshot Report. Hawaii. Grade 4, Public Schools
ERIC Educational Resources Information Center
National Center for Education Statistics, 2011
2011-01-01
Each state and jurisdiction that participated in the National Assessment of Educational Progress (NAEP) 2011 reading assessment receives a one-page snapshot report that presents key findings and trends in a condensed format. Overall results, achievement level percentages and average score results, comparison of the average score in 2011 to other…
The Nation's Report Card Reading 2009 State Snapshot Report. Hawaii. Grade 4, Public Schools
ERIC Educational Resources Information Center
National Center for Education Statistics, 2010
2010-01-01
Each state and jurisdiction that participated in the National Assessment of Educational Progress (NAEP) 2009 reading assessment receives a one-page snapshot report that presents key findings and trends in a condensed format. Overall results, achievement level percentages and average score results, comparison of the average score in 2009 to other…
The Nation's Report Card Mathematics 2011 State Snapshot Report. Hawaii. Grade 8, Public Schools
ERIC Educational Resources Information Center
National Center for Education Statistics, 2011
2011-01-01
Each state and jurisdiction that participated in the National Assessment of Educational Progress (NAEP) 2011 mathematics assessment receives a one-page snapshot report that presents key findings and trends in a condensed format. Overall results, achievement level percentages and average score results, comparison of the average score in 2011 to…
The Nation's Report Card Reading 2009 State Snapshot Report. Hawaii. Grade 8, Public Schools
ERIC Educational Resources Information Center
National Center for Education Statistics, 2010
2010-01-01
Each state and jurisdiction that participated in the National Assessment of Educational Progress (NAEP) 2009 reading assessment receives a one-page snapshot report that presents key findings and trends in a condensed format. Overall results, achievement level percentages and average score results, comparison of the average score in 2009 to other…
The Nation's Report Card Reading 2011 State Snapshot Report. Hawaii. Grade 8, Public Schools
ERIC Educational Resources Information Center
National Center for Education Statistics, 2011
2011-01-01
Each state and jurisdiction that participated in the National Assessment of Educational Progress (NAEP) 2011 reading assessment receives a one-page snapshot report that presents key findings and trends in a condensed format. Overall results, achievement level percentages and average score results, comparison of the average score in 2011 to other…
The Nation's Report Card Mathematics 2011 State Snapshot Report. Hawaii. Grade 4, Public Schools
ERIC Educational Resources Information Center
National Center for Education Statistics, 2011
2011-01-01
Each state and jurisdiction that participated in the National Assessment of Educational Progress (NAEP) 2011 reading assessment receives a one-page snapshot report that presents key findings and trends in a condensed format. Overall results, achievement level percentages and average score results, comparison of the average score in 2011 to other…
The Nation's Report Card Reading 2011 State Snapshot Report. DoDEA. Grade 4, Public Schools
ERIC Educational Resources Information Center
National Center for Education Statistics, 2011
2011-01-01
Each state and jurisdiction that participated in the National Assessment of Educational Progress (NAEP) 2011 reading assessment receives a one-page snapshot report that presents key findings and trends in a condensed format. Overall results, achievement level percentages and average score results, comparison of the average score in 2011 to other…
The Nation's Report Card Mathematics 2011 State Snapshot Report. DoDEA. Grade 4, Public Schools
ERIC Educational Resources Information Center
National Center for Education Statistics, 2011
2011-01-01
Each state and jurisdiction that participated in the National Assessment of Educational Progress (NAEP) 2011 mathematics assessment receives a one-page snapshot report that presents key findings and trends in a condensed format. Overall results, achievement level percentages and average score results, comparison of the average score in 2011 to…
The Nation's Report Card Reading 2011 State Snapshot Report. DoDEA. Grade 8, Public Schools
ERIC Educational Resources Information Center
National Center for Education Statistics, 2011
2011-01-01
Each state and jurisdiction that participated in the National Assessment of Educational Progress (NAEP) 2011 reading assessment receives a one-page snapshot report that presents key findings and trends in a condensed format. Overall results, achievement level percentages and average score results, comparison of the average score in 2011 to other…
The Nation's Report Card Reading 2009 State Snapshot Report. DoDEA. Grade 4, Public Schools
ERIC Educational Resources Information Center
National Center for Education Statistics, 2010
2010-01-01
Each state and jurisdiction that participated in the National Assessment of Educational Progress (NAEP) 2009 reading assessment receives a one-page snapshot report that presents key findings and trends in a condensed format. Overall results, achievement level percentages and average score results, comparison of the average score in 2009 to other…
The Nation's Report Card Mathematics 2011 State Snapshot Report. DoDEA. Grade 8, Public Schools
ERIC Educational Resources Information Center
National Center for Education Statistics, 2011
2011-01-01
Each state and jurisdiction that participated in the National Assessment of Educational Progress (NAEP) 2011 mathematics assessment receives a one-page snapshot report that presents key findings and trends in a condensed format. Overall results, achievement level percentages and average score results, comparison of the average score in 2011 to…
The Nation's Report Card Reading 2009 State Snapshot Report. DoDEA. Grade 8, Public Schools
ERIC Educational Resources Information Center
National Center for Education Statistics, 2010
2010-01-01
Each state and jurisdiction that participated in the National Assessment of Educational Progress (NAEP) 2009 reading assessment receives a one-page snapshot report that presents key findings and trends in a condensed format. Overall results, achievement level percentages and average score results, comparison of the average score in 2009 to other…
ERIC Educational Resources Information Center
Donsky, Aaron P.; Judge, Albert J., Jr.
Academic and nonacademic variables that may predict persistence in the nursing program at Lakeland Community College, Ohio, were studied. The academic variables included American College Testing program standard scores, National League for Nursing (NLN) rank scores, high school grade point average, and previous college grade point average. The…
NASA Astrophysics Data System (ADS)
Lark, Adam
Scientific Community Laboratories, developed by The University of Maryland, have shown initial promise as laboratories meant to emulate the practice of doing physics. These laboratories have been re-created by incorporating their design elements with the University of Toledo course structure and resources. The laboratories have been titled the Scientific Learning Community (SLC) Laboratories. A comparative study between these SLC laboratories and the University of Toledo physics department's traditional laboratories was executed during the fall 2012 semester on first semester calculus-based physics students. Three tests were executed as pre-test and post-tests to capture the change in students' concept knowledge, attitudes, and understanding of uncertainty. The Force Concept Inventory (FCI) was used to evaluate students' conceptual changes through the semester and average normalized gains were compared between both traditional and SLC laboratories. The Colorado Learning Attitudes about Science Survey for Experimental Physics (E-CLASS) was conducted to elucidate students' change in attitudes through the course of each laboratory. Finally, interviews regarding data analysis and uncertainty were transcribed and coded to track changes in the way students understand uncertainty and data analysis in experimental physics after their participation in both laboratory type. Students in the SLC laboratories showed a notable an increase conceptual knowledge and attitudes when compared to traditional laboratories. SLC students' understanding of uncertainty showed most improvement, diverging completely from students in the traditional laboratories, who declined throughout the semester.
Factors related to student performance in statistics courses in Lebanon
NASA Astrophysics Data System (ADS)
Naccache, Hiba Salim
The purpose of the present study was to identify factors that may contribute to business students in Lebanese universities having difficulty in introductory and advanced statistics courses. Two statistics courses are required for business majors at Lebanese universities. Students are not obliged to be enrolled in any math courses prior to taking statistics courses. Drawing on recent educational research, this dissertation attempted to identify the relationship between (1) students’ scores on Lebanese university math admissions tests; (2) students’ scores on a test of very basic mathematical concepts; (3) students’ scores on the survey of attitude toward statistics (SATS); (4) course performance as measured by students’ final scores in the course; and (5) their scores on the final exam. Data were collected from 561 students enrolled in multiple sections of two courses: 307 students in the introductory statistics course and 260 in the advanced statistics course in seven campuses across Lebanon over one semester. The multiple regressions results revealed four significant relationships at the introductory level: between students’ scores on the math quiz with their (1) final exam scores; (2) their final averages; (3) the Cognitive subscale of the SATS with their final exam scores; and (4) their final averages. These four significant relationships were also found at the advanced level. In addition, two more significant relationships were found between students’ final average and the two subscales of Effort (5) and Affect (6). No relationship was found between students’ scores on the admission math tests and both their final exam scores and their final averages in both the introductory and advanced level courses. On the other hand, there was no relationship between students’ scores on Lebanese admissions tests and their final achievement. Although these results were consistent across course formats and instructors, they may encourage Lebanese universities to assess the effectiveness of prerequisite math courses. Moreover, these findings may lead the Lebanese Ministry of Education to make changes to the admissions exams, course prerequisites, and course content. Finally, to enhance the attitude of students, new learning techniques, such as group work during class meetings can be helpful, and future research should aim to test the effectiveness of these pedagogical techniques on students’ attitudes toward statistics.
DOE Office of Scientific and Technical Information (OSTI.GOV)
Granville, DA; Sawakuchi, GO
2014-08-15
In this work, we demonstrate inconsistencies in commonly used Monte Carlo methods of scoring linear energy transfer (LET) in proton therapy beams. In particle therapy beams, the LET is an important parameter because the relative biological effectiveness (RBE) depends on it. LET is often determined using Monte Carlo techniques. We used a realistic Monte Carlo model of a proton therapy nozzle to score proton LET in spread-out Bragg peak (SOBP) depth-dose distributions. We used three different scoring and calculation techniques to determine average LET at varying depths within a 140 MeV beam with a 4 cm SOBP and a 250more » MeV beam with a 10 cm SOBP. These techniques included fluence-weighted (Φ-LET) and dose-weighted average (D-LET) LET calculations from: 1) scored energy spectra converted to LET spectra through a lookup table, 2) directly scored LET spectra and 3) accumulated LET scored ‘on-the-fly’ during simulations. All protons (primary and secondary) were included in the scoring. Φ-LET was found to be less sensitive to changes in scoring technique than D-LET. In addition, the spectral scoring methods were sensitive to low-energy (high-LET) cutoff values in the averaging. Using cutoff parameters chosen carefully for consistency between techniques, we found variations in Φ-LET values of up to 1.6% and variations in D-LET values of up to 11.2% for the same irradiation conditions, depending on the method used to score LET. Variations were largest near the end of the SOBP, where the LET and energy spectra are broader.« less
A supplemental video teaching tool enhances splinting skills.
Mehrpour, Saeed Reza; Aghamirsalim, Mohamadreza; Motamedi, Seyed Mohammad Kalantar; Ardeshir Larijani, Fatemeh; Sorbi, Reza
2013-02-01
The ability to apply casts and splints is a technical skill that requires practice and understanding of basic principles of musculoskeletal medicine. A video in which a given procedure is simulated on a dummy can represent reality under controlled conditions. A decrease in physician competency in musculoskeletal medicine is the result of educational deficiencies at the medical school level. We asked whether (1) a supplemental video educational program enhances performance of medical students' musculoskeletal clinical skills and (2) factors such as the proportion of orthopaedic professors to students, sex, age, and previous scores of medical students affected the clinical skills of medical students. We allocated 474 medical students into one of two groups: all participants received 90 minutes of lecture instruction on how to splint and cast but one group viewed the supplemental instructional video and the other did not. There were no differences in terms of sex, age, basic science exam scores, or grade point average of the groups. Thirteen specific skills in splinting an injured limb were evaluated. We recorded grade point averages. We developed a 10-point scoring system and graded each student on their splinting skills 6 months after the lectures. The medical students who watched the video had an average score of 7.6, whereas the control group's average score was 2.0. We observed a positive association between watching the educational video and clinical exam score. A higher professor-to-student ratio was associated with lower student Objective Structured Clinical Examination score. Our observations suggest a supplemental video instructional program improved the performance of musculoskeletal clinical skills in comparison to only a traditional lecture series.
Thoma, Brent; Sebok-Syer, Stefanie S; Colmers-Gray, Isabelle; Sherbino, Jonathan; Ankel, Felix; Trueger, N Seth; Grock, Andrew; Siemens, Marshall; Paddock, Michael; Purdy, Eve; Kenneth Milne, William; Chan, Teresa M
2018-01-30
Construct: We investigated the quality of emergency medicine (EM) blogs as educational resources. Online medical education resources such as blogs are increasingly used by EM trainees and clinicians. However, quality evaluations of these resources using gestalt are unreliable. We investigated the reliability of two previously derived quality evaluation instruments for blogs. Sixty English-language EM websites that published clinically oriented blog posts between January 1 and February 24, 2016, were identified. A random number generator selected 10 websites, and the 2 most recent clinically oriented blog posts from each site were evaluated using gestalt, the Academic Life in Emergency Medicine (ALiEM) Approved Instructional Resources (AIR) score, and the Medical Education Translational Resources: Impact and Quality (METRIQ-8) score, by a sample of medical students, EM residents, and EM attendings. Each rater evaluated all 20 blog posts with gestalt and 15 of the 20 blog posts with the ALiEM AIR and METRIQ-8 scores. Pearson's correlations were calculated between the average scores for each metric. Single-measure intraclass correlation coefficients (ICCs) evaluated the reliability of each instrument. Our study included 121 medical students, 88 EM residents, and 100 EM attendings who completed ratings. The average gestalt rating of each blog post correlated strongly with the average scores for ALiEM AIR (r = .94) and METRIQ-8 (r = .91). Single-measure ICCs were fair for gestalt (0.37, IQR 0.25-0.56), ALiEM AIR (0.41, IQR 0.29-0.60) and METRIQ-8 (0.40, IQR 0.28-0.59). The average scores of each blog post correlated strongly with gestalt ratings. However, neither ALiEM AIR nor METRIQ-8 showed higher reliability than gestalt. Improved reliability may be possible through rater training and instrument refinement.
ERIC Educational Resources Information Center
Linn, Robert L.; And Others
Norm-referenced test results reported by states and school districts and factors related to those scores were studied through mail and telephone surveys of 35 states and a nationally representative sample of 153 school districts to determine the degree to which "above average" results were being reported. Part of the stimulus for this…
Financial Literacy Skills of Students in Urban and Rural High Schools
ERIC Educational Resources Information Center
Valentine, Gregory P.; Khayum, Mohammed
2005-01-01
The purpose of this study was to determine the affect of various demographic and economic socialization factors on the results of a personal finance literacy quiz administered to rural and urban high school students in Indiana. Urban students had an average score of 50% on the quiz and rural students had a an average score of 51%. Planning to…
Changes in Student Populations and Average Test Scores of Dutch Primary Schools
ERIC Educational Resources Information Center
Luyten, Hans; de Wolf, Inge
2011-01-01
This article focuses on the relation between student population characteristics and average test scores per school in the final grade of primary education from a dynamic perspective. Aggregated data of over 5,000 Dutch primary schools covering a 6-year period were used to study the relation between changes in school populations and shifts in mean…
Mehrabi, F; Nasiripour, A; Delgoshaei, B
2008-01-01
The key factor for the success of total quality management programs in an organization is focusing on the customer. The purpose of this paper is to assess customer focus level following implementation of a quality improvement model in social security hospitals in Tehran Province. This research was descriptive-comparative in nature. The study population consisted of the implementers of quality improvement model in four Tehran social security hospitals. The data were gathered through a checklist addressing customer knowledge and customer satisfaction. The research findings indicated that the average scores on customer knowledge in Shahriar, Alborz, Milad, and Varamin hospitals were 64.1, 61.2, 54.1, and 46.6, respectively. The average scores on customer satisfaction in Shahriar, Alborz, Milad, and Varamin hospitals were 67.7, 65, 59.4, and 50, respectively. The customer focus average scores in Shahriar, Alborz, Milad, and Varamin hospitals were 66.3, 63.3, 57.3, and 48.6, respectively. The total average scores on customer knowledge, satisfaction and customer focus in the investigated hospitals proved to be 56.4, 60.5, and 58.9, respectively. The paper is of value in showing that implementation of the quality improvement model could considerably improve customer focus level.
Readability Assessment of Internet-Based Patient Education Materials Related to Parathyroid Surgery.
Patel, Chirag R; Sanghvi, Saurin; Cherla, Deepa V; Baredes, Soly; Eloy, Jean Anderson
2015-07-01
Patient education is critical in obtaining informed consent and reducing preoperative anxiety. Written patient education material (PEM) can supplement verbal communication to improve understanding and satisfaction. Published guidelines recommend that health information be presented at or below a sixth-grade reading level to facilitate comprehension. We investigate the grade level of online PEMs regarding parathyroid surgery. A popular internet search engine was used to identify PEM discussing parathyroid surgery. Four formulas were used to calculate readability scores: Flesch Reading Ease (FRE), Flesch-Kincaid Grade Level (FKGL), Gunning Frequency of Gobbledygook (GFOG), and Simple Measure of Gobbledygook (SMOG). Thirty web-based articles discussing parathyroid surgery were identified. The average FRE score was 42.8 (±1 standard deviation [SD] 16.3; 95% confidence interval [CI], 36.6-48.8; range, 6.1-71.3). The average FKGL score was 11.7 (±1 SD 3.3; 95% CI, 10.5-12.9; range, 6.1-19.0). The SMOG scores averaged 14.2 (±1 SD 2.6; 95% CI, 13.2-15.2; range, 10.7-21.9), and the GFOG scores averaged 15.0 (±1 SD 3.5; 95% CI, 13.7-16.3; range, 10.6-24.8). Online PEM on parathyroid surgery is written above the recommended sixth-grade reading level. Improving readability of PEM may promote better health education and compliance. © The Author(s) 2015.
Edgar, Susan; Mercer, Annette; Hamer, Peter
2014-12-01
The purpose of this study was to determine if there is an association between admission interview score and subsequent academic and clinical performance, in a four-year undergraduate physiotherapy course. Retrospective observational study. 141 physiotherapy students enrolled in two entry year groups. Individual student performance in all course units, practical examinations, clinical placements as well as year level and overall Grade Point Average. Predictor variables included admission interview scores, admission academic scores and demographic data (gender, age and entry level). Interview score demonstrated a significant association with performance in three of six clinical placements through the course. This association was stronger than for any other admission criterion although effect sizes were small to moderate. Further, it was the only admission score to have a significant association with overall Clinical Grade Point Average for the two year groups analysed (r=0.322). By contrast, academic scores on entry showed significant associations with all year level Grade Point Averages except Year 4, the clinical year. This is the first study to review the predictive validity of an admission interview for entry into a physiotherapy course in Australia. The results show that performance in this admission interview is associated with overall performance in clinical placements through the course, while academic admission scoring is not. These findings suggest that there is a role for both academic and non-academic selection processes for entry into physiotherapy. Copyright © 2014 Chartered Society of Physiotherapy. Published by Elsevier Ltd. All rights reserved.
Food hygiene, deprivation, types of premises and rates of gastrointestinal illnesses in the UK.
Collins, Brendan
2015-01-01
To understand more about the relationship between economic deprivation, types of premises, food hygiene scores and rates of gastrointestinal illness in the UK. Data were extracted from the UK Food Standards Agency for about 300 000 UK premises which had hygiene scores based on visits from local authority food safety officers. These scores were analysed by type of premises, deprivation and local authority. Local authority-level average scores were mapped and compared with rates of laboratory-detected gastrointestinal illness from the Health Protection Agency. UK. UK premises (n 311 458) from 341 local authority areas that sell or produce food. There was a modest but statistically significant relationship between average food hygiene score and deprivation, which was caused by deprived areas having more of the categories of premises with significantly lower hygiene scores; these were pub/club (n 40 525), restaurant/café/canteen (n 73 052), small retailer (n 42 932) and takeaway (n 36 708). No relationship was established between local authority average food hygiene scores and rates of laboratory-detected gastrointestinal illness; however, this result does not preclude a relationship between food hygiene and rates of gastrointestinal illnesses, as laboratory-detected illness rates make up only a small proportion of actual rates of illness in the community. Certain types of UK premises are more likely to have low hygiene scores, which means that they should be targeted more for enforcement. These types of premises are more prevalent in the most economically deprived areas.
Bagley, Jennifer Elaine; Randall, K; Anderson, M P
2015-02-01
Distance education is a solution to expand medical imaging education to students who might not otherwise be able to obtain the education. It can be a mechanism to reduce the health care worker shortage in underserved areas. In some cases, distance education may be a disruptive technology, and might lower student performance. This study compares student scores in a cadaver anatomy course in the four cohorts preceding the implementation of distance education to the first three cohorts that took the course using a multiple campus design. The means and medians of the lecture exam average, the laboratory component score, and the final course score of the nondistance education cohorts were compared with those of the distance education cohorts using nonparametric statistical analysis. Scores in an anatomy course were compared by campus placement among the distance education cohorts, and the independent effect of distance education on the laboratory component, lecture examination average, and final course scores, while controlling for cumulative grade point average and site (originating/distant), was assessed. Students receiving the course in a nondistance education environment scored higher in the anatomy course than the students who took the course in a distance education environment. Students on the distant campus scored lower than students on the originating site. Distance education technology creates new opportunities for learning, but can be a disruptive technology. Programs seeking to implement distance education into their curriculum should do so with knowledge of the advantages and disadvantages.
Sisson, Stephen D.; Bertram, Amanda; Yeh, Hsin-Chieh
2015-01-01
Background A core objective of residency education is to facilitate learning, and programs need more curricula and assessment tools with demonstrated validity evidence. Objective We sought to demonstrate concurrent validity between performance on a widely shared, ambulatory curriculum (the Johns Hopkins Internal Medicine Curriculum), the Internal Medicine In-Training Examination (IM-ITE), and the American Board of Internal Medicine Certifying Examination (ABIM-CE). Methods A cohort study of 443 postgraduate year (PGY)-3 residents at 22 academic and community hospital internal medicine residency programs using the curriculum through the Johns Hopkins Internet Learning Center (ILC). Total and percentile rank scores on ILC didactic modules were compared with total and percentile rank scores on the IM-ITE and total scores on the ABIM-CE. Results The average score on didactic modules was 80.1%; the percentile rank was 53.8. The average IM-ITE score was 64.1% with a percentile rank of 54.8. The average score on the ABIM-CE was 464. Scores on the didactic modules, IM-ITE, and ABIM-CE correlated with each other (P < .05). Residents completing greater numbers of didactic modules, regardless of scores, had higher IM-ITE total and percentile rank scores (P < .05). Resident performance on modules covering back pain, hypertension, preoperative evaluation, and upper respiratory tract infection was associated with IM-ITE percentile rank. Conclusions Performance on a widely shared ambulatory curriculum is associated with performance on the IM-ITE and the ABIM-CE. PMID:26217421
The performance assessment of undergraduate students in physics laboratory by using guided inquiry
NASA Astrophysics Data System (ADS)
Mubarok, H.; Lutfiyah, A.; Kholiq, A.; Suprapto, N.; Putri, N. P.
2018-03-01
The performance assessment of basic physics experiment among undergraduate physics students which includes three stages: pre-laboratory, conducting experiment and final report was explored in this study. The research used a descriptive quantitative approach by utilizing guidebook of basic physics experiment. The findings showed that (1) the performance of pre-laboratory rate among undergraduate physics students in good category (average score = 77.55), which includes the ability of undergraduate physics students’ theory before they were doing the experiment. (2) The performance of conducting experiment was in good category (average score = 78.33). (3) While the performance of final report was in moderate category (average score = 73.73), with the biggest weakness at how to analyse and to discuss the data and writing the abstract.
Interobserver Reliability of the Total Body Score System for Quantifying Human Decomposition.
Dabbs, Gretchen R; Connor, Melissa; Bytheway, Joan A
2016-03-01
Several authors have tested the accuracy of the Total Body Score (TBS) method for quantifying decomposition, but none have examined the reliability of the method as a scoring system by testing interobserver error rates. Sixteen participants used the TBS system to score 59 observation packets including photographs and written descriptions of 13 human cadavers in different stages of decomposition (postmortem interval: 2-186 days). Data analysis used a two-way random model intraclass correlation in SPSS (v. 17.0). The TBS method showed "almost perfect" agreement between observers, with average absolute correlation coefficients of 0.990 and average consistency correlation coefficients of 0.991. While the TBS method may have sources of error, scoring reliability is not one of them. Individual component scores were examined, and the influences of education and experience levels were investigated. Overall, the trunk component scores were the least concordant. Suggestions are made to improve the reliability of the TBS method. © 2016 American Academy of Forensic Sciences.
Gazibara, Tatjana; Nurković, Selmina; Marić, Gorica; Kurtagić, Ilma; Kovačević, Nikolina; Kisić-Tepavčević, Darija; Pekmezović, Tatjana
2015-08-01
To assess final year medical students' self-perception of their practical skills. The study was conducted at the Faculty of Medicine in Belgrade during compulsory practical sessions in the period December 2-9, 2013 and 390 students agreed to participate (response rate 77.8%). The questionnaire included questions on demographic characteristics, 21 questions on students' self-perception of their practical skills, and 1 question on students' self-perceived readiness to start working with patients. Cronbach's α for the entire scale was 0.891. Students felt most confident about measuring arterial pulse and blood pressure and taking patients' history (average score 10 for all three skills) and least confident about placing a urinary catheter (average score 1) and suturing a wound (average score 2). They rated their readiness to work with patients with 5.0 out of 10.0 points. The total score did not correlate with students' average mark (Spearman's ρ=0.039; P=0.460) and the average mark did not correlate with the self-perceived readiness to work with patients (Spearman's ρ=-0.048; P=0.365). Our study suggests that medical students lack confidence to perform various clinical procedures, particularly those related to surgical interventions. To improve students' confidence, clinical curriculum should include either more hours of practical work or ensure closer supervision of practical training in wards.
Opto-mechanical design of the MTG FCI spectral separation assembly
NASA Astrophysics Data System (ADS)
Riguet, François; Brousse, Emmanuel; Carel, Jean-Louis; Cottenye, Justine; Harmann, David; Joncour, Marc; Makhlouf, Houssine; Mouricaud, Daniel; Oussalah, Meihdi; Rodolfo, Jacques
2015-09-01
The Spectral Separation Assembly is a key component of the Flexible Combined Imager, an instrument that will be on-board Meteosat Third Generation. It splits the input beam coming from the telescope into five spectral groups, for a total of 16 channels, from 0.4 to 13.3 μm. It comprises a set of four dichroics separators followed by four collimating optics for the infrared spectral groups, which feed the cold imaging optics. The visible spectral group is directly imaged on a detector. This paper presents the optical design of the assembly, the mechanical mounting of the optical components, and the coatings developed for the dichroics, mirrors and lenses.
A Summary of Source Data in Military Psychiatric Epidemiology
1975-12-01
AD-A02 1 265 A SUMMARY OF SOURCE DATA IN MILITARY PSYCHIATRIC EPIDEMIOLOGY Willia m E. Datel Walter Reed Army Institute of Research Washington...1 1.1 1 ’? • ~) 1 J•·" n .I.• I •.o .1 l’ , ..-.~ nt .# 1 a. 1 l... I - j_ l· ,,, ,, .. _ ... f f •d ’ M t H\\• ( rl’ . , ’ I ·~·· f N l U A’ f fC...i llnesn acror:s ;■ L L three f-erviccr- ::; u/ierofore attenuated. :•!. .!;(.’i.; i. ;;ere, -7- ■■■ -■ --■ - -■■■■.■■=—^-^^-i^* m .""- Bfcl m
Decoding the Assessment Alphabet Soup
NASA Astrophysics Data System (ADS)
Engelhardt, Paula
2010-10-01
The number of assessment instruments that help physics instructors evaluate the conceptual learning of their students has grown over the last twenty years. Today, the number of tests that are available begin to look like an alphabet soup, FCI, MBT, TUG-K, CSE, CSM, CSEM, DIRECT, BEMA, LOCE, FMCE, SEMCO, etc. What can these assessment tests do for you that is different from what you regularly do? How do these tests differ from the tests and other assessments you already give in class? What is meant by formative and summative assessment and why should you care? What are some of the issues associated with giving one of these assessment tests? These are the questions that will be addressed in this talk.
New Methods for the Detection and Interception of Frequency-Hopped Waveforms
1990-11-01
that £[p2 Q2 /O] = uF + 2 + o(cos 0 + 6 sin9)2 + 4n(acos0+/3sin)(7ycos0+6sinO)+o r(acos0+sinO)2 I + ( acosO +/3sinO) 2(Tcos9+ 6sin O)2 (3.134) i which...Jcins I lopk ins lI mvtrsi! t3 A pplied Physics Laborator Before1 NII After Figure 4.4: Deconvolut ion Applivod to Oi-fFci i r 100 The Johns 11opkins...Arlington, VA 20360 Library 2 Naval Postgraduate School Monterey, CA 92940 Library 2 Naval Research Laborator . Washington, DC 20375 Library 2 J. W
Accounting for therapist variability in couple therapy outcomes: what really matters?
Owen, Jesse; Duncan, Barry; Reese, Robert Jeff; Anker, Morten; Sparks, Jacqueline
2014-01-01
This study examined whether therapist gender, professional discipline, experience conducting couple therapy, and average second-session alliance score would account for the variance in outcomes attributed to the therapist. The authors investigated therapist variability in couple therapy with 158 couples randomly assigned to and treated by 18 therapists in a naturalistic setting. Consistent with previous studies in individual therapy, in this study therapists accounted for 8.0% of the variance in client outcomes and 10% of the variance in client alliance scores. Therapist average alliance score and experience conducting couple therapy were salient predictors of client outcomes attributed to therapist. In contrast, therapist gender and discipline did not significantly account for the variance in client outcomes attributed to therapists. Tests of incremental validity demonstrated that therapist average alliance score and therapist experience uniquely accounted for the variance in outcomes attributed to the therapist. Emphasis on improving therapist alliance quality and specificity of therapist experience in couple therapy are discussed.
Khan, Shah Alam; Kumar, Ashok
2010-09-01
We wanted to evaluate the efficacy of Ponseti's technique in neglected clubfoot in children more than 7 years of age. The results of Ponseti's method were evaluated in 21 children (25 feet) with neglected club feet. Patients were evaluated using the Dimeglio scoring system. All patients underwent percutaneous tenotomy of the Achilles tendon. The mean age at the time of treatment was 8.9 years. The mean follow-up period was 4.7 years. The average Dimeglio score at the start of the treatment was 14.2 compared with an average score of 0.95 at the end of the treatment at 1-year follow-up. Eighteen feet (85.7%) had full correction. Recurrence was seen in six feet (24%). At 4-year follow-up, the average Dimeglio score for 19 feet was 0.18. We recommend that Ponseti's method should be the preferred initial treatment modality for neglected clubfeet.
Quality of life of caregivers: a cross-sectional study.
Ovayolu, Ozlem; Ovayolu, Nimet; Tuna, Döndü; Serçe, Sibel; Sevinç, Alper; Pirbudak Çöçelli, Lütfiye
2014-08-01
This descriptive study was conducted to evaluate the quality of life of cancer caregivers. One hundred and seventy-eight caregivers of patients who were diagnosed with cancer in Gaziantep oncology hospital participated in the study. Data were collected by using a questionnaire and quality of life scale. The scale was scored between 0 and 10, where '10' indicated the best and '0' indicated the worst level. It was determined that the majority of caregivers were young and female, the overall total score average of quality of life was 4.5 ± 1.1, and the subdomain with the lowest value was the psychological subdomain. All quality of life subdomain score averages and the overall total score averages were observed to be low in women, as well as in those who provided care for their own children, who lived in the same house with the patient and who gave care for 19-24 h daily. © 2013 Wiley Publishing Asia Pty Ltd.
Is USMLE Step 1 score a valid predictor of success in surgical residency?
Sutton, Erica; Richardson, James David; Ziegler, Craig; Bond, Jordan; Burke-Poole, Molly; McMasters, Kelly M
2014-12-01
Many programs rely extensively on United States Medical Licensing Examination (USMLE) scores for interviews/selection of surgical residents. However, their predictive ability remains controversial. We examined the association between USMLE scores and success in surgical residency. We compared USMLE scores for 123 general surgical residents who trained in the past 20 years and their performance evaluation. Scores were normalized to the mean for the testing year and expressed as a ratio (1 = mean). Performances were evaluated by (1) rotation evaluations; (2) "dropouts;" (3) overall American Board of Surgery pass rate; (4) first-time American Board of Surgery pass rate; and (5) a retrospective comprehensive faculty evaluation. For the latter, 16 surgeons (average faculty tenure 22 years) rated residents on a 1 to 4 score (1 = fair; 4 = excellent). Rotation evaluations by faculty and "drop out" rates were not associated with USMLE score differences (dropouts had average above the mean). One hundred percent of general surgery practitioners achieved board certification regardless of USMLE score but trainees with an average above the mean had a higher first-time pass rate (P = .04). Data from the comprehensive faculty evaluations were conflicting: there was a moderate degree of correlation between board scores and faculty evaluations (r = .287, P = .001). However, a score above the mean was associated with a faculty ranking of 3 to 4 in only 51.7% of trainees. Higher USMLE scores were associated with higher faculty evaluations and first-time board pass rates. However, their positive predictive value was only 50% for higher faculty evaluations and a high overall board pass rate can be achieved regardless of USMLE scores. USMLE Step 1 score is a valid tool for selecting residents but caution might be indicated in using it as a single selection factor. Copyright © 2014 Elsevier Inc. All rights reserved.
Gunasekaran, Vanishree; Venkatesh, V Mathan Kumar; Asokan, T V
2016-01-01
Soft neurological signs are minor, non localizing, objective abnormalities, thought to reflect damage in cortical and sub-cortical connections or connections within different cortical regions. Regional structural grey matter anomalies have already been observed and correlated with the presence of cognitive deficits and presence of soft neurological signs in schizophrenic patients. Drug naive patients presenting with first episode of psychosis (FEP)were clinically evaluated for soft neurological signs using the Cambridge Neurological Inventory. The soft neurological signs scores were compared with scores in healthy volunteers. In the patient group, this score was also correlated with demographic and disorder variables. Of the 30 patients with FEP, 60% were women. The average age of the participant was 36.2 years. The average duration of illness was 1.55 years. More than 50% of the patients had schizophrenia. 93.3% of patients with FEP had atleast one soft neurological sign compared to 16.6% of controls. The average score on BPRS was 25.86 and on PANSS was 39.29, and BPRS, PANSS scores had a significant correlation with total soft neurological signs score. There is a significantly higher incidence of soft neurological signs in patients with FEP, particularly schizophrenia. The presence of soft signs correlated with the severity of psychosis.
Better prognostic marker in ICU - APACHE II, SOFA or SAP II!
Naqvi, Iftikhar Haider; Mahmood, Khalid; Ziaullaha, Syed; Kashif, Syed Mohammad; Sharif, Asim
2016-01-01
This study was designed to determine the comparative efficacy of different scoring system in assessing the prognosis of critically ill patients. This was a retrospective study conducted in medical intensive care unit (MICU) and high dependency unit (HDU) Medical Unit III, Civil Hospital, from April 2012 to August 2012. All patients over age 16 years old who have fulfilled the criteria for MICU admission were included. Predictive mortality of APACHE II, SAP II and SOFA were calculated. Calibration and discrimination were used for validity of each scoring model. A total of 96 patients with equal gender distribution were enrolled. The average APACHE II score in non-survivors (27.97+8.53) was higher than survivors (15.82+8.79) with statistically significant p value (<0.001). The average SOFA score in non-survivors (9.68+4.88) was higher than survivors (5.63+3.63) with statistically significant p value (<0.001). SAP II average score in non-survivors (53.71+19.05) was higher than survivors (30.18+16.24) with statistically significant p value (<0.001). All three tested scoring models (APACHE II, SAP II and SOFA) would be accurate enough for a general description of our ICU patients. APACHE II has showed better calibration and discrimination power than SAP II and SOFA.
Stiegler, Marjorie; Hobbs, Gene; Martinelli, Susan M; Zvara, David; Arora, Harendra; Chen, Fei
2018-01-01
Background Simulation is an effective method for creating objective summative assessments of resident trainees. Real-time assessment (RTA) in simulated patient care environments is logistically challenging, especially when evaluating a large group of residents in multiple simulation scenarios. To date, there is very little data comparing RTA with delayed (hours, days, or weeks later) video-based assessment (DA) for simulation-based assessments of Accreditation Council for Graduate Medical Education (ACGME) sub-competency milestones. We hypothesized that sub-competency milestone evaluation scores obtained from DA, via audio-video recordings, are equivalent to the scores obtained from RTA. Methods Forty-one anesthesiology residents were evaluated in three separate simulated scenarios, representing different ACGME sub-competency milestones. All scenarios had one faculty member perform RTA and two additional faculty members perform DA. Subsequently, the scores generated by RTA were compared with the average scores generated by DA. Variance component analysis was conducted to assess the amount of variation in scores attributable to residents and raters. Results Paired t-tests showed no significant difference in scores between RTA and averaged DA for all cases. Cases 1, 2, and 3 showed an intraclass correlation coefficient (ICC) of 0.67, 0.85, and 0.50 for agreement between RTA scores and averaged DA scores, respectively. Analysis of variance of the scores assigned by the three raters showed a small proportion of variance attributable to raters (4% to 15%). Conclusions The results demonstrate that video-based delayed assessment is as reliable as real-time assessment, as both assessment methods yielded comparable scores. Based on a department’s needs or logistical constraints, our findings support the use of either real-time or delayed video evaluation for assessing milestones in a simulated patient care environment. PMID:29736352
Miranda, Dinis Reis; Nap, Raoul; de Rijk, Angelique; Schaufeli, Wilmar; Iapichino, Gaetano
2003-02-01
The instruments used for measuring nursing workload in the intensive care unit (e.g., Therapeutic Intervention Scoring System-28) are based on therapeutic interventions related to severity of illness. Many nursing activities are not necessarily related to severity of illness, and cost-effectiveness studies require the accurate evaluation of nursing activities. The aim of the study was to determine the nursing activities that best describe workload in the intensive care unit and to attribute weights to these activities so that the score describes average time consumption instead of severity of illness. To define by consensus a list of nursing activities, to determine the average time consumption of these activities by use of a 1-wk observational cross-sectional study, and to compare these results with those of the Therapeutic Intervention Scoring System-28. A total of 99 intensive care units in 15 countries. Consecutive admissions to the intensive care units. Daily recording of nursing activities at a patient level and random multimoment recording of these activities. A total of five new items and 14 subitems describing nursing activities in the intensive care unit (e.g., monitoring, care of relatives, administrative tasks) were added to the list of therapeutic interventions in Therapeutic Intervention Scoring System-28. Data from 2,041 patients (6,451 nursing days and 127,951 multimoment recordings) were analyzed. The new activities accounted for 60% of the average nursing time; the new scoring system (Nursing Activities Score) explained 81% of the nursing time (vs. 43% in Therapeutic Intervention Scoring System-28). The weights in the Therapeutic Intervention Scoring System-28 are not derived from the use of nursing time. Our study suggests that the Nursing Activities Score measures the consumption of nursing time in the intensive care unit. These results should be validated in independent databases.
Bauer, Andrea S; Shen, Peter Y; Nidecker, Anna E; Lee, Paul S; James, Michelle A
2017-05-01
Which infants with brachial plexus birth palsy (BPBP) should undergo microsurgical plexus reconstruction remains controversial. The current gold standard for the decision for plexus reconstruction is serial clinical examinations, but this approach obviates the possibility of early surgical treatment. We hypothesize that a new technique using 3-dimensional volumetric proton density magnetic resonance imaging (MRI) without sedation can evaluate the severity of BPBP injury earlier than serial clinical examinations. Infants were prospectively enrolled prior to 12 weeks of age and imaged using 3 Tesla MRI without sedation. Clinical scores were collected at all visits. The imaging findings were graded based on the number of injured levels and the severity of each injury, and a radiological score was calculated. All infants were followed at least until the decision for surgery was made based on clinical examination. Nine infants completed the MRI scan and clinical follow-up. The average Toronto score at presentation was 4.4 out of 10 (range, 0-8.2); the average Active Movement Scale score was 50 out of 105 (range, 0-86). Four infants required surgery: 2 because of a flail limb and Horner syndrome and 2 owing to failure to recover antigravity elbow flexion by age 6 months. Radiological scores ranged from 0 to 18 out of a maximum score of 25. The average radiological score for those infants who required surgery was 12 (range, 6.5-18), whereas the average score for infants who did not require surgery was 3.5 (range, 0-8). Three-dimensional proton density MRI can evaluate spinal nerve roots in infants without the need for radiation, contrast agents, or sedation. These data suggest that MRI can help determine the severity of injury earlier than clinical examination in infants with BPBP, although further study of a larger sample of infants with varying severity of disease is necessary. Diagnostic II. Copyright © 2017 American Society for Surgery of the Hand. Published by Elsevier Inc. All rights reserved.
Barron, Kenneth I; Lamvu, Georgine M; Schmidt, R Cole; Fisk, Matthew; Blanton, Emily; Patanwala, Insiyyah
2017-02-01
To evaluate if preincision infiltration with extended-release liposomal bupivacaine provides improved overall pain relief compared with 0.25% bupivacaine after laparoscopic or robotic-assisted hysterectomy. A single-center double-masked randomized controlled trial (Canadian Task Force Classification I). A tertiary-care community hospital. Patients recruited from July 2015 through January 2016. Sixty-four patients were randomized, and 59 were analyzed for the primary outcome. Women scheduled to undergo multiport laparoscopic or robotic-assisted total hysterectomy for benign indications were randomized to receive preincision infiltration with undiluted liposomal bupivacaine or 0.25% bupivacaine. The primary outcome was overall average pain intensity by numeric rating scale (0-10) using the Brief Pain Inventory (BPI) via telephone survey on postoperative day (POD) 3. A sample size of 28 per group (N = 56) was planned to detect a 30% change in pain scores. Secondary outcomes were overall average and worst numeric pain scores on PODs 1, 2, and 14; pain scores in hospital; BPI pain interference scores; and total opioid use. There were no demographic differences between the 2 groups. For the primary outcome, we found a decrease in the average (p = .02) pain scores on POD 3 in the liposomal bupivacaine group. We also found a decrease in worst pain scores on POD 2 (p = .03) and POD 3 (p = .01). There were no differences in pain scores while in the hospital or on POD 1 or POD 14. There were no differences in BPI pain interference scores, opioid use, or reported adverse effects. For laparoscopic and robotic-assisted multiport hysterectomies, there is evidence of decreased average postoperative pain with liposomal bupivacaine compared with 0.25% bupivacaine for port-site analgesia on POD 3, but no difference in opioid use or measures of functioning. Published by Elsevier Inc.
Kelsch, Michael P; Sylvester, Robert K
2016-08-25
Objective. To evaluate the impact that decreasing the time from 12 to three months between prerequisite pharmacodynamics courses and their corresponding pharmacotherapy courses had on overall student performance in the pharmacotherapy courses measured by course examination scores. Methods. Two cohorts of second-professional year (P2) and third professional year (P3) classes, respectively, following different curriculum plans, simultaneously took two pharmacotherapy courses (infectious disease and neoplastic disease). Admission data (age, gender, prior bachelor's degree status, grade point average (GPA), Pharmacy College Admission Test (PCAT) score, and interview score) were collected to establish baseline characteristics between the two cohorts. Examination scores in the corresponding prerequisite pharmacodynamics and pharmacotherapy courses were also collected. The variable was the difference in time each cohort experienced between the prerequisite pharmacodynamics courses and the subsequent pharmacotherapy courses. Results. No difference was found in baseline admission characteristics between the two cohorts, except for increased average age, which favored the P2 cohort. In the infectious disease pharmacotherapy course, the P3 cohort performed better than the P2 cohort as measured by average examination scores. In the neoplastic disease pharmacotherapy course, the P3 cohort also achieved significant higher average examination scores than the P2 cohort. The P3 cohort achieved higher overall scores than the P2 cohort in both courses despite a longer interval between the applicable pharmacodynamic and pharmacotherapy courses (12 months vs 3 months, respectively). Conclusion. Shortening the time interval from 12 months to three months between prerequisite and requisite courses did not result in improved, or even equivalent, academic performance relative to the P2 cohort that had only a 3-month interval between courses. Placing like content closer together, as the only intervention, is not enough to ensure improved student performance measured by examination scores in corresponding requisite courses.
Sylvester, Robert K.
2016-01-01
Objective. To evaluate the impact that decreasing the time from 12 to three months between prerequisite pharmacodynamics courses and their corresponding pharmacotherapy courses had on overall student performance in the pharmacotherapy courses measured by course examination scores. Methods. Two cohorts of second-professional year (P2) and third professional year (P3) classes, respectively, following different curriculum plans, simultaneously took two pharmacotherapy courses (infectious disease and neoplastic disease). Admission data (age, gender, prior bachelor’s degree status, grade point average (GPA), Pharmacy College Admission Test (PCAT) score, and interview score) were collected to establish baseline characteristics between the two cohorts. Examination scores in the corresponding prerequisite pharmacodynamics and pharmacotherapy courses were also collected. The variable was the difference in time each cohort experienced between the prerequisite pharmacodynamics courses and the subsequent pharmacotherapy courses. Results. No difference was found in baseline admission characteristics between the two cohorts, except for increased average age, which favored the P2 cohort. In the infectious disease pharmacotherapy course, the P3 cohort performed better than the P2 cohort as measured by average examination scores. In the neoplastic disease pharmacotherapy course, the P3 cohort also achieved significant higher average examination scores than the P2 cohort. The P3 cohort achieved higher overall scores than the P2 cohort in both courses despite a longer interval between the applicable pharmacodynamic and pharmacotherapy courses (12 months vs 3 months, respectively). Conclusion. Shortening the time interval from 12 months to three months between prerequisite and requisite courses did not result in improved, or even equivalent, academic performance relative to the P2 cohort that had only a 3-month interval between courses. Placing like content closer together, as the only intervention, is not enough to ensure improved student performance measured by examination scores in corresponding requisite courses. PMID:27667836
An Empirical Investigation of Change in MCAT Scores upon Retest.
ERIC Educational Resources Information Center
Hynes, Kevin; Givner, Nathaniel
1980-01-01
An investigation of Medical College Admission Test (MCAT) retest scores indicates that limited retest improvement may result when initial scores are fairly low or below what might be predicted based on grade point averages. However, when initial scores approach the national, standardized MCAT mean, or are above what might be predicted, significant…
Overestimation Bias in Self-Reported SAT Scores
ERIC Educational Resources Information Center
Mayer, Richard E.; Stull, Andrew T.; Campbell, Julie; Almeroth, Kevin; Bimber, Bruce; Chun, Dorothy; Knight, Allan
2007-01-01
The authors analyzed self-reported SAT scores and actual SAT scores for five different samples of college students (N = 650). Students overestimated their actual SAT scores by an average of 25 points (SD = 81, d = 0.31), with 10% under-reporting, 51% reporting accurately, and 39% over-reporting, indicating a systematic bias towards over-reporting.…
ERIC Educational Resources Information Center
Bridgeman, Brent; Wendler, Cathy
2004-01-01
After a few decades of keeping a watchful eye, substantial gaps in the average standardized test scores of White and some minority group students persist. The average group differences on the SAT are among the most visible examples of this pattern, but when we focus only on mean score differences among students, we tend to overlook the relatively…
Opening-wedge high tibial osteotomy with a locked low-profile plate: surgical technique.
Kolb, Werner; Guhlmann, Hanno; Windisch, Christoph; Koller, Heiko; Grützner, Paul; Kolb, Klaus
2010-09-01
High tibial osteotomy has been recognized as a beneficial treatment for osteoarthritis of the medial compartment of the knee. The purpose of this prospective study was to assess the short-term results of opening-wedge high tibial osteotomies with locked plate fixation. From September 2002 to November 2005, fifty-one consecutive medial opening-wedge high tibial osteotomies were performed. The mean age of the patients at the time of the index operation was forty-nine years. The preoperative and postoperative factors analyzed included the grade of arthritis of the tibiofemoral compartment (the Ahlbäck radiographic grade), the anatomic tibiofemoral angle, patellar height, the Hospital for Special Surgery rating system score, and the Lysholm and Gillquist knee score. Postoperatively, one superficial wound infection occurred. Fifty of the fifty-one osteotomies healed after an average period of 12.9 weeks (range, eight to sixteen weeks) without bone grafts. A nonunion developed in a sixty-two-year-old patient who was a cigarette smoker. The average postoperative tibiofemoral angle was 9° of valgus. Forty-nine patients were followed for a mean of fifty-two months. The average score on the Hospital for Special Surgery rating system was 86 points at the time of the most recent follow-up. The rating was excellent in twenty-eight patients (57%), good in twelve (24%), fair in four (8%), and poor in five (10%). The average score on the Lysholm and Gillquist knee-scoring scale was 83 points. According to these scores, the outcome was excellent in nine patients (18%), good in thirty-one (63%), fair in three (6%), and poor in six (12%). Four knees failed after an average of thirty-six months. Our results suggest that an opening-wedge high tibial osteotomy with locked plate fixation allows a correct valgus angle to be achieved with good short-term results.
Olivares-Urueta, Mayra; Williamson, Jon W
2013-01-01
Pre-admission factors tend to serve as indicators of student success in health professions educational programs, but less is known about the effects that academic assistance programs have on student success. This study sought to determine whether specific pre-admission factors could help to identify students who may require academic support during their health professions education. This retrospective analysis aimed to identify differences in pre-admission variables between those students requiring tutoring and a matched sample of students who did not require tutoring. One-way ANOVA was used to assess differences for dependent variables-age, cumulative GPA (cGPA), science GPA (sGPA), verbal graduate record examination (GRE) score, quantitative GRE score, analytical GRE score and combined GRE score, community college hours, average credit hours per semester, and highest semester credit hour load-across three groups of students who received no tutoring (NT 0 hrs), some tutoring (ST <8 hrs), and more tutoring (MT >8 hrs). Total GRE and average semester hours differentiated NT from ST from MT (p<0.05). A linear regression model with these pre-admission factors found only four of the independent variables to be significant (r2=0.41; p<0.05) in predicting hours of tutoring: quantitative GRE, sGPA, cGPA and average semester hours taken. The combination of lower GRE scores and lighter average semester course load were most predictive of the need for academic assistance as defined by hours of tutoring. While the value of the GRE in admissions processes is generally accepted, the average semester hour load in college can also provide important information regarding academic preparation and the need for tutoring services.
Outcomes of Thermal Pulsation Treatment for Dry Eye Syndrome in Patients With Sjogren Disease.
Godin, Morgan R; Stinnett, Sandra S; Gupta, Preeya K
2018-04-26
To evaluate the clinical outcomes of thermal pulsation treatment in patients with meibomian gland dysfunction (MGD) and dry eye secondary to Sjogren disease. Twenty-four eyes from 13 patients with previously diagnosed Sjogren disease who presented to our institution with dry eye symptoms and had thermal pulsation treatment were prospectively followed up. Patients underwent comprehensive slit-lamp examination, including MGD grading, gland oil flow, corneal and conjunctival staining scores, and tear break-up time (TBUT). Tear osmolarity was tested before and after treatment. The average patient age was 62.4 years (range, 31-78 yrs); 12 were women and 1 a man. The average meibomian gland oil flow score showed an increase from pretreatment 0.71 to 1.75 at 1 year posttreatment (range 9-15 months) (P = 0.001). The average corneal staining score decreased from a pretreatment grade of 1.04 to a posttreatment grade of 0.36 (P < 0.001). The average conjunctival staining score decreased from a pretreatment grade of 1.5 to a posttreatment grade of 0.48 (P < 0.001). The average tear break-up time improved from 3.8 seconds before treatment to 7.5 seconds after thermal pulsation treatment (P < 0.001). There was no statistically significant change in the tear osmolarity or Ocular Surface Disease Index score. Our findings suggest that MGD is an important contributor to dry eye disease in patients with Sjogren disease and should not be overlooked when considering treatment options. Thermal pulsation is a therapeutic option for patients with Sjogren disease who have MGD and dry eye symptoms. After a single treatment, patients exhibited increased oil flow and tear break-up time with an associated decrease in corneal and conjunctival staining.
Weiser, Mark; Reichenberg, Abraham; Rabinowitz, Jonathan; Nahon, Daniella; Kravitz, Efrat; Lubin, Gad; Knobler, Haim Y; Davidson, Michael; Noy, Shlomo
2007-11-01
Research indicates that persons with learning disorders often suffer from psychopathology. We assessed current and future psychopathology in male adolescents with discrete impairments in reading comprehension (IRC) or arithmetic abilities (IAA) but with average or above-average general intellectual abilities. Subjects were a population-based cohort of 174,994 male adolescents screened by the Israeli Draft Board with average or above-average intellectual abilities but with low scores (8.6th and 10th lowest percentile respectively) on reading or arithmetic tests. They were compared with adolescents who scored in the 10th percentile and above on these tests (comparison group). Relative to the comparison group, male adolescents with IRC, IAA, or IRC and IAA (0.69%), had poorer scores on most behavioral assessments and higher prevalence of current psychopathology: 4.2% (comparison group), 8.0% (IRC), 7.0% (IAA), and 9.8% (IRC and IAA). Adolescents with IRC were also at increased risk for later hospitalization for schizophrenia (hazard ratios = 1.8, 95% confidence interval: 1.3-2.6). Male adolescents with average and above-average general intellectual abilities but with IRC or IAA are more likely to have current and future psychopathology. Impairments in intellectual functioning and abnormal behaviors leading to mental illnesses may share common neurobiological substrates. The results support screening male adolescents with learning disorders for psychopathology.
ERIC Educational Resources Information Center
Wang, Ze; Rohrer, David; Chuang, Chi-ching; Fujiki, Mayo; Herman, Keith; Reinke, Wendy
2015-01-01
This study compared 5 scoring methods in terms of their statistical assumptions. They were then used to score the Teacher Observation of Classroom Adaptation Checklist, a measure consisting of 3 subscales and 21 Likert-type items. The 5 methods used were (a) sum/average scores of items, (b) latent factor scores with continuous indicators, (c)…
Rechmann, Peter; Liou, Shasan W; Rechmann, Beate M T; Featherstone, John D B
2016-01-01
The hypothesis to be tested was that using the SOPROCARE system in fluorescence perio-mode allows scoring of microbial plaque that is comparable to the Turesky modification of the Quigley Hein plaque index (T-QH) and scoring of gingival inflammation comparable to the Silness and Löe gingival inflammation index (GI). Fifty-five subjects with various amounts of microbial plaque were recruited. The T-QH and GI index were recorded. SOPROCARE pictures were recorded in fluorescence perio-mode and in daylight mode. Finally, conventional digital photographs were taken. All pictures were assessed using the same criteria as described for the clinical indices. The average T-QH was 1.1 ± 1.2 (mean ± SD). Scoring with SOPROCARE perio-mode led to a slightly higher average than the T-QH scores. SOPROCARE daylight mode and digital photography showed the highest plaque scores. The average GI index was 0.7 ± 0.9. SOPROCARE in perio-mode scored slightly lower. Linear regression fits between the different clinical indices and SOPROCARE scores were significantly different from zero demonstrating high goodness of fit. The study demonstrated that the SOPROCARE fluorescence assessment tool in perio-mode allows reliable judgment of microbial plaque and gingival inflammation levels similar to the established Turesky-modified Quigley Hein index and the Silness and Löe gingival inflammation index. Training on plaque-free teeth will actually reduce scoring errors. The SOPROCARE fluorescence tool in perio-mode provides reliable evaluation of microbial plaque and gingival inflammation for the dental clinician.
Randall, K; Anderson, MP
2015-01-01
Distance education is a solution to expand medical imaging education to students who might not otherwise be able to obtain the education. It can be a mechanism to reduce the health care worker shortage in underserved areas. In some cases, distance education may be a disruptive technology, and might lower student performance. This study compares student scores in a cadaver anatomy course in the four cohorts preceding the implementation of distance education to the first three cohorts that took the course using a multiple campus design. The means and medians of the lecture exam average, the laboratory component score, and the final course score of the nondistance education cohorts were compared with those of the distance education cohorts using nonparametric statistical analysis. Scores in an anatomy course were compared by campus placement among the distance education cohorts, and the independent effect of distance education on the laboratory component, lecture examination average, and final course scores, while controlling for cumulative grade point average and site (originating/distant), was assessed. Students receiving the course in a nondistance education environment scored higher in the anatomy course than the students who took the course in a distance education environment. Students on the distant campus scored lower than students on the originating site. Distance education technology creates new opportunities for learning, but can be a disruptive technology. Programs seeking to implement distance education into their curriculum should do so with knowledge of the advantages and disadvantages. PMID:27433237
Mielenz, T J; Callahan, L F; Edwards, M C
2017-01-01
Our study had two main objectives: 1) to determine whether perceived neighbourhood physical features are associated with physical activity levels in adults with arthritis; and 2) to determine whether the conclusions are more precise when item response theory (IRT) scores are used instead of average scores for the perceived neighbourhood physical features scales. Information on health outcomes, neighbourhood characteristics, and physical activity levels were collected using a telephone survey of 937 participants with self-reported arthritis. Neighbourhood walkability and aesthetic features and physical activity levels were measured by self-report. Adjusted proportional odds models were constructed separately for each neighbourhood physical features scale. We found that among adults with arthritis, poorer perceived neighbourhood physical features (both walkability and aesthetics) are associated with decreased physical activity level compared to better perceived neighbourhood features. This association was only observed in our adjusted models when IRT scoring was employed with the neighbourhood physical feature scales (walkability scale: odds ratio [OR] 1.20, 95% confidence interval [CI] 1.02, 1.41; aesthetics scale: OR 1.32, 95% CI 1.09, 1.62), not when average scoring was used (walkability scale: OR 1.14, 95% CI 1.00, 1.30; aesthetics scale: OR 1.16, 95% CI 1.00, 1.36). In adults with arthritis, those reporting poorer walking and aesthetics features were found to have decreased physical activity levels compared to those reporting better features when IRT scores were used, but not when using average scores. This study may inform public health physical environmental interventions implemented to increase physical activity, especially since arthritis prevalence is expected to be close to 20% of the population in 2020. Based on NIH initiatives, future health research will utilize IRT scores. The differences found in this study may be a precursor for research on how past and future treatment effects may vary between these two types of measurement scores. Copyright © 2016 The Royal Society for Public Health. Published by Elsevier Ltd. All rights reserved.
Yoho, Robert M; Antonopoulos, Kosta; Vardaxis, Vassilios
2012-01-01
This study was performed to determine the relationship between undergraduate academic performance and total Medical College Admission Test score and academic performance in the podiatric medical program at Des Moines University. The allopathic and osteopathic medical professions have published educational research examining this relationship. To our knowledge, no such educational research has been published for podiatric medical education. The undergraduate cumulative and science grade point averages and total Medical College Admission Test scores of four podiatric medical classes (2007-2010, N = 169) were compared with their academic performance in the first 2 years of podiatric medical school using pairwise Pearson product moment correlations and multiple regression analysis. Significant low to moderate positive correlations were identified between undergraduate cumulative and science grade point averages and student academic performance in years 1 and 2 of podiatric medical school for each of the four classes (except one) and the pooled data. There was no significant correlation between Medical College Admission Test score and academic performance in years 1 and 2 (except one) and the pooled data. These results identify undergraduate cumulative grade point average as the strongest cognitive admissions variable in predicting academic performance in the podiatric medicine program at Des Moines University, followed by undergraduate science grade point average. These results also suggest limitations of the total Medical College Admission Test score in predicting academic performance. Information from this study can be used in the admissions process and to monitor student progress.
Schneider, J F; Rempel, L A; Rohrer, G A; Brown-Brandl, T M
2011-11-01
The primary objective of this study was to determine if certain behavior traits were genetically correlated with reproduction. If 1 or both of the behavior traits were found to be correlated, a secondary objective was to determine if the behavior traits could be useful in selecting for more productive females. A scale activity score taken at 5 mo of age and a farrowing disposition score taken at farrowing were selected as the behavioral traits. Scale activity score ranged from 1 to 5 and farrowing disposition ranged from 1 to 3. Reproductive traits included age at puberty, number born alive, number born dead, litter birth weight, average piglet birth weight, number weaned, litter weaning weight, average weaning weight, wean-to-estrus interval, ovulation rate including gilts, and postweaning ovulation rate. Genetic correlations between scale activity score and reproduction ranged from -0.79 to 0.61. Three of the correlations, number born alive (P < 0.01), average piglet birth weight (P < 0.001), and wean-to-estrus interval (P = 0.014), were statistically significant but included both favorable and antagonistic correlations. In contrast, all but 1 of the farrowing disposition correlations was favorable and ranged from -0.66 to 0.67. Although only the correlation with litter birth weight was significant (P = 0.018), the consistent favorable direction of all farrowing disposition correlations, except average weaning weight, shows a potential for inclusion of farrowing disposition into a selection program.
Thengchaisri, Naris; Steiner, Jörg M; Suchodolski, Jan S; Sattasathuchana, Panpicha
2017-01-01
Periodontal disease is the most common oral disease in cats. The objectives of this study were to determine the relationships between gingivitis and dental calculus thickness (DCT), or dental calculus coverage (DCC); determine the association of gingivitis scores and types of oral bacteria; and to evaluate bacterial co-infection in cats with periodontal disease. Twelve cats that were not infected with feline leukemia or feline immunodeficiency viruses were enrolled in the study. Gingivitis, DCT, and DCC were scored and recorded. A Kruskal-Wallis test was used to compare scores among canine, 2nd premolar, 3rd premolar, 4th premolar, and 1st molar teeth. The relationship between gingivitis and DCT or DCC scores was determined using the Spearman rank sum test (ρ). Subgingival bacteria were cultured and the association between bacterial species and gingivitis score was evaluated using a Fisher's exact test. The average gingivitis, DCT, and DCC scores for the caudal maxillary teeth were higher for the caudal mandibular teeth and more severe for the 3rd premolar, 4th premolar, and 1st molar teeth than for the canine teeth. A strong relationship between average DCT or DCC score and average gingivitis score was found (ρ = 0.96 and 1, respectively). Aerobic and anaerobic bacterial infections were identified in a large number of cats with periodontal disease (71.1% and 28.9%, respectively). In conclusion, severe gingivitis scores were associated with anaerobic bacterial infection. The caudal teeth are affected with more severe gingivitis, DCT, and DCC than the other teeth. Antibiotic prophylaxis should be prescribed in cats with periodontal disease.
Ion beam generated modes in the lower hybrid frequency range in a laboratory magnetoplasma
NASA Astrophysics Data System (ADS)
Van Compernolle, B.; Tripathi, S.; Gekelman, W. N.; Colestock, P. L.; Pribyl, P.
2012-12-01
The generation of waves by ion ring distributions is of great importance in many instances in space plasmas. They occur naturally in the magnetosphere through the interaction with substorms, or they can be man-made in ionospheric experiments by photo-ionization of neutral atoms injected perpendicular to the earth's magnetic field. The interaction of a fast ion beam with a low β plasma has been studied in the laboratory. Experiments were performed at the LArge Plasma Device (LAPD) at UCLA. The experiments were done in a Helium plasma (n ≃ 1012 \\ cm-3, B0 = 1000 G - 1800 G, fpe}/f{ce ≃ 1 - 5, Te = 0.25\\ eV, vte ≤ vA). The ion beam \\cite{Tripathi_ionbeam} is a Helium beam with energies ranging from 5 keV to 18 keV. The fast ion velocity is on the order of the Alfvén velocity. The beam is injected from the end of the machine, and spirals down the linear device. Waves were observed below fci in the shear Alfvén wave regime, and in a broad spectrum above fci in the lower hybrid frequency range, the focus of this paper. The wave spectra have distinct peaks close to ion cyclotron harmonics, extending out to the 100th harmonic in some cases. The wave generation was studied for various magnetic fields and background plasma densities, as well as for different beam energies and pitch angles. The waves were measured with 3-axis electric and magnetic probes. Detailed measurements of the perpendicular mode structure will be shown. Langmuir probes were used to measure density and temperature evolution due to the beam-plasma interaction. Retarding field energy analyzers captured the ion beam profiles. The work was performed at the LArge Plasma Device at the Basic Plasma Science Facility (BaPSF) at UCLA, funded by DOE/NSF.
He, Yongning; Bjorkman, Pamela J.
2011-01-01
Fc receptors transport maternal antibodies across epithelial cell barriers to passively immunize newborns. FcRY, the functional counterpart of mammalian FcRn (a major histocompatibility complex homolog), transfers IgY across the avian yolk sac, and represents a new class of Fc receptor related to the mammalian mannose receptor family. FcRY and FcRn bind immunoglobulins at pH ≤6.5, but not pH ≥7, allowing receptor–ligand association inside intracellular vesicles and release at the pH of blood. We obtained structures of monomeric and dimeric FcRY and an FcRY–IgY complex and explored FcRY's pH-dependent binding mechanism using electron cryomicroscopy (cryoEM) and small-angle X-ray scattering. The cryoEM structure of FcRY at pH 6 revealed a compact double-ring “head,” in which the N-terminal cysteine-rich and fibronectin II domains were folded back to contact C-type lectin-like domains 1–6, and a “tail” comprising C-type lectin-like domains 7–8. Conformational changes at pH 8 created a more elongated structure that cannot bind IgY. CryoEM reconstruction of FcRY dimers at pH 6 and small-angle X-ray scattering analysis at both pH values confirmed both structures. The cryoEM structure of the FcRY–IgY revealed symmetric binding of two FcRY heads to the dimeric FcY, each head contacting the CH4 domain of one FcY chain. FcRY shares structural properties with mannose receptor family members, including a head and tail domain organization, multimerization that may regulate ligand binding, and pH-dependent conformational changes. Our results facilitate understanding of immune recognition by the structurally related mannose receptor family and comparison of diverse methods of Ig transport across evolution. PMID:21746914
Davis, Jennifer C; Bryan, Stirling; Li, Linda C; Best, John R; Hsu, Chun Liang; Gomez, Caitlin; Vertes, Kelly A; Liu-Ambrose, Teresa
2015-07-05
Ascertaining individuals' quality of life and wellbeing is essential in public health and clinical research. The impact of these two pressing geriatric syndromes--impaired mobility and cognitive function--on wellbeing and quality of life is not well examined. Hence, our objective was to identify key clinically relevant outcome measures of mobility and cognitive function that explain variation in wellbeing and health related quality of life (HRQoL) among community dwelling older adults. We conducted a cross-sectional analysis of 229 participants presenting to the Vancouver Falls Prevention Clinic from June 2010 through October 2013. The linear regression models included two dependent variables: the ICECAP-O assessing wellbeing and the EQ-5D-3L assessing HRQoL. Key independent variables included the Short Performance Physical Battery (SPPB) and the Montreal Cognitive Assessment (MoCA). Covariates included Functional Comorbidity Index (FCI), sex and age. In the two multiple linear regression models, age was statistically controlled. Other covariates (i.e., sex and FCI) were included based on statistical significance (i.e., p < 0.05). The SPPB was significantly associated with HRQoL and with wellbeing after adjusting for known covariates (p < 0.05, Unstandardized ß (Standard Error) 0.023 (0.006) for HRQoL and 0.016 (0.003) for wellbeing). The MoCA was significantly associated with wellbeing after adjusting for known covariates (p = 0.006), Unstandardized ß (Standard Error) 0.005 (0.002) but not with health related quality of life (p > 0.05). We found that a measure of mobility and balance was associated with HRQoL and wellbeing. However, cognitive function was associated with wellbeing only. This study highlights the potential importance of considering wellbeing as an outcome measure if interventions are intended to have a broader impact than health alone.
Fast-food menu offerings vary in dietary quality, but are consistently poor.
Kirkpatrick, Sharon I; Reedy, Jill; Kahle, Lisa L; Harris, Jennifer L; Ohri-Vachaspati, Punam; Krebs-Smith, Susan M
2014-04-01
To evaluate five popular fast-food chains' menus in relation to dietary guidance. Menus posted on chains' websites were coded using the Food and Nutrient Database for Dietary Studies and MyPyramid Equivalents Database to enable Healthy Eating Index-2005 (HEI-2005) scores to be assigned. Dollar or value and kids' menus and sets of items promoted as healthy or nutritious were also assessed. Five popular fast-food chains in the USA. Not applicable. Full menus scored lower than 50 out of 100 possible points on the HEI-2005. Scores for Total Fruit, Whole Grains and Sodium were particularly dismal. Compared with full menus, scores on dollar or value menus were 3 points higher on average, whereas kids' menus scored 10 points higher on average. Three chains marketed subsets of items as healthy or nutritious; these scored 17 points higher on average compared with the full menus. No menu or subset of menu items received a score higher than 72 out of 100 points. The poor quality of fast-food menus is a concern in light of increasing away-from-home eating, aggressive marketing to children and minorities, and the tendency for fast-food restaurants to be located in low-income and minority areas. The addition of fruits, vegetables and legumes; replacement of refined with whole grains; and reformulation of offerings high in sodium, solid fats and added sugars are potential strategies to improve fast-food offerings. The HEI may be a useful metric for ongoing monitoring of fast-food menus.
Daily mood ratings via text message as a proxy for clinic based depression assessment.
Aguilera, Adrian; Schueller, Stephen M; Leykin, Yan
2015-04-01
Mobile and automated technologies are increasingly becoming integrated into mental health care and assessment. The purpose of this study was to determine how automated daily mood ratings are related to the Patient Health Questionnaire-9 (PHQ-9), a standard measure in the screening and tracking of depressive symptoms. There was a significant relationship between daily mood scores and PHQ-9 scores, and between one-week average mood scores and PHQ-9 scores, controlling for linear change in depression scores. PHQ-9 scores were not related to the average of two week mood ratings. This study also constructed models using variance, maximum, and minimum values of mood ratings in the preceding week and two-week periods as predictors of PHQ-9. None of these variables significantly predicted PHQ-9 scores when controlling for daily mood ratings and the corresponding averages for each period. This study only assessed patients who were in treatment for depression, therefore findings might not generalize to the relationship between text message mood ratings for those who are not depressed. The sample was also predominantly Spanish speaking and low-income making generalizability to other populations uncertain. Our results show that automatic text message based mood ratings can be a clinically useful proxy for the PHQ-9. Importantly, this approach avoids the limitations of the PHQ-9 administration, which include length and a higher requirement for literacy. Copyright © 2015 Elsevier B.V. All rights reserved.
Schoenberg, Mike R; Rum, Ruba S
2017-11-01
Rapid, clear and efficient communication of neuropsychological results is essential to benefit patient care. Errors in communication are a lead cause of medical errors; nevertheless, there remains a lack of consistency in how neuropsychological scores are communicated. A major limitation in the communication of neuropsychological results is the inconsistent use of qualitative descriptors for standardized test scores and the use of vague terminology. PubMed search from 1 Jan 2007 to 1 Aug 2016 to identify guidelines or consensus statements for the description and reporting of qualitative terms to communicate neuropsychological test scores was conducted. The review found the use of confusing and overlapping terms to describe various ranges of percentile standardized test scores. In response, we propose a simplified set of qualitative descriptors for normalized test scores (Q-Simple) as a means to reduce errors in communicating test results. The Q-Simple qualitative terms are: 'very superior', 'superior', 'high average', 'average', 'low average', 'borderline' and 'abnormal/impaired'. A case example illustrates the proposed Q-Simple qualitative classification system to communicate neuropsychological results for neurosurgical planning. The Q-Simple qualitative descriptor system is aimed as a means to improve and standardize communication of standardized neuropsychological test scores. Research are needed to further evaluate neuropsychological communication errors. Conveying the clinical implications of neuropsychological results in a manner that minimizes risk for communication errors is a quintessential component of evidence-based practice. Copyright © 2017 Elsevier B.V. All rights reserved.
A Tale of Two Curricula: The performance of two thousand students in introductory electromagnetism
NASA Astrophysics Data System (ADS)
Schatz, Michael; Kohlmyer, Matthew; Caballero, Marcos; Chabay, Ruth; Sherwood, Bruce; Catrambone, Richard; Marr, Marcus; Haugen, Mark; Ding, Lin
2009-03-01
Student performance in introductory calculus-based electromagnetism (E&M) courses at four large research universities was measured using the Brief Electricity and Magnetism Assessment (BEMA). Two different curricula were used at these universities: a traditional E&M curriculum and the Matter & Interactions (M&I) curriculum. At each university, post-instruction BEMA test averages were significantly higher for the M&I curriculum than for the traditional curriculum. The differences in post-test averages cannot be explained by differences in variables such as pre-instruction BEMA scores, grade point average, or SAT scores.
Relating illness complexity to reimbursement in CKD patients.
Bessette, Russell W; Carter, Randy L
2011-01-01
Despite significant investments of federal and state dollars to transition patient medical records to an all-electronic system, a chasm still exists between health care quality and payment for it. A major reason for this gap is the difficulty in evaluating health care outcomes based on claims data. Since both payers and patients may not appreciate how illness complexity impacts treatment outcomes, it is difficult to determine fair provider compensation. Chronic kidney disease (CKD) typifies these problems and is often associated with comorbidities that impact cost, health, and work productivity. Thus, the objective of this study was to evaluate an illness complexity score (ICS) based on a linear regression of select blood values that might assist in predicting average monthly reimbursements in CKD patients. A second objective was to compare the results of this ICS prediction to results obtained by prediction of average monthly reimbursement using CKD stage. A third objective was to analyze the relationship between the change in ICS, estimated glomerular filtration rate (eGFR), and CKD stage over time to average monthly reimbursement. We calculated parsimonious values for select variables associated with CKD patients and compared the ICS to ordinal staging of renal disease. Data from 177 de-identified patients over 13 months was collected, which included 15 blood chemistry observations along with complete claims data for all medical expenses. To test for the relationship between average blood chemistry values, stages of CKD, age, and average monthly reimbursement, we modeled an association through a linear regression function of age, eGFR, and the Z-scores calculated from average monthly values of phosphorus, parathyroid hormone, glucose, hemoglobin, bicarbonate, albumin, creatinine, blood urea nitrogen, potassium, calcium, sodium, alkaline phosphatase, alanine aminotransferase, and white blood cells. The results of our study demonstrated that the association between average ICS values throughout the entire study period predicted average monthly reimbursements with an R(2) value of 0.41. Comparing that value to the association between the average CKD stage and average monthly reimbursement demonstrated an R(2) value of 0.08. Thus, ICS offers five times greater sensitivity over CKD staging as a measure of illness complexity. Sorting the patient population by changes in CKD stage or ICS over the entire study period revealed significant differences between the two scoring methods. Groups scored by ICS demonstrated greater sensitivity by capturing dysfunction in other organ systems and had a better association with reimbursement than groups scored by CKD staging.
The effect of short-term workshop on improving clinical reasoning skill of medical students
Yousefichaijan, Parsa; Jafari, Farshad; Kahbazi, Manijeh; Rafiei, Mohammad; Pakniyat, AbdolGhader
2016-01-01
Background: Clinical reasoning process leads clinician to get purposeful steps from signs and symptoms toward diagnosis and treatment. This research intends to investigate the effect of teaching clinical reasoning on problem-solving skills of medical students. Methods: This research is a semi-experimental study. Nineteen Medical student of the pediatric ward as case group participated in a two-day workshop for training clinical reasoning. Before the workshop, they filled out Diagnostic Thinking Inventory (DTI) questionnaires. Fifteen days after the workshop the DTI questionnaire completed and "key feature" (KF) test and "clinical reasoning problem" (CRP) test was held. 23 Medical student as the control group, without passing the clinical reasoning workshop DTI questionnaire completed, and KF test and CRP test was held. Results: The average score of the DTI questionnaire in the control group was 162.04 and in the case group before the workshop was 153.26 and after the workshop was 181.68. Compare the average score of the DTI questionnaire before and after the workshop there is a significant difference. The difference between average KF test scores in the control and the case group was not significant but between average CRP test scores was significant. Conclusion: Clinical reasoning workshop is effectiveness in promoting problem-solving skills of students. PMID:27579286
Assessment for apraxia in mild cognitive impairment and Alzheimer's dise
Ward, Mirela; Cecato, Juliana F.; Aprahamian, Ivan; Martinelli, José Eduardo
2015-01-01
Objective To evaluate apraxia in healthy elderly and in patients diagnosed with Alzheimer's disease (AD) and Mild cognitive impairment (MCI). Methods We evaluated 136 subjects with an average age of 75.74 years (minimum 60 years old, maximum 92 years old) and average schooling of 9 years (minimum of 7 and a maximum of 12 years), using the Mini-Mental State examination (MMSE), Cambridge Cognitive Examination (CAMCOG) and the Clock Drawing Test. For the analysis of the presence of apraxia, eight subitems from the CAMCOG were selected: the drawings of the pentagon, spiral, house, clock; and the tasks of putting a piece of paper in an envelope; the correct one hand waiving "Goodbye" movements; paper cutting using scissors; and brushing teeth. Results Elder controls had an average score of 11.51, compared to MCI (11.13), and AD patients, whose average apraxia test scores were the lowest (10.23). Apraxia scores proved able to differentiate the three groups studied (p=0.001). In addition, a negative correlation was observed between apraxia and MMSE scores. Conclusion We conclude that testing for the presence of apraxia is important in the evaluation of patients with cognitive impairments and may help to differentiate elderly controls, MCI and AD. PMID:29213944
The effect of short-term workshop on improving clinical reasoning skill of medical students.
Yousefichaijan, Parsa; Jafari, Farshad; Kahbazi, Manijeh; Rafiei, Mohammad; Pakniyat, AbdolGhader
2016-01-01
Clinical reasoning process leads clinician to get purposeful steps from signs and symptoms toward diagnosis and treatment. This research intends to investigate the effect of teaching clinical reasoning on problem-solving skills of medical students. This research is a semi-experimental study. Nineteen Medical student of the pediatric ward as case group participated in a two-day workshop for training clinical reasoning. Before the workshop, they filled out Diagnostic Thinking Inventory (DTI) questionnaires. Fifteen days after the workshop the DTI questionnaire completed and "key feature" (KF) test and "clinical reasoning problem" (CRP) test was held. 23 Medical student as the control group, without passing the clinical reasoning workshop DTI questionnaire completed, and KF test and CRP test was held. The average score of the DTI questionnaire in the control group was 162.04 and in the case group before the workshop was 153.26 and after the workshop was 181.68. Compare the average score of the DTI questionnaire before and after the workshop there is a significant difference. The difference between average KF test scores in the control and the case group was not significant but between average CRP test scores was significant. Clinical reasoning workshop is effectiveness in promoting problem-solving skills of students.
Outcomes and radiographic findings of anatomic press-fit radial head arthroplasty.
Levy, Jonathan C; Formaini, Nathan T; Kurowicki, Jennifer
2016-05-01
Radial head arthroplasty (RHA) is a popular method of treatment for complex fractures of the radial head. The purpose of this study was to investigate patient outcomes and radiographic findings associated with a single anatomic monopolar press-fit radial head system commonly used for the treatment of radial head fractures. A retrospective review of prospectively collected data was performed for a consecutive series of patients treated with a press-fit anatomically designed RHA between November 2007 and April 2014. The most recent radiographs were evaluated for loosening, stress shielding, and instability. Postoperative motion and outcomes were reported at most recent follow-up. At an average follow-up of 30 months, 6 of the 15 patients (40%) demonstrated radiographic loosening. Six of the 9 patients (67%) without loosening demonstrated stress shielding (average, 6 mm). Functional outcome scores included a mean American Shoulder and Elbow Surgeons score of 70, Mayo Elbow Performance Score of 85, visual analog scale score for pain of 2, visual analog scale score for function of 7, and Single Assessment Numeric Evaluation score of 75. Average flexion-extension arc was 14° to 138°, and average pronation-supination was 75° to 74°. All 6 of the patients with radiographic loosening had undergone RHA with an associated ligamentous injury repair. Satisfaction among patients was high as no patient reported an unsatisfactory outcome. The use of an anatomic, press-fit monopolar RHA in the management of acute complex radial head fractures has yielded excellent clinical outcomes despite high rates of radiographic loosening and stress shielding. Press-fit RHA in the setting of ligamentous injury warrants further investigation because of a high rate of implant loosening observed. Copyright © 2016 Journal of Shoulder and Elbow Surgery Board of Trustees. Published by Elsevier Inc. All rights reserved.
NASA Astrophysics Data System (ADS)
Baumgarten, Kristyne A.
This study investigated the possible relationship between collaborative learning strategies and the learning of core concepts. This study examined the differences between two groups of nursing students enrolled in an introductory microbiology laboratory course. The control group consisted of students enrolled in sections taught in the traditional method. The experimental group consisted of those students enrolled in the sections using collaborative learning strategies. The groups were assessed on their degrees of learning core concepts using a pre-test/post-test method. Scores from the groups' laboratory reports were also analyzed. There was no difference in the two group's pre-test scores. The post-test scores of the experimental group averaged 11 points higher than the scores of the control group. The lab report scores of the experimental group averaged 15 points higher than those scores of the control group. The data generated from this study demonstrated that collaborative learning strategies can be used to increase students learning of core concepts in microbiology labs.
Hicks, Andrew L; Handcock, Mark S; Sastry, Narayan; Pebley, Anne R
2018-02-01
Prior research has suggested that children living in a disadvantaged neighborhood have lower achievement test scores, but these studies typically have not estimated causal effects that account for neighborhood choice. Recent studies used propensity score methods to account for the endogeneity of neighborhood exposures, comparing disadvantaged and nondisadvantaged neighborhoods. We develop an alternative propensity function approach in which cumulative neighborhood effects are modeled as a continuous treatment variable. This approach offers several advantages. We use our approach to examine the cumulative effects of neighborhood disadvantage on reading and math test scores in Los Angeles. Our substantive results indicate that recency of exposure to disadvantaged neighborhoods may be more important than average exposure for children's test scores. We conclude that studies of child development should consider both average cumulative neighborhood exposure and the timing of this exposure.
Hicks, Andrew L.; Handcock, Mark S.; Sastry, Narayan
2018-01-01
Prior research has suggested that children living in a disadvantaged neighborhood have lower achievement test scores, but these studies typically have not estimated causal effects that account for neighborhood choice. Recent studies used propensity score methods to account for the endogeneity of neighborhood exposures, comparing disadvantaged and nondisadvantaged neighborhoods. We develop an alternative propensity function approach in which cumulative neighborhood effects are modeled as a continuous treatment variable. This approach offers several advantages. We use our approach to examine the cumulative effects of neighborhood disadvantage on reading and math test scores in Los Angeles. Our substantive results indicate that recency of exposure to disadvantaged neighborhoods may be more important than average exposure for children's test scores. We conclude that studies of child development should consider both average cumulative neighborhood exposure and the timing of this exposure. PMID:29192386
Exploring relationships between hospital patient safety culture and Consumer Reports safety scores.
Smith, Scott Alan; Yount, Naomi; Sorra, Joann
2017-02-16
A number of private and public companies calculate and publish proprietary hospital patient safety scores based on publicly available quality measures initially reported by the U.S. federal government. This study examines whether patient safety culture perceptions of U.S. hospital staff in a large national survey are related to publicly reported patient safety ratings of hospitals. The Agency for Healthcare Research and Quality Hospital Survey on Patient Safety Culture (Hospital SOPS) assesses provider and staff perceptions of hospital patient safety culture. Consumer Reports (CR), a U.S. based non-profit organization, calculates and shares with its subscribers a Hospital Safety Score calculated annually from patient experience survey data and outcomes data gathered from federal databases. Linking data collected during similar time periods, we analyzed relationships between staff perceptions of patient safety culture composites and the CR Hospital Safety Score and its five components using multiple multivariate linear regressions. We analyzed data from 164 hospitals, with patient safety culture survey responses from 140,316 providers and staff, with an average of 856 completed surveys per hospital and an average response rate per hospital of 56%. Higher overall Hospital SOPS composite average scores were significantly associated with higher overall CR Hospital Safety Scores (β = 0.24, p < 0.05). For 10 of the 12 Hospital SOPS composites, higher patient safety culture scores were associated with higher CR patient experience scores on communication about medications and discharge. This study found a relationship between hospital staff perceptions of patient safety culture and the Consumer Reports Hospital Safety Score, which is a composite of patient experience and outcomes data from federal databases. As hospital managers allocate resources to improve patient safety culture within their organizations, their efforts may also indirectly improve consumer-focused, publicly reported hospital rating scores like the Consumer Reports Hospital Safety Score.
Gunasekaran, Vanishree; Venkatesh, V. Mathan Kumar; Asokan, T. V.
2016-01-01
Background: Soft neurological signs are minor, non localizing, objective abnormalities, thought to reflect damage in cortical and sub-cortical connections or connections within different cortical regions. Regional structural grey matter anomalies have already been observed and correlated with the presence of cognitive deficits and presence of soft neurological signs in schizophrenic patients. Materials and Methods: Drug naive patients presenting with first episode of psychosis (FEP)were clinically evaluated for soft neurological signs using the Cambridge Neurological Inventory. The soft neurological signs scores were compared with scores in healthy volunteers. In the patient group, this score was also correlated with demographic and disorder variables. Results: Of the 30 patients with FEP, 60% were women. The average age of the participant was 36.2 years. The average duration of illness was 1.55 years. More than 50% of the patients had schizophrenia. 93.3% of patients with FEP had atleast one soft neurological sign compared to 16.6% of controls. The average score on BPRS was 25.86 and on PANSS was 39.29, and BPRS, PANSS scores had a significant correlation with total soft neurological signs score. Conclusion: There is a significantly higher incidence of soft neurological signs in patients with FEP, particularly schizophrenia. The presence of soft signs correlated with the severity of psychosis. PMID:27833222
ERIC Educational Resources Information Center
Bishop, Somer L.; Farmer, Cristan; Thurm, Audrey
2015-01-01
Nonverbal IQ (NVIQ) was examined in 84 individuals with autism spectrum disorder (ASD) followed from age 2 to 19. Most adults who scored in the range of intellectual disability also received scores below 70 as children, and the majority of adults with scores in the average range had scored in this range by age 3. However, within the lower ranges…
van Staaveren, N; Teixeira, D L; Hanlon, A; Boyle, L A
2017-01-01
Tail lesions are important pig welfare indicators that could be recorded during meat inspection as they are more visible on the carcass than on the live animal. Tail biting is associated with reduced performance in the bitten pig, but it is not clear whether problems with tail biting are reflected in general farm performance figures. Farm advisory services aim to improve farm productivity which could be associated with improvements in pig welfare. Record keeping forms an integral part of such advisory services. The aim of this study was to examine the influence of record keeping in the Teagasc eProfit Monitor (ePM herds) on the prevalence of tail lesion severity scores in Irish slaughter pigs. In addition, we investigated associations between the prevalence of tail lesion scores and production parameters at farm level in ePM herds. Pigs were observed after scalding/dehairing and tail lesion score (0 to 4), sex and farm identification were recorded. Tail lesion scores were collapsed into none/mild lesions (score ⩽1), moderate lesions (score 2) and severe lesions (score ⩾3). The effect of record keeping (ePM herd) on the different tail lesion outcomes was analysed at batch level using the events/trials structure in generalized linear mixed models (PROC GLIMMIX). Spearman's rank correlations were calculated between average tail lesion score of a batch and production parameters. A total of 13 133 pigs were assessed from 73 batches coming from 61 farms. In all, 23 farms were identified as ePM herds. The average prevalence of moderate tail lesions was 26.8% and of severe tail lesions was 3.4% in a batch. Batches coming from ePM herds had a lower prevalence of moderate tail lesions than non-ePM herds (P<0.001). Average tail lesion score was negatively associated with age (P<0.05) and weight (P<0.05) at sale/transfer of weaners, and tended to be positively associated with the number of finishing days (P=0.06). In addition, the prevalence of severe tail lesions was negatively associated with average daily gain in weaners (P<0.05) and tended to do so with average daily gain in finishers (P=0.08). This study provides the first indication that record keeping through an advisory service may help to lower the risk of tail biting, which is associated with improved farm performance.
Martin, Phillip K; Schroeder, Ryan W
2014-06-01
The Designs subtest allows for accumulation of raw score points by chance alone, creating the potential for artificially inflated performances, especially in older patients. A random number generator was used to simulate the random selection and placement of cards by 100 test naive participants, resulting in a mean raw score of 36.26 (SD = 3.86). This resulted in relatively high-scaled scores in the 45-54, 55-64, and 65-69 age groups on Designs II. In the latter age group, in particular, the mean simulated performance resulted in a scaled score of 7, with scores 1 SD below and above the performance mean translating to scaled scores of 5 and 8, respectively. The findings indicate that clinicians should use caution when interpreting Designs II performance in these age groups, as our simulations demonstrated that low average to average range scores occur frequently when patients are relying solely on chance performance. © The Author 2014. Published by Oxford University Press. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.
ERIC Educational Resources Information Center
Kasapoglu, Koray
2014-01-01
This study aims to investigate which factors are associated with Turkey's 15-year-olds' scoring above the OECD average (493) on the PISA'09 reading assessment. Collected from a total of 4,996 15-year-old students from Turkey, data were analyzed by logistic regression analysis in order to model the data of students who were split into two: (1)…
Development of website for studying modern physics
NASA Astrophysics Data System (ADS)
Saehana, S.; Wahyono, U.; Darmadi, I. W.; Kendek, Y.; Widyawati, W.
2018-03-01
The purpose of this study is to produce a website in modern physics courses in order to increase student interest in physics learning. To determine the feasibility level of learning media then feasibility test to the product. The feasibility test carried out on the product is divided into three parts: material feasibility test, media feasibility test, and student response test. Based on the results of the test conducted the material obtained an average score of 3.72 and categorized very well. The result of media test that was obtained got the average score of 3.25 and categorized well. The result of the analysis of student's response to the twenty students of class A (fifth semester) of physics education program FKIP UniversitasTadulako obtained an average score of 3.16 with the good category. The results showed that the website developed can be used as one of the learning media that can support the learning process of students.
Physical fitness and academic performance: a pilot investigation in USU medical students.
Stephens, Mark B; Dong, Ting; Durning, Steven J
2015-04-01
This study examined the correlations between physical fitness parameters and standard measures of academic performance in a cohort of students at the Uniformed Services University. Significant positive correlations were noted between the average aerobic fitness score and preclerkship grade point average (GPA; r = 0.37, p < 0.05) and cumulative GPA (r = 0.38, p < 0.05). Positive correlations were also noted between the average overall fitness score and preclerkship GPA (r = 0.34, p < 0.05), medical school cumulative GPA (r = 0.34, p < 0.05), and the score on Step 1 of the national board examination (r = -0.33, p < 0.05). Physical fitness may serve as one indicator to predict which students will succeed in medical school and to identify those who are at risk for poor performance and might benefit from a wellness intervention. Reprint & Copyright © 2015 Association of Military Surgeons of the U.S.
Nepomuceno, Bárbara Barbosa; Cardoso, Antonio Alan Vieira; Ximenes, Verônica Morais; Barros, João Paulo Pereira; Leite, Jáder Ferreira
2016-01-01
This article analyzes the relations between mental health and well-being in urban and rural contexts marked by poverty. The analysis takes as its basis a quantitative research conducted with 417 adult inhabitants of two communities, one rural and the other urban, in Northeastern Brazil. The data were constructed using questionnaires composed of sociodemographic data, the Personal Wellbeing Index and Self Report Questionnaire (SRQ-20) scales. We found significant differences between the inhabitants of the rural and urban communities regarding well-being and the prevalence of common mental disorders (CMD), with a higher average well-being score in the rural context; the urban sample had a higher average regarding the prevalence of CMD. The variable income significantly influenced the SRQ-20 average scores; the same was not observed with well-being scores. Besides, it was observed that there is a negative correlation with well-being and CMD.
Wang, Hu; Wei, Xing; Liu, Ping; Fu, Ya-Hui; Wang, Peng-Fei; Cong, Yu-Xuan; Zhang, Bin-Fei; Li, Zhong; Lei, Jin-Lai; Zhang, Kun; Zhuang, Yan
2017-11-01
The aim of this study was to assess Physical Component Summary (PCS), Mental Component Summary (MCS) of the Mos 36-item Short Form Health Survey (SF-36) score, and the virtual Analogue Scale (VAS) of pain during the treatment period and the complication rate associated with infected nonunion of the tibia managed surgically by bone transport.This is a retrospective analysis of prospectively collected data in a consecutive patient cohort. Patients suffering from infected nonunion of the tibia were treated by bone transport from 2012 to 2014. Follow-up was for at least 2 years after complete osseous consolidation. Standardized treatment included bacterial eradication by segmental resection, bone transport using Ilizarov apparatus, and docking maneuver. The main outcome measurements consisted of the quality of life (PCS and MCS scores) and the VAS of pain during the different stages of therapy. In addition, all complications were documented.Our series comprised 12 men and 3 women with an average age of 36.9 years (range: 20-55 years). All patients previously undergone an average of 2.9 operations (range: 1-6 operations). In all patients, bone defects were present with a mean size of 7.5 cm (range: 3-12 cm), and all patients were suffering from soft tissue defects (range: 5-17 cm). The mean external fixator time (EFT) was 48 weeks (range: 30-62 weeks) and the mean external fixation index was 43.1 days/cm (range: 33-62 days/cm). All patients achieved bone union, and no recurrence of infection was observed. According to the Paley classification, patients suffered 15 minor and 13 major complications. The average complication rate per patient comprised of 1.0 minor and 0.9 major complications. Bone grafting was required in 6 cases at the docking site. One patient suffered from equinus deformity, and refused any further surgical procedures. We performed 28 operations in 15 patients (average 1.9 operations per patient). After the period of bone transport, PCS and MCS scores increased continuously. After completed consolidation, the average MCS score was comparable to a normal collective, and the average VAS score was 1.87 (range: 0-3).Bone transport is a safe option for the treatment of infected nonunion of the tibia despite the high complication rate. The arduous and demanding nature of this treatment subjects patient to considerable the pain, mental, and physical stress. The average VAS scores, PCS, and MCS scores significantly improve at final follow-up. It is essential to communicate this fact to the patients and their relatives before the application of the frame in order to increase their compliance with the long and emotionally draining treatment.
Effectiveness of Multimedia for Transplant Preparation for Kidney Transplant Waiting List Patients.
Charoenthanakit, C; Junchotikul, P; Sittiudomsuk, R; Saiyud, A; Pratumphai, P
2016-04-01
A multimedia program could effectively advise patients about preparing for transplantation while on the waiting list for a kidney transplant. This study aimed to compare knowledge about transplant preparation for patients on a kidney transplant waiting list before and after participating in a multimedia program, and to evaluate patient satisfaction with the multimedia program. Research design was quasiexperimental with the use of 1 group. Subjects were 186 patients on the kidney transplant waiting list after HLA matching in Ramathibodi Hospital. The questionnaires were developed by the researchers. The statistical tools used were basic statistics, percentage, average, standard deviation, and the difference of score between before and after participation in the multimedia program (t test). The evaluation knowledge for transplant preparation for kidney transplant waiting list patients after participating in the multimedia program averaged 85.40%, and there was an increased improvement of score by an average 3.27 out of a possible full score of 20 (P < .05). The result of patient satisfaction for the multimedia program had good average, 4.58. Copyright © 2016 Elsevier Inc. All rights reserved.
Seniority Number in Valence Bond Theory.
Chen, Zhenhua; Zhou, Chen; Wu, Wei
2015-09-08
In this work, a hierarchy of valence bond (VB) methods based on the concept of seniority number, defined as the number of singly occupied orbitals in a determinant or an orbital configuration, is proposed and applied to the studies of the potential energy curves (PECs) of H8, N2, and C2 molecules. It is found that the seniority-based VB expansion converges more rapidly toward the full configuration interaction (FCI) or complete active space self-consistent field (CASSCF) limit and produces more accurate PECs with smaller nonparallelity errors than its molecular orbital (MO) theory-based analogue. Test results reveal that the nonorthogonal orbital-based VB theory provides a reverse but more efficient way to truncate the complete active Hilbert space by seniority numbers.
Measuring Conceptual Gains and Benefits of Student Problem Designs
NASA Astrophysics Data System (ADS)
Mandell, Eric; Snyder, Rachel; Oswald, Wayne
2011-10-01
Writing assignments can be an effective way of getting students to practice higher-order learning skills in physics. One example of such an assignment is that of problem design. One version of the problem design assignment asks the student to evaluate the material from a chapter, after all instruction and other activities are complete. The student is to decide what concepts and ideas are most central, or critical in the chapter, and construct a problem that he or she feels best encompasses the major themes. Here, we use two concept surveys (FCI and EMCS) to measure conceptual gains for students completing the problem design assignment and present the preliminary results, comparing across several categories including gender, age, degree program, and class standing.
Tri-Service Literacy and Readability: Workshop Proceedings.
1980-03-01
LN zC t’ DC D -2l C CC U CC., r C CzC.C-.C, CC C ~ ., caCQ.. *’UC - -C CL UQC’CC Ci - CT 0 --. . C DJZDCU- CC C C. C C...8217 flCCD.- CC, CCC~4J o zC C-Ca C ,.-C,-.O ,-,- CC CC,.. -- r C C,- -z~~~~~~~~~~~~~~~ (U’~’ C- O’ ,.0 C CCC,.. D Ca D CCCO.C - 0.a l F--Ci E CC CC CDO C C...understanding in problem solving. In Catellan, N. J., Jr., Pisoni, D . B., & Potts G. R . (Eds.), Cognitive theory. Hillsdale, NJ: Lawrence Erlbaum
Quality assessment of online patient education resources for peripheral neuropathy.
Hansberry, David R; Suresh, Ragha; Agarwal, Nitin; Heary, Robert F; Goldstein, Ira M
2013-03-01
Given its practicality, the internet is a primary resource for patients afflicted with diseases like peripheral neuropathy. Therefore, it is important that the readily available online resources on peripheral neuropathy are tailored to the general public, particularly concerning readability. Patient education resources were downloaded from the US National Library of Medicine, Mayo Clinic, National Institute of Neurological Disorders and Stroke, Neuropathy.org, GBS/CIDP Foundation International, Hereditary Neuropathy Foundation, Charcot-Marie-Tooth Association, Foundation for Peripheral Neuropathy, and Neuropathy Action Foundation websites. All patient education material related to peripheral neuropathy was evaluated for its level of readability using the Flesch Reading Ease (FRE) and Flesch-Kincaid Grade Level. The FRE scores averaged 43.4 with only the US National Library of Medicine scoring above 60 (76.5). The Flesch-Kincaid Grade Level scores averaged 11.0. All scores were above a seventh-grade level except the US National Library of Medicine, which had a score of a fifth-grade reading level. Most Americans may not fully benefit from patient education resources concerning peripheral neuropathy education on many of the websites. Only the US National Library of Medicine, which is written at a fifth-grade level, is likely to benefit the average American. © 2013 Peripheral Nerve Society.
Emotional intelligence and clinical performance/retention of nursing students
Marvos, Chelsea; Hale, Frankie B.
2015-01-01
Objective: This exploratory, quantitative, descriptive study was undertaken to explore the relationship between clinical performance and anticipated retention in nursing students. Methods: After approval by the university's Human Subjects Committee, a sample of 104 nursing students were recruited for this study, which involved testing with a valid and reliable emotional intelligence (EI) instrument and a self-report survey of clinical competencies. Results: Statistical analysis revealed that although the group average for total EI score and the 6 score subsets were in the average range, approximately 30% of the individual total EI scores and 30% of two branch scores, identifying emotions correctly and understanding emotions, fell in the less than average range. This data, as well as the analysis of correlation with clinical self-report scores, suggest recommendations applicable to educators of clinical nursing students. Conclusions: Registered nurses make-up the largest segment of the ever-growing healthcare workforce. Yet, retention of new graduates has historically been a challenge for the profession. Given the projected employment growth in nursing, it is important to identify factors which correlate with high levels of performance and job retention among nurses. There is preliminary evidence that EI a nontraditional intelligence measure relates positively not only with retention of clinical staff nurses, but with overall clinical performance as well. PMID:27981096
Emotional intelligence and clinical performance/retention of nursing students.
Marvos, Chelsea; Hale, Frankie B
2015-01-01
This exploratory, quantitative, descriptive study was undertaken to explore the relationship between clinical performance and anticipated retention in nursing students. After approval by the university's Human Subjects Committee, a sample of 104 nursing students were recruited for this study, which involved testing with a valid and reliable emotional intelligence (EI) instrument and a self-report survey of clinical competencies. Statistical analysis revealed that although the group average for total EI score and the 6 score subsets were in the average range, approximately 30% of the individual total EI scores and 30% of two branch scores, identifying emotions correctly and understanding emotions, fell in the less than average range. This data, as well as the analysis of correlation with clinical self-report scores, suggest recommendations applicable to educators of clinical nursing students. Registered nurses make-up the largest segment of the ever-growing healthcare workforce. Yet, retention of new graduates has historically been a challenge for the profession. Given the projected employment growth in nursing, it is important to identify factors which correlate with high levels of performance and job retention among nurses. There is preliminary evidence that EI a nontraditional intelligence measure relates positively not only with retention of clinical staff nurses, but with overall clinical performance as well.
Pantic, Igor; Damjanovic, Aleksandar; Todorovic, Jovana; Topalovic, Dubravka; Bojovic-Jovic, Dragana; Ristic, Sinisa; Pantic, Senka
2012-03-01
Frequent use of Facebook and other social networks is thought to be associated with certain behavioral changes, and some authors have expressed concerns about its possible detrimental effect on mental health. In this work, we investigated the relationship between social networking and depression indicators in adolescent population. Total of 160 high school students were interviewed using an anonymous, structured questionnaire and Back Depression Inventory - second edition (BDI-II-II). Apart from BDI-II-II, students were asked to provide the data for height and weight, gender, average daily time spent on social networking sites, average time spent watching TV, and sleep duration in a 24-hour period. Average BDI-II-II score was 8.19 (SD=5.86). Average daily time spent on social networking was 1.86 h (SD=2.08 h), and average time spent watching TV was 2.44 h (SD=1.74 h). Average body mass index of participants was 21.84 (SD=3.55) and average sleep duration was 7.37 (SD=1.82). BDI-II-II score indicated minimal depression in 104 students, mild depression in 46 students, and moderate depression in 10 students. Statistically significant positive correlation (p<0.05, R=0.15) was found between BDI-II-II score and the time spent on social networking. Our results indicate that online social networking is related to depression. Additional research is required to determine the possible causal nature of this relationship.
Heath, Elizabeth M; English, Jeryl D; Johnson, Cleverick D; Swearingen, Elizabeth B; Akyalcin, Sercan
2017-02-01
Our aims were to assess the perceptions of orthodontic case complexity among orthodontists, general dentists, orthodontic residents, and dental students and to compare their perceptions with the American Board of Orthodontics Discrepancy Index (DI). Orthodontists, general dentists, orthodontic residents, and dental students (n = 343) participated in a Web-based survey. Pretreatment orthodontic records of 29 cases with varying DI scores were obtained. Respondents were asked to evaluate case complexity on a 100-point visual analog scale. Additional information was collected on participants' orthodontic education and orthodontic treatment preferences. Pearson correlation coefficients were used to assess the relationship between the average complexity score and the DI score. Repeated measures analysis with linear mixed models was used to assess the association between the average complexity score and the DI score and whether the association between the 2 scores varied by level of difficulty or panel group. The level of significance for all analyses was set at P <0.05. The results showed that 71.6% of general dentists provided some orthodontic services, with 21.0% providing full fixed appliances and 38.3% providing clear aligners. DI score was significantly associated with complexity perceptions (P = 0.0168). Associations between average complexity and DI score varied significantly by provider group (P = 0.0033), with orthodontists and residents showing the strongest associations. When the DI score was greater than 15, orthodontists and residents perceived cases as more complex than did the other provider groups. Orthodontists and orthodontic residents had better judgments for evaluating orthodontic case complexity. The high correlation between orthodontic professionals' perceptions and DI scores suggested that additional orthodontic education and training have an influence on the ability to recognize case complexity. Copyright © 2017 American Association of Orthodontists. Published by Elsevier Inc. All rights reserved.
Web-based pathology practice examination usage.
Klatt, Edward C
2014-01-01
General and subject specific practice examinations for students in health sciences studying pathology were placed onto a free public internet web site entitled web path and were accessed four clicks from the home web site menu. Multiple choice questions were coded into. html files with JavaScript functions for web browser viewing in a timed format. A Perl programming language script with common gateway interface for web page forms scored examinations and placed results into a log file on an internet computer server. The four general review examinations of 30 questions each could be completed in up to 30 min. The 17 subject specific examinations of 10 questions each with accompanying images could be completed in up to 15 min each. The results of scores and user educational field of study from log files were compiled from June 2006 to January 2014. The four general review examinations had 31,639 accesses with completion of all questions, for a completion rate of 54% and average score of 75%. A score of 100% was achieved by 7% of users, ≥90% by 21%, and ≥50% score by 95% of users. In top to bottom web page menu order, review examination usage was 44%, 24%, 17%, and 15% of all accessions. The 17 subject specific examinations had 103,028 completions, with completion rate 73% and average score 74%. Scoring at 100% was 20% overall, ≥90% by 37%, and ≥50% score by 90% of users. The first three menu items on the web page accounted for 12.6%, 10.0%, and 8.2% of all completions, and the bottom three accounted for no more than 2.2% each. Completion rates were higher for shorter 10 questions subject examinations. Users identifying themselves as MD/DO scored higher than other users, averaging 75%. Usage was higher for examinations at the top of the web page menu. Scores achieved suggest that a cohort of serious users fully completing the examinations had sufficient preparation to use them to support their pathology education.
Improvement of the diagnostic accuracy of MRA with subtraction technique in cerebral vasospasm.
Hamaguchi, Akiyoshi; Fujima, Noriyuki; Yoshida, Daisuke; Hamaguchi, Naoko; Kodera, Shuichi
2014-01-01
Vasospasm has been considered the most severe acute complication after subarachnoid hemorrhage (SAH). MRA is not considered ideal for detecting cerebral vasospasm because of background including the hemorrhage. The aim of this study is to evaluate the efficacy of Subtraction MRA (SMRA) by comparing it to that of conventional MRA (CMRA) for diagnosis of cerebral vasospasm. Arteries were assigned to one of three categories based on the degree of MRA diagnostic quality of vasospasm (quality score): 0, bad … 2, good. Furthermore each artery was assigned to one of four categories based on the degree of vasospasm severity (SV score): 0, no vasospasm … 3, severe. The value of the difference between DSA-SV score and MRA-SV score was defined as the DIF score. CMRA and SMRA were compared for each arterial region with regard to quality score and DIF score. The average CMRA and SMRA quality score were 1.46 and 1.79; the difference was statistically significant. The average CMRA and SMRA DIF score were 1.08 and .60; the difference was statistically significant. Diagnosis of cerebral vasospasm is more accurate by SMRA than by CMRA. The advantages are its noninvasive nature and its ability to detect cerebral vasospasm. Copyright © 2014 by the American Society of Neuroimaging.
Podolsky, Dale J; Fisher, David M; Wong Riff, Karen W; Szasz, Peter; Looi, Thomas; Drake, James M; Forrest, Christopher R
2018-06-01
This study assessed technical performance in cleft palate repair using a newly developed assessment tool and high-fidelity cleft palate simulator through a longitudinal simulation training exercise. Three residents performed five and one resident performed nine consecutive endoscopically recorded cleft palate repairs using a cleft palate simulator. Two fellows in pediatric plastic surgery and two expert cleft surgeons also performed recorded simulated repairs. The Cleft Palate Objective Structured Assessment of Technical Skill (CLOSATS) and end-product scales were developed to assess performance. Two blinded cleft surgeons assessed the recordings and the final repairs using the CLOSATS, end-product scale, and a previously developed global rating scale. The average procedure-specific (CLOSATS), global rating, and end-product scores increased logarithmically after each successive simulation session for the residents. Reliability of the CLOSATS (average item intraclass correlation coefficient (ICC), 0.85 ± 0.093) and global ratings (average item ICC, 0.91 ± 0.02) among the raters was high. Reliability of the end-product assessments was lower (average item ICC, 0.66 ± 0.15). Standard setting linear regression using an overall cutoff score of 7 of 10 corresponded to a pass score for the CLOSATS and the global score of 44 (maximum, 60) and 23 (maximum, 30), respectively. Using logarithmic best-fit curves, 6.3 simulation sessions are required to reach the minimum standard. A high-fidelity cleft palate simulator has been developed that improves technical performance in cleft palate repair. The simulator and technical assessment scores can be used to determine performance before operating on patients.
Fast-food menu offerings vary in dietary quality, but are consistently poor
Kirkpatrick, Sharon I; Reedy, Jill; Kahle, Lisa L; Harris, Jennifer L; Ohri-Vachaspati, Punam; Krebs-Smith, Susan M
2013-01-01
Objective To evaluate five popular fast-food chains’ menus in relation to dietary guidance. Design Menus posted on chains’ websites were coded using the Food and Nutrient Database for Dietary Studies and MyPyramid Equivalents Database to enable Healthy Eating Index-2005 (HEI-2005) scores to be assigned. Dollar or value and kids’ menus and sets of items promoted as healthy or nutritious were also assessed. Setting Five popular fast-food chains in the USA. Subjects Not applicable. Results Full menus scored lower than 50 out of 100 possible points on the HEI-2005. Scores for Total Fruit, Whole Grains and Sodium were particularly dismal. Compared with full menus, scores on dollar or value menus were 3 points higher on average, whereas kids’ menus scored 10 points higher on average. Three chains marketed subsets of items as healthy or nutritious; these scored 17 points higher on average compared with the full menus. No menu or subset of menu items received a score higher than 72 out of 100 points. Conclusions The poor quality of fast-food menus is a concern in light of increasing away-from-home eating, aggressive marketing to children and minorities, and the tendency for fast-food restaurants to be located in low-income and minority areas. The addition of fruits, vegetables and legumes; replacement of refined with whole grains; and reformulation of offerings high in sodium, solid fats and added sugars are potential strategies to improve fast-food offerings. The HEI may be a useful metric for ongoing monitoring of fast-food menus. PMID:23317511
Oral azithromycin for treatment of posterior blepharitis.
Igami, Thais Zamudio; Holzchuh, Ricardo; Osaki, Tammy Hentona; Santo, Ruth Miyuki; Kara-Jose, Newton; Hida, Richard Y
2011-10-01
To evaluate the effects of oral azithromycin in patients with posterior blepharitis. Twenty-six eyes of 13 patients with posterior blepharitis diagnosed by a qualified ophthalmologist were enrolled in this study. Patients were instructed to use oral azithromycin 500 mg per day for 3 days in 3 cycles with 7-day intervals. Subjective clinical outcomes were graded and scored 1 day before and 30 days after the end of the treatment (53 days after initiating the treatment) based on severity scores of: (1) eyelid debris; (2) eyelid telangiectasia; (3) swelling of the eyelid margin; (4) redness of the eyelid margin; and (5) ocular mucus secretion. For the assessment of global efficacy, patients were asked by the investigator to rate the subjective symptoms (eyelid itching, ocular itching, eyelid hyperemia, ocular hyperemia, ocular mucus secretion, photophobia, foreign body sensation, and dry eye sensation) on a scale of 0 (no symptoms) to 5 (severe symptoms). Break-up time, Schirmer I test, corneal fluorescein staining score, and rose bengal staining score were also performed in all patients. All clinical outcomes scoring showed statistically significant improvement after oral azithromycin, except for eyelid swelling. Average subjective symptom grading improved statistically after treatment with oral azithromycin, except for eyelid hyperemia, photophobia, and foreign body sensation. Average tear film break-up time values showed statistically significant improvement after the treatment with oral azithromycin. No statistically significant improvement was observed on average values of Schirmer I test, corneal fluorescein staining score, and rose bengal staining score. The combination of multiple clinical parameters shown in this study supports the clinical efficacy of pulsed oral azithromycin therapy for the management of posterior blepharitis.
ERIC Educational Resources Information Center
Huesman, Ronald L., Jr.; Frisbie, David A.
This study investigated the effect of extended-time limits in terms of performance levels and score comparability for reading comprehension scores on the Iowa Tests of Basic Skills (ITBS). The first part of the study compared the average reading comprehension scores on the ITBS of 61 sixth-graders with learning disabilities and 397 non learning…
The utility of the KJOC score in professional baseball in the United States.
Franz, Justin O; McCulloch, Patrick C; Kneip, Chris J; Noble, Philip C; Lintner, David M
2013-09-01
The Kerlan-Jobe Orthopaedic Clinic (KJOC) Shoulder and Elbow questionnaire has been shown by previous studies to be more sensitive than other validated subjective measurement tools in the detection of upper extremity dysfunction in overhead-throwing athletes. The primary objective was to establish normative data for KJOC scores in professional baseball players in the United States. The secondary objectives were to evaluate the effect of player age, playing position, professional competition level, history of injury, history of surgery, and time point of administration on the KJOC score. Cross-sectional study; Level of evidence, 3. From 2011 to 2012, a total of 203 major league and minor league baseball players within the Houston Astros professional baseball organization completed the KJOC questionnaire. The questionnaire was administered at 3 time points: spring training 2011, end of season 2011, and spring training 2012. The KJOC scores were analyzed for significant differences based on player age, injury history, surgery history, fielding position, competition level, self-reported playing status, and time point of KJOC administration. The average KJOC score among healthy players with no history of injury was 97.1 for major league players and 96.8 for minor league players. The time point of administration did not significantly affect the final KJOC score (P = .224), and KJOC outcomes did not vary with player age (r = -0.012; P = .867). Significantly lower average KJOC scores were reported by players with a history of upper extremity injury (86.7; P < .001) and upper extremity surgery (75.4; P < .0001). The KJOC results did vary with playing position (P = .0313), with the lowest average scores being reported by pitchers (90.9) and infielders (91.3). This study establishes a quantitative baseline for the future evaluation of professional baseball players with the KJOC score. Age and time of administration had no significant effect on the outcome of the KJOC score. Missed practices or games within the previous year because of injury were the most significant demographic predictors of lower KJOC scores. The KJOC score was shown to be a sensitive measurement tool for detecting subtle changes in the upper extremity performance of the professional baseball population studied.
Belli, Hasan; Akbudak, Mahir; Ural, Cenk; Solmaz, Mustafa; Dogan, Zuhal; Konkan, Ramazan
2017-01-01
A possible relationship has been suggested between social anxiety and dissociation. Traumatic experiences, especially childhood abuse, play an important role in the aetiology of dissociation. This study assesses childhood trauma history, dissociative symptoms, and dissociative disorder comorbidity in patients with social anxiety disorder (SAD). The 94 psychotropic drug-naive patients participating in the study had to meet DSM-IV criteria for SAD. Participants were assessed using the Structured Clinical Interview for DSM-IV Dissociative Disorders (SCID-D), the Dissociation Questionnaire (DIS-Q), the Liebowitz Social Anxiety Scale (LSAS), and the Childhood Trauma Questionnaire (CTQ). Patients were divided into two groups using the DIS-Q, and the two groups were compared. The evaluation found evidence of at least one dissociative disorder in 31.91% of participating patients. The most prevalent disorders were dissociative disorder not otherwise specified (DDNOS), dissociative amnesia, and depersonalization disorders. Average scores on LSAS and fear and avoidance sub-scale averages were significantly higher among the high DIS-Q group (p < .05). In a logistic regression taking average LSAS scores as the dependent variable, the five independent variables DIS-Q, CTQ-53 total score, emotional abuse, sexual abuse, and emotional neglect were associated with average LSAS scores among patients with SAD (p < .05). It is concluded that, on detecting SAD symptoms during hospitalization, the clinician should not neglect underlying dissociative processes and traumatic experiences among these patients.
NASA Astrophysics Data System (ADS)
Fikri, P. M.; Sinaga, P.; Hasanah, L.; Solehat, D.
2018-05-01
This study aims to determine profile of students’ generated representations and creative thinking skill on problem solving in vocational school. This research is a descriptive research to get an idea of comprehend students’ generated representations and creative thinking skill on problem solving of vocational school in Bandung. Technique of collecting data is done by test method, observation, and interview. Representation is something that represents, describes or symbolizes an object or process. To evaluate the multi-representation skill used essay test with rubric of scoring was used to assess multi-depressant student skills. While creative thinking skill on problem solving used essay test which contains the components of skills in finding facts, problem finding skills, idea finding skills and solution finding skills. The results showed generated representations is still relatively low, this is proven by average student answers explanation is mathematically correct but there is no explanation verbally or graphically. While creative thinking skill on problem solving is still relatively low, this is proven by average score for skill indicator in finding the student problem is 1.52 including the non-creative category, average score for the skill indicator in finding the student idea is 1.23 including the non-creative category, and the average score of the students skill in finding this solution is 0.72 belongs to a very uncreative category.
Parents' Reactions to Finding Out That Their Children Have Average or above Average IQ Scores.
ERIC Educational Resources Information Center
Dirks, Jean; And Others
1983-01-01
Parents of 41 children who had been given an individually-administered intelligence test were contacted 19 months after testing. Parents of average IQ children were less accurate in their memory of test results. Children with above average IQ experienced extremely low frequencies of sibling rivalry, conceit or pressure. (Author/HLM)
Writing, self-reflection, and medical school performance: the Human Context of Health Care.
Stephens, Mark B; Reamy, Brian V; Anderson, Denise; Olsen, Cara; Hemmer, Paul A; Durning, Steven J; Auster, Simon
2012-09-01
Finding ways to improve communication and self-reflection skills is an important element of medical education and continuing professional development. This study examines the relationship between self-reflection and educational outcomes. We correlate performance in a preclinical course that focuses on self-reflection as it relates to contextual elements of patient care (Human Context of Health Care), with educational measures such as overall grade point average, clinical clerkship scores, and Medical College Admission Test (MCAT) scores. Student performance in Human Context of Health Care correlated with MCAT-Verbal scores, MCAT-writing sample scores, clerkship grades, and overall medical school grade point average (R = 0.3; p < 0.001). Writing and self-reflection skills are often neglected in undergraduate medical curricula. Our findings suggest that these skills are important and correlate with recognized long-term educational outcomes.
Cartier, Vanessa; Inan, Cigdem; Zingg, Walter; Delhumeau, Cecile; Walder, Bernard; Savoldelli, Georges L
2016-08-01
Multimodal educational interventions have been shown to improve short-term competency in, and knowledge of central venous catheter (CVC) insertion. To evaluate the effectiveness of simulation-based medical education training in improving short and long-term competency in, and knowledge of CVC insertion. Before and after intervention study. University Geneva Hospital, Geneva, Switzerland, between May 2008 and January 2012. Residents in anaesthesiology aware of the Seldinger technique for vascular puncture. Participants attended a half-day course on CVC insertion. Learning objectives included work organization, aseptic technique and prevention of CVC complications. CVC insertion competency was tested pretraining, posttraining and then more than 2 years after training (sustainability phase). The primary study outcome was competency as measured by a global rating scale of technical skills, a hand hygiene compliance score and a checklist compliance score. Secondary outcome was knowledge as measured by a standardised pretraining and posttraining multiple-choice questionnaire. Statistical analyses were performed using paired Student's t test or Wilcoxon signed-rank test. Thirty-seven residents were included; 18 were tested in the sustainability phase (on average 34 months after training). The average global rating of skills was 23.4 points (±SD 4.08) before training, 32.2 (±4.51) after training (P < 0.001 for comparison with pretraining scores) and 26.5 (±5.34) in the sustainability phase (P = 0.040 for comparison with pretraining scores). The average hand hygiene compliance score was 2.8 (±1.0) points before training, 5.0 (±1.04) after training (P < 0.001 for comparison with pretraining scores) and 3.7 (±1.75) in the sustainability phase (P = 0.038 for comparison with pretraining scores). The average checklist compliance was 14.9 points (±2.3) before training, 19.9 (±1.06) after training (P < 0.001 for comparison with pretraining scores) and 17.4 (±1.41) (P = 0.002 for comparison with pretraining scores). The percentage of correct answers in the multiple-choice questionnaire increased from 76.0% (±7.9) before training to 87.7% (±4.4) after training (P < 0.001). Simulation-based medical education training was effective in improving short and long-term competency in, and knowledge of CVC insertion.
Predicting Success for Actuarial Students in Undergraduate Mathematics Courses
ERIC Educational Resources Information Center
Smith, Richard Manning; Schumacher, Phyllis A.
2005-01-01
A study of undergraduate actuarial graduates found that math SAT scores, verbal SAT scores, percentile rank in high school graduating class, and percentage score on a college mathematics placement exam had some relevance to forecasting the students' grade point averages in their major. For both males and females, percentile rank in high school…
A Comparison of Item-Level and Scale-Level Multiple Imputation for Questionnaire Batteries
ERIC Educational Resources Information Center
Gottschall, Amanda C.; West, Stephen G.; Enders, Craig K.
2012-01-01
Behavioral science researchers routinely use scale scores that sum or average a set of questionnaire items to address their substantive questions. A researcher applying multiple imputation to incomplete questionnaire data can either impute the incomplete items prior to computing scale scores or impute the scale scores directly from other scale…
Lo, Eddie Y; Flanagin, Brody A; Burkhead, Wayne Z
2016-07-01
The treatment of young patients with glenohumeral arthritis has been challenging. Alternative treatment options include activity modification, arthroscopic débridement, and arthroplasty. Addressing the glenoid during arthroplasty in this population of patients continues to be a significant challenge. In this study, we evaluated the midterm outcomes of hemiarthroplasty with biologic resurfacing of the glenoid with human dermal matrix allograft. Between 2004 and 2011, 55 patients underwent hemiarthroplasty and biologic resurfacing of the glenoid with human dermal matrix allograft. The average age was 50 ± 9 years. Subjective evaluation was performed with the Western Ontario Osteoarthritis of the Shoulder Index, American Shoulder and Elbow Surgeons score, visual analog scale, and Single Assessment Numeric Evaluation. Patients returned to the clinic for clinical examination and radiographic evaluation. The average follow-up was 60 months. The average postoperative American Shoulder and Elbow Surgeons score was 76 ± 22, and the Western Ontario Osteoarthritis of the Shoulder Index score was 76% ± 22%. The visual analog scale score was 2.4 ± 2.6. The average preoperative Single Assessment Numeric Evaluation score was 33% ± 22%, which significantly improved to 72% ± 22% postoperatively. Eighty-one percent of the patients were satisfied (10/47) or highly satisfied (28/47) with their result. With radiographic evaluation, the average joint space was 1 ± 1 mm preoperatively and 2 ± 1 mm postoperatively. A total of 5 cases (9.1%) were revised to anatomic total shoulder arthroplasty with implantation of a glenoid component. Hemiarthroplasty with biologic resurfacing of the glenoid using human dermal matrix allograft can lead to successful midterm outcomes with satisfactory complication and revision rates. Both patient satisfaction and clinical outcome remain high regardless of radiographic outcome. Copyright © 2016 Journal of Shoulder and Elbow Surgery Board of Trustees. Published by Elsevier Inc. All rights reserved.
[The effectiveness of smoking cessation program in a workplace with high risk].
Coşkun Beyan, Ayşe; Varol, Yelda
2016-06-01
Initiatives for smoking cessation (SC) at workplace have become more prominent due to both health and safety risks associated with smoking. We aimed to determine 6-month successful SC rates of a group of employees who participated in a SC program as they worked in a workplace that exhibited high risk of fire and explosion. Having delivered a compulsory smoking training to the paint manufacturing department with 276 employees, we invited 147 smoker employees to participate in a SC initiative (SCI) program. The SCI program was implemented by the occupational health and safety (OHS) staff. Employees were administered a self-reported questionnaire including the age at starting smoking, number of cigarettes smoked (pack years), family members' attitudes towards smoking, reasons for smoking and harms of smoking. Nicotine addiction levels were assessed with Fagerström Nicotine Dependence Test (FNDT). 276 employees (270 male and 6 female) had an average age of 36.8 ± 8.4 years. 144 active smokers presented an average age of 38.4 ± 6.9 and smoked on average 18.5 ± 12.8 pack/year. Active smokers started smoking at the age of 19.8 ± 4.9 on average. Their average score in FNDT was 6.6 ± 1.9 points. Fifty-one (35.4%) employees participated in the SCIs. The participants in the SCP training exhibited statistically significant differences with respect to the following parameters: chronic disease (p= 0.03), pack/year (p< 0.001), age at starting smoking (p= 0.001), attempted methods to SC (p= 0.002), average score in self-reported harms of smoking (p< 0.001), average FNDT score (p< 0.001), average score of self-reported smoking addiction (p= 0.001), and whether the smoker considers smoking a means of socialization (p≤ 0.001). After six months, we observed that 12 (23%) of the participants, and 4 (4%) of the non-participants employees quitted smoking (p< 0.001). In our study, participants in the SCI exhibited higher SC rates compared to the non-participants. Further studies are required to standardize such initiatives, which improve occupational health.
Wengreen, Heidi; Munger, Ronald G; Cutler, Adele; Quach, Anna; Bowles, Austin; Corcoran, Christopher; Tschanz, Joann T; Norton, Maria C; Welsh-Bohmer, Kathleen A
2013-11-01
Healthy dietary patterns may protect against age-related cognitive decline, but results of studies have been inconsistent. We examined associations between Dietary Approaches to Stop Hypertension (DASH)- and Mediterranean-style dietary patterns and age-related cognitive change in a prospective, population-based study. Participants included 3831 men and women ≥65 y of age who were residents of Cache County, UT, in 1995. Cognitive function was assessed by using the Modified Mini-Mental State Examination (3MS) ≤4 times over 11 y. Diet-adherence scores were computed by summing across the energy-adjusted rank-order of individual food and nutrient components and categorizing participants into quintiles of the distribution of the diet accordance score. Mixed-effects repeated-measures models were used to examine 3MS scores over time across increasing quintiles of dietary accordance scores and individual food components that comprised each score. The range of rank-order DASH and Mediterranean diet scores was 1661-25,596 and 2407-26,947, respectively. Higher DASH and Mediterranean diet scores were associated with higher average 3MS scores. People in quintile 5 of DASH averaged 0.97 points higher than those in quintile 1 (P = 0.001). The corresponding difference for Mediterranean quintiles was 0.94 (P = 0.001). These differences were consistent over 11 y. Higher intakes of whole grains and nuts and legumes were also associated with higher average 3MS scores [mean quintile 5 compared with 1 differences: 1.19 (P < 0.001), 1.22 (P < 0.001), respectively]. Higher levels of accordance with both the DASH and Mediterranean dietary patterns were associated with consistently higher levels of cognitive function in elderly men and women over an 11-y period. Whole grains and nuts and legumes were positively associated with higher cognitive functions and may be core neuroprotective foods common to various healthy plant-centered diets around the globe.
Bakhiet, Salaheldin Farah Attallah; Lynn, Richard
2015-12-01
Sex differences on the Wechsler Intelligence Scale for Children-III (WISC-III) are reported for children in Bahrain and the United States. The results for the two samples were consistent in showing no significant differences in Verbal, Performance, and Full Scale IQs, higher average scores by boys on the Block design and Mazes subtests of spatial ability, and higher average scores by girls on Coding. There was also greater variability in boys than in girls.
Personality Factors in the Long Life Family Study
2013-01-01
Objectives. To evaluate personality profiles of Long Life Family Study participants relative to population norms and offspring of centenarians from the New England Centenarian Study. Method. Personality domains of agreeableness, conscientiousness, extraversion, neuroticism, and openness were assessed with the NEO Five-Factor Inventory in 4,937 participants from the Long Life Family Study (mean age 70 years). A linear mixed model of age and gender was implemented adjusting for other covariates. Results. A significant age trend was found in all five personality domains. On average, the offspring generation of long-lived families scored low in neuroticism, high in extraversion, and within average values for the other three domains. Older participants tended to score higher in neuroticism and lower in the other domains compared with younger participants, but the estimated scores generally remained within average population values. No significant differences were found between long-lived family members and their spouses. Discussion. Personality factors and more specifically low neuroticism and high extraversion may be important for achieving extreme old age. In addition, personality scores of family members were not significantly different from those of their spouses, suggesting that environmental factors may play a significant role in addition to genetic factors. PMID:23275497
12 CFR 3.41 - Operational requirements for securitization exposures.
Code of Federal Regulations, 2014 CFR
2014-01-01
... loans 30, 60, and 90 days past due; default rates; prepayment rates; loans in foreclosure; property types; occupancy; average credit score or other measures of creditworthiness; average LTV ratio; and...
12 CFR 324.41 - Operational requirements for securitization exposures.
Code of Federal Regulations, 2014 CFR
2014-01-01
... loans 30, 60, and 90 days past due; default rates; prepayment rates; loans in foreclosure; property types; occupancy; average credit score or other measures of creditworthiness; average LTV ratio; and...
Computer-Assisted Automated Scoring of Polysomnograms Using the Somnolyzer System.
Punjabi, Naresh M; Shifa, Naima; Dorffner, Georg; Patil, Susheel; Pien, Grace; Aurora, Rashmi N
2015-10-01
Manual scoring of polysomnograms is a time-consuming and tedious process. To expedite the scoring of polysomnograms, several computerized algorithms for automated scoring have been developed. The overarching goal of this study was to determine the validity of the Somnolyzer system, an automated system for scoring polysomnograms. The analysis sample comprised of 97 sleep studies. Each polysomnogram was manually scored by certified technologists from four sleep laboratories and concurrently subjected to automated scoring by the Somnolyzer system. Agreement between manual and automated scoring was examined. Sleep staging and scoring of disordered breathing events was conducted using the 2007 American Academy of Sleep Medicine criteria. Clinical sleep laboratories. A high degree of agreement was noted between manual and automated scoring of the apnea-hypopnea index (AHI). The average correlation between the manually scored AHI across the four clinical sites was 0.92 (95% confidence interval: 0.90-0.93). Similarly, the average correlation between the manual and Somnolyzer-scored AHI values was 0.93 (95% confidence interval: 0.91-0.96). Thus, interscorer correlation between the manually scored results was no different than that derived from manual and automated scoring. Substantial concordance in the arousal index, total sleep time, and sleep efficiency between manual and automated scoring was also observed. In contrast, differences were noted between manually and automated scored percentages of sleep stages N1, N2, and N3. Automated analysis of polysomnograms using the Somnolyzer system provides results that are comparable to manual scoring for commonly used metrics in sleep medicine. Although differences exist between manual versus automated scoring for specific sleep stages, the level of agreement between manual and automated scoring is not significantly different than that between any two human scorers. In light of the burden associated with manual scoring, automated scoring platforms provide a viable complement of tools in the diagnostic armamentarium of sleep medicine. © 2015 Associated Professional Sleep Societies, LLC.
Clinical competency evaluation of Brazilian chiropractic interns
Facchinato, Ana Paula A.; Benedicto, Camila C.; Mora, Aline G.; Cabral, Dayane M.C.; Fagundes, Djalma J.
2015-01-01
Objective This study compares the results of an objective structured clinical examination (OSCE) between 2 groups of students before an internship and after 6 months of clinical practice in an internship. Methods Seventy-two students participated, with 36 students in each cohort. The OSCEs were performed in the simulation laboratory before the participants' clinical practice internship and after 6 months of the internship. Students were tested in 9 stations for clinical skills and knowledge. The same procedures were repeated for both cohorts. The t test was used for unpaired parametric samples and Fisher's exact test was used for comparison of proportions. Results There was no difference in the mean final score between the 2 groups (p = .34 for test 1; p = .08 for test 2). The performance of the students in group 1 was not significantly different when performed before and after 6 months of clinical practice, but in group 2 there was a significant decrease in the average score after 6 months of clinical practice. Conclusions There was no difference in the cumulative average score for the 2 groups before and after 6 months of clinical practice in the internship. There were differences within the cohorts, however, with a significant decrease in the average score in group 2. Issues pertaining to test standardization and student motivation for test 2 may have influenced the scores. PMID:25588200
Prcic, Alden; Aganovic, Damir; Hadziosmanovic, Osman
2013-12-01
Determine correlation between complications and stage of the disease and their impact on quality of life in patients with different types of ileal urinary derivation after radical cystectomy, and upon estimation of acquired results, to suggest the most acceptable type of urinary diversion. In five year period a prospective clinical study was performed on 106 patients, to whom a radical cystectomy was performed due to bladder cancer. Patients were divided into two groups, 66 patients with ileal conduit derivation and 40 patients with orthotopic derivation, whereby in each group a comparison between reflux and anti-reflux technique of orthotopic bladder was made. All patients from both groups filled the Sickness Impact Profile score six months after the operation. All patients had CT urography or Intravenous urography performed, as well as standard laboratory, vitamin B12 blood values, in order to evaluate early (ileus or subileus, wound dehiscence, bladder fistula, rupture of orthotopic bladder, urine extravazation) and late complications (VUR, urethral stricture, ureter stenosis, metabolic acidosis, mineral dis-balance, hypovitaminosis of vitamin B12, increased resorption of bone calcium, urinary infection, kidney damage, relapse of primary disease), so as disease stage and it's impact on quality of life. From gained results we observe that each category of SIP score correlates with different rate of correlation with the type of operation, group, T, N, and R grade, except work category. Average value of SIP score rises depending on the type of operation and T stage. It is notable that there is no difference in T1 stage, no matter the type of operation. So the average value of SIP score in T1 stage for conduit was 20.3, for Abol-Enein and Ghoneim 17.25 and Hautmann 18.75 respectively. Average value of SIP score in T2 stage for conduit was 31, for Abol-Enein and Ghoneim 19.1 and Hautmann 17.8. Average value of SIP score in T3 stage for conduit was 38.03, for Abol-Enein and Ghoneim 18.75 and Hautmann 19.5. SIP score for T4 was present only in patients with conduit performed and average value od SIP score was 40.42. There is a high level of correlation of late complications and psychosocial and physical dimension with their parameters, while for an independent dimension of correlation is not significant. Early complications have insignificant correlation in all categories of SIP score. Upon analyzing quality of life and morbidity, significant advantage is given to orthotopic derivations, especially Hautmann derivation with Chimney modification, unless there are no absolute contraindications for performing this type of operation. Factors which mostly influence quality of life are cancer stage, type of derivation, late complications and patient age. SIP score, as a well validated questionnaire, are applicable in this kind of research.
Safari, Mitra; Bahadornegad, Mohammad Hosien; Yazdanpanah, Behrouz; Safari, Marjan
Prenatal care knowledge is critical for pregnant women's use of antenatal services. The aim of the study was to assess the extent of prenatal healthcare knowledge among pregnant women of the Boyer-Ahmad and Dena County of Kohgiluyeh and Boyer-Ahmad Province, Iran. A cross-sectional survey was conducted between April and June 2013. Pregnant women who came for delivery to the only available public hospital were interviewed by trained research assistants. Interview questions were designed to assess their knowledge on five broad categories of prenatal care practices of immunization, diet, supplementation, antenatal checkups and warning signs. Collected information was converted into numerical scores and average score for each individual was calculated. Independent-samples t-test, analysis of variance and multiple comparison tests were used to compare scores among groups with different demographic and socioeconomic status. A total of 400 pregnant women with 66.8% illiterate or lowly educated and an average age of 28.5 ± 6.1 years participated in the study. The average care knowledge score was 16.8 out of a maximum of 30. The highest awareness was observed on immunization (54.4%) and the lowest for prenatal checkup (20.3%).The average knowledge scores were significantly different among age groups, educational level, number of gravidity, type of occupation, place of residence and time of starting of prenatal care. There were no significant differences between women with and without obstetric complications. Not surprisingly, the level of education was the most significant factor influencing women's knowledge of parental healthcare, reinforcing the need for the improvement in literacy and expansion of health education among pregnant women using various educational methods.
Botox combined with myofascial release physical therapy as a treatment for myofascial pelvic pain
Scott, Lauren; Wyman, Allison; Mora, Nelsi; Miladinovic, Branko; Bassaly, Renee; Hoyte, Lennox
2017-01-01
Purpose To report the effects of combined onabotulinumtoxinA (Botox) injections and myofascial release physical therapy on myofascial pelvic pain (MFPP) by comparing pre- and posttreatment average pelvic pain scores, trigger points, and patient self-reported pelvic pain. Secondary outcomes were to examine posttreatment complications and determine demographic differences between patients with/without an improvement in pain. Materials and Methods This was an Institutional Review Board approved retrospective case series on women over 18 years with MFPP who received Botox and physical therapy between July 2006 and November 2014. Presence of trigger points and pelvic pain scores were determined by digital palpation of the iliococcygeus, puborectalis, obturator internus, and rectus muscles. Average pelvic pain scores (0–10) reflected an average of the scores obtained from palpation of each muscle. Self-reported improvement in pain was recorded as yes/no. Results Fifty women met the inclusion/exclusion criteria. Posttreatment, patients had lower average pelvic pain scores (3.7±4.0 vs. 6.4±1.8, p=0.005), and fewer trigger points (44% vs. 100%, p<0.001). Fifty-eight percent of patients (95% confidence interval, 44–72) noted an improvement in self-reported pain. Patients most likely to report no improvement in pain had chronic bowel disorders, while those most likely to report an improvement in pain had a history of past incontinence sling (p=0.03). Posttreatment complications included: constipation (8%), worsening urinary retention (2%), and urinary tract infection (4%). Conclusions Botox combined with soft tissue myofascial release physical therapy under anesthesia can be effective in treating women with chronic pelvic pain secondary to MFPP. PMID:28261683
Silberg, Tamar; Ahonniska-Assa, Jaana; Levav, Miriam; Eliyahu, Roni; Peleg-Pilowsky, Tamar; Brezner, Amichai; Vakil, Eli
2016-01-01
Memory deficits are a common sequelae following childhood traumatic brain injury (TBI), which often have serious implications on age-related academic skills. The current study examined verbal memory performance using the Rey Auditory Verbal Learning Test (RAVLT) in a pediatric TBI sample. Verbal memory abilities as well as the effect of age at-testing on performance were examined. A sample of 67 children following severe TBI (age average = 12.3 ± 2.74) and 67 matched controls were evaluated using the RAVLT. Age effect at assessment was examined using two age groups: above and below 12 years of age during evaluation. Differences between groups were examined via the 9 RAVLT learning trials and the 7 composite scores conducted out of them. Children following TBI recalled significantly less words than controls on all RAVLT trials and had significantly lower scores on all composite scores. However, all of these scores fell within the low average range. Further analysis revealed significantly lower than average performance among the older children (above 12 years), while scores of the younger children following TBI fell within average limits. To conclude, verbal memory deficits among children following severe TBI demonstrate an age-at-testing effect with more prominent problems occurring above 12 years at the time of evaluation. Yet, age-appropriate performance among children below 12 years of age may not accurately describe memory abilities at younger ages following TBI. It is therefore recommended that clinicians address child's age at testing and avoid using a single test as an indicator of verbal memory functioning post TBI.
Sansom, Garett; Parras, Juan; Parras, Ana; Nieto, Yudith; Arellano, Yvette; Berke, Philip; McDonald, Thomas; Shipp, Eva; Horney, Jennifer A
2017-08-01
Previous research has shown that communities with low average socioeconomic status (SES) and majority minority populations are more likely to be exposed to industrial buildings, waste facilities, and poor infrastructure compared to white communities with higher average SES. While some studies have demonstrated linkages between exposures to specific environmental contaminates within these communities and negative health outcomes, little research has analyzed the effects of environmental contaminants on the mental and physical health of these populations. A cross-sectional survey collected data from residents of Manchester, a small neighborhood in Houston, TX, that is characterized by industrial sites, unimproved infrastructure, nuisance flooding, and poor air quality. Our study (N = 109) utilized the 12 item Short Form Health Survey version 2 (SF12v2) to assess the general mental and physical health of the community. The community as a whole had reduced physical health scores compared to U.S. national averages. The time residents had lived in the neighborhood was also correlated with a reported reduction in physical health scores (r2 = 0.136; p-value <0.001). The association between time lived in the neighborhood and poorer health scores remained after adjusting for age, race, and gender (coef = -0.27, p-value <0.001). Mental health scores were within national averages and time spent living in the neighborhood did not appear to negatively impact respondent's mental health scores. These findings point to the need for more research to determine the potential for additive physical and mental health impacts in long-term residents in neighborhoods characterized by environmental justice issues.
NASA Astrophysics Data System (ADS)
Mori, Taketoshi; Ishino, Takahito; Noguchi, Hiroshi; Shimosaka, Masamichi; Sato, Tomomasa
2011-06-01
We propose a life pattern estimation method and an anomaly detection method for elderly people living alone. In our observation system for such people, we deploy some pyroelectric sensors into the house and measure the person's activities all the time in order to grasp the person's life pattern. The data are transferred successively to the operation center and displayed to the nurses in the center in a precise way. Then, the nurses decide whether the data is the anomaly or not. In the system, the people whose features in their life resemble each other are categorized as the same group. Anomalies occurred in the past are shared in the group and utilized in the anomaly detection algorithm. This algorithm is based on "anomaly score." The "anomaly score" is figured out by utilizing the activeness of the person. This activeness is approximately proportional to the frequency of the sensor response in a minute. The "anomaly score" is calculated from the difference between the activeness in the present and the past one averaged in the long term. Thus, the score is positive if the activeness in the present is higher than the average in the past, and the score is negative if the value in the present is lower than the average. If the score exceeds a certain threshold, it means that an anomaly event occurs. Moreover, we developed an activity estimation algorithm. This algorithm estimates the residents' basic activities such as uprising, outing, and so on. The estimation is shown to the nurses with the "anomaly score" of the residents. The nurses can understand the residents' health conditions by combining these two information.
[Impact of intrauterine device insertion surgery on women's mental state].
Chu, Guang-hua; Zou, Yan; Wang, Xiao-ye; Li, Su-xia; Huang, Zi-rong; Fang, Ai-hua; Tian, Ai-ping
2013-06-01
To evaluate the impact of the intrauterine device (IUD) insertion on the mental state of women. From Jan. 2009 to Jun. 2010, a multi-center clinical observational study was performed. Totally 641 women were selected in the six provinces' 18 family planning service stations and hospitals for IUD insertion surgery study. Analysis of the change of women's mental state which was evaluated by symptom checklist-90 (SCL-90) scale before and after IUD insertion surgery. Before and after IUD insertion surgery, 10 factors' scores in SCL-90 of the observed objects were between 1.1 to 1.2, total scores were 107±27 and 105±25, respectively. Before and after surgery, total average score both were 1.2, the average score of positive items both were 2.1. The difference of the above results were not statistically significance (all P>0.05). Preoperative and postoperative, the rate of positive items was 9.2%-19.6% and 7.7%-17.6%, respectively.In addition to anxiety and fear, the rate of other factors' positive items postoperative was significantly lower than those in the preoperative (all P<0.05). The incidence of the observed objects postoperative of each factor score, "deteriorated" was in the range of 4.9% to 23.0%, "improved" was in the range of 26.3%-50.1%. The incidence of total scores, "deterioration" was 28.8% (166/575), "improved" was 45.6% (262/575). The incidence of the average score of positive items, "deterioration" was 3.7% (21/575), "improved" was 52.3% (301/575). Logistic analysis showed that, in addition to unit level, there were no other significant influencing factors for women' mental state of postoperative (all P>0.05). IUD insertion surgery has no adverse effect on women's mental state.
Bi-Xian, Ni; Xiang-Zhen, Xu; Xiao-Ting, Wang; Ming-Xue, Sheng; Yang, Dai; Xiao-Lin, Jin
2017-07-24
To evaluate the effect of the prevention and control technique training of human important parasitic diseases for basic professional and technical personnel in Jiangsu Province in 2017. A workshop including theory courses and practical operations was carried out for the basic professional and technical personnel. At the end of the workshop, the effects were evaluated through the theoretical and microscopic examinations. There were 132 trainees from 13 cities, and all of them took part in the final examinations. The average score of total was 118.36. There were significant differences among different regions ( χ 2 = 13.38, P < 0.01). The pass rate of the theory test was 92.4% with the average score of 79.05. There were significant differences of theory scores among different regions ( χ 2 =14.51, P < 0.01). The theory score of Northern Jiangsu Province was significantly higher than the scores of Southern and Central Jiangsu Province ( P < 0.001, P = 0.009). The pass rate of microscopic examinations was 89.4% with the average score of 39.32. There was no significant difference of micro-scopic examination scores among different regions ( F = 2.37, P = 0.09). Among the total 7 species, the detection rate of Paragonimus westermani was the highest (75%) and the rates of Schistosoma japonicum and Fasciolopsis buski were only 51.5% and 54.5% respectively. The detection rates of eggs of Trichuris trichiura , unfertilized Ascaris lumbricoides , Clonorchis sinensis and Taenia solium were 71.2%, 65.9%, 72.7% and 72.0% respectively. The training course has promoted the capability of prevention and control of parasitic diseases for basic technical personnel. Also it provides the technical supports for parasitic disease monitoring, control and risk assessment in the next step.
Yau, Gary L; Jackman, Christopher S; Hooper, Philip L; Sheidow, Tom G
2011-02-01
To compare the anesthetic effectiveness of 3 topical agents used for intravitreal injections. Randomized, triple-armed, double-blinded, prospective, single-centered trial in patients receiving intravitreal ranibizumab for neovascular age-related macular degeneration. Patients were randomized 1:1:1 to receive 0.5% tetracaine hydrochloride drops and a 4% lidocaine pledget (n = 31), 0.5% tetracaine hydrochloride drops alone (n = 31), or 4% cocaine (+ epinephrine 1/100,000) drops alone (n = 31). Patients were asked to score their pain experience using a visual analogue scale (VAS) immediately following and 15 minutes after their injection. The average of these scores was used as the primary outcome. The physician performing the procedure separately scored his perception of the patients' pain using the Wong-Baker FACES scale. Means of the averaged VAS pain score for Groups 1, 2, and 3 were: 19 (95% confidence interval [CI] 12-26), 21 (95% CI 13-29), and 21 (95% CI 16-27) respectively. Mean Wong-Baker pain scores for Groups 1, 2, and 3 were 1.9 (95% CI 1.3-2.6), 2.1 (95% CI 1.4-2.7), and 2.3 (95% CI 1.6-3.1) respectively. There was no significant difference (P = .549) between groups for average VAS pain score. Similarly, there was no significant difference (P = .790) for the physician-perceived pain score between groups. There was no clinical difference in patient pain experience between the 3 anesthetic options tested. The addition of a 4% lidocaine pledget offered no clinical advantage in pain relief compared to 0.5% tetracaine or 4% cocaine (+ epinephrine 1/100,000) drops alone. Copyright © 2011 Elsevier Inc. All rights reserved.
Chih, An-Hsuan; Su, Peijen; Hu, Wen-Yu; Yao, Chien-An; Cheng, Shao-Yi; Lin, Yen-Chun; Chiu, Tai-Yuan
2016-01-01
Abstract The current ethical dilemmas met by healthcare professionals were never compared with those 15 years ago when the palliative care system was newly developing in Taiwan. The aim of the study was to investigate the ethical dilemmas met by palliative care physicians and nurses in 2013 and compare the results with the survey in 1998. This cross-sectional study surveyed 213 physicians and nurses recruited from 9 representative palliative care units across Taiwan in 2013. The compared survey in 1998 studied 102 physicians and nurses from the same palliative care units. All participants took a questionnaire to survey the “frequency” and “difficulty” of 20 frequently encountered ethical dilemmas, which were grouped into 4 domains by factor analysis. The “ethical dilemma” scores were calculated and then compared across 15 years by Student's t tests. A general linear model analysis was used to identify significant factors relating to a high average “ethical dilemma” score in each domain. All of the highest-ranking ethical dilemmas in 2013 were related to insufficient resources. Physicians with less clinical experience had a higher average “ethical dilemma” score in clinical management. Physicians with dissatisfaction in providing palliative care were associated a higher average “ethical dilemma” score in communication. Nurses reported higher “ethical dilemma” scores in all items of resource allocation in 2013. Further analysis confirmed that, in 2013, nurses had a higher average “ethical dilemma” score in resource allocation after adjustment for other relating factors. Palliative care nursing staff in Taiwan are more troubled by ethical dilemmas related to insufficient resources than they were 15 years ago. Training of decision making in nurses under the framework of ethical principles and community palliative care programs may improve the problems. To promote the dignity of terminal cancer patients, long-term fundraising plans are recommended for countries in which the palliative care system is in its early stages of development. PMID:26735533
Failure after reverse total shoulder arthroplasty: what is the success of component revision?
Black, Eric M; Roberts, Susanne M; Siegel, Elana; Yannopoulos, Paul; Higgins, Laurence D; Warner, Jon J P
2015-12-01
Complication rates remain high after reverse total shoulder arthroplasty (RTSA). Salvage options after implant failure have not been well defined. This study examines the role of reimplantation and revision RTSA after failed RTSA, reporting outcomes and complications of this salvage technique. Sixteen patients underwent component revision and reimplantation after a prior failed RTSA from 2004 to 2011. Indications included baseplate failure (7 patients, 43.8%), instability (6 patients, 37.5%), infection (2 patients, 12.5%), and humeral loosening (1 patient, 6.3%). The average age of the patient during revision surgery was 68.6 years. Outcomes information at follow-up was recorded, including visual analog scale score for pain, subjective shoulder value, American Shoulder and Elbow Surgeons score, and Simple Shoulder Test score, and these were compared with pre-revision values. Repeated surgeries and complications were noted. Average time to follow-up from revision was 58.9 months (minimum, 2 years; range, 24-103 months). The average postoperative visual analog scale score for pain was 1.7/10 (7.5/10 preoperatively; P < .0001), and the subjective shoulder value was 62% (17% preoperatively; P < .0001). The average postoperative American Shoulder and Elbow Surgeons score was 66.7, and the Simple Shoulder Test score was 52.6. Fourteen patients (88%) noted that they felt "better" postoperatively than before their original RTSA and would go through the procedure again if given the option. Nine patients suffered major complications (56%), and 6 of these ultimately underwent further procedures (38% of cohort). Salvage options after failure of RTSA remain limited. Component revision and reimplantation can effectively relieve pain and improve function compared with baseline values, and patient satisfaction levels are moderately high. However, complication rates and reoperation rates are significant. Copyright © 2015 Journal of Shoulder and Elbow Surgery Board of Trustees. Published by Elsevier Inc. All rights reserved.
Chih, An-Hsuan; Su, Peijen; Hu, Wen-Yu; Yao, Chien-An; Cheng, Shao-Yi; Lin, Yen-Chun; Chiu, Tai-Yuan
2016-01-01
The current ethical dilemmas met by healthcare professionals were never compared with those 15 years ago when the palliative care system was newly developing in Taiwan. The aim of the study was to investigate the ethical dilemmas met by palliative care physicians and nurses in 2013 and compare the results with the survey in 1998. This cross-sectional study surveyed 213 physicians and nurses recruited from 9 representative palliative care units across Taiwan in 2013. The compared survey in 1998 studied 102 physicians and nurses from the same palliative care units. All participants took a questionnaire to survey the "frequency" and "difficulty" of 20 frequently encountered ethical dilemmas, which were grouped into 4 domains by factor analysis. The "ethical dilemma" scores were calculated and then compared across 15 years by Student's t tests. A general linear model analysis was used to identify significant factors relating to a high average "ethical dilemma" score in each domain. All of the highest-ranking ethical dilemmas in 2013 were related to insufficient resources. Physicians with less clinical experience had a higher average "ethical dilemma" score in clinical management. Physicians with dissatisfaction in providing palliative care were associated a higher average "ethical dilemma" score in communication. Nurses reported higher "ethical dilemma" scores in all items of resource allocation in 2013. Further analysis confirmed that, in 2013, nurses had a higher average "ethical dilemma" score in resource allocation after adjustment for other relating factors. Palliative care nursing staff in Taiwan are more troubled by ethical dilemmas related to insufficient resources than they were 15 years ago. Training of decision making in nurses under the framework of ethical principles and community palliative care programs may improve the problems. To promote the dignity of terminal cancer patients, long-term fundraising plans are recommended for countries in which the palliative care system is in its early stages of development.
Retrospective outcome analyses for headaches in a pain rehabilitation interdisciplinary program.
Zheng, Yuxi; Tepper, Stewart J; Covington, Edward C; Mathews, Manu; Scheman, Judith
2014-03-01
Incapacitating chronic migraine and other severe headaches can have significant impact on peoples' lives, including family and occupational functioning. Although a number of reports have investigated the prevalence and medical treatment of chronic headache, few have reported on the efficacy of treating these disorders within a comprehensive, intensive chronic pain rehabilitation program (CPRP), instead of a headache-specific program. CPRPs provide treatment of headache by focusing not only on physical pain, but also its association with impaired mood and function. We examined the efficacy of CPRP in patients with chronic headache via a retrospective analysis of 123 patients (76.4% female), ages 21 to 85, who completed the CPRP at the Cleveland Clinic between January 2007 and December 2011, and were diagnosed using International Classification of Headache Disorders, 2nd edition and International Classification of Headache Disorders, 2nd edition revision, with migraine or headache as a major complaint. Outcome measures included: pain intensity scores present at the moment of questioning where 10 is the maximal (0-10/10), Depression Anxiety Stress Scale (DASS) scores, (measuring mood), and Pain Disability Index scores (measuring function). Repeated measures t-tests were used. Average pain score on admission was 6.4, and 3.4 upon discharge. Average function on admission was moderately impaired, and normalized on discharge. The average depression score was in the moderate range, and had normalized on discharge. The average anxiety score on admission was in the severe range and was in the mild range on discharge. Results indicate that individuals had statistically and clinically meaningful improvement in pain, mood, and function. Data suggest that an interdisciplinary CPRP approach for patients diagnosed with headache can be effective in helping to decrease pain, as well as normalize mood and function. Thus, CPRPs serve as an alternative treatment to multidisciplinary headache programs, interventional pain techniques, and primary care standard headache care. © 2013 American Headache Society.
Beliefs of Turkish female teaching staff regarding mammography scanning.
Temel, Ayla Bayik; Ardahan, Melek; Sesli, Esra
2010-01-01
To our knowledge, there has hitherto been no research to determine the beliefs of female teaching staff, who are highly educated and form a special risk group regarding breast cancer, towards mammography scanning in Turkey. Definitive research was planned to determine the beliefs of the female teaching staff working in a university. Data were collected by researchers via face-to-face interview using a sociodemographic questionnaire and " Health Belief Model ". The point average of the teaching staff in the mammography benefits sub-scale is 19.6 ± 3.87, their average item score is 3.91. The point average of the teaching staff in the mammography obstacles sub-scale is 21.17 ± 6.87, their average item score is 1.92. They agree on the benefits of the mammography, but they do not agree on the obstacles to mammography.
Patterson, Brendan M; Orvets, Nathan D; Aleem, Alexander W; Keener, Jay D; Calfee, Ryan P; Nixon, Devon C; Chamberlain, Aaron M
2018-06-01
The Patient-Reported Outcomes Measurement Information System (PROMIS) is being used to assess outcomes in many patient populations despite limited validation. The purpose of this study was to investigate the relationship between American Shoulder and Elbow Surgeons (ASES) and Simple Shoulder Test (SST) scores and PROMIS Physical Function (PF) and Upper Extremity (UE) function scores collected preoperatively in patients undergoing rotator cuff repair. This cross-sectional study analyzed 164 consecutive patients undergoing arthroscopic rotator cuff repair. Study inclusion required preoperative completion of the ASES and SST evaluations, as well as the PROMIS PF, UE, and Pain Interference computerized adaptive tests. Descriptive statistics were produced, and Pearson correlation coefficients were calculated between each of the outcome measures. Average PROMIS UE scores indicated greater impairment than PROMIS PF scores (34 vs 44). Three percent of patients reached the PROMIS UE ceiling score of 56. PROMIS PF scores demonstrated a weak correlation with ASES scores (r = 0.43, P < .001) and a moderate correlation with SST scores (r = 0.51, P < .001). PROMIS UE scores demonstrated a moderate correlation with both ASES scores (r = 0.59, P < .001) and SST scores (r = 0.62, P < .001). PROMIS Pain Interference scores demonstrated weak negative correlations with both ASES scores (r = -0.43, P < .001) and SST scores (r = -0.41, P < .001). Patients answered fewer questions on average using the PROMIS PF and UE instruments as compared with the ASES and SST instruments. PROMIS UE scores indicate greater impairment and demonstrate a stronger correlation with the legacy shoulder scores than PROMIS PF scores in patients with symptomatic rotator cuff tears. PROMIS computerized adaptive tests allow for more efficient patient-reported outcome data collection compared with traditional outcome scores. Copyright © 2018 Journal of Shoulder and Elbow Surgery Board of Trustees. Published by Elsevier Inc. All rights reserved.
The Predictive Validity of the University Student Selection Examination
ERIC Educational Resources Information Center
Karakaya, Ismail; Tavsancil, Ezel
2008-01-01
The main purpose of this study is to investigate the predictive validity of the 2003 University Student Selection Examination (OSS). For this purpose, freshman grade point average (FGPA) in higher education was predicted by raw scores, standard scores, and placement scores (YEP). This study has been conducted on a research group. In this study,…
Many Children Left Behind? Textbooks and Test Scores in Kenya. NBER Working Paper No. 13300
ERIC Educational Resources Information Center
Glewwe, Paul; Kremer, Michael; Moulin, Sylvie
2007-01-01
A randomized evaluation suggests that a program which provided official textbooks to randomly selected rural Kenyan primary schools did not increase test scores for the average student. In contrast, the previous literature suggests that textbook provision has a large impact on test scores. Disaggregating the results by students' initial academic…
Longitudinal effects of medical students' communication skills on future performance.
Dong, Ting; LaRochelle, Jeffrey S; Durning, Steven J; Saguil, Aaron; Swygert, Kimberly; Artino, Anthony R
2015-04-01
The Essential Elements of Communication (EEC) were developed from the Kalamazoo consensus statement on physician-patient communication. The Uniformed Services University of the Health Sciences (USU) has adopted a longitudinal curriculum to use the EEC both as a learning tool during standardized patient encounters and as an evaluation tool culminating with the end of preclerkship objective-structured clinical examinations (OSCE). Medical educators have recently emphasized the importance of teaching communication skills, as evidenced by the United States Medical Licensing Examination testing both the integrated clinical encounter (ICE) and communication and interpersonal skills (CIS) within the Step 2 Clinical Skills exam (CS). To determine the associations between students' EEC OSCE performance at the end of the preclerkship period with later communication skills assessment and evaluation outcomes in the context of a longitudinal curriculum spanning both undergraduate medical education and graduate medical education. Retrospective data from preclerkship (overall OSCE scores and EEC OSCE scores) and clerkship outcomes (internal medicine [IM] clinical points and average clerkship National Board of Medical Examiners [NBME] scores) were collected from 167 USU medical students from the class of 2011 and compared to individual scores on the CIS and ICE components of Step 2 CS, as well as to the communication skills component of the program directors' evaluation of trainees during their postgraduate year 1 (PGY-1) residency. In addition to bivariate Pearson correlation analysis, we conducted multiple linear regression analysis to examine the predictive power of the EEC score beyond the IM clerkship clinical points and the average NBME Subject Exams score on the outcome measures. The EEC score was a significant predictor of the CIS score and the PGY-1 communication skills score. Beyond the average NBME Subject Exams score and the IM clerkship clinical points, the EEC score explained an additional 13% of the variance in the Step 2 CIS score and an additional 6% of the variance in the PGY-1 communication skills score. In addition, the EEC score was more closely associated with the CIS score than the ICE score. The use of a standardized approach with a communication tool like the EEC can help explain future performance in communication skills independent of other education outcomes. In the context of a longitudinal curriculum, this information may better inform medical educators on learners' communication capabilities and more accurately direct future remediation efforts. Reprint & Copyright © 2015 Association of Military Surgeons of the U.S.
The Impact of Critical Thinking on Clinical Judgment During Simulation With Senior Nursing Students.
Cazzell, Mary; Anderson, Mindi
2016-01-01
The study examined the impact of critical thinking (CT) on clinical judgment (CJ) during a pediatric Objective Structured Clinical Evaluation (OSCE) with 160 pre-licensure nursing students. Educators are called to transform teaching strategies to develop CJ but confusion exists over definitions. A descriptive correlational design was used to examine demographics and Tower of Hanoi (TOH) and Health Science Reasoning Test (HSRT) scores. CJ was measured by scores on the Lasater Clinical Judgment Rubric (LCJR) from videotaped OSCEs. Participants were: 86 percent female, 42 percent Caucasian, median 23 years, with 49 percent having health care experience. Students averaged seven moves over minimum on the TOH. Average scores were: HSRT 25/38 and LCJR 31/44. Statistically significant predictors of CJ were gender, ethnicity, HSRT deduction, and analysis; 11 CT variables accounted for 17 percent of LCJR scores. Educators need to utilize/develop innovative teaching strategies addressing CJ predictors.
Influence of internship toward entrepreneurship interest for mechanical engineering students
NASA Astrophysics Data System (ADS)
Sunyoto, Nugroho, Agus; Ulum, Miftakhul
2017-03-01
This study was aimed to determine the influence of internship toward students' entrepreneurship interest. Mechanical Engineering Education students from 2013 Batch who had the internship from Engineering Faculty at Semarang State University are the subject of this study. Data was collected through questionnaire and analyzed by simple regression analysis method. The internship subject score and entrepreneurship are categorized in very good level in which the average is 87.08% and 85.61%. However, the influence of internship toward students' interest is categorized in low level in which the average score is 7.9%. Internship section shall encourage students to study entrepreneurship aspects during the internship for entrepreneurship interest improvement and the students' preparation once they graduated. Description scoring standard is needed for scoring the students although they conduct their internship at different locations and companies. The students are highly recommended to conduct an an internship at entrepreneurship-based companies.
NASA Astrophysics Data System (ADS)
Gilchrist, Pamela O.; Carpenter, Eric D.; Gray-Battle, Asia
2014-07-01
A hybrid teacher professional development, student science technology mathematics and engineering pipeline enrichment program was operated by the reporting research group for the past 3 years. Overall, the program has reached 69 students from 13 counties in North Carolina and 57 teachers from 30 counties spread over a total of five states. Quantitative analysis of oral presentations given by participants at a program event is provided. Scores from multiple raters were averaged and used as a criterion in several regression analyses. Overall it was revealed that student grade point averages, most advanced science course taken, extra quality points earned in their most advanced science course taken, and posttest scores on a pilot research design survey were significant predictors of student oral presentation scores. Rationale for findings, opportunities for future research, and implications for the iterative development of the program are discussed.
Does previous healthcare experience increase success in physician assistant training?
Hegmann, Theresa; Iverson, Katie
2016-06-01
Healthcare experience is used by many physician assistant (PA) programs to rank applicants. Despite a large healthcare literature base evaluating admissions factors, little information is available on the relationship of healthcare experience and educational outcomes. We aimed to test whether previous healthcare experience is associated with increased success during the clinical portion of the PA educational process. Hours of direct healthcare experience reported on Central Application Service for Physician Assistants applications for 124 students in the classes of 2009 through 2013 were associated with a calculated average preceptor evaluation score for each student and with average standardized-patient examination scores for a subset of students. Average student age was 28.7 years and median healthcare experience was 2,257 hours (range 390-16,400). Previous healthcare experience was not significantly correlated with preceptor evaluations or standardized-patient examination scores. This 5-year single institution pilot study did not support the hypothesis that healthcare experience is associated with improved clinical year outcomes.
Reliability and Validity of the Korean Cancer Pain Assessment Tool (KCPAT)
Kim, Jeong A; Lee, Juneyoung; Park, Jeanno; Lee, Myung Ah; Yeom, Chang Hwan; Jang, Se Kwon; Yoon, Duck Mi; Kim, Jun Suk
2005-01-01
The Korean Cancer Pain Assessment Tool (KCPAT), which was developed in 2003, consists of questions concerning the location of pain, the nature of pain, the present pain intensity, the symptoms associated with the pain, and psychosocial/spiritual pain assessments. This study was carried out to evaluate the reliability and validity of the KCPAT. A stratified, proportional-quota, clustered, systematic sampling procedure was used. The study population (903 cancer patients) was 1% of the target population (90,252 cancer patients). A total of 314 (34.8%) questionnaires were collected. The results showed that the average pain score (5 point on Likert scale) according to the cancer type and the at-present average pain score (VAS, 0-10) were correlated (r=0.56, p<0.0001), and showed moderate agreement (kappa=0.364). The mean satisfaction score was 3.8 (1-5). The average time to complete the questionnaire was 8.9 min. In conclusion, the KCPAT is a reliable and valid instrument for assessing cancer pain in Koreans. PMID:16224166
O'Toole, Robert V; Hui, Emily; Chandra, Amit; Nascone, Jason W
2014-03-01
We hypothesized that open reduction and internal fixation (ORIF) of displaced acetabular fractures in geriatric patients result in a low rate of conversion to hip arthroplasty and satisfactory hip-specific validated outcome scores at medium-term follow-up. Retrospective review. Level I trauma center. One hundred forty-seven consecutive patients who were 60 years or older who had acetabular fractures were treated at our center from 2001 through 2006. During this time period, fractures meeting operative criteria were treated with ORIF unless medical conditions warranted nonoperative treatment. Twenty-nine patients were lost to follow-up, 46 were deceased, and 11 declined to participate, leaving 61 potential patients for inclusion, 46 of whom were treated with ORIF (average follow-up, 4.4 years; range, 1.1-8.0 years). Standardized telephone interviews included hip-specific questions and validated outcome measures. Rates of conversion to hip arthroplasty and hip-specific validated outcome scores. Among 46 patients treated with ORIF (15 others were treated nonoperatively or with percutaneous screw fixation), 28% underwent hip arthroplasty an average 2.5 years after injury (range, 0.4-5.5 years) and had an average Western Ontario and McMaster Universities Index of Osteoarthritis score of 17 (range, 0-56; n = 38). This score is similar to or better than the typical scores after elective arthroplasty for arthritis and much better than the scores for patients with established arthritis (P < 0.05). The average SF-8 Health Survey physical component score was 46.1 (range, 31-62), similar to US population norms for the geriatric age group (P > 0.20). Few data exist regarding the treatment outcomes for geriatric acetabular fractures. It is difficult for clinicians to decide among ORIF, percutaneous fixation, acute arthroplasty, and nonoperative treatment. Our protocol of mostly ORIF showed a high 1-year mortality rate of 25% and a rate of conversion to arthroplasty after ORIF of 28%. Therapeutic Level III. See Instructions for Authors for a complete description of levels of evidence.
Imamura, Kazuhiro; Matumoto, Shinjirou; Mabuchi, Naoki; Kobayashi, Yasushi; Okayasu, Naoki; Watanabe, Kenichi
2009-06-01
We compared the relationship between regional cerebral blood flow (rCBF) of the olfactory area and the cognitive function and anosmia in patient with Parkinson disease (PD) and in those with Alzheimer disease (AD). UPDRS III, MMSE, HDS-R, CDR, Beck Depression Inventory (BDI) were employed in this study. The subjects included 56 PD patients (average age 71.4+/-9.69 years), 23 AD patients (average age 73.3+/-7.12 years), 12 patients with mild cognitive impairment (MCI) (average age 72.5+/-6.89 years), and 9 age-matched controls (NC) (average age 73.8+/-6.61 years). Next we intravenously injected 1 ampule of thiamine propyldisulphide (Alinamin) and confirmed anosmia. In addition, we performed 123I-IMP SPECT (SEE methods) and satistically determined rCBF of the olfactory area based on the basis of the Z scores of the interest area. Anosima was detected in approximately 40% of the PD and AD patients. The HDS-R and MMSE scores were significantly higher in patients with anosima than in those without anosima; the CDR scores were significantly higher in the former than in the latter. Further, the incidence of anosima in PD patients and AD patients with MCI increased with an increase in the CDR scores. In order to determine the rCBF of the olfactory area of the PD and AD patients. As to rCBF of the olfactory area, we examined left and right Z scores of hippocampus, parahippocampus, amygdala, and uncus at Talairach level 3 and the scores of the Brodmann area 28, 34, 35, and 36 at Talairach level 5. In patients with anosmia, the Z scores were significantly high in cases with anosmia in all areas except the right Brodmann area 34 in PD patients and the right Brodmann area 28 and bilateral the Brodmann area 34 of both sides in AD patients. Some parts of the olfactory area are closely related to cognitive function, and it appeares that a reduced rCBF in the olfactory areas may lead to a functional decline in these regions which may cause anosmia and cognitive decline in PD and AD patients.
Fang, Te-Yung; Wang, Pa-Chun; Liu, Chih-Hsien; Su, Mu-Chun; Yeh, Shih-Ching
2014-02-01
Virtual reality simulation training may improve knowledge of anatomy and surgical skills. We evaluated a 3-dimensional, haptic, virtual reality temporal bone simulator for dissection training. The subjects were 7 otolaryngology residents (3 training sessions each) and 7 medical students (1 training session each). The virtual reality temporal bone simulation station included a computer with software that was linked to a force-feedback hand stylus, and the system recorded performance and collisions with vital anatomic structures. Subjects performed virtual reality dissections and completed questionnaires after the training sessions. Residents and students had favorable responses to most questions of the technology acceptance model (TAM) questionnaire. The average TAM scores were above neutral for residents and medical students in all domains, and the average TAM score for residents was significantly higher for the usefulness domain and lower for the playful domain than students. The average satisfaction questionnaire for residents showed that residents had greater overall satisfaction with cadaver temporal bone dissection training than training with the virtual reality simulator or plastic temporal bone. For medical students, the average comprehension score was significantly increased from before to after training for all anatomic structures. Medical students had significantly more collisions with the dura than residents. The residents had similar mean performance scores after the first and third training sessions for all dissection procedures. The virtual reality temporal bone simulator provided satisfactory training for otolaryngology residents and medical students. Copyright © 2013. Published by Elsevier Ireland Ltd.
Chang, Kao-Ping; Lai, Chung-Sheng; Hsieh, Tung-Ying; Wu, Yi-Chia; Chang, Chih-Hau
2012-07-13
This study describes 2-year impact on quality of life (QOL) in relation to the anatomical discrepancy among T4a oral cancer patients after free flap reconstruction in Taiwan. Thirty-two patients who underwent tumor ablation with simultaneous microvascular free flap transfer at 2-year follow-up were recruited. They were divided into six subgroups, according to the resected area, consisting of: (1) buccal/retromolar trigone; (2) cheek; (3) commissure; (4) lip; (5) mandible; and (6) tongue. Functional disturbances and daily activity were analyzed using the Version-1 UW QOL Questionnaire with one more specific category: 'Drooling'. Kruskal-Wallis rank sums analysis was used to test differences in average QOL scores between these subgroups. Post-hoc analysis was applied to assess influence of dominant categories between subgroups. The category 'Pain' revealed the highest average score and reached significant statistical difference (P = 0.019) among all the categories, however, the category 'Employment' averaged the lowest score. Regarding 'Pain', there existed a statistical significance (P = 0.0032) between the commissure- and cheek-involved groups, which described the former showed poorer pain quality of life. The commissure-involved group had the lowest average score, which might imply the worst QOL in our study, especially for the categories 'Pain' and 'Drooling'. This present study of T4a patients was the first carried out in Taiwan implementing the QOL questionnaire, and its results may serve for future reference.
The CERAD Neuropsychologic Battery Total Score and the progression of Alzheimer disease.
Rossetti, Heidi C; Munro Cullum, C; Hynan, Linda S; Lacritz, Laura H
2010-01-01
To establish the Consortium to Establish a Registry for Alzheimer's Disease (CERAD) neuropsychologic battery as a valid measure of cognitive progression in Alzheimer disease (AD) by deriving annualized CERAD Total Change Scores and corresponding confidence intervals in AD and controls from which to define clinically meaningful change. Subjects included 383 normal control (NC) and 655 AD subjects with serial data from the CERAD registry database. Annualized CERAD Total Change Scores were derived and Reliable Change Indexes (RCIs) calculated to establish statistically reliable change values. CERAD Change Scores were compared with annualized change scores from the Mini-Mental State Examination (MMSE), Clinical Dementia Rating Scale (CDR) Sum of Boxes, and Blessed Dementia Rating Scale (BDRS). For the CERAD Total Score, the AD sample showed significantly greater decline than the NC sample over the 4-year interval, with AD subjects declining an average of 22.2 points compared with the NCs' improving an average 2.8 points from baseline to last visit [Group x Time interaction [F(4,1031)=246.08, P<0.001)]. By Visit 3, the majority of AD subjects (65.2%) showed a degree of cognitive decline that fell outside the RCI. CERAD Change Scores significantly correlated (P<0.001) with MMSE (r=-0.66), CDR (r=-0.42), and BDRS (r=-0.38) change scores. Results support the utility of the CERAD Total Score as a measure of AD progression and provide comparative data for annualized change in CERAD Total Score and other summary measures.
Glennen, Sharon
2015-01-01
This study aimed to determine the relative strengths and weaknesses in language and verbal short-term memory abilities of school-age children who were adopted from Eastern Europe. Children adopted between 1;0 and 4;11 (years;months) of age were assessed with the Clinical Evaluation of Language Fundamentals-Preschool, Second Edition (CELF-P2) and the Clinical Evaluation of Language Fundamentals, Fourth Edition (CELF-4) at age 5 and ages 6-7. Language composites and subtests were compared across time. All CELF-P2 and CELF-4 mean scores fell in the average range. Receptive composites were 102.74 and 103.86, and expressive composites were 100.58 and 98.42, at age 5 and ages 6-7, respectively. Age of adoption did not correlate to test scores. At ages 6-7, receptive language, sentence formulation, and vocabulary were areas of strength, with subtest scores significantly better than test norms. Verbal short-term memory and expressive grammar subtest scores were within the average range but significantly worse than test norms. A high percentage of children scored 1 standard deviation below the mean on these 2 subtests (27.3%-34.1%). Eastern European adoptees had average scores on a variety of language tests. Vocabulary was a relative strength; enriching the environment substantially improved this language area. Verbal short-term memory and expressive grammar were relative weaknesses. Children learning a language later in life may have difficulty with verbal short-term memory, which leads to weaknesses in expressive syntax and grammar.
Nursing workload in public and private intensive care units
Nogueira, Lilia de Souza; Koike, Karina Mitie; Sardinha, Débora Souza; Padilha, Katia Grillo; de Sousa, Regina Marcia Cardoso
2013-01-01
Objective This study sought to compare patients at public and private intensive care units according to the nursing workload and interventions provided. Methods This retrospective, comparative cohort study included 600 patients admitted to 4 intensive care units in São Paulo. The nursing workload and interventions were assessed using the Nursing Activities Score during the first and last 24 hours of the patient's stay at the intensive care unit. Pearson's chi-square test, Fisher's exact test, the Mann-Whitney test, and Student's t test were used to compare the patient groups. Results The average Nursing Activities Score upon admission to the intensive care unit was 61.9, with a score of 52.8 upon discharge. Significant differences were found among the patients at public and private intensive care units relative to the average Nursing Activities Score upon admission, as well as for 12 out of 23 nursing interventions performed during the first 24 hours of stay at the intensive care units. The patients at the public intensive care units exhibited a higher average score and overall more frequent nursing interventions, with the exception of those involved in the "care of drains", "mobilization and positioning", and "intravenous hyperalimentation". The groups also differed with regard to the evolution of the Nursing Activities Score among the total case series as well as the groups of survivors from the time of admission to discharge from the intensive care unit. Conclusion Patients admitted to public and private intensive care units exhibit differences in their nursing care demands, which may help managers with nursing manpower planning. PMID:24213086
Katznelson, Jessica H; Wang, Jiangxia; Stevens, Martha W; Mills, William A
2018-01-01
Critical access hospitals (CAH) see few pediatric patients. Many of these hospitals do not have access to physicians with pediatric training. We sought to evaluate the impact of an in situ pediatric simulation program in the CAH emergency department setting on care team performance during resuscitation scenarios. Five CAHs conducted 6 high-fidelity pediatric simulations over a 12-month period. Team performance was evaluated using a validated 35-item checklist representing commonly expected resuscitation team interventions. Checklists were scored by assigning zero point for "yes" and 1 point for "no". A lower final score meant more items on the list had been completed. The Kruskal-Wallis rank test was used to assess for differences in average scores among institutions. A linear mixed effects model with a random institution intercept was used to examine trends in average scores over time. P < 0.05 was considered significant. The Kruskal-Wallis rank test showed no difference in average scores among institutions. (P = 0.90). Checklist scores showed a significant downward trend over time, with a scenario-to-scenario decrease of 0.022 (P < 0.01). One hundred percent of providers surveyed in the last month stated they would benefit from ongoing scenarios. Regularly scheduled pediatric simulations in the CAH emergency department setting improved team performance over time on expected resuscitation tasks. The program was accepted by providers. Implementation of simulation-based training programs can help address concerns regarding pediatric preparedness in the CAH setting. A future project will look at the impact of the program on patient care and safety.
Provencher, Matthew T; Frank, Rachel M; Golijanin, Petar; Gross, Daniel; Cole, Brian J; Verma, Nikhil N; Romeo, Anthony A
2017-05-01
To assess the clinical and radiographic outcomes of patients with recurrent anterior shoulder instability treated with fresh distal tibia allograft (DTA) glenoid reconstruction. Consecutive patients with a minimum 15% anterior glenoid bone loss associated with recurrent anterior instability who underwent stabilization with DTA glenoid reconstruction were retrospectively reviewed. Patients were evaluated with the American Shoulder and Elbow Society score, Western Ontario shoulder instability index, and single numerical assessment evaluation score at a minimum 2 years after surgery. All patients also underwent postoperative imaging evaluation with computed tomography where graft incorporation and allograft angle were measured. Statistical analysis was performed with paired t-tests, with P < .05 considered significant. A total of 27 patients (100% male) with an average age of 31 ± 5 years and an average follow-up of 45 months (range, 30-66) were included. There were significant improvements in preoperative to postoperative American Shoulder and Elbow Society score (63-91, P < .01), Western Ontario shoulder instability index (46% to 11% of normal, P < .01), and single numerical assessment evaluation score (50-90.5, P < .01) outcomes. Analysis of computed tomography data at an average 1.4 years postoperatively (available for 25 patients) showed an allograft healing rate of 89% (range, 80% to 100%), average allograft angle of 14.9° (range, 6.6° to 29.3°), and average allograft lysis of 3% (range, 0% to 25%). Grafts with lesser allograft angles (<15°) were better opposed to the anterior glenoid, showing superior healing and graft incorporation. There were no cases of recurrent instability. At an average follow-up of 45 months, fresh DTA reconstruction for recurrent anterior shoulder instability results in a clinically stable joint with excellent clinical outcomes and minimal graft resorption. Optimal allograft placement resulted in superior bony incorporation with the native glenoid. Level IV, therapeutic case series. Copyright © 2016 Arthroscopy Association of North America. Published by Elsevier Inc. All rights reserved.
Choi, Jong Woo; Lee, Min Young; Oh, Tae Suk
2013-11-01
The oropharynx has a variety of functions, such as mastication, deglutition, articulation, taste, and airway protection. Because of its many roles, recent goals in head and neck reconstruction have focused on anatomic and functional reconstructions to minimize functional deficits. Since chemoradiation has earned a good reputation in the management of head and neck cancer, the manifestation of oropharyngeal defects has changed. Although we could not control the anatomic defects that were known to be related to the oropharyngeal functions, we hypothesized that optimizing the flap designs would be helpful for minimizing the functional deficits.Two hundred fifty cases of the head and neck reconstruction using free flaps were carried out between March 2006 and December 2010, where modified flap designs were applied. Among these, 37 tongue and 15 tonsillar reconstructions were analyzed for functional outcomes. The patients were of Asian ethnic background, and the average age was 52 years, including 38 males and 17 females. The average follow-up period was 20.5 months. Based on previous studies, the flap designs were categorized into type I, unilobe; type II, bilobe; type III, trilobe; type IV, quadrilobe; type V, additional lobe for lateral and posterior pharyngeal wall; and type VI, additional lobe for tongue base. The functional outcomes of both tongue and tonsillar reconstructions were investigated.To quantify the outcome in terms of swallowing and pronunciation, we analyzed the patients' function based on the 7-scale parameter. In terms of swallowing, the tongue reconstruction group scored 5.70 on average, whereas the tonsillar reconstruction group showed an average score of 4.53. With regard to speech intelligibility, the tongue reconstruction group revealed an average score of 5.67, whereas the tonsillar reconstruction group scored 5.46 on average.Our findings indicate that specification of the flap designs is helpful for minimizing the functional deficits in head and neck reconstructions.
GMAT Scores of Undergraduate Economics Majors
ERIC Educational Resources Information Center
Nelson, Paul A.; Monson, Terry D.
2008-01-01
The average score of economics majors on the Graduate Management Admission Test (GMAT) exceeds those of nearly all humanities and arts, social sciences, and business undergraduate majors but not those of most science, engineering, and mathematics majors. (Contains 1 table.)
2012-01-01
Background Although knowledge on single health-related behaviors and their association with health parameters is available, research on multiple health-related behaviors is needed to understand the interactions among these behaviors. The aims of the study were (a) to identify typical health-related behavior patterns in German adolescents focusing on physical activity, media use and dietary behavior; (b) to describe the socio-demographic correlates of the identified clusters and (c) to study their association with overweight. Methods Within the framework of the German Health Interview and Examination Survey for Children and Adolescents (KiGGS) and the “Motorik-Modul” (MoMo), 1,643 German adolescents (11–17 years) completed a questionnaire assessing the amount and type of weekly physical activity in sports clubs and during leisure time, weekly use of television, computer and console games and the frequency and amount of food consumption. From this data the three indices ‘physical activity’, ‘media use’ and ‘healthy nutrition’ were derived and included in a cluster analysis conducted with Ward’s Method and K-means analysis. Chi-square tests were performed to identify socio-demographic correlates of the clusters as well as their association with overweight. Results Four stable clusters representing typical health-related behavior patterns were identified: Cluster 1 (16.2%)—high scores in physical activity index and average scores in media use index and healthy nutrition index; cluster 2 (34.6%)—high healthy nutrition score and below average scores in the other two indices; cluster 3 (18.4%)—low physical activity score, low healthy nutrition score and very high media use score; cluster 4 (30.5%)—below average scores on all three indices. Boys were overrepresented in the clusters 1 and 3, and the relative number of adolescents with low socio-economic status as well as overweight was significantly higher than average in cluster 3. Conclusions Meaningful and stable clusters of health-related behavior were identified. These results confirm findings of another youth study hence supporting the assumption that these clusters represent typical behavior patterns of adolescents. These results are particularly relevant for the characterization of target groups for primary prevention of lifestyle diseases. PMID:23273134
Albert, Devon L; Beeman, Stephanie M; Kemper, Andrew R
2018-02-28
The objective of this research was to compare the occupant kinematics of the Hybrid III (HIII), THOR-M, and postmortem human surrogates (PMHS) during full-scale frontal sled tests under 3 safety restraint conditions: knee bolster (KB), knee bolster and steering wheel airbag (KB/SWAB), and knee bolster airbag and steering wheel airbag (KBAB/SWAB). A total of 20 frontal sled tests were performed with at least 2 tests performed per restraint condition per surrogate. The tests were designed to match the 2012 Toyota Camry New Car Assessment Program (NCAP) full-scale crash test. Rigid polyurethane foam surrogates with compressive strength ratings of 65 and 19 psi were used to simulate the KB and KBAB, respectively. The excursions of the head, shoulders, hips, knees, and ankles were collected using motion capture. Linear acceleration and angular velocity data were also collected from the head, thorax, and pelvis of each surrogate. Time histories were compared between surrogates and restraint conditions using ISO/TS 18571. All surrogates showed some degree of sensitivity to changes in restraint condition. For example, the use of a KBAB decreased the pelvis accelerations and the forward excursions of the knees and hips for all surrogates. However, these trends were not observed for the thorax, shoulders, and head, which showed more sensitivity to the presence of a SWAB. The average scores computed using ISO/TS 18571 for the HIII/PMHS and THOR-M/PMHS comparisons were 0.527 and 0.518, respectively. The HIII had slightly higher scores than the THOR-M for the excursions (HIII average = 0.574; THOR average = 0.520). However, the THOR-M had slightly higher scores for the accelerations and angular rates (HIII average = 0.471; THOR average = 0.516). The data from the current study showed that both KBABs and SWABs affected the kinematics of all surrogates during frontal sled tests. The results of the objective rating analysis indicated that the HIII and THOR-M had comparable overall biofidelity scores. The THOR-M slightly outperformed the HIII for the acceleration and angular velocity data. However, the HIII scored slightly better than the THOR-M for the excursion data. The most notable difference in biofidelity was for the knee excursions, where the HIII had a much higher average ISO score. Only the biofidelity of the HIII and THOR-M with regard to occupant kinematics was evaluated in this study; therefore, future work will evaluate the biofidelity of the ATDs in terms of lower extremity loading, thoracic response, and neck loading.
Ouyang, Wenli; Cuddy, Monica M; Swanson, David B
2015-09-01
Prior to graduation, US medical students are required to complete clinical clerkship rotations, most commonly in the specialty areas of family medicine, internal medicine, obstetrics and gynecology (ob/gyn), pediatrics, psychiatry, and surgery. Within a school, the sequence in which students complete these clerkships varies. In addition, the length of these rotations varies, both within a school for different clerkships and between schools for the same clerkship. The present study investigated the effects of clerkship sequence and length on performance on the National Board of Medical Examiner's subject examination in internal medicine. The study sample included 16,091 students from 67 US Liaison Committee on Medical Education (LCME)-accredited medical schools who graduated in 2012 or 2013. Student-level measures included first-attempt internal medicine subject examination scores, first-attempt USMLE Step 1 scores, and five dichotomous variables capturing whether or not students completed rotations in family medicine, ob/gyn, pediatrics, psychiatry, and surgery prior to taking the internal medicine rotation. School-level measures included clerkship length and average Step 1 score. Multilevel models with students nested in schools were estimated with internal medicine subject examination scores as the dependent measure. Step 1 scores and the five dichotomous variables were treated as student-level predictors. Internal medicine clerkship length and average Step 1 score were used to predict school-to-school variation in average internal medicine subject examination scores. Completion of rotations in surgery, pediatrics and family medicine prior to taking the internal medicine examination significantly improved scores, with the largest benefit observed for surgery (coefficient = 1.58 points; p value < 0.01); completion of rotations in ob/gyn and psychiatry were unrelated to internal medicine subject examination performance. At the school level, longer internal medicine clerkships were associated with higher scores on the internal medicine examination (coefficient = 0.23 points/week; p value < 0.01). The order in which students complete clinical clerkships and the length of the internal medicine clerkship are associated with their internal medicine subject examination scores. Findings may have implications for curriculum re-design.
Non-localization and localization ROC analyses using clinically based scoring
NASA Astrophysics Data System (ADS)
Paquerault, Sophie; Samuelson, Frank W.; Myers, Kyle J.; Smith, Robert C.
2009-02-01
We are investigating the potential for differences in study conclusions when assessing the estimated impact of a computer-aided detection (CAD) system on readers' performance. The data utilized in this investigation were derived from a multi-reader multi-case observer study involving one hundred mammographic background images to which fixed-size and fixed-intensity Gaussian signals were added, generating a low- and high-intensity signal sets. The study setting allowed CAD assessment in two situations: when CAD sensitivity was 1) superior or 2) lower than the average reader. Seven readers were asked to review each set in the unaided and CAD-aided reading modes, mark and rate their findings. Using this data, we studied the effect on study conclusion of three clinically-based receiver operating characteristic (ROC) scoring definitions. These scoring definitions included both location-specific and non-location-specific rules. The results showed agreement in the estimated impact of CAD on the overall reader performance. In the study setting where CAD sensitivity is superior to the average reader, the mean difference in AUC between the CAD-aided read and unaided read was 0.049 (95%CIs: -0.027; 0.130) for the image scoring definition that is based on non-location-specific rules, and 0.104 (95%CIs: 0.036; 0.174) and 0.090 (95%CIs: 0.031; 0.155) for image scoring definitions that are based on location-specific rules. The increases in AUC were statistically significant for the location-specific scoring definitions. It was further observed that the variance on these estimates was reduced when using the location-specific scoring definitions compared to that using a non-location-specific scoring definition. In the study setting where CAD sensitivity is equivalent or lower than the average reader, the mean differences in AUC are slightly above 0.01 for all image scoring definitions. These increases in AUC were not statistical significant for any of the image scoring definitions. The results on the variance analysis differed from those observed in the other study setting. This investigation furthers our understanding of the relationships between non-localization-specific and localization-specific ROC assessment methodologies and their relevance to clinical practice.
SU-E-T-192: FMEA Severity Scores - Do We Really Know?
DOE Office of Scientific and Technical Information (OSTI.GOV)
Tonigan, J; Johnson, J; Kry, S
2014-06-01
Purpose: Failure modes and effects analysis (FMEA) is a subjective risk mitigation technique that has not been applied to physics-specific quality management practices. There is a need for quantitative FMEA data as called for in the literature. This work focuses specifically on quantifying FMEA severity scores for physics components of IMRT delivery and comparing to subjective scores. Methods: Eleven physical failure modes (FMs) for head and neck IMRT dose calculation and delivery are examined near commonly accepted tolerance criteria levels. Phantom treatment planning studies and dosimetry measurements (requiring decommissioning in several cases) are performed to determine the magnitude of dosemore » delivery errors for the FMs (i.e., severity of the FM). Resultant quantitative severity scores are compared to FMEA scores obtained through an international survey and focus group studies. Results: Physical measurements for six FMs have resulted in significant PTV dose errors up to 4.3% as well as close to 1 mm significant distance-to-agreement error between PTV and OAR. Of the 129 survey responses, the vast majority of the responders used Varian machines with Pinnacle and Eclipse planning systems. The average years of experience was 17, yet familiarity with FMEA less than expected. Survey reports perception of dose delivery error magnitude varies widely, in some cases 50% difference in dose delivery error expected amongst respondents. Substantial variance is also seen for all FMs in occurrence, detectability, and severity scores assigned with average variance values of 5.5, 4.6, and 2.2, respectively. Survey shows for MLC positional FM(2mm) average of 7.6% dose error expected (range 0–50%) compared to 2% error seen in measurement. Analysis of ranking in survey, treatment planning studies, and quantitative value comparison will be presented. Conclusion: Resultant quantitative severity scores will expand the utility of FMEA for radiotherapy and verify accuracy of FMEA results compared to highly variable subjective scores.« less
DOE Office of Scientific and Technical Information (OSTI.GOV)
Kishan, Amar U.; Wang, Pin-Chieh; Sharif, Jamal
Purpose: To assess the magnitude and predictors of patient-reported fatigue among breast cancer patients receiving radiation therapy (RT). Methods and Materials: Patients receiving breast RT completed a survey querying fatigue at each weekly on-treatment visit. Patient-reported fatigue severity and interference was assessed on an ordinal scale of 0 to 4, using a validated scoring system. Baseline anxiety and depression scores were also obtained. The kinetics of mean fatigue scores per week and the maximum fatigue scores over the course of the entire treatment were assessed, and clinical predictors were identified by univariate and multivariate regression. Results: The average fatigue severitymore » and interference scores were 0.6 and 0.46. The average fatigue scores increased to an equivalent extent from week to week, with expected increases of 0.99 in fatigue severity and 0.85 in interference over 7 weeks. Patients treated with hypofractionated RT (HF-RT) versus conventionally fractionated RT (CF-RT) had significantly fewer maximum fatigue severity or interference scores that were >2 (ie, severe or very severe; 29% vs 10% for severity, and 26% vs 8% for interference, P<.01). Age ≤45 years, presence of psychiatric/pain-related comorbidities, and baseline sadness and anxiety severity were predictive of average and maximum fatigue scores (P<.05), but variables related to treatment intensity (eg, mastectomy vs lumpectomy, chemotherapy use, radiation target volumes) and other host factors (working, children, marital status, proximity to RT facility) were not. Conclusion: Patient-reported fatigue modestly increases over RT courses, with less maximum fatigue reported with HF-RT. Younger age and baseline sadness, anxiety, and psychiatric/pain-related comorbidities are powerful predictors of fatigue, whereas other factors, such as treatment intensity, are not. Future studies will investigate interventions for patients at high risk for fatigue.« less
Quality assessment of persian mental disorders websites using the webmedqual scale.
Shahrzadi, Leila; Mojiri, Shahin; Janatian, Sima; Taheri, Behjat; Ashrafi-Rizi, Hasan; Shahrzadi, Zeinab; Zahedi, Razieh
2014-06-01
Nowadays, anyone with any level of Internet knowledge can act as producer and distributor of information. It differs from most traditional media of information transmission, lack of information control and lack of quality management to contents. This leads to quality of health information on the internet is doubtful. The object of this study is guidance patients to select valid mental disorders and determine the quality of Persian mental disorders websites. The sample of this study comprised 29 Persian mental disorders websites that were chosen by searching the Google, Yahoo and AltaVista search engines for the Persian equivalents of the three concepts "depression," "anxiety," and "obsession". website was created by individuals or organizations. Data collection was performed with the WebMedQual checklist. Websites was assessed based on indicators as content, authority of source, design, accessibility and availability, links, user support, and confidentiality and privacy (Maximum score for any website was 83, mean score 41.5 and minimum score was 0). Collected data analyzed by one sample T- test in SPSS 20. Findings presented by Mean score and optimal score. Based on the WebMedQual scale the mean score of Persian mental disorders websites in sex constructs including "content" (7.02±2.10), "authority of source" (4.71±1.96),"accessibility and availability" (2.19±0.47), "links" (1.45±0.97), "user support" (4.28±1.33), and"confidentiality and privacy" (2.81±2.81) are poor and below average, but the score for the "design" (9.17± 1.59) is above average. The best website of mental disorders was that of the "IranianPsychological Association". According to the results, only one website obtained the average score, so the quality of Persian mental disorders websites is low. Therefore, it is essential for users to criticize websites' content and not trust them before evaluating them. It is better to use the ranked list websites or search on the internet by help information experts.
Joseph, Julie A; Terry, Chris M; Waller, Eva J; Bortsov, Andrey V; Zvara, David A; Mayer, David C; Martinelli, Susan M
2014-01-01
Anesthesiology resident physicians across the United States complete an annual in-training examination (ITE). The ITE evaluates resident knowledge and provides personalized feedback to guide future study in low scoring sections(1). Performance on the ITE correlates with outcomes on the American Board of Anesthesiology (ABA) written board examination(2). Over the last several years, declining ITE scores were observed at the University of North Carolina (UNC). In response to this decline, our department reprioritized the ITE by instituting an academic improvement policy (AIP). The AIP employed both reward for satisfactory achievement and consequence for under-performance to elevate the ITE as a "high stakes" examination. Our hypothesis was that implementation of this AIP would improve ITE scores. ITE scores were compiled from 150 residents in the Department of Anesthesiology at UNC for graduating classes from 2004-2015. Data is presented as the number of residents scoring below the 20th percentile when compared to the national distribution before and after the AIP. In addition, average USMLE Step 1 three-digit scores for each graduating class were compared to average ITE percentile scores of the corresponding graduating class (USMLE does not provide percentile scores). Between 2009 and 2013, the number of residents who scored below the 20th percentile on the ITE increased steadily to a peak of 10 in 2011. After implementation of the AIP in July 2011, there was an 80% decrease in those scoring below the 20th percentile, from 10 to 2 residents (p<0.05). Anesthesiology resident ITE scores improved after implementation of an academic improvement policy.
Management of symphysis pubis dysfunction during pregnancy using exercise and pelvic support belts.
Depledge, Jill; McNair, Peter J; Keal-Smith, Cheryl; Williams, Maynard
2005-12-01
Symphysis pubis pain is a significant problem for some pregnant women. The purpose of this study was to investigate the effects of exercise, advice, and pelvic support belts on the management of symphysis pubis dysfunction during pregnancy. Ninety pregnant women with symphysis pubis dysfunction were randomly assigned to 3 treatment groups. A randomized masked prospective experimental clinical trial was conducted. Specific muscle strengthening exercises and advice concerning appropriate methods for performing activities of daily living were given to the 3 groups, and 2 of the groups were given either a rigid pelvic support belt or a nonrigid pelvic support belt. The dependent variables, which were measured before and after the intervention, were a Roland-Morris Questionnaire score, a Patient-Specific Functional Scale score, and a pain score (101-point numerical rating score). After the intervention, there was a significant reduction in the Roland-Morris Questionnaire score, the Patient-Specific Functional Scale score, and the average and worst pain scores in all groups. With the exception of average pain, there were no significant differences between groups for the other measures. The findings indicate that the use of either a rigid or a nonrigid pelvic support belt did not add to the effects provided by exercise and advice.
The Role of Test Scores in Explaining Race and Gender Differences in Wages
ERIC Educational Resources Information Center
Blackburn, McKinley L.
2004-01-01
Previous research has suggested that skills reflected in test-score performance on tests such as the Armed Forces Qualification Test (AFQT) can account for some of the racial differences in average wages. I use a more complete set of test scores available with the National Longitudinal Survey of Youth 1979 Cohort to reconsider this evidence, and…
Investigating the Source of the Gender Gap in Introductory Physics
NASA Astrophysics Data System (ADS)
Kost, Lauren E.; Pollock, Steven J.; Finkelstein, Noah D.
2007-11-01
Our previous research showed that despite the use of interactive engagement (IE) techniques at our institution, the difference in performance between men and women on a conceptual learning survey persisted from pre to posttest. This paper reports on a three-part follow-up study that investigates what factors contribute to the gender gap. First, we analyze student grades in different components of the course and find that men and women's course grades are not significantly different (p>0.1), but men outscore women on exams and women outscore men on homework and participation. Second, we compare average posttest scores of men and women who score similarly on the pretest and find that there are no significant differences between men and women's average posttest scores. Finally, we analyze other factors in addition to the pretest score that could influence the posttest score and find that gender does not account for a meaningful portion of the variation in posttest scores when a measure of mathematics performance is included. These findings indicate that the gender gap exists in interactive physics classes, but may be due in large part to differences in preparation, background, and math skills as assessed by traditional survey instruments.
Long-term stability of the Wechsler Intelligence Scale for Children--Fourth Edition.
Watkins, Marley W; Smith, Lourdes G
2013-06-01
Long-term stability of the Wechsler Intelligence Scale for Children-Fourth Edition (WISC-IV; Wechsler, 2003) was investigated with a sample of 344 students from 2 school districts twice evaluated for special education eligibility at an average interval of 2.84 years. Test-retest reliability coefficients for the Verbal Comprehension Index (VCI), Perceptual Reasoning Index (PRI), Working Memory Index (WMI), Processing Speed Index (PSI), and the Full Scale IQ (FSIQ) were .72, .76, .66, .65, and .82, respectively. As predicted, the test-retest reliability coefficients for the subtests (Mdn = .56) were generally lower than the index scores (Mdn = .69) and the FSIQ (.82). On average, subtest scores did not differ by more than 1 point, and index scores did not differ by more than 2 points across the test-retest interval. However, 25% of the students earned FSIQ scores that differed by 10 or more points, and 29%, 39%, 37%, and 44% of the students earned VCI, PRI, WMI, and PSI scores, respectively, that varied by 10 or more points. Given this variability, it cannot be assumed that WISC-IV scores will be consistent across long test-retest intervals for individual students. PsycINFO Database Record (c) 2013 APA, all rights reserved.
Challis, Jonathan K; Hanson, Mark L; Friesen, Ken J; Wong, Charles S
2014-04-01
This work presents a critical assessment of the state and quality of knowledge around the aquatic photochemistry of human- and veterinary-use pharmaceuticals from laboratory experiments and field observations. A standardized scoring rubric was used to assess relevant studies within four categories: experimental design, laboratory-based direct and indirect photolysis, and field/solar photolysis. Specific metrics for each category are defined to evaluate various aspects of experimental design (e.g., higher scores are given for more appropriate characterization of light source wavelength distribution). This weight of evidence-style approach allowed for identification of knowledge strengths and gaps covering three areas: first, the general extent of photochemical data for specific pharmaceuticals and classes; second, the overall quality of existing data (i.e., strong versus weak); and finally, trends in the photochemistry research around these specific compounds, e.g. the observation of specific and consistent oversights in experimental design. In general, those drugs that were most studied also had relatively good quality data. The four pharmaceuticals studied experimentally at least ten times in the literature had average total scores (lab and field combined) of ≥29, considered decent quality; carbamazepine (13 studies; average score of 31), diclofenac (12 studies; average score of 31), sulfamethoxazole (11 studies; average score of 34), and propranolol (11 studies; average score of 29). Major oversights and errors in data reporting and/or experimental design included: lack of measurement and reporting of incident light source intensity, lack of appropriate controls, use of organic co-solvents in irradiation solutions, and failure to consider solution pH. Consequently, a number of these experimental parameters were likely a cause of inconsistent measurements of direct photolysis rate constants and quantum yields, two photochemical properties that were highly variable in the literature. Overall, the assessment rubric provides an objective and scientifically-defensible set of metrics for assessing the quality of a study. A major recommendation is the development of a method guideline, based on this rubric, for conducting and reporting on photochemical studies that would produce consistent and reliable data for quantitative comparison across studies. Furthermore, an emphasis should be placed on conducting more dual-fate studies involving controlled photolysis experiments in natural sunlight, and whole system fate studies in either natural or artificial systems. This would provide accurate data describing the actual contribution of photolysis to the overall fate of pharmaceuticals in the environment.
Systematic Reviews in Sports Medicine.
DiSilvestro, Kevin J; Tjoumakaris, Fotios P; Maltenfort, Mitchell G; Spindler, Kurt P; Freedman, Kevin B
2016-02-01
The number of systematic reviews published in the orthopaedic literature has increased, and these reviews can help guide clinical decision making. However, the quality of these reviews can affect the reader's ability to use the data to arrive at accurate conclusions and make clinical decisions. To evaluate the methodological and reporting quality of systematic reviews and meta-analyses in the sports medicine literature to determine whether such reviews should be used to guide treatment decisions. The hypothesis was that many systematic reviews in the orthopaedic sports medicine literature may not follow the appropriate reporting guidelines or methodological criteria recommended for systematic reviews. Systematic review. All clinical sports medicine systematic reviews and meta-analyses from 2009 to 2013 published in The American Journal of Sports Medicine (AJSM), The Journal of Bone and Joint Surgery (JBJS), Arthroscopy, Sports Health, and Knee Surgery, Sports Traumatology, Arthroscopy (KSSTA) were reviewed and evaluated for level of evidence according to the guidelines from the Oxford Centre for Evidence-Based Medicine, for reporting quality according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement, and for methodological quality according to the Assessment of Multiple Systematic Reviews (AMSTAR) tool. Analysis was performed by year and journal of publication, and the levels of evidence included in the systematic reviews were also analyzed. A total of 200 systematic reviews and meta-analyses were identified over the study period. Of these, 53% included evidence levels 4 and 5 in their analyses, with just 32% including evidence levels 1 and 2 only. There were significant differences in the proportion of articles with high levels of evidence (P < .001) and low levels of evidence (P = .005) by journal. The average PRISMA score was 87% and the average AMSTAR score was 73% among all journals. The average AMSTAR and PRISMA scores were significantly different by journal (P = .002 and .001, respectively) and by year (P = .046 and .019, respectively). Arthroscopy, AJSM, and JBJS all scored higher than Sports Health and KSSTA on the PRISMA and AMSTAR. The average PRISMA score by year varied from 85% to 89%, and the average AMSTAR score varied from 70% to 76%. Systematic reviews and meta-analyses in orthopaedics sports medicine literature relied on evidence levels 4 and 5 in 53% of studies over the 5-year study period. Overall, PRISMA and AMSTAR scores are high and may be better than those in other disciplines. Readers need to be conscious of potential shortcomings when reading systematic reviews and using them in practice. © 2015 The Author(s).
Gjærde, Line K; Gamborg, Michael; Ängquist, Lars; Truelsen, Thomas C; Sørensen, Thorkild I A; Baker, Jennifer L
2017-11-01
The incidence of ischemic stroke among young adults is rising and is potentially due to an increase in stroke risk factors occurring at younger ages, such as obesity. To investigate whether childhood body mass index (BMI) and change in BMI are associated with adult ischemic stroke and to assess whether the associations are age dependent or influenced by birth weight. This investigation was a population-based cohort study of schoolchildren born from 1930 to 1987, with follow-up through national health registers from 1977 to 2012 in Denmark. Participants were 307 677 individuals (8899 ischemic stroke cases) with measured weight and height at ages 7 to 13 years. The dates of the analysis were September 1, 2015, to May 27, 2016. Childhood BMI, change in BMI, and birth weight. Ischemic stroke events were divided into early (≤55 years) or late (>55 years) age at diagnosis. The study cohort comprised 307 677 participants (approximately 49% female and 51% male). During the study period, 3529 women and 5370 men experienced an ischemic stroke. At all ages from 7 to 13 years, an above-average BMI z score was positively associated with early ischemic stroke. At age 13 years, a BMI z score of 1 was associated with hazard ratios (HRs) of 1.26 (95% CI, 1.11-1.43) in women and 1.21 (95% CI, 1.10-1.33) in men. No significant associations were found for below-average BMI z scores. Among children with above-average BMI z scores at age 7 years, a score increase of 0.5 from ages 7 to 13 years was positively associated with early ischemic stroke in women (HR, 1.10; 95% CI, 1.01-1.20) and in men (HR, 1.08; 95% CI, 1.00-1.16). Similarly, among children with below-average BMI z scores at age 7 years, a score increase of 0.5 from ages 7 to 13 years was positively associated with early ischemic stroke in women (HR, 1.14; 95% CI, 1.06-1.23) and in men (HR, 1.10; 95% CI, 1.04-1.18). Adjusting for birth weight minimally affected the associations. Independent of birth weight, above-average childhood BMI and increases in BMI during childhood are positively associated with early adult ischemic stroke. To avoid the occurrence of early ischemic stroke associated with childhood overweight and obesity, these results suggest that all children should be helped to attain and maintain healthy weights.
Separate Vertical Wirings for the Extra-articular Fractures of the Distal Pole of the Patella.
Kim, Young Mo; Yang, Jun Young; Kim, Kyung Cheon; Kang, Chan; Joo, Yong Bum; Lee, Woo Yong; Hwang, Jung Mo
2011-12-01
To evaluate the usefulness of separate vertical wirings for extra-articular fracture of distal pole of patella. We have analyzed the clinical results of 18 cases that underwent separate vertical wirings for extra-articular fracture of distal pole of the patella from March 2005 to March 2010, by using the range of motion and Bostman score. Occurrence of complication was also evaluated. Additionally, by taking simple radiographs, the correlation between the postoperative degree of anterior transposition of bone fragment and the time of bone fusion, preoperative length of bone fragment, and occurrence of comminuted fracture were investigated. It took an average of 13.8 weeks for radiological bone union after separate vertical wiring fixation. Flexion contracture was an average of 0.8 degrees and further flexion was an average of 127.6°, and Bostman score was an average of 27.5 points (excellent in 12 cases, and good in 6 cases). On the first postoperative year, average flexion contracture was 0.6 degrees and further flexion was an average of 136.3°, which exhibited increased joint motion and recovery to normal range of motion, and Bostman score was an average of 28.7 points (excellent in 16 cases, and good in 2 cases). There was no statistically significant difference between the preoperative bone fragment length and presence of comminution, and degree of anterior transposition of bone fragment after fracture union on simple radiograph (p=0.175, p=0.146). We were able to obtain satisfactory clinical results, while preserving the bone fragment by separate vertical wiring fixation for extra-articular fracture of distal pole of patella. Moreover, the method is easy to perform, which is also considered as a useful surgical method for extra-articular fracture of distal pole of patella.